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US 12,145,016 B2Granted
Adjustable resistance exercise machine
AssigneeLagree Technologies, Inc.
InventorsSebastien Anthony Louis Lagree, Samuel D. Cox, Todd G. Remund, Max Wunderlich
Life of this patent
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Abstract
An adjustable resistance exercise machine for providing variable resistance forces on a pull cable extending from the machine. The adjustable resistance exercise machine generally includes a plurality of power springs that may be selectively engaged using an adjustment mechanism. By engaging springs with different forces, the resistance may be adjusted incrementally as preferred for performing different exercises. The adjustable resistance exercise machine may be connected to various structures, either below or above an exerciser, to allow the exerciser to choose whether to pull the pull cable up or down during exercise.
Claims20
An adjustable resistance exercise machine, comprising:
- a shaft having a first end and a second end;
- a pulley mounted on the shaft between the first end and the second end;
- an elongated member wound on the pulley, wherein pulling of the elongated member causes the pulley to rotate about the shaft;
- a first engagement member coupled to the pulley wherein rotation of the pulley also rotates the first engagement member;
- a first spiral spring that provides a first resistance to the rotation of the first engagement member, wherein the first spiral spring has a singular central hub that is central to the first spiral spring and that is positioned about the shaft;
- a second engagement member selectively engageable with or disengageable from the first engagement member, wherein when the second engagement member is engaged with the first engagement member the rotation of the pulley also rotates the second engagement member and wherein when the second engagement member is disengaged from the first engagement the second engagement member is stationary;
- and
- a second spiral spring that provides a second resistance to the rotation of the second engagement member, wherein the second spiral spring has a singular central hub that is central to the second spiral spring and that is positioned about the shaft.
5 more elements
An adjustable resistance exercise machine, comprising:
- a shaft having a first end and a second end;
- a pulley mounted on the shaft between the first end and the second end;
- an elongated member wound on the pulley, wherein pulling of the elongated member causes the pulley to rotate about the shaft;
- a first engagement member coupled to the pulley wherein rotation of the pulley also rotates the first engagement member;
- a first spiral spring that provides a first resistance to the rotation of the first engagement member, wherein the first spiral spring has a singular central hub that is central to the first spiral spring and that is positioned about the shaft;
- a second engagement member selectively engageable with or disengageable from the first engagement member, wherein when the second engagement member is engaged with the first engagement member the rotation of the pulley also rotates the second engagement member and wherein when the second engagement member is disengaged from the first engagement the second engagement member is stationary;
- a second spiral spring that provides a second resistance to the rotation of the second engagement member, wherein the second spiral spring has a singular central hub that is central to the second spiral spring and that is positioned about the shaft;
- and
- a bias spring positioned between the pulley and the second engagement member, wherein the bias spring applies a bias force to urge the second engagement member out of engagement with the first engagement member.
6 more elements
An adjustable resistance exercise machine, comprising:
- a shaft having a first end and a second end;
- a pulley mounted on the shaft between the first end and the second end;
- an elongated member wound on the pulley, wherein pulling of the elongated member causes the pulley to rotate about the shaft;
- a first engagement member coupled to the pulley wherein rotation of the pulley also rotates the first engagement member;
- a first spiral spring that provides a first resistance to the rotation of the first engagement member, wherein the first spiral spring has a singular central hub that is central to the first spiral spring and that is positioned about the shaft;
- a second engagement member selectively engageable with or disengageable from the first engagement member, wherein when the second engagement member is engaged with the first engagement member the rotation of the pulley also rotates the second engagement member and wherein when the second engagement member is disengaged from the first engagement the second engagement member is stationary;
- and
- a second spiral spring that provides a second resistance to the rotation of the second engagement member, wherein the second spiral spring has a singular central hub that is central to the second spiral spring and that is positioned about the shaft;
- wherein first spiral spring resists rotation with a first resistance force, and wherein the second spiral spring resists rotation with a second resistance force that is different from the first resistance force.
6 more elements
Dependencies are inferred from the claim text.