US2569729A

US2569729A - Child's adjustable seat

Info

Publication number: US2569729A
Application number: US4791A
Authority: US
Inventors: Nold Elton Lewis
Original assignee: Individual
Current assignee: Individual
Priority date: 1948-01-28
Filing date: 1948-01-28
Publication date: 1951-10-02
Anticipated expiration: 1968-10-02

Description

Oct. 2, 1951 E. NOLD 2,569,729

CHILD'S ADJUSTABLE SEAT Filed Jan. 28, 1948 lllllhl .IJE I LU INVENTOR. ELTON LEW/5 NOLD ATTORNEY Patented Oct. 2, 1951 UNITED STATES PATENT.

OFF-ICE CHILDS ADJUSTABLESEAT' qElton Lewis Nold, Detroit, Mich. a plication'jahiiaryza 194s, Serial No. 4,791

chair having parallel side portions and are-'ac-' cordingly not universally suitable for mounting ona'dultchairs having various angular or curvate side portions for the seator armrests. When such auxiliary chairs are-mounted on adult chairs i claims. (o1.155 1s1) having non-parallel orcurvate side portions; the

auxiliary seat tends to slide off ,or tip on its mountingwith consequent danger of injury to the child. l

A primary object of the present invention is to provide a sturdy, safe, and readily adjustable auxiliary chair having chair engaging legs which are vertically and laterally adjustable for mountingon the seats or arm rests of adults chairs of various widths and heights, and which are also: pivotally adjustable about verticalaxes to permit adjustment to chair seats or arm rests having various angular, circular, orother curvate shapes. Other objects of the present invention are to.

provide an auxiliary chair of the character described which may be readily mounted either on the floor to serve as a stool fora child; or on arif adults chair seat or armrest; toprovide positive means for preventing lateral movement ofthe auxiliary chair when mounted on an adultsl chair; and to provide an improved adjusting means to facilitate the vertical, pivotal, and lateral adjustment of the chair engagingmembers." Other objects of thisinvention Willappearirr the following description and appended-claims,

reference beinghad to the accompanying, draw? ings forming a part of this specificationwhereiu like reference charactersdesignate corresponding parts in the severalviews.

In the drawings:

1 is a perspective view showing a fragmentary portion of a conventional adults chair, and also showingan "auxiliary chair embodying the present invention, the auxiliary chair being elevated and tilted rearward from its mounted positionj j Fig. 2 is a reduced bottom view of the auxiliary.ichair shown in Fig. ,1,fshowing the legs-in various positions ofpivotal andlateraladjustment in phantom; Y

Fig. 3 isa reduced partially sectioned fragmen tary front elevatiori'ofthe auxiliary seat shown in Fig. 1, showing the left supporting member in l l 2 phantom in an alternative adjustmentyand Fig. 4 is-an enlarged fragmentary section taken in the direction of the arrows along the line 4-4 position of vertical of Fig. 3yshowingthe vertically adjustable friction clamping means. y

Beforeexplaining the present invention in 'detail; it is to beunderstood that the invention is notiimited iIl-its application to the details of construction andarrangement of parts illustrated in the accompanying drawings, since theinven-f tion is capable of other embodiments and of being practiced or carried outin various ways. Also it is to be understood that the ,phraseology or terminology employed herein is for the purpose of description and not of limitation.

A particular embodimentof the present inven-[ tion is described by way of example in connection with the drawings,v wherein Fig. 1 shows a conventional dining room chairhaving the seat Ill and essentially parallel sides 12. The auxiliary chair is slightly elevated and tilted back from the seat ID to show details of construction, including the seat body 14 supported at its lateral ends by a pair or formed wire or rod supports, each support comprising a pair of essentially parallel spaced depending legs I6 joined at their lower extremi ties by thechair-side engaging portion 18 which extends essentiallyparallelto the plane of the; seat bodyl 4. Projecting inward from each lateralf pair of legs l6 are thepair of vertically adjustable supporting arms 20 joined at their inward extremities by the chair-seat engagin portion 22 providedfor resting horizontally on theseat It).

By virtue of the formed rod. construction shown,

the convenient vertically adjustable connection between each arm" Ell and its corresponding leg |6 is readily provided by'the essentially horizontal "U-shapedloop 2 4jaround the leg It at the outer extremity of th garm. 20. The connection is reinforced-joy an essentially vertical U-shaped loo 2 6 resting" against 'the leg member I6, as shownfin Figs". 3 and l. The internal spacing be tweenfthefsides. (of each U,shap'd loop 24,, is

slightly "gre ater'tlmn the" diameter of the Ileg [8f thereinto'permittheloop 24 to be readily sidable vertically along the length 'oi the leg I6. However, when the loop 24,isun"der torque tending torotateitabout its horizontal axis of symmetry, as when the chair-seat engaging portion 22 rests on'the seatl [land the seat I 4 supports the weight of a" child," iriction between the leg I6 and the correspondingloopsilan .26 binds the adjustable connection against vertical movement.

It has been found for all practical purposes that spaced adjusting increments.

The upper portion of leg it provides the essentially perpendicularly inward extending arm. 30 adapted to underlie the seat It and to be clamped thereto by one of the two sheet metal' brackets 32. The bracket-s32 provide. the parallel notches 34 to engage the arms 39 and thereby to prevent accidental movement of the latter transversely to their longitudinal axes. One of each of a pair ofdepending studrbolts 36 embedded within the underside of theseat I l, Fig. 3, projectsthrough one of each of the brackets 32 ,and provides'a pivotally adjustable mounting forsecuring the latter to the underside of the seat l4 upon tightening the wingnut-38.

It is apparent from the structure shown that upon loosening the wing nuts 38, the arms 30 may be extended radially of the pivot axes provided by the studs; 36 to permit adjustment of the. chair-side engaging members it to chairs of varfiouswidths. 7 Likewise the pivotal mountings of the brackets 32pe rm it pivotal adjustment of theseat-supportsabout the axes of Lhe studs 36,

so that the chair-side engaging portions 18 will fit essentially flush with sides l2 which may converge toward the back part of the chair, or-ma-y be otherwise angularly disposed tothe chair or provided in various curvate shapes. The pivotal adjustment of applicants seat sup-porting memhers is of particular importance and permits an essentially universal adaptation of his auxiliary chai for mounting on the seat or: arm res.s of conventional chairs of various non-rectangular 7 shapes, as for example the circular chair seat shape frequently encountered in restaurants wherein auxiliar seats of the character .described are particularly useful. Also, by virtue members to permit adjustment thereof for chairs of various widths, heights and angular or curvate shapes.

Having thus described my invention, I claim: 1. In a childs auxiliary chair adapted to rest on the seat of an adults chair, the combination of a seat body, paired legs depending from the lateral portions of said seat body, the lower porof-the pivotal adjustment of the seat supports,

theportions 20'22 are readily adapted to rest firmly. and squarely on the chair-seat l0 regardless of the angularity of the sides l2, so as to avoid accidental forward or rearwardtipping of the auxiliary seat when a squirming child is seated thereon. K .By reason' of the side-engaging portions ifi, the auxiliary seat is positively held against lateral slipping on the seat 10. Likewise, the portions l8, being parallel to the seat body I l, mayserve V as floor engaging members to permit the auxiliary .chair to be. used as a stool formany purposes, as for example to elevate the child before awash bowl. 'In this connection, the seat body Ill isgpreferably covered b a suitable, wear resistant, water repellent, plastic material 40, which may be readily cleaned, and which is suitablyheld in place as by the plurality of broad headed thumb tacks 42.

By the foregoing, applicant has disclosed a novel,. simple, and readily adjustable auxiliary seat which may be safely mounted on a chair and used by a child without danger of slipping or tilting, and which also permits vertical, lateral and pivotal adjustment of the seat-supporting symmetry.

tion of each leg being adapted to engage an adult chair seat, the upper portion of each leg providing a right angle inward extension adapted to underlie the seat body, pivotally adjustable clamping means for clamping each of said right angle extensions to the underside of said seat body in positions pivotally adjusted about a vertical pivot axis, each right angle extension being adjustable radially of said pivot axis upon loosening said pivotally adjust-able clamping means.

2. The combination as claimed in claim 1 and being further characterized in that each of said legs comprises. a formedrod having a pair of spaced depending portions joined at their lower extremities bya chairesideengaging portion and providingsaid right-angle inward extension at their upper portions, and each leg providesva vertically adjustable inward projecting seat-.ene gaging support for resting on the seat of an adul/s chair. g g g 1 3; The combination as claimed in claim 2 and beingfurther characterized. in that each of said inward projecting seat engaging supports comprises a-formed rod having apair of spaced in ward projecting'portions joined; at theirinward extremities by a chair-seat engaging portion, and each being adjustably conneced at its oute jextremity to one of each of said depending legaportions for'vertical adjustment therewith. V V

a. Thecombination as claimed ii -claim 3 and being further characterized in that-each adjustable connection belween {said seat-engaging sup-,

portsand said depending leg portions includes an essentially horizontal .U-shaped bend around the corresponding depending. leg portion andan essentially vertical reinforcingv U -shaped bend ad-.

jacentlsaid depending leg portion, said horizon-. tal and vertical U-shaped bends are provided by the. outer extremities of said;inward projections of said seat engaging supports, and internal spacing between the sides of each horizontal U- shaped bend is slightly greaterthan the diameter of the corresponding depending leg portion;

therein to prmitvertical movement therebe tween, each horizonal U-shaped bendis bound against vertical movement along the dependingleg portions therein by friction contact-therewith uponthe application of torque to said'chair-seat engaging portions, tending to rotate said horizontal .U-shaped, bend about its horizontal axis of 7 REFERENCES CITED The following references are of; record in .the

file of this patent:

UNITED STATES PATENTS Number Name Date;

706,868 Van Alstyne Aug. 12,-19,02 1,008,037 Johnson Nov. 7, 1911 1,126,911 Stull Feb. 2,- 'l 9l5 1,247,161 Silverman Nov. 20, 19 171 1,368,802 Johnson F,eb.g15, 1,921 1,693,166 Walcom, NOV. 27,1928 2,271,616

. EL N. LEWIS NOLD- Feb; 1942