US1800107A - Folding chair - Google Patents

Description

J. J. SCHMITT 1,800,107

FOYDTNG CHAIR April 7, 1931.

Filed Feb. PE 1929 W 'i [rf-2.1m;

Patented Apr. 7, 1931 UNITED STATES- JOSEPH J'. SCHMITT, 0F ALGOIA, WISCONSIN romaine cnam' 'Anuman mea mmm as, ma. seran n. uam.

This invention relates to folding chairs 'and has for its object to provide, in a manner as hereinafter set forth, an article of such class soconstructed and arranged whereb the elements thereof willV be nested tol t er in a compact form when the chair is olded.

' A further object of the invention is to provide, in a manner, as hereinafter set forth, a

chair of the class referred to includin a pivoted seat and pivoted rear legs capab e when folded to be positioned res ctively, within the back and between the ont legs of the chair when the latter is folded.

A further obj ect-of the invention is to provide, in a manner as hereinafter set forth, a

foldable chair including a seat carried by a pair of sliding pivots acting as means to couple the seat with the front le of the chair and further sliding in such egs when the ,20 chair is extended and contracte A further object of the invention is to rovide, in a manner as hereinafter set fort, a foldin chair includin a pair of front anda pair o rear legs pivot ly connected together, and a brace for the rear legs constituting a spacing means between the front and rear legs and supporting means or bearings for the pivots between said legs.

vide, in a Amanner as hereinafter set forth, a new and im roved bracing element for the rear legs of e chair.

A further object of the invention is to rovide', in a manner as hereinafter set fort a chair of the class referred `to having a pair of slidable pivots between the seat and front legs and a means for bracing and connecting the front legs to ther with such means act- -`ing as a support or theseat when the chairis 40v extended. Y

Afurther object of the invention is to rovide, in a manner as hereinafter set fort a folding chair including a back member having end extensions for coupling tothe side elements of the chair and with each of said elements forming a side rail of the chair back and a frontrail of the chair.

Further objects of the invention are to i rovide, in a manner as hereinafter set fort ,fa foldable chair which is simple in its construe'- c when folded.

A further object of the invention isto protion and arrangement, strong, durable, compact, readily extended and contracted, capable of being folded in an unusually compact manner, readily assembled and comparatively inexpensive to manufacture.

With the foregoing and other objects in view the invention consists of the'novel construction, combination and arran ent of parts as hereinafter more speci cally described, and illustratedin the accompanying drawings wherein is shown an embodiment ofthe invention, but it is to be understood that changes, variations and modifications vcan be resorted to which fall within the scope of the claims hereunto appended.

In the drawings wherein like reference characters denote corresponding parts throughout the several views:

Figure 1 is a vertical sectional view of a folding chair in accordance with this inven- 0 tion and with the chair extended, and further 7 illustrating in dotted lines the chair partly folded.-

Figure 2' is a rear elevation of the chair Figuresisfm m"rc1" a en v1ew, a 1n section of the ehaiig-nwhenrgxtended). y Figure 4 is a section on line 4 4 Figure 3. Figure 5 is a section on line 5-5 Figure 3. Figure 6 is a detail on line 6--6 Figure 2. The chair includes a pair of oppositely dis posed channel sha d elements of appropri ate length and which are referred to generally at 8 and 9. Each of said elements constitutes a front leg 4 and aside rail of the back of the chair. That portion of'each of said elements which constitutes a front leg for the chair is indicated at 10 and the portion which provides a side rail of the back of the chair is indicated at 11. The channel formed by each element 8, 9 is indicated at 1 2 and is co-'extensive with such element.

The chair further includes apair of rear 'legs 13, M 'and each of which. is formed on its inner face with a channel 15 extendin 95 from a point .removed from the up r end o the le to thelowerend thereof. e upper end c each rear leg is fiat as indicated at 17.

v The lower end of each of the legs of the chair is provided with'a foot piece 18 of a 100 length slight-ly greater than the width of the leg and which closes the lower ends of the channels formed in the legs.

The legs 13, 14 are arranged between the legs 10. Each rear leg is mounted on a pivot 19 positioned at a point above but in proximity to the transverse median of the rear legs. The pivots 19 extend through the front legs 10 and rear legs 13, 14 and their ends are upset. Welded or otherwise secured to the front of the rear legsis a brace member 2O having angularly disposed ends 21 which are interposed between the rear legs and front legs and through which extend the pivots 19. The ends 21 constitute spacing means between the rear and front legs` The bracing member 20 is rectangular incross section. A channel shaped brace member 22 having right angularly disposed end flanges 23 is positioned between the rear legs 13, 14 near the lower ends thereof.

Holdfast devices 24 extend through the flanges 23 for fixedly securing the brace member 22 to the rear legs.` The lower ends of the front legs are connected together by a brace member 25 having angle shapedends 26 which abut against the legs l0 andare Vfixedly secured therewith by holdfast devices 27 extending through the ends 26. 'The elements 8, 9 at the point of` mergence of the front legs 10 with the side rails 11 have interposed therebetween a combined seat support and brace member referred to generally at 28 and which is formed of an intermediate part 29 and a pair of end parts 30. l The end parts are oppositely disposedand curve downwardly with respect tothe intermediate part v29. Each end part 30 terminates in a right angularly disposed flange 31 for positioning against and extending across the channel formed in the member 8 or 9. Positioned in the channels of the elements 8, 9 and opposing the flanges 31 are liller blocks 32 provided with openings 33 which register with openings 34, 35 formed in the flanges 31 and elements 8, 9.

Holdfast devices 36 extend. through said registering openings for fixedly securing the member 28 between and to the elements 8, 9. The flanges 31 are forwardly directed with respect to the intermediate portion 29 and the latter is positioned rearwardly with respect to the elements 8, 9. See Figure 3.v The intermediate portionl 29 of the memberI 28 provides a support for the seat which will be presently referred to.

The chair further includes a seat comprising aframe 37 having its body of angleshaped cross section to provide a vertical and a horizontal portion 38, 39 respectively. The horizontal portion extends inwardly from the lowerend of the vertical portion. The frame is formed'of a rear, a front and a pair of sides integral with each other.

Secured upon the horizontal'portion 39 is a bottom member 40 of an area to be spaced from the sides of the frame 37 a sufficient distance to provide a small clearance for a purpose to be presently referred to. The clearance is indicated at 41. Mounted on the bottom member 40 is a cushion 42 having its covering 43 extended to enclose the member 40 at the edges of the latter.

The sides of the frame 37 at a point between the vertical median and rear end of each side is formed' with an opening 44 for the passage of a pivot 45, the latter having its inner end upset to provide a head 46 which is positioned in the clearance 41 and opposes the inner face of a side of the frame 37. The outer end of the pivot 45 is fixed to a block 47 which is slidably mounted in the channel 12.

VThe blocks 47 provide for slidably connecting the seat to the side rails of the back of the chair and the headed pivots 45 provide means to enable the seat pivoting relative t0- the blocks 47 when tbe chair is extended or contracted. The head 46'of the pivot 45 provides for coupling the'scat to the blocks 47.

member 48 is of arcuate form and projects rearwardly with respect to the upperends of the rails 11. The member 48 is provided at its top and bottom edges with rearwardly extending flanges or beads 49. The member 48 at each end is formed with a pair of rearwardly disposed extensions 50 each bent upon itself. The extensions 50 are positioned in the channels l2 and fixedly secured to the rails 11 by the holdfast devices 51. The forward face of the member 48 is a substantial continuation of thel rear face of the front flange 52of the elements 8, 9. The member 48 projects from said flanges 52 and the extensions 50 snugly engage the walls ofthe channels of the rails 1l.

The elements of the chair, other than the bottom member 40, cushion 42 and covering 43 are constructed of metallic material of the desired weight.

The .flat upper endsf17A of rear legs 13, 14 oppose the outer faces of the sides o'f the frame 37 and are pivotally connected thereto, as at 52, in proximity to the front of frame 38.

The blocks 47 project a substantial distance inwardly from the elements 8, 9, see Figures 4 and 5, and act as spacing means between the rear portion of the seat and elements 8, 9. This prevents any possibility of the seat at its rear being shifted toward either-one of the elements 8, 9.

It is thought the many advantages of a folding chair, in accordance with this invention can be readil understood, and although the preferred em odiment of the invention is as illustrated and described, yet it is to be understood that changes in the details of construction can be had which fall within the scope of the invention as claimed.

What I claim is:

l. A foldingchair comprising front legs, rear'legs, channel-shaped side rails forming upper continuations of the front legs, piv otal connections between the front and rear legs intermediate their ends, a back member secured to said side rails, a seat pivoted near its front to the top of the rear legs, blocks slidably mounted in the channels of and projecting inwardly from said rails, and pivotal connections between said blocks and said seat in proximity to the rear of the latter, said pivotal connections fixed to said blocks, extending into said seat and provided with heads for coupling the seat to the blocks.

2. In a folding chair, front and rear legs, pivot means frsaid legs intermediate the ends thereof, and a brace connecting the rear legs together and provided with angularly disposed end portions, said end portions pro-4 viding means for spacing the rear legs from the front legs and bearings for the pivot means between the front andrear legs.

3. A folding chair comprising a pair of front legs, a pair of rear legs arranged between said front legs and an independent pivot connection between each front and corresponding rear leg, a brace connecting the rear legs and provided with angularly disposed portions providing spacing means between the front andirear legs, said means having said independent pivot connections extending therethrough.

4. In a folding chair the combination of an upstanding seat back having channel-shaped side rails, a seat for folding between said rails and including a seat member and a frame surrounding said member, said frame including a pair ofsides, a front and a rear,` said seat member spaced from said sides toq provide clearances, said sides in proximity to the rear ends thereof provided with openings, blocks slidably mounted in the channels of said rails, and headed pivots extending ing said seat and of a length greater than the width of the chair seat, said combined support and brace further including a pair of down-curved end portions, each terminating in a forwardly directed flange for positioning against and for securing to the inner sides wof said front legs, and said intermediate portion spacing said blocks from the point of connection between the combined seat support and brace and said front legs.

6. In a folding chair, the combination with a pair of front and a pair of rear legs, said front legs extending above the rear legs, means for pivotally connecting the front legs tothe rear legs below the upper ends of the latter, said front legs being of channel shaped cross section, a chair seat pivotally connected to the top of the rear legs and slidabljy1 con nected to the front legs within the channels of the latter above the pivotal connections between said legs, a combined support for the seat and brace for the front legs including an intermediate portion for supporting the seat and a pair of down curved end por tions each terminating in a forwardly directed flange secured against the inner side of a front leg, and filler bloclcs positioned in the channels of the front legs and secured to said seat.

In testimony whereof, I affix my signature hereto. v

JOSEPH J. SCHMITT.

through said openings, fixed at their outer ends to said blocks and having the heads posi- `tioned in said clearances and opposing the inner faces of said sides whereby the seat'is coupled with the blocks.

5. In a folding chair, a seat, a pair of front legs, side rails forming continuations of said legs and of channelled contour, rear legs, pivot connections between therear legs and said seat, blocks slidabl7 mounted in the channels of said rails, pivotal connections between said seat and said blocks, a combined seat support and bracefor saidcfront legs and including yan intermediate portion for support-

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