EP0097701A1 - Dispositif d'entrainement isometrique et isotonique a resistance variable - Google Patents

Dispositif d'entrainement isometrique et isotonique a resistance variable

Info

Publication number
EP0097701A1
EP0097701A1 EP19830900377 EP83900377A EP0097701A1 EP 0097701 A1 EP0097701 A1 EP 0097701A1 EP 19830900377 EP19830900377 EP 19830900377 EP 83900377 A EP83900377 A EP 83900377A EP 0097701 A1 EP0097701 A1 EP 0097701A1
Authority
EP
European Patent Office
Prior art keywords
cable
switch
tension
motor
capstan
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.)
Withdrawn
Application number
EP19830900377
Other languages
German (de)
English (en)
Inventor
Robert Samuel Smith
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from US06/335,911 external-priority patent/US4479647A/en
Application filed by Individual filed Critical Individual
Publication of EP0097701A1 publication Critical patent/EP0097701A1/fr
Withdrawn legal-status Critical Current

Links

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
    • A63B21/15—Arrangements for force transmissions
    • A63B21/151—Using flexible elements for reciprocating movements, e.g. ropes or chains
    • A63B21/153—Using flexible elements for reciprocating movements, e.g. ropes or chains wound-up and unwound during exercise, e.g. from a reel
    • 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
    • A63B21/005—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices using electromagnetic or electric force-resisters
    • A63B21/0058—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices using electromagnetic or electric force-resisters using motors

Definitions

  • This invention relates to exercise apparatus and
  • the resistance is 26 provided by springs, or hydraulic or pneumatic pressure.
  • 35 of isometric exercises include standing on one end of a 36 rope and pulling on the other end, or grasping a rope in
  • a tension measuring device may be attached to the rope to provide an indication of the effort exerted by the exerciser.
  • the usefulness of a particular exercise device is determined among other things by the variety of exercises that can be performed, the range of resistance that can be applied, mode of exercise (i.e. isometric or isotonic), cost, control of speed of motion, durability, convenience of location and overall weight.
  • this invention ah exercise machine is provided which includes an electrically controlled means for locating with negligible resistance a bar or handle attached to one or more cables at any desired position in preparation for exercise.
  • the structure of this invention allows exercise to be performed isotoni- cally by pulling against the bar or handle with a force such that no motion of the bar or handle occurs unless the force exceeds a preset value.
  • the structure of this invention causes the cables to be automatically retracted once the cables become slack, although no perceptible retraction force is exerted as long as the cables are held slightly taut by the exerciser.
  • the structure of this invention provides means for clamping the cables to prevent their movement in order that isometric exercises can be performed at any preset handle position.
  • the structure of this invention provides a signal (e.g. a light or a bell) which is emitted when the exercise tension applied to the cables exceeds a preset value.
  • the electrically controlled means for locating is contained in a housing with one or more cables emerging from the top of the housing.
  • a bar is attached to the cables enabling the performer to exercise by standing on the top of the housing and grasping and applying force to the bar attached to the cables.
  • the cables emerge from a housing and are attached to the waist of a swimmer.
  • the cables emerge from the housing and are attached to the waist of a runner.
  • Figure 1 presents one embodiment of this invention in which is shown a platform with two cables 6a, 6b emerging from two sides 4-2 and 4-4 of the platform and attached to the ends of bar 7;
  • Figure 2 depicts the structure of Figure 1 in which two upright supports have been added
  • FIG 3 shows the arrangement of the cables within the housing for the embodiments shown in Figures 1 and 2;
  • Figure 4 shows in detail the control mechanism within dotted line enclosure A of Figure 3;
  • OM Figure 5 shows one embodiment of the tension sensing and timing circuitry used during the isometric mode of exercise
  • Figure 6 shows one embodiment of the electrical means for sensing" tension, establishing direction of wind or rewind, and exercise mode selection
  • Figure 7 shows a second embodiment of said electrical means for sensing tension, establishing direction of wind or rewind, and exercise mode selection.
  • Figure 1 shown a platform 101 of convenient size which, in the embodiment of Figure 1 forms the top side of a box or housing 100.
  • a convenient size for many purposes is a box one foot high by two feet deep by four feet wide. However these dimensions can be varied as appropriate and are not critical.
  • the platform 101 is divided into three sections 1, 2 and 3. Sections 1 and 3 are rigidly fastened to sides 4-1, 4-4 and 4-1, 4-2, respectively of box 100 while section 2 is hinged (via hinges 104) along side 4-1.
  • one end 6b of a cable 6 emerges from a hole 1-1 in section i while the other end 6a of cable 6 emerges from a hole 3-1 in section 3.
  • the cable ends are attached to the ends 7a and 7b of bar 7.
  • Figure 2 shows a second embodiment of this invention which is similar to the embodiment of Figure 1 and which includes upright supports 8a and 8b fixed at each end of platform 101.
  • Cross supports 9a and 9b are clamped at any desired height on the upright supports 8a and 8b to support the bar 7 and thereby to establish the starting position of the exercise.
  • a foot switch 10 in the platform 101 releases the cable 6 allowing the bar 7 to be set at any desired height to start the exercise.
  • a second foot switch 31 establishes the mode of exercise as either isometric or isotonic, as desired.
  • FIG 3 shows the layout of the cable 6 inside the box 100.
  • Pulley 12 directs end 6a of cable 6 to pulleys 14 and 15 and pulley 13 directs end 6b of cable 6 to pulleys 14 and 15.
  • Pulleys 14 and 15 direct the doubled cable to pulley 16.
  • Pulley 16 is mounted on a sensing mechanism not shown in Figure 3 but described later and shown in detail in Figure 4. Still referring to Figure 3, the two ends 6a and 6b of cable, after combining and passing over pulley 16 are wrapped around capstan 17.
  • Capstan 17 (which could be replaced by a winch or any other appropriate structure) is driven through worm gear 18 by a worm 19. Worm gear 18 and worm 19 brake capstan 17 when not being used to rotate capstan 17 in one or the other direction.
  • the sensing mechanism shown in Figure 4 can do several different things, namely, (1) cause the worm to wind the cable 6 up on the capstan 17 when the cable is slack; (2) cause the worm 19 to unwind the cable from capstan 17 allowing one to raise the bar 7 either with or without resistance, as desired, or; (3) cause the worm 19 to be stationary and thereby lock the cable 6 for isometric exercises or when tension in the cable is insufficient to turn on the unwinding means.
  • Sensing mechanism 105 on which pulley 16 is mounted is located within the dotted enclosure A of Figure 3 and shown in detail in Figure 4.
  • Sensing mechanism 105 includes rectangular rod 22 located above and parallel to threaded rod 21.
  • Rod 21 passes through a tapped hole in block 23, with pulley 16 being mounted on block 23.
  • Rod 21 also passes through a clearance hole (i.e. an unthreaded hole through which threaded rod 21 can slide with negligible resistance) in bar 24 which is attached (typically by
  • Rod 21 is positioned with respect to block 24 by a spring 25 mounted on rod 21 on one side of bar 24 and by a keeper nut 26 on the other side of bar 24, as shown.
  • spring 25 mounted on rod 21 on one side of bar 24 and by a keeper nut 26 on the other side of bar 24, as shown.
  • rewind switch 27 When rod 21 slides in the direction of arrow 21a and thus compresses spring 25 due to tension in cable 6, rewind switch 27 is switched from the "slack" position (i.e. when cable 6 is slackened) to the "taut” position (i.e. when cable is taut).
  • worm 19 Figure 3 is turned by motor 20 to wind the cable 6 up on capstan 17 ( Figure 3) until the cable 6 is slightly taut, whereupon rewind switch 27 ( Figure 4) switches to the "taut” position and the worm 19 stops turning.
  • Rectangular rod 22 is fixed, for example by welding to block 24 as shown.
  • Block 24 is pivotally mounted on pin 30 which is rigidly attached to the frame (not shown) of the apparatus.
  • Bar 22 fits into a groove in sliding weight 28.
  • the assembly (rods 21, 22 and bar 24) pivits about pin 30 so as to switch the "lift" switch 29, located at one end of bar 22.
  • This operation of lift switch 29 causes the worm 19 to turn and unwind the cable 6 from the capstan 17 ( Figure 3).
  • the amount of tension in the cable 6 (and thus the force on the bar 7) required to unwind the cable 6 is determined by the distance dl between sliding weight 28 and pin 30, as well as by the distance d2 between block 23 and pin 30 and the distance d3 between the pin 30 and the centerline of rod 21.
  • the position of block 23 is changed by turning knob 38. Rotating the threaded rod 21 and causing block 23 to move linearly along rod 21, thus changes distance d2.
  • position switch 10 (shown in Figures 1, 2, 4, 6 and 7) is connected such that if slight tension is applied to the cable 6 and position switch 10 is simultaneously closed, the cable will unwind, thus allowing positioning of the bar 7 ( Figures 1 and 2) without resistance.
  • position switch 10 is a foot operated switch located on the platform 101 as shown in Figure 2.
  • a "mode" switch 31 which is used to switch the equipment to either the isometric mode or the isotonic mode (see Figures 1 and 2).
  • switch 31 causes lift switch 29 to be connected to isometric timer (not shown in Figure 4 but described later), cable 6 to be locked in a fixed position and lift switch 29 to be con- nected to the cable drive circuitry (not shown in Figure 4 but described below).
  • Isometric timer 110 for defining the length of time of each isometric exercise.
  • Isometric timer 110 includes timer motor 32 with cam 33 mounted on the shaft of timer motor 32.
  • cam 33 is a disk with two removable screws (not shown) on its periphery, with the screws causing switch 34 to operate as cam 33 is rotated and with the angular separation of the two screws defining the isometric timing interval. If switch 34 is in the reset condition when the mode switch 31 is first switched to isometric and cable 6 is slack so that switch 29 is in the "no lift" position, the green light 36 will come on indicating that the timer motor 32 is turning so as to switch 34 to start. At this point, the motor 32 and lights 36 are both off. When the exerciser exerts enough tension to switch 29 to lift, timer motor 32 and red light 35 turn on. Motor 32 turns until the cam moves switches 34 to reset at which time the red light
  • the lift switch 29 When the mode switch 31 is switched to the isotonic position, the lift switch 29 is connected into the wind- unwind circuitry (not shown in Figure 5).
  • the function of this wind-unwind circuitry is to provide the wind-unwind functions described above, i.e. unwind cable 6 from capstan 17 when strong tension is applied to cable 6 in excess of the preset tension, wind cable 6 onto capstan 17 when the cable 6 is slack, and maintain cable 6 in position when only slight tension is applied to cable 6.
  • FIG. 6 one embodiment of the wind-unwind circuitry of this invention is shown in Figure 6.
  • rewind switch 27 When rewind switch 27 is i the wind position, (i.e. cable 6 is slack) three pole double throw relay 37, connected to the windings of capstan motor 20, turns on capstan motor 20 so as to wind the cable 6 up on capstan 17.
  • the cable 6 becomes suffi- ciently taut so as to cause rewind switch 27 ( Figure 4) to be moved to the taut position, relay 37 is turned off. hen relay 37 is off, power to the capstan motor 20 is disconnected thereby causing capstan motor 20 to stop and thereby locking the cable 6 fixed.
  • Capstan motor 20 thereby turns on so as to unwind the cable 6 from the capstan 17.
  • Position switch 10 is connected in parallel with lift switch 29 thus providing that if the cable 6 is taut (i.e. switch 27 in the taut position), and position switch 10 is closed (i.e. by the performer indicating that a no resistan change in the height of bar 7 is desired), the cable will unwind enabling the bar 7 to be positioned without resistanc
  • FIG. 7 Another embodiment of the wind-rewind circuitry of this invention is shown in Figure 7.
  • Worm 19 is driven either by wind motor 39 or by unwind motor 40.
  • either one or both the wind and unwind motors 39, 40 are connected to a source of power through a speed controller, thus allowing the winding and unwinding of cable 6 on capstan 17 at a selected one of a large number of possible speeds.
  • speed controller 41 is shown connected between a source of power and unwind motor 40.
  • mode switch 31 When mode switch 31 is set in the isotonic mode, lift switch 29 controls the unwind motor 40. When tension in the cable 6 is sufficient to cause switch 29 to be set in the lift position, motor 40 unwinds the cable 6 from capstan 17.
  • wind switch 27 closes to the slack position thus causing wind motor 39 to operate to wind up the cable 6 on capstan 17, thus removing the slack from cable 6.
  • capstan motor 20 Figure 6
  • wind and unwind motors 39, 40 Figure 7
  • Still another means to minimize surge currents is to attach to the worm shaft a brake (not shown) which brakes the worm shaft when no power is applied to the motors 20, 39 r 40.
  • brakes are well known to those of ordinary skill in the mechanical arts, the use of brakes is rather expensive.
  • rotation detector 120 is shown in which a band 41 is held astride the worm shaft 42 by opposing anchor springs
  • the band 41 tends to rotate with worm shaft 42 thereby switching motion switch 44a which thereby prevents power from being applied to the timer motor 20 ( Figure 6) or the wind motor 39 ( Figure 7) thus preventing the clockwise drive of worm shaft 42 until the counter- clockwise rotation of worm shaft 42 has ceased. In this manner, surge currents are minimized.
  • capstan 17 which winds, unwinds or clamps the cable 6, as desired. It is emphasized that means other than capstan 17 provide additional embodiments of this invention.
  • Figure 9 another embodiment of this invention is shown, which includes threaded rod 45 which is supported at one end by a bearing 46 held in a fixed support 47. Threaded rod 45 is coupled at its other end to a reversible motor 48. The rod 45 is threaded through a movable support 49 with pulleys 50A and 50B being mounted on movable support 49. The ends of two cables, 51A and 51B are anchored on fixed support 47 as shown.
  • the cables 51A and 51B pass around pulleys 50A and 50B, respectively, and then around fixed pulleys 52A and 52B, respectively.
  • the two cables 51A and 51B then pass on to a tension sensing mechanism (not shown), such as the tension sensing mechanisms previously described in the foregoing paragraphs, and are in turn connected to a tension sensing mechanism (not shown), such as the tension sensing mechanisms previously described in the foregoing paragraphs, and are in turn connected to a tension sensing mechanism (not shown), such as the tension sensing mechanisms previously described in the foregoing paragraphs, and are in turn connected to a
  • the motor 48 turns on and the movable support 49 moves toward stationary support 47, thereby causing the cables 51A, 51B to "play out", which is analogous to the unwind operation of the previously described embodiments.
  • the motor 48 turns on in the opposite direction causing the movable support 49 to move away from fixed support 47 and thus the slackness of cables 51A, 51B is removed which is analogous to the wind operation of the previously described embodiments.
  • the threaded rod 45 prevents movement of (i.e. "locks") the cables 51A, 51B.
  • the embodiment of Figure 9 is suitable for use with a low cost motor 48, such as the universal AC-DC type which is, if desired, powered by an inexpensive speed controller of well known design (not shown). Furthermore, the embodiment of Figure 9 provides a substantial reduction in the cost of gearing as compared with the embodiments of Figures 3 and 7 which utilize the worm drive worm gear-capstan structure.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biophysics (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Rehabilitation Tools (AREA)

Abstract

Dans un dispositif d'entraînement, un système commandé électriquement (100) fournit une résistance variable à un câble sur lequel l'opérateur tire par l'intermédiaire d'un câble d'extension (6a et 6b) et une barre associée (7). Un bouton (38) permet à un opérateur de varier la force nécessaire pour tendre le câble, et un commutateur de commande (31) établit le mode d'entraînement soit isotonique soit isométrique. Lorsque le câble est tendu dans le mode isotonique, une force continue agit pour maintenir la corde raide de sorte qu'un retrait du câble est effectué lorsqu'il y a du mou dans la corde.
EP19830900377 1981-12-30 1982-12-13 Dispositif d'entrainement isometrique et isotonique a resistance variable Withdrawn EP0097701A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US06/335,911 US4479647A (en) 1981-12-30 1981-12-30 Resistance exerciser
US39766382A 1982-07-12 1982-07-12
US397663 1982-07-12
US335911 1999-06-18

Publications (1)

Publication Number Publication Date
EP0097701A1 true EP0097701A1 (fr) 1984-01-11

Family

ID=26989942

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19830900377 Withdrawn EP0097701A1 (fr) 1981-12-30 1982-12-13 Dispositif d'entrainement isometrique et isotonique a resistance variable

Country Status (2)

Country Link
EP (1) EP0097701A1 (fr)
WO (1) WO1983002236A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2581552B1 (fr) * 1985-05-13 1988-08-19 Bacoux Lucien Dispositif de programmation pour appareil de musculature
FR2604911B1 (fr) * 1986-10-13 1989-06-02 Merobel Appareil d'entrainement, d'investigation et de reeducation, notamment de la fonction neuro-musculaire

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2022002A (en) * 1934-08-24 1935-11-26 Jacks Louise Marian Appliance for physical culture or exercise purposes
US3167312A (en) * 1962-08-02 1965-01-26 Roger M Blanchard Trampoline type bouncer toy
US3836121A (en) * 1972-06-23 1974-09-17 Transfer Systems Motor-driven hoist with protective braking system
US3885789A (en) * 1974-06-21 1975-05-27 Michael E Deluty Exercising device
US3902480A (en) * 1974-12-02 1975-09-02 Robert J Wilson Electro-mechanical isotonic or isokinetic exercising system
US4010948A (en) * 1975-05-21 1977-03-08 Deluty Michael E Pull type friction exercising device
US4138106A (en) * 1977-08-15 1979-02-06 Micro Circuits Company Weight training apparatus

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8302236A1 *

Also Published As

Publication number Publication date
WO1983002236A1 (fr) 1983-07-07

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Effective date: 19831201