JP4616738B2 - Desk with extended top - Google Patents

Description

  The present invention is, for example, a table with an extended top plate in which two top plates are arranged so as to intersect each other in an L shape in plan view, and the work area of the corner portion recessed toward the rear of their front ends can be expanded ( Table).

In order to expand the mounting area for OA equipment, articles, etc., or to secure a large working area, the working area of the corner portion recessed toward the rear formed on the front end of the two top plates was expanded. As a desk, there exist some which are described in patent documents 1 and 2, for example.
Japanese Utility Model Publication No. 5-13234 (FIG. 5) Japanese Patent No. 3092528

In each of the desks described in Patent Documents 1 and 2, a top plate extension is integrally provided on the front side edge of one top plate, and the top plate extension is provided with two top plates. It arrange | positions in the corner part recessed toward the back formed in the cross | intersection part of a board, and the work area | region of the part is expanded.
For this reason, the shape of the one top plate having the top plate extension is complicated, and a lot of man-hours are required for the production, and the cost increases.

  Further, if the top plate extension part is integrally protruded, there is a problem that the top plate cannot be shared with a normal top plate that does not require the top plate extension part.

  The present invention has been made in view of the above problems, and allows the work area of the corner portion recessed at the rear formed at the front end thereof to be easily expanded without making the top plate complicated. An object of the present invention is to provide a desk with an extended top plate that can reduce the manufacturing cost of the top plate.

According to the present invention, the above problem is solved as follows.
(1) An extension top plate formed by connecting a downward piece to a front edge of a thin plate-like upper piece at a corner portion recessed in a V shape in a plan view formed rearward at the front end of the top plate. The downward pieces are inclined to the left and right front ends of the top plate forming the corner portion, the left and right end portions of the downward pieces are in contact with the left and right front ends, respectively, and the upper piece is the The upper portion of the corner portion is covered and mounted on the top surface of the top plate.

(2) In the above item (1), by connecting a backward horizontal piece to the lower end of the downward piece, the front end of the extended top plate has a backward U-shaped cross section when viewed from the side, It fits to the left and right front end portions of the corner portion of the top plate.

(3) In the above item (1) or (2), the lower surface of the upper piece of the extended top plate is fixed to the lower surface of the top plate by a fixing means.

(4) In the above item (3), the fixing means is fixed to the lower surface of the upper piece, and can be brought into contact with the left and right front ends of the corner portion of the top plate. Are provided on the lower surface of the top plate, an L-shaped mounting piece comprising a clamping piece that is in contact with the lower surface of the front end portion of the top portion of the top plate, a fixing screw that is inserted through the clamping piece from below. The upper end of the fixing screw is a female screw that is screwed together.

(5) In the above item (4), the angle formed by the pair of contact pieces and the left and right front ends of the corner portion of the top plate is made equal in plan view.

(6) In the above (4) or (5), the holding piece is provided with a long groove that opens rearward and through which a fixing screw that is screwed into a female screw on the lower surface of the top plate is slidably inserted.

(7) In the above item (3), the fixing means is fixed to the lower surface of the extended top plate, and a pair of left and right contact pieces capable of contacting the left and right front ends of the corner portion of the top plate, and both the contact pieces An L-shaped cross-section attachment piece made up of a holding piece located below the front end of the corner portion of the top plate, which is connected to the lower end, and screwed into the screw hole from below to form the holding piece, and the upper end is It shall consist of the fixing screw which contacts the lower surface of a board.

  According to the first aspect of the present invention, the V-shaped corner portion that is recessed toward the rear formed at the front end of the top plate is easily and nicely expanded by the extended top plate, and the portion is expanded into the article. It can be effectively used as a mounting area or work area.

  In addition, when the V-shaped corner portion is provided by crossing two top plates, the work area of the corner portion can be expanded using the extended top plate, so that the top plate can be placed on one top plate as in the past. There is no need to make the top plate in a complicated shape by integrally projecting the plate extension, etc., and the manufacturing cost can be reduced, and the top plate is shared with the usual top plate You can also.

According to the second aspect of the present invention, since the both end portions of the front end portion of the extended top plate are fitted to the left and right front end portions of the corner portion of the top plate, the front end of the extended top plate wobbles in the vertical direction. Is prevented.
Moreover, the appearance from the front of an extended top plate improves.

  According to the invention described in claim 3, since the lower surface of the upper piece of the extended top plate is fixed to the lower surface of the top plate by the fixing means, the fixing means is not exposed on the surface, and the appearance of the desk is improved.

According to the invention described in claim 4, the pair of abutment pieces can be brought into contact with the left and right front ends of the corner portion of the top plate to position the extended top plate, and the bottom surface of the top piece and the sandwiching piece can be used to Since the extension top plate can be fixed to the lower surface of the top plate with the fixing screws in a state where the front end portion of the corner portion of the plate is sandwiched between the top and bottom, the mounting strength of the extension top plate is increased.
Further, when the corner portions are formed by intersecting the two top plates, the lower surfaces of the two top plates can be connected to each other by the extended top plate, so that the connection strength between the two top plates is increased.

  According to the fifth aspect of the present invention, the extended top plate can be positioned and attached very easily and simply by bringing the pair of contact pieces into contact with the left and right front ends of the corner portion of the top plate.

  According to the sixth aspect of the present invention, the extension top plate can be easily attached and detached by simply screwing the fixing screw into the female screw at all times and loosening or tightening it.

  According to the seventh aspect of the present invention, since it is not necessary to provide a female screw for screwing the fixing screw on the lower surface of the top plate, the number of processing steps is reduced, and it is necessary to align the female screw and the fixing screw. Therefore, even if there are some manufacturing errors in the extended top plate, the extended top plate can be easily fixed to the top plate with a fixing screw.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a front perspective view of a desk with an extended top plate of the present invention. A desk (1) is a main desk (2) that is long on the side and an auxiliary desk (front desk) that is arranged to face the front at the left end. 3), and the rectangular top plates (4) and (5) are connected so as to form an L-shape in plan view, and the two top plates (4) and (5) are seated by the office worker. This is a region (S).

A corner portion formed at the front end where the top plates (4) and (5) intersect (hereinafter described with the front side in FIG. 1 as the front) and having a V-shape of 90 ° in a plan view, which is recessed backward. (6) has an extended top plate (7) attached thereto,
The V-shaped shape of the corner portion (6) includes an acute angle of 90 ° or less and an obtuse angle of 90 ° or more and 180 ° or less.

  As shown in FIGS. 2 to 4, the extended top plate (7) can block a required area above the corner portion (6) with, for example, a thin steel plate, and the top surfaces of both top plates (4) and (5). A rectangular flat plate-like upper piece (7a) that can be placed on the top plate, and a downward piece (vertical dimension) that is connected to the front edge of the upper piece (4a, 5) and is approximately equal to the thickness of the top plate (4) (5) 7b) and a backward horizontal piece (7c) bent backward from its lower end. The front end of the extended top plate (7) has a backward U-shaped cross section, and both end portions are both The top plate (4) (5) can be fitted to the left and right front end portions of the corner portion (6). Both end portions of the rearward horizontal piece (7c) come close to or abut against the lower surface of the front end portion of the corner portion (6) of the top plates (4) and (5) when the expansion top plate (7) is attached. Yes.

  A plurality of thin rubber pads (8) for cushioning and slipping are fixed to the lower surface of the portion of the extended top plate (7) placed on the top plates (4) and (5).

  On the lower surface of both sides near the front end of the extended top plate (7), the included angle in plan view is substantially equal to the angle of the front end of the corner portion (6) where the top plates (4) and (5) intersect at right angles. The horizontal piece (9a) at the upper end of the pair of attachment pieces (9) and (9) having an L-shaped cross section that faces obliquely at 45 ° from the vicinity of the corners on both sides is fixed so as to be 90 °.

  The vertical contact pieces (9b) of the mounting pieces (9) can come into contact with the left and right front ends (5a) and (4a) of the corners (6) of the top plates (4) and (5), and the bottom horizontal The left and right front end portions of the corner portion (6) of the top plates (4) and (5) can be sandwiched from above and below by the sandwiching piece (9c) forming the upper surface and the lower surface of the upper piece (7a) of the extended top plate (7). It is like that.

  When both the abutting pieces (9b) are brought into contact with the front ends of the top plates (4) and (5), both side ends of the downward pieces (7b) of the front edge are also attached to the top plates (4) and (5). It comes in contact with the front end face.

  The sandwiching piece (9c) of both attachment pieces (9) has a long groove that opens in the rear direction and 45 ° obliquely with respect to the attachment piece (9), that is, the front-rear direction that is the attachment direction of the auxiliary top plate (7). (10) and (10) are formed so as to be parallel to each other in plan view.

An embedded nut (11) for fixing the clamping piece (9c) of the mounting piece (9) to the lower surface of the front end portion of the corner portion (6) of the top plate (4) (5) with a fixing screw (12) described later. ) (11) is press-fitted.
To attach the extended top plate (7) to the corner (6) where the top plates (4) and (5) intersect, insert the downward facing piece (7b) toward the corner (6). The rear part of the upper piece (7a) of the extended top plate (7) is placed on the upper surface of both the top plates (4) and (5), and the pair of opposite sides of the downward piece (7b) of the front edge are paired with one pair. The abutment piece (9b) of the mounting piece (9) is brought into contact with the left and right front ends (5a) and (4a) of the corner portion (6) of the top plate (4) and (5) at an angle, thereby extending the top plate ( 7) Fit both side ends of the U-shape to the front ends of both top plates (4) and (5), and at the same time, insert the clamping pieces (9c) of both mounting pieces (9) into the top plate (4) It is made to contact the lower surface of the front end of (5).

  Next, as shown in FIG. 4, the male screw portion of the fixing screw (12) that can be turned manually is inserted from below into the long groove (10) formed in the both clamping pieces (9 c), and this is connected to the top plates (4 ) (5) by screwing and tightening to the embedded nut (11) on the lower surface, the front ends of both top plates (4) and (5) are connected to the top piece (7a) of the extension top plate (7) and the clamping piece ( 9c).

  Thereby, as shown in FIG. 2, the extended top plate (7) is attached to the corner portion (6) of the top plates (4) and (5) so as to partially cover the upper portion, and intersects at right angles. By expanding the corner portion (6), the portion can be used effectively as an article placement area or a work area.

  Further, since the work area of the corner portion (6) is expanded using the extended top plate (7), the work area is provided by integrally projecting the top plate extension portion on the side edge of the top plate itself as in the prior art. There is no need to expand the top plate (4) and (5) without using a complicated shape, so that the regular shape can be used, so that the production cost is reduced and the packaging and transportation are also easy. .

  On the lower surface of the upper piece (7a) of the extended top plate (7), there is a pair of mounting pieces (9) and (9) that are equiangular with the front ends of the corner portions (6) of the top plates (4) and (5). By fixing the contact piece (9b) to the left and right front ends (5a) and (4a) of both top plates (4) and (5), the mounting position of the expansion top plate (7) can be made very easily and Accurate positioning is possible.

  Further, the holding piece (9c) of the attachment piece (9) is provided with a long groove (10) that faces the attachment direction of the extension top plate (7) and opens rearward, so that the fixing screw (12) is attached. The expansion top plate (7) can be easily attached and detached by simply screwing it into the embedded nut (11) and loosening or tightening it.

  Furthermore, since the extension top plate (7) is firmly fixed to the embedded nut (11) on the lower surface of the both top plates (4) and (5) by the fixing screw (12), the top plate (4) (5 ) The connection strength between them also increases.

  FIG. 5 shows a modification of the fixing means for the expansion top plate (7). The mounting piece (9) is slightly thick to increase the bending rigidity, and the thickness of the top plates (4) and (5). A clamping piece (9c) is continuously provided at the lower end of the contact piece (9b) having a larger vertical dimension than the bottom surfaces of the top plates (4) and (5), and this clamping piece (9c ) To fix the expansion top plate (7) by screwing the fixing screw (12) into the screw hole (13) and pressing the upper end thereof against the lower surface of the top plate (4) (5). It is what you do.

  This eliminates the need for the embedded nut (11) for screwing the fixing screw (12), reduces the number of parts and the number of mounting steps, and requires the fixing screw (12) and the embedded nut (11) to be aligned. Therefore, even if a manufacturing error occurs in the extended top plate (7) or an error occurs in the mounting position of the mounting piece (9), the extended top plate (7) can be easily fixed.

The present invention is not limited to the above embodiment.
In the above embodiment, the top plates (4) and (5) are arranged so as to intersect at right angles, and the upper portion of the corner portion (6) is covered with the extended top plate (7) so as to form an angle of 45 °. However, if the angle is changed, the extended top plate (7) can be attached to the corner portion (6) while being biased in any direction of the top plates (4) and (5).

In this case, the attachment positions of both attachment pieces (9) may be changed in accordance with the attachment angle.
Moreover, in the said embodiment, the two top plates (4) and (5) are made to cross | intersect, and the expansion top plate (7) is attached to those corner parts (6), but V is attached to the front end of one top plate. A corner portion recessed in a letter shape may be formed, and an extension top plate (7) may be attached to the corner portion.

In the said embodiment, since the expansion top plate (7) is mounted on both top plates (4) and (5), a level | step difference is formed between those upper surfaces, but top plate (4) ( If a recess having a depth corresponding to the thickness of the extended top plate (7) is formed on the top surface of the portion on which the extended top plate (7) is placed in 5), the top surface of the top plate (4) (5) And the top surface of the auxiliary top plate can be aligned with the same surface.
The embedded nut (11) may be omitted, and a female screw may be provided directly on the lower surfaces of the top plates (4) and (5).

It is a front perspective view of one embodiment of a desk with an extended top plate of the present invention. Similarly, it is an enlarged plan view of the extended top plate mounting portion. Similarly, it is a top view of an extended top plate. It is the IV-IV line expansion vertical side view of FIG. It is a vertical side view of the same site | part as FIG. 2 which shows the modification of the fixing means of an expansion top plate.

Explanation of symbols

(1) Desk
(2) Main machine
(3) Auxiliary desk
(4) (5) Top plate
(4a) (5a) Front edge
(6) Corner part
(7) Extended top plate
(7a) Upper piece
(7b) Downward piece
(7c) Backward horizontal piece
(8) Rubber pad
(9) Mounting piece
(9a) Horizontal piece
(9b) Contact piece
(9c) Nipping piece
(10) Long groove
(11) Embedded nut (female thread)
(12) Fixing screw
(13) Female thread hole

Claims (7)

  An extension top plate formed by connecting a downward piece to the front edge of a thin plate-like upper piece at a corner portion formed in the front end of the top plate and recessed in a V shape in plan view toward the rear, The directional pieces are inclined to the left and right front ends of the top plate forming the corner portion, the left and right end portions of the downward piece are in contact with the left and right front ends, respectively, and the upper piece is A desk with an extended top plate that covers the top and is mounted so as to be placed on the top surface of the top plate.   By connecting a rear horizontal piece to the lower end of the downward piece, the front end of the extended top plate has a U-shaped cross-section in the side view, and both side ends are the left and right front ends of the corner portion of the top plate. The desk with an extension top plate of Claim 1 formed by fitting to a part.   The desk with an extended top plate according to claim 1 or 2, wherein the lower surface of the upper piece of the extended top plate is fixed to the lower surface of the top plate by a fixing means.   The fixing means is fixed to the lower surface of the upper piece, and a pair of left and right contact pieces that can come into contact with the left and right front ends of the corner portion of the top plate, and the top plate corner connected to the lower ends of both contact pieces. A mounting piece having an L-shaped cross section consisting of a clamping piece that contacts the lower surface of the front end of the unit, a fixing screw inserted through the clamping piece from below, and an upper end of the fixing screw are screwed together The desk with an extended top plate according to claim 3, wherein the desk includes an internal thread.   The desk with an extended top plate according to claim 4, wherein the angle formed by the pair of contact pieces and the left and right front ends of the corner portion of the top plate are equal in plan view.   The desk with an extended top plate according to claim 4 or 5, wherein the holding piece is provided with a long groove that opens rearward and through which a fixing screw screwed into a female screw on the lower surface of the top plate is slidably inserted. The fixing means is fixed to the lower surface of the extended top plate, and a pair of left and right contact pieces that can contact the left and right front ends of the corner portion of the top plate, and the top plate connected to the lower ends of both contact pieces. An L-shaped cross-section attachment piece comprising a clamping piece located below the front end of the corner portion, and a fixing screw that is screwed into the screw hole from below to form the clamping piece, and whose upper end is in contact with the lower surface of the top plate The desk with an extended top plate according to claim 3.

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