US2675857A

US2675857A - Resiliently mounted slung seat chair

Info

Publication number: US2675857A
Application number: US154571A
Authority: US
Inventors: Bloom Benjamin
Original assignee: Individual
Current assignee: Individual
Priority date: 1950-04-07
Filing date: 1950-04-07
Publication date: 1954-04-20
Anticipated expiration: 1971-04-20

Description

A ril 20, 1954 B. BLOOM RESILIENTLY MOUNTED SLUNG CHAIR Filed April 7, 1950 INVEN TOR.

BENJAMIN BLOOM JLMW /ITTOEA/Bf Patented Apr. 20, 1954 RESILIENTLY MOUNTED SLUNG SEAT CHAIR Benjamin Bloom, Brooklyn, N. Y.

Application April 7, 1950, Serial No. 154,571

8 Claims.

This invention relates to an article of furniture, and more particularly, to a chair of the type in which the seat structure is swingably suspended from a cantilever arm.

It is an object of the invention to provide a swingable seat in which the center of gravity of a person sitting in the chair will be below the point of support for the seat thus producing a very stable, yet swinging, rocker-like chair, and when the seat is at rest the center of gravity is always in the vertical plane of the hinge or hingepin permitting complete relaxation for the person.

Another object is to provide a chair, the base member of which and the arm and seat members or" which are so arranged that added softness or comfort is provided for the user.

Still another object is to provide a chair of the above type of simple construction, which may be readily assembled so that the cost of manufacturing is greatly reduced.

For a fuller understanding of the nature and objects of the invention, reference is had to the following detailed description, in connection with the accompanying drawing, in which:

Fig. 1 is a perspective view of a chair with part of the fabric cut away.

Fig. 2 is an enlarged sectional view taken through line 2-2 of Fig. 1, showing one means of attaching the fabric to the tubing.

Fig. 3 is an enlarged sectional view taken through line 33 of Fig. 1, showing one means of attaching the base to the swingable seat.

Fig. 4 is a perspective view of a modified chair of the same type showing another means of attaching a fabric to the frame.

The illustrated embodiment of the invention comprises mainly two pieces, to wit a base or under frame and a swingable or slung seat. The base consists of a bent tube having a rear base portion In and side base portions I I, I2 bent forwardly at right angles from the rear portion I along the same horizontal plane. Integral with the side and rear base portions of the base and bent upwardly and rearwardly therefrom are leg portions I3, I4. Approximately at the center point of the side base portions I I, I2 and integral with the leg portions and bent upwardly and vertically are end portions or side arms I5, I6. The upper hollow end of the end portions I5, I6 may be internally threaded and plugged with an externally threaded terminal I! having a projecting plate I8 integraltherewith, as shown in Fig.

3. Plate I8 has a transverse hole therethrough.

The swingable or slung seat consists of bent tubing having a front portion I9 and side por tions 20, 2I bent rearwardly at right angles to the front portion and along the same horizontal plane. Integral with the side portions of the seat and bent upwardly at approximately right angles therefrom are

rear portions

22, 23 and bent forwardly from the rear portions are

cantilever arm portions

24, 25 with downwardly and angularly bent

front ends

26, 27.

Approximately in the center of each of the arm portions 2%, 25 and depending therefrom is an inverted U-shaped plate 28, as shown in Fig. 3, which may be brazed onto the arms 2d, 25 or attached by any other well known means. Plate 23 has a hole transversely through the arms thereof of the same size as the hole in plate I8 and the spacing therebetween is sufficiently wide to accommodate the plate I8 with a washer 29 and 39 on each side thereof. The opposed ends of the hole of plate 28 are countersunk and 'a pin 31 is adapted to fill the holes of plates I 8 and 28 and hold the base and seat together in swingable relation to each other.

A fabric 3|, such as canvas, or any other desirable and well-known material may be attached between the side portions 20, 2! and the

rear portions

22, 23 by any known means. In Fig. 2 there is shown one means for illustrative purposes only. This means consists of a slitted tubing, the slitted

ends

32, 33 being bent inwardly leaving rounded

opposed edges

34, 35. The slitted tubing provides resiliency between the opposed sides of the tubing which permits the edges of the fabric 3i to be wedged between the rounded edges 3 35 by a series of wedges 36 or a continuous wedge, thus retaining the fabric 3i firmly between the side and rear portions, 20, 2!, 22, 23, respectively. The front edge of the fabric ii is wedged to the front portion I9 in the same manner. V

In Fig. 4 another means of attaching a fabric by lacing will be hereinafter described.

In Fig. 4, there is shown a modification of the chair shown in Fig. 1. It is the same in all respects except that the tubing I22, I23 is bent upwardly at an angle greater than a right angle to the side portions I20, I2I and is higher and bent again. downwardly upon itself providing.

backportions I31, I38. The cantilever arm per tions I24, I25 are integral with the back portions I31, I38 and are otherwise formed like arm portions 2d, 25. The fabric I31 has a series of eye 7 lets I39 adjacent'the fabricgedge and the tubing I58, I20, I2I, I22, I23 hasa series of holes M 3 uniformly spaced apart permitting the fabric Iti to be laced to the tubing by lacing M l, as shown.

It is further obvious that instead of the pin 31 and plates 18, 28 a freely rotating connection, such as a ball and socket joint may be used, or any other known means.

Various changes and modifications may be made in the details of construction and arrangement of parts without departing from the general spirit of the invention, such as the substitution of plywood instead of tubing bent substantially in the form of the tubing shown, or certain types of plastic material or other similar material. Also, the tubing [22, I23 in Fig. 4 need not be bent downward upon itself to form back portions I31, I38. The rear ends of the cantilever arms may be brazed or otherwise joined approximately in the center of the tubing lltl', I33,

I claim:

1. In an article of furniture, a base and a swingable seat structure, said base consisting of bent tubing with two opposed side arms bent upwardly approximately over the center of said base, said seat structure having two opposed cantilever arms, said seat structure being swingably supported by said cantilever arms which are piv otally connected to said opposed side arms of base, said base and seat structure each bent from a single piece of tubin 2. In an article of furniture, a base and a swingable seat, said base consisting of a single piece of bent tubing a portion of which forms a. ground engaging portion and another portion comprising two opposed side a "ms, said side arms bent upwardly approximately over the center of said base, said seat consisting of a single piece of bent tubing with fabric therebetween, said seat having a back frame and two opposed cantilever arms integral with said seat and back frame, said cantilever arms bent forwardly from said back frame, said seat swinga-bly supported by said cantilever arms which are pivotally connected to said opposed side arms of said base.

3. In an article of furniture, a base and a swingable seat, said base consisting of a single piece of bent tubing having a rear base portion, opposed side base portions bent forwardly at approximately right angles to said rear por tion forming a ground engaging portion, opposed leg portions, said leg portions bent upwardly and rearwardly from said side base portions, opposed end. portions integral with said leg portions, said end portions bent upwardly vertically from said leg portions approximately at tr e center of said side base portions, said seat consisting of a single piece of bent tubing having a front portion and opposed side portions bent rearwardly at right angles to said front portion on the same horizontal plane, opposed rear portions integral with said side portions, said rear portions bent upwardly from said side portions, and at right angles to said side portions opposed cantilever arms integral with said rear portions and bent forwardly from said rear portions, said seat swingably supported by said cantilever arms pivotally connected to said end portions of said base permitting said seat to swing freely on said base.

4. In an article of furniture, a base and a swingable seat, said base consisting of a single piece of bent tubing having a rear base portion, opposed side base portions bent forwardly at a proximately right angles to said rear portion on the same horizontal plane, forming a ground engaging portion, opposed leg portions integral with said side and rear base portions, said leg portions bent upwardly and rearwardly from said side base portions, opposed end portions integral with said leg portions, said end portions bent upwardly vertically from said leg portions approximately at the center of said side base portions, said seat consisting of a single piece of bent tubing having a front portion and opposed side portions bent rearwardly at right angles to said front portion on the same horizontal plane, opposed rear portions integral with said side portions, said rear portions bent upwardly from said side portions and at right angles thereto, material attached to said front, side and rear portions forming a support for a person, opposed cantilever arms integral with said rear portions and bent forwardly from said rear portions, said seat swingably supported by said cantilever arms pivotally connected to said end portions of said base permitting said seat to swing freely with the center of gravity of the seated person below the support of said seat.

5. In an article of furniture, a base and a swingable seat, said base consisting of bent tubing having a rear base portion, opposed side base portions bent forwardly at approximat ly r ght angles to said rear portion on the norizontal plane forming a ground engaging portion, opposed leg portions integral with said side and rear base portions, said leg portions bent upwardly and rearwardly, opposed end portions integral with said leg portions, said end portions bent upwardly vertically approximately at the center of said side base portions, said seat consisting of bent tubing having a front pcr-- tion. opposed side portions bent at right angles to said front portion on he so horizontal plane, opposed rear portions integral with said side portions, said rear portions bent upwardly from said side portions at an greater than to said side portions, :ear portions extending above said base and bent downwardly upon themselves forming a baclc rest, material attached to said front, side and rear portions forming a support f r a erson, opposed cantilever arms integral with s2 portions and bent forwardly from said per-- tions, said seat swingably supported said cantilever arms which are pivotally co nected to said end portions of said base permit ing said seat to swing freely on said (i. In an article of furniture, a base and swingable seat, said base consisting of a sin le piece of bent material having a rear base p r tion, opposed side base portions bent forwardly at approximately right angles to s tion on the same horizontal plane ground-engaging portion, opposed r integral with said side and rear base pol-t said leg portions bent upivar ly and ly from said side base portions, opposed end portions integral with said leg portions, said en t portions bent upwardly vertically from s id l portions approximately at the cc"- ter side base portions, said seat consisting of a single piece of bent material having a front and opposed side portions bent rearwardl right angles to said front portion on the horizontal plane, opposed rear por with said side portions, said rear poi upwardly from said side portions at an ang greater than 90 to said side portions, said portions extending higher than said base for ing a backrest, material attached to said front, side and rear portions forming a support for a person, opposed cantilever arms substantially parallel to said side portions and joined approximately at the center of said rear portions, said seat swingably supported by said cantilever arms pivotally connected to said end portions of said base, permitting said seat to swing freely of said base.

'7. A chair having an under frame bent from a single piece of tubing, said under frame having two spaced side frames, said under frame comprising means forming a ground engaging portion, said side frames bent rearwardly approximately to the center of the side of said ground engaging portion, a seat and seat back frame having two cantilever arms, said seat back frame and cantilever arms bent from a single piece of tubing and suspended by said cantilever arms, connecting means on said cantilever arms and said side frames permitting said seat to swing freely on said under frame.

8. In an article of furniture, a supporting base and a seat structure, said seat structure bent from a single piece of tubing and swingably suspended by two spaced cantilever arms integral with the tubing of said seat structure, said base having two spaced side frames, said cantilever arms pivotally connected to said supporting base to permit said seat structure to swing freely, said base and said side frames bent from a single piece of tubing.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 1,688,587 Liljedahl Oct. 23, 1928 2,482,827 Black Sept. 27, 1949 V FOREIGN PATENTS Number Country Date 555,850 Germany July 29, 1932 609,492 Germany Feb. 15, 1935