JPH0524405A - Wheel and wheel assembly for automobile - Google Patents

Abstract

PURPOSE:To prevent a surface where sealant is applied from being exposed in an automotive wheel which is constituted by sealed jointed parts between flanges and with the flange. CONSTITUTION:An outer rim 11 is provided on the outside of the periphery of a disc 1, and an inner rim 12 is provided on its inside. Flanges 10, 10 of the outer rim 11 and the inner rim 12 are screwed into a rim mounting part 13 on the periphery of the disc 1, a circular groove 2 is provided in the roughly center of a circular jointed surface of both the flanges 10, 10 of the outer rim 11 and the inner rim 12 or a circular jointed surface between the flange 10 and the rim mounting part 13, and the circular groove 2 is filled with sealant A.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wheel for a tubeless tire of an automobile or the like, and more particularly to a so-called three-piece type wheel and a three-piece type wheel in which the rim consists of an outer rim on the outer side and an inner rim on the inner side of the disc. It relates to an assembly.

[0002]

2. Description of the Related Art A three-piece type wheel (hereinafter referred to as a wheel) for a tubeless tire generally has an outer rim 11 on the outer peripheral outer surface of a disc 1 attached to a hub 7, as shown in FIG. The inner rim 12 is provided on the inner side, and the ring-shaped flanges 10 and 10 formed on the inner circumference of each rim 11 and 12 and the respective joint surfaces of the rim mounting portion 13 formed on the outer circumference of the disc 1 are brought into close contact with each other. , Screwed on.

A wheel is not completed with a so-called wheel assembly that is simply assembled as described above, and the joint surface between the flange portions 10 and 10 of the outer rim 11 and the inner rim 12 and the rim mounting portion 13 of the disc 1 is joined. In order to ensure the airtightness of the wheel, the sealant A is applied to the outer peripheral portion of the joint surface to complete the wheel. However, in this wheel, since the sealing agent application surface is exposed, air leakage occurs due to wear of the tire bead B when the tire is mounted and peeling of the sealing agent A due to damage by a tool when the tire is removed. There was a problem.

This problem is caused by the fact that the sealant A is applied from the outer peripheral surface of the joint portion between the flange portions 10 and 10 of the outer rim 11 and the inner rim 12 and the rim mounting portion 13 of the disc 1, so that the outer peripheral surface is In the above, it occurs when the surface of the sealant application part is exposed. Further, since the sealant A cannot be applied uniformly, the sealant A protruding from the flange portions 10 and 10 of the rims or the joints between the rims 11 and 12 and the disc 1 remains exposed. In most cases the appearance is unsightly.

The present invention has been made in view of the above points. "The outer rim 11 is provided outside the peripheral edge of the disc 1 and the inner rim 12 is provided inside, and the flange portions of the outer rim 11 and the inner rim 12 are provided. In the wheel for automobiles, in which 10 and 10 are screwed to the rim mounting portion 13 on the peripheral edge of the disc 1 and the flange portions 10 and 10 or the joint portion between the flange portion 10 and the rim mounting portion 13 are sealed, The problem is to prevent the coated surface of A from being exposed. [Invention of Claim 1]

[0006]

[Technical Means] A technical means of the present invention for solving the above-mentioned problem is to provide an annular groove 2 in the middle of an annular joint surface between the flange portions 10 and 10 or between the flange portion 10 and the disk 1.
And the annular groove 2 is filled with the sealant A ”.

[0007]

The above technical means operates as follows. Outer rim
An annular groove 2 is formed in the joint surface between the flange portions 10 and 10 of the inner rim 12 and the inner rim 12 or in the middle of the annular joint surface between the flange portion 10 and the disc 1, and this portion is filled with the sealant A. Has been done.

Therefore, the airtightness of the joint portion of the rim when the tire is mounted is ensured by the sealant A with which the annular groove 2 is filled. Since the annular groove 2 is located in the middle of the joint surface, it is not exposed to the outside, particularly the rim surface on the tire mounting portion side. Furthermore, it is not exposed on the disc 1 side that follows the inner circumference of the rim.

[0009]

[Effects] The present invention having the above-described structure has the following unique effects. Flanges 10, 10 Mutually or this flange 10,
Sealant A present at the joint between 10 and the peripheral edge of disk 1
Since it is not exposed on the tire mounting surface of the rim, there is no concern that the sealant A will be damaged and air will leak when the tire is mounted or removed.

Further, it is possible to prevent unsightly appearance. [Invention of Claim 2] The invention of this claim is
The present invention relates to a wheel assembly constituting the invention of 1, that is, a wheel assembly not filled with the sealant A, and an object thereof is to facilitate the filling of the sealant A when the wheel is a finished product. To do.

[0011]

[Technical Means] The technical means of the present invention for solving the above-mentioned problems is to describe the "flange portions 10 and 10 of the outer rim 11 and the inner rim 12".
An annular groove 2 which is a filled portion of the sealant A is provided at the center of the annular joint surface between the flange portion 10 and the disk 1, and an injection hole 3 communicating with the annular groove 2 from the outside of the wheel assembly is provided. Has been established ”.

[0012]

The above technical means operates as follows. Outer rim
In the above wheel assembly in which the flange portions 10 and 10 of the inner rim 12 and the inner rim 12 are screwed to the peripheral edge of the disc 1, the joint surfaces of the flange portions 10 and 10 or the joint portion of the flange portion 10 and the rim mounting portion 13 are joined. In the middle of the surface, the annular groove 2 goes around the entire circumference. The annular groove 2 communicates with the outside through the injection hole 3.

When the sealing agent A is injected under pressure from the injection hole 3, the injected sealing agent A first gradually fills the annular groove 2 from the vicinity of the injection hole 3, and finally from the injection hole 3 most. The merging is performed at a distant position, and the entire area of the annular groove 2 is filled with the sealant A. Thus, the sealing agent A is filled in the entire area of the annular groove 2 only by pressurizing and filling the predetermined amount of the sealing agent A from the injection hole 3, and the airtightness of the joint portion on the inner peripheral side of the rim is secured.

[0014]

[Effects] The present invention having the above-described structure has the following unique effects. As in the first aspect of the invention, in the wheel using this wheel assembly, the sealant is not exposed on the rim surface, so leakage due to damage to the sealant A can be prevented and the appearance is not unsightly.

By the injection under pressure, the sealing agent A is transferred to the annular groove 2
Since it is evenly distributed over the entire circumference, the sealing effect becomes more reliable. Further, the filling of the sealant A for completing the wheel becomes easy. [Invention of Claim 3] The present invention solves the same problem as that of the invention of Claim 1 without performing any particular processing for forming the filled portion of the sealant A.

[0016]

[Technical Means] A technical means of the present invention for solving the above-mentioned problem is to provide an annular lid 6 on the outer periphery of the outer rim 11 and the inner rim 12 or the annular joint between these and the disc 1. The sealing agent A is filled in the annular sealing gap 60 formed by contacting both ends of the cross section of the annular lid 6 with the rim surface near the outer peripheral edge of the joint surface.

[0017]

The above technical means operates as follows. Outer rim
An annular lid 6 is provided at the outer peripheral edge of the annular joint surface between the disc 11 and the inner rim 12 or between the inner rim 12 and the inner rim 12 so as to have an annular sealing gap 60 between the outer peripheral edge of the joint surface and the outer peripheral edge. . Further, both ends of the cross section of the annular lid 6 are brought into contact with the rim surface in the vicinity of the outer peripheral edge of the joint surface to fill the sealing gap 60 with the sealant A. Therefore, the outer peripheral edge of each joint surface is sealed with the sealant A, and the entire sealant is covered with the annular lid 6.
Also in this case, the sealing agent A is not exposed on the rim surface, as in the inventions of the above claims.

[0018]

As in the case of the first aspect of the invention, since the sealing agent A is not exposed on the surface, the sealing agent A is not damaged or the appearance is unsightly. Since it is not necessary to provide the annular groove 2 on the outer rim 11, the inner rim 12, or the disc 1, the parts can be easily processed.

[0019]

Embodiments of the present invention described above will now be described in detail with reference to the drawings. [Embodiment 1] Embodiment 1 shown in FIGS. 1 and 2 is an outer rim 1
1. The inner rim 12 is joined to each other at the flange portions 10 and 10, and the joined portion is screwed to the rim mounting portion 13 of the disc 1.

Flange portions 10, 1 of the outer rim 11 and the inner rim 12
0 The annular grooves 2a, 2b are arranged on the mutual joint surfaces, and these annular grooves 2a, 2b are set in advance at the predetermined positions of the flange portions 10, 10 to join the outer rim 11 and the inner rim 12 together. When they are integrated into a single rim, they form an annular groove 2 facing each other. Then, the outer rim 11 and the inner rim 12 are joined to each other at their flange portions 10 and 10, and these are screwed to the rim mounting portion 13 of the disc 1 to form a wheel assembly.

In this wheel assembly, the injection hole
3 is provided on the periphery of the joint surface between the flange portions 10 and 10. Further, the rim consisting of the outer rim 11 and the inner rim 12 is a disc with a predetermined pitch in the inner peripheral region of the formation portion of the annular groove 2.
The rim mounting portion 13 of 1 is screwed with a plurality of bolts and nuts. Then, the sealing agent A is filled from the injection hole 3 to fill the annular groove 2 with the sealing agent A, thereby completing the wheel.

In this wheel, the annular groove 2 is located in the middle of the annular joint surface of the flange portions 10 and 10 and does not face the surface, so that the sealing agent A is not exposed on the surface and is airtight. Can be secured. In this embodiment, the annular groove 2 is the annular grooves 2a and 2b provided on both joint surfaces of the flange portions 10 and 10. However, air leakage between the joint surfaces can be blocked and the sealant A coated portion is exposed. If it is possible to prevent this, the annular groove 2 may be provided only on the joint surface of one flange portion 10.

[Embodiment 2] In Embodiment 2 shown in FIG. 3, annular grooves 2 and 2 are provided on both sides of a rim mounting portion 13 of a disk 1, and flange portions of an outer rim 11 and an inner rim 12 are provided. 1
The rim mounting portion 13 of the disc 1 is sandwiched by 0 and 10 and the inner peripheral regions of the annular grooves 2 and 2 are screwed with bolts and nuts.

In this case, an injection hole 3 is provided in the outer peripheral surface 1a of the disk 1, and the injection holes 3 are penetrated between the both side surfaces of the rim mounting portion 13 by a communication hole 22 to form the annular grooves 2, 2
It is configured to communicate with. The position and the number of the communication holes 22 are determined according to the strength of the disk 1 and the fluidity (viscosity) of the sealant A.

In the wheel assembly having the above structure, the injection hole 3
When the sealant A is injected from the
The wheels 2 and 2 are filled with the sealant A in the same procedure as in Example 1 to complete the wheel. In the case of this embodiment as well, similar to the first embodiment, the annular grooves 2a and 2b may be provided on both of the pair of joint surfaces to form the annular groove 2.

In the first and second embodiments, the annular groove 2 is filled with the sealant A through the injection hole 3. However, the sealant A is filled in the annular groove 2 before the wheel assembly is assembled. The wheels may be completed by assembling the respective parts after coating and filling. In the wheel having this structure, the injection hole 3 may not be provided.

[Third Embodiment] In the first and second embodiments,
A screwing portion for screwing the outer rim 11 and the inner rim 12 to the disc 1 was provided at a position deviated from the annular groove 2, but as shown in FIG. Is also good. In this case, the annular groove 2 is, as shown in FIG.
Arc-shaped groove 2c, 2c connecting between bolt holes P for screwing
And the outer peripheral gap G between the bolt R penetrating the bolt hole P,
It will be composed of G. Further, in this embodiment, an injection hole 3 communicating with the arcuate groove portion 2c is formed in the flange portion 10 at an intermediate position between the bolt holes P, P.

The bolt R penetrating the bolt hole P
The degree of the outer peripheral gap G between and does not need to be specially considered, and may be a normal gap corresponding to the fitting margin between the bolt R and the bolt hole P. In this embodiment, when the sealant A is injected under pressure from the injection hole 3, the sealant is filled from the arcuate groove portion 2c into the outer peripheral gap G of the bolt R which follows the arcuate groove portion 2c, and then reaches the next arcuate groove portion 2c. The sealant is filled. At this time, both ends of the outer peripheral gap G are at the head T of the bolt R.
Alternatively, since it is blocked by the nut N, a washer, etc., there is no fear of leaking to the outside.

The injection hole 3 for the sealant A was formed in the first embodiment.
Similarly to the above, the flange portions 10 and 10 may be provided on the outer peripheral edge of the joint surface. [Embodiment 4] Next, Embodiment 4 shown in FIG. 6 is an embodiment of the invention of Claim 3 in which the peripheral edge of the annular joint surface between the outer rim 11 and the inner rim 12 is covered with an annular lid 6. Thus, an annular closed gap 60 is formed, and an injection hole 3 penetrating the annular lid 6 in the radial direction is provided.

In this case, the annular lid 6 has a flat U-shaped cross section.
The outer surface of the outer rim 11 and the inner rim 12 has a circular cross section, and the outer peripheral surface of the outer rim 11 and the inner rim 12 has an annular shallow step 14 within a certain range from the peripheral edge of the flange 10.
Has become. An annular recess is formed by the pair of step portions 14 and 14, and the annular lid 6 is housed in the recess. As shown in FIG.
61, 61 are in contact with the bottom of the recess.

When the sealing agent A is injected and filled into the wheel assembly of this construction through the injection hole 3, the sealing agent A is evenly filled over the entire circumference in the closed gap 60 to seal the joint surface. Also in this case, the sealant A is not exposed on the surface because it is covered with the annular lid 6 over the entire area.

By the way, if the annular lid 6 in this embodiment is interposed between the outer rim 11 and the inner rim 12 before they are joined to each other, a pair of step portions 14, 14 which are close to each other in the assembled state are provided.
Will be installed inside. In this embodiment, the joint surfaces of the flange portions 10 and 10 are brought into close contact with each other and screwed to the rim mounting portion 13 of the disc 1.
The flange portions 10 and 10 of the inner rim 12 and the inner rim 12 may be screwed with the rim mounting portion 13 of the disc 1 interposed therebetween, and the injection hole 3 may be provided on the disc 1 side or the flange portion 10 side. .

Further, although a minute gap is formed on the joint surface following the annular groove 2, if the viscosity of the sealant A is set to a predetermined value,
When the sealant A is injected through the injection hole 3, there is no risk of the sealant A leaking through the minute gaps following the annular groove 2. Further, in any of the above-mentioned embodiments, as shown in FIG. 2, when the escape hole 30 communicating with the annular groove 2 is formed at the position farthest from the injection hole 3, the escape hole 30 When the sealing agent A overflows, the filling of the entire area of the annular groove 2 is completed, and it is easy to judge the completion of the filling. Further, it is possible to prevent the sealing agent A from leaking to other than the annular groove 2.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of the first embodiment.

FIG. 2 is a sectional view taken along line XX.

FIG. 3 is a cross sectional view of the second embodiment.

FIG. 4 is a cross sectional view of the third embodiment.

FIG. 5 is a sectional view taken along line YY.

FIG. 6 is a cross sectional view of the fourth embodiment.

FIG. 7 is an explanatory diagram of a conventional example.

[Explanation of symbols]

11 ... outer rim 10 ... Flange part 12 ... Inner rim 2 ... annular groove A ... Sealing agent 3 ... Injection hole 6 ... annular lid 1 ... disc 13 ... Rim mounting plate

Claims (3)

[Claims] 1. An outer rim 11 is provided on the outer periphery of the disk 1.
The inner rim 12 is provided on the inner side, and the flange portions 10 and 10 of the outer rim 11 and the inner rim 12 are attached to the rim mounting portion 13 on the peripheral edge of the disc 1.
Screwed to the flanges 10, 10 to each other or to the flange 10
In a vehicle wheel that seals the joint between the rim mounting portion 13 and the rim mounting portion 13, an annular groove 2 is formed in the middle of the annular joint surface between the flange portions 10 and 10 or between the flange portion 10 and the rim mounting portion 13. The sealant A is provided in the annular groove 2
Automotive wheels filled with. 2. An outer rim 11 is provided outside the peripheral edge of the disc 1.
The inner rim 12 is provided on the inner side, and the flange portions 10 and 10 of the outer rim 11 and the inner rim 12 are attached to the rim mounting portion 13 on the peripheral edge of the disc 1.
In the wheel assembly screwed to the above, the sealing agent A is filled in the flange portions 10, 10 of the outer rim 11 and the inner rim 12 with each other or in the middle of the annular joint surface between the flange portion 10 and the rim mounting portion 13. A wheel assembly having an annular groove (2) as a part and an injection hole (3) communicating with the annular groove (2) from the outside of the wheel assembly. 3. An outer rim 11 is provided outside the peripheral edge of the disk 1,
The inner rim 12 is provided on the inner side, and the flange portions 10 and 10 of the outer rim 11 and the inner rim 12 are attached to the rim mounting portion 13 on the peripheral edge of the disc 1.
Screwed to the flanges 10, 10 to each other or to the flange 10
In an automobile wheel having a joint between a rim mounting portion and a rim mounting portion 13 sealed, an annular lid is provided on the outer rim 11 and the inner rim 12 or at the outer peripheral edge of the joint portion between these and the rim mounting portion 13.
An automobile wheel in which a sealing agent A is filled in an annular closed gap 60 formed by providing both ends of the annular lid 6 in cross section with the rim surface near the joint surface portion.