JPH0729234U - Lock device - Google Patents

Abstract

(57) [Summary] [Purpose] The lock device installed on the door of vending machines
There was a problem that a malicious crime occurred in which the lock device was destroyed at night and the cylinder lock was removed to unlock the lock illegally. The present invention aims to solve such problems. A handle 14 is axially movable in a handle holder 7 rotatably inserted in a case 1, and a joint cam 24 is engaged with a rotor 23 of a cylinder lock 18 fitted to the front surface of the handle 14. Joint cam 2
4, an eccentric engaging projection 26 is provided, and an engaging concave portion 29 with which the engaging projection 26 engages is provided in a claw 35 urged in a direction in which the locking claw 30 at the tip is engaged with the case 1. Engagement recess 2
9 is provided with a release preventing recess 36 which is engaged when the claw moves more than when locked.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a handle-drawing-type locking device attached to a door of a vending machine.

[0002]

[Prior art]

 Regarding the handle pull-out type locking device, there are the techniques described in JP-A-4-115070 and JP-A-3-123061. As shown in the perspective view of FIG. 7, the handle pull-out type locking device has a lever storage recess 2 formed on the surface of a case 1 attached to the surface of a door, and a handle insertion hole at one end of the lever storage recess 2. 3 is provided.

On the back side of the case 1, there is provided a fixed part 4 of the same shape that is fitted into a rectangular hole provided in the door, and a handle is inserted into the inner peripheral surface of a cylindrical part 5 projecting from the fixed part 4. The hole 3 is extended. As shown in FIG. 8, the handle insertion hole 3 is provided with a bottomed claw engagement hole 6.

A cylindrical handle holder 7 that is rotatably inserted into the handle insertion hole 3 has a rear wall 8 at a rear end portion (right end portion in FIG. 8) and projects rearward from the rear wall 8. A male screw 9a is screwed on the tip of the shaft portion 9 penetrating the case 1, and the cam 10 and washer 11 inserted into the shaft portion 9 are fastened by a nut 12 screwed onto the male screw 9a. The handle holder 7 is provided with a claw sliding long hole 13 facing the claw locking hole 6 at a locking angle (see FIGS. 8 and 9).

The tubular portion 15 of the handle 14 is fitted inside the handle holder 7 so as to be movable in the axial direction. The handle 14 is composed of a tubular portion 15 and a grip portion 16 protruding from the tip of the tubular portion 15 (see FIG. 9), and is provided between the rear end surface of the tubular portion 16 and the rear wall 8 of the handle holder 7. The spring 17 is inserted (see FIG. 8). Therefore, the handle 14 is biased in a direction projecting from the front end face (left end face) of the handle holder 7.

A cylinder lock 18 is inserted into the front portion of the tubular portion 15, holes are provided at both ends of a rectangular recess 19 provided in the tubular portion 15, and a tip portion is inserted into the hole. The tip of the stopper 20 engages with the cylinder lock 18, and the stopper 20 is fixed in the rectangular recess 19 by the machine screw 21 (see FIG. 7). The cylinder lock 18 is provided with a keyhole 22 on the front surface, and the rotor 23 of the cylinder lock 18 is rotated within the range from the locking angle to the unlocking angle by the rotation operation of the key K 1 inserted in the keyhole 22 ( (See FIGS. 7 and 8).

The joint cam 24 rotatably inserted into the tubular portion 15 has a non-circular fitting recess 25 at the tip (left end) (see FIG. 8) and has the same contour. The tip of the rotor 23 fits into the fitting recess 25. An engaging projection 26 is provided at an eccentric position on the rear end of the joint cam 24 (see FIGS. 11 and 12).

The cylindrical portion 15 is provided with a claw housing hole 27 opening to the outer peripheral surface, and a claw 28 is housed in the claw housing hole 27. The claw 28 has an engaging recess 29 into which the engaging protrusion 26 is engaged (see FIG. 13), and an engaging claw 30 that is inserted into the claw sliding long hole 13 of the handle holder 7 at the upper end in FIG. And a spring 33 is inserted between a hole 31 with a bottom provided at the lower end and a spring recess 32 formed on the inner surface of the tubular portion 15 (see FIGS. 8 and 14). Therefore, the claw 28 is biased by the spring 33 in a direction projecting from the outer peripheral surface of the tubular portion 15.

In the locking device configured as described above, when locking, the handle holder 7 is at a locking angle, and the claw sliding long hole 13 of the handle holder 7 overlaps with the claw locking hole 6 of the case 1. . Further, since the handle 14 is retracted into the case 1 and the locking claw 30 of the claw 28 is engaged with the claw locking hole 6 of the case 1 via the claw sliding elongated hole 13 (see FIG. 8). ), The handle holder 7 is non-rotatably restrained, the handle 14 is immovable in the axial direction, and the grip portion 16 is held in the lever accommodating recess 2.

When the key K inserted in the key hole 22 is rotated in the unlocking direction, the joint cam 24 is rotated together with the rotor 23 in the same direction, and the engagement protrusion 26 located at a position deviated from the rotation center is closed. Since the engaging concave portion 29 of 28 is pushed downward in FIG. 8, the claw 28 is lowered. As the claw 28 descends, the locking claw 30 is disengaged from the claw locking hole 6 of the case 1 and is retracted into the claw sliding long hole 13, so that the handle claw 30 rotates and the locking claw 30 moves. Becomes movable along the claw sliding long hole 13, and the handle 14 pressed by the spring 17 projects from the front surface of the case 1.

When the handle portion 16 of the protruding handle 14 is gripped and rotated, the handle holder 7 rotates together with the handle 14, and the cam 10 fixed to the shaft portion 9 engages from a casing such as a vending machine. It is released and the door can be opened. The operation of locking the door with this locking device is the reverse operation of the unlocking operation described above. The locking device described above does not cause any problems as long as it is properly locked and unlocked, but it was not possible to prevent the following malicious unauthorized unlocking.

[0012]

[Problems to be solved by the device]

 When a vending machine is installed on the road, the lock device is destroyed at night when traffic is not passing and the cylinder lock 18 is removed, and the joint cam 24 that can be seen from the outside is rotated to immerse the claw 28. Therefore, there is a fear that the locking device may be unlocked illegally. The present invention aims to solve such a problem, and provides a lock device that cannot be unlocked illegally even if the lock device is destroyed and the cylinder lock 18 is removed.

[0013]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention provides a handle insertion hole opening on the front surface, a claw locking hole on the inner surface of the handle insertion hole, and a case fixed to a door, and the handle insertion hole. A handle holder that is rotatably inserted and that has an elongated hole for sliding a claw in the axial direction, a tubular portion that is fitted in the handle holder so as to be axially movable, and a handle portion that is connected to the tubular portion. A cylinder lock is fitted on the front surface of the above-mentioned tubular portion, and a handle having a claw accommodating hole that opens to the outer peripheral surface of the above-mentioned tubular portion; A joint cam fitted to the rotor of the cylinder lock and having an engaging projection at an eccentric position at the rear end portion, an engaging concave portion accommodated in the claw accommodating hole, into which the engaging projection is engaged, and an end portion. Claw with a locking claw formed on the A lock device, comprising: a spring for urging in a direction of engaging the claw locking hole via a sliding long hole, wherein the locking claw is disengaged from the claw locking hole by the cylinder lock. The engaging recess is provided with an unlocking preventing recess, into which the engaging protrusion engages when the claw is lifted by the spring, and the engaging protrusion is provided on the unlocking preventing wall of the unlocking preventing recess. Is abutted to prevent rotation of the joint cam.

[0014]

[Action]

 In the locking device configured as described above, in the locked state, since the locking claw is engaged with the claw locking hole of the case, the handle holder cannot rotate and the handle cannot move in the axial direction. Yes, handle operation is not possible. When the key inserted into the key hole of the cylinder lock is rotated in the unlocking direction, the joint cam rotates together with the rotor of the cylinder lock, and the engagement projection at the eccentric position of the joint cam moves into the engagement recess of the claw. When pushed, the locking claw of the claw separates from the claw locking hole of the case.

Therefore, the handle holder can be rotated and the handle can be moved in the axial direction, and the handle urged by the spring projects to the front surface of the case, and the handle can be operated. When the handle is rotated, the handle holder rotates together with the handle, the cam provided on the handle holder disengages from the door, and the door can be opened.

[0016] For a malicious crime in which the lock device is broken to remove the cylinder lock during locking and the lock is illegally unlocked, the joint cam disengaged from the rotor of the cylinder lock is rotatable. Therefore, it is possible to rotate more than the locking angle. Therefore, the claw protrudes more than when locking, and the joint cam that is pushed by the engaging projection in the engaging recess of the claw rotates more than the locking angle and the engaging projection engages with the unlock preventing recess of the claw. , The rotation of the joint cam in the unlocking direction is prevented. Therefore, even if the cylinder lock is removed, the lock device cannot be unlocked illegally.

[0017]

【Example】

 Since the present invention is an improvement of the conventional locking device and is the same as the conventional example except for the claw 35, parts other than the claw are denoted by the same reference numerals as those of the conventional example, and detailed description thereof will be omitted. FIG. 1 is a longitudinal sectional view of the lock device in a locked state, which is similar to FIG.

The claw 35 is provided with a locking claw 30 at its tip as shown in the front view of FIG. 3, FIG. 4 which is a view of the arrow Y of FIG. 3, and FIG. 5 showing the relationship between the handle 14 and the claw 35. The engaging recess 29 is provided at the center of the outer peripheral surface as in the conventional example, but the engaging recess 29 is continuously provided with the unlocking preventing recess 36 extending in the direction opposite to the locking claw 30. To be done.

Since the engagement recess 29 and the unlocking prevention recess 36 are formed by cutting out the outer peripheral surface of the claw 35, the joint cam 24 rotates in the unlocking direction in the engagement recess 29. A wall surface 29a is formed on which the engagement protrusion 26 is pressed when it is opened. The unlocking prevention recess 36 is a recess into which the engaging projection 26 is engaged when the joint cam 24 is rotated beyond the locking angle, and the unlocking prevention recess 36 is formed with an unlocking prevention wall surface 36a. (See FIG. 3).

Next, the operation of the lock device configured as described above will be described in the order of locked state, unlocking operation, and unauthorized unlocking during locking. As shown in FIG. 1, in the locked state, since the locking claw 30 protruding from the claw sliding long hole 13 of the handle holder 7 is engaged with the claw locking hole 6 of the case 1, the handle holder 7 is rotated. It is immovable and the handle 14 is immovable in the axial direction.

Therefore, the handle portion 16 of the handle 14 is held as it is accommodated in the lever accommodating recess 2, and the handle cannot be operated. The rotor 23 of the cylinder lock 18 is rotatable from the locking angle to the unlocking angle, and at the locking angle, the engaging projection 26 of the joint cam 24 contacts the boundary between the wall surface 29a and the unlocking prevention wall surface 36a. The claw 35, which is biased upward by the spring 33, is prevented from rising further (see FIG. 6 (A)).

When the key K inserted in the key hole 22 of the cylinder lock 18 is rotated in the unlocking direction, the joint cam 24 together with the rotor 23 of the cylinder lock 18 is rotated clockwise in FIG. 6B. , The engaging projection 26 at the eccentric position of the joint cam 24 pushes the wall surface 29a of the engaging recess 26 of the claw 35 downward, and the claw 35 moves downward to engage the claw 30 of the case 1. It is separated from the hole 6 and is inserted into the claw sliding long hole 13 of the handle holder 7 (see FIG. 6 (B)).

Therefore, the handle holder 7 can be rotated and the handle 14 can be moved in the axial direction, the handle 14 biased by the spring 17 projects to the front surface of the case 1, and the handle portion 16 moves to the lever. Since it pops out from the accommodation recess 2, the handle 14 can be gripped and the handle 14 can be rotated. When the handle 14 is rotated, the handle holder 7 is rotated together with the handle 14, the cam 10 provided on the handle holder 7 is disengaged from the door, and the door can be opened.

When the locking device is broken and the cylinder lock 18 is removed during locking, the joint cam 24 disengaged from the rotor 23 of the cylinder lock 18 becomes rotatable. Therefore, the engagement projection 26 of the joint cam 24 is pushed by the claw 35 urged by the spring 33, the joint cam 24 rotates more than the locking angle, and the engagement projection 26 prevents the claw 35 from unlocking. It engages with the recessed portion 36 (see FIG. 6C). On the other hand, the locking claw 30 of the claw 35 is completely inserted into the claw locking hole 6 (see FIG. 2).

Therefore, even if the cylinder lock 18 is removed and the joint cam 24 is rotated in the unlocking direction, the engaging protrusion 26 contacts the unlocking preventing wall surface 36a, so that the joint cam 24 is unlocked in the unlocking direction. It cannot rotate to. Further, since the locking claw 30 is engaged with the claw locking hole 6, the handle 14 cannot be rotated. Thus, unauthorized unlocking of the lock device is reliably prevented.

[0026]

[Effect of device]

 Since the present invention is configured as described above, the malicious crime of unlocking the lock device by removing the cylinder lock and illegally unlocking it is completely prevented, and at night when the human foot is lost. However, vending machines installed on the road are no longer damaged, and the security and reliability of the locking device are improved.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of a locking device in a locked state.

FIG. 2 is a vertical cross-sectional view of the lock device with the cylinder lock removed.

FIG. 3 is a front view of the claw of the lock device of the present invention.

FIG. 4 is a view on arrow Y of FIG.

FIG. 5 is a perspective view showing a relationship between a claw and a handle of the present invention.

6A to 6C are schematic diagrams illustrating the operation of the present invention.

FIG. 7 is a perspective view of a handle pull-out type lock device.

FIG. 8 is a vertical cross-sectional view of the lock device.

FIG. 9 is a side view of the handle pulled out from the handle holder.

FIG. 10 is an exploded perspective view of the handle excluding a claw and the like.

FIG. 11 is a side view of the joint cam.

FIG. 12 is a front view of FIG. 9.

FIG. 13 is a front view of a claw of a conventional locking device.

FIG. 14 is a view on arrow X in FIG. 11.

[Explanation of symbols]

 1 Case 3 Handle Insertion Hole 6 Claw Locking Hole 7 Handle Holder 13 Claw Sliding Long Hole 14 Handle 15 Cylindrical Part 16 Handle Part 17 Spring 18 Linda Lock 22 Keyhole 23 Rotor 24 Joint Cam 26 Engagement Protrusion 29 Engagement Recess 30 Locking claw 33 Spring 35 Claw 36 Release prevention recess 36a Release prevention wall

Claims (1)

[Scope of utility model registration request] 1. A case having a handle insertion hole opening to the front surface, a claw locking hole provided on the inner surface of the handle insertion hole, fixed to a door or the like, and a shaft rotatably inserted into the handle insertion hole. A handle holder having a long hole for sliding a claw in the direction, a tubular portion fitted in the handle holder so as to be movable in the axial direction, and a handle portion connected to the tubular portion, the front surface of the tubular portion A cylinder lock is fitted to the handle, and the handle has a claw receiving hole that opens to the outer peripheral surface of the cylinder, and the handle is rotatably inserted into the cylinder. A joint cam having an engaging projection at an eccentric position of an end, a claw housed in the claw housing hole, having an engaging recess into which the engaging projection engages, and having a locking claw formed at the end. , Engage the locking claw with the claw sliding long hole A lock device having a spring biased in a direction to engage with the stop hole, wherein the locking claw is engaged with and disengaged from the claw locking hole by the cylinder lock. An unlocking prevention concave portion into which the engaging projection engages when rising is continuously provided, and the engaging projection abuts against the unlocking preventing wall surface of the unlocking prevention concave portion to rotate the joint cam. A locking device characterized by being blocked.