JPS5836757Y2 - Multi-drawer cabinet - Google Patents

Description

[Detailed description of the invention] The present invention relates to the structure of a multi-stage drawer type cabinet, and more specifically, on the inner surface of the main body side plate of the multi-stage drawer type cabinet, at least one vertically movable rod is installed to allow the drawer to be pulled out by operation from outside the cabinet. It is configured to move up and down approximately perpendicular to the direction of movement, and a latch receptacle is provided protruding from the outer surface of each 0 side plate, while the inner surface of the side plate of the cabinet body rotates in conjunction with the vertical movement of the vertical movement rod. The object of the present invention is to enable all the drawers to be locked at once with a simple structure by pivotally attaching the lock latches to the respective latch holders of each of the drawers so that they can be freely engaged and detached from each other. By rotatably pivoting a bypass lever near the latch receiver of the drawer and inserting it between the latch receiver and the lock latch, the lock latch of the drawer at any stage can be secured. This is selectively disabled so that even in the locked state, any drawer can be freely taken in and out regardless of whether other drawers are locked.

Next, the present invention will be explained based on an embodiment drawing in which the present invention is applied to a three-drawer type fireproof filing cabinet. 1 is the cabinet body, and its top plate 2, back plate 3, base plate, and left and right side plates 4, 4' are all fireproof. It is a thick wall filled with concrete material, etc.

A, B, and C are upper, middle, and lower drawers that can be freely pulled out to the front side of the cabinet body 1, and rails 6 are horizontally provided on the outer surfaces of the left and right side plates 12 and 12' of each drawer. .6' is supported by suspensions 7 and 7' on rails 8 and 8' extending along the inner surfaces of the left and right side plates 4 and 4' of the cabinet body so as to be freely drawn out.

The front part 9 of each drawer A, B, and C is formed of a thick wall filled with a fireproof material such as concrete, similar to the cabinet body 1, and a stepped part of the smoke return is formed between it and the front of the cabinet body. has been done.

A spring 10' is installed at the upper right end position of the front part 9 of the upper drawer A.
An oval push lock 10, which becomes locked when pushed in against the pressure, is provided so as to penetrate through a rear end protruding abutment portion 11 so as to protrude from the back surface of the front face portion 9 of the drawer A.

On the outer surface of the left and right side plates 12.12' of each drawer A, B, and C,
Vertical stoppers 13°13 at the same height position.
' is provided protrudingly, and a latch holder 14 that is U-shaped in plan view is provided near the back of the latch holder 14.
．． 14', each latch receiver 14.14'
Bypass levers 17, 1 are formed such that the front end protrusion 15 is high and the rear end protrusion 16 is low, and between them, the bypass levers 17, 1 selectively abut on the upper surfaces of the both end protrusions 15 or 16.
7' is pivotably mounted.

Also, the stopper 1 on the outer surface of the left side plate 12 of each drawer
3, a guide piece 18 having a front and rear inclined portion, such as an angular shape when viewed from the side, is protrudingly provided.

Reference numeral 19.19' denotes a pair of left and right horizontal rods that are mounted on the upper part of the inner surface of the left and right side plates 4, 4' of the cabinet body so as to be movable in the horizontal front and back direction, and the front end of the right side water rod 19' is connected to the front surface of the upper drawer A. The intermediate part of the interlocking rod 20 is horizontally rotated by a vertical pin 20' which is always in contact with the rear end abutment part 11 of the press lock 10 attached to the top plate 2 of the cabinet body. The left and right ends of the interlocking rod 20 are fitted into the rear ends of both the horizontal rods 19 and 19', and the front end of the right horizontal rod 19' is pushed into the contact portion 11 of the push lock 10. When the horizontal rod 19' moves backward, the interlocking rod 20 horizontally rotates, and the left horizontal rod 19 moves forward.
' are configured to move in substantially horizontal directions in opposite directions.

21.21' controls the movement of each horizontal rod via symmetrical bell crank levers 22.22' connected to the horizontal rods 19.19' on the inner surfaces of the left and right side plates 4, 4' of the cabinet body. A pair of left and right vertically movable levers are suspended so as to move up and down in the same direction according to the load.
．． 21', when the stopper 13 is moved upward by a certain distance H1, a pin 2 is placed at the same height as the lower end of stopper 13.
3.23, 23.23', 23', and 23' are provided to protrude in a direction opposite to the protruding direction of each stopper 13.13'.

In addition, lock latches 24.24' are attached to the inner surfaces of the left and right side panels 4, 4' of the cabinet behind the left and right vertically movable rods 21, 21' for each drawer height, and are rotatably pivoted back and forth on pivot shafts 25, 25'. When supporting, the front and rear straight portions 26.26' are at the top of each latch 24.24' and the rear ends of the straight portions! The lock part 27, 27' of the mold is integrally formed, and the center of gravity is unevenly distributed in the direction of the lock part, or the lock part 27, 27' is urged to rotate downward by a torsion spring or the like. , when the pair of left and right vertically movable rods 21.21' are in the lower position (the pin 23 of the vertically movable rod 21 is lowered by a distance Hl from the lower end of the stopper 13), each of the pins 23.2
3' comes into contact with the upper surface of each lock latch 24, 24' to bring the front and rear straight portions 26.26' of each latch 24, 24' into a horizontal state, and the planar U-shaped latch receiver 14.14' of each drawer The lower part of the straight part 26.26' of the lock latch 24.24' can be passed back and forth, and each pin 23.23' and the latch 2
4.24' or each pin 23.
23' is moved upward, the lock latch 24,
The lock portion 27.27' of the latch receiver 14.24' is configured to pivot rearward and downward and fall into engagement with the upper surface of the front end protrusion 15 of the latch receiver 14.14'.

A trochanter 28 is fixed to the left vertical movement rod 21, which rolls along the inclined upper surface of the inclined guide piece 18 attached to it when each drawer is moved back and forth. The pair of left and right vertically movable rods 21 and 21' move up and down by a height corresponding to the vertical and downward difference H2 of the inclined guide piece 18.

On the other hand, the amount of upward movement of the rain vertical movement rod 21, 21' that rises in response to the pushing movement of the press lock 10 is a distance H3, and in this embodiment, the vertical movement of the inclined guide piece 18 is determined based on the dimension of H3. Set the head H2 to be large.

Furthermore, a claw lever 3 having a claw portion 29 at the lower end is located on the inner surface of the left side panel 4 of the cabinet on the back side of the vertically movable rod 21.
0 is pivoted to the respective latches 24 and coaxial 25 at the upper, middle, and lower positions, and each claw lever 30 is always attached with a spring 31 toward the rear end of each guide piece 18 in each of the soil loading, middle, and lower stages of extraction. When the rear end of the guide piece 18 crosses the left vertically movable rod 21 by pulling out the drawer at an arbitrary stage, the claw portion 2 of the pawl lever engages with the locking portion 32 provided on the vertically movable rod 21.
9 engages to prevent the vertically movable rod 21 from falling.

With the above configuration, first, the function of preventing double drawing of the drawer in the open state in which the push lock 10 attached to the front surface of the upper drawer is not locked is utilized.

Upper, middle, and lower drawers A, B, and C are cabinet body 1
When the push-lock 10 is unlocked (with the push-lock 10 protruding from the front surface), the pair of left and right vertically movable levers 21 and 21' are located on the left side as shown in FIG. 6a. Each trochanter 28 attached to the vertical movement rod 21 is in the lowered position so as to contact the upper surface of the lowermost front part of the inclined guide piece 18 provided on the outer surface of the left side plate 12 of each drawer, and in this state, the third As shown in the figure, the pull 33 in the middle drawer B
When you put your hand on the drawer B and pull it forward as shown at the top of Figures 6a, 6b, and 6C, the left side plate 1 of the drawer B
The trochanter 28 moves upward along the upper surface of the guide piece 18 in accordance with the forward movement of the inclined guide piece 18 protruding from the outer surface of the trochanter 28 .

Therefore, each pin 23, 23.
also rises by the head H2 of the guide piece 18.

At this time, the stopper 13 in the middle drawer B has already passed above the corresponding middle position pin 23, but the other upper and lower drawers A and C remain housed in the cabinet body 1. Therefore, the corresponding pin 23.23' is located on the front side of the stopper 13.13' attached to each of these drawer left side plates 12.12 (Fig. 6a, Fig. 6b, Fig. 6b). In Figure 6C, the positional relationship in lower drawer C is shown at the bottom).

As a result, when drawing out the upper drawer A and the lower drawer C, the pins 23.23 at their respective height positions come into contact with the front surfaces of the stoppers 13.13 in each stage, thereby preventing the drawer from moving. Yes, at that time, the pawl lever 30 corresponding to the middle drawer B position is moved to the sixth position by the force of the spring 31.
As shown in FIG. Even in the state where the vertically movable lever 21 is lost, it is possible to prevent the vertically movable rod 21 from falling and maintain that state, thereby preventing the drawer from being pulled out twice thereafter.

This operation also works when you pull out the drawers in other tiers, so that the other tiers will no longer be able to be pulled out.
This prevents the cabinet from falling due to its center of gravity moving forward.

It goes without saying that this configuration can be provided on both the left and right sides of the drawer.

Conversely, if you push in drawer B that has already been pulled out, this drawer B
The rear end of the guide piece 18 attached to the lever pushes the pawl lever 30 backward, and the engagement with the locking part 32 on the vertically moving rod 21 is released, and the trochanter 28 descends along the upper surface of the guide piece 18 and moves up and down. As the movable rod 21 descends, each pin 23.23.23 returns to its original position below the lower end of the stopper 13.13.13.

Next, the locking mechanism of each drawer A, B, and C when the upper drawer A is locked by the push lock 10 attached to the upper drawer A will be explained.

First, when all drawers A, B, and C are stored in the cabinet body 1, push in the lock 10 of the upper drawer A, and the horizontal rod 19' on the inner surface of the right side panel 4' of the cabinet body 1 is pushed backwards. The left side plate 4 is connected via the interlocking rod 20 at the rear end.
The horizontal rod 19 attached to the left and right horizontal rods 19, 19' and bell crank levers 22, 22' move the horizontal rods 19, 19', and bell crank levers 22, 22' to move the left and right vertically movable rods 21°21' as shown in FIGS. 4 and 5. As shown by the solid line, H3 increases together.

From this, each pin 23 at the upper, middle, and lower position of each vertically movable rod 21.21' moves upward, and each lock latch 24.24' in contact with each pin 23 rotates backward. The front end protrusion 15.15 of each planar U-shaped latch holder 14.14' attached to the outer surface of the left and right side plates 12.12 of drawers A, B, and C in each stage.
'1-shaped lock part 27 of each latch 24 and 24' on the top surface
．． 27' is engaged, making it impossible for the drawers in each stage to be pulled forward, meaning that they are locked.

Conversely, by inserting the key into the push-lock 10 and releasing the lock, the push-lock 10 is projected forward by the force of the spring 10'.The pair of left and right vertically movable rods 2 are operated in the opposite manner to the above.
1.21' are both lowered and each pin 23.23'
abuts against the upper surface of each lock latch 24, 24', and places it in a horizontal position to release the lock and enable forward movement of each drawer.

When this locking mechanism is in operation, the trochanters 28 and 28' attached to the left and right pair of vertically movable rods 21.21' rise above the guide piece 18.18' by an amount H3, as shown in FIG. The upper end of the guide piece 18.18' is H4 from this point.
If the structure is configured so that the lock latch 24 and the latch receiver 14 of a drawer are disengaged and the drawer is pulled forward, the lock latch 24 will be positioned upwardly. Then, the guide piece 18.18' in the drawer raises the trochanters 28, 28' by H4, and the vertical movement rod 21.21' is also pushed up by the same amount, causing the stopper 13.13' in the other drawer to move up and down. Rod pin 23.2
3' abuts against each other and makes it impossible to draw out the drawer, so it can function as a double drawer prevention function.

Further, although this locking mechanism may be provided only on one side, in a wide drawer type cabinet, by providing it on both the left and right sides, safety against theft is improved.

Furthermore, when the drawer is in the locked state with the press lock 10, if you want to be able to selectively pull out only one or more drawers, first, before locking with the press lock 10, first select the drawer that you want to be able to draw out freely. one or more stages of drawers are pulled forward one by one, and each bypass lever 17 is attached to the outer surface of the left and right side panels 12 and 12' of the drawer.
17' so that the tips thereof are placed on the upper ends of the front end protrusions 15 and 15' of each of the latch receivers 14 and 14', and then all the drawers are partially stored in the cabinet body 1, When the push-lock 10 is pushed in and locked in this state, the horizontal and vertical movement levers 21 and 21' rise, similar to the locking mechanism described above, and the bypass levers 17 and 17' are moved to the stage that is not rotated forward, for example, the 11th Middle drawer B as shown in the diagram
In the upper drawer A, the lock latch 24.24' and the front end protrusion 15.15' of the latch receiver 14.14' engage to become locked, while in the upper drawer A, each bypass lever 17, 17' is connected to each latch receiver 14. .14' is inserted between the lock latch 24 and the lock latch 24', the lower surface of the straight part 26 of the lock latch contacts the upper surface of the bypass lever 17, and the bypass lever 17 moves in response to the back and forth movement of the drawer A. Since the lock latch 24.24' can move along the lower surface of the lock latch and cannot engage with the front end protrusion 15.15' of the latch receiver 14.14', only the drawer in that stage can be freely pulled out.

In this way, if you want to lock a given drawer after putting it in or taking it out while the other drawers are locked, return the bypass levers 17, 17' of the drawer to their original positions and push the drawer into the lock position. The latches 24, 24' engage the projections 15, 15' of the latches and are automatically locked.

According to the present invention, all the drawers can be locked by operating the lock from outside the cabinet, and the bypass lever can be rotated to the latch receiver of the desired drawer in advance to disable engagement with the lock latch. For example, even if the key holder of the cabinet is not working during overtime work, only the drawer in question can be pulled out, while the other drawers are locked and their contents cannot be taken out. The drawer can be separated into a drawer containing only important documents and a drawer containing other documents, which has the effect of preventing document theft and simplifying office document management.

Moreover, since the bypass lever can be operated at once by simply turning the bypass lever, the operation is extremely simple and the manufacturing cost is low.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; Fig. 1 is a front view of a multi-stage cabinet, Fig. 2 is a partially cutaway plan view thereof, Fig. 3 is a partially sectional right side view, and Fig. 4 is a right side view of the inside of the cabinet body. A side view of the main part, Figure 5 is a side view of the main part on the left inside the cabinet body,
Figures 6a, 6b, and 6c are explanatory diagrams of the effect of preventing double drawers due to the back and forth movement of the drawer, respectively, and Figure 7 is the illustration of
Figure 8 is a left side view of the drawer,
Figure 9 is a partial cross-sectional view taken along the line ■- in Figure 8, Figure 10 is a side view of the main part of the engaging part, Figures 11, 12, and 13 are all when the bypass lever is used. FIG. 1... Cabinet body, A, B, C...
...Drawer, 12゜12'...Drawer side plate, 4,4
'...Cabinet side plate, 21°21'...
... Vertical movement rod, 18 ... Guide piece, 13.1
3'... Stopper, 23, 23'...
・Pin, 28... Trochanter, 30... Claw lever, 29... Claw part, 32... Locking part, 31...・Spring, 10...Lock, 19.
19'...Horizontal rod, 20...Interlocking rod,
14゜14'... Latch receiver, 15.15'...
...Front end protrusion, 17°17'...Bypass lever, 24.24'...Lock latch, 27
, 27'...Lock part.

Claims (1)

[Scope of utility model registration request] In a cabinet that has multiple drawers that are movable back and forth relative to the cabinet main body, the inner surface of the side plate of the cabinet main body has at least one vertical drawer that moves up and down approximately perpendicularly to the back and forth movement of each drawer when operated from outside the cabinet. A movable rod is suspended, a latch receiver is provided on the outer surface of the side plate of each drawer, and a lock latch that rotates in conjunction with the vertical movement of the vertical movable rod is provided on the inner surface of the side panel of the cabinet body. A multi-stage drawer type, in which a bypass lever is rotatably connected to each of the latch receivers of each drawer and is inserted between the latch receiver and each of the lock latches. cabinet.