WO1999007450A1

WO1999007450A1 - Fixing plate for ski

Info

Publication number: WO1999007450A1
Application number: PCT/CH1998/000327
Authority: WO
Inventors: Silvano Zorzi
Original assignee: Silvano Zorzi
Priority date: 1997-08-05
Filing date: 1998-08-03
Publication date: 1999-02-18
Also published as: EP1001833A1

Abstract

The invention concerns a fixing plate (2) designed for a ski (1) comprising a fixing plate (2) mounted rotating about an axle (4), preferably at its front end in the direction of travel. The fixing plate (2) slides longitudinally relative to a system (5, 6) designed to limit its travel.

Description

Binding plate for a ski

The invention relates to a binding plate for a ski according to the preamble of independent claim 1.

The plates known today either only give a distance from the upper edge of the ski to the lower edge of the ski boot or stiffen the ski only passively and statically. Weight forces from the driver do not act directly on the device for influencing the rigidity. Bumps or blows, e.g. in the case of jumps or mogul slopes, are not damped or only insignificantly.

The known plate constructions not only adversely affect the bending curve of the ski, but, insofar as they are firmly connected to the upper cover sheet of the ski surface, also the forces which act on the ski boot from the binding. This affects the properties of the binding and the ski itself.

The object of the present invention is to introduce weight forces and / or centrifugal forces in an active and dynamic manner, to influence the ski rigidity and to dampen shocks or impacts.

Confirmation copy θ The plate according to the invention should also have the property that the forces of the binding on the ski boot remain largely independent of the bending of the ski, ie of its bending curve. As a result, the forces required to release the binding in accordance with the setting of the binding do not change.

According to the invention, these objects are achieved with a plate which has the features of the characterizing part of independent claim 1. The dependent claims relate to advantageous developments of the invention.

This eliminates the above-mentioned disadvantages of the plates known today. With the device, the ski retains its original bending properties when skiing. The so-called flex of the ski is retained. When cornering, the ski forms the ideal bending line for the radius of the curve. The binding and the forces acting on the ski boots do not influence the bending line of the ski. The holding forces of the binding acting on the ski boot are also not dependent on the respective bending curve of the ski.

Via the movable binding plate, the weight forces in an active and the centrifugal forces in a dynamic way can be applied to a spring system, e.g. a curved leaf spring can be initiated. The springs can be selected so that the forces between the plate and the ski are transmitted at certain positions. The spring system can be between

Binding plate and ski or between the binding plate and base plates and only affect the ski according to the requirements.

Shocks or impacts, for example when driving on mogul slopes and when jumping, are also dampened by the spring system 7. The damping effect can be enhanced by means of damping elements which are arranged between the binding plate and the ski. With one stop the overstressing of the spring system can be prevented

Steaming elements can also be used to steam the

Jerky movements of the binding plate in the absence of the effective forces, such as the weight, the centrifugal forces and the forces of blows can be provided

With the spring system, depending on individual needs or in the event of changing snow conditions, the pretensioning force of the springs can be changed with an adjusting or pretensioning device.The spring elements can also be exchanged prevented in the spring system

The binding plate can have special elements for centering the binding plate in the bearings. The binding plate, which serves as a platform for the ski binding, is not deformed by the effective forces when deforming the ski. Therefore, the release mechanisms of the

Safety ski binding not affected in any way This fully guarantees the safety requirements for a ski binding

The binding plate can be mounted on snowboards with a few adjustments to the binding plate which are familiar to the person skilled in the art

In general, the term ski in the sense of this patent specification should also be understood to mean a snowboard or a similar sports device

The invention will be explained in more detail below with reference to the schematic drawings, which show embodiments of the invention and parts thereof Show it:

Fig. 1 shows a ski with a binding plate according to the invention in a

Side view and in a top view;

Figure 2 shows the ski of Figure 1 in side view with a ski binding on the binding plate;

3 to 8 different embodiments of the spring system;

9 shows the front bearing in the direction of travel of the ski in a schematic side view;

10 shows the rear bearing in the direction of travel of the ski in a schematic side view;

Fig. 11 shows a cross section through a bearing and a ski

Binding plate, as well as through a seal, viewed in the direction of arrow A of Fig. 10;

Fig. 12 different damping systems each in a cut

Side view;

13 shows a seal in side, plan and front views;

14 shows a device for centering the binding plate;

15 shows a ski with a binding plate with the forces acting on it

Binding plate between front part and rear part, as well as front part and rear part of the ski act; ig 16 in one section an adjustable biasing device for a

Feather,

17 a side view and a front view of a further spring system with spiral springs and a stop,

18 shows the top view of a snowboard with a binding plate according to the invention, on which the positions for the shoes are shown,

19 shows the side view of a rear bearing for a device

Spring system,

20 shows the side view of a simple embodiment of the rear bearing

The binding plate 2 is freely displaceable axially (in the longitudinal direction of the ski 1) in the rear bearing 5. The rear bearing pin 6 serves as a vertical fixation of the binding plate 2 upwards. The rotation of the binding plate around the front bearing pin can be restricted so that the binding plate is only around is limited to a few millimeters, for example 3 to 8 millimeters. The binding plate 2 can thus move freely in this region vertically, upwards and downwards in a specific region

The weight and centrifugal forces are due to the freely movable

Binding plate 2 introduced into a spring system in the area described. The spring system, preferably a curved leaf spring 7, is tensioned when forces occur (weight, centrifugal forces or impacts). This tension of the leaf spring 7 is released by separate plates on the ski 1 or directly via the base plate 3 ^' front bearing 3, Fig 9, and the

Base plate 3 'from the rear bearing 5, Fig 10, initiated on the ski 1 So the bending line of the ski is influenced in an active, dynamic manner as required

Bumps during jumps or when driving on mogul slopes are dampened by the leaf spring 7 in the same manner described. The entire arrangement could also be reversed, that is to say the bearings 3 and 5 were interchanged

The forces F1, F, F2, or F1 \ F ', F2', the forces on a ski with a binding plate, which act on the binding plate between the front part and the rear part, and the front part and the rear part of the ski, and bending lines of the ski are shown in FIG. 15 shown

2 shows the arrangement of ski 1, binding plate, or ski binding 8 9 and ski boot 10. The binding plate 2 serves as a platform for mounting the binding 8, 9. Any brand with a

Front jaws 8 and a heel holder 9, or whatever, be fixed to the binding plate 2

This arrangement offers huge advantages from a safety point of view compared to the known plate constructions, since the binding plate 2 does not deform when the ski 1 bends - the front bearing 3 is designed as a fixed bearing, the rear bearing 5 as a floating bearing - the function of the ski binding remains absolutely unaffected

The binding plate 2 can also be part of a binding. This enables a binding manufacturer to construct his binding more easily and thus to produce it more cheaply. Parts 3 and 5 could also be part of a ski

In a particularly advantageous embodiment of the invention, the device has a spring system. This can be, for example, a curved leaf spring 7 for introducing the forces. The leaf spring 7 is preferably arranged as shown in FIG. 3 Spring system this can be adapted to the desired requirements such as rigidity, pressure distribution on the ski 1 and preload. The spring system can be designed as desired. 5 a to f show some examples. The one or more springs, viewed in the direction of travel, can be arranged under the front part of the plate and / or the middle part of the plate and / or under the rear part of the plate. One or more springs can also be arranged behind the rear bearing.

By arranging the spring system asymmetrically, the pressure distribution on the ski 1 can be changed. 6, the front part of the ski 1 is stiffened more than the rear part of the ski. 7, the rear part of the ski 1 is stiffened more than the front part of the ski.

Depending on the personal feeling of the driver or depending on

The spring system according to Fig. 16 can e.g. can be individually biased with a preload screw 27.

The spring system could also be arranged as shown in Fig. 4, shown here only for one variant. The underside of the binding plate 2 can be designed differently. FIG. 8. The effective forces can be introduced via a straight surface 2 ^' or a curved underside 2 ^" . The underside of the binding plate 2 can be provided with any desired elevation / depression combinations. The effective ones Forces can also be applied to the spring system via lever systems.

Depending on the driving style and driving situation, the effective forces on the spring system can temporarily be dispensed with. This causes the binding plate 2 to move upward. Damping can be provided for this movement, as shown in FIG. 12. The damping can be carried out hydraulically, pneumatically, magnetically or mechanically, as shown in FIGS. 2a to d. The springs of the spring system can also be used as damping elements be trained, i.e. take on a double task, springs and vapors. 12a shows a shock absorber 23 between binding plate 2 and base plate 5, which dampens the movements of binding plate 2 towards ski 1 and away from ski 1. The shock absorber 23 can be single or double acting. The spring 24 shown in FIG. 12b also between

Base plate 5 and binding plate 2 can act in both or only in one direction. In the simple embodiment of FIG. 12c, a rubber buffer 25 fastened to the binding plate or partially embedded therein abuts against the rear bearing bolt 6 serving as a limiting axis for the lifting movement of the binding plate. In the embodiment shown in FIG. 12d, there is between plate and Limiting axis, or rear bearing pin 6, a mutually repelling magnet pair 26 is arranged. One magnet is attached to the boundary axis, the other to the binding plate.

The binding plate 2 can be additionally damped if necessary by attaching one or more springs 17 'in parallel according to FIG. 17. With a stop 17 ", the stroke of the binding plate 2 can be limited downwards.

To center and cancel the lateral play of the binding plate 2 in the bearings 3 and 5, four centering elements 222 can preferably be attached to the binding plate 2, as shown in FIG. 14.

A seal 11 is provided so that no liquids, snow or other solid bodies can penetrate into the binding plate. FIGS. 11 and 13 show this seal 11. This seal 11 has an opening 13 ′ and is installed between binding plate 2 and ski 1. This seal is not shown in FIGS. 1 and 2 for the sake of clarity.

Fig. 19 shows a rear bearing 50 in a partially sectioned

Side view. A base plate 52 is mounted on the ski 51. The base plate 52 has a circular depression or a hole 520. On the Base plate 52 is a guide plate 53 is arranged, which has a circular pin 531 that fits into the hole 520 of the base plate 52. The pin 531 and the hole 520 in the base plate 52 together form a pivot bearing for the guide plate 53 opposite the ski 51, which the exact alignment of the bearing during assembly is facilitated (assembly aid) As soon as the parts are correctly aligned during assembly, the fastening screws are tightened and the pivot bearing is fixed Carriage 54 is guided

A U-shaped or H-shaped fork 55 connects the carriage 54 and the binding plate 56. The fork 55 and is articulated to the carriage 54 and to the binding plate 56. The axis 5455 connects the two legs 551 to the carriage 54 and the axis 5556 connects the fork 55 to the binding plate 56. In this construction, the binding plate 56 can move up and down relative to the ski 51 and, on the other hand, the ski 51 can change its bending curve. In both movements, the dovetail 541 of the sled 54 becomes in the dovetail groove 532 moved forward and / or rearward in the longitudinal direction of the ski 51

The rotational movement of the carriage 53 on the base plate 52 can be limited with screws in circular segment-shaped holes (not shown). The movement of the carriage 54 in the dovetail groove in FIG

Guide plate 53 can be limited by stops (not shown). The construction of the rear bearing 50, as shown in Fig. 19, prevents twisting of the binding plate 56, which is attached to a front bearing with an axis and is rotatable about this axis, practically complete with respect to the ski This torsional strength of the binding plate 56 contributes significantly to the direct transmission of the forces and moments from the ski boot to the ski and vice versa In a simple embodiment, without a spring system, the stroke of the binding plate, ie the freedom of movement of the binding plate in the rear bearing, viewed in the direction of travel of the ski, towards the ski and away from the ski can be limited to zero. This can be achieved, for example, if an axis is guided through an elongated hole in the binding plate to limit the stroke of the rear bearing. When changing the bend of the ski in the area of the binding plate, the binding plate rotates somewhat about the axis mentioned and the elongated hole of the binding plate moves forward and / or backward with respect to the axis.

In another simple embodiment, which is shown in FIG. 20, the binding plate with an axis 5456 can be attached directly to the slide 54 of the rear bearing 50, which can be moved forwards and backwards.

The binding plate described can also be used with a few adjustments to influence the bending line and rigidity of snowboards. Principle, function and structure are exactly the same as previously described for the skis. 18 shows the arrangement of a binding plate on a snowboard. Binding plate 2, bearing 3 and bearing 5 are wider in this case than with a ski.

List of reference numerals:

1 ski

2 binding or base plate

3 front bearings

3 'base plate

4 front bearing bolts

5 rear bearing

6 rear bearing bolts

7 curved leaf springs

8 front jaws of the ski binding

9 heel holder of the ski binding

10 ski boots

1 1 seal

12 cushioning

13 opening

17 'springs

17 "stop

25 rubber buffers

26 magnet pair

27 preload screw

50 bearings

51 skis

52 base plate

520 holes

53 guide plate

531 cones

532 dovetail groove

54 sledges

541 dovetail

55 fork

551 legs

56 binding plate

54546 axle

5556 axis

100 snowboards

222 centering element

F1, F, F2; F1 ', F', F2 'forces

Claims

1 device with a binding plate (2) for a ski (1), characterized in that the binding plate (2) is rotatably mounted about an axis (4), preferably at its front end in the direction of travel, and with a device (5 , 6) to limit the stroke of the binding plate (2), against which the binding plate (2) is displaceable in the longitudinal direction

2 Device according to claim 1, characterized in that the

Device (5, 6) for limiting the stroke of the binding plate (2) is arranged in the region of the rear end of the binding plate (2)

3 Device according to claim 1 or 2, characterized in that a base plate (3 ') is arranged between the binding plate (2) and ski (1)

4 Device according to one of claims 1 to 3, characterized in that a spring system is arranged between the binding plate (2) and ski (1), which consists of one or more

Spring elements (7)

5 Device according to one of claims 1 to 4, characterized in that between the binding plate (2) and ski (1) a damping device with one or more damping elements

(23, 24, 25, 26), which are single or double acting, is arranged to dampen movements of the binding plate away from the ski and / or towards the ski

6 Device according to one of claims 1 to 5, characterized by a seal (11) which prevents the penetration of Foreign bodies such as liquids, snow or other foreign bodies in the space between the base plate (2) and ski (1) prevented.

7. Device according to one of claims 1 to 6, with a device

(50), which prevents the binding plate (2) from rotating, in particular with respect to the ski (1).

8. Ski (1) with a device with a binding plate (2) according to one of claims 1 to 7.