JPS5830729Y2 - Lifting device for vehicles - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a trailing type suspension system for automobiles and other vehicles.

The applicant of this application has previously developed a device of this type, which
For a type in which a pair of left and right trailing arms connected to a left and right wheel are each rotatably mounted with a left and right rotation shaft extending diagonally laterally at each root, the rotation Both outer ends &l have a rotational axis substantially perpendicular to the length direction of the body frame.
- each of which is supported on the body frame via one bearing, and is bent in a substantially V-shape that is not supported on the body frame at both inner ends having rotation axes that intersect obliquely in the longitudinal direction of the body frame. We proposed a type that rotatably connects to T″i through a cylindrical joint (see Utility Model Application No. 75774/1989).
In this case, since the cylindrical joint is not supported by the vehicle body frame, it is somewhat unstable, and the whole joint tends to rotate due to the reaction force of the wheel when loaded.

The purpose of the present invention is to obtain a device that does not have such inconveniences.
A pair of left and right trailing arms 3, 3 connected to 2 are rotatably mounted on a pair of left and right rotation shafts 4, 4 extending diagonally laterally at their respective roots, and the rotation shafts 4, 4 is supported on the vehicle body frame 1 via each bearing 5° 5 at both outer ends having rotation axes substantially orthogonal to the longitudinal direction of the vehicle body frame 1, and is supported in the longitudinal direction of the vehicle body frame 1. Tll (/C) In the case of a rotatably connected type, the body frame 1vC is connected via a substantially V-shaped cylindrical joint 6 which has buttons at both inner ends and which have rotation axes obliquely intersecting with each other, and the body frame 1vC is not supported. A torsion bar T is placed on the side of the shaped joint 6.
horizontally and with holes on both ends of each holder 8, 8.
The vortex shafts 4, 4 are connected to each other through the vortex shafts 4, 4, and the two buttons in the middle thereof are connected to the contact f6 through the holder 9.

The torsion bar γ has both ends bent forward to have an approximately U-shape as a whole, and each end is fitted with rubber in a holder 8 fixed on each rotating shaft 4, as shown in FIG. 3, for example. The outer circumferential rubber or other backing 11 is inserted into and supported through the other banking 10, and the middle part thereof is fixed to the joint joint 6 as shown in FIG. 4, for example.
It is inserted and supported through.

In the drawing, 12.12 is a pair of left and right shock absorbers extending upward from the tip side of each trailing arm 3, 3.
3.13 shows the coil spring on the lower outer periphery.

To explain its operation, when both axles 2, 2 move up and down at the same time, each arm 3, 3 rotates around the axis A-A at the rotation axis 4, 4 at its root, which is different from the conventional This is the same as in the case of the trailing method, and when the vehicle turns,
Each of the axes 4, 4 rotates separately about the respective axes B-C and B-C, which is the same as in the case of the conventional semi-trailing system, and this point is different from the previously proposed one in particular. However, in this case, the torsion bar I is disposed horizontally between the two shafts 4, 4, and functions as a stabilizer to increase the roll rigidity of the vehicle, and the torsion bar I is connected to the cylindrical joint 6, so that the torsion bar I is connected to the cylindrical joint 6 and 6, and in other words, it also acts as a positioning member.

In this way, according to the present invention, the torsion bar 1 is installed horizontally on the side of the cylindrical joint 6 in the intermediate part, and this acts as a positioning member for preventing rotation of the joint 6, which is different from the one proposed earlier. In addition, the torsion bar T also functions as a stabilizer, increasing roll rigidity and increasing running stability of the vehicle.

[Brief explanation of drawings]

Fig. 1 is a side view of an example of the proposed device, Fig. 2 is a plan view thereof, Fig. 3 is a front view of the holder portion at the end, and Fig. 4 is a sectional view taken along the line IV-IV in Fig. 2. be. DESCRIPTION OF SYMBOLS 1... Vehicle body frame, 2, 2... Wheel, 3, 3... Trailing arm, 4, 4... Rotating shaft, 5, 5... Bearing, 6... Cylindrical joint , γ...torsion ha, 8,8
...Holder, 9...-Holder.

Claims (1)

[Scope of utility model registration request] On the lower surface of the vehicle body frame 1, there are left and right wheels connected to the left and right wheels 2, 2.
The trailing arms 3, 3 are rotatably mounted on the right and left sides of the trailing arms 3, 3 extending diagonally laterally at their respective roots, and the rotation axes 4, 4 are attached to the vehicle body frame 1. It has a rotation axis that is substantially orthogonal to the length direction, and is supported by the body frame 1 via each bearing 5, 5, and a rotation axis that is diagonal to the length direction of the body frame 1. The two inner ends Vc are connected to each other rotatably through a substantially V-shaped cylindrical joint 6 which is not supported on the body frame 1, and the lateral side of the joint joint 6 is pressed. A torsion buff is installed horizontally on the holder, and this is applied to both ends of the torsion buff, and each rotating shaft 4 is connected via each holder 8, 8.
, 4, and the joint 6 through the holder 9 with a button in the middle thereof.
A traction system for a vehicle that is connected to