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Invacare International Sarl

Invacare International Gmbh

Küschall, Rainer

Rainer Küschall

Simon Brenner

Erich Glanzmann

Thomas Kohler

Bernard Nicolas

A clamping device for fixing a wheelchair drive unit to a wheelchair frame, the clamping device comprising a lever, a first clamping jaw, a second clamping jaw, which are movably mounted on a clamping jaw holder via a jaw path between an open position and a closed position. The lever is movably coupled to the first clamping jaw and the second clamping jaw via a lever path such that a movement of the lever along the lever path causes the clamping jaws to move along the jaw path. A transmission arrangement couples the lever to the first clamping jaw and the second clamping jaw in such a way that, moving the lever by half the lever path causes the first clamping jaw and the second clamping jaw to move by more than half the jaw path in the direction of the closed position of the clamping jaws.

Clamping device

A drive device for a wheelchair includes a control element, a chassis and a support frame. A fixing arrangement is mounted on the support frame and can be fixed to a wheelchair frame of the wheelchair. The fixing arrangement is designed such that it can be automatically connected to and released from the wheelchair frame of the wheelchair by a fixing drive.

Drive device for a wheelchair

A folding wheelchair is disclosed having a frame with two side portions, a seat and a folding mechanism. The folding mechanism has coupling connections, pivoting connections and a cross-strut with two bars crossing at a pivot point. First ends of each of the cross-strut bars are mounted rotatably on the side portions of the frame via the pivoting connections. Second ends of each of the cross-strut bars are releasably mounted on the other of the two side portions of the frame via the coupling connections. A distance between the frame side portions may be modified if the cross-strut bars second ends are released from the frame side portions. The cross-strut bars are pivoted relative to each other about the pivot point. The cross-strut extends from the first ends to the second ends of the bars in a cross-strut direction which, in the operating position, extends substantially along the seat.

Folding wheelchair

A wheelchair () comprising:&#x2014;a seat module () including a seat frame () supporting a seat ();&#x2014;a backrest module () including a backrest frame () connected to said seat frame () and supporting a backrest ();&#x2014;a front frame module () including a front frame (), said front frame () including left and right bended legs () removably connected at their upper end to said seat frame () and at their lower end to a footrest (), said bended legs () being supported by caster wheel assemblies () via caster support ();&#x2014;a rear wheel module () including left and right rear wheels () pivotally connected to an axle (), said rear wheel module () being removably connected to said seat module () through left and right connecting elements (); wherein said seat frame () consists in left and right longitudinal profiles () extending in the same plane.

Growing community of inventors

Allschwil, Switzerland

Rainer Küschall