US2116204A - Roller skate clamp - Google Patents

Description

May 3, 1938. l. JAFFEE ROLLER SKATE CLAMP Filed March 5, 1955 FIG. 2

FIG 4 INVENTOR. Jew/v6 L/AFFEE w ?,Z/6(

e I I ATTORNEY.

Patented May 3, 1938 P T O FI RQLIJER SKATE oLAMr 7 Irving Jaifee, New York, N. Y. Application Mamas, 1935, Serial No. 9.35s

60laims. (o1. 2s0 11.s2) a vention itself, both as to its fundamental prin This invention relates to skates and more particularly to a new andimproved toe clamp, particularly adapted for use is not limited thereto and edge of the shoe, because theclamp does not as a matter of fact, it is not.

Attempts to use a skate under such conditions are likely to result in falls with-attendant injury. One reason for this difficulty is thatin the case of a swivel clamp the freedom of motion allows the clamp to slide longitudinally of the shoe, shifting its position. Since childrens shoes are customarily made very broad at the toe and have little curvature in the radius of attachment of the clamp, it requires-careful adjustment of such clamps to secure the skate firmly and securely in position and many children.

are incapable of doing so. a

It is an object of this invention. to provide a skate clamp which will conform to the curvature of the shoe sole, which duced likelihood of working loose and which is so constructed and arranged. as to limitthe swiveling movement of the outer portion of 'theiclam'p within such limits that while the clamp may adjust itself through a sufiicient amount'to engage the shoe sole firmly accidentally slipping off, it .nevertheless cannot swing so far in either direction as to permit Still other objects and advantages of my invention will be apparent from the specification. The features of novelty which I believe to be characteristic of my invention are set forth with particularity in the appended claims. My in- As-such clamps are ordi who may not understand the necessity.

will engage the sole firmly and tenaciously without injury to it-, with re-:

and without likelihoodv of ciples and as to its particular embodiments will bestbe understood by reference to the specification and accompanying drawing, in which Fig. 1 is a top plan view of a skatewith a clamp according to my invention mounted thereon;

Fig. 2 is a sideelevation, partly in section, of the same; p Fig, 3 is a bottom plan view thereof;

Fig. 4 is. a top plan view of a modified form of a clampaccording to my invention;

Fig. 5 is abottom plan thereof V a Fig. 6 is a side elevational view partly in section; and

r Fig. 7 is a fragmentary vertical line 1-1 of Fig. 1.

'Referring now more particularly to Fig. 1, l designates the sole of the skate at the toe portion. Secured to the sole I haveindicated the extremities 2 of the structure which carries the front wheels. Since the mounting and arrangement section on the of the wheel structure forms per se no part of my invention the same grammatic form. v

Projecting downwardly from the under side of the sole from the position of the toe clamp, there is provided an arm 3 bifurcated at its lower extremity to provide spacedportions 3a and 3b. The narrowed upper end of this arm may be the sole portion and its upper extremity headed over. For the purpose ofadjusting the Width of the clamp there is provided is shown only in diamay be provided with a squared portion to receive a wrench.

The left and right clamps comprise horizontally extending. portions 6a and 6b having downturned inner portions 1a and 1b provided with a threaded hole engaging .the threaded portions 411. and 4b. The horizontal portion may be adjustably secured on the skate by means of a downturned flange on each edge of the sole as 8a and 8b at the forward side, 9a, and at the rear side, having inwardly faced notches l9. and II to receive the horizontal portions 611 and 6?). Thus by rotating the bolt the clamps will move inwardly and outwardly, depending on the direction of rotation.

The sole engaging portion I 2a andJZb is an L-shaped. piece preferably pivotally secured on the sliding portion byrivets i311 and I3b-and the upstandingrportion is. preferably bent inwardly slightly at the top as at Ma may be provided on opposite edges of the clamp as at l5b to receive a band of elastics I60. and [61).

Thus it will be seen that the sole engaging and Mb: and notches portion may swing through an are upon the horizontal portion. For the purpose of limiting this movement I may extend the horizontal portion inwardly on a taper as at l8a and Nb so that at the desired limit of forward movement of the outside of the clamp, the tapered portion strikes against the forward face of the plates 9a and 8b, as indicated by the dotted lines in Fig. 3.

The limit of movement in the other direction is preferably provided by cutting away the outer extremity of the horizontal portion at an angle outwardly to the rear as at Ila and Ilb so that at the limit of rearward movement the outermost part of the horizontal portion engages the vertical portion of the sole engaging part, as indicated by the position of the left-hand clamp in Fig. 3.

It will be understood, however, that the plates 8a and 812 may serve to limit the backward movement of the clamp, if desired, but in this instance it would be necessary to extend them further to the rear and I prefer to utilize the contact between the outer and inner portions of the clamp for providing the rear stop.

Referring now more particularly to Figs. 4, and 6, I have shown a modified form of clamp secured to the skate in a somewhat difierent manner. In this instance no down-turned flanges may be provided on the skate sole, but there may be instead rivets 20a. and 20b extending downwardly from the sole of the skate and having an enlarged lower head spaced from the sole of the skate by a distance sufiicient to permit the horizontal portion of the clamp, each of which is provided with slots 2 la. and 2 lb respectively, to be held against the sole of the skate thereby. The general formation of the horizontal portion of the clamp and of the sole engaging portion is otherwise similar to that already described with the exception that the sole engaging portion in this instance is pivoted at the rear outward extremity of the horizontal portion of the clamp and the pivoted portion is not provided with the inwardly extending arm as before.

In this instance 22a and 22b designate the rivets about which the outer portion of the clamp is swingable and, as before, the faces 23:]. and 231) project outwardly to the rear, and the rear extremity contacting with the vertical face of the sole engaging portion forms a stop limiting the rearward movement. In this instance it may be desirable to increase the angle at which the outer ends of the horizontal portions are cut away and if desired the configuration of the edges 23a and 231) may be made such that the striking of the vertical portion against the forward edge constitutes a stop limiting the forward motion.

While I have shown and described certain preferred embodiments of my invention it will be understood that modifications and changes may be made without departing from the spirit and scope thereof, as will be clear to those skilled in the art.

I claim:

1. In a skate clamp, in combination, a pair of transverse clamping members secured to the under side of the sole of the skate for transverse sliding movement, threaded means for driving said clamping members, a pair of L-shaped shoeengaging clamps respectively mounted to swivel upon the external part of said transverse members, each transverse member and cooperating Lshaped clamp having portions arranged to engage each other at a predetermined angular position of said L-shaped clamp, whereby the backward movement of said swiveled L-shaped clamp is limited.

2. In a skate clamp, in combination, a pair of transverse clamping members secured to the under side of the sole of the skate for transverse sliding movement, threaded means for driving said clamping members, a pair of L-shaped shoeengaging clamps respectively swiveled upon the external part of said transverse members, each transverse member and cooperating L-shaped clamp having portions arranged to strike to limit the backward movement of said L-shaped clamp, the vertical sole-engaging portion of said clamp having a narrowed zone to position an elastic for contact with the shoe sole.

3. In a skate clamp, in combination, a pair of transverse clamping members secured to the under side of the sole of the skate for transverse sliding movement, threaded means for driving said clamping members, a pair of L-shaped shoeengaging clamps respectively mounted to swivel upon the external part of said transverse members, and means for limiting the turning movement of said clamp in either direction to less than 90.

4. In a skate clamp, in combination, a pair of transverse clamping members secured to the under side of the sole of the skate for transverse sliding movement, threaded means for driving said clamping members, a pair of L-shaped shoeengaging clamps swiveled upon the external part of said transverse members, said L-shaped clamps and said transverse members having portions arranged to strike to limit the backward movement of the clamp, and said L-shaped clamp having a projection beyond the pivot arranged to strike an abutment to limit the forward move ment of the clamp.

5. In a skate clamp,'in combination, a pair of transverse clamping members secured to the un der side of the sole of the skate for transverse sliding movement, and having a longitudinal slot therein, the forward outer ends of said transverse members being cut away, a pair of L-shaped shoe-engaging clamps respectively swiveled upon the rear outer extremity of said transverse members, said L-shaped clamps and said transverse members having portions arranged to strike to limit the backward movement of the said L- shaped clamps.

6. In a skate clamp, in combination, a pair of transverse clamping members secured to the under side of the sole of the skate for transverse sliding movement, threaded means for driving said clamping members, a pair of L-shaped shoeengaging clamps swiveled upon the external part of said transverse members, the vertical portion of each shoe-engaging clamp having a reduced width intermediate its ends and a band of buffer material surrounding said reduced portion, said transverse members and said L-shaped clamps having portions arranged to engage each other at a predetermined angular position of said L- shaped clamp, whereby the backward movement of said L-shaped clamps is limited.

IRVING J AFFEE.

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