JPH11304061A - Flange member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To dispense with after-working such as surface grinding and reduce the cost by forming a flange member fixed to the end part of a pipe material to connect the pipe material to a pipe material by layering and fixing a plurality of thin plates. SOLUTION: A flange member 10 is formed into a substantially rhombus by laminating and fixing of a plurality of thin plates 11, for example, three, 3.2 mm in thickness. Each thin plate 11 is prepared so as to form an outer form having a curved corner angle part 12 and a hole part 13 at once by punching by press. The thin plates 11 thus formed by pinching are layered, caulked and temporarily fixed by spot welding to form the required flange member 10. According to such a manufacturing method, the periphery of the surface part of the thin plate 11 and the periphery of the hole part 13 are never sagged, and the after working for removing the sagging can be dispensed with. Further, since the thin plates 11 are layered and brazed, the strength equal to a one consisting of a single plate can be provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flange member fixed to an end of a pipe, and more particularly to a flange member of a pipe used for a lubricating oil pipe, a cooling water pipe, an air pipe and the like in an automobile.

[0002]

2. Description of the Related Art FIGS. 3 and 4 show a conventional flange member. In the figure, 1 is a flange member, 2 is a tube material, 3 is a stay, and 4 is a terminal portion of the tube material.

[0003] The flange member 1 has a substantially rhombic shape and is made of, for example, a single plate member 5 having a thickness of 10 mm. The plate member 5 has a hole 6 and a radius 7 at a corner. Processing by pressing, forming by cutting, or forming by forging is performed. Then, the flange member 1 is fixed to one end of the pipe material 2 by brazing or the like, and an annular end portion 4 is formed at the other end by plastic working. The stay 3 in which the hole 8 is formed is fixed by brazing or the like,
Piping material 9 is formed.

[0004]

In the above-mentioned prior art flange member 1, the punching of the plate material 5 by a press requires a large output press because the thickness of one plate is as large as about 10 mm. When the outer shape of the flange member 1 and the hole 6 are punched, the periphery of the flange member 1 and the hole 6 are punched.
In many cases, post-processing such as surface grinding is required to make the surface of the flange member 1 planar, which causes an increase in cost.

[0005] Further, the plate 5 is formed by cutting,
In addition, those formed by forging require special equipment and tools, and have problems such as an increase in cost.

The present invention has been made to solve such a problem, and has as its object to provide a low-cost flange member that does not require post-processing.

[0007]

In order to solve the above-mentioned problems of the prior art, the flange member of the present invention is formed by laminating and fixing a plurality of thin plate materials.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of a flange member according to the present invention will be described below with reference to FIGS.

The flange member 10 has a substantially rhombic shape and is formed by laminating a plurality of, for example, three thin plates 11 having a thickness of, for example, 3.2 mm. That is, each sheet material 11 is formed by punching with a press an outer shape having a curved corner 12 and a hole 13 at once, and laminating a plurality of sheet materials 11 formed by punching. The flange member 10 is formed by caulking, spot welding, or the like, and integrally formed by tacking. As described above, a normal press can be used to punch the thin sheet material 11 having a small thickness of, for example, 3.2 mm, and moreover, the three sheet materials 11 are laminated and fixed to 3.2 mm × 3 =
The thickness is 9.6 mm, and the flange member 10 having a thickness substantially equal to the thickness of 10 mm can be formed.

Since the thin sheet material 11 is punched by a press, a large force is not required for punching. Therefore, the peripheral edge of the surface of the thin sheet material 11 and the peripheral edge of the hole 13 do not fall off. No post-processing is required. Moreover, since the thin plate members 11 are laminated and brazed, there is no difference in strength from that of a single plate member.

The thus formed flange member 1
No. 0 is fixed to one end of the tube 2 by brazing or the like, and the annular end portion 4 is formed by plastic working on the other end, and then a stay 3 is fixed to a predetermined position of the tube 2 by brazing or the like. And piping material 1
4 are formed. In addition, all of these brazing are performed in a furnace.

[0012]

As described above, since the flange member according to the present invention is formed by laminating and fixing a plurality of thin plate members, there is no difference in strength from one thick plate member. In general, ordinary equipment and tools can be used for thin sheet processing, and processing is easy, so special equipment and post-processing are not required as in the case of a single thick sheet material. A flange member of the same strength can be provided.

[Brief description of the drawings]

FIG. 1 is a perspective view of a piping member using an embodiment of a flange member of the present invention.

FIG. 2 is a partial longitudinal sectional view of a flange portion of FIG.

FIG. 3 is a perspective view of a piping member using a conventional flange member.

FIG. 4 is a partial longitudinal sectional view of a flange portion of FIG. 3;

[Explanation of symbols]

 2 Tube material 3 Stay 4 Annular end 10 Flange member 11 Thin plate 12 Curved corner 13 Hole 14 Pipe

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[Procedure amendment]

[Submission date] June 29, 1998

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claims

[Correction method] Change

[Correction contents]

[Claims]

1. A flange member fixed to an end of a pipe material and connecting the pipe material to another member, wherein the flange member is formed by laminating and fixing a plurality of thin plate materials. ────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] April 26, 1999

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claims

[Correction method] Change

[Correction contents]

[Claims]

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0007

[Correction method] Change

[Correction contents]

[0007]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems of the prior art, a flange member of the present invention is formed by laminating a plurality of thin plate members and integrally fixing these thin plate members by brazing. Is done.

[Procedure amendment 3]

[Document name to be amended] Statement

[Correction target item name] 0009

[Correction method] Change

[Correction contents]

The flange member 10 has a substantially rhombic shape and is formed by laminating a plurality of, for example, three thin plates 11 having a thickness of, for example, 3.2 mm. That is, each sheet material 11 is formed by punching with a press an outer shape having a curved corner 12 and a hole 13 at a time, and laminating a plurality of sheet materials 11 formed by punching. The flange member 10 is formed by caulking, spot welding, or the like, and then integrally formed by brazing. As described above, a normal press can be used to punch out the thin plate material 11 having a small thickness of, for example, 3.2 mm.
2 mm × 3 = 9.6 mm, and the flange member 10 having a thickness substantially equal to the thickness of 10 mm can be formed.

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0010

[Correction method] Change

[Correction contents]

Since the thin sheet material 11 is punched by a press, a large force is not required for punching. Therefore, the peripheral edge of the surface of the thin sheet material 11 and the peripheral edge of the hole 13 do not fall off. No post-processing is required. Moreover, since the thin plate members 11 are stacked and fixed by brazing, there is no difference in strength from that of a single plate member.

[Procedure amendment 5]

[Document name to be amended] Statement

[Correction target item name] 0012

[Correction method] Change

[Correction contents]

[0012]

As described above, the flange member according to the present invention is formed by laminating a plurality of thin plates and integrally fixing these thin plates by brazing. There is no change in strength. In general, ordinary equipment and tools can be used for thin sheet processing, and processing is easy, so special equipment and post-processing are not required as in the case of a single thick sheet material. A flange member of the same strength can be provided.

Claims (1)

[Claims] 1. A flange member fixed to an end portion of a pipe material and connecting the pipe material to each other, wherein the flange member is formed by laminating and fixing a plurality of thin plate materials.