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 dateMay 2, 1972
Filing dateApr 10, 1970
Priority dateApr 10, 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
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 *Jun 5, 1936Dec 29, 1936William LaurieConveyer
US2558759 *Jan 9, 1946Jul 3, 1951Johnson Robert HArtificial ski chute
US3356367 *Aug 7, 1964Dec 5, 1967Tewksbury Robert LAmbulatory exercise device
US3518985 *Feb 15, 1968Jul 7, 1970Quinton Wayne EControl system for an exercise machine using patient's heart rate and heart rate acceleration
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3711812 *Nov 29, 1971Jan 16, 1973Del Mar Eng LabDrive and control system for diagnostic and therapeutic exercise treadmill
US4344616 *Aug 5, 1980Aug 17, 1982Ralph OgdenExercise treadmill
US4364556 *Oct 20, 1980Dec 21, 1982Nissen CorporationEmergency shut-off switch and frame assemblies for exercise apparatus
US4374587 *Jan 21, 1981Feb 22, 1983Ralph OgdenExercise treadmill
US4566689 *Dec 10, 1984Jan 28, 1986Ajay Enterprises CorporationAdjustable motor mount arrangement for exercise treadmills
US4602779 *Nov 17, 1983Jul 29, 1986Ajax Enterprises CorporationExercise treadmill
US4616822 *Aug 1, 1984Oct 14, 1986Trulaske James AExercise treadmill
US4872664 *Dec 3, 1987Oct 10, 1989Robert ParkerTreadmill having improved deck
US5110117 *Feb 27, 1990May 5, 1992Glen HensonTreadmill with pivoting handles
US5282776 *Feb 4, 1993Feb 1, 1994Proform Fitness Products, Inc.Upper body exerciser
US5378213 *Jan 28, 1994Jan 3, 1995Quint; Jeffrey T.Aquatic treadmill with mesh belt
US5383828 *Mar 16, 1994Jan 24, 1995Precor IncorporatedBelt and deck assembly for an exercise treadmill
US5441468 *Sep 30, 1994Aug 15, 1995Quinton Instrument CompanyResiliently mounted treadmill deck
US5527245 *Feb 3, 1994Jun 18, 1996Icon Health & Fitness, Inc.Treadmill exercise system
US5542892 *Aug 15, 1994Aug 6, 1996Unisen, Inc.Supporting chassis for a treadmill
US5595556 *Jan 31, 1994Jan 21, 1997Icon Health & Fitness, Inc.Treadmill with upper body system
US5643144 *Apr 29, 1996Jul 1, 1997True Fitness Technology, Inc.Lubrication system for treadmill
US5662557 *Jan 30, 1996Sep 2, 1997Icon Health & Fitness, Inc.Reorienting treadmill with latch
US5665032 *Sep 7, 1995Sep 9, 1997Stamina Products, Inc.Manual treadmill exerciser with air blowing retardant assembly
US5669857 *Jan 30, 1996Sep 23, 1997Icon Health & Fitness, Inc.Treadmill with elevation
US5672140 *Jan 30, 1996Sep 30, 1997Icon Health & Fitness, Inc.Reorienting treadmill with inclination mechanism
US5674156 *Jan 30, 1996Oct 7, 1997Icon Health & Fitness, Inc.Reorienting treadmill with covered base
US5674453 *Jan 30, 1996Oct 7, 1997Icon Health & Fitness, Inc.Reorienting treadmill
US5676624 *Jan 30, 1996Oct 14, 1997Icon Health & Fitness, Inc.Portable reorienting treadmill
US5683332 *Jan 30, 1996Nov 4, 1997Icon Health & Fitness, Inc.Cabinet treadmill
US5702325 *Jan 30, 1996Dec 30, 1997Icon Health & Fitness, Inc.Cabinet treadmill with handle
US5704879 *Jan 30, 1996Jan 6, 1998Icon Health & Fitness, Inc.Cabinet treadmill with latch
US5708060 *Jan 23, 1996Jan 13, 1998Precor IncorporatedBelt and deck assembly for an exercise treadmill
US5718657 *Jan 30, 1996Feb 17, 1998Icon Health & Fitness, Inc.Cabinet treadmill with repositioning assist
US5743833 *Jan 30, 1996Apr 28, 1998Icon Health & Fitness, Inc.Cabinet treadmill with door
US5772560 *Jan 30, 1996Jun 30, 1998Icon Health & Fitness, Inc.Reorienting treadmill with lift assistance
US5830113 *Nov 20, 1996Nov 3, 1998Ff Acquisition Corp.Foldable treadmill and bench apparatus and method
US5833577 *Sep 24, 1996Nov 10, 1998Spirit Manufacturing, Inc.For in-place walking, jogging or running exercise
US5855537 *Nov 12, 1996Jan 5, 1999Ff Acquisition Corp.Powered folding treadmill apparatus and method
US5868648 *May 13, 1996Feb 9, 1999Ff Acquisition Corp.Foldable treadmill apparatus and method
US5899834 *Oct 28, 1997May 4, 1999Icon Health & Fitness, Inc.For storage against a wall
US5913384 *Jun 3, 1996Jun 22, 1999Charles WilliamsOf an exercise treadmill
US5921893 *Mar 24, 1998Jul 13, 1999Spirit Manufacturing, Inc.Fold-up exercise treadmill and method
US6045490 *Dec 10, 1997Apr 4, 2000Shafer; Terry C.Motorized exercise treadmill
US6071354 *Jun 25, 1999Jun 6, 2000Williams; CharlesMethods of cleaning treadmills
US6110076 *Mar 24, 1998Aug 29, 2000Spirit Manufacturing, Inc.Fold-up exercise treadmill and method
US6180210Sep 26, 1996Jan 30, 2001The Goodyear Tire & Rubber CompanyAbrasion resistant energy absorbing treadmill walking/running belt
US6193634Mar 25, 1998Feb 27, 2001C. Rodger HurtFold-up exercise treadmill and method
US6241638Mar 24, 1998Jun 5, 2001Spirit Manufacturing, Inc.Fold-up exercise treadmill and method
US6350218Dec 22, 1999Feb 26, 2002Icon Health & Fitness, Inc.Fold-out treadmill
US6974404Oct 2, 1997Dec 13, 2005Icon Ip, Inc.Reorienting treadmill
US7097593Aug 11, 2003Aug 29, 2006Nautilus, Inc.Combination of treadmill and stair climbing machine
US7192388Feb 26, 2002Mar 20, 2007Icon Health & Fitness, Inc.Fold-out treadmill
US7367926Jan 26, 2006May 6, 2008Fitness Quest Inc.Exercise treadmill
US7455626Dec 31, 2001Nov 25, 2008Nautilus, Inc.Treadmill
US7517303Feb 25, 2005Apr 14, 2009Nautilus, Inc.Upper body exercise and flywheel enhanced dual deck treadmills
US7540828Mar 3, 2005Jun 2, 2009Icon Ip, Inc.Reorienting treadmill
US7544153Aug 8, 2006Jun 9, 2009Nautilus, Inc.Treadmill
US7549938Jan 7, 2003Jun 23, 2009Forbo Financial Services AgTreadmill belt
US7645212Apr 25, 2005Jan 12, 2010Icon Ip, Inc.System and method for selective adjustment of exercise apparatus
US7775324Mar 23, 2007Aug 17, 2010Thomas Peter CordenTreadmill lubrication device
US7887466 *Jun 9, 2010Feb 15, 2011Paul ChenTreadmill having ventilating fan device
US8302213Oct 8, 2004Nov 6, 2012Ig Holdings LlcHelmets and vests
US8690735Jul 15, 2011Apr 8, 2014Icon Health & Fitness, Inc.Systems for interaction with exercise device
US8696524Sep 14, 2012Apr 15, 2014Nautilus, Inc.Dual deck exercise device
US8734299 *Apr 3, 2012May 27, 2014Nautilus, Inc.Upper body exercise and flywheel enhanced dual deck treadmills
US8758201Jul 3, 2012Jun 24, 2014Icon Health & Fitness, Inc.Portable physical activity sensing system
US8784270Sep 7, 2010Jul 22, 2014Icon Ip, Inc.Portable physical activity sensing system
US20070196151 *Feb 22, 2006Aug 23, 2007Eastman Kodak CompanyElectrostatographic apparatus having improved transport member
US20120190509 *Apr 3, 2012Jul 26, 2012Nautilus, Inc.Upper body exercise and flywheel enhanced dual deck treadmills
USRE42698Oct 8, 2004Sep 13, 2011Nautilus, Inc.Treadmill having dual treads for stepping exercises
EP0196877A2 *Mar 26, 1986Oct 8, 1986Barry Laurence HayesShock absorbent moving platform
EP1634627A1 *Aug 25, 2005Mar 15, 2006Tunturi Oy LtdTreadmill
WO2003061772A1 *Jan 23, 2003Jul 31, 2003Nerio AlessandriA 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