Structure, components and method for constructing and operating an automatically self locking manually propelled vehicle such as a wheel chair
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United States of America Patent
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Jan 7, 2014
Grant Date -
Sep 9, 2010
app pub date -
Mar 3, 2010
filing date -
Mar 3, 2009
priority date (Note) -
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Abstract
Several new and useful concepts for a manually propelled vehicle such as a wheel chair are provided. In one concept, the vehicle is configured to be selectively placed in an automatic lock condition in which (i) the wheel chair can move in a conventional manner while an occupant is seated in the wheel chair, and (ii) the wheel chair is automatically locked against movement when an occupant begins to rise from a seated position on the wheel chair. In another concept, a particularly secure structure is provided for locking the wheel of the wheel chair against movement. In yet another concept, important components of the wheel chair are formed in a manner that facilitates assembly of those components into the wheel chair, by an internal fastening system and in a modular fashion.
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