US2607397A

US2607397A - Chair construction having a spring support

Info

Publication number: US2607397A
Application number: US51143A
Authority: US
Inventors: Schneider Charles
Original assignee: Individual
Current assignee: Individual
Priority date: 1948-09-25
Filing date: 1948-09-25
Publication date: 1952-08-19
Anticipated expiration: 1969-08-19

Description

c. SCHNEIDER CHAIR CONSTRUCTION HAVl [NG A SPRING SUPPORT 2 SHEETS-SHEET 1 Aug. 19, 1952 Filed Sept. 25, 1948 I INVENTOR. Cimegss SCHNEIDER,

ATTORNEY.

g- 19, 1952 c. SCHNEIDER 2,607,397

CHAIR CONSTRUCTION HAVING A-SPRING SUPPORT Filed Sept. 25, 1948 2 SHEETSSHEET 2' INVENTOR. ,CHAELES SCHNEIDER,

a? lull patented Aug. 19, 1952 I 2,607,397 I CHAIR'GONSTRUCTION HAVING A SPRING SUPPORT Charles Schneider, Los Angeles, Calif. "Application September 25, 1948, Serial No. 51,143

. 1. Thisinvention relates to improvements in chair construction and more particularly to a separable frame which may be readily attached to a fixed base and to a chalr body for affordingfioating and yieldable support to the chair .body.

An object of this invention is to provide an improved chair constructionby which a-chair body is rockable forwardly and-backwardly and side movement is yieldably permitted without the-use of curved rocker elements. Y

A further object of this invention is to provide an improved chair construction which is simple in structure, easy to manufacture, and which may be readily assembled. 1 l v Still another object of this invention is to provide a chair construction wherein a frame is provided which permits a chair body to be resiliently supported from a fixed base; and which is compact in design toallow the chair body to be supported at a relatively low level.

Other objects of this invention will become apparent to those-skilled in the art from the following description and claim.

In the drawings:

Fig. l-is a perspective view of a fixed base and suspension'frame embodying my invention.

Fig. 21s a sectional view bisecting a chair construction embodying my invention, .the section being taken substantially in a vertical plane longitudinally through the chair.

Fig. 3 is a fragmentary transverse sectional view taken in a vertical plane showing adifferent arrangement of the suspension frame.

Fig. 4 is a fragmentary vertical longitudinal sectional view of a chair construction embodying a different modification of this invention.

1 Fig. 5- is a fragmentary sectional view of the structure shown in Fig. 4, the section being taken in a vertical transverse plane indicated by the line V-V of Fig. 4.

Fig. 6 is a fragmentary sectional view showing a different arrangement of the modification shown in Fig. 4'.

Referring more particularly to the drawings, a chair, generally indicated at 2, may be of usual form and comprises a seat 4, a back 6, and side arms 8. The chair body 2 may also include a chair frame comprising a front transverse member l0 and a rear transverse member l2 extending from the top of the back 6 almost to the floor level. The front and rear members I0 and 12 are connected intermediate their ends by longitudinally extending spaced members 14.

A fixed base is provided for the chair body 2, said base being slightly shorter in length than the lar form.

1 Claim. (Cl. 155-54) internal dimension between the front and rear transverse members [0 and [2, in order to permit said members l0 and [2 to partially enclose the fixed base. The fixed base may comprise a pair of spaced, longitudinally extending rails l6,

shown here as being simple members of rectangu- It is understood, of course, thatthe spaced rails [6 may be formed of any desired shape.

A frame, generally indicated at I8, is provided for yieldingly, resiliently and movably supporting The frame l8 maybe sepathe chair body 2. rately constructed and forms a rigid, rectangular, hollow structure extending between and connected to the rails l6. As shown, theframe may be made of angle iron, the side angle; irons 26 being suitably attached or connected to the rails l6 adjacent their top as'by wood screws or bolts and nuts, not shown. The side angle irons 26 may be connected by transverse front and rear angle irons or outer members 22 and 24'.

Resiliently supported midway between the front and

rear angle irons

22 and 24 of the hollow frame I8 is a pair of spaced, longitudinally dispose-d, parallel, metal stirrup straps 26'lying in a substantially horizontal plane. The rear end of each strap 26 may be connected to one end of a rear horizontally disposed, helical spring 28, the other end of said spring 28 being connected in anyv suitable manner to the adjacent corresponding.

portion of. the rear angle iron or outer member 245 Similarly, the front end of each strap 26 may be connected to one end of a front, horizontally disposed, helical spring 36', the other end of said spring 30 being suitably connected to the front angle iron or outer member 22. The front and

rear springs

36 and 26, respectively, and associated strap 26 are aligned longitudinally and are disposed substantially parallel to the side angle irons. It should be noted that the stirrup straps 26 are suspended in relatively wide spaced relationship. v

Each strap 26 affords a seat on its top surface for a vertically disposed inner'supporting member 32 which extends between each strap 26 and the bottom of the seat of the chair frame. Each vertical supporting member 32 may be of any suitable shape or material and may be secured to a longitudinal member IA of the chair frame and strap 26 by means of a plurality of spaced I that the suspended stirrup straps 26 positioned within the rigid hollow frame resiliently support the chair body 2 in such a manner that the body simple, compact structure provided by using a rigid, hollow frame with stirrup straps suspended rup straps 26 (Figs. 1 and 2) or the L-shaped clip 38 (Figs. 4 to 6) suspended within the frame may be connected as in the first arrangement to the chair frame and as in the second arrangement where frame I3 is inverted and the inner support member may rest directly upon a floor surface.

It will be understood, of course, that although the frame is shown and described as being rectangular in shape, the frame may be made of any shape which is most suitable for use in a particular chair construction, such as trapezoidal, where the side members are inclined slightly toward each other.

in substantially the same plane as the frame provides for a chair construction which has a relatively low seat and yet affords a floating support without interference with the suspension means.

A difierent arrangement of the frame I8 is shown in Fig. 3, wherein'the frame I8 is inverted or turned upside down. In this view it will be noted that the side angle irons are attached to spaced, longitudinally extending chair frame members 34 in any convenient manner, such as by wood screws; or bolts and nuts. The spaced coil springs and 28 support therebetween spaced stirrup straps 26 as described in the previous modification.

In this arrangement the spaced stirrup straps 26 may be attached in suitable manner to spaced inner supporting members 36 which rest upon the floor surface. The supporting members may be of the same shape and size as rails l6 shown in Fig. 2. r

A different modification of the suspension frame is shown in Fig. 4, wherein an L-shaped metal clip 38 is directly connected to opposed inner ends of the aligned

coil springs

30 and 28, as at 40. The short leg of each L-shaped clip may be attached to a longitudinally extending chair frame member 42 intermediate its ends in any suitable manner. The suspension frame I8 is shown attached to base members It in a manner similar to that described in Figs. 1 and 2. It will be noted in this modification of the suspension frame that the stirrup strap 26 has been eliminated and the L-shaped member 38 serves as a direct connection between the inner ends of the aligned

springs

28 and 30 and the chair frame member.

A different arrangement of the modification described in Fig. 4 is shown in Fig. 6 wherein the frame l8 has been inverted so that the side angle irons may be connected to chair frame members as 34 in Fig. 3, and the L-sh'aped member 38 connected to the springs, 30 and 28 may have its short leg 44 resting upon a floor surface or a suitable block of wood or pad 46, as shown.

It will thus be apparent that the frame [8 may be inverted or turned upside down so that the frame in the second arrangement may be connected directly to the chair frame instead of base members l6, as shown in Figs. 1 and 2. Likewise, the inner supporting member carried by the stir- It is also to be understood that in certain chair constructions the side angle irons may be omitted and the front and rear angle irons or outer members between which the stirrup straps are suspended may be connected directly to front and rear transverse structural members of a chair frame, especially where the chair frame itself may provide the required rigidity. In such an arrangement the stirrup straps or inner members may be connected to base rails seated upon the floor or other supporting surface.

Unit I8 may be sold as an article of commerce to manufacturers of furniture.

It will be understood by those skilled in the art that Various changes and modifications may be made in the structure described above which is merely for illustrative purposes only and it is intended that the invention will not be limited except by the scope of the claim appended hereto.

I claim:

As an article of manufacture, a flat preassembled unitary frame construction for use in furniture, comprising: a rectangular rigid open frame including inter-connected side and end angle iron members, each disposed with an inwardly extending portion lying in a common plane; a plurality of fiat metal spaced stirrup strips lying in said plane in spaced parallel relationship with said side members; a spring connected to each end of each stirrup strip and to the adjacent end member of the frame, the axis of each spring normally lying in the plane of said strips; and means for connecting a chair frame to said strips.

CHARLES SCHNEIDER.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 2,130,022 German Sept. 13, 1938 2,164,163 Piper June 27, 1939 2,454,932 La Valliere Nov. 30, 1948 FOREIGN PATENTS I Number Country Date 594,616 Great Britain Nov. 1'7, 1947