US2283511A - Invalid lifting device - Google Patents

Description

May 19, 1942. 1. SELLERS ETAL INVALID LIFTING DEVICE 2 sheets-sheet 1 Filed March 7, 1941 May 19, 1942. 1. SELLERS ETAL INVALID LIFTING DEVICE Filed March 7, 1941 2 Sheets-Sheet 2 Ira Sel/ers and 'Bessie .Sel/ers Patented May 19,

UNITED STATES PATENT OFFICE INVALID LIFTING DEVICE Ira. Sellers and Bessie Sellers, Walla Walla, Wash.

Application March 7, 1941, Serial No. 382,269

4 Claims.

The invention relates to devices for use in connection with beds for lifting invalids for any of the well known purposes, and the object of the invention is to provide a simple, inexpensive, efcient and easily operable device which may be readily engaged with a bed and as readily removed therefrom.

With the foregoing in view, the invention resides in the novel subject matter hereinafter described and claimed, description being accomplished by reference to the accompanying drawings,

Figure 1 is a side elevation.

Figure 2 is an end elevation looking from a point at the right of Figure 1.

Figure 3 is a detail vertical sectional view as indicated by line 3--3 of Figure 2.

Figure 4 is a perspective view showing one end portion of the frame structure and the linewinding shaft.

Figure 5 is a small plan view showing the invalid support.

Preferred features of construction have been disclosed in the drawings and will be specically described, with the understanding, however, that minor variations may be made within the scope of the invention as claimed.

The frame structure of the device includes two vertical end frames E and E'. Each of these end frames comprises a base bar 6 to rest on the usual side rails R. of a bed, at the ends of the mattress M, two standards 1 secured to the end portions of the base lbar 6 and projecting upwardly therefrom, the upper end portions of said standards being inclined inwardly toward each other as denoted at 8, and a shaft bearing 9 rigidly secured at I8 to the upper extremities of said standards.

A horizontal line-winding shaft I I is rotatably mounted in the two bearings 9, and two hoist lines I2 have their upper ends wound upon said shaft, the lower ends of said lines I2 being connected with the frame of a flexible invalid support I3 by means of chains or the like I4. Driving mechanism for the shaft II comprises a gear I5 secured to said shaft at the outer side of the end frame E, a pinion I6 under said gear and meshing therewith, a shaft I1 carrying said pinion, and a hand crank I8 for driving said shaft I1, these elements being associated with other elements of the structure in ways hereinafter described. There is also a vertically swingable stop arm I9 embodied in the structure to swing f ito the path of the crank I8 to hold the latter against retrograde rotation after the shaft II has been rotated to lift the invalid and the support I3, said arm I9 being mounted in a novel manner hereinafter described.

Two supplemental bearings 20 surround the shaft II in inwardly spaced relation with the bearings 9, and two brace arms 2| extend downwardly and outwardly from each bearing 20 and have their lower ends secured to the adjacent inclined ends 8 of the standards 1. Preferably each bearing 20 and the associated brace arms 2| are bent from a single metal blank, the arms being secured together under the bearing 20 by means of a rivet 22. The lower ends of these arms are provided with integral studs 23 which pass through openings in the standard ends 8 to secure said arms and standards together. Either the studs 23 may be upset or they may be provided with nuts 24.

Between the gear I5 and the adjacent bearing 9, there is a vertical bar 25, the upper end portion of said bar being formed with an opening 26 through which the shaft II extends. Toward its lower portion, the inner side of the bar 25 lies against the outer side of a horizontal bar 21 which is secured at 28 to the outer sides of the adjacent inclined ends 8 of the standards 1 of the end frame E. The bar 25 is formed with a bearing opening 29 under the gear I5, said opening being alined with another bearing opening 30 in a second horizontal bar 3| which is secured to the inner sides of the adjacent standard ends 8. A second vertical bar 32 is disposed at the outer side of the gear I5, at thelower portion of the latter, the lower end of this bar 32 being offset inwardly under the pinion I6.. The three bars 32, 25 and 21 are secured together by a bolt or the like 33, and directly below this bolt, the outer bar 32 is provided with an outwardly stamped portion which provides its inner side rwith a groove 34, which groove receives the pivot 35 of the Iarm I9, this pivot being thus turnably mounted betweenthe lower ends of the two vertical bars 32 and 25. The upper end portion of the bar 32 is formed with an opening 36 alined with the openings 29 and 30, and the shaft I1 is rotatably i rest against said arm, thus preventing retrograde rotation of the crank until it is again desired to lower the patient. A

From the foregoing taken in connection with the accompanying drawings, it will be seen that novel and advantageous provision has been made for carrying out the object of the invention, and while preferred details have been shown, attention is again invited to the minor variations.

What is claimed is:

1. In a hoist. two spaced vertical standards and a bearing rigidly carried by the upper ends thereof, one vertical bar having its upper end portion disposed against the outer end of said bearing and formed with an opening alined therewith, a line-winding shaft passing through said bearing and said opening and having a gear at the outer side of said vertical bar,.said vertical bar having a lower opening below said gear,

one horizontal bar secured to the outer sides of' said standards and disposed at the inner side of said vertical bar, a second horizontal bar secured to the inner sides of said standards and having an opening alined with said lower opening of said one vertical bar, a second vertical bar-at the outer side of said gear and having an opening alined with those of said one vertical bar and said second horizontal bar, a drive shaft rotatably mounted in these three alined openings and having a pinion meshing with said gear, said drive shaft having' an operating crank, and means securing the lower ends of the two vertical bars to said one horizontal bar.

2. Ina hoist, two spaced vertical standards and I a bearing rigidly carried by the upper ends thereof. one vertical bar having its upper end portion disposed against the outer end of said bearing and formed with an opening alined therewith, a line-winding shaft passing through said bearing and said opening and having a gear at the outer side of said vertical bar, said vertical bar having a loweropening below said gear, a horizontal bar secured to the outer sides of said standards and disposed at the inner side of said vertical bar, a second vertical bar at the outer side of said gear and having an opening alined with said lower opening of said one vertical bar, a drive shaft rotatably mounted in these alined openings and having a pinion meshing with said possibility of making i gear, said drive shaft having an operating crank, a vertically swingable arm swingable into the path of said crank to hold the latter against accidental retrograde movement, said arm having a lateral pivot, said second vertical bar being provided with a horizontal groove in its inner side, said groove receiving said arm pivot and holding it against said one vertical bar, and means securing the lower ends of the two vertical bars to said horizontal bar.

3. In a hoist, two spaced vertical standards and a main bearing rigidly secured to the upper ends thereof, a horizontal line-winding shaft extending through said main bearing, a supplemental bearing surrounding said shaft in spaced relation with said main bearing, a vertical hoist line secured to said shaft between said bearings, and two rigid brace arms secured to said supplemental bearing, said brace arms extending downwardly and outwardly from said supplemental bearing and-having their lower ends secured to said standards well below said main bearing, whereby said standards and said shaft are relatively braced and said shaft is held against downward springing under the weight of the load to be lifted by said line; said supplemental bearing and said brace arms being bent from a single metal blank, said brace arms being secured together immediately under said supplemental bearing, said brace arms having integral studs on their lower ends extending through openings in said standards to secure said ends to said standards.

4. In a hoist, a frame, a line-winding shaft rotatably mounted thereon and having a gear on one end, a drive shaft having a pinion meshing with said gear, said drive shaft also having a crank by means of which it may be driven, means secured to said frame and rotatably mounting said drive shaft, said means including two vertical bars at opposite sides of said pinion and having their lower end portions secured against each other, and an arm swingable into the path of said crank to hold the latter when desired, said ar'm having a lateral pivot, one of said lower end portions of said vertical bars being bowed away from the other of said vertical bars to form a bearing receiving said pivot.

` IRA SELLERS.

BESSIE SELLERS.

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