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US3411776A - Reciprocating friction-type exercising device - Google Patents

Reciprocating friction-type exercising device Download PDF

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Publication number
US3411776A
US3411776A US482646A US48264665A US3411776A US 3411776 A US3411776 A US 3411776A US 482646 A US482646 A US 482646A US 48264665 A US48264665 A US 48264665A US 3411776 A US3411776 A US 3411776A
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United States
Prior art keywords
rope
shaft
hub
slots
sleeve
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Expired - Lifetime
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US482646A
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English (en)
Inventor
Fullerton Edgar E Holkesvick
Hudnall John
Robert W Adams
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Individual
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Individual
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Publication date
Priority claimed from US116393A external-priority patent/US3197204A/en
Application filed by Individual filed Critical Individual
Priority to US482646A priority Critical patent/US3411776A/en
Priority to BE722490A priority patent/BE722490A/xx
Application granted granted Critical
Publication of US3411776A publication Critical patent/US3411776A/en
Priority to US00077313A priority patent/US3717339A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • A63B21/012—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices using frictional force-resisters
    • A63B21/018—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices using frictional force-resisters including a rope or other flexible element moving relative to the surface of elements

Definitions

  • An exercising device adapted to be suspended from a 1 support and which includes an elongated shaft of a length to receive several turns of rope therearound. Spaced-apart apertures guide a length of rope onto and off of the shaft. A length of rope extends through one aperture, at least partially around the shaft and then out through the other aperture, the length of rope having a handle at each end whereby the rope can be moved back and forth through the device in sliding frictional engagement with the shaft.
  • the present invention relates generally to the physical conditioning art and more particularly to a novel exercising device which is especially suitable for home use.
  • one embodiment of the present invention comprises a body member which includes an elongated cylindrical shaft having hub portions at each end there of. Axially extending passageways are provided in the hub portions so that a length of rope can be inserted through a passageway in one hub portion, thence around the shaft, and then out through a passageway in the other hub portion, or, the rope can be doubled back and returned in a similar fashion through diametrically opposed passageways in the hub portion. In this manner the rope is in sliding frictional engagement with the shaft whereby the user must exert a certain amount of force, and thereby exercise various muscles of the body, in pulling the rope through the device.
  • Means are provided for supporting the device from adjacent an end or from adjacent the center thereof so that the rope can be pulled in a continuous manner, or alternately back and forth.
  • means are also provided for easily and quickly adjusting the number of turns of rope around the shaft by having one hub portion rotatable relative to the other hub portion.
  • Another object is to provide such a device which can 3,411,776 Patented Nov. 19, 1968 ice be easily and quickly adjusted to meet the individual requirements of each user.
  • a further object is to provide a novel exercising device which can be employed for all types of conventional exercises, such as those employing pushing, pulling, and bending.
  • Another object is to provide such a device which provides a continuous resistance of constant magnitude throughout its range of motion, as differentiated from a spring or similar type of resilient member where the resistance varies depending on the amount of extension.
  • Yet another object is to provide a novel exercising device which is compact in size and light in weight whereby it can be used in almost any type or size of room in a home, and which can be easily carried when traveling.
  • FIG. 1 is a perspective view of a novel exercising device constructed in accordance with the teachings of the present invention, shown in controlled adjustable position.
  • FIG. 2 is an enlarged vertical sectional view taken on the line 22 in FIG. 1;
  • FIG. 3 is a horizontal sectional view taken on the line 33 in FIG. 2;
  • FIG. 4 is a vertical sectional view taken on the line 44 in FIG. 2, ShOWing the device in the freely rotatable position;
  • FIG. 5 is a horizontal sectional view taken on the line 55 in FIG. 4;
  • FIG. 6 is a front elevational view, partially in cross section, showing a modified exercising device embodying the same inventive concept but lacking the full adjustability of the embodiment shown in FIGS. 1 through 5;
  • FIG. 7 is an end view of the modified construction taken on the line 7-7 in FIG. 6;
  • FIG. 8 is a vertical sectional view taken on the line 88 in FIG. 6;
  • FIG. 9 is a front elevational view, partially in cross section, illustrating another modified construction.
  • FIG. 10 is a fragmentary horizontal sectional view taken on the line 10-10 in FIG. 9;
  • FIG. 11 is a front elevational view, partially in cross section, illustrating yet another modified construction
  • FIG. 12 is a front elevational view, partially in cross section, illustrating a very basic or simplified exercising device embodying the t achings of the present invention
  • FIG. 13 is a perspective view, on a reduced scale, showing a device of the tpe illustrated in FIG. 9 provided with a length of rope with operating handles;
  • FIG. 14 is a perspective view, also on a reduced scale, showing the device of FIG. 11 provided with a length of rope which is pulled continuously in one dir ction during the operation of the device.
  • FIGS. 1 through 5 16 indicates generally an exercising device constructed in accordance with the teachings of the present invention, which includes a body member 18 and a sleeve member 20 removably and adjustably mounted thereon.
  • the body member 18 contains an elongated shaft portion 22, preferably of cylindrical cross section, with an upper hub portion 24 with an outer peripheral surface 25 adjacent the upper end thereof, said hub portion being provided with two diametrically opposed, vertically extending passageways or slots 26 in the outer peripheral surface which have the bottom or inner ends thereof flared outwardly inv an arc as at 28, for a purpose to appear.
  • a plate-like tongue portion 30 projects upwardly above the upper hub portion and contains an aperture 32, the lower part of said aperture coinciding with a groove 34 contained in the upper or end surface of the hub portion and interconnecting the slots 26.
  • the tongue could be provided with two separate apertures, one adjacent the upper end thereof and one in registry with the groove 34, but it is preferably from a machining standpoint to employ a Single elongated aperture.
  • the lower end of the shaft 22 contains a stud portion 36 of reduced diameter which provides a shoulder 38 between it and the shaft 22.
  • a lower hub member 40 Slidably and rotatably mounted on the stud portion 36 is a lower hub member 40 with an outer peripheral surface 42 which also contains two diametrically opposed passageways or slots 44 in said outer surface, the upper or inner ends of the slots 44 being flared outwardly in an arc as at 46 in a manner similar to the construction of the slots 26.
  • a disc-like stop member 48 is fastened to the lower end of the stud portion 36 by a screw 50, thereby limiting the vertical movement of the lower hub member 40 between an upper position in which it abuts the shoulder 28 and a lower position in which it abuts the stop member 48.
  • the sleeve member 20 has an inside diameter which is only slightly greater than the outside diameter of the hub portion 24 and the hub member 40, and is of a length to extend between the outer ends of the hubs when the lower hub member is in the upper position as shown in FIG. 2.
  • the lower of the sleeve member 20 is removably fastened to the lower hub member 40 as by means of a machine screw 52.
  • Formed in the upper end of the sleeve member 20 are a plurality of circumferentially spaced, circular openings 54 (FIG. 2) which are adapted to receive a detent 56 with a rounded outer end surface which is positioned in a socket 58 (FIG. 3) contained in a flattened surface 59 of the upper hub portion 24 and urged into the sleeve-engaging direction by a coiled spring 60.
  • the lower hub member 40 can be moved to the lower or free position (FIGS. 4 and in which the openings 54 in the upper end of the sleeve member are below the detent 56, whereby the latter is in free sliding engagement with the smooth inner surface of the sleeve member.
  • the free rotation can be achieved with the lower hub member in either the upper or the lower position.
  • the illustrated construction is preferred because otherwise the sleeve member would project upwardly adjacent the tongue portion 30 during the free rotation operation.
  • a length of rope 62 could be inserted upwardly through one of the slots 44 in the lower hub member 40, through one of the slots 26 in the upper hub portion 24, through the groove 34, and thence downwardly through the other slots 26 and 44.
  • the sleeve member 20 could then be rotated the desired number of turns, or portions of a turn, with the bottom hub member in either the upper or lower position so as to cause the rope to be wrapped around the shaft 22 the desired number of turns as shown in FIG. 2.
  • this manner of inserting the rope into the device would have to be followed if the openings 26 and 44 were enclosed passageways instead of slots which are open to the outer surfaces of the hubs. This type of construction would function satisfactorily but would not have the additional advantages contained in the preferred construction.
  • the rope is easily and quickly installed in the device by first removing the screw 52, slipping the sleeve member 20 from the body member 18, inserting the rope through the aperture 30 and then dropping both ends of the rope downwardly into the grooves 26 and 44 on the opposite sides of the body member. Thereafter, the sleeve members 20 can be quickly replaced on the body member and the screw 52 returned to its securing position. The sleeve member 20 and the lower hub member 40 can then be rotated the desired number of turns or portions of a turn, as previously described.
  • the exerciser 16 may be suspended from a support such as a hook or peg, by means of the aperture 32, or, a special strap 59 with a metal ring 61 at one end and a doubled-back portion 63 at the other end thereof can be inserted through the aperture 32 in the manner shown in FIG. 1 and the part of the strap centaining the portion 63 placed between the top or side of a door and the door frame adjacent thereto.
  • the operator can then grasp one end of the rope 62 projecting from the bottom of the device, and, by pulling on it in a hand-ovenhand fashion, exercise certain muscles of the body.
  • the outer surface of the shaft portion 22 and the inner surfaces of the slots 26 and 44 are preferably polished to reduce the amount of wear of the rope resulting from the operation of the device.
  • the arcuate surfaces 28 and 46 at the inner ends of the slots 26 and 44, respectively conform to the shape of the rope 62 which is twisted around the shaft portion 22 so as not to adversely affect the frictional drag on the rope or cause an undue amount of wear, as would result if sharp corners "were used.
  • the device provides a continuous resistance of constant magnitude (per setting) throughout the entire range of motion.
  • the exercising device is positioned above the users head, the muscles which are exercised during a hand-overhand pulling of the rope through the device as previously described would be the same as those exercised by a handover-hand climbing of a fixed rope.
  • the device were on a level with the user as the latter turned away from it, the result would be somewhat similar to that achieved by pulling on springs or by lifting weights actuated through a pulley arrangement.
  • the :user can grasp the other end of the rope and pull it thorugh in the opposite direction.
  • Another manner of using the device is to pull alternately on first one end of the rope and then on the other end thereof so as to move the rope back and forth through the device.
  • the amount of friction, and therefore the amount of force required to pull the rope through the device can be varied at will by merely rotating the sleeve member 20 and the lower hub member 40 relative to the shaft 22 and the upper hub portion 24. Also, as previously mentioned, this can be achieved either a notch at a time as when the lower hub member 40 is in the upper position, or by one or more complete turns as when the lower hub member 40 is in the lower position. Thus, a user may wish to start with a relatively low frictional resistance and gradually increase the amount of force required to pull the rope through the device, as by rotating the sleeve one notch each day.
  • FIG. 6 Another embodiment of the present invention, which is shown in FIG. 6, is somewhat more simple than the device described above, and although it has a certain amount of adjustability, it is not as fully adjustable as the previously described embodiment.
  • the modified construction includes a shaft 64 which has hub portions 66 and 68 at the opposite ends thereof, the hub portion 66 being preferably provided with two axially extending diametrically opposed slots 70, and the hub portion 68 being preferably provided with a single axially extending slot 72. It is preferred that the slot 72 be in axial alignment with one of the slots 70 for ease in forming.
  • the slots could be replaced with enclosed passageways or holes but the slot construction is by far the preferred one for obvious reasons.
  • the inner ends of the slots 70 are flared outwardly in an arcuate manner as at 74, and the inner end of the slot 72 is flared outwardly as at 76 in the same manner.
  • a plate-like L-shaped flange or tongue 78 Fastened to the end face of the hub portion 68 is a plate-like L-shaped flange or tongue 78 which contains a first aperture 80- in axial alignment with the shaft 64, and a second "aperture -82 approximately midway between the hub portions 66 and 68.
  • the tongue 78 includes a guide portion 82' which projects inwardly over the outer peripheral surface of the hub portion 68 for a purpose to appear.
  • the hub portion 66 contains a recess '84 in a flattened area which receives a spring-biased detent 86 which is similar in construction to the one previously described.
  • a tubular sleeve member 88 which includes a slot 90 at one end thereof and an aperture 92 at the other end, preferably in axial alignment with the slot 90.
  • the slot 92 is of a width to receive the guide portion 82' of the flange, and the length of the sleeve member is such that when it is moved to the right so as to fully engage the guide portion in the slot (FIG. 6), the aperture 92 is in alignment with the detent 86 and the sleeve member is maintained in position.
  • the detent 86- is depressed against the action of the spring, and the sleeve 88 removed from the body member.
  • the rope 62 is positioned in the slot 72, wrapped around the shaft 64 the desired number of times, and then positioned in either of the slots 70.
  • the sleeve '88 is slipped over the hub portions 66 and 68 with the slot 90 in alignment with the guide portion 82', and, when the sleeve is fully on the body member, the detent 86 is engaged in the aperture 92.
  • the device If the person desires to use the device in such a manner that the rope 62 is pulled through it in one direction, it would be hung from a support by means of the aperture 80. On the other hand, if the rope is to be pulled back and forth, first with one arm and then with the other arm, the device would be supported by means of the aperture 82.
  • the detent 86 can be depressed and the sleeve member 88 quickly removed from the body member and the rope removed from the slot70' and either unwrapped from or wrapped further around the shaft 64. Thereafter, the sleeve member 88 is reinserted on the body member as previously described.
  • the two diametrically opposed slots 70 in the hub portion 66 provide for a halfturn adjustment, and, if a quarter-turn adjustment were desired, a third slot could be provided between the two diametrically opposed slots 70.
  • the arcuate surfaces 74 and 7 6 permit the rope '62 to be twisted around the shaft 64 without causing undue wear or additional pressure at the edges of the slot.
  • FIGS. 9 and 10 A further modified construction, shown in FIGS. 9 and 10, is somewhat similar to the construction shown in FIG. 6 in that it includes a shaft 94 with said hub portions 96 and 98 at each end thereof, one of which has a single slot 100 and the other of which is provided with two diametrically opposed slots 101.
  • This modification is also provided with a spring-biased detent 102 which is similar in construction to the one previously described.
  • a sleeve portion 104 with a double-flanged portion 106 is formed from sheet material which is wrapped around the hub portions 96 and 98 and the free ends thereof fastened together with rivets 108.
  • An opening 110 is formed in the two face-to-face flange portions and a two-piece annular eye member 112 swaged together to further fasten together the two-piece flange portion 106.
  • the sleeve portion 104 is also provided with a small aperture 114 at the bottom thereof to receive the detent 102 and maintain the sleeve portion on the body member.
  • a rope is employed with the second modified construction in the same manner as previously described with reference to the modification shown in FIG. 6. Also, it will be readily apparent that the sleeve portion 104 can be easily and quickly removed from the body member by depressing the detent 102 whereby the position of the rope can be changed relative to the number of turns on the shaft 94.
  • a third embodiment, shown in FIG. 11, is very similar to the construction shown in FIG. 9 in that a sleeve portion 116 and a flange portion 118 are formed from sheet material which is wrapped around the hub portion and riveted together at 120.
  • a separate plate-like supporting bracket 122 is fastened to the flange portion 118 by the rivets 120, said supporting bracket containing an elongated arcuate slot 124. It will be noted that when the device is supported on a stud or hook which projects through the slot 124, tilting the device will cause the stud or hook to slide to either one end or the other of the slot, depending upon which end of the rope is being pulled, so that the rope will extend from the device in substantial axial alignment therewith.
  • FIG. 12 A fourth modification and slightly different embodiment of the same invention is shown in FIG. 12. It will be noted that in all of the embodiments previously described, each was provided with a sleeve member to prevent the rope from escaping from the slot, which has been mentioned as the preferred construction. In the embodiment shown in FIG. 12 a separate sleeve is not necessary and therefore it is a very simple and economical construction. Thus, it includes a shaft 126 which has two hub portions 128 and 130 formed integral therewith at the ends thereof. The hub portion 128 has a single axially extending passageway 132 therethrough, and the hub portion 130 has a similar passageway 134 in alignment with the passageway 132.
  • the inner ends of the passageway are preferably flared outwardly in the same manner as previously described in order to prevent the rope from binding on the corners.
  • Diametrically opposite to the aforementioned passageways are two tapped recesses 136 and 138 which are also in alignment and which receive machine screws 140 and 142, respectively. These screws removably fasten a wire-like arcuate supporting member 144 to the hub portions approximately from the passageways 132 and 134.
  • a rope 146 is inserted through one passageway, wrapped around the shaft the desired number of times, and then inserted through the other passageway.
  • the device can then be hung from a support such as a door knob or the like (not shown) by means of the support member 144, and the device used in the manner previously described.
  • a support such as a door knob or the like (not shown) by means of the support member 144, and the device used in the manner previously described.
  • the modification shown in FIG. 12 has somewhat the same action as the modification shown in FIG. 11 in that the arcuate supporting member 144 permits the device to pivot about the supporting stud or door knob depending upon which end of the rope is being pulled.
  • FIG. 13 shows the device of FIG. 9 provided with a relatively short length of rope 148 which has stirrup-like handles 150 and 152 fastened to the ends thereof, whereby the rope can be moved back and forth by pulling first on one handle and then on the other.
  • FIG. 14 shows the device of FIG.
  • the gripping members 156 are preferably made of a soft resilient material such as rubber or one of the synthetic foams such as polyurethane or styrofoam, and are generally cylindrical in shape with a longitudinal slot for receiving the rope 154.
  • the slots are preferably larger than the diameter of the rope when the gripping members are in the free position so that the user can move his hands, one in front of the other, with the gripping members positioned therein.
  • the person using the device could wear leather gloves to protect his hands instead of using the gripping members 156.
  • the amount of resistance at any one setting is substantially constant so as to require a continuous pull of constant magnitude throughout the range of movement.
  • the exercising device described herein is also of universal application in that it can be employed to exercise the same muscle which would be used in climbing a rope, pulling springs, lifting weights actuated through pulleys, and the like. It is to be understood that the foregoing description and the accompanying drawings have been given only by way of illustration and example and that changes and alterations in the present disclosure which will be readily apparent to one skilled in the art are contemplated as within the scope of the present invention.
  • An exercising device comprising:
  • a body member including a shaft with opposed ends and a hub portion adjacent each end thereof;
  • each hub portion positioned radially outwardly of the shaft, said passageways being in axial alignment with each other;
  • support means connected to said fastening means for suspending the device from a support.
  • An exercising device comprising:
  • a body member including a shaft with opposed ends and a hub portion adjacent each end thereof;
  • a sleeve member removably mounted on the body member so as to at least partially cover the slots in both hub portions, said sleeve being formed from a sheet of material which is wrapped around said body member with the ends thereof fastened together to provide a flange portion;
  • An exercising device comprising:
  • a body member including a shaft with opposed ends and a hub portion adjacent each end thereof;
  • a sleeve member removably mounted on the body member so as to at least partially cover the slots in both hub portions, said sleeve being formed from a sheet of material which is wrapped around said body member with the ends thereof fastened together to provide a flange portion;
  • bracket member with an arcuate slot therein fastened to said flange portion for suspending the sleeve member from a support.
  • An exercising device comprising:
  • a body member including a shaft with opposed ends and a hub portion adjacent each end thereof;
  • each hub portion outwardly of the shaft, said slots being of a size to slidably receive the rope-like member, said rope-like member extending through the slots and wrapped around the shaft a selected number of turns;
  • removable means covering at least a portion of each slot to prevent the rope from moving outwardly from the slots.
  • An exercising device comprising:
  • a body member including a shaft with opposed, ends and a hub portion adjacent each end thereof;
  • each hub portion outwardly of the shaft, said slots being of a size to slidably receive the rope-like member, said rope-like member extending through the slots and wrapped around the shaft a selected number of turns;
  • a rigid sleeve member removably mounted on the body member so as to at least partially cover the slots in both hub portions.
  • An exercising device comprising:
  • a body member including a shaft with opposed ends and a hub portion adjacent each end thereof;
  • each hub portion outwardly of the shaft, said slots being of a size to slidably receive the rope-like member, said rope-like member extending through the slots and wrapped around the shaft a selected number of turns;
  • an L-shaped supporting bracket connected to the end of one of said hub portions and including a portion which extends transversely of the body member and a portion which extends substantially parallel to the shaft of the body member;
  • removable means covering at least a portion of each slot to prevent the rope-like member from moving outwardly from the slots.
  • An exercising device comprising in combination:
  • a body member including an elongated shaft portion with a smooth outer surface and with a hub portion adjacent each end of the shaft portion, the smooth shaft portion being of a length to receive at least several turns of rope therearound;
  • each hub portion positioned radially outwardly of the shaft and being of a size to slidably receive a length of rope passing therethrough;
  • An exercising device comprising in combination:
  • a body member including an elongated shaft portion with a smooth outer surface and with a hub portion adjacent each end of the shaft portion, the smooth shaft portion being of a length to receive at least two turns of rope therearound;
  • each hub portion of a size to slidably receive a length of rope positioned therein;
  • handle means adjacent each of the free ends of the rope.
  • An exercising device comprising in combination:
  • a body member including an elongated shaft portion with a smooth outer surface and with a hub portion adjacent each end of the shaft portion, the shaft portion being of a length to receive at least two turns of rope therearound;
  • each hub portion positioned radially outwardly of the shaft and being of a size to slidably receive a length of rope positioned therein;
  • a length of rope having two free ends extending through a slot in one hub portion, around said shaft portion in contact with the smooth outer surface thereof, and thence through a slot in the other hub portion;
  • An exercising device comprising in combination:
  • a body member including an elongated shaft portion of a length to receive several turns of rope therearound;
  • spaced-apart guide means associated with the body member for guiding a length of rope onto and off of said shaft portion
  • an elongated shaft axially positioned in said housing and being of a length to receive several turns of rope therearound;
  • a handle member attached to each of said free ends of rope for pulling said length of rope back and forth through said housing in sliding frictional engagement with the shaft.
  • An exercising device as defined in claim 11 which includes attachment means extending therefrom for re- UNITED STATES PATENTS 10/1890 Zein et al. 18865.3 8/1898 Lauritsen 242-154 RICHARD C. PINKHAM, Primary Examiner.

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  • 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)
  • Ropes Or Cables (AREA)
US482646A 1961-06-12 1965-06-09 Reciprocating friction-type exercising device Expired - Lifetime US3411776A (en)

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Application Number Priority Date Filing Date Title
US482646A US3411776A (en) 1961-06-12 1965-06-09 Reciprocating friction-type exercising device
BE722490A BE722490A (xx) 1961-06-12 1968-10-18
US00077313A US3717339A (en) 1961-06-12 1970-10-01 Method of unassisted frictionresistive exercising

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US116393A US3197204A (en) 1961-06-12 1961-06-12 Exercising device
US482646A US3411776A (en) 1961-06-12 1965-06-09 Reciprocating friction-type exercising device

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US3411776A true US3411776A (en) 1968-11-19

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US482646A Expired - Lifetime US3411776A (en) 1961-06-12 1965-06-09 Reciprocating friction-type exercising device

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Cited By (29)

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US3519269A (en) * 1968-02-19 1970-07-07 Joe R Howlett Pulling friction type exercising device
US3525118A (en) * 1968-08-05 1970-08-25 Gerard J Viollet Compressed air vacuum and blow gun apparatus
US3608900A (en) * 1969-04-09 1971-09-28 Harold Dee Welch Frictional resistant exercising device
US3782722A (en) * 1972-06-12 1974-01-01 R Webb Variable friction-resistance rope exercising device
US3826480A (en) * 1971-08-16 1974-07-30 R Johnson Multi-functional frictional-resistance apparatus
US4040627A (en) * 1976-07-22 1977-08-09 Useldinger Ronald E Friction type exercising device with improved friction setting mechanism
US4293127A (en) * 1978-12-18 1981-10-06 Mono-Kinetics Mono-kinetic exercise device
US4560160A (en) * 1984-06-18 1985-12-24 Smith Brian C Exercise device for swimmers
US5318493A (en) * 1987-07-27 1994-06-07 Brady Dennis L Exercise apparatus
US5352172A (en) * 1993-10-25 1994-10-04 Kiyoshi Suzaki Rope exerciser
US5656004A (en) * 1996-11-18 1997-08-12 Fitness Motivation Institute Of America Friction type exercising device with force gauge and shoulder mounting screw
US6102837A (en) * 1996-08-12 2000-08-15 Vital Visions, Inc. Rope exercise device
US20060116252A1 (en) * 2003-04-09 2006-06-01 Hetrick Randal A Exercise device including adjustable, inelastic straps
US20080076642A1 (en) * 2003-04-09 2008-03-27 Randal Hetrick Combination grip for an exercise device
US20090075794A1 (en) * 2007-09-17 2009-03-19 Randal Hetrick Combination grip for an exercise device
US20090075788A1 (en) * 2007-09-17 2009-03-19 Randal Hetrick Inelastic exercise device having a limited range
US20090075787A1 (en) * 2007-09-17 2009-03-19 Randal Hetrick Exercise device having a door anchor
US20090075790A1 (en) * 2007-09-17 2009-03-19 Randal Hetrick Combination anchor for an exercise device
US20090075789A1 (en) * 2007-09-17 2009-03-19 Randal Hetrick Exercise device having inelastic straps and interchangeable parts
US10188890B2 (en) 2013-12-26 2019-01-29 Icon Health & Fitness, Inc. Magnetic resistance mechanism in a cable machine
US10252109B2 (en) 2016-05-13 2019-04-09 Icon Health & Fitness, Inc. Weight platform treadmill
US10279212B2 (en) 2013-03-14 2019-05-07 Icon Health & Fitness, Inc. Strength training apparatus with flywheel and related methods
US10293211B2 (en) 2016-03-18 2019-05-21 Icon Health & Fitness, Inc. Coordinated weight selection
US10426989B2 (en) 2014-06-09 2019-10-01 Icon Health & Fitness, Inc. Cable system incorporated into a treadmill
US10441840B2 (en) 2016-03-18 2019-10-15 Icon Health & Fitness, Inc. Collapsible strength exercise machine
US10449416B2 (en) 2015-08-26 2019-10-22 Icon Health & Fitness, Inc. Strength exercise mechanisms
US10661114B2 (en) 2016-11-01 2020-05-26 Icon Health & Fitness, Inc. Body weight lift mechanism on treadmill
US10940360B2 (en) 2015-08-26 2021-03-09 Icon Health & Fitness, Inc. Strength exercise mechanisms
US20220339518A1 (en) * 2021-02-17 2022-10-27 Logan Paulsen Adjustable resistance apparatus and related methods

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