US1980615A - Folding chair - Google Patents

Description

l Nov. 13,'1934. EMERSQN 1,980,615

FOLDING CHAIR Filed March 16, 1933 2 Sheets-Sheet l Nov. 13, 1934. w. MERSON FOLDING CHAI R Filed March 16, 1933 2 Sheets-Sheet 2 Patented Nov. 1 3, 1 934 l 1 UNITED STATES PATENT OFFICE FOLDING CHAIR Lilley W. Emerson, Hooksett, N. H., assignor oflomhalf to Harry A. Freedman, Brooklyn,

Application March 16, 1933, Serial No. 661,149 R S S U 5 claims. (c1. 15s-117') The object of the invention is to provide a of which are reduced in diameter to provide profolding chair for beach or steamer or equivalent truding studs 16 which are adapted for seating in use which may be folded up into such compact the notches or seats 17 formed in the upper edges form as to be then of a thickness no greater than of the rear legs which are interconnected at their 5 the combined widths of the struts constituting lower ends with a tie bar 18. 'F'J its supporting element and of a reduced length; The seat is dened by the side rails 19 which are to provide a folding chair in which a continuous pivotally connected with the tie bar 20 connectweb constitutes both the seat and back and is ing the front legs at intermediate points in their anchored at the line-defining the juncture at the lengths, these side rails 19 having also pivotal seat and back, so that no undue strain may be connections with the cross bar 15 beyond which S5 imposed upon it, so that it may be readily dethey extend slight distances to be connected by a tached from the frame at this point and so that tie bar 21 which is parallel with but spaced from it may be adjusted to increase or diminish the the cross bar a distance sufficient to permit the fullness of the scat 0I 0f the beek; and generally passage of a double thickness of the web 22 conl5 to provide a chair 01 the kind indicated Which stituting the seat and back, one extremity of the F3 is of simple form and susceptible Of Cheap manuweb being connected to the tie bar and the facture. other to the tie bar 14.

With this object in View the invention consists An intermediate portion 0f the web extends in in the construction and combination 0f parts 0f double thickness through the space between the 2O which a preferred embodiment iS illustrated in tie bar 21 and the cross bar 15 and receives in the '75 the accompanying drawings but t0 Which em" loop thus formed the lock bar or stick 23 thc bodiment the invention is not to be restricted. diameter of which is greater than the spacing Continued use in practice may dictate certain bei-,Ween the bars 21 and 15, so'thai; the web is changes 0r alteratOnS and the right iS Claimed t0 locked at this point and a line of juncture between -25 make any such changes or alterations as will fall the seat and back denedgg, within the scope of the annexed ClamS- The front legs at the lower end are connected In the drawings: by the tie rod 24 and arm 25 are provided with E igure 1 1s a perspectlve vlew 0f the mvention pivota1 connections with the side raus 12 of the n 1n its extended DOSl'GlOnback and also pivotal connections with the front Flgllle 2 1S e SeCtlOnal VlfW 0n the Plane lndllegs 10 in common with the pivotal connections 85 cated by the Ime 2 2 Of- F1gbetween the latter and the rear legs.

Figure 3 1S a DOOInDlaD VIEW The pivotal connections of the arms with the Figure 4 1S a flOIlt VleW ShOWmg lh? Chan and side rails of the back are the same distances from lts attendant leg rest in folded positlon. the cross bar 15 as the pivotal connections of the Flgllle 5 1S a VleW Slmar to Flg' 4- arms with the front legs are from the tie bar 20. 93

iinsistingsintassi of arms as by cated by the une 7 7 of Fig 4 the p1vota1 connections are the same as the Figure 8 is a sectional view on the plane indilengths of me Stde raus 19 of, the seat as de' cated by the une 8 8 of Fig' 5 fined by their pivotal connections with the tie bar 20 and the cross bar 15. Thus the arms and Figure 9 is a perspective view of the web and its attendant Supporting barsI the side rails of the seat and portions of the front The chair is supported on the from, and rear legs and portions of the side rails of the back legs 1o and 11, the 1atter being pivotally con define parallelosrarns, whatever the adjustment,

nected to the former at their upper ends. The and that may be any one ofseveral positions VO rear legs have always a pronounced inclination, between a substantial upright position of the back J when the chair is extended, while the front legs or a pronounced rearward inclination of the latter incline slightly from the vertical in the most updepending on which notches or seats in the rear right position of the back and increase their legs the studs 16 are engaged. By arranging the inclination as the back is adjusted rearwardly, linkage to define a parallelogram, the most comq the planes of the front legs and back being parpact position of the elements is secured in the 1 allel in every instance. folding loperation, this arrangement permitting The back comprises the side rails 12 connected the front legs to fold down between the rear legs at their upper ends with a tie bar 14 and at their and in. edge-abutting engagement with the side lower ends with the cross bar 15, the extremities rails of the back, the side rails of the seat falling 1w to an extent substantially the length of the arm rest portion. Because of this construction the chair, when it is folded, is reduced to a minimum length in one direction. It will be readily seen,

' in Figs. 6 to 8, that no members of the chair extend greatly beyond the coextensive portions of the chair and that, therefore, the length of the chair when folded is governed, in the main, by the` sum of two adjacent sides of the parallelogram and is not much greater .than this length. To this end, it will also be noted that the front legs portion 10 project downwardly to an extent substantially the length of the seat portion 19. Like- Wise, the rear leg portion 11 is substantially the same length as the sum of two adjacent sides of the parallelogram. It is this feature that corrtributes greatly to the compactness of the chair when it is folded for shipment, or other purposes.

By reason of the lock bar or stick, the web at the line of juncture between the seat and back may be readily adjusted to increase or diminish the fullness of either.

A detachable leg rest is provided for use with the chair and this comprises a slatted platform 26, the side rails of which at one end are provided with the hooks 27 for engagement with the tie bar 20 when the chair is extended. The leg rest may have its free end rest on the floor to assume a pronounced inclined position, or it may be elevated above the floor level by extending its legs 28 which are foldably connected with it.

In the folded position of the chair, the legs of the leg rest are folded down against the plat-- form and the latter is inserted between the seat .and back with the hooks 26 engaged with the cross bar, as clearly shown in Figure4 of the drawings.

The invention having been described, what is claimed as new and useful is:

1. A collapsible chair comprising, front leg and back rest portions, and arm rest and seat portions, respectively forming opposite sides of a parallelogram pivoted at its corners, and a rear leg portion pivoted at the juncture of the arm rest and front leg portions and adapted to extend diagonally across and detachably connected at an intermediate point to the parallelogram, the back rest portion projecting beyond its pivot with the arm rest portion in` one direction to an extent substantially the length of the arm rest portion, the front leg portion projecting beyond its pivot with the seat portion in the opposite direction to an extent substantially the length of the seat portion, and the rear leg portion extending from its pivot substantially the length of two adjacent sides of the parallelogram, whereby the chair can be compactly folded.

2. A collapsible chair comprising, front-leg and back rest portions, and arm rest and seat portions, respectively forming opposite sides of a parallelogram pivoted at its corners, a rear leg portion pivoted at the juncture of the arm rest and front leg portions and adapted to extend diagonally across the parallelogram, and means at the juncture of the back rest portion and seat portion to engage the rear leg portion adjustably at various points along its length for Vholding the chair to desired seating position, the back rest portion projecting beyond its pivot with the arm rest portion in one direction to an extent substantially the length of the arm rest portion, the front leg portion projecting beyond its pivot with the seat portion in the opposite direction to an extent substantially the length of the seat portion, and the rear leg portion extending from its pivot substantially the length of two adjacent sides of the parallelogram, whereby the chair can be compactly folded.

3. A collapsible chair comprising front leg and back rest portions, and arm rest and seat portions, respectively forming opposite sides of a parallelogrampivuted at its corners, and a diagonally extending rear leg connected at one end to one corner of the parallelogram and intermediate its ends detachably connected to the other corner of the parallelogram, the back rest portion projecting beyond its pivot with the arm rest portion in one direction to an extent substantially the length of the arm rest portion, the front leg portion projecting beyond its pivot with the seat portion in the opposite direction to an extent substantially the length of the seat portion, and the rear leg portion extending from its pivot substantially the length of two adjacent sides of the parallelogram, whereby the chair can be compactly folded.

4. A collapsible chair comprising front leg' and back rest portions, and arm rest and seat portions, respectively forming opposite sides of a parallelogram pivoted at its corners, and a rear leg constituting a diagonal of the parallelogram to which it is connected at one end and at an intermediate point in its length, one of said conncctions being pivotal and the other releasable, the back rest portion projecting beyond its pivot with the arm rest portion in one direction to an extent substantially the length of the arm rest portion, the front leg portion projecting beyond its pivot with the seat portion in the opposite direction to an extent substantially the length of j,

the seat portion, and the rear leg portion extending from its pivot substantially the length of two adjacent sides of the parallelogram, whereby the chair can be compactly folded.

5. A collapsible chair comprising front leg and front leg portion projecting beyond its pivot with the seat portion in the opposite direction to an extent substantially the length of the seat portion, and the rear leg portion extending from its pivot substantially the length of two adjacent sides of the parallelogram, whereby the chair can be compactly folded.

LILLEY W. EMERSON.

Images