Drive unit and electric assist bicycle
A drive unit and electric power assist technology, which is applied in the directions of rider drive, vehicle components, one-way clutch, etc., can solve the problems of heavy load, lack of transmission mechanism, etc., and achieve the effect of reducing load
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
no. 1 approach
[0053] figure 1 , figure 2 1 in it is the electric assist bicycle according to the first embodiment of the present invention. Such as figure 1 , figure 2 etc., the electric power-assisted bicycle 1 has a frame 2, a front wheel 3, a rear wheel 4, a handlebar 5, a seat 6, a pedal 8, a drive unit 10 equipped with a motor 9, and a secondary motor for supplying electric power to the motor 9. The accumulator 11 or the like constituted by a battery can travel by adding an auxiliary driving force (assist) generated by the electric motor 9 to the human driving force generated by the stepping force from the pedal 8 .
[0054] Such as Figure 3 ~ Figure 5 As shown, the drive unit 10 has an electric motor 9, a crankshaft 14 rotatable by a human driving force, a resultant force transmission body 15 rotatable by a combined driving force of a synthetic human driving force and an auxiliary driving force, and a resultant force transmission body 15 provided on the resultant force transm...
no. 2 approach
[0114] In the second embodiment, as Figure 20 ~ Figure 22 As shown, the first and second photosensors 109a and 109b are adjacently arranged in a direction D perpendicular to the axial direction A. As shown in FIG. In addition, the length of the second detection piece 110b is formed to be shorter than the length of the first detection piece 110a.
[0115] Accordingly, if Figure 20 As shown, when the low gear is selected, the movable switching member 82 moves to the low gear switching position L, the detection light 113 of the first light sensor 109a is blocked by the first detection piece 110a, and the detection light of the second light sensor 109b The light 113 is blocked by the second detection sheet 110b. Thereby, both the first light sensor 109a and the second light sensor 109b are switched on.
[0116] Additionally, if Figure 21 As shown, when the high-speed gear is selected, the movable switching member 82 moves to the high-speed gear switching position H, the det...
no. 3 approach
[0120] In the third embodiment, if Figure 23 ~ Figure 25 As shown, the first and second photosensors 109a and 109b are arranged adjacent to each other in the axial direction A. As shown in FIG. In addition, only one detection piece 110 is provided on the outer peripheral portion of the link cylinder 90 .
[0121] Accordingly, if Figure 23 As shown, when the low gear is selected, the movable switching member 82 moves to the low gear switching position L, and the detection light 113 of the first light sensor 109 a and the detection light 113 of the second light sensor 109 b are blocked by the detection piece 110 . Thereby, both the first light sensor 109a and the second light sensor 109b are switched on.
[0122] Additionally, if Figure 24 As shown, when the high-speed gear is selected, the movable switching member 82 moves to the high-speed gear switching position H, the detection light 113 of the first light sensor 109a is received by the light receiving part 114, and th...
PUM
Login to View More Abstract
Description
Claims
Application Information
Login to View More