JPH0571274B2 - - Google Patents

Abstract

Binding with a front toe unit having a sole-holder for holding a ski boot. The sole-holder has two movable lateral wings which can be adjusted by an adjusting device relative to one another between a maximum open position and a closed position. The wings are moulded onto the front toe unit and are connected to the latter by means of an elastically deformable region. The wings are separated from the rest of the unit by means of a gap. The deformation region serves as a hypothetical axis for the pivoting of the wings in relation to the unit while the distance between the wings is being adjusted.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a safety binding for skis, and more particularly to an adjustable jaw that is adaptable to the shape and dimensions of the front end of the shoe and provides a front stop for the binding. The present invention relates to a fastener having a fastener.

In conventional front stops of this type, the jaws are located at two points of contact between the sole of the boot and two wings that further hold the sole against vertical external forces. It can be of the lateral holding type. The jaw may also be of the type with auxiliary front bearing means, the sole of the boot also having a center point,
Alternatively, it is held in a substantially horizontal plane at a plurality of points disposed proximate the axis of the ski and the axis of the stop.

In the case of two-point lateral retention and/or retention using front support means, the position of the lateral wings can be adjusted to suit the various dimensions, constructions, thicknesses and widths of the different types of shoes suitable for use. You need to configure it in advance so that it can be used.

For example, the stop proposed in French Patent No. 1 438 299 consists of two side arms for holding the sole and one on a body pivotable about the vertical axis of the ski. and a sole front support member. Each of the side arms is hinged about an axis disposed within a cover provided on the stop body. The angular position of each arm can be adjusted independently by a piston moving against a spring force.

Similarly, in the stop described in French Patent Application No. 8308068 with one central bearing means and two lateral wings hinged on the body, the adjustment of the position of the retaining wings is achieved by two lateral wings. Secured by screws. In this case, the screw is rotatably connected to the end of the wing and has an inverted pitch.
Two wing sections can be adjusted simultaneously by actuating just one screw, which greatly simplifies the structure.

Similarly, in the fastener described in French Patent Application No. 2,429,480, which includes two lateral wings and one front support means, the simplification achieved is because of the adaptation of the fastener to the ski boot. This is based on the fact that it is the front support means for the sole that performs the adjustment.

In all of the above cases, even if the desired technical effect is successfully obtained, and despite various attempts at simplification, the number of parts used is large, resulting in high costs and reliability still remains. Such efforts often resulted in fairly complex mechanisms that were inadequate.

The present invention aims to obviate the above-mentioned drawbacks by proposing a fastener (ie a front stop) with or without front bearing means. To this end, in the present invention, the holding device with lateral wings requires only a very limited number of various parts, including the parts for its adjustment, and at the same time provides the required reliability of the results obtained. Guarantee.

BRIEF DESCRIPTION OF THE DRAWINGS The features of the invention and its advantages that are the object of the appended claims will become apparent from the following description and from the accompanying drawings to which reference is made for an understanding thereof.

Figures 1 and 2 show the distance between the lateral retainers corresponding to wide shoes (e.g. "senior class") and narrow shoes (e.g. "junior class") at two points. FIG. 4 shows a top view of the front stop according to the invention for adjustment;

Basically, it can be seen that each part is made of what is now an old type. That is, the hollow body 1 is pivotable about an axis 2 perpendicular to the ski (not shown), maintains its axial position relative to the ski, and allows the external force to reach its limit value in order to take off the shoe. Beyond this, it is provided with conventional elements that allow for pivoting. In particular, the drawing shows a screw stopper 3 for adjusting the threshold and cooperating with a device having, for example, a spring and a piston housed in the body 1, as well as a front bearing device 4.
(For example, the already cited French patent application no.
Similar to that described in specification No. 2495480,
(represented by a dashed circle) is shown. The body 1 carries a jaw consisting of two lateral wings 5 on the left and right, which serve to hold the front edge of the sole 6 of the shoe 7 vertically as well as horizontally. These two directions are indicated by dash-dotted lines.

As already mentioned, the lateral wings 5 should be adjustable in position with respect to each other and with respect to other parts of the body so as to be able to adapt the jaws to different (sized) shoes 7. It won't happen.

According to the invention, the lateral wings 5 do not constitute a separate part from the body 1, but are made integral with the body 1, for example by casting of a plastic material which has good mechanical properties such as stiffness and elastic deformation. is formed into. Most of these lateral wings (on the sides of the shoe 7)
While widening towards the rear and maintaining a complementary shape that can ultimately be practically matched with the remaining parts of the main body 1 and the parts facing the remaining parts of the wings 5. 8 from the rest of the body 1, in which case the central part 9 of the body 1 serves as a stop. The lateral wings 5 have an elastically deformable elongated section 1
0 to the rest of the body 1 only in the direction of the front end of the space 8, and this elongated section 1
0 is located sufficiently towards the front of the aforementioned adjustment device to serve as a vertical support allowing it to operate in an optimal manner.

As can be seen from the above, the elastic deformation area 10 is
The wing section 5 of interest can serve as a virtual pivot relative to the rest of the body 1. This area is therefore suitable for shoes of any width, for example the widest shoe as shown in FIG. 1, or the smallest width shoe as shown in FIG. Make the opening adjustable.

Since the gap 8 can be formed by casting, the wing portion 5
It is clear that the entire body 1 can be cast at locations other than the minimum spacing of the wings 5. It is advantageous for the casting operation to be carried out in an intermediate position, so that the deformation zone 10 can be moved without a particular pivoting direction in response to elastic return forces. However, for reasons of convenience, in conjunction with casting techniques, e.g.
In some cases, it may be better to carry out the casting operation in such a way that the maximum separation position is achieved without the need for external forces from the adjusting device.

Figures 3 and 4 show one embodiment of a device for adjusting the spacing of the side wings 5 that can be used with the structure described above. This device allows the spacing to be adjusted simultaneously with respect to the central portion 9 of the body 1.

A vertical cylindrical hole 11 is arranged on the underside of each wing 5 and in its thickness, into which a cylindrical member 12 is inserted with slight friction. A radial horizontal threaded hole forming a nut 13 is arranged in the cylindrical member 12 near its outer end, with which a screw 14 cooperates. A screw 14 is arranged near one end of the transverse shaft 15, and a similar screw is provided at the opposite end for the other wing section 5. A head 16 of a screw 14 is provided at one end, which enables rotation of the shaft 15 and is accessible from the outside of the main body 1. The two screws 14 carried by the shaft rod 15 are pitched in opposite directions, and the shaft rod 15 cooperates with the central portion 9 of the main body 1 on a plane along the axis 8. , or the shaft rod 1
its translation relative to the body 1 by a transverse retaining shoulder 17 cooperating with the edge of the metal retaining piece 18 of 5 and fixable by a screw 19 on the central part 9 of the body 1; is being prevented.

Without departing from the invention, the shaft 15 may include:
In its intermediate part, a vertical shaft 2 traverses the retaining member 18 and acts as a pivot relative to the central bearing 4.
1 can have a groove 20 co-operating with it.

When the head of the screw 16 is driven to rotate, the shaft rod 15, whose translational movement is prevented, translates the nut 13, which is integral with the cylindrical member 12 and whose rotation is prevented, in mutually opposite directions. According to the direction of rotation of the axle 15, the cylindrical members 12 move away from and towards each other symmetrically along the axle 15, so that the lateral wings around the imaginary axis, which is the deformable area 10, Part 5
to pivot them away from or toward each other.

During this movement, in order to avoid deflection of the shaft 15 or undesirable deformation of the wings 5, the cylindrical members 12 move around their respective axes in the holes 11 of the side wings 5. Must be able to rotate slightly. This relative minute rotation is ensured by pushing and fitting the cylindrical member 12 into the cylindrical hole 11, as described in detail above.

Furthermore, during this movement, the axle 15 tends to undergo a slight translational movement along the longitudinal axis of the body 1. This movement is prevented by securely fixing the shaft 15 to the main body 1. therefore,
It is each wing section 5 that elastically absorbs the deformation that occurs in response to movement, more specifically, the deformation that occurs in the flexible region 10. In order to minimize such deformation in certain troublesome situations, it is necessary that the axis of the cylinder member 12 at the intermediate position of the spacing of the wings 5 be aligned with the intermediate vertical axis of the corresponding deformable area 10 (i.e. Preferably, the lateral wings 5 are aligned so that they lie in a vertical plane parallel to the plane of longitudinal symmetry of the body 1 passing through the imaginary pivot axis.

Particularly for ski boots of a specific shape, it is desirable that the two lateral wings 5 be able to be adjusted independently of each other. Figures 5 and 6 show by way of example two variant embodiments of the invention that make this possible.

In the stopper shown in FIG. 5, the main body 1 and the side wings 5 are cast in an intermediate open position of the wings. This is the aspect as already described and as shown by the solid line in this figure. The parts that differ from those described above are as follows.

Instead of the axle 15, it is arranged in the central part 9 of the body 1 or is integral with the central part 9,
Two individual coaxial horizontal screws 14 are provided which cooperate with a common threaded hole arranged in the fitting and forming the fixing nut. The threaded portion of the screw 14 is the same as described above, but is unthreaded and is mounted within the side wing 5 and is otherwise similar to the previously described cylinder member. It extends outwardly via an axle 15 freely transverse to the member 12 and terminates in a head 16 accessible from the outside of the body 1 .

The effect of this embodiment is obvious as follows. That is, as the screw 14 leaves the intermediate position of the side wings 5, the screw 14 continues to move forward until it abuts the central portion 9, similar to the opening movement to reach the maximum position of the wings 5 indicated by the dashed line. They can operate independently of each other to close them.

In a device corresponding to the configuration shown in FIG. 6 and in the maximum open position of the wing 5 (indicated by dash-dotted lines), the separate screw 14 operates only in the closing direction. The aforementioned cylindrical member 12 has been removed, and
The cap-shaped head of the screw 16 cooperates with a seat 200 arranged in the wing 5 in question. Moving away from the maximum open position, the threaded joint always acts against the elasticity of the deformable area 10 of the wing 5 towards the fully closed position. On the contrary, even if the threaded joint is removed, the wing portion 5 is not positively moved backward. What induces this movement and keeps the seat 200 in contact with the head of the corresponding screw 16 is nothing but the elasticity of the deformable region 10.

It is clear that what has been said regarding the vertical axis position of the tube member 12 with respect to the deformable area 10 also applies by analogy to the vertical axis of the spherical surface during operation.

As is clear from the above, the descriptions made so far and the descriptions related to the preferred embodiments have been made with respect to the type of jaw that includes the front support device. However, the invention can also be used with simple lateral retention jaws.

Moreover, the invention represents in all cases a significant advance in the manufacture of the parts as well as in the simplification of their assembly. This is evident from the outstanding economy and reliability achieved.

The embodiments described above propose a jaw that holds the front end of the shoe through the sole;
It may be completely different without departing from the scope of the present invention. In fact, the jaw can hold the shoe by means of an axle or an entirely separate member.

[Brief explanation of drawings]

FIG. 1 is a top view of the fastener of the present invention with lateral wings adjusted for wide shoes; FIG. FIG. 2 is a top view similar to FIG. 1 but showing the fastener of the invention adjusted for narrow shoes; FIG.
FIG. 3 is a partially sectional bottom view of the stopper taken along line - in the figure; FIG. 4 is a cross-sectional view of the fastener taken along the line - in FIG. 3; FIGS. 5 and 6 are bottom views of different embodiments of the fastener according to the invention. [Explanation of symbols of main parts] 1... Stopper main body, 5... Lateral wings, 6... Sole, 8... Between,
10... Elongated area, 11... Vertical cylindrical hole, 12
... Cylinder member, 13 ... Nut, 14, 16, 19
... screw, 15 ... transverse axis, 17 ... shoulder,
18... Horizontal holding member, 20... Groove.

Claims (1)

[Scope of Claims] 1. A stopper body 1; a jaw for holding ski boots 6, 7; and 2. lateral wings that are movable and adjustable relative to each other between a maximum open position and a closed position. 5, 5 and; an adjusting device 11 for adjusting opening and closing of the side wing portions;
- 20, the stop main body 1 and the side wings 5, 5 are formed by casting a plastic material having good rigidity and elasticity so that the elastically deformable areas 10 of the wings are formed. the lateral wings are integrally molded with each other, and the lateral wings, excluding the deformable area 10 thereof, extend from the deformable area towards the rear of the stop body; 1. A safety binding for skis, characterized in that it is spaced apart from 1. 2. Claim 1, characterized in that the entire body formed by the stopper body 1 and the side wings 5, 5 is integrally molded with the side wings in the intermediate closed position. Fasteners as described in . 3. Claim 1, characterized in that the entire body formed by the stopper body 1 and the side wings 5, 5 is integrally molded with the side wings in its maximum open position. Fasteners as described in Section. 4. The adjustment devices 11 to 20 have two nuts 13 integral with each of the cylindrical members 12, which are fitted in the holes 11 provided in each of the side wings 5, 5 so as to rotate with slight friction. A transverse shaft rod 1 which is a carrier for the two screws 14 of the feed pitch, each cooperating with the other.
5, and one end of the shaft carries a head 16 accessible from the outside of the stop body 1 to induce rotation. The fastener described in any one of 1. 5. The axle 15 is prevented from translational movement by shoulders 17, 17 cooperating with the central part 9 of the stop body 1 or with a part 18 integral therewith. Fasteners as described in paragraph 4. 6. A fastener according to claim 4 or 5, characterized in that the shaft rod 15 is fixed to the central part 9 of the fastener body 1 by one holding member 18. 7. The adjustment devices 11 to 20 are connected to a common threaded hole 1 provided in the central portion 9 of the stopper body 1.
It comprises two transversely coaxial shaft rods 15 which are carriers for respective screws 14 cooperating with the screws 3, each of said two shaft rods being provided on each of said side wings 5,5. It is characterized in that it freely traverses the cylindrical member 12 fitted in the hole 11 so as to rotate with slight friction, and that it terminates in a head 16 which is accessible from the outside of the stop body in order to induce rotation. A fastener according to any one of claims 1 to 3. 8 The adjustment devices 11 to 20 are connected to a common threaded hole 1 provided in the central portion 9 of the stopper body 1.
It comprises two transversely coaxial axles 15 which are carriers for respective screws 14 cooperating with 3, each of said two axes 15 freely traversing each of said lateral wings 5 and , a spherical crown head 1 cooperating with a spherical seat 200 provided on the outside of each said lateral wing 5
Fastener according to claim 7, characterized in that the head (16) is accessible from the outside of the fastener body (1) in order to induce rotation. . 9. Claims 1 to 8 further include front support means 4 for the shoes 6, 7.
The fastener described in any one of paragraphs.