US3608898A - Treadmill with curved axles supporting the belt - Google Patents

Treadmill with curved axles supporting the belt Download PDF

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US3608898A
US3608898A US3608898DA US3608898A US 3608898 A US3608898 A US 3608898A US 3608898D A US3608898D A US 3608898DA US 3608898 A US3608898 A US 3608898A
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axles
frame
wheel
curved
axle
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Evan H Berlin
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EVAN H BERLIN
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EVAN H BERLIN
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    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B22/00Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements
    • A63B22/02Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with movable endless bands, e.g. treadmills
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B22/00Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements
    • A63B22/0015Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with an adjustable movement path of the support elements
    • A63B22/0023Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with an adjustable movement path of the support elements the inclination of the main axis of the movement path being adjustable, e.g. the inclination of an endless band

Abstract

A treadmill utilizing an endless belt which permits a user to run while remaining in one place. Curved axles supporting driving wheels are employed to minimize the number of driving wheels and axles employed. Each axle rotatably supports one wheel at its center and one wheel at each end. These axles are curved in a horizontal plane so that the center wheel is offset from the end wheels.

Description

United States Patent Evan H. Berlin l 19 Dunn Ave., Lake City, Pa. 16423 Appl. No. 38,666

Filed May 19, 1970 Patented Sept. 28, 1971 Inventor TREADMILL WITH CURVED AXLES SUPPORTING THE BELT 4 Claims, 6 Drawing Figs.

ILLS. Cl 272/69 A63!) 23/06 272/69;

[56] References Cited UNITED STATES PATENTS 1,064,968 6/1913 Hagen 272/69 i Primary Examiner-Richard C. Pinkham Assistant Examiner-Richard Dror ABSTRACT: A treadmill utilizing an endless belt which permits a user to run while remaining in one place. Curved axles supporting driving wheels are employed to minimize the number of driving wheels and axles employed. Each axle rotutably supports one wheel at its center and one wheel at each end. These axles are curved in a horizontal plane so that the center wheel is offset from the end wheels.

TREADMILL WITH CURVED AXLES SUPPORTING THE BELT SUMMARY OF THE INVENTION A rectangular frame supports a plurality of transversely extending horizontal axles. These axles have at each end and at the midpoint a separate driving wheel freely rotatable thereabout. Some of the axles as viewed in a horizontal plane are curved intermediate their ends to offset the center wheel from the end wheels. An endless belt freely rotatable in the frame is wrapped around the axles to engage the wheels and to be spaced from the axles. A user runs on top of the belt which rotates with the wheels to enable the user to remain in one place while running. Use of the offset wheels enables greater separation between adjacent axles for a given size of frame over that obtainable when straight parallel axles are used whereby the number of axles and driving wheels is reduced.

BRIEF DESCRIPTION OF THE DRAWINGS In the drawings:

FIG. 1 is a top cutaway view of my invention; FIG. 2 is a cross-sectional end view thereof; FIG. 3 is a detail top view thereof;

FIG. 4 is a detail end view thereof;

FIG. 5 is a cross sectional side view thereof; and FIG. 6 is a perspective view thereof.

DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS Referring now to FIGS. 1-6, a hollow rectangular frame 10 having open top and bottom surfaces is provided at one end with manually adjustable screws 12 to vary the separation between this end and the ground, floor or other supporting surface whereby the frame can be inclined or level. As the angle of inclination is increased, the energy required to operate the apparatus is increased whereby more strenuous exercise is involved. A handle 14 to be used, when desired, as a support by a user is secured to, and extends upward from this one end.

A plurality of spaced horizontal axles having freely rotatable driving wheels 16 at each end extend within the frame between opposite sides. The axles 18 immediately adjacent each end are straight and parallel; all other axles 22 curve in the same direction, as viewed in the horizontal plane, between their ends whereby the midpoint of each axle is equidistantly offset from both ends. (These axles, as viewed in vertical planes, do not curve). An additional driving wheel 24 is secured to the midpoint of each axle and is freely rotatable thereabout. All wheels 16 and 24 are parallel and are coplanar. However, each wheel 24 is offset from the corresponding wheels 16.

An endless belt 26 having top and bottom horizontal surfaces is disposed in the frame and is wrapped about the axles and wheels in such manner as to engage the periphery of the wheels and to be spaced from the axles. The longitudinal direction of rotation of the belt extends transversely to the axles, A user can then run on the structure while remaining in one place in the usual manner utilizing a treadmill.

Were all axles to be straight and parallel, a certain quantity of axles and wheels would be required with a given geometry to provide proper performance regardless of the position of the users feet on the belt. By using curved axles and offset wheels, fewer axles and wheels are required for the same geometry. Note that straight axles 1.8 are used to provide proper clearances adjacent the ends of the frame.

While I have described my invention with particular reference to the drawings such is not to be considered as limiting its actual scope.

Having thus described this invention what is asserted as new 1. Exercise apparatus comprising: a hollow rectangular frame having open top and bottom surfaces; a plurality of horizontal spaced axles extending in spaced horizontally coplanar positions between opposite sides of the frame, at least some of these axles being curved in a horizontal plane whereby the midpoint of each curved axle is in the same horizontal plane, as but is disposed offset and equidistantly spaced from both ends thereof;

a like plurality of pairs of driving wheels, each wheel in the pair being rotatably disposed about a corresponding end of a corresponding axle, all of said wheel pairs being parallel and coplanar;

an additional and like plurality of individual driving wheels parallel to and coplanar with said wheel pairs, each individual wheel being rotatable about the midpoint of the corresponding axle; and

an endless belt having a longitudinal direction of rotation extending transversely to said axles, said belt being wrapped about and in peripheral contact with all of said wheels and spaced from said axles.

2. Apparatus as set forth in claim I wherein others of said axles are straight and parallel.

3. Apparatus as set forth in claim 2. wherein there are two straight axles, each straight axle being disposed adjacent a corresponding end of the frame.

4. Apparatus as set forth in claim 3 further including manually adjustable means secured to one end of said frame to vary the angle of inclination of said frame with respect to the horizontal.

Claims (4)

1. Exercise apparatus comprising: a hollow rectangular frame having open top and bottom surfaces; a plurality of horizontal spaced axles extending in spaced horizontally coplanar positions between opposite sides of the frame, at least some of these axles being curved in a horizontal plane whereby the midpoint of each curved axle is in the same horizontal plane, as but is disposed offset and equidistantly spaced from both ends thereof; a like plurality of pairs of driving wheels, each wheel in the pair being rotatably disposed about a corresponding end of a corresponding axle, all of said wheel pairs being parallel and coplanar; an additional and like plurality of individual driving wheels parallel to and coplanar with said wheel pairs, each individual wheel being rotatable about the midpoint of the corresponding axle; and an endless belt having a longitudinal direction of rotation extending transversely to said axles, said belt being wrapped about and in peripheral contact with all of said wheels and spaced from said axles.
2. Apparatus as set forth in claim 1 wherein others of said axles are straight and parallel.
3. Apparatus as set forth in claim 2 wherein there are two straight axles, each straight axle being disposed adjacent a corresponding end of the frame.
4. Apparatus as set forth in claim 3 further including manually adjustable means secured to one end of said frame to vary the angle of inclination of said frame with respect to the horizontal.
US3608898D 1970-05-19 1970-05-19 Treadmill with curved axles supporting the belt Expired - Lifetime US3608898A (en)

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Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4066257A (en) * 1975-11-07 1978-01-03 Moller Bynum W Treadmill exercising device
US4616822A (en) * 1984-08-01 1986-10-14 Trulaske James A Exercise treadmill
US5203800A (en) * 1991-10-11 1993-04-20 Meredith Jeffrey O Treadmill with peripheral belt support
US5330401A (en) * 1993-03-02 1994-07-19 Orbiter Royalty Trust Suspension system for treadmill with resilient surface
US5336145A (en) * 1991-08-30 1994-08-09 Keiser Dennis L Apparatus having a movable load bearing surface
US6974404B1 (en) 1996-01-30 2005-12-13 Icon Ip, Inc. Reorienting treadmill
US7192388B2 (en) 1997-10-28 2007-03-20 Icon Health & Fitness, Inc. Fold-out treadmill
NO334911B1 (en) * 2013-09-11 2014-07-07 Olav Sandnes An active gåplattform and system for walking in place
US9186539B2 (en) 2013-10-17 2015-11-17 Paul G. Kahmann Walking slide mill
US9968823B2 (en) 2015-08-28 2018-05-15 Icon Health & Fitness, Inc. Treadmill with suspended tread belt
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
US10258828B2 (en) 2015-01-16 2019-04-16 Icon Health & Fitness, Inc. Controls for an exercise device
US10272317B2 (en) 2016-03-18 2019-04-30 Icon Health & Fitness, Inc. Lighted pace feature in a 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
US10343017B2 (en) 2016-11-01 2019-07-09 Icon Health & Fitness, Inc. Distance sensor for console positioning
US10376736B2 (en) 2016-10-12 2019-08-13 Icon Health & Fitness, Inc. Cooling an exercise device during a dive motor runway condition
US10426989B2 (en) 2014-06-09 2019-10-01 Icon Health & Fitness, Inc. Cable system incorporated into a treadmill
US10433612B2 (en) 2014-03-10 2019-10-08 Icon Health & Fitness, Inc. Pressure sensor to quantify work
US10441844B2 (en) 2016-07-01 2019-10-15 Icon Health & Fitness, Inc. Cooling systems and methods for exercise equipment
US10471299B2 (en) 2016-07-01 2019-11-12 Icon Health & Fitness, Inc. Systems and methods for cooling internal exercise equipment components
US10493349B2 (en) 2017-03-16 2019-12-03 Icon Health & Fitness, Inc. Display on exercise device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1064968A (en) * 1911-10-20 1913-06-17 Claude Lauraine Hagen Training-machine.

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1064968A (en) * 1911-10-20 1913-06-17 Claude Lauraine Hagen Training-machine.

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4066257A (en) * 1975-11-07 1978-01-03 Moller Bynum W Treadmill exercising device
US4616822A (en) * 1984-08-01 1986-10-14 Trulaske James A Exercise treadmill
US5336145A (en) * 1991-08-30 1994-08-09 Keiser Dennis L Apparatus having a movable load bearing surface
US5203800A (en) * 1991-10-11 1993-04-20 Meredith Jeffrey O Treadmill with peripheral belt support
US5330401A (en) * 1993-03-02 1994-07-19 Orbiter Royalty Trust Suspension system for treadmill with resilient surface
US6974404B1 (en) 1996-01-30 2005-12-13 Icon Ip, Inc. Reorienting treadmill
US7540828B2 (en) 1996-01-30 2009-06-02 Icon Ip, Inc. Reorienting treadmill
US7192388B2 (en) 1997-10-28 2007-03-20 Icon Health & Fitness, Inc. Fold-out treadmill
US10279212B2 (en) 2013-03-14 2019-05-07 Icon Health & Fitness, Inc. Strength training apparatus with flywheel and related methods
NO334911B1 (en) * 2013-09-11 2014-07-07 Olav Sandnes An active gåplattform and system for walking in place
WO2015037999A1 (en) * 2013-09-11 2015-03-19 Olav SANDNES An active walking platform and a system for walking in place
US9186539B2 (en) 2013-10-17 2015-11-17 Paul G. Kahmann Walking slide mill
US10188890B2 (en) 2013-12-26 2019-01-29 Icon Health & Fitness, Inc. Magnetic resistance mechanism in a cable machine
US10433612B2 (en) 2014-03-10 2019-10-08 Icon Health & Fitness, Inc. Pressure sensor to quantify work
US10426989B2 (en) 2014-06-09 2019-10-01 Icon Health & Fitness, Inc. Cable system incorporated into a treadmill
US10258828B2 (en) 2015-01-16 2019-04-16 Icon Health & Fitness, Inc. Controls for an exercise device
US9968823B2 (en) 2015-08-28 2018-05-15 Icon Health & Fitness, Inc. Treadmill with suspended tread belt
US10293211B2 (en) 2016-03-18 2019-05-21 Icon Health & Fitness, Inc. Coordinated weight selection
US10272317B2 (en) 2016-03-18 2019-04-30 Icon Health & Fitness, Inc. Lighted pace feature in a treadmill
US10252109B2 (en) 2016-05-13 2019-04-09 Icon Health & Fitness, Inc. Weight platform treadmill
US10441844B2 (en) 2016-07-01 2019-10-15 Icon Health & Fitness, Inc. Cooling systems and methods for exercise equipment
US10471299B2 (en) 2016-07-01 2019-11-12 Icon Health & Fitness, Inc. Systems and methods for cooling internal exercise equipment components
US10376736B2 (en) 2016-10-12 2019-08-13 Icon Health & Fitness, Inc. Cooling an exercise device during a dive motor runway condition
US10343017B2 (en) 2016-11-01 2019-07-09 Icon Health & Fitness, Inc. Distance sensor for console positioning
US10493349B2 (en) 2017-03-16 2019-12-03 Icon Health & Fitness, Inc. Display on exercise device

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