Exercise resistance apparatus
OwnerStephen P. Ihli, Mark A. Krullinventors
Life of this patent
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Abstract
An exercise apparatus includes a cable that is extracted from a housing when the extraction force is sufficient to rotate a drum that is rotatably mounted within the housing. A brake material is sandwiched between the drum and at least one tension band to provide adjustable resistance to rotation of the drum. A knob is rotated to adjust tension in the at least one tension band without affecting tension in the brake material. Indicia associated with rotation of the knob show changes in the resistance level as the knob rotates through more than one complete revolution relative to the housing.
Claims20
An exercise apparatus, comprising:
- a frame;
- a drum rotatably mounted on the frame for rotation about an axis, wherein the drum defines a circumferential perimeter;
- at least one tension band disposed about at least a portion of the perimeter of the drum;
- a braking strip disposed between the tension band and the drum, wherein a first end of the braking strip is secured to the drum, and an opposite, second end of the braking strip rests on the circumferential perimeter of the drum;
- a tension adjustment mechanism interconnected between said at least one tension band and the frame, and operable to adjust tension in said at least one tension band;
- and
- a force receiving member operatively connected to the drum, wherein movement of the force receiving member is linked to rotation of the drum.
An exercise apparatus, comprising:
- a frame, wherein the frame includes a bracket sandwiched between a front housing and a rear housing;
- a drum rotatably mounted on the frame for rotation about an axis, wherein the drum defines a circumferential perimeter between the bracket and the front housing;
- at least one tension band disposed about the perimeter of the drum;
- a tension adjustment mechanism interconnected between said at least one tension band and the bracket, and operable to adjust tension in said at least one tension band;
- and
- a force receiving member operatively connected to the drum, wherein movement of the force receiving member is linked to rotation of the drum.
An exercise apparatus, comprising:
- a frame;
- a drum rotatably mounted on the frame for rotation about an axis, wherein the drum defines a circumferential perimeter;
- at least one tension band disposed about at least a portion of the perimeter of the drum;
- a tension adjustment mechanism interconnected between said at least one tension band and the frame, and operable to adjust tension in said at least one tension band, wherein the tension adjustment mechanism includes a bolt rotatably mounted on the frame, and a first portion of the bolt is threaded with right hand threads, and a second portion of the bolt is threaded with left hand threads, and a first nut is threaded onto the first portion of the bolt, bears against a first flat surface on the frame, and is fastened to a first end of said at least one tension band, and a second nut is threaded onto the second portion of the bolt, bears against a second flat surface on the frame, and is fastened to a second end of said at least one tension band, whereby rotation of the bolt in a first direction causes the first nut and the second nut to move toward one another, thereby reducing tension in said at least one tension band, and rotation of the bolt in an opposite, second direction causes the first nut and the second nut to move away from one another, thereby increasing tension in said at least one tension band;
- and
- a force receiving member operatively connected to the drum, wherein movement of the force receiving member is linked to rotation of the drum.
Dependencies are inferred from the claim text.