U.S. patent application number 14/217897 was filed with the patent office on 2014-09-25 for barbell.
This patent application is currently assigned to Grace Premier Fitness and Wellness Products, Inc.. The applicant listed for this patent is Ace Specialty Manufacturing Company, Inc., Grace Premier Fitness and Wellness Products, Inc.. Invention is credited to Karl Anderson, Thomas W. Grace.
Application Number | 20140287889 14/217897 |
Document ID | / |
Family ID | 51569556 |
Filed Date | 2014-09-25 |
United States Patent
Application |
20140287889 |
Kind Code |
A1 |
Grace; Thomas W. ; et
al. |
September 25, 2014 |
Barbell
Abstract
A bar bell comprises a plate-accepting bar that extends
longitudinally between two end regions at which weight plates can
be mounted, a longitudinally-extending handle positioned above the
plate-accepting bar and supported by the barbell, a pair of
barbell-supporting brackets positioned at respective end regions of
the plate-accepting bar to stably support the barbell on a
supporting surface without contact between mounted weight plates
and the supporting surface, and at least one
longitudinally-extending fulcrum bar affixed to the barbell in such
a way that it is positioned to contact a user's forearm during a
bicep curl and create a lever arm vis-a-vis the handle that
maintains the barbell's center of gravity in a lagging position
with respect to the user's hands so as to exert enhanced resistance
to the curling movement during the movement.
Inventors: |
Grace; Thomas W.;
(Vancouver, WA) ; Anderson; Karl; (Glendora,
CA) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
Grace Premier Fitness and Wellness Products, Inc.
Ace Specialty Manufacturing Company, Inc. |
Vancouver
Rosemead |
WA
CA |
US
US |
|
|
Assignee: |
Grace Premier Fitness and Wellness
Products, Inc.
Vancouver
WA
Ace Specialty Manufacturing Company, Inc.
Rosemead
CA
|
Family ID: |
51569556 |
Appl. No.: |
14/217897 |
Filed: |
March 18, 2014 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
|
|
61803328 |
Mar 19, 2013 |
|
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|
Current U.S.
Class: |
482/106 |
Current CPC
Class: |
A63B 2225/09 20130101;
A63B 71/0036 20130101; A63B 21/0728 20130101; A63B 21/0724
20130101; A63B 21/4035 20151001; A63B 21/0783 20151001 |
Class at
Publication: |
482/106 |
International
Class: |
A63B 21/072 20060101
A63B021/072 |
Claims
1. A barbell comprising: a plate-accepting bar that extends
longitudinally between two end regions at which weight plates can
be mounted, a longitudinally-extending handle positioned above the
plate-accepting bar and supported by the barbell, a pair of
barbell-supporting brackets positioned at respective end regions of
the plate-accepting bar to stably support the barbell on a
supporting surface without contact between mounted weight plates
and the supporting surface, and at least one
longitudinally-extending fulcrum bar affixed to the barbell in such
a way that it is positioned to contact a user's forearm during a
bicep curl and create a lever arm vis-a-vis the handle that
maintains the barbell's center of gravity in a lagging position
with respect to the user's hands so as to exert enhanced resistance
to the curling movement during the movement.
2. The barbell of claim 1 wherein the brackets each include a
through hole permitting passage of the plate-accepting bar 11
therethrough so that weight plates can be mounted about the
portions of the plate-accepting bar lying longitudinally outward of
the brackets.
3. The barbell of claim 2 wherein the bar is welded to the
brackets.
4. The barbell of claim 1 wherein the brackets each have a lower
relatively wide portion against which weight plates can be mounted,
and an upper stem portion to which a respective end of the handle
is coupled.
5. The barbell of claim 4 wherein the handle comprises a bar that
extends longitudinally between the brackets, and a grippable
surface supported for rotation about said bar.
Description
FIELD OF THE INVENTION
[0001] This invention pertains to exercise apparatus of the type
employing movable weight plates. Examples of such devices are
barbells and dumbbells.
[0002] There are two fundamental types of dumbbells and barbells:
the "fixed weight" type, wherein the weight plates are permanently
secured on the ends of a bar, and the "adjustable" type, wherein
weight plates are secured on the bar by removable collars that
permit the user to add or remove individual weight plates to the
bar.
SUMMARY
[0003] An improved barbell for bicep curl movements is described
herein that remains stationary when set on the floor or other
support surface, provides convenient mounting and dismounting of
weight plates, and provides less back stress as it is grasped.
[0004] Briefly, the bar bell comprises a plate-accepting bar that
extends longitudinally between two end regions at which weight
plates can be mounted, a longitudinally-extending handle positioned
above the plate-accepting bar and supported by the barbell, a pair
of barbell-supporting brackets positioned at respective end regions
of the plate-accepting bar to stably support the barbell on a
supporting surface without contact between mounted weight plates
and the supporting surface, and at least one
longitudinally-extending fulcrum bar affixed to the barbell in such
a way that it is positioned to contact a user's forearm during a
bicep curl and create a lever arm vis-a-vis the handle that
maintains the barbell's center of gravity in a lagging position
with respect to the user's hands so as to exert enhanced resistance
to the curling movement during the movement.
[0005] These and other details concerning the invention will be
apparent from the following description of the preferred
embodiment, of which the drawings form a part.
DESCRIPTION OF THE DRAWINGS
[0006] In the preferred embodiment,
[0007] FIG. 1 is a front elevation view of a preferred barbell
constructed in accordance with the invention;
[0008] FIG. 2 is a right side elevation view of a dumbbell
constructed in accordance with the invention, with the weight
plates removed; and
[0009] FIG. 3 is a right side elevation view showing a user
grasping the barbell in its resting position; and
[0010] FIG. 4 is an oblique front view showing a user performing a
bicep curl with the barbell.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
[0011] Referring to FIGS. 1-2, a barbell 10 comprises a
plate-accepting bar 11 that extends longitudinally between two end
regions at which weight plates 14 can be mounted. A
longitudinally-extending handle 16 positioned above the
plate-accepting bar 11 is supported by the barbell, namely (in the
preferred embodiment) by a pair of barbell-supporting L-shaped
brackets 12 positioned at respective end regions of the
plate-accepting bar.
[0012] The brackets 12 stably support the barbell on a supporting
surface (typically, a floor) via respective leg portions 12a formed
by the base of the "L". The preferred brackets 12 accordingly
include a through hole which permits passage of the plate-accepting
bar 11 therethrough. The bar 11 is welded or otherwise securely
affixed to the bracket.
[0013] As illustrated in FIG. 1, the bar 11 is supported above the
support surface (i.e., the floor) at a height sufficient to enable
the weight plates to be clear of the supporting surface. This
permits easy mounting and dismounting of the weight plates, a
particularly important feature when Olympic plates or standard
plates of substantial poundage are being used. The brackets also
preclude the barbell from rolling, as barbells with round plates
can do when the supporting surface is not perfectly horizontal.
[0014] As best illustrated in FIG. 3, the position of the
longitudinally-extending handle 16 above the plate-accepting bar 11
presents the handle to the user at a height that decreases the
degree to which the user must bend in order to grasp the handle.
Compared with conventional barbells whose plate-accepting bar also
provides the handle grasped by the user, the decrease is equal to
the height the plate-accepting bar is raised from the floor by the
brackets 12 plus the height above the plate-accepting bar at which
the handle 16 is positioned. The raised position of the handle
vis-a-vis a conventional barbell means that less stress is placed
on the user's back and legs in grasping and lifting the barbell
because the user need not stoop as low.
[0015] The barbell 10 includes at least one
longitudinally-extending fulcrum bar 18 (and preferably a pair of
such bars) affixed to the barbell in such a way that it is
positioned to contact a user's forearm during a bicep curl and
create a lever arm vis-a-vis the handle that maintains the
barbell's center of gravity in a lagging position with respect to
the user's hands so as to exert enhanced resistance to the curling
movement during the movement. Turning to FIG. 4, the function of
the leverage bar is seen as the user approaches the upper region of
a bicep curl. Pads, mounted about the fulcrum bar 18 for safety and
comfort of the user, have contacted the user's outer forearms,
forming a first moment arm whereby the curling force applied by the
user to the handle acts against the first moment arm created by the
radial distance between the user's contact with the handle and
user's contact with the fulcrum bar, while the effective resistance
to the user's effort is a vertically downward force vector acting
on a second moment arm that is a function of the radial distance
between the longitudinal axis of the plate-accepting bar 11 and the
user's contact point with the fulcrum bar 18.
[0016] As best illustrated in FIG. 2, each bracket 12 has a lower
relatively wide portion 12a against which the weight plates are
mounted, and an upper stem portion 12b which provides the height
for mounting the handle 16 to the bracket. The handle 16 is
preferably mounted about a bar that extends longitudinally between
and into the brackets 12, and is preferably supported about the bar
by bearing means such as those known in the art for smooth and
virtually friction-free rotation.
[0017] The bracket can be provided with means for adjusting the
height at which the plate-accepting bar is positioned, thereby
controlling the length of the second moment arm and, consequently,
the counter-torque to be provided by the weight of the barbell. In
addition, and as best appreciated by reference to FIGS. 1 and 2,
the height at which the plate-accepting bar 11 is supported limits
the diameter, and therefore the weight, of weight plates that can
be accepted by the barbell. Since the number of weight plates
mountable on the bar 11 is limited by the length of the bar 11
protruding outward from the bracket 12, limiting or adjusting the
diameter of the accommodated plates limits the weight that a user
can curl. This provides a safety feature attractive to
liability-conscious gym owners and training professionals,
especially in gyms where inexperienced users might overextend and
injure themselves.
[0018] Similarly, the amount of effort needed to curl a given
weight is a function of the aforedescribed first moment arm.
Accordingly, the height of the lifting bar 16 can be fixed at a
desired height, or the barbell can be configured to provide a
height-adjustment mechanism that changes length of the second
moment arm and the consequential curling effort needed. In the
illustrated embodiment, the height of the lifting bar 16 is fixed
by coupling the bar 16 between opposite stem portions 12b that are
integral parts of the brackets 12. While currently preferred, other
bracket shapes and added adjustment mechanisms are within the scope
of this invention.
[0019] Although a currently preferred embodiment of the present
invention and its advantages have been described in detail above,
it should be understood that various details, changes,
substitutions and alterations will be apparent to those of ordinary
skill in the art having the benefit of the foregoing specification.
It is intended that all such variations be within the scope and
spirit of the invention, and that the invention be solely defined
by the appended claims, which are to be given the broadest
allowable interpretation consistent with the Doctrine of
Equivalents.
* * * * *