JPH0715818Y2 - Wheel Alignment Tool Attachment to Wheels - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of use) The present invention relates to a wheel alignment tool for use in wheel alignment measurement of a four-wheeled vehicle.

(Prior art and its problems) Conventional products include, for example, U.S. Pat. No. 4,167,817, which has a complicated mechanism, is expensive in price, and is troublesome to mount on a wheel. Then, the inclination of the wheel alignment measuring tool is completely unknown.
Further, as shown in FIG. 4, since the mounting claw is fixed inside the rim 10 of the wheel, it cannot be used for a wheel of a wheel having a small lip portion 11 of the rim 10 as shown in FIG. 6, and the wheel cap 12 is mounted. It was not possible to use it for the thing which has been removed.

Among the conventional products, a locking ring 14 is built into the rim screw 13 so that it can be used for wheels with small lip 11 as shown in Figs. 5 and 6, or wheels with wheel cap 12 mounted. Although there is one to which the mounting adapter 15 is attached, the locking ring has a rattling because it is merely a retainer, and it requires skill to mount it accurately.

In addition, the camber, caster, and kingpin gauge 16 have been used to correct the six measuring heads, and this has a bubble leveler built-in, but no swing mechanism. Therefore, as shown in Fig. 7, when the wheel alignment measuring instrument is attached to the wheel by jacking up, the whole vehicle is greatly inclined, and the bubbles of the bubble leveler are biased to one end, and the wheel is rotated. Even bubbles do not move,
It was very inconvenient because it could not be used as a guide for correcting the six faces of the measuring head.

(Means and Actions for Solving Problems) The present invention was devised in view of the above problems,
A left female screw portion is provided on one side, and a right female screw portion is provided on the other side in the vertical direction of each substantially central portion, and guide shafts are inserted on both sides of each screw portion in parallel with the screw portion at equal intervals. A pair of mounting arms provided with a through hole for use, a center bolt in which male threads corresponding to the female thread of each mounting arm are screwed on both sides, and a guide slidably loosely fitted in the through hole for inserting the guide shaft. A wheel alignment tool that is connected to a shaft and equipped with a measuring head to check the mounting condition.A ball is rotatably attached to one end of each arm of each mounting arm. By attaching the mounting claw set bolt and the mounting claw provided with a ball groove on the outer circumference of the column so as to engage with the set bolt, the mounting claw can be freely rotated with respect to each mounting arm. In addition, the wheel with a small lip portion of the rim and the wheel cap are still attached in order to fit the wheel circumferential surface of various sizes by rotating the center bolt and hold it between the tire and the wheel and the rim. It can be easily attached to the wheel of the, and the level of the bubble leveler that is pivotally supported on the magnet is detachably attached to the correction base, so that the angle of the measuring head surface can be accurately and easily and quickly corrected. It is intended to provide a mounting tool for a wheel of the wheel alignment measuring instrument.

(Example) A detailed description will be given below with reference to the drawings.

A left female threaded portion 18 and a right female threaded portion 17 are formed in the vertical direction of the center of the pair of mounting arms 1 and 2, respectively, and through holes 19 are provided in parallel with the female threaded portions at equal intervals. Each female screw part 1
In order to accommodate this, 7,18 are screwed into a single center bolt 5 having a left male screw portion on one side and a right male screw portion on the other side. 3 and 4 are slidably fitted. At one end of the center bolt 5,
A grip 5'is attached. The disk-shaped center base 20 is fixed to the center of the guide shafts 3 and 4 with a pin. Further, the center bolt 5 having a groove on the outer periphery between the left female screw portion and the right female screw portion is rotatably held by the center base 20.

A mounting claw set bolt 7 having a ball rotatably attached to one end thereof is screwed into each arm end of the mounting arms 1 and 2, and a columnar portion is engaged with the ball at one end of the set bolt 7. By attaching the mounting claw 8 having a ball groove on the outer periphery of the mounting claw 8, the mounting claw 8 can be freely rotated with respect to each mounting arm.

A correction plate 21 is attached to the center base 20 by a plurality of springs and bolts so that the angle of the measurement head 6 surface with respect to the axle can be corrected. On the plane of the measuring head 6 which is rotatably attached perpendicularly to the axis of the correction plate 21 and the cylindrical portion, a level 9 in which one end of a bubble leveler is axially supported by a magnet is removable.

Next, the movement of the mounting tool on the wheel of the wheel alignment measuring instrument having the above configuration will be described.

Fit each mounting claw 8 of the upper mounting arm 1 between the tire and the wheel rim 10, and then center each mounting claw 8 of the lower mounting arm 2 between the tire and the wheel rim 10. The grip 5'of the bolt 5 is rotated to reduce the distance between the arms. At this time, the mounting claws 8 are attached to the mounting arms 1 and 2 by the ball at the tip of the set bolt and the ball groove of the mounting claws 8.
It is rotatably attached to the small wheel of the lip part 11 of the rim 10 and the wheel cap 12 for fixing regardless of the size of the wheel and between the tire and the rim 10 of the wheel. It can be installed regardless of the wheels that are still attached.

In addition, the columnar portion of the correction plate 21 of the fitting of the measuring instrument, which is securely gripped by the wheel as described above, to the wheel must be parallel to the axle during the toe-in measurement. The angle of the measuring head 6 surface must be corrected by the turning operation of the correction knob 21 'depending on the state of fixing the mounting tool to the wheel. If the level 9 that serves as a guide for the angle correction of the surface of the measuring head 6 is attached to the measuring head 6 by a magnet, and the angle of the leveler pivotally supported by the magnet is changed horizontally so that the movement of bubbles can be clearly understood, the measuring head is changed. The angle correction of the 6 surfaces can be easily performed.

(Effects of the Invention) As described above, the present invention can be applied to a wheel with a small lip portion 11 on the rim or a wheel with the wheel cap 12 attached by rotating the handle 5 ′ attached to one end of the center bolt 5. It has an excellent practical effect that it can be easily and surely gripped, and that the attachment of the device of the present invention can be checked for inclination by attaching a detachable bubble level 9 that is supported by a magnet. is there.

[Brief description of drawings]

1 is a side view of the present invention, FIG. 2 is a rear view, FIG. 3 is an enlarged view of a part of a mounting arm of the present invention, a mounting claw and a set bolt, and FIG. 4 is mounted inside a rim of a wheel. FIG. 5 is a reference diagram showing a conventional example of a mounting claw for fixing a claw, FIG. 5 is a reference diagram showing a conventional example of fixing a claw between a tire and a wheel rim, and FIG. 6 is a wheel cap with a wheel having a small lip portion of the wheel rim and a wheel. Fig. 7 is a reference diagram showing a state where the mark is attached, and Fig. 7 is a reference example showing a state of attaching the level when jacking up (the dotted line is a camber caster king pin gauge).

Claims (1)

[Scope of utility model registration request] 1. A left female threaded portion 18 is provided on one side and a right female threaded portion 17 is provided on the other side in the vertical direction of each substantially central portion, and the threaded portions 17, 18 are provided on both sides of each threaded portion. A pair of mounting arms 1 and 2 provided with through holes 19 for inserting the guide shaft in parallel and at equal intervals, and male screw portions corresponding to the female screw portions 17 and 18 of the respective mounting arms 1 and 2 are screwed on both sides. With the center bolt 5
Mounting a wheel alignment measuring instrument on a wheel, which is connected with a pair of guide shafts 3 and 4 slidably fitted in a guide shaft insertion through hole 19 and has a measuring head 6 for checking the mounting state. In the tool, each mounting arm
A mounting claw set bolt 7 having a ball rotatably attached to one end of each of the arm tips 1 and 2 and a mounting claw having a ball groove formed on the outer periphery of a cylindrical portion so as to engage with the set bolt 7. By attaching 8 and 8, the mounting claw 8 can be freely rotated with respect to the respective mounting arms 1 and 2, and a level 9 in which one end of a bubble leveler is axially supported by a magnet is detachably mounted on the measuring head 6. A tool for mounting a wheel alignment measuring instrument on a wheel.