JP6463290B2 - Construction master device - Google Patents

Description

  The present invention operates a plurality of cylinder locks with a construction master key during the construction period of a building such as an apartment, and after completion of construction, operates a corresponding cylinder lock with a change key to operate the construction master key. It is related with the construction master apparatus made impossible.

  Conventionally, during a construction period for constructing an apartment or the like, a cylinder lock installed on a front door of a plurality of rooms is operated (locked or unlocked) with a construction master key. After the completion of construction, operate the corresponding cylinder lock with the change key to disable the operation of the construction master key.

  Each cylinder lock has a cylinder barrel, a cylinder plug that has a keyhole and is rotatably arranged on the cylinder barrel, and a construction device. After the construction is completed, the construction master is operated by operating the construction device with the change key. Disables key operations. The construction device for each cylinder lock has one or two construction columns formed on the cylinder body and the cylinder plug, and a lower pin, an upper pin, a lower pin, and a construction ball assembled between the upper pins housed in each construction column. The cylinder plug is rotated by a change key corresponding to the cylinder lock, and the construction ball is removed, thereby making it impossible to rotate the cylinder plug of each cylinder lock by the construction master key. After the construction is completed, the corresponding cylinder lock is operated (locked or unlocked) with the change key.

  In the conventional technology, the construction device of each cylinder lock uses one or two constraining columns containing a lower pin, an upper pin and a constraining ball. There is a problem that the duplicate key can be duplicated.

  It is an object of the present invention to provide a construction master device that cannot easily assume a key combination using a construction master key.

According to a first aspect of the present invention, there are provided a cylinder cylinder, a plurality of cylinder locks each having a cylinder plug having a key hole that is continuous with the key insertion port and rotatably disposed in the cylinder cylinder, and the key insertion port from the key insertion port. A construction master key that is inserted into the key hole of each cylinder lock, a change key that is provided corresponding to each cylinder lock and is inserted into the corresponding key hole of the cylinder lock from the key insertion port, and The cylinder plug is arranged on the side of the key insertion opening and provided in each cylinder lock, and the cylinder plug can be rotated by the construction master key and a change key corresponding to each cylinder lock, and other than corresponding to each cylinder lock The master device is disposed between a master device that prohibits rotation of the cylinder plug by a change key and the key insertion slot. A construction device provided in each cylinder lock, and during operation, each cylinder lock is operated with the construction master key, and after completion of construction, the corresponding cylinder lock is operated with each change key. A construction master device that operates the construction device and disables the operation by the construction master key. The construction device includes a plug hole that penetrates the cylinder plug in a radial direction and opens into the key hole; and A plurality of three or more const columns composed of a cylinder hole that passes through the cylinder cylinder in a radial direction continuously to the plug hole, a first lower pin slidably disposed in the plug hole, and the cylinder hole A first pin having a first upper pin slidably disposed on the first lower pin and biased by the first lower pin. A group, a second lower pin slidably disposed in the plug hole, a second upper pin slidably disposed in the body hole and biased to the second lower pin, and the second lower pin And a second pin group having a constrained ball assembled between the second upper pins, and a ball storage hole formed in the cylinder plug corresponding to each constraining column and capable of storing the constrained ball. The first pin group is accommodated in one or a plurality of const columns instead of all the const columns, and the second pin group is accommodated in the remaining const columns other than the const column in which the first pin group is accommodated. The construction master key has a long groove formed corresponding to the first and second pin groups of the construction column in each cylinder lock, and with the insertion of the key hole of each cylinder lock The first lower pin is pushed and moved by the long groove so that the boundary between the first lower pin and the first upper pin is located between the cylinder body and the cylinder plug, and the key hole of each cylinder lock is inserted. Along with this, the second lower pin is pushed and moved by the long groove, and the boundary between the constant ball and the second upper pin is located between the cylinder body and the cylinder plug. In the cylinder lock, it is formed corresponding to the first pin group of the constant column, is formed corresponding to the first dimple hole having the same hole depth as the long groove, and the second pin group of the constant column. A second dimple hole having a shallower depth than the non-dimple portion or the long groove, and the first lower pin is inserted by the first dimple hole in accordance with the insertion of the corresponding keyhole of the cylinder lock. The boundary between the first lower pin and the first upper pin is positioned between the cylinder body and the cylinder plug, and the non-dimple portion or the The second dimple hole is used to push and move the second lower pin to place the constant ball in the barrel hole, and the end surface of the second lower pin on the second upper pin side is connected to the cylinder barrel and the cylinder plug. It is a construction master device that is located between.

According to a second aspect of the present invention, there are provided a cylinder cylinder, a plurality of cylinder locks each having a cylinder plug having a key hole continuous with the key insertion opening and rotatably disposed in the cylinder cylinder, and the key insertion opening from the key insertion opening. A construction master key that is inserted into the key hole of each cylinder lock, a change key that is provided corresponding to each cylinder lock and is inserted into the corresponding key hole of the cylinder lock from the key insertion port, and The cylinder plug is arranged on the side of the key insertion opening and provided in each cylinder lock, and the cylinder plug can be rotated by the construction master key and a change key corresponding to each cylinder lock, and other than corresponding to each cylinder lock The master device is disposed between a master device that prohibits rotation of the cylinder plug by a change key and the key insertion slot. A construction device provided in each cylinder lock, and during operation, each cylinder lock is operated with the construction master key, and after completion of construction, the corresponding cylinder lock is operated with each change key. A construction master device that operates the construction device and disables the operation by the construction master key. The construction device includes a plug hole that penetrates the cylinder plug in a radial direction and opens into the key hole; and A plurality of three or more const columns composed of a cylinder hole that passes through the cylinder cylinder in a radial direction continuously to the plug hole, a first lower pin slidably disposed in the plug hole, and the cylinder hole A first pin having a first upper pin slidably disposed on the first lower pin and biased by the first lower pin. A group, a second lower pin slidably disposed in the plug hole, a second upper pin slidably disposed in the body hole and biased to the second lower pin, and the second lower pin And a second pin group having a constrained ball assembled between the second upper pins, and a ball storage hole formed in the cylinder plug corresponding to each constraining column and capable of storing the constrained ball. The first pin group is accommodated in one or a plurality of const columns instead of all the const columns, and the second pin group is accommodated in the remaining const columns other than the const column in which the first pin group is accommodated. The first pin group is housed in the constraining column so that the boundary between the first lower pin and the first upper pin is positioned between the cylinder body and the cylinder plug before the key is inserted. Pin group is key Prior to insertion, the boundary between the construction ball and the second upper pin is housed in the construction column, located between the cylinder body and the cylinder plug, and the construction master key is inserted into the keyhole of each cylinder lock. Accordingly, the change key is arranged corresponding to the master device without corresponding to the first and second pin groups of the respective constrain columns, and each change key is provided in the corresponding cylinder lock. A first dimple hole formed corresponding to the first pin group, a non-dimple portion formed corresponding to the second pin group of the constant column, or a hole depth shallower than the first dimple hole. a second dimple hole, with the insertion of the key hole of the corresponding cylinder lock, move pressing the first lower pin by said first dimple hole And held without the boundary of the first lower pin and the first upper pin, positioned between the cylinder barrel and the cylinder plug, with the insertion of the key hole of the corresponding cylinder lock, wherein the non-dimple Alternatively, the second lower pin is pushed and moved by the second dimple hole, the const ball is disposed in the body hole, and the end surface of the second lower pin on the second upper pin side is set to the cylinder body and the cylinder. The construction master device is located between plugs.

According to the first aspect of the present invention, the construction device for each cylinder lock has a plurality of three or more column columns, and each column column is selected to store the first or second pin group. The mode (storage pattern) P for storing the first or second pin group for the constant column is the first and second column numbers n (where n = 3, 4, 5, 6, 7,...). The number of types of the second pin group is the nth power (for example, if each of the first and second pin groups is one type, P = ²ⁿ ).
In order to operate each cylinder lock, it is necessary to duplicate the number of combined keys that are the storage mode (storage pattern) P of the first and second pin groups.
In addition, in the long groove of the construction master key and the non-dimple portion or the second dimple of each change key, the second pin group is pushed and moved with many steps between the groove depth and the hole depth. Assuming that the number of steps of height and hole depth is m and the number of columns of the constraining column is n, in order to operate each cylinder lock, it is necessary to duplicate the number of keys, which is the nth power of the number of steps m.
Thereby, since the construction master key has long grooves corresponding to the first and second pin groups of each construction column, the mode (housing pattern) P and groove for housing the first and second pin groups from the construction master key. A step between the depth and the hole depth cannot be easily assumed, and it becomes difficult to duplicate a key for operating each cylinder lock.

According to the second aspect of the present invention, the construction device for each cylinder lock has a plurality of three or more column columns, and each column column is selected to store the first or second pin group. The mode (storage pattern) P for storing the first or second pin group for the constant column is the first and second column numbers n (where n = 3, 4, 5, 6, 7,...). The number of types of the second pin group is the nth power (for example, if each of the first and second pin groups is one type, P = ²ⁿ ).
In order to operate each cylinder lock, it is necessary to duplicate the number of combined keys that are the storage mode (storage pattern) P of the first and second pin groups.
Further, in the first dimple hole and the non-dimple portion or the second dimple hole of each change key, the second pin group is pushed and moved by a number of steps in the hole depth, and the number of steps in the hole depth m Assuming that the number of constant columns is n, in order to operate each cylinder lock, it is necessary to duplicate the number of change keys, which is the nth power of the number of steps m.
Thereby, the construction master key is arranged corresponding to the master device without corresponding to the first and second pin groups of each construction along with the key hole of each cylinder lock. A mode (housing pattern) P for housing the first and second pin groups and a step in hole depth cannot be easily assumed, and it is difficult to duplicate a key for operating each cylinder lock.

It is a mimetic diagram showing the construction master device of a 1st embodiment. It is a figure which shows a cylinder lock, Comprising: (a) is a top view, (b) is a side view, (c) is a front view. It is a figure which shows the cylinder plug which comprises a cylinder lock, Comprising: (a) is one side view, (b) is a top view, (c) is the other side view. It is a figure which shows the cylinder plug which comprises a cylinder lock, Comprising: (a) is a front view, (b) is CC sectional expanded view of FIG.3 (b). It is a figure which shows the cylinder plug which comprises a cylinder lock, Comprising: (a) is DD sectional enlarged view of Fig.4 (a), (b) is a partial sectional enlarged view of Fig.5 (a). It is a figure which shows the cylinder lock (1st cylinder lock) which comprises the construction master apparatus of 1st Embodiment, Comprising: It is the BB cross-sectional enlarged view of FIG.2 (b). It is EE sectional drawing of FIG. It is a figure which shows each cylinder lock (1st and 2nd cylinder lock) of the construction master apparatus of 1st Embodiment, Comprising: It is an AA cross-sectional enlarged view of Fig.2 (a). In the construction master device of a 1st embodiment, it is a principal part enlarged view showing the 1st pin group. In the construction master device of a 1st embodiment, it is an important section section enlarged view showing the 2nd pin group. It is a principal part expanded sectional view which shows a 3rd pin group. It is a principal part expanded view which shows a 4th pin group. It is a principal part cross-sectional enlarged view which shows a 5th pin group. It is a figure which shows the cylinder lock (2nd cylinder lock) which comprises the construction master apparatus of 1st Embodiment, Comprising: It is the BB cross-sectional enlarged view of FIG.2 (b). It is FF sectional drawing of FIG. It is a figure which shows the construction master key which comprises the construction master apparatus of 1st Embodiment, (a) is a key table top view, (b) is a key side view, (c) is GG of Fig.16 (a). Sectional drawing and (d) are HH sectional drawings of Fig.16 (a). It is a figure which shows the change key (1st change key) which comprises the construction master apparatus of 1st Embodiment, Comprising: (a) is a key table top view, (b) is a key side view, (c) is FIG. It is II sectional drawing of a). It is a figure which shows the change key (2nd change key) which comprises the construction master apparatus of 1st Embodiment, Comprising: (a) is a key table top view, (b) is a key side view, (c) is FIG. It is JJ sectional drawing of a). In the construction master apparatus of 1st Embodiment, it is the state which inserted the construction master key in the key hole of the cylinder lock (1st cylinder lock) during construction, Comprising: In sectional expanded view which shows each construction column, each master column, etc. is there. It is KK sectional drawing of FIG. In the construction master device of 1st Embodiment, it is a cross-sectional enlarged view which shows each fixed column etc. in the state which inserted the construction master key into each cylinder lock (1st and 2nd cylinder lock) during construction. . In the construction master apparatus of 1st Embodiment, it is the state which inserted the construction master key in the keyhole of the cylinder lock (2nd cylinder lock) during construction, Comprising: In sectional expanded view which shows each construction column, each master column, etc. is there. It is LL sectional drawing of FIG. In the construction master device of the first embodiment, after completion of the construction, the change key (first change key) is inserted into the key hole of the cylinder lock (first cylinder lock), and each construction column, each master column, etc. FIG. It is MM sectional drawing of FIG. In the construction master device of the first embodiment, after construction is completed, the change key (first change key) is inserted into the key hole of the cylinder lock (first cylinder lock), and is an enlarged cross-sectional view showing each fixed column and the like. It is. In the construction master device of 1st Embodiment, it is an expanded sectional view which shows the state which operated the construction device of the cylinder lock (1st cylinder lock) with the change key (1st change key), and canceled the construction. It is the NN cross-section enlarged view of FIG. In the construction master device of the first embodiment, after completion of construction, the change key (second change key) is inserted into the key hole of the cylinder lock (second cylinder lock), and each of the construction columns, the master column, etc. is shown. It is a cross-sectional enlarged view. It is OO sectional drawing of FIG. In the construction master device of the first embodiment, after construction is completed, a change key (second change key) is inserted into a key hole of a cylinder lock (second cylinder lock), and an enlarged cross-sectional view showing each fixed column and the like It is. In the construction master device of 1st Embodiment, it is an expanded sectional view which shows the state which operated the construction device of the cylinder lock (2nd cylinder lock) with the change key (2nd change key), and canceled the construction. It is PP sectional drawing of FIG. In the construction master device of a 1st embodiment, it is a section enlarged view showing the state where the construction master key was inserted in the key hole of the cylinder lock (the 1st cylinder lock) after releasing the construction of the cylinder lock (the 1st cylinder lock). In the construction master device of 1st Embodiment, it is a figure which shows the state which inserted the construction master key in the key hole of the cylinder lock (2nd cylinder lock) after releasing the constraint of the cylinder lock (2nd cylinder lock). In the construction master device of the first embodiment, a cross-section showing a state in which the change key (first change key) is inserted into the key hole of the cylinder lock (first cylinder lock) after releasing the cylinder lock (first cylinder lock). It is an enlarged view. In the construction master device of the first embodiment, a cross-section showing a state in which the change key (second change key) is inserted into the key hole of the cylinder lock (second cylinder lock) after releasing the constraint of the cylinder lock (second cylinder lock). It is an enlarged view. In the construction master device of the first embodiment, a cross-section showing a state in which a change key (second change key) is inserted into a key hole of a cylinder lock (first cylinder lock) after releasing the constraint of the cylinder lock (first cylinder lock). It is an enlarged view. In the construction master device of the first embodiment, a cross-section showing a state in which a change key (first change key) is inserted into a key hole of a cylinder lock (second cylinder lock) after releasing the cylinder lock (second cylinder lock). It is an enlarged view. It is a schematic diagram which shows the construction master apparatus of 2nd Embodiment. It is a figure which shows the cylinder lock (1st cylinder lock) which comprises the construction master apparatus of 2nd Embodiment, Comprising: It is the BB cross-sectional enlarged view of FIG.2 (b). FIG. 42 is a cross-sectional view along the line aa in FIG. 41. It is a figure which shows the cylinder lock (1st and 2nd cylinder lock) which comprises the construction master apparatus of 2nd Embodiment, Comprising: It is the AA cross-section enlarged view of Fig.2 (a). In the construction master device of 2nd Embodiment, it is a principal part expanded view which shows a 1st pin group. In the construction master device of 2nd Embodiment, it is a principal part expanded view which shows the 2nd pin group. It is a figure which shows the cylinder lock (2nd cylinder lock) which comprises 2nd Embodiment, Comprising: It is BB sectional drawing of FIG.2 (b). It is bb sectional drawing of FIG. It is a figure which shows the construction master key which comprises the construction master apparatus of 2nd Embodiment, (a) is a key table top view, (b) is a key side view, (c) is c- of FIG. 48 (a). It is c sectional drawing. It is a figure which shows the change key (1st change key) which comprises the construction master apparatus of 2nd Embodiment, Comprising: (a) is a key table top view, (b) is a key side view, (c) is FIG. It is a dd sectional view of a). It is a figure which shows the change key (2nd change key) which comprises the construction master apparatus of 2nd Embodiment, Comprising: (a) Key table top view, (b) is a key side view, (c) is FIG. It is ee sectional drawing of). In the construction master device of 2nd Embodiment, it is the state which inserted the construction master key in the keyhole of the cylinder lock (1st cylinder lock) during construction, Comprising: In sectional expanded view which shows each construction column, each master column, etc. is there. In the construction master device of 2nd Embodiment, it is the state which inserted the construction master key in each cylinder lock (1st and 2nd cylinder lock) during construction, Comprising: It is a cross-sectional enlarged view which shows each fixed column etc. . In the construction master device of 2nd Embodiment, it is the state which inserted the construction master key in the keyhole of the cylinder lock (2nd cylinder lock) during construction, Comprising: It is a cross-sectional enlarged view which shows each construction column, each master column, etc. is there. In the construction master device of the second embodiment, after the construction is completed, the change key (first change key) is inserted into the key hole of the cylinder lock (first cylinder lock), and each construction column, each master column, etc. FIG. It is ff sectional drawing of FIG. In the construction master device of the second embodiment, after construction is completed, the change key (first change key) is inserted into the key hole of the cylinder lock (first cylinder lock), and is an enlarged cross-sectional view showing each fixed column, etc. It is. In the construction master device of 2nd Embodiment, it is a cross-sectional enlarged view which shows the state which operated the construction device of the cylinder lock (1st cylinder lock) with the change key (1st change key), and canceled the construction. It is gg sectional drawing of FIG. In the construction master device of the second embodiment, after completion of the construction, the change key (second change key) is inserted into the key hole of the cylinder lock (second cylinder lock), and each of the construction columns, master columns, etc. is shown. It is a cross-sectional enlarged view. FIG. 60 is a cross-sectional view taken along the line hh of FIG. 59. In the construction master device of the second embodiment, after construction is completed, the change key (second change key) is inserted into the key hole of the cylinder lock (second cylinder lock), and is an enlarged cross-sectional view showing each fixed column, etc. It is. In the construction master device of 2nd Embodiment, it is a cross-sectional enlarged view which shows the state which operated the construction device of the cylinder lock (2nd cylinder lock) with the change key (2nd change key), and canceled the construction. FIG. 63 is a cross-sectional view taken along the line ii of FIG. 62. In the construction master device of 2nd Embodiment, after releasing the construction of a cylinder lock (1st cylinder lock), it is a cross-sectional enlarged view which shows the state which inserted the construction master key in the keyhole of the cylinder lock (1st cylinder lock). In the construction master device of 2nd Embodiment, it is a figure which shows the state which inserted the construction master key in the keyhole of the cylinder lock (2nd cylinder lock) after releasing the constraint of the cylinder lock (2nd cylinder lock). In the construction master device of the second embodiment, a cross section showing a state in which the change key (first change key) is inserted into the key hole of the cylinder lock (first cylinder lock) after releasing the cylinder lock (first cylinder lock). It is an enlarged view. In the construction master device of the second embodiment, a cross section showing a state in which the change key (second change key) is inserted into the key hole of the cylinder lock (second cylinder lock) after releasing the constraint of the cylinder lock (second cylinder lock). It is an enlarged view. In the construction master device of the second embodiment, a cross section showing a state in which the change key (second change key) is inserted into the key hole of the cylinder lock (first cylinder lock) after releasing the cylinder lock (first cylinder lock). It is an enlarged view. In the construction master device of the second embodiment, a cross-section showing a state in which the change key (first change key) is inserted into the key hole of the cylinder lock (second cylinder lock) after releasing the cylinder lock (second cylinder lock). It is an enlarged view.

A construction master device according to the present invention will be described with reference to FIGS.
Hereinafter, the construction master device X1 of the first embodiment and the construction master device X2 of the second embodiment will be described.

<First Embodiment>
Hereinafter, the construction master device X1 of the first embodiment will be described with reference to FIGS.

In FIG. 1, the construction master device X1 of the first embodiment (hereinafter referred to as “construction master device X1”) is constructed of a plurality of cylinder locks S1, S2, S3 using a construction master key MK1 during construction work of an apartment or the like. , ... are operated (locking or unlocking). The construction master device X1 cannot be operated by the construction master key MK1 by operating the construction devices of the corresponding cylinder locks S1, S2, S3,... With the change keys CK1, CK2, CK3,. To.
For convenience of explanation, the construction master device X1 will be described with respect to a configuration including first and second cylinder locks S1, S2, a construction master key MK1, and change keys CK1, CK2 corresponding to the cylinder locks S1, S2.

  1 to 39, the construction master device X1 includes a plurality of cylinder locks S1, S2 (first and second cylinder locks), a construction master key MK1, and change keys CK1, CK2 corresponding to the cylinder locks S1, S2. (First and second change keys).

<Cylinder lock S1>
1 to 39, the cylinder lock S1 (first cylinder lock) includes a cylinder body (outer cylinder) 51, a cylinder plug (inner cylinder) 52, a construction device Y1, and a master device Z1.

  As shown in FIGS. 6 and 7, the cylinder body 51 has a circular inner peripheral hole 53. The circular inner peripheral hole 53 is arranged with the hole center line concentric with the center line of the cylinder body 51. The circular inner peripheral hole 53 passes through the cylinder body 51 in the center line direction CL of the cylinder body 51. The circular inner peripheral hole 53 opens at each cylinder end 51A, 51B of the cylinder cylinder 51 in the center line direction CL of the cylinder cylinder 51.

As shown in FIGS. 3 to 8, the cylinder plug 52 is formed in a cylindrical shape and has a key insertion port 54 and a key hole 55.
The key insertion port 54 is formed on the other plug end 52B side of the cylinder plug 52. The key insertion port 54 opens to the other plug end 52B of the cylinder plug 52 in the center line direction CL of the cylinder plug 52.
The key hole 55 is opened adjacent to the plug hole 26 of each of the const columns 12 to 14 and 19 to 21 described later, and extends to the lower end in the vertical direction perpendicular to the hole center line of each of the const columns 12 to 14. The In the key hole 55, the hole end 55A on the lower end side in the vertical direction opens to the outer periphery 52a of the cylinder plug 52 (see FIGS. 7 and 8). The key hole 55 penetrates the cylinder plug 52 in the center line direction CL of the cylinder plug 52. The key hole 55 opens in one plug end 52 </ b> A of the cylinder plug 52 and the key insertion port 54 in the center line direction CL of the cylinder plug 52. As shown in FIG. 4B, the key hole 55 has a key hole width H in the direction orthogonal to the center line CT of the cylinder plug 52.

  As shown in FIGS. 6 and 7, the cylinder plug 52 is disposed in a circular inner peripheral hole 53 of the cylinder body 51 with the center line CT concentric with the center line CT of the cylinder body 51. The cylinder plug 52 is disposed in the circular inner peripheral hole 53 of the cylinder body 51 with a gap. The cylinder plug 52 is inserted (placed) in a circular inner peripheral hole 53 of the cylinder body 51 so as to be rotatable with respect to the cylinder body 51.

As shown in FIG. 6, the construction device Y1 has a master device Z1 disposed between the key insertion port 54 of the cylinder lock S1 (the other cylinder end 51B of the cylinder cylinder 51) and the cylinder lock S1 (cylinder cylinder 51). And a cylinder plug 52).
As shown in FIGS. 6, 7, 9, and 10, the construction apparatus Y <b> 1 includes three or more plurality of construction columns, for example, six construction columns 12 to 14 and 19 to 21, and a plurality of first pin groups P <b> 1. A plurality of second pin groups P2 and a plurality of ball storage holes 41 to 46 are provided.

  Each of the const columns 12 to 14 and 19 to 21 is disposed on one cylinder end 51A side of the cylinder cylinder 51, as shown in FIG. The respective const columns 12 to 14 and 19 to 21 are formed in the cylinder body 51 and the cylinder plug 52.

As shown in FIG. 7, the respective const columns 12 to 14 are arranged at an angle of 90 degrees with respect to the keyhole width center line HL of the keyhole 55 in the circumferential direction of the cylinder body 51.
The respective const columns 12 to 14 are arranged side by side with a hole pitch T in the center line direction CL of the cylinder body 51.

  As shown in FIG. 6, the respective const columns 19 to 21 are arranged at an angle of 180 degrees with respect to the respective const columns 12 to 14 in the circumferential direction of the cylinder body 51.

As shown in FIG. 6, the respective const columns 19 to 21 are arranged in parallel with a hole pitch T in the center line direction CL of the cylinder body 51.
The respective const columns 19 to 21 are arranged with a ½ hole pitch (1/2 × T) shifted from the respective const columns 12 to 14 in the center line direction CL of the cylinder body 51.
Thereby, in the center line direction CL of the cylinder body 51, the constant column 21 is disposed between the respective const columns 13 and 14, and the cons column 20 is disposed between the respective const columns 12 and 13. The constant column 19 is disposed on the other cylinder end 51 </ b> B side of the cylinder cylinder 51 from the constant column 12.

  Each of the const columns 12 to 14 and 19 to 21 includes a body hole 25 and a plug hole 26.

In each of the const columns 12 to 14 and 19 to 21, the body hole 25 is formed in the cylinder body 51 as shown in FIGS. 6 and 7. The body hole 25 is formed in a circular hole, for example. The body hole 25 passes through the cylinder body 51 continuously to the plug hole 26 in the radial direction of the cylinder body 51. The body hole 25 extends toward the key hole 55, and opens to the outer periphery 51 a and the circular inner periphery hole 53 of the cylinder body 51.
In each of the const columns 12 to 14, the body hole 25 closes the opening of the outer periphery 51 a of the cylinder body 51 with a spring stop plate 56. In each of the const columns 19 to 21, the body hole 25 closes the opening of the outer periphery 51 a of the cylinder body 51 with a spring stop plate 57. The spring stop plates 56 and 57 are fixed to the cylinder body 51.

In each of the const columns 12 to 14 and 19 to 21, the plug hole 26 is formed in the cylinder plug 52 as shown in FIGS. 3 to 7. The plug hole 26 is formed in a circular hole, for example. The plug hole 26 is formed corresponding to the body hole 25. The plug hole 26 penetrates the cylinder plug 52 in the radial direction of the cylinder plug 52. The plug hole 26 opens to the outer periphery 52 a of the cylinder plug 52 and the key hole 55 . As shown in FIG. 5B , the plug hole 26 has a step portion 26 </ b > A on the key hole 55 side and is reduced in diameter so as to communicate with the key hole 55.

  Each first pin group P1 includes a first lower pin 31 (lower pin), a first upper pin 32 (upper pin), and a first pin spring 33, as shown in FIGS.

As shown in FIG. 9, the first lower pin 31 has a pin front end surface 31A and a pin rear end surface 31B, and the pin front end surface 31A side has a step portion 31C and is reduced in diameter.
The first lower pin 31 is slidably disposed in the plug hole 26 in the radial direction by inserting the pin tip surface 31A side into the plug hole 26 from the outer periphery 52a of the cylinder plug 52.
The first lower pin 31 is disposed in the plug hole 26 with the stepped portion 31 </ b> C contacting the stepped portion 26 </ b> A of the plug hole 26. As a result, the first lower pin 31 is held by the cylinder plug 52 in the plug hole 26 and does not fall into the key hole 55.
In the first lower pin 31, the pin tip surface 31 </ b> A side protrudes into the key hole 55 through the plug hole 26. The pin tip surface 31A of the first lower pin 31 is positioned to protrude from the center line CT by a distance τ in the radial direction.

As shown in FIG. 9, the first upper pin 32 has a pin front end surface 32A and a pin rear end surface 32B. The first upper pin 32 has a spring accommodating recess 32 </ b> C, and the spring accommodating recess 32 </ b> C is formed on the pin rear end face 32 </ b> B side of the first upper pin 32. The spring housing recess 32 </ b> C opens in the pin rear end surface 32 </ b> B of the first upper pin 32.
The first upper pin 32 is slidably disposed in the body hole 25 in the radial direction by inserting the pin tip surface 32A side into the body hole 25 from the outer periphery 51a of the cylinder body 51.
In the first upper pin 32, the pin tip end surface 32 </ b> A side protrudes through the body hole 25 into the plug hole 26. The pin front end surface 32 </ b> A of the first upper pin 32 is in contact with the pin rear end surface 31 </ b> B of the first lower pin 31 in the plug hole 26.
The portions of the first lower pin 31 and the first upper pin 32 that are in contact with each other serve as a boundary between the first lower pin 31 and the first upper pin 32.

As shown in FIG. 9, the first upper pin spring 33 is disposed in the body hole 25 and is inserted into the spring accommodating recess 32 </ b> C of the first upper pin 32. The first pin spring 33 is disposed between the spring housing recess 32 </ b> C and the spring stop plate 56 in the body hole 25. The first spring pin 33 is compressed and comes into contact with the bottom surface of the spring housing recess 32 </ b> C and the spring stop plate 56.
Thereby, the first pin spring 33 biases the first upper pin 32 to the first lower pin 31 by a spring force (biasing force) in the radial direction. The first upper pin 32 is biased to the first lower pin 31 by the spring force (biasing force) of the first pin spring 33.

As shown in FIGS. 6, 7 and 9, each first pin group P <b> 1 is housed, for example, in each of the const columns 13, 19, and 21.
As a result, in the cylinder lock S1, the first pin group P1 is housed in the plurality of constant columns 13, 19, 21 instead of all the constant columns 12-14, 19-21.

  As shown in FIGS. 6, 7, and 10, the second pin group P <b> 2 includes a second lower pin 35 (lower pin), a second upper pin 36 (upper pin), a constrain ball 37, and a second pin spring 38. Have.

Second lower pin 35, as shown in FIG. 10, it has a pin tip end face 35A and the pin rear end face 35B, the pin tip surface 35A side is reduced in diameter with a stepped portion 35C. The second lower pin 35 is formed shorter than the first lower pin 31 and has a ball slot 35D. The ball slot 35D is formed on the pin rear end surface 35B side of the second lower pin 35 and opens to the pin rear end surface 35B of the second lower pin 35.
The second lower pin 35 is slidably disposed in the plug hole 26 in the radial direction by inserting the pin tip surface 35A side into the plug hole 26 from the outer periphery 52a of the cylinder plug 52.
The second lower pin 35 is disposed in the plug hole 26 with the stepped portion 35 </ b> C contacting the stepped portion 26 </ b> A of the plug hole 26. Accordingly, the second lower pin 35 is held by the cylinder plug 52 in the plug hole 26 and does not fall into the key hole 55.
In the second lower pin 35, the pin front end surface 35 </ b> A side protrudes into the key hole 55 through the plug hole 26. The pin front end surface 35A of the second lower pin 35 is positioned so as to protrude from the center line CT by a distance τ in the radial direction.

As shown in FIG. 10, the second upper pin 36 has a pin front end surface 36A and a pin rear end surface 36B. The second upper pin 36 has a spring accommodating recess 36 </ b> C, and the spring accommodating recess 36 </ b> C is formed on the pin rear end face 36 </ b> B side of the second upper pin 36. The spring housing recess 36 </ b> C opens in the pin rear end surface 36 </ b> B of the second upper pin 36.
The second upper pin 36 is slidably disposed in the body hole 26 in the radial direction by inserting the pin tip surface 36 </ b> A side into the body hole 25 from the outer periphery 51 a of the cylinder body 51.
In the second upper pin 36, the pin tip surface 36 </ b> A side protrudes into the plug hole 26 through the body hole 25.

As shown in FIG. 10, the consto ball 37 is disposed (stored) in the plug hole 26 and is assembled between the second lower pin 35 and the second upper pin 36.
The constrained ball 37 is inserted into the ball slot 35D of the second lower pin 35 so as to be movable (can be extracted), and is brought into contact with the pin tip surface 36A of the second upper pin 36.
The portions of the constant ball 37 and the second upper pin 36 that are in contact with each other serve as a boundary between the constant ball 37 and the second upper pin 36.

As shown in FIG. 10, the second pin spring 38 is disposed in the body hole 25 and is inserted into the spring accommodating recess 36C. The second pin spring 38 is disposed between the spring housing recess 36 </ b> C and the spring stop plate 56 (or the spring stop plate 57) in the body hole 25. The second pin spring 38 is compressed and brought into contact with the bottom surface of the spring housing recess 36 </ b> C and the spring stop plate 56 (or the spring stop plate 57).
As a result, the second pin spring 38 biases the second upper pin 36 and the constant ball 37 toward the second lower pin 35 by a spring force (biasing force) in the radial direction. The second upper pin 36 is biased to the second lower pin 35 by the spring force (biasing force) of the second pin spring 38.

As shown in FIGS. 6, 7, and 10, each second pin group P <b> 2 is accommodated in each of the const columns 12, 14, and 20, for example.
Thereby, in cylinder lock S1, the 2nd pin group P2 is accommodated in remaining cost columns 12, 14, and 20 other than the cost columns 13, 19, and 21 which accommodated the 1st pin group P1.

  Each of the ball storage holes 41 to 46 is formed in the cylinder plug 52 as shown in FIGS. Each of the ball storage holes 41 to 46 has a hole depth in the radial direction, and opens to the outer periphery 52 a of the cylinder plug 52. Each of the ball storage holes 41 to 46 is formed in a circular hole that is larger than the diameter of the constant ball 37, for example. In each of the ball storage holes 41 to 46, the hole depth is formed deeper than the diameter of the constrained ball 37.

The ball storage holes 41 to 43 are arranged corresponding to the plug holes 26 of the respective const columns 12 to 14. The ball storage holes 41 to 43 are arranged at an angle θ (where θ <90 degrees) with respect to the plug holes 26 of the respective const columns 12 to 14 in the circumferential direction of the cylinder plug 52. Each of the ball storage holes 41 to 43 is arranged side by side with a hole pitch T in the center line direction CL.
Thereby, the ball storage hole 41 is disposed on the same circumferential line as the plug hole 26 of the const column 12, and the ball storage hole 42 is disposed on the same circumferential line as the plug hole 26 of the const column 13. The ball storage hole 43 is arranged on the same circumferential line as the plug hole 26 of the const column 14.

The ball storage holes 44 to 46 are arranged corresponding to the plug holes 26 of the respective const columns 19 to 21. The ball storage holes 44 to 46 are arranged at an angle θ (where θ <90 degrees) with respect to the plug holes 26 of the respective const columns 19 to 21 in the circumferential direction of the cylinder plug 52. The ball storage holes 44 to 46 are arranged at an angle of 180 degrees with respect to the ball storage holes 41 to 43 in the circumferential direction of the cylinder plug 52.
The ball storage holes 44 to 46 are arranged side by side with a hole pitch T in the center line direction CL.
Accordingly, the ball storage hole 44 is disposed on the same circumferential line as the plug hole 26 of the const column 19, and the ball storage hole 45 is disposed on the same circumferential line as the plug hole 26 of the const column 20. The ball storage hole 46 is arranged on the same circumferential line as the plug hole 26 of the const column 21.

As shown in FIG. 6, the master device Z1 is disposed on the key insertion port 54 side of the cylinder lock S1, and is provided in the cylinder lock S1 (cylinder cylinder 51 and cylinder plug 52).
The master device Z1 enables rotation of the cylinder plug 52 by the construction master key MK1 and the change key CK1 corresponding to the cylinder lock S1, and prohibits rotation of the cylinder plug 52 by the change key CK2 other than that corresponding to the cylinder lock S1. .
As shown in FIGS. 6, 7, and 11 to 13, the master device Z1 includes a plurality of master columns, for example, six master columns 9 to 11, 16 to 18, a third pin group P3, and a plurality of third columns. A pin group P3, a plurality of fourth pin groups P4, and a fifth pin group P5 are provided.

Each master column 9～11,16～18, as shown in FIGS. 6 and 7, is arranged in the key insertion opening 54 side (between the key insertion hole 54 and the constructive Rakushon device Y1). Each of the master columns 9 to 11 and 16 to 18 is formed in the cylinder body 51 and the cylinder plug 52 .

Each of the master columns 9 to 11 is arranged in the circumferential direction of the cylinder body 51 at an angle of 90 degrees with respect to the key width center line HT of the key hole 55. Each master Koramu 9-11 in the center line direction CL, are arranged in succession in const column 12.
The master columns 9 to 11 are arranged side by side with a hole pitch T in the center line direction CL.
In addition, the master column 11 is arranged in parallel to the constant column 12 with a hole pitch T in the center line direction CL.

As shown in FIG. 6, the master columns 16 to 18 are arranged at an angle of 180 degrees with respect to the master columns 9 to 11 in the circumferential direction of the cylinder body 51. Each of the master columns 16 to 18 is continuously arranged on the const column 19 in the center line direction CL.
The master columns 16 to 18 are arranged side by side with a hole pitch T in the center line direction CL. The master column 18 is juxtaposed with the const column 19 with a hole pitch T in the center line direction CL.
Each of the master columns 16 to 18 is arranged with a 1/2 hole pitch (1/2 × T) shifted from the master columns 9 to 11 in the center line direction CL.
Accordingly, the master column 18 is disposed between the master columns 10 and 11, and the master column 17 is disposed between the master columns 9 and 10. The master column 16 is disposed closer to the key insertion slot 54 than the master column 9.
The master column 11 is disposed between the const column 19 and the master column 18 in the center line direction CL, and the const column 19 is disposed between the const column 12 and the master column 11 in the center line direction CL.

Each of the master columns 9 to 11 and 16 to 18 includes a body hole 25 and a plug hole 26.
The cylinder holes 25 of the master columns 9 to 11 and 16 to 18 have the same structure as the cylinder holes 25 of the respective const columns 12 to 14 and 19 to 21, and are continuously connected to the plug holes 26 in the radial direction. 51 is penetrated.
As shown in FIGS. 6 and 7, the cylinder holes 25 of the respective master columns 9 to 11 are closed at the outer periphery 51 a of the cylinder cylinder 51 by a spring stop plate 56. The cylinder holes 25 of the master columns 16 to 18 are closed by the spring stop plate 57 at the opening of the outer periphery 51 a of the cylinder cylinder 51.

The plug holes 26 of the master columns 9 to 11 and 16 to 18 have the same structure as the plug holes 26 of the respective const columns 12 to 14 and 19 to 21, as shown in FIGS. , through the cylinder plug 52 is continuously cylinder pits 25, further opens the cylinder pits 25 and keyway 55.

  The third pin group P3 includes a third lower pin 61 (upper pin), a third upper pin 62 (lower pin), and a third pin spring 63, as shown in FIGS.

As shown in FIG. 11, the third lower pin 61 has a pin front end surface 61A and a pin rear end surface 61B, and the pin front end surface 61A side has a stepped portion 61C and is reduced in diameter.
The third lower pin 61 is slidably disposed in the plug hole 26 in the radial direction by inserting the pin tip surface 61A side into the plug hole 26 from the outer periphery 52a of the cylinder plug 52.
The third lower pin 61 is disposed in the plug hole 26 with the stepped portion 61 </ b> C contacting the stepped portion 26 </ b> A of the plug hole 26. As a result, the third lower pin 61 is held by the cylinder plug 52 in the plug hole 26 and does not fall into the key hole 55.
In the third lower pin 61, the pin tip surface 61 </ b> A side protrudes into the key hole 55 through the plug hole 26. The front end surface 61A of the third lower pin 61 is positioned to protrude from the center line CT by a distance τ in the radial direction.

As shown in FIG. 11, the third upper pin 62 has a pin front end surface 62A and a pin rear end surface 62B. Third upper pin 62 has a spring storage recess 62 C in the pin rear surface 62B side, the spring receiving recess 62C is opened to the pin rear end surface 62B.
In the third upper pin 62, the pin tip surface 62A side has a conical surface that gradually decreases in diameter toward the pin tip surface 62A.
The third upper pin 62 is slidably disposed in the body hole 25 in the radial direction by inserting the pin tip surface 62A side (conical surface) from the outer periphery 52a of the cylinder plug 52 into the body hole 25.
In the third upper pin 62, the pin tip surface 62 </ b> A side (conical surface) protrudes into the plug hole 26 through the body hole 25. The pin front end surface 62A of the third upper pin 62 is brought into contact with the pin rear end surface 61B of the third lower pin 61 in the plug hole 26.
In the third lower pin 61 and the third upper pin 62, the portions that are in contact with each other serve as a boundary between the third lower pin 61 and the third upper pin 62 .

As shown in FIG. 11, the third pin spring 63 is disposed in the body hole 25 and is inserted into the spring housing recess 62C. The third pin spring 63 is disposed between the spring housing recess 62 </ b> C and the spring stop plate 56 (or the spring stop plate 57) in the body hole 25. The third pin spring 63 is compressed and brought into contact with the bottom surface of the spring housing recess 62C and the spring stop plate 56 (or the spring stop plate 57).
Thereby, the third pin spring 63 biases the third upper pin 62 to the third lower pin 61 by a spring force (biasing force) in the radial direction. The third upper pin 62 is biased to the third lower pin 61 by the spring force (biasing force) of the third pin spring 63.

  Each third pin group P3 is housed in each master column 9, 17, 18 as shown in FIG.

  6 and 12, the fourth pin group P4 includes a fourth lower pin 64 (lower pin), a fourth upper pin 65 (lower pin), an MK pin 66 (intermediate pin), and a fourth pin spring 67. Have

The fourth lower pin 64, as shown in FIG. 12, has a pin tip surface 64A and the pin rear end face 64B, the pin tip surface 64 A side is reduced in diameter with a stepped portion 64C. The fourth lower pin 64 is formed shorter than the third lower pin 61.
The fourth lower pin 64 is slidably disposed in the plug hole 26 in the radial direction by inserting the pin tip surface 64A side into the plug hole 26 from the outer periphery 52a of the cylinder plug 52.
The fourth lower pin 64 is disposed in the plug hole 26 with the stepped portion 64 </ b> C contacting the stepped portion 26 </ b> A of the plug hole 26. As a result, the fourth lower pin 64 is held by the cylinder plug 52 in the plug hole 26 and does not fall into the key hole 55.
In the fourth lower pin 64, the pin tip surface 64 A side protrudes into the key hole 55 through the plug hole 26. The pin front end surface 64A of the fourth lower pin 64 is positioned to protrude from the center line CT by a distance τ in the radial direction.

As shown in FIG. 12, the fourth upper pin 65 has a pin front end surface 65A and a pin rear end surface 65B. The fourth upper pin 65 has a spring accommodating recess 65C, and the spring accommodating recess 65C is formed on the pin rear end face 65B side of the fourth upper pin 65. The spring accommodating recess 65 </ b> C opens in the pin rear end surface 65 </ b> B of the fourth upper pin 65.
The fourth upper pin 65 is slidably disposed in the body hole 25 in the radial direction by inserting the pin tip surface 65 </ b> A side into the body hole 25 from the outer periphery 51 a of the cylinder body 51.
In the fourth upper pin 65, the pin front end surface 65 </ b> A side protrudes into the plug hole 26 through the body hole 25.

As shown in FIG. 12, the MK pin 66 has a pin front end surface 66A and a pin rear end surface 66B. The MK pin 66 is disposed in the plug hole 26. The MK pin 66 is assembled between the fourth lower pin 64 and the fourth upper pin 65.
MK pin 66, the pin tip surface 66A in contact with the pin rear surface 64 B of the fourth lower pin 64, and the pin rear surface 66B in contact with the pin tip surface 65A of the fourth upper pin 65, in the radial direction, The plug hole 26 is slidably disposed.
The portions of the fourth lower pin 64 and the MK pin 66 that are in contact with each other serve as a boundary between the fourth lower pin 64 and the MK pin 66.

As shown in FIG. 12, the fourth pin spring 67 is disposed in the body hole 25 and is inserted into the spring accommodating recess 65C. The fourth pin spring 67 is disposed between the spring housing space 65 </ b> C and the spring stop plate 56 (or the spring stop plate 57) in the body hole 25. The fourth pin spring 67 is compressed and brought into contact with the bottom surface of the spring housing recess 65C and the spring stop plate 56 (or the spring stop plate 57).
Accordingly, the fourth pin spring 67 biases the fourth upper pin 65 and the MK pin 66 to the fourth lower pin 64 by a spring force (biasing force) in the radial direction. The fourth upper pin 65 is biased to the fourth lower pin 64 by the spring force (biasing force) of the fourth pin spring 67.

  Each fourth pin group P4 is housed in each master column 10, 16 as shown in FIG.

  The fifth pin group P5 includes a fifth lower pin 68 (lower pin), a fifth upper pin 69 (upper pin), and a fifth pin spring 70, as shown in FIGS.

As shown in FIG. 13, the fifth lower pin 68 has a pin front end surface 68A and a pin rear end surface 68B, and the pin front end surface 68A side has a stepped portion 68C and is reduced in diameter. The fifth lower pin 68 is formed shorter than the third and fourth lower pins 61 and 64.
The fifth lower pin 68 is slidably disposed in the plug hole 26 in the radial direction by inserting the pin tip surface 68A side into the plug hole 26 from the outer periphery 52a of the cylinder plug 52.
The fifth lower pin 68 is disposed in the plug hole 26 with the stepped portion 68 </ b> C contacting the stepped portion 26 </ b> A of the plug hole 26. As a result, the fifth lower pin 68 is held by the cylinder plug 52 in the plug hole 26 and does not fall into the key hole 55.
In the fifth lower pin 68, the pin tip surface 68 </ b> A side protrudes into the key hole 55 through the plug hole 26. The pin front end surface 68A of the fifth lower pin 68 is disposed so as to protrude from the center line CT by a distance τ in the radial direction.

As shown in FIG. 13, the fifth upper pin 69 has a pin front end surface 69A and a pin rear end surface 69B. The fifth upper pin 69 has a spring housing recess 69C on the pin rear end surface 69 side, and the spring housing recess 69C opens to the pin rear end surface 69B.
In the fifth upper pin 69, the pin tip surface 69A side has a conical surface that gradually decreases in diameter toward the pin tip surface 69A.
The fifth upper pin 69 is slidably disposed in the body hole 25 in the radial direction by inserting the pin tip surface 69A side (conical surface) from the outer periphery 51a of the cylinder body 51 into the body hole 25.
In the fifth upper pin 69, the pin tip end surface 69 A side (conical surface) protrudes into the plug hole 26 through the body hole 25. The pin front end surface 69A of the fifth upper pin 69 is in contact with the pin rear end surface 68B of the fifth lower pin 68 in the plug hole 26.
The portions of the fifth lower pin 68 and the fifth upper pin 69 that abut on each other serve as a boundary between the fifth lower pin 68 and the fifth upper pin 69.

As shown in FIG. 13, the fifth pin spring 70 is disposed in the body hole 25 and is inserted into the spring accommodating recess 69C. The fifth pin spring 70 is disposed between the spring housing recess 69 </ b> C and the spring stop plate 56 in the body hole 25. The fifth pin spring 70 is compressed and brought into contact with the bottom surface of the spring housing recess 69 </ b> C and the spring stop plate 56.
Accordingly, the fifth pin spring 70 biases the fifth upper pin 69 against the fifth lower pin 68 by a spring force (biasing force) in the radial direction. The fifth upper pin 69 is biased to the fifth lower pin 68 by the spring force (biasing force) of the fifth pin spring 70.

  The fifth pin group P5 is housed in the master column 11 as shown in FIGS.

  As shown in FIGS. 3 to 5 and 8, the cylinder lock S1 includes a plurality of fixed columns, for example, seven fixed columns 1 to 7, a plurality of sixth pin groups P6, a plurality of seventh pin groups P7, and A plurality of eighth pin groups P8 are provided.

Each of the fixed columns 1 to 7 is formed in a cylinder body 51 and a cylinder plug 52 as shown in FIGS.
As shown in FIG. 7, each of the fixed columns 1 to 7 has an angle of 180 degrees with respect to the keyhole width center HT of the keyhole 55 in the circumferential direction of the cylinder body 51 (with respect to each of the constant columns 12 to 14 and 19 to 21). And an angle of 90 degrees).
The fixed columns 1 to 7 are arranged side by side with a hole pitch T in the center line direction CL.
Each of the fixed columns 1 to 7 includes a body hole 25 and a plug hole 26. As shown in FIG. 8, the body holes 25 of the fixed columns 1 to 7 have the same structure as the respective const columns 12 to 14 and 19 to 21, and penetrate the cylinder body 51 in the radial direction.
In each of the fixed columns 1 to 7, the cylinder hole 25 closes the opening of the outer periphery 51 a of the cylinder cylinder 51 with a spring stop plate 58. The spring stop plate 58 is fixed to the cylinder body 51.

  As shown in FIGS. 3 to 5 and 8, the plug holes 26 of the fixing columns 1 to 7 have the same structure as the respective const columns 12 to 14 and 19 to 21, and are formed in the body holes 25 in the radial direction. It continues and penetrates the cylinder plug 52, and further opens into the body hole 25 and the key hole 55.

As shown in FIG. 8, the sixth pin group P <b> 6 includes a sixth lower pin 71 (lower pin), a sixth upper pin 72 (upper pin), and a sixth pin spring 73.
The sixth lower pin 71 is inserted into the plug hole 26 and is slidably disposed in the plug hole 26 in the radial direction. The sixth lower pin 71 is held by the cylinder plug 52 in the plug hole 26 and protrudes into the key hole 55. The sixth upper pin 72 is inserted into the body hole 25 and is slidably disposed in the body hole 25 in the radial direction. The sixth pin spring 73 is inserted into the body hole 25 and is disposed between the sixth upper pin 71 and the spring stop plate 58. The sixth pin spring 73 biases the sixth upper pin 72 to the sixth lower pin 71 by a spring force (biasing force).
Each sixth pin group P6 is housed in each fixed column 1, 6 as shown in FIG.

As shown in FIG. 8, the seventh pin group P <b> 7 includes a seventh lower pin 74 (lower pin), a seventh upper pin 75 (upper pin), and a seventh pin spring 76.
The seventh lower pin 74 is formed shorter than the sixth lower pin 71. The seventh lower pin 74 is inserted into the plug hole 26 and is slidably disposed in the plug hole 26 in the radial direction. The seventh lower pin 74 is held by the cylinder plug 52 in the plug hole 26 and protrudes into the key hole 55. The seventh upper pin 75 is inserted over the body hole 25 and the plug hole 26 and is slidably disposed in the body hole 25 and the plug hole 26 in the radial direction. The seventh pin spring 76 is inserted into the body hole 25 and is disposed between the seventh upper pin 75 and the spring stop plate 58. The seventh pin spring 76 biases the seventh upper pin 75 to the seventh lower pin 74 by a spring force (biasing force).
Each seventh pin group P7 is housed in each fixed column 2, 3, 5 as shown in FIG.

As shown in FIG. 8, the eighth pin group P <b> 8 includes an eighth lower pin 77 (lower pin), an eighth upper pin 78 (upper pin), and an eighth pin spring 79.
The eighth lower pin 77 is formed shorter than the sixth and seventh lower pins 71 and 74. The eighth lower pin 77 is inserted into the plug hole 26 and is slidably disposed in the plug hole 26 in the radial direction. The eighth lower pin 77 is held by the cylinder plug 52 in the plug hole 26 and protrudes into the key hole 55. The eighth upper pin 78 is inserted over the body hole 25 and the plug hole 26 and is slidably disposed in the body hole 25 and the plug hole 26 in the radial direction. The eighth spring pin 79 is inserted into the body hole 25 and is disposed between the eighth upper pin 78 and the spring stop plate 58. The eighth pin spring 79 biases the eighth pin 78 to the eighth lower pin 77 by a spring force (biasing force).
Each eighth pin group P8 is housed in each fixed column 4 and 7, as shown in FIG.

<Cylinder lock S2>
14 and 15, the cylinder lock S2 (second cylinder lock) includes a cylinder body 51, a cylinder plug 52, a construction device Y2, and a master device Z2.

  In the cylinder lock S2, the cylinder body 51 and the cylinder plug 52 have the same configuration as the cylinder lock S1, and have a key insertion port 54 and a key hole 55 in the cylinder plug 52.

The construction device Y2 is provided in the cylinder lock S2 (cylinder body 51 and cylinder plug 52) by disposing the master device Z2 between the key insertion port 54 of the cylinder lock S2.
As shown in FIGS. 14 and 15, the construction device Y <b> 2 includes three or more plurality of construction columns, for example, six construction columns 12 to 14 and 19 to 21, a plurality of first pin groups P <b> 1, and a plurality of second columns. A pin group P2 and a plurality of ball storage holes 41 to 46 are provided.

  As shown in FIGS. 14 and 15, each of the construction columns 12 to 14 and 19 to 21 of the construction device Y2 has the same configuration as the cylinder lock S1 and includes a body hole 25 and a plug hole 26 (FIG. 3). And FIG. 4).

The first pin group P1 of the construction device Y2 has the same members and the same configuration as the cylinder lock S1 (construction device Y1), and includes a first lower pin 31 (lower pin), a first upper pin 32 (upper pin), And a first pin spring 33 (see FIG. 9).
In the construction device Y2, each first pin group P1 is housed in each of the construction columns 12, 14, 20 as shown in FIGS.
As a result, in the cylinder lock S2, the first pin group P1 is housed in the plurality of constant columns 12, 14, 20 instead of all the constant columns 12-14, 19-21.

The second pin group P2 of the construction device Y2 has the same members and the same configuration as the cylinder lock S1 (construction device Y1), and includes a second lower pin 35 (lower pin), a second upper pin 32 (upper pin), It has the ball | bowl 37 and the 2nd pin spring 38 (refer FIG. 10).
In the construction device Y2, the second pin group P2 is accommodated in each of the construction columns 13, 19, and 21, for example, as shown in FIGS.
Thus, in the cylinder lock S2, the second pin group P2 is stored in the remaining cost columns 13, 19, and 21 other than the cost columns 12, 14, and 20 in which the first pin group P1 is stored.

  The ball storage holes 41 to 46 of the construction device Y2 have the same configuration as the cylinder lock S1 (construction device Y1), and are formed in the cylinder plug 52 corresponding to the construction columns 12 to 14 and 19 to 21 ( 3 and 4).

As shown in FIG. 14, the master device Z2 is arranged on the key insertion port 54 side of the cylinder lock S2, and is provided in the cylinder lock S2 (cylinder cylinder 51 and cylinder plug 52).
The master device Z2 enables rotation of the cylinder plug 52 by the construction master key MK1 and the change key CK2 with respect to the cylinder lock S2, and prohibits rotation of the cylinder plug 52 by the change key CK1 other than that corresponding to the cylinder lock S2.
14 and 15, the master device Z2 includes a plurality of master columns, for example, six master columns 9 to 11 , 16 to 18 , a third pin group P3, a plurality of fourth pin groups P4, and a plurality of master columns. The fifth pin group P5.

In the master device Z2 , each of the master columns 9 to 11 and 16 to 18 has the same configuration as the cylinder lock S1 (master device Z1 ), and includes a body hole 25 and a plug hole 26 (see FIGS. 3 and 4). ).

In the master device Z2 (cylinder lock S2), the third pin group P3 has the same members and the same configuration as the cylinder lock S1 (master device Z1 ), and includes a third lower pin 61, a third upper pin 62, and a third pin. A pin spring 63 is provided (see FIG. 11).
In the master device Z2 , the third pin group P3 is housed in the master column 10 as shown in FIG.

In the master device Z2 , the fourth pin group P4 has the same members and the same configuration as the cylinder lock S1 (master device Z1 ), and includes a fourth lower pin 64, a fourth upper pin 65, an MK pin 66 (intermediate pin), And a fourth pin spring 67 (see FIG. 12).
In the master device Z2 (cylinder lock S2), each fourth pin group P4 is accommodated in each master column 11, 16, 17 as shown in FIG.

In the master device Z2 , the fifth pin group P5 has the same members and the same configuration as the cylinder lock S1 (master device Z1 ), and includes a fifth lower pin 68, a fifth upper pin 69, and a fifth pin spring 70 ( (See FIG. 13).
In the master device Z2 (cylinder lock S2), each fifth pin group P5 is housed in each master column 9, 18 as shown in FIG.

As shown in FIG. 8, the cylinder lock S2 includes a plurality of fixed columns 1 to 7, a sixth pin group P6, a plurality of seventh pin groups P7, and a plurality of eighth pin groups P8.
In the cylinder lock S <b> 2, each of the fixed columns 1 to 7 has the same configuration as the cylinder lock S <b> 1, and includes a body hole 25 and a plug hole 26.
In the cylinder lock S2, the sixth pin group P6 is housed in each of the fixed columns 1 and 6, and the seventh pin group P7 is housed in each of the fixed columns 2, 3, and 5. In the cylinder lock S2, each eighth pin group P8 is housed in each fixed column 4,7.

<Construction Master Key MK1>
The construction master key MK1 is inserted into the key hole 55 of each cylinder lock S1, S2 from the key insertion port 54 during the construction period, and operates (locks or unlocks) each cylinder lock S1, S2. The construction master key MK1 is a reversible key.

As shown in FIG. 16, the construction master key MK1 has a first keyhole groove row mr1 and a second keyhole groove row mr2, and each of the keyhole groove rows mr1 and mr2 has a key surface plane Ma and a key. It is formed on the back plane Mb.
The first and second keyhole groove rows mr1 and mr2 are arranged in parallel in the key width direction on the key front and back planes Ma and Mb.
In the key back plane Mb of the construction master key MK1, the first keyhole groove row mr1 is formed to face the second keyhole groove row mr2 of the key front surface Ma.
On the key back plane Mb of the construction master key MK1, the second keyhole groove row mr2 is formed to face the first keyhole groove row mr1 on the key front plane Mb.

The first key Anamizo column mr1, in the key longitudinal direction KN, with a long groove SK1, a plurality of dimples holes M9, M10,及Beauty non dimples M11.

The long groove SK1 is formed in each cylinder lock S1, S2 corresponding to the first and second pin groups P1, P2 of the respective const columns 12-14.
The long groove SK1 is formed on the key front end side in the key longitudinal direction NK. The long groove SK1 extends from the front end of the key in the key longitudinal direction NK, and is opened to the key front surface Ma or the key back surface Mb. The long groove SK1 has the same groove depth in the key longitudinal direction NK and has, for example, a groove depth δ3.

The non-dimple portion M11 is formed corresponding to the fifth and fourth pin groups P5 and P4 of the master column 11 in each of the cylinder locks S1 and S2. The non-dimple portion M11 is arranged in parallel with the long groove SK1 in the key longitudinal direction NK. The non-dimple portion M11 has, for example, a hole depth δ1 and is formed by the key front surface Ma or the key back surface Mb.

  The dimple hole M10 is formed corresponding to the third and fourth pin groups P3, P4 of each master column 10 in each cylinder lock S1, S2. The dimple hole M10 is arranged in parallel with the non-dimple portion M11 in the key longitudinal direction NK. The dimple hole M10 has, for example, a hole depth δ3 and is opened in the key front surface Ma or the key back surface Mb.

The dimple hole M9 is formed corresponding to the third and fifth pin groups P3 and P5 of the master column 9 in each of the cylinder locks SK1 and S2. The dimple hole M9 is arranged in parallel with the dimple hole M10 in the key longitudinal direction NK. The dimple hole M9 has, for example, a hole depth δ2, and is opened to the key front surface Ma or the key back surface Mb.
The hole depth δ1 is the hole depth “zero (δ1 = 0)”. The relationship between the groove depth δ3 and the hole depths δ1 and δ2 is δ3>δ2> δ1, and the hole depth δ2 is shallower than the groove depth δ3 (the same applies hereinafter).

The second keyhole groove row mr2 includes a long groove SK 2 , a plurality of dimple holes M18 and M17, and a non-dimple portion M16 in the key longitudinal direction NK.

The long groove SK2 is formed corresponding to the first and second pin groups P1 and P2 of the respective const columns 19 to 21 in the cylinder locks SK1 and S2.
The long groove SK2 is formed on the tip side in the key longitudinal direction NK. The long groove SK2 extends from the front end of the key in the key longitudinal direction NK, and opens in the key front surface Ma or the key back surface Mb.
The long groove SK2 has the same groove depth in the key longitudinal direction NK, for example, the same groove depth as the long groove SK1, and has a groove depth δ3.

  The dimple hole M18 is formed corresponding to the third and fifth pin groups P3 and P5 of the master column 18 in each of the binder locks S1 and S2. The dimple hole M18 is arranged in parallel with the long groove S2 in the key longitudinal direction NK. The dimple hole M18 has, for example, a hole depth δ2 and is opened in the key front surface Ma or the key back surface Mb.

  The dimple hole M17 is formed corresponding to the third and fourth pin groups P3 and P4 of the master column 17 in each of the cylinder locks S1 and S2. The dimple hole M17 is arranged in parallel with the dimple hole 18 in the key longitudinal direction NK. The dimple hole M17 has, for example, a hole depth δ3 and is opened to the key front surface Ma or the key back surface Mb.

  The non-dimple hole portion M16 is formed corresponding to the fourth pin group P4 of the master column 16 in each cylinder lock S1, S2. The non-dimple portion M16 is arranged in parallel with the dimple hole M17 in the key longitudinal direction NK. The non-dimple portion M16 has, for example, a hole depth δ1 and is formed by the key front surface Ma or the key back surface Mb.

The construction master key MK1 has a plurality of dimple holes M1 to M3, M5, and M6 and non-dimple portions M4 and M7.
The dimple holes M1 to M3, M5, and M6 and the non-dimple portions M4 and M7 are formed on the side surfaces of the keys.
The dimple holes M1 to M3, M5, and M6 are formed corresponding to the sixth and seventh pin groups P6 and P7 of the fixed columns 1 to 3 in the cylinder locks S1 and S2, respectively. Each dimple hole M1, M6 has, for example, a hole depth δ3 and is opened on each key side surface. Each of the dimple holes M2 and M5 has, for example, a hole depth δ2 and is opened on each key side surface.
Each non-dimple portion M4, M7 is formed corresponding to the eighth pin group P8 of each fixed column 4, 7 in each cylinder lock S1, S2. Each non-dimple portion M4, M7 has a hole depth δ1, for example.

<Change key CK1>
The change key CK1 (first change key) is provided corresponding to the cylinder lock S1. The change key CK1 is inserted into the key hole 55 of the corresponding cylinder lock S1 from the key insertion port 54 after the construction is completed, and operates (locks or unlocks) the cylinder lock S1. The change key CK1 is a reversible key.
As shown in FIG. 17, the change key CK1 has a first keyhole row cr1 and a second keyhole row cr2, and the first and second keyhole rows cr1 and cr2 have a key front surface Ca and a key back surface. It is formed on the plane Cb.
The first and second keyhole rows cr1 and cr2 are arranged in parallel in the key width direction NH on the key front and back planes Ca and Cb.
In the key back plane Cb of the change key CK1, the first key hole row cr2 is formed to face the second key hole row cr1 of the key front plane Ca.
On the key back plane Cb of the change key CK1, the second keyhole row cr1 is formed to face the first keyhole row cr1 on the key front plane Ca.

  The first keyhole row cr1 has a plurality of non-dimple portions C14, C12, C10 and a plurality of dimple holes C13, C11, C9.

  The non-dimple portion C14 is formed corresponding to the second pin group P2 of the constant column 14 in the cylinder lock S1. The non-dimple portion C14 is formed on the key front end side in the key longitudinal direction NK. The non-dimple portion C14 has, for example, a hole depth δ1 and is formed by the key front plane Ca or the key back plane Cb.

  The non-dimple portion C12 is formed corresponding to the second pin group P2 of the const column 12 in the cylinder lock S1. The non-dimple portion C12 is juxtaposed with the non-dimple portion C14 in the key longitudinal direction NK. The non-dimple portion C12 has, for example, a hole depth δ1 and is formed by the key front surface Ca or the key back surface Cb.

  The non-dimple portion C10 is formed corresponding to the fourth pin group P4 of the master column 10 in the cylinder lock S1. The non-dimple portion C10 is juxtaposed with the non-dimple portion C12 in the key longitudinal direction NK. The non-dimple portion C10 has, for example, a hole depth δ1 and is formed by the key front plane Ca or the key back plane Cb.

The dimple hole C13 (first dimple hole) is formed corresponding to the first pin group P1 of the const column 13 in the cylinder lock S1. Dimple holes C13, in the key longitudinal direction NK, is disposed between each non-dimple C14, C12, are juxtaposed to each non-dimple C14, C12. The dimple hole C13 has, for example, a hole depth δ3 and opens in the key front surface Ca or the key back surface Cb.

  The dimple hole C11 is formed corresponding to the fifth pin group P5 of the master column 11 in the cylinder lock S1. The dimple hole C11 is disposed between the non-dimple portions C12 and C10 in the key longitudinal direction NK, and is arranged in parallel with the non-dimple portions C12 and C10. The dimple hole C11 has, for example, the same hole depth δ2 as the long grooves SK1 and SK1 of the construction master key MK1, and is opened in the key front surface Ca or the key back surface Cb.

  The dimple hole C9 is formed corresponding to the third pin group P3 of the master column 9 in the cylinder lock S1. The dimple hole C9 is provided in parallel with the non-dimple portion C10 in the key longitudinal direction NK. The dimple hole C9 has, for example, a hole depth δ3 and is opened in the key front plane Ca or the key back plane Cb.

  The second keyhole row cr2 has a plurality of dimple holes C21, C19, C18, C17, C16, and a non-dimple portion C20.

  The dimple hole C21 (first dimple hole) is formed corresponding to the first pin group P1 of the const column 21 in the cylinder lock S1. The dimple hole C21 is formed on the key front end side in the key longitudinal direction NK. The dimple hole C21 has, for example, a hole depth δ3 and opens in the key front surface Ca or the key back surface Cb.

The dimple hole C19 (first dimple hole) is formed corresponding to the first pin group P1 of the const column 20 in the cylinder lock S1. The dimple hole C19 is juxtaposed with the dimple hole C21 in the key longitudinal direction NK. The dimple hole C19 has, for example, a hole depth δ3 and opens in the key front surface Ca or the key back surface Cb.

  The dimple hole C18 is formed corresponding to the third pin group P3 of the master column 18 in the cylinder lock S1. The dimple hole C18 is arranged in parallel with the dimple hole C19 in the key longitudinal direction NK. The dimple hole C18 has, for example, a hole depth δ3 and is opened in the key front plane Ca or the key back plane Cb.

  The dimple hole C17 is formed corresponding to the third pin group P3 of the master column 17 in the cylinder lock S1. The dimple hole C17 is arranged in parallel with the dimple hole C18 in the key longitudinal direction NK. The dimple hole C17 has, for example, a hole depth δ2 and opens in the key front surface Ca or the key back surface Cb.

The dimple hole C16 is formed corresponding to the fourth pin group P4 of the master column 16 in the cylinder lock S1. The dimple hole C16 is arranged in parallel with the dimple hole C17 in the key longitudinal direction NK. The dimple hole C16 has, for example, a hole depth δ3 and is opened in the key front plane Ca or the key back plane Cb.

  The non-dimple portion C20 is formed corresponding to the second pin group P2 of the constant column 20 in the cylinder lock S1. The non-dimple portion C20 is disposed between the dimple holes C21 and C19 in the key longitudinal direction NK, and is arranged in parallel with the dimple holes C21 and C19. The non-dimple portion C20 has, for example, a hole depth δ1 and is formed by the key front surface Ca or the key back surface Cb.

The change key CK1 has a plurality of non-dimple portions C7, C4 and a plurality of dimple holes C6, C5, C3, C2, C1.
The non-dimple portions C7 and C4 have the same configuration as the non-dimple portions M7 and M4 of the construction master key MK1, and are formed on the side surfaces of the keys.
The dimple holes C6, C5, C3, C2, and C1 have the same configuration as the dimple holes M6, M5, M3, M2, and M1 of the construction master key MK1, and are formed on the side surfaces of the keys.

<Change key CK2>
The change key CK2 (second change key) is provided corresponding to the cylinder lock S2. The change key CK2 is inserted into the key hole 55 of the corresponding cylinder lock S2 from the key insertion port 54 after the construction is completed, and operates (locks or unlocks) the cylinder lock S2. The change key CK2 is a reversible key.
As shown in FIG. 18, the change key CK2 has a first keyhole row dr1 and a second keyhole row dr2, and the first and second keyhole rows dr1 and dr2 are formed of the key front surface Da and the key back surface. It is formed on the plane Db.
The first and second keyhole rows dr1, dr2 are juxtaposed in the key width direction KH on the key front and back planes Da, Db.
In the key back plane Db of the change key CK2, the first key hole row dr1 is formed to face the second key hole row dr2 of the key front plane Da.
On the key back plane Db of the change key CK2, the second keyhole group dr2 is formed to face the first keyhole row dr1 on the key front plane Da.

  The first keyhole group dr1 has a plurality of dimple holes D14, D12, D11, D10 and a plurality of non-dimple portions D13, D9.

  The dimple D14 (first dimple hole) is formed corresponding to the first pin group P1 of the const column 14 in the cylinder lock S2. The dimple hole D14 is formed on the key front end side in the key longitudinal direction NK. The dimple hole D14 has, for example, a hole depth δ3 and is opened in the key front surface Da or the key back surface Db.

  The dimple hole D12 (first dimple hole) is formed corresponding to the first pin group P1 of the const column 12 in the cylinder lock S2. The dimple hole D12 is arranged in parallel with the dimple hole D14 in the key longitudinal direction NK. The dimple hole D12 has, for example, a hole depth δ3 and is opened in the key front surface or the key back surface.

  The dimple hole D11 is formed corresponding to the fourth pin group P4 of the master column 11 in the cylinder lock S2. The dimple hole D11 is arranged in parallel with the dimple hole D12 in the key longitudinal direction NK. The dimple hole D11 has, for example, a hole depth δ3 and is opened in the key front surface Da or the key back surface Db.

  The dimple hole D10 is formed corresponding to the third pin group P3 of the master column 10 in the cylinder lock S2. The dimple hole D10 is arranged in parallel with the dimple hole D11 in the key longitudinal direction NK. The dimple hole D10 has, for example, a hole depth δ3 and is opened in the key front surface Da or the key back surface Db.

The non-dimple portion D13 is formed corresponding to the second pin group P2 of the constant column 13 in the cylinder lock S2. The non-dimple portion D13 is disposed between the dimple holes D14 and D12 in the key longitudinal direction NK, and is arranged in parallel with the dimple holes D14 and D12. The non-dimple portion D13 has, for example, a hole depth δ1 and is formed by the key front surface Da or the key back surface Db.

  The non-dimple portion D9 is formed corresponding to the fifth pin group P5 of the master column 9 in the cylinder lock S2. The non-dimple portion D9 is arranged in parallel with the dimple hole D10 in the key longitudinal direction NK. The non-dimple portion D9 has, for example, a hole depth δ1 and is formed by the key front surface Da or the key back surface Db.

  The second keyhole row dr2 has a plurality of non-dimple portions D21, D19, D18, D17 and a plurality of dimple holes D20, D16.

  The non-dimple portion D21 is formed corresponding to the second pin group P2 of the constant column 21 in the cylinder lock S2. The non-dimple portion D21 is formed on the key front end side in the key longitudinal direction NK. The non-dimple portion D21 has, for example, a hole depth δ1 and is formed by the key front surface Da or the key back surface Db.

  The non-dimple portion D19 is formed corresponding to the second pin group P2 of the const column 19 in the cylinder lock S2. The non-dimple portion D19 is arranged in parallel with the non-dimple portion D21 in the key longitudinal direction NK. The non-dimple portion D19 has, for example, a hole depth δ1 and is formed by the key front surface Da or the key back surface Db.

  The non-dimple portion D18 is formed corresponding to the fifth pin group P5 of the master column 18 in the cylinder lock S2. The non-dimple portion D18 is juxtaposed with the non-dimple portion D19 in the key longitudinal direction NK. The non-dimple portion D18 has, for example, a hole depth δ1 and is formed by the key front surface Da or the key back surface Db.

  The non-dimple portion D17 is formed corresponding to the fourth pin group P4 of the master column 17 in the cylinder lock S2. The non-dimple portion D17 is arranged in parallel with the non-dimple portion D18 in the key longitudinal direction NK. The non-dimple portion D17 has, for example, a hole depth δ1 and is formed by the key front surface Da or the key back surface Db.

  The dimple hole D20 (first dimple hole) is formed corresponding to the first pin group P1 of the constant column 20 in the cylinder lock S2. The dimple hole D20 is disposed between the non-dimple portions D21 and D19 in the key longitudinal direction NK, and is arranged in parallel with the non-dimple portions D21 and D19. The dimple hole D21 has, for example, a hole depth δ3 and is opened in the key front surface Da or the key back surface Db.

The dimple hole D16 is formed corresponding to the fourth pin group P4 of the master column 16 in the cylinder lock S2. The dimple hole D16 is arranged in parallel with the non-dimple portion D17 in the key longitudinal direction NK. The dimple hole D16 has, for example, a hole depth δ3 and is opened in the key front surface Da or the key back surface Db.

The change key CK2 has a plurality of non-dimple portions D7, D4 and a plurality of dimple holes D6, D5, D3, D2, D1.
Each non-dimple portion D7, D4 has the same structure as each non-dimple portion M7, M4 of the construction master key MK1, and is opened on the side surface of each key.
The dimple holes D6, D5, D3, D2, and D1 have the same configuration as the dimple holes M6, M5, M3, M2, and M1 of the construction master key MK1, and are opened on the side surfaces of the keys.

  The construction master device X1 operates (locks or unlocks) each cylinder lock S1, S2 with the construction master key MK1 during the construction period.

In order to operate the cylinder lock S1 during the construction period, as shown in FIGS. 19 to 21, the construction master key MK1 is inserted into the key hole 55 from the key insertion port 54 of the cylinder lock S1, and each long groove SK1, SK2 is inserted into each slot SK1, SK2. It arrange | positions corresponding to the 1st and 2nd pin groups P1 and P2 of the const columns 12-14 and 19-21.
In the construction master key MK1, the non-dimple portions M11, M16 are arranged corresponding to the fourth and fifth pin groups P4, P5 of the master columns 11, 16, respectively, and the dimple holes M9, M10, M17, M18 is arranged corresponding to the third and fourth pin groups P3 and P4 of each master column 9, 10, 17, 18.
Furthermore, the construction master key MK1 arranges the non-dimple portions M4 and M7 and the dimple holes M1 to M3, M5 and M6 corresponding to the sixth to eighth pin groups P6 to P8 of the fixed columns 1 to 7, respectively. .

As shown in FIG. 19 and FIG. 20, the cost traction master key MK1 is inserted into the first lower pin 31 ( The first pin group P 1) is pushed and moved against the first pin spring 33, and the boundary between the first lower pin 31 and the first upper pin 32 is positioned (arranged) between the cylinder body 51 and the cylinder plug 52.
As the construction master key MK1 is inserted into the key hole 55 of the cylinder lock S1, the second lower pin 35 (second pin group P2) of each of the construction columns 12, 14, 20 is moved to the second pin spring 38 by the long grooves SK1, SK2. The boundary between the constant ball 37 and the second upper pin 36 is positioned (arranged) between the cylinder body 51 and the cylinder plug 52 while the constant ball 37 is disposed in the plug hole 26 against the cylinder body 51.
In addition, between the cylinder body 51 and the cylinder plug 52 is between the inner periphery of the circular inner peripheral hole 53 of the cylinder body 51 and the outer periphery (gap) of the cylinder plug 52 (hereinafter the same).

Further, as shown in FIGS. 19 and 20, the construction master key MK1 is moved by the non-dimple portion M11 to the fifth lower pin 68 (fifth pin group P5) of the master column 11 as the key hole 55 of the cylinder lock S1 is inserted. ) Against the fifth pin spring 70 to position (arrange) the conical surface of the fifth upper pin 69 on the tip side of the pin between the cylinder body 51 and the cylinder plug 52.
Further, the construction master key MK1 pushes and moves the fourth lower pin 64 (fourth pin group P4) of the master column 16 against the fourth pin spring 67 by the non-dimple portion M16 with the insertion of the key hole 55, The boundary between the fourth lower pin 64 and the MK pin 66 is disposed (positioned) between the cylinder body 51 and the cylinder plug 52. At this time, the MK pin 66 is housed in the body hole 25 of the master column 16.
In addition, the construction master key MK1 causes the third lower pin 61 (third pin group P3) of each master column 9, 17, 18 to move to the third pin spring 63 by the dimple holes M9, M17, M18 as the key hole 55 is inserted. The conical surface on the pin tip surface side of the third upper pin 62 is positioned (arranged) between the cylinder body 51 and the cylinder plug 52 by pushing against the above.
With the insertion of the key hole 55, the construction master key MK1 pushes the fourth lower pin 64 (fourth pin group P4) of the master column 10 against the fourth pin spring 67 through the dimple hole M10, and moves the fourth upper The boundary between the pin 65 and the MK pin 66 is positioned (arranged) between the cylinder body 51 and the cylinder plug 52. At this time, the MK pin 66 is accommodated in the plug hole 26 of the master column 10.

As shown in FIG. 21, the construction master key MK1 is connected to each fixed column 1 through the non-dimple portions M4 and M7 and the dimple holes M1 to M3, M5 and M7 in accordance with the insertion of the keyhole 55 of the cylinder lock S1. 7, the sixth to eighth lower pins 71, 74, 77 are pushed and moved, and the boundaries of the sixth to eighth lower pins 71, 74, 77 and the sixth to eighth upper pins 72, 75, 78 are Position (arrangement) between 51 and the cylinder plug 52.
Thereby, in the cylinder lock S1, the construction device Y1 and the master device Z1 can rotate the cylinder plug 52 of the cylinder lock S1 by the construction master key MK1, and by rotating the cylinder plug 52 by the construction master key MK1, The cylinder lock S1 is locked or unlocked.
The third and fifth upper pins 62, 69 of the master columns 9, 11, 17, 18 are connected to the pin tip surface side (conical surface) and the plug hole 26 of the cylinder plug 52 as the cylinder plug 52 rotates. Due to the contact with the inner periphery, the third and fifth pin springs 63, 70 are pushed and moved into the body holes 25 of the master columns 11, 17, 18 against the third and fifth pin springs 63, 70.

In order to operate the cylinder lock S2 during the construction period, as shown in FIGS. 22 and 23, the construction master key MK1 is inserted into the key hole 55 from the key insertion port 54 of the cylinder lock S2, and the long grooves SK1, SK2 are inserted. It arrange | positions corresponding to the 1st and 2nd pin group P1, P2 of each const column 12-14, 19-21.
In the construction master key MK1, the non-dimple portions M11, M16 are arranged corresponding to the fourth pin group P4 of the master columns 11, 16, and the dimple holes M9, M10, M17, M18 are arranged in the master columns 9 respectively. , 10, 17, 18 corresponding to the third to fifth pin groups P3 to P3.
Furthermore, the construction master key MK1 arranges the non-dimple portions M4 and M7 and the dimple holes M1 to M3, M5 and M6 corresponding to the sixth to eighth pin groups P6 to P8 of the fixed columns 1 to 7, respectively. .

As shown in FIGS. 22 and 23, the cost traction master key MK1 is inserted into the first lower pin 31 ( The first pin group P 1) is pushed and moved against the first pin spring 33, and the boundary between the first lower pin 31 and the first upper pin 32 is positioned (arranged) between the cylinder body 51 and the cylinder plug 52.
The construction master key MK1 moves the second lower pin 35 (second pin group P2) of each of the construction columns 13, 19, and 21 to the second pin spring 38 by the long grooves SK1 and SK2 with the insertion of the key hole 55 of the cylinder lock S2. The boundary between the constant ball 37 and the second upper pin 36 is positioned (arranged) between the cylinder body 51 and the cylinder plug 52 while the constant ball 37 is disposed in the plug hole 26 against the cylinder body 51.

Further, as shown in FIGS. 22 and 23, the construction master key MK1 is moved by the non-dimple portions M11 and M16 in accordance with the insertion of the key hole 55 of the cylinder lock S2, and the fourth lower pins 64 ( The fourth pin group P4) is pushed and moved against the fourth pin spring 67, and the boundary between the fourth lower pin 64 and the MK pin 66 is positioned (arranged) between the cylinder body 51 and the cylinder plug 52. At this time, the MK pin 66 is accommodated in the body hole 25 of the master columns 11 and 16.
Further, the construction master key MK1 pushes and moves the third lower pin 61 (third pin group P3) of the master column 10 against the third pin spring 63 by the dimple hole M10 as the key hole 55 is inserted. 3 The conical surface on the pin tip surface side of the upper pin 62 is positioned (arranged) between the cylinder body 51 and the cylinder plug 52.
The construction master key MK1 pushes the fifth lower pin 68 (fifth pin group P5) of each master column 9 and 18 against the fifth pin spring 70 through the dimple holes M9 and M18 as the key hole 55 is inserted. By moving, the conical surface on the pin tip surface side of the fifth upper pin 69 is positioned (arranged) between the cylinder body 51 and the cylinder plug 52.
Further, the construction master key MK1 pushes and moves the fourth lower pin 64 (fourth pin group P4) of the master column 17 against the fourth pin spring 67 by the dimple hole M17 as the key hole 55 is inserted. 4 The boundary between the upper pin 64 and the MK pin 66 is positioned (arranged) between the cylinder body 51 and the cylinder plug 52. At this time, the MK pin 66 is housed in the body hole 25 of the master column 17.

As shown in FIG. 21, the construction master key MK1 is connected to each fixed column 1 through the non-dimple portions M4 and M7 and the dimple holes M1 to M3, M5 and M7 in accordance with the insertion of the keyhole 55 of the cylinder lock S2. The sixth to eighth lower pins 71, 74, and 77 (sixth to eighth pin groups P6 to P8) are pushed and moved so that the sixth to eighth lower pins 71, 74, 77 and the sixth to eighth upper pins are moved. The boundaries of the pins 72, 75, 78 are positioned (arranged) between the cylinder body 51 and the cylinder plug 52.
Thereby, in the cylinder lock S2, the construction device Y2 and the master device Z2 can operate the cylinder lock S2 with the construction master key MK1, and the cylinder lock S2 is rotated by rotating the cylinder plug 52 with the construction master key MK1. Lock or unlock.
The third and fifth upper pins 62 and 69 of each master column 9, 10, 18 are connected to the pin tip surface side (conical surface) and the inner periphery of the cylinder plug 52 plug hole 26 as the cylinder plug 52 rotates. , Against the third and fifth pin springs 63, 70, are pushed and moved into the body holes 25 of the master columns 9, 10, 18.

  The construction master device X1 operates the construction devices Y1 and Y2 of the corresponding cylinder locks S1 and S2 with the change keys CK1 and CK2 as described later (see paragraph numbers [0142] and [0148]) after the completion of the construction. Thus, the construction is released and the operation of each cylinder lock S1, S2 by the construction master key MK1 is disabled.

After the completion of the construction, the change key CK1 is inserted into the key hole 55 from the key insertion port 54 of the cylinder lock S1, as shown in FIGS. , C20 are arranged corresponding to the second pin group P2 of the respective const columns 12, 14, 20, and the dimple holes C13, C19, C21 are arranged corresponding to the first pin group P1 of the respective const columns 13, 19, 21. And place it.
In the change key CK1, the non-dimple portion C10 is arranged corresponding to the fourth pin group P4 of the master column 10, and the dimple holes C9, C11, C16 to C18 are arranged in the master columns 9, 11, 16 to 18, respectively. It arrange | positions corresponding to the 3rd-5th pin group P3-P5.
Further, in the change key CK1, the non-dimple portions C4 and C7 and the dimple holes C1 to C3, C5 and C6 are arranged corresponding to the sixth to eighth pin groups P6 to P8 of the fixed columns 1 to 7, respectively. .

Change key CK1, as shown in FIGS. 24 and 25, with the insertion of the key hole 55 of the cylinder lock S1, non dimple C12, C14, C 20 by the constructor column 12, 20 the second lower pin 35 (second pin group P2) is pushed and moved against the second pin spring 38 to place (insert) the constant ball 37 into the body hole 25, and the pin rear end face 35B (second upper surface) of the second lower pin 35 The end surface on the pin 36 side is positioned (arranged) between the cylinder body 51 and the cylinder plug 52 .
With the insertion of the key hole 55 of the cylinder lock S1, the change key CK1 is inserted into the first lower pins 31 (first pins) of the respective const columns 13, 19, 21 through the dimple holes C13, C19, C21 (first dimple holes). The group P1) is pushed and moved against the first pin spring 33, and the boundary between the first lower pin 31 and the first upper pin 32 is positioned (arranged) between the cylinder body 51 and the cylinder plug 52.

Further, as shown in FIG. 24, the change key CK1 causes the fourth lower pin 64 (fourth pin group P4) of the master column 10 to be moved to the fourth position by the non-dimple portion C10 as the key hole 55 of the cylinder lock S1 is inserted. The boundary between the fourth lower pin 64 and the MK pin 66 is positioned (arranged) between the cylinder body 51 and the cylinder plug 52 by pushing against the pin spring 67. At this time, the MK pin 66 is housed in the body hole 25 of the master column 10.
Furthermore, the change key CK1 moves the third lower pin 61 (third pin group P3) of the master columns 9, 17, 18 through the dimple holes C9, C17, C18 as the key hole 55 of the cylinder lock S1 is inserted. Pushing and moving against the 3-pin spring 63, the conical surface on the pin tip surface side of the third upper pin 62 is positioned (arranged) between the cylinder body 51 and the cylinder plug 52.
The change key CK1 pushes the fifth lower pin 68 (fifth pin group P5) of the master column 11 against the fifth pin spring 70 through the dimple hole C11 in accordance with the insertion of the key hole 55 of the cylinder lock S1, The conical surface on the pin tip surface side of the fifth upper pin 69 is positioned (arranged) between the cylinder body 51 and the cylinder plug 52.
Further, the dimple key CK1 pushes and moves the fourth lower pin 64 (fourth pin group P4) of the master column 16 against the fourth pin spring 67 through the dimple hole C16 as the key hole 55 of the cylinder lock S1 is inserted. Thus, the boundary between the fourth upper pin 65 and the MK pin 66 is positioned (arranged) between the cylinder body 51 and the cylinder plug 52. At this time, the MK pin 66 is accommodated in the plug hole 26 of the master column 16.

  As shown in FIG. 26, the change key CK1 is attached to the fixed columns 1 to 7 by the non-dimple portions C4 and C7 and the dimple holes C1 to C3, C5, and C6 in accordance with the insertion of the keyhole 55 of the cylinder lock S1. The sixth to eighth lower pins 71, 74, 77 are pushed and moved, and the boundaries of the sixth to eighth lower pins 71, 74, 77 and the sixth to eighth upper pins 72, 75, 78 are It is positioned (arranged) between the cylinder plugs 52.

  Thus, in the cylinder lock S1, the construction device Y1 and the master device Z1 can operate the corresponding cylinder lock S1 with the change key CK1, and the cylinder key 52 can be rotated with the change key CK1.

In releasing the construction of the construction apparatus Y1, the change key CK1 rotates forward in the A direction, for example, as shown in FIG.
The cylinder plug 52 is rotated with respect to the cylinder body 51 by the change key CK1, and the constant ball 37 disposed in the body hole 25 of each of the constant columns 12, 14, 20 does not rotate together with the cylinder plug 52. It is left in the body hole 25 of the body 51.
As the cylinder plug 52 rotates, the ball storage holes 41 to 46 of the cylinder plug 52 face the body holes 25 of the respective const columns 12 to 14 and 19 to 21.
Thereby, the constrained ball 37 in the body hole 25 is stored in the ball storage holes 41, 43, 45 from the body hole 25.
When the change key CK1 is rotated in the reverse direction and removed from the key hole 55 of the cylinder lock S1, as shown in FIGS. 27 and 28, the constant ball 37 remains stored in the ball storage holes 41, 43, 45. Thus, in each of the const columns 12, 14, and 20, the second upper pin 36 is inserted (arranged) from the body hole 25 into the plug hole 26 by the spring force (biasing force) of the second pin spring 38.
The pin front end surface 36A of the second upper pin 36 is in contact with the pin rear end surface 35B of the second lower pin 35, as shown in FIGS. The portions of the second lower pin 35 and the second upper pin 36 that contact each other serve as a boundary between the second lower pin 35 and the second upper pin 36 (the same applies hereinafter).
In this way, the change key CK1 is inserted into the key hole 55 of the cylinder lock S1, the cylinder plug 52 is rotated, and the constant balls 37 of each second pin group P2 are moved to the respective balls corresponding to the respective constant columns 12, 14, and 20. By storing in the storage holes 41, 43, 45, the construction device Y1 is released from the constrain.

After the completion of the construction, the change key CK2 is inserted into the key hole 55 from the key insertion port 54 of the cylinder lock S2, as shown in FIGS. D21 is arranged corresponding to the second pin group P2 of each of the const columns 13, 19, 21 and each dimple hole D12, D14, D20 corresponds to the first pin group P1 of each of the const columns 12, 14, 20 Arrange.
In the change key CK2, the non-dimple portions D9, D17, D18 are arranged corresponding to the fourth and fifth pin groups P4, P5 of the master columns 9, 18, and the dimple holes D10, D11, D16 are provided. The master columns 10, 11, 16 are arranged corresponding to the third and fourth pin groups P3, P4.
Further, the change key CK2 arranges the non-dimple portions D4 and D7 and the dimple holes D1 to D3, D5 and D6 corresponding to the sixth to eighth pin groups P6 to P8 of the fixed columns 1 to 7, respectively. .

As shown in FIGS. 29 and 30, the change key CK2 is inserted into the keyhole 55 of the cylinder lock S2 by the non-dimple portions D13, D19, D21 and the second lower pins 35 of the respective const columns 13, 19, 21. The (second pin group P2) is pushed against the second pin spring 38 to place (insert) the const ball 37 in the body hole 25, and the rear end surface 35B (second upper pin 36) of the second lower pin 35 Side end surface) is positioned (arranged) between the cylinder body 51 and the cylinder plug 52.
As the change key CK2 is inserted into the key hole 55 of the cylinder lock S2, the first lower pins 31 (first pins) of the respective const columns 12, 14, and 20 are connected to the respective dimple holes D12, D14, and D20 (first dimple holes). The group P1) is pushed and moved against the first pin spring 33, and the boundary between the first lower pin 31 and the first upper pin 32 is positioned (arranged) between the cylinder body 51 and the cylinder plug 52.

Further, as shown in FIG. 29, the change key CK2 is inserted into the fifth lower pin 68 (fifth pin group) of the master columns 9 and 18 by the non-dimple portions D9 and D18 as the key hole 55 of the cylinder lock S2 is inserted. P5) is pushed and moved against the fifth pin spring 70, and the conical surface on the pin tip surface side of the fifth lower pin 68 is positioned (arranged) between the cylinder body 51 and the cylinder plug 52.
Furthermore, the change key CK2 pushes the fourth lower pin 64 (fourth pin group P4) of the master column 17 against the fourth pin spring 67 by the non-dimple portion D17 as the key hole 55 of the cylinder lock S2 is inserted. By moving, the boundary between the fourth lower pin 64 and the MK pin 66 is positioned (arranged) between the cylinder body 51 and the cylinder plug 52. At this time, the MK pin 66 is housed in the plug hole 26 of each master column 11, 16.
The change key CK2 pushes and moves the third lower pin 61 (third pin group P3) of the master column 10 against the third pin spring 63 by the dimple hole 10 as the key hole 55 of the cylinder lock S2 is inserted. The conical surface of the third upper pin 62 is positioned (arranged) between the cylinder body 51 and the cylinder plug 52.
In accordance with the insertion of the key hole 55 of the cylinder lock S2, the change key CK2 pushes and moves the fourth lower pin 64 (fourth pin group P4) of the master columns 11 and 16 through the dimple holes D11 and D16. The boundary between the pin 65 and the MK pin 66 is positioned (arranged) between the cylinder body 51 and the cylinder plug 52.

  As shown in FIG. 31, the change key CK2 is connected to the fixed columns 1 to 7 by the non-dimple portions D4 and D7 and the dimple holes D1 to D3, D5, and D6 in accordance with the insertion of the key hole 55 of the cylinder lock S2. The sixth to eighth lower pins 71, 74, 77 are pushed and moved, and the boundaries of the sixth to eighth lower pins 71, 74, 77 and the sixth to eighth upper pins 72, 75, 78 are moved to the cylinder body 51. And is positioned (arranged) in the cylinder plug 52.

  Thereby, in the cylinder lock S2, the construction device Y2 and the master device Z2 can operate the corresponding cylinder lock S2 with the change key CK2, and the cylinder plug 52 can be rotated with the change key CK2.

In releasing the construction of the construction device Y2, the change key CK2 rotates forward in the A direction, for example, as shown in FIG.
The cylinder plug 52 is rotated with respect to the cylinder body 51 by the change key CK <b> 2, and the constant ball 37 disposed in the body hole 25 of each of the constant columns 13, 19, 21 does not rotate together with the cylinder plug 52. It is left in the body hole 25 of the body 51.
As the cylinder plug 52 rotates, the ball storage holes 41 to 46 of the cylinder plug 52 face the body holes 25 of the respective const columns 12 to 14 and 19 to 21.
Thereby, the constrained ball 37 in the body hole 25 is stored in the ball storage holes 42, 44 and 46 from the body hole 25.
When the change key CK2 is reversely rotated and pulled out from the key hole 55 of the cylinder lock S2 , as shown in FIGS. 32 and 33, the constant ball 37 remains stored in the ball storage holes 42, 44, 46. Thus, in each of the constant columns 13, 19, 21, the second upper pin 36 is inserted (arranged) from the body hole 25 into the plug hole 26 by the spring force (biasing force) of the second pin spring 38. The pin front end surface 36A of the second upper pin 36 is in contact with the pin rear end surface 35B of the second lower pin 35, as shown in FIGS.
In this way, the change key CK2 is inserted into the key hole 55 of the cylinder lock S2 , the cylinder plug 52 is rotated, and the constant balls 37 of the second pin groups P2 are moved to the respective balls corresponding to the respective constant columns 13, 19, 21. By storing in the storage holes 42, 44, 46, the construction of the construction device Y2 is released.

When the construction master key MK1 is inserted into the key hole 55 of the cylinder lock S1 after the construction of the cylinder lock S1 (construction device Y1) is released, the construction master key MK1 is moved by the long grooves SK1 and SK2 as shown in FIG. The second lower pin 35 (second pin group P2) of the const columns 12, 14, and 20 is pushed against the second pin spring 38 so that the second upper pin 36 is positioned over the body hole 25 and the plug hole 26. (Deploy.
The construction master key MK1 positions the first pin group P1 of each of the construction columns 13, 19, and 21 in the same state as described in FIGS. 19 and 20 with the insertion of the key hole 55 of the cylinder lock S1. Then, the third to fifth pin groups P3 to P5 of the master columns 9 to 11 and 16 to 18 are positioned (arranged) in the same state as described with reference to FIGS.
Further, the construction master key MK1 positions the sixth to eighth pin groups P6 to P8 of the fixed columns 1 to 7 in the same state as described with reference to FIG. 21 as the key hole 55 of the cylinder lock S1 is inserted. (Deploy.
Thereby, the construction device Y1 of the cylinder lock S1 disables the operation of the cylinder lock S1 by the construction master key MK1 after the release of the construction. As shown in FIG. 34, the cylinder plug 52 cannot be rotated by the second upper pin 36 (second pin group P2) disposed over the body hole 25 and the plug hole 26 of each of the const columns 12, 14, and 20.

When the construction master key MK1 is inserted into the keyhole 55 of the cylinder lock S2 after the construction of the cylinder lock S2 (construction device Y2) is released, the construction master key MK1 is inserted into each construction groove SK1, SK2 as shown in FIG. The second lower pin 35 (second pin group P2) of the columns 13, 19, and 21 is pushed against the second pin spring 38 so that the second upper pin 36 is positioned (arranged) in the body hole 25 and the plug hole 26. )
The construction master key MK1 positions the first pin group P1 of each of the construction columns 12, 14, 20 in the same state as described in FIGS. 29 and 30 as the key hole 55 of the cylinder lock S2 is inserted. (Arrangement) and the third to fifth pin groups P3 to P5 of the master columns 9 to 11 and 16 to 18 are positioned (arrangement) in the same state as described with reference to FIGS.
Furthermore, the construction master key MK1 positions the sixth to eighth pin groups P6 to P8 of the fixed columns 1 to 7 in the same state as described with reference to FIG. 31 as the key hole 55 of the cylinder lock S2 is inserted. (Deploy.
Thereby, the construction device Y2 of the cylinder lock S2 disables the operation of the cylinder lock S2 by the construction master key MK1 after the cancellation of the construction. As shown in FIG. 35, the cylinder plug 52 cannot be rotated by the second upper pin 36 (second pin group P2) disposed over the body hole 25 and the plug hole 26 of each of the const columns 13, 19, and 21.

  When the change key CK1 is inserted into the keyhole 55 of the cylinder lock S1 after the cylinder lock S1 (construction device Y1) is released, the change key CK1 is moved by the non-dimple portions C12, C14, and C20 as shown in FIG. The second lower pin 35 (second pin group P2) of the const columns 12, 14, and 20 is pushed against the second pin spring 38 so that the boundary between the second lower pin 35 and the second upper pin 36 is 51 and the cylinder plug 52, and the first lower pins 31 (first pin group P1) of the respective const columns 13, 19, 21 by the respective dimple holes C13, C19, C21 (first dimple holes). Is pushed against the first pin spring 33 to move the boundary between the first lower pin 31 and the first upper pin 32 between the cylinder body 51 and the cylinder plug 52. To location (arranged).

Further, the change key CK1 explained the third to fifth pin groups P3 to P5 of the respective master columns 6 to 8 and 16 to 18 with the insertion of the key hole 55 of the cylinder lock S1 with reference to FIGS. Position (arrange) in the same state.
Further, the change key CK1 positions the sixth to eighth pin groups P6 to P7 of the fixed columns 1 to 7 in the same state as described with reference to FIG. 26 as the key hole 55 of the cylinder lock S1 is inserted ( Deploy.
Thereby, in the cylinder lock S1, the construction device Y1 and the master device Z1 can operate (lock or unlock) the corresponding cylinder lock S1 with the change key CK1, and the cylinder plug 52 of the cylinder lock S1 can be changed. It is rotated by the key CK1.

  When the change key CK2 is inserted into the keyhole 55 of the cylinder lock S2 after releasing the constrain of the cylinder lock S2 (construction device Y2), the change key CK2 is moved to the non-dimple portions D13, D19, D21 (first number) as shown in FIG. The second lower pin 35 (second pin group P2) of each of the const columns 13, 19, and 21 is pushed against the second pin spring 38 by one dimple hole), and the second lower pin 35 and the second upper pin 36 are moved. Is located (arranged) between the cylinder body 51 and the cylinder plug 52, and the first lower pins 31 (first pin group P1) of the respective const columns 12, 14, 20 by the dimple holes D12, D14, D20. Is pushed against the first pin spring 33 to move the boundary between the first lower pin 31 and the first upper pin 32 between the cylinder body 51 and the cylinder plug 52. To location (arranged).

Further, the change key CK2 has been described with reference to FIGS. 29 and 30 for the third to fifth pin groups P3 to P5 of each of the master columns 9 to 11 and 16 to 18 with the insertion of the key hole 55 of the cylinder lock S2. Position (arrange) in the same state.
Further, the change key CK1 positions the sixth to eighth pin groups P6 to P7 of the fixed columns 1 to 7 in the same state as described with reference to FIG. 31 as the key hole 55 of the cylinder lock S1 is inserted ( Deploy.
Thereby, in the cylinder lock S2, the construction device Y2 and the master device Z2 can operate (lock or unlock) the corresponding cylinder lock S2 with the change key CK2, and the cylinder plug 52 of the cylinder lock S2 can be changed. It is rotated by the key CK2.

When the change key CK2 is inserted into the key hole 55 of the cylinder lock S1 after the cylinder lock S1 (construction device Y1) is released, the change key CK2 is moved by the non-dimple portions D13, D19, D21 as shown in FIG. The first lower pins 31 (first pin group P1) of the respective const columns 13, 19, and 21 are pushed against the first pin springs 33 and positioned (arranged) in the body hole 25 and the plug hole 26.
In accordance with the insertion of the key hole 55 of the cylinder lock S1, the change key CK2 is inserted into the second lower pin 35 (second pin) of each of the const columns 12, 14, 20 through the respective dimple holes D12, D14, D20 (first dimple hole). The group P2) is pushed against the second pin spring 38 to position (place) the second upper pin 36 over the body hole 25 and the plug hole 26.

Further, the change key CK2 is inserted into the third lower pin 61 (third pin group P3) of each master column 9, 17, 18 by the non-dimple portions D9, D17, D18 as the key hole 55 of the cylinder lock S1 is inserted. Is pushed and moved against the third pin spring 63 to be positioned (arranged) in the body hole 25 and the plug hole 26.
The change key CK2 pushes and moves the fifth lower pin 68 (fifth pin group P5) of the master column 11 against the fifth pin spring 70 through the dimple hole D11 with the insertion of the key hole 55 of the cylinder lock S1. The conical surface on the pin tip surface side of the fifth upper pin 69 is positioned (arranged) over the body hole 25 and the plug hole 26.
Further, the change key CK2 pushes the fourth lower pin 64 (fourth pin group P4) of the master column 10 against the fourth pin spring 67 by the dimple hole 10 as the key hole 55 of the cylinder lock S1 is inserted. Then, the MK pin 66 is positioned (arranged) over the body hole 25 and the plug hole 26 of the master column 10.
As the change key CK2 is inserted into the key hole 55 of the cylinder lock S1, the sixth to eighth pin groups P6 to P8 of the fixed columns 1 to 7 are positioned in the same state as described in FIG. Deploy.

  Accordingly, in the cylinder lock S1, the construction device Y1 and the master device Z1 prohibit the operation (locking or unlocking) of the cylinder lock S1 by the change key CK2 other than the change key CK1 corresponding to the cylinder lock S1. The master device Z1 of the cylinder lock S1 rotates the cylinder plug 52 by a third lower pin 61 (third pin group P3) or the like disposed over the body hole 25 and the plug hole 26 of each master column 9, 17, and 18. Ban.

When the change key CK1 is inserted into the key hole 55 of the cylinder lock S2 after releasing the constrain of the cylinder lock S2 (construction device Y2), the change key CK1 is inserted into the dimple holes C13, C19, C21 (the first ones) as shown in FIG. 1 dimple hole), the second lower pins 35 (second pin group P2) of the respective const columns 13, 19, and 21 are pushed against the second pin springs 38 so that the second upper pins 36 are connected to the body holes 25 and Position (arrange) over the plug hole 26.
As the change key CK1 is inserted into the key hole 55 of the cylinder lock S2, the first lower pin 31 (first pin group P1) of each of the const columns 12, 14, 20 is moved to the first position by the non-dimple portions C12, C14, C20. It is pushed and moved against the 1-pin spring 33 to be positioned (arranged) over the body hole 25 and the plug hole 26.

In addition, the change key CK1 moves the third lower pin 61 (third pin group P3) of the master column 10 against the third pin spring 63 by each non-dimple portion C10 as the key hole 55 of the cylinder lock S2 is inserted. Push and move to position (arrange) over the body hole 25 and the plug hole 26.
As the change key CK1 is inserted into the key hole 55 of the cylinder lock S2, the fourth lower pin 64 (fourth pin group P4) of each master column 11, 17 is resisted against the fourth pin spring 67 by each dimple hole C11, C17. Then, the MK pin 66 is positioned (arranged) over the body hole 25 and the plug hole 26 by pushing.
Further, the change key CK1 pushes and moves the fifth lower pin 68 (fifth pin group P5) against the fifth pin spring 70 through the dimple holes C9 and C18 in accordance with the insertion of the key hole 55 of the cylinder lock S2. The fifth upper pin 69 is positioned (arranged) over the body hole 25 and the plug hole 26.
As the change key CK1 is inserted into the key hole 55 of the cylinder lock S2, the sixth to eighth pin groups P6 to P8 of the fixed columns 1 to 7 are positioned in the same state as described in FIG. Deploy.

  Accordingly, in the cylinder lock S2, the construction device Y2 and the master device Z2 prohibit the operation (locking or unlocking) of the cylinder lock S2 by the change key CK1 other than the change key CK2 corresponding to the cylinder lock S2. The master device Z2 of the cylinder lock S2 prohibits the rotation of the cylinder plug 52 by a fifth upper pin 69 (fifth pin group P6) disposed over the body hole 25 and the plug hole 26 of each master column 9, 18.

In the construction master device X1, the column number n (hereinafter referred to as “construction column number n”) of the construction columns of the construction devices Y1, Y2 (cylinder locks S1, S2) is the construction column described with reference to FIGS. It is not limited to the number n = 6 (six constrained columns), and is a plurality of three or more (n = 3, 4, 5, 6, 7,...).
Further, in each construction device Y1, Y2 (each cylinder lock S1, S2), the first pin group P1 is housed in one or a plurality of construction columns instead of all the construction columns, and the second pin group P2 It is possible to store in the remaining const columns other than the const column storing the 1-pin group P1. For example, in FIG. 6, the first pin group P1 is housed in one constrain column 13, and the second pin group P2 is housed in each of the remaining const columns 12, 14, 19 to 21, and in FIG. The first pin group P1 is housed in each of the const columns 12, 14, 19 to 21, and the second pin group P2 is housed in the remaining one of the const columns 13.
At this time, since the construction master key MK1 has the long grooves SK1 and SK2 (groove depth δ3) corresponding to the first and second pin groups P1 and P2 of each construction column, the first and second pin groups P1, Even if the mode (hereinafter referred to as “storage mode P”) in which P2 is stored in each const column is arbitrarily selected, the first lower pin 31 and the first upper pin are attached as the key hole 55 of each cylinder lock is inserted. 32 (first pin group P1) can be positioned (arranged) between the cylinder body 51 and the cylinder plug 52, and the boundary between the constant ball 37 and the second upper pin 36 (second pin group P2) can be And can be positioned (arranged) between the cylinder plugs 52.
Further, the change key corresponding to each cylinder lock forms a dimple hole (first dimple hole) and a non-dimple part according to the accommodation mode of the first and second pin groups P1, P2. Specifically, in each change key, the non-dimple portion is formed corresponding to the second pin group P2 of the construction column, and the dimple hole (first dimple hole) is the same as each long groove of the construction master key. It has a hole depth and is formed corresponding to the first pin group P1 of the const column.
In this way, in the construction master device X1, each construction device Y1, Y2 has a plurality of three or more construction columns, and each construction column is selected to store the first pin group P1 or the second pin group P2. Therefore, the storage mode (storage pattern) P of the first and second pin groups P1 and P2 with respect to each const column is the nth power of the number of types of the first and second pin groups, where n is the number of const columns. For example, if the first and second pin groups are two types, P = ²ⁿ . 6 and 14, each of the first and second pin groups P1 and P2 is of one type and the number of constant columns is n = 6. Therefore, the storage mode P = 2 of the first and second pin groups P1 and P2 is used. ⁶ = 64.
As a result, in order to operate each cylinder lock, it is necessary to duplicate the number of change keys, which is the storage mode of the first and second pin groups P1 and P2 (FIGS. 6 and 14 show 64 Need to duplicate the change key).
Further, in the long grooves SK1 and SK2 of the construction master key MK1 and the non-dimple portions C12, C14 and C20 (or D13, D19 and D21) of the change keys CK1 and CK2, many steps m between the groove depth and the hole depth. (In FIG. 16 to FIG. 18, the second pin group P2 is pushed and moved by two steps of the groove depth δ3 and the hole depth δ1, the number of steps m between the groove depth and the hole depth, If the number of construction columns is n, in order to operate each of the cylinder locks S1, S2, it is necessary to duplicate the number of change keys, which is the nth power of the number of steps m (in the construction master device X1 of the first embodiment) Since the step m = 3 and the number of columns n = 6, it is necessary to duplicate 3 ⁶ = 729 change keys).
In addition, the number of change keys corresponding to the storage mode P of the first and second pin groups, and the step between the groove depth and the hole depth can be manufactured. As shown in FIG. A plurality of (two or more) cylinder locks S1, S2, S3,... And change keys CK1, CK2, CK3,.

In the construction master device X1, as shown in FIGS. 17 and 18, the change keys CK1 and CK2 are arranged at positions corresponding to the second pin group P2 of the construction column at the non-dimple portions C12, C14, C20 (or D13, D19, D21) are formed, but the present invention is not limited to this, and a configuration in which a dimple hole (second dimple hole) is formed at a position corresponding to the second pin group P2 of the const column can also be adopted. At this time, in the change keys CK1 and CK2, the dimple holes (second dimple holes) corresponding to the second pin group P2 are shallower than the groove depths of the long grooves SK1 and SK2 of the construction master key MK1, for example, holes The depth is δ2. Further, the second lower pin 35 of the second pin group P2 is lengthened by the hole depth δ2 of each dimple hole (second dimple hole), and the groove depth δ3 of each of the long grooves SK1, SK2 of the construction master key MK1 is also set. Each dimple hole (second dimple hole) is deepened by a hole depth δ2.
As a result, even if the construction master key MK1 is inserted into the key holes 55 of the cylinder locks S1 and S2, the boundary between the construction ball 37 and the second upper pin 37 (second pin group P2) is separated from the cylinder body 51 and the cylinder plug. 51, even if each change key CK1, CK2 is inserted into the key hole 55 of the corresponding cylinder lock S1, S2, the constant ball 37 is placed (stored) in the body hole 25, and 2 The pin rear end surface 35 </ b> B (end surface on the second upper pin 36 side) of the lower pin 35 can be positioned (arranged) between the cylinder body 51 and the cylinder plug 52.

In the construction master device X1, each of the master devices Z1 and Z2 is configured to store the third to fifth pin groups P3 to P5 in the respective master columns 9 to 11 and 16 to 18.
As shown in FIGS. 19, 22, 24, and 29, the third pin group P3 has a hole depth δ3 of the dimple holes M17, C9, and C18 and a hole depth δ2 of the dimple holes M18, C17, and D10. Due to the two steps, the conical surface on the tip end surface side of the third upper pin 63 is positioned (arranged) between the cylinder body 51 and the cylinder plug 52.
As shown in FIGS. 19, 22, 24, and 29, the fourth pin group P4 includes a dimple hole M10, C16, D11, D18 with a hole depth δ3, and non-dimple parts M6, C10, D17 . The boundary between the fourth lower pin 64 and the MK pin 66 or the boundary between the fourth upper pin 65 and the MK pin 66 is positioned (arranged) between the cylinder body 51 and the cylinder plug 52 by the two steps of the depth δ1.
The fifth pin group P5 is, 19, 22, 24 and, as shown in FIG. 29, the second dimple holes M11, C11 of hole depth .delta.2, and non-dimple M11, D11, D18 of the hole depth δ1 Due to the step, the conical surface on the pin tip surface side of the fifth upper pin 69 is positioned (arranged) between the cylinder body 51 and the cylinder plug 52.
Accordingly, in the construction master key MK1, the dimple holes M9, M10, M17, M18 corresponding to the master columns 9-11, 16-18 of the master devices Z1, Z2 and the non-dimple portions M11, M16 are used as a reference. By appropriately selecting the third to fifth pin groups P3 to P5 to be stored in each master column, the construction master device X1 can be operated by the master device as shown in FIG. , And change keys CK1, CK2, CK3,... Corresponding to the cylinder locks S1, S2, S3,.
At this time, a mode in which the third to fifth pin groups P3 to P5 are accommodated in each master column is selected so that the cylinder locks S1, S2, S3,. And the change keys CK1, CK2, CK3,... Are arranged so that the cylinder plugs 52 can be rotated in the corresponding cylinder locks S1, S2, S3,. Corresponding to the pin groups P3 to P5, a dimple hole having hole depths δ2 and δ3 and a non-dimple portion having a hole depth δ1 (δ1 = 0) are formed.

Second Embodiment
Hereinafter, the construction master device X2 of the second embodiment will be described with reference to FIGS.
In FIGS. 40 to 69, the same reference numerals as those in FIGS.

In FIG. 40, the construction master device X2 of the second embodiment (hereinafter referred to as “construction master device X2”) has a plurality of cylinder locks SA, SB, SC with the construction master key MK2 during the construction period of an apartment or the like. , ... are operated (locking or unlocking). The construction master device X2 operates the construction devices of the corresponding cylinder locks SA, SB, SC,... With the change keys CKA, CKB, CKC,. To do.
For convenience of explanation, the construction master device X2 will be described with a configuration including first and second cylinder locks SA and SB, a construction master key MK2, and change keys CKA and CKB corresponding to the cylinder locks SA and SB.

  40 to 69, the construction master device X2 of the second embodiment includes a plurality of cylinder locks SA, SB, a construction master key MK2, and change keys CKA, CKB corresponding to the cylinder locks SA, SB.

<Cylinder lock SA>
41 to 45, the cylinder lock SA (first cylinder lock) includes a cylinder body 51, a cylinder plug 52, a construction device YA, and a master device ZA.

  In the cylinder lock SA, the cylinder body 51 and the cylinder plug 52 have the same configuration as the cylinder lock S1, and have a key insertion port 54 and a key hole 55 in the cylinder plug 52.

As shown in FIG. 41, the construction device YA is provided in the cylinder lock SA (cylinder cylinder 51 and cylinder plug 52) by disposing a master device ZA between the key insertion port 54 of the cylinder lock SA.
The construction apparatus YA includes three or more plurality of construction columns, for example, six construction columns 12 to 14, 19 to 21, a plurality of first pin groups PA, a plurality of second pin groups PB, a plurality of construction balls 97, and a plurality of construction columns 97. Ball storage holes 41 to 46 are provided.

Const Rakushon device each constructor column 12～14,19～21 of YA is the same configuration as the cylinder lock S1 (const column apparatus Y1), constituted by cylinder pits 25 and the plug hole 26.

The first pin group PA has a first lower pin 91 (lower pin), a first upper pin 92 ( upper pin), and a first pin spring 93, as shown in FIGS.

As shown in FIG. 44, the first lower pin 91 has a pin front end surface 91A and a pin rear end surface 91B, and the pin front end surface 91A side has a stepped portion 91C and is reduced in diameter.
The first lower pin 91 is slidably disposed in the plug hole 26 in the radial direction by inserting the pin distal end surface 91 </ b> A side into the plug hole 26 from the outer periphery 52 a of the cylinder plug 52.
The first lower pin 91 is disposed in the plug hole 26 with the stepped portion 91 </ b> C contacting the stepped portion 26 </ b> C of the plug hole 26. Thus, the first lower pin 91 is held by the cylinder plug 52 in the plug hole 26 and does not fall out into the key hole 55.
In the first lower pin 91, the pin tip surface 91 </ b> A side protrudes into the key hole 55 through the plug hole 26. The pin front end surface 91 </ b> A side of the first lower pin 91 is positioned to protrude from the center line CT toward the plug hole 26 with a distance τ in the radial direction.

As shown in FIG. 44, the first upper pin 92 has a pin front end surface 92A and a pin rear end surface 92B. The first upper pin 92 has a spring accommodating recess 92C, and the spring accommodating recess 92C is formed on the pin rear end face 92B side of the first upper pin 92. The spring accommodating recess 92 </ b> C opens in the pin rear end surface 92 </ b> B of the first upper pin 92.
The first upper pin 92 is slidably disposed in the body hole 25 in the radial direction by inserting the pin tip end surface 92 </ b> A side into the body hole 25 from the outer periphery 51 a of the cylinder body 51. The pin front end surface 92A of the first upper pin 92 is in contact with the pin rear end surface 91B of the first lower pin.
In the first lower pin 91 and the first upper pin 92, the portions that are in contact with each other serve as a boundary between the first lower pin 91 and the first upper pin 92.
The first lower pin 91 and the first upper pin 92 are located (arranged) between the cylinder body 51 and the cylinder plug 52 so that the boundary between the first lower pin 91 and the first upper pin 92 is located. 26 (contained).

As shown in FIG. 44, the first pin spring 93 is disposed in the body hole 25 and is inserted into the spring accommodating recess 92C. The first pin spring 93 is disposed in the body hole 25 between the spring housing recess 92 </ b> C and the spring plate 56 (or the spring stop plate 57). The first pin spring 93 is compressed and brought into contact with the bottom surface of the spring housing recess 92 </ b> C and the spring stop plate 56 (or the spring stop plate 57).
Accordingly, the first pin spring 93 biases the first upper pin 92 to the first lower pin 91 by a spring force (biasing force) in the radial direction. The first upper pin 92 is biased to the first lower pin 91 by the spring force (biasing force) of the first pin spring 93.

As shown in FIGS. 41, 42 and 44, the first pin group PA is accommodated in each of the const columns 13, 19, and 21, for example.
As a result, in the cylinder lock SA, the first pin group PA is housed in the plurality of constant columns 13, 19, 21 instead of all the constant columns 12-14, 19-21.
The first pin group PA is housed in each of the const columns 13, 19, 21 with the boundary between the first lower pin 91 and the first lower pin 92 positioned between the cylinder body 51 and the cylinder plug 52 before the key is inserted. Is done.

  As shown in FIGS. 41, 42 and 45, the second pin group PB includes a second lower pin 95 (lower pin), a second upper pin 96 (upper pin), a constrain ball 97, and a second pin spring 98. Have.

Second lower pin 95, as shown in FIG. 45, it has a pin tip end face 95A and the pin rear end face 95B, the pin tip surface 95A side is reduced in diameter with a stepped portion 95C. The second lower pin 95 is formed shorter than the first lower pin 91 and has a ball slot 95D. The ball slot 95D is formed on the pin rear end surface 95B side of the second lower pin 95 and opens to the pin rear end surface 95B of the second lower pin 95.
The second lower pin 95 is slidably disposed in the plug hole 26 in the radial direction by inserting the pin tip surface 95A side into the plug hole 26 from the outer periphery 52a of the cylinder plug 52.
The second lower pin 95 is disposed in the plug hole 26 with the stepped portion 95 </ b > C abutting against the stepped portion 26 </ b > A of the plug hole 26. As a result, the second lower pin 95 is held by the cylinder plug 52 in the plug hole 26 and does not fall into the key hole 55.
In the second lower pin 95, the pin tip surface 95 A side protrudes into the key hole 55 through the plug hole 26. The pin front end surface 95A of the second lower pin 95 is positioned to protrude from the center line CT toward the plug hole 26 with a distance τ in the radial direction.

As shown in FIG. 45, the second upper pin 96 has a pin front end surface 96A and a pin rear end surface 96B. The second upper pin 96 has a spring accommodating recess 96C, and the spring accommodating recess 96C is formed on the pin rear end face 96B side of the second upper pin 96. The spring housing recess 96 </ b> C opens in the pin rear end surface 96 </ b> B of the second upper pin 96.
The second upper pin 96 is slidably disposed in the body hole 26 in the radial direction by inserting the pin front end surface 96 </ b> A side into the body hole 25 from the outer periphery 51 a of the cylinder body 51.

As shown in FIG. 45, the constrained ball 97 is disposed (stored) in the plug hole 26. The constrained ball 97 is assembled between the second lower pin 95 and the second upper pin 96.
The constrained ball 97 is inserted into the ball slot 95D of the second lower pin 95 so as to be freely extracted, and abuts against the pin tip surface 96A of the second upper pin 96.
The portions of the constant ball 97 and the second upper pin 96 that are in contact with each other serve as a boundary between the constant ball 97 and the second upper pin 95.
The constant ball 97 and the second upper pin 96 are positioned (arranged) between the cylinder body 51 and the cylinder plug 52 at the boundary between the constant ball 97 and the second upper pin 96 and are disposed in the body hole 25 and the plug hole 26 ( Stored).

As shown in FIG. 45, the second pin spring 98 is disposed in the body hole 25 and is inserted into the spring housing recess 96C. The second pin spring 98 is disposed between the spring housing recess 96 </ b> C and the spring stop plate 56 (or the spring stop plate 57) in the body hole 25. The second pin spring 98 is compressed and brought into contact with the bottom surface of the spring housing recess 96C and the spring stop plate 56 (or the spring stop plate 57).
As a result, the second pin spring 98 urges the second upper pin 96 and the constant ball 97 toward the second lower pin 95 by a spring force (biasing force) in the radial direction. The second upper pin 96 is biased to the second lower pin 95 by the spring force (biasing force) of the second pin spring 98.

As shown in FIGS. 41, 42 and 45, each second pin group PB is housed, for example, in each of the const columns 12, 14, and 20.
Thus, in the cylinder lock SA , the second pin group PB is stored in the remaining cost columns 12, 14, 20 other than the cost columns 13, 19, 21 in which the first pin group PA is stored.
Prior to key insertion, the second pin group PB is housed in the respective constraining columns 12, 14, 20, with the boundary between the constraining ball 97 and the second upper pin 96 positioned between the cylinder body 51 and the cylinder plug 52. .

  The ball storage holes 41 to 46 of the construction device YA have the same configuration as the cylinder lock S1 (construction device Y1), and are formed in the cylinder plug 52 corresponding to the construction columns 12 to 14 and 19 to 21, respectively.

As shown in FIG. 41, the master device ZA is arranged on the key insertion port 54 side of the cylinder lock SA and is provided in the cylinder lock SA (cylinder cylinder 51 and cylinder plug 52).
The master device ZA enables the rotation of the cylinder plug 52 to the cylinder lock SA by the construction master key MK2 and the change key CKA corresponding to the cylinder lock SA, and the cylinder lock SA by the change key CKB other than that corresponding to the cylinder lock SA. The rotation of the cylinder plug 52 is prohibited.
The master device ZA has the same configuration as the master device Z1 of the cylinder lock S1, and includes a plurality of master columns 8 to 11, 16 to 18, a plurality of third pin groups P3, a plurality of fourth pin groups P4, and a fifth. A pin group P5 is provided.
In the master device ZA, the third pin group P3 is housed in each master column 9, 17, 18 and the fourth pin group P4 is housed in each master column 10,16. The fifth pin group P5 is housed in the master column 11.

As shown in FIG. 43, the cylinder lock SA includes a plurality of fixed columns 1 to 4, a sixth pin group P6, a plurality of seventh pin groups P7, and an eighth pin group P8.
In the cylinder lock SA, each of the fixed columns 1 to 4 has the same configuration as the cylinder lock S1 and includes a body hole 25 and a plug hole 26. The cylinder lock SA does not have the fixed columns 5 to 7 of the cylinder lock S1.
In the cylinder lock SA, the sixth pin group P6 is housed in the fixed column 1 and the seventh pin group P7 is housed in each of the fixed columns 2 and 3. In the cylinder lock SA, the eighth pin group P8 is housed in the fixed column 4.

<Cylinder lock SB>
46 and 47, the cylinder lock SB (second cylinder lock) includes a cylinder body 51, a cylinder plug 52, a construction device YB, and a master device ZB.

  In the cylinder lock SB, the cylinder body 51 and the cylinder plug 52 have the same configuration as the cylinder lock S1, and have a key insertion port 54 and a key hole 55 in the cylinder plug 52.

As shown in FIG. 46, the construction device YB is provided in the cylinder lock SB (cylinder cylinder 51 and cylinder plug 52) by disposing the master device ZB between the key insertion port 54 of the cylinder lock SB.
As shown in FIG. 46, the construction device YB includes three or more plurality of construction columns, for example, six construction columns 12 to 14, 19 to 21, a plurality of first pin groups PA, a plurality of second pin groups PB, And a plurality of ball storage holes 41 to 46.

  Each of the construction columns 12 to 14 and 19 to 21 of the construction device YB has the same configuration as the cylinder lock S1 and includes a body hole 25 and a plug hole 26.

The first pin group PA of the construction device YB has the same members and the same configuration as the cylinder lock SA (construction device YA), and includes a first lower pin 91 (lower pin), a first upper pin 92 (upper pin), and It has the 1st pin spring 93 (refer FIG. 44).
In the construction device YB, the first pin group PA is housed in each of the construction columns 12, 14, 20 as shown in FIGS.
As a result, in the cylinder lock SB, the first pin group PA is housed in the plurality of constant columns 12, 14, and 20 instead of all the constant columns 12 to 14 and 19 to 21.
The first pin group PA is stored in each of the const columns 12, 14 and 20 with the boundary between the first lower pin 91 and the first upper pin 92 positioned between the cylinder body 51 and the cylinder plug 52 before the key is inserted. Is done.

The second pin group PB of the construction device YB has the same members and the same configuration as the cylinder lock SA, and includes the second lower pin 95 (lower pin), the second upper pin 96 (upper pin), the construction ball 97, and the second A two-pin spring 98 is provided (see FIG. 45).
In the construction device YB, the second pin group PB is housed in each of the construction columns 13, 19, and 21, as shown in FIGS.
Thus, in the cylinder lock SB, the second pin group PB is stored in the remaining cost columns 13, 19, and 21 other than the cost columns 12, 14, and 20 that store the first pin group PA.
Prior to key insertion, the second pin group PB is housed in the respective const columns 13, 19, 21 with the boundary between the constraining ball 97 and the second upper pin 96 positioned between the cylinder body 51 and the cylinder plug 52. .

  The ball storage holes 41 to 46 of the construction device YB have the same configuration as the cylinder lock S1 (construction device Y1) and are formed in the cylinder plug 52 corresponding to the construction columns 12 to 14 and 19 to 21, respectively.

As shown in FIG. 46, the master device ZB is disposed on the key insertion port 54 side of the cylinder lock SB, and is provided in the cylinder lock SB (cylinder cylinder 51 and cylinder plug 52).
The master device ZB enables rotation of the cylinder plug 52 by the construction master key MK2 and the change key CKB corresponding to the cylinder lock SB, and prohibits rotation of the cylinder plug 52 by the change key CKA other than that corresponding to the cylinder lock SB. .
The master device ZB has the same configuration as the master device Z2 of the cylinder lock S2, and includes a plurality of master columns 9 to 11, 16 to 18, a third pin group P3, a plurality of fourth pin groups P4, and a plurality of fifth columns. A pin group P5 is provided.
In the master device ZB, the third pin group P3 is housed in the master column 10, and the fourth pin group P4 is housed in each master column 11, 16, and 17. The fifth pin group P5 is housed in the master column 18.

As shown in FIG. 43, the cylinder lock SB includes a plurality of fixed columns 1 to 4, a sixth pin group P6, a plurality of seventh pin groups P7, and an eighth pin group P8.
In the cylinder lock SB, each of the fixed columns 1 to 4 has the same configuration as the cylinder lock S1 and includes a body hole 25 and a plug hole 26. The cylinder lock SB does not have the fixing columns 5 to 7 of the cylinder lock S1.
In the cylinder lock SB, the sixth pin group P6 is housed in the fixed column 1 and the seventh pin group P7 is housed in each of the fixed columns 2 and 3. In the cylinder lock SB, the eighth pin group P8 is housed in the fixed column 4.

<Construction Master Key MK2>
The construction master key MK2 is inserted into the key holes 55 of the cylinder locks SA and SB from the key insertion port 54 during the construction period, and operates (locks or unlocks) the cylinder locks SA and SB. The construction master key MK2 is a reversible key.

  The construction master key MK2 does not correspond to the first and second pin groups PA and PB of all the construction columns 12 to 14 and 19 to 21 in each construction device YA and YB, and each master column 9 of the master device ZB. Key lengths corresponding to the third to fifth pin groups P3 to P5 of -11, 16 to 18 (see FIGS. 51 to 53).

As shown in FIG. 48, the construction master key MK2 has a first keyhole row mr3 and a second keyhole row mr4. The keyhole rows mr3 and mr4 are arranged on the key front plane Ma and the key back plane Mb. It is formed.
The first and second keyhole rows mr3 and mr4 are arranged in parallel in the key width direction NH on the key front and back planes Ma and Mb.
In the key back plane Mb of the construction master key MK2, the first key hole row mr3 is formed to face the second key hole row mr4 of the key front plane Ma.
In the key back plane Mb of the construction master key MK2, the second keyhole row mr4 is formed to face the first keyhole row mr3 of the key front plane Ma.

The first keyhole row mr3 includes a non-dimple portion M11 and a plurality of dimple holes M10 and M9 in the key longitudinal direction NK.
In the construction master key MK2, the non-dimple portion M11 and the dimple holes M10 and M9 have the same configuration as the construction master key MK1, and the third to fifth of the master columns 9 to 11 of the cylinder locks SA and SB. It is formed corresponding to pin groups P3 to P5.

The second keyhole row mr4 has a plurality of dimple holes M18 and M17 and a non-dimple portion M16 in the key longitudinal direction NK.
In the construction master key MK2, the dimple holes M18 and M17 and the non-dimple portion M16 have the same configuration as the construction master key MK1, and the third to fifth fifth columns of the master columns 16 to 18 of the cylinder locks SA and SB. It is formed corresponding to pin groups P3 to P5.

  The construction master key MK2 has a non-dimple portion M4 and a plurality of dimple holes M3, M2, and M1 on the side surfaces of the keys in the key longitudinal direction NK. In the construction master key MK2, the non-dimple portion M4 and the plurality of dimple holes M3, M2, and M1 have the same configuration as the construction master key MK1, and the sixth to eighth pin groups P6 to P6 of the fixed columns 1 to 4. It is formed corresponding to P8.

<Change key CKA>
The change key CKA (first change key) is provided corresponding to the cylinder lock SA. After completion of the construction, the change key CKA is inserted into the key hole 55 of the cylinder lock SA from the key insertion port 54, and operates (locks or unlocks) the cylinder lock SA. The change key CKA is a reversible key.

  As shown in FIG. 49, the change key CKA has a first key hole row cr1 and a second key hole row cr2, and the key hole rows cr1 and cr2 are formed on the key front plane Ca and the key back plane Cb. Is done.

In the change key CKA, the first key hole row cr1 has the same configuration as that of the change key CK1, and includes non-dimple portions C14, C12, C10 and dimple holes C13, C11, C9.
In the change key CKA, the non-dimple portions C14 and C12 are formed corresponding to the second pin group PA of the respective const columns 14 and 12 of the cylinder lock SA, and the dimple hole C13 (first dimple hole) is the cylinder lock SA. Are formed corresponding to the first pin group PA of the const column 13.
In the construction master key CKA, the dimple holes C9 to C11 are formed corresponding to the third to fifth pin groups P3 to P5 of the master columns 9 to 11 of the cylinder lock SA.

In the change key CKA, the second key hole row cr2 has the same configuration as the change key CK1, and has a non-dimple portion C20 and dimple holes C21, C16 to C19.
In the change key CKA, the non-dimple portion C20 is formed corresponding to the second pin group PB of the constant column 20 of the cylinder lock SA, and the dimple holes C19 and C21 (first dimple holes) are formed in the cylinder lock SA. It is formed corresponding to the first pin group PA of the const columns 19 and 21.
In the change key CKA, the dimple holes C16 to C18 are formed corresponding to the third and fourth pin groups P3 and P4 of the master columns 1 to 18 of the cylinder lock SA.

The change key CKA has a non-dimple portion C4 and dimple holes C3, C2, and C1 on the side surfaces of the keys in the key longitudinal direction NK.
In the change key CKA, the non-dimple portion C4 and the dimple holes C3, C2, C1 have the same configuration as the change key CK1 (construction master key MK1), and the sixth to eighth pins of the fixed columns 1 to 4. It is formed corresponding to groups P6 to P8.

<Change key CKB>
The change key CKB (second change key) is provided corresponding to the cylinder lock SB. After completion of the construction, the change key CKB is inserted into the key hole 55 of the cylinder lock SB from the key insertion port 54, and operates (locks or releases) the cylinder lock SB. The change key CKB is a reversible key.
As shown in FIG. 50, the change key CKB has a first keyhole row dr1 and a second keyhole row dr2, and the keyhole rows dr1 and dr2 are formed on the key front plane Da and the key back plane Db. Is done.

In the change key CKB, the first key hole row dr1 has the same configuration as the change key CK1, and has dimple holes D14, D12, D11, D10 and non-dimple parts D13, D9.
In the change key CKB, the dimple holes D14 and D12 (first dimple holes) are formed corresponding to the first pin group PA of the respective const columns 14 and 12 of the cylinder lock SB, and the non-dimple portion D13 is a cylinder lock. It is formed corresponding to the second pin group PB of the SB constant column 13.
In the change key CKB, the dimple holes D11 and D10 and the non-dimple portion D9 are formed corresponding to the third to fifth pin groups P3 to P5 of the master columns 9 to 11 of the cylinder lock SB.

In the change key CKB, the second key hole row dr2 has the same configuration as the change key CK2, and includes non-dimple portions D21, D19, D17, D18 and dimple holes D20, D16.
In the change key CKB, the non-dimple portions D21 and D19 are formed corresponding to the second pin group PB of the respective const columns 21 and 19 of the cylinder lock SB, and the dimple holes D20 (first dimple holes) are cylinder locks. It is formed corresponding to the first pin group PA of the SB const column 20.
In the change key CKB, the non-dimple portions D18 and D17 and the dimple hole D16 are formed corresponding to the third and fourth pin groups P3 and P4 of the master columns 16 to 18 of the cylinder lock SB.

The change key CKB has a non-dimple portion C4 and dimple holes C3, C2, and C1 on the side surfaces of the keys in the key longitudinal direction NK.
In the change key CKB, the non-dimple portion C4 and the respective dimple holes C3, C2, C1 have the same configuration as the change keys CK1, CK2 (construction master key MK1), and the sixth to the sixth of the fixed columns 1-4. It is formed corresponding to 8-pin groups P6 to P8.

  The construction master device X2 operates (locks or unlocks) each cylinder lock SA, SB with the construction master key MK2 during the construction period.

In order to operate the cylinder lock SA during the construction period, the construction master key MK2 is inserted into the key hole 55 from the key insertion port 54 of the cylinder lock SA as shown in FIGS. 51 and 52, and in the construction device YA, Without corresponding to the first and second pin groups PA, PB of the const columns 12-14, 19-21, the non-dimple portions M11, M16 are connected to the fourth and fifth pin groups P4, P4 of the master columns 11, 16, respectively. It arrange | positions corresponding to P5.
In the construction master key MK2, the dimple holes M9, M10, M17, and M18 are arranged corresponding to the third and fourth pin groups P3 and P4 of the master columns 9, 10, 17, and 18, respectively.
Thereby, the construction master key MK2 is arranged in the keyhole 55 of the cylinder lock S1 in correspondence with the master device ZA without corresponding to the construction device YA.
Further, as shown in FIG. 51, the construction master key MK2 is arranged with the non-dimple portion M4 and the dimple holes M1 to M3 corresponding to the sixth to eighth pin groups P6 to P8 of the fixed columns 1 to 4, respectively. To do.

As shown in FIG. 51, the construction master key MK2 moves the fifth lower pin 68 (fifth pin group P5) of the master column 11 to the fifth pin spring by the non-dimple portion 11 as the key hole 55 of the cylinder lock SA is inserted. By pushing against 70, the conical surface on the pin tip surface side of the fifth upper pin 69 is positioned (arranged) between the cylinder body 51 and the cylinder plug 52.
In addition, the construction master key MK2 moves the fourth lower pin 64 (fourth pin group P4) of the master column 16 against the fourth pin spring 67 by the non-dimple portion 16 as the key hole 55 of the cylinder lock SA is inserted. The boundary between the fourth lower pin 64 and the MK pin 66 is positioned (arranged) between the cylinder body 51 and the cylinder plug 52 by pushing. At this time, the MK pin 66 is housed in the body hole 25 of the master column 16.
Further, the construction master key MK2 is inserted into the third lower pin 61 (third pin group P3) of each master column 9, 17, 18 by the dimple holes M9, M17, M18 as the key hole 55 of the cylinder lock SA is inserted. Is pressed against the third pin spring 63 to position (place) the conical surface of the third upper pin 62 on the pin tip surface side between the cylinder body 51 and the cylinder plug 52.
The construction master key MK2 pushes and moves the fourth lower pin 64 (fourth pin group P4) of the master column 10 against the fourth pin spring 67 by the dimple hole 10 as the key hole 55 of the cylinder lock SA is inserted. The boundary between the fourth upper pin 64 and the MK pin 66 is positioned (arranged) between the cylinder body 51 and the cylinder plug 52. At this time, the MK pin 66 is accommodated in the plug hole 26 of the master column 10.

As shown in FIG. 52, the construction master key MK2 is connected to the non-dimple portions M4 and the dimple holes M1 to M3 in accordance with the insertion of the keyhole 55 of the cylinder lock SA. 8 Lower pins 71, 74, 77 (sixth to eighth pin groups P6 to P8) are pushed and moved, and sixth to eighth lower pins 71, 74, 77 and sixth to eighth upper pins 72, 75, 78 are pushed. Is positioned (arranged) between the cylinder body 51 and the cylinder plug 52.
Further, the construction master key MK2 does not push and move the first and second pin groups PA and PB of each of the construction columns 12 to 14 and 19 to 21 with the insertion of the key hole 55 of the cylinder lock S1. The second pin groups PA and PB remain positioned (arranged) in the same state as described with reference to FIGS.
Thereby, in the cylinder lock SA, the construction device YA and the master device ZA enable the cylinder plug 52 of the cylinder lock SA to be rotated by the construction master key MK2, and by rotating the cylinder plug 52 by the construction master key MK2, The cylinder lock SA is locked or unlocked.
The third and fifth upper pins 62, 69 of the master columns 9, 11, 17, 18 are connected to the pin tip surface side (conical surface) and the plug hole 26 of the cylinder plug 52 as the cylinder plug 52 rotates. By being in contact with the inner periphery, the third and fifth pin springs 63 and 70 are pushed and moved into the body holes 25 of the master columns 9, 11, 17, and 18 against the third and fifth pin springs 63 and 70.

In order to operate the cylinder lock SB during the construction period, as shown in FIGS. 52 and 53, the construction master key MK2 is inserted into the key hole 55 from the key insertion port 54 of the cylinder lock SB. The non-dimple portions M11, M16 correspond to the fourth pin group P4 of the master columns 11, 16 without corresponding to the first and second pin groups PA, PB of the const columns 12-14, 19-21. Deploy.
In the construction master key MK2, the dimple holes M9, M10, M17, and M18 are arranged corresponding to the third to fifth pin groups P3 to P5 of the master columns 9, 10, 17, and 18, respectively.
Thereby, the construction master key MK2 is arranged in the keyhole 55 of the cylinder lock S2 so as to correspond to the master device ZB without corresponding to the construction device YB.
Further, as shown in FIG. 52, the construction master key MK2 is arranged with the non-dimple portion M4 and the dimple holes M1 to M3 corresponding to the sixth to eighth pin groups P6 to P8 of the fixed columns 1 to 4, respectively. To do.

As shown in FIG. 53, the construction master key MK2 is connected to the fourth lower pin 64 (fourth pin group P4) of each master column 11, 16 by the non-dimple portions M11, M16 as the key hole 55 of the cylinder lock SB is inserted. ) Is pushed against the fourth pin spring 67 so that the boundary between the fourth lower pin 64 and the MK pin 66 is positioned (arranged) between the cylinder body 51 and the cylinder plug 52. At this time, the MK pin 66 is accommodated in the body hole 25 of each master column 11, 16.
In addition, the construction master key MK2 moves the third lower pin 61 (third pin group P3) of the master column 10 against the third pin spring 63 by each dimple hole M10 as the key hole 55 of the cylinder lock SB is inserted. By pushing and moving, the conical surface on the pin tip surface side of the third upper pin 62 is positioned (arranged) between the cylinder body 51 and the cylinder plug 52.
Further, the construction master key MK2 causes the fifth lower pin 68 (fifth pin group P5) of the master columns 9 and 18 to move to the fifth pin spring through the dimple holes M9 and M18 as the key hole 55 of the cylinder lock SB is inserted. By pushing against 70, the conical surface on the pin tip surface side of the fifth upper pin 69 is positioned (arranged) between the cylinder body 51 and the cylinder plug 52.
The construction master key MK2 pushes the fourth lower pin 64 (fourth pin group P4) of the master column 17 against the fourth pin spring 67 by the dimple hole M17 with the insertion of the key hole 55 of the cylinder lock SB. The boundary between the fourth upper pin 64 and the MK pin 66 is positioned (arranged) between the cylinder body 51 and the cylinder plug 52. At this time, the MK pin 66 is accommodated in the plug hole 26 of the master column 17.

As shown in FIG. 52, the construction master key MK2 is inserted into the non-dimple portion M4 and the dimple holes M1 to M3 in accordance with the insertion of the keyhole 55 of the cylinder lock SB. 8 Lower pins 71, 74, 77 (sixth to eighth pin groups P6 to P8) are pushed and moved, and sixth to eighth lower pins 71, 74, 77 and sixth to eighth upper pins 72, 75, 78 are pushed. Is positioned (arranged) between the cylinder body 51 and the cylinder plug 52.
Further, the construction master key MK2 does not push and move the first and second pin groups PA and PB of each of the construction columns 12 to 14 and 19 to 21 with the insertion of the key hole 55 of the cylinder lock S2. The second pin groups PA and PB remain positioned (arranged) in the same state as described with reference to FIGS.
Thereby, in the cylinder lock SB, the construction device YB and the master device ZB can rotate the cylinder plug 52 of the cylinder lock S2 by the construction master key MK2, and by rotating the cylinder plug 52 by the construction master key MK2, The cylinder lock SB is locked or unlocked.
The third and fifth upper pins 62, 69 of the master columns 9, 10, 18 are connected to the pin tip surface side (conical surface) and the inner periphery of the plug hole 26 of the cylinder plug 26 as the cylinder plug 52 rotates. Against the third and fifth pin springs 63, 70, and is pushed and moved into the body holes 25 of the master columns 9, 10, 18.

  The construction master device X2 operates the construction devices YA and YB of the corresponding cylinder locks SA and SB with the change keys CKA and CKB as described later (see paragraph numbers [0222] and [0228]) after the completion of the construction. Thus, the operation is released and the operation of each cylinder lock SA, SB by the construction master key MK2 is disabled.

After the completion of the construction, the change key CKA is inserted into the key hole 55 from the key insertion port 54 of the cylinder lock S1, as shown in FIGS. 54 to 56, in order to cancel the construction of the cylinder lock SA (construction device SA). The dimple portions C12, C14, C20 are arranged corresponding to the second pin groups PB of the respective const columns 12, 14, 20, and the dimple holes C13, C19, C21 (first dimple holes) are arranged in the respective const columns 13, 19 and 21 are arranged corresponding to the first pin group PA.
Further, the change key CKA has the non-dimple portion C10 arranged corresponding to the fourth pin group P4 of the master column 10, and the dimple holes C9, C11, C16 to C18 are arranged in the master columns 9, 11, 16 to 18, respectively. It arrange | positions corresponding to the 3rd-5th pin group P3-P5.
Further, the change key CKA arranges each non-dimple portion C4 and each dimple hole C1 to C3 corresponding to the sixth to eighth pin groups P6 to P8 of the fixed columns 1 to 4, respectively.

As shown in FIG. 54 and FIG. 55, the change key CKA is inserted into the key hole 55 of the cylinder lock SA by the non-dimple portions C12, C14, C21 and the second lower pins 95 of the respective const columns 12, 14, 21. (second pin group PB) move pushing against the second pin spring 98, placing the constructor ball 97 in cylinder pits 25 (insertion) and, and the pin rear surface 95 B (second upper second lower pin 95 The end surface on the pin 96 side) is positioned (arranged) between the cylinder body 51 and the cylinder plug 52 .
In accordance with the insertion of the key hole 55 of the cylinder lock SA, the change key CKA is inserted into the first lower pins 91 (first pins) of the respective const columns 13, 19, 21 through the respective dimple holes C13, C19, C21 (first dimple holes). The group PA) is held without being pushed, and the boundary between the first lower pin 91 and the first upper pin 92 remains located (arranged) between the cylinder body 51 and the cylinder plug 52 (FIGS. 41 to 45). In the same state as described in the above).

Further, as shown in FIG. 54, the change key CKA moves the fourth lower pin 64 (fourth pin group P4) of the master column 10 to the fourth position by the non-dimple portion C10 as the key hole 55 of the cylinder lock SA is inserted. The boundary between the fourth lower pin 64 and the MK pin 66 is positioned (arranged) between the cylinder body 51 and the cylinder plug 52 by pushing against the pin spring 67. At this time, the MK pin 66 is housed in the body hole 25 of the master column 10.
Further, the change key CKA moves the third lower pin 61 (third pin group P3) of the master columns 9, 17, 18 through the dimple holes C9, C17, C18 as the key hole 55 of the cylinder lock SA is inserted. Pushing and moving against the 3-pin spring 63, the conical surface on the pin tip surface side of the third upper pin 62 is positioned (arranged) between the cylinder body 51 and the cylinder plug 52.
The change key CKA pushes the fifth lower pin 68 (fifth pin group P5) of the master column 11 against the fifth pin spring 70 through the dimple hole C11 with the insertion of the key hole 55 of the cylinder lock SA, The conical surface on the pin tip surface side of the fifth upper pin 69 is positioned (arranged) between the cylinder body 51 and the cylinder plug 52.
Further, the change key CKA pushes and moves the fourth lower pin 64 (fourth pin group P4) of the master column 16 against the fourth pin spring 67 through the dimple hole C16 as the key hole 55 of the cylinder lock SA is inserted. Thus, the boundary between the fourth upper pin 65 and the MK pin 66 is positioned (arranged) between the cylinder body 51 and the cylinder plug 52. At this time, the MK pin 66 is accommodated in the plug hole 26 of the master column 16.

  As the key hole 55 is inserted, the change key CKA pushes the sixth to eighth lower pins 71, 74, and 77 of the fixed columns 1 to 4 through the non-dimple portions C4 and the dimple holes C1 to C3, The boundaries of the sixth to eighth lower pins 71, 74, 77 and the sixth to eighth upper pins 72, 75, 78 are positioned (arranged) between the cylinder body 51 and the cylinder plug 52.

  Thereby, in the cylinder lock SA, the construction device YA and the master device ZA can operate the corresponding cylinder lock SA with the change key CKA, and the cylinder key 52 can be rotated with the change key CKA.

In canceling the construction of the construction apparatus YA, the change key CKA rotates forward in the A direction, for example, as shown in FIG.
The cylinder plug 52 is rotated with respect to the cylinder body 51 by the change key CKA, and the constrain balls 97 arranged in the respective constraining columns 12, 14, and 20 are not rotated together with the cylinder plug 52, and the body of the cylinder body 51 is rotated. Left in hole 25.
As the cylinder plug 52 rotates, the ball storage holes 41 to 46 of the cylinder plug 52 face the body holes 25 of the respective const columns 12 to 14 and 19 to 21.
Thereby, the constrained balls 97 in the body holes 25 of the respective const columns 12, 14, and 20 are stored in the ball storage holes 41, 43, and 45 from the body holes 25.
When the change key CKA is reversely rotated and pulled out from the key hole 55 of the cylinder lock SA, as shown in FIGS. 57 and 58, the constrained ball 97 remains stored in the ball storage holes 41, 43, 45. Thus, in each of the const columns 12, 14, and 20, the second upper pin 96 is inserted (arranged) from the body hole 26 into the plug hole 26 by the spring force (biasing force) of the second pin spring 98.
The pin front end surface 96A of the second upper pin 96 is in contact with the pin rear end surface 95B of the second lower pin 95, as shown in FIGS. The portions of the second lower pin 95 and the second upper pin 96 that are in contact with each other serve as a boundary between the second lower pin 95 and the second upper pin 95 (the same applies hereinafter).
In this way, the change key CKB is inserted into the keyhole 55 of the cylinder lock SA, the cylinder plug 52 is rotated, and the constrain balls 97 of the second pin groups PB are respectively corresponding to the constrain columns 12, 14, and 20. By storing in the storage holes 41, 43, 45, the construction device Y1 is released from the constrain.

After the completion of the construction, the change key CKB is inserted into the key hole 55 from the key insertion port 54 of the cylinder lock SB as shown in FIGS. 59 to 61 for releasing the cost of the cylinder lock SB (construction device YB). The dimple portions D13, D19, D21 are arranged corresponding to the second pin groups PB of the respective const columns 13, 19, 21, and the dimple holes D12, D14, D20 (first dimple holes) are arranged in the respective const columns 12, 14 and 20 are arranged corresponding to the first pin group PA.
Further, the change key CKB includes non-dimple portions D9, D17, D18 corresponding to the fourth and fifth pin groups P4, P5 of the master columns 9, 17, 18, and the dimple holes D10, D11, D16 is arranged corresponding to the third and fourth pin groups P4 of the master columns 10, 11, 16 respectively.
Further, the change key CKB arranges each non-dimple portion D4 and each dimple hole D1 to D3 corresponding to the sixth to eighth pin groups P6 to P8 of the fixed columns 1 to 4, respectively.

As shown in FIGS. 59 and 60, the change key CKB is inserted into the keyhole 55 of the cylinder lock SB by the non-dimple portions D13, D19, D21 and the second lower pins 95 of the respective const columns 13, 19, 21. (Second pin group PB) is pushed and moved against the second pin spring 98 to position (insert) the constrain ball 97 into the body hole 25, and the pin rear end face 95B (second upper pin) of the second lower pin 95 The end surface on the 96 side is positioned (arranged) between the cylinder body 51 and the cylinder plug 52.
Further, the change key CKB pushes and moves the first lower pin 91 (first pin group PA ) through each of the dimple holes D12, D14, D20 (first dimple hole) as the key hole 55 of the cylinder lock SB is inserted. Without being held, the boundary between the first lower pin 91 and the first upper pin 92 remains positioned (arranged) between the cylinder body 51 and the cylinder plug 52 (the same state as described in FIGS. 46 and 47) Hold on).

As shown in FIG. 59, the change key CKB causes the fifth lower pin 68 (fifth pin group P5) to move to the fifth pin spring by the non-dimple portions D9 and D18 as the key hole 55 of the cylinder lock SB is inserted. By pushing against 70, the conical surface on the pin tip surface side of the fifth upper pin 69 is positioned (arranged) between the cylinder body 51 and the cylinder plug 52.
Further, the change key CKB pushes and moves the fourth lower pin 64 (fourth pin group P4) against the fourth pin spring 67 by the non-dimple portion D17 with the insertion of the key hole 55 of the cylinder lock SB. 4 The boundary between the lower pin 64 and the MK pin 66 is positioned (arranged) between the cylinder body 51 and the cylinder plug 51. At this time, the MK pin 66 is housed in the body hole 25 of the master column 17.
As the change key CKB is inserted into the key hole 55 of the cylinder lock SB, the third lower pin 61 (third pin group P3) is pushed against the third pin spring 63 by the dimple hole D10 to move to the third upper pin. The conical surface on the pin tip surface side of the pin 62 is positioned (arranged) between the cylinder body 51 and the cylinder plug 52.
In accordance with the insertion of the key hole 55 of the cylinder lock SB, the change key CKB pushes and moves the fourth lower pin 64 of each master column 11, 16 against the fourth pin spring 67 through each dimple hole D 11, D 16, 4 The boundary between the upper pin 65 and the MK pin 66 is positioned (arranged) between the cylinder body 51 and the cylinder plug 52. At this time, the MK pin 66 is housed in the plug hole 26 of each master column 11, 16.

  As shown in FIG. 61, the change key CKB is provided with the sixth to eighth of the fixed columns 1 to 4 by the non-dimple portion D4 and the respective dimple holes D1 to D3 in accordance with the insertion of the key hole 66 of the cylinder lock SB. The lower pins 71, 74, 77 are pushed and moved so that the boundary between the sixth to eighth lower pins 71, 74, 77 and the sixth to eighth upper pins 72, 74, 78 is between the cylinder body 51 and the cylinder plug 52. Position (place).

  Accordingly, in the cylinder lock SB, the construction device YB and the master device ZB can operate the corresponding cylinder lock SB with the change key CKB, and the cylinder plug 52 can be rotated with the change key CKB.

In releasing the construction of the construction device YB, the change key CKB rotates forward, for example, in the A direction as shown in FIG.
The cylinder plug 52 is rotated with respect to the cylinder body 51 by the change key CKB, and the constrain balls 97 disposed in the body holes 25 of the respective const columns 13, 19, and 21 are not rotated together with the cylinder plug 52. It is left in the body hole 25 of the body 51.
As the cylinder plug 52 rotates, the ball storage holes 41 to 46 of the cylinder plug 52 face the body holes 25 of the respective const columns 12 to 14 and 19 to 21.
Thereby, the constrained ball 97 in the body hole 25 is stored in the ball storage holes 42, 44 and 46 from the body hole 25.
When the change key CKB is rotated in the reverse direction and removed from the key hole 55 of the cylinder lock SB, as shown in FIGS. 62 and 63, the constrained ball 97 remains stored in the ball storage holes 42, 44, 46. Thus, in each of the constant columns 13, 19, 21, the second upper pin 96 is inserted (arranged) from the body hole 25 into the plug hole 26 by the spring force (biasing force) of the second pin spring 98. The pin front end surface 96A of the second upper pin 96 is in contact with the pin rear end surface 95B of the second lower pin 95 as shown in FIGS.
In this way, the change key CKB is inserted into the key hole 55 of the cylinder lock SB, the cylinder plug 52 is rotated, and the constrain balls 97 of the second pin groups P2 are connected to the respective constraining columns 13, 19, and 21. By storing in the storage holes 42, 44, 46, the construction of the construction device YB is released.

When the construction master key MK2 is inserted into the keyhole 55 of the cylinder lock SA after releasing the construction of the cylinder lock SA (construction device YA), the construction master key MK2 is placed in the keyhole 55 as shown in FIG. In the same manner as described with reference to FIGS. 51 and 52 without corresponding to the first and second pin groups PA and PB of the columns 12 to 14 and 19 to 21, the master device YA (each master column 9 to 11, 16 to 19 corresponding to 19th 3rd-5th pin group P3-P5).
With the release of the cylinder lock SA (construction device YA), the second upper pin 96 of each of the construction columns 12, 14, 20 is connected to the body hole 25 and the plug hole 26 in the same manner as described with reference to FIGS. Remain in place (arranged).
It should be noted that the construction master key MK2 shows the third to sixth pin groups P3 to P5 of the master columns 9 to 11 and 16 to 18 as the key hole 55 of the cylinder lock SA is inserted. Position (arrange) in the same state as described in 51.
Further, the construction master key MK2 positions the sixth to eighth pin groups P6 to P8 of the fixing columns 1 to 4 in the same state as described with reference to FIG. 52 as the key hole 55 of the cylinder lock SA is inserted. (Deploy.
Thereby, the construction device YA of the cylinder lock SA disables the operation of the cylinder lock SA with the construction master key MK2 after the cancellation of the construction. As shown in FIG. 64, the cylinder plug 52 cannot be rotated by the second upper pin 96 disposed over the body hole 25 and the plug hole 26 of each of the const columns 12, 14, 20.

When the construction master key MK2 is inserted into the keyhole 55 of the cylinder lock SB after releasing the construction of the cylinder lock SB (construction device YB), the construction master key MK2 is placed in all the constructions in the keyhole 55 as shown in FIG. Without corresponding to the first and second pin groups PA and PB of the columns 12 to 14 and 19 to 21, the master device YA (the first number of the master columns 9 to 11 and 16 to 19 is the same as described in FIG. 53). 3 to 5 pin groups P3 to P5).
With the release of the cylinder lock SB (construction device YB), the second upper pin 96 of each of the construction columns 13, 19, and 21 is connected to the body hole 25 and the plug hole 26 in the same manner as described with reference to FIGS. Remain in place (arranged).
Note that the construction master key MK2 shows the third to sixth pin groups P3 to P5 of the master columns 9 to 11 and 16 to 18 in accordance with the insertion of the key hole 55 of the cylinder lock SB. Positioned (arranged) in the same state as described in FIG.
Further, the construction master key MK2 positions the sixth to eighth pin groups P6 to P8 of the fixed columns 1 to 4 in the same state as described with reference to FIG. 52 as the key hole 55 of the cylinder lock SB is inserted. (Deploy.
Thereby, the construction device YB of the cylinder lock SB disables the operation of the cylinder lock SB with the construction master key MK2 after the cancellation of the construction. As shown in FIG. 65, the cylinder plug 52 cannot be rotated by the second upper pin 96 disposed over the body hole 25 and the plug hole 26 of each of the const columns 13, 19, and 21.

When the change key CKA is inserted into the key hole 55 of the cylinder lock SA after the construction of the cylinder lock SA (construction device YA) is released, the change key CKA is moved by the non-dimple portions C12, C14, C20 as shown in FIG. The second lower pins 95 (second pin group PB) of the const columns 12, 14, and 20 are pushed and moved against the second pin spring 98, and the boundary between the second lower pin 95 and the second upper pin 96 is moved to the cylinder body. Position (arrangement) between 51 and the cylinder plug 52.
The change key CKA is held without pushing and moving the first lower pin 91 (first pin group P1) by the respective dimple holes D13, D19, D21 (first dimple holes) as the key hole 55 of the cylinder lock SA is inserted. Thus, the boundary between the first lower pin 91 and the second lower pin 92 is left positioned (arranged) between the cylinder body 51 and the cylinder plug 52 (described in FIGS. 41, 42, 44 and 45). To keep the same state).

As shown in FIG. 66, the change key CKA moves the third to sixth pin groups P3 to P6 of the master columns 9 to 11 and 16 to 18 in accordance with the insertion of the key hole 55 of the cylinder lock SA. 54 and FIG. 55, it is located (arranged) in the same state.
Furthermore, the change key CKA positions the sixth to eighth pin groups P6 to P8 of the fixed columns 1 to 4 in the same state as described with reference to FIG. 56 as the key hole 55 of the cylinder lock SA is inserted ( Deploy.
Accordingly, in the cylinder lock SA, the construction device YA and the master device ZA can operate (lock or unlock) the corresponding cylinder lock SA with the change key CKA, and the cylinder plug 52 of the cylinder lock SA can be changed. It is rotated by the key CKA.

When the change key CKB is inserted into the keyhole 55 of the cylinder lock SB after releasing the constrain of the cylinder lock SB (construction device YB), the change key CKB is moved by the non-dimple portions C13, C19, C21 as shown in FIG. The second lower pins 95 (second pin group PB) of the const columns 13, 19, and 21 are pushed against the second pin spring 98, and the boundary between the second lower pin 95 and the second upper pin 96 is moved to the cylinder body. Position (arrangement) between 51 and the cylinder plug 52.
As shown in FIG. 67, the change key CKB has a first lower pin 91 (first pin group P1) through the dimple holes D12, D14, and D20 (first dimple holes) as the key hole 55 of the cylinder lock SB is inserted. ) Without pushing and moving, the boundary between the first lower pin 91 and the second lower pin 92 remains positioned (arranged) between the cylinder body 51 and the cylinder plug 52 (described in FIGS. 46 and 47). Keep it in the same state as).

In addition, as shown in FIG. 67, the change key CKB moves the third to sixth pin groups P3 to P6 of the master columns 9 to 11 and 16 to 18 in accordance with the insertion of the key hole 55 of the cylinder lock SA. 59 (positioned) in the same state as described in FIG.
Furthermore, the change key CKB moves the sixth to eighth pin groups P6 to P8 of the fixed columns 1 to 4 in the same state as described with reference to FIG. 61 as the key hole 55 of the cylinder lock SA is inserted ( Deploy.
Thereby, in the cylinder lock SB, the construction device YB and the master device ZB can operate (lock or unlock) the corresponding cylinder lock SB with the change key CKB, and the cylinder plug 52 of the cylinder lock SB can be changed. It is rotated by the key CKB.

When the change key CKB is inserted into the key hole 55 of the cylinder lock SA after the cylinder lock SA (construction device YA) is released, the change key CKB is moved by the non-dimple portions D13, D19, D21 as shown in FIG. The first lower pins 91 (first pin group PA) of the respective const columns 13, 19, 21 are pushed and moved against the first pin springs 93 and positioned (arranged) in the body hole 25 and the plug hole 26.
The change key CKB is held by the dimple holes D12, D14, D20 (first dimple holes) without pushing and moving the second lower pins 95 (second pin group PB) of the respective const columns 12, 14, 20; The second upper pin 96 is positioned (arranged) over the body hole 25 and the plug hole 26.

As shown in FIG. 68, the change key CKB is inserted into the third lower pin 61 of each master column 9, 17, 18 by the non-dimple portions D9, D17, D18 as the key hole 55 of the cylinder lock SA is inserted. The (third pin group P3) is pushed against the third pin spring 63 and positioned (arranged) in the body hole 25 and the plug hole 26.
The change key CKB pushes the fifth lower pin 68 (fifth pin group P5) of the master column 11 against the fifth pin spring 70 through the dimple hole D11 with the insertion of the key hole 55 of the cylinder lock SA, The conical surface on the pin tip surface side of the fifth upper pin 69 is positioned (arranged) over the body hole 25 and the plug hole 26.
Further, the change key CKB pushes the fourth lower pin 64 (fourth pin group P4) of the master column 10 against the fourth pin spring 67 by the dimple hole 10 as the key hole 55 of the cylinder lock SA is inserted. Then, the MK pin 66 is positioned (arranged) over the body hole 25 and the plug hole 26 of the master column 10.
As the change key CKB is inserted into the key hole 55 of the cylinder lock S1, the sixth to eighth pin groups P6 to P8 of the fixed columns 1 to 7 are positioned in the same state as described in FIG. Deploy.

  Thereby, in the cylinder lock SA, the construction device YA and the master device ZA prohibit the operation (locking or unlocking) of the cylinder lock SA by the change key CKB other than the change key CKA corresponding to the cylinder lock SA. The master device ZA of the cylinder lock SA rotates the cylinder plug 52 by a third lower pin 61 (third pin group P3) disposed over the body hole 25 and the plug hole 26 of each master column 9, 17, and 18. Ban.

When the change key CKA is inserted into the key hole 55 of the cylinder lock SB after the cylinder lock SB (construction device YB) is released, the change key CKA is moved by the non-dimple portions D12, D14, D20 as shown in FIG. The first lower pins 91 (first pin group PA) of the respective const columns 12, 14, and 20 are pushed against the first pin springs 93 and positioned (arranged) in the body hole 25 and the plug hole 26.
The change key CKB is held by the dimple holes D13, D19, D21 (first dimple holes) without pushing the second lower pins 95 (second pin group PB) of the respective const columns 13, 19, 21; The second upper pin 96 is positioned (arranged) over the body hole 25 and the plug hole 26.

As shown in FIG. 69, the change key CKA moves the third lower pin 61 (third pin group P3) of the master column 10 by the non-dimple portion C10 in accordance with the insertion of the key hole 55 of the cylinder lock SB. It is pushed against the 3-pin spring 63 and positioned (arranged) over the body hole 25 and the plug hole 26.
As the change key CKA inserts the key hole 55 of the cylinder lock SB, the fourth lower pin 64 (fourth pin group P4) of each master column 11, 17 is resisted against the fourth pin spring 67 by each dimple hole C11, C17. Then, the MK pin 66 is positioned (arranged) over the body hole 25 and the plug hole 26 by pushing.
Further, the change key CKA pushes the fifth lower pin 68 (fifth pin group P5) against the fifth pin spring 70 through the dimple holes C9 and C18 as the key hole 55 of the cylinder lock SB is inserted. The fifth upper pin 69 is positioned (arranged) over the body hole 25 and the plug hole 26.
Note that the change key CKA positions the sixth to eighth pin groups P6 to P8 of the fixed columns 1 to 7 in the same state as described with reference to FIG. 56 as the key hole 55 of the cylinder lock SB is inserted ( Deploy.

  Accordingly, in the cylinder lock SB, the construction device YB and the master device ZB prohibit the operation (locking or unlocking) of the cylinder lock SB by the change key CKA other than the change key CKB corresponding to the cylinder lock SB. The master device ZB of the cylinder lock SB prohibits the rotation of the cylinder plug 52 by a fifth upper pin 69 (fifth pin group P6) disposed over the body hole 25 and the plug hole 26 of each master column 9, 18.

In the construction master device X2, the construction column number n of each construction device YA, YB (each cylinder lock SA, SB) is not limited to the construction column number n = 6 described with reference to FIGS. (N = 3, 4, 5, 6, 7,...)
Further, in each construction device YA, YB (cylinder locks SA, SB), the first pin group PA is housed in one or a plurality of construction columns instead of all the construction columns, and the second pin group PB is the first It is possible to store the pin group PA in the remaining cost columns other than the cost column in which the pin group PA is stored. For example, in FIG. 41, the first pin group PA is housed in the cost columns 12, 13, 20, and 21, and the second pin group PB is housed in the remaining cost columns 14 and 19, and in FIG. One pin group PA is housed in one const column 12, and the second pin group PB is housed in the remaining const columns 13, 14, 19-21.
At this time, as shown in FIG. 50, the construction master key MK2 does not correspond to the first and second pin groups PA and PB of all the construction columns 12 to 14 and 19 to 21, and the master devices ZA and ZB ( Each of the master columns 9 to 11 and 16 to 18 has a key length corresponding to the third to fifth pin groups P3 to P5). Further, the first pin group PA is housed in the constraining column with the boundary between the first lower pin 91 and the first upper pin 92 positioned between the cylinder body 51 and the cylinder plug 52 before the key is inserted. The group PB is housed in the cons column before the key insertion, with the boundary between the constraining ball 97 and the second upper pin 96 positioned between the cylinder body 51 and the cylinder plug 52 .
Thus, even if the storage mode P (hereinafter referred to as “storage mode P”) of the first and second pin groups PA and PB is arbitrarily selected, the construction master key MK2 is used to insert the keyhole of each cylinder lock. Accordingly, the boundary between the first lower pin 91 and the first upper pin 92 (first pin group PA) can be positioned (arranged) between the cylinder body 51 and the cylinder plug 52, and the constrain ball 97 and the second upper pin 96 ( The boundary of the second pin group PB) can be positioned (arranged) between the cylinder body 51 and the cylinder plug 52.
Further, the change key corresponding to each cylinder lock forms each dimple hole (each first dimple hole) and a non-dimple part according to the accommodation mode of the first and second pin groups PA and PB. Specifically, in each change key, the non-dimple portion is formed corresponding to the second pin group PB of the const column, and the dimple hole (first dimple hole) is formed in the first pin group PA of the const column. Form correspondingly.
Thus, in the construction master device X2, each construction device YA, YB has a plurality of three or more construction columns, and each construction column is selected to store the first pin group PA or the second pin group PB. Therefore, the storage mode (storage pattern) P of the first and second pin groups PA and PB for each of the const columns is the nth power of the number of types of the first and second pin groups, where n is the number of const columns. For example, if the first and second pin groups are two types, P = ²ⁿ . 41 and 46, each of the first and second pin groups PA and PB is of one type and the number of constant columns is n = 6. Therefore, the storage mode P = 2 of the first and second pin groups PA and PB. ⁶ = 64.
As a result, in order to operate each cylinder lock, it is necessary to duplicate the number of change keys as the storage mode P of the first and second pin groups PA and PB (FIG. 41 and FIG. Need to duplicate the change key).
Further, there are many hole depths in the first dimple holes C13, C19, C21 (or D12, D14, D20) of the change keys CKA, CKB and the non-dimple parts C12, C14, C20 (or D13, D19, D21). When the second pin group PB is pushed and moved with a step (in FIG. 49 and FIG. 50, two steps of hole depths δ1 and δ3), the number of steps of the hole depth is m and the number of const columns is n. In order to operate each of the cylinder locks SA and SB, it is necessary to duplicate the number of change keys, which is the nth power of the number of steps m (in the construction master device X2 of the second embodiment, the number of steps m = 3 Since the number of constant columns is n = 6, it is necessary to duplicate 3 ⁶ = 729 change keys).
Further, the number of change keys corresponding to the housing mode P of the first and second pin groups PA and PB or the hole depth difference can be manufactured. As shown in FIG. The above-described cylinder locks SA, SB, SC,... And change keys CKA, CKB, CKC,... Corresponding to the cylinder locks SA, SB, SC,.

In the construction master device X2, as shown in FIGS. 50 and 51, the change keys CKA and CKB are located at positions corresponding to the second pin group PB of the construction column at the non-dimple portions C12, C14, C20 (or D13, D19, C21) is formed, but the present invention is not limited to this, and a configuration in which a dimple hole (second dimple hole) is formed at a position corresponding to the second pin group PB of the const column can also be adopted. At this time, in the change keys CKA and CKB, the dimple hole (second dimple hole) corresponding to the second pin group PB is shallower than the dimple hole (first dimple hole) corresponding to the first pin group PA. The depth, for example, the hole depth δ2. Further, the second lower pin 95 of the second pin group PB is lengthened by the hole depth δ2 of each dimple hole (second dimple hole), and the dimple hole (first dimple hole) corresponding to the first pin group PA. The hole depth δ3 is also increased by the hole depth δ2 of each dimple hole (second dimple hole) corresponding to the second pin group PB.
As a result, even if each change key CKA, CKB is inserted into the key hole 55 of the corresponding cylinder lock SA, SB, the constant ball 97 is placed (stored) in the body hole 25, and the pin of the second lower pin 95 The rear end face 95 </ b> B (end face on the second upper pin 96 side) can be positioned (arranged) between the cylinder body 51 and the cylinder plug 52.

In the construction master device X2, each of the master devices YA and YB is configured to store the third to fifth pin groups P3 to P5 in the respective master columns 9 to 11 and 16 to 18.
Third pin group P3 is 51, 53, as shown in FIG. 54 and FIG. 59, the dimple holes M 17, C9, C18 of the hole depth .delta.3, and dimples holes M18, C17, D10 hole depth of δ2 With these two steps, the conical surface on the pin tip surface side of the third upper pin 63 is positioned (arranged) between the cylinder body 51 and the cylinder plug 52.
As shown in FIGS. 51, 53, 54 and 59, the fourth pin group P4 includes a dimple hole M10, C16, D11 and D18 with a hole depth δ3 and non-dimple parts M6, C10 and D17 . The boundary between the fourth lower pin 64 and the MK pin 66 or the boundary between the fourth upper pin 65 and the MK pin 66 is positioned (arranged) between the cylinder body 51 and the cylinder plug 52 by the two steps of the depth δ1.
The fifth pin group P5 is 51, 53, as shown in FIG. 54 and FIG. 59, the second dimple holes M11, C11 of hole depth .delta.2, and non-dimple M11, D11, D18 of the hole depth δ1 Due to the step, the conical surface on the pin tip surface side of the fifth upper pin 69 is positioned (arranged) between the cylinder body 51 and the cylinder plug 52.
Therefore, in the construction master key MK2, the dimple holes M9, M10, M17, M18 corresponding to the master columns 9-11, 16-18 of the master devices ZA, ZB and the non-dimple portions M11, M16 are used as a reference. By appropriately selecting the third to fifth pin groups P3 to P5 housed in each master column, the construction master device X2 can also be operated by a plurality of cylinder locks SA, SB, , And change keys CKA, CKB, CKC,... Corresponding to the cylinder locks SA, SB, SC,.
At this time, during the construction period, the manner in which the third to third pin groups P3 to P5 are stored in each master column is selected so that the cylinder locks SA, SB, SC,... Can be operated by the construction master key MK2. , And change keys CKA, CKB, CKC,..., And the third to fifth pin groups of each master column so that the cylinder plug 52 can be rotated in the corresponding cylinder locks SA, SB, SC,. Corresponding to P3 to P5, a dimple hole having hole depths δ2 and δ3 and a non-dimple portion having a hole depth δ1 (δ1 = 0) are formed.

  The present invention makes it difficult for a construction master key to be duplicated by assuming a change key (join key), and is optimal for a construction master device having crime prevention.

X1 construction master device S1 cylinder lock S2 cylinder lock Y1 construction device Y2 construction device Z1 master device Z2 master device P1 first pin group P2 second pin group MK1 construction master key SK1 long groove SK2 long groove CK1 change key C12 non-dimple part C14 non-dimple part Part C20 Non-dimple part C13 Dimple hole (first dimple hole)
C19 Dimple hole (first dimple hole)
C21 dimple hole (first dimple hole)
CK2 Change key D13 Non-dimple part D19 Non-dimple part D21 Non-dimple part D12 Dimple hole (first dimple hole)
D14 Dimple hole (first dimple hole)
D20 Dimple hole (first dimple hole)
25 Bolt hole 26 Plug hole 31 First lower pin 32 First upper pin 35 Second lower pin 36 Second upper pin 41 to 46 Ball storage hole 37 Const ball 51 Cylinder cylinder 52 Cylinder plug 54 Key insertion port 55 Key hole

Claims (2)

A plurality of cylinder locks having a cylinder plug and a cylinder plug that has a key hole that is continuous with the key insertion port and that is rotatably disposed in the cylinder cylinder;
Construction master key inserted into the keyhole of each cylinder lock from the key insertion port,
A change key provided corresponding to each cylinder lock, and inserted into the corresponding keyhole of the cylinder lock from the key insertion port;
Each cylinder lock is arranged on the key insertion opening side of each cylinder lock and is provided in each cylinder lock. The cylinder plug can be rotated by the construction master key and a change key corresponding to each cylinder lock. A master device that prohibits rotation of the cylinder plug by a change key other than that corresponding to
The master device is disposed between the key insertion slot and a construction device provided in each cylinder lock, and
During the construction period, each cylinder lock is operated with the construction master key, and after the construction is completed, the construction device for the corresponding cylinder lock is operated with each change key, and the operation with the construction master key is impossible. A construction master device,
The construction device comprises:
A plurality of constraining columns of three or more constituted by a plug hole that penetrates the cylinder plug in a radial direction and opens in the key hole, and a cylinder hole that penetrates the cylinder cylinder in a radial direction continuously to the plug hole;
A first pin group having a first lower pin slidably disposed in the plug hole, and a first upper pin slidably disposed in the body hole and biased by the first lower pin;
A second lower pin slidably disposed in the plug hole; a second upper pin slidably disposed in the body hole and biased by the second lower pin; the second lower pin; A second pin group having a constraining ball assembled between two upper pins;
A ball storage hole formed in the cylinder plug corresponding to each of the constant columns, and capable of storing the constant ball.
The first pin group is housed in one or a plurality of const columns instead of all the const columns, and the second pin group is housed in the remaining const columns other than the const column that houses the first pin group,
The construction master key is
Each of the cylinder locks has a long groove formed corresponding to the first and second pin groups of the constant column,
As the key hole of each cylinder lock is inserted, the first lower pin is pushed and moved by the long groove so that the boundary between the first lower pin and the first upper pin is positioned between the cylinder body and the cylinder plug. And
As the key hole of each cylinder lock is inserted, the second lower pin is pushed and moved by the long groove, and the boundary between the constant ball and the second upper pin is located between the cylinder body and the cylinder plug,
Each change key is
In the corresponding cylinder lock,
A first dimple hole formed corresponding to the first pin group of the const column and having the same hole depth as the long groove;
A non-dimple portion formed corresponding to the second pin group of the const column or a second dimple hole having a hole depth shallower than the long groove;
In association with the insertion of the corresponding keyhole of the cylinder lock, the first lower pin is pushed and moved by the first dimple hole, and the boundary between the first lower pin and the first upper pin is defined as the cylinder body and the cylinder. Located between the plugs,
As the corresponding keyhole of the cylinder lock is inserted, the second lower pin is pushed and moved by the non-dimple part or the second dimple hole, and the constrain ball is disposed in the body hole, and the second lower pin The construction master device, wherein an end face of the pin on the second upper pin side is located between the cylinder body and the cylinder plug. A plurality of cylinder locks having a cylinder plug and a cylinder plug that has a key hole that is continuous with the key insertion port and that is rotatably disposed in the cylinder cylinder;
Construction master key inserted into the keyhole of each cylinder lock from the key insertion port,
A change key provided corresponding to each cylinder lock, and inserted into the corresponding keyhole of the cylinder lock from the key insertion port;
Each cylinder lock is arranged on the key insertion opening side of each cylinder lock and is provided in each cylinder lock. The cylinder plug can be rotated by the construction master key and a change key corresponding to each cylinder lock. A master device that prohibits rotation of the cylinder plug by a change key other than that corresponding to
The master device is disposed between the key insertion slot and a construction device provided in each cylinder lock, and
During the construction period, each cylinder lock is operated with the construction master key, and after the construction is completed, the construction device for the corresponding cylinder lock is operated with each change key, and the operation with the construction master key is impossible. A construction master device,
The construction device comprises:
A plurality of constraining columns of three or more constituted by a plug hole that penetrates the cylinder plug in a radial direction and opens in the key hole, and a cylinder hole that penetrates the cylinder cylinder in a radial direction continuously to the plug hole;
A first pin group having a first lower pin slidably disposed in the plug hole, and a first upper pin slidably disposed in the body hole and biased by the first lower pin;
A second lower pin slidably disposed in the plug hole; a second upper pin slidably disposed in the body hole and biased by the second lower pin; the second lower pin; A second pin group having a constraining ball assembled between two upper pins;
A ball storage hole formed in the cylinder plug corresponding to each of the constant columns, and capable of storing the constant ball.
The first pin group is housed in one or a plurality of const columns instead of all the const columns, and the second pin group is housed in the remaining const columns other than the const column that houses the first pin group,
The first pin group is housed in the const column before the key insertion, with the boundary between the first lower pin and the first upper pin positioned between the cylinder body and the cylinder plug,
The second pin group is housed in the const column before the key insertion, with the boundary between the constrain ball and the second upper pin positioned between the cylinder body and the cylinder plug,
The construction master key is
With the insertion of the key hole of each cylinder lock, without corresponding to the first and second pin group of each of the const columns, arranged corresponding to the master device,
Each change key is
In the corresponding cylinder lock,
A first dimple hole formed corresponding to the first pin group of the const column;
A non-dimple portion formed corresponding to the second pin group of the const column, or a second dimple hole having a shallower depth than the first dimple hole,
As the corresponding keyhole of the cylinder lock is inserted, the first lower pin is held by the first dimple hole without being pushed, and the boundary between the first lower pin and the first upper pin is Located between the cylinder and the cylinder plug,
With the insertion of the corresponding keyhole of the cylinder lock, the second lower pin is pushed and moved by the non-dimple portion or the second dimple hole, and the const ball is disposed in the body hole, and the second lower pin The construction master device characterized in that the end face on the second upper pin side is positioned between the cylinder body and the cylinder plug.

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