US2552035A

US2552035A - Roller skate

Info

Publication number: US2552035A
Application number: US755362A
Authority: US
Inventors: Charles S Cooke; Lyle Z Barnard
Original assignee: Individual
Current assignee: Individual
Priority date: 1947-06-18
Filing date: 1947-06-18
Publication date: 1951-05-08
Anticipated expiration: 1968-05-08

Description

y 3, 195g c. s. COOKE ETAL 2,552,35

ROLLER SKATE Filed June 18, 1947 Patented May 8, 1951 ROLLER SKATE Charles S. Cooke, J oliet, and Lyle Z. Barnard Lockport Township, 111.

Application June 18, 1947, Serial No. 755,362

G'Claims'. 1

This invention relates to rollerskates.

An object of this invention is to provide an improved roller skate whereby theangulardisplacement of the roller axles may be predetermined for predetermined lateral tilting of the frame of the" roller skate to provide an adjustable turning radiusfor the roller skate. In this way, the roller skate may be adjusted to correspond to the desire of the skaterandto adapt the-roller skate for different skating styles. Also, the roller skate may be adjusted for speed skating where the turning-radius would be relatively large or for figure skating wherethe turning'radius would be relatively small.

In carrying out this object ofthe invention, the roller skate frame carries front and rear shafts which in turn carry the roller axles, and means are provided for angularly positionin the shafts about the axes of the roller 'axles to predetermine the angular displacement of the axles for predetermined lateral tilting of the frame.

Another object of this invention is to provide an improved roller assembly for a roller skate wherein a demountable tire may be readilysecured to or detached from the hub.

Further objects of thisinventionreside in the details of construction of the roller skate and in the cooperative relation between'the component parts thereof.

Other objects and advantages will' become apparent-to those skilled in the art upon reference to the accompanying specification, claims, and drawing in which Figure 1 is a side elevational View of the roller skate with one of the rollers removed;

Figure 2 is a side elevational view of the frame of the roller skate;

Figure 3 is a vertical sectional view taken substantially along the line 33 of Fig. 1; and

Figure 4 is a partial sectional view taken substantiall along the line 3-4 of Fig. 3.

The roller skate is generally designated at l and it includes a frame H having platforms l2 and [3 for supporting a shoe I4. The frame ll preferably is cast from alight metal-such as magnesium and in the-casting operation, nibs 15 are provided on the platforms l2 and I3; The nibs I5 are utilized as supportsfor the'frame H during the machining of the frame. After'the frame is completelymachined, thenibsl 5: are removed.

The'forward end oftheframe I l isprovided with an extension i 8-provided with a bore ll and a cross bore 20. A pin Zlcarriedby a-snubber 22 is received in the bore IQ and is-held in place ,clamp 34 fitting in the transverse bore 3|.

therein by a spring-pressed ball 23 in the bore 20 engaging a groove 24 in the pin 2 l.

The frame II is provided with front and

rear bolsters

26 and 27! and each bolster is provided with

arcuate guide surfaces

28 and 29, the guide surface 29 being located in an arcuate groove. These arcuate guide surfaces are preferably CO? axial with the roller axles; The bolsters are also provided with transverse holes 30 and enlarged transverse bores3l. The bores i9 and 20, the

arcuate guides

28 and 29, the holes 38, and the bores 3! are preferably machined in the casting For each bolster 26 and 2'! there is provided a yoke 32 havin arcuate guide surfaces cooperating with the

guide surfaces

28 and 29 of the bolsters. The yokes 32 are also provided with a groove 33 for receiving a clamp 34 having a tongue fitting the groove 33, and with the The clamps 34 have tapped holes for receiving screws 35 extending through the holes 30 in the bolsters. The sides of the yokes 32 opposite the grooves 33 are also provided with grooves 36 for receiving pins 31 carried by the bolsters.

The pins 3! and the clamps 34 maintain the cooperating arcuate guide surfaces of the yokes and bolsters in engagement and permit angular adjustment of the yokes with respect to the bolsters. When the yokes are adjusted to the desired positions with respect to the bolsters, they are clamped in place by tightening the screws 35. The adjustments of the yokes 32 are angular adjustments about the axes of the roller axles.

The lower ends of the yokes 32 are bifurcated andlongitudinally carry shafts 39. The shafts 39 between the bifurcations carry axle housings 4i] which in turn carry roller axles 4|. The axle housings 40 and hence the axles M are pivotally mounted on the shafts 39.-

The under side of each yoke 32 is provided with a downwardly extending pin 43 and the upper side of each axlehousing is provided with an upwardly extending pin M. These pins 23 and 44 are offset with respect to each other, as indicated in Fig. 4, and are providedwith grooves for receiving springs 45 and is carried by pads Q1: and formed on the axle-housings All. The

springs

45 and 46, in engaging the pins 43 and 44, resilientl maintain the axle housings ll! vertical with respect to the frame H and prevent wobbling thereof when the skate is raised from the skating surface. The springs permit the frame I I to be freelytilted laterally from the vertical position against the action of the springs, as indicated in broken lines in Fig. 3.

When the frame II is laterally tilted and the shafts 39 are horizontal, no angular displacement is given to the axle housings 5B and the axles 4|. If, however, the shafts 39 are positioned out of the horizontal, as is illustrated in Fig. l, lateral tilting of the frame ll causes an angular displacement of the axle housings so and hence the axles 4|. This angular displacement of the axle housings 60 provides for turning movement of the roller skate. The amount of angular positioning of the shafts 39 determines the amount of angular displacement of the axle housings 59 upon a predetermined amount of lateral tilting of the frame I! and hence determines the turning radius of the roller skate. By adjustably positioning the yokes 32 angularly with respect to the bolsters and 2?, the angular positions of the shafts 39 about the axes of the axles 4! may be adjusted and hence the turning radius of the roller skate may be adjusted.

Suitable indications may be provided on the bolsters and yokes for indicating the angular positions of the yokes with respect to the bolsters whereby adjustment of the turning radius of the roller skate may be readily determined.

In this Way, the roller skate may be adjusted to correspond to the desire of th skater and to adapt the roller skate to different skating styles.

Also, in this way, the roller skate may be adjusted for speed skating where the turning radius would be relatively large or for figure skating where the turning radius would be relatively small.

The axles 4| rotatably carry hubs 56 by means of ball bearings 5| and 52. Each hub is provided with a flange 53 and an annular groove 55 adjacent the flange. Diametrically opposed slots 55 are provided in the flange 53 and enter into the annular groove 54. A pair of semi-circular rings 56 are located in the annular groove 56 and have projections 51 extending through the slots 55 in the flange 53. Springs 58 urge the semi-circular rings outwardly but the rings may be compressed the hub and, in so doing, the semi-circular rings 56 are forced inwardly against the action of the springs 58. When the tire abuts the flange 53, the springs 58 snap the semi-circular rings outwardly so that they engage in the groove to of the tire. Thus the tire is securely mounted on the hub. In order to remove the tire, the projections 51 are pushed inwardly to collapse the springs 58 whereby the semi-circular rings are moved inwardly to permit removal of the tire. As will be noted, the tire is provided with a pair of grooves 60 so that the tire may be reversely mounted on the hub. By reversing the tire from time to time, the wear of the tire ma b maintained substantially uniform.

In this way, an improved assembly for a roller skate is provided wherein a demountable tire may be readily secured to or detached from the hub. This permits ready changing of the tires to adapt the roller skate for various styles of skating and it also permits reversing of the tires to permit for even wear.

While for purposes of illustration, one form of th1s mvention has been disclosed, other for thereof will become apparent to those skilled in the art upon reference to this disclosure, and, therefore, this invention is to be limited only by the scope of the appended claims and prior art.

We claim:

1. A roller skate comprising a frame, front and rear shafts carried longitudinally by the frame, an axle provided with rollers carried laterally by each shaft to be angularly displaced upon lateral tilting of the frame, and means for adjustably angularly positioning the shafts about the axes of the axles without displacing the axles with respect to the frame to predetermine the angular displacement of the axles for predetermined lateral tilting of the frame.

2. A roller skate comprising a frame, front and rear shafts carried longitudinally by the frame, an axle provided with rollers carried laterally by each shaft to be angularly displaced upon lateral tilting of the frame, means for adjustably angularly positioning the shafts about the axes of the axles without displacing the axles with respect to the frame to predetermine the angular displacement of the axles for predetermined lateral tilting of the frame, and spring means for resiliently preventing wobbling of the axles about the shafts.

3. A roller skate comprising a frame having front and rear bolsters, a yoke adapted to be carried by each bolster, a shaft carried longitudinally of the frame by each yoke, an axle housing carried by each shaft, an axle carried laterally by each axle housing, said axles being angularly displaced upon lateral tilting of the frame, and an adjustable connection between each yoke and bolster for angularly positioning the shafts about the axes of the axles to predetermine the angular displacement of the axles for predetermined lateral tilting of the frame.

4. A roller skate comprising a frame having front and rear bolsters, a yoke adapted to be carried by each bolster, a shaft carried longitudinally of the frame by each yoke, an axle housing carried by each shaft, an axle carried laterally by each axle housing, a pair of rollers carried by each axle, said axles being angularly displaced upon lateral tilting of the frame, an adjustable connection between each yoke and bolster for angularly positioning the shafts about the axes of the axles to predetermine the angular displacement of the axles for predetermined lateral tilting of the frame, and spring means between the yokes and axle housings for resiliently preventing wobbling of the axle housings.

5. A roller skate comprising a frame, front and rear bolsters on the frame and each provided with an arcuate guide, a yoke for each bolster provided with corresponding arcuate guides, means for clamping the yokes to the bolsters with the arcuate guides in engagement, a shaft carried longitudinally of the frame by each yoke, an axle housing carried by each shaft, an axle carried laterally by each housing at the axes of the arcuate guides, a pair of rollers carried by each axle, said axles being angularly displaced upon lateral tilting of the frame, and the clamping means for the yokes and bolsters providing for angular positioning of the shafts about the axes of the axles to predetermine the angular displacement of the axles for predetermined lateral tilting of the frame.

6. A roller skate comprising a frame, front and rear bolsters on the frame and each provided with an arcuate guide, a yoke for eachbolster provided with corresponding arcuate guides, means for clamping the yokes to the bolsters with the arcuate guides in engagement, a shaft carried longitudinally of the frame by each yoke, an axle housing carried by each shaft, an axle carried laterally by each housing at the axes of the arcuate guides, a pair of rollers carried by each axle, said axles being angularly displaced upon lateral tilting of the frame, the clamping means for the yokes and bolsters providing for angular positioning of the shafts about the axes of the axles to predetermine the angular displacement of the axles for predetermined lateral tilting of the frame, and spring means between the yokes and axle housings for resiliently preventing wobbling of the axle housings.

CHARLES S. COQKE.

LYLE Z. BARNARD.

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

UNITED STATES PATENTS Number Name Date Re. 4,292 Plimpton Mar. 7, 1871 1,543,070 Ertl June 23, 1925 1,566,609 Larsen Dec. 22, 1925 1,603,529 Faust Oct. 19, 1926 1,795,821 Baldwin Mar. 10, 1931 FOREIGN PATENTS Number Country Date 87,612 France Oct. 29, 1869