JPH08289821A - Cabinet - Google Patents

Abstract

PURPOSE: To perform the closing operation of a spring-up type door from the position of an open state without a difficulty even when a drawer is locked by a safety locking mechanism. CONSTITUTION: The operation rod 13 of the safety locking mechanism for locking the remaining drawers to a storage position at the time of pulling out one drawer moves a lock lever 41 locking the spring-up door 3 to a drawer closing position to a door opening position at the time of moving into a direction for releasing the lock of the drawers. In the case the operation rod is operated and the drawer is locked to the storage position, when the spring-up door is in the open state, the lock lever is held at a door locking position by an operation control member 43. When the closing operation of the spring-up door in the open state is performed, the operation control member is pushed by the spring-up door and moved to a lever releasing position and the lock lever is released. Thus, the closed spring-up door is locked to the close position by the lock lever.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cabinet having a flip-up door that covers the front surfaces of a plurality of stages of drawers.

[0002]

2. Description of the Related Art Conventionally, a cabinet having a plurality of stages of drawers is generally provided with a locking device for locking all the drawers in order to keep the drawers secret. Further, in a cabinet having a plurality of stages of drawers, when the plurality of stages of drawers are pulled out at the same time, the center of gravity becomes unstable, and the cabinet may fall down. Therefore, it is disclosed in Japanese Utility Model Publication No. 56-20547. As described above, it is common to provide a safety locking device that prevents the drawer movement of another drawer while it is in use. Further, as disclosed in Japanese Utility Model Publication No. 63-13722, a cabinet in which both of the above devices are incorporated is also known.

There is also a cabinet equipped with a flip-up door that covers the front of each of a plurality of drawers. In this type of cabinet, when one of the above drawers is pulled out, all the other drawers are placed in the storage position. In conjunction with the safety locking device that locks,
There is a lock lever that locks the flip-up door at the front closed position of the drawer to prevent the flip-up door from being opened accidentally.

FIG. 13 is a block diagram showing a locked state of a conventional flip-up door. A rear end 101a is provided in an engaging hole 100a provided in an operating rod 100 which is a part of a safety locking device for a drawer (not shown). It is locked and the front end 101b is the flip-up door 102.
Lock lever 101 that can be locked in the engaging hole 102a of
It is rotatably provided on the cabinet body 103, and when the flip-up door 102 is locked by the lock lever 101, the flip-up door 102 is attracted by the magnet 104 provided on the cabinet body 103 side so that the flip-up door 102 is attracted. Vibration is prevented.

[0005]

However, in the conventional lock mechanism of the flip-up door, the lock lever 101 is interlocked with the lock operation of the drawer by the safety locking device of the drawer, that is, when the operating rod 100 is lowered. But the door 102
Since the structure is such that the lock lever is rotated to the position where it is locked at the drawer closed position, the safety locking device operates with the flip-up door 102 open, and when the operating rod 100 descends, the lock lever 101
Rotates to a position where it can be engaged with the engagement hole 102a of the flip-up door 102, and is in a protruding state even though the flip-up door 102 is not in the drawer closed position.

Therefore, even if the pop-up door 102 is to be closed, the protruding lock lever 101 cannot be closed due to an obstacle. Moreover, if the pop-up door 102 is carelessly closed, the lock lever 101 cannot be closed. Alternatively, there is a problem that the flip-up door 102 is damaged.

Therefore, an object of the present invention is to solve the above problems and to provide a cabinet in which the flip-up door can be closed without any trouble from the open position even if the drawer is locked by the safety locking mechanism. To provide.

[0008]

In order to solve the above-mentioned problems, the invention according to claim 1 has a plurality of stages of drawers housed in a cabinet body so that the drawers can be put in and taken out, and covers the front surface of each drawer, and the cabinet when opened. A flip-up door that can be stored in the main body, a safety locking mechanism that locks the remaining drawer in the storage position when any one drawer is pulled out, and a lock that locks the flip-up door in the drawer closed position. A lever, the safety locking mechanism has an operating rod vertically installed in the cabinet body so as to be vertically movable, and the lock lever is biased in a door locking direction by a spring member. Moves the lock lever to the door release position when the drawer moves in the unlocking direction, and the lock lever locks the door when the drawer is in the storage position. Position and door The lock lever is engaged so as to be movable between a release position, and the cabinet body is provided with an operation restricting member for locking the lock lever at a door locking position. The operation restricting member is biased to the lever locking position by the spring member, and is moved to the lever releasing position by the flip-up door when the flip-up door reaches the drawer closing position from the open position. It is arranged so as to be.

According to a second aspect of the present invention, one end of the spring member for urging the lock lever is locked to the lock lever and the other end is locked to the actuating rod.

According to a third aspect of the present invention, one end of a spring member for urging the lock lever is locked to the lock lever, and the other end is locked to a mounting member that pivotally supports the lock lever. And

[0011]

In the cabinet according to the first aspect, when the flip-up door is opened from the drawer closed position, the operation restricting member moves from the lever release position to the lever locking position, and the lock lever moves to the door release position. Lock. Therefore, when the other flip-up door is subsequently opened and the drawer inside is pulled out, the drawer inside the flip-up door that was opened earlier is locked in the storage position of the cabinet body by the safety locking mechanism. However, since the lock lever for locking the flip-up door at the drawer closed position is kept at the lever release position by the operation restricting member, the previously opened flip-up door can be moved to the drawer closed position without hindrance. It can be closed. Then, when the flip-up door reaches the drawer closed position, the operation restricting member is pushed by the flip-up door and moves to the lever release position, releasing the lock lever from the door release position. By moving to the door locking position by spring force, it engages with the flip-up door in the drawer closed state,
Lock the flip-up door in the drawer closed position. In this way, the previously opened flip-up door can be closed and locked in the drawer closed position without trouble even after the drawer inside the other pop-up door is pulled out. Therefore, the front surface of the drawer inside the previously opened flip-up door can be safely closed and protected by the flip-up door.

In the cabinet according to claim 2,
Since one end of the spring member for urging the lock lever in the lever locking direction is locked to the lock lever and the other end to the operating rod, the lock lever is moved when the operating rod is moved in the drawer unlocking direction. It is possible to keep the spring force of the spring member that biases the spring constant. Therefore, the operating rod can be operated in the unlocking direction of the drawer with a light force.

In the cabinet according to claim 3,
One end of the spring member that biases the lock lever is locked to the lock lever, and the other end is locked to the mounting member that pivotally supports the lock lever, so the lock is locked when the operating rod is moved in the unlocking direction of the drawer. Although the spring force of the spring member for urging the lever increases, the spring member can be incorporated into the mounting member together with the lock lever in advance, the structure is simplified, the number of parts is reduced, and the parts for the cabinet main body are reduced. Assembly work becomes easy.

[0014]

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

FIG. 1 is a perspective view of an embodiment of the present invention, and FIG. 2 is a vertical cross-sectional view of this embodiment. The cabinet 1 has a cabinet body 2 whose front surface is open. A plurality of stages (three stages are shown in the present embodiment) of drawers 4 whose front faces are open are accommodated so that they can be pulled out. In addition, the flip-up door 3 for closing the front of the drawer 4
Is a storage unit 6 provided in the main body 2 corresponding to each drawer 4.
Can be stored in and is pulled out of the storage section 6,
Moreover, the front surface of each drawer 4 can be covered by being rotated downward.

FIG. 3 is a front view showing the main part of the safety locking mechanism of this embodiment, FIG. 4 is an exploded perspective view of the main part of the safety locking mechanism, and FIG. 5 is a sectional view taken along the line AA in FIG. 6 is a cross-sectional view taken along the line BB in FIG. 3, and FIG. 7 is a cross-sectional view taken along the line CC in FIG. 3, in which the inside of the cabinet body 2 of the cabinet 1 is provided on one side (the left side in the figure) of the drawer 4. The operating rod 13 of the safety locking mechanism 12 is vertically installed so as to be vertically movable. FIG.
As shown in FIG. 3, an elastic plastic engaging piece 14 is provided on the upper end of the operating rod 13, and the engaging piece 14 can be engaged with the operating rod 13 above the operating rod 13 in the cabinet body 2. A catch member 15 is provided.

Engagement pins 16 are provided on the left side surface of each drawer 4, and three pin guides corresponding to each engagement pin 16 are provided on the operating rod 13 so as to be able to abut the engagement pin 16. 17 are provided. Each pin guide 17 is formed with an inclined groove 17a that allows the engaging pin 16 to pass therethrough, and the inclined groove 17a is formed on the side of the drawer 4. The inclined groove 17a has a corresponding engaging pin when the operating rod 13 is at the upper and lower end positions. 16 extends obliquely from the lower rear end of the pin guide 17 toward the upper front end thereof so that the pin 16 can pass through the inclined groove 17a. Therefore, since the engagement pin 16 can pass through the inclined groove 17 of the pin guide 17 when the operating rod 13 is at the upper end position, one of the drawers 4 can be pulled out from the cabinet body 2. Further, when any one of the drawers 4 is pulled out, when the engagement pin 16 passes through the inclined groove 17a of the pin guide 17 from the rear side to the front side, the engaging pin 16 acts on the pin guide 17 to push down the operating rod 13. When the operating rod 13 is pushed down to the lower end position, the other pin guides 17 come into contact with the corresponding engaging pins 16 of the drawer 4, so that the remaining drawers 4 are safely locked in the storage position. It will be.

When the operating rod 13 is at the upper end position, the catch member 15 engages with the engaging piece 14 of the operating rod 13 to hold the operating rod 13 at the upper end position. Such a catch member 15 is the cabinet body 2
Although it may be fixed inside, in the present embodiment, the catch member 15 also performs the locking operation of locking all the drawers 4 in the storage position in cooperation with the operating rod 13 and the locking mechanism 21 described later. It has become.

That is, the catch member 15 is vertically movable between a position for holding the operating rod 13 at the upper end position and a position for holding the operating rod 13 at the lower end position.
When 5 is at the lower end position, the operating rod 13 is held at the lower end position, so that all the drawers 4 cannot be pulled out.

The locking mechanism 21 has a key insertion portion 22, a key rod 23 which is rotated in association with forward and reverse movements of the key insertion portion 22 by a key operation, and one end (left side) of the key rod 23. It has a catch member actuating lever 24 which is fixed and whose tip engages with the catch member 15, and which moves the catch member 15 up and down by the rotation of the key rod 23.

As shown in FIGS. 3 and 4, the catch member 15 has a catch piece 18 known per se, which has an engaging hole for snap-fitting the engaging piece 14 of the operating rod 13.
A catch mounting plate 19 for holding the catch piece 18 is provided, and an engaging hole 19a for engaging a pin 25 fixed to the tip of the catch member operating lever 24 is formed in the upper end portion of the catch mounting plate 19. There is. In addition, in this embodiment, the operating rod 13 has a substantially U-shaped cross section, and a plastic slide guide 20 slidably engaged with the concave inner surface of the operating rod 13 is provided at the lower end portion of the catch mounting plate 19. It is installed. This slide guide 20 is provided with the operating rod 1.
3 or when the catch mounting plate 19 is moved up and down, they smoothly move relative to each other to prevent noise from being generated.

As shown in FIGS. 3, 4 and 7, in the present embodiment, the locking mechanism 21 is vertically arranged on the right inner side of the cabinet body 2 so as to be vertically movable so as to face the operating rod 13. A rod 26 and a key operating lever 27 which is fixed to the other end (right side) of the key rod 23, a tip of which engages with the operating rod 26, and which moves the operating rod 26 up and down in response to rotation of the key rod 23; have. Also, on the right side surface of each drawer 4, a locking pin 2
8 are provided in a protruding manner, and three stoppers 2 corresponding to the respective locking pins 28 and capable of abutting the locking pins 28 on the operating rod 26.
9 are provided. The locking pin 28 of each drawer 4 is in a position where it can pass under the corresponding stopper 29 when the operating rod 26 is at the upper end position of the vertical movement section, and the operating rod 2
When 6 is in the lower end position, it is in a position where it abuts the rear end of the stopper 29.

Here, the operating rod 13 and the operating rod 26 are
The drawers 4 are arranged on one side and the other side of the drawer 4 substantially symmetrically and in a well-balanced manner, and the key insertion portion 22 is arranged on the upper front portion of the cabinet body 2 substantially in the center. The key bar 23 is a square bar and extends substantially horizontally from the vicinity of the upper end of the operating rod 26 to the vicinity of the upper end of the catch member 17, and at a substantially central portion thereof, the key operating tool 30 as a rotary connecting member and the crank. It is connected to the key insertion portion 22 via a pin 31.

As shown in FIG. 5, the key operating tool 30 is rotatably held in the key mounting case 32 fixed to the folded-back portion 5a of the upper wall plate 5 of the cabinet body 2 by the hook portion 33a and the screw 34. Has been done. Also, FIGS. 3, 6 and 7
As shown in, the catch member actuating lever 24 and the key actuating lever 27 are rotatably supported by guides 35 and 36 fitted to the folded-back portion 5a of the upper wall plate 5 of the cabinet body 2, respectively.

FIG. 8 is a structural view showing the side surface of the lock lever portion of the flip-up door in this embodiment, and FIG. 9 is a view of D in FIG.
10 is a cross-sectional view taken along the line D, FIGS. 10A and 10B are explanatory views of the operation of the lock lever portion, and FIG. 11 is a rear view of the lock lever portion. Referring to these drawings, a pin 40a is provided in a protruding manner on a resin-made mounting member 40 that is fixed (for example, screwed) to the side wall of the cabinet body 2 of the cabinet 1. The central portion is pivotally supported. One end (left side) of the lock lever 41 is formed with a claw portion 41a capable of engaging with the receiving hole 3a formed in the inner wall of the flip-up door 3, and the other end (right side) is provided with the safety lock. Actuating rod 13 that constitutes the mechanism 12
A bent portion 41b that engages with the engaging hole 13a that is formed in the base is formed. Since the engaging hole 13a of the operating rod 13 is a long hole in the vertical direction, when the operating rod 13 is at the drawer locking position shown in FIG. 10 (b), the bent portion 41b of the lock lever 41 is engaged. It can be moved up and down in the hole 13a, so that the lock lever 41 can be moved between the door locking position (the position shown in FIG. 10B) and the door release position (the position shown in FIG. 10A). is there. The lower end of the bent portion 41b of the lock lever 41 is engaged with the upper end of the coil spring 42 whose lower end is engaged with the actuating rod 13, and the claw portion 41a is attached to the lock lever 41 of the flip-up door 3. A biasing force (clockwise turning force) in a direction of engaging with the receiving hole 3a is applied.

Further, at the upper left portion of the mounting member 40, a protrusion piece 43a bent toward the flip-up door 3 side is formed at the upper end, and a hanging piece detachable from the upper step portion 41c of the lock lever 41 is formed at the lower end. A central portion 43c of the operation restricting member 43 having 43b formed therein is rotatably supported. The protrusion 43a projects forward from the operation restricting member 43, and the hanging piece 43a
A torsion spring 44 is provided which applies a biasing force (counterclockwise turning force) so that b is engaged with the lock lever 41. Further, a magnet 45 that attracts the flip-up door 3 is provided at the lower left part of the mounting member 40.

The states shown in FIGS. 10 (a) and 11 are:
As described above, the safety locking mechanism 12 operates so that the remaining drawers 4 are locked in the storage position of the cabinet body 2 when any one of the drawers 4 is pulled out. The flip-up door 3 in FIG.
3 receives the urging force of the torsion spring 44 and rotates counterclockwise about the central portion 43c, the hanging piece 43b engages with the upper step portion 41c of the lock lever 41, and the lock lever 41
Is held at the door locking position. At the position of the claw portion 41a, the claw portion 41a can be inserted into the receiving hole 3a of the flip-up door 3.

When the flip-up door 3 is rotated so as to cover the front surface of the drawer 4 in the above state, the inner wall of the flip-up door 3 comes into contact with the protruding piece 43a of the operation restricting member 43 (two-dot chain line in FIG. 8). As shown in FIG. 10B, the operation restricting member 43 is rotated clockwise against the biasing force of the torsion spring 44, and the locking of the lock lever 41 by the hanging piece 43b is released.
Then, the lock lever 41 receives the biasing force of the coil spring 42 and rotates about the pin 40a in the clockwise direction, that is, the door locking direction. By this rotation of the lock lever 41, the claw portion 41a engages with the upper end of the receiving hole 3a of the flip-up door 3 to lock the flip-up door 3 in the drawer closed position.

As described above, the operation restricting member 43 is provided with respect to the flip-up door 3 even if the safety locking mechanism 12 operates when the flip-up door 3 is not in the drawer closed position for covering the front of the drawer 4.
0 (a), the operation restricting member 43 does not hinder the rotation of the flip-up door 3 when the flip-up door 3 is rotated to cover the front surface of the drawer 4. 3 can be prevented from colliding with the operation regulating member 43 and causing damage.

In the cabinet having the above structure, the coil spring 4 for urging the lock lever 41 in the lever locking direction.
Since one end of 2 is locked to the lock lever 41 and the other end is locked to the operating rod 13, the spring force of the coil spring 42 is kept constant when the operating rod 13 is moved in the unlocking direction of the drawer 4. be able to. Therefore, the operating rod 13 can be operated with a light force in the unlocking direction of the drawer 4.

FIG. 12 shows another embodiment of the present invention. In this embodiment, a torsion spring 50 is used as a spring member for urging the lock lever in the door locking direction. One end of the torsion spring 50 pivotally supports the lock lever 41 and the other end pivotally supports the lock lever 41. It is locked to each of the mounting members 40. Therefore, although the spring force of the torsion spring 50 that urges the lock lever 41 when moving the operating rod 13 in the unlocking direction of the drawer 4, increases.
The torsion spring 50 can be incorporated in advance in the mounting member 40 together with the lock lever 41, the structure is simplified, the number of parts is reduced, and the work of assembling the parts to the cabinet body 2 is facilitated. In addition, the spring members 42, 50, etc. for urging the lock lever 41 in the door locking direction are omitted,
Even if the turning force in the door locking direction is generated by the weight of the lock lever 41, the same effect can be obtained.

[0032]

As is apparent from the above description, according to the present invention, the flip-up door that has been previously opened can be removed even after the drawer inside the other flip-up door is pulled out. Since the drawer can be closed without any trouble and locked at the drawer closed position, the front surface of the drawer inside the previously opened flip-up door can be safely closed and protected by the pop-up door. Therefore, it is possible to prevent damage to the flip-up door and the lock lever, and to provide a highly safe cabinet.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a cabinet of the present invention.

FIG. 2 is a longitudinal sectional view of the embodiment.

FIG. 3 is a front view showing a main part of the safety locking mechanism of the present embodiment.

FIG. 4 is an exploded perspective view of a main part of the safety locking mechanism of FIG.

5 is a cross-sectional view taken along the line AA in FIG.

FIG. 6 is a sectional view taken along line BB in FIG.

7 is a cross-sectional view taken along line CC in FIG.

FIG. 8 is a configuration diagram showing a side surface of a lock lever portion of the flip-up door of the present embodiment.

9 is a cross-sectional view taken along line DD in FIG.

FIG. 10 is an explanatory diagram of the operation of the lock lever portion.

FIG. 11 is a rear view of a lock lever portion.

FIG. 12 is a rear view showing another elastic member for urging the operation restricting member.

FIG. 13 is a configuration diagram showing a side surface of a lock lever portion of a conventional flip-up door.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cabinet 2 Main body 3 Lifting door 4 Drawer 12 Safety locking mechanism 13 Operating rod 40 Support block 41 Lock lever 42 Coil spring 43 Operation restriction member 44 Torsion spring

Claims (3)

[Claims] 1. A plurality of stages of drawers that can be stored in and taken out of a cabinet body, a flip-up door that covers the front of each drawer and that can be stored in the cabinet body when opened, and any one of the drawers. It is equipped with a safety locking mechanism that locks the remaining drawer at the storage position when it is pulled out, and a lock lever that locks the flip-up door at the drawer closing position, and the lock lever is biased in the door locking direction by a spring member. The safety locking mechanism has an operating rod vertically installed in the cabinet body so as to be vertically movable, and the operating rod is configured to move the lock lever when moving in a direction to release the lock of the drawer. To the door release position and engage the lock lever so that the lock lever can move between the door lock position and the door release position when the drawer is in the position to lock the drawer in the storage position. Touching , The cabinet body is provided with an operation restricting member for locking the lock lever at a door locking position, and the operation restricting member is biased to a lever locking position by a spring member, The flip-up door is arranged to be moved to the lever release position by the flip-up door when it reaches the drawer closed position from the open position. 2. The cabinet according to claim 1, wherein one end of a spring member for urging the lock lever is locked to the lock lever and the other end is locked to the actuating rod. 3. A spring member for urging the lock lever, wherein one end of the spring member is locked to the lock lever and the other end is locked to a mounting member that pivotally supports the lock lever. Cabinet.