Arm assembly for exercise devices
First Claim
1. An exercise device comprising:
- a frame;
a drive shaft rotatably coupled to the frame for relative movement therewith;
a first arm and a second arm supported on the drive shaft and selectively engageable therewith;
a guide supported on the frame and defining an arm path; and
an adjustment mechanism that selectively engages and disengages the first and second arms with the drive shaft and selectively engages and disengages the guide with the frame, wherein the adjustment mechanism operates to disengage the first and second arms from the drive shaft when the first and second arms move from a first initial position to a second initial position and thereafter engages the first and second arms to the drive shaft for movement of the first and second arms along the arm path.
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Accused Products
Abstract
Aspects of the present invention involve an exercise device with an arm assembly that provides linear, converging, and/or diverging hand grip motions during use and also has an adjustable starting position. The arm assemblies described and depicted herein include arm members that are pivotally coupled with a frame of an exercise device. During exercise, the arm members engage an arcuate surface defining the arm path. The arcuate surfaces which guide the converging and/or diverging hand grip motions as the arms pivot relative to the frame. Some embodiments of the present invention include a releasable locking mechanism that allows a user to pivot the arm members to a desired starting position without altering the relative positions of the hand grips.
113 Citations
20 Claims
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1. An exercise device comprising:
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a frame; a drive shaft rotatably coupled to the frame for relative movement therewith; a first arm and a second arm supported on the drive shaft and selectively engageable therewith; a guide supported on the frame and defining an arm path; and an adjustment mechanism that selectively engages and disengages the first and second arms with the drive shaft and selectively engages and disengages the guide with the frame, wherein the adjustment mechanism operates to disengage the first and second arms from the drive shaft when the first and second arms move from a first initial position to a second initial position and thereafter engages the first and second arms to the drive shaft for movement of the first and second arms along the arm path. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An exercise device comprising:
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a frame, a drive shaft coupled to the frame for relative movement thereto, a first arm and a second arm coupled to the shaft for selective engagement therewith, a guide that constrains movement of the first and second arms along respective guide paths, and a locking mechanism including a first transmission element to selectively engage and disengage the first and second arms with the drive shaft and a second transmission element to selectively engage and disengage the guide with the frame, wherein movement of the first and second arms from a first initial position to a second initial position when the first and second transmission elements are disengaged moves the arms relative to the drive shaft without operable engagement with the drive shaft and without substantial relative movement of the first and second arms along the guide paths. - View Dependent Claims (10, 11, 12, 13)
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14. An adjustment mechanism for an exercise machine, comprising:
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a shaft coupled to a frame; an arm mechanism, including two lever arms, selectively coupled to the shaft by a first coupler; a guide mechanism that restricts movement of the lever arms along a predetermined path, the guide mechanism selectively coupled to at least one of the frame or arm mechanism by a second coupler; and a first configuration of the first and second couplers wherein a force applied to the lever arms moves the lever arms along the path and moves the shaft, and a second configuration of the first and second couplers wherein a force moves the arm mechanism and the guide mechanism without moving the shaft thereby adjusting the lever arms from a first initial position to a second initial position. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification