Wheelchair suspension having pivotal motor mount
First Claim
1. A wheelchair suspension comprising:
- a frame member;
a pivoting assembly having;
a pivot arm pivotally coupled to the frame and having a first engagement surface;
a drive assembly pivotally coupled to the frame and having a second engagement surface configured to engage the first engagement surface; and
wherein the second engagement surface is configured to disengage from the first engagement surface upon pivotal movement of the drive assembly in a first direction.
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Accused Products
Abstract
The present invention provides a suspension for a conveyance that is capable of traversing obstacles and rough terrain. In this regard, the suspension has a frame member and a pivoting assembly. The pivoting assembly has a pivot arm and a drive assembly. The pivot arm is pivotally coupled to the frame and has a first engagement surface. The drive assembly is pivotally coupled to the frame and has a second engagement surface configured to engage the first engagement surface. The second engagement surface is further configured to disengage from the first engagement surface upon pivotal movement of the drive assembly in a first direction and to re-engage the first engagement surface upon pivotal movement of the drive assembly in a second direction.
178 Citations
20 Claims
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1. A wheelchair suspension comprising:
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a frame member;
a pivoting assembly having;
a pivot arm pivotally coupled to the frame and having a first engagement surface;
a drive assembly pivotally coupled to the frame and having a second engagement surface configured to engage the first engagement surface; and
wherein the second engagement surface is configured to disengage from the first engagement surface upon pivotal movement of the drive assembly in a first direction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A wheelchair suspension comprising:
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a frame;
at least one pivot arm pivotally coupled to the frame and having a first engagement surface;
at least one drive assembly pivotally coupled to the frame and having a second engagement surface;
wherein the pivot arm and drive assembly are pivotally coupled to the frame at a common location on the frame; and
wherein the first and second engagement surfaces are configured to engage each other upon pivotal motion of the drive assembly in a first direction and to disengage from each other upon pivotal motion of the drive assembly in a second direction. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. A wheelchair suspension comprising:
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a frame having first and second sides;
first and second pivoting assemblies coupled to the first and second sides of the frame, each pivoting assembly comprising;
a pivot arm pivotally coupled to the frame and having a first engagement surface;
a drive assembly pivotally coupled to the frame and having a second engagement surface configured to engage the first engagement surface; and
wherein the second engagement surface is configured to disengage from the first engagement surface upon pivotal movement of the drive assembly in a first direction. - View Dependent Claims (19, 20)
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Specification