 Torque and torsion angle measuring apparatus |
| We claim: 1. Torque and torsion angle measuring apparatus comprising a shaft (8) having an input ... |
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| Torque sensor |
| Accordingly, it is an object of the present invention to provide a torque sensor having its ... |
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| Torque sensor |
| In view of the problems experienced with the conventional structures, a first object of the present ... |
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| Fixing structure for coil assembly and power-steering device |
| The present invention was designed in the light of the above described problems with prior-art ... |
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| Torque sensor |
| In view of the foregoing, an object of the present invention is to provide a torque sensor which ... |
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| Alternator fan |
| OF THE INVENTION FIG. 1 illustrates an automotive alternator rotor and stator assembly, shown ... |
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| Integral motor and control |
| What is claimed is: 1. A refrigeration system comprising a compressor, a refrigerant carrying ... |
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| Inner stator of drum type motor |
| In the winding engineering in the prior art motor, if the winding is arranged linearly, more space ... |
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| Alternator |
| Accordingly, the present invention has been made with a view toward solving the problems described ... |
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| Motor core and motor using the same |
| The present invention reduces the cycle of the cogging torque produced due to a basic configuration ... |
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Driving force auxiliary device
| Details |
Inventors: Miyazawa, Hiroshi; Takada, Yutaka; Shinozaki, Junichiro; Tanaka, Kuniaki; Nakazato, Hiroshi; Shinkai, Katsumi;
Assignee: Seiko Epson Corporation (Tokyo, JP)
Primary Examiner: Marmor; Charles A.
Assistant Examiner: Parekh; Ankur
Attorney, Agent or Firm: Kanesaka & Takeuchi
A driving force auxiliary device for combining a manpower drive force and a motor drive force comprises a manpower drive unit, an auxiliary power drive unit, and a leg power detecting means, wherein the manpower drive unit has a first one-way clutch and an elastic body 16 for transmitting a turning force disposed on a crank shaft to transmit a manpower drive force to an output, gear 17, a motor drive force of the auxiliary power drive unit is added to the manpower drive means at the outer periphery of the crank shaft via a second one-way clutch, and the leg power detecting unit includes first and second rotor members 31, 32 disposed at the front and rear of the elastic body 16, a pair of bevel gears 33, 34 which is interconnected with the first and second rotor members 31, 32 respectively, a bevel gear 35 is disposed to be engaged between the bevel gears 33, 34, an output shaft 37 which is fixed with and intersected at right angles with a supporting shaft 36 for supporting the bevel gear 35, and a sensor 38 connected to the output shaft 37. Thus, a compact driving force auxiliary device can be obtained. |
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DETAILED DESCRIPTION One aspect of the present invention relates to a driving force auxiliary device for combining a manpower drive force and a motor drive force comprising a manpower drive means, an auxiliary power drive means, and a leg power detecting means, wherein: the manpower drive means has a driving force transmitting mechanism having first and second rotors disposed on the outer periphery of a crank shaft to which a leg force is transmitted, the driving force transmitting mechanism containing a first one-way clutch and an elastic body for transmitting the manpower drive force, the auxiliary power drive means has a motor and a reduction gear mechanism, the driving force from the motor is added to the driving force transmitting mechanism at the outer periphery of the crank shaft via a second one-way clutch, and the leg power detecting means has a sensor or sensors to detect a difference in rotation between the first and second rotors which are disposed at the front and rear of a power transmitting route of the elastic body.
Another aspect of the present invention relates to a driving force auxiliary device, wherein the reduction gear mechanism of the auxiliary power drive means comprises reduction gears which are arranged in a staggered configuration.
Still another aspect of the present invention relates to a driving force auxiliary device, wherein the centers of respective gears of the speed reducing gear train are disposed within a virtual square with a virtual line connecting the motor M and the crank shaft and the outer diameter of the motor as each side.
Yet another aspect of the present invention relates to a driving force auxiliary device, wherein the leg power detecting means comprises a differential gear mechanism, the first and second rotors are interconnected with two shafts of the differential gear mechanism, and a third shaft of the differential gear mechanism is interconnected with a sensor.
Another aspect of the present invention relates to a driving force auxiliary device, wherein a mechanism for mechanically increasing the rotation is disposed in a space between the first and second rotors and the differential gear mechanism or in a space between the differential gear mechanism and the sensor
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Generators or Motors 
