Weight lifting system with internal cam mechanism
First Claim
1. A weight lifting system configured to enable convenient coupling of weights to a handle, the weight lifting system comprising:
- a handle having first and second opposing ends, the opposing ends having a hollow interior;
a plurality of weight plates, each weight plate having an aperture therethrough; and
first and second locking mechanisms configured to selectively couple the weight plates to the respective opposing ends of the handle, at least one of the first and second locking mechanisms comprising;
(i) a moveable member that selectively engages an interior surface of the handle, and (ii) a push rod selectively contacting different portions of the moveable member such that movement of the push rod selectively positions the moveable member into a locked position, wherein a portion of the at least one of the first and second locking mechanisms is selectively inserted into an end of the handle.
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Accused Products
Abstract
A weight lifting system includes: (i) a handle; (ii) a plurality of weights; and (iii) first and second locking mechanisms that couple a respective weight to the handle. The locking mechanisms each include a cam assembly that selectively engages threads on an interior surface of the handle. The cam assembly includes (i) a threaded cam rotatably coupled to a sleeve that extends into the handle; and (ii) a push rod configured to selectively move the cam between a locked position and an unlocked position within the handle. Twisting the cam in one direction tightens the threads of the cam against the threads of the handle. Twisting the cam in an opposing direction threads the locking mechanism out of the handle.
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Citations
24 Claims
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1. A weight lifting system configured to enable convenient coupling of weights to a handle, the weight lifting system comprising:
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a handle having first and second opposing ends, the opposing ends having a hollow interior; a plurality of weight plates, each weight plate having an aperture therethrough; and first and second locking mechanisms configured to selectively couple the weight plates to the respective opposing ends of the handle, at least one of the first and second locking mechanisms comprising;
(i) a moveable member that selectively engages an interior surface of the handle, and (ii) a push rod selectively contacting different portions of the moveable member such that movement of the push rod selectively positions the moveable member into a locked position, wherein a portion of the at least one of the first and second locking mechanisms is selectively inserted into an end of the handle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A weight lifting system configured for selective coupling of weight plates to a handle and for convenient disengagement of the weight plates from the handle, the weight lifting system comprising:
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a handle having hollow interior surfaces on opposing ends thereof; a plurality of weight plates, each weight plate having an aperture therethrough; and first and second opposing locking mechanisms each having a portion configured to extend through at least one of said plurality of weight plates, wherein said portion is selectively inserted into the interior of the handle, wherein at least one locking mechanism comprises;
(i) a moveable member configured to selectively engage the interior surface of an end of the handle, (ii) a rod configured to selectively rotate the moveable member, and (iii) a biasing member configured to bias the rod with respect to the moveable member. - View Dependent Claims (10, 11, 12, 13)
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14. A weight lifting system comprising:
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a handle; a plurality of weights; and first and second locking mechanisms that couple a respective weight to the handle, at least one of the locking mechanisms comprising;
(i) a moveable threaded member that selectively engages an interior surface of the handle, and (ii) a rod configured to selectively move the moveable threaded member with respect to the interior surface of the handle and with respect to the rod. - View Dependent Claims (15, 16)
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17. A weight lifting system comprising:
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a handle; a plurality of weights; and first and second locking mechanisms that couple a respective weight to opposing ends of the handle, the locking mechanisms each including;
(i) a rotating member that selectively engages an interior surface of the handle, and (ii) a push rod selectively contacting different portions of the rotating member such that movement of the push rod selectively positions the rotating member into a locked position, wherein a portion of each of the first and second locking mechanisms is selectively inserted into an end of the handle. - View Dependent Claims (18, 19, 20)
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21. A weight lifting system comprising:
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a handle; a plurality of weights; and first and second locking mechanisms that couple a respective weight to the handle, at least one of the locking mechanisms comprising a cam assembly that selectively engages an interior surface of the handle, wherein the at least one cam assembly comprises (i) a member that rotates from a non-engaged position to an engaged position; and
(ii) a rod configured to move in a linear direction in order to cause the member to rotate from the non-engaged position to the engaged position, wherein a portion of each of the first and second locking mechanisms is selectively inserted into an end of the handle. - View Dependent Claims (22, 23)
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24. A weight lifting system comprising:
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a handle having a grip configured to be grasped by a user; a plurality of weights, each of the weights having an aperture therethrough; and first and second locking mechanisms that couple a respective weight to an opposing end of the handle, each of the locking mechanisms including a cam assembly, the cam assembly comprising (i) a threaded moveable member that selectively engages an interior surface of the handle, and (ii) a push rod configured to selectively contact different portions of the moveable member, such that movement of the push rod selectively positions the moveable member into a locked position or an unlocked position.
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Specification