JP2510030Y2 - 3 piece type automobile wheel - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to improvement of a three-piece automobile wheel.

[0002]

2. Description of the Related Art As a three-piece type automobile wheel,
A structure in which the entire surface of the wheel disk is covered with a front rim is conventionally known as shown in FIG. 1 of Japanese Utility Model Publication No. 56-63602 and FIGS. 5 and 6 of Japanese Utility Model Publication No. 5-37841.

[0003]

However, in the former case, the pair of the outside rim (11) and the inside rim (12) has a bolt nut (1) at its well portion.
6) When the hook is fastened by the hub hole (14)
Spacer (disk) near the center of the opening
It is not pre-assembled and integrated with (13).

That is, from the hub of the axle to the hub bolt hole (1
By fastening the hub nut from the front to the hub bolt that is planted through 5), both rims (11) and (12) and the spacer (disk) (13) are fixed and integrated only when they are attached. This is a different structure.

Even if the temporary hub nut is fastened to the axle-side hub bolt, the center portion of the outside rim (11) is the spacer (disk) (13).
However, it is impossible for the hub nut to press and fix the hub nut.

Therefore, as a wheel before being mounted on an axle, there is a possibility that the center portion of the rims (11) (12) may fly apart from the spacer (disk) (13), and may fly to the axle. If the hub nut is loosened even during installation and use, a dangerous situation will be immediately caused.

Further, even if the hub nut is not loosened, the center portion of the outside rim (11) is left unfixed with the spacer (disk) (13) as described above, which is very uneasy. I have to say that it is inferior in attachment strength.

In this respect, in the former structure shown in FIG. 3, since the disk (3) is located on the front side of the outside rim (1) and this is pressed down by the bush (9), the outside rim is Although the central portion of (1) is maintained in a fixed state, there is no problem that the inside rim (2) may be flapping as a single wheel before it is attached to the axle.

[0009] Such a problem is caused by the latter case, fairness 5-37.
No. 841 occurs in exactly the same way. Even in the latter structure, unless the wheel is attached to the hub of the axle, the spacer (73) and the disk component (7) that sandwiches the spacer (73).
1) The central part of (72) is not fixed and integrated at all, let alone the front disk component (71) cannot be pressed and fixed to the spacer (73) by the hub nut.

[0010]

DISCLOSURE OF THE INVENTION The present invention intends to improve such a problem, and for that reason, the front rim receiving concave step surface reaching the vicinity of the hub bolt receiving hole and the concave step surface thereof are formed on the front surface. Of the rear rim receiving concave step surface further recessed from the peripheral edge of the wheel disc, a front rim in which a small-diameter fitting hole corresponding to the front rim receiving concave step surface is formed, and the rear rim receiving step The front rim has a concave step surface and a rear rim in which a corresponding large-diameter fitting hole is formed, and the concave step surface for receiving the front rim of the wheel disc is filled with a sealing agent for preventing metal touch with the front rim. The front rim is fitted to the receiving concave step surface from the front in a joined state, while the front rim is also fitted to the rear rim receiving concave step surface of the disk. The rims are fitted in a joined state, and both rims and the peripheral edge of the disk are fastened and integrated by a plurality of assembly bolts and nuts. And a center cover that covers the plurality of fixing bolts is detachably attached to the disk from the front with screws.

[0011]

According to the above construction of the present invention, the front surface of the wheel disc is notched with the front rim receiving concave step surface reaching to the vicinity of the hub bolt receiving hole.
A small-diameter fitting hole corresponding to the receiving concave step surface is formed on the front rim, and the front rim is fitted to the receiving concave step surface on the disc side in a joined state, and this is fitted to the peripheral edge of the disk. Not only the assembly bolts and nuts located in the above-mentioned parts, but also other bolts located in the periphery of the opening of the fitting hole, the P. C. Since it is fixedly integrated on D, there is no risk of fluttering, such as the front rim opening apart from the front of the disc as a single wheel, let alone causing danger during installation and use on an axle. .

Further, since the joining surface between the front surface of the disk and the front rim is filled with the sealant, there is no fear of causing a noise phenomenon due to the metal touch of both of them, and the surface of the disk is protected by the front rim. It is possible to obtain a high-strength three-piece automobile wheel that is entirely covered.

Furthermore, the plurality of bolts for fixing the peripheral portion of the opening of the fitting hole in the front rim to the disk are completely covered by the center cover screwed to the disk from the front. Therefore, there is no fear that the appearance and makeup effect of the wheel will be uncomfortable, and an elegant makeup effect of metallic tone can be obtained as a whole.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The specific construction of the present invention will be described in detail below with reference to the illustrated embodiments. In FIGS. 1 to 3 showing the three-piece type automobile wheel, (F) and (R) are tires. A pair of supporting front rim and rear rim, each of which has a mounting flange (11) (12) protruding inward as shown in FIG. It is plastically processed by the means.

(13) is a fitting hole having a large diameter (s2) punched in the central portion of the mounting flange (12) in the rear rim (R), and is relatively short and dimensionally mounted. A plurality of bolt receiving holes (15) for receiving bolts (14) for assembling with the wheel disc (D) are distributed in the flange (12).

On the other hand, (16) is the front rim (F).
Is a fitting hole with a small diameter (s1) punched in the center of the mounting flange (11) in the above, and the inwardly projecting base end portion of the mounting flange (11) sized relatively long with this is a fitting hole. , A plurality of bolt receiving holes (17) which correspond to the bolt receiving holes (15) on the rear rim (R) side and receive the above-mentioned assembly bolts (14) are also provided with inwardly projecting tips (of the mounting flange (11)). Since a plurality of bolt receiving holes (19) for receiving the fixing bolts (18) of the front rim (F) with respect to the disc (D) are distributed in the opening around the fitting hole (16). is there.

The wheel disk (D) mentioned above is
By casting or forging from a light alloy, it is made into a disk shape with a cross-sectional shape as shown in FIG. 2, and a thick boss (20) forming the center thereof has a shaft hole (21) with a relatively large diameter. Is opened, and the peripheral portion of the shaft hole (21) is slightly projected forward. It goes without saying that the rear surface of the boss (20) forms a disk mounting surface (22) for the axle hub (H).

(23) is located in the peripheral portion of the shaft hole (21) in the thick boss (20) and has a constant P. C.
D (Pitch Circle Diameter)
(P1) is a plurality of hub bolt receiving holes distributed in a radial symmetrical pattern on the (P1). Although not shown in the drawing, hub bolts to be planted from the axle hub (H) are inserted through the hub bolt receiving holes. The hub nut is fastened to the hub bolt from the front.

Similarly, (24) is located in the peripheral portion of the shaft hole (21) in the boss (20), and the P. of the hub bolt receiving hole (23) is formed. C. P.D. slightly larger than D (P1). C. Under D (P2), there are a plurality of screw receiving screw holes that are also opened as an overall radial symmetrical distribution type, and are dish screws (2
Accept 5).

Further, (26) is a screw hole for receiving the screw (24) P. C. As a diameter (d1) slightly larger than D (P2), it is a front rim receiving concave step surface cut out on the front surface of the disk (D), and its diameter (d
1) is a fitting hole (16) in the front rim (F)
The mounting flange (11) of the front rim (F) is adapted to be fitted from the front to the small diameter (s1).

In the fitted state, as shown in FIG. 2, the front surface of the disk (D) and the mounting flange (11) of the front rim (F) are wholly joined. However, a concave circumferential groove (27) for filling the sealing agent is cut out on the front surface of the disk (D) which is depressed by the depth of the notch of the front rim receiving concave step surface (26), and is filled here. When the sealant (28) such as silicon that has been applied is fitted to the mounting flange (11) of the front rim (F), it spreads and penetrates over the entire joint surface with the disk (D), and both It prevents the noise phenomenon caused by metal touch.

(29) is located on the peripheral portion of the disk (D), and has a front rim receiving concave step surface (26).
As a state further depressed from the rear rim receiving concave step surface which is continuously cut out, its diameter (d2) corresponds to the large diameter (s2) of the fitting hole (13) in the rear rim (R), The mounting flange (12) of the rear rim (R) is fitted here.

Reference numeral (30) denotes a peripheral portion of the disk (D) that remains relatively to the notch of the rear rim receiving concave step surface (29), and the bolt receiving holes (15) of both rims (F) (R) are provided. (17) Bolt receiving holes distributed as a plurality of holes corresponding to (17), and the assembly bolt (14) is penetrated through the whole, and the assembly bolt (1
By fastening the fixed nut (31) to 4), the disc (D) and both rims (F) (R) are assembled and integrated.

The reference numeral (32) is formed in the front surface of the disk (D) so as to correspond to the bolt receiving holes (19) distributed around the opening of the fitting hole (16) in the front rim (F). A plurality of screw holes for receiving the fixing bolts, which are the screw holes for receiving the countersunk screws (24). C. D
P.2 larger than (P2). C. The inwardly projecting tips of the mounting flanges (11) on the front rim (F) are distributed on the disk (D3) by the fixing bolts (18) screwed from the front on the D (P3). It will be fixedly integrated with D).

In other words, the rear rim (R) is fixed to the peripheral portion of the disk (D) through the plurality of assembly bolts (14) and nuts (31), but is not fixed.
The front rim (F) is assembled and integrated near the center of the disk (D) by the fixing bolt (18) in addition to the assembly bolt (14) and nut (31), This covers the entire front surface of the disk (D).

In this case, when the fixing bolt (18) is screwed into the screw hole (32) of the disk (D) from the bolt receiving hole (19) of the front rim (F), an adhesive is also applied. By doing so, it is preferable to improve the fixing strength.

Further, (C) is a center cover for covering the fixing bolt (18) from the front side, and a base plate (33) made of a hard synthetic resin and a double-sided adhesive tape (not shown) on the front surface thereof. And a light alloy decorative plate (34) which is attached and integrated, and is bent into a substantially U-shaped cross section as shown in FIG.

Then, it is detachably attached and fixed to the disk (D) by means of a countersunk screw (25) which is screwed into the screw hole (24) of the disk (D) from the front side. The front surface of the center cover (C) is a light alloy decorative plate (34) which gives a cosmetic effect rich in metallic luster that is compatible with the front rim (F).

Further, the center cover (C) has a substantially U-shaped cross-section, so that the fixing bolt (18) is attached to the boss (20) of the disk (D) from the front with its center portion in close contact. ) Can be surely covered.

[0030]

As described above, according to the structure of the vehicle wheel of the present invention, the hub bolt receiving hole (2
The wheel disc (D) in which the front rim receiving concave step surface (26) reaching near 3) and the rear rim receiving concave step surface (29) further recessed from the peripheral edge of the concave step surface (26) are cut out. ), A front rim (F) in which a fitting hole (16) having a small diameter corresponding to the front rim receiving concave step surface (26) is formed, and a diameter corresponding to the rear rim receiving concave step surface (29). Large mating hole (13)
And a rear rim (R) having an opening formed therein, and the front rim receiving concave step surface (2) of the wheel disc (D).
6) is filled with a sealant (28) for preventing metal touch with the front rim (F), and then the front rim (F) is fitted to the front rim receiving concave step surface (26) in a joined state from the front, From the front to the rear rim receiving concave step surface (29) of the disk (D), the rear rim (R)
Are assembled in a joined state, and both rims (F) (R) and the peripheral portion of the disk (D) are fastened and integrated by a plurality of assembly bolts (14) and nuts (31), and the front rim (F) is joined. The peripheral portion of the opening of the fitting hole (16) is fixed to the disk (D) by another plurality of bolts (18), and the center cover (C) that covers the plurality of fixing bolts (18) is described above. Since it is detachably attached to the disk (D) from the front by the screw (25), it has an effect of alleviating various problems of the prior art described at the beginning.

That is, according to the above construction of the present invention, the front surface of the wheel disc (D) is notched with the front rim receiving concave step surface (26) reaching up to the vicinity of the hub bolt receiving hole (23). On the other hand, the front rim (F) is formed with a fitting hole (16) having a small diameter corresponding to the receiving concave step surface (26), and the front rim (F) is received on the disk (D) side. Concave step (2
6) Fit it onto the disk in a joined state, and then attach it to the disk (D).
Assembling bolts (14) and nuts (3) located on the periphery of the
1) as well as another bolt (18) located around the opening of the fitting hole (16), the P. C.
Since it is fixedly integrated on D, there is no risk of fluttering such as the front rim (F) opening apart from the front of the disc (D) as a single wheel, let alone a dangerous situation during installation and use on the axle. There is no danger of inviting you.

Further, since the joining surface between the front surface of the disk (D) and the front rim (F) is filled with the sealing agent (28) such as silicon, the noise phenomenon caused by the metal touch of both of them is prevented. It is possible to obtain a high-strength three-piece type automobile wheel in which the surface of the disk (D) is entirely covered by the front rim (F) without any fear of occurrence.

Further, a plurality of bolts (18) for fixing the opening peripheral portion of the fitting hole (16) in the front rim (F) to the disk (D) are screwed to the disk (D) from the front. Since it is completely covered by the center cover (C), there is no fear that the appearance and makeup effect of the wheel will be uncomfortable.

Particularly, if the configuration of claim 2 is adopted,
Front rim (F) covering the front of the disk (D)
And a light alloy decorative plate (3) in the center cover (C)
In combination with 4), it is possible to exhibit a new appearance cosmetic effect of metallic luster that is totally integrated, and this is due to the curved shape of the center cover (C).
It can be said that the fact that 8) can be coated smoothly also works effectively.

[Brief description of drawings]

FIG. 1 is a front view of an automobile wheel according to the present invention.

FIG. 2 is an enlarged sectional view taken along line 2-2 of FIG.

FIG. 3 is a front view with a center cover removed.

[Explanation of symbols]

 (13) · Mating hole (14) · Assembly bolt (16) · Mating hole (18) · Fixing bolt (23) · Hub bolt receiving hole (25) · Countersunk screw (26) · Front rim receiving concave step surface ( 28) -Sealant (29) -Rear rim receiving concave step surface (31) -Fixing nut (33) -Base plate (34) -Decorative plate (C) -Center cover (D) -Wheel disk (F) -Front rim (R) / Rear rim

Claims (2)

(57) [Scope of utility model registration request] 1. A front rim receiving concave step surface (26) reaching the vicinity of a hub bolt receiving hole (23) on the front surface.
And a wheel disc (D) in which a rear rim receiving concave step surface (29) further recessed from the peripheral edge of the concave step surface (26) is cut out, and corresponds to the front rim receiving concave step surface (26). A front rim (F) having a small-diameter fitting hole (16) formed therein and a rear rim (R) having a large-diameter fitting hole (13) corresponding to the rear rim receiving concave step surface (29) formed therein. ), The front rim receiving concave step surface (26) of the wheel disc (D) is filled with a sealant (28) for preventing metal touch with the front rim (F), and the front rim receiving concave step surface (26) is provided. 26) From the front to the front rim (F)
The rear rim receiving concave step surface (2) of the disk (D) as well.
9) The rear rim (R) is fitted in a joined state from the front, and both rims (F) (R) and the peripheral edge of the disk (D) are fastened with a plurality of assembly bolts (14) and nuts (31). A plurality of bolts (18) that are integrated with each other and the peripheral portion of the opening of the fitting hole (16) in the front rim (F) is attached to the disk (D).
The center cover (C) that covers the plurality of fixing bolts (18) with screws (2) from the front to the disk (D).
According to 5), a three-piece type automobile wheel is detachably attached. 2. A center cover (C) is molded into a substantially U-shaped cross section from a synthetic resin base plate (33) and a light alloy decorative plate (34) adhered and integrated to the front surface of the base plate (33). The three-piece type automobile wheel according to claim 1, wherein the plate (34) has a metallic luster that is integrated with the front rim (F).