US1968477A - Invalid hoist - Google Patents

Description

H. E. COLE INVALID HOIST Filed Feb. 18, 1931 3 Sheets-Sheet 1 QH. E. COLE INVALID l-IOIS'I July 31, 1934.

Filed Feb. 18, 1931 3 Sheets-Sheet Willa July 31, 1934. COLE- 1,968,477

INVALID HOI ST Filed Feb. 18, 1931 5 Sheets-Sheet 3 gu9 1 z; F L

. e- 5%? l L} 8L??? $g20 2: M {P 0 Patented July 31 I934 PATENT orrios MTED STATES I 1,968,477 INVALID HOIST Herman E. Cole, Binghamton, N.'Y. Application'February 18, 1931, SerialNo. 516,762 4 Claims. (01. 5 85) My invention pertains to invalid hoists, and

it has for its object an appliance for lifting and positioning invalids and for raising, lowering or moving into different positions above the i bed for the purpose of resting, and various purposes, and of changing the position of the body and limbs, and in case of broken limbs,and

for bathing, and with the least possible annoyance or injury to thepatient, and also for carrying the invalid from room to room, and to enable the patient to assume different positions, such as sitting, or reclining, and by this device the patient may be handled free and independent of the bed, and moved from one side of the bed to the other in restful position without manual contact with the patient, and also to enable the patient to be placed in a sitting position with the limbs resting horizontally upon the bed,

and to enable the patient to be easily handled by one person. I

With these objects in view my invention consists of the following novel features of construction and arrangement of parts as will-be hereinafter fully described and set'forth in the claims.

Reference being had to the accompanying-drawings in-whichz- H Fig. 1 is a side view of my-device. Fig. 2 is an end View of my device. a Fig. 3 is an end view elevation of a fragmentary part of'mydevice. H I

. Fig. 4 is a front view of a modified detailed part of my device.

Fig. 5 is a plan View of a part of my device. .Fig. 6 is a side view of a fragmentary part of my device.

.. Fig.7 is a front view-.of one form :of crank mechanism for my device.

Fig. 8 is an edge view of the construction shown in Fig. '7; Fig. 9 is'a side View of adetailed part of my device.

Fig. 10 is aside view of a detailed part of my 'device' Y Fig. 11 is a fragmentary part of my device partly in cross section.

Referring to the drawings, A designates a frame structure having a pair of triangular shaped end portions a, a, comprising side bars 2, 2, and a horizontal cross bar 3; The side bars 2-, 2, of each end portion may be secured together at their upper ends in any suitable manner, while their lower ends are spaced apart and joined to the cross bar 3. Castors 4, 4, are provided on the bottom surface of each side ..bar 2 for the purpose-hereinafter explained. A

triangular shaped end plate 6 is arranged between each pair of side bars 2, 2, at the apex of each end-portion a, a, and these plates are provided with-suitable openings to receive the opposite ends of a pair of horizontal rods or shafts 5 and '7. The rod-3 has its opposite ends fixedly secured to the plate 6 at the apex of the triangular end portions (1, a, while the lower or rotatable shaft 7 has its opposite ends journaled in suitable openings at the lower portion of the end plates 6. In order to stiffen the frame structure, I provide suitable braces 10, each of which has one of its ends secured to a side bar 2 and its other end fixedly secured to the shaft 5.

A plurality of spaced central pulleys 11 are rigidly mounted on the rotatable shaft 7 and adapted to rotate with the latter.

At spaced points along the shaft '7, where the respective central pulleys 11 are mounted, I provide triangular shaped transverse spreader supports 12. Each of these supports consists of a pair of spaced parallel horizontal bases 13, and two pairs of spaced parallel side bars 13'. These supports are connected to the rod 5 and shaft '7 by means of a pair of spaced vertical parallel arms 8o 12, each of which may be formed integral with the base and side arms of the support, as shown in Fig. 3. The upper and lower portions of each armare provided with openings to receive the shafts 5 and '7, and in this manner the supports 12 will be held in rigid position on the rod and shaft Band 7 respectively. A side pulley 11' is arranged at the lateral extremities of each spreader support 12 and is provided with the usual shaft, (not shown) which is journaled in suitable openings in the ends of each horizontal base 13.

On each of the central pulleys 11, I removably secure lifting tapes 14. One of the tapes on each central pulley is attached to' the under surface of the latter, and extends outwardly over one of the side pulleys 11 of that particular support, whereas the other tape is secured to the upper surface of the central pulley and extends outwardly in the opposite direction over the other side pulley 11' of the support, as clearly shown in Fig. 3.

A spreading bed frame B comprising a stretcher C of canvas or the like, is adapted to be raised in 9, for receiving the threaded pins 20 which project from the ends of the bars 18. In order to provide an adjustable means for stretching the canvas tightly, I furnish each end bar 18 with ferrules Z), and threaded pins 20. The inner end of each pin extends into an opening in the end of the l8, and its outer end is adapted to project through an inner nut 18 within the ferrule b, and into the opening of the side bar 16. A nut 03 is mounted on the outer threaded end of each pin 20, and when this nut is turned in a certain direction, the side bars 16 will be forced away from the end bars 16, thereby stretching the canvas to the esired extent.

lower ends of the tapes 14 can be connected to the sides of the stretcher frame by means of snap fasteners 15, and it is obvious that when the shaft 7 is turned, the tapes will lift the stretcher frame. The shaft may be turned, as shown in Figs. 1 and 9, by a crank 8 having a handle 9, and may be held in adjusted positions by any suitable device such as a ratchet and pawl mechanism 9a.

Instead of connecting the crank handle directly to the shaf I may use the construction shown in Figs. d, 7 and 8. In this arrangement, a gearing mechanism G comprises a large gear 30 fixed to the shaft 7 and arranged at one side of one of the end plates 6. This gear meshes with a smaller gear 31, which is fast on a crank handle operated shaft 32 which is journaled in the plate 6. A ratchet wheel 33 is also fixed to the shaft 32 and cooperates with a pawl 34 which is pivoted on the plate 6 and is held in engagement with the ratche wheel by a spring 36 which has one of its ends connected to the pawl and its other end connected to said plate 6. A handle 35 is fixed to the pawl for use in releasing it from the ratchet wheel.

In the embociment of the invention illustrated in Figs. 5, 6 and 9, the ends of the tapes are connected to the stretcher frame B by snap fastenings 33a, and it will be noted at the head end of the frame, I have designated the straps by the numerals 29. These straps may be connected to the upper portion of a pivoted head rest E by means of snap fastenings 33b.

The upper end portion of the head rest may also be connected by chains 340: having snap fasteners 35a, with loops 33a on the side bars of the stretcher frame. When the parts 35a and 33a are connected, it is obvious that the straps or tapes 29 will lift not alone the head rest, but the head portion of the stretcher frame.

I prefer to provide the head rest with a frame 26 consisting of an end bar 25 and side bars 27, and if the head rest is formed of a canvas sheet or the like, the pivotal joint may be made by sewing its lower edge to the canvas sheet C by a line of stitching as indicated at 28.

In order that the apparatus may be used with a bed pan, a suitable opening D in the canvas sheet C may be combined with a swinging flap 21 that can be held in closed position by any suitable fastening devices 22.

When a patient is transported, the flap 21 may be reinforced and held in closed position while supporting the patient by means of a canvas cradle F which extends beneath the stretcher frame at the point where the flap is located. When the cradle F is used, it may be secured to the lower ends of the middle one of the straps 14, as indicated Fig. 6, and for convenience in disclosure, I have marked these straps 29b in Fig. 6.

Whenever it is desirable to lift the head rest as indicated in Fig. 9, the straps 29 can be removed from their side pulleys 11 and wound on their central pulley to shorten the same as indicated in Fig. 9, and then the straps can be again trained over their side pulleys and be attached to the head rest by the snap fasteners as indicated in that figure.

From the foregoing it is believed that the construction, operation and advantages of the invention may be readily understood by those skilled in the art, and it is apparent that changes may be made in the details disclosed, without departing from the spirit of the invention, as expressed in the claims.

Having thus described my invention, what I claim as new and for which I desire Letters Patent is as follows:

1. A stretcher hoist including supporting end members, a supporting rod connecting the upper ends of said members, a rotatable shaft journaled in said end members and arranged below said rod, triangular cross frame members each comprising two similar spaced elements carried by the supporting rod and connected to said shaft, central pulleys fixed to the shaft and positioned between the spaced elements of the cross frame members, side pulleys carried by the ends of the cross frame members between its spaced elements, stretcher supporting straps wound about the central pulleys, trained over the side pulleys and having ends depending from the latter, and detachable fastening elements connected to the lower ends of the straps and adapted for connection to a stretcher.

2. A stretcher hoist including triangular supporting end members, a supporting rod connecting the upper ends of said members near their apices, a rotatable shaft journaled in said and members and arranged below said rod, triangular cross frame members free at their ends carried by the supporting rod and connected to said shaft, central pulleys fixed to the shaft and positioned within the cross frame members, side pulleys carried by the ends of the cross frame members, stretcher supporting straps wound about the central pulleys, trained over the side pulleys and having ends depending from the latter, and detachable fastening elements connected to the lower ends of the straps and adapted for connection to a stretcher, each strap, when removed from its side pulleys, being adapted to be disconnected from the stretcher and wound on its central pulley for shortening the straps independently of the other straps.

3. A stretcher hoist including triangular supporting end members, a longitudinally extending supporting rod connecting the upper ends of said members, a rotatable shaft journaled in said end members and arranged parallel to and below said rod, triangular cross frame members carried by the supporting rod and connected to said shaft, central pulleys fixed to the shaft and positioned within the cross frame members, side pulleys carried by the ends of the cross frame members, stretcher supporting straps wound about the central pulleys, trained over the side pulleys and having ends depending from the latter, and detachable fastening elements connected to the lower ends of the straps and adapted for connection to a stretcher.

4. A stretcher hoist including supporting end members, a supporting rod connecting the upper ends of said members, a rotatable shaft journaled in said end members and arranged below said rod, triangular cross frame members carried by the supporting rod and connected to said. shaft, central pulleys fixed to the shaft and positioned within the cross frame members, side pulleys carried by the ends of the cross frame members, stretcher supporting straps wound about the central pulleys, trained over the side pulleys and having ends depending vertically from the latter, detachable fastening elements connected to the lower ends of the straps and HERMAN E. COLE.

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