Electric assist device for a bicycle and bicycle equipped with such a device
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B62M-006/75
B62M-006/50
B62J-007/04
H02K-007/00
H02K-007/108
B62M-006/90
출원번호
US-0547892
(2016-02-09)
등록번호
US-10167050
(2019-01-01)
우선권정보
FR-15 51113 (2015-02-11)
국제출원번호
PCT/EP2016/052668
(2016-02-09)
국제공개번호
WO2016/128369
(2016-08-18)
발명자
/ 주소
Olsommer, David
출원인 / 주소
Compagnie Generale des Etablissements Michelin
대리인 / 주소
Venable LLP
인용정보
피인용 횟수 :
0인용 특허 :
5
초록▼
An electrical assistance device for a bicycle includes an electrical machine, a drive roller, an actuatable positioner, and a controller. The electrical machine includes a support arm and a rotor shaft, which carries the drive roller via a free wheel. The support arm is mounted on the bicycle by a p
An electrical assistance device for a bicycle includes an electrical machine, a drive roller, an actuatable positioner, and a controller. The electrical machine includes a support arm and a rotor shaft, which carries the drive roller via a free wheel. The support arm is mounted on the bicycle by a pivot shaft, which pivots between a drive position and a separated position. The actuatable positioner releasably holds the support arm in the separated position. The controller controls operation of the electrical machine and is able to cause the electrical machine to produce a motive torque in a direction toward a wheel of the bicycle driven in forward movement. The controller also is able to deliver an electrical pulse to the electrical machine to produce a reaction torque in a direction opposite to the motive torque to cause the support arm to pivot, causing actuation of the positioner.
대표청구항▼
1. An electrical assistance device for a bicycle, the device comprising: an electrical machine that includes a support arm and a rotor shaft, wherein the rotor shaft supports a drive roller via a free-wheel member, wherein the support arm includes a pivot shaft that is mountable on the bicycle, wher
1. An electrical assistance device for a bicycle, the device comprising: an electrical machine that includes a support arm and a rotor shaft, wherein the rotor shaft supports a drive roller via a free-wheel member, wherein the support arm includes a pivot shaft that is mountable on the bicycle, wherein a pivot axis of the pivot shaft is located at a distance from an axis of the rotor shaft, and wherein the support arm is pivotable in a first pivoting direction in order to place the drive roller in contact with an annular contact region of a wheel of the bicycle when in a driving position for a forward movement, and is pivotable in a second pivoting direction to a separated position in order to separate the drive roller from the annular contact region when not in a driving position for forward movement;a restoring device that acts on the support arm in the first pivoting direction;an actuatable positioner that holds the support arm releasably in the separated position of the drive roller; anda controller that controls operation of the electrical machine,wherein the controller supplies the electrical machine with electrical energy to produce a motive torque in a direction of the wheel of the bicycle being driven in the forward movement via a free-wheel member and the drive roller, andwherein the controller delivers an electrical pulse to the electrical machine to produce a reaction torque in a direction opposite to the direction of the motive torque when the bicycle is not being driven in the forward movement, causing the support arm to pivot in the second pivoting direction, and causing actuation of the positioner. 2. The device according to claim 1, wherein the controller includes a speed sensor that senses a forward-movement speed of the bicycle, and wherein the controller delivers an electronic signal for selectively setting the rotor shaft in rotation in a reverse direction as a function of the electronic signal emitted by the speed sensor. 3. The device according to claim 1, wherein the controller includes a rotation sensor that senses a rotation of pedals of the bicycle, and wherein the controller delivers an electronic signal for selectively setting the rotor shaft in rotation in a reverse direction as a function of the electronic signal emitted by the rotation sensor. 4. The device according to claim 1, wherein the controller includes a position sensor that senses a position of the support arm. 5. The device according to claim 1, wherein the controller includes a control handle, which provides a signal causing the controller to supply the electrical machine with the electrical energy when the bicycle is being driven in the forward movement. 6. The device according to claim 1, wherein the actuatable positioner includes: a link rod connected to the support arm and provided with an interlock finger,a retaining stop,a first cam, which guides the interlock finger when the support arm is pivoted in the second pivoting direction until the interlock finger reaches the retaining stop corresponding to the separated position of the drive roller, anda second cam, which guides the interlock finger when the support arm is pivoted in the first pivoting direction, in order to release the interlock finger from the retaining stop. 7. The device according to claim 1, wherein the drive roller includes teeth structured to, when in a drive position, engage with teeth of the annular contact region of the wheel of the bicycle. 8. The device according to claim 1, wherein the annular contact region is arranged on a tire of the wheel of the bicycle. 9. The device according to claim 1, wherein the electrical machine includes a rotor supported by the rotor shaft and positioned around a stator. 10. The device according to claim 9, wherein the electrical machine includes a peripheral casing secured to the rotor shaft and supporting the rotor. 11. The device according to claim 1, wherein, when the drive roller is in the separated position, the controller delivers an electrical signal for producing the reaction torque after production of the motive torque. 12. A bicycle comprising: a wheel;a support; andan electrical assistance device that includes:(a) an electrical machine that includes a support arm and a rotor shaft, wherein the rotor shaft supports a drive roller via a free-wheel member, wherein the support arm includes a pivot shaft that is mountable on the support, wherein a pivot axis of the pivot shaft is located at a distance from an axis of the rotor shaft, and wherein the support arm is pivotable in a first pivoting direction in order to place the drive roller in contact with an annular contact region of the wheel when in a driving position for forward movement, and is pivotable in a second pivoting direction to a separated position in order to separate the drive roller from the annular contact region when not in a driving position for a forward movement,(b) restoring device that acts on the support arm in the first pivoting direction,(c) an actuatable positioner that holds the support arm releasably in the separated position of the drive roller, and(d) a controller that controls operation of the electrical machine,wherein the controller supplies the electrical machine with electrical energy to produce a motive torque in a direction of the wheel when being driven in the forward movement via a free-wheel member and the drive roller, andwherein the controller delivers an electrical pulse to the electrical machine to produce a reaction torque in a direction opposite to the direction of the motive torque when not being driven in the forward movement, causing the support arm to pivot in the second pivoting direction, and causing actuation of the positioner.
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이 특허에 인용된 특허 (5)
Schwartz Theodore F. (11660 St. Andrews Way Scottsdale AZ 85254), Bicycle drive means.
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