JP7136968B1 - wheel alignment device - Google Patents

Abstract

A wheel alignment adjusting device capable of handling a plurality of types of cam bolts with a single device is provided. A support base (2) and a moving part (3) for moving the support base (2) are provided, and the support base (2) has a plurality of adjustment rotating parts (11, 12) capable of rotating a cam (103) of a cam bolt (102A). , an adjusting arm member 8 having a tightening rotating portion 21 capable of rotating the lock nuts 104 of the front cam bolts 102A and 102B, and having a plurality of adjusting rotating portions 11 and 12, is rotated around the rotating shaft 8a. It is provided rotatably, and by rotating about the rotation shaft 8a, the adjusting rotating parts 11 and 12 to be used can be changed, and the mutual space between the adjusting arm member 8 and the tightening rotating part 21 is adjusted. Added ability to change distance. [Selection diagram] Fig. 1

Description

The present invention relates to a wheel alignment adjustment device.

Conventionally, as shown in FIG. 9, a cam bolt 102 is inserted through a bracket 101 provided on a vehicle body, and a cam 103 of the cam bolt 102 is rotated to adjust wheel alignment.

The wheel alignment adjustment device described in Patent Document 1 rotates the adjustment portion of the cam bolt 102 with an adjuster to rotate the cam 103 of the cam bolt 102 around the axis of the cam bolt 102, thereby adjusting the wheel alignment. After adjustment, the position of the cam 103 is fixed by tightening the lock nut 104 with a tightening machine to adjust the wheel alignment.

Japanese Utility Model No. 01-104867

The cam bolts used for adjusting the wheel alignment differ depending on the vehicle type, and multiple types of cam bolts are used. For example, the cam bolt 102A shown in FIG. 10 has an adjusting portion 110A and a lock nut 104 provided at both ends of the cam bolt 102A, and the cam bolt 102B shown in FIG. provided at one end.

The wheel alignment adjusting device described in Patent Document 1 can correspond to the cam bolt 102A shown in FIG. 10, but cannot correspond to the cam bolt 102B shown in FIG. On the other hand, the wheel alignment adjusting device 200 shown in FIGS. 12 and 13 can correspond to the cam bolt 102B shown in FIG. 11, but cannot correspond to the cam bolt 102A shown in FIG.

On the other hand, when manufacturing a vehicle, assembly, final adjustment, inspection, etc. are performed in a state where a plurality of vehicle types are mixed on one line or the like. If only one type of wheel alignment adjustment device is available, only vehicle models having cam bolts that are compatible with the wheel alignment device can be processed on the line where the device is installed, resulting in a problem of poor efficiency.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a wheel alignment adjusting device that is compatible with a plurality of types of cam bolts.

In order to solve the above problems, the present invention has a plurality of adjusting rotating parts capable of rotating the cam of the cam bolt and a tightening rotating part capable of rotating the lock nut of the cam bolt. death,
The cam is rotated by rotating the adjusting portion of the cam bolt by the adjusting rotating portion,
An adjustment arm member having at least a first adjustment rotation portion and a second adjustment rotation portion is provided so as to be rotatable about a rotation axis, and the adjustment rotation portion to be used can be adjusted by rotating about the rotation axis. to be able to change the
making it possible to change the distance between the adjusting arm member and the tightening rotating portion;
adjusting the wheel alignment of a vehicle having a cam bolt with the adjusting portion and the lock nut provided at both ends thereof, using the first adjustment rotating portion and the tightening rotating portion;
The second adjusting rotating portion and the tightening rotating portion are used to adjust the wheel alignment of a vehicle having a cam bolt with the adjusting portion and the lock nut provided at one end thereof. is.

In addition, by rotating a tightening side arm member having a plurality of tightening rotating parts around its rotation axis, the tightening rotating part to be used can be replaced. may be made possible.
Further, it has a support base and a moving part for moving the support base,
The support base may be provided with the adjusting rotating portion and the tightening rotating portion.

The present invention has a plurality of adjusting rotating parts capable of rotating a cam of a cam bolt, a tightening rotating part capable of rotating a lock nut of the cam bolt, and a plurality of adjusting rotating parts. An adjusting arm member is provided rotatably about the rotation axis, and by rotating about the rotation axis, the adjusting rotating part to be used can be changed, and the adjusting arm member and the tightening rotation By making it possible to change the distance between the moving parts, one wheel alignment adjusting device can be used for a plurality of types of cam bolts.

1 is a front view of a wheel alignment adjusting device according to Embodiment 1 of the present invention; FIG. The figure which looked at the tightening machine used for Example 1 of this invention from the inside. The figure which looked at the adjustment machine used for Example 1 of this invention from the inside. FIG. 2 is a front view of a state in which the adjusting arm member is rotated from the state in FIG. 1 and the tightening machine and the adjusting machine are brought close to each other; The figure of the state which rotated the adjustment arm member from the state of FIG. FIG. 4 is a partial cross-sectional view showing the relationship between the second adjusting rotating portion, the tightening rotating portion, and the cam bolt of the adjuster used in Example 1 of the present invention; FIG. 7 is a partial cross-sectional view of a state in which the tightening side socket of the tightening rotating portion is inserted into the loose fitting portion of the second adjustment side socket of the second adjusting rotating portion from the state of FIG. 6 ; FIG. 8 is a partial cross-sectional view of a state in which a cam bolt is attached from the state in FIG. 7; FIG. 4 is a diagram for explaining the relationship between the vehicle body and cam bolts; The figure which shows an example of a cam bolt. The figure which shows the other example of a cam bolt. 1 is a schematic diagram of a conventional wheel alignment adjustment device; FIG. FIG. 13 is a vertical cross-sectional view of a main part of FIG. 12;

Embodiments of the present invention will be described based on examples shown in the drawings.

[Example 1]
FIG. 1 shows a wheel alignment adjusting device 1 of Example 1 of the present invention.

A wheel alignment adjustment device 1 has a support base 2 . The support base 2 includes an adjuster 5 and a tightening device 6. The support base 2 can be moved to any position by a first moving part 3 such as a robot arm, and can be rotated around a rotation axis (not shown). It can be rotated, and the positions of the adjusting device 5 and the tightening device 6 can be reversed to the left and right of FIG. 1, for example.

Further, the adjusting machine 5 and the tightening machine 6 can be moved vertically and horizontally with respect to the support base 2 by moving means (not shown).

As shown in FIGS. 1 and 4, the adjuster 5 can be moved in the left-right direction in FIGS. 1 and 4 by a second moving part 7 such as a cylinder. The distance between the rotating parts 21 can be changed.

The adjusting machine 5 has an adjusting arm member 8, and as shown in FIGS. 1 to 5, the adjusting arm member 8 can be rotated about a rotating shaft 8a by a rotation driving section 16. . The adjusting arm member 8 has a first adjusting mounting arm 9 and a second adjusting mounting arm 10, and the axial centers of the first adjusting mounting arm 9 and the second adjusting mounting arm 10 are formed to be the same. It is

A first adjustment rotating portion 11 is provided at the tip portion of the first adjustment mounting arm 9 . The first adjustment rotation part 11 has an adjustment side socket 13, and the first adjustment side socket 13 is rotated clockwise with respect to the adjustment mounting arm 9 by an adjustment rotation drive part 15 via a gear train (not shown). It can rotate counterclockwise.

As shown in FIGS. 1, 3 and 5, the first adjusting socket 13 has a first adjusting engaging portion 13a which opens on the tightening machine 6 side. The first adjustment-side engaging portion 13a can be fitted to the outer surface of the head forming the adjusting portion 110A of the cam bolt 102A, and the first adjusting-side engaging portion 13a engages with the adjusting portion 110A of the cam bolt 102A. In this state, by rotating the first adjustment side socket 13 by the adjustment rotation driving portion 15, the cam 103 of the cam bolt 102A is rotated clockwise and counterclockwise about the shaft center of the cam bolt 102 by a predetermined amount. It can be moved.

As shown in FIGS. 1 and 3, the distal end of the second adjusting mounting arm 10 is provided with a second adjusting rotating portion 12. As shown in FIGS. The second adjustment rotation unit 12 has a second adjustment socket 14. The second adjustment socket 14 has a gear provided on its outer peripheral surface that is driven by the adjustment rotation drive unit 15 via a gear train (not shown). , the second adjustment-side socket 14 can be rotated clockwise and counterclockwise with respect to the second adjustment mounting arm 10 by the adjustment rotation driving section 15. It can be rotated.

As shown in FIG. 5, the second adjusting socket 14 is formed with a through hole 14a penetrating in a direction parallel to the rotating shaft 8a of the adjusting arm member 8. As shown in FIG. On the inner surface of the through hole 14a opposite to the tightening device 6 side, as shown in FIG. A portion 14b is formed.

As shown in FIG. 8, in a state in which the second adjustment-side engaging portion 14b and the adjustment portion 110B of the cam bolt 102B are engaged, the second adjustment-side socket 14 is rotated by the adjustment rotation driving portion 15, whereby the cam bolt The cam 103 of 102B can be rotated by a predetermined amount clockwise and counterclockwise around the shaft center of the cam bolt 102B.

As shown in FIG. 6, a cylindrical loose fitting portion 14c is formed on the inner surface of the through hole 14a on the tightening device 6 side. The inner diameter of the loose fitting portion 14c is set larger than the outer diameter of the tightening side socket 22, which will be described later.

As shown in FIGS. 1, 2, and 4 to 8, the tightening machine 6 has a tightening rotating portion 21, and the tightening rotating portion 21 is provided with a body portion 21a of the tightening rotating portion 21. It has a tightening socket 22 at least partially protruding toward the adjuster 5 side. The tightening side socket 22 can be rotated clockwise and counterclockwise with respect to the body portion 21a by a tightening rotation driving portion 25 via a gear train (not shown).

The tightening-side socket 22 has a tightening-side engaging portion 22a that opens on the adjuster 5 side, and the tightening-side engaging portion 22a can be fitted to the outer surface of the locknut 104 of the cam bolts 102A and 102B. With the tightening side engaging portion 22a engaged with the lock nut 104 of the cam bolt 102A, 102B, the tightening rotation driving portion 25 rotates the tightening side socket 22 to rotate the cam bolt 102A, 102B. The lock nut 104 can be rotated about the axial center of the cam bolts 102A and 102B to tighten the lock nut 104 with a predetermined tightening force (torque).

Next, a method for adjusting wheel alignment using the cam bolt 102A will be described.

As shown in FIG. 9, an arm 105 having an end connected to a wheel is provided between a pair of brackets 101, 101 on the suspension member side attached to a vehicle body (not shown).

As shown in FIG. 9, the bracket 101 is formed with an elongated insertion hole 101a, and a cam bolt 102A is inserted through the insertion hole 101a so that both ends of the cam bolt 102A protrude outward from the insertion hole 101a. ing.

A pair of cams 103, 103 are provided at both ends of the cam bolt 102A in the axial direction, and the cam 103 is positioned outside each bracket 101. One cam 103 is fixed to the shaft portion 106 of the cam bolt 102A. Outside the one cam 103, an adjustment portion 110A having a hexagonal head portion is fixed to the shaft portion 106. As shown in FIG.

The other cam 103 can move in the axial direction of the shaft portion 106 without rotating in the circumferential direction with respect to the shaft portion 106 . The shape of one cam 103 and the shape of the other cam 103 with respect to the shaft portion 106 are formed to be substantially the same. When the adjustment portion 110A is rotated, the cam bolt 102A as a whole rotates about the shaft center of the shaft portion 106, so that both the cams 103, 103 can rotate about the shaft center of the shaft portion 106. It has become.

Further, as shown in FIG. 9, the cam 103 is arranged between a pair of cam receiving portions 101b, 101b provided on the bracket 101. As shown in FIG.

A male screw is formed at least at the tip of the shaft portion 106, and a lock nut 104 is screwed onto this male screw.

By rotating the adjustment portion 110A clockwise or counterclockwise to rotate the cam 103, the cam bolt 102A moves in the insertion hole 101a, thereby changing the position of the arm 105 with respect to the bracket 101. Wheel alignment (toe angle, camber angle, caster angle, etc.) can be changed and adjusted.

Next, a method for adjusting the wheel alignment of the vehicle body having the cam bolt 102A using the wheel alignment adjusting device 1 will be described.

First, as shown in FIG. 1, the adjustment arm member 8 is rotated about its rotation axis 8a by the rotation drive section 16 so that the first adjustment rotation section 11 is at a predetermined position (upper side in FIG. 1). Rotate. In addition, the adjuster 5 is moved by the second moving part 7 so that the distance between the first adjuster socket 13 of the adjuster 5 and the tightening socket 22 of the tightener 6 is larger than the length of the cam bolt 102A in the axial direction. make it longer.

Next, the first moving part 3 is moved so that the adjusting machine 5 is positioned outside the adjusting part 110A and the tightening machine 6 is positioned outside the lock nut 104 .

Next, the adjuster 5 is moved toward the tightening device 6 by the second moving part 7, and the adjuster 110A of the cam bolt 102A is fitted into the first adjuster-side engaging part 13a of the first adjuster-side socket 13 of the adjuster 5. match. Also, the lock nut 104 is fitted to the tightening side engaging portion 22 a of the tightening side socket 22 of the tightening machine 6 .

Next, the adjustment rotation drive unit 15 rotates the first adjustment side socket 13 to rotate the cam 103 of the cam bolt 102A, and the wheel alignment (toe angle, camber angle, caster angle) is detected based on a sensor (not shown) or the like. etc.) are changed and adjusted so that they become predetermined values.

Next, the tightening rotation drive unit 25 rotates the tightening side socket 22 to tighten the lock nut 104 to a predetermined tightening force, thereby fixing the position of the cam 103 .

Next, the wheel alignment adjustment device 1 is removed from the cam bolt 102A and retracted from the vehicle body by the first moving part 3 and the second moving part 7, and the adjustment of the wheel alignment is completed.

Next, a method for adjusting wheel alignment using the cam bolt 102B will be described.

The cam bolt 102B is provided with a pair of cams 103, 103 as shown in FIGS. One cam 103 is fixed to the shaft portion 107 of the cam bolt 102B.

The other cam 103 can move in the axial direction of the shaft portion 107 without rotating in the circumferential direction with respect to the shaft portion 107 . Outside the other cam 103 , an adjusting portion 110</b>B having a hexagonal head portion is formed integrally with the other cam 103 . When the adjustment portion 110B is rotated, the cam bolt 102B as a whole rotates about its axis, and both cams 103, 103 can rotate about the axis of the shaft portion 107. .

A male screw is formed at least at the tip of the shaft portion 107, and the lock nut 104 is screwed onto this male screw.

Since the structure of the cam bolt 102B other than the above is the same as that of the cam bolt 102A, description thereof will be omitted.

Next, a method of adjusting the wheel alignment of the vehicle body having the cam bolt 102B using the wheel alignment adjusting device 1 will be described.

First, for example, from the state shown in FIGS. 1 and 2, the adjusting arm member 8 is rotated around its rotation shaft 8a, and as shown in FIG. 1), the adjustment rotation portion to be used is changed from the first adjustment rotation portion 11 to the second adjustment rotation portion 12, and the adjustment rotation portion to be used is changed to the second adjustment rotation portion. Section 12. Further, the adjuster 5 is moved toward the tightening device 6 by the second moving part 7, and as shown in FIG. At least part of the tightening side socket 22 of the tightening rotating portion 21, in this embodiment, the entire tightening side socket 22 projecting from the body portion 21a to the adjuster 5 side is inserted into 14c.

Next, as shown in FIG. 8, the cam bolt 102B is moved from the lock nut 104 side of the cam bolt 102B into the through hole 14a of the second adjustment socket 14 by the first moving part 3 and the like. It is inserted from the joining portion 14b side.

As a result, as shown in FIG. 8, the lock nut 104 and the tightening-side engaging portion 22a of the tightening-side socket 22 of the tightening device 6 are fitted together, and the adjusting portion 110B of the cam bolt 102B and the adjusting device 5 The second adjustment-side engaging portion 14b of the second adjustment-side socket 14 is fitted.

Next, the adjustment rotation drive unit 15 rotates the second adjustment side socket 14 to rotate the cam 103 of the cam bolt 102B. etc.) are changed and adjusted so that they become predetermined values.

Next, the tightening rotation drive unit 25 rotates the tightening side socket 22 to tighten the lock nut 104 to a predetermined tightening force, thereby fixing the position of the cam 103 . Since the tightening-side socket 22 of the tightening rotating portion 21 is loosely inserted into the loose fitting portion 14c of the second adjusting-side socket 14, the second adjusting-rotating portion 12 does not interfere with the lock. Tightening of the nut 104 can be performed.

Next, the wheel alignment adjustment device 1 is removed from the cam bolt 102B and retracted from the vehicle body by the first moving unit 3 or the like, and the adjustment of the wheel alignment is completed.

With the above structure, the wheel alignment adjustment device 1 can adjust the wheel alignment of the vehicle body having both the cam bolt 102A and the cam bolt 102B with a single device, and the assembly, final adjustment, inspection, etc. of the vehicle body can be performed by a conventional device. can be done efficiently compared to

Further, by rotating the adjusting arm member 8 around the rotating shaft 8a, the first adjusting rotating portion 11 and the second adjusting rotating portion 12 to be used are exchanged, and the second moving portion 7 adjusts Since switching between the cam bolt 102A and the cam bolt 102B is possible only by moving the machine 5, it is possible to respond to the change in a short time, and the structure is simple, so that the manufacturing cost can be kept low.

Since the tightening side socket 22 of the tightening rotation section 21 is loosely inserted into the loose fitting section 14c of the second adjustment side socket 14, the gear train for rotating the tightening rotation section 21 is The thickness of the gear of the gear can be sufficiently secured, the strength of the gear can be secured, and the space between the second adjustment side socket 14 and the tightening rotating part 21 can be made compact, and wheel alignment can be achieved. can be suppressed from interfering with auxiliary equipment of the vehicle body, etc., at the time of adjustment.

12 and 13, the conventional wheel alignment adjusting device 200 shown in FIGS. It has a tightening device 202 that fixes the position of the cam 103 . The adjuster 201, as shown in FIG. 13, has a tubular adjustment engagement portion 203 that engages with the outer surface of the adjustment portion 110B. The adjustment engaging portion 203 can rotate clockwise and counterclockwise by means of gears positioned on its outer side.

The tightening machine 202 has a rod-shaped connecting member 204 provided inside the cylindrical adjusting engaging portion 203 so as to be rotatable around the axis of the adjusting engaging portion 203. The connecting member 204 A first engaging portion 205 is provided for engaging the lock nut 104 and the other end has a second engaging portion 207 for engaging a tightening socket 206 . By rotating the tightening socket 206, the lock nut 104 can be tightened.

As described above, the conventional wheel alignment adjusting device 200 has the connecting member 204 disposed inside the cylindrical adjustment engaging portion 203 , and one end of the connecting member 204 is provided with the first lock nut 104 that engages with the lock nut 104 . By forming a second engagement 207 that engages with the tightening socket 206 at the other end of the engagement portion 205, the adjustment portion 110B provided at one end of the cam bolt 102B and the lock nut 104 are rotated. There is a problem that the structure of the device is complicated, the volume it occupies is large, and it cannot be used when there is no space for inserting this device into the vehicle body.

On the other hand, according to the present invention, the tightening socket 22 of the tightening rotating portion 21 is loosely inserted into the loose fitting portion 14c of the second adjustment socket 14, so that one end of the cam bolt 102B is Compared to the wheel alignment adjusting device 200, the structure of the adjusting portion 110B provided in the portion and the portion for rotating the lock nut 104 can be made compact by reducing the number of parts. As a result, the volume occupied by this portion is reduced, and it can be used even when the space for inserting this portion of the device to the vehicle body is smaller than that of the wheel alignment adjustment device 200, and the wheel alignment adjustment device can be used for a wider range of vehicle types. The adjustment device 1 can be used to adjust wheel alignment.

[Example 2]
In the first embodiment described above, the adjuster 5 is provided with an adjusting arm member 8 having two adjusting mounting arms consisting of a first adjusting mounting arm 9 and a second adjusting mounting arm 10, each adjusting mounting arm 9 (10) is provided with an adjusting rotating portion 11 (12), but the adjusting arm member is provided with three or more adjusting mounting arms, and each adjusting mounting arm is provided with one adjusting rotating portion. may

The adjustment pivot is formed so as to be able to engage and pivot with the adjustment section of the cam bolt attached to the vehicle body.

Since other structures are the same as those of the first embodiment, description thereof is omitted.

Also in the second embodiment, the same effects as in the first embodiment are obtained.

[Example 3]
In Embodiments 1 and 2, the tightening device 6 has only one tightening rotating portion 21, but similarly to the adjusting arm member of the adjusting device 5 in Embodiments 1 and 2, the tightening arm member A plurality of tightening mounting arms are provided in each of the tightening mounting arms, and each tightening mounting arm is provided with one tightening rotating portion. You may enable it to change the tightening rotation part which carries out.

The adjustment arm member of the adjuster 5 may be provided with a plurality of adjustment rotation portions or only one adjustment rotation portion depending on the shape of the cam bolt to be adjusted.

Each tightening rotating part is formed so as to be able to rotate different shaped lock nuts.

Since other structures are the same as those of the first and second embodiments, description thereof is omitted.

Also in the third embodiment, the same effect as in the first and second embodiments can be obtained.

REFERENCE SIGNS LIST 1 wheel alignment adjusting device 2 support base 3 moving part 8 adjusting arm member 8a rotating shaft 11, 12 adjusting rotating part 21 tightening rotating part 102A, 102B cam bolt 103 cam 104 lock nut

Claims (3)

having a plurality of adjusting rotating parts capable of rotating the cam of the cam bolt and a tightening rotating part capable of rotating the lock nut of the cam bolt,
The cam is rotated by rotating the adjusting portion of the cam bolt by the adjusting rotating portion,
An adjustment arm member having at least a first adjustment rotation portion and a second adjustment rotation portion is provided so as to be rotatable about a rotation axis, and the adjustment rotation portion to be used can be adjusted by rotating about the rotation axis. to be able to change the
making it possible to change the distance between the adjusting arm member and the tightening rotating portion;
adjusting the wheel alignment of a vehicle having a cam bolt with the adjusting portion and the lock nut provided at both ends thereof, using the first adjustment rotating portion and the tightening rotating portion;
A wheel using the second adjusting rotating portion and the tightening rotating portion to adjust the wheel alignment of a vehicle having a cam bolt having the adjusting portion and the lock nut provided at one end thereof. Alignment adjustment device. It has a plurality of tightening rotating parts, and by rotating the tightening side arm member having a plurality of tightening rotating parts around its rotation axis, the used tightening rotating part can be replaced. 2. The wheel alignment adjusting device according to claim 1, wherein the wheel alignment adjusting device is configured as follows. having a support base and a moving part for moving the support base,
3. The wheel alignment adjusting device according to claim 1, wherein said support base is provided with said adjusting rotating portion and said tightening rotating portion.

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