JPH0687617B2 - duct - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Field of Industrial Application) The present invention relates to a duct useful when a cable is drawn and installed.

(Prior Art) Conventionally, as a cable duct made of an aluminum alloy, as shown in FIG. 6, a plate made of an aluminum alloy is formed on three outer surfaces of a skeleton body 2 formed by welding an angle 1 made of the aluminum alloy. It is known that 3 is riveted, and a plate body 4 made of an aluminum alloy is detachably screwed to the surface on which the cable is pulled in and installed.

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 skeleton body 2, welding of the angle 1 is an important work.

(Problems to be Solved by the Invention) However, in the duct having such a configuration, there is a problem that it takes a long time to correct the distortion, warpage, shrinkage, or the like of the angle 1 that occurs 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 plates 3 and 4 in conformity with the dimensions of the skeleton 2, so that the work takes a long time. was there.

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
Indicates a cable separator.

Therefore, the present invention has been made in order to solve the conventional problems as described above, and does not require special skill for assembling work.
A general purpose is to provide a duct that can be easily assembled and processed by any number of people.

[Structure of the Invention] (Means for Solving the Problems) The duct of the present invention includes a polygonal small flat plate having a corner of approximately 90 degrees in a plan view, and two side portions sandwiching the corner of the small flat plate. Of the eight connecting members each having a rectangular-shaped vertically extending plate, two sets of four connecting members, one set of four connecting members, are provided at positions separated by a predetermined length from each of the small flat plates. The vertical plates are arranged so as to face each other, and the four coupling members forming the two sets are arranged so that the diagonal portions of the corners of the small flat plates face the four corner positions of the square. The two sets of coupling members are connected to each other by vertical plate pieces having an L-shaped cross section that are mounted so as to span the vertical plates of the opposing coupling members. The four connecting members to be configured are a vertical plate piece and a horizontal plate having an L-shaped cross section that are mounted so as to straddle between the small flat plates of the adjacent connecting members. A duct which is respectively fastened by a piece, and plate bodies are fastened respectively to the outer four surfaces of a cage-shaped tubular framework obtained by this,
On the outer surface of the small flat plate of each of the coupling members, 2
A ridge or a groove is formed parallel to these side portions at positions separated from each other by a predetermined length, and the vertical plate is formed on the outer surface of the lower portion of each vertical plate of each coupling member. A ridge or groove is formed in parallel with this side portion at a position separated from the one side portion by a predetermined length.
On the inner surface of each of the horizontal plate piece and the vertical plate piece, a groove or a ridge that fits with the convex groove or the concave groove is formed on each vertical plate piece,
It is formed in parallel with the sides of the horizontal plate piece and the vertical plate piece, respectively, and the concave groove or the convex line of each of these vertical plate pieces and the horizontal plate piece is the convex line or the concave groove of the small flat plate of the coupling member. It is characterized in that the concave groove or the convex shape of the vertical plate piece that is fitted is fitted in the convex line or the concave groove of the vertical plate of the coupling member, respectively.

(Example) Hereinafter, one example of the present invention will be described with reference to the 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. 4 is a side surface of the connecting member. FIG. 5 is a side view of a vertical plate piece, a horizontal plate piece, and a vertical plate piece.

In FIG. 1, the duct according to the present invention is composed of a skeleton body 6 and a plate body 7 made of, for example, an aluminum alloy plate, which is riveted to the outer four surfaces thereof.

The skeleton body 6 includes a connecting member 8 and a vertical plate piece 9, a horizontal plate piece 10 and a vertical plate piece 11 that connect the connecting members 8 in a cage shape.
It consists of and.

As shown in FIGS. 2 to 4, the coupling member 8 is directed downward to a small flat plate 8a made of an aluminum alloy plate or the like having a substantially square shape in plan view, and two side portions of the small flat plate 8a which will be described later. It is composed of a vertically extending vertical plate 8c. Code 8f
Shows a corner portion of approximately 90 degrees in a plan view, and a diagonal portion 8g of this corner portion 8f is partially cut off as shown in the figure. Then, the above-mentioned rectangular-shaped vertical plates 8c and 8c are respectively connected to the two side portions 8b and 8b sandwiching the corner portion 8f having a plane angle of approximately 90 degrees. Reference numerals 8d and 8d denote ridges formed on the outer surface of the small flat plate 8a at positions separated from the two side parts 8b and 8b of the small flat plate 8a by a predetermined length in parallel with these side parts 8b and 8b, respectively. Shows. Similarly, on the outer surface of the lower portion of each of the vertical plates 8c, 8c, a ridge 8e parallel to the side portions 8h, 8h at a position separated from the one side portion 8h, 8h of the vertical plate by a predetermined length. 8e are formed respectively.

On the other hand, the vertical plate piece 9 and the horizontal plate piece 10 are made of a plate body such as an aluminum alloy plate having an L-shaped cross section as shown in FIG. Is the above-mentioned ridge
Recessed grooves 12 that fit with 8d are formed parallel to one side portion 12a of the vertical plate piece 9 (horizontal plate piece 10). It should be noted that, as shown in FIGS. 1 and 2, the ends of the vertical plate piece 9 and the horizontal plate piece 10 are in contact with each other at their ends, as shown in FIGS. 1 and 2. It is cut diagonally (approximately 45 degrees) like this.

The vertical plate piece 11 has the same shape as the vertical plate piece 9 and the horizontal plate piece 10 except that the edge portion is not obliquely cut, and is made of the same material.

In the above description, the small flat plate 8a and the vertical plate 8c of the connecting member 8 and the vertical plate piece 9, the horizontal plate piece 10 and the vertical plate piece 11 are formed with a convex shape or a concave groove as described later. This is because it is possible to easily secure the squareness and the straightness of the connecting portion between the vertical plate piece 9 and the like. From this point of view, it is desirable that the joining member 8 be manufactured by aluminum die casting in order to ensure high precision dimensions. In addition, in the above-mentioned embodiment, the small plate 8a of the coupling member 8 and the vertical plate 8c are provided with a convex shape,
Grooves are formed on the horizontal plate piece 10 and the vertical plate piece 11 side,
The present invention is not limited to this, and a concave groove may be formed on the small flat plate 8a and the vertical plate 8c side of the coupling member 8 and a convex shape may be formed on the vertical plate piece 9, the horizontal plate piece 10 and the vertical plate piece 11 side. Good.

Next, a method of assembling the skeleton body 6 will be described. First, of the eight connecting members, two sets of four connecting members are set so that the vertical plates 8c face each other at positions separated by a predetermined length as shown in FIG. And each of the four coupling members constituting the two sets are arranged so that the diagonal portions 8g of the corner portions of each small flat plate 8a face each other at the four corner positions of the quadrangle on each side. To do. Then, on each side, a vertical plate piece 9 and a horizontal plate piece 10 having a predetermined size are mounted so as to straddle between the small flat plates 8a of the adjoining coupling members 8 which are spaced apart at the four corners of the quadrangle. 4 as shown in FIG.
The rectangular frames Wa and Wb are respectively formed. In this case, the vertical plate piece 9 (horizontal plate piece 10) is fitted onto the small flat plate 8a from above, or is inserted from the lateral direction, or the like.
The recessed grooves 12 of the vertical plate piece 9 (horizontal plate piece 10) are fitted to the vertical plate piece 9 and the end edges of the vertical plate piece 9 and the horizontal plate piece 10, respectively, as shown in FIGS. It should be arranged so that it abuts at the orthogonal portion.

Next, two sets of quadrangular frame bodies Wa obtained as described above,
A vertical plate piece 11 having a predetermined size is mounted between Wb, that is, across the opposing vertical plates 8c of the coupling member 8 to form a cage-shaped tubular frame body 6 as shown in FIG. Form. In this case, similarly to the above, by the method of fitting the vertical plate piece 11 from above the vertical plate 8c or inserting it from the lateral direction, the concave groove 12 of the vertical plate piece 11 is formed in the convex shape 8e of the vertical plate 8c. Shall be fitted together.

Reference numeral 13 indicates a portion where the small flat plate 8a of the connecting member 8 and the end of the vertical plate piece 9 (horizontal plate piece 10) overlap with each other and the vertical plate 8c of the connecting member 8.
And a rivet that fastens the overlapping portion between the end of the vertical plate piece 11 and
Reference numeral 14 denotes a groove formed on the outer surfaces of the vertical plate piece 9, the horizontal plate piece 10, and the vertical plate piece 11, and 15 denotes a center groove 15 formed at the center of the groove 14. When the groove 14 and / or the center groove 15 is formed on the outer surface of each vertical plate piece 9, the horizontal plate piece 10, and the vertical plate piece 11, and the rivet 13 is riveted to the groove 14 or the center groove 15, There is an advantage that the head can be hidden by the plate 7.

As shown in FIG. 1, on the four outer surfaces of the skeleton body 6 obtained as described above, plate bodies 7 such as four aluminum alloy plates are straddled between the vertical plate pieces 11 constituting the skeleton body 6. And then cover each one,
The duct according to the present invention is completed by fastening the edge portion of each plate body 7 and the overlapping portion of the vertical plate piece 11 with rivets or bolts.

[Effects of the Invention] As apparent from the above description, in the present invention,
By connecting the connecting member to the vertical plate pieces, the horizontal plate pieces, and the vertical plate pieces, a simple and highly accurate frame structure can be formed. Therefore,
The present invention has an advantage that a skilled worker for welding is not required, and that 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 plate piece, the horizontal plate piece, and the vertical plate piece can be commonly used as the extruded members having the same shape, 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 bodies such as the aluminum alloy attached to the outside one by one as in the conventional case, which in turn can reduce material loss and work time. It has the advantage that it can be shortened.

[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. 4 is a connecting member. A side view, FIG. 5 is a side view of a vertical plate piece, a horizontal plate piece, and a vertical plate piece, and FIG. 6 is a side view of a conventional duct. 6 ... Frame 7 ... Plate 8 ... Coupling member 8a ... Small flat plate 8c ... Standing plate 11 ... Vertical plate piece 8 ... Coupling member 9 ... Vertical plate piece 10 ... Horizontal plate piece 11 ...... Vertical plate pieces

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) Bibliographic references Sho 53-82415 (JP, U) Actual breaks 54-92626 (JP, U)

Claims (1)

[Claims] 1. A polygonal small flat plate having a corner portion of approximately 90 degrees in a plan view, and a square-shaped vertical plate vertically arranged on two side portions sandwiching the corner portion of the small flat plate. Of the individual coupling members, two sets of four coupling members are arranged so that the vertical plates of the small flat plates face each other at positions separated by a predetermined length. The four respective connecting members constituting the above are arranged so that the diagonal portions of the corners of the respective small flat plates face each other at the four corner positions of the quadrangle, and between the two sets of connecting members, The four connecting members, which are connected to each other by the vertical plate pieces having an L-shaped cross section and which are laid across the vertical plates of the facing connecting members, are the small flat plates of the adjacent connecting members. They are connected by vertical plate pieces and horizontal plate pieces having an L-shaped cross section that are mounted so as to straddle between them. It is a duct in which plate bodies are respectively connected to the outer four surfaces of a cage-shaped tubular frame structure, and the outer surface of the small flat plate of each of the coupling members has a predetermined length from two sides of the small flat plate. A ridge or a groove is formed at a position separated from each other in parallel with these side portions, and the outer surface of the lower portion of each vertically extending plate of each coupling member has a predetermined distance from one side of the vertically extending plate. A ridge or a groove is formed at a long distance in parallel with the side portion, and the inner surface of each of the vertical plate piece, the horizontal plate piece, and the vertical plate piece is fitted with the ridge or groove. Grooves or ridges are formed parallel to the sides of these vertical plate pieces, horizontal plate pieces, and vertical plate pieces, respectively, and the groove or ridge of each of these vertical plate pieces and horizontal plate pieces is The small plate of the coupling member is fitted into a convex strip or a concave groove, and the vertical plate has a concave groove or a convex shape. A duct characterized in that it is fitted in a convex line or a concave groove of a vertical plate of a connecting member.