DE2660307C2 - Release binding - Google Patents

Description

The invention relates to a release binding of the type specified in the preamble of claim 1.

In order to be able to use ski bindings for both downhill and touring skiing, a sole plate that can be connected to the shoe and has a front and a rear holding device can be locked on the ski. This sole plate is located in the front in the area of the toe of the shoe Holding device held pivotably so that the sole plate and thus the shoe when the rear holding device is released The heel area can be raised to allow for one of the natural foot movements when walking to allow adapted movement of the shoe. However, if the sole plate is used with the rear holding device locked, the shoe is held immovably on the ski as long as none of them reach the release force Loading force occurs. If, for example, a correspondingly large force is exerted on the If the release binding is exercised, the sole plate is released from the resilient detent in the area of the front or the rear holding device pushed out and released from the ski.

To switch such a release binding from the departure position to the touring position, d2s rear end of the sole plate released from the rear holding device, so that the sole plate is then unobstructed can be pivoted up about the pivot axis of the front holding device away from the ski. Disadvantageous compared to the natural foot movement when walking, the sole plate is designed to be stiff have to be. to be able to meet the conditions of downhill skiing; n. This fact makes itself especially noticeable when going up over steeper and steep slopes, because of the stiff sole plate the foot movement can only take place via the ankle, which makes walking uphill very difficult.

In a known release ski binding of the type specified in the preamble of claim 1 (CH-PS 5 04 216), the part of the rear holding device that overlaps the sole plate in the downhill position forms a support surface for the rear end of the sole plate with its upper side. This determines the minimum incline of the soleplate for touring. This known release ski binding can be used for touring, but it is mainly suitable for essentially horizontal stretches or only slight inclines. In the case of greater gradients, the inclination of the sole plate in relation to the ski surface, which results from the rest of the sole plate end on the part of the rear holding device that overlaps it in the downhill position, is not sufficient.
A ski binding is also known (CH-PS 5 16 319). which can be quickly brought from the departure position to the touring position. In this well-known ski binding, the rear holding device has a pivotably mounted hook with a crossbeam which, in its operating position during touring, determines the minimum inclination of the sole plate with respect to the ski surface. This hook with its traverse results in a much larger angle between the sole plate and the ski surface and is therefore better suited for steep climbs. However, the disadvantage of this known ski binding is that when the hook is not used, the sole plate rests on the ski surface, which is why this ski binding is not suitable for touring on essentially horizontal stretches or less steep stretches.

The object of the invention is to provide a release ski binding that can also be used for touring with an improved one in this way rear holding device to be provided that the provided by the rear holding device Support for the sole plate on different terrain conditions can be customized.

This object is achieved by the features specified in the characterizing part of claim 1.

The release binding according to the invention combines the advantages of the known one described above Ski binding with the advantages of the other known ski binding described above, each only one Have support for the soleplate in the unlocked state. With the release binding after the invention, the rear holding device is designed so that different inclinations of the sole plate are predeterminable in their close proximity to the skin.

Advantageous refinements of the invention form the subject of the subclaims.

In the embodiment of the invention according to claim 2, the compression spring provided as a further support going uphill on steep slopes is made considerably easier because the compression spring provides the upward movement the soleplate supports

In the embodiment of the invention according to claim 3, the plunger allows depending on the length setner Adaptation to different gradients. Also, depending on the length of the pressure ram, the possible Broom travel; It is blinking or switched off completely.

In the embodiment of the invention according to claim 4, there is the possibility of transversely positioning the holding device not to use a support at all during touring, which has a minimum inclination of the sole plate in relation to the ski surface. This makes the Release binding according to the invention is even further improved.

In the embodiment of the invention according to claim 5, the locking device ensures that the rear holding device is always held in the desired position and also in the desired position Position is in the right position.

For the optional use of the support surface or the further support, at least the one that forms it Part of the rear holding device can be moved accordingly, in addition to the rotary adjustment according to claim 6 about an axis of rotation at right angles to the ski surface also a pivoting about a horizontal axis parallel to the ski surface: n question can arise. The rotary adjustment around the ski surface but right-angled axis of rotation gives the possibility of more than one support possibility in the simplest way to be able to provide.

Embodiments of the invention are shown in the drawings and will be described in more detail below described. It shows

Fig. 1 is a side view of a release binding according to the invention in the departure position,

FIG. 2 the release ski binding according to FIG. 1 in plan view,

3 shows a section along the line 3-3 in FIG. 2 in larger scale,

F i g. 4 shows a section along line 4-4 in FIG. 3.

5 shows a plan view of the rear holding device in an intermediate rotary position,

6 is a side view of the release ski binding in FIG the tour position.

F i g. 7 one of the F i g. 6 corresponding illustration, but using a compression spring as a support, and

FIG. 8 shows a representation corresponding to FIG. 7, a pressure plunger being inserted into the compression spring designed as a helical spring.

The release ski binding shown consists essentially of a sole plate 26 for the dash-dotted line indicated shoe 24, the tevorrichtung with a front Hai 28 and a rear holding device 30 can be locked. The holding devices 28 and 30 are mounted on the ski 22. In order to be able to releasably but immovably connect the shoe 24 to the sole plate 26, a bracket 44 is provided on the one hand, which engages over the heel part of the shoe 24 and carries a locking bolt 48 and can be braced with this with respect to the shoe 24, and on the other hand a bracket 54 is present which supports the protruding Part of the shoe 24 holds against the sole plate 26. To adapt to different shoe sizes the brackets 54 and 44 i; i are different receiving openings 40 or 58 can be used in the sole plate 26. In addition, the bracket 44 has to adapt its Leg lengths of additional clamping sleeves 45. As shown in FIG. 2, the angled ends 42 engage of the bracket 44 in a clamping nut 43. which is arranged between webs 32 of the sole plate 26.

The sole plate 26 itself carries two self-resilient holding parts 34 which run in the longitudinal direction of the ski 22, protrude towards the tip of the ski and to a certain extent

ίο form a springy storage fork with which the sole plate 26 is releasably hinged to the front holding device 28. The holding device has for this purpose 28 laterally projecting cams 102 (FIG. 2). in the corresponding recesses engage in the region of the free end of the holding parts 34, so that upon movement of the soleplate not in the sense of a pivoting movement about the axis formed by the cams 102 the holding parts 34 are spread apart by these cams, which of course results in the loosening of the soleplate 26 from the front holding device 28 results.

So that the release force can be changed are the holding parts 34 are not only screwed to the webs 32 with screws 62 and 64, but are additionally pressed by screws 70 on the webs 32 of the soleplate 26, so that by moving the Screws 70 in holes 66 the free leg length of the holding parts 34 and thus the spring force can be changed can. After it has been released from the front holding device 28, the sole plate 26 is secured by a safety rope 92 connected to the ski 22 so that the ski remains trapped without any major risk of injury.

The good hold of the sole plate 26 on the ski 22 is ensured by the precise assembly of the holding devices 28 and 30 ensured. In order to be able to compensate for inaccuracies here, the. Sole plate 26 a rear End cap 83 which is slidably mounted on the soleplate. and that it is with the help of in longitudinal slots engaging fastening screws 83c and 83Λ the soleplate 26 clamped. The Versteliweg can be determined by insert plates 83y, which prevent a shift protection under pressure even if the fastening screws 83e, 83Λ should loosen.

The rearwardly facing face 83d of the end cap 83 falls obliquely towards the ski 22 and acts with a corresponding bevel of the rear Holding device 30 together in the departure position of the binding, as shown in FIGS. 1-3 can be. The rear holding device 30 consists according to the illustrated embodiment of a Fastening plate 108 screwed tightly to the ski 22 and one having a pronounced longitudinal extension D'ühteil 112, with play on a cylindrical Attachment 120 of the fastening plate 108 and with the help of a plate spring 122 against the Bofestigungrplatte 108 is pressed. As an abutment for the plate spring 122, the nut 123 serves as a cylindrical one Lug 120 held screw 114. As in particular from FIGS. 3 and 4, the mounting plate 108 has a latching device in the form of radial grooves 116 in the protruding groove 118 of the rotating part 112 engage so that about di? Disc spring 122 a spring detent for preferred rotational positions of the rotating part 112 is achieved, as is shown, for example, in FIGS Fig.l and 7 are shown.

The play between the cylindrical extension 120 of the fastening plate 108 on the one hand and the rotating part 112

on the other hand, in connection with the plate spring 122 allows a limited movement of the rotating part 1 12, which is necessary when the distance between the front holding device 28 and the rear holding device ', 30 is shortened due to a strong ski deflection, so that the sole plate 26 from the cam 102 of the front holding device would be pushed out and thus released from the ski 22 if the rotating part 1 12 were mounted rigidly.

Of the end face 83c / 83 of the end cap cross-member 130 of the rotary member 1 12 forms with its upper side a support surface 131 so that in the in F i g. 6 shows the touring position of the binding, the sole plate 26 has a minimum inclination relative to the ski 22 that is dependent on the height of this support surface 131. As a result, even on inclines, the touring skier can adopt footsteps that are otherwise only possible in flat terrain.

Pine further possibility hopefully harm. that aU support 129 for the sole plate 26, a compression spring 128 directed against this is provided. which is located with respect to the axis of rotation of the rotating part 112 diametrically opposite the bearing surface 131 on a sloping surface 126 and is supported by a cylinder body 124 screwed to the rotating part 112 . Therefore, when the rotary member 1 12 g 180 ° F in the in i. 7 is pivoted, the compression spring 128 acts on the sole plate 26, whereby the lifting movement is facilitated in a way that saves effort for the touring skier. The spring travel of this compression spring 128 can, however, be limited or completely switched off if the compression spring 128 is designed as a helical spring and carries an inserted pressure tappet 132 (FIG. 8). The pressure ram 132 thus determines the minimum inclination of the sole plate 26, which allows a secure adaptation to steep terrain even when a compression spring is used as a support.

If the holding device 30 is rotated into the intermediate position shown in FIG. 5, the usual conditions result which are suitable for touring skiing in flat terrain.

For this purpose 2 sheets of drawings

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Claims (6)

Patent claims: 1. Release ski binding with one that can be attached to the shoe Sole plate, which in the downhill position with a front, in the area of the toe of the shoe and a rear holding device can be locked and thus in the downhill position on the ski is held, whereas it is released in the touring position by the rear holding device and one at right angles to the longitudinal direction of the ski and parallel to the top of the ski in the area of the front holding device arranged axis is pivotable. the one retaining the sole plate (26) in the departure position Part (130) of the rear holding device (30) with its upper side a support surface (131) for the rear end of the sole plate, characterized in that the rear holding device (30) rotatably arranged about an axis on the ski and with another, under the Sohlenpkitie (26) movable support (129) provided is. 2. release ski binding according to claim 1, characterized in that the further support (129) from a compression spring (128) directed against the sole plate (26). 3. release ski binding according to claim 2, characterized in that designed as a helical spring Compression spring (128) a pressure plunger (132) can be used. 4. release ski binding according to one of claims 1 to 3, characterized in that the bearing surface (131) of the hold-back; - the sole plate (26) serving part <! 30) -ind the further edition (129) with respect to the axis of rotation of the other holding device (30) are arranged diametrically. 5. release ski binding according to one of claims i to 4, characterized in that between the rotatable rear holding device (30) and its mounting plate (108) a spring-loaded Latching device (116, 118) for preferred rotational positions is provided. 6. release ski binding according to one of claims 1 to 5, characterized in that the axis of rotation of the further support (129) is at right angles to the ski surface.