US 7,794,373 B2Granted

Adjustable dumbbell system

AssigneeNautilus, Inc.

InventorsDouglas A. Crawford, Patrick A. Warner, Eric D. Golesh, Edward L. Flick, Lopin Wang

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Abstract

A dumbbell is described including a handle having a grip and at least one end, an inner plate mounted on the handle adjacent the grip, in a fixed rotational orientation, a support plate rotationally mounted on the handle adjacent the inner plate, at least one collar rotationally mounted on the handle adjacent the support plate, and rotationally fixed with the support plate, a selector knob rotationally mounted on the handle adjacent the at least one collar, and rotationally fixed with the collar, a weight plate removably mounted on the handle adjacent the at least one collar, and a means for selectively securing the support plate to the inner plate to resist the rotation of the support plate, collar and selector knob with respect to the inner plate and handle.

Claims22

Dependent claims

A dumbbell base for an adjustable dumbbell selectively including at least one weight, the adjustable dumbbell further including a handle defining a longitudinal axis, a selector for selectively coupling the at least one weight to the handle by rotating the selector about the longitudinal axis, and a locking mechanism for restricting movement of the selector, the dumbbell base comprising:

a body defining at least one portion for receipt of the at least one weight;
and
a first member configured to selectively engage the adjustable dumbbell, wherein:
when the first member is engaged with the adjustable dumbbell, the adjustable dumbbell is coupled to the dumbbell base and a user is unable to readily remove the adjustable dumbbell from the dumbbell base;
when the first member is not engaged with the adjustable dumbbell, the adjustable dumbbell is not coupled to the dumbbell base and the user may readily remove the adjustable dumbbell from the dumbbell base;
and
the adjustable dumbbell is selectively engaged with, and disengaged from, the first member by rotating the selector about the longitudinal axis.

4 more elements

An adjustable dumbbell apparatus, comprising:

a dumbbell comprising:
a bar;
a selector for operably engaging and disengaging at least one weight with the bar by moving the selector relative to the bar, the selector comprising a plurality of engagement members;
each of the plurality of engagement members configured to selectively couple at least one of the at least one weight to the bar;
at least one of the plurality of engagement members defining an aperture;
at least a portion of the bar positioned within the aperture;
and
a locking mechanism operatively associated with the selector;
and
a base to receive the dumbbell and the at least one weight and including an actuator;
the locking mechanism preventing movement of the selector relative to the bar when the dumbbell is not received in the base;
the actuator releasing the locking mechanism when the dumbbell is received in the base, thus allowing the selector to move relative to the bar;
and
the locking mechanism comprising:
a first member mounted on the bar in a fixed rotational position relative to the bar;
a second member rotatably mounted on the bar and operatively associated with the selector;
and
a coupling device moveable between at least first and second positions for coupling and decoupling the first and second members and biased to the first position, wherein:
the first member is coupled to the second member when the coupling device is in the first position;
the first member is decoupled from the second member when the coupling device is in the second position;
movement of the selector relative to the bar is restricted when the first member is coupled to the second member;
movement of the selector relative to the bar is allowed when the first member is decoupled from the second member;
and
the actuator deactivates the locking mechanism by moving the coupling device from the first position to the second position when the dumbbell is received in the base.

21 more elements

Dependencies are inferred from the claim text.

Facts

Application: 12/579,122Filed 14 Oct 2009 · continuation
Priority: 7 Jun 2002
Published: US 2010/0035736 A111 Feb 2010
Granted: 14 Sep 2010
Term ends: Not estimatedThe source records don’t support an estimate.

Classification7 codes

A63B 21/0728
Dumb-bells, bar-bells or the like , e.g. weight discs having an integral peripheral handle: with means for fixing weights on bars, i.e. fixing…
A63B 21/0607
Special physical structures of used masses: plastic masses, e.g. elastomers; Masses provided with plastic coverings
A63B 21/075
Dumb-bells, bar-bells or the like , e.g. weight discs having an integral peripheral handle: with variable weights , e.g. weight systems with…
A63B 71/0054
Games or sports accessories not covered in groups A63B1/00 - A63B69/00: features for injury prevention on an apparatus, e.g. shock absorbers

Family

Application60/387,298Us provisional application · filed 7 Jun 2002
Application60/400,244Us provisional application · filed 31 Jul 2002
Application60/400,894Us provisional application · filed 1 Aug 2002
Application10/456,977Parent of this continuation · filed 5 Jun 2003
Application11/844,565Parent of this continuation · filed 24 Aug 2007
US 2010/0035736 A1Pre-grant publication · published 11 Feb 2010
US 7,614,982 B2Parent of this continuation
US 7,261,678 B2Parent of this continuation
US 2004/0005968 A1Published application
US 2008/0039299 A1Published application
US 7,794,373 B2This patent

From the US filing history. Foreign family members aren’t listed.