Title:
互いに連結可能な自転車
Document Type and Number:
Japanese Patent JP5021726
Kind Code:
B2
Abstract:
The present invention has been made in an effort to provide one seat bicycle that can be connected to each other having advantages of the latter bicycle not toppling over during steered as well as converting the one seat bicycle to the bicycle built for two or more people when two or more bicycle are connected to each other in tandem. The bicycle that can be connected to each other, the bicycle comprising a fixed tube attached to a head tube for supporting a front fork and having a fixed shaft inserted therein, a top tube pivotally mounted on the fixed shaft, a clutch means for converting a relation between the fixed tube and top tube from an un-clutch state to a clutch state, a synchronizer for controlling a pivot angle of the top tube rotated to the fixed tube to be in accordance with a steering angle of a handle, wherein the clutch state is what the top tube is rotated to the fixed tube and the un-clutch state is what the top tube is not rotated.
Inventors:
Park Min Sik
Application Number:
JP2009511960A
Publication Date:
September 12, 2012
Filing Date:
February 29, 2008
Export Citation:
Assignee:
Park Min Sik
International Classes:
B62K13/02; B62K21/00; B62L3/08
Domestic Patent References:
| JP2004155398A | 2004-06-03 | |||
| JPS5168051A | 1976-06-12 | |||
| JPS5168052A | 1976-06-12 | |||
| JP2001506947A | 2001-05-29 | |||
| JP2007076400A | 2007-03-29 | |||
| JP2004175327A | 2004-06-24 | |||
| JP2003081075A | 2003-03-19 | |||
| JP2003220946A | 2003-08-05 | |||
| JP2004026037A | 2004-01-29 | |||
| JP2006131115A | 2006-05-25 |
Foreign References:
| US4458908A | 1984-07-10 | |||
| WO2006080855A1 | 2006-08-03 | |||
| WO2002026554A1 | 2002-04-04 |
Attorney, Agent or Firm:
Yasuhiko Murayama
Masatake Shiga
Takashi Watanabe
Shinya Mitsuhiro
Masatake Shiga
Takashi Watanabe
Shinya Mitsuhiro