US2593962A

US2593962A - Child's stroller

Info

Publication number: US2593962A
Application number: US94552A
Authority: US
Inventors: Paul L Barker
Original assignee: Individual
Current assignee: Individual
Priority date: 1949-05-21
Filing date: 1949-05-21
Publication date: 1952-04-22
Anticipated expiration: 1969-04-22

Description

A ril 22, 1952 P. L. BARKER CHILD'S STROLLER 3 Sheets-Sheet 1 Filed May 21, 1949 IN V EN TOR.

A ril 22, 1952 P. L. BARKER CHILD S STROLLER s'sneets-sneet 2 Filed May 21, 1949 INVENTOR. Pou/ A. Ear/58f i BY Ap 1952 P. 1.. BARKER 2 CHILD'S STROLLER Filed May 21, 1949 3 Sheets-Sheet 3 INVENTOR. Pau/ L fiarker @JWW Patented Apr. 22, 1952 Paul L; Barker, Detroit, Mich.

ApplicationMay

21, 1949, Serial no. 94,552

6 Claims.

This invention relates to a childs stroller.

It is an object of this invention to produce a stroller in the form of a childs chair detachably mounted on a dolly so as to permit use of the chair with or without the dolly. The invention furthermore contemplates a stroller construction which enables mounting a childs chair rigidly on the dolly by a simple and quick operation. The inventionyis also directed to the provision of a stroller which is sturdy and safe and which at the same time can be manufactured economically;

In the drawings:

Figure 1 is a perspectiveview of the stroller of this invention.

Figure 2 is a perspective View of the stroller showing the manner in which the chair is manipulated to mount it on the dolly frame.

Figure 3 is a perspective view of the dolly frame with the chair removed and with the handle in the collapsed position.

Figure 4 is a sectional view taken along lines 4-4 in Figure l.

Figure 5 is a sectional view taken along the lines 5-5 in Figure 1.

Referring to the drawings, and particularly to Figure 1, there is shown the stroller of this inventlon which comprises a chair and a dolly, generally designated as It and H, respectively. The chair it comprises a pair of S-shaped side frames i2 which are spaced apart and arranged to support therebetween a seat member 13. Frames 12 are preferably formed of a resilient material such as spring steel and are shaped with a lower run it which forms the ground engagin member when the assembly is used as a chair. Frames. 12 are held in spaced relation at their upper ends by means of seat I3 which is preferably formed as a Wire frame with a canvas covering. A foot panel l6, corrugated at each end as at H for reinforcement, extends across and is secured to the bottom runs l5 as by riveting. Frames ii are arranged with the upper'run M. extending rearwardly from a return bend [8 at the front of the chair" with its free end i9at' the back of the chair. Bottom run l5 extends from the return bend 2! at the rear of the chair forwardly with its free end 2! projecting outwardly beyond and below return bend l8. Anintermediate run 33 connects return bend 18 with return bend 2%; As is shown more clearly in Figure 2 the free ends 2 l of bottom runs I5 are of general iii-shape and offset downwardly. At their rear endsbottom runs l5 are continued from an upwardly extending portion" 22 of return bend 23 so that when the chair is' positioned upon a sep- Dolly H is preferably formed as a U-shapecl frame 2 3 having a pair of side rails 24 which are connected at one end by a front rail 25. Frame 23 is supported at its front end by a pair of casters 265 which are mounted on U-shaped brackets 21 whichv extend outwardly from and are spot welded or otherwise secured to the side rails 24. A bumper bar 28 extends around the front end-of frame it: from one of the brackets 21 to the'other. A pair of depending brackets 2'9 are secured to side rails 24 forwardly of the rear ends thereof.

Brackets 29 are shaped to project outwardly beyond rails 24' and form supports for an axle 3| at the ends of which a pair of wheels 32 are mounted.

Adjacent the rear ends of side rails 25 there is mounted a handle assembly 33'. Handle 33 is preferably fashioned as two Y-

shaped frames

34 and 35,- the" closed or necked ends of which are arranged in overlapping relation and pivoted together as at 35 The frames are held in the assembled position shown in Figure 1 by ascrew 3? which passes through the' overlapping portions of the: frames and on the end of which is threaded a wing nut 33. The two frames of the handle assembly are arranged to be jack-knifede to the collapsed position shown in Figure 3 by simply removing nut 38,. withdrawing. screw'3l, and piv-' oting the upper frame 34 downwardly so as to occupy a position. between the legs of the lower frame 3% The upper frame 3'4 is reinforced: by a handle bar 39 which extends across the open end of the: frame. The lower frame is reinforced. by a bracket. 6 which: iswelded or otherwise secured. to the legs of the frame near: the lower. ends thereof so that the handle assembly as a whole is quite? rigid.

v The lower ends? of frame; 35 arereac'h provided with a pair of spaced pins H; which project out wardly and which are arranged to engage cor"- respondingly' spaced apertures 42 formed; atfthe rear ends of side rails 24. This enables the handle assembly to be mounted firmly on the dolly. By springing the legsof frame 35 towards each other the handle: may be disengaged completely from the dolly or, as" shown in Figure 3, framef 35' may be manipulated to disengage only the rear set of pins and pivot forwardly on the other setof pins to the collapsed position on the dolly; l

For the purpose of securingchair I 0 on dolly l I ina rigid and quickly detachable manner means are provided on frame? 23: for releasably engaging. the front andrear ends of bottom runs? I 5". Aim

cordingly, a pair of spaced

rods

43 and 44 are extended across frame 23 adjacent its front end and are welded or otherwise secured to side rails 24.

Rods

43 and 44 are spaced apart so that in the assembled position of the chair and dolly, rod 43 is engaged within the U-shaped offset portion 2| of bottom run l5 and rod 44 engages the lower surface of bottom run l5 just to the rear of the offset portion 2 l.

Across the rear end of frame 23 and spaced forwardly of brackets 29 there is secured to side rails 24 a support bracket 45. Bracket 45 is positioned such that when the front ends of bottom runs ii are engaged with

rods

43 and 44 as described, the bottom portion 22 of the return bend rests upon bracket 45. These curved portions 22 are arranged to be clamped down on bracket 45 by means of a pair of L -shaped draw bolts 46 which extend through plate 45 and which are threaded at their lower ends to receive a wing nut 4i.

When the dolly is in the collapsed position as shown in Figure 3 and it is desired to mount the chair on frame 23 so as to provide a stroller, frame is pivoted upwardly and manipulated to engage the rear set of pins 4! with the rear set of holes 42 in rails 24 so as to hold frame 35 in the operative position. The upper frame 34 is likewise pivoted to the operative position shown in Figures 1 and 2 and locked in place by screw 31 and wing nut 38. The chair is then mounted on the dolly by tilting the chair forwardly to the plane of frame 23 and inserting the curved ends 2| of bottom runs l5 between

rods

43 and 44. The chair is then tilted back to a'position where the curved portions 22 of the return bends 28 rest upon bracket 45, the draw bolts 46 having been previously arranged as shown in Figure 2 so as to clear the inner edges of the bottom runs 15. With the chair in this position the bottom runs are supported at their front ends upon rod 44 with the U-shaped end 2| hooked beneath rod 43. Bolts 46 are then turned 90 so as to overlie and engage the upper surface of bottom runs it. The bolts are then drawn down tightly by means of wing nuts 47, and the chair is thereby securely mounted on the dolly.

It will be noted that when the chair is mounted on the dolly as described above, rod. 44 engages the bottom face of bottom run l5 to hold the curved ends 2| of the bottom runs in engagement with rod 43. As is shown more clearly in Figure 5 it will be seen that this arrangement prevents the chair from accidentally falling off the dolly even though the draw bolts 46 might be loosened. Since the rod 44 insures engagement of the rod 43 with the U-shap-ed ends 2i of the bottom run it is obvious that the chair is prevented from being shifted to any great extent in either a rearward or forward direction. The bottom runs can be disengaged with

rods

43 and 44 only by tilting the chair upwardly and forwardly, and this is unlikely to occur when a child is occupying the chair.

Side rails 24 are preferably spaced apart a dis-- tance corresponding to the spacing of frames I2 so that when the chair is mounted on the dolly, the bottom runs [5 fit nicely between rails 24 and are prevented from shifting transversely of the frame.

What I claim is:

1. A childs stroller comprising in combination a seat member, a pair of resilient, upright S-shaped frames supporting said seat at each side thereof, said S-shaped frames each having a bottom horizontal run which serves as the ground engaging member when the assembly is used as a chair, a substantially rectangular dolly frame, a pair of wheels at the front end of said dolly frame, a pair of wheels at the rear end of said dolly frame, a pair of spaced rods extending across said frame adjacent one end thereof, said bottom runs having their free ends bent into an upwardly opening U-shaped portion, said rods being spaced apart to receive therebetween said U-shaped portion when the bottom runs are inclined to the plane of the dolly frame, one of said rods being engaged within said U-shaped portion and the other rod supporting the bottom run from below at a point adjacent said U-shaped portion when the bottom runs are pivoted about said rods into the plane of said dolly frame, a bracket extending transversely of the dolly frame adjacent the other end thereof and spaced from said rods so as to support the other end of said bottom runs, a pair of L-shaped bolts having a threaded portion extending downwardly through said bracket and another portion above said bracket extending transversely over said bottom runs and nuts fitted on the threaded ends of said bolts below said bracket for drawing said bottom runs downwardly against said bracket.

2. The combination as set forth in claim 1 wherein said bolts are retained loosely on said brackets so that said transversely extending portion can be pivoted in a horizontal plane to a position clear of said bottom runs.

3. A child's stroller comprising in combination a seat member, a pair of resilient, upright S-shaped frames supporting said seat at each side thereof, said S-shaped frames each having a bottom horizontal run, said bottom runs having at the opposite ends thereof downwardly offset, upwardly opening U portions which serve as ground engaging members when the assembly is used as a chair, a dolly frame, supporting wheels on said dolly frame, a pair of spaced members extending transversely across the dolly frame adjacent one end thereof, said transverse members being spaced apart to receive therebetween the U portions at the free ends of said bottom runs when said frames are tilted forwardly to incline said bottom runs to the plane of said dolly frame, said U portions at the free.

ends of said bottom runs engaging the underside of one of said transverse members and they portions of said bottom runs adjacent said U portion engaging the topside of said other trans:

verse member when the bottom runs are pivoted from said inclined position into the plane of said dolly fran'le, and means adjacent the other end of the dolly frame for supporting and releasably engaging the opposite ends of said bottom.

5. A childs stroller comprising in combination a seat member, a pair of upright, S-shaped frames supporting said seat at each side thereof,

said S-shaped frames each having a bottom run extending lengthwise of the seat, said bottom runs having downwardly offset portions at the rear ends thereof which form ground engaging members when the assembly is used as a chair, said side frames having another run spaced above said bottom run, a U-shaped spring portion integrally connecting said other run with said downwardly offset portions at the rear ends of said bottom runs, a substantially flat dolly frame, supporting wheels on said dolly frame, means on said dolly frame detachably engaging the front ends of said bottom runs, a support member extending transversely across the rear end of said dolly frame on which said downwardly offset portions are adapted to be positioned, and L-shaped drawbolts having a threaded portion extending downwardly through said support, and another portion adapted to overlie and extend transversely across said downwardly ofiset portions for securing the rear ends of said bottom runs to said dolly frame without restraining the free flexing of said U-spring portions.

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

UNITED STATES PA 'I'ENTS Number Name Date 262,545 Lewis Aug. 8. 1882 1,277,361 Bauman Sept. 3, 1918 2,347,754 Shay May 2, 1944