JPH09317280A - Door or drawer locking device for cabinet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide such a dial locking device without needing troublesome key management as being capable of opening a door or a drawer with one operation even if using a dial lock in a simple structure. SOLUTION: An arm is fixed to a latch lever 10 to rotationally move a latch pawl 13 and loosely fitted to a locking bar lever 20 for a button lock 14. When a door pull 7 is pulled in a unlocking condition, the gate bar lever 20 is moved to allow the rotationally movement of the door pull 7, so that a door 3 can be open with one pulling operation for the door pull 7. When the door 3 is closed, the gate bar lever 20 is forcibly moved to a position where each disc 15 can be rotated, so that smooth locking can be performed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a horizontally rotating door or drawer locking device for a cabinet.

[0002]

2. Description of the Related Art A door of a cabinet is provided with a latch pawl device that automatically engages the latch pawl with the cabinet body when the door is closed to hold the door closed. In many cases, when the pull tab provided on the door is pulled, the latch claw is rotated to release the engagement with the cabinet body (for example, the actual flat plate 1-1799).
No. 71, etc.). Similarly, in a cabinet equipped with a drawer, a latch device is provided so that the latch claw engages with the main body when the drawer is pushed into the cabinet body so that the drawer does not unexpectedly project in the pushed state. In many cases, when the pull tab provided on the end plate is pulled, the latch claw is disengaged from the cabinet body.

On the other hand, for example, in the case of locking a cabinet door, in addition to the type in which the latch pawl is non-rotatably held by a lock as in the above publication, and the latch pawl, the cabinet body is attached to the cabinet main body by the pivoting operation of the lever. There is a type that locks and disengages the lock fitting on the door and holds the lock fitting in a non-rotatable manner with the lock. It has an advantage that the structure can be simplified and the door can be easily opened by one action of only unlocking and then pulling the pull tab.

By the way, a manual lock used for a lock device such as a door is generally a cylinder lock which is unlocked by rotating a key, and a code which is unlocked by rotating an operating portion like a dial lock. The lock is roughly classified into a lock of the type, and the lock of the code type has an advantage that the trouble of possessing and managing the key can be eliminated. Also, some coded locks have a simple structure in which the bar does not move even when unlocked, and the bar is simply in a movable state. When the lock is used for a door or a drawer lock device, there is an advantage that it can be made compact and cost can be reduced.

However, in the code type lock having a structure in which the bar bar can only be moved even in the unlocked state, in order to open or lock the door, the lever for moving the bar bar is used. Since a handle and a handle are required, there is a problem that the door cannot be opened by one action by only pulling the pull tab. An object of the present invention is to provide a locking device that solves this problem.

[0006]

In order to achieve this object, the present invention provides "a cabinet main body having a front opening and a horizontally rotatable door for closing the opening of the cabinet main body, and the back side of the door. In a cabinet having a latch claw that engages and disengages with the cabinet body and a pull tab for opening the door by disengaging the latch claw from the main body, a pull tab on the back side of the door In the vicinity of the lock, a lock that can be unlocked by moving the bar when the numbers such as the numbers match when the push button is operated is attached so that the numbers can be operated from the front of the door. The lock bar and the pull tab are interlocked so that when the pull tab is operated in the unlocked state, the lock bar moves.

In addition, "a drawer is mounted on a cabinet body so that it can be moved back and forth, and a latch claw that engages and disengages with the cabinet body with a door closed is provided on the side surface of the drawer and the like. In a cabinet provided with a puller for disengaging the latch claw from the cabinet body and pulling out the drawer, when the sign of the number or the like coincides with the inside of the end plate of the drawer by operating the push button or the like, there is a bar bar. A lock that can be moved and unlocked is attached so that the code can be operated from the front of the door, and when the lock bar and the pull tab are operated in the unlocked state, the lock bar moves. It is configured so that they will be interlocked with each other.

[0008]

With this structure, since the lock bar moves in conjunction with the pull tab of the latch device in the unlocked state, the door can be opened by one-touch operation by simply pulling the pull tab after unlocking. You can open it or pull out the drawer. Also, when the door is closed or the drawer is pushed in, the bar bar moves to a lockable state, so there is no problem in locking.

As described above, in the unlocked state, the bar bar of the lock is forcibly moved in association with the pull tab of the latch device, so that the bar bar is simply movable in the unlocked state. Even when using the coded lock of
You can open the door or pull out the drawer with one action of pulling the pull tab. Thus, according to the present invention,
In the lock device that eliminates the hassle of key management,
Despite its compact structure, it has the effect of easily opening the door and pulling out the drawer.

[0010]

Next, embodiments of the present invention will be described with reference to the drawings. 1 to 7 show a first embodiment in which claim 1 is embodied. Of these, FIG. 1 (A) is a perspective view of a cabinet 1, FIG. 1 (B) is a broken perspective view of a main part, and FIG. FIG. 3 is a cross-sectional view taken along line II-II of FIG.
FIG. 4A is an exploded perspective view of the main part viewed from the back side.

The cabinet 1 includes a cabinet body 2 having an open front surface and a horizontally rotatable door 3 covering the opening.
And A pull case 5 having a pull hole 4 is attached to the back side of the door 3 at a mid-height position near the free end. The pull case 5 is covered with a back cover 6. For example, as shown in FIG. 4 (A), the pull tab 7 is placed inside the pull tab case 5.
The pull tab 7 is horizontally rotatably attached by a pair of upper and lower bushes 8 and 9. Upper and lower bush 8,9
Is formed with square bosses 8a and 9a which fit into square holes 7a formed so as to open vertically in the base of the pull tab 7.
Therefore, the pull tab 7 and the bushes 8 and 9 rotate integrally.
As shown by a dotted line and a one-dot chain line in FIG. 3, a finger inserted in the pull hole 4 can be pulled toward the pull tab 7 and pulled forward to be rotated.

Latch rods 10 and 11 each having a rectangular cross-section are arranged on the upper and lower sides of the pull tab case 5 in the vertical direction. The lower end of the upper latch rod 10 is fitted into the square hole 8b of the upper bush 8. , Lower latch rod 11 to lower bush 9
It is fitted in the square hole 9b. Upper and lower latch rods 10, 11
Is supported by bearing means (not shown) so as to be rotatable about its axis. Then, latch claws 13 extending toward the engagement holes 12 (see FIG. 1) formed in the cabinet body 2 are attached to the upper end of the upper latch rod 10 and the lower end of the lower latch rod 11. Latch rods 10 and 11 with the door 3 closed
When is rotated, the latch claw 13 disengages from the engagement hole 12.

A frame portion 5a formed on the upper portion of the pull case 5
A button type lock 14, which is a type of dial lock, is attached to the. 5 is a plan view showing the principle of the button type lock 14, FIG.
Are also front views, and these figures and FIGS. 2 and 4 (A)
As shown in FIG. 1, the button type lock 14 includes four discs 15 arranged in the left-right direction and horizontally rotatable, and each disc 1
5 is provided with a push button 16 and a slider 18 which is horizontally slidably arranged on the back surface.

Numbers from 0 to 9 are displayed on the outer peripheral surface of each disk 15, and the push button 16 and the disk 15 are set to one by one each time they are pushed by a ratchet mechanism (not shown). It is related to intermittent rotation by one number. The push button 16 and a part of the disk 15 are exposed on the front surface of the door 3. As shown in FIG. 5, each disk 15 has a cutout 18 formed therein. On the other hand, the slider 18 is provided with four protrusions 19 corresponding to the cutouts 18 of each disk 15 and a bar 20 protruding rearward. When the push buttons 16 are pressed and rotated so that the disks 15 are arranged in a predetermined number, the protrusions 19 of the sliders 18 can be fitted into the cutouts 18 of the disks 15, so that the sliders 18 and the bar levers. 20 is slidable from side to side and unlocked. As shown by the one-dot chain line in FIG.
When the notch 18 of the disk 15 does not coincide with the protrusion 20 of the slider 18, the slider 18 cannot be slid and is locked.

Then, as shown in FIGS. 1, 2 and 3,
At the lower end of the upper latch rod 10, as an example of an interlocking member, an arm 2 made of a metal plate extending along the back surface of the button lock 14.
1 is fixed, and the arm 21 is provided with a hole 22 into which the bar 20 of the slider 18 is fitted. The bar 20 is fitted in the hole 22 of the arm 21 with some play. Further, a tension spring 23 is attached between the pull tab case 5 and the arm 21 to urge the latch claw 13 into a posture in which it engages with the engagement hole 12 of the cabinet body 2.

The spring 23 may be provided at another portion. Further, the arm 21 may be integrally formed with the upper bush 8. In the above configuration, when the button type lock 14 is unlocked, when the pull tab 7 is pulled toward the front against the spring 23 as shown by the dotted line and the alternate long and short dash line in FIG. The movement of the bar 20 of the lock 14 allows the rotation of the pull tab 7 and the rotation of the upper and lower latch bars 10 and 11, so that the upper and lower latch claws 13 are engaged with the engagement holes 12 of the cabinet body 2. Therefore, the door 3 is opened by pulling the pull tab 7 as it is.

When the open door 3 is closed and rotated toward the cabinet main body 2, the latch claw 13 once escapes and rotates and then returns to its original position by the spring 23. The so-called kicking engagement causes the cabinet main body 2 to rotate. It fits into and engages with the engaging hole 12. In this state, the slider 18 of the button type lock 14 is in the lockable posture, so that the disk 15 is allowed to rotate, and therefore the push button 16 is locked at random. Then, the upper and lower latch rods 11 are held non-rotatably, and the door 3 is locked so as not to open.

Thus, the rotation of the pull tab 7 and the slider 1
Since the sliding of 8 is interlocked, the slider 7 can be slid when unlocked, even though it is a compact lock device using a button type lock 14 with a simple structure. You can open the door 3 with just one action. In the illustrated embodiment, the latch claw 13 and the pull tab 7 are configured to rotate integrally in both forward and reverse directions, but when the door 3 is closed and the latch claw 13 is engaged by kicking, the pull tab 7 is rotated. (And the latch rods 10 and 11)
The structure may not rotate. Also, button lock 14
As means for interlocking the bar bar 20 and the pull tab 7 of FIG.
You may use the link 21 'as shown in (B).

8 to 11 show a second embodiment embodying claim 1, of which FIG. 8 is a perspective view of a cabinet 1'provided with a drawer 25, and FIG. 9 is a perspective view of a lock mechanism. FIG. 10 is a front view of the lock mechanism, and FIG. 11 is a plan sectional view of essential parts. The drawer 25 is provided with a hollow end plate 26 having the pull hole 4 opened therein.
The pull tab 7 facing the is arranged. The upper end of the pull tab 7 is integrally fixed to a rotary shaft 27 that extends horizontally in the left-right direction.

A latch claw 13 is horizontally rotatably supported on one side surface of the drawer 25 near the end plate 26.
A spring (not shown) urges the cabinet main body 2'to engage with the posture. The support shaft 28 of the latch claw 13 is located inside the end plate 26.
A horizontal bent portion 28a is formed at the upper end of the rotary shaft 27, and a downward bent portion 27a is formed at an end portion of the rotary shaft 27 extending toward the latch claw 13 and the downward bent portion 27a is formed.
Is a horizontal bending portion 28a of the support shaft 28 in the latch claw 13.
Hit from behind.

Therefore, when the pull tab 7 is pulled forward, the latch claw 13 is rotated so as to be disengaged from the engaging portion (not shown) of the cabinet body 2 '. Inside the end plate 26, a button type lock 14 including a push button 16 and a disc 15 with a number is attached to a portion below the rotation shaft 27 so that the push button 16 and the number are exposed to the outside. ing. In the button type lock 14 of this embodiment, the bar 20 is projected upward, and the bar 20 moves horizontally in the horizontal direction. The disk 15 may have a structure that rotates horizontally or a structure that rotates around an axis extending in the left-right direction.

A link plate 29 having a substantially triangular shape in a plan view is provided in a portion above the button type lock 14 inside the end plate 26.
Is attached by a pin 30 so that it can be horizontally rotated around a portion behind the bar 20 and a hole 31 into which the bar 20 of the button lock 14 is loosely fitted is bored in the link plate 29. On the other hand, a rod 32 is hung from the rotating shaft 27, and the rod 32 is applied to a portion of the rear end surface of the link plate 29 that is far from the center of rotation. Further, a spring 33 is installed between the inner surface of the end plate 26 and the tip of the link plate 29 to urge the link plate 29 to rotate in the direction of pushing the rod 32 of the rotary shaft 27 backward. .

The link plate 29 and the rod 32 of the rotary shaft 27
Constitutes an interlocking member that interlocks the rotation of the pull tab 7 and the movement of the bar bar 20. In the above configuration, when the button lock 14 is unlocked, the bar 20 is in a state of being movable left and right, and the link plate 29 is allowed to rotate horizontally. When you pull it toward you,
By the pressing action of the rod 32 of FIG.
Since the latch claw 13 is allowed to rotate counterclockwise at 1 to escape and rotate from the cabinet body 2 ′, the drawer 25 can be pulled out as it is.

When the hand is released from the pull tab 7, the link plate 29 is rotated to the original posture by the spring 33, and the bar 20 is moved to the respective discs 1.
Since it returns to the position allowing the rotation of 5, the drawer 25 can be locked while being pushed into the cabinet body 2 ', and in that state, the latch claw 13 is held unrotatable and the drawer 25 cannot be pulled out. Locked in. In this case, since the button lock 14 having a simple structure can be used, the lock device can have a compact structure which can be built in the end plate 26.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described modes, and can be embodied in various other modes. For example, the shape of the latch claw is not limited to the hook shape, but it may be formed into a perforated shape, and the latch claw may be fitted into or removed from the protrusion of the cabinet body.
Further, the operating means of the coded lock is not limited to the push button type, but may be a type in which one or a plurality of dials are rotated.

[Brief description of drawings]

FIG. 1 is a view showing a first embodiment, (A) is a perspective view of a cabinet, and (B) is a cutaway perspective view of a main part.

FIG. 2 is an exploded perspective view of a button lock and a pull case.

FIG. 3 is a sectional view taken along line III-III in FIG.

FIG. 4A is a separated perspective view of the lock device as seen from the rear, and FIG. 4B is a modified example.

FIG. 5 is a plan view showing the principle of a button lock.

FIG. 6 is a front view of FIG. 5;

FIG. 7 is a diagram showing an operation.

FIG. 8 is a perspective view of a cabinet according to a second embodiment.

FIG. 9 is a schematic perspective view of a lock mechanism.

FIG. 10 is a schematic front view of a lock mechanism.

FIG. 11 is a plan sectional view showing an operation.

[Explanation of symbols]

 1, 1 'Cabinet 2, 2' Cabinet body 3 Door 4 Puller hole 5 Puller case 7 Puller 12 Engagement hole 13 Latch claw 14 Button type lock 16 Push button 20 Arm bar 21 Arm 25 Drawer 26 End plate 29 Link plate 32 Rod

Claims (2)

[Claims] 1. A cabinet main body having a front opening, and a horizontally rotatable door that closes the opening of the cabinet main body. The cabinet main body is engaged with and disengaged from a rear side of the door near the free end. In a cabinet provided with a latch claw and a pull tab for opening the door by disengaging the latch claw from the main body, in the vicinity of the pull tab on the back side of the door, a code such as a number by operating a push button, etc. When the locks are coincident with each other, the lock bar that can be moved and unlocked is attached so that the code can be operated from the front of the door, and the lock bar and the pull tab are operated in the unlocked state. Then, the lock device for the door in the cabinet is characterized in that the bar bar is interlocked so as to move. 2. A drawer is mounted on a cabinet body so that it can be moved back and forth, and a latch claw for engaging and disengaging with the cabinet body with a door closed is provided on a side surface of the drawer and the like. In a cabinet provided with a puller for disengaging the latch claw from the cabinet body and pulling out the drawer, if the signs such as numbers are matched with the inside of the end plate of the drawer by operating a push button or the like, there is a bar bar. A lock that can be moved and unlocked is attached so that the code can be operated from the front of the door, and when the lock bar and the pull tab are operated in the unlocked state, the lock bar moves. The lock device for the drawer in the cabinet, which is characterized by interlocking like this.