JPH059407Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention is a cabinet in which a drawer is provided inside the cabinet body so as to be movable back and forth, and a top plate is provided on the top surface of the cabinet body so that it can be opened and closed up and down. This invention relates to the structure of a lock device configured to prevent the drawer from moving forward when the top plate is in the open position.

[Conventional technology and problems]

A drawer is disposed within the cabinet body so as to be movable back and forth, and a top plate covering the upper surface of the cabinet body is provided on the cabinet body so as to be openable and closable via a hinge or the like. For example, it is proposed to make it easy to put items in and out of the drawer.
This has been known for a long time from Publication No. 44131 and the like.

In such a cabinet, when loading and unloading items from the upper surface of the cabinet body with the top plate wide open, if the drawer in the pushed-in position suddenly moves forward, it may interfere with the loading/unloading operation. There was a problem.

The present invention aims to solve this problem.

[Means for solving problems]

Therefore, in the present invention, in a cabinet in which a drawer disposed inside the cabinet body is provided so as to be movable back and forth, and a top plate is provided on the top surface of the cabinet body so as to be able to be opened and closed vertically, a vertically movable lever is provided on the side plate of the cabinet body. The drawer is arranged so as to be movable up and down so as to face the side surface of the drawer, and the engagement pin of the vertically movable lever is slidably installed in the longitudinal slot of the continuous lever that projects downward from the top plate, thereby opening the top plate. The vertically movable rod is configured to rise by an appropriate dimension near the end of the connecting rod when it is rotated, and the open position of the top plate is maintained between the connecting rod and the cabinet body. In addition, the vertically movable lever is provided with a stopper piece that prevents the drawer from moving forward due to its upward movement.

[Functions and effects of the invention]

In the present invention, when the top plate is opened wide relative to the upper surface of the cabinet body, the downward connecting rods attached to the top plate are also pulled up. Since the engagement pin fitted into the vertically close slot formed in this continuous rod is attached to the vertically movable rod, the vertically movable rod also rises by an appropriate amount near the end of the continuous rod's pulling up. .

Since the top plate can be held in a wide open position by the holding means between the cabinet body and the connecting rod, the operator can load and unload items without holding the top plate with his hands. Can be easily performed.

When the connecting rod and the vertically movable rod are in the raised state, the stopper piece provided on the vertically movable rod comes in front of the protrusion of the drawer and prevents the drawer from moving forward. This also has the effect that the drawer will not accidentally pop out during work and will not interfere with the work.

〔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. A lock 27 for locking, which will be described later, is provided on the front plate 2c of the uppermost drawer 2.

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, 2a of the drawer 2
It consists of a letter-shaped drawer rail 3c.

The top opening of the cabinet body 1 is covered with a top plate 5 whose rear end is connected with a hinge 6. When the top plate 5 is opened, articles are placed in the top drawer 2 pushed into the cabinet body 1. It is configured so that it can be taken in and taken out.

Symbols 7, 7 are left and right side plates 2a, 2a 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.
The metal plate is bent so as to have a downwardly inclined surface 7a which has a so-called forwardly downwardly inclined surface 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.

A lock body 10 made of synthetic resin such as polyacetal resin is placed at an appropriate height on the upper surface side of the suspension 3 of each stage corresponding to the drawer 2 of each stage.
It is rotatably mounted via a support shaft 11 protruding from a metal support 15 screwed to one or both left and right vertical rods 8, and each lock body 10
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 has a contact slope 12 that becomes higher toward the rear of the cabinet body 1. have

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 made of synthetic resin is attached to the lower end of the push-up body 21, and the slider 22 in the push-up body 21 is inserted into the notch 1 of the main body rail 3a.
The slider 22 is arranged so as to face the upper surface of the intermediate rail 3b from eight locations, and when each drawer 2 is pushed in, the slider 22 contacts the flat bottom surface 20a, and as each drawer 2 or 6 is moved forward, the intermediate rail 3b The rail 3b moves back and forth, and the slider 22 moves along the flat bottom surface 2 of the guide portion 20 of the intermediate rail 3b.
From 0a to the upper surface 19 via the rear inclined guide surface 20c
The structure is such that the vertical rod 8 is pushed up by a dimension (h1) upon contact with the vertical rod 8.

The reference numeral 25 indicates an all-lock mechanism for locking all the drawers 2 and the top plate 5, and the all-lock mechanism 25 is attached to the front sill 1a of the cabinet body.
Or the lock 27 attached to the front plate 2c of the top drawer 2
a pair of left and right operating rods 23, 23 that swing up and down in conjunction with the bar rod 28 protruding from the lock 27 when the lock is locked with a key; and a tip 2 of each operating rod 23.
3a and the locking hole 29 of the vertical rod 8, the interlocking rod 3 is disposed in the front-rear longitudinal direction along the side plate 4 of the cabinet main body, and is movable up and down about the rotation fulcrum 32.
Consists of 0.

A pair of left and right operating rods 23, 23, which are longitudinally arranged in the front stile 1a of the cabinet body 1, are each supported by a pin support shaft 24 so as to be rotatable at their midpoints. The base end of the lock 27 is rotatably connected with a pin 31, and the bar rod 2 of the lock 27 is attached to the lower surface side of the contact piece 26 protruding from the one operating rod 23.
8 is coming.

Tips 23a of the pair of left and right operating rods 23, 23
is a horizontal piece 33 of the interlocking rod 30 having an L-shaped cross section in front of the rotation fulcrum 32 to the side plate 4 of the cabinet body.
The rear end engaging portion 34 of the interlocking rod 30 is brought into contact with the upper surface.
is inserted into the vertical locking hole 29 at the upper end of the vertical rod 8,
There is a horizontal piece 3 on the rear side of the rotation fulcrum 32 of the interlocking rod 30.
3, an engaging claw body 37 that is vertically movably attached to the pin 36 of the bracket 35 protruding from the side plate 4 of the cabinet body is arranged, and the hook portion 37a of the engaging claw body 37 is attached to the top plate. 5, faces the hook-shaped lock portion 38 protruding downward from the lower surface, and is biased by a spring 39 or the like in a direction in which the engaging pawl body 37 moves away from the lock portion 38 (in the unlocking direction). Reference numeral 40 denotes a stopper for maintaining the engagement claw body 37 in the unlocking direction.

Further, the lower end surface of the engaging claw body 37 is connected to the interlocking rod 30.
When the interlocking rod 30 is rotated in the locking direction, the engaging claw body 37 is rotated against the force of the spring 39, so that the hook portion 37a of the engaging claw body 37 is in the locking position. 38 to lock the top plate 5 in the closed state.

Reference numerals 43, 43 denote continuous rods that are rotatably connected with pins 49 at their base ends on both left and right sides near the rear of the top plate 5, and the longitudinal slots 44 of each of the continuous rods 43 are connected to the inner surface of the side plate 4 of the cabinet main body. The connecting rod 43 and the engaging pin 4 fit into the engaging pin 46 of the vertically movable rod 45, which is arranged to be vertically movable, and rise when the top plate 5 is wide open.
Each stopper piece 4 is attached to the vertically movable rod 45 by raising the vertically movable rod 45 by an appropriate dimension (h2) via the vertically movable rod 6.
7 faces the front surface of a protrusion 48 protruding from the outer surface of the side plate of each drawer 2 (preferably the uppermost drawer) and prevents the drawer 2 from moving forward.

Further, reference numeral 50 indicates that when the connecting rod 43 is pulled up, the connecting rod 43 is pulled up and the top plate 5 is pulled up.
The holding means 50 shown in the embodiment shown in FIGS. 3 and 4 is a holding means 50 for holding the cabinet in a wide open state, and is mounted so as to be horizontally rotatable about a shaft 51 on the upper surface of the cabinet body 1. Plate-shaped holding piece 52
By fitting into an engagement groove 53 formed in a notch in the connecting rod 43, the downward movement of the connecting rod 43 is prevented.

With this configuration, when the drawer 2 is pushed in and the top plate 5 is opened, the connecting rod 43 attached to the top plate 5 is pulled up accordingly, and the lower end of the vertical slot 44 in the connecting rod 43 is moved up and down. Engagement pin 46 of rod 45
At a position near the pulling end corresponding to the engagement pin 4
6 to raise the vertical movement rod 45.

When the vertical movement rod 45 rises by the dimension (h2),
A stopper piece 47 provided on the vertically movable rod 45 faces the front surface of the protrusion 48 on the side surface of the drawer 2, and can prevent the drawer from moving forward.

Then, by rotating the holding piece 52 of the holding means 50 as shown by the solid line in FIG. 4 and fitting it into the engagement groove 53 of the connecting rod 43, the top plate 5 can be held in a wide open state. This makes it possible to smoothly take items in and out of the top drawer 2 from the top side of the cabinet body 1.

The rotational position of this holding piece 52 is regulated by the contact pin 5.
4.55.

Note that the holding means 50 may be configured such that a bar pin having an L-shape in plan view is inserted into the engagement hole of the connecting rod 43 instead of the holding piece 52. When the drawers 2 in the cabinet body are arranged in multiple stages,
It is also possible to have a configuration in which forward movement is prevented only for at least the topmost drawer, but it is of course possible to prevent forward movement of all drawers. Furthermore, it can also be applied when there is only one drawer in the cabinet body. In addition, the vertical movement rod 45
may be provided only on one of the left and right sides of the cabinet body.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which Fig. 1 is a perspective view of the cabinet, Fig. 2 is a sectional view of the main part taken along the - line in Fig. 1, and Fig. 3 is a side view of the main part showing the top plate in an open state. Figure 4 is a plan view of Figure 1, and Figure 5 is a plan view of Figure 1.
1, FIG. 6 is a perspective view of a main part of the all-lock mechanism, FIG. 7 is an explanatory view of the operation of the all-lock mechanism, and FIG. 8 is a cross-sectional view taken from FIG. 7. 1... Cabinet body, 3... Suspension, 2... Drawer, 2c... Front plate, 5... Top plate, 6
... Hinge, 7 ... Stopper body, 8 ... Vertical rod, 10
... Lock body, 11 ... Support shaft, 12 ... Contact slope, 13 ... Elastic spring body, 21 ... Push-up body, 2
3, 23... Operating rod, 24... Pin support shaft, 25...
...all lock mechanism, 27...lock, 28...barrel, 29...engaging hole, 30...interlocking rod, 31...
Pin, 32...Rotation fulcrum, 33...Horizontal piece, 34
... Rear end engaging portion, 35 ... Bracket, 36 ...
Pin, 37... Engaging claw body, 38... Lock portion, 3
9...Spring, 40...Stopper, 43...Running lever,
44... Vertical slot, 45... Vertical moving rod, 46...
Engagement pin, 47...stopper piece, 48...protrusion,
50... Holding means, 52... Holding piece, 53... Engagement groove.

Claims (1)

[Scope of utility model registration request] In a cabinet in which a drawer disposed inside the cabinet body is movable back and forth, and a top plate is provided on the top surface of the cabinet body so as to be openable and closed up and down, a vertically movable lever is provided on the side plate of the cabinet body, facing the side surface of the drawer. The engaging pin of the vertically movable rod is slidably installed in the longitudinal slot of the connecting rod that protrudes downward from the top plate, and the connecting rod is arranged so that it can move up and down as the top plate opens and rotates. The vertically movable rod is configured to be raised by an appropriate amount near the end when the rod is pulled up, and there is a space between the connecting rod and the cabinet body.
A locking device for a drawer in a cabinet, characterized in that a holding means is provided for holding the top plate in an open position, and a stopper piece is provided on the vertically moving lever to prevent the drawer from moving forward due to its upward movement.