JPH089285B2 - Car suspension structure - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a suspension structure for an automobile in which a front and rear member is provided with a link.

(Prior Art) In a vehicle suspension, a lateral member is connected to a knuckle that supports a wheel, and the lateral member side or the knuckle side is connected to a vehicle body side by a trailing arm or a longitudinal member such as a radius rod. Become.

Conventionally, a rubber bush is interposed at the vehicle body side pivot portion at the tip of the front-rear direction member.

(Problems to be solved by the invention) However, since the rubber bush has a small amount of displacement in the front-rear direction, the degree of shock absorption in the front-rear direction is also small, and the body-side pivot portion itself of the front-rear direction member moves, so that the suspension. It also affects Geotry.

Therefore, the object of the present invention is to obtain a large amount of displacement in the front-rear direction and improve the degree of shock absorption,
Moreover, it is an object of the present invention to provide a vehicle suspension structure capable of preventing the movement of the vehicle body side pivot portion of the front-rear direction member and eliminating the influence on the suspension geometry.

(Means for Solving Problems) In order to achieve the above-mentioned object, the present invention has
The book is above the wheel center of the knuckle and 2
A book is connected to the knuckle below the one lateral member so as to be spaced apart from each other in the front-rear direction, and is rotatable around the vertical axis at both ends between the knuckle and the front-rear member.
It is characterized in that the book links are vertically separated from each other.

(Operation) By swinging the links (11), a large amount of suspension displacement in the front-rear direction is obtained and the shock is also absorbed, and movement of the vehicle body side pivot part (6) of the front-rear direction member (5) is unnecessary. Therefore, suspension ometry will not be affected.

(Examples) Examples will be described below with reference to the accompanying drawings.

FIG. 1 shows a schematic appearance of the embodiment, in which a knuckle (1) for bearing a wheel (not shown) is provided on the upper side of the vehicle body (B),
At the lower part, three links (2), (3), (4), which are lateral members, both front and rear, are connected, and as is known, the knuckle (1) side and the links (2), (3). ), (4) side and the vehicle body between the fluid pressure damper is installed in a substantially vertical direction,
(5) is a trailing arm that forms a front-rear member. The trailing arm (5) is pivotally supported at the front end (6) about the lateral axis (9) with respect to the vehicle body, and is formed into a bifurcated upper and lower rear end (7), (7). Linked to (1
1) and (11) are rotatably pivoted through vertical shafts (12) and (12). Further, the links (11), (11) are rotatably attached to the front part of the knuckle (1) via the same vertical shafts (13), (13), and between the vertical shaft (13) and the link (11). As shown in FIG. 2, a rubber bush (14) with a pipe is interposed in the shaft by press fitting.

In this way, when the vehicle rides on the road step while the vehicle is traveling, the knuckle (1) is moved to the trailing arm (5) by swinging around the vertical shafts (12) and (13) at both ends of the link (11). ) Becomes relatively large in the front / rear direction, which absorbs the shock in the front / rear direction. Further, since the front end portion (6) which is the vehicle body side pivot of the trailing arm (5) does not move back and forth, the suspension geometry is not affected. The knuckle (1) is returned to its normal position by the torsional restoring force of the rubber bush with tube (14).

Here, the limit of the amount of displacement in the front-rear direction is that the integral stopper rubbers (16) and (16) for restricting the swing of the link (11) are provided on the knuckle (1) side, the trailing arm (5) side, or the vehicle body side. It can be set by preparing for either.

In addition to the suspension system of the above embodiment, the suspension structure of the present invention can be similarly configured for a suspension system such as a double wishbone type suspension system.

(Effects of the Invention) As described above, according to the present invention, in the suspension of the automobile, since the front and rear members are provided with the links rotatable about the vertical axis at both ends, the displacement in the front and rear direction is increased and the shock is increased. The degree of absorption can be improved, and the movement of the vehicle body side pivot portion of the front-rear direction member can be prevented to eliminate the influence on the suspension geometry.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of this suspension, and FIG.
The figure is a partially cutaway enlarged view of the link portion. In the drawings, (1) and (21) are knuckles, (2) and
(3) and (4) are lateral members, (5) is a longitudinal member,
(6) is the body side pivot part, (11) is a link, (12),
(13) is a vertical shaft, (14) is a rubber bush, (16) is a stopper rubber, and (B) is a vehicle body.

Claims (1)

[Claims] 1. A suspension of an automobile in which a lateral member is connected to a knuckle that supports a wheel, and the knuckle side and the vehicle body side are connected to each other by a longitudinal member. One lateral member is a knuckle wheel. Above the center and below the one lateral member, the two rods are separated from each other in the front-rear direction and connected to the knuckle, and the vertical shaft is provided at both ends between the knuckle and the front-rear member. A suspension structure for an automobile, characterized in that two rotatable links are provided vertically separated from each other.