US2234483A - Invalid carrier - Google Patents

Description

March 11,1941. R. w. SUTTON 2,234,483

' INVALID CARRIER Filed Feb. 16. 1938 2 Sheets-Sheet 1 INVENTOR. R'oberf mJa-l'lou m BY v21,

W I ATTORNEYS.

Patented Mar. 11, 1941 PATENT OFFICE 2,234,183 INVALID CARRIER Robert W. Sutton, Kalamazoo, Mich assignor of one-half to Charles H. Andre, Detroit, Mich.

Application February 16, 1938, Serial No. 190,688

8 Claims.

The present invention relates to invalid car riers and more particularly to a wheeled invalid carrier or stretcher especially adapted for use in hospitals in instances wherein it is desired to move a patient from one bed to another or from one room to another. v The primary objects of the instant invention are to provide an invalid carrier of the general character above indicated which is so constructed as to materially aid in the transfer of the patient from his bed to the carrier, thereby enabling the transfer to be accomplished through the efforts of a single attendant rather than two or frequently three attendants which is the case when equipment of other types is employed; to provide such a carrier which is uniquely adapted for the bathing of a patient reclined thereon; to provide improved mechanism for raising, lowering and turning the cradle of the carrier; and, to provide such 'a carrier having certain other novel features of construction hereinafter appearing and described in the body of this specification.

An illustrative embodiment of the invention 25 is shown in the accompanying drawings, wherein:

Figure 1 is a perspective view of the carrier, the cradle thereof being shown in tilted position;

Figure 2 isan end elevational view of the car- 30 rier and showing the cradle in its horizontal or non-tilted position, a crank wheel on thestructure being shown fragmentarily to show otherwise hidden parts;

Figure 3 is a sectional view through certain parts at the left hand end of the structure on line 33 of Figure 2;

Figure 4 is a similar sectional view of corresponding parts at the right hand end of the structure on line 44 of Figure 2;

Figure 5 is a sectional view on line 5-5 of Figure 2;

Figure 6 is a sectional view similarto Figure 5 but showing certain parts in different turned positions from their positions shown in Figure 5; and v v v Figure 7 is a sectional view on line 1-1 of Figure 2.

Referring then to these drawings in which like numerals designate like parts in the several 50 views, the invalid carrier therein shown has a chassis whose L-shaped end frame members IO, M are connected in spaced parallel relation by a cross bar l2. Each of these L-shaped members III, II comprises a cylindrical horizontal bar l3 and a vertical tubular column M. The

horizontal bars l3 are provided with casters l5 at their extremities upon which the structure rests and which are preferably provided with rubber tires l6. 7

The vertical tubular columns l4 are provided with 'intemal screw threadsv H in which are disposed jack screws l8 and sleeve members l9 vertically slidably embracing the vertical columns M are supported on the jack screws l8 by their horizontally extending flanges 20 which 10 rest upon collars 2| secured to the jack screws. The'sleeve members l9 are likewise, provided with upstanding walls 22 in whose horizontally aligned bearings 23 is journalled a shaft 24.

Bevel gears 25 secured to the upper ends of jack screws l8 mesh with bevel gears 26 secured to the shaft 24 and a crank wheel 21 secured to one end of the shaft 24 may be manually turned to rotate the shaft which through the bevel gears 25 and 25 turns the jack screws I8 to synchronously raise or lower the sleeve members I9.

Cover members 28 secured by screws 29 to vertically extending projections 30 on sleeve members l9 are fitted to the horizontal flanges 20 and upstanding walls 22 of the sleeve members I9 to form housings for the bevel gears 25 and 26 in which housings a lubricant may be packed to insure smooth and quiet meshing of the gears.

Laterally projecting cylindrical arms 3| secured to the upper portions of each sleeve member l9 overhang .in horizontally spaced parallel relation the horizontal bars l3 of the L-shaped end frame members II which arms 3| are provided at their outer ends with horizontally aligned bearings 32 in which bearings are pivotally mounted the opposite ends of a center rod 33 on which a cradle 34 is supported as hereinafter described.

The cradle 34 comprises a plurality of spaced parallel slatseach havinga concave upper surface and each having a depending web 36 through the series of aligned apertures of which are passed the center rod 33 and a pair of oppositely disposed side rods or stays '37, 38, all secured to each web as by welding to insure a rigidly supported cradle.

A sleeve 39 slidably and rotatably embracing one of the laterally projecting cylindrical arms 3| is provided with a helical slot 40 through which a guide pin 4| secured to the arm 3| projects and a lever 42, preferably integrally formed with the sleeve 39, is pivotally connected to one end of a hook link 43 whose other end is pivot- 5 I as ally connected to a member 44 rotatably embracing the rod or stay ll.

Thus it will be seen that when the lever 42 is in its raised position shown in Figures 1 and 5, the cradle 34 is in a sidewise tilted position whereas when the lever 42 is turned downwardly to its position shown in Figures 2 and 6, the hook lever 43 and member 44 are also drawn downwardly and with them the raised side of cradle 34 which isthus caused to assume a horizontal or non-tilted position. During this downward turning movement of the lever 42, the sleeve 39 is caused tobe moved on its arm 3| away from bearing 32, or to the right in Figure 2, by the action of the pin 4| in the helical slot 4. of the sleeve 39. In this manner, hook link 43 is maintained in a vertical plane to prevent binding of the pivotal mountings of the hook The horizontal bars I! of the L-shaped end frame members II are provided with horizontally aligned bearings 45 in which a. rod 48 is slidably and turnably disposed. One end on this rod is bent at right angles to form a short leg 41 on the end of which is secured a rubber stop 48 and to the other end of rod 44, a collar 49 is secured having a radially extending leg 50 disposed in parallelism to the leg 41 and which is likewise provided witha rubber stop 5i.

-A coiled expansion springv 52, best shown in-- Figure 7, is secured at one of its ends to one of the horizontal bars II of the chassis, and at its other end to a collar 53 secured on rod 46. This spring 51 normally urges the rod 46 to the left in Figure 'I or in a clockwise direction as shown in Figure 2. When the invalid carrier is in motion, this braking mechanism is maintained inoperative. as shown in solid lines in Figures 2' and '7, the leg 50 being engaged by a stop 54 on the horizontal bar l3.

When it is desired to brake: the device, the rod 46 is manually drawn outwardly against the pressure of spring 52 so that leg. clears stop 54 whereupon the spring 52 turns the braking legs to their position shown in Figure 1 whose rubber stops-48 and Si contact the floor.

The cradle slats 35 may if desired be covered by waterproof rubber jackets 55 as best shown in section in Figure 5.

Operation When it is desired to remove a patient from his bed, the carrier is rolled sidewise to a position'in which the horizontal bars I3 of the. L-shaped end frame members II project under the bed. The

hanging the bed by turning the crank wheel 21 and the braking mechanism set to prevent movement of the carrier away from the bed. Lever 4| is then raised so that the cradle is tilted as shown in Figure 1, whereupon the patient may be easily slid thereon.

Since the braking mechanism does not posiherein shown and described is highly utilitarian in use, simple in construction and in operation and is reasonably economical in manufacture.

While but one specific embodiment of the invenbe understood that certain details of the construction shown maybe altered or omitted without departing from the spirit of this invention as the same is defined by the-following claims.

I claim: 4

1. .In a structure of the class described, a

'tion has been herein shown and described, it will chassis, and a horizontally disposed cradle pivot ally mounted on said chassis for axial tilting movement, said cradle comprising a center rod having its opposite ends pivotally mounted in spaced horizontally aligned bearings respectively on the chassis and a plurality of parallel spaced supporting slats having concave upper surfaces 7 and depending horizontally apertured webs fixedly embracing the center rod.

. 2. In a structure of the class described, a pair of L-shaped end frame members having vertical and horizontal portions and connected in spaced parallel relation by a cross bar, a laterally projecting arm supported by the vertical portion of each L-shaped member and overhanging its horizontal portion, horizontally aligned hearings on the free ends of said laterally projecting 'arms, means for raising and lowering said arms, and a horizontally disposed cradle pivotally mounted on said arms for axial tilting movement, said cradle comprising a center rodhaving its opposite ends pivotally mounted in said bearings respectively and a plurality of parallel spaced supporting slats having concave upper surfaces and depending horizontally apertured webs fixedly embracing the center rod. I

3. In a structure of the class described, a pair of L-shaped end frame members having vertical and horizontal portionsand connected in spaced parallel relation by a cross bar,-a sleeve vertically'slidablyembracing the vertical portion of each L-shaped member, means for simultaneously raising or lowering said sleeves, an arm secured to each sleeve disposed in overhanging relation to the horizontal portion of each L-shaped member, horizontally aligned hearings on the free ends of said arms, and a cradle supported by said arms, said cradle comprising a center rod having its opposite ends pivotally mounted in said bearings respectively and a plurality of spaced supporting slats having concave upper surfaces and deending horizontally apertured webs fixedly embracing the center rod.

4. In a structure of the class described, a pair of L-shaped end-frame members having vertical and horizontal portions and connected in spaced parallel relation by a cross bar, a jack screw turnably seated within the vertical portion of each L-shaped member, an arm supported by each jack screw in overhanging relation to the horizontal portion of each L-shaped member, horizontally aligned bearings on the free ends of said arms, a horizontally disposed cradle pivotally mounted on said arms for axial tilting movement, said cradle comprising a center rod having its opposite ends pivotally mounted in said bearings respectively and a plurality of spaced supporting slats having concave uppersurfaces and depending horizontally apertured webs fixedly embracing the center rod, and means for simultaneously turning said jack screws to synchronously raise and lower the same.

, 5. ma structureof the class described, a pair of L-shaped end frame members having vertical and horizontal portions and connected in spaced parallel relation by a cross bar, said vertical portions each being internally screw threaded, a jack screw turnabiy seated within the vertical portion of each L-shaped member in screw-threaded en-.-

gagement therewith, a bevel gear on the upper end of each jack screw, a sleeve vertically slidably embracing the vertical portion of each L- shaped member, a bearing in the upper end of each sleeve, a horizontally disposed shaft jour-.

nailed in said bearings, a crank wheel on said shaft, bevel gears on the opposite ends of said shaft in mesh with the bevel gears on said jack screws, an arm on each sleeve overhanging the horizontal portion of each L-shaped member,

horizontally aligned bearings on the free ends of said arms, and a horizontally disposed cradle pivotally mounted on said arms for axial tilting movement, said cradle comprising a center rod having its opposite ends pivotally mounted in the bearings on said arms respectively and a plurality of spaced supporting slats having concave upper surfaces and depending horizontally apertured webs fixedly embracing the center rod.

'6. In a structure of the class described, a pair of L-shaped end frame members having vertical and horizontal portions and connected in spaced parallel relation by a cross bar, an arm supported by the vertical portion of each L-shaped member overhanging the horizontal portion thereof, horizontally aligned bearings on the free ends of said arms, a horizontally disposed cradle pivotally mounted on said arms for axial tilting movement, said cradle comprising a center rod having its opposite ends pivotally mounted in said bearings respectively and a plurality of spaced supporting slats having concave upper surfaces and depending horizontally apertured webs fixedly embracing the center rod, a lever fulcrumed on one of said arms and extending laterally therefrom, and a link operatively connecting said lever and said cradle whereby movement of the lever eflfects the tilting of the cradle.

7. In a structure of chassis having a pair of spaced parallel supporting disposed cradle pivotally mounted on said arms for axial tilting movement, a lever fulcrumed on one of said arms, a hook having a pivotal connection with said lever and a pivotal connection with said cradle at one side of the cradle's pivotal mounting on said arms, said hook being movable with the lever to a raised the class described, a'

position in which said cradle is tilted, and also movable with the lever to a lowered position in which the hook engages said supporting arm to maintain the cradle in a non-tilted position.

8. In a structure of the class described, a chassis having a pair of spaced parallel supporting arms, one of said arms being cylindrical, a horizontally disposed cradle pivotally mounted on said arms for axial tilting movement, a sleeve slidably and turnabiy mounted on said cylindrical arm and having a helical slot therein, a guide pin on said arm extending into said helical slot, and a link pivotally connected to said cradle and to said sleeve whereby rotation of the sleeve eflects tilting movement of said cradle.

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