US2295185A

US2295185A - Ski edge

Info

Publication number: US2295185A
Application number: US385248A
Authority: US
Inventors: William F Serr
Original assignee: ERIC PUSINELLI
Current assignee: ERIC PUSINELLI
Priority date: 1941-03-26
Filing date: 1941-03-26
Publication date: 1942-09-08
Anticipated expiration: 1959-09-08

Description

"'Sept; 8, 1942.' w. FgsERR 2,295,185

. l sx1, EDGE l Filed Maren 2e, 1941 3 sheets-sheet `1 Ffm/YT /7) /5' ,4 -im Q/@d N O 1 INVENToR: {R} William /1' Serf?,

e I BY @-5 Si. @mA/ M M ff ATTORNEY w. F. s'ERR Sept. 8, 1942.

SKI EDGE Filed March 26, 1941 y 3 Sheets-Sheet 2 INVENTOR h//Y/l'am F5617" ATTORNEY ASS.

sept. s, 1942.

W. F. S'ERR SKI EDGE Filed Marbh 26, 1941 3S'heets'sheet 3 INVENTOR Wllzdffz Zerr @QW y ATTQIEY Patented Sept. 8, 1942 SKI EDGE William F. Serr, New York, N. Y., assignor, by mesne assignments, to Eric Pusinelli, New York,

Application March 26, 1941, Serial No. 385,248

' 7 claims. (c1. 28o-11.13)

The invention relates to skis and more particularly to metal reenforcing strips commonly known as ski edges.

According to one form which the invention may assume, the ski edge is made up of sections or lengths, each section comprising an inner and an outer strip suitably welded together. The inner strip has spaced keyhole slots, the narrow ends of which are beveled and undercut to seat level headed screws. The outer strips have holes in line with the screws but of smaller diameter than the screw heads, through which a screw driver may be inserted for driving the screws home. Extra holes may be provided in the inner strip for flexibility and the holes in the outer strip may be suitably filled up with plastic after the edge is mounted on the ski. If desired, the ends of the inner strips may be provided with notches on one end and tongues on the other, which intert to assist 'in aligning and locking the sections of ski edge. Furthermo-re, if desired, the side walls of the laminated ski edges may be hollow ground to provide sharper corners on the outer edges of the ski edge to reduce side slipping.

CFI

The ski edge sections may be made either withKA the tongues facing forward or backward. In the event the tongues face forward, a natural shingle effect is obtained, insuring absence of any forward facing transverse edges or ribs on which the snow may catch and slow up the ski. In the event the tongues face backward, it is desirable to place the screws close to the forward ends of the sections to insure holding down tight the forward ends of the sections which overlap theV rear tongues to prevent catching on the snow and slowing down the ski.

In some cases the outer and inner lamination of the ski edge may be separable, the inner strip being permanently fastened to the ski by suitable screws passing through longitudinal slots. The inner strip may have suitable keyhole slots and the outer strip may be provided with integral beveled projections which cooperate with the keyhole slots to hold the outer strips in position.

The invention also consists in certain new and original features of construction and combination of parts hereinafter set forth and claimed.

Although the novel features which are believed to be characteristic of this invention will be particularly pointed out in the claims appended hereto, the invention itself, as to its objects and advantages, and the `manner in which it may be carried out, may be better understood by referring to the following description taken in connection with the accompanying drawings forming a part thereof, in which Fig. 1 is a fragmentary plan View of the bottom of a ski equipped with my invention;

Fig. 2 is a plan View illustrating several sections of my ski edge detached from the ski, locking at the side of the edge which faces the ski;

Fig. 3 is a plan view of a section of my ski edge, looking at the outer side thereof or that surface which contacts the snow;

Fig. 4 is a greatly enlarged fragmentary section taken on the line 4-4 of Fig. 1;

Fig. 5 is a, fragmentary perspective showing the manner of interlocking two adjoining sections of ski edge;

Figs. 6, 7 and 8 are transverse sections taken on the lines 6 6, l-'i and 8 8 of Fig. 4;

Fig. 9 is a fragmentary side elevation of a ski showing the manner of applying my edge to the ski;

Fig. 10 is a view corresponding to Fig. 2, but of a modified form of ski edge;

Fig. 11 is a side elevation showing the ski edge of Fig. 10 attached to a ski;

Fig. 12 is an enlarged, fragmentary, bottom plan view of still another embodiment of my invention;

Fig. 13 is a longitudinal cross-sectional view taken along the line |3--l3 of Fig. 12;

Fig. 14 is a transverse cross-sectional view taken along the line lll-I4 of Fig. 13;

Fig. 15 is a perspective, fragmentary view of the two interlocking strips illustrated in Figs. 12-14 inclusive, indicating the method of assembling these strips;

Fig. 16 is a, fragmentary, transverse, cross-sectional view illustrating a modification of the edge construction of Fig. 12; and

Fig. 17 is a transverse cross-sectional view illustrating an application of the construction of Figs. 12-14 to a center insert strip.

In the following description and in the claims, various details will be identified by specific names for convenience, but they are intended to be as generic in their application as the art will permit.

Like reference characters denote like parts in the several figures of the drawings.

In the drawings accompanying and forming A part of this specification, certain specic disclosure of the invention is made for purposes of explanation, but it will be understood that the details may be modified in various respects without departure from the broad aspect of the invention.

Referring now to the drawings and more particularly to the form of the invention shown in Figs. l-9, inclusive, the reference character I3 denotes the body of a conventional ski which has applied thereto along the lateral edges thereof the metallic sectional edge strips indicated by I I. These edge strips or ski edges are made up of a base strip I2, which is preferably constituted of a strip of steel easily machined, and is provided at spaced intervals with keyhole slots I3 and holes I 4.

A second, outer strip, preferably of hard tempered steel, denoted by I5, and having holes I6, is superimposed upon the strip I2 and the two strips I2 and I5 are suitably attached together as by spot welding at points indicated by I9. This assembly of the two steel strips makes up a unitary structure, a plurality of which are arranged in line and t together to form the continuous ski edges II, as will be understood by those skilled in the art.

Itwill be noted that the outer strips I5k have straight ends which directly abut (see Fig. 5) while the inner or base strips I2 have cooperating notches II on'one end into which t tongues i8 on the other end. These cooperating tongues and notches assist in assembling the ski edges and in holding the sections thereof in alignment.

The bayonet slots I3 have a narrower end 2I beveled, as indicated by 22, to t the beveled heads of screws2-S. The larger parts of the bayn cnet slots I3 are of substantially the same width as the wider sides of the'beveled portions 22. The holes I5 in the outer bars I5 are beveled at their inner and outer edges as denoted by 24, for a purpose hereinafter described, and the minimum diameter of the holes I6 is approximately equal'to the minimum dimension of the beveled portions 22 of the keyhole slots.

The side walls or edges of the sectional strips I i may be hollow ground as denoted by 25 arrd26 (Figs. 6-8) to smoothoif these edges and to make sharper corners to insure le'ss side slipping of the ski on the snow.

To apply the ski edges to the wooden ski; the latter is rst channeled as indicated by 21 (Figs. 6-8) and is then provided with a plurality of drill holes I corresponding to the holes IS, using the ski edge as a templet if desired. The screws 23 arethen placed in theirl keyhole slots I3 by inserting the heads in the wide portions thereof and sliding the screws lengthwise of the slots to snugly engage the bevel portions 22, the assembled edge and screws being indicated in Fig. 9.

This edge is assembled from front of ski to rear, a front section A being indicated already in position in Fig. 9. To apply the succeeding edge assembly indicatedby B in Fig. 9, it is only necessary to insert the screws in their respective holes in the ski and screw the screws home into the wood, the holes I I permitting access of the screw driver into the screw driver slots in the screw heads. The end of the outer bar I5 of section B (Fig. 9) overlies the tongue I8 of the adjacent section A, the tongue I 3 fitting into the notch I'I.

In the same way the successive sections of ski edge will be applied until the desired length is equipped, after which the holes I Ei may be plugged up with plastic wood, or cement, or ski wax, the inner bevel portion 24 assisting in holding the plastic filler material in position.

Referring now to the modification shown in Figs.. and 11, this construction is quite similar to the ski edge above described, the ski body here being denoted by 33, the inner strip by 3|, the outer strip by 32. The holes in the inner strip are denoted by 33, the keyhole slots by 34, the holes in the outer strip by 35 and the screws by 35. The inner strips have notches 31 in one end, which receive tongues 38 in the other end of the adjoining strips and the strips are welded together at the points indicated by 39, as in the preceding form.

The form illustrated in Figs. 10 and 11 is applied to the ski very much like the form above described, except that the strips are applied from the rear of the ski toward the tip. This form has the advantage that the ends of the strips overlying the tongues 38 are forward of the adjoining ends, so that any misalignment or defect which may cause the surface of the overlying end to protrude slightly above the surface of the adjoining section will not interfere with the smooth running ofthe ski, since as the ski'slides on the snow, a shingle effect is obtained, this effect being similar to the shingle effect of water sliding down a shingled roof of a house. This effect is-indicated insomewhat vexaggerated degree at C in Fig. 11.

The principal )difference between the form shown in Figs. 1I) and 11 and the form first described'is the fact that the screws are not located so-close to the endsy in Figs. 10 and 11 and in Figs. l-8. In Figs. 1-8 the screws are located close to-the ends `for the purpose ofY positively holding down these overlying ends and preventing any raising of the ends which might catchV on the snowV and slow up the ski. This precaution is not necessary in Figs. 10 and 11 in view of the shingle effect above described. In each case itwill be seen that the narrow part of the keyhole slots faces forward so that the drag of the snow -on the ski edge will always tend to keep the screws tightly engagedin the narrow ends of the keyhole slots.

The construction above described has many advantages which will be obvious to skiers and ski repair men. The outer or running strip of the composite ski edge` having holes smaller in diameter than they screw heads actually forces the screws in during skiing instead of allowing them to loosen and fall out. The beveled edges of the holes on the outer strips'insures the removal of burrs onthe'outer surface-of the ski and helps retain the filled-in plastic wood or hard wax. The beveledkeyhole slots effect -a fastening to the screws and yet permit play for contraction-and expansion of the ski edge. The holes between the keyhole slots lighten theski edge and make it more flexible.

The drilling and centering of the screw holes may be'accomplished by using the edge itself as a templet before the screws are inserted, and speedy attaching is obtained by assembling the screws and the edges first before attaching to the ski. The holes in the outer strips permit vaccess of the screw driver to the screws for easy assembly; The tongues and notches assist inaligning up the adjoining sections and hold them in firm interlocked relation. The hollow ground construction of the side edges not only insures smooth edges, but also sharpens the corners, decreasing side slipping.

Referring now particularly to Figs. 12 to 17, inelusive, there is-illustrated still another embodiment `of my invention. In-this embodiment, the base strip-is provided withT-slots and the `top or outer strip is provided with lugs or the like for detachably connecting the top or outer strip to the base strip.

The wooden ski |36 is provided with channeled edges i2, as illustrated, and a metallic base strip l|| is inserted in each edge and is secured to the ski by screws |62 extending through suitably arranged, countersunk elongate openings |03 in the base strip lill. Each base strip thereby is securely and more or less permanently secured to the ski.

The elongate openings |03 are beveled along their longitudinal edges to fit the screw heads as shown but are sufficiently long to provide room for two or more screws. This is of advantage in requiring less accuracy in drilling theV holes in the wooden ski iil to take the screws |02 and also provides room to put a second screw in the same hole if for any reason it is desired to do so, as for example, if the rst screw breaks. v

The base strip lill is provided with a plurality of spaced, keyhole slots |55 each of which is provided with an enlarged portion |95 and a narrow portion ii. The side walls of the narrow portion |01 are divergent as illustrated particularly in Fig. 14. The base strip may be provided, if desired, with a plurality of openings |04 for the purpose of reducing the weight of the strip and rendering it more flexible.

A metallic top or outer strip lill is provided and has a plurality of lugs projecting therefrom at locations so disposed as to register with the enlarged portions of the keyhole slots N5 of the base strip ii when the two strips are superposed. The lugs may be formed in any suitable manner and may be constituted by rivets, or

screws, or may be formed as integral portions of the top or outer strip l. The lugs l are so positioned and are of such size that they enter the enlarged portions IB of the keyhole slots |05 and upon movement of the strip HB toward the rear of the ski longitudinally of the strip IIJ I, the lugs |I| enter and are firmly gripped by the narrow portions |01 respectively of the slots. Thus the top or outer strip lil is locked securely in position.

It will be seen that the extension |22 provides with the opposite edge of the paneled portion |28 of the ski a seat for a top or outer strip |24 which may be formed from non-metallic material such as an artificial resin, and preferably a fabric-reinforced artificial resin. The top or outer strip |24 may be provided with a plurality of lugs |25 which may be constituted by screws threaded into the strip |2i. The lugs |25 then function in a manner generally analogous to the lugs above described for the purpose of securing the top or outer strip |24 to the base strip |2|.

The inventive concept illustrated by Figs. l2 to 15, inclusive, may be applied to a center strip or insert as illustrated particularly in Fig. 17. The wooden ski |30 is provided with a central channel |32 in which is disposed a base strip ISI; constructed generally like the base strip `lill vabove described. The top or outer strip |35 is secured to the base strip |3| by means of lugs |34 which are inserted in and cooperate with keyholes |33 in the base strip |3|.. As illustrated in Fig. 17, the base strip |3| or top or outer strip E35 may be of somewhat larger and heavier construction than the strips lill and H9 respectively which are employed at the side edges of the ski. However, it will be understood that the general construction and function of the strips |3| and |35 are in general similar to the construction and function of the strips Il and Aabove-described.

It is obvious, furthermore, that other adaptations of the means herein disclosed forattaching the protective edge strips may be also employed to attach the intermediate strips.

While certain novel features of the invention have been disclosed and are pointed out in the annexed claims, it will be understood that various omissions, substitutions and changes may be made by those skilled in the art without departing from the spirit of the invention.

`What is claimed is:

1. In a ski, a body member, a reenforcing strip comprising a plurality of sections of laminated metal, each section having a base strip with means for attaching to the ski body and an outer strip for running on the snow, each inner strip having at one end a notch and at the other end a tongue, the adjoining strips substantially abutting with the ends on the outer strips in engagement and the tongues on the inner strips seated in the notches of the adjoining inner strips, said tongues projecting from the ends of their respective sections and seated under the ends of the adjoining sections.

2. A ski edge comprising an inner strip and an outer strip secured together, said inner strip having spaced openings, screws in said openings, said openings having a dimension smaller than the screw heads whereby the screws may attach said ski edge to a ski body, said outer strip having holes in line with said screws, the minimum diameter of said holes being less than the maximum diameter of said screw heads, whereby said screws and ski edge may be pre-assembled before attaching to a ski and said outer strip holes permit access of a screw driver to drive the screws into the ski body.

3. A ski edge comprising an inner strip and an outer strip secured together, said inner strip having spaced beveled openings, bevel headed screws in said openings, said openings having a dimension smaller than the screw heads whereby the beveled heads of the screws may engage the beveled surfaces on said openings and the tops of said screws are substantially iiush with the outer surface of said inner strip, said outer strip having holes in line with said screws, the minimum diameter of said holes being less than the maximum diameter of said screw heads, whereby said screws and ski edge may be pre-assembled before attaching to a ski and said outer-strip holes permit access of a Screw driver to drive the screws into the ski.

4. A ski edge comprising inner and outer strips secured together in laminated relationship, said inner strip having beveled openings to receive bevel headed attaching screws which go into the body of the ski, said inner strip having openings between the attaching openings to lighten the construction and to improve the flexibility, said outer strip being welded to said inner strip and engaging over the heads of said screws, said strips being divided into relatively short sections extending, end to end, lengthwise of the ski.

`5. A ski edge strip vcomprising an inner strip vand 'an outer strip welded together, said inner strip having spaced keyhole slots, the narrow portions of said keyhole slots having beveled sides, bevel headed screws seated in the narrow portions of said keyhole slots with their heads against said outer strip, said outer strip having holes in line with said screws, the minimum diameter of said holes being less than the maximum diameter of said screw heads, said outer strip holes having bevel edges to retain ller material, said inner strip having holes intermediate said keyhole slots to increase the flexibility of the composite strip, whereby said screws may be pre-assembled in said keyhole slots and said strips and screws may be appliedto the ski as a unit.

6. A ski edge comprising an inner strip and an outer strip welded together, said inner strip having spaced keyhole slots, the narrow portions of said keyhole slots having beveled sides, bevel headed screws seated in the narrow portions of said keyhole slots with the heads against said outer strip, said outer strip having holes in line with-said screws, the minimum diameter of said holes being less than the maximum diameter oi said screw heads, whereby said screws may be preassembled in said keyhole slots and said strips and screws may be applied to the ski as a unit.

7. A ski edge comprising an inner strip and an outer strip secured together, said inner strip having spaced keyhole slots, screws seated in the narrow portions of said keyhole slots with their heads against said outer strip, said outer strip having holes in line with said screws, the minimum diameter of said holes being less than the maximum diameter of said screw heads, whereby said screws may be pre-assembled in said keyhole slots and said stripsand screws may be applied to the ski as a unit.