JPH072948U - Wheel balancer wheel measuring tool - Google Patents

Abstract

(57) [Summary] [Purpose] To simplify the measurement of the inside and outside diameters of a wheel in a wheel balancer. A socket 1, an L-shaped arm 2 protruding in a radial direction from the socket and bent at a front end at a right angle, and a contact 2b protruding further outward in a radial direction from a front end of the arm 2. Consists of.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a wheel balancer wheel measuring tool used for vehicle maintenance and inspection.

[0002]

[Prior art]

 As a conventional measuring instrument of this type, there is known a socket in which a rod-shaped arm is projected in the radial direction and a contact is fixed to the tip thereof.

[0003]

[Problems to be solved by the device]

 In recent years, many wheels have come to have a relatively large through hole formed in the disk portion.

However, according to the conventional detection tool, since the rod-shaped arm is projected in the socket in the radial direction and the contactor is fixed to the tip of the arm, the wheel having the relatively large through hole in the disk portion is formed. However, since the inside diameter of the wheel mounted on the main shaft of the wheel balancer can be measured, but the outside diameter cannot be detected, in order to detect this outside diameter, another wheel for measuring the outside diameter is used. It was necessary to equip with the measuring tools described above, which made the device complicated and required time and effort for measurement.

An object of the present invention is to solve the above problems and to provide a wheel balancer wheel measuring tool capable of easily controlling the inner and outer diameters of the wheel with a simple structure. To do.

[0006]

[Means for Solving the Problems]

 To achieve the above object, the present invention provides a socket, an L-shaped arm projecting from the socket in a radial direction and bent at a right angle at a tip portion, and a radial direction from a tip of the arm. It is characterized in that it is composed of a contactor protruding outward.

[0007]

[Action]

 The measuring tool is fitted to the measuring shaft of the wheel balancer in its socket in advance.

After that, the wheel to be inspected is mounted on the main shaft of the wheel balancer.

When the inner diameter of the wheel is measured, the contactor is brought into contact with the inner end of the rim portion of the wheel, and when the outer diameter of the wheel is further measured, the contactor is brought into contact with the through hole of the disc portion of the wheel. The bent horizontal portions of the child and the arm are advanced, and the contactor is brought into contact with the outer end of the rim portion of the wheel.

[0010]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings.

Reference numeral 10 denotes a wheel measuring tool, and a socket 1 of the measuring tool 10 includes a recess 1 a for connecting to a measuring shaft 3 of a wheel balancer and a screw hole 1 b for a set screw. L-shaped arm 2 that projects in the radial direction and has its tip bent at a right angle to form a horizontal portion 2a, and a disk-shaped contactor 2b that further projects in the radial direction from the tip of the horizontal portion 2a. Are integrally formed.

The measuring shaft 3 is rotatably and movably mounted on a side plate of a support body 4 provided on the wheel balancer main body A, and the concave portion 1a of the socket 1 is fitted to the end of the measuring shaft 3. The measuring shaft 3 and the socket 1 are locked by a set screw screwed into the screw hole 1b.

Numeral 5 is a shaft gear inserted through the shaft 3 to detect the rotation angle of the measuring shaft 3, 6 is a potentiometer geared with the shaft gear 5, and 7 is a potentiometer. The potentiometers connected to the Yogear 6 are shown respectively.

Next, the operation will be described. First, the worker mounts the wheel C to be inspected on the main shaft B of the wheel balancer A.

Next, the arm 2 is advanced in the direction in which the wheel C is mounted, and as shown by the broken line in FIG. 3, the tip of the disk-shaped contactor 2b is rotated to rotate the arm 2 and the wheel 2 is rotated. The diameter of the inner rim is measured by bringing the inner edge of the rim portion of C into contact and detecting the rotation angle with the potentiometer 7.

After the measurement of the diameter of the inner rim is completed, the measuring shaft 3 is further advanced, the horizontal portion 2a of the arm 2 is inserted into the through hole of the disk portion of the wheel C, and the tip of the contact 2b is reached. The end is brought into contact with the outer end of the rim of the wheel C, and the diameter of the outer rim is measured.

As described above, after the measurement of the diameters of the inner and outer rims is completed, the worker retreats the arm 2 and then the unbalance amount and the unbalance position of the wheel C are measured.

[0018]

[Effect of device]

 As described above, according to the measuring instrument for a wheel of the present invention, since the tip of the arm is bent at a right angle and the contactor is radially provided at the tip, the disk portion has a relatively large through hole. The inside and outside diameters of the wheel can be measured with a single measuring tool, which has the effect that the structure is simple and the work can be simplified.

[Brief description of drawings]

FIG. 1 is a front view of a measuring tool according to an embodiment of the present invention.

FIG. 2 is a plan view showing a state in which the measuring tool is attached to a wheel balancer.

FIG. 3 is a front view thereof.

FIG. 4 is a side view thereof.

[Explanation of symbols]

 1 Socket 2 Arm 2b Contact 10 Measuring tool

Claims (2)

[Scope of utility model registration request] 1. A socket, and an L projecting in a radial direction from the socket and bent at a right angle at a tip portion thereof.
A measuring instrument for a wheel of a wheel balancer, comprising a character-shaped arm and a contactor that further projects radially outward from the tip of the arm. 2. The wheel measuring tool for a wheel balancer according to claim 1, wherein the contactor is formed in a disc shape.