阅读说明：本技术 轮胎轮毂组装体 (Tire hub assembly ) 是由 大泽悠佑 斋藤寿信 神山洋一 于 2019-07-03 设计创作，主要内容包括：本发明提供一种轮胎轮毂组装体,其能够容易地将亥姆霍兹共振器安装于市售轮毂。本发明的轮胎轮毂组装体(1)的特征在于,包括：盖体(20),其轮毂宽度方向(Y)的两缘夹在轮毂(1a)的一对胎圈座(13)和在所述胎圈座(13)上配置的轮胎胎圈(24)之间,且配置在凹下部(11c)的上方；以及副气室部件(10),其配置于所述盖体(20)。(The invention provides a tire hub assembly, which can easily install Helmholtz resonators on a commercial hub. A tire hub assembly (1) according to the present invention is characterized by comprising: a cover (20) which is disposed above the recessed portion (11c) with both edges in the hub width direction (Y) sandwiched between a pair of bead seats (13) of a hub (1a) and a tire bead (24) disposed on the bead seats (13); and a sub-air chamber member (10) disposed on the lid (20).)

1. A tire hub assembly, comprising:

a cover body disposed above the depressed portion, both edges in a hub width direction of the cover body being sandwiched between a pair of bead seats of the hub and tire beads disposed on the bead seats; and

and a sub-air chamber member disposed on the lid body.

2. A tire hub assembly characterized in that,

a cover body disposed above the recessed portion, both edges in the hub width direction of the cover body being sandwiched between a pair of bead seats of the hub and tire beads disposed on the bead seats,

an auxiliary air chamber is formed by the cover body and the outer peripheral surface of the concave part of the hub.

3. The tire hub assembly according to claim 1 or 2,

the portion of the cover body disposed above the recessed portion is disposed below the raised portion of the hub.

Technical Field

The present invention relates to a tire hub assembly.

Background

A vehicle hub having a helmholtz resonator on an outer peripheral surface of a recessed portion of a rim is known (see, for example, patent document 1). In the vehicle hub of patent document 1, a vertical wall is formed on the outer peripheral surface of the recessed portion so as to extend in the hub circumferential direction, and the helmholtz resonator is configured to be engaged in a groove portion formed in the vertical wall. According to such a vehicle hub, the helmholtz resonator can be easily attached to the rim.

Disclosure of Invention

However, in the conventional vehicle hub (see, for example, patent document 1), since the groove portion needs to be provided in the vertical wall of the hub, a commercially available hub cannot be used as it is, and there is a problem that the manufacturing cost of the hub increases. Therefore, a tire hub assembly that can easily mount a helmholtz resonator to a commercially available hub is desired.

The invention provides a tire hub assembly capable of easily mounting a Helmholtz resonator on a commercial hub.

A tire hub assembly according to the present invention for achieving the above object includes: a cover body disposed above the depressed portion, both edges in a hub width direction of the cover body being sandwiched between a pair of bead seats of the hub and tire beads disposed on the bead seats; and a sub-air chamber member disposed on the lid body.

The tire-hub assembly according to the present invention includes a cover disposed above the depressed portion, and both edges in the hub width direction are sandwiched between a pair of bead seats of the hub and a tire bead disposed on the bead seat, and the cover and the outer peripheral surface of the depressed portion of the hub form an auxiliary air chamber.

ADVANTAGEOUS EFFECTS OF INVENTION

According to the present invention, it is possible to provide a tire hub assembly in which a helmholtz resonator can be easily mounted on a commercially available hub.

Drawings

Fig. 1 is a perspective view of a tire hub assembly according to an embodiment of the present invention.

Fig. 2 is a sectional view II-II of fig. 1.

Fig. 3 is a perspective view of a tire hub assembly according to another embodiment of the present invention.

Fig. 4 is a sectional view IV-IV of fig. 3.

Description of the reference numerals

1 tire hub Assembly

1a wheel hub

1b tyre

9 tire air chamber

10 subsidiary air chamber parts

11 wheel rim

11c concave part

11d outer peripheral surface

12 dish part

13 bead seat

14 rim flange

15 longitudinal wall

16 raised part

18 pipe body

18a communication hole

20 cover body

21 tread

22 shoulder

23 side wall

24 tyre bead

24a bead wire

25a upper plate

25b bottom plate

25c side plate

25d longitudinal plate

101 tire hub assembly

118a communication hole

SC auxiliary air chamber

X wheel hub circumference

Y-wheel hub width direction

Z wheel hub radial

Detailed Description

Next, a tire hub assembly according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. In the drawings referred to herein, "X" represents a hub circumferential direction, "Y" represents a hub width direction, and "Z" represents a hub radial direction. Further, the outer side of the hub with respect to the center portion in the hub width direction Y may be referred to as "outer side in the hub width direction Y", and the end portion located on the outer side with respect to the center portion in the hub width direction Y may be referred to as "outer end portion in the hub width direction Y".

Fig. 1 is a perspective view of a tire hub assembly 1 according to an embodiment of the present invention. Fig. 2 is a sectional view II-II of fig. 1.

As shown in fig. 1, the tire hub assembly 1 of the present embodiment is configured to mainly include a hub 1a and a tire 1 b.

The hub 1a in the present embodiment assumes a structure made of light metal such as aluminum alloy or magnesium alloy.

The hub 1a includes: a rim 11 to which the tire 1b is assembled; and a disk portion 12 for connecting the rim 11 to a not-shown collar.

The rim 11 has a recessed portion 11c recessed inward in the hub radial direction (toward the rotation center) between bead seats 13 formed at both ends in the hub width direction Y. The outer peripheral surface 11d of the depressed portion 11c defined by the depressed bottom surface has substantially the same diameter in the hub width direction Y around the hub axle.

As shown in fig. 2, the rim 11 has a pair of vertical walls 15 that rise from both ends in the hub width direction Y of the outer peripheral surface 11d of the depressed portion 11c toward the rim flange 14 side. Further, the rim 11 has bead seats 13 formed on the outer sides of the vertical walls 15 in the hub width direction Y via raised portions 16. The outer end of the bead seat 13 in the hub width direction Y is raised toward the rim flange 14.

As shown in fig. 1, the tire 1b extends in a ring shape around a rim 11 so that a tire air chamber 9 is formed inside.

As shown in fig. 2, the tire 1b includes: a tread 21 forming a ground contact surface; a sidewall 23 forming a side surface of the tire 1b via a shoulder 22; and a tire bead 24 disposed on the bead seat 13.

A bead wire 24a is disposed inside the tire bead 24. The bead wire 24a extends annularly in the circumferential direction of the rim 11. The bead wire 24a causes the tire bead 24 to be seated on the bead seat 13 by the tightening force.

As shown in fig. 1, the tire hub assembly 1 of the present embodiment further includes: a lid body 20 disposed on the outer peripheral surface 11d of the recessed portion 11 c; and a sub-air chamber member 10 (helmholtz resonator) provided in the cover 20.

The cover 20 is curved along the hub circumferential direction X.

The lid 20 is not particularly limited as long as it has a predetermined rigidity, and may be a virtual resin plate, a metal plate, or the like.

As shown in fig. 2, both edges of the cover 20 in the hub width direction Y are sandwiched between the bead seat 13 and the tire bead 24.

More specifically, the portion of the lid body 20 disposed on the depressed portion 11c is disposed below (inward in the hub radial direction) the top of the raised portion 16. The cover 20 in the present embodiment extends outward from the center portion in the hub width direction Y in parallel with the hub axis, and extends to follow the peripheral surface shapes of the bulge portion 16 and the bead seat 13 in the range from the bulge portion 16 to the bead seat 13.

Incidentally, the cover 20 in the present embodiment may also be provided with an adhesive interposed between the cover and the bead seat 13 and/or between the cover and the tire bead 24.

As shown in fig. 1, auxiliary air chamber member 10 (helmholtz resonator) is disposed on the upper surface (outer surface in the radial direction of the hub) of cover 20. The sub air chamber member 10 is formed of a box having a hollow portion. The sub air chamber member 10 in the present embodiment is assumed to be a resin molded product such as polypropylene or polyamide.

As shown in fig. 2, the sub air chamber member 10 includes a bottom plate 25b disposed on the lid body 20 side, an upper plate 25a disposed so as to face the bottom plate 25b, and a pair of side plates 25c connecting the bottom plate 25b and the upper plate 25 a. The hollow portion surrounded by the upper plate 25a, the bottom plate 25b, and the side plate 25c functions as a sub-air chamber SC.

As shown in fig. 1, the sub air chamber member 10 is connected to the cover 20 so as to be long in the hub circumferential direction X and curved along the cover 20. Examples of a method of connecting the sub-air chamber member 10 and the lid body 20 include bonding and welding.

The sub air chamber member 10 has a pipe 18 at an end in the hub circumferential direction X. A communication hole 18a is formed inside the pipe body 18. The communication hole 18a communicates the sub air chamber SC with the tire air chamber 9.

Although not shown in the drawings, the sub air chamber members 10 in the present embodiment are assumed to be arranged in four in the hub circumferential direction X. The tubes 18 forming the communication holes 18a in the sub air chambers SC are arranged at 90-degree intervals around the hub rotation axis. However, the number of the sub-air chambers SC and the position of the pipe 18 are not limited to these. Therefore, when the number of the sub air chambers SC is two, the tubes 18 can be arranged at 180 ° intervals around the hub rotation axis. When the number of the sub-air chambers SC is three or five or more, the tubes 18 can be arranged at equal intervals in the hub circumferential direction X.

The sub air chamber member 10 can be attached to the hub 1a by a normal tire assembling method in which the bead seats 13 of the hub 1a are disposed so as to sandwich the both ends of the cover 20 and the tire beads 24 of the tire 1b are provided.

< action Effect >

Next, the operational effects of the tire-hub assembly 1 according to the present embodiment will be described.

In the tire-hub assembly 1 of the present embodiment, both ends of the cover 20 are sandwiched between the tire bead 24 and the bead seat 13, and the sub-air chamber member 10 is supported on the tire-hub assembly 1 via the cover 20.

According to the tire-hub assembly 1, the sub air chamber member 10 can be mounted by disposing the tire bead 24 on the bead seat 13 of the hub 1 a. That is, unlike the conventional hub (see, for example, patent document 1), the tire hub assembly 1 does not require a vertical wall for mounting the sub air chamber member 10 to be formed on the hub 1 a. Therefore, according to the tire-hub assembly 1, the sub-air chamber member 10 can be easily attached to the commercially available hub 1 a.

In the tire-hub assembly 1 according to the present embodiment, the portion of the lid body 20 that is disposed above the depressed portion 11c is disposed below the top portion of the raised portion 16. Thus, the tire hub assembly 1 can dispose the sub air chamber member 10 further inside in the hub diameter direction Z in the tire air chamber 9. According to the tire hub assembly 1, when the tire bead 24 is assembled to the bead seat 13, interference of the tire bead 24 with the sub air chamber member 10 can be further reduced.

The embodiments of the present invention have been described above, but the present invention is not limited to the embodiments and can be implemented in various ways.

In the above embodiment, the sub air chamber member 10 is attached to the upper surface of the cover 20, but the tire hub assembly 1 may be configured such that the sub air chamber member 10 is attached to the lower surface of the cover 20.

In the present invention, the sub-air chamber member 10 may be omitted by forming the sub-air chamber between the lid body 20 and the outer peripheral surface 11d of the recessed portion 11 c.

Fig. 3 is a perspective view of a tire hub assembly 101 according to another embodiment (modification). Fig. 4 is a sectional view IV-IV of fig. 3. In fig. 3 and 4, the same components as those of the above-described embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

As shown in fig. 3, in the tire hub assembly 101 of the modification, the vertical plates 25d are provided at both ends of the cover 120 in the hub circumferential direction X, respectively, to close the gap between the cover 120 and the depressed portion 11 c. In fig. 3, for the sake of convenience of drawing, only one vertical plate 25d is shown as the vertical plate 25d, and illustration of the other vertical plate 25d is omitted.

Further, a communication hole 118a is formed in the cover 120 substantially at the center in the hub circumferential direction X and the hub width direction Y.

The lid 120 is formed in the same manner as the lid 20, except that the vertical plate 25d and the communication hole 118a are provided in the lid 20 (see fig. 2) of the above-described embodiment, except that the sub air chamber member 10 (see fig. 2) is omitted.

As shown in fig. 4, the cover 120 forms a sub-air chamber SC between the depressed portions 11 c. Further, the communication hole 118a communicates the sub air chamber SC with the tire air chamber 9.

In fig. 4, reference numeral 121 denotes a cylindrical collar member provided around the communication hole 118a, and the height of the collar member 121 is increased in addition to the thickness of the lid body 120, thereby securing a predetermined design length of the communication hole 118 a.

According to the above tire-hub assembly 101, the sub-air chamber member 10 can be omitted, in addition to the same operational effects as those of the tire-hub assembly 1 of the above embodiment. Thus, the tire hub assembly 101 can be reduced in weight and manufacturing cost. Further, according to the tire hub assembly 101, when the tire bead 24 is assembled to the bead seat 13, interference of the tire bead 24 with the sub air chamber member 10 can be more reliably suppressed.