US2191641A - Device for maintaining the bend of the tips of ski - Google Patents

Description

L. BURCH 2,191,641

DEVICE FOR MAINTAINING THE BEND OF THE TIPS OF SKI Fgb. 27, 1940.

Filed Dec. 13, 1938 KB uIO/l o m/enfor' Patented Feb. 27, 1940' UNITED stares DEVICE FOR MAINTAINING THE BEND OF THE TIPS F SKI Leo Burch, Zurich, Switzerland I Application December 13, 1938, Serial No. 245,511 In Switzerland December 15, 1937 6 Claims, (01. 280-4137) f This invention-relates to devices for preventing the up-turned ends or tips of ski from warping when not in use and is of the kind adapted to be fixed between a pair of ski and to hold the ups turned ends or tips in a stretched or tensioned position.

In the accompanying drawing, various'embodiments ofthe invention are illustrated by way of example.

In the drawing Figure 1 is a view of one embodiment in the operative position, the inoperative position being indicated by broken lines, parts of the ski, as far as they assist in the explanation, being also shown;

Figure 2 is a part side view and apart section on line a,b in Figure 1;

Figure 3 is a plan view'of the upper part of the device parts being broken away and Figure '4 is a horizontal section on line c-d in Figure 1. v

The ski tip tensioning device according to Figures 1 to 4 comprises two sheet metal clamps l which are adapted to be slipped over the edges of the skibehind their tips and intended to hold 5 together the ski with their running surfaces adjacent. The section of the clamps is U- haped and widens towards the top, from which resilient wire arms 2 extend to tensioning means 3 for stretching the tips of the-ski. The tensioning means is designed as toggle levers. Each wire is bent over at an acute angle, and held at the bend by being clamped, by means of a flap 4 partly stamped out of the middle portion of the clamp I, between such flap and the remainder of the middle portion. The two free ends of the wires and those of the wire attached to the opposite clamp in the same manner embrace, in pairs, the

ends of pins 6 provided on the tensioning means and carrying friction rollers 5. The tensioning means consists of two lever parts 8, 9 of a U- shaped section, which can be moved in the manner of a toggle lever round a linked bolt '1, each of these parts carrying one of the rollers 5 mentioned above. The lever parts having this section enhance the rigidity of the structure of the device, and diminish the tendency of the tensioning means to bend laterally.

In order to stretch the tips of a pair of ski, the untensioned device is slipped in from above between the tips of the ski (see the broken line in Figure l) and the sheet metal clamps are placed against the transversal pressure of the resilient wires 2, over the edges of the ski on both sides, and in view of the spring tension the ski bear tightly and evenly against the middle portion of the clamps. Thereupon, the lever parts 8, 9 of the tensioning means are moved, against the lateral pressure of the resilient wires 2, in the direction of the arrow a: into the tensioned position. In doing this, the flat sides of the ski are 5 forced against the flanges of the. sheet metal clamps, and the tip portion of each ski is stretched evenly and by a uniform pressure. Any displacement or turning of the ski in the clamps is impossible in View of the transversal and lateral 10 pressures. The adjoining rollers 5 prevent damage to the running surfaces even in the case of a very strong tensioning pressure. In order to improve the guiding and to increase the clamping pressure on the ski, the clamps i may, within 15 practicable limits, be made as long as desired.

In order to obtain ,a softer seating for the ski on the flanges of the sheet metal clamps, each flange may be provided with a padding layer ll] at the contacting surfaces (see'Figure 4) 20 In order to obtain a longer tensioning path for a single tensioning means, a plurality of joining points for the lever parts may be provided. For example, a number of holes may be provided in the lever part B for inserting a screw where de- 25 sired, the two lever parts being interconnecting in an easily detachable manner by means of this screw and of a winged nut.

The resilient connecting parts provided between the clamps and the tensioning means may also be 3 replaced by other elastic means such as a flexible shaft or the like.

What I claim is:

1. A device for maintaining the bend in the tips of a pair of ski having their running sur- 5 faces adjacent, comprising means for stretching apart one from another the tips of such ski including comprising two clamps the cross-section of which is U-shaped and widens from one end of the clamp to the other in such a manner that 40 the flanges of the clamps adapted to grasp two adjacent edges of the ski follow the tips of the ski along a part of the bent portions thereof.

2. A device for maintaining the bend of the tips of a pair of ski having their running faces 45 adjacent, comprising a pair of rigid clamps of U-shaped cross-section which widens from one end to the other, each of said clamps being adapted to embrace the edges of said two ski on one side thereof and to follow the bend of 5 said tips, a resilient member on each of said clamps and stretching means adapted to act upon said resilient members in spreading out the tips of the ski.

3. A device for maintaining the bend of the 55 tips of a pair of ski having their running faces adjacent, comprising a pair of clamps adapted each to grasp adjacent edges of the ski, a V- shaped spring member on each of said clamps extending in the direction of the tips of ski, a pin connecting said two spring members on the outer ends thereof and said members being adapted to press the clamps towards the edges of the ski when mounted thereon.

4. A device for maintaining the bend of the tips of a pair of ski having their running surfaces adjacent, comprising a pair of clamps of U-shaped cross-section, the flanges of each of these clamps being adapted to grasp adjacent edges of said ski and to follow them along a portion of their bend, the distance between said flanges of each of the clamps increasing in the direction toward the tips of the ski, a V-shaped spring-member on each of said clamps having its legs extending in the direction of the tips of the ski to be stretched, and stretching means connecting the outer ends of said legs one with another and adapted to press against the tips of the ski.

5. A device for maintaining the bend of the tips of a pair of ski having their running surfaces adjacent, comprising a pair of clamps of U-shaped cross-section Widening in the direction towards the tips of the ski, the flanges of these clamps being adapted to engage adjacent edges of the ski, an eye formed on the middle portion of each of said clamps, a V-shaped spring-member mounted in said eye and having its legs extending in the direction of the flanges of said clamps, a pin connecting the outer end of each of said legs with the corresponding end of the other spring-member, a roller loosely mounted on each of these two pins and a stretching device connecting said two pins one with another and adapted to press said rollers towards the tips of the ski.

6. A device for maintaining the bend of the tips of a pair of ski having their running surfaces adjacent, comprising a pair of clamps of U -shaped section the flanges of which are adapted to grasp two adjacent edges of ski and follow the tips of the ski along a portion of their bend, a padding on the inner side of the flanges of each of said clamps," a spring member mounted on each of said clamps and connected with that on the other memberso as to press the clamp towards the edges of the ski when applied there-- on, and stretching means connected with said spring members in such a manner as to press the tips of the ski away from each other.

LEO BURCH.

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