JPH0426017Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a duct installation device for installing a duct for storing cords or for use as a curtain plate between the left and right legs of a desk.

[Conventional technology and its problems]

In office desks, a duct is fixed between the left and right legs in order to store and place cords for telephones and other electrical devices used on the desk, and the duct is generally installed in the following manner: As disclosed in Japanese Utility Model Application No. 58-112125, the left and right side plates of the duct are directly screwed to the inner surfaces of the left and right legs.

However, with this installation method, when installing the duct, the operator must maintain the height and front-to-back position of the duct while screwing in the screws, which makes positioning the duct difficult and requires a lot of effort. Moreover, the ducts tend to slip down along the inner surfaces of the legs, making it easy for installation failures to occur.

The present invention aims to solve these problems and also to improve the mounting strength of the duct.

[Means for solving problems]

In order to achieve this purpose, the present invention has a box-shaped duct with either the front or rear open between the left and right legs that support the top plate, and the outer surfaces of the left and right side plates are attached to the inner surfaces of the legs. In a desk that is horizontally arranged in close contact with each other, a clamping plate formed in a Z-shape in a plan view and extending along the inner surface of the side plate of the duct is provided on the inner surface of the left and right legs. The lower end of the upper surface plate of the duct is in contact with the upper end surface of the duct, and the holding plate and the side plate of the duct are integrally screwed to the leg body.

[Functions and effects of the idea]

In this configuration, to install the duct, first fix the clamping plate to a predetermined position on the inner surface of the leg, and then insert the side plate of the duct from the front and back horizontal directions into the gap between the clamping plate and the leg. The clamping plate, the side plate of the duct, and the leg body may be integrally fastened together by inserting the duct and then screwing in a screw from the inside of the duct.

In that case, since the top plate of the duct is configured to come into contact with the top surface of the clamping plate, when the side plate of the duct is inserted between the clamping plate and the legs, the duct can be moved without the operator having to support it. The duct is held at a predetermined height so that it cannot fall, and the positioning can be performed quickly and the duct can be reliably prevented from slipping off during installation.

Therefore, the present invention allows the duct to be positioned quickly and to maintain the duct in such a positioned state so that it cannot fall, thereby improving the efficiency of the duct installation work and reducing the rate of defective installations at the same time. In addition, the side plate of the duct is held between the clamping plate and the leg, and the side plate of the duct is pressed against the inner side of the leg over a wide area, compared to the conventional case where it is directly screwed. , it also has the effect of improving the mounting strength even if the number of screws is the same.

〔Example〕

Next, an embodiment of the present invention will be described based on the drawings. In the drawings, reference numeral 1 denotes an office desk consisting of a top plate 3 supported by a pair of left and right legs 2, and a A box-shaped duct with a front opening and a cover body 5 with a rear opening are respectively disposed horizontally, while a blind panel 6 is erected on the back side of the top plate 3.

The left and right legs 2 are hollow and have a rectangular cross section, and a horizontal support rod 7 is fixed to the lower end thereof, and a vertical groove 8 is formed on the inner surface thereof over the entire length of the leg 2. A pair of upper and lower clamping plates 9 formed by bending a metal plate into a Z-shape in plan view are provided at the mid-height position of the inner bottom surface of this vertical groove 8 (that is, the inner surface of the outer plate 2a of the leg body 2). , its tip bent piece 9
a is arranged so as to extend backward along the inner surface of the leg body 2 (that is, the outer surface of the rear inner plate 2b of the leg body 2), and its base end is fixed by an appropriate means such as spot welding. There is. At this time, the tip bent piece 9a of the clamping plate 9 and the rear inner plate 2b of the leg body 2
A gap with the same interval as the plate thickness of the duct 4 is formed between the duct 4 and the outer surface.

On the other hand, the duct 4 is made by bending a metal plate into a substantially C-shape when viewed from the side, and integrally connects side plates 4a to both left and right ends of the duct 4 so as to surround the inside of the duct 4. A letter-shaped shelf 10 is fixed, and its left and right side plates 4a are inserted between the bent end piece 9a of the clamping plate 9 and the leg body 2, and the bent end piece 9a of the clamping plate 9 is connected to the duct 4. The side plate 4a of the left and right legs 2 and the rear inner side plate 2b of the legs 2 are fixed to the left and right legs 2 by integrally fastening them with screws 11.

At this time, in the attached state of the duct 4, the lower end of the downwardly bent piece of the upper surface plate 4a of the duct 4 is in contact with the upper surface of the tip bent piece 9a of the upper holding plate 9. In other words, the holding plate 9
The mounting height position of the upper holding plate 9 is set so that the duct 4 is supported by the tip bent piece 9a. In the embodiment, the lower surface of the tip bent piece 9a of the lower clamping plate 9 is connected to the lower surface plate 4c of the duct 4.
Although it is placed close to the top end, it is also possible to leave a certain gap.

In addition, the upper and lower corners of the tip bent piece 9a of the holding plate 9 are chamfered 13 to facilitate insertion of the side plate 4a of the duct 4, but in addition to this chamfer 13, or without chamfering 13. As shown in FIG. 6, the tip bent piece 9a
The tip may be bent toward the inside of the duct 4.

Note that the left and right side plates 5a of the cover body 5 are cut out and formed with engagement grooves 14 that are L-shaped in side view and open rearward. (outer surface of front inner plate 2c of body 2)
The cover 5 can be attached to and detached from the left and right legs 2 by falling into a locking pin 15 that projects laterally. This cover body 5 may be directly attached to and detached from the duct 4.

In the above configuration, in order to attach the duct 4 between the left and right legs 2, the clamping plate 9 is fixed to the legs 2 in advance, and then the gap between the tip bent piece 9a of the clamping plate 9 and the inner surface of the side plate 2 is Insert the side plate 4a of the duct 4 from behind, then screw in the screw 11 from the inside of the duct 4 to secure the bent end piece 9a of the clamping plate 9.
and the side plate 4a of the duct 4 and the rear inner plate 2a of the leg 2.
The duct 4 is supported at a predetermined height position by the clamping plate 9.
The effort required to position the duct 4 and maintain its height position is reduced, and the installation work can be carried out quickly and reliably.

By attaching and detaching the cover 5, cords and various instruments can be stored and mounted inside the duct 4.

In this case, as in the embodiment, the side plate 4 of the duct 4
a The tip a is brought into contact with the stepped portion of the clamping plate 9, or
When the bent end piece 9a of the clamping plate 9 is brought into contact with the back plate 4d of the duct 4, the duct 4 is positioned not only in height but also in its front and back positions by the clamping plate 9, making the installation work even easier. This can be done quickly and reliably.

A leg cover 16 having a U-shaped cross section is removably attached to a portion of the vertical groove 8 of the leg body 2 below the duct 4, and a cap 17 is provided at the lower end thereof. The cord can be inserted into and taken out from the leg body 2 through the cord insertion hole 18. In this case, the cap 17 has an inverted U-shaped frame 17a attached to the cord insertion hole 18.
and a lid body 1 attached to the frame body 17a so as to be vertically movable.
7b, so that the cord insertion hole 18 can be opened with the leg cover 16 attached.In other words, the cord insertion hole 18 can be opened with the leg cover 16 attached to the leg 2. This allows the leg cover 16 to be easily removed.

In the above embodiments, the duct was attached to a leg body with a vertical groove, but the present invention is applicable to a case where a duct is attached to a leg body that is simply a hollow plate as shown in FIG. Needless to say, the same method can be applied to the case where a duct is attached to a leg body. Furthermore, instead of providing two upper and lower clamping plates, only one vertically long clamping plate may be provided.Furthermore, the present invention can be used not only for cord processing ducts, but also for reinforcing ducts, etc. Needless to say, it can also be used as a mounting device for a duct used as a curtain plate.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a partially cutaway perspective view of a desk, FIG. 2 is a sectional view taken from the side of FIG. The figure is a perspective view showing how the duct is installed.
FIG. 6 is a sectional view showing another embodiment, and FIG. 7 is a sectional view showing still another embodiment. 1...Desk, 2...Legs, 3...Top plate, 4...Duct, 4a...Duct side plate, 5...Cover body,
8... Vertical groove, 9... Holding plate, 9a... Bent end piece of holding plate, 11... Screw.

Claims (1)

[Scope of utility model registration request] A box-shaped duct with either the front or rear side open is horizontally arranged between the left and right legs that support the top plate, with the outer surfaces of the left and right side plates being in close contact with the inner surfaces of the legs. In the desk, a clamping plate formed in a substantially Z-shape in plan view so as to extend along the inner surface of the side plate of the duct is formed on the inner surface of the left and right legs, and a lower end of the upper plate of the duct is attached to the upper end surface of the clamping plate. A duct mounting device for a desk, characterized in that the clamping plate and the side plate of the duct are integrally screwed to the leg body so as to be in contact with each other.