JPS5878811A - Torsion beam axle type rear suspension of car - Google Patents

Abstract

PURPOSE:To improve cornering performance by configuring a wheel support arm at the rear end of a trailing arm rotatably with each other by means of a car body load and with angle of rotation to be regulated by means of a stopper. CONSTITUTION:The rear end of a cylindrical trailing arm 2 with stopper parts 12 at symmetrical positions is fitted with a flat part 14 of a wheel support arm 6, tip of which is shaped flat 14, with a rubber bush 16 interposed between said two arms. When input load to a wheel is increased in such a configuration, the wheel support arm 6 is swiveled against the rubber bush 16 in the direction of negative the camber against the ground relative to the trailing arm 2. This angle of swivel is determined depending upon the stoppers 12, flat part 14 and the rubber bush 16. Cornering performance may be thus improved.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a torsion beam axle suspension vehicle.゛Conventionally, in rear suspension systems for cars that do not have a drive device in the rear, such as front-wheel drive vehicles, the left and right trailer arms are connected to the axle-type rear suspension / rear suspension axle by a torsion beam, From a general point of view, the Hffi frame structure is known as a Toshi wind beam axle type suspension system. When this rear suspension system receives a lateral load, it rolls using the center point of the torsion beam as a fixed point, so changes in the camber angle to the vehicle body can be kept as small as the semi-trailing gear type 5. . Therefore, the width of the wheel house can be narrowed and the interior space can be used more effectively. In addition, the strokes of the left and right wheels hardly change in response to changes in the vertical movement of the wheels or the load, and the suspension performance against vertical loads is excellent, similar to the axle-type rear suspension system.

The purpose of the present invention is to improve the cornering performance of the toshi 1 mph axle type rear suspension having the above-mentioned advantages and to provide a suspension suspension of 17 tons. A trailing arm pivotally supported on the vehicle body so as to be swingable in the vertical direction, and a wheel support arm engaged with the rear end of the trailing arm; The retainer is a stone that rotates with the load of the car body and regulates the rotation angle.
This means that Since the present invention is configured in this manner, when the input load to the wheel increases due to a bump, torsional displacement occurs between the trailing arm and the wheel support arm, making the ground camber negative; - Narinda performance is improved. can be improved.

Embodiments of the present invention will be described below based on the drawings.

The first example is as shown in FIGS. 1 and 2.

The trailing arm 2 is pivotally supported on the vehicle body so that it can swing vertically, the cross beam 4 connects the trailing arm 2 to the left and right in a U-shaped cross section, and the rear end of the trailing arm 2 rotates by a certain amount. The wheel 9 is rotatably supported on the wheel support arm 6, which is rotatably mounted on the wheel support arm 6, a strut 8° consisting of a shock absorber 8 and a spring 8b. The shaft support of the trailing arm 2 to the vehicle body is comprised of f') Kerato 10 attached to the vehicle body and a pin IIK attached thereto. As shown in FIGS. 3 and 3, the mounting portion of the trailing arm 2 and the wheel support arm 6 is cylindrical and has a rear end of the trailing arm 2 having a stopper portion 12 at a symmetrical position of the cylinder. The front end of a wheel support arm 6 having a flat portion 14 that engages with the strut horn base portion 12 is attached with a two-part bush 16 interposed therebetween. In the above configuration, when the input load to the wheel increases due to a ramp, the wheel support arm 6 rotates against the rubber bush 16 in a direction that makes the ground camber negative with respect to the trailing arm 2. The limit of the rotation angle is determined by the strut horn 4 portion 12, the flat portion 14 and the rubber bush 16.

In the second embodiment, as shown in FIG. 5, the left and right trailing arms 20 are configured to approach each other toward the rear. Since the other configurations are the same as the first example,
The same reference numerals as in the first embodiment are used, and the explanation thereof will be omitted.

[Brief explanation of the drawing]

Fig. 1 is a plan view of the first embodiment, Fig. 2 is a side view of the first embodiment, Fig. 3 is a sectional view of the engagement portion between the trailing arm and the wheel support arm, and Fig. μ is the third embodiment. A cross-sectional view taken along line 1--1 in the figure, and FIG. 5 is a plan view of the second embodiment. 2...Trailing arm 4 @11@Cross beam, 6...Wheel support arm @ass stocked% 9.0 wheel, 16...Rubber bush, 2
0・Lu・) L/+ ring arm, 22...hoi-)h support arm. Patent applicant: Toyo Kogyo Co., Ltd.

Claims (1)

[Claims] (1) A system consisting of a nine trailing arm pivotally supported on the vehicle body so as to be swingable in the vertical direction, and a wheel support arm engaged with the rear end of the trailing arm p; A torsion beam axle type rear suspension Vwy for an automobile is characterized in that it is provided with a shaft that mutually rotates under the load of the vehicle body and regulates the rotation angle.