JP2000280928A - Installing structure of deflection angle adjusting stopper bolt in axle of vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily adjust a deflection angle by easily adjusting a screw fitting position of a deflection angle adjusting stopper bolt by arranging the deflection angle adjusting stopper bolt along a shaft inclining to the knuckle center axis so that an outer peripheral surface of a head part separates by a prescribed distance from a boss part outer peripheral surface. SOLUTION: At adjusting time of a screw fitting position of a deflection angle adjusting stopper bolt 6, a nut 14 is fastened and loosened to fix the deflection angle adjusting stopper bolt 6 in an adjusted screw fitting position. This nut 14 is rotated by inserting a tip part of a tool such as an offset wrench into clearance between a head part of the deflection angle adjusting stopper bolt 6 and the outer periphery of a boss part 1A. At this time, since interference between a tip part of the tool such as the offset wrench and an outer peripheral surface of the boss part 1A can be avoided, the screw fitting position of the deflection angle adjusting stopper 6 can be easily adjusted without being anxious about use of the tool such as the offset wrench.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for mounting a turning bolt for turning angle adjustment on an axle of a vehicle.
In particular, the present invention relates to a technique for improving usability of a tool for attaching and detaching a turning bolt for adjusting a turning angle.

[0002]

2. Description of the Related Art Conventionally, an axle of a vehicle, for example, a front axle, is provided at both ends of an axle body 1 with left and right knuckles 3 (only the right is shown) as shown in FIG. ) Are rotatably connected to each other with the king pin 4 as an axis, and the steering arm 5 fixed to one knuckle 3 moves the wheel by the knuckle 3.

In such a front axle, as shown in FIG. 7, a mechanism for adjusting a turning angle of a wheel includes:
For turning angle adjustment, which is screwed into a predetermined position of the knuckle 3 and whose head faces a position near a predetermined position on the outer peripheral surface of the boss portion 1A on which the king pins 4 at both ends of the axle body 1 are supported. A stopper bolt 6 and a projection 7 formed at a predetermined position on the outer peripheral surface of the boss 1A and capable of locking the head of the stopper bolt 6 at a predetermined turning angle when the knuckle 3 is turned are provided. In some cases, the turning angle is adjusted by adjusting the position of the head with respect to the protrusion 7 by adjusting the screw fitting position of the turning angle adjusting stopper bolt 6.

The knuckle 3 has a base 11 and a hub 11 to which a wheel 10 is attached rotatably via bearings 8 and 9. The hub 11 is rotatably supported on the knuckle 3.
A retainer 13 (see FIGS. 8 and 9) is interposed between the knuckle 3 and a flange portion 3A in which a screw hole 12 is formed.

[0005]

However, in such a conventional structure, the turning angle adjusting stopper bolt 6 is not provided.
Is located near a predetermined position on the outer peripheral surface of the boss portion 1A, and the turning angle adjusting stopper bolt 6 is disposed along an axis parallel to the central axis of the knuckle 3. The outer peripheral surface of the head is very close to the outer peripheral surface of the boss 1A.

In such a configuration, when adjusting the screw fitting position of the turning angle adjusting stopper bolt 6, as shown in FIG. 10, the turning angle adjusting stopper bolt 6 is fixed at the adjusted screw fitting position. It is necessary to pass the tip of a tool 15 such as an eyeglass wrench for loosening or tightening the nut 14 to be passed through a narrow gap between the head of the turning angle adjustment stopper bolt 6 and the outer peripheral surface of the boss 1A. Inevitably, the tip of the tool 15 such as an eyeglass wrench inevitably interferes with the outer peripheral surface of the boss 1A, which makes it difficult to use the tool 15 such as an eyeglass wrench. However, there is a problem that the screw fitting position cannot be adjusted and the turning angle cannot be adjusted.

In order to solve such a problem, as shown in FIG. 10, the outer peripheral surface of the boss 1A is shaved (shaved portion 1A).
6) The head and boss 1 of the turning bolt 6 for turning angle adjustment
Although it is conceivable to increase the gap between the outer peripheral surface of the boss A and the boss 1A, the thickness of the boss 1A is reduced, and the strength of the boss 1A is reduced.

The present invention has been made in view of the above-mentioned conventional circumstances, and the adjustment of the screw fitting position of the turning angle adjustment stopper bolt is easy by improving the mounting structure of the turning angle adjustment stopper bolt. It is an object of the present invention to provide a mounting structure of a turning angle adjusting stopper bolt for an axle of a vehicle, which has an advantage that the turning angle can be easily adjusted, and the strength of the boss portion is not reduced. .

[0009]

Means for Solving the Problems To achieve the above object, an invention according to claim 1 is provided at both ends of an axle body,
Left and right knuckles connected to each other via a tie rod arm are connected rotatably around a king pin, respectively.
The knuckle performs a turning operation of a wheel by the movement of a steering arm fixed to one knuckle, and is screw-fitted to a predetermined position of the knuckle, and its head has king pins at both ends of the axle body. A turning angle adjusting stopper bolt facing a predetermined position on the outer peripheral surface of the boss portion through which the knuckle is formed is formed at a predetermined position on the outer peripheral surface of the boss portion. An axle for a vehicle, comprising: a protrusion that can lock the head of the stopper bolt at a turning angle; wherein the turning bolt for adjusting the turning angle is fixed to the outer peripheral surface of the head from the outer peripheral surface of the boss portion. The knuckle is arranged along an axis inclined with respect to the central axis so as to be separated from the knuckle central axis.

The invention according to claim 2 is characterized in that the surface of the projection on which the stopper bolt head is locked is formed on a surface substantially orthogonal to the center axis of the stopper bolt in the locked state. And

According to a third aspect of the present invention, the knuckle has a base portion and a tip end portion rotatably supported by a hub to which a wheel is mounted via a bearing, and a bearing end surface on the base portion side and a turning angle of the knuckle. A configuration in which a retainer is interposed between the adjusting pull-out bolt and a flange portion having a screw hole into which the screw is fitted.
In an axle of a vehicle in which the retainer and the bearing are pulled out from the knuckle by screwing in the screw hole while pressing the tip against the retainer by screwing into the screw hole, the end face of the pull-out bolt of the retainer comes into contact with the axle. A contact surface is formed on a surface substantially perpendicular to a central axis inclined with respect to a knuckle central axis of the extraction bolt and substantially parallel to a tip end surface of the extraction bolt.

Next, the operation of the present invention will be described. In the invention according to claim 1, although the head of the turning bolt for adjusting the turning angle faces a position near a predetermined position on the outer peripheral surface of the boss portion through which the kingpins at both ends of the axle main body are supported, the turning angle is set. The adjusting stopper bolt is disposed along an axis inclined with respect to the knuckle center axis, and the outer peripheral surface of the head is separated from the outer peripheral surface of the boss by a predetermined distance.

In such a configuration, when adjusting the screw fitting position of the turning angle adjusting stopper bolt, the spectacles for loosening or tightening the nut for fixing the turning angle adjusting stopper bolt at the adjusted screw fitting position. When passing the tip of a tool such as a wrench through the gap between the head of the turning angle adjustment stopper bolt and the outer peripheral surface of the boss, the tip of the tool such as an eyeglass wrench may interfere with the outer peripheral surface of the boss. It is possible to easily adjust the screw fitting position of the turning angle adjusting stopper bolt without being troubled by using a tool such as a spectacle wrench, and the turning angle can be adjusted.

According to the second aspect of the present invention, if the surface on which the stopper bolt head of the projection is locked is formed on a surface substantially orthogonal to the center axis of the stopper bolt in the locked state, the stopper bolt When the head is locked to the projection, the stopper bolt head is at a substantially right angle to the projection, the two are properly locked, and the turning angle is properly regulated.

According to the third aspect of the present invention, the surface of the retainer contacting the tip of the extraction bolt is a surface substantially perpendicular to the center axis of the extraction bolt and substantially parallel to the surface of the extraction bolt. By forming the pull-out bolts along the axis inclined with respect to the knuckle center axis, even if the tip end face of the pull-out bolt is inclined, the pull-out bolt properly contacts the retainer surface.

[0016]

Embodiments of the present invention will be described below with reference to the drawings. First, an embodiment of the present invention will be described with reference to FIGS.

In these figures, FIG. 7 and FIG.
The same elements as those described above are denoted by the same reference numerals to simplify the description. As a mechanism for adjusting the turning angle of the wheel, a screw is fitted to a predetermined position of the knuckle 3 and its head is located near a predetermined position on the outer peripheral surface of the boss 1A on which the kingpins at both ends of the axle main body are supported. And a turning bolt 6 formed at a predetermined position on the outer peripheral surface of the boss 1A so that the head of the stopper bolt 6 can be locked at a predetermined turning angle when the knuckle 3 turns. Projection 7,
Is the same as the conventional one.

In the present invention, the turning angle adjusting stopper bolts 6 are each provided with a boss 1A on the outer peripheral surface of its head.
The knuckle 3 is arranged along an axis inclined with respect to the central axis so as to be separated from the outer peripheral surface by a predetermined distance.

In this case, it is preferable that the surface 7A of the projection 7 on which the head of the stopper bolt 6 is locked is formed on a surface substantially perpendicular to the center axis of the stopper bolt 6 in the locked state. (See FIG. 2).

With this configuration, the head of the turning angle adjusting stopper bolt 6 faces a position near a predetermined position on the outer peripheral surface of the boss 1A through which the kingpins at both ends of the axle main body are supported. The turning bolt 6 for turning angle adjustment is arranged along an axis inclined with respect to the central axis of the knuckle 3, and the outer peripheral surface of its head is separated from the outer peripheral surface of the boss 1A by a predetermined distance.

In such a configuration, when adjusting the screw fitting position of the turning angle adjusting stopper bolt 6, the nut 14 for fixing the turning angle adjusting stopper bolt 6 at the adjusted screw fitting position is loosened or tightened. When the tip of a tool 15 such as a spectacle wrench (see FIG. 10) is passed through a gap between the head of the turning angle adjustment stopper bolt 6 and the outer peripheral surface of the boss 1A, the tool 15 such as a spectacle wrench is used. The tip is a boss 1A
Avoid interference with the outer peripheral surface, and use tools 1 such as eyeglass wrench
It is possible to easily adjust the screw-fitting position of the turning angle adjusting stopper bolt 6 without any trouble in using the turning angle 5, and to adjust the turning angle.

The above-mentioned "predetermined distance" between the outer peripheral surface of the head of the turning angle adjusting stopper bolt 6 and the outer peripheral surface of the boss portion 1A means that the tip of the tool 15 such as an eyeglass wrench is the boss portion 1A.
A Stopper bolt 6 for turning angle adjustment without interfering with the outer peripheral surface
Is a distance that can pass between the head of the boss and the outer peripheral surface of the boss 1A.

Further, according to this configuration, it is not necessary to cut the outer peripheral surface of the boss portion 1A to increase the gap between the head of the turning angle adjusting stopper bolt 6 and the outer peripheral surface of the boss portion 1A. There is no problem of a decrease in strength of the portion 1A.

Furthermore, if the surface 7A of the projection 7 on which the head of the stopper bolt 6 is locked is formed on a surface substantially perpendicular to the center axis of the stopper bolt 6 in the locked state, the stopper bolt 6 When the portion is locked to the protrusion 7, the head of the stopper bolt 6 is substantially perpendicular to the protrusion 7, so that the locking state of the both is properly performed, and the turning angle is properly controlled.

Incidentally, the turning bolt 6 for turning angle adjustment
Is arranged along an axis inclined with respect to the central axis of the knuckle 3, and when the head of the stopper bolt 6 is locked to the projection 7, the stopper bolt 6
Since the head does not contact the projection 7 at a substantially right angle and the locking state of the two is not properly performed, the turning angle is not properly regulated.

Here, as a method of pulling out the retainer 18 and the bearing 8 (only one of which is shown) from the knuckle 3, as shown in FIG. A method is employed in which the retainer 18 and the bearing 8 are pulled out from the knuckle 3 by being screwed while being pressed against the retainer 18.

In this case, the turning angle adjusting stopper bolt 6
Screw holes 12 are arranged along an axis that is inclined with respect to the central axis of the knuckle 3, so that the distal end surface of the extraction bolt 17 that is screwed into the screw hole 12 properly contacts the retainer 18 surface. Without the contact, the above-mentioned pulling-out action is not performed smoothly.

Therefore, in the present configuration, as shown in FIGS. 4 and 5, the surface 18A of the retainer 18 with which the distal end surface of the extraction bolt 17 abuts is a surface substantially perpendicular to the center axis of the extraction bolt 17. The bolt 17 is formed on a surface substantially parallel to the tip end surface.

In this case, instead of forming the entire surface of the retainer 18 on the above-described surface, the annular groove 1 formed on the surface of the retainer 18 on the side where the end surface of the drawing bolt 17 contacts.
8B is a surface substantially perpendicular to the center axis of the pull-out bolt 17 and substantially parallel to the tip end surface of the stopper bolt 17.
8A.

By providing such an annular groove 18B, the surface of the retainer 18 with which the distal end surface of the extraction bolt 17 abuts is a surface substantially perpendicular to the central axis of the extraction bolt 17 and the distal end surface of the extraction bolt 17. As a result, the surface of the retainer 18 against which the flange portion 3A of the knuckle 3 is applied can be maintained parallel to the surface of the flange portion 3A, so that the retainer 18 is properly fixed by the flange portion 3A. The pulling action by the pulling bolt 17 is performed smoothly.

[0031]

As described above, according to the first aspect of the present invention, when adjusting the screw fitting position of the turning angle adjusting stopper bolt, the tip of a tool such as a spectacle wrench has the outer peripheral surface of the boss portion. It is possible to easily adjust the screw fitting position of the turning angle adjustment stopper bolt without having to worry about using tools such as eyeglass wrench, and it is possible to adjust the turning angle. At the same time, there is no need to cut the outer peripheral surface of the boss portion to increase the gap between the head of the turning angle adjusting stopper bolt and the outer peripheral surface of the boss portion, and there is no problem of reduction in the strength of the boss portion.

According to the second aspect of the present invention, the surface on which the stopper bolt head of the projection is locked is formed on a surface substantially perpendicular to the center axis of the stopper bolt, so that the turning angle can be reduced. Regulations are properly enforced.

According to the third aspect of the present invention, the surface of the retainer contacting the leading end surface of the extraction bolt is a surface substantially perpendicular to the center axis of the stopper bolt and substantially parallel to the end surface of the extraction bolt. Since it is formed on the surface, even if the tip end surface of the extraction bolt is inclined, it appropriately contacts the retainer surface, and the extraction operation by the extraction bolt is performed smoothly.

[Brief description of the drawings]

FIG. 1 is a cross-sectional plan view illustrating an embodiment of a mounting structure of a turning bolt for adjusting a turning angle in an axle of a vehicle according to the present invention.

FIG. 2 is a plan view showing a locked state between a stopper bolt and a projection in the embodiment.

FIG. 3 is a cross-sectional plan view of another embodiment.

FIG. 4 is a perspective view of a retainer according to the embodiment.

FIG. 5 is a sectional view of the retainer according to the first embodiment;

FIG. 6 is a view showing the structure of a front axle, (A)
Is a plan view, (B) is a front view

FIG. 7 is a plan cross-sectional view illustrating an example of a mounting structure of a turning angle adjusting stopper bolt in an axle of a conventional vehicle.

FIG. 8 is a perspective view of a retainer according to the related art.

FIG. 9 is a cross-sectional view of the retainer of the above.

FIG. 10 is a perspective view illustrating a problem of the related art.

[Explanation of symbols]

 1A Boss 3 Knuckle 6 Turning Angle Adjustment Stopper Bolt 7 Projection 7A Surface 8 Bearing 15 Tool 17 Pullout Bolt 18 Retainer 18A Surface 18B Groove

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Ryoichi Watanabe F-term in Nissan Diesel Industry Co., Ltd. 1-chome, 1-chome, Ageo-shi, Saitama 3D034 BA06 BC03 BC16 BC26 BC28

Claims (3)

[Claims] A left and right knuckle connected to each other via a tie rod arm is connected to both ends of an axle body so as to be rotatable about a king pin, respectively, and the left and right knuckles are connected to each other by the movement of a steering arm fixed to one of the knuckles. A configuration in which a turning operation of a wheel is performed by a knuckle, wherein the knuckle is screw-fitted to a predetermined position, and a head of the knuckle has a predetermined position on an outer peripheral surface of a boss portion through which kingpins at both ends of the axle main body are supported. And a stopper bolt for turning angle adjustment, which is formed at a predetermined position on the outer peripheral surface of the boss portion. The stopper bolt head can be locked at a predetermined turning angle when the knuckle is turned. And a projection provided on the axle of the vehicle, wherein the turning angle adjusting stopper bolt is provided such that an outer peripheral surface of a head thereof is a predetermined distance from an outer peripheral surface of the boss portion. So that they are separated
A mounting structure for a turning angle adjusting stopper bolt in an axle of a vehicle, wherein the mounting bolt is arranged along an axis inclined with respect to a knuckle center axis. 2. A surface of the projection, on which the stopper bolt head is locked, is formed on a surface substantially orthogonal to a central axis of the stopper bolt in the locked state.
A mounting structure for a turning bolt for turning angle adjustment in an axle of a vehicle as described in the above. 3. The knuckle has a base and a tip end rotatably supported by a hub to which a wheel is attached via a bearing, and a bearing end face on the base side and a stopper bolt for adjusting a turning angle of the knuckle. A retainer is interposed between the fitting hole and a flange portion having a screw hole formed therein, wherein a pull-out bolt is screw-fitted into the screw hole, and a distal end portion thereof is pressed against the retainer. On the other hand, in a vehicle axle in which the retainer and the bearing are pulled out from the knuckle by screwing in, the surface of the retainer against which the tip end surface of the extraction bolt comes into contact is inclined with respect to the knuckle central axis of the extraction bolt. 3. A vehicle axle according to claim 1 or 2, wherein the surface is substantially perpendicular to the surface and substantially parallel to the surface of the end portion of the withdrawal bolt. Mounting structure countercurrent angle adjusting stopper bolt.