US2042543A - Ski tie - Google Patents

Description

June 2, 1936- J. MAUS SKI TIE Filed Feb. 16, 1954 2 Sheets-Sheet 1 June 2, 1936. Aus 2,042,543

SKI TIE Filed Feb. 16, 1934 2 Sheets-Sheet 2 the fixing screws Patented June 2, 1936 UNITED STATES SKI TIE Johann Maus, Stuttgart, Germany Application February 16, 1934, Serial No. 711,574 In Germany September 28, 1933- 9 Claims. (Cl. 208184) This invention relates to'a ski tie with adjustable toe irons. For ensuring absolutelyreliable fixation in any desired adjustment, the toe irons are provided on the two curved ends with teeth which engage in similar teeth on two straight'transverse bars arranged one opposite each end of the irons. Such ties are known in which these toothed transverse bars are immovably fixed on a base plate. Theirmain objection is therefore that, when adjusting the toeirons, must be unscrewed sufliciently toe irons to be raised above the transverse bars in order to be brought into a fresh position. They arethen again fixed'by tightening the fixing screws.

The novelty of the invention consists in that the two toothed bars; situated under-a cover plate, are-brought into and out'of engagement with the toothed'ends of'the toe'irons-bylongitudinal displacement. stance the toe irons arerheld: immovable and in the second instance they are liberated for" adjustment;

All formsof constructionmay be with of without-baseplate.

In the first instan-ce-the-toe irons-are made in one piecewith: the base plate in such a man-- ner thata holding means fixed on' the' latter and engaging the. toe irons covers'these irons far to enable the I and holds them in a recess; By means-of transverse slots a limited lateral shifting of-th'e toe irons'is possible," besides'a turning movement, whereas'the longitudinal shifting is prevented. Thus, thefollowing further advantages are derived:-:

Thenbase plate and the'twotoeirons form together an inseparable whole, so that the connection is maintained even when-the toothed bars are disengaged from the teeth on the end of the toe'irons by loosening the fixing screws. The readjustment of the toe irons for another'size of shoe-can then be effected by slightly-shifting andturning; After retightening' the fixing screws, the tie is again ready for use.- These ties are also. easier to fix on the skis because the base plate serves as template for the holes for the fix-. ing, screws in the ski board.

Five. embodiments. .without, basev plate and the arrangementof .the fixing screws when: employing a. baseplate.are illustrated byway of example inthe accompanying drawings, in .which:-

Fig.1 shows in top planviewa form-tof comstructionywithi bars 'which i are rigidly connected with1-the coverplate; 1

Thus; in the first in-- Fig.2 is a long-itudinalvertical section of Fig. 1 with the toe irons loosened.

Fig. 3 is a similar view with the toe irons fixed.

Fig. 4 shows in-longitudinal vertical section a form of construction with bars which are 'separate from the cover plateand shiftedby the conical heads of the fixing screws.

Fig. 5 is a top'plan view of Fig.4 with part of the coverplate removed.

Fig. 6 is a longitudinal, vertical sectionof a similar form of construction to that shown in Figs. 4 and 5, but in which the shifting of the bars is effected by inclined surfaces of the cover plate pressing against similar surfacesonthe bars. I

Fig. '7 shows in longitudinal, vertical. section an arrangement in which the shifting of the bars is effected by cones fixed on the underside of the cover plate.

Fig; 8 isa side elevation-of an-arrangement with lateral longitudinal screws connecting the two bars.

Fig; 9 is a top plan-view ofFig. 8. r

Fig. 10 shows in longitudinal section on line X'X of Fig. 11 a holding device with'base plate.

Fig. 11 is a top plan view of Fig; 12 without cover plate. I

Fig. 12 is a part'sectionon a larger scale through the holding device taken on line XX of Fig. 11.

. All five forms of construction possess the com mon featurethat the adjustment of the toe irons is effected by 'hand after the fixing screws of the tie have been loosened: These screws-need only be'loosened until the teeth of the bars and toe irons are disengaged. I

The engagement, and therefore the -fixation, of the'toe irons is effected in the constructions shown in Figs. 1 to 7 by tightening thefix-ing screws. In the construction shown in Figs. 8 and 9 the: disengagement and engagement is eifected by actuating-the longitudinal screws also'after loosening the fixing screws: 'I'hetoeirons are secured in their adjusted position by retightening the fixing screws.

The-bearing arms of thetoe irons z areprovided in known manner with teeth v on their two convex end edges. d designates the cover p1ate,-l are-the two toothed transverse bars, and h the fixing screws near the'ends of the'cover'pla'te d.

In the form of construction shown in Figs. 1 m3 bars Z, provided'with' teeth on their inner slightly bevelled under-cut edge are arranged, one on eachend-of-the cover plate cl and made iri'on'e piece with this plate which bears on the toe irons 2.

When the screws h are tightened, the bars I bear against the ski board and at the same time swing slightly inwards around their bent edge. Thus, their toothed inner edges are pressed horizontally against the toothed curved edges of the toe irons z, engage in the teeth of the bearing arms of the irons and thus cause an absolutely reliable fixation of the toe irons in the width previously adjusted. To enable the bars to move inwards during the tightening of the fixing screws, the holes for the screws h are either made sufficiently large or preferably in the form of slots.

For adjusting the tie for another size of shoe, it is only necessary to loosen the screws h until the cover plate with bars can spring out so far that the teeth are disengaged. When the toe irons have been shifted into their new position, the reengagement of the teeth and consequently the fixation of the toe irons, is effected by tightening the fixing screws.

The bars I may be also connected with the cover plate by riveting, welding or in some other suitable manner.

In the forms of construction illustrated in Figs. 4 to 9, the bars are not connected with the cover plate, but lie loosely thereunder.

In the form of construction. according to Figs. 4 and 5 the conical heads of the fixing screws 71. engage in likewise conical recesses 70 in the bars Z. To enable these bars to be longitudinally shifted, the holes for the screws h are formed as longitudinal slots s.

The readjustment of the toe irons for another width position is effected in the following manner: After the loosening of the fixing screw h for adjusting the toe irons z, the two bars I are shifted away from the irons 2 by means of the slots 3 until the teeth 1) are disengaged. When the fixing screws h are tightened, their conical heads bear against the corresponding inner surfaces of the conical holes 70 and shift the bars 1 towards the toe irons until their teeth engage those of the toe irons and tightly clamp the same. At the same time the cover plate d is tightly pressed by the screw heads. v

In the form of construction shown in Fig. 6 the outer longitudinal edges of the bars I have a bevelled surface against which a correspondingly inclined surface of the cover plate d is pressed. When the fixing screws 71. are tightened, the two bars I are pressed by these surfaces against the toe irons 2. In order to prevent lateral displacement of the bars Z, pins are provided on the under side of the cover plate d and engage in longitudinal slots in the bars I.

In the construction shown in Fig. I any desired number of conicalpins c are provided on the inner side of the cover plate d. These pins engage in conical recesses in the bars Z so that during the tightening of the fixing screws h the bars are pressed against the ends of the toe irons 2.

In the construction illustrated in Figs. 8 and 9 eyes a are provided on the bars Z. Bolts 1) provided at one end with a head for turning are rotatably mounted in the eyes of one of the bars e'and provided with a screw thread at the other end to engage in screw threads in the eyes on the other bar. The clamping and loosening of the toe irons is effected in known manner by turning'the bolts 1). The bolts are prevented from shifting in longitudinal direction by a collar 1 on the head end bearing against the end of the coordinate eye. The fixing screws h in this form of construction are preferably provided on the outer sides of the bars 1. If the teeth are bevelled in known manner, they rise on one another when pressed together. The resultant component of the force produced by the initial sliding and directed perpendicularly to the surface of the ski then acts as a pressure force pressing the bearing surface of the arms of the toe irons tightly onto their support through the intermediary of the cover plate.

In the form of construction shown in Figs. 10 to 12, g is the base plate which has upwardly acting resilient tongues u under each of the toe irons. p is the holding device proper which is bored for accommodating the middle fixing screws m. It is fixed on base plate by riveting or the like. Its upper edge is enlarged to form a disc, which engages in a recess t in the toe iron .2 and is flush with e the upper surface thereof, so that it enables an easy transverse shifting and swinging movement of the toe iron. Thus, the toe irons are prevented from dropping off the base plate when the cover plate is removed. Moreover, the toe irons cannot slip under the toothed bars owing to the fact that longitudinal displacement of the toe irons is prevented. The tongues it also exert a slight braking pressure on the toe irons. For the transverse shifting of the toe irons their recess t has a transverse slot 10 which at the same time limits the lateral displacement of the toe irons.

The tie is fitted on the ski by nailing the base plate with the toe irons at the place marked by means of the two holes 1/ and which can be checked by the middle hole q' and the intersecting lines i. The holes for the fixing screws in and m. are then bored. The final fixing of the tie, after the cover plate 6 has been placed in position, is effected by screwing the fixing screws into these holes.

The adjustment of the toe irons for another size of shoe is effected by loosening the fixing screws h and m, so that the toe irons are disengaged from the toothed bars in raising the cover plate (1. The toe irons are then brought into the desired new position, whereupon they are again fixed, and the tie is again made ready for useby retightening the fixing screws.

I claim:-

1. A ski binding, comprising in combination adjustable toe irons each having a horizontal portion curved at its front and rear ends and provided with teeth on these curved. ends, a cover. plate shiftable on said toe iron in longitudinal direction, straight holding bars under said cover bar, teeth on the inner edge of each of said holding bars adapted to engage with the teeth on the curved ends of the horizontal portions of said toe irons, said holding bars being shiftable in the longitudinal direction of the ski to lock and release said toe irons, and screw bolts in said cover plate adapted to press down on to the ski board said toothed bars and toe irons.

2. A ski tie comprising in combination toe irons, a base plate, holding devices one for each of said toe irons fixed in said base plate, a fixing screw connecting each of said holding devices to the ski, a disc-like edgeformed on the upper end of said. holding device, said toe irons having each a recess accommodating said disc so that it lies flush with the upper surface of said toe iron, and a transverse slot extending from said recess and surrounding said fixing screw to allow limited lateral displacement and the turning of said toe irons when said screws are loosened.

3. A ski tie as specified in claim 1, comprising in combination with the toe irons, a base plate under said toe irons, and tongues between said toe irons and said base plate adapted to exert a resilient braking effect in upward direction on said toe irons.

4. A ski binding as specified in claim 1, comprising a cover plate having ends bent down and inwardly inclined adapted to serve as holding bars.

5. A ski binding as specified in claim 1, comprising in combination with the cover plate, fixation screws and toothed holding bars, a head on each holding screw bevelled on the lower surface, each holding bar having longitudinal slots one for each fixation screw with upper edges bevelled corresponding to the bevel of the head of said fixation screw said screw head being adapted to cooperate with the bevelled upper edges of said slots to shift said bar to bring its teeth into engagement with the teeth on the toe irons.

6. A ski binding as specified in claim 1, comprising in combination with the toe irons having curved hooked end portions, the cover plate having roof-shaped bevels on the edges, the toothed holding bars under said cover plate having an edge bevelled according to the corresponding bevel of said cover plate and longitudinal slots, the roof shaped bevelled edges of said cover plate cooperating with the bevelled edges of said holding bars to shift said bars and bring their teeth into engagement with the teeth of said toe irons and pins projecting from the lower side of said cover plate adapted to engage with said longitudinal slots of said holding bars to prevent said holding bars from shifting in transverse direction..

7. A ski binding as specified in claim 1, comprising in combination with the toe irons having toothed curved end portions, the cover plate and the toothed holding bars under said cover plate having conical recesses in the upper surface, conical pins projecting from the lower side of said cover plate and engaging said recesses to shift said bars to bring their teeth into engagement with the teeth of said irons and tightly fitting in said conical recesses to securely hold said irons against displacement.

8. A ski binding as specified in claim 1, comprising in combination with the toe irons having toothed curved end portions, the cover plate and the toothed holding bars under said cover plate, an eye in each end face of each holding bar, and screw bolts screwed one into the eyes of the corresponding ends of said holding bar for engaging the teeth of said holding bars with the teeth of the corresponding curved portions of said toe lIOIlS.

9. A ski binding as specified in claim 1, comprising in combination with the toe irons each having a bore with widened upper end and with a longitudinal slot, a base plate fixed on the ski board, upwardly acting resilient tongues on said base plate, one for each end of each toe iron, and

holding screws in said base plate one for each toe iron extending through the bore of the corresponding toe iron, and a disc on the upper end of each holding screw fitting in the widened upper end of the bore in the corresponding toe iron. JOHANN MAUS.

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