US 3734244 A
A roller skate brake controlling the free running speed of the skates to assist beginners in obtaining balance and agility on the skates. For this purpose, friction brake pads are secured on a body member pivotally attached at one of its ends to the roller skate wheel supporting frame. The body member has a releasable lever connected to one end of a tension spring. The other end of the spring is connected to the skate frame, and such spring is arranged to urge the friction brake pads toward a braking engagement with the wheels. An adjusting screw is mounted in the body member and has engagement at one end with a skate portion for varying the extent of application of the brakes. The extent of braking to be applied to the wheels is pre-set by the beginner for the purpose of controlling the free running speed as desired. A plurality of spring connecting holes are provided in the lever to adjust the operating strength of the spring. In a modified form of the invention, the spring having the adjustment is connected directly to the body member.
Description (OCR text may contain errors)
United States Patent 1 Roddy 1 3,734,244 51 May 22,1973
ROLLER SKATE BRAKE FOR BEGINNERS Filed: Aug. 9, 1971 Appl. No.: 170,237
 U.S. Cl. ..188/83, 188/74, 188/167, 280/11.2 51 Int. Cl ..Fl6d 63/00  Field of Search ..188/166, 167, 83, 188/74; 280/1 1.2
[5 6] References Cited UNITED STATES PATENTS 3,000,643 9/1961 Levin ..280/11.2 2,346,756 4/1944 Hoppe ..188/83 2,833,347 5/1958 Terry ..188/83 X Primary Examiner-George E. A. Halvosa Attorney-Eugene M. Eckelman  ABSTRACT A roller skate brake controlling the free running speed of the skates to assist beginners in obtaining balance and agility on the skates. For this purpose, friction brake pads are secured on a body member pivotally attached at one of its ends to the roller skate wheel supporting frame. The body member has a releasable lever connected to one end of a tension spring. The other end of the spring is connected to the skate frame, and such spring is arranged to urge the friction brake pads toward a braking engagement with the wheels. An adjusting screw is mounted in the body member and has engagement at one end with a skate portion for varying the extent of application of the brakes. The extent of braking to be applied to the wheels is pre-set by the beginner for the purpose of controlling the free running speed as desired. A plurality of spring connecting holes are provided in the lever to adjust the operating strength of the spring. In a modified form of the invention, the spring having the adjustment is connected directly to the body member.
1 Claim, 4 Drawing Figures 1 ROLLER SKATE BRAKE FOR BEGINNERS BACKGROUND OF THE INVENTION This invention relates to new and useful improvements in roller skate brakes and particularly pertains to braking means therefor.
Beginners on roller skates find it difficult to keep their footing due to the lack of friction between the skates and the supporting surface. In other words, the difficult part of learning is to stand up or move without the skates flying out from under the skater. Learning would be much easier if the skates had brake means to control rotation of the wheels since the beginner could stand up and move about to obtain confidence. Roller skates heretofore employed have utilized braking means so that the forward or backward movement of the skater can be controlled but in order to apply such brakes, the skates have to be manipulated in a manner to engage a friction portion thereof with the skating surface. For this purpose, some skate structures employ friction pads or the like at the front. These structures, however, are not intended to assist beginners but rather require experience and good balance to operate.
SUMMARY OF THE INVENTION According to the present invention and forming a primary objective thereof, braking means are employed which operate on the wheels of the skates and apply constant braking to check free running speed and thus assist the beginner skater in keeping his balance.
Another object is to provide a roller skate brake of the type described which is adjustable whereby to apply a selective braking effect to the skates as determined by the progressed ability of the skater.
Another object is to provide brake mechanism which can be attached to existing skates without appreciable alteration of such skates and which by their structure are capable of attachment to substantially all skates.
The invention will be better understood and additional objects and advantages will become apparent from the following description taken in connection with the accompanying drawings which illustrate preferred forms of the device.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. I is a side elevational view of a roller skate showing the present brake means applied thereto, a portion of the skate being broken away for clarity;
FIG. 2 is a vertical sectional view taken on the line 2-2 of FIG. 1, portions of the skate in this view also being omitted;
FIG. 3 is a fragmentary bottom plan view taken on the line 33 of FIG. 1, this view also having portions of the skate removed; and
FIG. 4 is a fragmentary bottom plan view similar to FIG. 3 but showing a somewhat modified form.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference is now made in detail to the drawings. In such drawings, the numeral designates a conventional roller skate having a longitudinal inverted U- shaped frame 12 on which is supported front and rear wheel assemblies. The front wheel assembly has a top supporting plate 14, best seen in FIG. 2, on which the front portion of a skaters foot is supported, and such top plate has depending flanges 16 which extend along the outside surfaces of the U-shaped frame 12 in slidable engagement and held in assembled engagement by inwardly pressed tab portions 18. The top plate 14 is adjustably positioned longitudinally of the frame 12 by a releasable locking assembly 19 in a well known manner. The top plate 14 has side flanges 20 extending downwardly on the sides and front, and these flanges are cut away at 22 for receiving outwardly extending arms 24 having shoe engaging wings or clamp members 26. One of such arms 24 is provided on each side of the skate and these arms have laterally movable support on headed pins 28 and adjustment by an adjusting screw 30 threadedly engaged in flanges 32 depending integrally from arms 24 in a well known manner.
Secured to the depending flanges 16 is a front undercarriage 34 of conventional construction. Such undercarriage comprises extensions 38 on the flanges 16 to which is secured by a longitudinally extending bolt 42 a U-shaped member 40 housing a filler 44 of resilient material such as rubber. Filler 44 provides a shockproof connection between the skate frame and the wheels in a well known manner. Member 40 has a cylindrical portion 45 for receiving the axle 46 for front wheels 48. v
The rear wheel assembly also has an undercarriage 50 employing a top plate 52 for supporting the rearward portion of the skaters foot. Top plate 52 has a rear contoured heel abutment flange 54 and suitable connection to rear wheels 56.
According to the present invention, brake means are provided which are arranged to apply constant braking to the front wheels. These brake means comprise friction brake pads 58 engageable with the front wheels 48.
Pads 58 are secured on a laterally extending body member 60 having a central upwardly projecting extension 62, FIG. 2, with oppositely extending shaft portions 64 which project freely through apertures 66 in the depending flanges 16. For attachment of the present brake to existing skates, the apertures 66 are bored in the flanges, and as shown, such apertures may be provided through the inwardly pressed tab portions 18. For installing the brake on existing skates, the flanges 16 may be bent outwardly a slight amount for inserting the shaft portions 64 in the apertures 66. Such flanges are then bent back to their original position.
A tongue 68 extends forwardly from body portion 60 and is slightly angled intermediate its ends at 70 in order that the free end thereof in a set position of the body member will be directed substantially at the front edge of the skate. The free end of the tongue has downwardly extending ears 72, also seen in FIG. 3, having apertures 74 for receiving shaft portions 76 on a lever 78 which extends rearwardly along the tongue 68. The lever 78 has a plurality of longitudinally spaced apertures 80 arranged to receive one end of a tension spring 82 connected at its other end in an aperture 84 in the flange portion 20 at the front of the skate. The free end of the lever 78 is adapted to be held releasably in close proximity to the tongue 68 by a transverse latch spring 84 connected at its ends in notches 86 in the side edges of the tongue 68.
With the lever 78 held in close proximity to tongue 68, the spring 82 urges the body member 60 forwardly so that the friction pads 58 apply a braking force to the front wheels. The capability of the braking force is accomplished by connecting the inner end of spring 82 in a selected one of apertures 80. The connection of the spring in one of the apertures is readily accomplished by first releasing the end of lever 78 from the latch spring 84 and then pivoting the lever to its phantom line position of FIG. 1. In such position, the spring is under little or no tension for easy engagement in a suitable aperture 80. After the spring has been connected, the lever 78 is rotated back against the tongue and latched in place. 1
An adjusting screw 88 has threaded engagement in the body member 60 and is adapted for abutment against flange portion 38, or as shown, against the head of bolt 42. By threadedly backing off screw 88, the pressure of the friction pad 58 on the wheel is increased under the action of spring 82. A beginner thus can adjust the screw 88 to apply a specific braking effect until such time that he becomes proficient enough to release the brakes completely. When he first starts practice the brake may be used to lock the front wheels entirely or provide only restricted rotation of the wheels. In such case the skates would provide the sensation of merely walking. As the beginner advances, however, in balance and agility, he can release the brakes slightly to allow some rolling movement of the wheels by adjusting screw 88 inwardly. By progressively threading the screw inwardly as he advances, he will be able subsequently to completely release the brakes.
FIG. 4 illustrates a somewhat modified form of the invention. In this embodiment, body member 60 has a tongue 68' provided with a plurality of apertures 90 to which the spring 82 is directly connected. The operation is identical as the first described embodiment, the only difference being that the lever 78 is omitted.
It is to be understood that the forms of my invention herein shown and described are to be taken as preferred examples of the same and that various changes in the shape, size and arrangement of parts may be resorted to without departing from the spirit of my invention or the scope of the subjoined claims. For example, the brake means could be applied to the rear wheels instead of to the front wheels or on both with equally good results. Also, the pivotal support of the body member 60 can be by suitable means other than by the pivotal shaft connection with flanges 16, such as by a clamp connection or the like on the flanges or on other parts of the wheel carriage.
Having thus described my invention, I claim:
1. Brake structure for roller skates of the type having a frame with forward and rearward portions and also having pairs of front and rear wheels, said brake structure comprising a. a body member having an upward extension arranged for pivotal attachment to the frame of the roller skates,
b. friction brake means on said body member arranged for engagement with the front wheels of the skate,
c. a forward extension on said body member having a free end,
d. lever means pivotally connected at one of its ends to said free end of the extension,
e. a tension spring connected at one of its ends to said lever intermediate the ends of the latter and arranged to be connected at its other end to a forward portion of the skate for urging said body member to a position of engagement of the skate wheel by said friction brake means,
f. said lever in one position extending rearwardly in close proximity to said extension and in another position being pivoted forward for easy connection of said spring between said lever and the skate,
g. adjustable connecting means for said spring means on said lever to vary the available force thereon on said friction brake means,
h. and adjustment means on said body member controlling the braking force of said friction brake means under the action of said spring means.