US3929329A - Apparatus for testing ski boot fit - Google Patents

Apparatus for testing ski boot fit Download PDF

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US3929329A
US3929329A US494534A US49453474A US3929329A US 3929329 A US3929329 A US 3929329A US 494534 A US494534 A US 494534A US 49453474 A US49453474 A US 49453474A US 3929329 A US3929329 A US 3929329A
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coil
pair
ski
movement
springs
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US494534A
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Richard L Rivera
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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
    • A63B21/02—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices using resilient force-resisters
    • A63B21/05—Linearly-compressed elements
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B22/00—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements
    • A63B22/18—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with elements, i.e. platforms, having a circulating, nutating or rotating movement, generated by oscillating movement of the user, e.g. platforms wobbling on a centrally arranged spherical support
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B22/00—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements
    • A63B22/18—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with elements, i.e. platforms, having a circulating, nutating or rotating movement, generated by oscillating movement of the user, e.g. platforms wobbling on a centrally arranged spherical support
    • A63B2022/185—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with elements, i.e. platforms, having a circulating, nutating or rotating movement, generated by oscillating movement of the user, e.g. platforms wobbling on a centrally arranged spherical support specially adapted for using with a single foot or hand
    • 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
    • A63B21/02—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices using resilient force-resisters
    • A63B21/045—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices using resilient force-resisters having torsion or bending or flexion element
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B22/00—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements
    • A63B22/14—Platforms for reciprocating rotating motion about a vertical axis, e.g. axis through the middle of the platform
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B69/00—Training appliances or apparatus for special sports
    • A63B69/18—Training appliances or apparatus for special sports for skiing

Definitions

  • boot bindings mounted for limited rotational move 2 5 A 7 ment in a horizontal plane as well as bending movel ment forward and backward and from side to side to provide 3 of freedom of movement to simulate posi- [56] References Cited tions that will be encountered in skiing and permit the UNITED STATES PATENTS user thereof to duplicate the feel of his ski boots that 2,206,902 7/1940 Kost 272/57 D will be felt on the slopes. 2,230,033 1/1941 hackett.... I 3 531 110 9 9 4 Claims, 6 Drawing Figures Marchu 272/57 B U.S. Patent Dec.
  • ski boots usually takes place at stores located far from the ski slopes and many times occurs at a time of year when the slopes are not suited for skiing. As a result the skier in trying on ski boots is merely able to walk around a bit in the hope that by this means he can determine if a pair of boots is a proper fit. As usually happens, the ski boots fitted in this manner do not fit properly and this is only discovered when the skier is on the slopes and is able to put the boots through the maneuvers and positions, heretofore only found in actual skiing on the slopes.
  • the turn is performed by the use of two basic motions.
  • the first of these is leaning forward sharply from the ankles, thus unweighting equally the heels of the skis. While the skis remain and the heels thereof unweighted, the shoulders are rotated sharply in one direction or the other, the body remaining rigid, so that the shoulder motion is transmitted to the skis, driving the same around in a parallel turn.
  • at least these motions should be applied to a pair of ski boots being fitted to the skiers feet so as to establish the fit and comfort thereof in so doing.
  • Another object of the invention is to provide a machine on which the basic motions of skiing can be performed at convenient times and places and in a manner to more completely test the fit of ski boots being fitted to the wearer under simulated skiing conditions.
  • FIG. I is a frontal elevational view in perspective of the apparatus of this invention mounted by a user;
  • FIG. 2 is a front elevation thereof
  • FIG. 3 is a view along line 3-3 of FIG. 2;
  • FIG. 4 is a view along line 4--4 of FIG. 2;
  • FIG. 5 is a view along line 55 of FIG. 3;
  • FIG. 6 is a view along 6-6 6-6 of FIG. 4.
  • the apparatus 10 comprises a stationary base portion 12 supporting for limited rotation in a horizontal plane a pair of independent left and right boot platforms l4 and 16 respectively.
  • platforms l4 and 16 To either side of platforms l4 and 16 are mounted support members 18 and 20 having extensible portions 22 and 24 respectively. Each extension terminates in a suitable hand grip such as a ball 26.
  • the boot platforms 14 and 16 are supported respectively upon coil springs 28 and 30 which allow movement of the boot platforms in two degrees of freedom about an axis longitudinally of the boot platforms and about an axis normal thereto.
  • the upper ends of springs 28 and 30 are fixedly secured to the boot platforms 14 and 16 respectively while the springs are secured to the base to permit limited movement in a horizontal plane. As best seen in FIG.
  • the lowermost coil 35 of spring 30 is secured to the base 12 by means of clips 32 and 34 as by means of screws 36.
  • Clips 32 and 34 provide a sliding fit to the coil of spring 30 so as to permit rotational movement thereof in a horizontal plane.
  • a floating washer 38 mounted on the lowermost coil 35 of spring 30 in diametrically opposed relation.
  • arcuate section of tubing 40 of metal and the like is positioned over the washer 38. Adjacent either end of the arcuate portion is positioned a pin 42 and 44 which passes through the arcuate tube and through the coil 35 of spring 30.
  • a small spring 46 and 48 is screwed inside one or the other side of tube 40 past and via pins 42 and 44. The exposed ends of springs 46 and 48 provide resilient contact with brackets 32 and 34 and the positioning of the springs determines the range of travel.
  • each boot platform On top of each boot platform is mounted a pair of ski bindings 50 of any suitable design to secure the boots 52 on the feet of a wearer.
  • the wearer secures the boots in the bindings and with the help of the support handles 26 supports himself upon the boot platforms. In this position the wearer can rotate the boots through all three degrees of freedom to test the fit and comfort of the boots being worn.
  • Apparatus for the checking and verification of feel and fit of a pair of ski boots to the feet of a wearer under conditions simulating those of actual use on the ski slopes which comprises in combination;
  • each spring mounted on said base member in sideby-side relation with the axes of the coils near parallel, said springs being mounted for limited rotational movement about said axes in a horizontal plane, as well as bending movement forward and backward and from side-to-side to provide three degrees of freedom of movement; and, foot support platform attached to the upper extremity of each spring to lie generally near the same plane, each said foot platform having a ski binding attached to the upper surface thereof to secure thereto a pair of ski boots therein in side-byside skiing relation.
  • the apparatus of claim 1 including a pair of handhold supports mounted on said stationary base to either side of the coil springs to help steady the ski boot wearer.
  • the resilient movement limiting means comprises an arcuate segment of loose fitting rigid tubing positioned on said lowest coil to either side of the clamping means, pin means passing diametrically through each end of the arcuate tube and through the lowest coil securing said tube to said lowest coil, an annular divider means positioned on said lowest coil within the tubing intermediate the pin means and a pair of springs positioned within the arcuate tube, one to either side of the divider means acting therebetween and the pin means.

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biophysics (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Cardiology (AREA)
  • Vascular Medicine (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)

Abstract

Apparatus including a pair of coil spring supported ski boot bindings mounted for limited rotational movement in a horizontal plane as well as bending movement forward and backward and from side to side to provide 3* of freedom of movement to simulate positions that will be encountered in skiing and permit the user thereof to duplicate the feel of his ski boots that will be felt on the slopes.

Description

United States Patent Rivera Dec. 30, 1975 4 [5 APPARATUS FOR TESTING SKI BOOT FIT FOREIGN PATENTS OR APPLICATIONS [76] Inventor: Richard Rivera 430 5 Marion 650,754 5/1962 Canada 272 57 E Parkway, Apt. 101, Denver, Colo. 80209 A Primary Examiner-Richard J. Apley [22] Filed: Aug. 5, 1974 Assistant Examiner-Joseph R. Taylor pp No: 494,534 Attorney, Agent, or Firm-Max L. Wymore [57] ABSTRACT Apparatus including a pair of Coil Spring supported Ski [58] Field 57 E 60/R. boot bindings mounted for limited rotational move 2 5 A 7 ment in a horizontal plane as well as bending movel ment forward and backward and from side to side to provide 3 of freedom of movement to simulate posi- [56] References Cited tions that will be encountered in skiing and permit the UNITED STATES PATENTS user thereof to duplicate the feel of his ski boots that 2,206,902 7/1940 Kost 272/57 D will be felt on the slopes. 2,230,033 1/1941 Hackett.... I 3 531 110 9 9 4 Claims, 6 Drawing Figures Marchu 272/57 B U.S. Patent Dec. 30, 1975 APPARATUS FOR TESTING SKI BOOT FIT The purchase and fitting of ski boots usually takes place at stores located far from the ski slopes and many times occurs at a time of year when the slopes are not suited for skiing. As a result the skier in trying on ski boots is merely able to walk around a bit in the hope that by this means he can determine if a pair of boots is a proper fit. As usually happens, the ski boots fitted in this manner do not fit properly and this is only discovered when the skier is on the slopes and is able to put the boots through the maneuvers and positions, heretofore only found in actual skiing on the slopes.
According to the parallel style of skiing, the turn is performed by the use of two basic motions. The first of these is leaning forward sharply from the ankles, thus unweighting equally the heels of the skis. While the skis remain and the heels thereof unweighted, the shoulders are rotated sharply in one direction or the other, the body remaining rigid, so that the shoulder motion is transmitted to the skis, driving the same around in a parallel turn. Thus, at least these motions should be applied to a pair of ski boots being fitted to the skiers feet so as to establish the fit and comfort thereof in so doing.
It is accordingly an object of the present invention to provide apparatus on which these motions and others can be duplicated and actual ski positions be simulated by a wearer of ski boots being fitted.
Another object of the invention is to provide a machine on which the basic motions of skiing can be performed at convenient times and places and in a manner to more completely test the fit of ski boots being fitted to the wearer under simulated skiing conditions.
Other objects and advantages of the invention will become apparent from the following detailed description taken in connection with the accompanying drawmg.
FIG. I is a frontal elevational view in perspective of the apparatus of this invention mounted by a user;
FIG. 2 is a front elevation thereof;
FIG. 3 is a view along line 3-3 of FIG. 2;
FIG. 4 is a view along line 4--4 of FIG. 2;
FIG. 5 is a view along line 55 of FIG. 3; and,
FIG. 6 is a view along 6-6 6-6 of FIG. 4.
The apparatus 10 comprises a stationary base portion 12 supporting for limited rotation in a horizontal plane a pair of independent left and right boot platforms l4 and 16 respectively. To either side of platforms l4 and 16 are mounted support members 18 and 20 having extensible portions 22 and 24 respectively. Each extension terminates in a suitable hand grip such as a ball 26. The boot platforms 14 and 16 are supported respectively upon coil springs 28 and 30 which allow movement of the boot platforms in two degrees of freedom about an axis longitudinally of the boot platforms and about an axis normal thereto. The upper ends of springs 28 and 30 are fixedly secured to the boot platforms 14 and 16 respectively while the springs are secured to the base to permit limited movement in a horizontal plane. As best seen in FIG. 5 the lowermost coil 35 of spring 30 is secured to the base 12 by means of clips 32 and 34 as by means of screws 36. Clips 32 and 34 provide a sliding fit to the coil of spring 30 so as to permit rotational movement thereof in a horizontal plane. Mounted on the lowermost coil 35 of spring 30 in diametrically opposed relation is a floating washer 38. An
arcuate section of tubing 40 of metal and the like is positioned over the washer 38. Adjacent either end of the arcuate portion is positioned a pin 42 and 44 which passes through the arcuate tube and through the coil 35 of spring 30. A small spring 46 and 48 is screwed inside one or the other side of tube 40 past and via pins 42 and 44. The exposed ends of springs 46 and 48 provide resilient contact with brackets 32 and 34 and the positioning of the springs determines the range of travel.
On top of each boot platform is mounted a pair of ski bindings 50 of any suitable design to secure the boots 52 on the feet of a wearer. The wearer secures the boots in the bindings and with the help of the support handles 26 supports himself upon the boot platforms. In this position the wearer can rotate the boots through all three degrees of freedom to test the fit and comfort of the boots being worn.
Thus, there is provided a novel, mechanically sound and rugged device for checking the fit of ski boots to the individual wearers feet prior to actual use on the ski slopes. While there has been illustrated a preferred embodiment of the invention, it is to be understood that the invention is susceptible of modifications within the spirit and scope of the claims.
What is claimed is:
1. Apparatus for the checking and verification of feel and fit of a pair of ski boots to the feet of a wearer under conditions simulating those of actual use on the ski slopes which comprises in combination;
a stationary base member;
a pair of coil springs mounted on said base member in sideby-side relation with the axes of the coils near parallel, said springs being mounted for limited rotational movement about said axes in a horizontal plane, as well as bending movement forward and backward and from side-to-side to provide three degrees of freedom of movement; and, foot support platform attached to the upper extremity of each spring to lie generally near the same plane, each said foot platform having a ski binding attached to the upper surface thereof to secure thereto a pair of ski boots therein in side-byside skiing relation.
2. The apparatus of claim 1 including a pair of handhold supports mounted on said stationary base to either side of the coil springs to help steady the ski boot wearer.
3. The apparatus of claim 1 wherein the lowermost coil of each spring is near perpendicular to the axis of each coil spring and is loosely clamped to the stationary base by diametrically opposed clamps to permit movement of said lowest coil in a horizontal plane and resilient movement limiting means mounted on the lowest coil to either side of the clamping means to limit the rotational movement of said coil springs.
4. The apparatus of claim 3 wherein the resilient movement limiting means comprises an arcuate segment of loose fitting rigid tubing positioned on said lowest coil to either side of the clamping means, pin means passing diametrically through each end of the arcuate tube and through the lowest coil securing said tube to said lowest coil, an annular divider means positioned on said lowest coil within the tubing intermediate the pin means and a pair of springs positioned within the arcuate tube, one to either side of the divider means acting therebetween and the pin means.

Claims (4)

1. Apparatus for the checking and verification of feel and fit of a pair of ski boots to the feet of a wearer under conditions simulating those of actual use on the ski slopes which comprises in combination; a stationary base member; a pair of coil springs mounted on said base member in side-byside relation with the axes of the coils near parallel, said springs being mounted for limited rotational movement about said axes in a horizontal plane, as well as bending movement forward and backward and from side-to-side to provide three degrees of freedom of movement; and, a foot support platform attached to the upper extremity of each spring to lie generally near the same plane, each said foot platform having a ski binding attached to the upper surface thereof to secure thereto a pair of ski boots therein in sideby-side skiing relation.
2. The apparatus of claim 1 including a pair of hand-hold supports mounted on said stationary base to either side of the coil springs to help steady the ski boot wearer.
3. The apparatus of claim 1 wherein the lowermost coil of each spring is near perpendicular to the axis of each coil spring and is loosely clamped to the stationary base by diametrically opposed clamps to permit movement of said lowest coil in a horizontal plane and resilient movement limiting means mounted on the lowest coil to either side of the clamping means to limit the rotational movement of said coil springs.
4. The apparatus of claim 3 wherein the resilient movement limiting means comprises an arcuate segment of loose fitting rigid tubing positioned on said lowest coil to either side of the clamping means, pin means passing diametrically through each end of the arcuate tube and through the lowest coil securing said tube to said lowest coil, an annular divider means positioned on said lowest coil within the tubing intermediate the pin means and a pair of springs positioned within the arcuate tube, one to either side of the divider means acting therebetween and the pin means.
US494534A 1974-08-05 1974-08-05 Apparatus for testing ski boot fit Expired - Lifetime US3929329A (en)

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Cited By (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4139193A (en) * 1977-10-13 1979-02-13 Felber David P Kick training aid for karate
US4200282A (en) * 1977-12-16 1980-04-29 Agyagos Ferenc I Multiple exerciser device
US4694684A (en) * 1986-02-13 1987-09-22 Campbell Iii Harry J Dynamic balancing for skis
US4739986A (en) * 1987-06-05 1988-04-26 Kucharik Edward J Foot, ankle and lower leg exerciser
US4787630A (en) * 1987-04-14 1988-11-29 Robert Watson Exercise device
US5320593A (en) * 1993-06-22 1994-06-14 Heatwole Richard L Exercising and/or amusement device
US5391134A (en) * 1993-06-22 1995-02-21 Heatwole; Richard L. Exercising and/or amusement device
US5413543A (en) * 1993-07-23 1995-05-09 Drago; Marcello S. Ankle, foot and toes exercising apparatus
US5487711A (en) * 1994-11-25 1996-01-30 Little; Oscar L. Lower leg exercise device and method
US5536226A (en) * 1994-12-27 1996-07-16 Gordon Research & Development, Inc. Exercise and therapy apparatus
US5613856A (en) * 1995-07-11 1997-03-25 Hoover; Robert Ski training system
US5667462A (en) * 1994-12-27 1997-09-16 Gordon Research & Development, Inc. Exercise and therapy apparatus
WO1998055184A1 (en) * 1997-06-04 1998-12-10 Frantisek Ziak Balance board
US6413197B2 (en) 1998-10-20 2002-07-02 563704 B.C. Ltd. Torsion board
US20030125173A1 (en) * 2002-10-18 2003-07-03 Reebok International Ltd. An Exercise Apparatus
US6616583B1 (en) * 2001-10-31 2003-09-09 Fitter International, Inc. Exercise board having resilient rocker-mounting ends
US6676579B1 (en) * 2002-07-27 2004-01-13 Asia Regent Ltd Yoga balance trainer
USD489778S1 (en) 2002-10-18 2004-05-11 Reebok International Ltd. Portion of an exercise device
US6758793B2 (en) * 2000-11-27 2004-07-06 Scott Eldridge Sports and recreation apparatus
USD493500S1 (en) 2000-12-15 2004-07-27 William T. Dalebout Top surface of an exercise device
US20050164836A1 (en) * 2004-01-28 2005-07-28 Harker Verla D. Exercise device for lower body
US7112168B2 (en) 2000-12-15 2006-09-26 Icon Ip, Inc. Selectively dynamic exercise platform
US20090011903A1 (en) * 2007-07-05 2009-01-08 Mark Turnquist Cantilever Springboard Exercise Station
US20090227426A1 (en) * 2005-05-26 2009-09-10 Graeme Andrew Dubar Activity board
US7645221B1 (en) * 2007-12-08 2010-01-12 Mike Curry Multi-angle exercise balance platform
CN101843965A (en) * 2010-05-19 2010-09-29 周维保 Multifunctional hand and foot exerciser
US8105219B1 (en) * 2009-04-06 2012-01-31 Sloan Paula E Cheerleader training device
US20120178068A1 (en) * 2009-10-06 2012-07-12 Skia Designs Limited Ski training device
US20140100087A1 (en) * 2011-06-07 2014-04-10 Sung Eui Ha Stretching device
US8998784B1 (en) 2009-04-06 2015-04-07 Paula E Sloan Cheerleader training device
USD734824S1 (en) * 2014-09-03 2015-07-21 Matthew H. Giroux Gymnast hand stand
US20160213971A1 (en) * 2015-01-26 2016-07-28 Bryan A. Jones Exercise apparatus
US20170007874A1 (en) * 2015-07-07 2017-01-12 Wei-Teh Ho Torsion based exerciser
US10212994B2 (en) 2015-11-02 2019-02-26 Icon Health & Fitness, Inc. Smart watch band
CN114470710A (en) * 2022-01-05 2022-05-13 燕山大学 Six-freedom-degree double-plate skiing simulator

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2206902A (en) * 1935-04-29 1940-07-09 Kost Alwin Foot corrective device
US2230033A (en) * 1939-01-04 1941-01-28 James W Hackett Foot exerciser
US3531110A (en) * 1968-04-23 1970-09-29 Frederick Marchu Skiing simulator with individually controlled ski mounts

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2206902A (en) * 1935-04-29 1940-07-09 Kost Alwin Foot corrective device
US2230033A (en) * 1939-01-04 1941-01-28 James W Hackett Foot exerciser
US3531110A (en) * 1968-04-23 1970-09-29 Frederick Marchu Skiing simulator with individually controlled ski mounts

Cited By (44)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4139193A (en) * 1977-10-13 1979-02-13 Felber David P Kick training aid for karate
US4200282A (en) * 1977-12-16 1980-04-29 Agyagos Ferenc I Multiple exerciser device
US4694684A (en) * 1986-02-13 1987-09-22 Campbell Iii Harry J Dynamic balancing for skis
US4787630A (en) * 1987-04-14 1988-11-29 Robert Watson Exercise device
US4739986A (en) * 1987-06-05 1988-04-26 Kucharik Edward J Foot, ankle and lower leg exerciser
US5320593A (en) * 1993-06-22 1994-06-14 Heatwole Richard L Exercising and/or amusement device
US5391134A (en) * 1993-06-22 1995-02-21 Heatwole; Richard L. Exercising and/or amusement device
US5413543A (en) * 1993-07-23 1995-05-09 Drago; Marcello S. Ankle, foot and toes exercising apparatus
US5586958A (en) * 1994-11-25 1996-12-24 Little, Sr.; Oscar L. Lower leg exercise device
US5487711A (en) * 1994-11-25 1996-01-30 Little; Oscar L. Lower leg exercise device and method
US5667462A (en) * 1994-12-27 1997-09-16 Gordon Research & Development, Inc. Exercise and therapy apparatus
US5536226A (en) * 1994-12-27 1996-07-16 Gordon Research & Development, Inc. Exercise and therapy apparatus
US5613856A (en) * 1995-07-11 1997-03-25 Hoover; Robert Ski training system
WO1998055184A1 (en) * 1997-06-04 1998-12-10 Frantisek Ziak Balance board
US6413197B2 (en) 1998-10-20 2002-07-02 563704 B.C. Ltd. Torsion board
US6758793B2 (en) * 2000-11-27 2004-07-06 Scott Eldridge Sports and recreation apparatus
USD493500S1 (en) 2000-12-15 2004-07-27 William T. Dalebout Top surface of an exercise device
USD493855S1 (en) 2000-12-15 2004-08-03 William T. Dalebout Portion of a top surface of an exercise device
US7112168B2 (en) 2000-12-15 2006-09-26 Icon Ip, Inc. Selectively dynamic exercise platform
US6616583B1 (en) * 2001-10-31 2003-09-09 Fitter International, Inc. Exercise board having resilient rocker-mounting ends
US6676579B1 (en) * 2002-07-27 2004-01-13 Asia Regent Ltd Yoga balance trainer
USD489778S1 (en) 2002-10-18 2004-05-11 Reebok International Ltd. Portion of an exercise device
US20030125173A1 (en) * 2002-10-18 2003-07-03 Reebok International Ltd. An Exercise Apparatus
US7008359B2 (en) 2002-10-18 2006-03-07 Reebok International Ltd. Exercise apparatus
US20050164836A1 (en) * 2004-01-28 2005-07-28 Harker Verla D. Exercise device for lower body
US6976939B2 (en) 2004-01-28 2005-12-20 Harker Verla D Exercise device for lower body
US20090227426A1 (en) * 2005-05-26 2009-09-10 Graeme Andrew Dubar Activity board
US20090011903A1 (en) * 2007-07-05 2009-01-08 Mark Turnquist Cantilever Springboard Exercise Station
US7645221B1 (en) * 2007-12-08 2010-01-12 Mike Curry Multi-angle exercise balance platform
US8105219B1 (en) * 2009-04-06 2012-01-31 Sloan Paula E Cheerleader training device
US8343022B1 (en) 2009-04-06 2013-01-01 Cheerful Athletics, Llc Cheerleader training device
US8998784B1 (en) 2009-04-06 2015-04-07 Paula E Sloan Cheerleader training device
US9232829B2 (en) * 2009-10-06 2016-01-12 Skia Designs Limited Ski training device
US20120178068A1 (en) * 2009-10-06 2012-07-12 Skia Designs Limited Ski training device
CN101843965A (en) * 2010-05-19 2010-09-29 周维保 Multifunctional hand and foot exerciser
US20140100087A1 (en) * 2011-06-07 2014-04-10 Sung Eui Ha Stretching device
US9254415B2 (en) * 2011-06-07 2016-02-09 Sung Eui Ha Stretching device
USD734824S1 (en) * 2014-09-03 2015-07-21 Matthew H. Giroux Gymnast hand stand
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US9682278B2 (en) * 2015-01-26 2017-06-20 Bryan A. Jones Exercise apparatus
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