US1829434A - Chair - Google Patents

Description

CHAIR Filed March 21, 1930 3 Sheets-Sheet 2 @Hoen m o.

Oct. 27, 1931. .1. D BAIR 1,829,434

CHAIR Filed March 2l, 1930 3 Sheets-Sheet 3 l H x www.

'Patented Oct. 27, 1931 UNITED STATES PATENT OFFICE CHAIR Application i'iled March 21, 1930. Serial No. 437,822.

This invention relates to chairs and more especially to reclining chairs.

Itis an object of the invention to provide a chair having a yieldingly restrained movable back with which is associated a movably supported seat so mounted that the weight oit' the occupant of the chair constitutes a supplemental means for resisting the backward movement of the chair-back when the occupant presses thereagains't.

Another object is to provide a chair the seat and back portions of which can be removed readily from the frame for convenience in shipping and storing and also to i'acilitate cleaning, upholstering, or repairing the parts.

A still further object is to provide a chair which is of simple construction and will not readily get out of order.

With the foregoing and other objects in View which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed may be made within the scope of what is claimed without departing from the spirit of the invention.

In the accompanying drawings the preferred form of the invention has been shown.

In said drawings Figure 1 is a central vertical section through the chair.

Figure 2 is a bottom plan view, parts being broken away and the Jfront legs removed.

Figure 3 is a section on line 3 3 Figure 1.

Figure 4 is a section through a portion of the chair showing the relative positions of the parts when the back is pressed backwardly to an inclined position.

Figure 5 is a view partly in section and partly in elevation showing portions of the near side of the back and seat trames at their co-operating ends.

Figure 6 is a view similar to Figure 4 showing the relative positions of the back and the chair frames after the seat frame has been removed and the back fra-me has been swung to released position.

Figure 7 is a section on line 7 7 Figure 1.

Figure 8 is a perspective view of the cooperating rods of the back restraining mechanism.

Figure 9 is a perspective view of one of the bearing blocks for supporting the back frame.

Figure 10 is a perspective view of a bracket for supporting the cross-bar.

Figure 1l is a detail view of a modified 4 form of bearing member which can be used on the chair.

Referring to the figures by characters of reference 1 designates a chair frame supported at its front corners by legs 2 and, at its rear corners by legs 3. If desired, and shown in the drawings, the legs 3 can be made integral with standards 4 supporting the back ends of the chair arms 5. The front portions of these arms can be supported by standards 6 secured to the sides oit' the frame. t is to be understood, however, that any desired construction of the frame and arms can be used.

Secured to the inner sides of the standards 4 close to but above the rear portion of frame 1 are bearing blocks 7 each of which has a slot or recess 8 extending downwardly thereinto. To the inner sides of the sides of frame 1 are fastened brackets 9, each of which has an oifset slotted tongue 10.

Extending transversely of frame 1 near its front end is a rod 11 the ends of which are suitably seated in the sides of the frame as shown at 12 or are otherwise supported. Parallel with this rod and adjacent to the center of the frame 1 is a cross-bar 13 having pins 14 projecting from its ends and removably seated in the slotted tongues 10 of brackets 9. This rod has an opening 15 in which can be seated a guide sleeve 16.

The back frame of the chair has been indicated at 17 and is provided above its lower end with a transverse rod 18 the ends of which project laterally fro-m the back frame and are removablyT seated in the blocks 7. This arrangement is shown clearly in Figures 3 and 7. rlhe lower ends of the sides of frame l? are connected by a rod 19 and theseends are adapted to bear backwardly against the back of the chair frame 1 when the backframe 17 is in its normal or fully raised position. This has been illustrated clearly in Figure 1."v AObviously the back frame can be reinforced by cross-strips 20 located wherever desired.

n For the purpose of maintaining the back frame17 knormally yin-the position illustrated in Figure 1, a rod 21 is slidably mounted in the sleeve 15. This rod has a forked head 22 which straddles the' rod 19. A coiled spring 23 is mounted lon the rod and bears at one end against head 22'while its other end bears against the bar 13er a flange 24 integral with sleeve 15. Thus it will be seen that spring 23 will beheld normally funder compression yso` that the lower endof frame. y17

is normally pressed against the .back end of:

framel. When frame 17 is pressed backvWardly at itsupper end 4the rod19 will push P l Vto hold the-ends ofthe-rod against accidental against 'head 22 so as to further kcompress spring V23 andy if there is nothing to prevent it, the back frame 17 can beswung rearwardly and d-ownwardlyito move rod -19 past itsdead center, as shown in Figure 6 so that fra-nie '17, rod21, bar 13,.and spring 23 can be removed as will be obvious.

` The seat frame has beenqindicated ats25and is of such size as to lit loosely between the sides kof frame 1 yand between the front of said'frame and the lower portion of frame 17 `A transverse groove 26 is provided inthe bottom-ofthe frame 25 near its front-,end and is adapted to receiverod 1=1 so that the front portion .fof seat frame A25 will thus be sup- ,k ported. Tongues 27 are extended rearwardly from theseat'frame 25 and to each of these tongues :issecured a bearing plate 28 the free end portion of which'is offset to form a small yoke 29 adapted normally to straddle rod 19 asvshownyfor example, in Figures 1 and l2. Each platecan befurtheroffset transversely to iprovidefagroove BOfadapted-to receive the rod 19 whenfthe back frame `17 lis swung rearwardly tothe limit of its movement as shown in Figures 4 and 5 at which time the lower endportions 4of the sides of frame-17 press against the l:rear end of frame 25. Wear buttons 31-canybe mounted on the end-of frame 25` to j receive thrusts from frame 17.

As-beforestated,spring 23 holds the frame 17 normally in the lposition shown in Figure 1. Whenthechairis occupied the weight'of the occupant Afurther actsto restrain frame 17 IVhen'the occupant of the chair presses backwardly against-the back of the chair the rod 19 -will swing forwardly and upwardly. This will causeV the spring 23-to be placed under increased compression and atthe same time rod 19 will move out of the yoke 29 and movement of frame 17 will be limited by its contact with frame 25 or the stops 31 therelwardly to the position shown in Figure 6 and theparts separated as heretofore explained. Instead of using the bearing blocks 7 the ends of the .rod 18 can Lbe seated removably in angular slots 32 formed in-theiofset inter.-`

mediateportions 33 lof plates 34 which are attachedto the standards 4. Levers y35 are ivotally connectedto these plates andserve withdrawal .from the inner ends of the slots in which the rod is seated. y

What'isclaimed is: l 'Y p f The combination with a chair frame .and a cross-bar removably and rotatively mounted therein, of aback-frame removably andpivotally supported by the chair frameacrossrod carried V.by the ,back frame below the pivot thereof,y a slidable removable `connection between the cross-rod and the bar, and yielding means carried by said connection for exerting a thrustagainst the rod -.to hold theiback frame normally'in a ,predetermined position,

said back frame being movable to shift lthe rod past .adead center and release the back frame bar, :and slidable connection for. separation andremoval fromt-hechair frame.

In testimonyfthat I claim the foregoing as myown,'I have hereto affixed my signature. Y v JACOB D. l13A-IR.

thrust upwardly'against the plates 28. IJVhen the occupant leaves the lchair the spring 23 will return frame 17 to its normal position and the frame 25 will gravitate backto its normalfpos'ition. l Obviously the backward

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