US2503942A

US2503942A - Adjustable high chair

Info

Publication number: US2503942A
Application number: US643626A
Authority: US
Inventors: Engelberg Markus; Engelberg Goldie
Original assignee: Individual
Current assignee: Individual
Priority date: 1946-01-26
Filing date: 1946-01-26
Publication date: 1950-04-11
Anticipated expiration: 1967-04-11

Description

April 11, 1950- M. ENGELBERG ETAL 7 2,503,942

' ADJUSTABLE HIGH CHAIR Filed Jan. 26, 1946 IN V EN TORS MA RKUS ENGELBERG 60L 0/ E E/VGEZBfEG B Patented Apr. 11, 1950 UNITED STATES PATENT OFFICE ADJUSTABLE HIGH Markus Engelherg'and Goldie Engelberg,

Brooklyn, N. Y.

Application January "26, 1946; Serial No. 643,626

3 Claims.

This inventionrelates to adjustable chairs, and. particularly although not exclusively to highchairs.

It is primarily within .the contemplation of our invention to enable'a-babys highchair to be capable of such adjustment that it will conveniently accommodate iniants'of 'difl'erent heights, and in difierent positions. Most conventional highchairs have either no adjustment features whatsoever, or have limited adjustability with respect to a single member, such as the position of the foot-rest. It isan important object of our in vention to increase the utility of devices in this to remove the child from the chair to a bed, in

asmuch as our invention can be so manipulated as to'enable the child to be accommodated in asrestful a position, such .asxfor sleeping purposes, as

would be'the case if he were transferred to a bed.

It is still a furtherobject of our invention to. provide means for safely maintaining the back rest in any position. And it is another object of our invention'toprovide' lateral walls which will provide. safety barriers for the child when he is either in a sitting or'reclining position;

It is also within thecontemplation of our invention to provide simple and easily manipulable means for enabling the aforesaid adjustments to be made. And in this aspect of our invention it is a further important object to enable the backrest and foot-rest portions to be simultaneously adjustable into coactive positions by a single manual manipulation. I

And it is our objective to enable the abovementioned features to be incorporated in a structure of relatively simple; readily fabricated and inexpensive design.

Other objects, features and advantages will appear from'the drawings and the description hereinaiter given;

Referring to the drawings,

Figure 1 is afront view of the preferred form of our invention;

Figure '2 is a side view thereof;

FigureB isla fragmentary side view of the seat and back-rest portions in an intermediate reclin-- ing position.

Figure 4 is a fragmentary side view of the device when serving :as .a bed to accommodate the child in .a lying position, the foot-rest being shown by dot-dash lines in an extended position.

Figure 5 is an enlarged iragmentary part-sectional view of the back-rest adjusting mechanism,v substantially in the position shown in Figure 2.

Figure 6 is (a back View of Figure 5.

Figure '7 is a bottom View, somewhat enlarged; of the linkage arrangement attached to the underside of the seat.

Figure 8 is a fragmentary bottom view of the foot-rest, looking up in the direction 8-8 of Figure 2, and

FigureQ is a section of Figure 8 takenalong line 99.

In the preferred form of our invention illustrated; the device contains a conventional leg arrangement l5 supporting the seat l6 andthe back-rest I1 hingedly connected at l8 to the seat. Pivotally connected. to the back-rest, and supported upon the two side walls 1 9s and 20 is the table portioni2l. Swingably mounted upon rod 22 is the foot-rest portion 23, said rod ibeing secured to the two front legs 24.

In the preferred construction of the foot-rest 23 there are embodied two tubular side members 25 movable as a unit by virtue of their attach-- ment to the horizontal connector member 26, the

tubes being apertured at their upper portions 21 through which the said rod 22 operatively extends. Telescopically extending within the tubes 25 are the rods 28, these being bent forwardly at substantially right angles to support the foot-board 29. The shanks of screw members '30 extend through and are in threaded engagement with the walls of tubes25, thevtermi-nals of said screws- (not shown) being engageable with the-inserted portions of. the rods 28 to hold them in any selected position with respect .to said tubes. The arrangement is hence such whereby the foot-board- 29 can be adjustably moved vwith respect to the seatlfi and. the back-rest ll, for accommodating infants of diiterent heights.

Attached tolbackerest- I! by suitable fastening; meansasuchaslthe wocdscrews- 3! (Figure 5) is the bracket 32 1 containing two spaced, perforated walls 33 supporting the transverse shaft 34.

Mounted over saidshaft is the upper loop 35.01 the bar 36, said loop being iormedlby making a return bend of the upper portion of the bar. The arrangement. issuch that the terminal portion 310i bar 35 constitutes-aninner. wall in adjacent and substantially parallel relation to the opposite downwardly extending portion 38 of bar 36. EX- tending through two aligned holes in

portions

31 and 38 is the shank of the stud 39, the hand manipulable nut 40 being in threaded engagement with the shank of stud 39. The arrangement is hence such that upon an operative rotation of nut 40,

portions

31 and 38 associated with loop 35 can be brought closer together or farther apart, thereby varying the width of the loop and permitting either a free sliding movement thereof with respect to shaft 34, or a tight frictional engagement of said looped portion with said shaft at any predetermined portion along the extent of the loop. It is of course obvious that the material of bar 36, or more particularly of the upper portion thereof, must be of resilient properties, the space 4| between

walls

31 and 38 being such as to permit a free relative movement of the looped portion 35 with respect to shaft 34 when the nut 49 is in a retracted position.

The opposite or lower terminal portion 52 of bar 36 is pivotally mounted upon the bracket 43 attached to the underside of seat 15, the bracket containing two spaced walls A l and 9-5 (Figure 7) supporting the transverse shaft 46 upon which is pivotally mounted the terminal portion 42 of bar 38. An intermediate portion 48a of said bar 38 is twisted substantially at right angles to the face of the bar; and pivotally attached at 41 therof is the link 48 pivotally attached at 49 to the foot rest 23.

It is apparent that upon a loosening of the handle or nut 48 and the rearward movement of back-rest l1, said back-rest can be brought to and firmly maintained at any desired position. It will further be observed that the pivotal movement of terminal 42 of bar 36 will simultaneously cause the link 43 to move the foot-rest 23 into an upward position. handle or nut t8 both the back-rest 1 and footrest 23 will remain in a set position. It is also apparent that the bar 3'6 serves not only as an element in the linkage system above described, but also serves as a structural support for the back-rest H in any of its various positions.

It will be observed that in the upright position shown in Figure 2, the side walls [9 and 20 each have downwardly extending portions to overlapping the lateral sides of seat IE. When the backrest is brought to the reclining position shown in Figure 4, the edge 51 of each of said portions 59 is substantially parallel and in adjacent relation to seat I6. It is thus apparent that side walls I9 and 29 constitute protective barriers for the child in any position of the chair.

The invention above-described embodies a structure which is not difficult of fabrication in that it consists of certain conventional features of highchairs together with an arrangement of linkages and other elements which, though novel, can be produced and assembled into place at a low cost.

In the accompanying drawings, the invention has been shown merely by Way of example and in preferred form; but obviously many variations and modifications may be made therein which will still be comprised within its spirit. It is to be understood, therefore, that the invention is not limited to any specific form or embodiment,

except insofar as such limitations are specified in the appended claims.

We claim:

1. In a highchair, a seat structure comprising a seat and forward and rear supporting legs Upon a tightening of the therefor, a foot-rest pivotally attached to the front portion of the seat structure, a back rest pivotally attached to the rear of the seat structure, a bracket attached to the rear of the backrest and containing a horizonal shaft, a back supporting link the upper portion of which is bent back into the form of a loop with an elongated aperture through which the shaft extends and with which it is in pivotal "and slidable engagement, the bent-back terminal of the link being movable with respect to the body of the link for varying the width of the loop, whereby the sides thereof may be brought into pressing engagement with the shaft to hold the link fixed with respect to the back-rest, the lower portion of the said link being pivotally attached to the seat structure, and another link the forward portion of which is pivotally connected to the foot-rest and the rear portion of which is pivotally connected to the said back supporting link intermediate the terminals thereof, whereby an operative pivotal movement of the back-rest will pivotally actuate the foot-rest.

2. In a highchair, a seat structure comprising a seat and forward and rear supporting legs therefor, a foot-rest pivotally attached to the front portion of the seat structure, a back-rest pivotally attached to the rear of the seat structure, a flat back supporting link bent substan tially L-shaped, the upper portion of which is pivotally and slidably attached to the back-rest and the lower portion of which is pivotally attached to the underside of the seat, said lower portion having a part thereof twisted substantially at right angles to the flat surface of the bar, and another link the forward portion of which is pivotally connected to the foot-rest and the rear portion of which is pivotally connected to said twisted part of the back supporting link, wherby an operative pivotal movement of the back-rest will pivotally actuate the foot-rest.

3. In a highchair, a seat structure comprising a seat and forward and rear supporting legs therefor, a foot-rest pivotally attached to the front portion of the seat structure, a back-rest pivotally attached to the rear of the seat strucure, two side walls attached to and extending forwardly from the lateral portions of the backrest, said walls being in overlapping relation to the seat when the back-rest is in its upstanding position, and connecting means pivotally attached to the foot-rest and the back-rest, whereby an operative pivotal movement of the latter will pivotally actuate the former.

MARKUS ENGELBERG. GOLDIE ENGELBERG.

REFERENCES CITED The following references are of record in thefile of this patent:

UNITED STATES PATENTS