US1602139A - Headrest supporting and adjusting apparatus - Google Patents

Description

/IEZ M7322 I.. A. WIEDERSTEIN Filed sept. 19, 1924 HEADREST SUPPORTING AND ADJUSTING APPARATUS Il I: I

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Patented @et 5, 1926. l

LLOYD A. WIEDERSTEIN, OF CINCINNATI, OHIO.

HEADREST SUPPORTING AND ADJUSTING APPARATUS.

Application filed September 19, 1924:. Serial No. 738,676.

My invention relates to improvements in chair back and head rest supporting and adjusting apparatus. One of its objects is to provide an improved head-restsupporting and adjusting apparatus applied to a chair back. Another object is to provide for applying a head-rest apparatus to a chair back, having an enameled metal frame in which is mounted an upholstered chair back center. Another object is to provide a combined chair back and head-rest supporting and adjusting apparatus. Another object is to provide in connection with a chair back an improved headrest supporting and adjusting apparatus. Another object is to provide in connection with a chair back an improved headrest supporting and adjusting apparatus adapted to be constructed chiefly from stamped metal members. My invention also comprises certain details of form and combination and arrangement of components7 all of which will be fully set forth in the description of the accompanying dra-wings, in

which:

Fig. 1 is a front elevation of a chair back and head-rest apparatus embodying my invention.

Fig. 2 is a rear elevation of the same partly in section.

Fig. 8 is a perspective view of one of the head-rest supporting members detached.

Fig. A is a perspective view of another head-rest supportingmember detached.

Fig. 5 is a perspective view of a releasing push button detached.

Fig. 6 is a perspective view of a coiled spring employed to oppose the push button. l Fig. 7 is a detail of a' portion of the chair back frame. 5

which 15 represents an annular metal chair' back frame of angular crossl section, which is designed to be enamel finished. An upholstering frame 16 preferably of wood is first provided at its front face with an upholstering pad 17 faced with leather or simi-` lar upholstering material. The rear face of the frame 16 is. also provided with an irregular shaped recess 18 to receive the shank 19 of a head-rest 20, and to receive the headrestsnpporting and adjusting members to be carried by the chair back, before the upholstering frame 16 is introduced into the chair back frame 15 and secured thereto.

The head-rest supporting and adjusting members comprise a plate 22 provided at opposite ends with inwardly directed projections 24C and 26, having perforations 27 and 28 therein to serve as vertical. guides for the shank 19 of a head-rest. I' preferably provide a shank having polygonal faces, and corresponding polygonal faced recesses to thereby prevent the shank from moving rotatably within the recesses 27 and 28. The plate is secured over the rear face of the wider portion of the recess 18 and is rigidly secured` in place by means of screws passed through perforations in the ears 29 at the four corners of the plate 22 and into the frame 16. The plate 22 is also provided with a tongue 30 projecting` partly into the recess 18 and to which a latch or locking mem- Y ber 82 is pivotally attached substantially midway thereof.

The latch member 32 is provided with a polygonal recess 84 through which the shank 19 of the head rest passes7 and in which said shank has a relatively close sliding fit when the latch member lies in a substantially horizontal plane. c Vhen the latch member 32 is canted or tilted into a substantially inclined plane the latchmember 32 acts to lock the shank 19 against movementrendwise relative to the chair back. Y

At the opposite end` of the latch member v32 from the recess 3A is a pin or stud 36 which enters the upper end of a coiled spring 37, which is seated in a cylindrical portion 38 of the recess 18, to thereby normally tilt the latch member 82 upwardly into an inclined position within the recess 18. A push button 40 is seated above the latch member 32 opposite the stud 86 and spring 87 in a branch 42 of the recess 18 vwith the'upper end of the push button proje-cting through a perforation lil `in the top of vthe frame 15 and extendingv above the.

top of the frame 15. collar 46 on the and a push-button located in said housing push button limits the upward movement of the push button. ylhe shank 19 of the headrest passes through a perforation 48 in the top of the frame at one side of the perforation 44 to enter the recess 18. rlhe spring 87 normally holds the latch member 32 in an inclined position to latch the shank 19 to the plate 22 and to the chair back, andY at the same time serves to normally hold the push button in its elevated position.

When it is desired to release the shank 19 from the plate 22 for the purpose of detaching the head-rest from the chair back, or to secure a` higher orilower position-of adjustment. for the head-restrelative to the chair back, the operator pushes the push button 40 downwardly against the action of the spring `37 with one hand while` with the-other hand he either adjusts or removes the head-rest. As soon as pressure on the push button 40 ,isreleased the latch member 82 automatically returns to an inclined position to latch the head-rest to-its new position of adjustment,.which it retains until the push button Y is;y again depressed.

Apiece of upholstering material is fitted over the rear face ofthe frame -16 to conceal the` plate22 and recess 18 previously to fitting the frame 16 into the frame 15. The shank 19 may be cylindrical instead of polygonalif desired. The plate 22 and latch membery 32 are both adapted to be constructed by stamping from .sheet met-al,

wherebyV uniformity Yof parts, uniforini-ty and reliability of strength, and relative-ly .light weight, of parts is insured. My improved vhead-rest support lends itself to convenient assembly and operation in connection with a metal chair back frame, and is compact and adapted to he entirely housed within the upholsteringframe with the eX- ceptionof the head of the push button.V

The apparatus herein shown and described is capable of considerable `parting frointhe spirit ofv my invention.

VWhat I claim is: f l i y1. Head-rest supporting and vadjusting apparatus comprising a chair-back upholstering frame provided with a housing recess open at thetop, an annular metal frame ing the open end of said housing recessysaid annular frame being provided' with a per` foration for the lpassage of a head-rest ,v shank and with a push-button perforation,

a shank guiding plate attached over the rear face of said housing recess and provided with recesses to receive and guide a headrest' shank; vertically, a latch member piv-v otally mounted in said recessand provided at oneend with a perforation to receive the j head rest shank, a member to normally hold said latch member in an inclined position,

t Y "viticationwithin the scope of the claims without den y relation to said plate.` encircling ,sa-id'upholstering frame and closannular metal frame and adapted to be actuated from the exterior of said annularA frame to shift said lat-cli meinber'iiito position to release t-he head-rest shank. Y

` 2. Head-rest supporting and adjusting apparatus comprising a chair back frame, a housing recess in said frame to receive a head-rest. shank and ,shank engaging means, a supporting plate 'spanning said recess and provided with inwardly directed projections at opposite ends having perforations to receive and guide said shank endwise of said shank, a latch member pivotally attachedl to an ear at one side of said supporting plate and provided with a recess to receive said shank and adjustable to lock said shank to .said plate, means to yieldingly holdV said latch member in an inclined position to lock said shank to said plate, and a push-button operable from the top edge ofthe exterior of said frame toengage and Ishift said latch member temporarily to a position to release Y lplate spanning and closing the rear face of said housing recess and-'providedv at. top land bottom with inwardly turned projections providedwith perforations to receive and guide said shank eiidwise of said shankl and with a laterally located inwardly extending projection adapted to pivotally support a andy adjusting latch member, 'a latch member piv'otally ati tached atan intermediate point to said laterally located projection and provided at one end with a shank receiving perforation substantially in alignment lwith said shank supporting and guiding perforationsl and Y adapted to adjustably lock'jsaid Ashank to said plate, means to yieldingly engage said latch member tending to hold said' latch member normally in an inclined position to lock said "shank to said pla-te, anda pushbutton projectingfroin the edge of the; chair Y back frame and adaptedto engage saidlatch member to release .said shankfroin itslocked 4. Head-rest supporting and adjustingV ajl'aparatus comprising a chair-back upholstering frame providedy with a housing Vrecess open atV the top, an annular metal frame of angular cross-.section encircling said upholsteri'ng frame and serving to close the upper end of said housing recess and pro-v vided with a 4perforation for therpassage` ofy a head-rest shank into said recess and a perforation for the passage ofthe head ofa iio push-button from said recess to the exterior of' said metal frame, 'a shankguiding member located in saidrecess and servinglto support and guide the shank of the headrest endwse of said shank, a reslently aotuated lateh member located in said housing recess and serving to normally latch the head-rest shank to Said chair-hack frame, and a push-button projecting from the top edge of said chair-back frame through a perforation n said annular metal frame and operable from the exterior of Said frame to temporarily release Said latch member from l0 said head-rest shank.

In testimony whereof I have hereunto affixed my signature.

LLOYD A. VVIEDERSTEIN.

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