JPH11178647A - Fitting structure of wiring duct of desk - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a wiring duct from deforming and peeling off from a top when a desk is lifted by holding the wiring duct with hands by improving the bearing strength of the wiring duct. SOLUTION: A desk 1 is composed by arranging a top 4 across a leg 2, which is a top supporting body, and a wing box 3 (3a and 3b), where a wiring duct 10 is fixed by screws 12 to a rear end of the top 4, and pins 13 having head projected on an underside of the wiring duct 10 are engaged with the leg 2 and potbelly holes 14 holed on an upper side of the wing box 3. Thereby, the wiring duct 10 is directly fixed to the top supporting body.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a structure for mounting a wiring duct on a desk.

[0002]

2. Description of the Related Art As disclosed, for example, in Japanese Utility Model Publication No. 63-18346, a rear end of a desk top plate has a U-shaped cross section for accommodating cords of electric equipment placed on the desk. It is known to provide wiring ducts. Usually, such a wiring duct has its front surface fixed to the rear end surface of the top plate with a set screw or the like.

[0003]

However, in a desk provided with a wiring duct as described above, the desk is often lifted by putting a hand on the lower end of the wiring duct when the desk is moved or transported. In such cases, the load on the entire desk is applied to the joint between the wiring duct and the top plate,
The wiring duct may be deformed or damaged.

For this reason, conventionally, the thickness of the wiring duct has been increased, a material having high strength has been used, and a large number of setscrews have been used as a fixing means for fixing the wiring duct to the top plate. However, there is a problem that the manufacturing cost is high.

[0005] In view of the above-mentioned problems of the prior art, the present invention increases the thickness of the wiring duct or uses an expensive material by increasing the supporting strength of the wiring duct. The wiring at the desk can be made strong enough to lift the desk by putting a hand on the wiring duct, and the workability of assembling the wiring duct can be improved, and the desk can be manufactured at low cost. An object of the present invention is to provide an installation structure of a duct.

[0006]

According to the present invention, the above-mentioned problem is solved as follows. (1) On a desk having a top plate mounted on a pair of left and right top plate supports, a wiring duct is fixed to a rear end of the top plate, and a lower end of the wiring duct is attached to a rear upper end of the top plate support. Stop.

(2) In the above item (1), a headed pin is protruded at one of the lower end of the wiring duct and the upper end of the top plate support, and the head of the headed pin is provided at the other end. A daruma hole is formed by connecting a long hole having a width narrow enough to allow the shaft of the headed pin to be inserted into the large diameter hole that can be fitted, and the headed pin is engaged with the long hole of the darma hole. By joining, the wiring duct is fixed to the upper end of the top plate support.

(3) In the above item (1) or (2), the direction of the long hole of the darma hole formed in the upper end of at least one of the top plate supports or the lower surface of the top plate opposed thereto is defined as the front-back direction. I do.

(4) In the above item (1) or (2), the direction of the long hole of the dharma hole formed in the upper end of at least one of the top plate supports or the lower surface of the top plate opposed thereto is defined as the horizontal direction. I do.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. The desk (1) includes a pair of legs (2), which are a pair of left and right top plate supports supported on the floor, and a sleeve box (3) having a plurality of drawers (not shown). This is a so-called single-sleeved desk having a structure in which 4) is installed.

A pair of front and rear brackets (5) (5) facing the inside of the desk (1) are attached to the upper ends of the legs (2). leg
Wiring ducts (1) to be described later
Step-shaped recesses (2a) and (3a) are formed so that 0) can be fitted.

An inward flange is provided on the inner periphery of the upper end of the sleeve box (3).
(3b) is formed, and the reinforcing plate extends from the rear end at the upper end of the sleeve box (3) to a required range including the recess (3a).
(6) is fixed by welding or the like.

At the center and the front of the lower surface of the top plate (4), reinforcing rods (8) which are long on the left and right and have a substantially U-shaped cross section.
(8) is fixed, and in front of the reinforcing rods (8) and (8),
The brackets (5) and (5) of the legs (2) and the inward flanges (3b) of the sleeve boxes (3) on the lower surfaces of the reinforcing rods (8) and (8), respectively, have set screws (9). It is fixed.

At the rear of both left and right ends of the top plate (4), a supporting portion (11a) is fitted to the side end of the wiring duct (10) to support the wiring duct (10). The piece (11) is fixed with a set screw (12).

The wiring duct (10) is a gutter-shaped member for accommodating a wiring cord such as a power cord and a connection cord of electric equipment mounted on the top plate (4), and is made of a saw board or a hard synthetic resin material. It is formed and fastened with a set screw (12) so that the front surface is in close contact with the rear end surface of the top plate (4). Note that the support piece (11) and the wiring duct (10) may be integrally formed.

The left and right ends of the wiring duct (10) are attached to the upper surfaces of the legs (2) and the sleeve box (3) by fastening means (7). The fastening means (7) includes three headed pins (13) protruding from the rear of the lower surface of the top plate (4), and legs corresponding thereto.
(2) and a Daruma hole (14) formed in the upper end surface of the sleeve box (3).

The headed pin (13) has a screw portion (13a) screwed into a prepared hole (not shown) formed in the lower surface of the top plate (4), and a shaft portion (13b) connected to the lower end thereof. ) And a large-diameter head (13c) connected to the lower end thereof.

The daruma hole (14) is provided at the head (13) of the headed pin (13).
Insert the head (13) of the headed pin (13) into the large-diameter hole (14a)
An elongated hole (14b) having a width smaller than the outer diameter of c) and wider than the outer diameter of the shaft portion (13b) is continuously provided.

At the rear upper end of the leg (2), one daruma hole (1
4), with its long hole (14b) facing inward, and two upper and lower daruma holes (14) (14) at the rear upper end of the sleeve box (3).
However, each is provided such that its long hole (14b) faces forward.

(15) is a wiring duct which removably covers the upper opening of the wiring duct (10).

Next, the procedure for assembling the desk will be described. First, the insertion parts (11a) of the support pieces (11) are fitted to both ends of the wiring duct (10) with the headed pins (13) screwed to the lower surface, and are appropriately screwed or bonded with an adhesive. Then, with the front surface of the wiring duct (10) being in close contact with the rear end surface of the top plate (4), the support pieces (11) are screwed to both end surfaces of the top plate (4) with set screws (12). .

Then, the front surface of the wiring duct (10) is
(4) The wiring duct (10) is integrated with the top plate (4) by screwing it to the rear end face with a set screw (12).

The unit (2) is turned upside down so that the lower surface of the unit is turned upside down, and the recess (2a) of the leg (2) is turned upside down.
And the brackets (5) (5) of the legs (2) are applied to the front surfaces of the reinforcing rods (8) (8) so that
The large-diameter hole (14a) of the round hole (14) is fitted to the headed pin (13).

Next, the brackets (5) and (5) are connected to the reinforcing rod (8).
By sliding the leg (2) toward the outside of the top plate (4) while sliding along the front surface of (8), the headed pin
The shaft (13b) of (13) is engaged with the deep end of the long hole (14b) of the daruma hole (14), and in this state, the brackets (5) and (5) are
(8) Screw on the front surface of (8) with set screws (9) (9).

The sleeve box (3) is also upside down.
The large diameter holes (14a) (14a) of the pair of daruma holes (14) and (14) are fitted to a pair of headed pins (13) and (13), and then the entire sleeve box (3) is moved backward. After the parallel movement, the wiring duct holder is completely fitted into the recess (3a), and the important points of the inward flange (3b) and the reinforcing rod (6) are moved to the reinforcing rod (8) of the top plate (4). ) And the lower surface of the top end of the top plate 4 with a set screw 9.

Finally, in the opening on the upper surface of the wiring duct (10),
Attach the wiring cover (15). When moving the desk (1) assembled in this way, put a hand on the wiring duct (10)
(1) Even if lifted, the head (13c) of the headed pin (13)
Engage with the long hole (14b) of the gull hole (14) and connect the wiring duct (10)
Is prevented from being vertically separated from the legs (2) and the sleeve box (3), so that the wiring duct (10) hardly peels off from the top plate (4).

[0027]

According to the first aspect of the present invention, since the wiring duct is directly fixed not only to the top plate but also to the top plate support, the supporting strength of the wiring duct is increased, and the thickness of the wiring duct is increased. Without increasing the thickness or using expensive materials,
When the desk is lifted with a hand on the wiring duct, sufficient strength can be obtained so that the rear end of the wiring duct or the top plate is not deformed or damaged.

According to the second aspect of the present invention, the work of assembling the wiring duct to the desk can be simplified by engaging the headed pin with the darling hole and fixing the wiring duct to the top plate support. It can be manufactured at low cost.

According to the third and fourth aspects, the direction of the long hole of the daruma hole is set in the front-rear direction or the left-right direction in accordance with the state of assembling the top support to the top plate. The assembling workability can be improved.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a desk provided with an embodiment of the present invention as viewed from the rear.

FIG. 2 is a rear perspective view of an assembled state.

[Explanation of symbols]

 (1) Desk (2) Leg (top support) (2a) Recess (3) Sleeve box (top support) (3a) Recess (3b) Inward flange (4) Top (5) Bracket (6) Reinforcement plate (7) Fastening means (8) Reinforcing rod (9) Set screw (10) Wiring duct (11) Support piece (11a) Insertion part (12) Set screw (13) Headed pin (13a) Screw (13b) Shaft (13c) Head (14) Daruma hole (14a) Large diameter hole (14b) Long hole (15) Wiring cover

Claims (4)

[Claims] 1. A desk having a top plate provided on a pair of left and right top plate supports, wherein a wiring duct is fixed to a rear end of the top plate, and a lower end of the wiring duct is connected to a rear portion of the top plate support. A mounting structure for a wiring duct on a desk, which is fixed to an upper end. 2. A headed pin is protruded at one of a lower end of a wiring duct and an upper end of a top plate support, and a large-diameter hole into which a head of the headed pin can be fitted. By piercing a darma hole formed by connecting long holes having a narrow width such that the shaft of the headed pin can be inserted, and engaging the headed pin with the long hole of the daruma hole, the wiring duct is formed. The mounting structure of a wiring duct in a desk according to claim 1, wherein the wiring duct is fixed to an upper end of the top plate support. 3. The wiring duct for a desk according to claim 1, wherein the direction of the long hole of the darma hole formed in the upper end of at least one of the top plate supports or the lower surface of the top plate opposed thereto is the front-back direction. Mounting structure. 4. The wiring duct in a desk according to claim 1, wherein the direction of the long hole of the darma hole formed in the upper end of at least one of the top plate supports or the lower surface of the top plate opposed thereto is the left-right direction. Mounting structure.