JP2010018172A - Wheel alignment adjusting device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To optionally adjust wheel alignment of a vehicle independently. <P>SOLUTION: A forward and rearward adjustment body 20 connected to a vehicle body with a knuckle 10 through a forward and rearward adjustment hole 11 extending in a forward or rearward direction and moving along the forward and rearward adjustment hole 11 and a right and left adjustment body 30 connected to the vehicle body with the forward and rearward adjustment body 20 through a right and left adjustment hole 21 extending in a right and left direction and moving along the right and left adjustment hole 21 can be moved independently by tightening and loosening of a bolt 23 and a bolt 33 as fastening means for the connection, and a connecting part 5 equipped with the right and left adjustment body 30 connected to a part of the vehicle body is moved by the movement, and thereby, it is possible to adjust the wheel alignment. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a vehicle suspension device, and more particularly to a variable device that enables adjustment of wheel alignment by incorporating a stepless adjustment mechanism.

  In terms of motor performance, the configuration that determines the wheel alignment such as kingpin tilt angle, scrubbing, caster angle, trail, etc. is the best for the vehicle body from the tests at the design stage in order to obtain maneuverability and stability. Determined based on the results. The effects of wheel alignment on the driver and the vehicle body are that the kingpin inclination angle and scrub depend on the reduction of steering force and the restoring force of the steering, and the caster angle and trail depend on the straight running stability and the restoring force of the steering. , They affect steering response, return, and sitting. However, although these factors are important in terms of vehicle performance, the adjustment method is to place a block, collar, and plate at the joint between the arm and knuckle, and move the upper pickup point to move the kingpin inclination angle. There is only a method of adjusting the wheel alignment by changing the caster angle or the like (see FIG. 8).

In addition, there are known strut-shaped suspension devices such as Patent Document 1 and Patent Document 2 in which the camber angle and the caster angle can be independently adjusted on the upper mount that supports the suspension device. It can be adjusted by replacing it with the upper mount that is attached when the next vehicle is produced.
JP 2006-224829 A JP 2006-347521 A

  In the prior art, although the wheel alignment can be changed, there is a problem that the number of parts increases as the adjustment range increases, in addition to the necessity of replacing parts in order to adjust the wheel alignment to the optimum value. In addition, there is a mechanism to adjust the wheel alignment if the suspension system is limited, but the possible adjustments are the camber angle and caster angle, and it is not possible to adjust the kingpin angle that governs both the angles. It was.

  The present invention solves the above-mentioned problems of the prior art, and provides an apparatus that allows stepless adjustment of wheel alignment by moving a movable part integrated with a coupling part that couples with a part of a vehicle body. The purpose is to do.

  According to a first aspect of the present invention, there is provided a wheel alignment adjusting device mounted on a knuckle of a vehicle body. The wheel alignment adjusting device is a front / rear adjusting member that is movable in a vehicle longitudinal direction, and is fastened to the front / rear adjusting member. It is equipped with a left / right adjustment body that can move in the left / right direction, and either the front / rear adjustment body or the left / right adjustment body is attached to the knuckle, the other is attached to the vehicle body, and the front / rear adjustment body and the left / right adjustment body are adjusted independently of each other. Make it possible. Thereby, a knuckle and the arm extended, for example from a part of vehicle body, can change a mutual positional relationship with respect to the vehicle body back and forth or right and left. That is, a change can be given to wheel alignment.

  As another form according to the first aspect of the present invention, the knuckle has a longitudinal adjustment hole penetrating in the vertical direction of the vehicle body, and the knuckle attached to the knuckle of the longitudinal adjustment body and the horizontal adjustment body is The front and rear support holes and the left and right adjustment holes penetrating in the vertical direction of the vehicle body, the front and rear adjustment body and the left and right adjustment body attached to the vehicle body have left and right support holes that penetrate in the vertical direction of the vehicle body, The knuckle and the front / rear adjuster and the left / right adjuster attached to the knuckle are fastened by the first fastening means that penetrates the front / rear adjuster hole and the front / rear support hole. Fastened by the second fastening means that penetrates the adjustment hole and the left and right support holes. Thereby, each adjustment body couple | bonds by the fastening of each fastening means via the support hole which each adjustment body has, and the adjustment hole which each couple | bonds, and enables the movement along an adjustment hole.

  As another embodiment according to the first embodiment of the present invention, the front / rear adjustment hole extends in the vehicle body front-rear direction at the upper end portion of the knuckle. Thereby, the adjusting body coupled to the upper end portion of the knuckle can move in the front-rear direction with respect to the vehicle body, that is, the caster angle can be adjusted.

  As another form according to the first form of the present invention, the left / right adjustment hole extends in the left-right direction of the vehicle body. As a result, the adjusting body coupled to the left / right adjusting hole can move in the left / right direction of the vehicle body.

  As another embodiment according to the first embodiment of the present invention, the front / rear adjustment body and the left / right adjustment body attached to the vehicle body side have a coupling hole for coupling with a part of the vehicle body side. As a result, the kingpin angle changes as the left-right adjuster moves.

  As another form according to the first aspect of the present invention, the knuckle has a support hole penetrating in the vertical direction of the vehicle body, and the one attached to the knuckle of the longitudinal adjustment body and the lateral adjustment body penetrates in the longitudinal direction of the vehicle body. The other of the front / rear adjustment body and the left / right adjustment body has a front / rear support hole penetrating in the longitudinal direction of the vehicle body and a left / right adjustment hole penetrating in the left / right direction of the vehicle body. The body and the left-right adjustment body attached to the vehicle body side are fastened by any fastening means that penetrates the support hole and the coupling hole, and the front-rear adjustment body and the left-right adjustment body are connected to the front-rear adjustment hole and the front-rear adjustment support. The front / rear adjustment body and the left / right adjustment body can be adjusted independently of each other by the front / rear adjustment means penetrating the hole. As a result, the knuckle and, for example, a part of the vehicle body can be positioned independently of each other in the vehicle longitudinal direction or the vehicle body left-right direction as the front-rear adjuster and the left-right adjuster move.

  As another form according to the first aspect of the present invention, the front / rear adjustment body and the left / right adjustment body attached to the vehicle body side have a left / right guide hole and a front / rear guide support hole. Left and right guide rods extending from a part of the vehicle body pass through and are joined to a part of the vehicle body. Thereby, the left-right adjustment body can move to the left and right along the left and right guide holes with respect to the vehicle body.

  As another form according to the first aspect of the present invention, the left / right adjustment hole has a screw thread on the inner surface of the hole and is screw-coupled with a left / right adjustment bolt extending from a part of the vehicle body that penetrates the left / right adjustment hole. Combine with part of the car body. Thereby, the left-right adjustment body can move in the left-right direction of the vehicle body by the rotation of the left-right adjustment bolt. Further, since the adjustment is performed by the rotation of the bolt, precise adjustment is possible.

  As another form according to the first aspect of the present invention, the front / rear adjustment body and the left / right adjustment body attached to the knuckle have front / rear guide holes, and the front / rear guide holes and front / rear guide support holes have front / rear guide rods. Penetrates, and the other of the front / rear adjuster and the left / right adjuster is coupled. As a result, the left / right adjusting body is coupled to the front / rear adjusting body by the guide rod, and can be moved along the guide rod.

  As another form according to the first aspect of the present invention, the front / rear adjustment hole has a screw thread on the inner surface of the hole, and is screw-coupled with a front / rear adjustment bolt penetrating the front / rear adjustment support hole. Combine with one side of the body. Accordingly, the front / rear adjustment body having the front / rear adjustment hole can be moved in the front-rear direction of the vehicle body by the rotation of the front / rear adjustment bolt. Further, since the adjustment is performed by the rotation of the bolt, precise adjustment is possible.

As another embodiment according to the first aspect of the present invention, the front and rear adjustment body and the left and right adjustment body attached to the knuckle have a coupling hole, and the fastening means penetrates the coupling hole and the knuckle support hole. Fasten with knuckle. Thereby, the position of a knuckle can be changed with the movement of the front-back adjustment body. Hereinafter, the best embodiment according to the present invention will be described in detail with reference to the drawings.
The technical scope of the present invention is not limited to the following embodiments, and forms obtained by adding various changes or improvements to the embodiments are also included in the technical scope without departing from the spirit of the present invention. .

Best form 1
FIG. 1 shows an overview and configuration of a wheel alignment adjusting device 1 according to Embodiment 1 of the present invention. The wheel alignment adjusting device 1 mainly includes a knuckle 10, a front / rear adjuster 20 coupled to the knuckle 10, and a left / right adjuster 30 coupled to the front / rear adjuster 20.
As shown in FIG. 1B, the knuckle 10 is bent in a substantially L shape so as to escape to the vehicle body side so as not to come into contact with the wheel T, and extends to the upper side of the wheel. A wheel T is rotatably attached to the lower end portion of the knuckle 10, and a knuckle plate 15 is formed integrally with the upper end portion of the knuckle 10. The knuckle plate 15 is formed in a rectangular shape having a long side in the longitudinal direction of the vehicle body, and exhibits a substantially T-shaped appearance with the knuckle 10 positioned below.

  The knuckle plate 15 includes a plurality of front and rear adjustment holes 11 penetrating up and down the vehicle body. The front / rear adjustment hole 11 is a through hole provided continuously along the long side of the rectangular knuckle plate 15, and is provided on the vehicle body direction front side and the vehicle body direction rear side. In the present embodiment, the front and rear adjustment holes 11 are provided at four locations as shown in the figure, but the arrangement and number are not limited to this.

The front / rear adjusting body 20 is formed in a rectangular shape having a long side in the left-right direction of the vehicle body, and is positioned above the lower knuckle plate 15.
The front / rear adjustment body 20 includes a plurality of front / rear support holes 22, a plurality of left / right adjustment holes 21, and escape holes for fixing means that pass through the connecting portions 5 described later.
The front / rear support hole 22 is provided in the vicinity of the corner of the rectangular front / rear adjusting body 20 on the vehicle body side as a through hole penetrating in the vertical direction of the vehicle body. The front and rear support holes 22 provided in the vicinity of the corners on the front side in the vehicle body direction are provided to be substantially equal to the separation interval of the front and rear adjustment holes 11 provided on the front side in the vehicle body direction located below each other. The front and rear support holes 22 provided in the vicinity of the corners on the rear side in the vehicle body direction are provided at substantially the same distance as the separation intervals of the front and rear adjustment holes 11 provided on the rear side in the vehicle body direction positioned below each other.
That is, the front / rear adjustment hole 11 and the plurality of front / rear support holes 22 positioned above the front / rear adjustment hole 11 are provided so as to coincide with each other.

In a state where the front / rear adjustment hole 11 and the front / rear support hole 22 are aligned, a front / rear adjustment fixing bolt 23 is inserted into the front / rear adjustment hole 11 and the front / rear support hole 22. The front / rear adjustment fixing bolt 23 has a bolt head 23 a at the upper end, and the lower end is screwed into the nut block 24.
The nut block 24 includes a casing that extends in the left-right direction of the vehicle body, and has cylindrical protrusions 24 a and 24 b that have screw holes inside from the upper surface of the casing upward.
The projecting portions 24 a and 24 b are provided so as to be approximately the same as the separation interval of the front and rear adjustment holes 11 positioned above, and the cylinder diameter is set to be substantially equal to the width of the front and rear adjustment holes 11.
When the front / rear adjustment fixing bolt 23 is screwed into the screw holes of the protrusions 24a, 24b, the nut block 24 comes into contact with the lower surface of the knuckle plate 15 so as to straddle the upper front / rear adjustment hole 11, and the protrusion 24a and 24b fits into the front / rear adjustment hole 11 to define the direction of adjustment in the longitudinal direction of the vehicle body.
That is, the knuckle plate 15 and the front / rear adjustment body 20 are fastened so as to be sandwiched between the bolt block 23a of the front / rear adjustment fixing bolt 23 inserted through the front / rear adjustment hole 11 and the front / rear support hole 22 and the nut block 24. Is done.

  The left / right adjustment hole 21 is a through hole provided continuously along the long side of the rectangular front / rear adjustment body 20, and is provided to be separated from the vehicle body direction front side and the vehicle body direction rear side. In the present embodiment, the left and right adjustment holes 21 are two as shown in the figure, but the arrangement and number are not limited thereto.

The left / right adjustment body 30 is formed in a rectangular shape having a long side in the longitudinal direction of the vehicle body, and is positioned above the front / rear adjustment body 20.
The left / right adjustment body 30 includes left / right support holes 32 and a coupling portion 5. The left and right support holes 32 are provided in the vicinity of the corners as through holes penetrating in the vertical direction of the vehicle body.
The left and right support holes 32 provided near the corners on the front side in the longitudinal direction of the vehicle body are provided in the same straight line along the left and right adjustment holes 21 on the front side in the longitudinal direction of the vehicle body.
The left and right support holes 32 provided near the corners on the rear side in the longitudinal direction of the vehicle body are provided in the same straight line along the left and right adjustment holes 21 located on the rear side in the longitudinal direction of the vehicle body.
That is, the left / right adjustment hole 21 and the left / right support hole 32 positioned above the left / right adjustment hole 21 are provided so as to coincide with each other.

In a state where the left / right adjustment hole 21 and the left / right support hole 32 coincide with each other, the left / right adjustment fixing bolt 33 is inserted into the left / right adjustment hole 21 and the left / right support hole 32. The left and right adjustment fixing bolt 33 has a bolt head 33 a at the upper end, and the lower end is screwed into the nut block 34.
The nut block 34 includes a casing that extends in the longitudinal direction of the vehicle body, and has cylindrical protrusions 34a and 34b that have screw holes inside from the upper surface of the casing upward.
The protrusions 34 a and 34 b are provided so as to be approximately equal to the separation interval of the left and right adjustment holes 21 positioned above each other, and the cylinder diameter is set to be approximately equal to the width of the left and right adjustment holes 21.
When the left / right adjustment fixing bolt 33 is screwed into the screw holes of the protrusions 34a, 34b, the nut block 34 comes into contact with the lower surface of the left / right adjustment hole 21 so as to straddle the upper left / right adjustment hole 21, and the protrusion 34a. And 34b are fitted into the left and right adjustment holes 21 to regulate the adjustment direction in the left and right direction of the vehicle body.
That is, the front / rear adjustment body 20 and the left / right adjustment body 30 are sandwiched between the bolt block 33a of the left / right adjustment fixing bolt 33 inserted through the left / right adjustment hole 21 and the left / right support hole 32 and the nut block 34. It is concluded.

  The coupling portion 5 serves as a coupling point for coupling with a part of the vehicle body located at the center of the left-right adjusting body 30 formed in a rectangular shape, that is, an upper pickup point of a component factor in adjusting the wheel alignment.

FIG. 2 shows an adjusting operation of the wheel alignment adjusting device 1 having the above configuration.
In order to adjust the tilt angle of the kingpin, the left / right adjustment fixing bolt 33 is loosened, the left / right adjustment body 30 is moved to the left or right of the vehicle body along the left / right adjustment hole 21 of the front / rear adjustment body 20, and the left / right adjustment fixing bolt 33 is again moved. It is done by fastening.
For example, when the left / right adjusting body 30 shown by the solid line in FIG. 2A is moved to the vehicle body side shown by the broken line, the kingpin angle shown in FIG. 3 can be changed from α to α ′. With this adjustment, the distance between the vertical line O passing through the center of the tire and the point where the straight line connecting the connecting portion 5 and the lower pickup point 6 intersects the ground, that is, the scrub value, becomes smaller after the adjustment than before the adjustment, and is used for the steering operation. Such force can be reduced. In this adjustment, the upper arm A coupled to the coupling portion 5 has a mechanism for changing the arm length in a pseudo manner.

  At this time, since the connecting portion 5 is only moved in the depth direction on the front / rear adjusting body 20 when viewed from the left-right direction of the vehicle body, the caster angle does not change (see FIG. 3).

  Further, when adjusting, the projecting portions 34a and 34b of the nut block 34 coupled to the left / right adjusting fixing bolt 33 are fitted in the left / right adjusting holes 21, 21, so that the moving direction of the left / right adjusting body 30 is restricted and the left / right direction is surely secured. Only change can be given. In addition, since the casing of the nut block 34 is in contact with the lower surface of the left / right adjustment hole 21 so as to straddle the upper left / right adjustment hole 21 in adjusting the kingpin inclination angle, the tool can be moved from one direction in tightening the left / right adjustment fixing bolt 33. Easy to tighten by using.

  To adjust the caster angle, the front / rear adjustment fixing bolt 23 is loosened, the front / rear adjustment body 20 is moved forward or backward in the vehicle longitudinal direction along the front / rear adjustment hole 11 of the knuckle plate 15, and the front / rear adjustment fixing bolt 23 is fastened again. By doing. For example, when the longitudinal adjustment body 20 shown by the solid line in FIG. 2B is moved rearward in the vehicle longitudinal direction shown by the broken line, the caster angle β shown in FIG. 4 can be changed to β ′. By this adjustment, the distance between the vertical line O passing through the center of the tire and the point where the straight line connecting the connecting portion 5 and the lower pickup point 6 intersects the ground, that is, the trail becomes larger after the adjustment than before the adjustment, and the straightness of the vehicle body Increase. In this adjustment, the upper arm A that is coupled to the coupling portion 5 is provided with a mechanism that moves in the longitudinal direction of the vehicle body at a fixed portion that is fixed to the vehicle body.

  At this time, the connecting portion 5 moves in the longitudinal direction of the vehicle body, and the angle formed by the straight line connecting the connecting portion 5 and the lower pickup point 6 and the vertical line passing through the connecting portion 5 does not change in the left-right direction of the vehicle body (see FIG. 4). ).

  Since the protrusions 24a and 24b of the nut block 24 coupled to the front / rear adjustment fixing bolt 23 are fitted into the front / rear adjustment hole 11, the movement direction of the front / rear adjustment body 20 is restricted, and only the front / rear direction can be changed reliably. . Further, since the casing of the nut block 24 is in contact with the lower surface of the knuckle plate 15 so as to straddle the upper front / rear adjustment hole 11 in adjusting the caster angle, the tool is used from one direction when loosening the front / rear adjustment fixing bolt 23. It can be easily tightened.

With the above description, the kingpin angle and the caster angle can be adjusted independently.
This adjustment device enables stepless adjustment of wheel alignment without replacement of parts.

  In the present embodiment, the knuckle plate 15 is provided with the front / rear adjustment hole 11 that enables adjustment in the front / rear direction. However, the knuckle plate 15 may be provided with a continuous adjustment hole along the short side, or the knuckle plate The shape of 15 may be formed in a rectangular shape having a long side in the left-right direction of the vehicle body. That is, the knuckle plate 15 can be used as a member that can be adjusted in the left-right direction, and the front-rear adjuster 20 can be used as a member that can be adjusted in the left-right direction. The arrangement order of members is not limited to the embodiment.

Best form 2
5 and 6 show an overview and a configuration of the wheel alignment adjusting device 2 according to the second embodiment of the present invention. The wheel alignment adjusting device 2 mainly includes a knuckle 10, a front / rear adjusting body 40 coupled to the knuckle 10, and a left / right adjusting body 50 coupled to the front / rear adjusting body 40.
As shown in FIG. 5 (a), the knuckle 10 is bent in a substantially L shape so as to escape to the vehicle body side so as not to come into contact with a wheel outside the figure, and extends to the upper side of the wheel. A wheel (not shown) is rotatably attached to the lower end of the knuckle 10, and a knuckle plate 15 is integrally formed with the upper end of the knuckle 10. The knuckle plate 15 is formed in a rectangular shape having a long side in the left-right direction of the vehicle body, and has a substantially L-shaped appearance with the knuckle 10 positioned below.

  The knuckle plate 15 includes an adjustment hole 12 that penetrates the vehicle body up and down, and a coupling support 13 that penetrates the adjustment hole 12 and sandwiches the upper surface and the lower surface of the knuckle plate 15. The adjustment hole 12 is a through hole provided along the long side of the rectangular knuckle plate 15, and both ends and the center of the through hole have a rectangular shape extending in the longitudinal direction of the vehicle body.

  As shown in FIG. 6 (c), the coupling support body 13 includes flange-like sliding bodies 13a and 13b that come into contact with the upper and lower surfaces of the knuckle plate 15, and supports the interior through the vehicle body in the vertical direction. A hole 14 is provided.

  The front / rear adjusting body 40 is a rectangular body having a long side in the left-right direction of the vehicle body, and is positioned above the lower knuckle plate 15. The front / rear adjustment body 40 includes a front / rear guide hole 42, a front / rear adjustment hole 41, and a coupling portion 5. The front / rear guide hole 42 is provided in the vicinity of the corner of the front / rear adjuster 40 on the outer side of the vehicle body as a through hole penetrating in the vehicle front / rear direction. The front / rear adjustment hole 41 is provided in parallel with the front / rear guide hole 42 in the vicinity of the vehicle body side corner of the front / rear adjustment body 40 as a screw hole penetrating in the vehicle longitudinal direction. The coupling portion 5 is provided with a coupling hole 5a as a through-hole penetrating in the vertical direction of the vehicle body at a substantially central portion of the front / rear adjusting body 40. As shown in FIG. 6B, the coupling portion 5 includes a mechanism that rotatably supports the coupling hole 5a such as a ball joint.

  The front / rear adjuster 40 and the knuckle 10 are coupled by fastening bolts and nuts or the like that pass through the coupling hole 5a of the coupling part 5 and the support hole 14 of the coupling support 13. The sliding bodies 13 a and 13 b constituting the coupling support 13 by this coupling are pressed against the upper surface and the lower surface of the knuckle plate 15 and are fixed to the adjustment hole 12.

  The left-right adjustment body 50 is provided in a vehicle body front-rear direction, and has a U-shape with wall portions 50a, 50b facing each other and a bottom portion 50c connecting the wall portions 50a and 50b. The wall portion 50a and the wall portion 50b are located on the front and rear sides of the vehicle body with the front / rear adjustment body 40 interposed therebetween, and are positioned so as to cover the front / rear adjustment body 40 with the open portion side facing.

The wall portion 50a includes a front / rear adjustment support hole 53a, a front / rear guide support hole 54a, and a left / right adjustment hole 51. The wall portion 50b includes front / rear adjustment support holes 53b, front / rear guide support holes 54b, and left / right guide holes 52 at positions corresponding to the front / rear adjustment support holes 53a and the front / rear guide support holes 54a, respectively.
The front / rear adjustment support hole 53a and the front / rear guide support hole 54a are through-holes that penetrate the wall 50a in the longitudinal direction of the vehicle body. The front / rear adjustment support hole 53a is located near the center of the wall 50a on the vehicle body side. The hole 54a is located near the center of the wall 50a outside the vehicle body. The front / rear adjustment support hole 53b and the front / rear guide support hole 54b are through-holes penetrating the wall 50b in the longitudinal direction of the vehicle body. The front / rear adjustment support hole 53b is located in the vicinity of the center of the wall 50b on the vehicle body side. The hole 54b is located near the center of the wall 50b outside the vehicle body. The left / right adjustment hole 51 is a screw hole that penetrates the wall 50a in the left-right direction of the vehicle body in the vicinity of a corner formed by the wall 50a and the bottom 50c. The left and right guide holes 52 are through holes that penetrate the wall 50b in the left-right direction of the vehicle body in the vicinity of the corner formed by the wall 50b and the bottom 50c.

  The distance between the straight line connecting the centers of the front and rear adjustment support holes 53a and 53b and the straight line connecting the center of the front and rear guide support holes 54a and 54b is the distance between the front and rear adjustment bodies. It is equal to the distance connecting the centers of the front and rear adjustment holes 41 and the front and rear guide holes 42 of 40. That is, the front / rear adjustment support hole 53a, the front / rear adjustment support hole 53b, the front / rear adjustment hole 41, the front / rear guide support hole 54a, the front / rear guide support hole 54b, and the front / rear guide hole 42 are positioned on the same straight line.

  In a state where the front / rear guide support hole 54a, the front / rear guide support hole 54b, and the front / rear guide hole 42 are aligned, the front / rear guide rod 57 is inserted through the front / rear guide support hole 54a, the front / rear guide hole 42, and the front / rear guide support hole 54b in this order. Let The front and rear guide rods 57 are provided with circumferential grooves at both ends, and are held so as not to fall out of the left-right adjusting body 50 by inserting a snap ring or the like into the groove after insertion and penetration.

A front / rear adjustment bolt 55 passes through the front / rear adjustment support hole 53a, the front / rear adjustment support hole 53b, and the front / rear adjustment hole 41. The front / rear adjustment bolt 55 includes a bearing 56a at the bolt head side end 55b at one end of the threaded portion, and the end 55d at the other end does not have a thread and has an outer diameter portion equal to the valley diameter of the threaded portion. Some have circumferential grooves. The bearing 56a is inserted together with the front / rear adjustment bolt 55 with an outer diameter substantially equal to that of the front / rear adjustment support hole 53a. A bearing 56b is press-fitted into the front / rear adjustment support hole 53b from the rear side in the vehicle longitudinal direction toward the front side. The inner diameter of the bearing 56b is such that the end portion 55d of the front / rear adjustment bolt 55 penetrates without play. The screw portion 55c of the front / rear adjustment bolt 55 is screwed to the front / rear adjustment hole 41 of the front / rear adjustment body 40.
That is, the front / rear adjustment bolt 55 includes the bearing 56a. The front / rear adjustment bolt 55 passes through the wall 50a and is screwed to the front / rear adjustment hole 41 of the front / rear adjustment body 40, and then the bearing 56a is connected to the front / rear adjustment support hole 53a. The bearing 56b is penetrated while fitting.
The end 55d protrudes from the bearing 56b, and a snap ring is attached to the groove provided in the end 55d of the protrusion, so that the front / rear adjustment bolt 55 is fixed in an adjustable manner.
As described above, the front / rear adjustment body 40 and the left / right adjustment body 50 are coupled to each other by the front / rear guide rod 57 and the front / rear adjustment bolt 55 so as to be adjustable.

The left and right adjustment holes 51 and the left and right guide holes 52 are respectively coupled to left and right adjustment bolts 61 and left and right guide bars 62 provided in the upright 60 that forms part of the suspension device. The left and right adjustment bolt 61 and the left and right guide rod 62 are aligned with each other with the left and right adjustment bolt 61 and the left and right adjustment hole 51, and the left and right guide rod 62 and the left and right guide hole 52. Further, the left / right adjusting bolt 61 and the left / right guide rod 62 extend from the upright 60 in the left-right direction of the vehicle body.
The left / right adjustment bolt 61 includes a screw portion 61c, a coupling portion 61d, and a left / right adjustment nut 61e. The screw portion 61c is screwed to the left / right adjusting hole 51, and the connecting portion 61d is held by being press-fitted into a bearing 64 provided in the upright 60. The left / right adjustment nut 61e is fixed to the screw portion 61c. The left and right guide rods 62 are fixed by press-fitting one end into the upright 60 and the other end is passed through the left and right guide holes 52. As described above, the left / right adjustment body 50 is adjustably coupled to the upright 60.

Hereinafter, an adjustment method of the wheel alignment adjusting device 2 having the above configuration will be described.
The kingpin angle is adjusted by loosening the fastening between the coupling support 13 and the coupling portion 5 and rotating the left / right adjustment nut 61e of the left / right adjustment bolt 61 to the left or right to adjust the movement of the left / right adjustment body 50. This is performed by fastening 13 and the connecting portion 5. The left / right adjusting body 50 is moved in the left / right direction of the vehicle body along the left / right guide bar 62 by the screw of the left / right adjusting hole 51. At this time, the adjustment support body 13 coupled via the front / rear adjustment body 40 coupled to the left / right adjustment body 50 moves the adjustment hole 12 in the lateral direction of the vehicle body in accordance with the adjustment. As a result, as shown in FIG. 7A, the kingpin angle α can be changed in the left-right direction of the vehicle body. At this time, the connecting portion 5 is only moved in the left-right direction toward the vehicle body in the left-right direction of the vehicle body, and the caster angle does not change.

  Further, in the above adjustment, the camber angle can be adjusted by rotating the left / right adjustment bolt 61 without loosening the fastening between the coupling support 13 and the coupling portion 5.

  The caster angle is adjusted by rotating the front / rear adjustment bolt 55 to the right or left. The front / rear adjuster 40 is moved in the front-rear direction of the vehicle body along the front / rear guide rod 57 by the screw of the front / rear adjustment hole 41. In this adjustment, the coupling support 13 coupled to the coupling portion 5 moves in the longitudinal direction of the vehicle body while holding the knuckle plate 15, thereby changing the caster angle β in the longitudinal direction of the vehicle body as shown in FIG. 7B. Can do. At this time, the connecting portion 5 has only moved in the longitudinal direction of the vehicle body, and the kingpin angle does not change.

  The adjustment of the wheel alignment according to the present embodiment can be accurately moved with respect to the front / rear adjustment body 40 or the left / right adjustment body 50 because the rotation of the bolt is used as an adjustment means. The kingpin angle and caster angle can be adjusted independently of each other. Therefore, by using this adjusting device, it is possible to adjust the wheel alignment steplessly without replacement of parts.

FIG. 1 is an overview and a configuration diagram of a wheel alignment adjusting device 1 according to the best mode 1. FIG. 2 is a conceptual diagram of adjustment of the wheel alignment adjusting device 1 according to the best mode 1. The effect figure of the kingpin angle adjustment which concerns on the best form 1. FIG. The effect figure of the caster angle adjustment which concerns on the best form 1. FIG. The general view of the adjustment apparatus 2 which concerns on the best form 2, and a coupling | bond part expanded sectional view. FIG. 3 is a detailed configuration diagram of an adjusting device 2 according to the best mode 2. The figure which shows the alignment adjustment apparatus and the effect on alignment. FIG.

Explanation of symbols

1 wheel alignment adjuster, 2 wheel alignment adjuster,
5 connecting part (upper pick-up point), 6 lower pick-up point,
10 knuckle, 11 front and rear adjustment holes, 12 adjustment holes, 13 joint support, 14 support holes,
15 knuckle plate, 20 front / rear adjustment body, 21 left / right adjustment hole, 22 front / rear support hole,
23 Front / rear adjustment fixing bolt, 24 Nut block, 24a, 24b Protruding part,
30 left and right adjustment bodies, 32 left and right support holes, 33 left and right adjustment fixing bolts,
34 nut block, 34a, 34b protrusion, 40 front and rear adjustment body,
41 Front / rear adjustment hole, 42 Front / rear guide hole, 50 Left / right adjustment body, 51 Left / right adjustment hole,
52 left and right guide holes, 53a, 53b longitudinal adjustment support holes,
54a, 54b Front and rear guide support holes, 55 Front and rear adjustment bolts, 55a Bolt head,
55c thread, 55d end, 56a, 56b bearing, 60 upright,
61 left-right adjustment bolt, 61a bolt head, 61c screw part, 61d coupling part,
61e Left / right adjustment nut, 62 Left / right guide bar, α Kingpin angle before adjustment,
α 'kingpin angle after adjustment, caster angle before β adjustment,
β 'caster angle after adjustment, A upper arm, B lower arm, O vertical line,
T wheels.

Claims (11)

A wheel alignment adjusting device mounted on a knuckle of a vehicle body,
The wheel alignment adjustment device includes a front / rear adjustment body that is movable in the longitudinal direction of the vehicle body, and a left / right adjustment body that is fastened to the front / rear adjustment body and is movable in the lateral direction of the vehicle body.
Attach one of the front / rear adjuster and the left / right adjuster to the knuckle, and attach the other to the vehicle body.
A wheel alignment adjusting device characterized in that the front / rear adjusting body and the left / right adjusting body can be adjusted independently of each other. The knuckle has a front / rear adjustment hole penetrating in the vertical direction of the vehicle body,
The one attached to the knuckle of the front / rear adjustment body and the left / right adjustment body has a front / rear support hole penetrating in the vertical direction of the vehicle body and a left / right adjustment hole penetrating in the vertical direction of the vehicle body,
The front and rear adjustment body and the left and right adjustment body attached to the vehicle body have left and right support holes that penetrate the vehicle body in the vertical direction.
The knuckle and the front / rear adjustment body and the one attached to the knuckle of the left / right adjustment body are fastened by a first fastening means that penetrates the front / rear adjustment hole and the front / rear support hole,
The wheel alignment adjusting device according to claim 1, wherein the front / rear adjusting body and the left / right adjusting body are fastened by a second fastening means that penetrates the left / right adjusting hole and the left / right supporting hole.   The wheel alignment adjusting device according to claim 2, wherein the front / rear adjustment hole extends in a longitudinal direction of the vehicle body at an upper end portion of the knuckle.   The wheel alignment adjusting device according to claim 2, wherein the left / right adjustment hole extends in a left / right direction of the vehicle body.   5. The wheel alignment adjusting device according to claim 1, wherein the front-rear adjusting body and the left-right adjusting body attached to the vehicle body side have a coupling hole for coupling with a part of the vehicle body side. . The knuckle has a support hole penetrating in the vertical direction of the vehicle body,
Those attached to the knuckle of the front / rear adjustment body and the left / right adjustment body have front / rear adjustment holes penetrating in the longitudinal direction of the vehicle body,
The other of the front / rear adjustment body and the left / right adjustment body has a front / rear support hole penetrating in the longitudinal direction of the vehicle body and a left / right adjustment hole penetrating in the lateral direction of the vehicle body,
The knuckle and the front and rear adjustment body and the one attached to the vehicle body side of the left and right adjustment body are fastened by any fastening means that penetrates the support hole and the coupling hole,
The front / rear adjustment body and the left / right adjustment body are coupled by front / rear adjustment means penetrating the front / rear adjustment hole and the front / rear adjustment support hole,
The wheel alignment adjusting device according to claim 1, wherein the front / rear adjusting body and the left / right adjusting body can be adjusted independently of each other. The one attached to the vehicle body side of the front / rear adjuster and the left / right adjuster has a left / right guide hole and a front / rear guide support hole,
The left and right guide holes penetrate left and right guide bars extending from a part of the vehicle body,
The wheel alignment adjusting device according to claim 1, wherein the wheel alignment adjusting device is coupled to a part of the vehicle body.   The left / right adjustment hole has a screw thread on an inner surface of the hole, and is screwed to a left / right adjustment bolt extending from a part of the vehicle body that penetrates the left / right adjustment hole, and is connected to a part of the vehicle body. The wheel alignment adjusting device according to claim 1 or any one of claims 6 to 7. The one attached to the knuckle of the front / rear adjustment body and the left / right adjustment body has front / rear guide holes, and the front / rear guide rods pass through the front / rear guide holes and the front / rear guide support holes,
9. The wheel alignment adjusting device according to claim 1, wherein the front / rear adjusting body and the other of the left / right adjusting body are coupled to each other.   The front / rear adjustment hole has a thread on an inner surface of the hole, and is screw-coupled to a front / rear adjustment bolt penetrating the front / rear adjustment support hole, and is coupled to one of the front / rear adjustment body and the left / right adjustment body. The wheel alignment adjusting device according to any one of claims 2 to 6 or 9.   The thing attached to the knuckle of the said back-and-forth adjustment body and the left-right adjustment body has a coupling hole, and is fastened with the knuckle by the fastening means which penetrates the coupling hole and the support hole of the knuckle. The wheel alignment adjusting device according to claim 2 or any one of claims 6 to 10.

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