US2649310A - Push chair - Google Patents

Description

Aug. 18, 1953 Filed April 24, 1951 D. SEBEL PUSH CHAIR 2 Sheets-Sheet l INVENTOR David Saba] ATTORNEY Aug. 18, 1953 D. SEBEL 7 2,649,310

PUSH CHAIR 7 Filed A ril 24, 195i 2 Sheets-Shet2 INVENTOR Da vl'd Sebel ATTORNEY Patented Aug. 18, 195 3 UNITED STATES PATENT OFFICE Application April 24, 1951, Serial No. 222,550 In Great Britain February 26, 1951 3 Claims. (01. 28047.40)

The present invention relates to pushchairs, more particularly demountable pushchairs, and has an object to provide an improved construction ofa demountable pushchair which is easily and readily assembled and disassembled, and which when it is disassembled can be packed into a reduced space thereby facilitating transport and storage.

'Heretofore it has been the usual practice to assemble the component parts of pushchairs in the factory as by welding or riveting for example so that once assembled the pushchair cannot be disassembled for transport or storage and consequently occupy considerable space. The component parts of the pushchair of the present invention on the other hand can be completely manufactured in the factory, packed in containers of reduced size, and readily and easily assembled when and where required. As an example of one of the advantages of thepushchair according to the present invention, it is pointed out that in one embodiment of the invention the component parts corresponding to four pushchairs can be packed and accommodated within the height, length, and breadth of one of the pushchairs when assembled.

According to the present invention there is provided a demountable pushchair comprising a pair of side frames supported upon wheels and rigidly connected in spaced relation solely by body supporting portions of the chair interposed therebetween and removably secured thereto by releasable attachment means.

Conveniently, the body supporting portions may comprise a seat, a back rest, and a footrest, eachside frame being formed from a length of tubular metaland having a, horizontally disposed centre portion and end portions curved downwardly and centrewards in the shape of a C, which end portions areadapted to support the wheels of the chair. The ends of the said end portions are apertured to receive bolts or spindle pins upon which the wheels are rotatably mounted and which are screwthreaded to provide means for securing the footrest and the backrest to the side frames. The backrest is also provided with projections which engage in apertures formed in the upper portions of the side frames in order to position the backrest at the desired angle with respect to the frames.

The seat is provided at each side with upwardly extending supporting members of sheet metal for example which are adapted to embrace the horizontal centre portion of the side frames and. each of which is secured to the corresponding side frame by a screw and nut. Preferably,-the seat supporting members are adapted to receive and locate mudguards which also act as arm rests and which are also secured to the side frames by the saidscrew and nut.

The invention will nowbe described with referencetothe accompanying drawings in which:

Figure .1 is a side elevation of a pushchair constructed according to the invention, the near side wheels being omitted to show details of construction; and

Figure 2 is a front elevation showing the components of the pushchair disassembled.

Referring to the drawings, a pushchair according to the invention comprises a pair of side frames or c members I each formed from a length of metal tubing the ends of which are curved downwardly as shown in the drawings to provide horizontally disposed wheel supporting portions 2, a seat 3,.a footrest I, combined mudguards and arm supports 5, a backrest 6, handle I, and wheels 8. The seat3 comprises a dished metal pressing and is supported upon side members 9 of sheetmetal curved alongtheir upper edges as at Ill to match the profile of themetal tubing forming the side frames I. The upper portions of the side members 9 are formed with a'horizontally extending recess I I adapted to receive downwardly extending portions 12 .of the mudguards 5 and thereby locate the mudguards with respect to the seat. The portions I2, side members 9, and side frames. I- are apertured as at It, I4 and I5 respectively to receive screws I6 which, together with nuts I'I, serve to secure them in position.

The footrest 4 also formed .of .sheet metal is provided with supporting members I8 adaptedito seat on the frontwheel supporting portions 2' of the side frames and are apertured as at I9.to receive bolts 26 passing through apertures ii in the said portions and by meansof whichbolts the-members I8 aresecured'in position.

The bolts 20 are also adapted to serve as axle pins for the wheels 8 for which purpose they are formed with an unthreaded portion 22 of a length slightly greater than the thickness of the wheel hub 23 which is apertured as at 24 to receive the bolt 28. By passing the bolt 28 through the aperture 24 and screwing a nut 25 tightly up to the end of the screwthreaded portion of the bolt the wheel is located upon the unthreaded portion 22, the aperture 24 being such as to permit the wheel to rotate freely. The threaded portion of the bolt is then passed through the aperture 2i in the side frame and through the aperture I9 in the footrest support I 8 to receive a nut 26 by means of which the wheel, axle pin and footrest support are firmly secured to the side frame.

The handle I is formed of a length of metal tubing bent in the form of a U the free ends of which are secured as by welding for example in lugs 2'! which embrace the tube and are formed at their lower ends with extensions 28 apertured as at 29 to receive the bolts 29 supporting the rear wheels of the pushchair. The back rest 9 is secured to the legs of the handle in any convenient manner and in the embodiment shown in the drawings, the backrest is formed of a metal stamping and is welded along opposed side edges to the handle I.

The rear wheel supporting portions 2 of the side frames l are apertured as at 30 to receive bolts 20 and it will be apparent that by assembling the rear bolts and wheels in the manner already described for the front wheels and passing the threaded portion of the bolt through the aperture 30 and the aperture 29 in the lug extension 28 to receive the nut 26, the rear wheels, backrest and handle are firmly secured to the side frames.

In order to support the backrest in the desired position, the lugs 21 are formed with upstanding projections 3| adapted to engage in locating slots 32 formed in the wall of the side member 'as shown in Figure 1.

There is thus provided a simple and sturdy construction of a pushchair which can be readily assembled and disassembled, the wheels being located by the side members I which are rigidly held in parallel relationship by the seat 3, footrest 4 and backrest 5, the complete assembly being rigidly secured by means of two screws I 6, and four bolts or axle pins 20.

The footrest 4 and support I8 may be omitted in certain constructions, the side frames then being secured together by the seat and backrest only.

When disassembled, the component parts of the pushchair can be packed practically fiat and occupy very considerably less space than the assembled chair. It will be understood that the invention is not limited to the above described embodiment thereof and that it includes toy pushchairs as well as full size pushchairs. The seat, footrest and backrest may be of any convenient construction always providing they form, when the chair is assembled, substantially rigid connections between the side frames of the pushchair. The seat and backrest may also be padded or upholstered in any suitable manner.

What I claim is: r

1. A demountable pushchair comprising a pair of side frames each supported upon a front wheel and a rear wheel, releasable means securing each wheel individually to its frame, a rigid seat extending between the frames'releasable attachment means securing the side edge portions of said seat to the respective frames, a rigid back rest spanning between the legs of a U shaped push handle and having the side edge portions thereof secured to the respective legs of said handle, the free ends of the legs being secured to the respective frames by said rear wheel securing means, and projections on said legs intermediate the length thereof adapted to engage in apertures in the respective frames to fixedly 10- cate the handle with respect to the frames.

2. A demountable pushchair comprising a. pair of side frames each supported upon a front wheel and a rear Wheel, releasable means securing each wheel individually to its frame, a rigid seat extending between the frames, releasable attachment means securing the side edge portions of said seat to the respective frames, 2. mudguard on each of said frames and secured thereto by said seat attachment means, an inverted U shaped push handle having the free ends of the legs thereof secured to the respective frames by said rear Wheel securing means, a back rest having the side edge portions thereof rigidly secured to the respective legs of said handle, and a foot rest spanning between'and secured to the respective frames by said front wheel securing means.

3. A demountable pushchair comprising a pair of side frames, axle pins respectively supporting a front wheel and a rear wheel on each of said frames and secured to the respective frames, a

rigid seat extendin between the frames, mudguards disposed adjacent the respective frames, releasable attachment means securing one side edge portion of the seat and one mudguard to each side frame, an inverted U shaped push handle having its legs detachably secured to the rear wheel axle pins, 2. back rest spanning between the legs and having the side edge portions thereof respectively rigidly secured to said legs, means on the handle for releasably engaging a frame to position the handle with respect thereto, and a foot rest extending between the front portions of the frames and having the side edge portions thereof detachably secured to the respective frames by said front wheel axle pins,

DAVID SEBEL.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 547,419 Chichester Oct. 8, 1895 594,027 Loebs Nov. 23, 1897 1,213,017 Reinert Jan. 16, 1917 1,952,467 Slee Mar. 27, 1934 2,540,823 Heller Feb. 6, 1951 2,582,737 Aries Jan. 15, 1952 2,597,860 Gerber et al. May 27, 1952 FOREIGN PATENTS Number Country Date 587,119 Great Britain Apr. 15, 1947

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