JPH0814880A - Detection set device for measuring diameter of wheel in tire mounting device - Google Patents

Abstract

PURPOSE:To provide a device for detecting a diameter of a wheel and for holding the wheel in a tire mounting device which can detect a diameter of a wheel. CONSTITUTION:A wheel diameter detection set device comprises a receiving bed 2 on which a wheel 7 and a tire are set, a center cone 3 provided just above the receiving bed 2, and tire mounting means 4a, 4b for mounting the tire onto the wheel 7, the receiving bed 2 being raised of the center cone 3 being lowered so that the tire mounting means 4a, 4b fit the tire onto the wheel 7, contact elements 6 in paris which are arranged at the front and rear of the receiving bed 2, symmetric with respect to the center line of the receiving bed 2 and which are movable in parallel with each other, and a position detecting means for detecting the moving positions of the contact elements 6.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wheel diameter detecting and setting device for a tire mounting device for mounting a tire on a wheel of an automobile or the like.

[0002]

2. Description of the Related Art In a production line or the like in which wheels of various diameters flow, it is necessary to confirm the wheel diameters in order to mount tires suitable for the respective wheel diameters.

Therefore, conventionally, a wheel is placed on an ascending / descending pedestal, and the outer diameter of the wheel is detected by a circular motion of the left and right levers on a fixed portion of the tire mounting apparatus. After the tire is placed on the upper wheel, the pedestal rises and the center cone provided directly above the pedestal fits into the center hole of the wheel, and then the tire is mounted on the wheel by the tire mounting means. Things are known.

[0004]

According to this conventional device, the wheel outer diameter detection structure is restricted by the size of the wheel due to the arc movement of the lever.

Further, in the case of a small-diameter tire, when the lever is opened after the diameter is detected, the lever is tilted inward, which causes a problem of kicking the tire into the rim hole of the small-diameter tire.

Further, although the outer diameter of the wheel is detected and the outer diameter of the wheel is measured, the center of the wheel is aligned with the center of the pedestal at the same time. There is a problem in that center deviation may occur, and when center deviation occurs, the center cone does not enter the hub hole of the wheel and the wheel is damaged.

An object of the present invention is to solve these problems and to provide a wheel diameter detecting and setting device for a tire mounting device which detects the wheel diameter and is free from center deviation.

[0008]

In order to achieve the above object, the present invention provides a pedestal on which a wheel and a tire are placed, a center cone provided directly above the pedestal, and a tire for mounting the tire on the wheel. A tire mounting device comprising mounting means, which raises the pedestal or lowers the center cone to fit the center cone into the center hole of the wheel, and then mounts the tire on the wheel by the tire mounting means. , A pair of contacts are provided on the pedestal so as to be movable parallel to each other symmetrically with respect to the center line of the pedestal from the front and the back of the pedestal, and position detecting means for detecting a moving position of the contact is provided. It is characterized by having done.

[0009]

According to a first aspect of the present invention, there is provided a wheel diameter detecting and setting device for a tire mounting apparatus, wherein each pair of contact elements that can be moved symmetrically in parallel with respect to a center line of a pedestal is provided and the moving positions of these contact elements are detected. By providing the position detecting means for adjusting the center of the wheel, the outer diameter of the wheel can be detected.

In the wheel diameter detecting and setting device of the tire mounting apparatus according to claim 2, the contactor is provided with a holding means for holding the wheel on the pedestal by making the center of the wheel coincide with the center of the pedestal. By doing so, the wheel can be reliably centered and held on the pedestal.

According to a third aspect of the present invention, in the wheel diameter detecting and setting device of the tire mounting device, the parallel moving means is constituted by connecting the rotation driving device to the sprocket having the chain, so that it can be made compact and simple. You can

In the wheel diameter detecting and setting device of the tire mounting device according to the fourth aspect, the moving position is directly measured by using a detector attached to the chain and a position sensor that operates by facing the detector as position detecting means. Can be detected.

In the wheel diameter detecting and setting device of the tire mounting apparatus according to the fifth aspect, the moving position can be accurately detected from the rotation angle by using the rotary encoder as the position detecting means.

[0014]

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

In FIG. 1, reference numeral 1 denotes a substantially U-shaped tire mounting device main body, 2 is a pedestal provided at the center of a base below the tire mounting device 1 and on which wheels and tires are mounted and which is moved up and down.
3 is a center cone provided directly above the cradle 2 and 4a
And 4b are tire mounting means for reciprocatingly rotating in a semi-circular shape provided on the shaft of the center cone 3 to mount the tire on the wheel, and 5 for moving the wheel or the like provided on the left and right of the pedestal 2. 2 shows a plurality of rollers.

Reference numeral 8 denotes a hydraulically driven rotary cylinder. A gear 9a is attached to the rotary shaft of the rotary cylinder 8, the gear 9a meshes with a gear 9b, and the gear 9b meshes with a gear 9c having the same number of teeth. So that they rotate in opposite directions, and the sprocket 10a is attached to the gear 9b.
The sprocket 10b is attached to the gear 9c via the connecting shaft 12b, and the left sprocket 10c is attached to the other end of the connecting shaft 12a. Similarly, the sprocket 10c is attached to the connecting shaft 12b. The sprocket 10d on the left side is attached to the sprockets 10a, 10
b, 10c, 10d and the sprockets 10, which are axially supported at intervals from these sprockets as shown in FIG. 3, respectively, a chain 11 is stretched, and contacts 6a, 6b, 6c, 6d are respectively attached to the chains 11. Installed.

Then, these contacts 6a, 6b, 6c, 6
d is four long holes 2a formed on the upper surface of the pedestal 2.
More prominently.

Since the connection shaft 12a connects the contacts 6a and 6c to each other, and the connection shaft 12b connects to the contact shafts 6b and 6d, the contacts 6b and 6d form a pair. Then, the rotary cylinder 8 is driven to move in parallel.

The position detecting means of the contacts 6a, 6b uses a photoelectric switch or a proximity switch as a position sensor if it is a portion which moves linearly, and a mark of a long plate-shaped detector 13a attached below the contacts 6b. Photoelectric switch 1
3 or the rotary encoder 14
The position of the contact may be detected from the rotation angle by interlocking with the rotating body such as the gear 9a.

Next, the operation of one embodiment of the present invention will be described.

As shown in FIG. 2, the contactor moves in parallel to different wheel diameters such as 15 inch 7a, 14 inch 7b and 12 inch 7c to perform centering and diameter detection.

That is, when the wheel 7 is placed on the pedestal 2, the rotary cylinder 8 is rotationally driven and the gear 9a,
The sprockets 10a, 10b, 10c and 10d are simultaneously rotated at the same speed via 9b and 9c and the connecting shafts 12a and 12b, and the contacts 6a, 6b, 6c and 6 are connected via the chain 11.
When d is moved toward the center of the pedestal 2 while maintaining an equal distance, and when these contacts 6a, 6b, 6c, 6d come into contact with the outer circumference of the wheel 7, one of the marks of the detector 13a Is detected by the photoelectric switch 13 or the diameter of the wheel is detected from the rotation angle of the rotary encoder 14 and displayed on the display device.

Further, as described above, the contacts 6a, 6b, 6c, 6
Since d contacts the outer periphery of the wheel 7 while maintaining the same distance toward the center of the pedestal 2, even if the center of the wheel 7 is displaced from the center of the pedestal 2, the wheel 7 is The center is set to match the pedestal 2.

In this manner, for example, the wheel 7 having a diameter of 15 inches or 12 inches is detected and tires adapted to the respective diameters are supplied, and the tire is placed on the wheel 7 and the pedestal 2 is raised.

Even when the pedestal 2 is raised, the contacts 6a, 6
Since b, 6c and 6d hold the wheel 7, the wheel 7 does not shift from the center position.

When the pedestal 2 is raised, the center cone 3 is fitted in the hub hole at the center of the wheel 7, and although not shown, the tire is radially expanded by the tire mounting means 4a and axially by the tire mounting means 4b. Press on and attach to the wheel 7.

Although not shown in the drawings, as another embodiment, the parallel moving means of the contactor may be such that two pairs of contactors are connected to two hydraulic cylinders.

Although not shown, as another embodiment, the pedestal 2
Center cone 3 and mounting means 4a, 4
b may fall.

[0029]

As described above, according to the present invention, since tires adapted to wheels of various diameters are mounted, the contactor moves in parallel on the pedestal, so that the wheel diameter can be detected and the center can be adjusted at the same time. By holding the wheel with the contact, there is an effect of preventing the center deviation due to vibration and weight of the tire when the pedestal rises, and preventing the wheel from being damaged by the center cone.

[Brief description of drawings]

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

FIG. 2 is a plan view of the pedestal.

FIG. 3 is an explanatory diagram of a mechanism of a main part thereof.

[Explanation of symbols]

 1 tire mounting device main body 2 pedestal 2a long hole 3 center cone 4a tire mounting means 4b tire mounting means 6a, 6b, 6c, 6d contactor 7 wheel 8 rotary drive device 10a, 10b, 10c, 10d sprocket 11 chain 13 position sensor 13a Detector 14 Rotary encoder

Claims (5)

[Claims] 1. A pedestal on which a wheel and a tire are placed, a center cone provided right above the pedestal, and tire mounting means for mounting a tire on the wheel, and the pedestal is raised or In a tire mounting device for lowering the center cone to fit the center cone into the center hole of the wheel and then mounting the tire on the wheel by the tire mounting means, a pair is provided on the receiving base from the front and rear of the receiving base. The diameter of a wheel of a tire mounting device, wherein the contactor is provided so as to be able to move symmetrically in parallel with respect to the center line of the pedestal, and a position detecting means for detecting the moving position of the contactor is provided. Set device. 2. The contactor comprises holding means for holding the wheel on the pedestal by aligning the center of the wheel with the center of the pedestal. Wheel diameter detection setting device for tire mounting device. 3. A chain in which the parallel moving means of the contact is hung between sprockets and to which the contact is attached,
The wheel diameter detection setting device of the tire mounting device according to claim 1, comprising a rotary drive device connected to the sprocket. 4. The wheel of a tire mounting apparatus according to claim 3, wherein the position detecting means includes a detector attached to the chain and a position sensor that operates when the detector is in an opposing position. Diameter detection set device. 5. The wheel diameter detecting means setting device for a tire mounting apparatus according to claim 1, wherein the position detecting means comprises a rotary encoder connected to the sprocket.