IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0213082
(2002-08-07)
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우선권정보 |
JP-0271640 (2001-09-07) |
발명자
/ 주소 |
- Makuta, Yohei
- Takayanagi, Shinji
- Sakamoto, Tomokazu
|
출원인 / 주소 |
- Honda Giken Kogyo Kabushiki Kaisha
|
대리인 / 주소 |
Birch, Stewart, Kolasch &
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인용정보 |
피인용 횟수 :
6 인용 특허 :
11 |
초록
▼
A drum brake for braking a wheel disposed on the inside in the radial direction of an electric motor. The drum of the drum brake and an electric motor are disposed separate from each other, and thus wear powders of a brake shoe do not adhere to a permanent magnet of the electric motor. As a result,
A drum brake for braking a wheel disposed on the inside in the radial direction of an electric motor. The drum of the drum brake and an electric motor are disposed separate from each other, and thus wear powders of a brake shoe do not adhere to a permanent magnet of the electric motor. As a result, the wear powders do not adversely influence the performance of the electric motor, and the performance of the electric motor is maintained. The electric motor and the drum brake are disposed concentrically, so that the width of the wheel is reduced. Thus, a small and compact wheel is realized.
대표청구항
▼
1. A wheel structure for a vehicle, comprising:a wheel with a built-in electric motor for driving said vehicle, the electric motor having a rotary magnet member with a cylindrical outer surface fitted against a cylindrical inner surface of the wheel; a brake mechanism for braking the wheel disposed
1. A wheel structure for a vehicle, comprising:a wheel with a built-in electric motor for driving said vehicle, the electric motor having a rotary magnet member with a cylindrical outer surface fitted against a cylindrical inner surface of the wheel; a brake mechanism for braking the wheel disposed on an inside of said wheel in a radial direction of said electric motor; and a swing arm for rotatably supporting said wheel, the swing arm serving as a brake panel of the brake mechanism. 2. The wheel structure according to claim 1, wherein said electric motor and the brake mechanism are provided on the same side of a disc of the wheel.3. The wheel structure according to claim 1, wherein said brake mechanism is a drum brake.4. The wheel structure according to claim 1, further comprising:a stator of the electric motor attached to the swing arm. 5. The wheel structure according to claim 4, wherein the swing arm includes a projection around an axle which serves as said brake panel, and a pair of brake shoe shafts are attached to the projection.6. The wheel structure according to claim 3, further comprising;a swing arm for rotatably supporting said wheel, the swing arm serving as a brake panel of the drum brake; and a stator of the electric motor attached to the swing arm. 7. The wheel structure according to claim 6, wherein the swing arm includes a projection around an axle which serves as said brake panel, and a pair of brake shoe shafts are attached to the projection.8. The wheel structure according to claim 1, wherein said rotary magnet member rotates integrally with the wheel, the rotary magnet member having a magnetic ring and a permanent magnet fixed to the magnetic ring, and the magnetic ring being positioned in the wheel by a positioning pin.9. The wheel structure according to claim 8, wherein the positioning pin includes at least three positioning pins for positioning the magnetic ring.10. The wheel structure according to claim 8, wherein a rim of the wheel is provided with a magnetic member fitting portion to which the rotary magnet member is fit.11. A wheel structure for a vehicle, comprising:a wheel with a built-in electric motor for driving said vehicle; a brake mechanism for braking the wheel, the brake mechanism being disposed on an inside in a radial direction of said electric motor; and a swing arm for rotatably supporting said wheel, the swine arm serving as a brake panel of the brake mechanism, the electric motor further comprising a rotary magnet member having a magnetic ring and a permanent magnet fixed to the magnetic ring, the magnetic ring having a cylindrical outer surface fitting against a cylindrical inner surface of the wheel so that the rotary magnet member rotates integrally with the wheel. 12. The wheel structure according to claim 11, wherein said electric motor and the brake mechanism are provided on the same side of a disc of the wheel.13. The wheel structure according to claim 11, wherein said brake mechanism is a drum brake.14. The wheel structure according to claim 11, further comprising:a stator of the electric motor attached to the swing arm. 15. The wheel structure according to claim 14, wherein the swing arm includes a projection around an axle which serves as said brake panel, and a pair of brake shoe shafts are attached to the projection.16. The wheel structure according to claim 13, further comprising:a swing arm for rotatably supporting said wheel, the swing arm serving as a brake panel of the drum brake; and a stator of the electric motor attached to the swing arm. 17. The wheel structure according to claim 14, wherein the swing arm includes a projection around an axle which serves as said brake panel, and a pair of brake shoe shafts are attached to the projection.18. The wheel structure according to claim 11, further comprising a positioning pin for positioning the magnetic ring.19. The wheel structure according to claim 18, wherein the positioning pin includes at least three positioning pins for positioning the magnetic ring.20. The wheel structure according to claim 18, wherein a rim of the wheel is provided with a magnetic member fitting portion to which the rotary magnet member is fit.
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