US1032243A - Combination spring-seat and spring-back. - Google Patents

Description

G. W. ROBERTSON. COMBINATION SPRING SEAT AND SPRING BACK.

APPLICATION FILED $EP-T.8,1910.

HIM.

ATTORNEYS Patented July 9, 1912.

Specification of Letters Patent.

Patented July 9, 1912.

To all whom it may concern:

Be it known that I, GEORGE W. ROBERT- SON, a citizen of the United States, and a resident of Mount Vernon, in the county of Posey and State of Indiana, have invented certain new and useful Improvements in Combination Spring- Seats and Spring- Backs, of which the following is a specification.

My invention is an improvement in com bination spring seat and spring back, and consists in certain novel constructions, and. combinations of parts, hereinafter described and claimed.

The object of the invention is to provide a combined spring seat and back, so constructed that the back may move from side to side in the direction of its plane, as well as laterally in a direction perpendicular to its plane, whereby to conform with the vertical or direct up and down movement of the seat.

Referring to the drawings forming a part hereof, Figure l is a transverse vertical section of the improvement. Fig. 2 is a perspective view of a part of the frame. Fig. 3 is a similar view of a portion of the seat and back, showing their connection with each other. Fig. 4 is a perspective view of a spring holding strip. Fig. 5 is a similar view of a spring and its holding means, and Fig. 6 is a side view of a modifiedform of spring which may be-used in back in-place of coil springs.

In the embodiment of the invention shown in the drawings. both the seat and the back are composed of a plurality of open rectangular frames 1 shown in Fig. 2, each frame being of a shape and size corresponding to the shape and size of the seat.

The side members of each frame are connected by cross strips 2 (Fig. 4), each .of which extends from one side member to the opposite member, and each end of the strip is bent around the side member as shown at I 3. The strips connecting opposite side members are arranged in spaced and parallel relation, as shown, and cross the strips connecting the other side members at right angles- Each strip 2 is provided with a plurality of lugs 4, each of which is struck up from the strip as shown. The lugs are arranged in pairs, apair adjacent to each crossing of the strips, and with one member of the pair on one side of the crossing, and the other memher on the other side. By this arrangement Application filed. September 8, 1910. Serial No. 581,032.

four lugs are provided at each crossing of the strips, and as the members of each pair are oppositely arranged and face each other, the four lugs face inwardly as shown. The frames 1 are arranged in superposed relation, and are held spaced apart by coil springs 5.

Each of the springs 5 is of smaller diameter at its center, and increases in diameter toward its ends, and one end of each spring is held to one frame by the lugs 4 engaging the endmost spiral, and the other end to the other frame in a similar manner.

The lower frame of theseat rests directly upon the support 6, and the rear frame of the back rests against the back 7 of the support. The upper frame of the seat and the front frame of the back are connected at their meeting edges as shown in Fig. 3.

A strap 8 is secured to the lower end of each of the vertical strips 2 by rivets 9 or other suitable means, and each strap extends beyond the adjacent member of the said frame, and is provided with an opening 10. A strap 11 is secured to each of the strips 2 of the upper frame of the seat that run from front to rear, and the free end of each strap 11 extends outside of the frame, and is curved downward as shown at 12.

The'free ends of the straps 11 engage the openings 10 of the straps 8, and the adjacent side member of the upper frame of the seat limits the rearward movement of the said upper frame by its engagement with the straps 8.

With the above described arrangement, the upper frames of the back and seat may move toward and from the lower frames, and may also move laterally with respect to the said lower frames. When the seat is depressed, that is, when the upper frame moves downwardly, the front frame of the back is carried down with the said upper frame.

The movable frames oft-he front and back move with each other in every direction. When the front frame of the back is moved reafwardly, the upper frame of the seat is also carried rearwardly. With the arrangement specified, the disagreeable rubbing of the occupants back against the back of the seat is eliminated, as is also all rubbing.

The seat and back are upholstered as shown at 13 and 14, respectively, and the upholstering is carried over the edges of both seat and back as shown at 15, so that all of the metal parts are hidden from view.

In the construction shown in Fig. 1, the upholstering covers the ends of the seat and back, extending across the space between the frames, and forms the only connection between the frames. The said strips 16 are substantially U-shaped, and the arms 17 of the strips are secured to the frames by rivets 18, or other suitable means. It is evident that the frames comprising the improved seat and back may be of any desired shape and dimensions, and the frames may be covered with any suitable or desired covering. Both of the parts mentioned are to be covered with padding 19 as shown in Fig. 1. The upper frames of the seat and back may also be connected in any suitable or desirable manner, but the connection is preferably so arranged as to permit a limited sliding movement of the back frame with respect to the seat frame.

In Fig. 1, the lower or rear frame of the back is shown as hinged at 20 to the back support 7, at the upper edge thereof. Thus the back cushion may be swung upwardly for cleaning or other purposes.

To permit the above described movement of the back, the seat cushion is removed by pulling the said cushion directly forward until the straps 11 are disengaged from the openings 10 of the'straps 8.

The seat and back may be in one or more sections as desired, in accordance with the size of the parts. The sections are placed with their edges abutting. The cut away portion 21 of the seat is to permit articles to be stored in the box 6, and will in actual use he covered by a hinged lid.

It is to be understood that-considerable changes can be made in the construction, without departing from the spirit of the invention.

In the construction shown in Fig. 6, the springs 5 are omitted in the back, and are replaced by the substantially U-shaped resilient straps 16, which connect the ends of the corresponding straps 1 of each frame.

I claim 1. In seat construction, a seat and a back,

each. consisting of a pair of superposed open frames, a plurality of series of strips arranged transversely of each frame, the members of one series being at right angles to the members of the other series, spiral springs between the members of each pair of frames, and a connection between the adj acent edges of the upper frames of the seat and the back, said connection comprising a plurality of straps connected with each frame and extending toward the other frame, the straps connected with the back frame having openings for receiving the 'strapsconnected with the seat frame, said last-named straps having their free ends bent downwardly to prevent disengagement of the straps.

2. In seat construction, a seat and a back,

each consisting of a pair of superposed frames, springs between each pair of frames for holding them in spaced relation, and a connection between the upper frames of the seat and the back, said connection COIIIPIlS- ing a plurality of straps secured to and extending from each frame toward the other frame, the straps of the back frame having openings through which the straps of the seat frame extend.

3. In seat construction, a seat and a back, each consisting of a frame, springs for supporting each of the said frames, and a connection between the said frames at their adjacent edges, said connection comprising straps secured to each frame and extending toward the other frame, the straps of the back frame having openings through which the straps of the seat frame extend.

4. In seat construction, a seat and a back, each consisting of a frame, springs for supporting each of the said frames, and a connection between the said frames at their GEORGE w. ROBERTSON.

Witnesses HENRY KLING, GEO. W. CURTIS.

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