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Publication numberUS3418670 A
Publication typeGrant
Publication dateDec 31, 1968
Filing dateApr 27, 1967
Priority dateApr 27, 1967
Publication numberUS 3418670 A, US 3418670A, US-A-3418670, US3418670 A, US3418670A
InventorsRubie F Morgan
Original AssigneeRubie F. Morgan
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Roller stretcher
US 3418670 A
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Description  (OCR text may contain errors)

Dec.- 31, 1968 R. F. MORGAN ROLLER STRETCHER Sheet Filed April 27, 1967 INVENTOR. pas/5 WOAR2M Dec. 31, 1968 R. F. MORGAN ROLLER STRETCHBR Sheet INVENTOR. fa /E w/amaw Filed April 27. 1967 United States Patent 1 3,418,670 ROLLER STRETCI-IER Ruble F. Morgan, Rte. 2, Box 840, Trussville, Ala. 35173 Filed Apr. 27, 1967, Ser. No. 634,180 4 Claims. (Cl. -81) ABSTRACT OF THE DISCLOSURE The roller stretcher comprises an arrangement of two separate belts. The lower belt is a track belt and the upper belt is bed belt. As to the size of the rollers, they may be varied according to design, but the device is used to lift an injured or sick person from the ground or other area without picking them up, while the smaller roller reduces the height by which such person may have to be lifted.

The present invention relates to a roller stretcher operated by a crank arm, and more particularly the invention relates to a two belt roller stretcher assembly in which there are two separate belts, the lower belt being used for rolling or crawling along the floor or ground surface by the apparatus and the upper belt is used as the bed belt on which the patient is positioned and rolled about. The upper belt rolls because of contact friction throughout by it with the lower belt as is observed from the cross-sectional view of the drawings.

An object of the present invention is to provide a small upper roller assembly that is disposed for receiving a patient in which the patient is eased onto the small roller assembly and then it provides for pulling the patient onto the stretcher as the stretcher moves under him as a result of the bottom or crawler belt advancing as the crank arm is turned. The crank arm turns a worm gear to drive the lower belt, which then drives the upper belt by frictional engagement therewith.

A further object of the present invention is to provide a lightweight and readily controllable stretcher apparatus for use in hospitals, emergency cases, ambulance uses and the like.

The above and other objects and advantages of the invention will become apparent upon full consideration of the following detailed description and accompanying drawings in which:

FIGURE 1 is a front elevation view, shown partially in cross-section, oflthe roller stretcher of the present invention.

FIGURE 2 shows an enlarged plan elevation view in which the center portion thereof is removed or broken away.

FIGURE 3 is an enlarged detailed cross-sectional view taken along lines 33 of FIGURE 1.

FIGURE 4 shows an enlarged detailed sectional view taken along lines 4-4 of FIGURE 1.

FIGURE 5 is an enlarged detailed sectional view taken along lines 5-5 of FIGURE 1; and

FIGURE 6 is a perspective view of the roller stretcher showing the embodiments of the invention thereof,

Referring now to the drawings, there is shown a roller stretcher 10 having end plates 12, 14 which may be of hollow aluminum tubing, and a pair of shafts 16, 18 disposed transvers to the end plates 12, 14 and at opposite ends of the stretcher. On the shafts 16, 18 there 3,418,670 Patented Dec. 31, 1968 are mounted large rollers 20, 22 and on these rollers there is in tight engagement therewith an endless belt 26 for providing rolling engagement with the ground or floor surface 28 on the one hand and for providing an upper frictional surface 30 on the other.

A further pair of shafts 32, 34 are disposed transverse also to the end plates 12, 14, but each one of the shafts 32, 34 is positioned more outwardly of the shafts 16, 18, respectively. On each of the smaller shafts there is a small diameter dimensioned roller 36, 38, respectively, and an endless belt 40 is tightly disposed over the smaller rollers and in frictional engagement with surface 30 on the one hand and provides a free supporting surface 42 on the other.

There is disposed intermediate the large rollers 20, 22 a belt tension adjustment tube 50 that is rotatably mounted from a shaft 52 and has an adjustment mechanism comprising a bolt and nut arrangement 54, 56 for adjusting the tensioning effect of the roller 50 and the shaft 52. I

The belt tension adjustment tube 50 rolls freely with the movement of the upper endless belt 40 as it engages surface 30 of the lower endless belt 26.

Shaft 16 may be selectively driven by a crank arm 60 having handle 62, which drives a shaft 64 and in turn drives the roller shaft 16 through a worm gear 66. As the crank handle 62 is turned, the roller 20 is driven and by the frictional engagement with the endless belt 26, the endless belt 40 is thus driven. The arrows are shown in FIGURES 1 and 6 of the directions in which the belt is driven upon a given rotation of the crank handle 62.

In FIGURE 4 there is shown the manner in which the belt tension adjustment tube 50 is displaced either upwardly or downwardly as shown by the arrow for adjusting the tension of each of the endless belts 26, 40.

Additional embodiments of the invention in this specification will occur to others, and therefore it is intended that the scope of the invention be limited only by the appended claims and not by the embodiment described hereinabove. Accordingly, reference should be made to the following claims in determining the full scope of the invention.

What is claimed is:

1. A stretcher adapted to pull and lift a body onto a supporting surface comprising:

upper and lower pairs of spaced apart roller means,

support means for said roller means, said roller means being in substantially parallel relationship and rotatably afiixed to said support means,

lower endless belt means encircling the lower roller means,

substantially continuous upper endless belt means encircling the upper of the pair of upper roller means and longer than the body to be lifted, the said upper and lower endless belt means being connected to simultaneously rotate, and

means connected to the roller means to rotate the endless belt means.

2. The invention of claim 1 wherein a crank arm and gearbox drive said upper roller means.

3. The invention of claim 2 wherein a belt tension adjustment tube engages each of said belt means into frictional engagement with each other, and produces References Cited UNITED STATES PATENTS 2,468,055 4/1949 Gi bler 214-83.36 2,655,667 10/1953 Burkert 561 Davis 581 Richards '561' X Bovre 586 Sehiltz 21483.36

CASMIR A. NUNBERG, Primary Examiner.

U.S. C1. X.R.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US2468055 *Nov 28, 1945Apr 26, 1949Gibler John WLoad-dumping pallet
US2655667 *Feb 18, 1948Oct 20, 1953Hilde SaligerWinding patient lift and turning mechanism
US2918681 *Jun 30, 1953Dec 29, 1959Fenimore E DavisPatient transfer device
US2984842 *May 20, 1959May 23, 1961Fred P RichardsLateral-shift litter
US3049725 *Feb 18, 1960Aug 21, 1962Albert J BovrePatient handling apparatus
US3209932 *Oct 22, 1963Oct 5, 1965Schiltz Bruce AHaystack moving apparatus
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3493979 *Feb 14, 1968Feb 10, 1970Advance Products Corp Of AmeriMethod and apparatus for moving objects
US3541617 *May 10, 1968Nov 24, 1970Wayne N ClananElevator for invalids
US3654644 *Oct 27, 1969Apr 11, 1972Stero NvStretcher
US3724005 *Jun 22, 1971Apr 3, 1973Philips CorpStretcher
US3760435 *Feb 25, 1971Sep 25, 1973Philips CorpStretchers
US3775784 *Dec 30, 1971Dec 4, 1973Fry CStretcher
US3781929 *Jun 22, 1971Jan 1, 1974Philips CorpStretcher
US3894303 *Sep 26, 1973Jul 15, 1975William L AngelInvalid lift
US4967427 *Dec 14, 1989Nov 6, 1990Cherepy Sr Louis SPatient conveyor assembly
US5540321 *Aug 19, 1994Jul 30, 1996Foster; WilburApparatus and method for moving objects
US6408466 *Apr 7, 2000Jun 25, 2002Claudio Artemio BlottaStretcher for the non-traumatic transport and lifting of people
US6698041Feb 20, 2001Mar 2, 2004The Or Group, Inc.Patient transfer apparatus
US6772456Apr 4, 2001Aug 10, 2004Hill-Rom Services, Inc.Portable device for patient pullup, rollover, and transfer and methods thereof
US7047578Jan 21, 2004May 23, 2006VisionMedical transport technology
US7111338Jun 13, 2003Sep 26, 2006Hill-Rom Services, Inc.Apparatus for pulling patient up in bed
US7290299Jan 10, 2005Nov 6, 2007Votel Thomas WDevice and method for positioning patients
US7487558Dec 21, 2005Feb 10, 2009Hill-Rom Services, Inc.Headboard for a pull-up-in-bed system
US7603729Oct 7, 2005Oct 20, 2009Conmedisys, Inc.Patient lift and transfer device
US7725964Aug 23, 2005Jun 1, 2010Hill-Rom Services, Inc.Apparatus with patient adjustment device coupled to architectural system
US7975329Sep 24, 2009Jul 12, 2011ConMediSys, IncPatient lift and transfer device
US8096004Mar 4, 2011Jan 17, 2012Conmedisys, Inc.Patient lift and transfer device
US8112833Nov 24, 2010Feb 14, 2012Conmedisys, Inc.Table assembly for patient transfer device
US8214943Aug 8, 2008Jul 10, 2012Conmedisys, Inc.Steering system for patient transfer device
US8214944Jul 11, 2011Jul 10, 2012Conmedisys, Inc.Patient lift and transfer device
US8336138Mar 18, 2011Dec 25, 2012Hill-Rom Services, Inc.Radial arm system for patient care equipment
US8356368May 2, 2012Jan 22, 2013MediGlider Corp.Patient lift and transfer device
US8434174Jun 9, 2012May 7, 2013MediGlider Corp.Steering system for patient transfer device
US8448272Jun 9, 2012May 28, 2013MediGlider Corp.Table and slide assemblies for patient transfer device
US8713730May 31, 2011May 6, 2014Lawrence R. Koh and Nina Merrell-KohMedical transport device
DE102005031663A1 *Jul 5, 2005Jan 11, 2007Losch Airport Service Equipment GmbhDevice for moving frail or disabled people comprises a frame with a seat part which faces the user and moves back and forth in relation to the ground and a transport part which moves back and forth and is supported on the ground
EP0430084A1 *Nov 22, 1990Jun 5, 1991Stierlen-Maquet AktiengesellschaftDevice for transfering patients
EP0487061A1 *Nov 19, 1991May 27, 1992Stierlen-Maquet AktiengesellschaftDevice for transfering patients
EP0843991A1 *Nov 25, 1997May 27, 1998Claudio Artemio BlottaNew stretcher for the non traumatic transfer of people and animals in critical situations
Classifications
U.S. Classification5/81.10C, 414/528
International ClassificationA61G1/003, A61G7/10
Cooperative ClassificationA61G7/1032, A61G2200/32, A61G1/003
European ClassificationA61G1/003, A61G7/10P6