JP4558992B2 - desk - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a desk on which optional parts such as a shelf board and a pinup board can be easily attached above a top board as needed.
[0002]
[Prior art]
As a conventional desk of this type, for example, as disclosed in Japanese Patent Application Laid-Open No. 2000-287760, corners on both sides of the rear part of the top plate are notched and formed on the upper ends of the left and right rear legs exposed below the top part. A pair of left and right optional component support columns is inserted into the inserted hole, and optional components such as shelves are mounted on the reeds or both columns that connect the upper ends of both columns. is there.
[0003]
[Problems to be solved by the invention]
However, in the conventional desk as described above, when the optional part is not attached, the supporting column is removed from the upper end of the rear leg, so that the insertion hole is exposed upward and is unsightly.
Therefore, it is necessary to close the upper end opening of the insertion hole with an appropriate cover.
[0004]
No matter how well the cover is formed, it cannot be completely integrated with the top plate, and there is a separate member at the rear corner of the top plate. It is a factor.
[0005]
In view of the above-described problems of the prior art, the present invention can improve the appearance when the optional component is not attached and can easily and firmly attach the support member for supporting the optional component. The purpose is to provide a desk with a simple structure.
[0006]
[Means for Solving the Problems]
According to the present invention, the above problem is solved as follows.
(1) A fitting hole into which a support member for supporting an optional part can be inserted is provided on the upper surface of the rear part of the top board support that supports the top board, and the rear part of the top board support provided with the fitting hole; The positional relationship with the top plate is such that the upper end opening of the fitting hole is covered with the rear portion of the top plate, and the rear end of the top plate is located in front of the upper end opening of the fitting hole. It is possible to change to a hole open state in which the upper end opening is exposed.
[0007]
(2) In the above item (1), the top plate is positioned so as to cover the upper end opening of the fitting hole, and the rear end is located in front of the fitting hole so that the upper end opening of the fitting hole is exposed. The mounting position can be changed to the front position.
[0008]
(3) In the above item (2), the top plate can be fastened by the fastening means at both the rear position and the front position.
[0009]
(4) In the above item (2) or (3), the top plate is attached to the top plate support so as to be slidable in the front-rear direction between the front position and the rear position.
[0010]
(5) In the above (1), the top plate is fixed to the front portion of the top plate support, the rear portion of the top plate support provided with the fitting hole on the top surface, and the upper end opening of the fitting hole is the top plate. It is possible to move in the front-rear direction to the front position covered by the rear part and to move to the rear position where the upper end opening of the fitting hole is located behind the rear end of the top board and exposed upward. Installing.
[0011]
(6) In the above (5), a fixing means for fixing the rear part of the top board support to the front part of the top board support at the front position and the rear position is provided.
[0012]
(7) In any one of the above items (1) to (6), the top plate support body includes a pair of left and right rear legs, and a fitting hole whose upper end opens is provided in each rear leg.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
1 to 6 show a first embodiment of the present invention.
The desk (1) is composed of a top plate (2) and a top plate support (3) that supports the top plate (3), and the top plate support (3) has cylindrical vertical legs (4 ) And the middle part of side connection rods (5) and (5) made of square tubes facing in the front-rear direction, which are fixed by welding or the like, with intermediate connection rods (6) facing in the left-right direction. ing.
[0014]
The upper ends of the left and right rear legs (4) and (4) are opened upward, and the hollow parts extending from the upper ends to the lower ends of the rear legs (4) and (4) are used in a support member (14) for supporting optional parts described later. Fitting holes (7) and (7) into which a pair of left and right supports (15) and (15) can be inserted are formed.
[0015]
Bolt insertion holes (8) are provided at two positions in the front and rear of each side connecting rod (5) so as to penetrate in the vertical direction, and the bottom surface of the top plate (2) is shown by a solid line in FIG. As shown in the figure, when the top plate (2) is set to a rear position covering the upper end openings of the fitting holes (7) and (7) at the rear part, four bolts adapted to be aligned with each bolt insertion hole (8) As shown by an imaginary line in FIG. 2, the embedded nut (9), the top plate (2), the rear end thereof is positioned in front of the fitting hole (7), and the upper end opening of the fitting hole (7) is Four embedded nuts (10) are provided so as to align with the bolt insertion holes (8) when the front position is exposed.
[0016]
Therefore, the top plate (2) can be supported as a rear position by screwing the upper end of the bolt (11) inserted from below into each bolt insertion hole (8) to the front embedded nut (9). It can be attached to the body (3). Similarly, by screwing the upper end of the bolt (11) to the rear embedded nut (10), the top plate (2) can be used as the front position. Therefore, the upper end opening of the fitting hole (7) is covered by the rear part of the top plate (2), with respect to the positional relationship between the rear part of the top plate support (3) and the top plate (2). Change to a hole open state where the rear end of the top plate (2) is located in front of the upper end opening of the fitting hole (7) and the upper end opening of the fitting hole (7) is exposed. Can do.
As shown in FIG. 2 and FIG. 3, the top plate (2) is guided to the front and rear portions of the lower surface of the top plate (2) so that it can slide between the front position and the rear position in the front-rear direction. A guide member (12) is provided.
[0017]
Each guide member (12) has a mounting screw (12a) fixed to the lower surface of the top plate (2) with a set screw (13), and is suspended from the outer end of the guide member (12). A hanging piece (12b) that is in sliding contact with the side surface, and an outward bent piece (12c) that is bent horizontally outward from the lower end of the hanging piece (12b) and engages the lower surface of each side connecting rod (5). It is made up of.
[0018]
The length of each guide member (12) is such that when the top plate (2) is in the rear position, the rear end abuts against the front surface of the intermediate connecting rod (6) or the front surface of the rear leg (4). When the is in the forward position, the front end is set to contact the rear surface of the front leg (4) or the rear surface of the intermediate coupling rod (6).
[0019]
The guide member (12) allows the top plate (2) to slide freely back and forth without being detached from the top plate support (3) even when the bolt (11) is removed. Since it is positioned at the rear position, the bolt (11) can be easily screwed into the desired embedded nut (9) (10).
[0020]
4 to 6 show the state in which the right support (15) of the support member (14) for supporting optional parts is fitted into the fitting hole (7) with the top plate (2) as the front position. ing.
[0021]
As shown in FIG. 1, the support member (14) has two upper and lower horizontal supports (16) (16) (16) (16) parallel to each other at the upper ends of a pair of left and right supports (15) and (15) facing upward and downward. ) Are connected with a horizontal connecting frame (18) formed by connecting a plurality of inclined rods (17), and the pinup board (18) is connected to the horizontal connecting frame (18) and the left and right supports (15) (15). 19) Optional parts such as a bracket (21) for locking the tray (20) and a cross screen (22) can be appropriately mounted.
[0022]
A plurality of vertically long engagement holes (23) are formed at equal intervals in the vertical direction on the opposing surfaces of the left and right supports (15) and (15).
[0023]
(24) and (25) are a pair of substantially semi-cylindrical sleeve division pieces which are formed so as to form a vertically oriented sleeve having a diameter-enlarged flange at the upper end portion by being opposed to each other.
[0024]
Each sleeve split piece (24) (25) is formed with a flange half (25b) in the shape of a vertically divided half truncated cone at the upper end of the semi-cylindrical part (24a) (25a) facing vertically The upper and lower vertical notches (26) and (26) are arranged on either one of the opposite side portions, and the upper and lower portions are fitted on the other notches (26) and (26) on the other side. Each of the vertically long projections (27) and (27) is formed by projecting.
[0025]
At the center of the inner surface of one sleeve segment (25), there are two protrusions (28) and (28) that can be fitted in the two engagement holes (23) and (23) of the support (15). The engaging holes (23) and (23) are provided with the same vertical interval as the vertical interval.
[0026]
Each support (15) is fitted with the projections (28) (28) of one sleeve split piece (25) in desired engagement holes (23) (23), and both sleeve split pieces (24 ) (25) projections (27) and (27) are fitted into the corresponding notches (26) and (26), and both sleeve split pieces (24) are cylindrical with each other with the column (15) in the middle. In this state, the sleeve divided pieces (24) and (25) are fitted together with the support (15) into the fitting hole (7) at the upper end of the rear leg (4), and the flange The lower ends of the half portions (24b) and (25b) are brought into contact with the upper end surfaces of the rear legs (4) to be supported by the rear portion of the top plate support (3).
[0027]
By selecting the engagement hole (23) (23) of the support (15) that fits the protrusion (28) (28), the height of the support (15) (15) is adjusted stepwise. The left and right sleeve split pieces (25) (25) and the protrusions (28) (28) By fitting the two sleeve segments (24) and (25) to the respective supports (15), the left and right supports (15) and (15) can be easily adjusted in height. it can.
[0028]
FIG. 7 shows a second embodiment of the present invention. Note that the same members as those in the first embodiment are denoted by the same reference numerals and illustrated, and detailed description thereof is omitted.
[0029]
In this example, the left and right side connecting rods (5), the intermediate connecting rod (6), and the pair of left and right front legs (4) (4) in the top plate support (3) are fixed together and fixed thereon. From the rear end of a pair of left and right side connection rods (5) and (5) that are fixed to the top plate (2), and to the upper part of the left and right pair of rear legs (4) and (4) The armband (29) facing the front is slidably fitted in the front-rear direction, and the upper end opening of the fitting hole (7) is covered by the rear part of the top plate (2) as shown by the solid line in FIG. The upper end opening of the fitting hole (7) is located behind the rear end of the top plate (2) and can be moved in the front-rear direction to the rear position exposed upward, as indicated by the position and the imaginary line. .
[0030]
Also, a long hole (30) facing in the front-rear direction is provided in the rear part of the inner surface of the left and right side connecting rods (5), and a butterfly bolt (31) as a fixing means inserted through the long hole (30) By screwing into a screw hole (not shown) provided on the inner surface of (29), the rear leg (4) and the armband (29) can be connected to the side connecting rod at the aforementioned front position and rear position. (5) can be fastened and fixed.
[0031]
Also in this second embodiment, the positional relationship between the left and right rear legs (4) (4) and the top plate (2), which are the rear portions of the top plate support (3) provided with the fitting holes (7), is determined. The upper end opening of the fitting hole (7) is covered with the rear portion of the top plate (2), and the rear end of the top plate (2) is located in front of the upper end opening of the fitting hole (7). The hole opening state in which the upper end opening of the fitting hole (7) is exposed can be changed, and the same effect as in the first embodiment can be obtained.
[0032]
【The invention's effect】
According to the present invention, the following effects can be achieved.
(a) According to the invention of claim 1, when the optional part is not attached, the fitting hole can be closed by the rear part of the top plate, so that the appearance is good and a special cover for closing the fitting hole is provided. Since the top plate itself does not need to be cut out or specially processed, the structure can be simplified and the top plate can be easily manufactured.
Also, when installing optional parts, insert the support member for supporting optional parts into the fitting holes by shifting the top plate and the rear part of the top plate support in the front-rear direction so that the fitting holes are exposed. Therefore, the mounting operation is simple, and the support member can be firmly supported on the rear portion of the top plate support without using a bracket or the like.
[0033]
(b) According to the invention of claim 2, the top plate support and the top plate are manufactured separately, and the top plate is attached to the top plate support at two positions, a front position and a rear position. It is only necessary to be able to do this, so that it can be implemented easily, and the structure can be simplified and manufactured at low cost.
[0034]
(c) According to the invention of claim 3, the top plate can be firmly fixed to the top plate support at both the rear position and the front position.
[0035]
(d) According to the invention of claim 4, the work for changing the mounting position of the top plate is facilitated.
[0036]
(e) According to invention of Claim 5, a movable part can be made small and the movement can be performed lightly and easily. That is, it is not necessary to move a portion having a large mass such as a top plate.
[0037]
(f) According to the invention of claim 6, it is possible to prevent the rear portion of the top plate support from moving with respect to the front portion.
[0038]
(g) According to the invention of claim 7, it is not necessary to provide a fitting hole in a special member, the structure can be simplified, and the appearance of the appearance can be improved.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view of a desk according to a first embodiment of the present invention and an optional part to be mounted on the desk as viewed obliquely from the rear.
FIG. 2 is a partially broken side view of the upper part of the desk.
FIG. 3 is an enlarged longitudinal front view taken along line III-III in FIG.
FIG. 4 is an enlarged side view of the upper part of the rear leg when the top plate is at the front position and the support member is fitted to the rear leg.
FIG. 5 is a longitudinal sectional view taken along line VV in FIG. 4;
FIG. 6 is an exploded perspective view of a mounting portion of the support member.
FIG. 7 is a side view of the central longitudinal section of the upper part of the second embodiment of the present invention.
[Explanation of symbols]
(1) Desk
(2) Top plate
(3) Top plate support
(4) Leg
(5) Side connection rod
(6) Intermediate connection rod
(7) Mating hole
(8) Bolt insertion hole
(9) (10) Embedded nut
(11) Bolt
(12) Guide member
(12a) Mounting piece
(12b) Hanging piece
(12c) Outward bending piece
(13) Set screw
(14) Support member
(15) Support
(16) Yokohama
(17) Inclined bowl
(18) Horizontal connection
(19) Pinup board
(20) Tray
(21) Bracket
(22) Cross screen
(23) Engagement hole
(24) (25) Sleeve split piece
(24a) (25a) Semi-cylindrical part
(24b) (25b) Half flange
(26) Notch
(27) Protrusion
(28) Projection
(29) Arm
(30) Long hole
(31) Butterfly bolt (fixing means)

Claims (7)

A fitting hole into which a support member for supporting optional parts can be inserted is provided on the upper surface of the rear part of the top board support that supports the top board, and the rear part of the top board support body provided with this fitting hole, The upper end opening of the fitting hole is located in a closed state where the upper end opening of the fitting hole is covered by the rear part of the top plate, and the rear end of the top plate is located in front of the upper end opening of the fitting hole. A desk characterized in that it can be changed to a hole open state in which is exposed. The mounting position of the top plate can be changed between a rear position covering the upper end opening of the fitting hole and a front position where the rear end is located in front of the fitting hole and the upper end opening of the fitting hole is exposed. The desk according to claim 1 attached to a top plate support. The desk according to claim 2, wherein the top plate can be fastened by fastening means at both the rear position and the front position. The desk according to claim 2 or 3, wherein the top plate is attached to the top plate support so that the top plate can slide between the front position and the rear position in the front-rear direction. The top plate is fixed to the front portion of the top plate support, the rear portion of the top plate support provided with a fitting hole on the upper surface, the front position where the upper end opening of the fitting hole is covered by the rear portion of the top plate, The desk according to claim 1, wherein the upper end opening of the fitting hole is located behind the rear end of the top plate and is movable in the front-rear direction to the rear position exposed upward, and is attached to the front portion of the top plate support. The desk according to claim 5, further comprising fixing means for fixing the rear part of the top board support to the front part of the top board support at the front position and the rear position. The desk according to any one of claims 1 to 6, wherein the top plate support includes a pair of left and right rear legs, and a fitting hole having an upper end opened in each rear leg.

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