US938172A - Chair attachment. - Google Patents

Description

F. SGHULZ.

' CHAIR ATTACHMENT.

APPLIUATION FILED APR. 10,1908.

Patented Oct. 26, 1909.

2 SHEETS-SHEET l.

Patented Oct. 26, 1909.

2 SHEETS-SHEET 2.

7 1- a If FRITZ SCI-IULZ, OF CHICAGO, ILLINOIS.

CHAIR ATTACHMENT.

Specification of Letters Patent.

Patented Oct. 26, 1909.

Application filed April 10, 1908. Serial N 0. 426,345.

by declare the following to be a full, clear,

and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to a novel construction in a device adapted for use onchairs to afford a comfortable support for the limbs, the object being to provide a simple, cheap, light, and efiicient device of this character which is equally adapted for everyday use in or about the home, hospital and on board ships, etc., and consists in the features of construction and combinations of parts hereinafter fully described and claimed.

In the accompanying drawings illustrating my invention: Figure 1 is a perspective view of my device showing the same dis-.

posed on a rocking chair. Fig. 2- is a fragmentary detail perspective view showing the connection between two parts of my device. Fig. 3 is a fragmentary detail perspective view showing a modification in the construction. Fig. 4 is a perspective view showing a modified form of construction. Fig. -5 is a fragmentary detail bottom plan view showing the manner of securing the device to the bottom of the chair seat. Fig. 6 is a sectional view on the line 6-6 of Fig. 5. Fig. 7 is a transverse section on the line 77 of Fig. 6-. Fig. 8 is a detail view of a washer employed.

My said device comprises a frame preferably made of steel and consisting of two side bars A connected at suitable points by means of cross bars B and C, the cross bar B being disposed at one of the ends of the bars A and equipped with rubber tubes D slipped over the same and resting on the ground. Said bars A are curved at one end portion as at E, said portion serving as the supporting means for one end of the frame, the other end thereof being supported on the seat F of a chair G. Such support is accomplished in any suitable manner as, for example, by pivotally connecting to said last named end of said frame a seat portion H consisting of a wire frame inclosed in a suitable bag or covering I and which rests upon 7 inclusive, as will be hereinafter described. Stretched over the side bars A at the raised portions thereof is a cover J upon which limbs of the occupant of the chair are adapted to rest. Said side bars A are preferably made of flat elastic steel bars of dimensions such as will enable it to yield readily to strains imparted by rocking the chair without causing the leg portions to move on the floor. The said wire frame over which the bag I is inserted is preferably rectangular and consists of a single piece of wire bent to U-shape, the ends of which are opposed but not joined, and constitute short projections N at the free end of each of the side rails of the frame. The said projections I enter the loops L at the ends of the bars A.

The latter also receive the free ends of a bar K which is preferably driven into said loops and serves to maintain the seat supported ends of the bars in proper relative position, that is, against movement toward each other. i w

The device constructed as shown in Fig. -1, may be transferred from one chair to another with ease and is adapted to fit all chairs.

If it is desired to secure the device to a given chair the supported ends of the side bars A are distorted to provide vertically disposed projections 0 having openings therein to receive the shaft P on which a tube Q is telescopically disposed, the latter serving to hold said ends of said bars a given distance apart. The shaft P is provided with recesses R registering with the projections S of the plate T secured to the bottom of the chair, the said projections being provided with openings and with recesses U communicating with said openings and through which the portions of said shaft P reduced by said recesses R are adapted to pass so that by imparting movement to said shaft longitudinally, a distance equal to the thickness of said projections and inserting washers V over the recessed portions, sai shaft is held against removal as will be obvious. Nuts W may be disposed on the ends of said shaft and serve to hold same against longitudinal movement and consequently against displacement.

llt

The free ends of the side bars A are pref erably bent to an ogee curve as shown in Fig. 4 to impart elasticity.

The device is simple and afiords the occupant of the chair a great deal of ease and comfort as it supports the limbs from the ankles up and causes the knees to be slightly bent. In this manner the limbs do not tire of the position, the main support being under and immediately above and below the knees.

The device is particularly adapted for use in hospitals and sanitariums, on board ships, and in and about the home and hotel.

In order to enable the device to be folded to occupy less space, each of the side bars A may consist of two sections hinged together, as at X in Fig. --3-, said hinged portion being suitably locked against movement when the device is in use by means of the hooks Y pivotally secured to one part and engaging the projection Z of the other part.

I claim as my invention: 1. A device of the kind specified, comprising two bars of spring metal, cross- 7 2. device of the specified, comprising two bars of spring metal secured together by means of cross-pieces, one end of each of said bars being supported upon the chair-seat and the other end portion being bent to an'arc of about ninety degrees and resting at its extremity on the floor, means on the latter engaging the floor to prevent relative movement thereof and a hammock suspended between said bars between the ends thereof, said hammock being substantially horizontally disposed and adapted to support the limbs of the occupant of the chair.

3. A device of the kind specified comprising an elastic metal frame consisting of two side-bars, cross-bars connecting, the same at intervals, a covering spanning said side bars, said frame being supported at one end on the chair-seat and having its free end portion extending downwardly and resting on the floor, said floor supported end portion being adapted to yield to the thrust movements of the horizontal portion as the chair is rocked,

one of said cross-bars connecting the floor supported ends of saidside-bars and friction members mounted. on said last-named crossbar and engaging the floor to prevent movement of said end of said frame thereon.

In testimony whereof I have signed my name in the presence of two subscrlbing witnesses.

FRITZ SOHULZ.

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