JP3643257B2 - Mounting structure for turning angle adjustment stopper bolt in vehicle axle - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a mounting structure for a turning angle adjusting stopper bolt in an axle of a vehicle, and more particularly to a technique for improving the usability of a tool for attaching / detaching a turning angle adjusting stopper bolt.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, a vehicle axle, for example, a front axle, as shown in FIG. 6, left and right knuckles 3 (only shown on the right) are connected to both ends of an axle body 1 via tie rod arms 2, respectively. And a turning operation of the wheel by the knuckle 3 is performed by the movement of the steering arm 5 fixed to one knuckle 3.
[0003]
In such a front axle, as shown in FIG. 7, as a mechanism for adjusting the turning angle of the wheel, a screw is fitted into a predetermined position of the knuckle 3, and the king pins 4 at both ends of the axle body 1 are connected to the head. A turning angle adjusting stopper bolt 6 facing a position near a predetermined position on the outer peripheral surface of the boss portion 1A to be supported by the penetration, and formed at a predetermined position on the outer peripheral surface of the boss portion 1A, when the knuckle 3 is turned. A protrusion 7 that can lock the stopper bolt 6 head at a predetermined turning angle, and adjusting the screw fitting position of the turning angle adjusting stopper bolt 6. There is one in which the turning angle is adjusted by adjusting the position with respect to.
[0004]
The knuckle 3 has a base 11 and a front end supported by a hub 11 to which a wheel 10 is attached via bearings 8 and 9 so as to be freely rotatable. For adjusting the turning angle of the knuckle 3 and the end face of the bearing 8 on the base side. A retainer 13 (see FIGS. 8 and 9) is interposed between the flange portion 3A in which the screw hole 12 into which the stopper bolt 6 is screwed is formed.
[0005]
[Problems to be solved by the invention]
However, in such a conventional configuration, the head of the turning angle adjusting stopper bolt 6 faces the predetermined position on the outer peripheral surface of the boss portion 1A, and the turning angle adjusting stopper bolt 6 has a knuckle. Since they are arranged along an axis parallel to the three central axes, the outer peripheral surface of the head is very close to the outer peripheral surface of the boss portion 1A.
[0006]
In such a configuration, when adjusting the screw fitting position of the turning angle adjusting stopper bolt 6, as shown in FIG. 10, the nut 14 for fixing the turning angle adjusting stopper bolt 6 at the adjusted screw fitting position. the tip of the tool 15, such as a wrench to Ri tightened or loosened, it is necessary to pass a narrow gap between the head and the boss portion 1A the outer peripheral surface of the turning angle adjusting stopper bolt 6, in this case The tip of the tool 15 such as an eyeglass wrench cannot avoid interference with the outer peripheral surface of the boss 1A, and it is difficult to use the tool 15 such as an eyeglass wrench. You can not adjust the fitting position, there is a problem, which said that it is impossible to adjust the turning angle.
[0007]
In order to solve such a problem, as shown in FIG. 10, the outer peripheral surface of the boss portion 1A is shaved (the shaving portion 16), and the gap between the head of the turning angle adjusting stopper bolt 6 and the outer peripheral surface of the boss portion 1A. However, in this case, the thickness of the boss portion 1A is reduced, and the strength of the boss portion 1A is reduced, which cannot be adopted.
[0008]
The present invention has been made in view of the conventional situation as described above.By improving the mounting structure of the turning angle adjusting stopper bolt, the screw fitting position of the turning angle adjusting stopper bolt can be easily adjusted. It is an object of the present invention to provide a mounting structure for a turning bolt for adjusting a turning angle in a vehicle axle which has an advantage that the turning angle can be easily adjusted and there is no problem such as a decrease in strength of the boss.
[0009]
[Means for Solving the Problems]
In order to achieve the above object, the invention according to claim 1 is characterized in that the left and right knuckles connected to each other through the tie rod arms are connected to both ends of the axle body so as to be rotatable about the king pin. The wheel is turned by the knuckle by the movement of the steering arm fixed to the knuckle. The knuckle is screwed into a predetermined position of the knuckle, and the head is penetrated by the 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 to be supported and a predetermined turning angle formed at a predetermined position on the outer peripheral surface of the boss portion during the turning operation of the knuckle. And a protrusion that can be locked to the stopper bolt head, and the turning angle adjusting stopper bolt is connected to the head of the axle, respectively. As the circumferential surface a predetermined distance apart from the boss portion outer peripheral surfaces, as well as arranged along an axis inclined with respect to the knuckle central axis, the knuckle, the wheel via the bearing and the base and tip The hub to be mounted is supported for free rotation, and a retainer is interposed between the bearing end surface on the base side and a flange part with a screw hole into which a stopper bolt for adjusting the turning angle of the knuckle is screwed. In the vehicle axle in which the retainer and the bearing are pulled out from the knuckle by screwing the bolt into the screw hole and pressing the tip of the bolt against the retainer, the leading end of the pulling bolt of the retainer The surface with which the surface abuts is a surface that is substantially perpendicular to the central axis that is inclined with respect to the central axis of the knuckle of the extraction bolt and that is substantially the same as the front surface of the extraction bolt. Characterized by being formed in a row plane.
[0010]
The invention according to claim 2
The surface on which the stopper bolt head portion of the protrusion is locked is formed on a surface substantially orthogonal to the central axis of the stopper bolt in the locked state.
[0012]
Next, the operation of the present invention will be described.
In the invention according to claim 1, the head of the turning angle adjusting stopper bolt faces the position near the predetermined position on the outer peripheral surface of the boss portion through which the king pins at both ends of the axle body are supported. The adjustment stopper bolt is disposed along an axis inclined with respect to the knuckle central axis, and the outer peripheral surface of the head is separated from the outer peripheral surface of the boss part by a predetermined distance.
[0013]
In such a configuration, at the time of adjustment of the screw fitting position of the turning angle adjusting stopper bolt, glasses wrench to Ri tightening or loosening the nut screwed fitting position adjusting the turning angle adjusting stopper bolt When the tip of the tool is passed through the gap between the head of the turning angle adjusting stopper bolt and the outer peripheral surface of the boss, the tip of the tool such as a spectacle wrench can be prevented from interfering with the outer peripheral surface of the boss. In addition, it is possible to easily adjust the screw fitting position of the turning angle adjusting stopper bolt without difficulty in using a tool such as a spectacle wrench, and the turning angle can be adjusted. Further, by forming the surface with which the pull-out bolt tip surface of the retainer abuts on a surface substantially perpendicular to the central axis of the pull-out bolt and substantially parallel to the pull-out bolt tip surface, By arranging along the axis inclined with respect to the knuckle central axis, even if the tip end surface of the pull-out bolt is inclined, it properly contacts the retainer surface.
[0014]
In the invention according to claim 2, if the surface on which the stopper bolt head portion of the protrusion is locked is formed on a surface substantially orthogonal to the central axis of the stopper bolt in the locked state, the stopper bolt head portion is When locked to the protruding portion, the stopper bolt head hits the protruding portion at a substantially right angle, the locking state of both is made appropriate, and the turning angle is properly controlled.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
First, an embodiment of the present invention will be described with reference to FIGS.
[0017]
In these drawings, the same elements as those in FIGS. 7 and 10 are denoted by the same reference numerals to simplify the description.
As a mechanism for adjusting the turning angle of the wheel, a position near the predetermined position on the outer peripheral surface of the boss portion 1A, which is screwed into a predetermined position of the knuckle 3 and whose head is supported by the king pins at both ends of the axle body. Is formed at a predetermined position on the outer peripheral surface of the boss portion 1A so that the head of the stopper bolt 6 can be locked at a predetermined turning angle when the knuckle 3 is turned. The structure in which the projections 7 are provided is the same as that of the conventional art.
[0018]
In the present invention, the turning angle adjusting stopper bolt 6 is moved along an axis inclined with respect to the central axis of the knuckle 3 so that the outer peripheral surface of the head is separated from the outer peripheral surface of the boss portion 1A by a predetermined distance. I try to arrange it.
[0019]
In this case, the surface 7A on which the head of the stopper bolt 6 of the protrusion 7 is locked is preferably formed on a surface substantially orthogonal to the central axis of the stopper bolt 6 in the locked state (see FIG. 2). ).
[0020]
According to this configuration, although the head of the turning angle adjusting stopper bolt 6 faces the position near the predetermined position on the outer peripheral surface of the boss portion 1A through which the king pins at both ends of the axle body are supported, the turning angle The adjustment stopper bolt 6 is disposed along an axis inclined with respect to the central axis of the knuckle 3, and the outer peripheral surface of the head is separated from the outer peripheral surface of the boss part 1 </ b> A by a predetermined distance.
[0021]
In such a configuration, at the time of adjustment of the screw fitting position of the turning angle adjusting stopper bolt 6 and Ri tightened or loosened nut 14 screwed fitting position adjusting the turning angle adjusting stopper bolt 6 When passing the tip of the tool 15 such as a spectacle wrench (see FIG. 10) through the gap between the head of the turning angle adjusting stopper bolt 6 and the outer peripheral surface of the boss 1A, the tip of the tool 15 such as a spectacle wrench Can be prevented from interfering with the outer peripheral surface of the boss portion 1A, and the screw fitting position of the turning angle adjusting stopper bolt 6 can be easily adjusted without difficulty in using the tool 15 such as a spectacle wrench. The turning angle can be adjusted.
[0022]
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 is the tip of the tool 15 such as a spectacle wrench and the outer peripheral surface of the boss portion 1A. This is the distance that can pass between the head of the turning angle adjusting stopper bolt 6 and the outer peripheral surface of the boss portion 1A without interference.
[0023]
Further, according to such a configuration, it is not necessary to scrape 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 strength reduction.
[0024]
Furthermore, if the surface 7A on which the stopper bolt 6 head of the protrusion 7 is locked is formed on a surface substantially orthogonal to the central axis of the stopper bolt 6 in the locked state, the stopper bolt 6 head protrudes. When locked to the portion 7, the stopper bolt 6 head hits the projection 7 at a substantially right angle so that the locked state of both is made appropriate and the turning angle is properly controlled.
[0025]
Incidentally, when the turning angle adjusting stopper bolt 6 is arranged along the axis inclined with respect to the central axis of the knuckle 3, the stopper bolt 6 head is locked to the protruding portion 7 in the conventional protruding portion 7. When this is done, the head of the stopper bolt 6 does not hit the projection 7 at a substantially right angle, and the locking state of the two is not properly performed, so that the turning angle is not properly regulated.
[0026]
Here, as a method of pulling out the retainer 18 and the bearing 8 (only one is shown) from the knuckle 3, as shown in FIG. 3, a pull-out bolt 17 is screw-fitted into the screw hole 12, and the tip end portion of the retainer 18 is fitted. The retainer 18 and the bearing 8 are pulled out from the knuckle 3 by being screwed in while being pressed.
[0027]
In this case, by disposing the screw hole 12 for the turning angle adjusting stopper bolt 6 along the axis inclined with respect to the central axis of the knuckle 3, the tip of the extraction bolt 17 screwed into the screw hole 12. The part surface does not properly abut on the retainer 18 surface, and the above-described extraction operation is not performed smoothly.
[0028]
Accordingly, in this configuration, as shown in FIGS. 4 and 5, the surface 18A with which the tip end surface of the extraction bolt 17 of the retainer 18 abuts is a surface substantially perpendicular to the central axis of the extraction bolt 17 and the extraction bolt 17. The bolt 17 is formed on a surface substantially parallel to the tip end surface.
[0029]
In this case, the entire surface of the retainer 18 is not formed on the above-described surface, but the inner surface of the annular groove 18B formed on the surface of the retainer 18 on the side where the tip end surface of the extraction bolt 17 contacts is the central axis of the extraction bolt 17 A surface 18A that is substantially perpendicular to the front surface of the stopper bolt 17 and substantially parallel to the tip end surface.
[0030]
The annular groove 18B is provided, and the surface with which the end surface of the extraction bolt 17 of the retainer 18 abuts is a surface substantially perpendicular to the central axis of the extraction bolt 17 and substantially parallel to the front surface of the extraction bolt. As a result of forming on the flat surface 18A, the surface of the retainer 18 against which the flange portion 3A of the knuckle 3 abuts can be maintained parallel to the surface of the flange portion 3A, and the retainer 18 can be properly pressed and fixed by the flange portion 3A. The pulling-out action by the pull-out bolt 17 is smoothly performed.
[0031]
【The invention's effect】
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 interferes with the outer peripheral surface of the boss portion. The screw fitting position of the turning angle adjusting stopper bolt can be easily adjusted without any difficulty in using a tool such as a spectacle wrench, and the turning angle can be adjusted and the boss part can be adjusted. There is no need 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 a decrease in strength of the boss portion. Also, the surface with which the retainer pull-out bolt tip surface abuts is formed on a surface that is substantially perpendicular to the center axis of the stopper bolt and substantially parallel to the pull-out bolt tip surface. Even if the tip end face of the steel plate is inclined, it can be properly brought into contact with the retainer surface and the drawing action by the drawing bolt can be smoothly performed.
[0032]
According to the invention of claim 2, since the surface on which the stopper bolt head portion of the protrusion is locked is formed on a surface substantially orthogonal to the central axis of the stopper bolt, the turning angle is properly regulated. To be made.
[Brief description of the drawings]
FIG. 1 is a cross-sectional plan view illustrating an embodiment of a mounting structure for a turning angle adjusting stopper bolt in a vehicle axle according to the present invention. FIG. 2 illustrates a locking state between a stopper bolt and a protrusion in the above embodiment. FIG. 3 is a plan sectional view of another embodiment. FIG. 4 is a perspective view of a retainer in the embodiment. FIG. 5 is a sectional view of the retainer. FIG. 6 is a diagram showing a structure of a front axle. FIGS. 7A and 7B are plan views, and FIG. 7B is a front view. FIG. 7 is a plan sectional view illustrating an example of a mounting structure of a conventional turning angle adjusting stopper bolt in an axle of a vehicle. 9 is a perspective view of the retainer. FIG. 10 is a cross-sectional view of the retainer. FIG. 10 is a perspective view illustrating the problems of the prior art.
1A Boss 3 Knuckle 6 Turning angle adjusting stopper bolt 7 Protrusion 7A Surface 8 Bearing 15 Tool 17 Pull-out bolt 18 Retainer 18A Surface 18B Groove

Claims (2)

Left and right knuckles connected to each other of the axle body via tie rod arms are connected to each other so as to be rotatable about a kingpin, and the steering of the steering arm fixed to one knuckle causes the wheel to turn by the knuckle. The operation is performed, and is screwed into a predetermined position of the knuckle, and its head faces a position in the vicinity of the predetermined position on the outer peripheral surface of the boss portion through which the king pins at both ends of the axle body are supported. A turning bolt for adjusting the turning angle, and a protrusion formed at a predetermined position on the outer peripheral surface of the boss portion and capable of locking the stopper bolt head at a predetermined turning angle when turning the knuckle. In the vehicle axle provided,
The turning angle adjusting stopper bolt is disposed along an axis inclined with respect to the knuckle center axis so that the outer peripheral surface of the head is spaced apart from the outer peripheral surface of the boss part by a predetermined distance ,
The knuckle is a screw in which a hub to which a wheel is attached via a bearing at its base and tip is rotatably supported, and a bearing end surface on the base side and a stopper bolt for adjusting the turning angle of the knuckle are screw-fitted. A retainer is interposed between the flange portion in which the hole is formed, and the retainer and the bearing are knuckled by screwing a pull-out bolt into the screw hole while pressing the tip portion against the retainer. In the vehicle axle that is pulled out from the surface, the surface of the retainer with which the pull-out bolt tip end surface abuts is a surface that is substantially perpendicular to the central axis inclined with respect to the knuckle central axis of the pull-out bolt, and the pull-out bolt A structure for mounting a turning bolt for adjusting a turning angle in an axle of a vehicle, wherein the mounting structure is formed on a surface substantially parallel to a front end surface .   2. The vehicle axle according to claim 1, wherein a surface on which the stopper bolt head portion of the protruding portion is locked is formed on a surface substantially orthogonal to the central axis of the stopper bolt in the locked state. Mounting structure for turning angle adjustment stopper bolt.

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