US 3918729 A
A mechanical interlock for securing either ice skates or roller skates to a single base member. The base member has surfaces for receiving the foot of the user and the interlock includes a pair of upstanding studs disposed at one end of the skate which cooperate with recesses in the base plate. An elongated leaf spring is secured to each skate at one axial extremity for pivotal motion in a plane parallel to the plane of the base plate. Disposed on the other axial extremity of the spring is a pair of fingers disposed for snug fitting engagement with the top and bottom respectively of the base plate and the skate.
Claims available in
Description (OCR text may contain errors)
i United States Patent Peters Nov. 11, 1975 INTERLOCK DEVICE FOR SKATES Primun- E.\(1m1'nerLeo Fria ha 75 Invet.Shl'Pt Hld,N.. 1 or r e! e a e on J Assistant E.\'um1'ne/'Dav1d M. Mitchell Asslgneez La Peska s c at s, In Aim/710). Agent, or Firm.lack D. Slobod New York, NY. apart interest 22 Filed: Feb. 10, 1975 [571 h l ABSfTRACT h k A mec anica interlock or securing eit er ice 5 ates  Appl' N03 548362 or roller skates to a single base member. The base member has surfaces for receiving the foot of the user 52 US. Cl 280/113; 280/7.13 and the interlock includes a P of upstanding studs [51 11.1. 01. A63C 17/18 disposed or one end of the shore which cooperate whh  Field of Search 280/7.13, 7.12, 8, 11.27. recesses in the base m An elongated leaf Spring is 2 /11 33 1 1 R, 113 secured to each skate at one axial extremity for pivotal motion in a plane parallel to the plane of the base  References Ci plate. Disposed on the other axial extremity of the UNITED STATES PATENTS spring is a pair of fingers disposed for snug fitting en- 1 405 95] 7/19 St 780/ 33 gagement with the top and bottom respectively of the u 9 lerre 2.998.260 8/1961 Meyer 280/7.l3 base plate the skate 3.043.600 7/1962 Voakes 280/7.l3 4 Claims, 4 Drawing Figures al 7 Q (34 e /2 INTERLOCK DEVICE FoR SKATES BACKGROUND OF THE INVENTION The invention relates to skates and particularly to apparatus which may selectively used as a roller skate or an ice skate. The prior art includes Meyer, U.S. Pat. No. 2,998,260 which shows a shoe having a plurality of depending lugs for engagement with horizontally tapered openings. A disadvantage of the structure shown therein is that the user thereof must carry a screwdriver to make the final connection.'lt is apparent that when roller skating or ice skating it is undesirable to be carrying a screwdriver, because of the danger of falling in addition to the inconvenience. Similarly the apparatus shown in Lynn, et al, U.S. Pat. No. 2,985,461 shows a convertible skate construction which again requires the use of a screwdriver for affixation of the alternate construction.
Examples of other apparatus having a very general similarity to the apparatus of the invention are shown in the following U.S. Pat. Nos. 2,874,970, Mall; 2,868,553, Rieckman; and 3,043,600, Voakes. A disadvantage of the apparatus in the prior art in general is that a separate tool is required and the affixation of the skate to the shoe requires a substantial amount of time and often does not provide for positive fastening between skate and the shoe.
Accordingly it is a primary object of the invention to provide apparatus which provides positive interlocking between the skate and the shoe, which does not require the use of special tools and which further is safe for the user of the apparatus.
Still another object of the invention is to provide apparatus which is simple and inexpensive to manufacture.
SUMMARY OF THE INVENTION It has now been found that these and other objects of the invention may be attained by an assembly comprising means for receiving the foot of a user. The means includes a first generally planar member having two apertures disposed at one end thereof. The apertures are horizontally elongated with a first longitudinal portion thereof being smaller than the second longitudinal portion.
A skate member which may be either an ice skate or a roller skate includes a second generally planar member for having two upstanding studs with heads thereof larger than the body thereof. The heads are positioned and dimensioned to pass freely through the first portion of the elongated apertures and not to pass freely through the second axial portion thereof. A clamp is carried for rotation about a generally vertical axis carried on the skate member. The clamp comprises two opposed fingers. The fingers of the clamp are configured for tight fitting engagement with the generally planar members firmly together upon selective pivotal mo tion thereof.
In one form the fingers will be manufactured of spring steel. Normally the apertures will be disposed with the longitudinal axis thereof in aligned relationship to the longitudinal axis of the first generally planar member.
BRIEF DESCRIPTION OF THE DRAWING The invention will be better understood by reference to the accompanying drawing in which:
FIG. 1' is a perspective view of the foot receiving means in accordance with the invention;
FIG. 2 is a perspective view of the generally planar member which is part of each skate member in accordance with the invention;
FIG. 3 is a sectional view taken through a vertical plane of an assembled ice skate and foot receiving means in accordance with the invention; and FIG. 4 is a side elevational view to a reduced scale of an assembled roller skate in accordance with the invention.
DESCRIPTION OF THE PREFERRED EMBODIMENT Referring now to FIGS. 1 through 4 there is shown a foot receiving means which cooperates with either an ice skate member 12 or a roller skate member 14. Each foot receiving means 10 comprises a first generally planar member 16 having disposed at one end thereof elongated apertures 18, 18. Disposed at the other end of the first generally planar member 16 is a bore having radially extending therefrom two slots 22, 22. Disposed about the bore 20 are ramps 24, 24.
Cooperating with the first generally planar member is a second generally planar member which is ordinarily part either of a ice skate assembly 12 or a roller skate assembly 14. Disposed at one end thereof are two upstanding studs 32, 32 having heads which are dimensioned and positioned for easy passage through the enlarged portion of apertures 18, I8 and which prevent axial travel through the smaller portion of the apertures 18, 18. Disposed at the other end of the second generally planar member 30 is a cylindrical surface 34 having radially extending arms 36 disposed thereabout. It will be understood that the cylindrical member 34 is dimensioned for rotation about the axis thereof within the second generally planar member 30. Extending from the cylindrical member 34 is an arm 38 having a clamp 40 carried at the axial extremity thereof. The clamp 40 includes opposed fingers 42, 44.
In operation the upstanding studs 32, 32 are engaged in the apertures I8, 18. Thereafter the arms 36, 36 are passed through the slots 22, 22 and the arm 38 is rotated such that the fingers 42, 44 are urged into tight fitting engagement between a first generally planar members 16 and a second generally planar member 30. It will be understood that the fingers 42, 44 ordinarily will be manufactured of a spring like material such as spring steel. It will be further understood that the studs 32, 32 ordinarily will not project completely through the apertures 18, 18 but instead will pass only partly through the first generally planar member 10 to avoid any interference with the feet of the user thereof. It will be further understood that the apparatus in accordance with the invention may utilize various foot receiving means and that these may include structures for receiving either a shoe or the foot directly.
Having thus described my invention, I claim:
1. A skate assembly comprising:
means for receiving the foot of a user, said means for receiving including a first elongated generally planar horizontal member having two apertures disposed at one end thereof, said apertures being elongated with a first longitudinal portion thereof being smaller than a second longitudinal portion,' a skate member having ground engaging means, said skate member including a clamp carried on an elongated arm, said elongated arm being carried 4 2. The apparatus as described in claim 1 wherein said fingers are manufactured of spring steel.
3. The apparatus as described in claim 2 wherein said apertures are elongated in a direction which is aligned with respect to the direction of elongation of said first and generally planar member.
4. The apparatus as described in claim 3 wherein said generally vertical axis is established by cylinder and said first elongated generally planar member has an aperture disposed for snug fitting engagement with said cylinder with said means for receiving the foot and said skate member in engaged relationship.