US20030148862A1 - Adjustable dumbbell - Google Patents
Adjustable dumbbell Download PDFInfo
- Publication number
- US20030148862A1 US20030148862A1 US10/058,007 US5800702A US2003148862A1 US 20030148862 A1 US20030148862 A1 US 20030148862A1 US 5800702 A US5800702 A US 5800702A US 2003148862 A1 US2003148862 A1 US 2003148862A1
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- US
- United States
- Prior art keywords
- weights
- support bar
- bar unit
- insertion slots
- center
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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Classifications
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
- A63B21/06—User-manipulated weights
- A63B21/072—Dumb-bells, bar-bells or the like, e.g. weight discs having an integral peripheral handle
- A63B21/0728—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 olympic discs or bumper plates on bar-bells or dumb-bells
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
- A63B21/06—User-manipulated weights
- A63B21/062—User-manipulated weights including guide for vertical or non-vertical weights or array of weights to move against gravity forces
- A63B21/0626—User-manipulated weights including guide for vertical or non-vertical weights or array of weights to move against gravity forces with substantially vertical guiding means
- A63B21/0628—User-manipulated weights including guide for vertical or non-vertical weights or array of weights to move against gravity forces with substantially vertical guiding means for vertical array of weights
- A63B21/063—Weight selecting means
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
- A63B21/06—User-manipulated weights
- A63B21/072—Dumb-bells, bar-bells or the like, e.g. weight discs having an integral peripheral handle
- A63B21/0726—Dumb bells, i.e. with a central bar to be held by a single hand, and with weights at the ends
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
- A63B21/00058—Mechanical means for varying the resistance
- A63B21/00065—Mechanical means for varying the resistance by increasing or reducing the number of resistance units
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
- A63B21/06—User-manipulated weights
- A63B21/072—Dumb-bells, bar-bells or the like, e.g. weight discs having an integral peripheral handle
- A63B21/075—Dumb-bells, bar-bells or the like, e.g. weight discs having an integral peripheral handle with variable weights, e.g. weight systems with weight selecting means for bar-bells or dumb-bells
Definitions
- the present invention relates to a dumbbell and, more particularly, to an adjustable dumbbell.
- a conventional dumbbell is an integrated member having a particular gravity weight. For different exercising requirements, different dumbbells of different gravity weights shall be used. It is expensive to prepare a number of dumbbells of different gravity weights.
- adjustable dumbbells are developed.
- an adjustable dumbbell which comprises weight carrier means carrying a number of weights, and selector controlled to select weights for exercising.
- each weight comprises two heavy plate members disposed at two sides, and connecting rods connected between the heavy plate members. These weights are bulky. Before selection, the weights are arranged in stacks. When received in the weight carrier means, the weights are not stably kept in a good order for easy selection.
- the primary object of the present invention is to provide an adjustable dumbbell, which has a simple construction and a nice outer looking.
- the adjustable dumbbell comprises a weight carrier pan, the weight carrier pan having a predetermined number of insertion slots.
- a plurality of flat weights are received in the insertion slots of the weight carrier pan, each having a center through hole.
- a support bar unit has two bearing plates, a center sleeve connected between the bearing plates, and two suspension racks respectively fixedly fastened to the bearing plates at an outer side, each suspension racks having a predetermined number of insertion slots for the positioning of the weights respectively.
- a selector is installed in the support bar unit and has two rod members mounted in the center sleeve of the support bar unit, and an adjusting mechanism controlled to move the rod members axially out of two distal ends of the center sleeve into the center holes of the weights to selectively secure the weights to the support bar unit for exercising.
- FIG. 1 is a perspective view of an adjustable dumbbell constructed according to a first embodiment of the present invention.
- FIG. 2 is a sectional view taken along line 2 - 2 of FIG. 1.
- FIG. 3 is a perspective view of an adjustable dumbbell constructed according to a second embodiment of the present invention.
- FIG. 4 is a sectional view taken along line 4 - 4 of FIG. 3.
- an adjustable dumbbell 20 according to a first preferred embodiment of the present invention is shown comprised of a weight carrier pan 30 , weights 40 , a support bar unit 50 , and a selector 60 .
- the weight carrier pan 30 is a rectangular pan, comprising an upright peripheral wall 31 , a holding space 32 surrounded by the upright peripheral wall 31 , pairs of partition plates 34 symmetrically disposed at two sides in the holding space 32 , and insertion slots 33 defined in the holding space 32 at two sides and separated by the partition plates 34 for holding the weights 40 .
- the weights 40 are rectangular heavy plate members receivable in the insertion slots 33 of the weight carrier pan 30 , each having a center through hole 41 for mounting.
- the support bar unit 50 comprises two bearing plates 51 and 52 disposed in parallel, the bearing plates 51 and 52 each having a center through hole 511 or 521 , a center sleeve 53 inserted into the center through holes 511 and 521 of the bearing plates 51 and 52 and connected between the bearing plates 51 and 52 , the center sleeve 53 defining an axially extended through hole 54 and having a view window 531 , four bars 55 connected between the bearing plates 51 and 52 in four corners around the center sleeve 53 for the holding of the hand to exercise the adjustable dumbbell, two cap-like suspension racks 56 respectively fixedly fastened to the bearing plates 51 and 52 at an outer side with the respective opening facing downwards, the cap-like suspension racks 56 having a width corresponding to the width of the weights 40 and a height not greater than the height of the weights 40 , symmetrical pairs of partition plates 57 respectively fixedly provided in the cap-like suspension racks 56 , and a plurality of downward insertion slots 58 respectively defined in the cap
- the left bearing plate 51 has a view window 512 through which the user can visually check the number of weights 40 mounted on the support bar unit 50 .
- the right bearing plate 52 further comprises a blind hole 522 disposed on the inside, and a retaining device 59 mounted in the blind hole 522 .
- the retaining device 59 comprises a spring 591 mounted in the blind hole 522 , and a steel ball 592 supported on the spring 591 .
- the selector 60 comprises a coupling tube 61 mounted in the center sleeve 53 of the support bar unit 50 , a first nut 611 fixedly fastened to one end of the connecting tube 61 , the first nut 611 being externally threaded, a second nut 612 fixedly fastened to the other end of the coupling tube 61 , a left-handed screw rod 62 of semicircular cross section threaded into the second nut 612 and rotated in and out of one end of the axially extended through hole 54 of the center sleeve 53 , a right-handed screw rod 63 threaded into the first nut 611 , a control knob 64 mounted in the right bearing plate 52 and meshed with the externally threaded first nut 611 , a locking member 651 adapted to lock the control knob 64 , a slide switch 65 for controlling the locking member 651 to lock/unlock the control knob 64 , a display wheel 66 mounted in the left bearing plate 51 above the left-handed screw
- the right-handed screw rod 63 has numerical signs that can be viewed through the view window 531 in the center sleeve 53 .
- the first nut 611 is driven to rotate the coupling tube 61 , thereby causing the left-handed screw rod 62 and the right-handed screw rod 63 to be respectively rotated out of the bearing plates 51 and 52 and inserted into the center through holes 41 of the selected weights 40 , and at the same time the user can view the corresponding numerical sign on the right-handed screw rod 63 through the view window 531 and the corresponding numerical sign on the rack 661 through the view window 512 .
- the selected weights 40 are stably lifted with the left-handed screw rod 62 and the right-handed screw rod 63 from the weight carrier pan 30 for exercising.
- the other weights 40 are left in the holding space 32 of the weight carrier pan 30 , and kept in good order in the insertion slots 33 by the upright peripheral wall 31 and the partition plates 34 .
- FIGS. 3 and 4 show an adjustable dumbbell constructed according to a second preferred embodiment of the present invention.
- the suspension racks 85 are shaped like a substantially inverted U-shaped frame bar respectively fixedly fastened to the two bearing plates 81 and 82 of the support bar unit 80 of the adjustable dumbbell 70 at an outer side.
- Each suspension rack 85 has a plurality of partition plates 87 respectively inwardly extended from the two opposite side rods thereof, defining a predetermined number of insertion slots 88 adapted for receiving the weights 40 stably.
Abstract
An adjustable dumbbell is constructed to comprise a weight carrier pan, the weight carrier pan having a predetermined number of insertion slots. A plurality of flat weights are received in the insertion slots of the weight carrier pan, each having a center through hole. A support bar unit has two bearing plates, a center sleeve connected between the bearing plates, and two suspension racks respectively fixedly fastened to the bearing plates at an outer side, each suspension racks having a predetermined number of insertion slots for the positioning of the weights respectively. A selector is installed in the support bar unit and has two rod members mounted in the center sleeve of the support bar unit, and an adjusting mechanism controlled to move the rod members axially out of two distal ends of the center sleeve into the center holes of the weights to selectively secure the weights to the support bar unit for exercising.
Description
- The present invention relates to a dumbbell and, more particularly, to an adjustable dumbbell.
- A conventional dumbbell is an integrated member having a particular gravity weight. For different exercising requirements, different dumbbells of different gravity weights shall be used. It is expensive to prepare a number of dumbbells of different gravity weights. In order to eliminate this problem, adjustable dumbbells are developed. There is known an adjustable dumbbell, which comprises weight carrier means carrying a number of weights, and selector controlled to select weights for exercising. According to this design, each weight comprises two heavy plate members disposed at two sides, and connecting rods connected between the heavy plate members. These weights are bulky. Before selection, the weights are arranged in stacks. When received in the weight carrier means, the weights are not stably kept in a good order for easy selection.
- The primary object of the present invention is to provide an adjustable dumbbell, which has a simple construction and a nice outer looking.
- It is another object of the present invention to provide an adjustable dumbbell, which keeps weights positively in a good order for selection.
- To achieve the objects of the present invention, the adjustable dumbbell comprises a weight carrier pan, the weight carrier pan having a predetermined number of insertion slots. A plurality of flat weights are received in the insertion slots of the weight carrier pan, each having a center through hole. A support bar unit has two bearing plates, a center sleeve connected between the bearing plates, and two suspension racks respectively fixedly fastened to the bearing plates at an outer side, each suspension racks having a predetermined number of insertion slots for the positioning of the weights respectively. A selector is installed in the support bar unit and has two rod members mounted in the center sleeve of the support bar unit, and an adjusting mechanism controlled to move the rod members axially out of two distal ends of the center sleeve into the center holes of the weights to selectively secure the weights to the support bar unit for exercising.
- FIG. 1 is a perspective view of an adjustable dumbbell constructed according to a first embodiment of the present invention.
- FIG. 2 is a sectional view taken along line2-2 of FIG. 1.
- FIG. 3 is a perspective view of an adjustable dumbbell constructed according to a second embodiment of the present invention.
- FIG. 4 is a sectional view taken along line4-4 of FIG. 3.
- Referring to FIGS. 1 and 2, an
adjustable dumbbell 20 according to a first preferred embodiment of the present invention is shown comprised of aweight carrier pan 30,weights 40, asupport bar unit 50, and a selector 60. - The
weight carrier pan 30 is a rectangular pan, comprising an uprightperipheral wall 31, aholding space 32 surrounded by the uprightperipheral wall 31, pairs ofpartition plates 34 symmetrically disposed at two sides in theholding space 32, andinsertion slots 33 defined in theholding space 32 at two sides and separated by thepartition plates 34 for holding theweights 40. - The
weights 40 are rectangular heavy plate members receivable in theinsertion slots 33 of theweight carrier pan 30, each having a center throughhole 41 for mounting. - The
support bar unit 50 comprises twobearing plates bearing plates hole center sleeve 53 inserted into the center throughholes bearing plates bearing plates center sleeve 53 defining an axially extended throughhole 54 and having aview window 531, fourbars 55 connected between thebearing plates center sleeve 53 for the holding of the hand to exercise the adjustable dumbbell, two cap-like suspension racks 56 respectively fixedly fastened to thebearing plates weights 40 and a height not greater than the height of theweights 40, symmetrical pairs ofpartition plates 57 respectively fixedly provided in the cap-like suspension racks 56, and a plurality ofdownward insertion slots 58 respectively defined in the cap-like suspension racks 56 and separated by thepartition plates 57 for receiving theweights 40. Further, theleft bearing plate 51 has aview window 512 through which the user can visually check the number ofweights 40 mounted on thesupport bar unit 50. The right bearingplate 52 further comprises a blind hole 522 disposed on the inside, and aretaining device 59 mounted in the blind hole 522. Theretaining device 59 comprises aspring 591 mounted in the blind hole 522, and a steel ball 592 supported on thespring 591. - The selector60 comprises a
coupling tube 61 mounted in thecenter sleeve 53 of thesupport bar unit 50, afirst nut 611 fixedly fastened to one end of theconnecting tube 61, thefirst nut 611 being externally threaded, asecond nut 612 fixedly fastened to the other end of thecoupling tube 61, a left-handed screw rod 62 of semicircular cross section threaded into thesecond nut 612 and rotated in and out of one end of the axially extended throughhole 54 of thecenter sleeve 53, a right-handed screw rod 63 threaded into thefirst nut 611, acontrol knob 64 mounted in theright bearing plate 52 and meshed with the externally threadedfirst nut 611, alocking member 651 adapted to lock thecontrol knob 64, aslide switch 65 for controlling thelocking member 651 to lock/unlock thecontrol knob 64, adisplay wheel 66 mounted in theleft bearing plate 51 above the left-handed screw rod 62, a rack 661 fixedly provided at thedisplay wheel 66, anupper ratchet 662 meshed with the rack 661, and alower ratchet 663 connected to theupper ratchet 662 and meshed with the left-handed screw rod 62. Further, the right-handed screw rod 63 has numerical signs that can be viewed through theview window 531 in thecenter sleeve 53. When rotating thecontrol knob 64, thefirst nut 611 is driven to rotate thecoupling tube 61, thereby causing the left-handed screw rod 62 and the right-handed screw rod 63 to be respectively rotated out of thebearing plates holes 41 of the selectedweights 40, and at the same time the user can view the corresponding numerical sign on the right-handed screw rod 63 through theview window 531 and the corresponding numerical sign on the rack 661 through theview window 512. - When in use, move the
slide switch 65 rightwards to disengage thelocking member 651 from thecontrol knob 64, and then rotate thecontrol knob 64 to extend the left-handed screw rod 62 and the right-handed screw rod 63 out of the axially extended throughhole 54 of thecenter sleeve 53 into center throughholes 41 of the selectedweights 40, and then move theslide switch 65 leftwards to engage thelocking member 651 into thecontrol knob 64 and the lock thecontrol knob 64. At this time, the selectedweights 40 are secured to respectivedownward insertion slots 58 in the cap-like suspension racks 56 and separated by thepartition plates 57. When the user lifted thesupport bar unit 50, the selectedweights 40 are stably lifted with the left-handed screw rod 62 and the right-handed screw rod 63 from theweight carrier pan 30 for exercising. Theother weights 40 are left in theholding space 32 of theweight carrier pan 30, and kept in good order in theinsertion slots 33 by the uprightperipheral wall 31 and thepartition plates 34. - FIGS. 3 and 4 show an adjustable dumbbell constructed according to a second preferred embodiment of the present invention. According to this embodiment, the suspension racks85 are shaped like a substantially inverted U-shaped frame bar respectively fixedly fastened to the two
bearing plates support bar unit 80 of theadjustable dumbbell 70 at an outer side. Each suspension rack 85 has a plurality ofpartition plates 87 respectively inwardly extended from the two opposite side rods thereof, defining a predetermined number ofinsertion slots 88 adapted for receiving theweights 40 stably.
Claims (4)
1. An adjustable dumbbell comprising:
a weight carrier pan having a plurality of insertion slots symmetrically disposed on the inside at two ends thereof;
a plurality of flat weights capably received in the insertion slots of said weight carrier pan, said weights each having a center through hole;
a support bar unit adapted to selectively hold said weights for exercising, said support bar unit having two bearing plates disposed in parallel, a center sleeve connected between said bearing plates, and two suspension racks respectively fixedly fastened to said bearing plates at an outer side, said suspension racks each having a plurality of insertion slots for the positioning of said weights respectively; and
a selector installed in said support bar unit and controlled to selectively secure said weights to said support bar unit for exercising, said selector having two rod members mounted in said center sleeve of said support bar unit, and an adjusting mechanism controlled to move said rod members axially in and out of two distal ends of said center sleeve, thereby enabling said rod members to be selectively inserted into the center holes of said weights to selectively secure said weights to said support bar unit.
2. The adjustable dumbbell as claimed in claim 1 , wherein said suspension racks are shaped like a cap, each having an opening facing downwards and symmetrical pairs of partition plates respectively fixedly provided at two sides, said partition plates defining with the periphery of the respective suspension rack said insertion slots of the suspension rack.
3. The adjustable dumbbell as claimed in claim 1 , wherein said suspension racks are shaped like a substantially inverted U-shaped frame bar respectively fixedly fastened to said bearing plates at an outer side, each having a plurality of partition plates symmetrically disposed at two sides and defining said insertion slots of the suspension rack.
4. The adjustable dumbbell as claimed in claim 1 , wherein said weight carrier pan is provided with a plurality of partition plates symmetrically disposed at two sides and defining said insertion slots of the weight carrier pan.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US10/058,007 US20030148862A1 (en) | 2002-01-29 | 2002-01-29 | Adjustable dumbbell |
Applications Claiming Priority (1)
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US10/058,007 US20030148862A1 (en) | 2002-01-29 | 2002-01-29 | Adjustable dumbbell |
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US20030148862A1 true US20030148862A1 (en) | 2003-08-07 |
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US10/058,007 Abandoned US20030148862A1 (en) | 2002-01-29 | 2002-01-29 | Adjustable dumbbell |
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Cited By (61)
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US6899661B1 (en) * | 1997-07-01 | 2005-05-31 | Mark A. Krull | Exercise resistance methods and apparatus |
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US20070184945A1 (en) * | 2006-02-08 | 2007-08-09 | Asia Regent Limited | Adjustable dumbbell |
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