JPH08244401A - Wheel for vehicle - Google Patents
Wheel for vehicleInfo
- Publication number
- JPH08244401A JPH08244401A JP7945495A JP7945495A JPH08244401A JP H08244401 A JPH08244401 A JP H08244401A JP 7945495 A JP7945495 A JP 7945495A JP 7945495 A JP7945495 A JP 7945495A JP H08244401 A JPH08244401 A JP H08244401A
- Authority
- JP
- Japan
- Prior art keywords
- spoke
- air
- wheel
- hollow
- rim
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は車両用ホイールに係
り、特に、スポーク部を有する一体鋳造型のものに関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle wheel, and more particularly to an integrally cast type wheel having spokes.
【０００２】[0002]
【従来の技術】従来、車両用ホイールは、これにゴムタ
イヤを装着し、ブレーキ装置を連結して使用される。ゴ
ムタイヤには摩擦熱が生じるとともに、ブレーキ装置の
ブレーキプレートにも摩擦熱が生じ、これら摩擦熱によ
りタイヤ寿命を短縮したり、制動性能を低下させたりす
る。このため、このような摩擦熱をホイールを介して放
熱させるように構成されている。2. Description of the Related Art Conventionally, a vehicle wheel has been used in which a rubber tire is attached to a vehicle wheel and a brake device is connected thereto. Friction heat is generated in the rubber tire, and friction heat is also generated in the brake plate of the brake device, which shortens the tire life and reduces the braking performance. Therefore, the frictional heat is radiated through the wheel.
【０００３】一方、従来の自動二輪車等に用いられる車
両用ホイールとしては、ハブ部、スポーク部及びリム部
を一体鋳造したものが知られている。この場合、スポー
ク部を中空構造とし、軽量化された車両用ホイールも知
られている（例えば特開昭６０−９２１０１号，同６１
−９２７５４号）。On the other hand, as a vehicle wheel used in a conventional motorcycle or the like, one in which a hub portion, a spoke portion and a rim portion are integrally cast is known. In this case, a lightweight vehicle wheel is known in which the spokes have a hollow structure (for example, JP-A-60-92101 and 61-61).
-92754).
【０００４】このような中空のスポーク部を有する車両
用ホイールの場合、スポーク部のリム部側に、ホイール
の軸芯方向に開口された貫通孔が形成されている。この
貫通孔は、スポーク部に中空部を形成する際の中子を金
型に固定する巾木跡、又は中子を押えるピン跡であっ
て、後にこの貫通孔は水抜き孔として利用されている
（特開昭６１−９２７５４号）。In the case of a vehicle wheel having such a hollow spoke portion, a through hole opened in the axial direction of the wheel is formed on the rim portion side of the spoke portion. This through hole is a trace of a skirting board that fixes the core to the mold when forming the hollow portion in the spoke portion, or a pin trace that presses the core, and this through hole will be used as a drainage hole later. (JP-A-61-92754).
【０００５】しかしながら、上記従来の車両用ホイール
にあっては、スポーク部に形成されている貫通孔はホイ
ールの軸芯方向に開口しているため、ホイールが回転し
ても外気がスポーク部の中空部内を流通することがな
く、放熱効果が期待できないという問題点があった。However, in the above-mentioned conventional vehicle wheel, since the through hole formed in the spoke portion is open in the axial direction of the wheel, outside air is hollow in the spoke portion even when the wheel rotates. There is a problem that the heat dissipation effect cannot be expected because it does not circulate in the section.
【０００６】そこで、本出願人は、先に、特開平２−２
４９７０１号で一体鋳造型ホイールのスポーク部の中空
構造を利用して、放熱性能の優れた車両用ホイールを提
供している。Therefore, the applicant of the present invention has previously disclosed the Japanese Patent Laid-Open No. 2-2
No. 49701 utilizes the hollow structure of the spokes of the integrally cast wheel to provide a vehicle wheel with excellent heat dissipation performance.
【０００７】上記提案に係る車両用ホイールは、スポー
ク部の回転方向前面に外部とそのスポーク部の中空部と
を連通する吸気口を設けるとともに、前記回転方向前面
以外の面には前記中空部と外部とを連通する排気口を設
けたことを特徴としている。In the vehicle wheel according to the above proposal, an intake port is provided on the front surface of the spoke portion in the rotational direction so as to communicate the outside with the hollow portion of the spoke portion, and the hollow portion is provided on the surface other than the front surface in the rotational direction. It is characterized by providing an exhaust port that communicates with the outside.
【０００８】上記提案に係る車両用ホイールは、ホイー
ルの回転に伴い空気が吸気口からスポーク部内に流入
し、その流入した空気は排気口から外部へ放出される。
従って、リム部からスポーク部に伝導するタイヤ熱又は
ハブ部からスポーク部に伝導するブレーキ熱は、効果的
に放熱されるという優れた効果を有することができる。In the vehicle wheel according to the above proposal, as the wheel rotates, air flows from the intake port into the spoke portion, and the inflowing air is discharged to the outside from the exhaust port.
Therefore, the tire heat conducted from the rim portion to the spoke portion or the brake heat conducted from the hub portion to the spoke portion can have an excellent effect of being effectively radiated.
【０００９】[0009]
【発明が解決しようとする課題】ところで、上記提案に
係る車両用ホイールは、スポーク部内の空気の流れを利
用して放熱効果を高めることができるという優れた効果
を有しているが、本発明者らは、上記提案のスポーク部
内の空気の流れ方向を変えることにより、さらに優れた
放熱効果が得られることを見いだした。By the way, the vehicle wheel according to the above proposal has an excellent effect that the heat radiation effect can be enhanced by utilizing the flow of air in the spoke portion. The inventors have found that a more excellent heat dissipation effect can be obtained by changing the flow direction of air in the spokes proposed above.
【００１０】すなわち、本発明者らは、車両用ホイール
の回転によって生ずる遠心力を巧みに利用して、スポー
ク部の中空部内の空気の流れを高めて、さらに冷却効果
の優れた車両用ホイールを得ることができた。That is, the inventors of the present invention skillfully utilize the centrifugal force generated by the rotation of the vehicle wheel to enhance the air flow in the hollow portion of the spoke portion, and to provide a vehicle wheel having a further excellent cooling effect. I was able to get it.
【００１１】[0011]
【課題を解決するための手段】本発明に係る車両用ホイ
ールは、ハブ部と、そのハブ部から放射状に延長する中
空のスポーク部と、そのスポーク部の先端部を連結する
リム部とを有する車両用ホイールにおいて、前記スポー
ク部の前記ハブ部側の回転方向前面に、外部とそのスポ
ーク部の中空部とを連通する吸気口を設けるとともに、
そのスポーク部の前記リム部側の回転方向後方面に、そ
の中空部と外部とを連通する排気口を設けたことを特徴
としている。A vehicle wheel according to the present invention has a hub portion, hollow spoke portions extending radially from the hub portion, and a rim portion connecting the tip portions of the spoke portions. In the vehicle wheel, on the front surface in the rotation direction of the hub portion side of the spoke portion, while providing an intake port that communicates the outside and the hollow portion of the spoke portion,
An exhaust port that connects the hollow portion and the outside is provided on the rear surface of the spoke portion in the rotation direction on the rim portion side.
【００１２】[0012]
【作用】上記構成において、ホイールの回転に伴い大気
が吸気口からスポーク部の中空部内に流入し、その流入
した空気は排気口から外部へ放出される。従って、リム
部からスポーク部に伝導するタイヤ熱又はハブ部からス
ポーク部に伝導するブレーキ熱は、効果的に放熱され
る。In the above construction, as the wheel rotates, atmospheric air flows into the hollow portions of the spokes from the intake port, and the inflowing air is discharged from the exhaust port to the outside. Therefore, the tire heat conducted from the rim portion to the spoke portion or the brake heat conducted from the hub portion to the spoke portion is effectively radiated.
【００１３】[0013]
【実施例】以下、本発明の実施例を図面に基いて説明す
る。図１〜図３は、第１の実施例に係る車両用ホイール
を示すものであって、車両用ホイール（以下「ホイー
ル」という）ａは車軸に装着されるハブ部１と、このハ
ブ部１からほぼ放射状に延長する複数本の中空構造のス
ポーク部２と、これらのスポーク部２の先端部を連結す
るリム部３とを有し、アルミニウム等の軽合金の鋳造に
より一体的に形成されている。Embodiments of the present invention will be described below with reference to the drawings. 1 to 3 show a vehicle wheel according to a first embodiment, in which a vehicle wheel (hereinafter referred to as "wheel") a is a hub portion 1 mounted on an axle, and this hub portion 1 Has a plurality of spokes 2 having a hollow structure extending substantially radially and a rim 3 connecting the tips of the spokes 2, and is integrally formed by casting a light alloy such as aluminum. There is.
【００１４】本実施例のハブ部１には、ブレーキプレー
ト取付用孔４，４…が同心円上に等間隔をもって設けら
れているとともに、スポーク部２との境界面を仕切る外
周壁５が設けられている。In the hub portion 1 of this embodiment, brake plate mounting holes 4, 4, ... Are provided in concentric circles at equal intervals, and an outer peripheral wall 5 for partitioning a boundary surface with the spoke portion 2 is provided. ing.
【００１５】スポーク部２のホイールａの回転方向（矢
印イ方向）の面、すなわち回転方向前面（以下「前面」
という）６は、ハブ部１の外周接線方向に位置し、一
方、その反対面、すなわち回転方向後方面（以下「後方
面」という）７の延長線は、ハブ部１の中心に位置して
いる。The surface of the wheel 2 of the spoke portion 2 in the direction of rotation (direction of arrow A), that is, the front surface in the direction of rotation (hereinafter referred to as "front surface")
6) is located in the tangential direction of the outer periphery of the hub portion 1, while the opposite surface, that is, the extension line of the rear surface in the rotational direction (hereinafter referred to as “rear surface”) 7 is located at the center of the hub portion 1. There is.
【００１６】スポーク部２は、図１のＡ−Ａ線断面図で
ある図２（ａ）及び図１のＢ−Ｂ線断面図である図３
（ｂ）に示されるように、ハブ部１側からリム部３側方
向に漸次細くなるように形成され、かつその断面形状
は、前面６側よりも後方面７側が小さくなる卵形に形成
されていて、空気抵抗が可及的に小さくなるように工夫
されている。The spoke portion 2 is a sectional view taken along line AA of FIG. 1 and FIG. 3A is a sectional view taken along line BB of FIG.
As shown in (b), it is formed so as to become gradually thinner from the hub portion 1 side toward the rim portion 3 side, and its cross-sectional shape is formed into an oval shape in which the rear surface 7 side is smaller than the front surface 6 side. However, the air resistance is designed to be as small as possible.
【００１７】スポーク部２の前面６のハブ部１側には、
スポーク部２内に設けられた中空部８と外部（大気）と
を連通する吸気口９が設けられているとともに、後方面
７のリム部３側には、中空部８と外部（大気）とを連通
する排気口１０が設けられている。On the hub portion 1 side of the front surface 6 of the spoke portion 2,
An intake port 9 that communicates the hollow portion 8 provided in the spoke portion 2 with the outside (atmosphere) is provided, and the hollow portion 8 and the outside (atmosphere) are provided on the rear surface 7 side of the rim portion 3. An exhaust port 10 that communicates with each other is provided.
【００１８】吸気口９及び排気口１０は、中空部８を得
るための中子の巾木跡を利用して容易に形成することが
できる。すなわち、従来の水抜き兼用の貫通孔と同様
に、ホイールａの鋳造時に作ることができる。そして、
吸気口９及び排気口１０は、図２（ａ）の右側面図であ
る図２（ｂ）、及び図３（ｂ）の左側面図である図３
（ａ）に示されるように、スポーク部２の長手方向に沿
った長穴の形状をそれぞれ呈している。これは、ホイー
ルａの車軸方向から見たときに、吸気口９及び排気口１
０がなるべく見えないようにするためである。The intake port 9 and the exhaust port 10 can be easily formed by using the core print of the core for obtaining the hollow portion 8. That is, like the conventional through hole that also serves as drainage, it can be formed at the time of casting the wheel a. And
The intake port 9 and the exhaust port 10 are the right side view of FIG. 2A, FIG. 2B, and the left side view of FIG. 3B.
As shown in (a), each of the spokes 2 has an elongated hole shape along the longitudinal direction. This is the intake port 9 and the exhaust port 1 when viewed from the axle direction of the wheel a.
This is to make 0 as invisible as possible.
【００１９】以上の構成によるホイールａが矢印イ方向
に回転されると、前面６側の気圧が後方面７より高くな
り、また、吸気口９は、スポーク部２の回転方向前面に
開口するため、ここから外気（空気）が強制的に中空部
８内に流入し、さらに、遠心力により中空部８内をハブ
部１側へ移動され、排気口１０から外部へ放出される
（図１の矢印ロ参照）。When the wheel a having the above structure is rotated in the direction of arrow a, the atmospheric pressure on the front surface 6 side becomes higher than that on the rear surface 7, and the intake port 9 opens to the front surface in the rotational direction of the spoke portion 2. The outside air (air) is forced to flow into the hollow portion 8 from here, and is further moved to the hub portion 1 side in the hollow portion 8 by the centrifugal force and discharged to the outside from the exhaust port 10 (see FIG. 1). See arrow B).
【００２０】排気口１０の位置は、スポーク部２のリム
部３側に位置しているため周速度が速く、したがって、
吸気口９から吸入された空気は遠心力の作用によりリム
部３側に効果的に移動して、排気口１０から排気され
る。したがって、中空部８内の空気流は一段と促進され
る。Since the position of the exhaust port 10 is located on the rim portion 3 side of the spoke portion 2, the peripheral speed is high, and therefore,
The air taken in through the intake port 9 is effectively moved to the rim portion 3 side by the action of centrifugal force, and is exhausted through the exhaust port 10. Therefore, the air flow in the hollow portion 8 is further promoted.
【００２１】また、排気口１０は、スポーク部２の回転
方向背面に位置しているため負圧に維持され、したがっ
て吸気口９と排気口１０との圧力差が大きく、この圧力
によっても中空部８内の空気の流れが一層促進される。Further, since the exhaust port 10 is located on the rear surface of the spoke portion 2 in the rotational direction, the exhaust port 10 is maintained at a negative pressure. Therefore, the pressure difference between the intake port 9 and the exhaust port 10 is large, and this pressure also causes a hollow portion. The air flow in 8 is further promoted.
【００２２】このため、ホイールａは、スポーク部２の
外周面からの放熱と、スポーク部内の強制的な空気流通
による放熱によって効果的に冷却される。Therefore, the wheel a is effectively cooled by the heat radiation from the outer peripheral surface of the spoke portion 2 and the heat radiation by the forced air flow in the spoke portion.
【００２３】図４は、本発明の第２の実施例を示すもの
であって、上記第１の実施例と相違する点は、ハブ部１
の側壁５が省略されたところにあり、各スポーク部２の
中空部８が連通状態に構成されている。FIG. 4 shows a second embodiment of the present invention. The difference from the first embodiment is that the hub portion 1
The side wall 5 is omitted, and the hollow portion 8 of each spoke portion 2 is configured to communicate with each other.
【００２４】本実施例においても、上述の実施例と同様
に、中空部８内に空気の流通が生じホイールａ′の冷却
効果を得ることができる。しかも、この実施例において
は、スポーク部２の中子が単一にでき、かつ、中子の支
持する箇所が均等であるため、中子支持を精密に行なう
ことができる。したがって、スポーク部２およびハブ部
１の肉厚をより均一化できる効果が得られる。Also in this embodiment, as in the above-described embodiments, air is circulated in the hollow portion 8 and the cooling effect of the wheel a'can be obtained. In addition, in this embodiment, since the core of the spoke portion 2 can be made single and the locations of the core to be supported are even, the core can be accurately supported. Therefore, the effect that the wall thicknesses of the spoke portion 2 and the hub portion 1 can be made more uniform can be obtained.
【００２５】図５は、本発明の第３の実施例を示すもの
であって、上記第２の実施例とは、吸気口９をハブ部１
の側壁面１１に設けた点が相違している。FIG. 5 shows a third embodiment of the present invention, which is different from the second embodiment in that the intake port 9 is connected to the hub portion 1.
The difference is that it is provided on the side wall surface 11.
【００２６】本実施例にけるホイールａ″においても、
中空部８内の空気は遠心力により移動できるので、上述
の実施例と同様な効果が得られる。なお、本実施例で
は、吸気口９はハブ部１に設けた例を示したが、スポー
ク部２とハブ部３との接合箇所に設けるようにしても同
じ効果を得ることができる。Also in the wheel a "in this embodiment,
Since the air in the hollow portion 8 can be moved by the centrifugal force, the same effect as the above-mentioned embodiment can be obtained. Although the intake port 9 is provided in the hub portion 1 in the present embodiment, the same effect can be obtained by providing the intake port 9 in the joint portion between the spoke portion 2 and the hub portion 3.
【００２７】なお、上述した各実施例においては、吸気
口９および排気口１０は、１つのスポーク部２にそれぞ
れ１箇としたが、スポーク部２の強度の許す範囲内であ
れば複数設けるようにしてもよい。しかし、いずれにし
ても吸気口９と排気口１０との位置関係は、排気口１０
が吸気口９よりも外側、つまりホイールａ（ａ′，
ａ″）の車軸位置を中心として排気口１０は吸気口９よ
りも離れている必要がある。In each of the above-described embodiments, one intake port 9 and one exhaust port 10 are provided for each spoke portion 2. However, a plurality of intake ports 9 and exhaust ports 10 may be provided as long as the strength of the spoke portions 2 allows. You may However, in any case, the positional relationship between the intake port 9 and the exhaust port 10 is that the exhaust port 10
Is outside the intake port 9, that is, the wheel a (a ',
The exhaust port 10 needs to be separated from the intake port 9 around the axle position of a ″).
【００２８】また、上述の実施例では、スポーク部２は
３本としたが、これを４本以上としてもよいことは勿論
である。In the above embodiment, the number of spokes 2 is three, but it is needless to say that the number of spokes may be four or more.
【００２９】[0029]
【発明の効果】この発明に係るホイールは、スポーク部
のハブ部側の前面に外部とそのスポーク部の中空部とを
連通する吸気口を設けるとともに、そのスポーク部のリ
ム部側の後方面にその中空部と外部とを連通する排気口
を設けたので、ホイールの回転に伴って吸気口から中空
部に空気が流入し、その流入した空気は排気口から排出
されるため、冷却効果の優れたホイールとすることがで
きる。The wheel according to the present invention is provided with an intake port that communicates the outside with the hollow part of the spoke portion on the front surface of the spoke portion on the hub portion side, and the rear surface of the spoke portion on the rim portion side. Since the exhaust port that connects the hollow part and the outside is provided, air flows into the hollow part from the intake port as the wheel rotates, and the inflowing air is exhausted from the exhaust port, resulting in an excellent cooling effect. It can be a wheel.
【図１】本発明の第１の実施例に係るホイールの一部切
断正面図である。FIG. 1 is a partially cutaway front view of a wheel according to a first embodiment of the present invention.
【図２】（ａ）は図１のＡ−Ａ線拡大断面図、（ｂ）は
（ａ）の右側面図である。2A is an enlarged cross-sectional view taken along the line AA of FIG. 1, and FIG. 2B is a right side view of FIG.
【図３】（ａ）は図１のＢ−Ｂ線拡大断面図、（ｂ）は
（ａ）の左側面図である。3A is an enlarged sectional view taken along line BB of FIG. 1, and FIG. 3B is a left side view of FIG.
【図４】本発明の第２の実施例に係るホイールの一部切
断正面図である。FIG. 4 is a partially cutaway front view of a wheel according to a second embodiment of the present invention.
【図５】本発明の第３の実施例に係るホイールの一部断
面正面図である。FIG. 5 is a partially sectional front view of a wheel according to a third embodiment of the present invention.
ａ，ａ′，ａ″ 車両用ホイール（ホイール） １ ハブ部 ２ スポーク部 ３ リム部 ８ 中空部 ９ 吸気口 １０ 排気口 a, a ', a "Vehicle wheel (wheel) 1 Hub part 2 Spoke part 3 Rim part 8 Hollow part 9 Intake port 10 Exhaust port
Claims (1)
する中空のスポーク部と、そのスポーク部の先端部を連
結するリム部とを有する車両用ホイールにおいて、 前記スポーク部の前記ハブ部側の回転方向前面に、外部
とそのスポーク部の中空部とを連通する吸気口を設ける
とともに、そのスポーク部の前記リム部側の回転方向後
方面に、その中空部と外部とを連通する排気口を設けた
ことを特徴とする車両用ホイール。1. A vehicle wheel having a hub portion, hollow spoke portions extending radially from the hub portion, and a rim portion connecting the tip portions of the spoke portions, wherein the spoke portion is closer to the hub portion. An intake port that communicates the outside with the hollow portion of the spoke portion is provided on the front surface in the rotation direction of the, and an exhaust port that communicates the hollow portion with the outside is provided on the rotation direction rear surface of the spoke portion on the rim side. A vehicle wheel characterized by being provided with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP07945495A JP3665662B2 (en) | 1995-03-10 | 1995-03-10 | Vehicle wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP07945495A JP3665662B2 (en) | 1995-03-10 | 1995-03-10 | Vehicle wheel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08244401A true JPH08244401A (en) | 1996-09-24 |
| JP3665662B2 JP3665662B2 (en) | 2005-06-29 |
Family
ID=13690333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP07945495A Expired - Lifetime JP3665662B2 (en) | 1995-03-10 | 1995-03-10 | Vehicle wheel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3665662B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014237361A (en) * | 2013-06-07 | 2014-12-18 | 本田技研工業株式会社 | Wheel for saddle-riding type vehicle |
| CN104527326A (en) * | 2015-01-13 | 2015-04-22 | 四川迅吉科技有限责任公司 | Novel automobile hub |
| CN107914511A (en) * | 2017-11-28 | 2018-04-17 | 梧州市金正原电子科技有限公司 | A kind of aluminium alloy automobile hub |
| CN110978889A (en) * | 2019-12-31 | 2020-04-10 | 安徽永昌金属制品有限公司 | Motorcycle wheel hub |
-
1995
- 1995-03-10 JP JP07945495A patent/JP3665662B2/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014237361A (en) * | 2013-06-07 | 2014-12-18 | 本田技研工業株式会社 | Wheel for saddle-riding type vehicle |
| CN104527326A (en) * | 2015-01-13 | 2015-04-22 | 四川迅吉科技有限责任公司 | Novel automobile hub |
| CN107914511A (en) * | 2017-11-28 | 2018-04-17 | 梧州市金正原电子科技有限公司 | A kind of aluminium alloy automobile hub |
| CN110978889A (en) * | 2019-12-31 | 2020-04-10 | 安徽永昌金属制品有限公司 | Motorcycle wheel hub |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3665662B2 (en) | 2005-06-29 |
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