JP2588675Y2 - Resin wheel cap - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a resin wheel cap for protecting the surface of a metal or light alloy wheel and enhancing the design effect. The purpose is to prevent peeling from the surface.

[0002]

2. Description of the Related Art A conventional general resin wheel cap for covering the surface of a metal or light alloy wheel finishes the surface of the wheel cap into a unique design, and the back surface is sufficiently overlapped with the disc surface of the wheel. As shown in FIG. 2, a resin wheel cap 25 is formed on the entire surface of the disk 26 having a hub hole 27 at the center thereof except for the hub hole 27 as shown in FIG. And an inner peripheral surface from the bead seat portion 29 to the flange 30 of the rim 28 via an adhesive.

[0003]

However, the portion from the disc surface of the wheel or the flange of the rim to the bead seat has an extremely complicated shape, and because of the undulation, the thickness of the wheel cap 25 is inevitably increased. As a result, the amount of resin used increases and the weight often increases. This not only increases the material cost of the wheel cap, but also increases the weight of the wheel.

Also, when the back surface of the wheel cap is formed into a complicated shape in accordance with the irregularities in the surface properties of the disc, the wheel cap is made of resin. Variations are likely to occur and the product yield is poor. In addition, unevenness is generated on the back surface of the wheel cap with respect to the disk surface of the wheel having severe irregularities, so that the bonded portion is easily peeled off.

[0005]

SUMMARY OF THE INVENTION Accordingly, the present invention solves the above-mentioned various problems in the prior art, and reduces the weight and cost, and improves the durability by eliminating the room for partial deformation stress generation. Specifically, a resin cap having a size and shape that covers the surface of the wheel except for a portion near the center hub hole, and a rear surface attached to the wheel surface. Wherein the cap comprises a front surface portion and a back reinforcing portion, wherein a fixed space is formed between the front surface portion and the reinforcing portion, and both are integrally fixed. To a resin-made wheel cap.

The present invention also relates to a resin material in which a space is formed between a surface portion and a reinforcing portion by using a protrusion or a ridge formed on at least one of a back surface portion and a reinforcing portion front surface as a spacer. Also relates to wheel caps.

[0007]

According to the present invention, the presence of a certain space formed between the front surface portion and the back reinforcing portion allows the front surface portion and the back reinforcing portion to be relatively thinly molded, respectively. Results In the molding process of the front side surface part, even if there is a slight deviation in dimensions, this does not directly affect the back side reinforcement part, so the back side reinforcement part itself is relatively thin Not only is it easy to adjust to the surface of the wheel, but also because it is not affected by the deformation of the surface portion, it can be completely adhered to the surface of the wheel.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The specific contents of the present invention will be described below with reference to the embodiment of FIG. 1. Reference numeral 1 denotes a reinforcing portion made of urethane resin, and 5 denotes a fixed space 10 with respect to the reinforcing portion 1. The surface portion also made of urethane resin, which is superimposed through the intermediate portion. The reinforcing portion 1 is sized and shaped so as to cover the surface of the disk 11 of the wheel except for the central hub hole 12, forms an air hole 2 at an appropriate place, and has a space between the reinforcing portion 1 and the surface portion 5. Protrusions 3 are protruded at appropriate intervals in the circumferential direction toward the above-mentioned surface portion 5 at appropriate locations of the portion where the portion 10 is formed, and a concave portion 4 is provided at an end near the rim 14. Similarly, they are formed at appropriate intervals in the circumferential direction, or are formed continuously in the circumferential direction.

The surface portion 5 is formed in a size and shape to cover the surface of the disk 11 of the wheel except for the central hub hole 12, and the inner peripheral side thereof is formed in the hub hole 1 of the reinforcing portion 1.
An end face 5a is formed so as to be overlapped with the end face 1a, which is closer to the second end, and a rim flange 15 of the wheel is provided on the outer peripheral side.
A foot piece 6 having a projection 7 projecting from the front end along the bead sheet 16 is formed endlessly in the circumferential direction. Further, between the end face 5a and the foot piece 6, the reinforcing portion described above is provided. The projections 8 corresponding to the one projection 3 are also provided at appropriate intervals in the circumferential direction.

In the above configuration, first, the reinforcing portion 1 is
An adhesive is applied to the back surface, and is adhered and fixed to the surface of the disk 11 and a part of the rim 14 over a part of the bead sheet 9. In this case, if air remains on the back surface of the reinforcing portion 1, the air can be easily released from the air hole 2. Next, the surface portion 5 is overlapped with the end surface 5a on the end surface 1a of the reinforcing portion 1 and the projection 7 formed at the tip of the foot piece 6 is forcibly fitted into the concave portion 4 of the reinforcing portion 1 as shown in FIG. As shown, a fixed space 10 is formed between the surface portion 5 and the reinforcing portion 1 and both are integrally fixed. In this case, the projection 8 of the surface portion 5 and the projection 3 of the reinforcing portion 1 are opposed to each other in a state of abutting each other.

Further, the means for forming the space 10 is not limited to the structure in which the projections 3 and 8 are brought into contact with each other as described above. Alternatively, a protrusion may be formed on only one of them to function as a spacer. Further, instead of the projections 3 and 8, it is also possible to use ridges that are respectively continuous in the circumferential direction.

[0012]

[Effect of the Invention] As described above, the present invention is a resin cap having a size and shape that covers the surface of the wheel except for the portion near the center hub hole, and the back surface of which is attached to the wheel surface. In the above, the cap is composed of a front surface portion and a back reinforcing portion, and a fixed space is formed between the surface portion and the reinforcing portion to integrally fix them. In addition, the weight of the wheel cap can be significantly reduced, and the amount of resin used can be reduced, so that the cost can be reduced, and peeling from the disk due to partial deformation stress in the manufacturing process. Since no occurrence occurs, the durability can be improved.

[Brief description of the drawings]

FIG. 1 is a partially enlarged sectional view showing a state in which a resin wheel cap according to an embodiment of the present invention is mounted.

FIG. 2 is a partially enlarged sectional view showing a state where a conventionally known resin wheel cap is mounted.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Reinforcement part 2 Air hole 3 Projection 4 Depression 5 Surface part 5a End face 6 Foot piece 7 Projection 8 Projection 9 Bead sheet 10 Space part 11 Disk 12 Hub hole 13 Hub contact surface 14 Rim

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-62-157803 (JP, A) JP-A-62-157804 (JP, A) JP-A-62-178401 (JP, A) JP-A-4- 197801 (JP, A) Japanese Utility Model 4-4-50101 (JP, U) (58) Fields surveyed (Int. Cl. ⁶ , DB name) B60B 7/00-7/06

Claims (2)

(57) [Scope of request for utility model registration] 1. A resin cap having a size and a shape covering a surface of a wheel except for a portion near a center hub hole, and having a rear surface adhered to a wheel surface. A resin wheel cap comprising a front surface portion and a back reinforcing portion, wherein a fixed space portion is formed between the front surface portion and the reinforcing portion and both are integrally fixed. 2. The method according to claim 1, wherein the formation of the space between the surface portion and the reinforcing portion is such that the protrusion or the ridge portion formed on at least one of the back surface of the surface portion and the front side of the reinforcing portion is used as a spacer. Item 4. The resin wheel cap according to item 1.