Invention Grant
- Patent Title: Wheelchair with two independent driving arms
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Application No.: US16279238Application Date: 2019-02-19
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Publication No.: US11033444B2Publication Date: 2021-06-15
- Inventor: László Mórucz , Zoltán Kálazi
- Applicant: László Mórucz , Stringbike Kft.
- Applicant Address: HU Siófok; HU Felsőzsolca
- Assignee: László Mórucz,Stringbike Kft.
- Current Assignee: László Mórucz,Stringbike Kft.
- Current Assignee Address: HU Siófok; HU Felsőzsolca
- Agency: Handal and Morofsky, LLC
- Agent Anthony H. Handal
- Main IPC: A61G5/02
- IPC: A61G5/02 ; A61G5/10

Abstract:
Wheelchair with two independent driving arms fixed to the frame by pivot bearings at a low position. The driving arms extend to a sufficient height for the user to hold their upper portions and to move them in forward-backward directions around the pivotal bearings. Ropes are connected to the lower sections of the driving arms. Two large wheels have wheel hubs equipped with freewheel, and each wheel hub have a rope drums attached with a spring bias, and a winding made of rope. Pulling a the rope in forward direction results in turning the wheel hub in forward direction, and when the rope drum (31, 31′) is turned in the other direction the freewheel releases the connection towards the large wheel. The wheel hub comprises a release mechanism that releases the freewheel when the large wheel is moved in backward direction and backward movement gets allowed.
Public/Granted literature
- US20200261289A1 Wheelchair with two independent driving arms Public/Granted day:2020-08-20
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