Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.

Patents

  1. Advanced Patent Search
Publication numberUS3659845 A
Publication typeGrant
Publication date2 May 1972
Filing date10 Apr 1970
Priority date10 Apr 1970
Publication numberUS 3659845 A, US 3659845A, US-A-3659845, US3659845 A, US3659845A
InventorsQuinton Wayne E
Original AssigneeQuinton Instr
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Exercise treadmill and belt support apparatus
US 3659845 A
Abstract
A simplified treadmill and belt support used for exercise purposes and for use as part of an ergometric system. An endless belt is driven over a support surface composed of a fabric such as canvas which is impregnated with wax. A suitable drive assembly causes continuous movement of the belt.
Images(1)
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

United States Patent Quinton 51 May2, 1972 [54] EXERCISE TREADMILL AND BELT SUPPORT APPARATUS 72] Inventor: Wayne E. Quinton, Seattle, Wash.

[73] Assignee: Quinton Instrument Company, Seattle,

Wash.

[22] Filed: Apr. 10, 1970 21 Appl. No.: 27,287

[52] U.S. Cl 272/69, 198/184 [51] Int. Cl. ..A63b 23/06 [58] Field of Search ..l98/l84; 272/69, 56.5 SS

[56] References Cited UNITED STATES PATENTS Laurie ..l98/l84 2,558,759 6/1951 Johnson ..272/56.5 SS 3,356,367 12/1967 Tewksbury. ..272/69 3,518,985 7/1970 Quinton Primary Examiner-Richard C. Pinkham Assistant ExaminerR. T. Stouffer Attorney-Christensen, Sanborn & Matthews 5 7] ABSTRACT A simplified treadmill and belt support used for exercise purposes and for use as part of an ergometric system. An endless belt is driven over a support surface composed of a fabric such as canvas which is impregnated with wax. A suitable drive assembly causes continuous movement of the belt.

11 Claims, 3 Drawing Figures Patented May 2, 1912 3,659,845

' INVENTOR. WA V/VE E. QU/N T ON Wm/W EXERCISE TREADMILL AND BELT SUPPORT APPARATUS Various types of ergometric systems are in use at the present time. Treadmills having a moving endless belt are widely used in such systems as well as in connection with exercise programs in general. In such treadmill assemblies an endless belt is driven at a selected speed so that an individual on the belt is forced to move at the rate determined by belt movement. Various types of treadmill assemblies are available with numerous arrangements being provided to support the belt beneath the feet of the user. The power required to drive the belt is dependent on the frictional forces involved and thus most treadmills utilize relatively expensive roller and bearing assemblies beneath the section of belt where the user walks or runs. It would be desirable to have a system wherein belt friction remains low without going to the expense of rollers or other similar arrangements.

It is thus an object of the present invention to provide a treadmill assembly having an improved support surface for the endless belt thereof.

Another object of the present invention is to provide a treadmill assembly utilizing an improved support surface for the endless belt and wherein such support surface requires a minimum of maintenance.

An additional object of the present invention is to provide a low cost support surface for the belt of a treadmill exercise apparatus.

The above and additional advantages are achieved through use of a system wherein a material such as canvas having a relatively rough surface is impregnated with a lubricant such as wax and is positioned beneath the portion of the endless belt walked upon by the user. The impregnation of the material is preferably done through the application of heat to cause the wax to melt and flow into the material. It has been found that if the amount of wax used is controlled so that the resultant composite material made of cloth and wax is irregular, the frictional forces involved are reduced.

The above and additional advantages and objects of the invention will be more clearly understood from the following description when read with reference to the accompanying drawings wherein,

FIG. 1 is a perspective view of an exercise treadmill assembly embodying the present invention.

FIG. 2 is a sectional side view of the belt and support apparatus illustrated in FIG. 1.

FIG. 3 is a greatly enlarged cross-sectional view of the belt and support material located therebeneath.

Turning now to the drawings it will be seen that the inventive concepts are incorporated in a treadmill assembly having an endless belt which passes around the end rollers 11 and 12 supported on shafts 11A and 12A. The roller 12 is driven at a selected speed by a suitable drive mechanism (generally an electric motor and gear system) of the type which per se is well known in the art. A control panel 13 permits the user to select the speed at which the belt 10 is driven. The portion of the belt indicated at 10A is supported by the upper flat portion 14A of the support frame 14 which carries the shafts 11A and 12A. It will be seen that when the equipment is in use with a person walking or running on the belt, the upper portion of the belt 10A will be repeatedly impacted against the support surface 14. As the belt is driven the weight of the individual then continues to press the belt 10 against the supporting surface located beneath the belt. Frictional forces between the belt 10A and the support surface tend to generate heat which has in the past created various types of problems unless elaborate bearing and support systems are provided.

In accordance with the teachings of the present invention the fiat support surface 14A is covered by a composite structure illustrated as being made of a rectangular piece of plywood 18 having a rough textured cloth material such as canvas 19 adhered thereto. In FIG. 3 the cloth 19 is held to the wood 18 by any suitable glue 20. The portion of the canvas surface 19 over which the belt 10 runs is impregnated with a suitable wax 21. Carnauba wax has been found to work well.

The plywood 18 can be held to the steel frame 14 in any suitable manner. The countersunk screws 22 work well and permit easy removal of the support surface assembly for maintenance or replacement.

It is preferable that the rough textured material 19 be impregnated with wax only to the extent necessary to coat the entire upper surface without destroying the textured aspects of the surface. That is, it will be observed in FIG. 3 that the wax impregnated material still has high points and valleys even though the entire surface is wax coated. While applicant is not certain as to all of the reasons why this arrangement results in a greatly reduced amount of friction being involved when a person walks or runs on the endless belt, it is believed that part of the reason may be due to the fact that the belt 10 rides on the high points of the composite support surface. The wax in the area of increased pressure may tend to melt momentarily due to this increased pressure. Any such melting would of course terminate shortly after the initiation thereof since the belt as soon as being driven against the support surface would move rearwardly (to the left in the drawings) and hence the pressure would be reduced on that area. Regardless of the reasons it has been found in practice that the frictional forces do not create a heat problem when this arrangement is used.

While various materials can be utilized it has been found in practice that canvas or similar cloth having a rough textured surface works well in combination with a nylon belt 10. Thus not only is the manufacturing cost low by comparison to the cost involved in the manufacture of other support surfaces typically used in treadmill assemblies, but it has also been found in practice that the upkeep associated with the resulting structure is negligible. While the wax can be of various types and applied in different ways it has been found in practice that ground carnauba wax spread over the canvas material, and then melted in place through the use of a hot iron, produces a highly desirable support surface. One such treadmill assembly using this arrangement as the bearing surface has provided trouble-free service for several thousand miles of walking" without any need for replacement or re-waxing of the surface.

What is claimed is:

1. An exercise treadmill assembly comprising an endless belt, drive means for moving said belt, and support means disposed beneath a portion of the path traveled by said belt including an irregular surface at least a portion of which is wax coated, said belt being made of nylon and said support means including a piece of canvas having its upper surface impregnated with wax.

2. In an exercise treadmill, a movably mounted belt and a support assembly for said belt, said support assembly comprising a section of rough textured material having a wax coating there-on, and substantially planar support means disposed beneath said material adapted to hold said material in a substantially planar position beneath a portion of the path of travel of the belt of the treadmill.

3. The apparatus of claim 2 wherein said material is canvas.

4. The apparatus of claim 3 wherein said wax is carnauba wax.

5. The apparatus of claim 2 wherein said support means includes a sheet of wood.

6. In combination, a movably mounted belt, drive means for moving the belt, and means opposite one face of the belt defining a surface to support a portion of the belt against deflection normal to the face of the belt, which surface has a piece of interwoven fibrous material secured in superposition thereon, the fibrous strands of which define open-ended recesses therebetween, which recesses have a low melting point thermoplastic lubricant material deposited therein, which lubricant material coats the defining fibers of the recesses and is in a solidified state assumed from a fused in situ condition on the fibrous material.

7. The combination according to claim 6 wherein the surface is planar and substantially rigid, and the fibrous material is directly secured thereto.

8. The combination according to claim 7 wherein the fibrous material is bonded to the surface.

9. The combination according to claim 6 wherein the lubricant material is a wax.

10. The combination according to claim 6 wherein the deposits of lubricant material substantially fill the recesses but recesses, so that said portions are elevated relatively thereabove to form high points for contact with the belt 11. The combination according to claim 10 wherein the are g y depressed in the direction of the surface and with 5 elevated portions are also coated with the lubricant material.

respect to portions of the strands defining the respective

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US2066206 *5 Jun 193629 Dec 1936William LaurieConveyer
US2558759 *9 Jan 19463 Jul 1951Johnson Robert HArtificial ski chute
US3356367 *7 Aug 19645 Dec 1967Tewksbury Robert LAmbulatory exercise device
US3518985 *15 Feb 19687 Jul 1970Quinton Wayne EControl system for an exercise machine using patient's heart rate and heart rate acceleration
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3711812 *29 Nov 197116 Jan 1973Del Mar Eng LabDrive and control system for diagnostic and therapeutic exercise treadmill
US4344616 *5 Aug 198017 Aug 1982Ralph OgdenExercise treadmill
US4364556 *20 Oct 198021 Dec 1982Nissen CorporationEmergency shut-off switch and frame assemblies for exercise apparatus
US4374587 *21 Jan 198122 Feb 1983Ralph OgdenExercise treadmill
US4566689 *10 Dec 198428 Jan 1986Ajay Enterprises CorporationAdjustable motor mount arrangement for exercise treadmills
US4602779 *17 Nov 198329 Jul 1986Ajax Enterprises CorporationExercise treadmill
US4616822 *1 Aug 198414 Oct 1986Trulaske James AExercise treadmill
US4872664 *3 Dec 198710 Oct 1989Robert ParkerTreadmill having improved deck
US5110117 *27 Feb 19905 May 1992Glen HensonTreadmill with pivoting handles
US5282776 *4 Feb 19931 Feb 1994Proform Fitness Products, Inc.Upper body exerciser
US5378213 *28 Jan 19943 Jan 1995Quint; Jeffrey T.Aquatic treadmill with mesh belt
US5383828 *16 Mar 199424 Jan 1995Precor IncorporatedBelt and deck assembly for an exercise treadmill
US5441468 *30 Sep 199415 Aug 1995Quinton Instrument CompanyResiliently mounted treadmill deck
US5527245 *3 Feb 199418 Jun 1996Icon Health & Fitness, Inc.Aerobic and anaerobic exercise machine
US5542892 *15 Aug 19946 Aug 1996Unisen, Inc.Supporting chassis for a treadmill
US5595556 *31 Jan 199421 Jan 1997Icon Health & Fitness, Inc.Treadmill with upper body system
US5643144 *29 Apr 19961 Jul 1997True Fitness Technology, Inc.Lubrication system for treadmill
US5662557 *30 Jan 19962 Sep 1997Icon Health & Fitness, Inc.Reorienting treadmill with latch
US5665032 *7 Sep 19959 Sep 1997Stamina Products, Inc.Manual treadmill exerciser with air blowing retardant assembly
US5669857 *30 Jan 199623 Sep 1997Icon Health & Fitness, Inc.Treadmill with elevation
US5672140 *30 Jan 199630 Sep 1997Icon Health & Fitness, Inc.Reorienting treadmill with inclination mechanism
US5674156 *30 Jan 19967 Oct 1997Icon Health & Fitness, Inc.Reorienting treadmill with covered base
US5674453 *30 Jan 19967 Oct 1997Icon Health & Fitness, Inc.Reorienting treadmill
US5676624 *30 Jan 199614 Oct 1997Icon Health & Fitness, Inc.Portable reorienting treadmill
US5683332 *30 Jan 19964 Nov 1997Icon Health & Fitness, Inc.Cabinet treadmill
US5702325 *30 Jan 199630 Dec 1997Icon Health & Fitness, Inc.Cabinet treadmill with handle
US5704879 *30 Jan 19966 Jan 1998Icon Health & Fitness, Inc.Cabinet treadmill with latch
US5708060 *23 Jan 199613 Jan 1998Precor IncorporatedBelt and deck assembly for an exercise treadmill
US5718657 *30 Jan 199617 Feb 1998Icon Health & Fitness, Inc.Cabinet treadmill with repositioning assist
US5743833 *30 Jan 199628 Apr 1998Icon Health & Fitness, Inc.Cabinet treadmill with door
US5772560 *30 Jan 199630 Jun 1998Icon Health & Fitness, Inc.Reorienting treadmill with lift assistance
US5830113 *20 Nov 19963 Nov 1998Ff Acquisition Corp.Foldable treadmill and bench apparatus and method
US5833577 *24 Sep 199610 Nov 1998Spirit Manufacturing, Inc.Fold-up exercise treadmill and method
US5855537 *12 Nov 19965 Jan 1999Ff Acquisition Corp.Powered folding treadmill apparatus and method
US5868648 *13 May 19969 Feb 1999Ff Acquisition Corp.Foldable treadmill apparatus and method
US5899834 *28 Oct 19974 May 1999Icon Health & Fitness, Inc.Fold-out treadmill
US5913384 *3 Jun 199622 Jun 1999Charles WilliamsTreadmill lubricating devices and methods
US5921893 *24 Mar 199813 Jul 1999Spirit Manufacturing, Inc.Fold-up exercise treadmill and method
US6045490 *10 Dec 19974 Apr 2000Shafer; Terry C.Motorized exercise treadmill
US6071354 *25 Jun 19996 Jun 2000Williams; CharlesMethods of cleaning treadmills
US6110076 *24 Mar 199829 Aug 2000Spirit Manufacturing, Inc.Fold-up exercise treadmill and method
US618021026 Sep 199630 Jan 2001The Goodyear Tire & Rubber CompanyAbrasion resistant energy absorbing treadmill walking/running belt
US619363425 Mar 199827 Feb 2001C. Rodger HurtFold-up exercise treadmill and method
US624163824 Mar 19985 Jun 2001Spirit Manufacturing, Inc.Fold-up exercise treadmill and method
US635021822 Dec 199926 Feb 2002Icon Health & Fitness, Inc.Fold-out treadmill
US69744042 Oct 199713 Dec 2005Icon Ip, Inc.Reorienting treadmill
US709759311 Aug 200329 Aug 2006Nautilus, Inc.Combination of treadmill and stair climbing machine
US719238826 Feb 200220 Mar 2007Icon Health & Fitness, Inc.Fold-out treadmill
US736792626 Jan 20066 May 2008Fitness Quest Inc.Exercise treadmill
US745562631 Dec 200125 Nov 2008Nautilus, Inc.Treadmill
US751730325 Feb 200514 Apr 2009Nautilus, Inc.Upper body exercise and flywheel enhanced dual deck treadmills
US75408283 Mar 20052 Jun 2009Icon Ip, Inc.Reorienting treadmill
US75441538 Aug 20069 Jun 2009Nautilus, Inc.Treadmill
US75499387 Jan 200323 Jun 2009Forbo Financial Services AgTreadmill belt
US764521225 Apr 200512 Jan 2010Icon Ip, Inc.System and method for selective adjustment of exercise apparatus
US777532423 Mar 200717 Aug 2010Thomas Peter CordenTreadmill lubrication device
US7887466 *9 Jun 201015 Feb 2011Paul ChenTreadmill having ventilating fan device
US83022138 Oct 20046 Nov 2012Ig Holdings LlcHelmets and vests
US869073515 Jul 20118 Apr 2014Icon Health & Fitness, Inc.Systems for interaction with exercise device
US869652414 Sep 201215 Apr 2014Nautilus, Inc.Dual deck exercise device
US8734299 *3 Apr 201227 May 2014Nautilus, Inc.Upper body exercise and flywheel enhanced dual deck treadmills
US87582013 Jul 201224 Jun 2014Icon Health & Fitness, Inc.Portable physical activity sensing system
US87842707 Sep 201022 Jul 2014Icon Ip, Inc.Portable physical activity sensing system
US90283685 Jul 201112 May 2015Icon Health & Fitness, Inc.Systems, methods, and devices for simulating real world terrain on an exercise device
US90504984 Mar 20139 Jun 2015Brunswick CorporationExercise assemblies having foot pedal members that are movable along user defined paths
US91142753 Dec 201325 Aug 2015Brunswick CorporationExercise assemblies having crank members with limited rotation
US91386147 Oct 201322 Sep 2015Brunswick CorporationExercise assemblies having linear motion synchronizing mechanism
US928342516 Apr 201515 Mar 2016Brunswick CorporationExercise assemblies having foot pedal members that are movable along user defined paths
US930841520 May 201412 Apr 2016Nautilus, Inc.Upper body exercise and flywheel enhanced dual deck treadmills
US935218720 May 201431 May 2016Nautilus, Inc.Dual deck exercise device
US961047511 Nov 20144 Apr 2017Brunswick CorporationLinear motion synchronizing mechanism and exercise assemblies having linear motion synchronizing mechanism
US20040132586 *7 Jan 20038 Jul 2004Siegling America, LlcTreadmill belt
US20040132587 *7 Jan 20038 Jul 2004Siegling America, LlcTreadmill belt
US20040147373 *29 Jan 200329 Jul 2004Haneburger Jules A.Treadmill belt
US20050107220 *1 Dec 200419 May 2005Chyuan Sheng Plywood Co., Ltd.Tread board
US20050209052 *25 Apr 200522 Sep 2005Ashby Darren CSystem and method for selective adjustment of exercise apparatus
US20050209059 *25 Feb 200522 Sep 2005Nautilus, Inc.Upper body exercise and flywheel enhanced dual deck treadmills
US20060058162 *7 Sep 200516 Mar 2006Tunturi Oy LtdTreadmill
US20060075544 *8 Oct 200413 Apr 2006Matt KrieselHelmets and vests
US20060287147 *3 Jan 200621 Dec 2006Matthew KrieselShock absorbing endless belt for a treadmill
US20070027003 *26 Jan 20061 Feb 2007Fitness Quest Inc.Exercise treadmill
US20070196151 *22 Feb 200623 Aug 2007Eastman Kodak CompanyElectrostatographic apparatus having improved transport member
US20070227822 *23 Mar 20074 Oct 2007Corden Thomas PLubrication Device
US20080026658 *6 Aug 200731 Jan 2008Matthew KrieselMulti-axially stretchable polymer shock absorbing pad
US20080250729 *11 Apr 200816 Oct 2008Matthew KrieselAcoustical and energy absorbent flooring underlayment
US20090258744 *23 Jun 200915 Oct 2009Forbo Siegling, LlcBelt
US20100216607 *30 Oct 200826 Aug 2010Karl MuellerExercise Apparatus
US20110201481 *18 Feb 201018 Aug 2011Chiu Hsiang LoBuffering Platform Unit of a Treadmill
US20120190509 *3 Apr 201226 Jul 2012Nautilus, Inc.Upper body exercise and flywheel enhanced dual deck treadmills
USRE426988 Oct 200413 Sep 2011Nautilus, Inc.Treadmill having dual treads for stepping exercises
EP0196877A2 *26 Mar 19868 Oct 1986Barry Laurence HayesShock absorbent moving platform
EP0196877A3 *26 Mar 198614 Oct 1987Barry Laurence HayesShock absorbent moving platform
EP1634627A1 *25 Aug 200515 Mar 2006Tunturi Oy LtdTreadmill
WO2003061772A1 *23 Jan 200331 Jul 2003Technogym S.P.A.A treadmill exercise machine
Classifications
U.S. Classification482/7, 482/54, 198/804
International ClassificationA63B22/02
Cooperative ClassificationA63B22/02, A63B2225/30, A63B22/0235, A63B22/0285
European ClassificationA63B22/02