JP2007177423A - Cylinder lock - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a small, inexpensive and safe cylinder lock, the key code of which can be changed. <P>SOLUTION: In a state in which the cylinder lock 100 can be opened, a part of a side bar 151-1 is fitted into the recesses of tumbler plates 133-1 to 133-5, and a part of a side bar 151-2 is fitted into the recesses of tumbler plates 133-21 to 133-25, so that an inner-periphery cylinder 103 can be rotated. Each of opening/closing plates 131-21 to 131-25 and the tumbler plates 133-21 to 133-25 is provided in a position line-symmetric to the opening/closing plates 131-1 to 131-5 and the tumbler plates 133-1 to 133-5 in the central position of a keyhole 103a. The key code is determined by determining the vertical position, shown in Fig., of each of the opening/closing plates and that of each of tumbler plates. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a cylinder lock, and relates to a cylinder lock that is a small and inexpensive cylinder lock that can change a key code and that can provide a safe and small cylinder lock.

  Cylinder locks are used in gaming machines in game halls, so-called pachinko parlors in pachinko parlors, to prevent unauthorized operation by a third party. On the other hand, in order to allow the gaming hall side to easily manage gaming machines, in one gaming hall, one key locks or unlocks (unlocks) the cylinder lock provided in each gaming machine. ) It is required to be able to.

  If the key of the cylinder lock is lost, or a wrong key is created, or if there is a risk of unauthorized unlocking, the cylinder lock must be replaced with something that can be locked or unlocked with another key. There wasn't. In this case, if a large number of new cylinder locks that can be locked or unlocked with one key are prepared, a large amount of cost is required. Also, it took time and effort to replace the cylinder lock.

  Further, when a gaming machine is newly purchased, it is necessary that the cylinder lock provided in the gaming machine can be locked or unlocked (unlocked) with a key that has already been used.

For this reason, the cylinder lock which can change freely the key which can be locked or unlocked is proposed (for example, refer to patent documents 1).
JP 2005-232800 A

  By the way, as the importance of security is recognized in recent years, there is an increasing need to increase the key code of a key. For example, in the case of the cylinder lock of Patent Document 1, the number of key codes that can be set for the cylinder lock can be increased by increasing the number of opening and closing plates and tumbler plates that move in contact with the key positioning surface. .

  However, while strengthening security is important, it is also important to reduce the size and thickness of devices such as gaming machines. In the conventional cylinder lock, the open / close plate and the tumbler plate are arranged in a line in the depth direction of the cylinder lock. Therefore, if the number of settable key codes is increased, the open / close plate and the tumbler plate are connected to the cylinder lock. It is necessary to further add to the depth of the lock, and the length of the cylinder lock in the depth direction is further increased. As a result, it is difficult to reduce the size and thickness of a device such as a gaming machine to which such a cylinder lock is attached.

  The present invention has been made in view of such a situation, and is a small and inexpensive cylinder lock capable of changing a key code, and is intended to provide a safe and small cylinder lock.

  In the first cylinder lock according to the present invention, the position of the part changes in accordance with the key code by contacting the part corresponding to the key code provided on the first surface of the insertion part of the key inserted into the cylinder. A first opening / closing plate that is moved to a first position in a first direction, and a position that is a line target at the center of the keyhole into which the key is inserted, A second opening / closing plate that is moved to a second position in a first direction that is a direction in which the position of the part changes according to the key code by contacting the part corresponding to the key code provided on the surface; A first tumbler plate that is orthogonal to the first direction and parallel to the key insertion direction in a second direction so that the position can be moved to the third position or the fourth position; and the key is inserted Will be the target of the line at the center of the keyhole A second tumbler plate provided in a position, perpendicular to the first direction and parallel to the key insertion direction, wherein the second tumbler plate is movable to the fifth position or the sixth position; The first sidebar for moving the first tumbler plate to the third position or the fourth position in the second direction according to the rotational position of the cylinder, and the second tumbler plate for the cylinder A second sidebar that moves to a fifth position or a sixth position in the second direction according to the rotation position, and each of the first tumbler plate and the second tumbler plate includes a second sidebar. Of the plurality of positioning portions arranged in the first direction provided on each of the first opening and closing plate and the second opening and closing plate, respectively. One positioning part and one part of it engage Accordingly, the position is moved to the seventh position and the eighth position in the first direction determined by the position of the engaging positioning portion and the first and second positions, and the seventh and eighth positions in the first direction are moved. The operation of locking or unlocking by restricting the movement of the first sidebar and the second sidebar in the first direction and the third direction orthogonal to the second direction depending on the eighth position When the first position is moved to the fourth position and the sixth position in the second direction, the engagement between a part of itself and the positioning part provided on the opening / closing plate is released, and the first position Each of the opening / closing plate and the second opening / closing plate has a surface corresponding to the key code of the inserted key by contacting the portion corresponding to the key code of the inserted key when the key is inserted. It is a fixed position, and among a plurality of positioning parts, It is moved to a position in a first direction where one positioning part and a part of itself can be engaged.

  In the first cylinder lock of the present invention, when each of the first tumbler plate and the second tumbler plate has moved to the third position and the fifth position in the second direction, One of the plurality of positioning parts arranged in the first direction provided on each of the opening and closing plates and the second opening and closing plate is engaged with one part of the positioning parts to engage with each other. Are moved to the seventh position and the eighth position in the first direction determined by the position of the positioning portion and the first and second positions, and according to the seventh and eighth positions in the first direction, The operation of locking or unlocking is determined by restricting the movement of the first sidebar and the second sidebar in the first direction and the third direction orthogonal to the second direction, When moving to the fourth and sixth positions in the direction of The engagement between a part of itself and the positioning portion provided on the opening / closing plate is released, and each of the first opening / closing plate and the second opening / closing plate It is a position determined by the surface corresponding to the key code of the inserted key by abutting on the part corresponding to the key code, and one positioning part and a part of one of the plurality of positioning parts are It is moved to a position in a first direction that can be engaged.

  Therefore, the key code can be increased without changing the size of the cylinder lock.

  The first opening / closing plate and the first tumbler plate, and the second opening / closing plate and the second tumbler plate may be engaged by holes and pins, respectively.

  Therefore, a highly durable cylinder lock can be formed at low cost.

  The key code of the key may be specified by the shape of a groove provided on each of the left and right sides of the key insertion portion in the key insertion direction.

  The key code of the key is a surface of a protrusion provided on both the left and right sides in the key insertion direction in the key insertion portion, and is specified by the shape of the upper surface in the key insertion direction. Can be.

  Therefore, the key can be made reversible.

  In the second cylinder lock of the present invention, the position of the part changes in accordance with the key code by contacting the part corresponding to the key code provided on the first surface of the insertion part of the key inserted into the cylinder. A first opening / closing plate that is moved to a first position in the first direction, and a point target position at the center of the keyhole into which the key is inserted, and a second insertion portion of the key insertion portion. A second opening / closing plate that is moved to a second position in a first direction that is a direction in which the position of the part changes according to the key code by contacting the part corresponding to the key code provided on the surface; A first tumbler plate that is orthogonal to the first direction and parallel to the key insertion direction in a second direction so that the position can be moved to the third position or the fourth position; and the key is inserted Position to be pointed at the center of the keyhole A second tumbler plate provided in a second direction perpendicular to the first direction and parallel to the direction of key insertion, the second tumbler plate being movable to the fifth position or the sixth position; A first sidebar that moves one tumbler plate to a third position or a fourth position in the second direction according to the rotation position of the cylinder, and the second tumbler plate that rotates the cylinder A second sidebar that moves to a fifth position or a sixth position in a second direction, depending on the position, each of the first tumbler plate and the second tumbler plate having a second direction Of the plurality of positioning portions arranged in the first direction provided on each of the first opening / closing plate and the second opening / closing plate when moving to the third position and the fifth position. One positioning part and one part of it Are moved to the seventh position and the eighth position in the first direction determined by the position of the engaging positioning portion and the first and second positions, and the seventh and eighth positions in the first direction are moved. The operation of locking or unlocking by restricting the movement of the first sidebar and the second sidebar in the first direction and the third direction orthogonal to the second direction by the position of 8 When it is determined and moved to the fourth position and the sixth position in the second direction, the engagement between the part of itself and the positioning part provided on the opening / closing plate is released, and the first part Each of the opening / closing plate and the second opening / closing plate is determined by a surface corresponding to the key code of the inserted key by contacting the portion corresponding to the key code of the inserted key when the key is inserted. A position, one of a plurality of positioning portions Are moved to a position in a first direction in which the positioning portion and a part of the positioning portion can be engaged with each other.

  In the second cylinder lock of the present invention, when each of the first tumbler plate and the second tumbler plate has moved to the third position and the fifth position in the second direction, One of the plurality of positioning parts arranged in the first direction provided on each of the opening and closing plates and the second opening and closing plate is engaged with one part of the positioning parts to engage with each other. Are moved to the seventh position and the eighth position in the first direction determined by the position of the positioning portion and the first and second positions, and according to the seventh and eighth positions in the first direction, The operation of locking or unlocking is determined by restricting the movement of the first sidebar and the second sidebar in the first direction and the third direction orthogonal to the second direction, When moving to the fourth and sixth positions in the direction of The engagement between a part of itself and the positioning portion provided on the opening / closing plate is released, and each of the first opening / closing plate and the second opening / closing plate It is a position determined by the surface corresponding to the key code of the inserted key by abutting on the part corresponding to the key code, and one positioning part and a part of one of the plurality of positioning parts are It is moved to a position in a first direction that can be engaged.

  Therefore, the key code can be increased without changing the size of the cylinder lock.

  The first opening / closing plate and the first tumbler plate, and the second opening / closing plate and the second tumbler plate can be engaged by holes and pins, respectively.

  Therefore, a highly durable cylinder lock can be formed at low cost.

  The key code of the key can be specified by the shape of the groove provided on each of the upper and lower surfaces in the key insertion portion in the key insertion direction.

  Accordingly, key compatibility with the conventional cylinder lock can be realized.

  According to the present invention, a cylinder lock can be provided. In particular, it is possible to provide a small and inexpensive cylinder lock that can change the key code and that is safe and small.

  Embodiments of the present invention will be described below with reference to the drawings.

  1 and 2 show an example of the appearance of a cylinder lock 100 to which the present invention is applied. FIG. 1 is a perspective view of the external appearance of the cylinder lock 100 on the front end side. FIG. 2 is a perspective view of the appearance of the rear end side of the cylinder lock 100.

  Inside the outer peripheral cylinder 101 of the cylinder lock 100, an inner peripheral cylinder 103 that rotates together with the key when a regular key is inserted is provided. In a state where the inner peripheral cylinder 103 is disposed inside the outer peripheral cylinder 101, a key hole 103a provided in the inner peripheral cylinder 103 into which a key is inserted is exposed from the outer peripheral cylinder 101 to the outside.

  A switch case 102 is provided at the rear of the outer cylinder 101, and the outer cylinder 101 and the switch case 102 are fixed to each other by screws 105-1 and 105-2 on the opposite side of the screws 105-1. Yes. The switch case 102 is provided with a switch (described later) that generates an electrical signal indicating that the cylinder lock 100 is unlocked when the cylinder lock 100 is unlocked, and a connector provided at the rear of the switch case 102. For example, 102a is connected to a predetermined part of the power supply unit of the gaming machine and supplies an electric signal indicating that the cylinder lock 100 is unlocked to the power supply unit.

  FIG. 3 is a perspective view showing the configuration of the cylinder lock 100. As shown in the figure, the inner peripheral cylinder 103 is configured to be inserted inside the outer peripheral cylinder 101, and is configured to be rotatable inside the outer peripheral cylinder 101. Further, the inner peripheral cylinder 103 has a concave portion in a shape that fits with the convex portion 111a of the ratchet disc 111 at the rear portion (on the side opposite to the keyhole 103a in the drawing), and the ratchet disc 111 is rotated with its own rotation. Rotate.

  The ratchet disk 111 has a disk shape having a predetermined thickness, is configured to be inserted into the switch case 102, and is configured to be rotatable inside the switch case 102. . The ratchet disk 111 has a spring hole provided in the center in a direction penetrating the ratchet disk 111 in the vertical direction in the figure, and a spring 113 is inserted into the spring hole. A ratchet ball 114 is disposed so as to contact the lower end of the spring 113 inserted in the spring hole in the figure. The ratchet ball 114 is configured so that its diameter is substantially the same as the diameter of the spring hole, and is urged by the spring 113 so as to protrude to the outer periphery of the ratchet disk 111.

  The switch case 102 is configured such that a front circumferential end portion 102c abuts against the inner peripheral cylinder 103 and an outer surface thereof abuts against an inner surface of the outer peripheral cylinder 101. Is configured to be attached. And the front-end | tip part 112a of the switch 112 is comprised so that it may be pressed by the convex part of the rear part (opposite side of the convex part 111a in the figure) of the ratchet disk 111 with rotation of the ratchet disk 111. When the tip 112a is pressed to a predetermined position, an electrical signal is output from the connector 102a.

  In addition, control grooves 102d-1 and 102d-2 for controlling the rotation (rotation) position of the ratchet disk 111 are provided in the switch case 102. In addition, a similar control groove 102d-3 is provided at a position that cannot be seen in the figure, and each of the control grooves 102d-1 to 102d-3 gently engages a part of the ratchet ball 114. It consists of shape and depth.

  For example, in the case of FIG. 3, the ratchet ball 114 is in a position to engage with 102d-1, and when the ratchet disk 111 is rotated 90 ° from this state, the ratchet ball 114 is engaged with the control groove 102d-2. Will do. Thus, when the ratchet ball 114 is engaged with the control grooves 102d-1 and 102d-2, the user who unlocks the cylinder lock 100 has a click feeling through the key each time the ratchet disk 111 is rotated. It is configured to be transmitted.

  Although not shown here, a convex portion is provided on the inner surface of the rear portion of the switch case 102, and the convex portion is a convex portion of the rear portion of the ratchet disk 111 (opposite the convex portion 111a in the figure). The rotation of the ratchet disk 111 is stopped by abutting against one surface of the portion.

  FIG. 4 is a perspective view showing the configuration of the inner peripheral cylinder 103. In the same figure, each of the opening / closing plates 131-1 to 131-5 operates so as to enable or suppress the rotation of the inner peripheral cylinder 103 depending on its position with respect to the inner peripheral cylinder 103. The open / close plates 131-1 to 131-5 are engaged with the tumbler plates 133-1 to 133-5 through the engagement holes, respectively.

  For example, an engagement hole 131-1a constituted by three holes is provided in the upper part of the opening / closing plate 131-1 in the figure, and an engagement hole also constituted by three holes in the lower part of the figure. 131-1b is provided. On the other hand, the tumbler plate 133-1 is provided with any one of an engagement pin 133-1b having a diameter that engages with any one of the engagement holes 131-1a and an engagement hole 131-1b. An engagement pin 133-1c having a diameter to be engaged is provided.

  Accordingly, the engagement pin 133-1b and the engagement pin 133-1c are engaged with any one of the engagement hole 131-1a and the engagement hole 131-1b, respectively, and thereby The tumbler plate 133-1 is engaged. Then, when the opening / closing plate 131-1 and the tumbler plate 133-1 are engaged, the positions of the opening / closing plate 131-1 and the tumbler plate 133-1 in the vertical direction in the figure are determined. Here, the vertical direction is a direction orthogonal to the direction in which the key is inserted in the inner cylinder 103, and is indicated by three engagement holes 131-1a or 131-1b in the opening / closing plate 131-1. The direction in which the holes are arranged.

  In this example, the engagement hole 131-1a and the engagement hole 131-1b are each composed of three holes, so that the position of the open / close plate 131-1 and the tumbler plate 133-1 in the vertical direction in the drawing is 3 One of the streets.

Here, although the engagement between the opening / closing plate 131-1 and the tumbler plate 133-1 has been described, the other opening / closing plates and the tumbler plate are also engaged in the same manner as in the case of the opening / closing plate 131-1 and the tumbler plate 133-1. In the cylinder lock 100, the key code is determined by determining the positions of the opening / closing plate and the tumbler plate in the vertical direction in the drawing. That is, by engaging the open / close plates 131-1 to 131-5 and the tumbler plates 133-1 to 133-5, 243 (= 3 ⁵ ) key codes can be set.

  Each of the opening / closing plate springs 132-1 to 132-5 is provided such that one end thereof is in contact with the opening / closing plates 131-1 to 131-5 and the other end is in contact with the spring cover 135. Then, the open / close plates 131-1 to 131-5 are urged so as to contact the positioning surface of the key inserted into the cylinder lock 100.

  The open / close plates 131-21 to 131-25, the tumbler plates 133-21 to 133-25, and the open / close plate springs 132-21 to 132-25 include the open / close plates 131-1 to 131-5 and the tumbler plate 133-, respectively. 1 to 133-5 and the opening and closing plate springs 132-1 to 132-5, and the opening and closing plates 131-1 to 131-5 and the tumbler plate 133 are centered on the key hole 103a of the inner cylinder 103. 1 to 133-5 and the opening / closing plate springs 132-1 to 132-5.

  That is, the open / close plates 131-21 to 131-25, the tumbler plates 133-21 to 133-25, and the open / close plate springs 132-21 to 132-25 are respectively connected to the open / close plates 131-1 to 131-5 and the tumbler plate. 133-1 to 133-5 and the opening / closing plate springs 132-1 to 132-5 and the key hole 103 a are provided at positions that are line-symmetrical. That is, the open / close plates and the tumbler plates on both the left and right sides of the keyhole 103 a of the inner peripheral cylinder 103 are attached to positions that are symmetric with respect to the vertical line segment passing through the rotation axis of the inner peripheral cylinder 103.

Therefore, in the cylinder lock 100, the opening / closing plates 131-1 to 131-5 and the tumbler plates 133-1 to 133-5 are engaged, and the opening / closing plates 131-21 to 131-25 and the tumbler plates 133-21 to By engaging 133-25 respectively, 59049 (= 3 ¹⁰ ) key codes can be set.

  For example, when the opening and closing plate and the tumbler plate are arranged in a line in the depth direction of the cylinder lock as in the conventional cylinder lock, if the key code is increased, the opening and closing plate and the tumbler plate are connected to the cylinder lock. It is necessary to further add to the depth, and as a result, the length of the cylinder lock in the depth direction is further increased. However, in the cylinder lock 100 of the present invention, the opening / closing plates 131-21 to 131-25, the tumbler plate 133 −21 to 133-25 and the open / close plate springs 132-21 to 132-25 are respectively open / close plates 131-1 to 131-5, tumbler plates 133-1 to 133-5, and open / close plate springs 132−. 1 to 132-5 and the center of the keyhole 103a Because attached without changing the size of the cylinder lock (length), it is possible to increase the key code.

  The opening / closing plates 131-1 to 131-5 and 131-21 to 131-25 and the springs for opening / closing plates 132-1 to 132-5 and 131-21 to 131-25 are attached to the center of the inner peripheral cylinder 103, respectively. The tumbler guide 161 is inserted and attached. The tumbler guide 161 is provided on both sides with the key hole 103a as the center, and holes for inserting the opening / closing plate springs 132-1 to 132-5 and 131-21 to 131-25 are provided (10 pieces of 5 pieces on each side). The holes into which the opening / closing plate springs 132-1 to 132-5 are inserted and the holes into which the opening / closing plate springs 132-21 to 132-25 are inserted are respectively in the depth direction of the cylinder lock 100 ( It is provided at a position shifted in the key insertion direction).

  In this way, as will be described later, the length in the depth direction required when the side bars 151-1 and 151-2 move in the key insertion direction (in the case of reset) can be shortened. Become.

  Screws are inserted into the holes 135a and 135b of the spring cover 135, the tumbler guide 161 and the spring cover 135 are fixed, and the spring cover 135 is crimped to the inner peripheral cylinder 103 and fixed.

  The side bar 151-1 is pressed against the inner surface of the outer cylinder 101 by the side bar springs 152-1 and 152-2. The side bar 151-1 or 151-2 is engaged with a recess provided on the inner surface of the outer cylinder 101 or is disengaged, thereby restricting the rotation of the inner cylinder 103 with respect to the outer cylinder 101.

  The side bar 151-1 is configured to be movable in a direction orthogonal to the key insertion direction along a side bar hole provided in the inner peripheral cylinder 103. In a state where the cylinder lock 100 can be unlocked, a part of the side bar 151-1 is a recess 133-1 a to 133-5 a of the tumbler plates 133-1 to 133-5 (only 133-1 a is shown here). The side bar 151-1 moves in a direction orthogonal to the key insertion direction and inward of the cylinder lock 100 (a direction approaching the rotation axis of the inner cylinder 103). As a result, the fitting between the recess provided on the inner surface of the outer cylinder 101 and the side bar 151-1 is released, and the inner cylinder 103 can rotate.

  On the other hand, in the state where the cylinder lock 100 is locked, the side bar 151-1 is in contact with any one of the side surfaces other than the recesses 133-1 a to 133-5 a of the 133-1 to 133-5. -1 is a direction orthogonal to the key insertion direction and cannot move inward of the cylinder lock 100. As a result, the recess provided on the inner surface of the outer cylinder 101 and the side bar 151-1 are fitted. Is not released, and the inner cylinder 103 cannot be rotated.

  The side bar 151-1 is usually in a direction perpendicular to the key insertion direction by the side bar springs 152-1 and 152-2, and on the outer side of the cylinder lock 100, i. It is urged in the direction of fitting with the provided recess.

  The side bar 151-1 is structured to be movable in the key insertion direction along a side bar hole provided in the inner peripheral cylinder 103. In a state where the key code of the cylinder lock 100 is reset, the side bar 151-1 moves in the key insertion direction and moves behind the cylinder lock 100 (on the switch case 102 side). As a result, as the side bar 151-1 moves, the tumbler plates 133-1 to 133-5 also move in the key insertion direction, and the open / close plates 131-1 to 131-5 and the tumbler plates 133-1 to 133-3. The key code is reset by releasing the engagement with 5 respectively.

  The side bar 151-1 is normally biased to the rear side of the cylinder lock 100 (on the switch case 102 side) by the side bar spring 152-3 in the key insertion direction. It moves in the key insertion direction according to the shape of the front and back sides of 101 and the shape of the front end surface of the switch case 102.

  Here, the operation of the side bar 151-1 has been described, but the same operation is performed for the side bar 151-2. However, in the case of the side bar 151-2, the moving direction when the key code of the cylinder lock 100 is reset is different from the case of the side bar 151-1. That is, the side bar 151-2 is normally biased forward of the cylinder lock 100 in the key insertion direction by the side bar spring 152-13, and the key code of the cylinder lock 100 is reset. , The side bar 151-1 moves in the key insertion direction and forward of the cylinder lock 100. As a result, the opening / closing plates 131-21 to 131-25 and the tumbler plates 133-21 to 133-25 The key code is reset by releasing the engagement.

  Next, a key for unlocking or locking the cylinder lock 100 will be described. FIG. 5 is a perspective view showing an appearance of a key 190 for unlocking or locking the cylinder lock 100, and FIG. 6 is a perspective view of the key 190 as viewed from the opposite side of FIG. As shown in FIGS. 5 and 6, grooves 191 a or 191 b are provided on both surfaces of the insertion portion 191 of the key 190. A part of each of the opening / closing plates 131-1 to 131-5 described above is inserted into the groove 191a, and the vertical positions of the opening / closing plates 131-1 to 131-5 are determined according to the shape of the groove 191a. Similarly, a part of each of the open / close plates 131-21 to 131-25 is inserted into the groove 191b, and the vertical positions of the open / close plates 131-1 to 131-5 are determined according to the shape of the groove 191b. .

  This will be described in more detail with reference to FIGS. As shown in FIG. 7, the groove 191b (the same applies to 191a) is configured so that the width in the vertical direction in the figure is wide at the distal end of the insertion portion 191, and the insertion portion 191 is inserted into the keyhole 103a. The protrusion 131-21e of the opening / closing plate 131-21 is inserted into the groove 191b. Then, as the key 190 (insertion portion 191) is inserted deeper, the convex portion 131-21e moves up and down along the shape of the groove 191b while being inserted into the groove 191b. 21 moves up and down.

  8 is a cross-sectional view of the insertion portion 191 in a state where the convex portion 131-21e is at a predetermined position of the groove 191b, and FIG. 9 is an enlarged view of a portion surrounded by a circle in FIG. is there.

  As shown in FIG. 9, the groove 191 b is configured to have a wide width in the vertical direction in the drawing at the distal end portion of the insertion portion 191, but the vertical width in the drawing has a convex portion 131-in the other portions. It is comprised so that it may become substantially equivalent to the width | variety of 21e. Thereby, the convex part 131-21e contacts the up-and-down surface in the figure of the groove | channel 191b, and moves to an up-down direction, and the position of the up-down direction of the opening-and-closing plate 131-21 changes. When the key 190 is completely inserted into the cylinder lock 100, the vertical position of the convex portion 131-21e is determined at a predetermined position set in advance in the groove 191b, and the opening / closing plate 131-21 is attached to the key 190. It will be moved to the position corresponding to the key code.

  Actually, when the key 190 is completely inserted into the cylinder lock 100, the convex portion 131-21e of the opening / closing plate 131-21 is positioned slightly to the right of the position illustrated in the groove 191b. .

  Here, the open / close plate 131-21 has been described as an example, but the open / close plates 131-22 to 131-25 are similarly determined in the vertical direction. Similarly, the vertical positions of the open / close plates 131-1 to 131-5 are determined in the groove 191a on the back side of the groove 191b.

  Thus, in the key 190 for unlocking or locking the cylinder lock 100, the respective shapes of the groove 191a and the groove 191b are key codes.

  Next, a mechanism for unlocking the cylinder lock 100 will be described. FIG. 10 is a view showing the appearance of the cylinder lock 100 in a state where the key is not inserted (that is, in a locked state), and FIG. 11 is a cross-sectional view of the cylinder lock 100 in the plane A of FIG.

  FIG. 12 is an enlarged view of a portion surrounded by a circle A in FIG. 11, and FIG. 13 is an enlarged view of a portion surrounded by a circle B in FIG. As shown in FIG. 12, the tumbler plate 133-21 and the opening / closing plate 131-21 have the engagement pins 133-21b (or the engagement pins 133-21c) as described above and the engagement holes 131-21a (or Engage with the engagement holes 131-21b). Further, as shown in FIG. 13, the tumbler plate 133-1 and the opening / closing plate 131-1 have the engaging pins 133-21b (or the engaging pins 133-21c) as described above, and the engaging holes 131-21a. (Or engagement hole 131-21b).

  FIG. 14 is a front view of the cylinder lock 100 in a state where the key is not inserted (that is, locked), and FIG. 15 shows the cylinder lock 100 in the state of FIG. 14 at a predetermined depth position. It is sectional drawing of the state cut | disconnected.

  As shown in FIG. 15, when the key is not inserted, the opening / closing plate 131-1 or 131-21 is urged downward in the figure by the opening / closing plate spring 132-1 or 132-21. Located on the lower side.

  In this state, the tumbler plate 133-1 or 133-21 whose position is determined with the vertical position of the opening / closing plate spring 132-1 or 132-21 is also located on the lower side, and the tumbler plate 133-1 The concave portion 133-1a does not coincide with the convex portion 151-1a of the side bar 151-1 in the vertical direction in the figure, and the concave portion 133-21a of the tumbler plate 133-21 is not the side bar 151-2. The convex portion 151-2a and the vertical position in the figure do not match.

  Further, in this state, the side bar 151-1 is fitted with the recess 101 d-1 provided on the inner surface of the outer peripheral cylinder 101, and the side bar 151-2 is provided on the inner surface of the outer peripheral cylinder 101. The inner cylinder 103 cannot be rotated.

  As shown in FIG. 16, when a key 190 (a regular key that can unlock the cylinder lock 100) is inserted into the cylinder lock 100, the state of each part inside the cylinder lock 100 is changed from the state shown in FIG. It changes as shown in FIG.

  FIG. 17 is a cross-sectional view of the cylinder lock 100 at the same position in the depth direction as FIG. 15, and is a cross-sectional view when the key 190 is inserted into the cylinder lock 100.

  In this figure, as described above with reference to FIGS. 7 to 9, the protrusions 131-1e or 131-21e of the opening / closing plate are inserted into the grooves 191a or 191b provided on both surfaces of the insertion part 191 of the key 190. It is said that it was in the state. As a result, the tumbler plate 133-1 or 133-21 moves in the vertical direction in the drawing together with the open / close plate 131-1 or 131-21. In this case, compared with the state shown in FIG. 15, the tumbler plate 133-1 or 133-21 is moved upward, and as a result, the recess 133-1a of the tumbler plate 133-1 is moved to the side bar 151. -1 convex portion 151-1a and the vertical position in the drawing coincide with each other, and the concave portion 133-21a of the tumbler plate 133-21 is the same as the convex portion 151-2a of the side bar 151-2 in the vertical direction in the drawing. The position matches.

  Here, only the tumbler plate 133-1 and the tumbler plate 133-21 have been described, but when a regular key is inserted, the tumbler plates 133-2 to 133-5 or the tumbler plates 133-22 to 133-3 25, the concave portions 133-2a to 133-5a or the concave portions 133-22a to 133-25a are formed on the upper and lower sides of the convex portion 151-1a of the side bar 151-1 or the convex portion 151-2a of the side bar 151-2. The direction positions will match. That is, since the key code of the regular key matches the key code set in the cylinder lock 100, the positions of the concave portions of all the tumbler plates are moved so as to match the positions of the convex portions of the side bars.

  In this state, the side bar 151-1 is fitted to the concave parts 133-1a to 133-5a of the tumbler plates 133-1 to 133-5 by fitting the convex parts 151-1a of the side bar 151-1. It is possible to move in the direction orthogonal to the key insertion direction and inward of the cylinder lock 100 (left side in the figure). Further, by inserting the convex portion 151-2a of the side bar 151-2 into the concave portions 133-21a to 133-25a of the tumbler plates 133-21 to 133-25, the side bar 151-2 is inserted in the key insertion direction. It is possible to move the cylinder lock 100 in the inner direction (right side in the figure).

  When the key 190 is rotated as shown in FIG. 18 from the state shown in FIG. 16, the state of each part inside the cylinder lock 100 changes from the state shown in FIG. 17 as shown in FIG. .

  FIG. 19 is a cross-sectional view of the cylinder lock 100 at the same predetermined depth direction position as FIG. 17 (or FIG. 15), and is a cross-sectional view when the key 190 is rotated. When the regular key is inserted, as described above, the positions of the concave portions of all the tumbler plates are moved so as to coincide with the positions of the convex portions of the side bars, so that the side bars 151-1 and the side bars 151- 2 is urged toward the inner side of the cylinder lock 100, the side bar 151-1 and the side bar 151-2 move in the direction perpendicular to the key insertion direction and toward the inner side of the cylinder lock 100. The fitting with the recesses 101d-1 and 101d-2 provided on the inner surface of the cylinder 101 is released, and the inner peripheral cylinder 103 becomes rotatable.

  That is, when the key 190 is rotated, the inner cylinder 103 is also rotated accordingly. At this time, the side bar 151-1 and the side bar 151 are formed along the shape of the recess 101 d-1 or 101 d-2. -2 is biased toward the inside of the cylinder lock 100. Thereby, as shown in FIG. 19, the inner cylinder 103 is rotated, and the cylinder lock 100 is unlocked.

  FIG. 20 is a diagram for explaining the rotation of the key 190 inserted into the cylinder lock 100. FIG. 20 b is a front view of the cylinder lock 100 with the key 190 inserted, and is an initial view. When unlocking the cylinder lock 100, the key 190 is rotated in the right direction (clockwise) in the figure from the state shown in FIG. 20b. Then, when the key 190 is rotated 90 ° clockwise to reach the state shown in FIG. 20c, the cylinder lock 100 is unlocked. That is, an electrical signal indicating that the cylinder lock 100 is unlocked is output from the connector 102a provided at the rear portion of the switch case 102.

  On the other hand, when resetting the key code set in the cylinder lock 100 (referred to as resetting the cylinder lock 100 as appropriate), the key 190 is rotated in the left direction (counterclockwise) in the figure from the state shown in FIG. Let Then, when the key 190 is rotated counterclockwise by 150 ° to reach the state shown in FIG. 20a, the cylinder lock 100 is reset. That is, a new key code can be set.

  Next, resetting of the key code set in the cylinder lock 100 will be described.

  FIG. 21 is a longitudinal sectional view of the cylinder lock 100 and shows a state where the cylinder lock 100 is not reset. FIG. 22 is an enlarged view of a portion surrounded by a circle in FIG.

  In the state where the cylinder lock 100 is not reset, as shown in FIG. 22, the tumbler plate 133-23 and the opening / closing plate 131-23 are engaged with the engaging pin 133-23b (or the engaging pin 133-33) as described above. 23c) are engaged with the engagement holes 131-23a (or the engagement holes 131-23b) and are in contact with each other. Similarly, the other tumbler plate and the opening / closing plate are also in a state in which the engagement pins engage with the engagement holes and come into contact with each other.

  FIG. 23 is a longitudinal sectional view of the cylinder lock 100 and shows a state in which the cylinder lock 100 is reset. 24 is an enlarged view of a portion surrounded by a circle in FIG.

  In the state in which the cylinder lock 100 is reset, as shown in FIG. 24, the tumbler plate 133-3 and the opening / closing plate 131-3 are in positions separated from each other (not in contact), and the engagement pin 133- 3b (or engagement pin 133-3c) and engagement hole 131-3a (or engagement hole 131-3b) are disengaged.

  That is, the side bar 151-2 in FIG. 23 moves in the key insertion direction (a direction parallel to the key) and forward of the cylinder lock 100 (downward in the drawing) as compared to the case of FIG. 21. As the side bar 151-2 moves, the tumbler plate 133-3 also moves from the position shown in FIG. 22 in the key insertion direction (direction parallel to) shown in FIG. The engagement pin 133-3b or the engagement pin 133-3c and the engagement hole 131-3a or the engagement hole 131-3b are disengaged by moving to the front (downward direction in the drawing) position. It will be.

  Similarly, the other tumbler plate and the opening / closing plate are also located at a distance from each other, and the engagement between the engagement pin and the engagement hole is released.

  This will be described in more detail with reference to FIGS.

  FIG. 25a is a front view of the cylinder lock 100 in a state where reset is started, that is, in a state in which a regular key is inserted into the cylinder lock 100 and starts to rotate counterclockwise. FIG. 25b is a diagram for explaining the internal state of the cylinder lock 100 in the state shown in FIG. 25a. Here, for the sake of clarity, a part of the outer peripheral cylinder 101 of the cylinder lock 100 and the internal A state in which the circumferential cylinder 103 and the like are virtually removed is shown. FIG. 25c is a view of the cylinder lock 100 shown in FIG. 25b as seen from another angle.

  As shown in FIGS. 25b and 25c, in this state, the tumbler plate 133-22 and the opening / closing plate 131-22 are in contact with each other, and the tumbler plate 133-4 and the opening / closing plate 131-4 are also in contact with each other. ing.

  The tumbler plate 133-4 is fitted to a part of the side bar 151-1, and is configured to move as the side bar 151-1 moves in the key insertion direction. The tumbler plate 133-22 is fitted to a part of the side bar 151-2, and is configured to move as the side bar 151-2 moves in the key insertion direction.

  In the figure, only the tumbler plate 133-22 and the opening / closing plate 131-22, and the tumbler plate 133-4 and the opening / closing plate 131-4 are shown, but the other tumbler plates and the opening / closing plates operate in the same manner. .

  FIG. 26a is a front view of the cylinder lock 100 in a state in the middle of resetting and in a state where the key is further rotated counterclockwise from the state shown in FIG. 25a. FIGS. 26b and 26c are views for explaining the internal state of the cylinder lock 100 in the state shown in FIG. 26a, and correspond to FIGS. 25b and 25c, respectively.

  When the inner cylinder 103 rotates with the rotation of the key, the side bars 151-1 and 151-2 abut the front (left side in the figure) end portion on the back surface of the front surface of the outer cylinder 101. In addition, the rear end (right side in the figure) is moved while being brought into contact with the front end surface of the switch case 102 (the surface in contact with the inner peripheral cylinder 103).

  FIG. 28A is a diagram illustrating an appearance of the switch case 102, and FIG. 28B is a diagram of the switch case 102 illustrated in FIG. 28A as viewed from another angle. As shown in FIG. 28a and FIG. 28b, the front end surface of the switch case 102 (the surface that comes into contact with the inner cylinder 103) has a different shape depending on its position. When 151-1 moves, a hole 102f is provided at a position where the rear end of the side bar 151-1 contacts.

  Further, as shown in FIGS. 28a and 28b, when the side bar 151-2 moves on the front end surface of the switch case 102 as the inner peripheral cylinder rotates, the rear end portion of the side bar 151-2. An inclination 102g is provided at a position where the abuts.

  FIG. 29a is a diagram showing the outer appearance of the outer cylinder 101, and FIG. 29b is a diagram of the outer cylinder shown in FIG. 29a as seen from another angle. FIGS. 29c and 29d are diagrams for explaining the configuration of the front and back surfaces of the outer cylinder 101. For the sake of clarity, the cylindrical portions of the outer cylinder 101 of FIGS. 29a and 29b are virtually removed, respectively. It is said that. As shown in FIG. 29c and FIG. 29d, the front and back surfaces of the outer cylinder 101 have different shapes depending on their positions, and when the side bar 151-1 moves with the rotation of the inner cylinder, A slope 101g is provided at a position where the front end portion of the side bar 151-1 contacts.

  As shown in FIGS. 29c and 29d, the rear end of the side bar 151-2 is moved to the rear side of the outer cylinder 101 when the side bar 151-2 moves with the rotation of the inner cylinder. A hole 101f is provided at a position where the abuts.

  That is, when the inner cylinder 103 (key) is further rotated counterclockwise from the state shown in FIG. 26b, the front end of the side bar 151-1 changes the slope 101g in FIG. 29c from the left to the right in FIG. It moves toward and gradually pushes the side bar 151-1 in the key insertion direction toward the rear of the cylinder lock. When the rear end of the side bar 151-1 moves to the same position as the hole 102 f in FIG. 28 a, the front end of the side bar 151-1 is inserted into the hole 102 f and the side bar 151-1 is It moves in the insertion direction and behind the cylinder lock.

  When the inner cylinder 103 (key) is further rotated counterclockwise from the state shown in FIG. 26c, the rear end of the side bar 151-2 moves the slope 102g of FIG. 28b upward from the bottom in FIG. 28b. And gradually presses the side bar 151-2 toward the front of the cylinder lock in the key insertion direction. When the front end of the side bar 151-2 moves to the same position as the hole 101f in FIG. 29d, the rear end of the side bar 151-2 is inserted into the hole 101f, and the side bar 151-2 is It moves in the insertion direction and forward of the cylinder lock.

  FIG. 27a is a front view of the cylinder lock 100 in a state where the reset is completed and the key is further rotated counterclockwise from the state shown in FIG. 26a. FIGS. 27b and 27c are diagrams for explaining the internal state of the cylinder lock 100 in the state shown in FIG. 27a, and correspond to FIGS. 25b and 25c, respectively.

  As shown in FIGS. 27b and 27c, the side bar 151-1 is moving in the key insertion direction and behind the cylinder lock as described above, and the side bar 151-2 is as described above. The key moves in the direction of key insertion and forward of the cylinder lock. In addition, the direction of movement of the sidebar 151-1 or 151-2 is shown by an arrow in the figure.

  As the side bar 151-1 and the side bar 151-2 move in the key insertion direction, the tumbler plate 133-4 and the tumbler plate 133-22 also move in the key insertion direction. Thereby, the tumbler plate 133-22 and the opening / closing plate 131-22 are positioned away from each other (without contact), and the tumbler plate 133-4 and the opening / closing plate 131-4 are also separated from each other (without contact). As described above with reference to FIGS. 23 and 24, the cylinder lock 100 is reset.

  When the reset as shown in FIGS. 27a to 27c is completed, a new key is inserted, and the inner cylinder 103 (key) is rotated clockwise. The engagement pins and the engagement holes of the respective opening and closing plates are engaged again at positions corresponding to the key codes of the new key. As a result, a new key code can be set for the cylinder lock 100.

  By the way, the key 190 as described above with reference to FIGS. 5 and 6 is provided with grooves 191a and 191b for specifying the key code on both sides of the insertion portion 191, but in order to increase the key code. Of course, the shape of the groove 191a and the shape of the 191b are different from each other. When the key 190 is inserted into the cylinder lock 100, it is determined in advance whether the grooves 191a and 191b are directed to the left or right with respect to the longitudinal direction of the key hole 103a (key insertion direction). Therefore, if the direction of the grooves 191a and 191b with respect to the key insertion direction is mistakenly inserted, the cylinder lock 100 cannot be unlocked or reset.

  For this reason, the key 190 is provided with a notch 192 at the rear end portion of the insertion portion so as to prevent the grooves 191a and 191b from being inserted in the wrong direction with respect to the key insertion direction. . When the key 190 is inserted into the cylinder lock 100 and rotated, the notch 192 is rotated so as to hold the front end of the outer cylinder 101.

  However, it is very difficult for the user to remember exactly whether the grooves 191a and 191b are directed to the left or right with respect to the longitudinal direction of the keyhole 103a.

  Therefore, it is possible to use a key 210 as shown in FIGS. 30 and 31 instead of the key 190.

  30 is a perspective view showing an appearance of a key 210 for unlocking or locking the cylinder lock 100, and FIG. 31 is a perspective view of the key 210 as seen from the opposite side of FIG. As shown in FIGS. 30 and 31, protrusions 211 a or 211 b are provided on both surfaces of the insertion portion 211 of the key 210. A part of each of the open / close plates 131-1 to 131-5 is in contact with the upper surface of the protrusion 211a in the drawing, and the open / close plates 131-1 to 131-5 are vertically moved according to the shape of the upper surface of the protrusion 211a. The position of will be determined. Similarly, a part of each of the opening / closing plates 131-21 to 131-25 abuts on the upper surface of the protrusion 211b, and the upper and lower surfaces of the opening / closing plates 131-1 to 131-5 are in accordance with the shape of the upper surface of the protrusion 211b. The position of the direction will be determined.

  The shape of the lower surface of the protrusion 211a in the drawing is configured to match the shape of the upper surface of the protrusion 211b in the drawing, and the shape of the lower surface of the protrusion 211b in the drawing is the protrusion 211a. It is comprised so that it may correspond with the shape of the upper surface in this figure.

  This will be described in more detail with reference to FIGS. As shown in FIG. 32, the projection 211b (the same applies to 211a) is configured such that the width in the vertical direction in the drawing becomes narrow at the tip of the insertion portion 211, and the insertion portion 211 is inserted into the key hole 103a. The protrusion 131-21e of the open / close plate 131-21 contacts the upper surface of the protrusion 211b. As the key 210 (insertion portion 211) is inserted deeper, the convex portion 131-21e moves in the vertical direction along the shape of the upper surface of the projection 211b, so that the opening / closing plate 131-21 is in the vertical direction. Move to.

  FIG. 33 is a cross-sectional view of the insertion portion 211 in a state where the convex portion 131-21e is at a predetermined position of the projection 211b, and FIG. 34 is an enlarged view of a portion surrounded by a circle in FIG. is there.

  In this case, unlike the case described above with reference to FIGS. 7 to 9, the convex portion 131-21e of the opening / closing plate 131-21 is configured to have a thinner thickness (width) in the vertical direction in the drawing. The convex portion 131-21e contacts the upper surface of the protrusion 211b and moves in the vertical direction, and the vertical position of the opening / closing plate 131-21 is determined.

  Here, the open / close plate 131-21 has been described as an example, but the open / close plates 131-22 to 131-25 are similarly determined in the vertical direction. Similarly, the vertical positions of the open / close plates 131-1 to 131-5 are determined in the protrusion 211a on the back side of the protrusion 211b.

  Thus, in the key 210 that unlocks or locks the cylinder lock 100, the shape of the protrusion 211a and the protrusion 211b is a key code. However, unlike the case of the key 190, in the case of the key 210, when the key is inserted, the key code is specified only by the upper surfaces of the protrusions 211a and 211b. Further, as described above, the shape of the lower surface of the protrusion 211a in the drawing is configured to match the shape of the upper surface of the protrusion 211b in the drawing, and the shape of the lower surface of the protrusion 211b in the drawing. Is configured to match the shape of the upper surface of the protrusion 211a in the drawing.

  Accordingly, when the key 210 is inserted into the cylinder lock 100, it is not predetermined which of the projections 211a and 211b is directed to the left or right of the key insertion direction. The cylinder lock 100 can be unlocked or reset. That is, the key 210 is configured as a reversible key.

  Therefore, unlike the case of the key 190, the key 210 is provided with cuts 212 on both the upper and lower sides in the drawing at the rear end portion of the insertion portion (FIG. 30 or FIG. 31). When the key 210 is inserted into the cylinder lock 100 and rotated, the notch 212 is rotated so as to hold the front end portion of the outer cylinder 101.

  FIG. 35 is a front view of the cylinder lock 100 in a state where the key is not inserted (that is, locked), and FIG. 36 is a cut view of the cylinder lock in the state of FIG. 35 at a predetermined depth direction position. It is sectional drawing of the state which carried out.

  FIGS. 35 and 36 correspond to FIGS. 14 and 15, respectively. As shown in FIG. 36, when the key is not inserted, the opening / closing plate 131-1 or 131-21 is opened / closed. The plate spring 132-1 or 132-21 is urged downward in the figure to be positioned on the lower side. However, unlike the case of FIG. 15, the convex portion 131-1e of the open / close plate 131-1 and the convex portion 131-21e of the open / close plate 131-21 are positioned slightly above the center in the keyhole 103a. . By doing in this way, when the insertion part 211 is inserted in the keyhole 103a, the convex part 131-1e and the convex part 131-21e (same for other convex parts) ride on the upper surface of the protrusion 211a or 211b. In this way, contact.

  FIGS. 37 to 40 are diagrams corresponding to FIGS. 16 to 19, respectively, illustrating the unlocking of the cylinder lock 100 when the key 210 is used. Since the state of each part inside the cylinder lock 100 when the cylinder lock 100 is unlocked is the same as that described above with reference to FIGS. 16 to 19, detailed description thereof is omitted.

  By the way, as for the key used for the conventional cylinder lock, the thing of a structure which has a positioning surface as a mortar-shaped hole which has three steps of depth (height) in an insertion part is used, for example. Many cylinder locks using such a key have become widespread, and in the future, compatibility with the cylinder lock of the present invention may be required.

  41 is a perspective view showing an appearance of a key 270 having a positioning surface as a mortar-shaped hole in the insertion portion, and FIG. 42 is a perspective view of the key 270 as viewed from the opposite side of FIG. As shown in FIGS. 41 and 42, positioning surfaces 271a and 271b are respectively provided on the upper and lower sides of the insertion portion 271 of the key 270 in the drawing. Each of the positioning surfaces 271a and 271b is provided with a plurality of mortar-shaped holes (a number corresponding to the number of opening / closing plates).

  For example, in order to ensure compatibility with the key of a conventional cylinder lock, it is a cylinder lock that can be unlocked using the key 270, and the key code is increased without changing the size (length) of the cylinder lock. It is also possible to realize a cylinder lock that can be used.

  Although details of the configuration of the cylinder lock corresponding to the key 270 will be described later, in the cylinder lock corresponding to the key 270, as shown in FIG. 43, the distal end portion of the insertion portion 271 has a vertical width in the figure. It is comprised so that it may become narrow, and when the insertion part 271 is inserted in a keyhole, it makes the convex part 331-21e of the opening-and-closing plate 331-21 contact | abut on the positioning surface 271b. As the key 270 (insertion portion 271) is inserted deeper, the convex portion 331-21e moves in the vertical direction along the shape of the positioning surface 271b while being in contact with the positioning surface 271b. It is only necessary that 331-21 move in the vertical direction and move to the vertical position of the opening / closing plate 331-21 corresponding to the key code.

  44 is a cross-sectional view of the insertion portion 271 in a state where the convex portion 331-21e is at a predetermined position on the positioning surface 271b, and FIG. 45 is an enlarged view of a portion surrounded by a circle in FIG. It is.

  As shown in FIG. 45, the positioning surface 271b is provided with a mortar-shaped hole, and the convex portion 331-21e abuts so as to fall into the hole and moves in the vertical direction, thereby opening and closing the plate 331-21. The vertical position of is determined.

  Here, the movement of the opening and closing plate by the positioning surface 271b has been described. However, if the opening and closing plate is similarly moved on the positioning surface a on the back side of the positioning surface 271b, a cylinder lock corresponding to the key 270 can be obtained. A cylinder lock capable of increasing the key code without changing the size (length) of the cylinder lock can be realized.

  FIG. 46 is a perspective view showing a configuration of an inner peripheral cylinder 303 attached to a cylinder lock 300 which will be described later with reference to FIG. The inner peripheral cylinder 303 is an inner peripheral cylinder corresponding to the key 270 in FIG. 41 or FIG. 42, and in the same figure, each of the opening / closing plates 331-1 to 331-5 depends on its position relative to the inner peripheral cylinder 303. The peripheral cylinder 303 is allowed to rotate or operates so as to suppress the rotation. The open / close plates 331-1 to 331-5 are engaged with the tumbler plates 333-1 to 333-5 through the engagement holes in the same manner as described above with reference to FIG. 4.

  That is, an engagement hole composed of three holes is provided in the upper and lower portions of each opening and closing plate. On the other hand, each tumbler plate is provided with an engagement pin having a diameter for engaging with any one of the engagement holes.

  Accordingly, each of the engagement pins engages with any one of the engagement holes, so that each opening / closing plate and each tumbler plate engage, and each opening / closing plate and tumbler plate engage with each other. The position of the tumbler plate in the vertical direction in the figure is determined. Here, the vertical direction is a direction orthogonal to the direction in which the key is inserted in the inner peripheral cylinder 303 and is a direction in which the three engagement holes are arranged in the opening / closing plate 331-1.

In this example, since each of the engagement holes is constituted by three holes, the position of the opening / closing plate and the tumbler plate in the vertical direction in the drawing is one of three.

In the cylinder lock 300, the key code is determined by determining the positions of the opening / closing plate and the tumbler plate in the vertical direction in the drawing. In other words, by engaging the open / close plates 331-1 to 331-5 and the tumbler plates 333-1 to 333-5, 243 (= 3 ⁵ ) key codes can be set.

  Each of the opening / closing plate springs 332-1 to 332-5 is provided such that one end thereof is in contact with the opening / closing plates 331-1 to 331-5 and the other end is in contact with the spring cover 335. Then, the open / close plates 331-1 to 331-5 are urged so as to contact the positioning surface of the key inserted into the cylinder lock 100.

  The open / close plates 331-21 to 331-25, the tumbler plates 333-21 to 333-25, and the open / close plate springs 332-21 to 332-25 are the open / close plates 331-1 to 331-5 and the tumbler plate 333-respectively. 1 to 333-5 and the opening / closing plate springs 332-1 to 332-5, and the opening / closing plates 331-1 to 331-5 and the tumbler plate 333 are centered on the rotation axis of the inner cylinder 303. 1 to 333-5 and the opening / closing plate springs 332-1 to 332-5 are attached so as to be point-symmetric.

  That is, the open / close plates and the tumbler plates on both the left and right sides of the key hole 303 a of the inner peripheral cylinder 303 are attached to positions that are symmetric with respect to a point passing through the rotation axis of the inner peripheral cylinder 303.

Therefore, in the cylinder lock 300, the opening / closing plates 331-1 to 331-5 and the tumbler plates 333-1 to 333-5 are respectively engaged, and the opening / closing plates 331-21 to 331-25 and the tumbler plates 333-21 to 333-21 By engaging 333-25 respectively, 59049 (= 3 ¹⁰ ) key codes can be set.

With this configuration, for example, even a key used in a conventional cylinder lock can be used as a key for unlocking or resetting the cylinder lock 300. In the conventional cylinder lock, the open / close plate and the tumbler plate are arranged in a line in the depth direction of the cylinder lock, so the keys used in the conventional cylinder lock have the same positioning surface at both ends of the insertion part. It is made into a shape. For this reason, when using a key used in a conventional cylinder lock, there are 243 key codes (= 3 ⁵ ).

On the other hand, by making the positioning surfaces 271a and 271b different from each other like the key 270, the key code can be increased to 50049 (= 3 ¹⁰ ) without changing the size (length) of the cylinder lock. It becomes possible.

  The open / close plates 331-1 to 331-5 and 331-21 to 331-25 and the open / close plate springs 332-1 to 332-5 and 332-21 to 332-25 are provided at the center of the inner peripheral cylinder 303, respectively. Inserted into the tumbler guide.

  Screws are inserted into the holes of the spring cover 335, the tumbler guide and the spring cover 335 are fixed, and the spring cover 335 is fixed by being crimped to the inner peripheral cylinder 303.

  The two side bars are configured in the same manner as described above with reference to FIG. That is, the side bar 351-1 is pressed against the inner surface of the outer cylinder 301 described later by the side bar springs 352-1 and 352-2. The side bar 351 regulates the rotation of the inner peripheral cylinder 303 with respect to the outer peripheral cylinder 301 by engaging with or disengaging from a recess provided on the inner surface of the outer peripheral cylinder 301.

  The side bar 351-1 is configured to be movable in a direction perpendicular to the key insertion direction along a side bar hole provided in the inner peripheral cylinder 303. In a state where the cylinder lock 300 can be unlocked, a part of the side bar 351-1 is fitted into the respective recesses of the tumbler plates 333-1 to 333-5, so that the side bar 351-1 is the key. It moves in the direction perpendicular to the insertion direction and inside the cylinder lock 300. As a result, the fitting between the recess provided on the inner surface of the outer cylinder 301 and the side bar 351-1 is released, and the inner cylinder 303 can be rotated.

  On the other hand, in a state where the cylinder lock 300 is locked, the side bar 351-1 is provided on the inner surface of the outer peripheral cylinder 301 by contacting the side surface other than the recess in any of the opening / closing plates 333-1 to 333-5. The fitting between the recessed portion and the side bar 351-1 is not released, and the inner peripheral cylinder 303 cannot be rotated.

  The side bar 351-1 is usually in a direction orthogonal to the key insertion direction by the side bar springs 352-1 and 352-2, on the outer side of the cylinder lock 300, that is, on the inner surface of the outer cylinder 301. It is urged in the direction of fitting with the provided recess.

  The side bar 351-1 is structured to be movable in the key insertion direction along the side bar hole provided in the inner peripheral cylinder 303. In a state where the key code of the cylinder lock 300 is reset, the side bar 351-1 moves in the key insertion direction and moves rearward of the cylinder lock 300. As a result, as the side bar 351-1 moves, the tumbler plates 333-1 to 333-5 also move in the key insertion direction, and the open / close plates 331-1 to 331-5 and the tumbler plates 333-1 to 333-5. The key code is reset by releasing the engagement with 5 respectively.

  Note that the side bar 351-1 is normally urged by the side bar spring 352-3 in the key insertion direction and behind the cylinder lock 300 (on the switch case 302 side described later).

  Here, the operation of the sidebar 351-1 has been described, but the same operation is performed for the sidebar 351-2. However, in the case of the side bar 351-2, the moving direction when the key code of the cylinder lock 300 is reset is different from the case of the side bar 351-1. That is, the side bar 351-2 is normally urged forward of the cylinder lock 300 by the side bar spring 352-13 in the key insertion direction, and the key code of the cylinder lock 300 is reset. , The side bar 351-2 moves in the key insertion direction and forward of the cylinder lock 300. As a result, the opening / closing plates 331-21 to 331-25 and the tumbler plates 333-21 to 333-25 The key code is reset by releasing the engagement.

  FIG. 47 is a perspective view showing a configuration of a cylinder lock 300 which is another cylinder lock to which the present invention is applied. The cylinder lock 300 is a cylinder lock corresponding to the key 270 shown in FIG. 41 or 42, and the outer cylinder 301 to the ratchet ball 314 shown in the figure are the same as the outer cylinder 101 to the ratchet ball 114 of FIG. Detailed description is omitted. However, in this case, the inner cylinder 303 having the structure described above with reference to FIG. 46 is used.

  Next, a mechanism for unlocking the cylinder lock 300 will be described. FIG. 48 is a view showing the appearance of the cylinder lock 300 in a state where the key is not inserted (that is, in a locked state), and FIG. 49 is a sectional view of the cylinder lock 300 in the plane A of FIG.

  50 is an enlarged view of a portion surrounded by a circle in FIG. As shown in FIG. 50, the tumbler plate 333-2 and the opening / closing plate 331-2 are engaged by the engagement pin and the engagement hole as described above.

  51 is a front view of the cylinder lock 300 in a state where the key is not inserted (ie, locked), and FIG. 52 is a cut view of the cylinder lock in the state of FIG. 51 at a predetermined depth direction position. It is sectional drawing of the state which carried out.

  As shown in FIG. 52, when the key is not inserted, the opening / closing plate 331-1 is biased upward in the drawing by the opening / closing plate spring 332-1, and the opening / closing plate 331-21 is , 332-21 and urged downward in the figure.

  In this state, the tumbler plate 333-1 whose position is determined according to the vertical position of the opening / closing plate 331-1 is positioned on the upper side, and the position thereof is determined according to the vertical position of the opening / closing plate 331-21. The fixed tumbler plate 333-21 is located on the lower side. Further, the concave portion 333-1a of the tumbler plate 333-1 does not coincide with the convex portion 351-1a of the side bar 351-1 in the vertical direction in the figure, and the concave portion 333 of the tumbler plate 333-21. 21a is not aligned with the convex portion 351-2a of the side bar 351-2 in the vertical direction in the figure.

  Further, in this state, the side bar 351-1 is fitted in the recess 301 d-1 provided on the inner surface of the outer peripheral cylinder 301, and the side bar 351-2 is provided on the inner surface of the outer peripheral cylinder 301. The inner periphery cylinder 303 cannot be rotated.

  As shown in FIG. 53, when a key 270 (a regular key that can unlock the cylinder lock 300) is inserted into the cylinder lock 300, the state of each part inside the cylinder lock 300 is changed from the state shown in FIG. It changes as shown in FIG.

  54 is a cross-sectional view of the cylinder lock 300 at the same position in the depth direction as FIG. 52, and is a cross-sectional view when the key 270 is inserted into the cylinder lock.

  In the same figure, as described above with reference to FIGS. 43 to 45, the projections 331-1e or 331-21e of the opening / closing plate are formed in the holes of the positioning surfaces 271a or 271b of the upper and lower ends of the insertion portion 271 of the key 270. It is in a contact state. As a result, the tumbler plate 333-1 or 333-21 moves in the vertical direction in the drawing together with the opening / closing plate 331-1 or 331-21. In this case, compared to the state shown in FIG. 52, the tumbler plate 333-1 has moved to the lower side in the figure, and the tumbler plate 333-21 has moved to the upper side in the figure. As a result, the concave portion 333-1a of the tumbler plate 333-1 is aligned with the convex portion 351-1a of the side bar 351-1 in the vertical direction in the figure, and the concave portion 333-21a of the tumbler plate 333-21 is The convex portion 351-2a of the side bar 351-2 and the vertical position in the figure coincide.

  Although only the tumbler plate 333-1 and the tumbler plate 333-21 have been described here, the tumbler plates 333-2 to 333-5 or the tumbler plates 333-22 to 333 are used when a proper key is inserted. 25, the concave portions 333-2a to 333-5 a or the concave portions 333-22 a to 333-25 a are the same as the convex portion 351-1 a of the side bar 351-1 or the convex portion 351-2 a of the side bar 351-2. The direction positions will match. That is, since the key code of the regular key matches the key code set in the cylinder lock 300, the positions of the concave portions of all the tumbler plates are moved so as to match the positions of the convex portions of the side bars.

  In this state, the side bar 351-1 is fitted by fitting the convex part 351-1 a of the side bar 351-1 to the concave parts 333-1 a to 333-5 a of the tumbler plates 333-1 to 333-5. It is possible to move in the direction orthogonal to the key insertion direction and inward of the cylinder lock 300 (left side in the figure). Further, by inserting the convex portion 351-2a of the side bar 351-2 into the concave portions 333-21a to 333-25a of the tumbler plates 333-21 to 333-25, the side bar 351-2 is inserted in the key insertion direction. It is possible to move the cylinder lock 100 in the inner direction (right side in the figure).

  When the key 270 is rotated as shown in FIG. 55 from the state shown in FIG. 53, the state of each part inside the cylinder lock 300 changes from the state shown in FIG. 54 as shown in FIG. To do.

  56 is a cross-sectional view of the cylinder lock 300 at the same predetermined depth position as FIG. 54 (or FIG. 52), and is a cross-sectional view when the key 270 is rotated. When the regular key is inserted, as described above, the positions of the concave portions of all the tumbler plates are moved so as to coincide with the positions of the convex portions of the side bars, so that the side bars 351-1 and 351- 2 is urged toward the inner side of the cylinder lock 300, the side bar 351-1 and the side bar 351-2 move in the direction perpendicular to the key insertion direction and toward the inner side of the cylinder lock 300. The engagement with the recesses 301d-1 and 301d-2 provided on the inner surface of the cylinder 301 is released, and the inner peripheral cylinder 303 can be rotated.

  That is, when the key 270 is rotated, the inner cylinder 303 is also rotated accordingly. At this time, the side bar 351-1 and the side bar 351 are aligned along the shape of the recess 301 d-1 or 301 d-2. -2 is biased toward the inside of the cylinder lock 300. Thereby, as shown in FIG. 56, the inner peripheral cylinder 303 is rotated and the cylinder lock 300 is unlocked.

  In the case of the cylinder lock 300, as in the case of the cylinder lock 100, the cylinder lock 300 is unlocked by rotating the key 270 by 90 ° clockwise from the initial state. Further, the cylinder lock 300 is reset by rotating the key 270 by 150 ° counterclockwise from the initial state.

  Next, resetting of the key code set in the cylinder lock 300 will be described.

  FIG. 57 is a longitudinal sectional view of the cylinder lock 300 and shows a state where the cylinder lock 300 is not reset. 58 is an enlarged view of a portion surrounded by a circle in FIG.

  When the cylinder lock 300 is not reset, as shown in FIG. 58, the tumbler plate 333-23 and the opening / closing plate 331-23 are engaged with the engagement pin and the engagement hole as described above. They are in contact with each other. Similarly, the other tumbler plates and the opening / closing plates are engaged with the engagement pins and the engagement holes and are in contact with each other.

  FIG. 59 is a longitudinal sectional view of the cylinder lock 300 and shows a state where the cylinder lock 300 is reset. 60 is an enlarged view of a portion surrounded by a circle in FIG.

  In a state where the cylinder lock 300 is reset, as shown in FIG. 60, the tumbler plate 333-23 and the opening / closing plate 331-23 are in positions away from each other (not in contact), and are engaged with the engagement pins. The engagement by the hole is released.

  That is, the side bar 351-2 in FIG. 59 moves in the key insertion direction (a direction parallel to the key) and forward of the cylinder lock 300 (downward in the drawing) as compared with the case of FIG. As the side bar 351-2 moves, the tumbler plate 333-23 also moves from the position shown in FIG. 58 to the key insertion direction (direction parallel to) shown in FIG. By moving to the front (downward in the figure) position, the engagement by the engagement pin and the engagement hole is released.

  Similarly, the other tumbler plate and the opening / closing plate are also located at a distance from each other, and the engagement by the engagement pin and the engagement hole is released.

  This will be described in more detail with reference to FIGS.

  FIG. 61a is a front view of the cylinder lock 300 in a state where the reset is started, that is, in a state where a regular key is inserted into the cylinder lock 300 and starts to rotate counterclockwise. FIG. 61b is a diagram for explaining the internal state of the cylinder lock 300 in the state shown in FIG. 61a. Here, for the sake of clarity, a part of the outer peripheral cylinder 301 of the cylinder lock 300, A state where the peripheral cylinder 303 and the like are virtually removed is shown. FIG. 61c is a view of the cylinder lock 300 shown in FIG. 61b as seen from another angle.

  As shown in FIGS. 61b and 61c, in this state, the tumbler plate 333-2 and the opening / closing plate 331-2 are in contact with each other, and the tumbler plate 333-24 and the opening / closing plate 331-24 are also in contact with each other. ing.

  The tumbler plate 333-2 is fitted to a part of the side bar 351-1 and is configured to move as the side bar 351-1 moves in the key insertion direction. The tumbler plate 333-24 is fitted to a part of the side bar 351-2 and is configured to move as the side bar 351-2 moves in the key insertion direction.

  In the figure, only the tumbler plate 333-24 and the opening / closing plate 331-24, and the tumbler plate 333-2 and the opening / closing plate 331-2 are shown, but the other tumbler plates and opening / closing plates operate in the same manner. .

  FIG. 62a is a front view of the cylinder lock 300 in a state in the middle of resetting and in a state where the key is further rotated counterclockwise from the state shown in FIG. 61a. 62b and 62c are views for explaining the internal state of the cylinder lock 300 in the state shown in FIG. 62a, and correspond to FIGS. 61b and 61c, respectively.

  When the inner peripheral cylinder 303 rotates with the rotation of the key, the side bars 351-1 and 351-2 are in contact with the front (the left side in the figure) end on the back side of the front surface of the outer peripheral cylinder 301. While moving, the rear (right side in the figure) end portion moves while being brought into contact with the front end surface of the switch case 302 (the surface contacting the inner peripheral cylinder 303).

  The switch case 302 also has a configuration in which the front end surface (the surface in contact with the inner peripheral cylinder 303) has a different shape depending on its position, like the switch case 102 described above with reference to FIG. When the side bar 351-1 moves with the rotation of 303, a hole is provided at a position where the rear end portion of the side bar 351-1 abuts, and the side with the rotation of the inner peripheral cylinder 303. When the bar 351-2 moves, an inclination is provided at a position where the rear end portion of the side bar 351-2 contacts.

  Similarly to the case of the outer cylinder 101 described above with reference to FIG. 29, the outer cylinder 301 is configured such that the front and back surfaces of the outer cylinder 301 have different shapes depending on their positions. When the side bar 351-1 moves with the rotation, an inclination is provided at a position where the front end portion of the side bar 351-1 contacts, and the side bar 351-with the rotation of the inner peripheral cylinder 303. When 2 moves, the hole is provided in the position where the front-end part of the side bar 351-2 contacts.

  That is, when the inner peripheral cylinder 303 (key) is further rotated counterclockwise from the state shown in FIG. 62b, the front end portion of the side bar 351-1 moves on the inclination of the front rear side of the outer peripheral cylinder 301, and gradually. In addition, the side bar 351-1 is pressed toward the rear of the cylinder lock in the key insertion direction. When the rear end portion of the side bar 351-1 moves to the same position as the hole on the front end surface of the switch case 302, the rear end portion of the side bar 351-1 is inserted into the hole, and the side bar 351-1 is inserted. However, it moves behind the cylinder lock in the key insertion direction.

  When the inner cylinder 303 (key) is further rotated counterclockwise from the state shown in FIG. 62c, the rear end portion of the side bar 351-2 moves the inclination of the front end surface of the switch case 302, The side bar 351-2 is gradually pushed forward of the cylinder lock in the key insertion direction. When the front end portion of the side bar 351-2 moves to the same position as the hole on the back side of the outer cylinder 301, the rear end portion of the side bar 351-2 is inserted into the hole, and the side bar 351-2 is In the key insertion direction, it moves forward of the cylinder lock.

  FIG. 63a is a front view of the cylinder lock 300 in a state where the reset is completed and the key is further rotated counterclockwise from the state shown in FIG. 62a. 63b and 63c are views for explaining the internal state of the cylinder lock 300 in the state shown in FIG. 63a, and correspond to FIGS. 61b and 61c, respectively.

  As shown in FIGS. 63b and 63c, the side bar 351-1 moves in the key insertion direction and behind the cylinder lock as described above, and the side bar 351-2 moves as described above. The key moves in the direction of key insertion and forward of the cylinder lock. In addition, the direction of movement of the sidebar 351-1 or 351-2 is shown by an arrow in the figure.

  As the side bar 351-1 and the side bar 351-2 move in the key insertion direction, the tumbler plate 333-2 and the tumbler plate 333-24 also move in the key insertion direction. Accordingly, the tumbler plate 333-24 and the opening / closing plate 331-24 are positioned away from each other (without contact), and the tumbler plate 333-2 and the opening / closing plate 331-2 are also separated from each other (without contact). As described above with reference to FIGS. 59 and 60, the cylinder lock 300 is reset.

  When the reset as shown in FIGS. 63a to 63c is completed, when a new key is inserted and the inner cylinder 303 (key) is rotated clockwise, each tumbler plate that has been disengaged is released. The engagement pins and the engagement holes of the respective opening and closing plates are engaged again at positions corresponding to the key codes of the new key. As a result, a new key code can be set for the cylinder lock 300.

It is a perspective view which shows the structural example of the cylinder lock of this invention. It is the perspective view which looked at the cylinder lock of FIG. 1 from another angle. It is a perspective view which shows the structure of the cylinder lock of FIG. It is a perspective view which shows the structure of the inner peripheral cylinder of FIG. It is a perspective view which shows the external appearance of a key. It is the figure which looked at the key of FIG. 5 from another angle. It is a figure explaining the relationship between a key and an opening-and-closing plate. It is sectional drawing of the key of FIG. It is the figure which expanded a part of FIG. It is a perspective view which shows the external appearance of a cylinder lock. It is sectional drawing of the cylinder lock in the plane A of FIG. It is the figure which expanded a part of FIG. It is the figure which expanded a part of FIG. It is a front view of a cylinder lock in the state where a key is not inserted. It is sectional drawing of the cylinder lock of FIG. It is a perspective view of a cylinder lock in the state where a key was inserted. It is sectional drawing of the cylinder lock in the state of FIG. It is a perspective view of a cylinder lock in the state where the key is rotated. It is sectional drawing of the cylinder lock in the state of FIG. It is a figure explaining the rotation position of a key. It is sectional drawing of the cylinder lock in the state which is not reset. It is the figure which expanded a part of FIG. It is sectional drawing of the cylinder lock in the reset state. It is the figure which expanded a part of FIG. It is a figure explaining reset of a cylinder lock. It is a figure explaining reset of a cylinder lock. It is a figure explaining reset of a cylinder lock. It is a perspective view which shows the external appearance of a switch case. It is a perspective view which shows the external appearance of an outer periphery cylinder. It is a perspective view which shows the external appearance of another key. It is the figure which looked at the key of FIG. 30 from another angle. It is a figure explaining the relationship between the key of FIG. 30, and an opening-and-closing plate. It is sectional drawing of the key of FIG. It is the figure which expanded a part of FIG. FIG. 31 is a front view of a cylinder lock when the key of FIG. 30 is used. It is sectional drawing of the cylinder lock of FIG. It is a perspective view of a cylinder lock in the state where a key was inserted. It is sectional drawing of the cylinder lock in the state of FIG. It is a front view of a cylinder lock in the state where the key is rotated. It is sectional drawing of the cylinder lock in the state of FIG. It is a perspective view which shows the external appearance of another key. It is the figure which looked at the key of FIG. 41 from another angle. It is a figure explaining the relationship between the key of FIG. 41, and an opening-and-closing plate. It is sectional drawing of the key of FIG. It is the figure which expanded a part of FIG. It is a perspective view which shows the structural example of the inner peripheral cylinder in the case of using the key of FIG. It is a perspective view which shows another structural example of the cylinder lock of this invention. It is a perspective view which shows the external appearance of the cylinder lock of FIG. It is a longitudinal cross-sectional view of the cylinder lock in the plane A of FIG. It is the figure which expanded a part of FIG. 48 is a front view of the cylinder lock of FIG. 47 in a state where no key is inserted. FIG. It is sectional drawing of the cylinder lock | rock of FIG. It is a perspective view which shows the external appearance of the cylinder lock in the state in which the key was inserted. It is sectional drawing of the cylinder lock in the state of FIG. It is a perspective view of a cylinder lock in the state where the key is rotated. It is a longitudinal cross-sectional view of the cylinder lock in the state of FIG. It is a longitudinal cross-sectional view of the cylinder lock in the state which is not reset. It is the figure which expanded a part of FIG. It is sectional drawing of the cylinder lock in the reset state. It is the figure which expanded a part of FIG. It is a figure explaining reset of a cylinder lock. It is a figure explaining reset of a cylinder lock. It is a figure explaining reset of a cylinder lock.

Explanation of symbols

100 cylinder lock,
101 outer cylinder,
101d-1, 101d-2 recess,
102 switch case,
103 inner cylinder,
103a keyhole,
131-1 to 131-5 opening and closing plate,
131-21 to 131-25 opening and closing plate,
132-1 to 132-5 opening / closing plate spring,
132-21 to 132-25 springs for opening and closing plates,
133-1 to 133-5 tumbler plate,
133-21 to 133-25 tumbler plate,
151-1, 151-2 sidebar,
190 keys,
191a, 191b groove,
210 keys,
211a, 211b protrusions,
270 keys,
271a, 271b positioning surface,
300 cylinder lock,
301 outer cylinder,
301d-1, 301d-2 recess,
302 switch case,
303 inner cylinder,
303a keyhole,
331-1 to 331-5 opening and closing plate,
331-21 to 331-25 opening and closing plate,
332-1 to 332-5 spring for opening and closing plate,
332-21 to 332-25 spring for opening and closing plate,
333-1 to 333-5 tumbler plate,
333-21 to 333-25 tumbler plate,
351-1, 351-2 Sidebar

Claims (7)

A first direction which is a direction in which the position of the part changes in accordance with the key code by contacting the part corresponding to the key code provided on the first surface of the insertion portion of the key inserted into the cylinder A first opening and closing plate moved to the first position of
In accordance with the key code by contacting a portion corresponding to the key code provided on the second surface of the key insertion portion, provided at a position to be a line object in the center of the key hole into which the key is inserted. A second opening and closing plate that is moved to a second position in a first direction that is a direction in which the position of the part changes,
A first tumbler plate provided so that a position in a second direction orthogonal to the first direction and parallel to the direction of insertion of the key is movable to a third position or a fourth position;
A position in a second direction, which is provided at a position to be a line object in the center of the keyhole into which the key is inserted, is orthogonal to the first direction and is parallel to the direction of insertion of the key. A second tumbler plate movably provided at position 6,
A first sidebar that moves the first tumbler plate to the third position or the fourth position in the second direction according to the rotational position of the cylinder;
A second sidebar for moving the second tumbler plate to the fifth position or the sixth position in the second direction according to the rotational position of the cylinder;
Each of the first tumbler plate and the second tumbler plate is
When moving to the third position and the fifth position in the second direction, a plurality of lines arranged in the first direction provided on each of the first opening / closing plate and the second opening / closing plate Among the positioning portions, the positioning portion and one part of the positioning portion engage with each other to determine the position determined by the position of the positioning portion engaged and the first and second positions. The first side bar and the second side bar are moved to the seventh position and the eighth position in the first direction, and the first and second side bars are moved according to the seventh and eighth positions in the first direction. Determining the operation of locking or unlocking by restricting the movement in the third direction perpendicular to the direction of the second direction and the second direction,
When moving to the fourth position and the sixth position in the second direction, the engagement between a part of itself and the positioning portion provided on the opening and closing plate is released,
Each of the first opening / closing plate and the second opening / closing plate includes:
When the key is inserted, a position that is determined by the surface corresponding to the key code of the inserted key by contacting a portion corresponding to the key code of the inserted key, and a plurality of the keys A cylinder lock that is moved to a position in the first direction in which one of the positioning portions can be engaged with a portion of the positioning portion. The cylinder lock according to claim 1, wherein the first opening / closing plate and the first tumbler plate, and the second opening / closing plate and the second tumbler plate are respectively engaged by a hole and a pin. The cylinder lock according to claim 1, wherein the key code of the key is specified by a shape of a groove provided on each of the left and right sides of the key insertion portion in the key insertion direction in the key insertion direction. The key code of the key is a surface of a protrusion provided on both the left and right sides in the key insertion direction in the key insertion portion, and is specified by the shape of the upper surface in the key insertion direction. The cylinder lock according to claim 1. A first direction which is a direction in which the position of the part changes in accordance with the key code by contacting the part corresponding to the key code provided on the first surface of the insertion portion of the key inserted into the cylinder A first opening and closing plate moved to the first position of
In accordance with the key code by contacting a portion corresponding to the key code provided on the second surface of the key insertion portion, provided at a position to be pointed at the center of the key hole into which the key is inserted. A second opening and closing plate that is moved to a second position in a first direction that is a direction in which the position of the part changes,
A first tumbler plate provided so that a position in a second direction orthogonal to the first direction and parallel to the direction of insertion of the key is movable to a third position or a fourth position;
A position in a second direction, which is provided at a position to be pointed at the center of the keyhole into which the key is inserted, is orthogonal to the first direction and is parallel to the direction of insertion of the key. A second tumbler plate movably provided at position 6,
A first sidebar that moves the first tumbler plate to the third position or the fourth position in the second direction according to the rotational position of the cylinder;
A second sidebar for moving the second tumbler plate to the fifth position or the sixth position in the second direction according to the rotational position of the cylinder;
Each of the first tumbler plate and the second tumbler plate is
When moving to the third position and the fifth position in the second direction, a plurality of lines arranged in the first direction provided on each of the first opening / closing plate and the second opening / closing plate Among the positioning portions, the positioning portion and one part of the positioning portion engage with each other to determine the position determined by the position of the positioning portion engaged and the first and second positions. The first side bar and the second side bar are moved to the seventh position and the eighth position in the first direction, and the first and second side bars are moved according to the seventh and eighth positions in the first direction. Determining the operation of locking or unlocking by restricting the movement in the third direction perpendicular to the direction of the second direction and the second direction,
When moving to the fourth position and the sixth position in the second direction, the engagement between a part of itself and the positioning portion provided on the opening and closing plate is released,
Each of the first opening / closing plate and the second opening / closing plate includes:
When the key is inserted, a position that is determined by the surface corresponding to the key code of the inserted key by contacting a portion corresponding to the key code of the inserted key, and a plurality of the keys A cylinder lock that is moved to a position in the first direction in which one of the positioning portions can be engaged with a portion of the positioning portion. The cylinder lock according to claim 5, wherein the first opening / closing plate and the first tumbler plate, and the second opening / closing plate and the second tumbler plate are engaged by holes and pins, respectively. The cylinder lock according to claim 5, wherein the key code of the key is specified by a shape of a groove provided on each of upper and lower surfaces in the key insertion portion in the key insertion direction.

Images