Wheelchair armrest adjusting mechanism

Details Wheelchair armrest adjusting mechanism Wheelchair armrest adjusting mechanism

2009-03-02

2011-11-29

Dunn, David (Department: 3636)

Chairs and seats

Armrest

Adjustable to multiple use positions relative to bottom or back

C297S411360, C297S411370

Reexamination Certificate

active

08066332

ABSTRACT:
The present invention provides a wheelchair armrest adjusting mechanism comprising a support unit having a horizontal support connected to a top of an upright support, and a plurality of locking units located one side of the horizontal support; wherein an armrest has a slide channel for engaging with the horizontal support, a stop hole for creating a passage to the slide channel in order to fit one of the locking units when the stop hole is aligned with the locking unit, and a control unit fitted in the stop hole for pushing against the locking unit. When the control unit is pushed and held, the armrest can be slid along the horizontal support to align with one of locking units; and when the control unit is released, the locking unit is pushed into the stop hole and thereby locks the armrest in place.

REFERENCES:
patent: 5876097 (1999-03-01), Cao
patent: 5884976 (1999-03-01), Breen et al.
patent: 6296313 (2001-10-01), Wu
patent: 6409266 (2002-06-01), Chen
patent: 6948775 (2005-09-01), Tsai
patent: 7216840 (2007-05-01), Fang
patent: 7387341 (2008-06-01), Tsai

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