JPH063964B2 - duct - Google Patents

Description

Description: TECHNICAL FIELD OF THE INVENTION The present invention relates to a duct useful when retracting and laying a cable.

(Technical Background of the Invention and Problems Thereof) Conventionally, as an aluminum alloy cable duct, as shown in FIG. 6, an aluminum alloy angle (1) is formed by welding a skeleton (2). It is known that a plate body (3) made of an aluminum alloy is riveted to the three outer surfaces, and a plate body (4) made of an aluminum alloy is removably screwed to the surface on which the cable is drawn and laid.

By the way, in the duct having such a configuration, since the dimensional accuracy of the duct is determined by the dimensional accuracy of the frame body (2), welding of the angle (1) is an important work.

However, in the duct having such a structure, there is an end point which requires a long time for correction work such as distortion, warpage, or contraction of the angle (1) generated during welding. In particular, in order to adjust the dimensional error due to the strain or shrinkage of the angle (1), it is necessary to cut the aluminum alloy plate bodies (3) and (4) in conformity with the dimensions of the skeleton body (2). Work longer.

Also, since skill is required for welding aluminum,
A large number of welding experts are required for a large number of orders or short delivery items, and there is a problem that the cost increases.

In addition, (5) in the figure has shown the separator of the cable.

(Object of the Invention) The present invention has been made in view of such a point, does not require a special skill in its assembly work, and does not provide a duct that can be easily assembled and processed by anyone universally. It is what

(Outline of the Invention) That is, a duct according to the present invention comprises an L-shaped flat body and a vertically extending body having an L-shaped cross section that is connected downward to two long side portions of the flat body. L on the outer surface of this plane
-Shaped convex or concave groove is provided on each outer surface of the vertical body and extends linearly upward from the lower position to the intermediate position of the vertical body, and the linear convex or concave groove. And at least eight coupling members each having a linear convex or concave groove extending from the side edge of the suspended body between the flat body and the corner portion of the suspended body are formed at four corners of the quadrangle and A vertical member having an L-shaped cross section, which is arranged at each of four corners of a quadrangle separated by a predetermined length from this position, and has a groove or a convex shape in which these coupling members fit the convex shape or the concave groove on the inner surface. , Connected by lateral members and vertical members,
It is characterized in that the plate bodies are fastened to the four outer peripheral surfaces of the obtained cage-shaped tubular framework, respectively.

Embodiments of the Invention The present invention will be described below with reference to the drawings of one embodiment. First
In the figure, the duct according to the present invention is composed of a skeleton body (6) and a plate body (7) made of aluminum alloy, for example, riveted to the outer four surfaces thereof.

The skeleton body (6) is composed of a connecting member (8) and a vertical member (9), a horizontal member (10) and a vertical member (11) which connect these connecting members (8) in a cage shape. ing.

The coupling member (8), as shown in FIGS.
A flat body (8a) made of an L-shaped aluminum alloy or the like, and a vertically extending body (8c) having an L-shaped cross section that is connected downward to two long side portions (8b) of the flat body (8a). And an L-shaped convex shape (8d) on the outer surface of the flat body (8a) and a linear shape extending upward from the lower position to the intermediate position on each outer surface of the vertical body (8c). (8e) and the vertical body (8e) between the linear convex (8e) and the plane body (8a).
The linear convex shape (8f) extending from the side edge of (c) toward the corner portion of the vertical body (8c) and the coupling member (8) are formed.

On the other hand, as shown in FIG. 5, the vertical member (9) and the horizontal member (10) are made of aluminum alloy plates having an L-shaped cross section, and each inner surface thereof has the above-mentioned convex shape (8d). ) And (8
A straight groove (12) is formed to fit in (f). Both ends of the vertical member (9) and the horizontal member (10) have vertical members (9) as shown in FIGS. 1 and 2.
And both ends of the horizontal member (10) are inclined (45) so that the edges of the orthogonal portions of the vertical member (9) and the horizontal member (10) abut each other as shown in FIGS. 1 and 2.
Have been disconnected.

On the other hand, the vertical member (11) has the same shape as that of the vertical member (9) and the horizontal member (10) except that the end edges thereof are not cut obliquely, and is made of the same material. There is.

Next, a method of assembling the frame body (6) will be described.

First, two sets of four connecting members (8) are arranged at four corners of a quadrangle at a predetermined distance, and the vertical surface portions of these connecting members are vertically inserted (vertical members). 9)
Cover at one end. In this case, the convex shape (8
The concave grooves (12) of the vertical member (9) are fitted in d) and (8f). Next, in the same manner as described above, the lateral surface portion of the coupling member (8) is inserted from the lateral direction (1).
Cover with one end of 0). In this case, the vertical members (9) and the horizontal members (10) are arranged so that the respective end edges of the vertical members (9) and the horizontal members (10) contact each other at their orthogonal portions. Further, the convex grooves (8d) and (8f) of the connecting member (8) are provided with the respective concave grooves (1) of the lateral member (10).
2) shall be fitted.

Then, the vertical member (11) is vertically inserted into each suspended body (8c) of the two sets of connecting members (8) assembled in a square shape. Also in this case, each convex shape (8e) of the coupling member (8)
The concave grooves (12) of the vertical member (11) are fitted to the.

Then, the vertical surface portion, the horizontal surface portion, and the vertical surface portion of each coupling member (8) and the portion where each end portion of the vertical member (9), the horizontal member (10), and the vertical member (11) is overlapped are riveted ( 1
3) Fasten it by stopping it. This completes the framework (6) according to the invention.

In addition, riveting of the connecting member (8) and the vertical member (9), the horizontal member (10) and the vertical member (11), etc.
Each vertical member (9), horizontal member (10) and vertical member (1
A groove (14) is formed on the outer surface of 1) and a center groove (15) is formed in the central portion of the groove (14) if necessary.
Alternatively, it may be riveted as shown in FIG. In this case, there is an advantage that the head of the rivet (13) can be covered with the plate (7).

Then, the outer four faces of the obtained frame body (6) are covered with a plate body (7) made of an aluminum alloy, and the plate body (7) and the vertical member (11) are riveted or bolted. The duct according to the present invention is completed by fastening with.

In the above, since the convex member or the concave groove is formed in the connecting member (8) and the vertical member (9), the horizontal member (10) and the vertical member (11), the connecting portion of the connecting member and the vertical member, etc. This is because it is possible to easily secure the squareness and the squareness.
Further, the vertical member (9), the horizontal member (10) and the vertical member (11) have an L-shaped cross section, and concave grooves are formed on the respective inner surfaces, and these concave grooves are formed on the respective convex portions of the corresponding coupling member. They are fitted into each other in order to increase the connection strength to the coupling member. From this point of view, the connecting member is manufactured by aluminum die casting in order to ensure high precision dimensions.

In the above embodiment, the connecting member (8) has a convex shape, the vertical member (9), the horizontal member (10) and the vertical member (1).
Although the concave groove is formed in 1), the present invention is not limited to this, and the concave groove is formed in the coupling member (8), the vertical member (9) and the horizontal member (1).
0) and the vertical member (11) may have a convex shape.

(Effects of the Invention) As described above, in the present invention, a simple and highly accurate frame structure can be formed by connecting the connecting member to the vertical member, the horizontal member, and the vertical member. Therefore, according to the present invention, there is an advantage that a skilled operator for welding is not required, and various equipment such as a welding machine and auxiliary materials such as argon gas and a welding rod are also unnecessary. Further, since the vertical member, the horizontal member, and the vertical member can be commonly used as an extruded member, inventory management is easy and space saving can be achieved.

Further, as a result of being able to form the skeleton with high precision, it is not necessary to dimension the plate body such as aluminum alloy attached to the outside one by one as in the conventional case, and eventually, the loss of material is eliminated,
It also has the advantage of shortening the work time.

[Brief description of drawings]

FIG. 1 is a schematic explanatory view showing an assembly state of a duct according to the present invention, FIG. 2 is an enlarged explanatory view of a main part of FIG. 1, FIG. 3 is a plan view of a connecting member, and FIG. FIG. 5 is a side view of a member, FIG. 5 is a side view of a vertical member, a lateral member, and a vertical member, and FIG. 6 is a side view of a conventional duct. (6) ……………… Framework (7) ……………… Plate (8) ……………… Coupling member (9) ……………… Vertical member (10) ………… Horizontal member (11) Vertical member

Claims (1)

[Claims] 1. An L-shaped flat body, and a vertical body having an L-shaped cross section connected downwardly to two long side portions of the flat body, the L-shaped flat body being formed on the outer surface of the flat body. The convex or concave grooves of the linear convex or concave groove extending upward from the lower position to the intermediate position of the vertical body on each outer surface of the vertical structure and the linear convex or concave groove. At least eight connecting members each having a linear convex or concave groove extending from a side edge of the suspended body between the flat bodies toward a corner portion of the suspended body are four corners of the quadrangle and this. A vertical member having an L-shaped cross section, which is arranged at each of four corners of a quadrangle separated from the position by a predetermined length, and has a concave groove or a convex shape in which these connecting members fit with the convex shape or the concave groove on the inner surface; Outer four faces of a cage-shaped tubular framework obtained by connecting with a lateral member and a vertical member Duct, wherein a plate member is formed by fastening respectively.