JPH1181756A - Lock of slide cover - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate locking by arranging a locking arm to be engaged with a lock plate to be urged by a lock spring in the direction of locking, providing a closing sensing part and an engagement projection, and urging a lock stopper by a stopper spring. SOLUTION: A key is mounted on a lock to rotate a rotor 17, unlocking operation is performed to rotate a lock plate 19 counterclockwise, and the hook part 21a of a locking arm 21 is removed from a part to be locked 12. Thereafter, a slide cover 1 is fully opened to expose a handle, the key is inserted to be unlocked, and handle operation is performed to open a door panel. After the door panel is closed, the handle is pressed in, locking is performed to close the slide cover 1, and a lock stopper 26 is removed from an engagement stage part 20 through a closing sensing part 28. Next, the hook part 21a of the locking arm 21 is engaged with a part to be locked 12, and the slide cover 1 is in a locked state. Thereby the slide cover 1 is locked only by closing the slide cover 1, and locking operation by the key can be easily performed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to locking and unlocking a slide cover which opens and closes the surface of a locking device or the like when it is closed, in order to enhance the theft protection of a locking device or the like provided on a door panel of a vending machine. The present invention relates to a lock device for a slide cover.

[0002]

2. Description of the Related Art A locking device provided on a door panel of a vending machine can be locked and unlocked with a regular key owned by a manager, thereby preventing others from opening the door panel and stealing the product without permission. doing. However, in the nighttime when traffic is cut off, illegal unlocking using a picking tool, or a malicious theft accident that punctures and breaks the locking device with a drill and forcibly opens the door panel occurs. There is.

Various methods have been devised to prevent theft accidents due to unauthorized unlocking or destruction of the locking device. The locking device has a structure that is hard to be picked or a method that incorporates a high-hardness material to have a structure that is hard to be broken. In addition, a double locking system in which a mechanism for preventing the door panel from being opened is separately provided, and a locking device is provided in this mechanism, or a double locking system in which a sliding cover is provided on the surface of the locking device and the sliding cover is provided with a locking device. (See JP-A-9-78898).

[0004] "Anti-theft cover device" described in the above publication
A base having an opening is attached to a position where the entire surface of the protruding handle mounted on the door panel and the locking device provided on the handle is covered, and a lock box is provided on the base so as to be slidable and that opens and closes the opening. Is provided. The cover box is locked with the opening closed, and can be moved in the direction to open the opening by unlocking, and when the locking device of the handle is unlocked through the opening, the handle protrudes to the front and the rotation operation becomes possible By turning the handle in the unlocking direction, the door panel can be opened.

[0005]

In such a double locking system, the time required to close the cover box and the time required to lock the cover box after locking the locking device of the handle are required. The time required for locking and unlocking is about twice as large as that of the non-locking method, and there is a problem that it becomes cumbersome. An object of the present invention is to provide a locking device for a slide cover that solves the above-mentioned problem and does not require a troublesome locking operation.

[0006]

In order to achieve the above object, a slide cover locking device according to the present invention comprises a cover base fixed to a panel and having an opening exposing the panel, a slide cover for opening and closing the opening. Slidably mounted,
In a locking device for locking and unlocking the slide cover with the opening closed, a locked portion is provided on a back surface of a front end portion on a closed side of the slide cover, and a rear end portion of a locked rotor attached to the cover base. A lock plate fixed to the lock plate is provided with an engaging step formed on the outer peripheral surface thereof and a locking arm which engages with the locked portion when rotated in the locking direction, and attaches the lock plate in the locking direction. A biasing lock spring, wherein a lock stopper pivotally mounted in the cover base is pushed by the slide cover when closed, and the engagement stage is pushed when the closure sensor is pushed. A stopper spring for urging the lock stopper to rotate in a direction in which the closing sensor protrudes toward the slide cover; It is intended.

Alternatively, in the lock device for a slide cover according to the present invention, a slide cover for opening and closing the opening is slidably mounted on a cover base fixed to the panel and having an opening exposing the panel, and the opening is closed. In the locking device for locking and unlocking the slide cover, a locked portion is projected from a back surface of a front end portion on a closed side of the slide cover, and is fixed to a rear end portion of a lock rotor attached to the cover base. A lock plate is provided with a circumferentially inclined surface inclined in the circumferential direction, and a cam surface provided with a locking surface and an unlocking surface connected to both ends of the circumferential inclined surface, respectively. A spring for providing a locking surface for engaging with the locked portion of the slide cover at the time of closing and an inclined surface formed on a side opposite to the locking surface at a distal end, and urging the locking member in a distal direction. The provided with a pressing protrusion for pressing on the cam surface by urging of the spring are those provided to the locking member.

One of the sliding surfaces of the cover base and the slide cover is provided with an opening regulating groove parallel to the opening / closing direction of the slide cover, and the other is provided with a steel ball and the steel ball in a hole with a bottom provided in the bottom. A pressing spring for pressing the restriction groove can be inserted. Alternatively, a rack parallel to the opening and closing direction of the slide cover is provided on the back surface of the slide cover,
By providing a one-way damper on the cover base and fixing a shaft of a pinion that meshes with the rack to the one-way damper, the movement in the closing direction of the slide cover can be made lighter than the movement in the opening direction.

[0009]

1 to 11 show a first embodiment of the present invention. FIG. 1 shows a state in which a slide cover is in an open state. 2 is a front view of FIG. 1, FIG. 3 is a side view of FIG. 1, and FIG. 4 is a rear view of FIG. As shown in FIG. 1, the slide cover 1 is slidably mounted on a cover base 2, and the cover base 2 is provided at a position of a protruding handle 3 of a door panel D.

The protruding handle 3 during locking is immersed in a handle accommodating recess formed on the front surface of a handle case 4 (see FIG. 5) provided on the door panel D. When the key is inserted into the keyhole 6 of FIG. 5 (see FIG. 1) and unlocked, the handle 3 protrudes (see FIG. 5) and can be turned. When the handle 3 is turned, the lock between the door panel D and the case of the vending machine body is released, and the door can be opened.

The cover base 2 is formed in a plate shape having a rectangular contour, a large rectangular opening 7 is provided at the center, and guide rails 8 are provided on inner surfaces on both sides of the opening 7. A thick portion 9 is formed on the bottom surface of the base member 1 and a stopper 10 is provided below the opening 7 (see FIGS. 1, 2, and 5). A plurality of bolts 11 protruding from the back surface of the cover base 2 are inserted into holes formed in the door panel D, tightened with nuts from the inside of the door panel D, and the cover base 2 is fixed to the door panel D, and The handle 3 is exposed.

The slide cover 1 slidably mounted on the guide rail 8 has a shaft-shaped locked portion 12 on the back surface of the front end (the upper end in FIG. 4) of the slide cover 1 in the closing direction.
When the cover 1 is fully opened, the stopper 1
A protrusion 13 for regulating the full opening amount that comes into contact with 0 is provided (see FIG. 4). The width of the slide cover 1 is substantially the same as the width of the cover base 2 (see FIG. 1).
The top end in the closing direction of the cover base 2 (upper side in FIG. 1) is a concave portion 14 (FIG. 5) formed on the back side of the thick portion 9 of the cover base 2.
Notches 1 on both sides
5 are provided (see FIG. 1).

A lock 16 which allows the rotor 17 to be rotated by a key magnet is inserted into and fixed to the thick portion 9 of the cover base 2, and the rear end of the rotor 17 of the lock 16 is a back surface of the thick portion 9. The central portion of the lock plate 19 is fixed to the rear end portion of the lock plate 19 (see FIGS. 4 and 5). On the substantially circular outer peripheral surface of the lock plate 19, an engagement step portion 20, a locking arm 21, and a spring support protrusion 22 are formed.

Hook 2 bent at the tip of locking arm 21
When the slide cover 1 is at the fully closed position, the hook-like portion 21a can be engaged with and disengaged from the locked portion 12. A spring support shaft 23 is provided upright on the bottom surface of the concave portion 18, and a lock spring 24 is stretched between the spring support shaft 23 and the spring support protrusion 22. Accordingly, the lock plate 19 is urged clockwise in FIG.

In FIG. 4, on the left side of the lock plate 19, a lock stopper 26 is pivotally mounted on a support shaft 25 erected in the concave portion 18. The lock stopper 26 has an engagement protrusion 27 which can be disengaged from the engagement step 20 of the lock plate 19.
Then, the closing sensor 28 is provided, and the stopper spring 50 is inserted between the closing sensor 28 and the side wall surface of the recess 18. Accordingly, the lock stopper 26 is urged in the counterclockwise direction in FIG. 4, and the closing sensor 28 projects in the direction of the opening 7.

Next, the operation of the lock device of the slide cover configured as described above will be described in the order of the locked state, the unlocked state, the opening operation, the closing operation, and the locking operation. In the locked state, the slide cover 1 completely closes the opening 7 and the notch 15 is in contact with the lower end surface of the thick portion 9 (see FIGS. 6, 8 and 9). Since the lock 16 is locked, the hook-shaped portion 21a of the locking arm 21 engages with the locked portion 12 of the lock plate 19 at the locking angle (see FIG. 7), and the slide cover 1 cannot be opened. . The lock stopper 26 is located at a position where the lock sensor 26 is rotated clockwise by pressing the closure sensing portion 28 by the tip (upper end) in the locking direction of the slide cover 1, and the engagement protrusion 27 is disengaged from the engagement step portion 20 ( (See FIG. 7).

In this locked state, when the key K is mounted on the lock 16, the rotor 17 becomes rotatable, and when the key K is rotated in the unlocking direction, the lock plate 19 is rotated.
Is rotated counterclockwise in FIG. 7 against the pulling force of the lock spring 24, and the hook-shaped portion 21a of the locking arm 21 is rotated.
Is released from the locked portion 12 so that the slide cover 1 can be opened (see FIG. 4), and the door detection lever 28 of the lock stopper 26 pushes the slide cover 1 to slightly open the slide cover 1. Since the locking projection 27 engages with the engaging step 20 moved downward, the lock stopper 26 does not rotate any more.

When the slide cover 1 is fully opened downward, the handle 3 is exposed from the opening 7 (see FIG. 1).
When a key is inserted into the keyhole 6 of the cylinder lock 5 and unlocked,
The handle 3 protrudes to a position where it can be turned (see FIG. 5). When the handle 3 is operated, the door panel D can be opened.

After closing the door panel D and pushing the handle 3 to lock it, the slide cover 1 is closed.
The lock stopper 26 that has pressed the closing sensing portion 28 rotates clockwise, the engagement protrusion 27 of the lock stopper 26 is disengaged from the engagement step portion 20, and the lock plate 19 receiving the urging force of the lock spring 24 is moved. Rotating in the locking direction, the lock portion 21a of the locking arm 21 engages with the locked portion 12,
The slide cover 1 is locked (return to the state of FIG. 7).
Therefore, the slide cover 1 is locked only by closing the slide cover 1, and the trouble of performing the locking operation by the key is eliminated.

Although the lock 16 of the magnet type is used in the first embodiment, a cylinder lock may be used.
Also, the slide cover 1 slightly pressed by the closing sensor 28
In order to prevent a sudden drop due to its own weight, a hole 29 with a bottom is provided on one of the sliding surfaces of the slide cover 1 and the cover base 2 (the cover base 2 in this embodiment). Then, a steel ball 30 and a spring 31 for urging the steel ball 30 in a protruding direction are inserted (see FIG. 10), and the other (to the slide cover 1 in this embodiment) is opened slightly from fully closed. An opening regulating groove 32 into which the steel ball 30 sometimes enters shallowly
(See FIG. 4).

When the slide cover 1 is fully closed, since the steel ball 30 is located at the lower end 32a of the opening regulating groove 32, the unlocking operation of the key K causes the slide cover 1 to be opened by its own weight by the unlocking operation of the key K. It can be moved until it is located at the upper end 32b of the restriction groove 32. When such a self-weight drop prevention mechanism is provided, the unlocking operation causes the lock portion 21a of the locking arm 21 to be disengaged from the locked portion 12, causing the slide cover 1 to fall under its own weight and opening the steel ball 30. End 3 of regulating groove 32
When reaching 2b, the steel ball 30 is lightly locked, and the slide cover 1 is temporarily stopped.

The position where the slide cover 1 temporarily stops is
As shown in FIG. 11, the slide cover 1 is at a position where the gap S is opened, the release is visually confirmed by this opening amount, and the danger due to a sharp drop is prevented. When the upper end of the slide cover 1 that has been stopped is pressed, the steel ball 30 gets over the end 32 a of the opening restriction groove 32,
The slide cover 1 can be fully opened as it is.

FIGS. 12 to 14 are views showing a second embodiment of the present invention. Differences from the first embodiment will be described.
A lock plate 33 is provided in place of the lock plate 19, a lock member 34 is provided in place of the lock stopper 26, and a locked part 35 is provided in place of the locked part 12. Although the lock 36 of the cylinder lock type is used in place of the lock 16 of the magnet type, the locks 16 or 36 can be selected and used in any of the first and second embodiments.

Since the other components of the second embodiment have the same functions as those of the first embodiment, the same reference numerals as in the first embodiment denote the same parts, and a detailed description thereof will be omitted. As shown in FIG.
The lock 36 is attached to the thick portion 9 of the cover base 2, and the central portion of the lock plate 33 is fixed to the rotor 37 of the lock 36 projecting from the back surface of the thick portion 9.

The lock plate 33 is formed with a sector-shaped projection 38 projecting from the outer surface of the circular central portion, and on the back surface of the sector-shaped projection 38, a circumferential inclined surface 39a inclined in the circumferential direction, and a circle. A cam surface 39 having a locking surface 39b and an unlocking surface 39c respectively connected to both ends of the circumferential inclined surface 39a is provided (see FIG. 14). The unlocking surface 39c is the locking surface 3
9b is located further away from the surface of the cover base 2 than 9b.

The lock member 34 is inserted into a through hole 40 provided in the cover base 2, and is locked by a spring 42 inserted between a spring receiver 41 erected on the back surface of the cover base 2 and the lock member 34. The member 34 is urged in a direction in which a front end portion (right end portion in FIG. 13) protrudes from the surface of the cover base 2, and a pushing projection 43 projecting upward from a rear end portion of the lock member 34 comes into pressure contact with the cam surface 39. .

The locked portion 35 of the slide cover 1 protrudes from the back surface of the front end of the slide cover 1 in the closing direction, and the front end of the lock member 34 engages with the locked portion 35 when the slide cover 1 is closed. A locking surface 34a is provided, and an inclined surface 34b is provided on a surface opposite to the locking surface 34a.

The operation of the lock device for the slide cover of the second embodiment configured as described above will be described in the order of a locked state, an unlocked state, an opening operation, a closing operation, and a locking operation. In the locked state, the slide cover 1 completely closes the opening 7 and the lock plate 33
Is at the locking angle, the pushing projection 43 of the locking member 34 abuts on the locking surface 39b of the cam surface 39, the locking member 34 urged in the protruding direction is at the protruding position, and the locking surface 34a is Since the slide cover 1 is engaged with the locked portion 35 of the slide cover 1, the slide cover 1 is locked (FIG. 1).
3, see FIG. 14).

When the key inserted into the key hole 44 of the lock 36 is rotated in the unlocking direction, the lock plate 33 rotates together with the rotor 37 in the counterclockwise direction in FIG. When the locking member 34 is pressed down, the locking member 34 is retracted, and the locking surface 34a is separated from the locked portion 35 at the position of the unlocking surface 39c, so that the slide cover 1 can be opened and closed, and the slide cover 1 is opened. When the key is returned to the locking angle and the key is pulled out, the pushing projection 43 is moved by the spring 42 along the circumferential inclined surface 39a, and the locking member 3 is moved.
4 returns to the locked position (see FIG. 13).

When the slide cover 1 is closed, the locked portion 35 is moved to a position just before the slide cover 1 is fully closed.
b, the lock member 34 pressed against the inclined surface 34b retreats, so that the slide cover 1 moves to the fully closed position,
When the locked portion 35 passes through the locking surface 34a, the lock member 34 projects again, and the locking surface 34a and the locked portion 35 are engaged, so that the slide cover 1 is locked.

When the slide cover 1 is unlocked, two racks 45 parallel to the opening and closing direction are provided on the back surface of the slide cover 1 as shown in FIG. A one-way damper 46 is provided on the cover base 2, and a pinion 47 meshing with the rack 45 is provided.
In addition, a shaft fixed to the one-way damper 46 is provided. The one-way damper 46 applies a load to the rotation of the pinion 47 when the slide cover 1 opens downward, and
Is prevented from falling sharply, and there is no load when the slide cover 1 is closed upward. The mechanism for preventing the sudden drop can be applied to any of the first and second embodiments.

[0032]

Since the present invention is configured as described above, it has the following effects. (1) Since the locking device of the slide cover of the present invention is automatically locked only by closing the slide cover, there is an effect that the troublesome troubles that occur in the double locking method are simplified. (2) The lock device for a slide cover of the present invention has an advantage that the structure is simple and the device can be provided at low cost. (3) In the lock device of the slide cover of the first embodiment, the slide cover is slightly opened by unlocking, so that the unlocking can be easily visually confirmed from the outside. (4) If a mechanism that engages the steel ball in the opening restriction groove or a mechanism that fixes the pinion that meshes with the rack to the one-way damper is provided, the slide cover may fall suddenly under its own weight upon unlocking. Can be prevented.

[Brief description of the drawings]

FIG. 1 is a perspective view of a lock device for a slide cover of a first embodiment when the slide cover is opened.

FIG. 2 is a front view of FIG.

FIG. 3 is a side view of FIG. 1;

FIG. 4 is a rear view of FIG. 1;

FIG. 5 is a longitudinal sectional view of the lock device of the slide cover illustrating a state where the slide cover is opened and the handle is projected.

FIG. 6 is a perspective view of a lock device of the slide cover in a locked state.

FIG. 7 is a rear view of the lock device of the slide cover in a locked state.

FIG. 8 is a front view of FIG. 7;

FIG. 9 is a side view of FIG. 7;

FIG. 10 is a longitudinal sectional view of a sudden drop prevention mechanism using steel balls.

FIG. 11 is a rear view of the lock device of the slide cover showing a state in which the slide cover is temporarily stopped by the sudden drop prevention mechanism using steel balls.

FIG. 12 is a front view of a lock device for a slide cover according to a second embodiment of the present invention, with the slide cover removed.

FIG. 13 is a longitudinal sectional view of FIG.

FIG. 14 is a rear view of FIG.

[Explanation of symbols]

 D Door panel 1 Slide cover 2 Cover base 7 Opening 12 Locked part 16 Lock 17 Rotor 19 Lock plate 20 Engagement step 21 Locking arm 21a Hook-shaped part 24 Lock spring 26 Lock stopper 27 Engagement protrusion 28 Closure sensing part 30 Steel Ball 31 Spring 32 Release restricting groove 33 Lock plate 34 Lock member 34a Locking surface 34b Inclined surface 35 Locked portion 36 Lock 37 Rotor 39 Cam surface 39a Circular inclined surface 39b Locking surface 39c Unlocking surface 42 Spring 43 Pushing projection 45 Rack 46 One-way damper 47 Pinion

Claims (4)

[Claims] 1. A lock for slidably mounting a slide cover for opening and closing the opening on a cover base fixed to the panel and having an opening for exposing the panel, and for locking and unlocking the slide cover with the opening closed. In the apparatus, a locked portion is provided on a back surface of a front end portion on a closed side of the slide cover, and a lock plate fixed to a rear end portion of a lock rotor attached to the cover base is formed on an outer peripheral surface. A locking arm that engages with the locked portion when rotated in the locking direction with the joint portion is provided, and a lock spring that urges the lock plate in the locking direction is provided, and is pivotally mounted in the cover base. A lock sensor that is pushed by the slide cover when the lock stopper is closed, and an engagement protrusion that is disengaged from the engagement step when the closure sensor is pushed. Kicking with, the closure sensing unit lock device of the slide cover comprising providing a stopper spring to turn biasing the lock stopper in a direction to protrude toward the sliding cover. 2. A lock that is slidably mounted on a cover base that is fixed to the panel and has an opening that exposes the panel, the slide cover that opens and closes the opening, and locks and unlocks the slide cover that closes the opening. In the apparatus, a locked portion is projected from a back surface of a front end portion on a closed side of the slide cover, and a lock plate fixed to a rear end portion of a lock rotor attached to the cover base is inclined in a circumferential direction. A cam surface provided with a locking surface and an unlocking surface connected to both ends of the circumferential inclined surface and the both ends of the circumferential inclined surface, and the tip of a lock member inserted into the cover base, A locking surface that engages with the locked portion, an inclined surface formed on the opposite side of the locking surface is provided, and a spring that biases the locking member in the distal direction is provided.
A lock device for a slide cover, wherein a pressing projection which presses against the cam surface by the bias of the spring is provided on the lock member. 3. A sliding ball is provided in one of the sliding surfaces of the cover base and the slide cover in parallel with the opening and closing direction of the slide cover. 3. The lock device for a slide cover according to claim 1, wherein a pressing spring for pressing the opening restricting groove is inserted. 4. A rack parallel to the opening and closing direction of the slide cover is provided on a back surface of the slide cover, a one-way damper is provided on the cover base, and a pinion shaft meshing with the rack is fixed to the one-way damper. By doing
3. The slide cover locking device according to claim 1, wherein the movement of the slide cover in the closing direction is made lighter than the movement in the opening direction.