JPS6144882Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a wheel alignment adjustment device, and more particularly to a wheel alignment adjustment device for an automobile equipped with a double wishbone type suspension in which wheels are suspended by an upper arm and a lower arm.

Conventionally, the adjustment of wheel alignment such as the camber and caster in a double-width bone type suspension involves bolting the suspension member, which is the attachment part of the atsupa arm, to the inner shaft provided on the atsupa arm, and also tightening the suspension member and the inner shaft. This is done with a shim interposed between them.

However, since the shims are simply interposed between the suspension member and the inner shaft, when the bolts are retightened or become loose, the shims placed across the bolts are removed. There is a risk of it turning around the bolt and falling off.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a wheel alignment adjustment device configured to prevent the shim from falling off by holding the shim unrotatably.

The present invention is a device for adjusting wheel alignment by interposing a shim between a suspension member of a vehicle body and an inner shaft of an upper arm, in which one of the inner shaft and the suspension member is located at a portion facing the other. The shim has a recess that is open at the top, and the shim can be inserted into and removed from the recess from above, and is non-rotatably engaged with the recess in the inserted state.

Embodiments of the present invention will be described below with reference to the drawings.

The wheel alignment adjustment device of the present invention is applied to a double wishbone type suspension in which a wheel 14 is supported by a lower arm 10 and an upper arm 12, as shown in FIG.

The lower arm 10 is pivotally connected to the vehicle body 16 at its inner end, and connected at its outer end to a knuckle 20 on which a wheel 14 is mounted via a ball joint 18.

The upper arm 12 is bifurcated from an outer end connected to the nutcle 20 via a ball joint 22 and extends inward, and has an inner shaft 24 attached to the inner end so as to be relatively rotatable. has. This inner shaft 24 is bolted to a suspension member 26 provided on the vehicle body 16, as will be described later. Further, a shock absorber 28 and a coil spring 30 are disposed between the suspension member 26 and the lower arm 10, and constitute a suspension for the wheel 14.

As shown in FIG. 2, the inner shaft 24 has two shafts spaced apart in the radial direction.
The bolt hole 32 has two bolt holes 32 and a recess 34 provided at a portion facing the suspension member 26 at the peripheral edge of each bolt hole 32. In the illustrated example, the recess 34 is a notch extending from the upper side to the lower side of the inner shaft 24, and the recess 34 is a notch extending from the upper side to the lower side of the inner shaft 24,
are parallel.

Suspension member 26 is inner shaft 2
A bolt hole 38 opened outward is provided at a portion opposite to the recess 4. In the illustrated example, a sleeve 36 is placed within the recess 34 and tightened between the inner shaft 24 and the suspension member 26. This sleeve 36 is formed to be slightly longer than the depth of the recess 34. When fixing the inner shaft to the suspension member, the sleeve 3 is used to ensure good tightening and maintain strength near the recess of the inner shaft.
It is preferable to arrange 6.

Inner shaft 24 and suspension member 2
6 is inserted into the bolt hole 32 from the inside of the inner shaft 24, and is inserted into the bolt hole 42 of the sleeve 36.
and a bolt 44 projecting outward through the bolt hole 38 of the suspension member 26 and a nut 46 screwed into the bolt 44.

As shown in FIG. 3, the shim 40 integrally includes a pair of leg portions 48 spaced apart from each other and a knob portion 50 that protrudes in a direction opposite to the leg portions 48. The outer width W ₁ of the pair of legs 48 is slightly shorter than the distance between the opposing wall surfaces 35 , 35 of the recess 34 , and the inner width W ₂ is larger than the diameter of the bolt 14 .
As a result, the shim 40 can be inserted into and removed from the recess 34, and in the inserted state, the shim 40 non-rotationally engages the recess 34.

Wheel alignment can be adjusted by simply loosening the nut 46, inserting the shim 40 into the recess 34, and then tightening the nut 40 to sandwich the shim 40 between the inner shaft 24 and the sleeve 36. In this case, the camber angle can be adjusted in two directions:
The same number of shims 40 of the same thickness may be inserted into the two recesses 34, and the caster angle can be adjusted by inserting the same number of shims 40 into the two recesses 34.
Different numbers of shims 40 are inserted so that the total thickness of the shims inserted into one recess 34 and the other recess 34 are different.

Instead of the above example, the suspension member may be provided with a recess.

According to the present invention, the shim can be held in a non-rotational manner by inserting the shim into a recess provided in the inner shaft or suspension member. Therefore, even when the bolt is retightened or loosened, the shim is kept in an immovable position without rotating.
Sims never fall out.

[Brief explanation of drawings]

FIG. 1 is a front view of a double wishbone type suspension to which an alignment adjustment device according to the present invention is applied, FIG. 2 is a plan view of an attachment part of an upper arm, and FIG. 3 is a front view of a shim. 10: Lower arm, 12: Atsupa arm, 2
4: Inner shaft, 26: Suspension member, 32, 38, 42: Bolt hole, 34: Recess,
44: Bolt.

Claims (1)

[Scope of utility model registration request] A device for adjusting wheel alignment by interposing a shim between a suspension member of a vehicle body and an inner shaft of an atsupah arm, wherein one of the inner shaft and the suspension member has an upper opening at a portion facing the other. An adjusting device for a wheel alignant, the shim having a recess that is inserted into and removed from the recess from above and non-rotatably engaged with the recess in the inserted state.