Title:
TRICYCLE
Document Type and Number:
WIPO Patent Application WO/2010/029949
Kind Code:
A1
Abstract:
Provided is a tricycle which is formed with a compact size, makes it possible to easily change the forward and reverse directions, and can move steadily on a road etc. when the gaze is directed off in the distance. A first crankshaft (41) and a second crankshaft (42) are pivotably supported to rotate freely on a frame (2). A drive sprocket (43) and sprocket (44) are secured to each end part of the first crankshaft (41). A kick lever (45), which has a pedal (451), and a crank arm (46), which pivotably supports a movable sprocket (441), are secured to each end part of the second crankshaft (42). A first chain (432) winds around a driven sprocket (431) provided at the hub of a rear wheel (WR) and a drive sprocket (43). In addition, one end of a second chain (444) is fitted on the rear part of the frame and winds around the movable sprocket (441) and the sprocket (44), and the other end links to a spring (443) linked to the front part of the frame.
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Inventors:
SAKAUE HIROYUKI (JP)
Application Number:
PCT/JP2009/065763
Publication Date:
March 18, 2010
Filing Date:
September 09, 2009
Export Citation:
Assignee:
SOCEADTH CO LTD (JP)
SAKAUE HIROYUKI (JP)
SAKAUE HIROYUKI (JP)
International Classes:
B62K19/32; B62K5/02; B62K5/05; B62K5/08; B62M1/24; B62M1/28
Foreign References:
| JP2002521263A | 2002-07-16 | |||
| JPS5270075U | 1977-05-25 | |||
| JPH07228284A | 1995-08-29 | |||
| JP2000053056A | 2000-02-22 |
Attorney, Agent or Firm:
ARC PATENT ATTORNEYS' OFFICE (JP)
Patent business corporation ARC PATENT ATTORNEYS' OFFICE (JP)
Patent business corporation ARC PATENT ATTORNEYS' OFFICE (JP)
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