Abstract:
PROBLEM TO BE SOLVED: To provide an electric motorcycle configured to increase load capacity for a battery.SOLUTION: An electric motorcycle includes: a pivot shaft 24 disposed between right and left pivot frames 23L, 23R; a swing arm 51 having a front end swingably supported by the pivot shaft 24; an electric motor unit 15 to be attached to the swing arm 51; and a battery 16 to be attached to the main frame to drive the electric motor unit 15. A drive sprocket 78 arranged behind the pivot shaft 24 to drive a rear wheel 12 is attached to the electric motor unit 15. A drive chain 80 is stretched between the drive sprocket 78 and a driven sprocket 79 attached to the rear wheel 12.
Abstract:
PROBLEM TO BE SOLVED: To hold a power storage member without impairing the aesthetic appearance of a bicycle in a holder holding the power storage member.SOLUTION: A holder 20 is inserted into a sheet tube 12 of a bicycle frame for holding a power storage member 30. The holder 20 includes a restriction part 20a and a holding part 20b. The restriction part 20a contacts with an opening 12a of the sheet tube 12 so as to restrict the movement of the holder 20 in an axial direction of the sheet tube 12 and a direction X that the sheet tube 12 extends. The holding part 20b holds the power storage member 30.
Abstract:
PROBLEM TO BE SOLVED: To provide a bicycle chain tensioner device basically including a base member, a pulley and an electrical storage unit.SOLUTION: The device includes the base member 60, the pulley member 62 and the electrical storage unit 64. The pulley member 62 includes a dynamo 84 that is supported by the base member 60 and rotated by a chain for generating electrical energy. The electrical storage unit 64 is disposed on the base member 60, and is electrically coupled to the dynamo 84 to store the electrical energy generated by the dynamo 84.
Abstract:
PROBLEM TO BE SOLVED: To provide a highly safe anti-theft function.SOLUTION: A battery outputs direct current power via a power line. A reader/writer reads authentification information of an electronic apparatus by outputting high-frequency signals via the power line to establish communication when the electronic apparatus is coupled to the battery via the power line. When a microcomputer establishes a first connection with the electronic apparatus, the microcomputer stores the read authentification information and controls the battery. When the microcomputer establishes a second connection and a subsequent connection from the second connection with the electronic apparatus, the microcomputer performs the authentification process of the electronic apparatus based on the read authentification information and the authentification information stored on the first connection and controls the battery in accordance with the result of the authentification process of the electronic apparatus. The technology can be applied to the battery device mounted on an electric assist bicycle, for example.