US1988811A

US1988811A - Folding chair

Info

Publication number: US1988811A
Application number: US658984A
Authority: US
Inventors: Salomon Irving
Original assignee: Individual
Current assignee: Individual
Priority date: 1933-02-28
Filing date: 1933-02-28
Publication date: 1935-01-22
Anticipated expiration: 1952-01-22

Description

Jan. 22, 1935. l. SALOMON FOLDING CHAIR Filed Feb. 223, 1955 Gttorneg Patented Jan. 22, 1935 UNITED STATES @P j* i ,1,988,811 y o FoLDiNG CHsjIR YIrving Salomon, Millflg'fill City, 11.1.11- vApplicant@February es, `1933, -ser'iaiNa s535584 1 Claim.

i invention relates to animprovement in steeljfolding chairs, and Vmore in particular to a folding chair provided with novel supportsfor thelegs, andvwith novel rlocking means to retain said supports and legs imposition.

The object of this invention is to providev a lcomfortable rfolding chair of a nstrong durable nature and one whichwwhen-foldedto collapsed positionjwill consumebut a minimum of space and which will be capable of being easily reopened.

Another object is to provide a folding chair having braces for strengthening its legs, and locking means to positively retain the braces in their leg-supporting positions.

Still a further object resides in the provision of a novel means for locking the leg braces in position, and the provision of easily accessible and operable means for releasing the same.

Other objects and advantages of my invention will be hereinafter described and become apparent upon consideration of the accompanying drawing wherein:

Fig. 1 is a bottom perspective view showing the chair in open position with the legs locked in place;

Fig. 2 is a perspective view showing the chair in a folded position;

Fig. 3 is a cross sectional view of the chair in open position running from front to rear;

Fig. 4 is a. cross sectional view of a portion of the locking means taken on line 4-4 of Fig. 2; and,

Fig. 5 is a crosssectional view of the same taken on line 5-5 of Fig. 4.

In the drawing wherein like reference numerals throughout the specification designate like parts, a folding chair is shown having rear legs l0 and 10'. These legs are braced at the bottom by a cross piece 11 and at the top by a back 12. The chair is preferably made of metal, and the joints thereof are preferably welded together, although they may be joined in any known manner, as by means of bolts. A seat portion 13 has hingedly secured thereto by the hinge members 14 and 14 the front legs 15 and 15', whichare braced by the element 16. Fastened to the rear corners of the seat 13 are members 17 and 17 which are provided with an upstanding ear 18 as shown in Figure 3, which portion is pivotally connected to the rear legs by the pin 19. Securely fastened to the under side of the seat in parallel relation to each other, and adjacent the edges of the seat, are two L-shaped members 20 and 20'. These members are of metal as is the rest of the .ohain and laref secured to the seat lby sonie suitable means such ras welding, or by kfr ij/le'ts, which .means is 'preferably Aused throughout tle entire chair structurer to assure rigidityaridfsta.- bility. kThe L-shaped members 20 and. 2'0" are 5 each vprovided.vvith an elongated slot fsuch as .Shdwnlazlandzlw i l, f, v L

Eivotally connected to .therear'ehairlegsllas ai .12.-2 @eine @www members-zaandam, which 'have a 'pivotal 'engagement with'tlri'e end 10 of rod 24 as at 25. This rod is supported at either end for sliding movement in the slots 21 and 21'. The front legs 15 and 15 are also provided with

braces

26 and 26 pivotally connected to the legs at points 27 and 2'7'. These 15 braces likewise have a pivotal engagement with the rod 24 at either end as at point 25.

Arm members

28 and 28 are pivotally connected as at 29 to the L-shaped elements 20 and 20'. The

arms

28 and 28 are tapered at one end and are provided at that end with

notches

30 and 30 for engagement with the cross rod 24. The opposite end of the

arms

28 and 28 are bent as at 31', and the extremities thereof are secured to a cross element 32 by pins 33 25 and 33.

Midway the length of the cross piece 32 a coil spring 34 is provided, the lower end of which is .held in position relative to the cross piece 32 by the stub 35 secured to the piece 32. The upper end of the spring is retained in position by virtue of its engagement with the punched out portion 36 of the chair seat 13.

The utility and operation of the chair should readily be appreciated in View of the above description. In Figure 1 the chair is shown in an open and operable position with the legs opened and braced to support the seat. When in this position the braces `23-23' and 26-26 will substantially brace the rear and front legs respectively due to the fact that these braces are connected to the chair legs at one end thereof, and at the other end are pivotally secured to the rod 24, which Arod in the position as shown in Figure l is securely held against movement by virtue of its locking engagement with the notches 30 and 30' of the

arms

28 and 28. The spring 34 forces downwardly against the cross piece 32 which is connected to the arms 28 and 28', these arms being pivoted at points 29 and 29 therefore exert an upward motion to the tapered ends of these arms, and thus prevent the escape of the cross piece 24 from the

notches

30 and 30. It is obvious that as long as the cross piece 24 is retained in the position shown in Figure 1, that 55 the various braces connected with the front and rear legs will be held securely in position, and so present an extremely stable chair structure.

If it is desired that the chair assume a collapsed position suchl as that shown in Figure 2 it is but necessary to reach under the front portion of the chair seat and depress the cross element 32 against the action of the spring 32. Such action causes the

arms

28 and 28 pivoted at 29 and 29' to move downwardly allowing the cross rod 24 to slip out of the

notches

30 and 30 and to slide in the guides 21 and 21' towards the rear of the chair seat. The chair is then folded by pulling upwardly upon the front of the seat, the same being pivoted at its rear corners as shown at point 19 to the rear legs, and the seat will assume a position as that shown in Figure 2 wherein the seatportion'b'ec'omes parallel to the top portion of the rear legs,` and the front legs assume a position parallel to the under side of the seat, the chair is then collapsed in an extremely `compact parcel.

When Ait is desired to again set the chair up for use,y it is only necessary to push downwardly upon the seat portion 13 in order to open the seat and the front legs. Such motion will cause the cross rod 24 to move forwardly towards the front of the seatin the guides 21 and 21' from nthe position shown iny AFigure 2 to the lock'- ing position shown in Figure 1 which it will auto matically assume.

It is to be understood that I do not intend to limit myself to the exact construction herein shown and described, but that the foregoing presentation of my invention is merely the preferred embodiment of the same.

I claim:

A folding chair comprising front and rear legs, a seat pivotally fastenedrto said legs, a pair of slotted angle irons fastened to the under side of said seat and in proximity to the side edges thereof, said slots being aligned in a horizontal plane, a cross rod extending transversely beneath the seat and supported adjacent its ends for sliding movement in said slots and extending therethrough, braces pivotally connected at one end to a leg and at the opposite end thereof to an end of said cross rod at a point where it extends through said slots and exterior of said angle irons, and locking means for said legs and braces comprising notched latches pivoted to the inner ksides of said angle irons and the notches thereof engageable with the under side of said rod, a handle bar'connecting thee'nds of said latches to operate the same, and a spring fastened to said seat and handle to maintain the latches in engagement with said rod.l

' 'y IRVING SALOMON.