Invention Grant
- Patent Title: Obstacle traversing wheelchair
- Patent Title (中): 障碍物穿过轮椅
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Application No.: US14162955Application Date: 2014-01-24
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Publication No.: US09149398B2Publication Date: 2015-10-06
- Inventor: Gerold Goertzen , William A. Null
- Applicant: Invacare Corporation
- Applicant Address: US OH Elyria
- Assignee: Invacare Corporation
- Current Assignee: Invacare Corporation
- Current Assignee Address: US OH Elyria
- Agency: Calfee, Halter & Griswold LLP
- Main IPC: A61G5/06
- IPC: A61G5/06 ; A61G5/04 ; B60G17/033 ; A61G5/10 ; A61G5/12

Abstract:
A wheelchair suspension is provided. The wheelchair suspension includes a frame, a front caster pivot arm, a drive assembly, and a rear caster. The front caster pivot arm is pivotally connected to the frame. The front caster is coupled to a front end of the front caster pivot arm. The drive assembly is pivotally connected to the front caster pivot arm. The drive assembly comprises a drive wheel and a motor that drives the drive wheel. Torquing of the drive wheel by the motor in a forward direction causes the drive assembly to pivot with respect to the front caster pivot arm such that the drive wheel moves forward toward the front caster and a distance between a support surface and the connection between of the drive assembly and the front caster pivot arm increases.
Public/Granted literature
- US20140138170A1 OBSTACLE TRAVERSING WHEELCHAIR Public/Granted day:2014-05-22
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