US1785317A - Chair - Google Patents

Description

Dec. 16, 1930. v R. L4.. RLOTZ v 1,785,317

Filed sept. ze', 192s` 2 sheets-sheet 1 S14/vento@ Dec. 16, 1930. R. L. KLoTz 1,785,317

` CHAIR Filed Sept. 26, 1928 Z-Sheets-Sheet 2 RLKLU iz i Curci neu Aim Patented Dec. 116,5' 1930 UNITED 'STATES rATENrfoFi-ici-z RUssELnn nora, or'LIT'rIE Farms, NEW'JERSEY cnam AApplication med vSeptembezl 26, 1928. Serial No. 308,351.

-invention'li'as for-:zits object the pro! from place to lace. Other objects will ap-- ear incidental yin the course of the followcertain novel features which will be articu- `larly pointed out in the appended c aims. In the accompanying drawings:

Figure 1 is a side elevation of a chair con- 20 structed in accordance with the present inf vention; Fig. 2 is aside elevation'showing the chair collapsed or`folded';

Fig. 3 is a front elevation,` partly broken away, and t Fig. 4 is a detail perspective view of one A'armof the chair with parts immediately adf'jacent the same. In carrying out the invention, there are` rovided side arms each consisting of two ars 1 and 2 firmly secured together and each having a pendent portion 3 at its frontend, the pendent portion of the inner bar 1 being wider longitudinall of the arm than the pendent portion of 'the bar 2 wliereby-'arecess will be formed in which the upper end ofthe Nfront leg 4 may be pivoted. At the rear end of the side arm, the bars land 2 are also formed'with depending portions 5 and a cross bar-6 is secured atits endsto the rear edges of said depending ortions and extends across the back ofthe c air so as to impart rigidit to the supporting frame and also' limit t e rearward movement of the b ack, as will presently appear. To theouter side of thebar 2 at the rear end thereof is secured a spacer block 7 and to the outer side vof said spacer at the rear end of the same is secured a stop block 8, the rear leg 9 being pivoted at its upper end to the spacer 7 immediately in f be adjusted to the needs of individual users; 00

front of the stop 8 so that rearward move' ment oftheleg will vbe prevented, andit may -ben noted that the depending front portion 3 of the bar 2 serves as a stop to prevent for.-

ward movement of the-.front le The pivots 10 and 11 for the front and rear egs are c 1inddrical studs or tenons formed at the en s of crossrodsone of'which is indicated at 12, which extends entirely across the frame and have the shoulders formed by producing the tenons arranged to abut the inner sides Y of frame members and thereby prevent rela- 4 tive inward movement ofsaid members so that the desired rigidity willA be attained. 15 mg description, and theinvention resides in The lower ends of the front legs are connected by a cross bar 12 secured to the'same and the rear legs are connected in a similar manner by a cross bar 13, as will be under stood. A brace 14 is pivoted at its front end v to the outerside of the front leg adjacent the lower end of the same and at; its rear end is ,engaged over a stud 15 on the inner side of the rear leg, as will be understood upon reference to Fig.' 1, whereby relative spreadving of-the front and'rear legs will be pre' 75 vented and the supportingstructureconsisting of the side arms and the legs will be held against collapse while the chair is in use. Throughvthe4 outer ends-of the trunnions or tenons 10 and 11 are inserted keys 16 which 300 are tapered or wedge-shaped so that they may bind against the legs within the slots provided thereforl and thereby frictionally resist turning movement of the legs and the other parts while they will also maintain the parts g5.

which extend upwardly and rearwardly, -therefrom and are provided in their upper f end portions with longitudinal series of openings 21 which are adapted-to be seleetive ly engaged over-studs 22 on the outer sides of the hangers 17 whereby the foot rest may The Aback of the chair consists ofy two .long v the bars willbe avoided.A To the lower extremities of the side bars 23 are pivoted braces 25, which have their forward ends pivoted to a round 26 secured in and .extending between the hangers 17 of the foot rest,

,the round 27 constituting the pivotal connecf tion between the lower lends of the side bars 23 and the braces'25 which are so disposed that the several pivotal points 10, 11, 26 and 27 define the corners of`a parallelogram, this arrangement permitting the chair to automatically 'assume the position desired -by the user without liability-of the chair to collapse.

, The seat or support for the user consists of a strip ofvfabric 28, preferably 'stout canvas,

which is secured at its upper end to the round 24 and passes downwardly therefrom and then forwardly to pass over the upper front bar or rod 12 and then downwardly to be secured to the round 26, as will be understood upon reference to Fig. 1.

A practically rests upon the hangers.

When the chair is in use, the sitter by merely leaning back to such angle as may be found most comfortable will automatically cause the hanger 17 and the side bars 23 of the back to swing about their respectivebp'ivot points 10 and 11 so as to slipport the sitter in the desired-position, the hangers and the side bars being always in parallelism. Excessive backward movement of the side bars I23 is prevented by reason` of their impact upon the stop bar 6 and the liability of the chair to'tip over backwardlyis thereby reduced toa nul- If it be desired to store the chair, the stop bar 6 is removed. Thebraces 20 are then disengaged from the studs 22 and moved vinto positlon substantially parallel with the hangers 17 or along the front edges of said hangers, this movement causing the foot rest to swing into position against the hangers, as shownin Fig. 2. The foot rest andthe bracesm'ay then be tied to the hangers by any convenient means. 'I he back of the de- Vice is then swung about its pivot 11 so that the upper end of the back swings forwardly and the lower end swings rearwardly, thefoot rest and hangers following the vmove-A ment which may be continued until the back comes into contact with the front bar 12 and braces 14 may then be released from the studs 415 and swung up alongside the respective front legs and the front legs then swung upwardly and rearwardly to positionsI alongside of the folded back, the folding operation v Ybeing completed by swinging the rear legs forwardlyand upwardly, as will be under-` stood upon reference to Fig. 2. cord or The l other fastenin means may then be tied around the fol ed structure so that the parts will be maintained in the collapsed condition.

From the foregoing description, taken in connection with the accompanying drawings,

Vitwill be seen that I have provided an eX- ceedingly simple,strong and durable vchair which may be used without fear of collapse and which will permit theuser to assume such position as may be found most desirable.

Having thus described the invention, I Y

1. A chair comprising side arms each having pendent portions at its front and rear ends, a. bar rigidly connecting the rear ends of the side arms, legs pivoted to the depending portions of the side arms, stops on said depending portions lholding the front legs against forward movement and the rear legs agalnst rearward movement, connections `between'the lower ends of the legs, and a seat structure pivotally mounted betweenthe side arms.

' 2. A chair comprising side arms each have ing depending portions at its front and rear ends, said depending portions having recesses'at the outer sides of the arms, front and rear legspivote'd at their upper ends in the respective recesses, the front 'walls ofthe front recesses preventing forward movement of the front legs and the rearwalls of the rear recesses preventing rear'movement of the rear legs, connections between the lower v lends of the legs, and a seat structure pivot ally supported by and between the side arms..

In testimony whereof I aiiix my signature.

RUSSELL L. KLOTZ. [L. s]

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