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Publication numberUS2327671 A
Publication typeGrant
Publication dateAug 24, 1943
Filing dateSep 10, 1941
Priority dateSep 10, 1941
Publication numberUS 2327671 A, US 2327671A, US-A-2327671, US2327671 A, US2327671A
InventorsJoseph A Rupprecht
Original AssigneeJoseph A Rupprecht
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Walker mechanism for invalids
US 2327671 A
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Description  (OCR text may contain errors)

Aug. 24, 1943. J. A. RUPPRECHT 2,327,671

WALKER MECHANISM FOR INVALIDS Fil ad Sepi. 10, 1941 2 Sheets$heet l 24' YWL ATTORN EYS Aug. 24, 1943. J. A. RUPPRECHT WALKER MECHANISM FOR 'INVALIDS Filed Sept. 10, 1941 2 Sheets-Sheet 2 ATTORNEYS JOSEPH A. RuPPREcHr INVENTOR Patented Aug. 24, 1943 UNITED STATES PATENT OFFICE 2,327,671 WALKER MECHANISM FOR INVALlDS Joseph A. Rupprecht, Seattle, Wash. Application September 10, 1941,SerialNo.4 10,27 3 i 11 Claims. (01,. 272-40) This invention relates to improvements in a walker mechanism for invalids and more particularly-to an apparatus or appliancewhich may be used by physicians to control the weight pressure allowed on the legs of invalids in cases of leg fractures, breaks, sprains, cut tendons, and so forth, during the healing stages and to assist the invalid in regainingfull use of his physical processes. This invention is also useful in the treatment of infantile paralysis and other .111- nesses involving loss orimpairment of muscular coordination, and weaknesses, as it allows the attending physicians to prescribe and control body pressure on legs, while allowing patients full freedom for needed exercise.

The device entirely eliminates any danger of re-injury or added injury which is possible dur ing the use of crutches. My device, through'the principles involved, acts as an aid inmaking walking motions and by systematic weight increases on the legs, as prescribed by the'physician, allows a gradual strengthening of the muscles and re-coordination of the nerves to the end that full articulation may be hastened and made easy;

In the rehabilitation of invalids who are suffering from the disability of using the lower limbs, it is an important consideration that the person gradually apply the body weight to the healing legs or limbs, so that the weak member,

muscles, orthe like may take up the strainof carrying the body in a gradual manner and in a manner that may be periodically increased or varied. When the undertaking is left to the judgment of the invalid, often he will takeu'pon himself too strenuous a burden for the condition that he is trying to cure and great harm will be done.

It is an important object of my invention to provide a walker mechanism for invalids, which mechanism, in addition to supporting the invalid, may also be periodically adjusted tovary the load the invalid may place upon the lower extremities and to carefully gauge that load, previous to allowing its support by the invalid.

Another object of the invention is the provision of a walker for invalids in which device the entire body weight of the invalid is carried in suspending means and can be applied to the extremities of the invalid only when'desired by him. 1 r I A further objectof the invention relates to the provision of gauge scales in a walker by which the load that theinvalids legs are tocarry may be carefullygauged before the inbe suspended. i

Other objects and advantages of the invention will be more apparent during the course of the following description.

In the drawings and in the accompanying specification I have shown and described a preferred form of my invention, but it is specifically pointed out that changes and alterations may be made within the scope of the subjoined claims without departing from the principles disclosed herein.

In the draWings--- Figure 1 is a'perspective view of my walker mechanism for invalids,

Figure 2 is a side elevational view of the cable stopper used in my assembly,

Figure 3 is a vertical cross-sectional view through the cable stopper, taken on line 33 of Figure 2,

Figure 4 is a cross-sectional view taken on line 4-4 of Figure 2,

Figure 5 is an inner liner which may be inserted in the supporting trunk of my device,

Figure 6 is a. fragmentary plan view showing leadersheaves attached to the horizontal cross.

brace of the walker frame,

Figure '7 is an enlarged sectional View of th yoke member, the ball and socket arrangement for the telescopic side braces and the locking means for the same,

Figure 8 is a cross-sectional view of the supporting strap:and snap which is attached between the .suspender spring and the trunks,

Figure 9 is a vertical sectional view of the bevel gear andscrew employed in my device,

Figure 10 is a view taken on line |o |o of Figure 9,

. Figure 11 is a perspective View of a modified Adapted to be adjusted vertically in the front support bar 26 is a screw which carries a' yoke-supporting fork 42. A support or yoke .44

is secured as by the rivets 46 to the fork 42. A pair of opposed yoke supporting legs 48 and 50 rest in the ball and socket joint shown at 52 and rise therefrom. The telescopic legs 54 fit into the tubular legs 48 and 50 and have ball and socket or pivotal connections to the yoke at 53. These yoke legs have to be adjusted for differences in heights to which the yoke is adjusted with relation to the front support bar 25. j The telescopic legs 54 may be locked in any adjusted position in the yoke legs 48 and 56 by the wing nuts 58. I The yoke can be adjusted to any height by means of the two meshed bevel gears shown at 28. The housing of the bevel gears is secured to the front support bar 7 26. An internally threaded bevel gear 60 engages on the threaded leg 4!] and is in mesh with the bevelgear 62 which is rotatable by the crank M. When the crank Ed is rotated, .which'action revolves gear 62, the

gear 60 will beturned and the threads on its interior will raise or lower the screw 40., The screw all has a keyway 66 cut in its front face and the key 68 in the leg 26 keeps the yoke 44 from shifting.

A cable stopper it! is attached to the lower front of the brace rod 25 above the gauge-scale H and below. the bevel gear assembly 28. The function of this stopper is to assume the. load carried on the scale H and to allow disconnec tion of cables running to the gauge-scale where weight adjustment has been made.

When such adjustment is made and the gaugescale is relieved of the load,. subsequent and forceful movements of the patient in the suspending means will not be translated directly to the relatively sensitive mechanism of the gaugescale. The function of the cable stopper is primarily for such protective reasons, although it also serves to relieve the suspension means of any flexibility that would be'impartedfrom the gauge mechanism as well as to firmly anchor the suspension means at one-end.

The housing 'a'il of the cable stopper has the two slots 12 in opposed sides. Mounted to float freely in the stopper housing, is the horizontal spreader bar 7 4 which is secured to a guide block 76 within the housing "lb and extends outwardly on each side thereof. The horizontal spreader bar has the cable clamps '58 at its ends which are formed by bifurcating the spreader ends attt. These are closed snugly about the. cable bythe wing-nuts M- on bolts 82.

A set screw 84 which is threaded'into the top of the housing at 85 is used as a stop tofix the guide block 16 in any desired position.

The gauge spring .scale- H is secured to the front cross tie bar 20' at flil; I This gauge scale is used, first, for determining the weight of the patient and second for determining the weight pressure allowable on the legs as prescribed by the circumstances of the invalids condition. The scale ll is spring operated and has a pointer which indicates on the indicia 92 the number of pounds pressure applied to the draft link 94 that is coupled to the indicator hand 90 by spring mechanism (not shown). The link 94 has the hook 96 at its outward end.

Two body supporting cables 98 and H10 are secured-to a ring I02 which ring is engaged over a book 96. The cables are then led upwardly into the ends of the spreader bar at I 04 and H16 where they may be clamped. They are then passed over the leader sheaves I08 and I H], which sheaves are secured to the horizontal cross bar 34. Eventually'the cables are led over the upper leader sheaves H2 and H4, which sheaves have clips that are secured by the rivets 46 to the yoke 44 and fork 42.

The suspender springs H6 are attached to the ends of the cables 98 and I00, and support the body suspension assembly. Adjustableweb bing or straps H8 andsnaps attach the springs ;to the trunks 122. These trunks have sides and back adjustable to fit the wearer. This garmentis adjusted by varying the laces H4 in the slits in the sides and back. An inner liner lziiis placed within thetrunks and is used fo sanitation.

,The suspender straps are adjustable by means of the buckle and hole assembly shown at I28. The snap fasteners I20 are snapped into loops I33 whichmay be built into the trunks.

'In the modified showing of Figures 11 and 12 the suspender springs-are coupled directly to the indicating-gauge scalesv l 32. The draftlinks 134 of these scales can be locked in position by the.

In this showing the adjustments set screw I36. for'length are made by the adjustable suspender straps I40.

M ethod of operation I The suspender springs H6 are two fold in I action-first as the patient is lowered after the total weight has been determined, the springs will recoil in relation to the Weight allowed upon the patients legs, and thus will not disturb the adjustment made on the Suspender strapsin relation to the armpit rest or yoke 44 with the trunks. Second, the remaining coil of spring acts as a shock absorber and augments whatever strength the patient may have'in making walking motions. I v

The construction over all is intended to give maximum mobility with the least expended effort. The forward slant of the front bar, by'the action of the body thrust against it, helps the leg motion of the invalid to drive the apparatus forward. 7 V

The wide breadth of the bottom frame or chas-' sis is intended to provide greater balance for safety. The bracing is so placed as to give the greatest amount of strength with a minimum of braces for lightness of construction.

In operation, after adjusting the suspender straps in relation to the armpit rest or yoke 44 to .fit the patient-the patient is then placed in the'apparatus with his feet suspended free of the floor, at which time his total weight is regisf tered on the gauge; scale. Then by gradually lowering by means of the gearing and front screw,

the exact pressure on legs may be determined.

For instance, if the gauge scale shows that-the patient weighs1150 pounds and'the allowable Weight on the legs-;is. 20- pounds, by gradually,

lowering until the gauge shows 130 pounds, it is accurately determined that the patient is sustaining pounds of total weight. The set screw of the cable stop is then screwed down firmly on the horizontal bar and the cables are free of tension to be released from the gauge scale.

When the cable is stopped off the suspension means for the hip-receiving portion will be anchored at one end and neither receive resilience from the gauge-scale nor transmit, during subsequent use, force that might be destructive to the elements of the gauge-scale.

I claim:

1. In an exerciser of the type employing a wheel carriage and a superstructure thereon adapted to partially support the human body by the armpits and from which body. receiving means may be suspended, a gauge scale on said frame, suspension means associated with said scale for suspending a weight from said superstructure, and a body receiving element depending from said cable means whereby a body in said element will have its weight translated to said gauge scale, and clamp means to engage said suspension means to secure said body receiving element in adjusted position without disturbing the point of suspension of said element.

2. In an exerciser of the type employing a wheel carriage and a superstructure thereon from which body receiving meansmay be sus. pended, a gauge scale on said frame, suspension means associated with said scale for suspending a weight from said superstructure, a body receiving element depending from said suspension means whereby a body in said element will have its weight translated to said gauge scale, and means for relieving said scale of a weight applied thereto without disturbing the point cfsuspension of said element.

3. In an exerciser of the type employing a wheel carriage frame and a, superstructure thereon from which person receiving means may be suspended, a yoke fixed to said superstructure to receive and support the shoulder portion of a person, a gauge scale on said frame, suspension means associated with said scale for suspending a weight from said superstructure, and a person receiving element depending from said suspension means whereby a person in said element will have its weight translated to said gauge scale.

4. An invalid walker comprising a wheeled carriage frame, a gauge scale on the frame and having means for translating a weight thereto, means for receiving andsupporting the body of an invalid, suspension means between said body receiving means and said weight translating means on said gauge scale whereby the weight of a body is suspended in said receiving means and is indicated on the dial of said gauge, and means for locking said suspension means to relieve said scale of said weight on occasion while maintaining the body in suspended position.

5. An invalid walker comprising a wheeled carriage frame, a gauge scale on the frame and having means for translating a weight thereto, means for receiving and supporting the body of an invalid, suspension means between said body receiving means and said weight translating means on said gauge scale whereby the weight of the body is suspended in said receiving means and indicated on the dial of said gauge means, and means for clamping said suspension means in adjusted position to relieve said scale of the body weight on occasion.

-6. An invalid walker comprising a wheeled carriage frame, a gauge scale on the frame and having means for translating 2. weight thereto, means for receiving and supporting the body of an invalid, a cable between said body receiving means and said weight translating means on said gauge scale whereby the weight of a body is suspended in said receiving means and is indicated on the dial of said gauge means, and a clamp for securing said cable to relieve said scale of the body weight on occasion.

7 An invalid walker comprising a wheeled carriage frame, a gauge scale on the frame and having means for translating a weight thereto, means for receiving and supporting the body of an invalid, a pair of cables between said body receiving means and said weight translating means on said scale whereby the weight of a body is suspended in said receiving means and is indicated on the dial of said gauge means, and means for clamping said cable in adjusted position to relieve said scale of said weight on occasion, said means comprising a housing having a vertically movable element therein and clamp arms extending outwardly from said element, each arm adapted to engage and clamp one said cable, and means for maintaining said movable element in adjusted position.

8. An invalid walker comprising a wheeled carriage frame, a gauge scale on the frame and including means for translating a weight thereto, means for receiving and supporting the person of an invalid, and suspension means between said person receiving means and said weight translating means on said gauge scale whereby the weight of a person in said receiving means is indicated on the dial of said gauge means.

9. An exercising mechanism comprising a supporting frame adapted to partially support the human body by the armpits, a gauge scale on said frame, suspension means depending from said gauge scale for translating a weight imposed upon the suspension means to said scale, hip supporting means on said suspension means, and means for relieving said scale of said weight on occasion.

10; In an invalid walker of the type employing a carriage frame having a superstructure thereon adapted to partially support the human bodyby-the armpits and from which body supporting means may be suspended, a gauge scale on said frame having means for translating a weight thereto, a cable associated with said weight translating means and said superstructure for suspending a weight, springmeans on said cable and a body receiving element depending from said spring means whereby an invalid in said element will have his weight resiliently translated to said gauge scale.

11. In an invalid walker of the type employinga carriage frame having a superstructure thereon adapted to partially support the human. body by'the armpits and from which body supporting means may be suspended, a gauge scale on said frame having means for translating a weight thereto, a cable associated with said weight translating means and said superstructure for suspending a weight, a body receiving element depending from said cable whereby an invalid in said element will have his weight translated to said gauge scale, and means for clamping said cable in adjusted position on occasion.

JOSEPH A. RUPPRECHT.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
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Classifications
U.S. Classification280/87.21, 297/217.2, 482/909, 482/68, 482/67, 297/5, 297/DIG.400
International ClassificationA61H3/04, A61H3/00
Cooperative ClassificationY10S482/909, A61H3/04, A61H3/008, Y10S297/04
European ClassificationA61H3/04