JP2960337B2 - Desk side chest - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a desk side chest in which an upper plate is supported by a parallel link mechanism so as to be able to move up and down.

[0002]

2. Description of the Related Art A side chest for a desk is normally stored in a space below a tabletop. When working at a desk, the side chest can be taken out of the space below the tabletop and used as a work surface together with the tabletop. it can.

Since the height of such side chest is naturally lower than the desk top, a large step is generated between the top of the desk top and the top of the side chest, and good workability is obtained. There may not be.

In recent years, side chests have been developed in which an upper plate is provided on the upper surface of the side chest main body so as to be able to move up and down. The side chest is always lowered and stored in the space below the tabletop while the desk is being lowered, and at the time of desk work, the topplate is raised to the height of the tabletop, and the side chest is widened together with the tabletop. By forming a flat work surface, it has both good storability and workability.

By the way, in such a side chest, as a mechanism for elevating and lowering the top plate, it is common to use a telescopic cylinder or the like in addition to a parallel link mechanism and an X link mechanism. In particular, in consideration of economy, operability, and the like, for example,
As disclosed in Japanese Patent Publication No. 18 and the like, the one utilizing a parallel link mechanism is considered to be the most excellent.

[0006]

However, in the side chest in which the upper plate is raised and lowered by the parallel link mechanism, the trajectory when the upper plate is raised and lowered draws an arc, so that the upper plate in the up state is compared with the lower plate in the down state. In this case, the side chest is laterally displaced, and overhangs the side chest main body in the horizontal direction. When the top plate protrudes in the horizontal direction in this way, it is not only undesirably aesthetically pleasing, but also becomes unstable, for example, when the user places his or her hand on the side protrusion of the top plate and carelessly weighs it. If it is applied, the side chest cannot support the load, causing a problem that the side chest rolls over.

The present invention solves the above-mentioned problems of the prior art, and provides a side chest for a desk which not only has good storage and workability, but also can maintain a good appearance and a stable state when the upper plate is raised. The purpose is to do.

[0008]

In order to achieve the above object, a desk side chest according to the present invention has a top plate supported on a top surface of a side chest main body by a parallel link mechanism so as to be able to move up and down, and the top plate is lowered. In the state, while being arranged at a position corresponding to the side chest main body upper surface, in the ascending state, it is a desk side chest arranged at a position laterally displaced horizontally from above the side chest main body, and the upper surface plate, in the ascending state, A sliding mechanism for slidably supporting in a horizontal direction so as to be disposed at a position corresponding to an upper side of the side chest main body; and a position corresponding to the upper side of the side chest main body in the ascending state; A slide lock mechanism for preventing slide movement at a position corresponding to the upper surface of the chest main body and fixing the position. Those comprising the gist.

In the desk side chest of the present invention,
By sliding the upper plate horizontally, the horizontal displacement of the upper plate caused by the rise of the parallel link mechanism can be absorbed, and the upper plate can be accurately arranged vertically above the side chest main body. Therefore, the upper plate does not protrude to the side, and a good appearance and a stable state can be secured.

By returning the upper plate to the initial slide position and lowering it, the upper plate is positioned corresponding to the upper surface of the side chest main body. In addition to securing the desk, the desk can be stored in the space below the tabletop without any trouble.

[0011]

1 to 3 show a desk side chest according to an embodiment of the present invention. As shown in these figures, this side chest is
A box-shaped side chest main body (10) and an upper surface plate (2) provided on the upper surface of the side chest main body (10)
0) and the top plate (20) with the side chest body (10)
A parallel link mechanism (30) that supports the upper plate (20) so as to be able to move up and down, a slide mechanism (40) that supports the upper plate (20) so as to be slidable along the horizontal front-rear direction, And a slide lock mechanism (50) for blocking.

The side chest main body (10) has a caster (16) for movement in addition to the drawer (15), and a concave portion (13) for accommodating the parallel link mechanism (30) and the like is formed on the upper surface. Have been.

As shown in FIG. 1 to FIG.
0) is formed in a rectangular shape following the planar shape of the side chest main body (10). Further, on the lower surface of the upper plate (20), rail mounting recesses (21) are provided on both sides in the front-rear direction.
(21) is formed, and lock pin engagement recesses (22) and (23) are formed at front and rear positions on one side, respectively. Elastic stoppers (25) made of an elastic member are attached to both front and rear ends on the lower surface side of the upper plate (20).

The slide mechanism (40) includes a base plate (41) made of an iron plate or the like, four hard synthetic resin sliders (42) having an H shape, and two hard synthetic resin rails (43) having a lip groove shape. It has.

The base plate (41) has a notch (41a) in the center of its front end and a lock mechanism mounting hole (41b) in the center of one side. Further, working holes (41) are provided at the center of both sides of the base plate (41).
c) is formed.

Sliders (42) are fixed by screws to the front and rear positions on the upper surface of the base plate (41).

Further, rails (43) are externally fitted to sliders (42) arranged in front and rear, respectively, and each rail (43) is configured to be slidable with respect to slider (42) in the front-rear direction.

Each rail (43) is connected to the upper plate (2).
Each of the rails (43) is fixed to the top plate (20) by screwing while being fitted in the rail mounting recesses (21) of (0). This screwing operation is performed by using the working holes (42c) formed in the base plate (41).

Thus, the upper plate (20) is slidable in the front-rear direction with respect to the base plate (41).

A slide lock mechanism (50) provided on one side of the base plate (41) is attached to the main body (51) and the main body (51) as shown in FIG. A lock pin (52) held in an advanced state by means and a swingably attached to the main body (51), and the rocking operation causes the lock pin (52) to retreat against the urging force of the urging means by a rocking operation. And an operation lever (53).

Then, the main body (51) is fixed to the base plate (41) such that the lock pin (52) is inserted into the mounting hole (41b) of the base plate (41) from the lower surface side.

In a normal state, the lock pin (52) is provided with the lock pin engaging recesses (22) (2) of the upper plate (20).
3), for example, the front lock pin engaging recess (2
2) to prevent the upper plate (20) from sliding with respect to the base plate (41). From this state, as shown by the imaginary line in FIG.
When the lock pin (52) is retracted by operating 3), the engagement is released from the engagement concave portion (22) and the engagement is released, and the slide movement of the upper surface plate (20) is allowed.

On the other hand, the parallel link mechanism (30) has two front and rear two substantially U-shaped link components (31) arranged in parallel with each other. Each link component (31)
The tip of both side pieces (31a) is the side chest body (10)
The center shaft piece (31b) is rotatably fixed to the lower surface of the base plate (41) of the slide mechanism (40), while being rotatably attached to both front and rear sides of the upper surface. Thus, when the top plate (20) is lifted together with the slide mechanism (40), the link component (3) is raised.
1) is raised while rotating backward, and the top plate (20)
Is configured to rise while maintaining a horizontal posture.

The ends of both side pieces (61) of a substantially U-shaped lock bar (60) arranged from one side of the link constituent members (31) to the other side through the front are connected to a base plate. It is rotatably mounted on both sides of the rear part of the lower surface of (41). Both side pieces (61) of this lock bar (60)
At the base end side, a stepped bent engaging step (62) is formed, and both side pieces of the front link component member (31) correspond to the engaging step (62). (31a)
The engagement pins (32) are respectively attached in a laterally protruding manner.

In this side chest, as shown in FIGS. 1 (a) and 2, the top plate (20) is fixed at the position where it is slid forward, that is, the slide lock mechanism (50). When the lock pin (52) is engaged with the front lock pin engaging recess (22) of the top plate (20), and the top plate (20) is lowered, the top plate (20) is The elastic stoppers (25) at the corners are placed so as to contact the four corners at the upper end of the side chest main body (10), and are configured to have a height that can be accommodated in the space below the tabletop of the desk.

In the side chest having the above structure, the upper plate (20) is moved from the storage state shown in FIGS.
Is lifted upward, the lock bar (60) slides backward on the engagement pin (32), and when the link component (31) is raised, the lock bar (60) is raised.
Reaches the position of the engagement pin (32), and the engagement step (62) automatically engages with the engagement pin (32) by its own weight. As a result, the lock bar (60) is connected to the base plate (41) and the front link component (31).
And a link member (3
The falling rotation of 1) is prevented, and the upper surface plate (20) is held at a predetermined height, that is, the same height as the desk top plate.

Further, from this state, as shown in FIGS. 1B and 3, the lock pin (52) of the slide lock mechanism (50) is retracted by operating the lever (53) to release the engagement. When the upper plate (20) is pulled forward, the upper plate (20) slides forward in the horizontal direction to reach a position corresponding to vertically above the side chest main body (10). When the lock pin (52) reaches the position corresponding to the rear lock pin engaging recess (23) of the upper surface plate (20), the lock pin (52) advances by the urging force of the urging means and automatically enters the recess (23). And the slide movement of the top plate (20) is prevented at that position.

In this state, the upper plate (20) is accurately arranged vertically above the side chest main body (10).

Next, when the side chest is to be returned from this state to the housed state, the lock pin (52) of the slide lock mechanism (50) is retracted by operating the lever (53) to move the side chest to the upper plate (20). After disengagement, the top plate (20) is pushed rearward. This allows the top plate (20)
Slides rearward in the horizontal direction and reaches the initial retracted position, the lock pin (52) reaches a position corresponding to the front lock pin engaging recess (22), and the lock pin (5)
2) is pushed forward and engaged with the concave portion (23), and the upper surface plate (2) is engaged.
The slide movement of 0) is prevented.

Subsequently, the central connecting piece (63) of the lock bar (60) is rotated so as to be lifted with a fingertip to release the engagement of the engaging step (62) with the engaging pin (32), In this state, the upper plate (20) is lowered while being pulled toward the user. As a result, the link component (31) falls forward, and the upper plate (20) is placed on the upper surface of the side chest main body (10).

As described above, according to the side chest, when the top plate (20) is raised and slid forward, the top plate (20) is accurately arranged vertically upward with respect to the side chest main body (10). You. Therefore, a good appearance can be ensured, and a stable state can be ensured. Therefore, even if the user puts his / her weight on the end of the upper plate (20) and puts his / her weight on it, there is no problem that the side chest rolls over.

Since the top plate (20) is held at the same height as the desk top plate, a wide and flat work surface can be formed together with the desk top plate, and good workability can be obtained.

Further, when the top plate (20) is lowered, the height of the desk can be accommodated in the space below the tabletop, so that it can be stored in the space below the tabletop without any trouble. Can be obtained.

The rail (4) of the slide mechanism (40)
3) is accommodated in the rail mounting recess (21) of the top plate (20), so that the rail (43) is exposed even when the side chest is viewed from the front or side. Therefore, a good appearance can be secured from this point.

The slide lock mechanism (50)
Since the sliding movement of the upper surface plate (20) can be prevented, for example, the upper surface plate (20) does not unintentionally move in the desk operation state, can perform the desk operation without hindrance, and can operate the upper surface plate (20) even in the storage state. ) Can be reliably prevented.

In the above-described embodiment, two lock pin engaging recesses in the slide lock mechanism (50) are formed at the front and rear, and the upper plate (20) is fixed at two positions, a front position and a rear position. However, in the present invention, a large number of lock engagement recesses may be formed so that the top plate (20) can be fixed at many positions. In this case, the front-back position of the upper plate can be finely adjusted according to the use situation.

In the present invention, a small container such as a pen tray may be provided at the front of the upper surface of the side chest main body (10). In this case, there is an advantage that small items such as writing utensils can be housed and arranged in the container.

In the present invention, the structure of the slide mechanism is not limited to the above-described embodiment, but may be any mechanism capable of sliding the upper plate (20) in the horizontal direction. May be. Further, in the above embodiment, only the top plate (20) is configured to slide, but in the present invention, the top plate (20) is slid.
May be configured to slide together with the parallel link mechanism (30).

The slide lock mechanism and the elevating lock mechanism such as a lock bar are not limited to those of the above-described embodiment.

Further, the side chest of the above-described embodiment raises each member of the parallel link mechanism (30) so as to rotate backward, but according to the present invention, the parallel link mechanism has a different rotation direction, for example, The present invention is also applicable to a side chest in which each member of the parallel link mechanism is erected to rotate forward, and a side chest in which each member of the parallel link mechanism is erected to rotate sideways. In these types of side chests, the upper plate may be slid in a direction that can absorb the horizontal displacement of the upper plate caused by the rise of the parallel link mechanism.

In the side chest of the above embodiment, the upper plate is raised and then slid, but in the side chest of the present invention, the upper plate is slid and then raised. Is also good.

[0042]

As described above, according to the desk side chest of the present invention, not only good storage and workability can be obtained, but also a good aesthetic appearance and a stable state can be ensured when the upper plate is raised. The effect can be obtained.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a desk side chest according to an embodiment of the present invention, wherein FIG. 1 (a) is a perspective view showing a state in which a top plate is lowered, and FIG. FIG.

FIG. 2 is a side view showing the upper part of the side chest in the embodiment in a state where the upper plate is lowered.

FIG. 3 is a side view showing the upper part of the side chest of the embodiment in a state where the upper plate is raised.

FIG. 4 is an exploded perspective view showing an upper part of the side chest of the embodiment.

FIG. 5 is an exploded perspective view showing a slide mechanism in the side chest according to the embodiment.

FIG. 6 is a front sectional view showing an upper part of the side chest of the embodiment.

FIG. 7 is an enlarged cross-sectional view showing the periphery of a slide lock mechanism applied to the side chest of the embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Side chest main body 20 ... Top plate 30 ... Parallel link mechanism 40 ... Slide mechanism 50 ... Slide lock mechanism

Continuation of the front page (58) Field surveyed (Int. Cl. ⁶ , DB name) A47B 17/00 A47B 46/00 501 A47B 17/02 A47B 17/03

Claims (1)

(57) [Claims] An upper surface plate is supported on an upper surface of a side chest main body by a parallel link mechanism so as to be movable up and down. When the upper surface plate is lowered, the upper surface plate is arranged at a position corresponding to the upper surface of the side chest main body. A desk side chest arranged at a position laterally displaced horizontally from above the chest main body, wherein the upper side plate is slid along the horizontal direction so as to be able to be arranged at a position corresponding to the upper side chest main body in a raised state. A slide mechanism for freely supporting the upper plate, a position corresponding to an upper side of the side chest main body in a raised state, and a position corresponding to an upper surface of the side chest main body in a lowered state to prevent sliding movement and fix the position. A side chest for a desk, comprising a slide lock mechanism.