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Suspension for wheeled vehicles

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) A61G-005/00    A61G-005/04    A61G-005/10    A61G-005/06    B60G-007/00    B60G-015/08    B60G-017/048    B60G-017/056   
출원번호 US-0486766 (2014-09-15)
등록번호 US-9364377 (2016-06-14)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Calfee, Halter & Griswold LLP
인용정보 피인용 횟수 : 1  인용 특허 : 257
초록

A wheelchair suspension comprises a frame, at least one pivot arm, at least one front caster, at least one rear caster, a stabilizing system, and a sensor. The pivot arm is coupled to the frame. The front caster is coupled to the pivot arm. The rear caster is coupled to the frame. The stabilizing system is coupled to the frame and the pivot arm. The sensor is arranged such that tipping of the frame causes actuation of the stabilizing system to at least partially resist further movement of the frame.

대표
청구항
▼

1. A method of stabilizing a wheelchair frame comprising: actuating a stabilizing system valve upon relative upward movement of the wheelchair frame with respect to a rear caster;wherein actuation of the stabilizing system valve causes a fluid spring to at least partially resist tipping to the frame by at least partially resisting movement of a front caster relative to the frame. 2. The method of claim 1 wherein actuating the stabilizing system valve at least partially resists upward and downward movement of the front caster relative to the frame. 3. The...

이 특허에 인용된 특허 (257)

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  1. Mulhern, James P.; Antonishak, Stephen J.. Elevated height wheelchair. USP20181110130532.

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