JPH07184721A - Desk - Google Patents

Abstract

PURPOSE:To widely use an upper surface of a top plate as a work surface by arranging a luminaire above the top plate only when it is necessary, and arranging it under the top plate when it is unnecessary. CONSTITUTION:A penetrating opening 4 is arranged in a top plate 2 of a desk 1, and a raising-lowering stand 5 capable of being raised and lowered is arranged in the opening 4. The raising-lowering stand 5 has a lower shelf board 6 which closes the opening 4 at the end of the raising operation and provides an upper surface on the same plane with an upper surface of the top plate 2 and an upper shelf board 7 which closes the opening 4 at the end of the lowering operation and provides an upper surface on the same plane with the upper surface of the top plate. A luminaire 19 is installed on an under, surface of the upper shelf board 7.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION This invention relates to a desk,
In particular, it relates to an improved desk on the top plate.

[0002]

2. Description of the Related Art A desk has a structure, a design, an application,
There are many types of such desks, but basically any desk is provided with a top plate and leg members for holding the top plate at a predetermined height from the floor surface. .

The top plate provides a work surface for performing work on a desk, but the top plate is often an article for assisting work such as a lighting fixture such as a desk lamp or a book stand. Is placed.

[0004]

However, the above-described lighting equipment and book stand are not always necessary for work on a desk. Since these lighting fixtures, bookshelves, etc. reduce the effective area of the work surface provided by the top plate, they may be a hindrance to the work under circumstances where they are not needed.

Therefore, an object of the present invention is to provide a desk which can solve the above-mentioned problems.

[0006]

SUMMARY OF THE INVENTION The present invention is directed to a desk provided with a top plate and leg members for holding the top plate at a predetermined height from the floor surface, and is directed to a desk as described above. In order to solve the problem, it is characterized by having the following configuration.

That is, the top plate is provided with a penetrating opening. An elevating table that can be moved up and down is arranged in this opening. This lifting platform closes an opening at the end of its lifting operation and provides a lower shelf plate that provides an upper surface flush with the upper surface of the top plate,
At the end of the lowering operation, the upper shelf that closes the opening and provides a top surface flush with the top surface of the top plate is provided. A space having a front surface as an opening is formed between the lower shelf plate and the upper shelf plate.

In the preferred embodiment, a lighting fixture is mounted on the lower surface of the upper shelf. On the other hand, so as to define both side surfaces of the space formed between the lower shelf plate and the upper shelf plate,
When the side plate that connects the lower shelf plate and the upper shelf plate is provided on the lift table, this lift table can be used as a main stand.

[0009]

When the above-mentioned lighting equipment or book stand is not used, the elevator is positioned at the end of its descending operation. At this time, the upper shelf closes the opening and gives an upper surface flush with the upper surface of the top plate. On the other hand, when using a lighting fixture, a book stand, or the like, the lifting platform is positioned at the end of the lifting operation. At this time, the lower shelf closes the opening and provides a top surface flush with the top surface of the top plate. Further, the upper shelf board is brought to a predetermined height from the upper surface of the top board.

[0010]

As described above, according to the present invention, when the lighting fixture, the book stand, etc. are not used, the elevating table is lowered, and the upper shelf plate closes the opening of the top plate, whereby the ceiling plate is closed. All of the upper surface of the plate can be used as a work surface.

On the other hand, when it is desired to use a lighting fixture, a book stand or the like during work, it is only necessary to raise the elevating table. At this time, the lower shelf closes the top plate opening,
Not only will some objects on the top plate not fall through the opening, but the top surface of the lower shelf will be flush with the top surface of the top plate. , Can be used as a work surface.

[0012]

1 is a perspective view showing a desk 1 according to an embodiment of the present invention. As shown in FIG. 1, the desk 1 has a top plate 2
And a leg member 3 that holds the top plate 2 at a predetermined height above the floor.

At a position relatively rearward of the top plate 2, there is provided, for example, a rectangular opening 4 penetrating therethrough. In the opening 4,
An elevating table 5 that can move up and down is arranged. FIG. 2 is an enlarged front view showing the lifting table 5. 3 is a sectional view taken along line III-III in FIG. 2, and FIG. 4 is a sectional view taken along line IV-IV in FIG.

The elevator board 5 is shown in FIG.
As shown by the solid line in FIG. 4 to FIG. 4, a lower shelf plate 6 is provided which closes the opening 4 at the end of its ascending operation and provides an upper surface flush with the upper surface of the top plate 2. Also, the lifting table 5 is shown in FIG.
As shown in FIG. 2B and shown in phantom in FIGS. 2 to 4, the upper shelf 7 is provided which closes the opening 4 at the end of its descending operation and provides an upper surface flush with the upper surface of the top plate 2. A space 8 having an opening on the front surface is formed between the lower shelf plate 6 and the upper shelf plate 7.

In this embodiment, the lower shelf plate 6 and the upper shelf plate 7 are
And are connected to each other by the back plate 9 on the back surface, and the distance between them is maintained. Therefore, not only the front surface of the space 8 but also both side surfaces are open. In addition, in order to maintain the space between the other shelf plate 6 and the upper shelf plate 7, a pillar-shaped member may be used instead of the back plate 9.

In order to make it possible to move up and down the above-mentioned lift base 5,
A rack 10 is attached to the lower surface of the lower shelf plate 6 so as to extend in the vertical direction, and guide bars 11 and 12 are attached to both sides of the rack 10 so as to extend in the vertical direction. On the other hand, a bracket 13 is mounted on the leg member 3 of the desk 1 so as to guide the longitudinal movements of the rack 10 and the guide rods 11 and 12. The bracket 13 has a U-shaped cross section, and the rack 10 and the guide rods 11 and 12 penetrate through the upper and lower wall portions extending in the horizontal direction. In particular, a sleeve 14 that movably receives the rack 10 is attached to an upper wall portion of the bracket 13 by a nut 15.

A motor 16 is arranged in the bracket 13. The motor 16 has a built-in reduction mechanism, and an output shaft 17 thereof is provided with a pinion 18 that meshes with the rack 10. Therefore, by rotating the motor 16 in the forward and reverse directions, the rack 10 is moved in the vertical direction, and as a result, the elevating table 5 is moved up and down. The elevating operation of the elevating table 5 is further stabilized by the guide rods 11 and 12.

The motor 16 is rotated either forward or backward in any desired direction in order to raise or lower the lift table 5, but the motor 16 is stopped at each of the end of the ascending operation and the end of the descending operation. Therefore, although not shown, it is preferable to provide a limit switch. Note that the operator himself may visually determine the timing of stopping the motor 16. Further, the elevating table 5 may be moved up and down manually without using the driving means such as the motor 16 as described above.

As shown in FIG. 1 (a), for example, a lighting fixture 19 is attached to the lower surface side of the upper shelf 7 of the lifting table 5. Therefore, according to this embodiment, when the luminaire 19 is required, the lifting table 5 may be raised as shown in FIG. At this time, the lower shelf plate 6 closes the opening 4 of the top plate 2 and gives an upper surface flush with the upper surface of the top plate 2. On the other hand, when the luminaire 19 is no longer necessary, as shown in FIG. 1B, the elevating table 5 may be lowered. In this state, the upper shelf 7 of the lifting table 5 closes the opening 4 and gives a top surface flush with the top surface of the top plate 2.

In the embodiments described above, the lift 5 was used to mount the luminaire 19, but such lift may be directed to other applications. FIG. 5 is a perspective view showing a desk 1a according to another embodiment of the present invention. 5, the elements corresponding to the elements shown in FIG. 1 are designated by the same reference numerals, and the duplicated description will be omitted.

With reference to FIG. 5, the lift 5a is intended to be used, for example, as a book stand. Therefore, in addition to the lower shelf plate 6, the upper shelf plate 7 and the back plate 9 provided in the lifting table 5 in the embodiment shown in FIG.
Side plates 20 and 21 that define both side surfaces of the.
These side plates 20 and 21 include a lower shelf plate 6 and an upper shelf plate 7.
And are connected.

When a book stored in the lifting table 5a is needed, the lifting table 5a is raised as shown in FIG. 5, and when such a book is no longer needed, The elevating table 5a is lowered so as to be in a state corresponding to the state shown in 1 (b).

In the present invention, the function given to the lifting table 5 or 5a can be arbitrarily changed. Therefore, the shape or structure of the lift can be changed arbitrarily. Further, the openings may be provided at a plurality of positions on the top plate, and the lifts may be arranged in association with the respective openings.

[Brief description of drawings]

FIG. 1 is a perspective view showing a desk 1 according to an embodiment of the present invention, (a) showing a state where a lift 5 is raised, (b).
Indicates a state where the lift table 5 is lowered.

FIG. 2 is an enlarged front view of the lifting table 5 shown in FIG.

FIG. 3 is a sectional view taken along the line III-III in FIG.

4 is a cross-sectional view taken along the line IV-IV in FIG.

FIG. 5 is a perspective view showing a desk 1a according to another embodiment of the present invention.

[Explanation of symbols]

 1, 1a Desk 2 Top plate 3 Leg member 4 Opening 5, 5a Elevating stand 6 Lower shelf 7 Upper shelf 8 Space 10 Rack 16 Motor 18 Pinion 19 Lighting fixture 20,21 Side plate

Claims (3)

[Claims] 1. A desk comprising a top plate and a leg member for holding the top plate at a predetermined height from a floor surface, wherein the top plate is provided with a penetrating opening, and the opening is provided in the opening. An elevating table that can be moved up and down is disposed, the elevating table closing the opening at the end of its ascending operation and providing a top surface flush with the top surface of the top plate, and the evacuation table at the end of its descending operation. An upper shelf that closes the opening and provides a top surface flush with the upper surface of the top plate is provided, and a space having an opening at the front surface is formed between the lower shelf plate and the upper shelf plate. A desk characterized by that. 2. The desk according to claim 1, wherein a lighting fixture is attached to a lower surface side of the upper shelf plate. 3. The desk according to claim 1, wherein the elevating table further includes side plates that connect the lower shelf plate and the upper shelf plate so as to define both side surfaces of the space.