EP0830185A1

EP0830185A1 - Arrangement for a cross-country ski binding, in particular a skating binding

Info

Publication number: EP0830185A1
Application number: EP96908313A
Authority: EP
Inventors: Bernt-Otto Hauglin
Original assignee: Rottefella AS
Current assignee: Rottefella AS
Priority date: 1995-06-06
Filing date: 1996-04-19
Publication date: 1998-03-25
Anticipated expiration: 2016-04-19
Also published as: US5992873A; WO1996039233A1; EP0830185B1

Abstract

An arrangement for a cross-country ski binding, in particular a skating binding (15) and a shoe (16) adapted for use with the binding, is provided on its front sole (12) with engaging elements complementary to and capable of being introduced into engaging elements in the binding to create an articulating connection. The sole-side engaging elements include a bow (11) offset towards the rear in relation to the front sole end and extending transversely to the longitudinal direction of the sole and more or less parallel to the sole outer surface. The complementary binding-side engaging elements include a retaining hook (6) which grips over the bow (11) in particular from behind, the bow being capable of movement from a closure position into a release position and back. The retaining hook (6) can be moved from the closure position into the release position by an actuating element (3, 4) coupled to it against the force of an elastic element which exerts a forwards-directed bias pressure on it, in particular a spring element (5).

Description

Arrangement of a cross-country, especially skating binding

Description

The invention relates to the arrangement of a cross-country, in particular skating binding and a shoe adapted to it, which has on its front sole insertable in engagement elements of the binding complementary engagement elements for producing a joint-like connection, the sole-side engagement elements offset one relative to the front sole end to the rear arranged, extending transversely to the longitudinal direction of the sole and approximately parallel to the sole tread, and the complementary engagement elements on the binding side comprise a retaining hook, in particular from the rear, which can be moved from a closed position into a release position and vice versa.

Such an arrangement is known from DE 43 43 485 Cl. This known arrangement is characterized by a simple and compact construction. In addition, it guarantees precise ski guidance and maximum power transmission even during so-called "skating". It is essential in the known construction not only the arrangement of the

Joint axis in the ball area of the front shoe sole, but also the arrangement of an elastic sole contact element in the area in front of the joint axis between the sole and the ski cover surface.

A very similar construction is disclosed in DE 44 28 154 AI.

A disadvantage of the known arrangements, which each go back to the same inventor as the present invention, is the lack of handling security when getting in and out of the binding. The present invention is therefore based on the object of improving the handling safety of the edge arrangements. In particular, it should be ensured that when the holding hook is used, it remains in its closed position even with changing and stronger loads.

This object is achieved by the characterizing features of claim 1. The fact that the holding hook is biased in the closed position ensures that it remains in the closed position even with changing and stronger loads. Contrary to the pretension, the holding hook can be brought into its release position. Particularly advantageous constructive designs for this are described in claims 9 and 10, to which particular reference is made here. Accordingly, in a preferred embodiment, a tensioning cable acts on the retaining hook, which is preferably guided behind the heel of the shoe around it and on which a tensioning lever engages in such a way that the tensioning cable is pulled backwards by pressing it down, with the corresponding removal of the retaining hook against the effect of the spring elements biasing them in the closed position. This design applies to a retaining hook that grips over the sole-integrated bracket from behind.

If the construction is designed so that to produce an articulated connection between the shoe and the binding of the retaining hook overlaps the sole-integrated bracket from the front, the clamping cable acting on the retaining hook is directed towards the front and coupled to a pivoting lever mounted in front of the shoe such that when Depressing the tensioning lever, the tensioning cable is pulled forward with the corresponding entrainment of the retaining hook against the action of an element that elastically biases it backwards. If the binding is designed as a so-called "step-in" binding, the holding hook is held in its release position by a holding element which can be acted upon when entering the binding by the sole-side bracket such that the holding hook is released for movement into the closed position when the holding element is acted upon becomes. For this purpose, a projection corresponding to the upper side of the holding element when entering the binding with the sole-side bracket is preferably, for. B. cones or the like. , arranged. When entering the binding, this is first acted upon by the bracket on the sole side and pressed down. As a result, the holding element is released from the holding hook so that it can move into the closed position due to the elastic pretension.

The holding element is preferably a projection which is elastically biased upward within a binding housing and corresponds to the holding hook. The holding element is preferably a spring leaf made of plastic or metal (spring steel) which is resiliently biased upwards.

In combination with, but also independently of the arrangement described above, the front sole end can be assigned a support shell over which the front end

Sole end supported on a flexor. The front sole end can preferably be hooked onto the support shell. For this purpose, the front end of the support shell can have a projection which extends obliquely backwards and downwards, which corresponds to a corresponding recess, in particular a groove, at the front end of the sole for the purpose of the interlocking mentioned. The shoe is thus connected to the binding both at the foremost end of the sole and further back, in particular in the ball area, the articulation between the flexors being mentioned

Ski cover area and the mentioned support shell is guaranteed. The support shell, like the binding housing, is made of weather-resistant plastic. It is preferably an integral extension of the binding housing towards the front. It is so thin-walled that the flexibility of the flexor is not or only slightly affected.

An embodiment of a shoe binding arrangement according to the invention is explained in more detail below with reference to the attached drawing. Show it:

Figure 1 shows a binding for an arrangement according to the invention in a schematic perspective view obliquely from behind at the top.

Fig. 2 shows the binding arrangement of FIG. 1 partially in

Side view, partly in section in association with a ski boot, the binding-side holding element being in the closed position; and

Fig. 3 shows the binding arrangement corresponding to Fig. 2, wherein the retaining hook is in the release position.

In Fig. 1, a cross-country, in particular skating binding 15 is shown in a schematic perspective view. A part of the associated shoe 16 is shown in FIG. 2.

Accordingly, binding 15 and shoe 16 complement each other to form a corresponding arrangement, the shoe on its front sole 12 having complementary engagement elements which can be inserted into engagement elements of the binding in order to produce an articulated connection. The sole-side engagement elements on the shoe comprise a bracket 11, which is offset to the rear in relation to the front sole end, in particular is located approximately in the ball area and extends transversely to the longitudinal direction of the sole and approximately parallel to the sole tread ) overlapping retaining hooks from behind 6, which can be moved from a closed position according to FIG. 2 into a release position according to FIG. 3 and vice versa. The holding hook 6 can be moved from the closed position corresponding to FIG. 2 into the release position according to FIG. In the release position, the holding hook 6 is held by a holding element 8, 9 which can be acted upon when entering the binding through the sole-integrated bracket 11 such that when the holding element 8, 9 is acted on from above, the holding hook 6 for movement into the closed position according to FIG. 2 is released. In the present case, the holding element is a spring leaf 9 which is resiliently biased upwards, on the upper side of which a pin-like projection 8 is arranged, which corresponds to the bracket 11 integrated into the sole when the binding is entered. The pin 8 can be firmly connected to the spring leaf 9 or can be formed in one piece. Alternatively, it is also possible to form the pin 8 separately from the spring leaf 9. In this case, the pin 8 is mounted so as to be longitudinally displaceable within the upper cover of the binding housing 1 in such a way that it rests on the upper side of the part of the spring leaf which extends within the binding housing. In order to prevent the pin 8 from falling out of the housing 1 or the bearing opening located there, the pin 8 is provided on the inside of the housing with an annular collar, the outer diameter of which is larger than the inner diameter of the bearing opening assigned to the pin 8. When entering the binding in which the holding hook 6 is in the retracted release position according to FIG. 3, the pin-like projection 8 is pressed downward by the sole-integrated bracket 11. Correspondingly, the spring leaf 9 clamped with its front end in the binding housing moves downward and releases the retaining hook 6, so that it is pressed forward by the spring elements 5 into the closed position according to FIG. 2. The spring elements 5 can be two helical compression springs arranged side by side, which - 6 - are supported on the holding hook 6 on the one hand and on the binding housing 1 on the other. In order to be able to move the holding hook 6 from the closed position in accordance with FIG. 2 into the release position in accordance with FIG. 3, a tensioning cable 3, which is coupled behind the heel to a tensioning lever 4, engages on the holding hook 6 on both sides of the binding housing 1. For this purpose, the tensioning lever 4 is pivotably mounted on the rear end of the binding housing 1, specifically about an axis 17 extending parallel to the ski top surface and transversely to the longitudinal direction of the sole

2 shows, by depressing the tensioning lever 4, the tensioning cable 3 is pulled backwards with the corresponding entrainment of the retaining hook 6 against the action of the spring elements 5 biasing the retaining hook 6 in the forward direction. The retaining hook 6 is pulled as far back until the spring leaf 9 jumps up into a position according to FIG. 3. If the tensioning lever 4 is then released, the spring elements 5 press the holding hook 6 forward until it comes into contact with the rear end of the spring leaf 9. In this position the

Retaining hook 6 held in the release position by the spring leaf 9.

Behind the retaining hook 6, a cutout 18 is kept or recessed in the housing 1 in order to move the described back and forth

To enable movement of the retaining hook 6 within the binding housing 1. In order to prevent the ingress of dirt, snow or ice into the binding housing 1 through the cutout 18 mentioned, a plate-like cover 7 is arranged at the rear end of the holding hook 6, which moves with the holding hook 6 and the mentioned cutout in each relative position of the Holding hook 6 closes.

On the upper side of the binding housing 1, two guide ribs 19, which extend parallel to the longitudinal direction of the ski and at a distance from one another, are also formed complementary guide grooves on the underside of the sole of the shoe 16 correspond.

As already mentioned, the bracket 11 is integrated in the ball area of the front sole 12, specifically within one

Sole recess, as this z. B. is shown and described in the aforementioned DE 43 43 485 Cl.

The shoe is fixed to the back and up and to the side by the retaining hook 6. The forward support is provided by a support shell 20 assigned to the front end of the sole, which is designed as an integral extension of the binding housing 1. An elastically resilient element, namely Flexor 10, is arranged and effective between the support shell 20 and the ski top surface. The front end of the sole is thus supported on the flexor 10 via the support shell 20 mentioned, the associated pivot axis being defined by the interaction of the sole-integrated bracket 11 with the retaining hook 6 on the binding side.

In order to prevent the shoe from slipping out of the binding to the front, the front end of the support shell 20 is directed upward and provided with a projection 14 which extends obliquely backwards and downwards, which corresponds to a corresponding recess, in particular groove 13, at the front sole end . The groove 13 is opened obliquely upwards in association with the projection 14. In this way, the front end of the sole 12 can be hooked onto the projection 14 of the support shell 20. Otherwise, the shoe is supported by the bracket 11 on the retaining hook 6.

Getting started with the binding described is extremely easy. The user only needs to move the front end of the sole into the support shell 20 to the front, up to the stop. Then the mentioned hooking between the projection 14 and complementary recess 13 is made. At the same time it is ensured that the Sole-integrated bracket 11 in position, ie in association with the retaining hook 6 is such that when the shoe is lowered onto the binding housing 1, the bracket 11 acts on the pin-like projection 8 in the manner described above. The holding hook 6 is then, released by the spring elements 5, pushed into a position in which it engages over the sole-integrated bracket 11. Then the shoe is supported on all sides. At the same time, however, the shoe can be pivoted relative to the ski cover surface via the articulated connection between the bracket 11 on the one hand and the retaining hook 6 on the other hand, with constant contact between the shoe and the ski cover surface being ensured via the support shell 20 and the flexor 10. This contact, which exists in every swivel position of the boot, promotes the feeling of power transmission and ski control considerably.

Instead of the flat band-like bracket 11, a pin-like hinge axis can also be provided. The retaining hook 6 is then adapted accordingly.

The support shell 20 is designed as an integral extension of the binding housing 1, and in fact relatively thin-walled, so as not to impair the effect of the flexor 10.

1-3, the guide ribs 19 are interrupted in the effective area 21 of the retaining hook 6 or in the receiving area of the bracket 11 integrated in the sole. The corresponding section 24 is in

Side view opened approximately trapezoidal upwards. The complementary guide grooves 23 on the underside of the sole of the shoe 16 belonging to the binding (see FIG. 2) each have a filling 22 corresponding to the cutout 24; that is to say the filler 22 defines, in use, a partial section of the associated guide rib 19. The trapezoidal contour of cutout 24 and filling 22 allows a defined entry into the binding with exact positioning of the bracket 11 to the holding hook 6. It should be borne in mind that the support shell 20 is very thin-walled and accordingly flexible. An exact positioning of the bracket 11 is then not always guaranteed. This problem is remedied by the configuration of guide rib 19 and guide groove 23 described above.

All features disclosed in the application documents are claimed as essential to the invention, insofar as they are new compared to the prior art, individually or in combination.

Reference list

I binding housing 2

3 Actuator tension cable 4 Actuator tension lever

5 spring element

6 holding hooks

7 cover

8 holding element (pin-like projection) 9 holding element (spring leaf)

10 flexor

II bracket

12 sole

13 groove 14 projection

15 cross-country, especially skating binding

16 ski boots

17 axis

18 Cutout 19 Guide rib 20 Support shell

Claims

- 10 -claims

1. Arrangement of a cross-country, especially skating binding

(15) and an adapted shoe (16) which on its front sole (12) in engagement elements of the

Binding insertable complementary engagement elements for producing a joint-like connection, the sole-side engagement elements a staggered relative to the front sole end rearward, extending transversely to the sole longitudinal direction and approximately parallel to the sole tread and the complementary binding-side engagement elements one the bracket (11) - In particular from the rear - embrace retaining hook (6), which can be moved from a closed position into a release position and vice versa, characterized in that the retaining hook (6) by means of an actuating device (3, 4) coupled to it against the action of one in The element forwardly elastically prestressing, in particular the spring element (5), can be moved from the closed position into the release position.

2. Arrangement according to claim 1, characterized in that the holding hook (6) is held in its release position by a holding element (8, 9) which can be acted upon when entering the binding through the sole-side bracket (11), such that when the holding element is acted upon ( 8, 9) the holding hook (6) is released for automatic movement into the closed position.

3. Arrangement according to claim 2, characterized in that the holding element is designed as an elastically biased upward and with the retaining hook (6) corresponding projection, in particular in the form of an elastically biased spring leaf (9).

4. Arrangement according to claim 3, characterized in that the top of the holding element is associated with a protrusion when entering the binding with the sole-side bracket (11) cooperating, in particular an upwardly projecting pin (8).

5. Arrangement, in particular according to one of claims 1 to 4, wherein a flexor (10) is effective in the area in front of the articulated connection between the sole and the ski top surface, characterized in that the front end of the sole (12) has a flexible support shell (20) is assigned, via which the front sole end is supported on the flexor (10).

6. Arrangement according to claim 5, characterized in that the front sole end (12) at the front end of the support shell (20) can be hooked.

7. Arrangement according to claim 6, characterized in that the front end of the support shell (20) has an obliquely rearward downward projection (14) which corresponds to a corresponding recess, in particular groove (13), at the front sole end.

8. Arrangement according to one of claims 5 to 7, characterized in that the support shell (20) is an integral extension of the binding housing (1).

9. Arrangement according to one of claims 1 to 8, characterized in that the actuating device coupled to the retaining hook (6) comprises a tensioning cable (3) engaging on the retaining hook and a tensioning lever (4) cooperating therewith.

10. The arrangement according to claim 9, characterized in that the clamping lever - in particular in the area behind the heel - is pivotally mounted on the binding housing (1) or directly on the ski top surface about an axis (17) extending parallel thereto and transversely to the longitudinal direction of the ski.

11. The arrangement according to claim 10, characterized in that the clamping lever is L-shaped, wherein the pivot bearing is located at the free end of the shorter leg, the tension cable is connected in the corner area and the longer leg is directed backwards for the purpose of actuation.

12. Arrangement according to one of claims 1 to 11, wherein on the top of the housing (1) of the binding (15) at least one, in particular two transverse ribs parallel to the longitudinal direction of the guide ribs (19) are formed, which in use with corresponding Guide grooves (23) on the underside of the sole of the shoe (16) belonging to the binding correspond, characterized in that the at least one guide rib (19) in the effective area (21) of the retaining hook (6) is interrupted or has a cutout (24) and that the at least one guide groove (23) has a complementary filling (22).

13. The arrangement according to claim 12, characterized in that the cutout (24) of the at least one guide rib (19) and the complementary filling (22) of the at least one guide groove (23) in section parallel to the longitudinal direction of the ski and perpendicular to the ski top surface each have an approximately trapezoidal shape Have cross-section.