JPS63125403A - Adhesive assembly wheel for vehicle - Google Patents

Abstract

PURPOSE:To simplify manufacture of wheels of a variety of designs and shapes by assembling a joining part of a disc and each of the front and the rear rims located its outer circumferential part in a body with tightening a common bolt through a hardening type adhesive. CONSTITUTION:An aluminum alloy disc 1 is so constituted that an axle hole 1c is formed on the central part and a projecting piece 1a on the circumferential end, and that a hole 1b for fitting of a bolt is provided at an appropriate position on the projecting piece 1a. And each of the rear and the front rims 2 and 3 installed on this disc 1 are formed in the ringed shape with the cross section of approximately the letter 'S' respectively and so constituted that projecting parts 2a and 3a for stopping the tire are provided on one end and joining parts 2b and 3b on the other end, and holes 2c and 3c for inserting of bolts are provided on each of the joining parts 3a and 3b. And for the assembly of a wheel 6, first, an epoxy resin type adhesive 5 is applied to the contact part of the joining parts 2b and 3b and the projecting piece 1a, a bolt 4 is inserted into each of the holes 1b, 2c and 3c and this is tightened to finish the assembly.

Description

[Detailed description of the invention] The present invention relates to adhesively assembled wheels for vehicles.

Conventionally, vehicle wheels for automobiles have been either one-piece wheels that are integrally cast, or two-piece wheels that are made up of separately machined discs and rims.

However, it has not been able to adequately accommodate the variety of designs and shapes that can be packaged.

The present invention has been made as a result of studies in view of the above points, and the front rim and rear rim, which are composed of a disk having a protruding piece at the peripheral end and a ring body having a substantially S-shaped cross section, are fastened with adhesive and bolts. This invention relates to an adhesive assembly wheel for a vehicle that is assembled in one piece.

Next, the present invention will be explained based on examples. Figure 1 shows an automobile wheel (6) in which an aluminum alloy disc (1), front rim (2), and rear rim (3) are integrally joined with adhesive (5) and bolts (4). Illustrated. The disk (1) has an axle hole (lc) in the center and a protruding piece (1a) on the peripheral edge, and a hole (1b) for inserting a bolt is bored in the appropriate position of the protruding piece (1a). ing. The rear rim (2) and the front rim (3) are ring bodies each having a substantially S-shaped cross section, with a protrusion (2a) and a protrusion (3a) for tire stop at one end, and a joint at the other end. Part (2
b) and a joint (3b), said joint (3a)
Holes (2c) and (3c) for inserting bolts are bored in (3b).

The front rim (31, tt rear rim (2) and the disc (1) are the joint part (3b), the joint part (2b
) and the contact portion of the protruding piece (1a) with an epoxy resin adhesive (5), and the bolt (4) is inserted into the core hole (1bX2c) and (3c) for bolt insertion and tightened. The wheels (6) are assembled together. This wheel (6) and a wheel using the same disc, rear rim, and front rim as in the embodiment shown in Fig. 1, and assembled integrally by tightening bolts without using adhesive, were manufactured by the Japan Society of Automotive Engineers of Japan. Light alloy disc wheel
As a result of the test specified in the radial load durability test (a test method in which a wheel with a tire attached to a rotating drum is continuously rotated while being pressed under load and durability is evaluated by the number of rotations until an abnormality occurs), the former was 35. The latter lasted up to 11,000 cycles (discontinued when the adhesive cracked) and 65,000 cycles (discontinued when the bolt broke).

FIG. 2 shows another embodiment of the present invention, using the same disc (7), rear rim (9) and front rim (8) as in FIG. Adhesive αC mixed with 15% by weight of
The disk (force protruding piece (7a), the joint part (9b) of the rear rim (9), the joint part (8b) of the front rim (8)
), and tightened with bolts (b) to assemble the wheel α in one piece, and then spread it over a width of 3 cm near the joint surface of the rear rim (8) and the front rim (9)) The adhesive QO was applied. If an adhesive reinforced with a reinforcing material made of fiber material is used in this way, the adhesive strength and toughness of the joint can be greatly improved. The wheel (2) of the example shown in FIG. 2 lasted up to 725,000 cycles in the radial load durability test (the test was discontinued due to cracks in the rear rim).

Wheel parts are made from materials such as aluminum alloy, stainless steel, steel plates, and reinforced plastic snacks, and even if these parts are made from one type of material, they may be made from multiple materials. I don't mind.

For adhesion of parts, it is preferable to use a hardening adhesive such as epoxy, urethane, polyimide, or polyester, which has excellent adhesion, heat resistance, and durability.As in the above example, synthetic fibers or carbon fibers can be used as reinforcing materials in the adhesive. If adhesives are used that do not contain reinforcing materials such as non-woven fabrics or cloths processed from these fiber materials, the tear strength and tensile strength of the adhesive layer may be affected. Strength,
Splitting strength etc. are greatly improved, making it tougher and providing high quality. Furthermore, it is preferable to use an adhesive having a heat resistance of 150° C. or higher especially for wheels used for high-speed driving such as racing.

The adhesive assembly wheel for a vehicle according to the present invention is made by assembling the three components of the disc, rear rim, and 70-inch rim together with adhesive and bolts, so it can accommodate the use of these components in a wide variety of designs and shapes. . Because it is joined by adhesive, it is possible to use reinforced plastic wheel parts that cannot be used with welding, and it also eliminates problems such as thermal distortion, poor balance, and poor airtightness at the joints that were problems with assembled wheels using welding. Problem resolved.

[Brief explanation of the drawing]

Figure 1 shows that the disc (1), rear rim (3) and front rim (2) are bonded using epoxy resin adhesive (5).
) and tightened with bolts (4) to assemble the assembled wheel (6) for a vehicle according to the present invention. The joint is glued with adhesive α0 and bolt α])
The epoxy resin adhesive α is applied near the joint surfaces of the rear rim (9) and the front rim (8).
0 is a partial sectional view of an adhesive assembly wheel member for a vehicle according to the present invention coated with

Claims (2)

[Claims] (1) A disk having a protruding piece (1a) with a hole (1b) for bolt insertion at the peripheral end, and a disk having a substantially S-shaped cross section and holes (2c) (3c) for bolt insertion. ) are provided on the contact surfaces of the protrusion piece (1a), the joint part (2b), and the joint part (3b). An adhesive assembly wheel for a vehicle, characterized in that a curable adhesive is applied, and bolts are inserted into the holes (1b), (2c), and (3c) and tightened to be integrally assembled. (2) The adhesive assembly wheel for a vehicle according to claim 1, characterized in that a curable adhesive reinforced with a reinforcing material is used.