DE2041239A1 - Safety bindings - Google Patents

Description

20A1239

PATENT ADVOCATE DR GERHARD SCHAEFER DI PLO M PH YSIKER

8023 Munich - Pullach Seitnerstraße 13 Telephone 7 93 09 01

P 269

Kurt H i 1 d e b r a η d A-5640 Bad Oastein, Kötschachtal

Safety ski bindings

The invention relates to a safety ski binding for the tip of the shoe and / or the heel with a housing firmly connected to the ski and a clamping part which can be moved against the force of an elastic body and which has a preferably approximately vertically arranged clamping part and an approximately horizontally extending clamping jaw.

Known Safety ski bindings of this type have the disadvantage

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that the release force when turning the clamping jaw only determined by the elasticity of the elastic body and is therefore not adjustable. Proper functioning A safety ski binding is only guaranteed if the release force is individually applied to the Height and weight of the skier can be adjusted. The adjustability is therefore an indispensable emergency P Maneuverability for the correct functioning of a safety ski binding.

The invention is based on the object of addressing the disadvantages of known safety ski bindings of the type described above overcome and create a safety ski binding that is easy to set up and safe to use whose release force is precisely adjustable. This object is achieved in that the housing and / or the clamping part Has adjusting means by which the elastic body can be biased.

According to one embodiment of the invention, the elastic body can be pressed against the clamping part by means of at least one adjusting screw mounted in the housing. The elastic body can consist of a prismatic block of elastic material, preferably of Ousel. He can by means of

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one that is preferably vertical and transversely to the axis of the ski slope Pressure plate can be pressed against the clamping part.

According to a further embodiment of the invention, the elastic body can have an approximately triangular or trapezoidal cross-section transversely to the longitudinal axis of the ski. It is advantageously pivotable about its upper edge by means of an approximately perpendicular to the ski surface and an adjusting screw
Pressure plate can be pressed against the clamping part. The printing plate then advantageously has a dem at the front edge
elastic body adapted curvature. The clamping part
can have a correspondingly formed bend, so that the elastic body is firmly clamped between the pressure plate and the clamping part and cannot give way even when pretensioned.

The elasticity of the elastic body depends essentially on its material. In addition, however, also from its external shape. It can be changed by making holes and / or notches. Instead of or together with rubber-like material , suitably trained spiral or leaf springs can also be used.

In order to be able to adjust a defined and reproducible preload , there is at least one with one in the housing

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Scaling provided slot attached. Through this slot the hand of the elastic body or observe the position of the pressure plate. The horizontal Clamping preferably by means of a screw thread be vertically adjustable. To adapt ai; vertichi'ide.oe Shoe sizes it is advantageous to have at least one binding :? to make fc body displaceable along the longitudinal axis of the ski.

It is particularly useful to adapt the clamping jaw to the contour of the ski boot tip or the ski boot heel. In order to ensure a safe sliding back of the ski boot into the starting position, provided that the boot is deflected but the triggering force is not exceeded, a particularly important and advantageous development of the invention provides a center in the clamping jaws on the side facing the boot preferably to provide a triangular recess with which a correspondingly designed, preferably triangular projection, preferably a screw or a pin with a triangular head, attached to the ski boot, engages. This ensures safe guidance even with a weak setting.

According to an advantageous embodiment of the invention

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provided on a fixed vertical part of the Binding body, in particular on the one facing the ski boot vertical surface of the housing, at least one point-shaped projection, preferably an adjusting screw, or a bead-shaped one running transversely to the ski axis To arrange projection. This ensures that greater pre-tensioning or relieving of the elastic body does not result in any displacement of the ski boot brings, whereby under certain circumstances a stronger pretensioning and relieving of the one binding part by transferring it to the the other part of the binding would be partially ineffective.

The advantage of the safety ski binding according to the invention is to be seen in the fact that this is extremely simple and inexpensive to set up and easily adjustable, that it is reliable works and can be easily adapted to any shoe size and shape and that, furthermore, despite the universal release option no fittings or changes to the ski boots are necessary. It is particularly advantageous that the safety ski binding according to the invention is insensitive to icing, since it does not have any free-standing spiral springs and because of the small contact areas and the associated low friction in dry conditions how it responds in wet snow with the same release force. Finally, it is advantageous that it can be made largely from plastic and is therefore cheap.

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Further details and advantages of the invention may the exemplary schematich shown in the drawing Jhrun ^f £ v SExample removed; ground. i: s show:

Flg. I an A.icicht of the invention mounted on a Gki: Safety ski binding;

Flg. FIG. 2 shows a plan view of the safety ski binding shown in FIG. 1;

3 shows a view corresponding to FIG. 1, partly in section.

On the ski 1 shown in FIG. 1 in the area of the binding, a binding part 2a for the ski boot tip and a binding part 2b for the ski boot heel are mounted, both of which make use of the invention.

The binding part 2a for the ski boot tip has a housing j5 which is secured by tabs 4 by means of screws 5 is attached to the ski 1. In the housing 3, a prismatic elastic body 6 is arranged with an approximately trapezoidal cross-section, which is of a knurled screw 7 about one in Pig. 1 pressure plate 9 only visible in slot 8

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the clamping part 10a can be pressed, which is firmly connected to the clamping jaw ICb, which holds the ski boot tip. In order to be able to adapt the height of the 3-way clamping jaw 10b to different sole thicknesses of ski boots, a flat adjustment plate Il voi, which can be slid on the clamping part 10a, is in the housing ^ see, which is secured against falling out on the underside by a vufbieguiiG 11a passed under the end face ^ a. of the housing 3. At its upper edge the flat adjusting plate 11 has an angled portion 11b in which a thread for a screw 12 is located which reaches through a hole in the clamping part 10 and is held in place by a split pin or a snap ring 12a. The height of the clamping jaw 10b can be adjusted by turning the screw 12. To make it easier to open the binding, a winch lever is firmly connected to the clamping part 10 13 is provided, which has a recess or bore 1 * into which the tip of the ski pole can be inserted A threaded projection on the end face Ja of the housing 3 is screwed in an adjusting screw 16 which is used for the defined contact of the ski boot tip.

The binding part for the ski boot heel, which is shown in FIG. 1 and 2 denoted by 2b and in Fig. 3 also in section

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BAD CRlGSNAl.

is shown, consists essentially of the same individual parts as the binding body 2a for the ski boot tip. Corresponding parts are therefore provided with the same reference symbols. In order to enable the adaptation of the safety ski binding according to the invention to each ski boot, the binding body for the ski boot heel 2b can be displaced longitudinally in the direction of the ski. The easiest way to do this is to

™ is sufficient that elongated holes 17 are provided in the tabs 4 of the housing j5 through which the screws 5, which are screwed into the ski 1, reach. The binding part for the ski boot heel 2b advantageously has an eyelet 18 for attaching a lanyard 19. A slightly trapezoidal design of the upper part of the side of the clamping part 10 facing the ski boot heel makes it possible to connect the ski boot to the safety ski binding according to the invention in a particularly simple manner,

fc by first inserting the ski boot tip and then through Stepping down the ski boot as a result of the wedge effect of the Clamping part 10 is moved backwards until the clamping jaw lob engages over the ski boot heel. To open the safety binding, it is always necessary to push the lever IjJ downwards.

Oemäfl a particularly advantageous and important for the exact release of the safety ski binding according to the invention

ORIGIC BATHROOM

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AusfUhrungsform is in the middle of the jaw 10b each a preferably triangular recess 21 is provided, into which a recess on the upper edge of the sole of the ski boot 22 attached, preferably triangular, projection 23 engages. This projection 23 can consist of a screw or a pin with a triangular head.

The height-divisibility of the clamping jaws 10 and the longitudinal displaceability of the binding part 2b is particularly advantageous when the bindings are to be used for different types of ski boots, as is the case in particular with rental skis. If such adjustability is not required, the binding can be considerably simplified in that the adjusting plate 11 is omitted and the clamping plates 10a themselves have a bend 11a reaching through under the end face 3a of the housing 3. This also eliminates the bend 11b and the pit 12,

The release force of the safety ski binding according to the invention is changed in a wide range by the fact that the elastic body 6 in the binding position 2a and / or 2b is more or less compressed by actuating the adjusting screw 7 and the resulting pivoting of the pressure plate 9. A screwing in of this incense

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causes an increase in the release force. Is the one available Setting range for extremely different release forces, such as those between a safety bond for children and one for adults can, not much enough, I can do it by simply changing it of the elastic body 6 ^ one with another elastic properties get a completely different trigger range.

In the event of a force occurring across the longitudinal axis of the ski the binding areas 2a and / or 2b briefly by small degrees twisted out of position. In particular because of the interaction of the recess 21 with the projection 25 the ski boot 22, however, is only released when a predetermined release force is exceeded.

Most of the parts of the safety binding according to the invention, In particular, the housing 3 and the toilet body 10 * can be made of solid plastic, which simplifies and makes production cheaper.

Another advantage of erfindungsgemSflen Siaherheitssklbindung is that it is extremely simple in design and can be quickly adapted to all Erfordernlese. The use of an anytime detachable and

BATH ORIGINAL

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commercially available rubber or elastic plastic pieces allows even extremely different release forces to be mastered. In contrast to known bonds, at which always have metal protection on the toe and heel of the ski boot must be mounted if it is to be triggered in all directions, this is the case with the present Er finding not necessary.

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Claims (12)

Claims 1. Jcioherheitssk ^ blndung for the shoe tip and / or the shoe heel with a housing firmly connected to the dome and a clamping part movable against the force of an elastic body, which has a preferably approximately vertically arranged tensioning part and an approximately horizontal fc having zontally extending clamping jaw, characterized in that that the housing (3) and / or the clamping part (10) Has adjusting means (7) by means of which the elastic body (6) can be prestressed. 2. Safety ski binding according to claim 1, characterized in that that the elastic body (6) by means of at least one adjusting screw mounted in the housing (3) (7) can be pressed against the clamping part (10a). * 3 · Safety ski connection according to claim 1 or 2, characterized in that the elastic body (6) consists of a prismatic block of elastic material, preferably of rubber or soft plastic. 4. Safety ski binding according to claim 3, characterized in that the elastic body (6) by means of a preferably vertical pressure plate (9) extending transversely to the longitudinal axis of the ski against the clamping part (10a) pressure bar 1st. 209811/0796 bad ork ^ al 5. Safety ski binding according to claim 1, characterized in that that the elastic body (6) is transverse to the longitudinal axis of the ski approximately triangular or trapezoidal cross-section. 6. Safety ski binding according to spoke 5 * characterized in that that the elastic body (6) by an approximately perpendicular to the 'ski surface and by means of a Adjusting screw (7) about its upper edge pivotable pressure plate (9) can be pressed against the clamping part (10a). 7. Safety ski binding according to claim 6, characterized in that that the pressure plate (9) at the front edge has a bend (9a) adapted to the elastic body (6). 8. Safety ski binding according to one of the preceding claims, characterized in that the housing (3) has at least one slot (8) provided with a scale has, through which the setting of the elastic body (6) can be observed. 9. Safety ski binding according to one of the preceding claims, characterized in that the horizontal clamping jaw (10b) preferably by means of screw threads (12) is vertically adjustable. 20 9811/0796 bad original 10. Safety ski binding according to one of the preceding claims, characterized in that at least one binding body (2h) can be slid along the ski slope. 11. o Sicherheitr>. ^r iki.binduni: according to one of the preceding claims, characterized in that the clamping jaw (10b) P the contour of the toe or heel ::; customized is. 12. Safety ski binding according to claim 11, characterized in that that the jaw (10b) is in its oohuh facing Jeito in the middle a preferably triangular one Has recess (21) with which a correspondingly designed, attached to the ski boot (22) preferably triangular projection (2 ^), preferably a screw or a pin with a triangular head, is engaged. 13 · A safety ski binding according to any one of the preceding claims, characterized in that the side facing the ski boot vertical Pl High (2a) dee housing (3) at the level of the shoe sole with at least one punktformi gen projection, preferably a set screw (17) * or transversely to Ski axis running bead-shaped projection is provided. BATH ORIGINAL 209811/0796 P 269 Blank page