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US 7,246,821 B2Granted
Wheelchair
AssigneeMiki Corporation
InventorHisayoshi Sato
Life of this patent
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AssigneeMiki Corporation
InventorHisayoshi Sato
Estimating the term…
A wheelchair has a width that can be adjusted. The wheelchair has a pair of side frames connected to each other by one or more X-frame(s) (11). The X-frame (11) has a pair of rotatable arms connected rotatably to each other at their respective centers, the lower ends of each rotatable arm being fixed to the side frame, and the fixing position of each rotatable arm to the side frame is vertically adjustable. In the wheelchair (1), when the rotatable arm(s)(11A,HA) of the X-frames(s)(11) rotate around the centers C of the rotatable arms (s)(11A,11A), the width between the side frames (3,3) can be adjusted. When the rotatable arm(s) (11A,11A) are respectively rotated, the height of the X-frame(s) (11) is changed. However, since the lower part(s) of the X-frame(s) (11) is(are) fixed to the left and right side frames (3,3), and are vertically adjustable, the left and right side frames (3,3) can be connected by the X-frames(s) (11) to correspond to the change of the height of the X-frame(s) (11).
A wheelchair having a pair of side frames connected to each other by one or more X-frame(s) wherein said X-frame consists of a pair of rotatable arms connected rotatably to each other at their respective centers, the lower ends of each rotatable arm being fixed to said side frames, the position at which each rotatable arm can be fixed to said side frame, being vertically adjustable to adjust the width of said wheelchair.
Dependencies are inferred from the claim text.