JPH0229278A - Safety clamp for sky - Google Patents

Abstract

PURPOSE: To make a process of attaching a safety binding to a ski significantly easier by keeping the binding at a prescribed position by a supporting member outside the platform of the binding and inside the shaft of a T-shaped groove when the binding is being carried or handled. CONSTITUTION: This binding constitutes a 'front stopper', which has a main body, a box part 2, at the upper part to hold a movable supporting barb 2a at the rear part and has a platform 3 to be attached on a ski with screws at the lower part. The front stopper 1 is securely assembled using a front screw 4 constituting an 'insertion' screw and a rear screw 5. The front screw 4 is held at the front part of the platform 3 using a supporting socket 6 attached to the platform 3. The front screw 4 is inserted in a groove 7 in the longitudinal direction whose vertical cross section is T-shaped formed at the lower front part 3b of the platform 3 when the binding is attached to a ski. The lower horizontal edge part of the dent 7b of the groove 7 is strongly pressed by the head 4a of the front screw 4 with tilting movement around the edge 3d between two faces 3b and 3c, so the front stopper can be tightly held.

Description

[Detailed description of the invention] The present invention relates to a safety binding for skis.

Existing ski safety bindings for holding the front part of a ski boot (front stop) or existing ski safety bindings for holding the rear part of a ski boot (heel guard) generally have a main body or The retaining jaws of the ski boot include a mounting body, the lower part of which is integral with a base for attaching the safety fastener to the ski. This attachment is carried out by screws that pass through holes drilled in the base and are screwed onto the upper surface of the ski.

For the installation of safety fasteners, especially front stops,
Frequently, "recessed" screws are used, ie, screws that are no longer tactile once the binding is attached to the ski. This screw is screwed onto the ski before installation of the fastener.
A "shoulder" screw includes a large diameter head extending through a medium diameter body and a small diameter threaded shank. - Once fully screwed onto the ski, the head of the screw remains at a predetermined height relative to the surface of the ski, this height corresponding to the length of the screw body. This "recessed" screw cooperates with a buttonhole-shaped hole formed in the underside of the fastener's base. This hole is part 2,
That is, it includes a circular portion with a diameter larger than the diameter of the head of the screw to allow the screw to pass therethrough, and a longitudinal slit having the same width as the diameter of the screw body and leading into a circular opening. Installation of safety fasteners maintained with such "set-in" screws requires several work steps. First, the fastener installer must open the fastener packaging box and then locate within the packaging a "recessed" screw that is uniquely shaped to cooperate with the buttonhole-shaped hole. The operator then fully tightens this screw into the advanced hole provided for this purpose in the upper surface of the ski, and then takes the fastener and places it flat on the ski so that the head of the "recessed" screw and Move the fastener by feeling until the circular opening of the buttonhole-shaped hole meets. When the screw and hole are aligned, the operator applies force to the fastener to force the head of the "recessed" screw into the circular buttonhole-shaped opening, then presses the inside of the screw under the head of the screw. The fastener is slid longitudinally so that the body of the screw, which has a diameter of about 100 mm, is inserted into the longitudinal slit of the hole. The operator completes the fastener installation by tightening the other screws provided for the fastener installation.

One embodiment of such a fastener is advantageous in that the "recessed" screw does not require any special adjustments to be made to the top of the fastener; This is accompanied by the inconvenience of having to take it out and screw it in place. Moreover, since loss of this screw can occur, it poses a special problem, given the special shape given to the "recessed" screw to cooperate with the buttonhole-shaped hole.

On the other hand, safety fasteners are known which include means for making it possible to maintain the threads of the fastener in respective holes provided in one seat. A fastener of this type is described, for example, in French Patent No. 2,208,692.

The present invention relates to an improvement made to a safety binding held on a ski by means of a recessed J-screw, with the aim of significantly facilitating the task of attaching the safety binding to the ski.

For this purpose, it comprises a body or body, on which a shoe-retaining jaw is mounted, the lower part of which is integral with a pedestal mounted on the ski by means of screws, said Some of them pass through holes drilled in the pedestal.

and one of the screws constitutes a screw which, after assembly, is fitted through its head into a longitudinal groove having a T-shaped cross section, the groove being formed in the underside of the base and having a screw therein. A ski safety binding which is adapted to be threaded has a groove with a T-shaped cross section leading into the front face of the base located opposite the jaws of the binding, and in which the thread is threaded. , characterized in that the fastener is held in place by a retaining member on the outside of the base and within the axis of the T-shaped groove during transport or handling thereof.

An embodiment of the invention will now be described, by way of non-limiting example, with reference to the accompanying drawings, in which: FIG.

A ski safety binding, indicated generally by the reference numeral 1 in FIG. 1, is for holding the front of a ski boot to the ski.

This binding constitutes a "front stop" comprising in the upper part a body or body 2 carrying at the rear a movable retaining jaw 2a and a lower part a base 3 for mounting on the ski by means of screws.

This base 3 includes a front front face 3a located opposite the retaining jaw 2a. This front surface 3a may be vertical, or may be inclined from below to above or from rear to front as shown in FIG. It includes a front part 3b and a rear part 3c which are inclined to each other to form an upwardly open dihedral at an angle close to 180"'. The two parts, the front part 3b and the rear part 3c,
They are connected by a transverse line 3d that constitutes the edge of the dihedron.

The assembly of the front stop 1 is ensured by a front screw 4 and a rear screw 5, which constitute a "recessed" screw. For this purpose,
The la front stop 1 is delivered in a packaging box with the front screws 4 and rear screws 5 kept in place, as shown in FIG.

The rear screw 5 is, for example, according to French patent no. 2208692.
As described in the specification, it is held in a hole drilled in the base 3 by a deformable holding member of a suitable shape.

The front screw 4 is held in the front of the pedestal 3 using a retaining socket 6 added to the pedestal 3. In addition, the holding socket is advantageously made of plastic material. "
The embedded screw 4 is a shoulder screw with an upper head 4a having a large diameter, a lower body 4b having a smaller diameter than the diameter of the upper head 4a, and a thread having a diameter smaller than the diameter of the lower body 4b. This "embedding" includes the shaft portion 4c which has been given
The screw 4 is fitted into a T-shaped longitudinal groove 7 arranged in the lower front part 3b of the base 3 in vertical cross section when the binding is attached to the ski. This groove 7 communicates with the front face 3a of the pedestal 3, as can be seen more clearly from FIGS. 2 and 3. This groove 7 includes a lower longitudinal slit 7a of width a equal to the diameter of the lower body 4b of the screw 4, above which lower longitudinal slit 7a:
A longitudinal recess 7b having a wider width and extending somewhat rearwardly than the longitudinal lower slit 7a extends.

This hollowed out part 7b has a lower part defined by a longitudinal horizontal edge 2, and the bottom of the T-shaped groove 7, that is, the r head j
form. The width of the upper hollowed out part 7b of the groove 7 is equal to or somewhat larger than the diameter of the head 4a of the embedded screw 4. The front portion 7c close to 3a has a wider width C than the remainder of its length. A portion of the socket 6 that holds the embedded screw 4 in a predetermined position is fitted and held within this front portion 7c. This socket 6 comprises a cylindrical outer front part with a U-shaped horizontal section open to the rear, on the inner surface of this cylindrical front part 6a defined between two balanced internal bulges, and , an upper horizontal groove 6b into which the head 4a of the screw 4 is inserted and held; 6 two rear front surfaces 6c of the socket 6 which are inclined at appropriate angles so as to be able to come into pressure contact with the inclined front surface 3a of the pedestal 3; extend rearward through respective claws 6d that are fitted into the expansion front portion 7c of the upper hollowed out portion of the T-shaped groove 7.

Now, with particular reference to FIGS. 6 to 9, a series of operations performed when attaching the front stop 1 to the upper surface of the ski 8 will be described. The ski 8 is pre-drilled with advanced holes 8a and 8b for tightening the fixing screws 4 and 5 of the front stop 1. The advanced hole 8a for accommodating the embedded screw 4 is connected to the rear screw 5.
It is bored at a distance X from the rear advanced hole 8b for accommodating the. This distance is equal to the distance extending between the rear end of the lower slit 7a of the T-shaped groove 7 and the rear side of the recess of the base 3 that accommodates the screw 5, as shown in FIG.

After the front stopper 1 is taken out of the packaging box, it is placed so that the rear part 3c of the base 3 is flatly pressed against the upper surface of the ski 8. As a result, the front part 3b of the front stop has the sixth
As shown in the figure, it is slightly inclined from the bottom to the top and from the back to the front. The front stop 1 is then in a position with the front screw 4 positioned just above the advanced hole 8a for receiving it.

The second stage of the assembly operation consists of inserting and tightening the screw 4 into the advanced hole 8a with a suitable tool, for example a screwdriver 9. As a result, the head 4a of the screw 4 separates from the holding groove 6b in the socket 6. This release is possible because the socket 6 is made of a relatively resilient material. As shown in FIG.
This is done until the shoulder formed at the connection between c and c comes into contact with the upper surface of the ski. At this position, head 4a of screw 4
are fixed on the upper surface of the ski 8 at a predetermined distance. This distance approximately corresponds to the height of the longitudinal lower slit 7a of the T-shaped groove 7.

The third step in assembling the front stop 1 is to move the stop 1 forward by pressing the lower front surface 3b of the pedestal 3 flat against the ski in advance, as shown in FIG. Become.

By this operation, the entire fastener 1 is slightly tilted forward about the ridge 3d of the dihedral formed by the lower surfaces 3b and 3c of the pedestal 3, and the rear portion of the pedestal 3 is slightly lifted. Due to the forward movement of the stop 1, the screw 4 fits into the T-shaped longitudinal groove 7, the lower body 4b of the screw 4 fits tightly into the lower slit 7a of the groove 7, while the head 4a Fitting into the upper cutout 7b, this forward movement continues until the lower body 4b of the screw 4 comes into contact with the bottom or rear end of the lower slit 7a, in this contact position the rear screw 5 As shown in the figure, since it is equal to the distance
As is clear from the figure, it is located directly above the corresponding advanced hole 8b, which is bored in the upper surface of the ski 8.

The final stage of assembly is to use the screwdriver 9 to tighten the rear screw 5.
is fitted into the advanced hole 8b and tightened. By tightening this rear screw 5, the front stopper 1 is tilted rearward.

As a result, the vertical play between the head 4a of the "set-in" screw 4 and the groove 7 is absorbed. Edge 3 of the dihedrons 3b and 3c
By the tilting movement around d, the upper hollowed out part 7b
The lower horizontal edge of is subjected to a strong pressing force from the head 4a of the embedded screw 4, so that the front stop is held securely.

As shown in FIG. 8, the socket 6 for retaining the screw 4 during transportation and attachment to the ski is pushed back forward as the fastener moves forward, causing the screw 7 to
Separate from. Once the fastener installation is complete, the socket can be easily removed and discarded.

In the variant embodiment shown in FIGS. 10 and 11,
The socket 6 securely holds the screw 4 in a predetermined position by fitting the screw 4 into its advanced hole 8a and tightening it.

It is shaped so that it is automatically discharged to the front outside of the pedestal 3. For this purpose, the front cylindrical part 6a of the retaining socket 6 is sloped from top to bottom and from front to back under the head 4a of the screw 4, which itself bears in the front face 3a of the base 3. It has an inner wall forming an inclined portion 6e. Therefore, the tightening of the screw 4 in the advanced hole 8a, which will move downwards relative to it in the socket 6, will cause the head 4a of the screw 4 to be held longitudinally by the front face 3a of the pedestal 3. Due to the cooperative action between the inclined part 6e and the front surface 3a, the socket 6 is gradually pulled away from the front face 3a. The rear claw 6d is the hollowed out part 7
Since it is virtually completely separated from the front portion 7c of the base 3, it is completely separated from the front face 3a of the pedestal 3.

Although the above description has been directed to a front stop that is held in place using a "recessed" screw 4 by way of non-limiting example, the present invention.

The same applies to heel rests whose front part includes a movable jaw for holding the rear part of the boot. In this case, the T-shaped groove opens to the rear front side of the heel rest seat located opposite the retaining jaws, and its operation is reversed.

[Brief explanation of the drawing]

1 is an elevational view of a front stop according to the invention, partially shown in longitudinal section; FIG. FIG. 2 shows the "recessed" screws removed. FIG. 2 is a perspective view of the front stopper of FIG. 1 seen from the front upper part; FIG. 3 is an inverted front perspective view of the front stopper of FIG. 1; FIG. 4 is an enlarged horizontal sectional view taken along line rV-rV in FIG. 1. FIG. 5 is a perspective view of a socket holding a "buried" screw. 6 to 9 are elevational views, each partially in longitudinal section, of the steps in the installation of the front stop on the ski; FIGS. 10 and 11 are longitudinal sectional views of a variant of the retaining device for the "recessed" screw before and after tightening the "recessed" screw into the ski; FIG. [Explanation of symbols of main parts] 2 ・・・ Main body (national polity) 2a
Holding jaw part 3...
...Pedestal 3a... ・Front front 3b Front part 3c ・Rear part 3d Transverse line (ridge) 4
・ ...Front screw 4a ・ Large diameter head (of the screw) 6
- Holding socket 6a -
・Outer front part 6b...
・・・・・・・・・・・・Top horizontal groove 6c
Rear front 6d, pawl 6e, sloped part 7・・・・・・・・・・・・・・・・・・・・・・・・
・ ・ Long direction groove 7a ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・
...Top surface of skis FIG, 3 FIG, 4

Claims (1)

[Scope of Claims] 1. It includes a main body or casing, on which a shoe-retaining jaw is attached, and the lower part thereof is integral with a pedestal attached to the ski using screws. , some of the screws pass through holes drilled in the base, and one of the screws, after assembly, is fitted through its head into a longitudinal groove having a T-shaped cross section. In the ski safety binding, the groove (7) having a T-shaped cross section constitutes a screw, and the groove is formed in the underside of the base for the screw to pass through. The jaw of the tool (
The front side (3a) of the pedestal (3) located on the opposite side of the pedestal (3a)
), and said screw (4) is connected to the retaining member ( 6) A safety fastener for skis, characterized in that it is held in place by. 2. The holding member (6) of the screw (4) includes a portion (6d) that fits into an end of a T-shaped groove (7) communicating with the front surface (3a) of the pedestal (3). The ski safety binding according to claim 1. 3. The holding member (6) is attached to the front surface (3) of the pedestal (3).
consisting of a socket having a U-shaped horizontal cross section open in the direction of a) and comprising a cylindrical part (6a) in which the large diameter head (4a) of said screw (4) is held; The two front faces (6c) of the holding socket (6) facing the front face (3a) of the pedestal (3) are connected to the cutout (7b) forming the upper part of the T-shaped groove (7). 3. Ski safety binding according to claim 2, characterized in that it extends via a pawl (6d) which is fitted into the enlarged front part (7c). 4. The retaining socket (6) has a cylindrical portion (6)
On the inner surface of a), place the head of the screw (4) of the "recessed" type (
4. Ski safety binding according to claim 3, characterized in that 4a) comprises a horizontal groove (6b) in which it is fitted and retained. 5. The head (4a) of the screw (4) is supported and held against the front surface (3a) of the pedestal (3), and the holding socket (6) is attached to the head (4a) of the screw. When tightening the screw (4) inside the ski (8), the holding socket (6) is inserted from the front (3a) of the pedestal (3).
4. A ski safety binding according to claim 3, characterized in that it comprises an inner wall forming an inclined part (6e) which gradually separates the parts. 6. The T-shaped groove (7) is connected to the longitudinal lower slit (7).
a) and an upper cutout (7b) having a width greater than the width of the slit, the upper cutout (7b) extending over a longer distance than the lower slit (7a). A ski safety binding according to any one of claims 1 to 5. 7. The lower part of the pedestal (3) has a dihedral shape with an obtuse angle of about 180 degrees that opens upward, that is, the front surface (3b) of 1 in which the T-shaped groove (7) is dug; Back (3
c) 2 inclined to each other so as to form a dihedron consisting of
according to any one of claims 1 to 6, characterized in that the two faces are connected to each other along a transverse line (3d) constituting the ridge of the dihedral. Ski safety bindings as described.