DE1578810A1 - Ski safety binding - Google Patents

Description

8 MUNICH 90

DR.ING. B ". WÜBSTHOFI" SCHWEIÖERSTHASSE 2 DIPI * ING. G. PtTLS .-, '.' "Τεμϊιγο» 2206 Sl DRXt-MOHMAM "wobaidiwd" »« · PATENT LAWYERS ■■ "'.- ■ pkoteotpatbnt μ **"? ¹ !? * _ - _

1A-32 290

.Description
to the patent application

Dip 1. -Ing. Robert LIISSER, Munich

concerning

-Schi safety binding

Addendum to patent 1 204-

In the main patent, a ski safety binding is described in which the sole tip of the ski boot is supported on a fixed abutment attached to the ski and a pressure member, which extends generally from rear top to front down and is under the action of a spring, presses on the heel at the rear , which is articulated on a handlebar lever pivotably mounted on the ski in a vertical longitudinal plane in the same plane and cooperates with a member that resiliently inhibits its free swinging out, which between-the. Anlenk- pwakt of the pressure member and. whose support point attacked the heel of the boot. ■

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BADORSeiNÄL

The object of the invention is the ski safety binding to further develop according to the main patent in such a way that the pressure member is self-sifcätig in one on the paragraph of the Ski boot provided fitting snaps into place, "if one the ski boot in a position with the tip of its sole rests against the abutment, pushes down on the ski. According to the invention, this object is thereby achieved

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^w solved that designed as a helical tension spring and attached to the handlebar lever resilient member is a trained on the base plate of the binding acting pushes the pressure member resiliently forward.

The invention is illustrated in the following with the aid of a schematic 'Drawings explained in more detail using an exemplary embodiment. Show it:

Pig, FIG. 1 shows a side view of a ski safety binding according to the invention at the beginning of buckling up;

Pig, 2 one of the B ¹ Ig. 1 corresponding plan view;

3 shows a view from _{FIG. 6 corresponding to FIG}

Figure ₀ 4 a side view of the same Sicherheit.sbin- in Abfahrfes division "

0/0459 - _ ORIGINAL I.

In the illustrated embodiment of a ski safety binding with the features of the invention, a guide plate 3 is attached to the ski 1 by means of screws 2. A base plate k is held in the guide plate 3 so as to be displaceable in the longitudinal direction of the ski 1. A reinforcement plate .5 is soldered to the top of the base plate k; by these and the base plate to a vertical Gewindebohrunr *, sitting in a set screw 6 extends * The tip of the set screw 6 engages in a tapered by several recesses J in the guiding plate 3, a hold to the base plate H in a position corresponding to the Corresponds to the size of the ski boot 6 to be held on by the safety binding.

An upwardly projecting bracket 12 is attached to the rear end of the base plate h. At the upper end of the console 12, a handlebar lever I ^ is pivotably articulated in the vertical longitudinal plane of the ski 1 by means of a hinge pin 13. The handlebar lever 1 ^ · consists of two identical stamped parts made of strong sheet metal, which extend parallel to each other at a distance substantially forward and encompass the flattened upper end of the console 12 on both sides.

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The handlebar lever I ^ has a downward Bulge up; 'at the deepest point of this bulge is a selector lever 16 by means of a hinge pin 15, which engages between the two parts of the handlebar 14, pivotably mounted.

The selector lever 16 has at its upper end a claw 17 extending in the transverse direction in which the middle part of a U-shaped bent down bracket 18 is seated. On the two ends of the bracket 18 a threaded piece 19 is screwed on in each case. Each Threaded piece 19 carries a helical tension spring 20, namely by means of a thread which is provided on the outer circumference of the threaded piece and is adapted to the spring pitch, onto which the upper turns of the spring are screwed on with radial preload. The Fed.ern 20 point at their lower At the end of each end there is an eyelet 21, which is bent upwards into one formed on the reinforcement plate 5 & s Hook 22 is attached. The selector lever 16 can be combined with the bracket 18 and the springs 20 from the in Flg. 1 into the rear position shown in FIG Pivot the apparent front position. In the rear position of the selector lever 16 is the plane in which the longitudinal axes of the springs 20 and thus also the lines of action of the tensile forces of these springs "are included in the

009 850/0459

Distance behind the hinge pin 15; in the front Position of the selector lever, on the other hand, lies in front of this hinge pin.

At the front end of the link lever J1A, a pressure member Zk is pivotably articulated in the vertical longitudinal plane of the ski 1 by means of a hollow hinge pin 23. The pressure member Zk extends forward and downward from the hinge pin and has a hook 25 at its lower end. A helical tension spring 26 acts on the pressure member Zk between the hinge pin 23 and the hook 25. The rear end of the spring 26 is in an eyelet 2? hooked, which is articulated near the hinge pin 15 on the handlebar lever Ik .

The spring 26 is according to the invention such with an axial

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Distance between their individual Viindungen wound so that it can also act as a compression spring and the binding at the front upwardly bent end is based on in Fig. 1 and Fig k. Imaged positions 28 of the reinforcing plate 5 from. The length of the spring 26 is dimensioned such that the hook 25 of the pressure member Zk has the tendency to assume the position shown in FIG. 1 when the ski boot is unbuckled.

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The front end of the base plate h is bent upwards and designed as a fork with two prongs 29 that is open at the top. With the angular graduation of the control arm 14 that can be seen in the drawings, the pressure member 24 protrudes obliquely from the top back to the front bottom into the intermediate space between the two prongs. According to Pig. h , in the downhill position of the binding, a fitting 30 attached to the rear of the heel of the ski boot 8 engages between the two prongs 29. The fitting has approximately the shape of a ladle and interacts with the hook 25 of the pressure member 2h .

The mode of action of the ski safety binding according to the invention is as follows; For buckling up the ski boot S, the bracket 18 is brought into its rear position shown in FIG. 1. If you with the ski boot 8, the tip of which rests against the front abutment, not shown, of the binding and whose heel takes the position shown in Fig. 1 at the beginning of buckling, then the pressure member 2h steps down from the heel fitting against the effect of the Spring 26 pushed backwards. As soon as the ski boot 8 has reached a position in which its heel touches the ski 1, the pressure member 2h jumps under the effect; the spring 26 again forward until the

009850/0459 _0R , _{G! [4ÄL} ^ _ti

Hook 25 engages in the heel fitting 30. In order to be able to ski down, the skier now only needs to pivot the bracket Ic with the two springs 20 from the rear position (FIG. 1) into the front position (FIG. 1 k) ; in the front position is the heel of the ski boot 8 by the force of. Springs 20, which are transmitted via the selector lever 16 and the handlebar lever IA to the pressure member 2 ^ and from this to the heel fitting 30, held on the ski 1.

If, in the event of a head-on fall, the upward force transmitted by the heel fitting 30 to the pressure member -2 ^ exceeds a certain limit, which corresponds to a still permissible load on the skier's leg, the selector lever 16 with the bracket .18- and the two springs 20 automatically in its rear position {Fig. 1) pivoted, in e'er the force of the two springs 20 only have a much lower moment in relation to the hinge pin 13 of the steering lever lh and thus can only generate a relatively narrow force of the pressure member Zk directed obliquely downwards that is no longer dangerous for the skier's leg. In the rear position of the rocker arm 16, the

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Swing the shoulder of the ski boot 8 against the relatively low resistance of the spring 26 upwards until the pressure member 2k is in an essentially horizontal position. For cross-country skiing or ascent with climbing skins, the selector lever 16 is therefore brought into its rear position from the start. If the horizontal position of the pressure member 24 is exceeded when the skier falls, the hook 25 jumps out of the heel fitting 30 and thus releases the ski boot 8 completely.

Claim

5648

00985 0/0459

Claims (1)

Ski safety binding in which the. Sole tip of the ski boot on one attached to the ski ■ Fixed. Abutment is supported and at the rear on the, paragraph a generally from the rear top to the front pushes down extending, standing under the action of a spring pressure member, which is on a on the ski in a vertical longitudinal plane pivotably mounted handlebar lever is pivotably articulated in the same plane and is resilient with a free swing inhibitory G-Iied cooperates between the The articulation point of the pressure member and its support point engages the heel of the boot, according to patent 1 204 984, thereby g e ken η ζ e i c h η e t that the as Tension spring formed and on the handlebar lever (14) attached resilient member, (26) is assigned a stop (28) formed on the base plate (4) of the binding, on which stop is when the handlebar lever is below the rear end of the coil spring in the way supports that it acts as a compression spring, the pressure member (24) springy, pushes forward * Ο «" ¹ 9 8 50/0 M 5 9