JPH06270619A - Tire mounting device - Google Patents

Abstract

PURPOSE:To provide a tire mounting device whose configuration is simplified and with which installation is facilitated. CONSTITUTION:A tire mounting device comprises a rotary table 2 on which a wheel A is placed, a vertical roller 4 to expand a tire B installed over the table 2 in the radial direction of the wheel A, and a transverse roller 6 to press the tire B in the axial direction of the wheel A, wherein the vertical roller 4 is fitted with a sensing means 5 to sense the gap between the oversurface of the wheel A and the tip of the vertical roller 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tire mounting device in which a tire is mounted on a wheel of a vehicle such as an automobile.

[0002]

2. Description of the Related Art Conventionally, a tire mounting device is provided with a cylinder, and a contact is provided at a tip end portion of a shaft which interlocks with the cylinder, and after detecting a gap between the contact and the upper end surface of the wheel by a proximity switch, the tire diameter is measured. The tire is mounted on the wheel by operating a vertical roller that expands in the direction to expand the tire and press the tire in the axial direction of the wheel by the horizontal roller.

[0003]

However, in the case of incorporating the above-mentioned conventional tire, since the detection mechanism is separately provided for the tire mounting device, the device becomes expensive and complicated, and the detection mechanism and the vertical roller are of the wheel type. Since they are arranged side by side in the circumferential direction, there is a problem in that the rotational movement of the vertical roller is limited by the space occupied by the detection mechanism, and the efficiency of incorporating the tire into the wheel is reduced.

It is an object of the present invention to solve the above problems and to provide a tire mounting device which simplifies the device and facilitates installation.

[0005]

In order to achieve the above object, the present invention is directed to a table on which a wheel is placed and held and rotated, and a tire provided above the table is expanded in the radial direction of the wheel. In a tire mounting device having a vertical roller and a horizontal roller that presses the tire in the axial direction of the wheel, the vertical roller is provided with a detection unit that detects a gap between the upper surface of the wheel and the tip of the vertical roller. It is characterized by that.

[0006]

The detecting means provided on the vertical roller for expanding the tire detects the gap between the upper surface of the wheel and the tip of the vertical roller, and positions the vertical roller at an appropriate gap on the upper surface of the wheel. The tire is pressed against the periphery of the wheel by the lateral rollers while expanding the tire in the radial direction.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS.

Reference numeral 1 denotes a pedestal, which is composed of a rectangular parallelepiped casing 1a, and a table 2 for mounting and fixing a wheel A is provided on the casing 1a, and the table 2 is illustrated. It rotates by a drive motor that does not exist and moves up and down by the foot pedal 1b.

Reference numeral 3 denotes a support, which is vertically and horizontally arranged by a support cylinder 1c standing on the casing 1a and a T-shaped holder 1d fitted to the support cylinder 1c. It is formed to be movable.

Reference numeral 4 denotes a vertical roller, which is supported by a cylindrical body 4b fixed to an L-shaped first support plate 4a screwed to a mounting plate 3a fixed to the support body 3. Is
It is rotatably formed by the bushes 4c and 4c.

Then, the bush 4 is provided in the vertical roller 4.
The shaft 5b is vertically rotatably and rotatably inserted through d and 4d, and the air cylinder 5d is fixed to the mounting plate 3a through the second support plate 4e. The upper end of the shaft 5b is fixed to the air cylinder 5d. The contact 5a is fixed to the lower end of the shaft 5b and is operated when the contact 5a reaches the lower limit position of the wheel A and when the contact 5a reaches the proper position. Position sensors 5e and 5f, which are proximity switches, are provided near the upper end of the rod 5c, and the contactor 5a and the position sensors 5e and 5f are provided.
The detecting means 5 is constituted by

Reference numeral 6 denotes a horizontal roller, which is formed in a truncated cone shape and is rotatably supported by a shaft 6a and fixed by a third support plate 6b so as to be vertically movable with respect to the mounting plate 3a. Has been done.

Reference numeral 7 denotes an adapter for holding and fixing the wheel A, which can be fixed to the center of the table 2 by a spindle 8.

Incidentally, B represents a tire.

Next, the operation of the above embodiment will be described.

First, the air cylinder 5d is operated to lower the contactor 5a, and the contactor 5a is placed in the lowering limit device where the proximity switch 5e operates.

Then, the table 2 is lowered by the foot petal 1b to mount the wheel A and the tire B on the adapter 7, and the spindle 8 drives the wheel A and the tire B.
Fix at the center position of.

Next, the table 2 is moved up by the foot pedal 1b, and the wheel A rises accordingly, and the wheel A further rises while raising the contactor 5a on the upper surface thereof. When 5a reaches the proper position, the proximity switch 5f operates to stop the upward movement of the table 2. Then, the table 2 is rotated by a drive motor (not shown), the vertical roller 4 extends the tire B, and the horizontal roller 6 presses the tire B to mount the tire B on the wheel A.

If the gap between the vertical roller 4 and the upper surface of the wheel A becomes large during the mounting and the proximity switch 5e is activated, the operation is stopped and the gap is readjusted so that the gap becomes proper. .

Since the detecting means 5 is provided on the vertical roller 4, the detecting means 5 does not take up a space and the rotational movement of the vertical roller 4 is not restricted.

In the present embodiment, the gap between the upper surface of the wheel A and the vertical roller 4 is detected by the proximity switches 5e and 5f, but it can be detected by a differential transformer or other detecting means.

[0022]

As described above, according to the present invention, since the detecting means for detecting the gap between the upper surface of the wheel and the tip of the vertical roller is provided on the vertical roller, it is not necessary to separately provide the detecting means. The device can be simplified, the exclusive space for the detecting means is eliminated, and thus the rotational movement of the vertical roller is not restricted, so that the tire can be safely and easily incorporated.

[Brief description of drawings]

FIG. 1 is a front view of an embodiment of the present invention.

FIG. 2 is an enlarged partial cross-sectional view of an essential part of FIG.

[Explanation of symbols]

 2 Table 4 Vertical roller 5 Detection means 5a Contactors 5e and 5f Position sensor 6 Horizontal roller A Wheel B Tire

Claims (2)

[Claims] 1. A table on which a wheel is placed and held to rotate, a vertical roller provided above the table to expand a tire in the radial direction of the wheel, and a lateral roller for pressing the tire in the axial direction of the wheel. A tire mounting apparatus having a roller, wherein the vertical roller is provided with a detection unit that detects a gap between an upper surface of the wheel and a tip portion of the vertical roller. 2. The detecting means comprises a contactor provided on the lower end of the shaft of the vertical roller and contacting the upper surface of the wheel, and a position sensor provided above the shaft. The tire mounting device described.