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Publication numberUS2425574 A
Publication typeGrant
Publication dateAug 12, 1947
Filing dateAug 24, 1945
Priority dateAug 24, 1945
Publication numberUS 2425574 A, US 2425574A, US-A-2425574, US2425574 A, US2425574A
InventorsJohn F Stewack
Original AssigneeJohn F Stewack
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Brake for baby carriages
US 2425574 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

Aug. 12, 1947. J, F, STEWACK 2,425,574 BRAKE FoR BABY GARRIAGES Eil-ed Aug. 24, 1945 Patented Aug. 12, 1947 UNITED vls'rA'r'lazs PATENT OFFICE BRAKE FOR BABY CARRIAGES John F. Stewack, Downers Grove, Ill.

Application August 24, 1945, Serial No. 612,441

(Cl. 18S-20) 3 Claims. l

The present invention relates to brakes for baby carriages and the like.

The primary object of the invention is to provide a safety catch, normally in operative position, to prevent a baby carriage and the like from rolling unless released by an attendant.

Another object of the invention is to provide a safety catch of simpler and more compact construction than what is disclosed in prior devices.

With the foregoing and other objects and advantages in view, the invention consists of the novel arrangement and construction of parts hereinafter described and claimed.

In the accompanying drawings illustrating the invention,

Figure 1 is a longitudinal section of rear end of a baby carriage with invention installed.

Figure 2 is a top plan view thereof.

Like numerals are employed in the description and drawings to designate the same parts of construction.

The rear wheels I are rotatably mounted on axle 2 which is supported on the longitudinal under frame 3 of the carriage. This frame is provided with the upwardly and rearwardly eX- tending arms 4 of the connecting handle bar 5 which is mounted rotatably therebetween. Mounted concentrically on the hubs of said wheels on their inner sides are the fixed discs 6 which are adapted to revolve with the wheels. f

These discs are provided around the perimeter with a plurality of transverse recesses or grooves 'l adapted to normally seat the transverse rollers 8 which are mounted in the bifurcated end of superimposed, forwardly projecting arms 9. Arms 9 are rotatably mounted on the ends of a transverse rocker shaft I which is rotatably supported on the frame 3. Between the hubs on said arms il and the supports for shaft I are fixed collars II provided with lateral fingers l2 which engage the undersides of said arms. Coiled springs I3 are secured to the undersides of the arms 9 and top of frame 3 and are adapted to normally depress the said arms and hold the rollers 8 in engagement with grooves l of discs 6. Centrally of the shaft I0 a rocker arm I4 is secured thereto and to the top of said rocker arm is pivotally attached a release rod I which eX- tends to the handle bar 5 to which it is pivotally connected by a short arm I6 projecting from the said handle bar. This short arm is adapted to move either up or down and thereby draw the release bar l5 rearwardly. This movement draws back the rocker arm I4 and elevates the 2 two arms 9 through the lifting action of the iingers I2, thus disengaging rollers 8 from the grooves on the discs 6. This allows the wheels I to roll freely.

It will be understood that the coiled springs I3 may be dispensed with if the two arms 9 are constructed with sufficient weight to cause them normally to drop into the position shown in Figure 1. This change would be within the scope and spirit of the invention.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:

1. A wheel vehicle consisting of traction wheels and a rotatable propelling handle;v peripherally grooved discs mounted concentrically on said wheels and adapted to revolve therewith, a transverse rocker shaft mounted on the under frame of said vehicle and provided with a rocker arm pivotally connected to said rotatable vehicle handle; longitudinally disposed bifurcated arms revolvably mounted on said rocker shaft and provided with transversely disposed rollers mounted in the bifurcations of said arms and adapted normally to seat in grooves in said discs and prevent rotation thereof; lifting ngers secured to said rocker shaft and engaging the undersides of said bifurcated arms and coiled springs interposed between said arms and the under-frame of the vehicle and adapted normally to effect engagement of the said rollers and grooves.

2. A wheel vehicle comprising traction wheels, a rotatable propelling handle thereon, peripherally grooved discs mounted concentrically on f' said wheels and adapted to revolve therewith, a

transversely disposed rocker shaft provided with a rocker arm pivotally connected to said handle, longitudinally disposed bifurcated arms revolvably mounted on said rocker shaft, and a transversely disposed roller mounted in each of said bifurcated arms and adapted to normally seat in a groove of one of said discs complemental thereto and prevent rotation thereof.

3. A wheel vehicle comprising traction wheels, a rotatable propelling handle thereon, peripherally grooved discs mounted concentrically on said wheels and adapted to revolve therewith, a transversely disposed rocker shaft provided with a rocker arm pivotally connected to said handle, longitudinally disposed bifurcated arms revolvably mounted on said rocker shaft, a transversely disposed roller mounted in each of said bifurcated arms adapted to normally seat in a groove of one of said discs complemental thereto and 2,425,574 3 v prevent rotation thereof, and lifting fingers secured to said rocker shaft and engaging the underside of said bifurcated arms. Nugerm JOHN F. S'I'EWACK. 5 2 REFERENCES CITED The following references are of record in the Number le of this patent:

UNITED STATES PATENTS Name Date Troxell July 16,1872 Miller et a1 Feb. 25, 1890 Rogers etal 1 Oct. 17, 1939 FOREIGN PATENTS Country Y Date Germany Oct. 13, 1910

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US129072 *Jul 16, 1872 Improvement in children s carriages
US422245 *Aug 6, 1889Feb 25, 1890 Charles miller
US2176472 *Jul 6, 1938Oct 17, 1939Rogers FrankWheeled vehicle
*DE226983C Title not available
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4733755 *Jun 22, 1987Mar 29, 1988Manning Donald LAnti-rolling device for wheelchair
US5040641 *Mar 26, 1990Aug 20, 1991Phillips Theodore DWheel assembly
US5370408 *Nov 26, 1993Dec 6, 1994Eagan; Chris S.Baby stroller or baby carriage brake systems
US5379866 *Jul 20, 1993Jan 10, 1995Genesis Composites, Inc.Light-weight wheel assembly and static brake for wheelchairs
US5503773 *Sep 8, 1994Apr 2, 1996Genesis Composites, L.C.Method of making a composite handlebar
US5603520 *Jan 12, 1995Feb 18, 1997Teksourc, LcLight-weight wheel assembly for wheelchairs
US5667235 *Apr 10, 1995Sep 16, 1997Teksource, LcMulti-adjustable wheelchair
US5713585 *Dec 4, 1995Feb 3, 1998Curtis; Greg M.Safety brake stroller
US5769442 *Oct 10, 1995Jun 23, 1998Teksource, HlcStructural shell frames and method of making same
US6298949 *Aug 16, 1999Oct 9, 2001Link Treasure Ltd.Safety brake device for infant stroller
US6484851 *Aug 13, 2001Nov 26, 2002Jae Hyu SongParking brake for automobiles
US7175004 *May 27, 2004Feb 13, 2007Aprica Kassai KabushikikaishaWheel simultaneous brake mechanism and caster rotation preventing mechanism having simple mechanism
US8333393 *Feb 6, 2012Dec 18, 2012Excelligence Learning CorporationStroller with braking device
US20050006185 *May 27, 2004Jan 13, 2005Kenzou KassaiWheel simultaneous brake mechanism and caster rotation preventing mechanism having simple mechanism
US20050236235 *Apr 22, 2004Oct 27, 2005Deng-Hsi ChenWheel-braking structure
US20050258007 *May 24, 2005Nov 24, 2005Ames True Temper, Inc.Three-wheeled braking wheelbarrow
US20120133105 *Feb 6, 2012May 31, 2012Excelligence Learning CorporationStroller with braking device
CN1126679C *Jul 5, 1999Nov 5, 2003英属维京群岛商育丰有限公司Braking device of baby carriage
Classifications
U.S. Classification188/20, 188/31
International ClassificationB62B5/04, B62B9/08, B62B5/06
Cooperative ClassificationB62B5/0442, B62B5/0414, B62B5/066, B62B9/08, B62B5/0461
European ClassificationB62B9/08