JP3009458U - Plum blossom shaped tablets - Google Patents

Abstract

(57) [Summary] [Object] The present invention relates to a plum blossom-shaped lock, and an object thereof is to provide a plum blossom-shaped lock having an excellent antitheft effect. A tubular outer shell 32 having first, second, and third axial holes 321, 322, 323 in which the inner diameter of the tubular inner shell sequentially increases, and rotatably disposed inside the outer shell 32,
And a rod 44 and a lock core 46 extending in the direction of the center line.
And an outer lock stopper seat 34 having a plurality of perforations 42 and 43 provided in parallel with the center line, outer stoppers 50 and 51 slidably inserted into the perforations 42 and 43, and the outer shell. It is provided with an inner lock stopper seat 36 fixed inside 32 and having a plurality of recessed holes 64 corresponding to the perforations 42, 43, a spring 66 inserted in the recessed holes 64, and an inner lock stopper 70. , The spring 66 biases the outer lock stoppers 50, 51 via the inner lock stopper 70 to press the outer lock stoppers 50, 51 against the first shoulder portion 324 formed between the first and second shaft holes. To configure.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a plum blossom-shaped lock that prevents theft.

[0002]

[Prior art]

 A conventional plum blossom-shaped lock and key are shown in FIGS. This plum blossom-shaped lock 10 is configured to include an outer shell 11, an outer lock stopper seat 12, and an inner lock stopper seat 14. The outer shell 11 has a first axial hole 111 extending from the outside to the inside and an inside. A second shaft hole 112 is provided extending from the outside. The inner diameter of the first shaft hole 111 is slightly smaller than the inner diameter of the second shaft hole 112, and they are arranged on the same center line.

Further, the outer lock stopper seat 12 is substantially disc-shaped, is provided in the second shaft hole 112, and is provided with lock stopper holes 121 arranged at an appropriate distance, and further toward the inside. A lock core 122 extending a predetermined length is provided. Then, the outer stoppers 13 having different lengths are slidably inserted into the respective stopper stopper holes 121.

Further, the inner lock stopper seat 14 has a cylindrical shape, is arranged in the second shaft hole 112, and has a third shaft hole 141 into which the lock core 122 of the outer lock stopper seat 12 is inserted. The outer lock stopper seat 12 is supported by abutting on the lock stopper seat 12. Further, a plurality of lock plug recessed holes 142 with a bottom are bored from the outer surface in parallel with the central axis, and the spring 16 and the inner lock plug 15 are slidably inserted into the lock plug recessed holes 142, respectively. . Then, the spring 16 presses the outer edge surface portion of the outer locking plug 13 to the adjacent annular shoulder surface 113 of the first and second shaft holes 111 and 112 through the inner locking plug 15, and the other portions are pressed. Put into the first shaft hole 111.

The key 20 has a structure in which a thin and flat handle 21 and a cylinder 22 of a predetermined length are connected from one end of the handle 21 along the center line, and the outer diameter of the cylinder 22 is equal to that of the first shaft hole 111. A plurality of arcuate grooves 23 corresponding to the outer locking plug 13 are formed on the outer circumference of the outer periphery of the end which is equal to the inner diameter. The arcuate grooves 23 have different lengths extending from the end of the cylinder 22 toward the handle 21.

When using this lock, first, the cylinder 22 of the key 20 is inserted into the first shaft hole 111. Then, the upper portion of the outer lock stopper 13 is fitted into the corresponding arcuate groove 23, and the inner lock stopper 15 and the outer lock stopper 13 are pressed and moved inward according to their lengths. When the contact surfaces of the inner lock stopper 15 and the outer lock stopper 13 and the contact surfaces of the inner lock stopper seats 14 and 12 are exactly matched, the operator turns the handle 21 and the circular groove 23 is formed by the force of the cylinder 22. The lock core 122 can be rotated via the outer lock plug 13. The lock 122 can be locked or unlocked by rotating the lock 122.

[0007]

[Problems to be solved by the device]

 The conventional umebana-shaped tablet as described above has a drawback in that the effect of preventing theft is not so good. The main reason for this is that in order to fit the arcuate groove 23 of the key, it is necessary to expose the outside of the first axial hole 111 in the part where the outer locking plug 13 is present, so that the thief can enter the lock entrance. This is because the positions of all the outer locking plugs 13 can be known from the end.

It is an object of the present invention to provide a plum blossom-shaped lock which has an excellent effect of preventing theft by exposing the outer stopper.

[0009]

[Means for Solving the Problems]

 In the present invention, the tubular outer shell 32 includes a tubular outer shell 32, an outer locking plug seat 34, and an inner locking plug seat 36. The tubular outer shell 32 has a first axial hole 321 having an inner diameter that gradually increases. , A second shaft hole 322, and a third shaft hole 323 are provided so as to penetrate on the same center line, and a first shoulder portion 324 is formed at a portion adjacent to the first shaft hole 321 and the second shaft hole 322. A second shoulder portion 325 is formed at a portion adjacent to the second shaft hole 322 and the third shaft hole 323, and a keyway 326 extends from the outside to the inside of the inner wall of the first shaft hole 321. The outer locking cap seat 34 is provided inside the outer shell 32 so as to be rotatable about a center line, and is extended toward a predetermined direction (parallel to the center line). 44 and a lock 46, and a plurality of perforations 42 and 43 are provided, and the outer locking plugs 50 and 51 slide in the perforations 42 and 43. , The inner lock stopper seat 36 is fixed inside the outer shell 32, and a plurality of recessed holes 64 are provided corresponding to the perforations 42 and 43. And the inner lock stopper 70 is inserted, and the spring 66 urges the outer lock stopper 50, 51 via the inner lock stopper 70 to press the outer lock stopper 50, 51 against the first shoulder portion 324. It is characterized by being.

In addition to that, the minimum distance from the outer peripheral surface of at least one outer locking plug 50 to the center of the outer shell 32 is larger than the radius of the first shaft hole 321. By adopting this configuration, it is possible to obtain a plum blossom-shaped lock with an excellent antitheft effect.

[0011]

[Action]

 First, the cylindrical main body 84 of the key 80 is inserted into the outer shell 32 so that the positioning protrusion 85 is aligned with the keyway 326 of the outer shell 32. Then, the distal end of the push plate 86 bends slightly due to the restriction of the inner wall of the first shaft hole 321, so that it pushes outward while entering the second shaft hole 322. As a result, the push plate 86 is fitted between the first shoulder portion 324 and the corresponding outer side of the first outer lock stopper 50, and the first outer lock stopper 50 is pressed by the tip 88 of the push plate 86 at the same time. The second outer locking plug 51 can be pressed at the bottom of the recessed hole 81 of the tubular main body 84. The contact portion between the inner lock stopper 70 and the second outer lock stopper 51 becomes a contact surface between the inner lock stopper seat 36 and the lock stopper seat body 40 by adjusting the length of the second outer stopper 51 and the depth of the recessed hole 81. By making an exact match, the lock stopper 34 can be rotated by the key 80. This enables locking / unlocking.

[0012]

【Example】

 1 to 3 are views showing a plum blossom-shaped lock according to an embodiment of the present invention, FIG. 1 is a front view, FIG. 2 is a sectional view taken along line AA of FIG. 1, and FIG. 3 is BB of FIG. It is sectional drawing in a line. As shown in FIGS. 1 to 3, the lock 30 of the present embodiment is configured to include an outer shell 32 and elements such as an outer lock stopper seat 34 and an inner lock stopper seat 36 arranged in the outer shell 32. It

The outer shell 32 is a tubular body formed such that the first shaft hole 321, the second shaft hole 322, and the third shaft hole 323 pass through at the same center line. Has a predetermined length from the outside to the inside, and the third shaft hole 323 has a predetermined length from the inside to the outside.

The inner diameter of the third shaft hole 323 is larger than the inner diameter of the first shaft hole 321, and the second shaft hole 322 is between the first and second shaft holes 321 and 322. Therefore, a first shoulder portion 324 is formed inside the second shaft hole 322 at a portion adjacent to the first shaft hole 321 and the second shaft hole 322, and the second shaft hole 322 and the third shaft hole 323 are separated from each other. A second shoulder portion 325 is formed outside the second shaft hole 322 in the adjacent portion. A keyway 326 extending from the outside to the inside is formed on the inner wall of the first shaft hole 321.

The outer lock stopper seat 34 is arranged inside the outer shell 32 so as to be rotatable about a central axis. The cross section of the outer lock stopper seat 34 along the central axis has a cross shape, and includes a disk-shaped lock stopper seat body 40, a rod body 44, a lock core 46, a pair of outer lock stoppers 50, and two pairs of outer stoppers. It consists of each part of the lock 51.

The disk-shaped lock stopper seat body 40 has a pair of first perforations 42 penetrating the inside and the outside at an angle of 180 °, and two pairs of second perforations 43 interposed therebetween are also formed. There is. The outer diameter of the lock stopper seat body 40 is substantially equal to that of the third shaft hole 323, and the outer periphery of the lock stopper seat body 40 is in contact with the second shoulder portion 325. Further, the rod body 44 extends outward from the center of the lock stopper seat body 40 into the first and second shaft holes 321 and 322, and its diameter is smaller than the inner diameter of the first shaft hole 321.

The lock core 46 extends inward from the center of the lock stopper seat body 40 and has a predetermined length. Also, the pair of outer lock stoppers 50 and the two pairs of outer lock stoppers 51 have appropriate lengths, respectively, so that they can be smoothly moved in the direction parallel to the center line in the first and second perforations 42 and 43, respectively. Has been inserted into.

The inner lock stopper seat 36 is inserted into the third shaft hole 323, and is fixed by tightening with the pin 62 penetrating from the surface of the outer shell 32, and the lock stopper seat main body 40 is supported from the inside. The escape is prevented. Further, six recessed holes 64 are formed in the inner lock stopper seat 36, and the recessed holes 64 are bored inward from the outer side surface to a predetermined depth, and the first and second perforations 42, 4 are formed. It corresponds to the inside of 3. Further, a spring 66 and six inner lock plugs 70 of appropriate length biased by the spring 66 are inserted into the recessed hole 64. The inner lock 70 presses the other end against the first shoulder portion 324 via the corresponding first and second outer locks 50 and 51.

As shown in FIG. 2, the relationship between the first outer lock plug 50 and the first shaft hole 321 is that the minimum distance R1 from the outer peripheral surface of the first outer lock plug 50 to the center of the lock stopper seat body 40 is as follows. It is configured to be larger than the half diameter R2 of the first shaft hole 321. Therefore, the first outer locking plug 50 is completely hidden inside the first shoulder portion 324. As a result, it is possible to prevent the appearance of the first outer lock plug 50 from being detected from the outside of the outer shell 32.

Next, an embodiment of the key for opening and closing the above-mentioned plum blossom-shaped lock will be described with reference to FIGS. 7 and 8. The key 80 of this embodiment is made up of elements such as a thin and flat handle 82, a cylindrical main body 84, and a push plate 86. A handle 82 is attached to one end of the tubular main body 84, and a recessed hole 81 and a slit 83 extending in the direction of the handle 82 and having a predetermined length are formed at the other end. A raising portion 85 is provided. The recessed hole 81 is arranged at the outer ring edge of the tubular body 84, and the slit is penetrated from the inner circumference to the outer circumference of the tubular body 84, so that the push plate 86 is fitted into the tubular body 84, and further, It is fastened and fixed to the bottom of the tubular main body 84 at the central position by the screw 87. On the other hand, both ends of the push plate 86 correspond to the slits 83 and are extended outward with different lengths, and their ends are bent to a predetermined length in a direction perpendicular to the center line of the cylindrical body 84. ing.

When the plum blossom-shaped lock and key of the embodiment of the present invention configured as described above are used, first, the cylindrical main body 84 of the key 80, and the protrusion 85 for positioning thereof are used as the outer shell. It is inserted into the outer shell 32 in accordance with the keyway 326 of 32. Then, the end of the push plate 86 bends slightly due to the limitation of the inner wall of the first shaft hole 321, so that the end of the push plate 86 extends outward while entering the second shaft hole 322. As a result, the push plate 86 is fitted between the first shoulder portion 324 and the corresponding outer side of the first outer lock stopper 50, and the first outer lock stopper 50 is pressed by the tip 88 of the push plate 86 at the same time. The second outer locking plug 51 can be pressed at the bottom of the recessed hole 81 of the tubular main body 84. The contact portion between the inner lock stopper 70 and the second outer lock stopper 51 is the contact surface between the inner lock stopper seat 36 and the lock stopper seat body 40 due to the length of the second outer stopper 51 and the depth of the recessed hole 81. The outer lock stopper seat 34 can be rotated by the key 80 by exactly matching with. This enables locking / unlocking.

[0022]

[Effect of device]

 According to the present invention, by making the distance from the center line of the outer lock stopper seat to the outer peripheral surface of the first outer lock stopper larger than the radius of the first axial hole of the outer shell, the first outer lock stopper can be externalized. It will be possible to provide a plum blossom-shaped lock that can be used to prevent further knowledge and prevent theft.

[Brief description of drawings]

FIG. 1 is a front view showing a plum blossom-shaped lock according to an embodiment of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a sectional view taken along line BB in FIG.

FIG. 4 is a perspective view showing a key according to an embodiment of the present invention.

FIG. 5 is a sectional view showing a key of the embodiment of the present invention.

FIG. 6 is an exploded perspective view showing a conventional plum blossom-shaped lock.

FIG. 7 is a sectional view taken along the center line of a conventional plum blossom-shaped lock.

FIG. 8 is a front view showing a conventional plum blossom-shaped lock.

[Explanation of symbols]

 30 ... Lock 32 ... Outer shell 34 ... Outer lock stopper seat 36 ... Inner lock stopper seat 40 ... Lock stopper seat body 42 ... First perforation 43 ... Second perforation 44 ... Rod 46 ... Lock core 50 ... First outer lock stopper 51 ... 2nd outer lock plug 62 ... Pin 64 ... Recessed hole 70 ... Inner lock stopper 80 ... Key 81 ... Recessed hole 82 ... Handle 83 ... Slit 84 ... Cylindrical body 85 ... Convex part 86 ... Push plate 321 ... 1st Shaft hole 322 ... Second shaft hole 323 ... Third shaft hole 324 ... First shoulder portion 325 ... Second shoulder portion

Claims (8)

[Scope of utility model registration request] 1. A tubular outer shell (32) and an outer lock stopper (3).
4) and an inner lock stopper seat (36), and the tubular outer shell (32) has a first shaft hole (321), a second shaft hole (322), and a third shaft hole (321) whose inner diameters gradually increase. A shaft hole (323) is provided so as to penetrate on the same center line, and
The adjacent portion of the shaft hole (321) and the second shaft hole (322) is the first
A shoulder portion (324) is formed, and a second shaft hole (322) and a third
A second shoulder (325) is formed adjacent to the shaft hole (323), and a keyway (326) extends from the outside to the inside of the inner wall of the first shaft hole (321). The outer lock stopper seat (34) is disposed inside the outer shell (32) so as to be rotatable about a center line, and extends in a predetermined direction (parallel to the center line). Rod (44)
And a lock core (46) and a plurality of perforations (42, 43) are provided in the perforations (42, 43).
1) is slidably inserted, the inner lock stopper seat (36) is fixed inside the outer shell (32), and a plurality of recessed holes (64) corresponding to the perforations (42, 43). A spring (66) and an inner lock stopper (70) are inserted into the recessed hole (64), and the spring (66) is connected to the outer lock stopper (50, 5) via the inner lock stopper (70).
1) urging the outer stoppers (50, 51) to the first shoulder (3
24) A plum blossom-shaped lock characterized in that it is configured to press against. 2. At least one outer locking plug (50) as defined above.
The minimum distance from the outer peripheral surface of the shell to the center of the outer shell (32) is the first
The plum blossom-shaped lock according to claim 1, characterized in that it is larger than the radius of the shaft hole (321). 3. A key for use in the plum blossom-shaped lock according to claim 1 or 2, wherein the key comprises a handle (82), a tubular body (84), a push plate (86) and the like. The key is characterized in that the push plate (86) has a predetermined length extending outward from the cylindrical body (84). 4. A predetermined portion of the push plate (86) has appropriate elasticity so that it can move in a slit (83) provided in the tubular main body (84). Key described. 5. The pushing plate (86) is a thin piece having a predetermined length, and a predetermined portion thereof is connected to a tubular body (84) to be integrally formed, and a center line of the tubular body (84). 4. The key according to claim 3, wherein the key has a predetermined length extending in a direction perpendicular to and intersecting with. 6. The key according to claim 5, wherein the thin piece of the push plate (86) has a predetermined length from the end of the tubular body (84). 7. The key according to claim 3, wherein a slit (83) is provided at a position corresponding to the push plate (86) at an end of the cylindrical main body (84). 8. The slit (83) has a cylindrical body (8).
The key according to claim 7, wherein the key is extended from the end of 4) in parallel with the center line to a predetermined length.