JPS6313722Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention locks the drawers in a cabinet having multiple drawers, locks the other drawers so that they cannot be pulled out while one drawer is being drawn out, and prevents the cabinet from tilting forward or This relates to a safety locking device that prevents falls, and the safety locking operation can be performed extremely quietly.

Next, the details will be explained with reference to the illustrated embodiment. In FIG. 1, 1 is a cabinet body, 2,
2... is the drawer, 3 is the pull opening of drawer 2, and the second
In the figures below, numerals 4 and 5 are a locking key plate and a safety latching actuation plate, each having a substantially U-shaped cross section, which are installed vertically at the front and back of the inside of the opening of the main body 1, and the key plate 4 and the actuation plate 5 are the side plates of the main body. The supporting plate 7, which has a substantially concave cross-section and is fixed to the front reinforcing plate 6 of 1', is vertically slidably fitted into the front and rear grooves a and b, respectively, and is mounted in the front-rear direction (not shown). The main body fixing plate of the drawer suspension device prevents inward movement and is urged downward by gravity.

As shown in FIG. 5, the protrusion 7' between the grooves a and b of the support plate 7 has an engaging protrusion 8a at the front end and a locking piece at the rear end, as shown in FIG. Rotating plates 8, 8... each having a bent portion 8b are pivotally mounted 8',
The engaging protrusions 8a are respectively engaged and connected to engaging holes 4a formed at corresponding positions on the key board 4, so that each rotating plate 8 rotates as the key board 4 moves up and down. In contrast, there is a key plate 4 on the outside surface of each drawer 2.
A stopper piece 9 having an L-shaped cross section is provided in a protruding manner to be locked to the locking piece 8b of the rotary plate 8 which has been lowered in the raised position.

On the other hand, a mounting plate 10 having an inverted L-shaped cross section as shown in FIG.
1a, a lever plate 11 having a key rod receiving piece 11b formed at its inner end (right end) is pivoted to be vertically movable by a pin 11', and the receiving piece 11b is provided on the upper stile of the main body 1. A square-shaped bent portion 1 at the tip of a key rod 13 that moves in the left-right direction in conjunction with the cylinder lock 12 (Fig. 1)
3' are engaged, and the tip of the bent portion 13' is attached to the mounting plate 10.
The cylinder lock 1 is slidably fitted and supported in the support hole 10'' of the bearing plate 10', and the engagement protrusion 11a at the left end is engaged with the engagement hole 4b at the upper end of the key plate 4.
2, the key stick 13 moves to the left and the receiver piece 11
b is pressed down, and the key plate 4 rises via the lever plate 11, the stopper piece 9 of the drawer 2 is locked by the locking piece 8b of the rotating plate 8, and all the drawers 2 are locked. When the cylinder lock 12 is unlocked, all the drawers 2 are unlocked, contrary to the above. Instead of the lever plate 11, the key rod may be connected to the key plate via an L-shaped lever plate.

In addition, at a position corresponding to each drawer 2 on the actuating plate 5, as shown in FIG.
4 is installed by locking a locking protrusion 14c protruding from the back surface into a mounting hole drilled in the actuating plate 5, and on the other hand, the outer surface of each drawer 2, 2... An engagement pin 15 to be engaged is provided in a protruding manner. The rear end of the rotary plate 8 engages with the upper surface of the actuating tool 14 when the drawer is in the locked state to prevent it from rising.

Further, a mounting plate 16 is fixed to the upper end of the support plate 7 where the actuation plate 5 is fitted, and an elastic locking device 17 having a pair of elastic gripping pieces opening downward is attached to this. The mounting plate 18 at the upper end of the plate 5 is provided with a locking protrusion 19 having a tangled portion that engages with the elastic gripping piece.

FIG. 7 shows the locked state of the drawers, the key plate 4 is in the raised position, the stopper pieces 9 of each drawer 2, 2... are locked with the locking pieces 8b of the lowered rotary plate 8, and all the drawers are locked. It is locked, and the rear end of the rotating plate 8 engages with the upper surface of the actuating tool 14 to prevent the actuating plate 5 from rising.

Next, when the cylinder lock 12 is unlocked, the key plate 4 is lowered as shown in FIG. The locking of the operating tool 14 by the moving plate 8 is also released, and the engagement pins 15 of each drawer are aligned with the inclined grooves 14a.
Since it engages with the rear extending portion of the upper wall and faces the rear end of the inclined groove 14a, and is not locked with the lower locking surface 14b (see Fig. 7), all the drawers are in a state where they can be pulled out. However, when pulling out any one of them, for example, the upper drawer 2', when the engaging pin 15 passes through the inclined groove 14a, the actuating plate 5 is raised, and the raised actuating plate 5 is attached to the upper end. The locking protrusion 19 is locked to the elastic locking tool 17, and is reliably held in the upper position by its elasticity. As the actuating plate 5 rises, the locking surface 14b of each actuating tool 14 engages the engaging pin 1 of the drawer.
Since the drawer is raised to the locking position No. 5, no other drawer can be pulled out, and safety is ensured while the drawer is in use.

After use, when closing the drawer 2', the engaging pin 15 passes through the inclined groove 14a in the opposite manner to the above, thereby removing the locking protrusion 19 at the upper end from the elastic locking member 17 and lowering the actuating plate 5. Since the drawers are returned to their original positions, the engagement pins 15 are unlocked and all the drawers can be pulled out again.

Conventionally, this type of locking and safety locking device has, for example, a locking rod installed vertically inside the cabinet body so as to be able to slide up and down, and a locking pin is fixed at a corresponding position of each drawer, and a locking pin is fixed to the corresponding position of each drawer on the outside surface of each drawer. A stopper is attached to the locking pin in the raised position of the locking lever, and when the locking lever is being operated to lock or one drawer is being pulled out, the locking lever is raised and all drawers are being locked.
There is also a device that locks another drawer while one drawer is being drawn out, but in this device, the
In order to hold the locking lever in the raised position while the drawer is being pulled out, the drawer is provided with a rail with a downwardly sloped surface at the front, and a roller on the front and a locking lever on the rear inside the cabinet body. An interlocking plate with a pin is pivoted so that the front roller is in contact with the rail of the drawer, and the rear engagement pin is engaged with an engagement hole drilled corresponding to the locking rod, so that the drawer cannot be pulled out. , the above-mentioned slope raises the locking rod by pushing down the roller, and furthermore, the roller keeps in constant contact with the rail and holds the locking rod in the raised position, so there is no vibration when opening and closing the drawer or shock when the drawer is stopped. Alternatively, vibrations caused by irregularities on the rail surface are transmitted to the locking rod via the interlocking plate, causing rattling between the engaging pin of the interlocking plate and the engaging hole of the locking rod, and causing noise.

In the present invention, as described above, the locking tool 14 having the front downwardly inclined groove 14a and the locking surface 14b at the lower rear end is attached to the position corresponding to each drawer on the actuating plate 5, and the locking tool 14 is attached to the outer surface of the drawer 2. A pin 15 is provided to protrude and face the rear end of the inclined groove 14a, and the cabinet body 1 is provided with an elastic locking device 17 for holding the actuating plate 5 in the raised position until the drawn drawer 2 is closed. Therefore, in the drawer 2, the engagement pin 15 is aligned with the inclined groove 1.
Since the drawer only engages the actuating plate 5 for a very short time while passing through the drawer 4a, the vibration of the drawer during drawing is reduced.
Almost no impact is transmitted to the actuating plate 5, which has the advantage of extremely quiet operation. However, since the actuating plate 5 is only urged downward by its own weight, when all drawers are closed, This allows the cabinet to rise without being restrained by other objects, and therefore, the cabinet body 1 is not inhibited by shocks, vibrations, etc. during transportation, or when the cabinet body 1 is turned sideways to attach an adjuster or the like to the bottom. When the drawer is closed, the actuating plate 5 may rise and be locked by the elastic locking tool 17. In this case, it will be locked by the actuating tool 14 and all the drawers will not be able to be pulled out, and the actuating plate 5 will not be able to be pulled out. It also becomes extremely difficult to return the plate 5 to its original position.

In the present invention, as described above, the key plate 4 is arranged in front of the actuating plate 5, and engaging protrusions are provided at the front end at positions corresponding to each drawer 2 inside the main body 1 between the key plate 4 and the actuating plate 5. 8a, a rotating plate 8 having a locking piece 8b at its rear end is pivotally mounted 8', and the engaging protrusion 8a is engaged with an engaging hole 4a formed at a corresponding position on the key plate 4; Upon locking, the key plate 4 rises and the locking piece 8b of the rotating plate 8 descends, locking the stopper piece 9 correspondingly protruding from the outer surface of each drawer 2, and also locking the top surface of the operating tool 14. Since the actuating plate 5 is pushed down to the locking release position by engaging with the elastic locking member 17, when the cabinet body is laid down on its side as described above, the actuating plate 5 rises and locks with the elastic locking member 17. By locking, the actuating plate 5 can be pushed down to the original unlocked position, and by locking in advance, the locking piece 8b can prevent the actuating plate 5 from moving during transportation, etc. It has practical effects.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a perspective view of the external appearance of the cabinet.
The figure is a perspective view of the main parts inside the cabinet showing the relative positions of the members, Figure 3 is a perspective view of the key plate, Figure 4 is a perspective view showing the mounting state of the lever plate, and Figure 5 is a perspective view of the rotating plate. 6 is a perspective view of the actuating tool, and FIGS. 7 and 8 are side views of essential parts inside the cabinet showing the operating state. In the diagram, 1...cabinet body, 2...drawer,
4... Key board, 5... Operating plate, 8... Rotating plate, 9...
...Stopper piece, 10...Mounting plate, 11...Longer plate, 12...Cylinder lock, 13...Key bar, 14...
... Actuation tool, 15 ... Engagement pin, 17 ... Elastic locking device, 19 ... Locking protrusion.

Claims (1)

[Scope of utility model registration request] A key plate 4 and an actuating plate 5 are vertically installed at the front and back of the inside of the opening of a cabinet body 1 having a plurality of drawers 2, 2, . An actuating tool 14 having a downwardly descending inclined groove 14a and a locking surface 14b at the rear end of the lower part is attached, and an engaging pin 15 is provided protruding from the outer surface of the drawer 2 to the rear end of the inclined groove 14a. When one drawer 2 is pulled out, the engaging pin 15 engages with the inclined groove 14a to raise the actuating plate 5, and the engaging pin 15 of the other drawer 2 engages the corresponding actuating tool 14. In addition to being locked to the stop surface 14b to prevent it from being pulled out, the cabinet body 1 is provided with an elastic locking device 17 that holds the operating plate 5 in the raised position until the drawn drawer 2 is closed. 4 and actuating plate 5
A rotary plate 8 having an engaging protrusion 8a at the front end and a locking piece 8b at the rear end is pivotally mounted 8' at a corresponding position of each drawer 2 inside the main body 1 between the engaging protrusions. 8a
is engaged with the engagement hole 4a drilled at the corresponding position of the key board 4, and when the key board 4 is locked, the key board 4 is raised and the locking piece 8b of the rotary plate 8 is lowered, and the outer surface of each drawer 2 A locking and safety locking device for a drawer in a cabinet, which locks a stopper piece 9 protruding from the drawer and engages with the upper surface of the actuating tool 14 to push down the actuating plate 5 to the unlocking position.