JPH0453426Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] The present invention is a cabinet in which two or more drawers are provided in the cabinet body, each of which is movable back and forth.
A flip-up door is installed in front of the topmost drawer, and there is an all-lock mechanism that locks these doors and all drawers in a closed state, and a second mechanism that prevents the other drawers from moving when one drawer is pulled out. This invention relates to the structure of a lock device configured to be able to serve as a mechanism for preventing heavy withdrawal.

[Conventional technology and problems]

Traditionally, drawers installed in multiple stages in a cabinet main body have been either a drawer with a mirror plate fixed to the front end of all the stages, or a drawer that opens at the front and has a flip-up door covering the front side. It was completely unified.

In the drawer with a mirror plate, there is a so-called all-lock mechanism in which all the drawers are pushed in, and a so-called double lock mechanism in which when one of the drawers in the pushed-in state is pulled out, it is impossible to pull out the drawers in other stages. Various locking devices have been devised that also serve as a mechanism for preventing withdrawal.

However, if only the door in front of the top drawer is constructed as a flip-up type, in order to achieve the above-mentioned all lock, it is necessary to separately provide a mechanism to prevent the flip-up type door from opening. There were problems in that the structure of the mechanism became complicated and the number of required parts increased.

The present invention aims to solve this conventional problem.

[Means for solving problems]

Therefore, in the present invention, in a cabinet in which an uppermost drawer and a lower drawer with an end plate are provided in the cabinet body so as to be movable back and forth, a vertical rod is attached to the side of the cabinet body to connect the uppermost drawer and the drawer with a mirror plate. It is arranged so as to be able to move vertically so as to face each side of the drawers in the lower tiers, and by raising the vertical rod by an appropriate amount when at least one of the drawers is pulled out, it is possible to prevent the drawers in each of the tiers from moving forward. A flip-up door that covers the front surface of the top drawer is attached to the cabinet body, and an engagement claw that can be engaged with the flip-up door is moved up and down on the side of the cabinet body. The lower surface of the top plate inside the cabinet body rotatably supports the middle part of the operating rod that moves up and down when the lock is locked.
A vertical operating lever that faces the side surface of the uppermost drawer and engages with the other end of the operating lever is arranged on the side plate of the cabinet main body so as to be movable up and down, and each of the vertical operating levers has a vertical operating lever that engages with the other end of the operating lever. A pin lever that supports the rear end of the mating claw body so as to be movable up and down is protruded sideways, and the vertical rod can be pulled up by the vertical lever when the lock is locked via the pin lever, and the vertical rod can be moved up and down independently. They are connected to make it possible.

[Functions and effects of the invention]

In this invention, the vertical rod on the side surface of the cabinet body that can move up and down is raised via a pin lever attached to the vertical operating rod that moves upward when the lock is locked, and in the raised position, all the steps are moved in front of the drawer. It can be locked so that it cannot be moved, and the pin lever attached to the vertical operating rod located in the cabinet body at a position corresponding to the side surface of the uppermost drawer supports the rear end of the engaging claw, so that the vertical operating is possible. As the lever rises, the engaging pawl can prevent the flip-up door of the uppermost drawer from opening, making it possible to achieve a so-called all-lock.

and a state in which the all locks are released,
That is, when the vertical operating rod is in the lowered position, the front end of the engaging pawl body is rotated upward by the pin lever to release the engagement with the flip-up door, so that the door can be opened, while the vertical rod is Since the drawers can be raised and lowered independently, the movement of one drawer to pull out the drawers makes it impossible for the other drawers to move forward, thereby preventing so-called double drawers.

In this way, although the uppermost drawer and the lower drawers are a combination of different types of drawers, the vertical operating rod and its horizontally protruding pin lever are connected to the engaging pawl body and the vertical rod as common members. As a result, the above-mentioned all-lock and double-drawer prevention functions can be achieved, respectively.
This has the advantage that the installation work is extremely simple, the number of parts to be installed is extremely small, and the structure is simple.

〔Example〕

Next, an embodiment of the present invention will be described according to the drawings. In the drawings, reference numeral 1 is a cabinet body;
Reference numeral 2 indicates a drawer disposed in multiple stages within the cabinet body 1, and each drawer 2 is suspended through a pair of left and right suspensions 3, 3 so as to be movable back and forth.

Each of the suspensions 3 includes a main body rail 3a having a horizontally U-shaped cross section, which is detachably attached to the reinforcing frames of the left and right side plates 4, 4 of the cabinet main body 1;
an intermediate rail 3b fitted into the main body rail 3a via rotating rollers (not shown) so as to be movable back and forth;
Cross section L protruding from the left and right side plates 2a and 2b of the drawer 2
It consists of a letter-shaped drawer rail 3c.

It should be noted that the uppermost drawer 6 in the cabinet body 1, which is open at the front, is also suspended via the suspension 3 so as to be movable back and forth. The door 5 covering the front of the drawer 6 is pivoted forward and upward, so that the substantially horizontal door 5 can be pushed into the lower surface of the top plate of the cabinet body 1.

Symbols 7 and 7 are left and right side plates 2a and 2b of each drawer 2.
A stopper body protrudes outward from the rear of the drawer on both the left and right sides, and the lower surface of each stopper body 7 is at a high position when viewed from the side at a rearward position of the drawer.
A metal plate is bent so as to have a lower inclined surface 7a having a so-called forward downward slope so as to be at a lower position in the forward position.

left and right side plates 4 of the cabinet main body;
A vertical rod 8 that can move up and down along the drawer 2 of each stage is disposed along a guide frame 9 having a U-shaped cross section.
It intersects the back surface of the main body rail 3a in a right angle direction.

Lock body 1 made of synthetic resin such as polyacetal resin
0 is a metal support 15 that is fixed with screws 16 to vertical rods 8 on one side or on both the left and right sides at an appropriate height position on the upper surface side of the suspension 3 of each stage corresponding to the drawer 2 of each stage. It is rotatably attached via a protruding support shaft 11, and each lock body 1
0 has a hole in its front end that can be rotatably inserted into the support shaft 11 when viewed from the side, and the upper surface of the lock body 10 is provided with an abutting inclined surface 12 that becomes higher toward the rear of the cabinet body 1. has.

An elastic spring body 13 is integrally formed on the lower surface side of the lock body 10 and extends rearward and downward from the front end, and a protrusion 14 is integrally formed downward in the middle part of the lower surface of the elastic spring body 13. The free end side of the elastic spring body 13 is curved upward.

The elastic spring body 13 of each of the lock bodies 10 is slidably placed on the upper surface of a locking part 17 formed in a bent manner on each of the supports 15, so that the rear end side of each lock body 10 falls downward. In addition, the protruding portion 14 of the elastic spring body 13 contacts the front surface of the locking portion 17, and even if a forward external force is applied to the rear surface of the lock body 10, the lock body 10 will not move upward. It is configured so that it does not rotate.

An intermediate rail 3 is provided at the middle part of the upper surface of the main body rail 3a in the front and rear direction of the suspension 3 at each stage.
The upper surface of the intermediate rail 3b has a notch 18 that is opened, while the upper surface 19 of the intermediate rail 3b has a flat bottom surface 20a that is depressed by an appropriate depth dimension (h1) and a front and rear groove that communicates with the upper surface 19. A guide portion 20 is provided which includes inclined guide surfaces 20b and 20c.

A push-up body 21 of the vertical rod 8 is integrally provided at the lower end of the support body 15 that supports the lock body 10. A slider 22 is attached to the lower end of the push-up body 21, and the slider 22 in the push-up body 21 is arranged so as to face the upper surface of the intermediate rail 3b from 18 notches of the main body rail 3a, and When the drawer 2 is pushed in, the slider 22 comes into contact with the flat bottom surface 20a, and as each drawer 2 or 6 moves forward, the intermediate rail 3b moves back and forth, and the slider 22 touches the intermediate rail 3b.
The vertical rod 8 is pushed up by a dimension (h1) by contacting the upper surface 19 from the flat bottom surface 20a of the guide portion 20 via the rear inclined guide surface 20c.

Each of the sliders 22 is made of synthetic resin such as polyethylene in order to reduce sliding resistance when coming into contact with the upper surface 19 and guide portion 20 of the intermediate rail 3b.

Reference numeral 25 indicates an all-lock mechanism, and the all-lock mechanism 25 includes a rotatable cylinder-shaped lock 34 attached to the front surface of the cabinet body, and a key 3.
It consists of a pair of left and right operation rods 23, 23 that swing up and down in conjunction with the eccentric member 27 of the lock 34 when locking and unlocking by 3, and a pair of left and right operation rods 28, 28. 23 are disposed longitudinally on the left and right sides on the lower surface of the top plate of the cabinet body 1, and both operating rods 23, 23 are supported by pin support shafts 24 so as to be rotatable at their midpoints. 2
3 are rotatably connected with a pin 35, and a pair of upper and lower guide pieces 26, 26 are provided protruding forward from the one operating rod 23, and both guide pieces 26, 26
In between, the eccentric member 27 at the rear of the lock 34 rotatably mounted on the front surface of the cabinet body 1 is inserted.

The other ends of the pair of left and right operating rods 23, 23 have vertical operating rods 28, 28 suspended through their longitudinal locking holes 29, and a pin lever 30 at the lower end of both vertical operating rods 28, 28 is connected to the pair of left and right operating rods 28, 28. When the lock 34 is locked,
Both vertical operating rods 28, 28 and its pin lever 3
Both vertical rods 8, 8 are lifted up by a dimension (h1) via 0, 30, and the locking body 10 of each vertical rod 8 is positioned in front of the stopper body 7 of all draws 2, 6, so that all can be locked. On the other hand, lock 34
When unlocking, the slider 22 at the lower end of the push-up body 21 in both vertical bars 8, 8 is lowered until it comes into contact with the flat bottom surface 20a of the guide portion 20 of each intermediate rail 3b.

The support shafts 36, 36 protruding from the left and right side plates 4, 4 of the cabinet main body 1 rotatably support the middle portions of the engaging claw bodies 32, and the two prongs at the rear end of each engaging claw body 32 are rotatably supported. is locked to each of the pin levers 30, and when both the vertical operating rods 28, 28 and their pin levers 30, 30 are raised, the front end of each engaging pawl body 32 is rotated downward, so that the door 5 cannot be rotated. It is configured to lock.

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 with the key 33, the eccentric member 27 at the rear end of the lock 34 is moved to one side. operating lever 2
3, the lower guide piece 26 of 3 is pushed downward, and the connecting portion of both operating rods 23, 23 moves downward as shown by the two-dot chain line in FIG. , both the upper and lower operating rods 28,2
8 and the pin lever 30, the door 5 is locked by the engaging claw body 32, and when the vertical bars 8, 8 rise, the rear surface of the lock body 10 of each stage locks the door 5,
The stopper body 7 is located in front of the stopper body 7 at 6, and can prevent all the drawers from moving forward.

Then, when the all lock mechanism 25 is unlocked,
As shown by the solid lines in FIGS. 3 and 7, the vertical operating rods 28, 28 and the vertical rods 8, 8 descend, and the front end of the engaging pawl 32 comes off the door 5, allowing the door 5 to open. On the other hand, each slider 22 in the vertical rod 8 comes into contact with a flat bottom surface 20a of the intermediate rail 3b of each stage, so that the stopper body 7 can pass over the upper surface of the lock body 10 in the front-rear direction.

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

As shown in FIG. 8, when any one of the drawers 2 is pulled out, the stopper body 7 of that step is moved to the lock body 10.
While passing forward on the upper surface, the intermediate rail 3b moves forward, and as the slider 22 at the relevant stage rises from the flat bottom surface 20a of the intermediate rail 3b to the upper surface 19, the vertical rod 8 is dimensioned via the push-up body 21. Increase by (h1).

Therefore, the rear surface of each lock body 10 is located on the front surface of the stopper body 7 on the side surface of the drawer 2 in the other stage, and moreover, the rear surface of each lock body 10 protrudes from the lower surface of the elastic spring body 13 of each lock body 10. Since the protrusion 14 comes into contact with the locking part 17 on the support body 15 and makes it impossible for the lock body 10 to rotate upward, even if the stopper body 7 is at a position higher than the support shaft 11 and is attached to the rear surface of the lock body 10. Even if there is a collision, the forward movement of the drawer at that stage can be prevented, so-called double drawers can be prevented, and the cabinet main body 1 can be prevented from falling forward.

When the all-lock mechanism 25 is in the unlocked state, the longitudinal engagement grooves 31 of each vertical rod 8 in the individual up/down positions of the vertical rods 8 and the pin levers 30 at the lower ends of the vertical operating rods 23 do not interfere with each other.
There is no rotation of the engaging claw body 32, and the top door 5 can be opened at all times.

Note that even if two or more drawers 2 are pulled out at the same time by mistake, the vertical rod 8 will be in a raised state to prevent double drawers, but if only one drawer 2 is pushed in from this state, , the downwardly inclined surface 7a of the stopper body 7 in the pushing drawer 2 comes into contact with the abutting inclined surface 12 of the raised lock body 10, and the lock body 10 is pushed back against the upward force of the elastic spring body 13. The stopper body 7 locks the lock body 10 while pressing down and rotating downward (see the dashed line in FIG. 5).
After passing, the lock body 10 is restored to its original position by the elastic force of the elastic spring body 13, and the stopper body 7 at that stage can no longer move forward.

Since the rotation of the lock body 10 is independent of each other by contact with the stopper body 7 of each stage, when another drawer 2 is pushed in later, the stopper body 7 is brought into contact with the lock body 10 of that stage, and the lock body 10 is rotated.
The chisel can be rotated against the elastic force of the elastic spring body 13, and a plurality of drawers 2 that have been mistakenly pulled out can be pushed back one by one, not simultaneously, and even in that case, the double-drawing prevention mechanism is not damaged.

Note that the guide surface for pushing up the vertical rod 8 according to the forward movement of the drawer 2 may be not only the upper surface of the intermediate rail 3b but also other members protruding from the left and right side plates of the drawer 2.

Further, when the lock body and the elastic spring body are integrally formed, if they are made of synthetic resin, the molding becomes simpler.

In addition, if the sloped surface on the drawer side that the slider of the vertical rod push-up body comes into contact with is the upper surface of the drawer rail for moving the drawers of each stage back and forth, no separate parts are required, and the parts can be omitted and the installation work can be simplified. It is even more effective to omit the .

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a perspective view of the main body of the cabinet, FIG. 2 is a perspective view of the main part, and FIG.
The figure is a sectional view of the main part of FIG. 1, FIG. 4 is a sectional view of FIG. −
A line sectional view, FIG. 7 is a sectional view in a state where it can be pulled out,
Figure 8 is an explanatory diagram of the action of the double drawer prevention state, Figure 9
The figure is a plan view of the main part of the all-lock mechanism, and FIG. 10 is an explanatory view of the operation seen from the - line in FIG. 9. 2... Drawer, 1... Cabinet body, 3...
Suspension, 3a...Body rail, 3b...
Intermediate rail, 3c... Drawer rail, 7... Stopper body, 7a... Lower inclined surface, 8... Vertical rod, 9... Guide frame, 10... Lock body, 11... Support shaft, 12
...Abutting inclined surface, 13...Elastic spring body, 14...
Projection, 15...Support, 16...Screw, 17...
...Locking part, 18...Notch part, 19...Top surface, 2
0...Guide part, 20a...Flat bottom part, 20c...
... Rear inclined guide surface, 21 ... Push-up body, 22 ... Slider, 23, 23 ... Operation lever, 24 ... Pin support shaft, 25 ... All lock mechanism, 34 ... Lock,
27... Eccentric member, 28... Vertical operating rod, 32...
...Engaging claw piece.

Claims (1)

[Scope of utility model registration request] In a cabinet in which a topmost drawer and a lower drawer with a mirror plate are provided in the cabinet body so as to be movable back and forth, vertical rods are installed on the side of the cabinet body to connect each of the topmost drawer and lower drawers. It is arranged so as to be able to move up and down so as to face the side surface, and is constructed so that forward movement of the drawers of each stage can be prevented by raising the vertical rod by an appropriate dimension when at least one drawer is pulled out, and A flip-up door that covers the front surface of the upper drawer is attached to the cabinet body, and an engagement claw that can be engaged with the flip-up door is provided on the side surface of the cabinet body so as to be movable up and down. The lower surface of the top plate inside the cabinet rotatably supports the middle part of the operating lever that moves up and down when the lock is locked, and the operating lever is mounted on the side plate of the cabinet body, facing the side of the uppermost drawer. A vertical operating rod that engages with the other end is arranged to be vertically movable, and a pin lever that supports the rear end of the engagement claw body so as to be vertically movable is protruded sideways from each of the vertical operating rods, and A locking device for a cabinet, characterized in that the vertical rod is connected via a pin lever so that when the lock is locked, the vertical rod can be pulled up by a vertical operating rod, and the vertical rod can be moved up and down independently.