CN-114953889-B - Suspension frame

Abstract

The present invention provides a suspension that distributes a load input from a spring seat to a torsion beam. A spring seat (13) provided in a suspension (10) is provided with a second longitudinal flange (35A) which is arranged in parallel with a first longitudinal flange (32A) through a gap (S), and is joined to a torsion beam (12) via the first longitudinal flange (32A) and the second longitudinal flange (35A).

Inventors

• Zong Tuodao

Assignees

• 本田技研工业株式会社

Dates

Publication Date

20260508

Application Date

20220124

Priority Date

20210218

Claims (3)

1. 1. A suspension includes a torsion beam connecting trailing arms provided on the left and right of a vehicle body, and a spring seat coupled to the torsion beam and supporting a suspension spring, The spring seat includes a first vertical flange extending in the front-rear direction of the vehicle body, and a second vertical flange disposed in parallel with the first vertical flange with a gap interposed therebetween, The spring seat is engaged with the trailing arm and with the torsion beam via the first longitudinal flange and the second longitudinal flange, The gap between the first longitudinal flange and the second longitudinal flange is opened upward, Only portions of the first and second longitudinal flanges, which are located on opposite sides of the gap, are welded to the torsion beam.
2. 2. The suspension according to claim 1, wherein the second longitudinal flange is provided on the trailing arm side from the first longitudinal flange.
3. 3. The suspension according to claim 1 or 2, wherein at least a portion of the second longitudinal flange is curved in the vehicle width direction.

Description

Suspension frame Technical Field The present invention relates to suspensions. Background In a four-wheeled vehicle, a torsion beam type suspension including a torsion beam connecting trailing arms provided on left and right sides of a vehicle body is used. In a torsion beam type suspension, a spring seat is provided at a corner portion formed by a trailing arm and a torsion beam, and a side wall is provided at a peripheral edge of the spring seat, and the side wall is joined to the torsion beam (for example, refer to patent document 1). Prior art literature Patent literature Patent document 1 Japanese patent laid-open publication No. 2005-014833 Disclosure of Invention Problems to be solved by the invention However, when the end portion of the side wall of the spring seat is brought into contact with the torsion beam, there is a possibility that the load input from the side wall to the torsion beam is concentrated. The present invention has been made in view of the above circumstances, and an object thereof is to disperse a load input from a spring seat to a torsion beam. Means for solving the problems In order to achieve the above object, there is provided a suspension including a torsion beam connecting trailing arms provided on left and right sides of a vehicle body, and a spring seat coupled to the torsion beam and supporting a suspension spring, wherein the spring seat includes a first vertical flange extending in a front-rear direction of the vehicle body, and a second vertical flange disposed in parallel with the first vertical flange with a gap interposed therebetween, and the spring seat is coupled to the torsion beam via the first vertical flange and the second vertical flange. In the above configuration, the gap between the first and second vertical flanges may be opened upward. In the above configuration, only the portions of the first and second longitudinal flanges on the opposite sides of the gap may be welded to the torsion beam. In the above configuration, the second vertical flange may be provided closer to the trailing arm than the first vertical flange. In the above configuration, at least a part of the second vertical flange may be curved in the vehicle width direction. Effects of the invention According to the present invention, the load input from the spring seat to the torsion beam can be dispersed. Drawings Fig. 1 is a diagram showing a suspension according to an embodiment of the present invention. Fig. 2 is a perspective view of the suspension shown in fig. 1. Fig. 3 is an enlarged view showing a front wall portion of the spring seat together with a peripheral structure. Fig. 4 is a view of the junction between the spring seat and the torsion beam as seen from substantially above. Fig. 5 is a view of the junction between the spring seat and the torsion beam from the substantially left side (the vehicle width direction inner side). Fig. 6 is a view of the junction between the spring seat and the torsion beam as seen from the front. Description of the reference numerals 10, A suspension; 11, a trailing arm; 12, torsion beam; 13, spring seat; 32A, longitudinal flange (first longitudinal flange); 33A, longitudinal flange; 35A, a longitudinal flange (second longitudinal flange); 35B, the base end side of the vertical flange 35A; S, gaps; X is the weld bead. Detailed Description An embodiment of the present invention will be described below with reference to the drawings. In the description, each direction such as front, rear, left, right, up and down is a direction based on the vehicle body unless otherwise specified. The reference numeral FR shown in each figure denotes the front of the vehicle body, the reference numeral UP denotes the upper part of the vehicle body, and the reference numeral LH denotes the left part of the vehicle body. Fig. 1 is a diagram showing a suspension according to an embodiment of the present invention. The suspension 10 is a torsion beam type suspension provided in a vehicle body of a four-wheeled vehicle such as an automobile, and may be referred to as a vehicle suspension device. The suspension 10 includes left and right trailing arms 11 extending in the vehicle body front-rear direction, a torsion beam 12 connecting the left and right trailing arms 11, and left and right spring seats 13 joined to the torsion beam 12. Fig. 1 shows a suspension structure around a right rear wheel, and a suspension structure around a left rear wheel is bilaterally symmetrical to a suspension structure around a right rear wheel. Fig. 1 shows an axis L1 of the torsion beam 12 and an axis L2 of an axle supported by the trailing arm 11 via an axle bracket, not shown. Each of the axes L1 and L2 extends in the vehicle width direction, and the axis L2 of the axle is located rearward of the axis L1 of the torsion beam 12 in a plan view of the vehicle body. In fig. 1, reference numeral 14 is a reinforcing member that is engaged with the torsion beam 12 and the trailing arm 11. Fig