Electric generator for bicycle

• US 20100019676A1
• Filed: 07/28/2008
• Published: 01/28/2010
• Est. Priority Date: 07/28/2008
• Status: Abandoned Application

• Current Assignee: Jen-Yen Yen
• Original Assignee: Jen-Yen Yen
• Inventors: Yen, Jen-Yen
• Application Number:
  US12/217,081
• Publication Number:
  US 20100019676A1
• Time in Patent Office: Days
• US Class Current: 315/78
• CPC Class Codes: B62J 6/12 Dynamos arranged in the wheel hub

Abstract

An electric generator for a bicycle includes a housing for attaching to a bicycle frame, a rotary member rotatably received in the housing for engaging with an axle of the bicycle, a reduction gearing received in the housing and engaged with the rotary member, a motor received in the housing and having a pinion attached to a spindle and engaged with the reduction gearing for being driven by the reduction gearing and the rotary member and for generating an electric energy, a battery electrically coupled to the motor for receiving and storing the electric energy generated by the motor and for supplying the electric energy to energize a light device, or other electric facilities.

Claims

1. An electric generator for a bicycle comprising:

a housing for attaching to a bicycle frame, and including a chamber formed therein,

a rotary member rotatably received in said chamber of said housing for engaging with an axle of the bicycle and for being rotated by the axle,

a reduction gearing received in said chamber of said housing and engaged with said rotary member,

a motor received in said chamber of said housing and including a pinion attached to a spindle of said motor and engaged with said reduction gearing for being driven by said reduction gearing and said rotary member and for generating an electric energy,

a battery electrically coupled to said motor for receiving and storing the electric energy generated by said motor, and

a light device electrically coupled to said battery for being energized by said battery.

2. The electric generator as claimed in claim 1 further comprising an electric coupler electrically coupled to said battery for electrically coupling to said light device.

3. The electric generator as claimed in claim 1 further comprising a circuit board received in said chamber of said housing and attached to said housing.

4. The electric generator as claimed in claim 1 further comprising an indicating light device electrically coupled to said battery for being energized by said battery to generate an indicating light.

5. The electric generator as claimed in claim 1 further comprising a switch electrically coupled to said battery for controlling the electric energy to said light device.

6. The electric generator as claimed in claim 1, wherein said housing includes a cover secured to said housing for closing said chamber of said housing and for retaining said rotary member and said reduction gearing and said motor in said housing.

7. The electric generator as claimed in claim 1, wherein said rotary member includes a primary gear attached thereto and rotated in concert with said rotary member, said reduction gearing includes a driven gear rotatably attached to said housing and meshed with said primary gear, an intermediate gear rotatably attached to said housing and having a pinion engaged with said driven gear, and a follower gear rotatably attached to said housing and having a pinion engaged with said intermediate gear, and said follower gear is engaged with said pinion of said motor.

8. The electric generator as claimed in claim 7, wherein said housing includes a plate secured to said housing for rotatably supporting said intermediate gear and said follower gear.

9. The electric generator as claimed in claim 1, wherein said housing includes an opening formed therein and communicating with said chamber of said housing for receiving the axle.

10. The electric generator as claimed in claim 1, wherein said housing includes a bracket secured to said housing and having an opening formed in said bracket for accommodating the axle.