JPS6037889B2 - automobile wheel mounting device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a fixing or mounting device for mounting a motor vehicle wheel having a rim with holes in various different arrangements on a testing machine.

As this type of device, West German Utility Model No. 188507
The one described in No. 3 is known.

This device has an adjustable conical bolt and quick clamping means to allow the rim of the wheel to be attached to the axis of the shaft. However, since this type of attachment device requires a centrally located quick clamping means, it is not possible to attach a rim without a central hole to the testing machine, as is generally the case in France, for example.

A similar drawback exists in the device of West German Utility Model No. P2424668. This is because, in the attachment device of this patent application, the conical member is engaged in the central hole of the rim, and the rim is fixed by means of a centrally arranged tightening screw. SUMMARY OF THE INVENTION The object of the invention is to overcome the above-mentioned disadvantages and to provide a wheel mounting device which allows wheels with a perforated rim, with or without a central hole, to be mounted on the shaft of a testing machine.

This object is achieved by the following configuration of the device of the invention.

That is, in the device of the present invention, the fixing hole 21 of the wheel rim 13
A conical member 8 displaceable in all directions is provided on a fixed bolt 7 projecting through the axial direction, and this conical member 8 is biased by a compression spring 11 in the direction of the rim 13 of the wheel to be tightened. , a diameter portion is provided at the tip of the bolt 7, the bolt is inserted into a hole provided in the plate 15 of the tightening member 14, and the bolt is inserted into the stepped portion 23 provided on the surface of the hole facing the wheel to be tightened. The corresponding engagement surfaces 24a are brought into abutting engagement, and the clamping member 14 has a pressing plate 17 that is pressed in the opposite direction against the wheel rim 13 by the movable member 18.
will be established. In a preferred embodiment, the carriage with bolt 7 and cone 8 mounted thereon can be displaced radially relative to the axis of rotation.

The pressing plate is pressed against the surface of the rim by the threaded member in the direction of the rim, and it is desirable that the clamping portion is provided with corrugations on its outer surface so that it can be handled easily and safely. The present invention will be explained in detail below with reference to embodiments of the drawings. Reference numeral 1 denotes a tubular support member, which is firmly attached to, for example, a mounting shaft 2 of a balance tester by known means.

A star-shaped plate 3 having a guide slot 4 is fixed to the tubular support member 1, and a carriage 5 is held in the guide slot 4 so as to be displaceable in a radial direction. A number of carriages 5 are provided corresponding to the number of holes (for example, 3, 4 or 5) provided in the rim of the wheel to be attached. Each carriage 5 has a sleeve 6
is fixed, and a bolt 7 is fixed axially in this sleeve by known means. That is, the bolt 7 is protruded such that its tip protrudes toward the wheel mounting side. A conical member 8 is mounted on the bolt 7 so as to be movable in the axial direction. The conical member 8 is provided with a large inner peripheral portion 10 in one half thereof. A compression spring 11 is interposed within this large-diameter inner peripheral portion 10 so as to be in contact with the stepped portion and the closed end surface of the sleeve 6 . This ridge 11 biases the cone 8 in the direction of the rim of the wheel to be tightened.
A small diameter engaging portion 12 is provided at the tip of the bolt 7.
A carriage 5 with bolts is preset in the rim 13 in the radial direction so as to align with bolt holes arranged along circles of various diameters.

The clamping member 14 has a plate 15 , a bell-shaped member 1 and a pressure plate 17 , which plate 17 has a screw member 18 .
allows for axial movement. The bell-shaped member 16 is preferably provided with radial corrugations 19 in order to ensure reliable and safe handling of the clamping member 14.

Holes 20 corresponding to the bolts 7 are provided in the plate 15 at different radial positions, allowing maximum utilization of this mounting device.

For each hole 20, the diameter of the arrangement circle is indicated by a numeral 22. A wheel with a rim 13 is attached to the shaft 2 of the testing machine.
In order to attach the bolt 7 to the rim 13 of the carriage 5, the diameter of the magic circle of the attachment hole 21 of the rim 13 of the carriage 5 is preset.

When the wheel is then mounted on the mounting device, the conical section 8 attached to the bolt 7 centers the wheel. Then, the rim 13 is tightened to the mounting device by the vertical mounting member 14,
The star plate 3 and the clamping element 14 are connected by means of a pivot connection. That is, the conical section 8 is forced into the bore 21 of the rim 13 by the compression spring 11, and the wheel is accurately centered with respect to the mounting device. Next, the pressing plate 17 is pressed against the rim by the threaded portion 18 in a direction opposite to the protruding direction of the bolt 7, thereby completely fixing the wheel to the mounting shaft 2. After completing the required test machine operations,
The pressing plate 17 is removed, the tightening member 14 is rotated, and the bolt 7 is pulled out and removed from the corresponding hole 20 of the fixing plate 15. In order to increase the holding capacity of the clamping element 14, especially for rotation, the bell-shaped element 16 can be provided with corrugations 19. FIG. 3 is a sectional view showing details of the insertion rotation coupling mechanism.

In order to facilitate the insertion and removal of the bolt 7 into the hole 20 of the fixing plate 15, the hole 20 is inserted into the wide middle portion 20 of the support member 15 on the side facing the wheel to be attached in the thickness direction.
a, a narrow central portion 20b on the opposite side, an intermediate central portion 20c continuous to this, and a stepped portion 23 between the portions 20a, 20b, and 20c. On the other hand, the bolt 7 has a middle flanged portion 25 at its tip extending from the large flanged portion 24 through the small diameter portion 12 .

Therefore, the tip medium diameter portion 25 of the bolt 7 is inserted into the intermediate portion 20 of the hole.
c, and the outer end surface 24 of the large diameter portion 24 of the bolt. When the stepped part 23 of the hole 20 is loosened and the plate 15 is rotated, the small diameter part 12 of the bolt 7 engages with the narrow middle part 20b of the hole 20, and the inner end surface 253 of the middle part of the tip and the large meeting part The bolt 7 and the plate 15 are connected and fixed by sandwiching the green part of the narrow part 20b of the hole 20 between the outer end surface 24a of the bolt 7 and the outer end surface 24a of the hole 24. Insert bolt 7 into hole 2
0, rotate the plate 15 in the opposite direction as described above to remove the middle part 20 of the hole 20.

What is necessary is to remove the middle part 25 at the tip of the bolt from the bolt. As described above, according to the apparatus of the present invention, a wheel having a hole in the rim can be quickly and reliably attached to and removed from a testing machine, regardless of whether or not the rim of the wheel has a central hole.

[Brief Description of the Drawings] Figure 1 is a longitudinal sectional view of an embodiment of the present invention, Figure 2 is a front view of the tightening section included in the device shown in Figure 1, and Figure 3 is a rotational view of the insertion part. FIG. 3 is an enlarged cross-sectional view showing a coupled state of bolts and plates that constitute a coupling mechanism. 2... Shaft of testing machine, 3... Star-shaped plate, 5... Carriage, 7... Bolt, 8... Conical member, 13
... rim, 15 ... plate, 16 ... bell-shaped member,
17...Press plate, 18...Screw part village. Figure 2 Figure 3 Figure 1

Claims (1)

[Claims] 1. A support member fixed to the rotating shaft after the test; a plurality of support members protruding around the shaft center and in the axial direction and passing through holes in the rim of the wheel to be attached. Bolt and;
an axially displaceable conical member that is elastically biased toward the rim of the wheel to be tightened and held, coaxially fitted into each of these bolts; the tip of the bolt is detached; a pressing member held by a bolt fixing plate having a hole that can be engaged with the rim of the wheel to be attached from a direction opposite to the protruding direction of the bolt; and a pressing member attached to the surface of the rim. 1. A mounting device for an automobile wheel, comprising: a tightening means having a means for biasing the vehicle. 2. The vehicle wheel attachment device according to claim 1, wherein the bolt provided with the conical member is displaceable in a radial direction with respect to the axis of the support member. 3. The vehicle wheel mounting device according to claim 1 or 2, wherein the tightening means includes a bell member having a radial waveform.