JPH0649787Y2 - Double drawer prevention device for drawer in cabinet - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention is one in which two or more drawers are provided in the cabinet body so as to be movable back and forth, and when one drawer is pulled out, the other drawer is pulled out. The present invention relates to the structure of a double withdrawal prevention device that disables movement.

[Problems to be solved by conventional techniques and devices]

Conventionally, when one of the drawers installed in the main body of the cabinet is pulled out, the other drawers cannot be pulled forward, the center of gravity moves forward, and the entire cabinet is moved forward. As a prior art of a so-called double withdrawal prevention device that prevents the device from falling in the direction, for example, in Japanese Utility Model Publication No. 47-5907, the front end of the guide rail that is attached to the outer surface of the drawer side in the front-rear direction is a downward inclined surface. It is disclosed that the stopper pin on the vertical rod is pushed up when the drawer is moved forward, and the stopper pin of the vertical rod faces the engaging piece on the outer surface of the drawer side plate in the pushed-in state to prevent the drawer movement. In Japanese Laid-Open Patent Publication No. 56-6252, a rearward and downward inclined surface is provided in the front part of the lower surface of the drawer, while the front end roller of a lever lever rotatably supporting the middle part of the cabinet is rotatably connected to the lower surface of the drawer. Then, the engaging pin at the rear end of the lever is engaged with the vertical rod, and the vertical rod is raised as the drawer moves forward so that the locking piece of the drawer in the pushed state faces the rear surface of the stopper of the vertical rod. It discloses that it has been configured.

The former configuration requires a long guide rail,
In the latter configuration, since the lower surface of the drawer is inclined, there is a disadvantage that only a thing having a height lower than that of the rear part can be stored in the front part of the drawer.

SUMMARY OF THE INVENTION It is an object of the present invention to solve these problems of the prior art and provide a double-drawer prevention device having a simple structure.

[Means for Solving the Problems]

For this reason, in the present invention, in a cabinet that is provided with vertically movable multistage drawers inside the cabinet, the vertical rods are arranged on the inside surface of the cabinet so that the vertical rods are vertically movable so as to face the drawer side plates. Provided on the outer surface of each drawer side plate, a locking piece and a pressing body are provided to project, while the vertical rod is provided with abutment bodies at appropriate intervals corresponding to the drawer side plate locations of each of the stages, A support body is provided in a front opening case provided on the rear side of the vertical rod on the inside surface of the cabinet body so as to bias the support body in a forward projecting manner. An inclined guide surface is formed that contacts each contact member from below to push up the vertical rod by a predetermined dimension, and the support member is configured to retreat by the pressing member in the drawer when the vertical rod is pushed into the cabinet body. , And vertical rod Are those in which the vertical rod is provided with a stopper member so as to face the front of the engaging piece in the side plates of the drawer of the pressed state in raised position.

[Operation and effect of device]

According to this structure, when the vertical rod provided on the inner surface of the cabinet body so as to be movable up and down is in the raised position, the stoppers provided on the vertical rod at appropriate vertical intervals are provided on the drawer side plate in the pushed state. It faces the front surface of one piece and prevents the drawer from moving forward in the pushed state.

Then, on the inner side surface of the cabinet body, a support body is provided in a front opening case provided for each drawer stage so as to urge forward, and when this support projects forward, the upper surface of the front part of the support body Since the abutment body on the vertical rod is pushed up by a predetermined distance on the inclined guide surface of, the vertical rod will be in the raised position when the abutment body is pushed upward by any one pusher body, and the pushing state is as described above. It is possible to prevent the drawer from moving forward.

On the other hand, when an arbitrary drawer is pushed into the cabinet body, the pressing body provided on the drawer side plate retracts the support body, and in this state, each stopper body in the vertical rod and each stage drawer It will not interfere with the locking piece.

On the contrary, if any drawer is pulled out in the forward direction, the relationship between the pressing body and the support is released, and the vertical rod is pushed up through the pushing body and the abutment body. When one drawer is pulled out, the drawers in the other pushed-in states can no longer be pulled out, so that a so-called double drawer can be prevented, and an accident in which the cabinet body tilts forward can be prevented.

Further, according to the present invention, since the support body for pushing up the vertical rod can be mounted on the cabinet body while being housed in the front open case, the mounting work is further simplified.

In addition, since the number of parts provided on the side plate of the drawer is only two, the pressing body and the locking piece, and these parts do not need to be lengthened in the front-rear direction, the structure is simpler than the conventional device. Play.

〔Example〕

An embodiment of the present invention will now be described with reference to the drawings. In the drawings, reference numeral 1 is a cabinet body, and reference numeral 2 is a drawer arranged in the cabinet body 1 in multiple stages.
Each drawer 2 is suspended movably back and forth via a pair of left and right suspensions 3,3.

Although not shown, each of the suspensions 3 is suspended from a main body rail that is detachably attached to the reinforcing frames of the left and right side plates 4 and 4 of the cabinet body 1 and a ball of a rail portion of the main body rail, and Secured to the outer surface of the left and right side plates 2a of the drawer 2 which is provided with an intermediate rail having a rotating roller that regulates upward movement and a rotary roller that is suspended via a ball on the lower end rail portion of the intermediate rail and that regulates upward movement. It consists of a drawer rail.

The uppermost front open drawer 6 in the cabinet 1 is also suspended through the suspension 3 in the same manner as described above. And the top drawer 6
The door 5 that covers the front of the cabinet 5 is rotated in the forward direction so that the door 5 in a substantially horizontal state can be pushed to the side below the top plate of the cabinet body 1.

Reference numerals 7 and 7 denote locking pieces that project outward from the left and right side plates 2a and 2a of each drawer 2 to the left and right, and the bottom surface of each locking piece 7 is located at a higher position in the side view of the drawer. In other words, the metal plate is bent and formed so as to be provided with a so-called front downward sloping lower sloping surface 7a so as to be located at a lower position at the frontward position.

A vertical rod 8 that can move up and down along the left and right side plates 4, 4 of the cabinet body 1 is arranged along the guide frame.
It intersects with the back surface of the main body rail 3a in each of the drawers 2 at right angles.

The stopper body 10 made of synthetic resin such as polyacetal resin is
Corresponding to the drawers 2 of each stage, at a suitable height position on the upper surface side of the suspension 3 of each stage, a spindle 11 projecting from a metal support 15 screwed to one or both vertical rods 8 on both sides. Each stopper body 10 has an abutment inclined surface 12 that becomes higher toward the rear of the cabinet body 1 in a side view.

On the lower surface side of the stopper body 10, an elastic spring body 13 is integrally formed so as to extend rearward and downward from the front end portion.
A protrusion 14 integrally projects downward in the middle of the lower surface of the elastic spring body 13, and the free end side of the elastic spring body 13 is curved upward.

The elastic spring body 13 of each stopper body 10 is slidably placed on the upper surface of the locking portion 16 formed by bending on each support body 15, whereby each stopper body 10 has its rear end side dropped downward. It is possible to maintain a posture that is not present, and the protruding portion 14 of the elastic spring body 13 contacts the front surface of the locking portion 16, so that even if an external force in the forward direction acts on the rear surface of the stopper body 10, the stopper body 10 is directed upward. It is configured not to rotate.

An abutment body 17 of the vertical rod 8 is integrally provided at a lower end portion of a support body 15 which supports the stopper body 10. The lower end of the abutment body 17 is formed on a slider portion made of synthetic resin such as polyethylene in order to easily slide with respect to a mating member and reduce sliding resistance.

In addition, a case 19 having a rectangular tubular cross-section and the like having a front opening is attached to the side plate 4 of the main body 1 of the cabinet, behind the vertical rod 8, and inside the case 19, the contact members of each step are attached. A support body 18 is inserted into the case 17 so as to push the vertical rod 8 upward and to be pushed upward, and the support body 18 is biased forward by a spring 20 in the case 19.

In the first embodiment shown in FIGS. 3 to 6, each support
On the upper surface of the front part 18, an inclined guide part 18a is formed which inclines upward as it goes backward from the front end.

Reference numeral 22a is a guide groove formed on one side surface of the case 19 in the front-rear longitudinal direction, and is a regulation stopper fixed to the support body 18.
22b is inserted into the guide groove 22a so that the support 18 can be moved back and forth by a certain distance.

On the other hand, a pressing body is provided on the outer surface of the side plate 2a of the drawer 2 of each stage.
21 is provided so as to project, the rear end of the pressing body 21 is brought into contact with the inclined guide portion 18a of the support body 18, and the upward guide portion 21a having the same inclination angle as the inclination angle is provided. .

When the drawer 2 is pushed in, the pressing body 21 presses the guide portion 18a at the front end of the support body 18 of the stage backward,
The support 18 is moved backward, and in the first embodiment, when the support 18 is protruding, the support 18 is
The abutment body 17 rides on the upper surface 18b of the 18, and as the support body 18 retreats, slides down the inclined guide surface 18a and descends.
Is transferred from the support 18 to the upper surface of the pressing body 21 (see FIGS. 3 and 4). Therefore, the vertical movement dimension of the contact member 17 and thus the vertical rod 8 is (H).

Reference numeral 24 indicates an all-lock mechanism, and the all-lock mechanism
The reference numeral 24 designates a rotatable cylinder type lock 34 which is attached to the front surface of the cabinet body, and a pair of left and right operating rods which swing up and down in conjunction with an eccentric member 27 of the lock 34 when locking and unlocking with a key 33. 23, 23 and actuating rods 28, 28. A pair of left and right operating rods 23, 23 are longitudinally arranged on the lower surface of the top plate of the caninet body 1, and the operating rods 23, 23 are halfway between them. While being rotatably supported by a pin support shaft 25, one end of both operating rods 23 is rotatably connected by a pin, and a pair of upper and lower guide pieces 26 are forwardly connected from the one operating rod 23. , 26 are projected, and the eccentric member 27 at the rear of the lock 34 rotatably mounted on the front surface of the cabinet body 1 is inserted between the guide pieces 26, 26.

The other end of the pair of left and right operation rods 23, 23 is provided with a vertical operation rod 28,
28 is hung from the vertical locking hole 29, and both vertical operating rods 2
The lower end pin lever 30 of 8,8 faces the vertically long engaging groove 31 of the pair of left and right vertical rods 8,8, and when the lock 34 is locked, the upper and lower operating rods 28,28 and the pin levers 30,30 thereof are used. Both vertical rods
Lifting 8,8 by size (H), locking pieces 7 of all drawers 2,6
The stoppers 10 of the vertical rods 8 are positioned on the front surface of the lock bar so that they can be all-locked. On the other hand, when the lock 34 is unlocked, both the vertical rods 8 and 8 are lowered so that the stoppers 10 are locked by the stoppers. When the stopper 7 is moved to the lower position and the drawers 2 and 6 are pulled out forward, the stopper body 10 can freely pass back and forth above the locking piece 7.

The support shafts 36, 36 projecting from the left and right side plates 4, 4 of the cabinet body 1 rotatably support the middle portions of the engaging claws 32, respectively. The forked portions of the ends are locked to the pin levers 30, and when the upper and lower operating rods 28, 28 and their pin levers 30, 30 are raised, the front ends of the engaging claws 32 are rotated downward to rotate the door 5. It is configured to lock immovably.

With this configuration, when the drawers 2 and 6 of all stages are pushed in and the door 5 is closed, and the lock 34 is rotated in the locking direction by the key 33, the eccentric member 27 at the rear end of the lock 34 is rotated.
Pushes the lower guide piece 26 of one operating rod 23 downward, the connecting portion of both operating rods 23, 23 moves downward, and the left and right operating rods 23, 23
The other ends of 23 are raised all at once, and the door 5 is locked by the engaging claws 32 via both the vertical operating rods 28, 28 and the pin lever 30, and the vertical rods 8, 8 are raised to the respective stages. The rear surface of the stopper body 10 is located on the front surface of the locking piece 7 in each of the drawers 2 and 6 and can prevent the movement of all the drawers in the forward direction.

When the all lock mechanism 24 is unlocked, the vertical operating rod
28, 28 and the vertical rods 8, 8 are lowered, the front end of the engaging claw 32 is disengaged from the door 5 and the door 5 can be opened, while the upper surface of each stopper body 10 on the vertical rod 8 is locked by a locking piece. 7 can pass in the front-back direction (see FIG. 5).

At this time, the abutment body 17 of the vertical rod 8 in the lowered state rides on the upper surface of the pushing body 21 at the lower position in the drawers 2 and 6 in the pushed states (see FIG. 3).

After the door 5 is flipped up and rotated, it can be pushed along the lower surface of the top plate of the cabinet body 1 in a substantially horizontal state.

Then, as shown in FIG. 6, when one of the drawers 2 is pulled out, the locking piece 7 of that step passes above the stopper body 10 forward, while the pressing body 21 of the drawer 2 also moves forward. Accordingly, the support body 18 moves forward by the biasing force of the spring 19 and the vertical rod 8 is moved by the inclined guide surface 18a of the support body 18.
When the abutment body 17 is pushed upward and the pressing body 21 is completely separated from the support body 18, the abutment body 17 rides on the high-position support surface 18b, so that the vertical rod 8 is raised by the dimension (H) (fourth). See figure).

Therefore, the rear surface of the stopper body 10 is located on the front surface of the locking piece 7 on the side surface of the drawers 2 and 6 in the other stages, and further, the rear surface of the elastic spring body 13 of each stopper body 10 is projected to the lower surface of the middle portion. The protruding portion 14 that is engaged is the locking portion 16 of the vertical rod 8.
Since the stopper body 10 is abutted against the stopper body 10 to prevent the stopper body 10 from rotating upward, even if the locking piece 7 collides with the rear surface of the stopper body 10 at a position higher than the support shaft 11, the drawer moves forward in that stage. It is possible to prevent the so-called double withdrawal to prevent the cabinet body 1 from falling forward.

In the unlocked state of the all-lock mechanism 24, the vertically long engaging groove 31 of each vertical rod 8 and the pin lever 30 at the lower end of each vertical operating rod 23 at the independent vertical position of the vertical rod 8 do not interfere with each other. The uppermost door 5 can always be opened without the engaging claw 32 rotating.

Even if two or more drawers 2 are accidentally pulled out at the same time, the vertical rod 8 is in a raised state so as to prevent the double drawer, but if only one drawer 2 is pushed in from this state. The lower sloping surface 7a of the locking piece 7 of the pushing drawer 2 contacts the contacting sloping surface 12 of the raised stopper body 10, and the stopper body 10 resists the upward force of the elastic spring body 13. The locking piece 7 can pass to the rear position of the stopper body 10 while being pushed downward and rotated, and after the passage, the stopper body 10 is restored to its original posture by the elastic force of the elastic spring body 13, The locking piece 7 of is no longer able to move forward.

Since such rotation of the stopper body 10 operates independently of each other due to contact with the locking pieces 7 of each stage, even when the other drawer 2 is pushed in later, the stopper body 10 of that stage is pushed. The stopper piece 7 is brought into contact with the stopper body 10 so that only the stopper body 10 can be rotated against the elastic force of the elastic spring body 13. Instead, they can be pushed in one by one, and even in that case the double withdrawal prevention mechanism is not damaged.

Further, when the stopper body and the elastic spring body are integrally formed, if they are made of synthetic resin, the effect of further simplifying the molding is achieved.

FIG. 7 shows a second embodiment, in which a low position support for supporting the abutment body 17 at a low position when the support body 37 retreats is provided at the front part of the support body 37 for pushing up the abutment body 17 in the vertical rod 8. The surface 37a and an inclined guide surface 37b that pushes up the contact body 17 as the support body 37 protrudes forward, and a high position support surface 37c that supports the contact body 17 at a high position when the support body 37 is substantially projected. Yes,
The pressing body 38 in the drawer 2 is configured to press on the substantially vertical surface of the support body 37, and the support body 37 is inserted into the case 19 so as to be movable back and forth. Is almost the same as.

Therefore, the pressing body 38 in the drawers 2 and 6 that are pushed in,
By retracting the support body 37, the abutment body 17 and thus the vertical rod 8
Is lowered by a predetermined distance (H) (see the solid line state in FIG. 7), and the interference between the stopper body 10 and the locking piece 7 (prevention of forward movement of all drawers) is released.

On the contrary, if any drawer is pulled out and moved, the pressing body 38 in the drawer is separated from the front end of the support body 37, and the support body 37 is projected forward by the force of the spring 20 to move the support body 37 to the high-position support surface. 37
Since the abutment body 17 is placed on c, the vertical rod 8 is held at a position raised by a predetermined distance (H) (see the chain double-dashed line in Fig. 7), and the drawers 2 and 6 in the other pushed-in states are withdrawn. The movement can be stopped.

FIG. 8 and FIG. 9 show a third embodiment, in which a case 19 having an opening on the front side is arranged at a position rearward of the vertical rod 8 so that the front surface thereof is inclined upward, and is fitted into the case 19. Support 40
Is biased by a spring (not shown) to project forward obliquely, and the abutment member 17 on the vertical rod 8 is attached to the front inclined surface 40a of the support member 40.
Is a structure for supporting from below.

Then, as the drawer 2 is pushed in, the support 40 is moved to the case.
As a mechanism for pushing in the 19-direction, a mediating arm 42 that rotates back and forth around the shaft 41 on the front side of the vertical rod 8 (the front side of the cabinet body) is always brought into contact with the projection 40b at the front end of the support body 40 by a torsion spring 43 or the like. Then, as the drawer 2 is pushed in, the pressing body 44 in the drawer 2 pushes backward at an arbitrary height position on the front surface of the intermediary arm 42 to move the support 40 backward. Reference numeral 45 is a restriction stopper that restricts the front position of the intermediary arm 42.

According to this third embodiment, the support surface of the abutment body 17 by the support body 40 is always the inclined guide surface 40a, but the support body 40
Since the height position of the inclined guide surface 40a changes in accordance with the protrusion and retreat of the contact guide 17, the contact member 17 and thus the vertical rod 8 can be set up and down. The inclined guide surface 40a need not be orthogonal to the vertical movement direction of the vertical rod 8 and can be formed arbitrarily.

Further, even when the pressing body 44 moves in the front-rear horizontal direction by inserting the vertically long and vertically intervening arm 42 between the pressing body 44 and the supporting body 40, the height of the supporting body 40 is increased. The fluctuation can be surely realized.

In order to prevent twisting of the fitting / sliding surface between the case and the support in each of the above-mentioned embodiments, it is preferable that sliders made of synthetic resin be projected on both the upper and lower surfaces of the support or ball bearings or the like be inserted.

If the vertical rod of the present invention is constructed so that it can be held in the raised position by locking operation from the outside of the cabinet body, all drawers can be locked in the cabinet body in a pushed state, so-called all. It also has the effect that it can be shared with the lock mechanism.

It goes without saying that the present invention can be applied to all drawers having a front end plate and, conversely, drawers having flip-up doors.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention, FIG. 1 is a perspective view of a cabinet body, FIG. 2 is a perspective view of a main part of an all lock mechanism,
FIG. 3 is an enlarged side view of the essential parts of the first embodiment, FIG. 4 is an explanatory view of the operation when the support is in a protruding state, FIG. 5 is an explanatory view of the operation when the drawer is pushed in, and FIG. FIG. 7 is a side view of an essential part of the second embodiment, FIG. 8 is a side view of an essential part of the third embodiment, and FIG. 9 is a view taken along line IX-IX in FIG. . 1 ... Cabinette body, 2,6 ... Drawer, 3 ... Suspension, 7 ... Locking piece, 7a ... Down inclined surface, 8 ... Vertical rod, 10 ... Stopper body, 11 ... Spindle, 12 …… Abutting inclined surface, 13 …… Elastic spring body, 14 …… Projection part, 15 …… Support body,
17 …… Body, 18,37,40 …… Support, 19 …… Case, 20
...... Spring, 21,38,44 ...... Pressing body, 22b ...... Regulation stopper, 23,23 ...... Operating rod, 25 ...... Pin support shaft, 24 ...... All lock mechanism, 34 ...... Lock, 27 ...... Eccentric member, 28 ... Vertical operating rod, 32 ... Engaging claw piece, 42 ... Intermediary arm, 43 ... Torsion spring.

Claims (1)

[Scope of utility model registration request] Claims: 1. A cabinet in which a drawer having a plurality of upper and lower stages is provided in the cabinet body so as to be movable back and forth, and a vertical rod is provided on the inside surface of the cabinet so as to be vertically movable so as to face the drawer side plate of each stage. On the outer surface of each drawer side plate, a locking piece and a pressing body are provided so as to project, while the vertical rod is
Abutment bodies are provided at appropriate intervals corresponding to the drawer side plate portions of the respective stages, and the support body is urged to project forward in a forward opening case provided on the inner side surface of the cabinet body behind the vertical rod. Is provided on the upper surface of the front part of the support,
As the support protrudes forward, a slant guide surface is formed that contacts each contact member from below and pushes up the vertical rod by a predetermined dimension, and the support member is a pressing member in the drawer when pushed into the cabinet body. The cabinet is configured so as to move backward, and the vertical rod is provided with a stopper body so as to face the front surface of the locking piece on the side plate of the drawer in the pushed state at a position where the vertical rod is raised. Double drawer withdrawal prevention device in.