JPH0332903A - Wheel cap - Google Patents

Abstract

PURPOSE:To make attachment and detachment of a center cap simple and sure by forming engaging parts composed of projections and the like engaged with each other according to rotation of the center cap in a joining between the center cap and a base cap for building up wheel cap. CONSTITUTION:A center cap 1 is detachably attached to a base cap 9 so as to form wheel cap H. In this occasion, after lockers 2 of the center cap 1 are inserted into through holes 10 of the base cap 9, the center cap 1 is turned in C direction, and lockers 2 are moved into guide channels 15 first. Next, the projection 6 of each locker 2 is made to abut on the projection 16 of an arm 12. Then, the projection 6 climbs over the projection 16 while pushing the arm 12 inward in the radial direction, and the projection 16 is engaged with the locking part 8 of the locker 2. As a result since, the arm 12 is bent and held in that state, the locker 2 is pressed outward in the radial direction, the center cap 1 is prevented from rotating, and together therewith the base cap 9 is held in pinched.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a hub cap made of resin, metal, or a combination thereof, which is attached to the wheel of an automobile, particularly a passenger car.

[Conventional technology]

In recent years, many of the wheel caps attached to automobile wheels have complicated shapes, and many hub caps are made up of multiple parts.

Conventionally, this type of wheel camp has either provided a through hole (5) in the center cap (4) and fixed it to the base cap (2) with bolts, as shown in Figure 8 (A).
Or as shown in Figure 8 O), the center cap @
And the structure was such that the base cap @ was fixed with a threaded space between them.

[Problem to be solved by the invention]

However, with a structure in which the center cap wing is fixed with bolts (2) as shown in Fig. 8 (a), a tool is required to turn the bolt, and it is time-consuming to install and remove it. There was a problem that if the bolt was lost, it could not be attached or detached.

In addition, with a structure in which the center cap holder is screwed into the base cap holder, as shown in Fig. 8 (0), it is necessary to provide a gap between the threaded parts, which requires processing time and increases production costs. If there is a gap between the points or threads, the center cap (4) may not turn and may not be able to be attached or removed.Also, since it is fixed with screws, the center cap (2) may come loose while driving. There was a problem with it coming off.

[Means to solve the problem]

The present invention has been made to solve the above problems, and is a wheel cap comprising a base cap that is removably attached to a disc of a wheel, and a center cap that is removably attached to the base cap. , the center cap has a center cap main body having a fitting part at the lower end, a flange provided at the upper part of the fitting part of the center cap main body, and a flange provided at the lower end of the fitting part, and a locking part on the inner surface. The base cap includes a base cap main body and a plurality of fasteners provided on the lower surface of its outer periphery. The base cap main body has a through hole for inserting the locking tool of the center cap, a guide through hole that communicates with the through hole, and a guide through hole that has a tip that engages the center cap. It has an engaging part that engages with the stopper,
The present invention also provides a wheel cap comprising a guide arm projecting in the circumferential direction of the base cap.

C Effect] When the center cap is rotated after inserting the locking tool of the center cap into the through hole of the base cap, the locking tool moves to the guide through hole. In this position, movement of the center cap in the axial direction is stopped by the base cap being held between the claw portion and the collar.

Furthermore, when the center cap is rotated, the locking part provided on the inner surface of the locking tool engages with the engaging part of the guide arm protruding into the guide through hole of the base cap, and the center cap moves in the rotational direction. can be stopped.

Since the arm has a spring effect, it acts to press the leg piece radially outward, and although the engagement between the locking part and the engaging part can be manually released, it may become disengaged due to vibrations during running. There is no.

〔Example〕

Hereinafter, one embodiment of the present invention will be described based on the drawings.

Figure 1 (a) I As shown, the center cap (1)
is removably attached to the base cap (9) to form a wheel cap (H).

As shown in Figure 2 (a) to ), the center camp (
1) is a substantially cup-shaped cap body having a fitting part (3) at the lower end, and a fitting part (3) of the cap body 0b.
It consists of a collar (7) provided on the upper part of the fitting part (3), and a plurality of locking tools (2) provided at the lower end of the fitting part (3).

The locking tool (2) has a leg piece (4) that projects in the axial direction from the fitting part (3), and a claw part (5) that projects radially outward from the tip of the leg piece (4). It is formed in a truncated shape in cross section, and two arcuate protrusions (6) are provided in the circumferential direction on the inside of the leg piece (4) to form a valley between them, and by this valley, It constitutes a locking portion (8).

@As shown in Figure 3 (a) and (a), the base cap (
9) is a disc-shaped cap body (4) with an opening in the center.
and a plurality of attachment portions α provided on the lower surface of the outer peripheral edge of the cap body (4).

Note that this attachment part 0 country is used for attachment to a wheel.

A dish-shaped recess (2) is formed in the cap body (4) and has a diameter a that is approximately equal to the outer diameter A of the fitting portion (3) of the center cap (1). In addition, the above recess (
2), a plurality of through holes α through which the claw portions (5) of the locking tool (2) are inserted are provided. Furthermore, a plurality of guide through holes αυ are provided on the outer circumference of the recess (2) so as to communicate with the through hole α and extend in the circumferential direction of the recess (2). .

Further, a guide arm (2) is provided that protrudes in the circumferential direction of the guide through hole αυ, and a guide groove 0■ is formed between the guide arm (2) and the wall surface α of the through hole αD. .

An engaging portion α having a protrusion α is formed at the tip of the guide arm (2).

Next, the center cap (1) configured as above
The fixing structure of the base cap (9) will be explained.

Figure 4 (a) and (b) are respectively center caps (1)
FIG. 2 is an explanatory diagram of the base cap (9) seen from the bottom.

P, sea urchin, base cap 77' (
The center cap (1) locking tool (
2) and then rotate the center cap (1) in the direction of arrow C, so that the locking tool (2) aligns with the guide groove Q.
Move to Inauchi.

As the rotation continues, the locking tool (
The protrusion (6) of 2) comes into contact with the arm (6), and the protrusion (6) of the arm (
2) while pushing it radially inward to get over the protrusion αO, and as shown in Figure 4 O), the protrusion αe of the arm (2) engages with the locking part (8) of the locking tool (2). be done.

At this time, the arm (2) is held in a slightly bent state, so the locking tool (2) is pressed outward in the radial direction, and the center cap (1) is stopped from moving in the rotational direction. , the base cap (9) is held between the claw part (5) of the locking tool (2) and the lower surface of the collar (7), and the center camp (1) is stopped from moving in the axial direction, and the center camp (1) is stopped from moving in the axial direction. cap' (1) and base cap l/ (9) 75(
It is fixed.

In addition, from the point of view of workability, the claw part (5) and the collar (7) are designed so that the center camp (1) can be easily rotated.
The thickness of the base cap (9) is formed thinner than the interval between
It is better to provide a small gap, but in the fitted state,
If you want to obtain a strong fixation, as shown in Figure 5, attach the claw part (5) and collar (7)
It is also possible to make the plate thicker or to provide a crimped part α wing to which a plate material is fixed, at the end of the portion opposite to the protrusion rm, which is sandwiched between the plate and the protrusion rm.

In addition, some play may occur between the center cap (1) and the base cap (9) after long-term use, but as shown in Figure 2J6, the recess (2) of the base cap (9) By forming a shelf over the entire circumference and attaching an O-ring to the shelf, the elasticity and frictional force of the O-ring can be used to prevent backlash and loosening.

Furthermore, the shape of the arm (2) or the arm (2) is not limited to the embodiment described in E. For example, as shown in FIG. 7(A), the tip of the arm (2) may be A notch is formed, a protrusion @ is provided on the locking tool (2) to form a locking part (8), and the protrusion (4) is engaged with the notch □□□. Some l/\ is shown in Fig. 7 (
As shown in b), it is also possible to provide the arm (2) on the terminal end side of the guide groove α0.

〔Effect of the invention〕

Since the wheel cap of the present invention has the above-described structure, the center cap can be easily attached and detached without using small parts or tools.

In addition, the center cap can be installed and removed with just a slight rotation, making it easy to work with.Moreover, since it is firmly fixed using a mechanical mechanism, there is no play or loosening, and there is no risk of the center cap falling off while driving. Not at all.

Furthermore, since the structure is extremely simple, stable quality can be maintained and productivity can be greatly improved, which is an excellent effect.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing an embodiment of the wheel cap of the present invention, FIG. 2(A) is a perspective view showing an embodiment of the center cap used for the wheel camp of the present invention, and FIG. (c) is a cross-sectional view taken along line ■-I in O), (b) is a cross-sectional view of the main part taken along line G] in (b), and Fig. 3 (a) is an embodiment of the base cap used in the wheel cap of the present invention. FIG. 4 shows the mounting structure of the wheel cap of the present invention, (A) is an explanatory view showing the inserted state, (B) is an explanatory view showing the fitted state, $ Fig. 5 is an explanatory view of the main parts showing another embodiment of the base cap, and Fig. 6
7(a) and 7(b) are explanatory views of essential parts of a base cap showing other embodiments of the present invention, respectively. Figure 8 (
(a) and (b) are respectively cut-away end views of essential parts of a conventional wheel cap. (1) @... Center gear (3)... Fitting part (5)... Claw part (7)... Tsuba (9) (to)... Base character αI @... Penetration Hole (2)...Guide arm α Ship...Wall surface α force...Retaining part (4)...Recess @...O ring (4)...Bolt tr...Wheel Character lug (2)...Locking tool (4)...Leg piece (6) α time (2)...Protrusion (8)...Locking part α force...Guide penetration Hole α...Mounting part α...Guide groove α...Crimp part @...Shelf...Notch function...Threaded part]IZ1 Fig. 4 (C) ) Figure (a) (b) (d) Figure 3 (b) (a) 5th circle No. 6121 Figure (b)

Claims (1)

[Claims] A wheel cap consisting of a base cap that is removably attached to a disc of a wheel, and a center cap that is removably attached to the base cap, the center cap having a center cap main body having a fitting part at its lower end, A cross section including a flange provided on the upper part of the fitting part of the center cap main body, and a claw part provided at the lower end of the fitting part, having a locking part on the inner surface, and protruding radially outward from the tip. The base cap consists of a base cap main body and a plurality of attachment parts provided on the lower surface of the outer periphery of the base cap, and the base cap main body is configured to lock the center cap. a through-hole for inserting the tool, a guide through-hole communicating with the through-hole, and an engaging portion at the tip of the guide through-hole that engages with the locking tool of the center cap; A wheel cap characterized by comprising a guide arm projecting in the circumferential direction.