TURN LIMIT DEVICE AND WHEELCHAIR

WIPO Patent Application WO/2007/052791

A1

A turn limit device with which a wheelchair occupant can easily switch over between a state where the turn of the wheelchair is limited and a state where the turn is possible. A wheelchair (1) having a turn limit device (40) attached to a frame (10), where the turn limit device (40) is capable of switching between a turnable state where auxiliary universal wheels (30) are made to land on the ground and a turn-limited state where the auxiliary universal wheels (30) are not made to land on the ground. The turn limit device (40) has a bracket, auxiliary wheels (43) vertically movably supported at the bracket, a switchover drive section capable of switching the auxiliary wheels (43) between an upper position and a lower position, and an operation section. The direction of the axis of shaft of each auxiliary wheel (43) is fixed relative to the bracket. At the upper position, the switchover drive section holds the auxiliary wheels (43) at a height at which they are not on the ground, and holds the auxiliary universal wheels (30) in the turnable state where the wheels are on the ground. Further, at the lower position, the switchover drive section holds the auxiliary wheels (43) at the position where they are on the ground and holds the auxiliary universal wheels (30) in the turn-limited state where the auxiliary universal wheels are not on the ground.

KURIYANO KAORU (JP)

PCT/JP2006/322099

May 10, 2007

November 06, 2006

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SEIWA KOGYO CO LTD (JP)
KURIYANO KAORU (JP)

A61G5/02; B60B33/02; B60B33/06

JPH1043245A	1998-02-17
JPH059532U	1993-02-09
JP2003126174A	2003-05-07
JP2005111063A	2005-04-28

AKIYAMA, Atsushi et al. (5-1 Toranomon 3-chom, Minato-ku Tokyo 01, JP)

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