JPH09156336A - Bracket for leaf spring of vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an inexpensive bracket by which work manhours can be reduced and which is excellent in strength by constituting it of only two parts by fixing a support member to a recessed part of a main body by welding. SOLUTION: A bracket 10 for a leaf spring has a support member 11 and a main body 12. The support member 11 supports one end of a leaf spring, and is installed on a chassis frame of a vehicle. The main body 12 holds the support member 11, and installing surfaces 12b to be installed on the chassis frame are vertically formed on both ends, and a recessed part having the same shape as an external shape of the support member 11 is horizontally formed in a cross-sectional U-shaped connecting part 12c to connect the two installing surfaces 12b. The bracket 10 for a leaf spring is manufactured by integrally welding a joining part by a welding material 15 by bringing the support member 11 into contact with the recessed part formed in the main body. Therefore, an inexpensive bracket by which work manhours can be reduced and which is excellent in strength, can be obtained.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle leaf spring bracket, and more particularly to a leaf spring bracket which is conventionally manufactured by welding four parts.
The present invention relates to a vehicle leaf spring bracket that is composed of only one part, reduces the cost of the member, and significantly shortens the welding length to reduce the number of processing steps, and is inexpensive and excellent in strength.

[0002]

2. Description of the Related Art A leaf spring is attached to a vehicle by supporting both ends of a leaf spring bracket fixed to a chassis frame, and a conventional leaf spring bracket 1 is shown in FIG. (See FIG. 5), a main body 2 in which a rivet hole 2a for fixing with a rivet is formed, two auxiliary members 4 welded to the main body 2 with a welding material 3, and the auxiliary member 4 with a welding material 3 The welded support member 5 was composed of three members, that is, a total of four members.

A pin hole 5a is formed in the support member 5, and a pin (not shown) is fixed in the pin hole 5a to connect a leaf spring (not shown).

Conventional leaf spring bracket 1
As described above, the four components of the main body 2, the two auxiliary members 4 and the support member 5 are separately manufactured, and the main body 2 and the two auxiliary members 4 and the two auxiliary members 4 and the support member 5 are manufactured.
And were welded together to form an integrated structure.

The leaf spring bracket 1 described above
Requires a lot of man-hours, that is, the main body 2 requires four steps of cutting, blanking, bending, and punching, and the auxiliary member 4 requires cutting. Two steps of processing, outer shape and hole punching, and three steps of cutting the material plate, outer shape punching and bending are required to manufacture the supporting member 5, and a total of 11 steps are required for manufacturing. Was there.

Furthermore, the total length of the four welds is several tens of c.
Since it is an important component that reaches m and supports the weight of the vehicle, the strength of the welded part is required to be sufficient, and a skilled welder must carefully weld it, which costs a lot of production cost. There was a drawback that the cost of parts was high.

[0007]

SUMMARY OF THE INVENTION The present invention has been made to eliminate the above-mentioned drawbacks of the prior art. The object of the present invention is to mount a leaf spring bracket on a vertical rivet hole. Only two parts are manufactured by welding the main body in which the mounting surface and the recess having the same shape as the outer shape of the support member are integrally formed, and the support member having a U-shaped cross section in which the pin hole is formed. Is to make it possible to manufacture a bracket for a leaf spring, and to significantly reduce processing man-hours and member costs, thereby reducing costs.

Another object of the present invention is to make it possible to provide a leaf spring bracket which is excellent in strength and can be manufactured by reducing the welding length by half to reduce the number of working steps.

[0009]

SUMMARY OF THE INVENTION In summary, the present invention (claim 1) holds a leaf spring in a vehicle leaf spring bracket which is disposed at both ends of the leaf spring and which is mounted on a chassis frame. A support member having a U-shaped cross section with pin holes for fixing pins, a vertical mounting surface having a plurality of rivet holes for fixing to the chassis frame, and a recess having the same outer shape as the support member are provided. A horizontally formed main body is constituted by only two parts by fixing the support member to the concave portion of the main body by welding.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to embodiments shown in the drawings. 1 to 4, a leaf spring bracket 10 according to the present invention includes a support member 11
And a main body 12.

The support member 11 supports one end 13a of the leaf spring 13 and is attached to a chassis frame 14 of a vehicle (not shown). For example, a metal plate having a thickness of about 4.5 mm is used as a sectional member. The pin holes 11b are formed in both ends 11a arranged in parallel with each other.

The main body 12 is for holding the support member 11, and is made by molding a metal plate having a thickness of, for example, about 4.5 mm, and has a mounting surface for mounting to the chassis frame 14 at both ends. 12b is formed vertically, 2
A concave portion 1 having the same shape as the outer shape of the support member 11 is formed in a connecting portion 12c having a U-shaped cross section for connecting the two mounting surfaces 12b.
2a is formed horizontally.

The mounting surface 12b has a plurality of rivet holes 1.
2d is formed and can be fixed to the chassis frame 14 by a rivet 16. The leaf spring bracket 10 is manufactured by bringing the support member 11 into contact with the recess 12a formed in the main body 12 and welding the joint portion with the welding material 15 so as to be integrated.

The leaf spring bracket 10 manufactured as described above has a body 12 as shown in FIGS.
The rivet 16 is inserted into the rivet hole 12d of the rivet and is fixed to the chassis frame 14 by caulking the rivet.
Fix the pin 18 to the pin hole 11b of the
One end 13a of the leaf spring 13 is attached to the pin 18 so that the pin 18 can be assembled to a vehicle (not shown).

The present invention is configured as described above,
Hereinafter, the operation will be described. In FIG. 6, the main body 1
2 cuts a metal plate 20 having a thickness of 4.5 mm (see FIG. 6).
(A)), and then blanking is carried out by a press machine to manufacture a blank 21 (Fig. 6 (b)).
After bending to form a semi-finished product 22 (see FIG. 6).
(C)), rivet holes 12d are drilled on both mounting surfaces 12b (FIG. 6 (d)), and a total of four steps of press working are performed.

Although not shown, the supporting member 11 is also manufactured by cutting a metal plate having a thickness of, for example, 4.5 mm, punching the outer shape and punching, bending, and pressing in three steps. .

As shown in FIG. 1, the leaf spring bracket 10 is manufactured by welding the support member 11 to the concave portion 12a of the main body 12 with the welding material 15. The leaf spring bracket 10 is conventionally composed of four parts. By configuring the bracket 10 with only two parts, it is possible to reduce the total of 11 processing steps required for manufacturing each part to 7 steps.

Also, the welding length is greatly shortened, and about half of the conventional welding length can be reduced, and thus the cost of the leaf spring bracket 10 can be reduced by several tens of percent.

[0019]

As described above, according to the present invention, a leaf spring bracket is integrally formed with a vertical mounting surface in which a rivet hole is formed and a recess having the same shape as the outer shape of a support member, and a pin. Since it is manufactured by welding with a support member having a U-shaped cross-section with holes formed, it is effective in manufacturing a leaf spring bracket with only two parts. As a result, the processing man-hours and member cost are significantly reduced. Therefore, there is an effect that the cost can be reduced.

Further, with the above structure, there is an effect that the welding length is halved to reduce the number of working steps, and it is possible to provide a leaf spring bracket which is excellent in strength and is inexpensive.

[Brief description of the drawings]

1 to 6 relate to an embodiment of the present invention, and FIG. 1 is a perspective view of a leaf spring bracket.

FIG. 2 is a perspective view of a main body.

FIG. 3 is a perspective view of a support member.

FIG. 4 is a front view of the leaf spring bracket attached to the chassis frame.

FIG. 5 is a vertical cross-sectional view of the leaf spring bracket attached to the chassis frame.

FIG. 6 is a perspective view showing a manufacturing process of the main body.

FIG. 7 is a perspective view of a leaf spring bracket according to a conventional example.

[Explanation of symbols]

 10 Vehicle Leaf Spring Bracket 11 Supporting Member 11b Pin Hole 12 Main Body 12a Recess 12b Mounting Surface 12d Rivet Hole 13 Leaf Spring 14 Chassis Frame 18 Pin

Claims (1)

[Claims] 1. A leaf spring bracket for a vehicle, wherein the leaf springs are provided at both ends of the leaf spring and are attached to a chassis frame, and pin holes for fixing pins for holding the leaf spring are formed to have a U-shaped cross section. A support member, a vertical mounting surface in which a plurality of rivet holes for fixing to the chassis frame are formed, and a main body in which a recess having the same shape as the outer shape of the support member is horizontally formed; A bracket for a leaf spring of a vehicle, characterized in that the support member is fixedly welded to and is constituted by only two parts.