JPH06210042A - Interface device interposed between ski board and clamp element - Google Patents

Abstract

PURPOSE: To provide an interface device which is arranged between a ski plate and both binding elements at front and back, which buffers bending of the ski plate effectively in a longitudinal and vertical plane, and which guarantees correct transmission of operative stress of a ski boot against the ski plate at a starting time of rotation and an operation step of the ski plate. CONSTITUTION: An interface device comprises a slender plate member 15 on which a front binding element 3 and a rear binding element 4 are assembled. At one end part 16 of the plate member 15 is connected to a ski plate integrally and the other end part 19 is combined to the ski plate via connecting parts 20, 21. The connecting parts 20, 21 are deformable elastically along the longitudinal direction. Furthermore, a hard spacer is inserted between the plate part 15 and an upper surface of the ski plate within an assembling area of the front binding element 3. Additionally, it is preferable to arrange a layer 25 of elastically compressible material between the plate part and the ski plate.

Description

Detailed Description of the Invention

The present invention relates to an interface device between a front binding element and a rear binding element and a ski for supporting a boot on a ski in a supported state.

[0002] Ski boots are generally held in bearing on a ski with front and rear binding elements, each holding the sole end of the ski boot. These binding elements are usually mounted directly on the upper surface of the ski.

It is known that ski boots and binding elements affect the flexibility of the beam members that make up the ski and the behavior (operability) of the ski on snow. In addition, the behavior of the ski on the snow is the type of ski competition to be carried out (ie slalom, downhill, large spin, etc.).
It also depends on the physique of the skier.

Various types of interface devices arranged between the ski and both binding elements have been investigated in order to moderate the influence of the binding elements and the ski boot on the beam members of the ski. Was done.

For example, PCT International Application No. WO82 / 03
According to U.S. Pat. No. 182, an interface device is known which seeks to reduce the influence of ski boots and binding elements in such a way that when the ski flexes, it presents a regular curve in a manner that is as close as possible to the natural state.

Other interface devices are also known which act as cushions on skis. Such a device
It is known from PCT International Application No. WO83 / 03360. The device includes a plate member on which the binding element is mounted. Below the plate member is an elastically compressible material. One end of the plate member is integrally connected to the ski, and the other end is free to slide against the elastic restoring force of the small block made of a compressible material.

Although such a device gives good results, the transfer of stress between the ski boot and the ski is not optimal. In fact, most of the vertical stresses and biases are transmitted through the ends of the plate member, but offset against the ends of the ski boot.

Another interface device is known from European Patent Application No. 409749. With this device,
The plate member can elastically swing in the longitudinal direction with respect to the ski. This device has drawbacks similar to those described above (ie,
Stress and bias are not accurately transmitted between the ski boot and the ski).

One of the aims of the invention is to propose an interface device provided between the ski and the binding element which ensures a good transmission of the steering stress between the ski and the ski.

Another object of the invention is to ensure that the ski flexion is effectively mitigated in the longitudinal vertical plane,
Another object of the present invention is to propose an interface device that ensures accurate transmission of the steering stress of the ski boot to the ski at the start of turning and during the operation of the ski.

Other objects and advantages of the present invention will be apparent from the following description, which is given by way of non-limiting example only.

The interface device according to the invention is arranged between a ski and a front binding element and a rear binding element for holding both ends of a ski boot, the binding element comprising a skid (pattern). ) In the central area of the ski, each including a pedestal for connecting the binding element to the ski.

The device according to the invention comprises an elongated plate member, each end of which is connected to the ski in front of and behind the binding element, one end of which is located above the surface of the ski. And attached to the ski through a longitudinally elastically deformable connection, which further has a mounting area near its one end for integrally receiving a binding element called the first element. .

A feature of this device is that in the area of the other binding element, called the second element, there is a rigid spacer located underneath the plate member, said spacer being in contact with the upper surface of the ski and moving downwards. The bearing is supported and the plate member is supported downwardly with respect to the ski, and the rigid spacers direct the transmission of normal stresses between the plate member and the ski in the area of the second element. Is to guarantee.

The invention will be better understood by reference to the following description and the accompanying drawings which are an integral part thereof.

FIG. 1 shows the central part of a ski 1, commonly called the "sliding part". In this area, the ski boot 2 is supported on the ski 1 by means of the front binding element 3 and the rear binding element 4.

In a known manner, the front binding element 3 has a jaw 5 for holding the front end of the ski boot. The jaw 5 is carried by a body 7 which is connected to the ski via a pedestal 8. As can be seen in FIG. 1, the pedestal 8 extends rearwardly through a bearing plate 9 on which the front area of the sole of the ski boot rests.

Similarly, the rear binding element 4 also has a jaw 10 for holding the rear end of the ski boot, which jaw is carried on the body 11. The body 11 itself is connected to the ski through the pedestal 12. The pedestal 12 has a support plate member 13 at its front portion, and the rear end of the sole of the ski boot rides on the plate member 13. In a known manner, the body is slidably mounted along the pedestal and springs resiliently resist the rearward movement of the body.

The binding elements 3 and 4 are connected to the ski 1 via an interface device 14 which will be described in more detail below.

The interface device comprises an elongated plate member 15 extending between the binding elements 3, 4 and the upper surface of the ski. The elongated plate member 15 is rigid and can be made of any suitable material, especially aluminum alloy or composite material.

In the illustrated example, the plate member 15 is at a position higher than the upper surface of the ski over most of its entire length. This plate member 15 has in its front part a mounting area 15a where the front binding element 3 is assembled via its pedestal 8. In the rear part, the plate member 15 has a mounting area 15b for the pedestal 12 of the rear binding element 4.
Therefore, the front and rear binding elements 3 and 4 are assembled to the plate member 15.

The plate member 15 is connected to the ski at its front and rear portions. In its rear part, the plate member 15 has a lower end 16 which contacts the upper surface of the ski.
The lower end 16 is integrally connected to the ski by suitable means (eg screws 17). Of course, this method is not limited, and any other connection method may be used. For example, the rear portion of the plate member may be provided with a shoe or a thick spacer that keeps it raised above the ski. This integral connection is performed with a screw or the like that penetrates the plate member and the spacer (or shoe).

The front end of the plate member is connected to the ski through a buffering means acting in the longitudinal direction. In the illustrated example, the front end 19 of the plate member 15 extends forward beyond the pedestal 8. This front end is one step higher than the ski. The front end also projects on a support 20 which is integrally connected to the ski by suitable means (eg screws). In addition, a layer of adhesive 21 bonds the plate member to this support 20. This adhesive layer has adhesive properties as well as shear damping properties. Thus, this adhesive layer provides some strength and allows relative movement of the front end 19 of the plate member with respect to the support 20, at least along the horizontal longitudinal direction. Since the positional relationship of the plate member 15 with respect to the upper surface of the ski is determined, it can be seen that the relative movement of the end 19 with respect to the support 20 occurs during flexure and recoil movement of the ski. Adhesive layer 21 preferably provides mechanical resistance to longitudinal movement of plate member 15.

According to a preferred embodiment, a layer 25 of elastically compressible material is provided in the attachment area 1 of the rear binding element 4.
Within 5b, it extends between the plate member and the ski. Similarly, the layer 25 preferably extends forward in the direction of the front binding element 3. Advantageously, the layer 25 is mechanically damped along the vertical direction.

On the other hand, a hard spacer 26 is interposed between the plate member 15 and the upper surface of the ski at the front attachment area 15a. This spacer 26 preferably extends below the pedestal 8 of the front binding element 3 and below the bearing plate 9 on which the front of the ski boot rests. The spacer 26 is integrally connected to the upper surface of the ski. The spacer has a width in the mounting area which is approximately equal to the width of the ski. The plate member 15 is directly supported by the spacer 26,
The spacer is mounted directly on the upper surface of the ski.

It is advantageous to construct the support 20 and the spacer 26 as a single piece (ie, the spacer 26 is a rearward extension from the support 20).
However, this is not limiting, and the effect of this device appears to be greater if these components are separate.

Therefore, below the front binding element 3, the plate member 15 is supported on the spacer 26, so that the front part of the boot is directly connected to the ski. This spacer 26 ensures an accurate transfer of the steering stresses transmitted by the front part of the boot to the ski, especially at the start of turning.
Moreover, the interface device provides an effective cushioning of the ski in the longitudinal vertical plane.

According to a preferred embodiment, the plate member 15
Further has a plurality of elongated holes 30 distributed on its surface. A shoulder washer 31 penetrates each elongated hole and is integrally fixed to the ski with screws 32. These shoulder washers 31 allow movement of the plate member 15 along the longitudinal direction but prevent movement of the plate member along the lateral direction or vertical movement upwards beyond the play limit of movement.
The washer 31 holds, among other things, the plate member 15 on the spacer 26 in a supported state. The holes 33 located in the front end 19 of the plate member are also visible in FIG. These holes allow access to the screws that join the support 20 to the ski.

Good results have been obtained by using the plate member 15 which is one step higher than the ski by about 5 mm and the adhesive layer 21 having a thickness of about 2 mm. These are of course not limiting.

FIG. 3 represents another embodiment of the present invention.
According to this variant, the interface device comprises a plate member 35, the fixed end of which is located at the front of the ski and the movable end of which is located at the rear. The plate member 35 has a mounting area 35a for the front binding element 3 and a mounting area 35b for the rear binding element 4. In the embodiment shown, the plate member 35 is located one step above the upper surface of the ski over its entire length. Front end 3 of this plate member
7 is clamped between the pedestal 8 of the front binding element 3 and a spacer 36 integral with the ski on which the pedestal 8 is assembled. This spacer 36 extends over the entire length of the pedestal 8 (preferably including the bearing plate 9) and the entire width of the ski. Therefore, the assembly including the pedestal 8, the front end of the plate member 35, and the spacer 36 is integrally assembled with the ski. Each element can be joined integrally with its lower member, or, as can be seen in FIG. 3, the mounting screws of the pedestal 8 are screwed onto the ski and penetrate the plate member and the spacer. At any rate, the plate member 35 is supported by the spacer 36 in a supported state.

In its rear part, the plate member 35 is connected to the ski by means of shock-absorbing means operating in the longitudinal direction.
In the example shown, the plate member 35 extends beyond the rear binding element 4. The rear end 38 projects above a support 39 which is integrally connected to the ski by suitable means (eg screws). Moreover, a layer of adhesive 40 connects the end 38 to the support 39. As in the previous example, this adhesive layer is adhesive and extensible along its length. The adhesive layer is resistant to this stretching. The adhesive preferably has viscoelasticity.

The support 39 and the adhesive layer 40 are formed by the plate member 35.
The rear end portion 38 is held at substantially the same height as the front end portion of the plate member.

In this case, when the ski is flexed and reflexed, it is the rear end 38 of the plate member 35 that moves in the longitudinal direction with respect to the ski, and the adhesive layer 40 expands while The resistance to this relative movement is shown. Adhesive layer 40
The material of is preferably selected so that this layer exhibits a kinetic type resistance.

As in the previous example, the plate member 35 comprises a shoulder washer 4 integrally fixed to the ski with screws 44.
3 has one or a plurality of elongated holes 42 into which the holes 3 are fitted.
This attachment is the same as the above-described method of attaching the hole 30, the washer 31, and the screw 32. Washers
In particular, the rear portion of the plate member 35 is attached to the support 39 and the adhesive layer 4
Hold at 0 in the bearing state.

Furthermore, a layer 45 of compressible material is preferably interposed at least below the rear binding element 4 between the plate member 35 and the upper surface of the ski. The material of layer 45 is viscoelastic and cushioning along the vertical direction.

When skiing (especially when the ski is bent),
The plate member 35 influences the curvature of the ski and the pressure distribution of the ski against snow. On the other hand, as in the previous example, since the support plate 9 is directly on the ski through the support plate 35 and the spacer 36, the front end of the ski boot is in direct contact with the upper surface of the ski. Therefore, the steering of the ski is very precise and the start of skiing is very easy.

FIG. 5 shows another embodiment in which the interface device comprises a plate member 55 which extends over most of the length of the ski and in contact with its upper surface. This plate member 5
5 has a mounting area 55a for the front binding element 3 and a mounting area 55b for the rear binding element 4. Thus, in FIG. 5 it can be seen that the rear end 56 of the plate member 55 is sandwiched between the pedestal 12 of the rear binding element 4 and the upper surface of the ski and is integrally connected to the ski. In some cases, a thin layer of elastically compressible material may be applied to the plate member 5 at this location.
5 may be interposed between the ski 5 and the upper surface of the ski, or between the plate member 55 and the pedestal 12. This layer is not shown in FIG.

At the front, the pedestal 8 of the front binding element 3
Is integrally assembled to the plate member 55.

In front of the front binding element 3, this plate member 5
5 is an end 5 located at a position higher than the upper surface of the ski.
Have 7. This end 57 projects above the support 58, and an adhesive layer 59 of the same kind as the layers mentioned above connects the end 57 to the support 58.

As in the previous case, the plate member 55 has an elongated hole 60 through which a shoulder washer 61 passes, which washer is fastened to the ski with screws 62. The washer allows the sliding of the plate member relative to the ski along its longitudinal direction, but holds it vertically upwards and laterally, except for operating play. The washer 61 holds the plate member 55 against the ski, in particular at the base 8 of the front binding element.

From the foregoing it can be seen that the plate member 55 affects the ski curve and the pressure distribution of the ski against snow during the flexing phase. On the other hand, in this case, the plate member 5
Since the 5 itself is supported on the ski, the front of the ski boot is in direct contact with the upper surface of the ski, and therefore the ski is very accurately maneuverable and the start of skiing is very easy. is there.

The width of the relative movement of the plate member depends on the height of the front end and the rear end of the plate member with respect to the ski. Here, the rear end is close to the neutral axis of the ski. In order for the support 58 to have the same effect, the supports 26 and 36 must be
Is preferably thicker than.

Of course, the above description has been given only by way of example, and other embodiments of the invention can be adopted without departing from the scope of the invention.

It goes without saying that the roles of the front binding element and the rear binding element can be interchanged, especially with respect to the direct bearing of the binding element to the ski. In other words, by placing a particularly rigid spacer below the rear binding element, rather than the front binding element,
The rear binding element can be mounted directly on the upper surface of the ski along the vertical direction.

[Brief description of drawings]

1 is a schematic side view of a ski equipped with a binding element and an interface device according to a first embodiment of the invention.

2 is a perspective view of the interface device of FIG. 1. FIG.

FIG. 3 is a view similar to FIG. 1, corresponding to another embodiment of the present invention.

FIG. 4 is a perspective view of the interface device of FIG.

FIG. 5 is a partial sectional side view showing another modified embodiment of the present invention.

[Explanation of symbols]

1 skis 3, 4 binding elements 8, 12 pedestals 15, 35, 45, 55 elongated plate members 15a, 15b, 35b, 55b mounting areas 16, 19, 37, 38, 57 end portions 20, 58 support portions 21, 40, 59 Adhesive layer 25 Elastically compressible material layer 26, 36 Rigid spacer 30, 42 Slotted hole 31, 43 Shoulder washer

Claims (10)

[Claims] 1. A ski intermediate and a front binding element and a rear binding element for holding both ends of a ski boot, said two binding elements being the center of the ski, which is referred to as the skid. In an interface device, each in a region, each of which is connected to a ski through a pedestal, said interface device comprising an elongated strip having front and rear ends of both binding elements connected to a ski. The plate member (15, 35, 55), one end (19, 38, 57) of the plate member is located at a position higher than the surface of the ski, and is elastically deformable along the longitudinal direction (21). , 40, 59) to the ski, and said plate member has mounting areas (156, 356, 55) for integrally receiving a binding element called the first element.
6) near its one end, the device further comprising a rigid spacer (26, 36, 58) located at the bottom of said plate member in the area of the other binding element called the second element. The spacer is supported downward in contact with the upper surface of the ski, and the plate members (15, 35, 55) are maintained in the downward support state with respect to the ski, and the rigid spacer is the first spacer. An interface device ensuring direct transmission of normal stress between the ski member and the ski in the area of the two elements. 2. The rigid spacers (26, 36, 5)
8) is in front of the plate member (15, 35, 55) and under the area of the front binding element (3), and the attachment area (15b, 35b, 55b) of the first element. The interface device according to claim 1, wherein is in a rear portion of the plate member. 3. A front end portion (37) of the plate member (35) is integrally connected to a ski, and a rear end portion (38) of the plate member (35) is located at a position higher than the ski. Via a connection part (40) which is and is elastically deformable,
Interface device according to claim 2, characterized in that it is connected to the ski along its longitudinal direction. 4. The front end (37) of the plate member (35) is sandwiched between the pedestal (8) of the front binding element (3) and the rigid spacer (36). An interface device according to claim 3, characterized in that 5. A rear end (16) of the plate member (15) is integrally connected to a ski; the plate member (1)
The front end (19) of 5) is at a position higher than the upper surface of the ski; the plate member (15) is at the front part thereof,
Having a mounting area (15a) for integrally accommodating the pedestal (8) of the binding element (3); and the rigid spacer (20) being the upper surface of the plate member (15) and ski. An interface device according to claim 2, characterized in that it is located in the lower part of the attachment area (15a) of the front binding element (3) between and. 6. The front end (19) of the plate member (15) is connected to the upper surface of the ski through an adhesive layer (21) elastically deformable against shear stress along the longitudinal direction of the ski. The adhesive layer connects the lower surface of the plate member to the upper surface of a supporting portion (20) integrated with the ski, and the supporting portion (2
Interface device (0) according to claim 5, characterized in that the front end (19) of the plate member is held at a position one step higher than the ski. 7. The support (20) has, near its rear part, an extension forming a spacer (26), on which the plate member (15) is attached to the front fastener. Interface device according to claim 6, characterized in that it rides on the mounting area (15a) of the element (3). 8. The shoulder washer (31, 43), wherein the plate member (15, 35) is at a position higher than the ski by a central portion thereof, and is integrally connected to the ski at the central portion. ) Through which there is at least one elongated hole (30, 42) through which a relative movement of the plate member with respect to the ski upwards and laterally is prevented along the vertical direction. An interface device according to any one of claims 1 to 7, characterized in that 9. The plate member (55) contacts the upper surface of the ski from its rear end to a position beyond the mounting area of the front binding element (3), in which the plate member is It has a front end (57) which is one step higher than the upper surface of the ski, and is connected to the ski through a layer (59) of a material elastically deformable against shear stress along the longitudinal direction. An interface device according to claim 2, characterized in that 10. A layer (25, 45) of elastically compressible material along the vertical direction, said rear binding element (4).
A plate member (1) between the mounting area of the ski and the upper surface of the ski.
5. It is located at the lower part of 35).
Interface device by.