Title:
VEHICLE WITH TWO PARALLEL WHEELS
Document Type and Number:
WIPO Patent Application WO/2008/026770
Kind Code:
A1
Abstract:
Conventional vehicles with two parallel wheels do not have step run-on assisting mechanisms
facilitating the vehicles to run on a step and enabling them to run onto a road surface
having steps. A vehicle with two parallel wheels according to the invention has
split steps (2L, 2R), a vehicle body, a pair of wheels (4L, 4R) coaxially parallelly
arranged, a pair of wheel drive units for independently driving the wheels (4L,
4R), and a pair of step run-on assisting mechanisms (8L, 8R) arranged corresponding
to the wheels (4L, 4R) and changing the degree of dependency of step run-on operation.
The step run-on assisting mechanisms (8L, 8R) each have an assisting rotation
member (15) having a circular arc support surface with a curvature radius greater
than the radius of the wheel (4L, 4R) and having its rotation center in front, in
the travel direction, of the rotation center of the wheel, a link member (16) rotatably
supporting the assisting rotation member (15), and a damper (25, 26) for changing,
according to the speed at which the assisting rotation member (15) collides with
a step, force supporting one end of the link member (16).
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Inventors:
KAKINUMA TAKEKAZU (JP)
YAMANO IKUO (JP)
KAWARASAKI YOSHIHIRO (JP)
YAMANO IKUO (JP)
KAWARASAKI YOSHIHIRO (JP)
Application Number:
PCT/JP2007/067252
Publication Date:
March 06, 2008
Filing Date:
August 29, 2007
Export Citation:
Assignee:
TOYOTA MOTOR CO LTD (JP)
KAKINUMA TAKEKAZU (JP)
YAMANO IKUO (JP)
KAWARASAKI YOSHIHIRO (JP)
KAKINUMA TAKEKAZU (JP)
YAMANO IKUO (JP)
KAWARASAKI YOSHIHIRO (JP)
International Classes:
B62K17/00; B60B19/00; B60B33/00; B62K3/00
Foreign References:
| JP2005006436A | 2005-01-06 | |||
| JP2001333940A | 2001-12-04 | |||
| JPS5373748A | 1978-06-30 | |||
| US2612379A | 1952-09-30 | |||
| US2427482A | 1947-09-16 | |||
| JPH0661504U | 1994-08-30 | |||
| JP2002002206A | 2002-01-08 | |||
| JP2005296606A | 2005-10-27 | |||
| JPH03105824A | 1991-05-02 |
Other References:
See also references of EP 2062808A4
Attorney, Agent or Firm:
IEIRI, Takeshi (Asahi Bldg. 10th Floor3-33-8, Tsuruya-cho, Kanagawa-ku,Yokohama-sh, Kanagawa 35, JP)
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