JP3100719B2 - Connection structure and connection method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a member made of a pipe material, for binding structure and binding method for binding a member having a cylindrical portion or rod portion.

[0002]

2. Description of the Related Art Conventionally, when a tubular or rod-shaped member is joined to a member such as a pipe material, both members are usually welded.

[0003]

However, in the case of joining by welding, (a) the working time becomes longer,
(B) The cost of welding is high. (C) Even if both members are plated, the plating layer is destroyed by welding, so after welding, plating is required again to prevent rust. However, this also increases the cost, and there is a problem that rust is generated from the welded portion in a use situation where plating cannot be performed again.

[0004] The present invention has been made in view of such circumstances, the first member made of a pipe material, quick easy without relying second member having a cylindrical portion or rod portion in welding It is an object of the present invention to provide a coupling structure and a coupling method that can be coupled and the operation cost can be very low.

[0005]

According to the present invention, there is provided a connecting structure comprising: (i) a first member made of a pipe material having a hole in a side surface ; and (ii) a sandwiching portion opposed to each other at a distance. An intermediate portion provided between the one end sides of these sandwiching portions, a covering portion having a convex portion protruding on the inner surface side of the sandwiching portion, and being coupled to the intermediate portion of the covering portion, A second member having a cylindrical portion or a rod portion having a portion protruding from the intermediate portion toward the sandwiching portion; and (iii) a tip of the cylindrical portion or the rod portion is hole
And the cylindrical portion or the bar-shaped portion is inserted into the first member, the cylindrical portion or the bar-shaped portion is fitted into the hole, and the first member is disposed between the sandwiched portions. The convex portion is inserted while expanding the space between the first member and the convex portion is pressed against the side surface of the first member from both sides by the elasticity of the covering portion, and the intermediate portion is brought into contact with the first member. The covering portion is covered by the first member.

[0006] Further, the bonding method according to the present invention is characterized in that the (i) side
A first member made of pipe material provided with a hole in the surface ,
(Ii) a covering portion including a sandwiching portion facing each other at an interval, an intermediate portion provided between one ends of the sandwiching portions, and a convex portion protruding from the inner surface side of the sandwiching portion. A second member coupled to the intermediate portion of the covering portion and having a cylindrical portion or a rod-shaped portion having a portion protruding from the intermediate portion toward the holding portion, (Iii) before
The tip of the cylindrical portion or the rod-shaped portion extends from the hole to the first portion.
The cylindrical part or the rod-shaped part is inserted into the material, and the first member is inserted between the sandwiched parts while expanding the interval between the sandwiched parts, and the convex part is inserted between the sandwiched parts. Covering the cover with the first member such that the elasticity of the cover is pressed against the side surface of the first member from both sides and the intermediate portion is in contact with the first member. Thereby, the first member and the second member are connected.

[0007]

In the present invention, since the cylindrical portion or the rod-like portion is fitted in the hole, basically, the second member moves in the direction deviating from the position of the hole with respect to the first member. It doesn't move. Further, since the convex portion strongly sandwiches the first member from both sides, the second member does not move in the direction in which the cylindrical portion comes out of the hole with respect to the first member. Further, since the convex portion strongly sandwiches the first member from both sides and the intermediate portion is in contact with the first member, the second member is a cylindrical member or a first member. There is no swinging (swinging) about the fitting portion between the rod portion and the hole. Therefore, the first member and the second member are firmly fixed to each other.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the embodiments shown in the drawings.

FIGS. 1 to 6 show a first embodiment of the present invention. As shown in FIGS. 5 and 6, in the present embodiment, the first member 1 is a square pipe member made of a metal material such as steel, and one surface 1a of the first member 1 has a circular shape. Hole 2 is penetrated.

FIGS. 1 to 4 show a second member 3 in this embodiment. The second member 3 has a cover portion 4 and a cylindrical portion 5. The covering portion 4 is made of an elastic metal material such as steel, and has a surface 4a and surfaces 4b and 4c which are bent at right angles from both ends of the surface 4a, thereby forming a substantially U-shaped cross section. Faces 4b, 4
The interval between c is substantially equal to the width of the surface 1a of the first member 1. Here, in the present embodiment, the surfaces 4b and 4
c is a sandwiching portion in the present invention, and the surface 4a is an intermediate portion. A circular caulking hole 6 is provided at the center of the surface 4a at the center of the covering portion 4, and the periphery of the caulking hole 6 is slightly raised outward from other portions of the surface 4a. On each of the surfaces 4b and 4c on both sides of the covering portion 4, two convex portions 7 are formed by press working so as to protrude inward.

The cylindrical portion 5 is made of a metal material such as steel, and has a cylindrical shape with a reduced diameter at one end 5a, and the other end (tip) 5b has a surface 4b of the covering portion 4. , 4c are inserted through the caulking hole 6.
The portions 8, 9 on both sides of the caulking hole 6 in the peripheral wall of the cylindrical portion 5 are plastically deformed so as to be folded in a U-shaped vertical section and spread outward over the entire circumference. The plastically deformed portions 8 and 9 crimp the peripheral portion of the caulking hole 6 of the covering portion 4 from both sides, whereby the covering portion 4 and the cylindrical portion 5 are fixed to each other. Here, the cylindrical portion 5 extends in a direction perpendicular to the center surface 4a of the covering portion 4. Further, a female screw portion 10 is provided on the inner peripheral side of a portion where the diameter of the end portion 5a of the cylindrical portion 5 is reduced.

[0012] To join the first member 1 and the second member 3, as shown in FIGS. 5 and 6, the distal end of the tubular portion 5
The cylindrical portion 5 is inserted into the first member 1 through the hole 2.
End 5b side is fitted in hole 2 and surfaces 4b, 4
The first member 1 between c is so as to be inserted while widening the spacing between said surface 4b, 4c, covered with covering part 4 on the first member 1, the surface 4 a of the first member 1 It is only necessary to push the second member 3 relative to the first member 1 until it comes into contact with the surface 1a. In this case, the convex portions 7 are elastically deformed by the covering portion 4 so that the surfaces 1a on both sides of the surface 1a
b, 1c.

Here, since the cylindrical portion 5 is fitted in the hole 2, basically, the direction in which the second member 3 is displaced from the position of the hole 2 with respect to the first member 1 ( (In the radial direction of the hole 2). Further, since the convex portion 7 strongly sandwiches the first member 1 from both sides, the second member 3 moves in the direction in which the cylindrical portion 5 comes out of the hole 2 with respect to the first member 1. Not even. In addition, since the convex portion 7 strongly sandwiches the first member 1 from both sides and the surface 4c is in contact with the first member 1, the second member 3 is There is no swing (swing) around the fitting portion between the cylindrical portion 5 and the hole 2. Thus, the first member 1 and second member 3 are firmly fixed to each other.

The connection structure shown in FIGS. 5 and 6 can be used, for example, as a support structure for a bathtub or a floor panel as follows. That is, the male screw member 11 erected rotatably on the base floor (not shown) such as concrete of a building is screwed into the female screw portion 10 of the tubular portion 5 and the first member 1
Install a bathtub or floor panel on top. By rotating the male screw member 11, the first member 1 and the second member 3
Can be moved up and down to adjust the height.

In the above embodiment, the second member 3 is connected below the first member 1, but in the present invention, the connecting direction of the second member 3 to the first member 1 is It can be in any direction.

7 to 9 show another embodiment of the present invention.
As shown in FIG. 9, in the present embodiment, the first member 21 is a round pipe made of a metal material such as steel, and a circular hole 22 is penetrated in the first member 21. .

FIGS. 7 and 8 show the second member 23 in this embodiment. The second member 23 includes a cover 24
And a cylindrical portion 5. The covering part 24
Is made of an elastic metal material such as steel, and has a generally U-shaped cross section with a semicircular bottom. Here, in the present embodiment, the portions 24a and 24b on both sides of the U-shaped portion formed by the covering portion 24 are sandwiched portions, and the U-shaped bottom portion 2
4c constitute intermediate portions, respectively, and sandwich portions 24a,
The interval between 24b is substantially the same as the outer diameter of the first member 21. A circular caulking hole 25 is provided at the center of the covering portion 24, and the periphery of the caulking hole 25 is slightly raised outwardly compared to other portions. Each of the sandwiching portions 24a and 24b of the covering portion 24 is formed by press working so that two convex portions 26 each project inward.

The tubular portion 5 is the same as that of the above embodiment, and is fixed to the covering portion 24 in the same manner as in the above embodiment.

As shown in FIG. 9, also in this embodiment, the first member 21 and the second member 23 can be connected in the same manner as in the previous embodiment .

Further, the method of joining the cover portion and the cylindrical portion in the second member of the present invention is not limited to the method of each of the above-described embodiments, and the two may be joined by another method including welding. They may be combined.

In the present invention, the second member includes:
Instead of the cylindrical portion, a solid rod portion may be provided, or a male screw portion may be provided on the rod portion.

Further, in each of the above embodiments, the first member and the second member are made of metal. However, in the present invention, these members can be made of a material other than metal. is there.

[0023]

Coupling structure and binding method according to the present invention as described above, according to the present invention is only covered with a second member to the first member having a tubular portion or rod section, without depending on the welding both <br /> Can be quickly and firmly joined, and the working cost can be extremely reduced.

[Brief description of the drawings]

FIG. 1 is a front view showing a second member according to a first embodiment of the present invention.

FIG. 2 is a plan view showing the first embodiment.

FIG. 3 is a sectional view taken along line III-III in FIG.

FIG. 4 is a sectional view taken along line IV-IV in FIG.

FIG. 5 is a sectional view showing the first embodiment.

FIG. 6 is a sectional view of the first embodiment taken along a section perpendicular to FIG. 5;

FIG. 7 is a front view showing a second member according to the second embodiment of the present invention.

8 is a sectional view taken along line VII-VII in FIG.

FIG. 9 is a sectional view showing the second embodiment.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 1st member 2 hole 3 2nd member 4 Cover part 4a surface (intermediate part) 4b, 4c surface (sandwich part) 5 Cylindrical part 7 Convex part 21 First member 22 Hole 23 Second member 24 Cover parts 24a, in 24b sandwiching portion 24c between portion 26 protrusion

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) F16B ^7/ 00-9/02

Claims (2)

(57) [Claims] 1. A first member made of a pipe material having a hole in a side surface, a sandwiching portion opposed to each other at an interval, and one end side of these sandwiching portions. An intermediate portion, a covering portion having a convex portion protruding on the inner surface side of the holding portion, and a portion coupled to the intermediate portion of the covering portion and projecting from the intermediate portion toward the holding portion. And a second member having a cylindrical portion or a rod-shaped portion provided, and the tip of the cylindrical portion or the rod-shaped portion is provided with the first member from the hole.
The cylindrical part or the rod-shaped part is inserted into the member, the cylindrical part or the rod-shaped part is fitted into the hole, and the first member is inserted between the sandwiched parts while expanding the interval between the sandwiched parts, and the convex part is inserted. The side of the first member from both sides due to the elasticity of the covering portion
A coupling structure, wherein the covering portion is covered by the first member such that the intermediate portion is pressed against a surface and the intermediate portion is in contact with the first member. 2. A first member made of a pipe material provided with a hole in a side surface, a sandwiching portion facing each other at an interval, and a first member provided between one ends of these sandwiching portions. An intermediate portion, a covering portion having a convex portion protruding on the inner surface side of the holding portion, and a portion coupled to the intermediate portion of the covering portion and projecting from the intermediate portion toward the holding portion. And a second member having a cylindrical portion or a rod-shaped portion provided, and the tip of the cylindrical portion or the rod-shaped portion is provided with the first member from the hole.
When inserted into a member, the cylindrical portion or the rod-shaped portion is fitted into the hole, and the first member is inserted between the sandwiched portions while expanding the interval between the sandwiched portions, and the convex portion is inserted. The cover portion is pressed against the side surface of the first member from both sides by the elasticity of the cover portion, and the intermediate portion is brought into contact with the first member. A joining method comprising joining the first member and the second member by covering the member.