EP0117464B1 - Safety ski binding - Google Patents

Description

The invention relates to a safety ski binding, in particular a heel holder, with a sole holder which can be pivoted on a bearing block which can be fastened to a base plate about a transverse axis mounted on the bearing block, which is under the action of an opening spring acting on it in its open position and which is pivoted in by a latching rocker pivotably mounted on the sole holder the downhill position is held, which has a locking projection on one side, which in the downhill position engages under a control cam part arranged on the bearing block and is provided on the other side with a locking pan, into which a web loaded by at least one opening spring engages at least in the downhill position, which is mounted in a spring housing which can be pivoted on the bearing block and is displaceable to a limited extent, a release lever mounted on the sole holder being provided for the arbitrary opening of the sole holder, said release lever providing the release lever with the spring housing coupling bolt carries.

Such a safety ski binding is known from a product on the market and has proven itself very well in practice for several years. In this heel holder, the sole holder and the spring housing are pivotably mounted on a common axis provided on the rear area of the bearing block. If the sole holder is opened arbitrarily by pulling the release lever, the engagement of the web is released from the locking pan of the locking rocker, which frees it from the bearing block-fixed control curve part and the sole holder can pivot up freely about its pivot axis. After an arbitrary opening of the sole holder, however, the heel holder is not in the ready-for-entry position. An additional handle is required to reinsert the ski boot or close the sole holder. For example, the release lever is first closed by exerting a force so that the web snaps back into the locking pan of the locking rocker, whereupon the sole holder can then be closed by pressing it down. However, it is also possible first to close the sole holder, for example by inserting the ski boot, and only then to push the release lever into its closed position and thus to press the web into the locking pan of the locking rocker.

In the case of the safety ski binding described in AT-B-369.282 (see in particular FIGS. 9 to 13), the sole holder is pivotably mounted on an axis which is separate from the pivot axis of the spring housing and which is arranged on the upper region of the bearing block. In the downward position of the safety ski binding, a locking rocker pivotally mounted on the sole holder engages under a locking lug formed on the bearing block. The locking rocker is acted upon by a spring-loaded web which is mounted in the spring housing. The latching rocker is designed to be divided almost over its entire area, a pawl being accommodated between the two parts of the latching rocker, which is also mounted on the axis provided for the pivotable mounting of the latching rocker. The pawl carries an actuation extension which is acted upon by a weak spring. The lower area of the pawl forms a locking pan for the spring-loaded web with the locking rocker. To open the sole holder, the actuating shoulder of the pawl is pressed down against the force of the weak spring, so that the web is released and the spring housing, supported by a leg spring, can pivot up. The sole holder can now swivel up freely together with the locking rocker, the now released latch catches the web again, so that the binding is in the ready-to-go position. To close the heel holder, the sole holder must be swung down against the force of the release spring; there is no possibility of closing the sole holder with less effort with this heel holder.

AT-B-369.661 also shows a similar embodiment, in which the sole holder and the release lever can be pivoted about a common axis mounted in the upper region of the bearing block, the spring housing, as described above, by one in the lower and rear region of the Bearing bracket provided pivot axis can be pivoted. In this embodiment, the release lever is coupled to the spring housing by means of a bolt, so that the arbitrary release takes place by swiveling the release lever up, with this known type of binding causing a slight arbitrary release by changing the relative position between the web and the locking rocker. Since the change of the relative position according to the known solution requires the arrangement of a row of teeth on the web, which either grooves or teeth oppose on the locking rocker, the design of this type of connection is relatively complex and prone to failure. Furthermore, in order to change the relative position, either the locking rocker must be adjustable transversely to the longitudinal axis of the binding or the spring housing in the direction of its axis of rotation. This configuration also requires increased effort in construction, so that the disadvantages mentioned have hitherto stood in the way of the practical use of this type of binding.

A solution is known from CH-A-500.730 (FIGS. 1 to 4), in which the release spring is arranged in an opening lever formed as a U-shaped component in plan view. In this case, the opening lever and spring housing are identical components which can be pivoted about a common transverse axis mounted in the bearing block. The locking arm is also mounted on the pedestal. so that it can only perform a pivoting movement, but not a vertical movement, during a release process. The sole holder itself is one more, too transverse axis mounted in the bearing block can be pivoted.

This configuration results in the mode of action that the trigger spring has to be compressed to the same extent during an arbitrary triggering process as is the case in the case of an involuntary triggering process. The locking rocker thus remains permanently under the action of the release spring, so that the sole holder is spring-loaded with the heel of the shoe during the entire disembarkation. It is therefore not possible to get out easily with this known solution.

The known solution in the form of a tension spring discloses the use of a return spring which, after releasing the release lever, which also fulfills the function of the spring housing, brings it back into engagement with the locking rocker. This resetting is possible in the known construction due to the fact that the release spring is not relaxed in any position of the release lever or the spring housing; rather, for design reasons, it is continuously pretensioned during an arbitrary release. Also getting back into the binding with the ski boot requires overcoming the release spring located in the now biased position in the locking pan of the locking rocker.

The invention is therefore based on the object of designing a safety ski binding of the type mentioned at the outset in such a way that it is in the ready-for-entry position after an arbitrary opening, and the possibility should also exist of closing the sole holder again with little effort.

According to the invention, the object is achieved in that a stop is provided on a part of the heel holder fixed to the bearing block, with which, viewed in the phase of arbitrary release, the stop is released from the locking pan of the locking rocker and the sole holder is in a position between is in its closed and open position, the spring housing abuts or rests with a support area, so that in the subsequent phase of the arbitrary opening between the sole holder and the spring housing, there is a relative pivoting movement.

As a result of the measures according to the invention, the heel holder automatically comes into its ready-to-go position when the sole holder is opened by actuating the release lever. Since the spring housing is limited in its pivoting movement by the stop relative to the sole holder, the locking rocker is guaranteed to pivot away from the web to an extent that allows the web to be reinserted into the locking pan of the locking rocker without actuating the release spring, i.e. practically powerless, enables. The heel holder can be closed by simply swiveling the sole holder down. However, it can also be closed by hand with much less effort. For this purpose, the web is removed again from the locking pan of the locking rocker by swiveling the release lever up, by swiveling down the sole holder and then pressing the release lever down, the heel holder comes into its closed position. The heel holder therefore has all the advantages of the well-known and proven binding, but in addition the ease of use is significantly improved.

A particularly advantageous and simple embodiment of the invention consists in that the stop is formed by the pivot axis of the sole holder mounted in the bearing block. This eliminates the need to use a separate component as a stop and this on a fixed area of the heel holder, e.g. on the bearing block.

Another feature of the invention is that the support area on the spring housing is provided on its cover, and that this area is preferably designed to be resilient. In this way, the spring housing can be converted to the configuration for the counterstop without significant changes to the heel holder. Furthermore, the possibility of accommodating and arranging an additional spring which favors the resetting of the spring housing is created.

A preferred embodiment of the invention is that the support area of the spring housing is designed as a resilient tongue pointing into the interior of the binding, for example as a leaf spring. In this embodiment, the accommodation and arrangement of the support area designed as a spring on the spring housing is particularly simple. Furthermore, this spring is only pretensioned after that pivoting movement of the spring housing when it rests against the stop. The spring is thus relaxed in the travel position, during an involuntary release and also in the first phase of an arbitrary release, so that its force does not have to be overcome.

The invention also relates to a further simplification of the solutions described above. In particular, the designer should be given a greater choice with regard to the design in the inner area of the heel holder and greater tolerances with regard to the design and arrangement between the stop and the support area of the cover.

The object is achieved according to the invention in that the stop is either formed by the rear free end region of the base plate or the holding plate of the bearing block or is provided on one of these plates, and in that the support region of the spring housing is formed by a protruding projection of the rear, also the end region of the cover, which is coupled to the release lever and covers the spring housing, is formed.

These measures simplify the design, which also results in technological advantages in production. Furthermore, a simpler dimensioning of these areas is possible Lich. Slightly larger tolerances are also permissible without having to accept losses in the mode of operation. The heel holder can be converted to the design for the stop without significant changes and particularly easily. There is also the possibility of accommodating and arranging an additional spring which favors the resetting of the spring housing, this spring being easily exchangeable. As a result, the spring characteristics can be changed if necessary, or a broken spring can be easily replaced.

A preferred embodiment of this further development is that the stop springs at the end region of the base plate or the bearing block, e.g. with the interposition of a spring, is supported and is preferably slidably guided at this end region. In this embodiment, the accommodation and arrangement of the spring-loaded stop or its spring is particularly simple. Furthermore, this spring is only pretensioned after that pivoting movement of the spring housing when it rests against the stop. The spring is thus relaxed in the travel position, during an involuntary release and also in the first phase of an arbitrary release, so that its force does not have to be overcome.

According to another feature of the invention, the stop can be formed in one piece with the base plate or with the holding plate of the bearing block. This measure is favorable for manufacturing reasons. However, it will be used in particular if, according to another feature of the invention, the extension of the cover is resilient, e.g. is supported on the bearing block-fixed stop by means of a rubber or plastic spring.

The resilient tongue provided on the cover or the resilient support of the extension can now be made according to the invention with the cover from one part. These measures bring additional manufacturing advantages.

A further development of the invention is that the axis carrying the latching rocker is mounted in two oblong holes running concentrically to the pivot axis of the sole holder on the side walls of the release lever, that the release lever is supported from above on the pivot axis of the sole holder, and that the sole holder for the bolt attached to the release lever each has an exemption in the form of a recess. These measures according to the invention result in the possibility of opening the heel holder arbitrarily both by pressing on and by pulling the release lever. In the case of a pull opening, the axis carrying the locking rocker acts as the pivot axis of the release lever; in the case of a pressure opening, the pivot axis of the sole holder also acts as the pivot axis for the release lever, in which case the relative movement between the axis carrying the locking rocker and the release lever through the two elongated holes in the release lever is made possible. In both cases, the heel holder is in the ready-to-go position after an arbitrary opening.

In this embodiment of the invention, it is advantageous if the support areas of the release lever on the pivot axis of the sole holder are rounded according to the radius of the same. This results in a favorable distribution of forces in a pressure opening.

In order to be able to close the sole holder from its open position with little effort in this embodiment, it is provided according to a further feature of the invention that the pivoting range determined by the two elongated holes in the release lever thereof can be deactivated by means of an arbitrarily actuated lock. This makes it possible, with an effective lock, to close the heel holder with little effort, as has already been mentioned.

This lock can now, according to the invention, be formed by a spring-loaded slide which is displaceably mounted on the release lever in the longitudinal direction thereof and which has on one end a manually detectable actuating shoulder and on the other hand at least one hook-shaped gripping element which, by actuating the slide, encompasses the axis of the latching rocker.

Another lock that can be easily accommodated can be formed by a spring-loaded slide that is displaceably mounted on the release lever in the longitudinal direction thereof, one end has a manually detectable actuation shoulder and another is fork-shaped and carries two support elements that run to the side of the locking rocker and by actuating the slide can be brought under the axis of the locking rocker and support it from below.

It is also essential to the invention that the force of the resilient stop e.g. the spring thereof, or the spring provided on the sole holder and acting on the locking rocker, e.g. the leg spring, or the force of the resilient support region of the spring housing, such as. B. the resilient tongue, the leaf spring, the resilient extension of the cover or the spring is less, preferably substantially less, than the force of the opening spring acting on the sole holder. This ensures the desired resetting of the spring housing without swiveling up the sole holder and thus the release of the ski boot.

Further features, advantages and details of the invention will now be described in more detail with reference to the drawing, which shows several exemplary embodiments of a safety ski binding according to the invention. 1 to 4 show a first exemplary embodiment of a safety ski binding according to the invention, with FIG. 1 a side view in section in the driving position, FIG. 2 a position during an arbitrary opening likewise in side view in section, FIG. 3 the open position of the Binding after done arbitrary opening or after a safety release, and FIG. 4 is a position for arbitrary closing with little effort, FIGS. 5 to 7 show a second embodiment of a safety ski binding according to the invention, these figures being in sequence essentially from FIGS. 1 -3 of the 8 correspond to the first exemplary embodiment, FIG. 8 shows a third exemplary embodiment in a position approximately corresponding to FIG. 2, FIGS. 9 and 10 show a fourth exemplary embodiment similar to FIGS. 6 and 7, but only with regard to the details which have been modified relative to these and FIG. 11 and 12 each another embodiment in a position analogous to FIG. 1.

The safety ski binding according to FIGS. 1 to 4 is designed as a heel holder designated in its entirety with 1. The heel holder 1 has a guide rail 3 fastened on the upper side of a ski 2 by means of (not shown) screws, on which a base plate 4 of the heel holder 1 is displaceably guided in the longitudinal direction of the ski 2 and in a known manner to adapt the binding to different long ski boots can be locked in the desired position. The heel holder 1 is displaceably guided on the guide rail 3 against the force of at least one thrust spring (not shown), the thrust spring being supported on one side in a manner known per se and on the other hand on the base plate 4 of the heel holder 1. On the base plate 4, a housing-like bearing block 5 is fastened, which carries in its upper region a pivot axis 7, which is designed as a bolt and runs transversely to the longitudinal direction of the ski and on which a sole holder 6 is pivotably mounted. The sole holder 6 carries on its upper region on a further axis 8, which is parallel to the first-mentioned axis and is formed by a bolt, a likewise pivotable latching rocker 9, which extends essentially downward and has a latching projection 9a at its lower end region, which in the Downhill position of the heel holder 1 according to FIG. 1 engages under a control cam part 10 fastened to the front wall of the housing-like bearing block 5.

At the rear end region of the bearing block 5 there is a further axis 11, which also runs transversely to the longitudinal direction of the ski and is provided for the pivotable mounting of a spring housing 12 located within the side walls of the bearing block 5. The approximately U-shaped spring housing 12, viewed in plan view, has longitudinal guides 12a for a web 13 on its two side cheeks. The web 13, which extends essentially transversely to the longitudinal direction of the ski, is wedge-shaped at one end and has a flange-like extension on its area facing away from the wedge-shaped area, on which a spring plate 14 is seated, on which one end of at least one release spring 15 is supported. The second end of the release spring 15 is supported on a spring abutment 16 which can be adjusted in a manner known per se in the axial direction of the release spring 15 by means of a screw 17 rotatably mounted in the spring housing 12.

The locking rocker 9 forms a locking pan 9b for the web 13, in which it is pressed under the action of the release spring 15. Following the locking pan 9b, an opening in the form of a recess 9c is formed on the locking rocker 9, into which the web 13 snaps briefly during actuation of a release lever 18 during an arbitrary opening of the sole holder in a manner to be described.

The release lever 18, which laterally overlaps the sole holder 6, is articulated on the axis 8 arranged on the sole holder 6, on which axis 8 the latching rocker 9 is also pivotably mounted. A bolt 19 fastened to the release lever 18 parallel to the axis 8 passes through both the side walls of the sole holder 6 and the side cheeks of the spring housing 12. The bolt 19 passes through the elongated holes 6b provided on the sole holder 6 and extending one at a lug-like extension each to the axis 8 of the spring housing 12 provided approximately arcuate link guide 12b.

The cam part 10 cooperating with the locking rocker 9, viewed from the top of the ski, initially forms a control surface 10a which represents the area of the control cam part 10 which is engaged by the locking projection 9a of the locking rocker 9 in the downward position of the heel holder 1. The control surface 10a of the control curve part 10 determines the elasticity range of the heel holder 1 and merges via a bend determining the trigger point into a section 10b pointing away from the upper side of the ski, which at its upper end area has a latching area 10c inclined towards the sole holder 6.

The sole holder 6 is under the action of an opening spring 20 which acts on it in the opening direction and is designed as a leg spring and which is seated in a recess at the upper end region of the control cam part 10, is supported at one end on the sole holder 6 and at the other end on the bearing block 5. A stop for the pivoting-up movement of the sole holder 6 is formed by at least one offset 22 of the bearing block 5, against which an attachment 6c attached to the sole holder 6 strikes when the sole holder 6 is pivoted up.

A housing-like cover 23, preferably made of plastic, is pushed over the rear end region of the spring housing 12 and firmly connected, for example riveted, to the spring housing 12. The cover 23 thus pivots together with the spring housing 12. The cover 23 is equipped with a window provided with a scale, which is provided for displaying the set spring preload. Since this training is known per se, the window is not shown separately in the drawing figures.

The area of the cover made of plastic covering the spring housing 12 from above Kung 23 is provided with an extension beyond its end area facing the locking rocker 9. This extension is formed by a slightly curved, a few millimeters wide resilient tongue 23a. The resilient tongue 23a is in the downward position of the heel holder according to FIG. 1 at a distance from the pivot axis 7 of the sole holder 6 and in the region below this pivot axis 7.

The mode of operation of the heel holder 1 in question is as follows: If a force is exerted on the sole holder 6 by a ski boot (not shown) inserted into the binding, the sole holder 6 pivots upward about its pivot axis 7. During this pivoting movement, the latching rocker 9 slides along the control surface 10a of the bearing block-fixed control cam part 10 and presses the web 13 back against the force of the release spring 15 in the longitudinal guides 12a of the spring housing 12. The spring housing 12 also pivots about its axis 11 due to the detent rocker 9, which swings up together with the sole holder 6, under the action of the release spring 15. As soon as the locking projection 9a of the locking rocker 9 has exceeded the trigger point of the control cam part 10, which is equivalent to exceeding the elastic range, the sole holder 6 pivots supported by the opening spring 20 into its open position, in which the locking projection 9a of the locking rocker 9 rests on the locking area 1 Oc of the control cam part 10 . In this way, the release spring 15 can relax until the web 13 strikes the end regions of the longitudinal guides 12a of the spring housing 12 facing the locking rocker 9.

The binding is now in its ready-to-go position, which is shown in FIG. 3. The binding is closed from this position by inserting a ski boot simply by depressing the sole holder 6 into the position shown in FIG. 1.

If the heel holder 1 is now to be opened by hand, the release lever 18 is pivoted upward, for example by hand, in the direction of the arrow F ″ shown in FIG. 1, through the oblong holes 6b of the sole holder 6 which run concentrically to the axis 8 The spring housing 12 is also pivoted upward about the pin 19, the web 13 being released against the force of the release spring 15 from the locking pan 9b of the locking rocker 9. This release is ensured by the wedge surface of the web 13 sliding along the upper locking pan boundary. After releasing the release lever 18, the web 13 is pressed forward under the action of the release spring 15 in the longitudinal guides 12a of the spring housing 12 until it strikes the end regions of the two longitudinal guides 12a. This movement process is supported by the correspondingly dimensioned recess 9c adjoining the locking socket 9b enables the locking rocker 9. The locking rocker 9 can 3 so far away from the control curve part 10 that during the subsequent upward movement of the sole holder 6 under the action of the opening spring 20 according to FIG. 3, the locking projection 9a can pass the control curve part 10 upwards.

The actuation of the release lever 18 and the subsequent, automatic swiveling up of the sole holder 6 now reveals the following phases of the arbitrary release.

In the first phase, the release lever 18 is opened and pulled up, the web 13 being released from the locking rocker, so that the sole holder also lifts somewhat from its closed position and the overall position shown in FIG. 2 is assumed. As can further be seen from FIG. 2, the resilient tongue 23a of the cover 23 is in contact with the pivot axis 7 of the sole holder 6. The tongue 23a is preloaded somewhat, as a comparison of this component in the position according to FIG. 1 or FIG. 2 shows.

In the next third phase of arbitrary opening, which has not been shown separately, the bolt 19 reaches its highest position in the two elongated holes 6b of the sole holder 6, the resilient tongue 23a being fully tensioned, the sole holder 6 being pivoted higher and the latching rocker 9 also has a higher, but not yet the highest, position with its locking projection 9a on the control cam part 10.

In the fourth phase of the arbitrary opening, the sole holder 6 is in its fully open position, as shown in FIG. 3, under the action of the opening spring 20. During the pivoting up of the sole holder 6 in this position, the locking rocker 9 is in its highest position and the spring housing 12 is pressed down by the force of the relaxing resilient tongue 23a of the cover 23, so that the web 13 again in the locking pan 9b Locking arm 9 can reach. This pivoting back of the spring housing 12 can of course only take place when the release lever 18 has been released by the skier and it swings back about the bolt 19 into its closed position, as illustrated in FIG. 3. The heel holder is now ready to step on.

The dimensioning of the components interacting with one another, such as in particular the course of section 1 whether of the control cam part 10, allows the movement sequences just described. In the open position of the heel holder 1 according to FIG. 3, the locking projection 9a of the locking rocker 9 rests on the locking area 1 Oc of the bearing block-fixed control curve part 10. The exemption created in this way is essential to the invention, because the web 13 can only be rendered weak again by this free space, i.e. without actuation of the release spring 15, can reach the locking pan 9b of the locking rocker 9.

After an arbitrary opening, the heel holder is, as described, ready to step in and can be closed by inserting the ski boot in the sole holder 6. Also a The sole holder 6 can be closed by hand by pressing it down, but a relatively large force must be overcome. However, it is also possible to bring the heel holder into its closed position with much less effort. For this purpose, starting from the position shown in FIG. 4, the release lever 18 is pivoted up until the web 13 again comes out of the locking pan 9b of the locking rocker 9. As shown in FIG. 4, this actuation only takes place against the low force of the resilient tongue 23a. The sole holder 6 is then brought into its closed position by hand, with only the release spring having to overcome the small force of the opening spring 20 being overcome. By means of the release lever 18, which is now pivoted, for example, by hand in the closing direction, the web 13 in turn engages in the latching pan 9b of the latching rocker 9, the release spring 15 being slightly compressed during this actuation. In this way, the heel holder can be brought into its closed position by hand with less effort. This procedure will be chosen especially if the heel holder is to be closed for the transport of the skis. This procedure for closing the heel holder is also advantageous for the binding fitter when adapting the binding to the ski boot length.

The embodiment according to FIGS. 5 to 7 differs from that according to FIGS. 1-4 primarily in that the sole holder 106 is mounted on a transverse axis 111 provided in the rear area of the bearing block 5. In this case, too, the transverse axis 111 supports the spring housing 112. As a result of this arrangement, however, the bolt 19 penetrates on the one hand on the sole holder 106 scenery-like releases 106b, the areas adjacent to the release lever 18 of which extend concentrically to the axis 8, and on the other hand one each Elongated hole 112b each provided with a tab-like extension of the spring housing 112. Furthermore, there is no need here to use a locking area 10c on the control cam part 10 which is inclined toward the sole holder 106.

The area of the cover 23 made of plastic, which covers the spring housing 112 from behind, is provided with an extension 33 facing the base plate 4 or the holding plate 5a of the bearing block 5 beyond its end area. In this case, the holding plate 5a of the bearing block 5 has a stop 34 at its end region which is extended towards the rear. 5 shows, the end region of the holding plate 5a itself can be designed or effective as a stop. In the driving position of the heel holder 101, the end region of the extension 33 of the cover 23 is at a distance from the stop 34 of the holding plate 5a.

The mode of operation of the heel holder 101 in question corresponds to the one already described in the event of an involuntary opening.

If the heel holder 101 is now to be opened by hand, the release lever 18 is again pivoted up in the direction of the arrow F shown in FIG. 5, for example by hand, with the release of the locking rocker 9 and the web 13 in a manner such as already described is going on. The actuation of the release lever 18 and the subsequent, automatic swiveling up of the sole holder 6 reveals the following phases of the arbitrary release in this embodiment, two of which are shown in FIGS. 6 and 7.

In the first phase, the release lever 18 is opened and pulled up, the web 13 being released from the latching pan 9b of the latching rocker 9, so that the latching projection 9a thereof can leave the control surface 10a of the control cam part 10 without resistance. After the user has finished this manipulation, he releases the release lever 18 so that it can pivot back about its axis 8 into its closed position. This position of the release lever 18 is illustrated in FIG. 7, it being noted that this figure illustrates a position of the entire heel holder 1 to be discussed later.

6 shows that position of the arbitrary opening in which the release lever 18 is still held by the user, but the locking rocker 9 has released the sole holder 106 so that it can swing up from its closed position under the action of the opening spring 20. He takes the locking rocker 9 upwards by means of the axis 8, wherein the locking rocker 9 in turn pivots the spring housing 112 through the pending web 13. 6 shows an intermediate layer before the sole holder 106 would have reached its highest position. In this case, however, the extension 33 of the cover 23 is in contact with the stop 34 of the holding plate 5a, so that the spring housing 112 is blocked against further pivoting. Only the sole holder 106 can swivel up further under the action of the opening spring 20 and thereby also take the locking rocker 9 upwards.

In the next third phase of opening, which has not been shown separately, the bolt 19 reaches its end position in the two elongated holes 112b of the spring housing 112, with both the sole holder 106 and its locking rocker 9 having reached their highest position. The distance (space) between the web 13 and the section 1 whether the control curve part 10 exists or arises ensures that the latching rocker 9 slides easily and unhindered.

In the fourth phase of arbitrary opening, as shown in FIG. 7, the latching rocker 9 has reached the position in which the web 13 is again in the latching pan 9b of the latching rocker 9 due to the further pivoting of the sole holder 106 described above, ie the locking rocker 9 is pivoted back and supported on the web 13 in a position suitable for re-boarding with the ski boot. The release lever) 18 is pivoted back into its closed position. By pressing down with The heel holder 101 can be closed from the heel of the ski boot on the spur of the sole holder 106, as has already been described on the occasion of an involuntary solution, and the position shown in FIG. 5 can be brought.

The dimensioning of the components interacting with one another, such as in particular the course of section 10b of the control cam part 10, also permits the movement sequences just described in this case. In the open position of the heel holder 101 in which the sole holder 106 is pivoted all the way up, the latching projection 9a of the latching rocker 9 can deflect forward in the direction of the free end region of section 1 whether the bearing block-fixed control curve part 10 in order to allow the web 13 to re-enter the latching pan To grant 9b the locking rocker 9, the upper limit of this locking pan 9b must be overcome. The exemption created in this way is essential to the invention, because the web 13 can only be rendered weak again by this free space, i.e. without actuation of the release spring 15, can reach the locking pan 9b of the locking rocker 9.

FIG. 8 shows a modification of the embodiment of a heel holder 201 according to FIGS. 5 to 7, as on the axis 8 a further, light spring 8a is provided which acts on the locking rocker 9 in the direction of the spring housing 12. The spring 8a is supported with one of its legs on the sole holder 106 and with its other leg directly on the locking rocker 9. In an advantageous manner and essential to the invention, it is arranged in such a way that it is preloaded by pivoting the locking rocker 9 when the sole holder 106 is pivoted upwards and after the web 13 of the spring housing 112 has been displaced forward. As a result, the spring 8a causes the locking rocker 9 to be urged towards the web 13 by the further pivoting of the sole holder 106, as a result of which the limitation of the locking pan 9b of the locking rocker 9 is overcome. This prevents icing in the area of the control curve part 10 from causing the locking rocker 9 to get stuck here and the engagement between the web 13 and the locking pan 9b of the locking rocker 9 that would be necessary for the ski boot to be ready for boarding.

FIGS. 9 and 10 show a fourth embodiment of a heel holder 301, but only its areas facing away. As can be seen from FIGS. 9 and 10, the stop 134 is supported with the interposition of a spring 35 on the rear end region of the holding plate 105a of the bearing block 105. This end region of the holding plate 105a is designed as a kind of sliding guide for the stop 134. The extension 33 of the cover 23 in its position shown in FIG. 9 abuts the stop 134 and has already pushed it forward somewhat against the force of the spring 35, so that this position of the heel holder 301, which is only partially shown, approximately corresponds to FIG. 6 of the corresponds to the preceding exemplary embodiment with the difference that the spring housing 112 has not yet reached its highest position. 10, the spring housing 112 has already reached its highest position. This position corresponds approximately to the position according to FIG. 7. The further structure and the mode of operation of the heel holder 301 correspond essentially to that or that in the first exemplary embodiment with the difference that here the pivoting and the support of the extension 33 of the cover 23 against the force of the spring 35 takes place, so that the latching of the web 13 of the spring housing 112 into the latching socket 9b of the latching rocker 9 is brought about by the action of the spring 35. The dimensioning in this area can be carried out with somewhat greater freedom than in the embodiment with a fixed stop. The effect of the spring 35 thus corresponds approximately to that of the spring 8a according to FIG. 8.

For the sake of completeness, it should also be noted here that the force of the spring 35 is lower, preferably substantially lower, than that of the opening spring 20 of the sole holder 106, so that this does not have any adverse effects on the opening process during an arbitrary or involuntary opening of the heel holder 301 can or are to be feared.

After an arbitrary opening, the heel holder 101, 201, 301, as described, is therefore ready for entry and can be closed by inserting the ski shoe biologically into the sole holder 106. Closing the sole holder 106 by hand is also possible in all cases by pressing it down, although a relatively large force has to be overcome. However, it is also possible to bring the heel holder 101, 201, 301, like the heel holder 1 according to the first exemplary embodiment, into its closed position with a considerably lower expenditure of force. The procedure corresponds to that already described.

The heel holder 1 'shown in FIG. 11 corresponds essentially to that according to FIGS. 1 to 4. In the description that follows, only those details are discussed which are different from the first exemplary embodiment. Thus, the sole holder 6 'is made higher than in the first embodiment, so that in the area between the locking rocker 9 and the upper cover of the sole holder 6', a pivoting movement of a slider 28 attached to the release lever 18 'can be described more freely. An elongated hole 26 is provided on the side walls of the release lever 18 ', which elongated holes 26 are penetrated by the axis 8, which is mounted on the sole holder 6' and carries the locking rocker 9, and which are concentric with the pivot axis 7. In the downward position of the heel holder according to FIG. 11, the axis 8 is in each case at the upper end region of the elongated holes 26. The release lever 18 'is supported from above via its two side walls on the pivot axis 7 of the sole holder 6'. For this purpose, the respective support area of the release lever 18 ', as shown in FIG. 11, be curved according to the radius of the pivot axis 7. The bolt 19 attached to the release lever 18 'now passes through a recess 27 formed on the side regions of the sole holder 6'. The recesses 27 replace the elongated holes 6b of the first exemplary embodiment. The boundary edge of each recess 27 facing the axis 8 is rounded concentrically to the pivot axis 7, the boundary edge of each recess 27 facing the pivot axis 7 is rounded concentrically to the axis 8. Furthermore, a leaf spring 23'a, which is fastened to the cover 23 'of the spring housing 12, for example by means of rivets 23b, replaces the resilient tongue 23a according to the first exemplary embodiment.

On the underside of the trigger lever 18 ', the slide 28 is slidably mounted in the longitudinal direction of the trigger lever 18'. For mounting the slide 28 on the release lever 18 ', for example and as shown in FIG. 11, one or more guide tabs 29 which hold the slide 28 on the underside of the release lever 18' can be provided. The slide 28 itself extends approximately over the entire length of the release lever 18 'and is extended over its end region in the direction of the sole holder 6' above the locking rocker 9. The slide 28 passes through a recess 6'c running in the upper cover of the sole holder 6 'in the longitudinal direction of the ski. The slider 28 carries a hook-like gripping element 28a which, in a manner to be described, is provided for encompassing the axis 8 mounted in the sole holder 6 '. For this purpose, the locking rocker 9 and the control curve part 10 are to be provided in the center with corresponding recesses, not specified. 11, in which position the gripping element 28a is in front of the axis 8, is held by a spring 30. The spring 30 is designed as a compression spring and is arranged in a cutout in the slide 28, supported on one end on the slide 28 and on the other side on a support projection 18'a of the release lever 18 'which projects into the recess of the slide 28. Furthermore, the slide 28 is provided with an actuating projection 28b for gripping by hand.

This heel holder can now be opened arbitrarily either by pulling on or by pressing the release lever) 18 '. When opened by pulling the release lever 18 'in the direction of arrow F ₂ in FIG. 11, the release lever 18' is supported on the axis 8, which now acts as a pivot axis for the release lever 18 '. An unobstructed pivoting movement of the release lever 18 'with the slide 28 is made possible by the recess 6'c in the sole holder 6', so that the sole holder 6 'can be opened in the manner described in the first exemplary embodiment according to FIGS. 1 to 4.

If the heel holder is to be opened by pressing the release lever 18 ', for example by means of a ski, a ski boot or a ski pole, the release lever 18' is pivoted downward in the direction of the arrow F ₃ in FIG. 11. The trigger lever 18 'is supported on the bearing block fixed axis 7, which now represents both the pivot axis of the sole holder 6' and the pivot axis of the trigger lever 18 '. The relative movement now taking place between the release lever 18 'and the axis 8 mounted on the sole holder 6' is made possible by the two elongated holes 26 in the release lever 18 '. During the pivoting of the release lever 18 ', the bolt 19 attached to the release lever 18' is pivoted up, this movement being made possible by the two recesses 27 in the sole holder 6 '. The spring housing 12 is also pivoted up about the axis 11 via the bolt 19, the web 13 being released against the force of the release spring 15 from the locking pan 9b of the locking rocker 9 and then, as already described in the first exemplary embodiment, in the region of the recess 9c Detent rocker 9 arrives. After releasing the release lever 18 ', the sole holder 6' (either by lifting the ski boot inserted into the sole holder 6 'or supported by the opening spring 20) begins to pivot up about the pivot axis 7, at the same time the detent rocker 9 swings somewhat backwards and the detent rocker 9 load-bearing axis 8 slides slightly upwards in the elongated holes 26. After a certain pivoting angle of the sole holder 6 ', the locking rocker 9 sliding backwards along the control curve part 10 detects the web 13, which is now pivoted along the locking rocker 9 together with the spring housing 12 upwards about the axis 11. With the pivoting spring housing 12, the bolt 19 fastened to the release lever 18 'also pivots upwards, the release lever 18 simultaneously moving about the axis 8, which now represents the new pivot axis of the release lever 18', in the direction of the arrow F ₂ in FIG. 11 ( thus in the opposite direction to the printing direction) pivots upwards. When the release lever 18 'pivots again, it moves away from the pivot axis 7. The detent rocker 9 can now pivot past the control curve part 10 with the sole holder 6' upwards. In the last phase of pivoting up the sole holder 6 ', the leaf spring 23'a fastened to the cover 23' of the spring housing 12, which was preloaded during the movement sequences just described, now comes into effect and presses the bolt 19 and thus the spring housing 12 downward , whereby the web 13 slides back into the locking pan 9b of the locking rocker 9. As a result, the release lever 18 'carrying the bolt 19 is also brought into its closed position, so that the heel holder 1' is now in its ready-to-go position.

The heel holder, which is now ready for entry, can be closed again by depressing the sole holder 6 '. However, in order to be able to close the sole holder 6 'by hand with less effort, the slide 28 is provided. The slide 28 is from Hand gripped and pulled against the force of the weak spring 30 in the direction away from the sole holder 6 '. The hook-like gripping element 28a thereby grips the axis 8, so that the two elongated holes 26 are now ineffective. In this position of the slide 28, the release lever 18 'is now pivoted up until the web 13 in turn comes out of the locking pan 9b of the locking rocker 9. This actuation only takes place against the low force of the leaf spring 23'a. The sole holder 6 'is then brought into its closed position by hand, only the force of the opening spring 20 having to be overcome. Now the release lever 18 'is pivoted by hand with the slide 28 still actuated in the closing direction, the web 13 again engaging in the locking pan 9b of the locking rocker 9. Although this engagement takes place against the force of the release spring 15, much less effort is required than by simply closing the sole holder 6 '.

In order not to have to hold the slider 28 continuously by hand during the movement processes just described, a resilient catch for the slider 28 can be provided on the release lever 18 ', which engages in a corresponding latching recess when the slider 28 is actuated. An automatic engagement of the slide 28 is possible, for example, by designing the actuation area of the slide 28 as a separate component, which is designed as a two-armed lever articulated on the slide 28, one lever arm of which carries the actuation shoulder and a further spring in the direction is applied to the underside of the release lever 18 'and the second lever arm points away from the underside of the release lever 18'. This second lever arm can now strike, for example, the pivot axis 7 during the depression of the trigger lever 18 ', as a result of which the lever is pivoted and the latching is released automatically.

Furthermore, it is possible to form the lock for the axis 8 by two hook-like gripping elements of the slider 28, which can encompass the axis 8 to the side of the locking rocker 9. This eliminates the need to provide a recess on the locking rocker 9.

To lock the axis 8 for easier closing of the sole holder 6 ', a slide can be provided with two lateral support tabs which can be brought under the axis 8 by actuating the slide on the side of the locking rocker and support it from below. In this case, for reasons of space, it would be advantageous if the support straps provided at the end region of the slider, viewed in the downward position of the heel holder according to FIG. 11, are located on the side of the locking rocker 9 in the area behind the axis 8. It is therefore necessary to move the slide towards the sole holder. Instead of the support tabs, gripping elements can also be provided, which are in the unactuated position of the slide in the area behind the axis 8 of the locking rocker 9 and can be pushed laterally on the axis 8 of the locking rocker 9.

The heel holder 1 ″ shown in FIG. 12 essentially corresponds to that according to FIG. 11. In the description that follows, only those details which are different from this exemplary embodiment are dealt with. The deviations primarily concern the design of the cover 23 ', which does not have a stop in its inner end region, on the other hand has an extension 33' on its rear, angled outer end region, similar to FIGS. 5-10.

In contrast to the exemplary embodiment according to FIGS. 9 and 10, in which the elastic support of the cover 23 at the stop 134 is formed by the spring 35, a rubber spring 35 'is provided in the present exemplary embodiment, which is attached to the extension 33' of the cover 23 '. of the spring housing 12 is fastened, for example, by means of rivets 23'c. As a result of this modification, the rubber spring 35 'is pretensioned during an arbitrary triggering process and, similarly to the exemplary embodiment according to FIG. 11, also causes the leaf spring 23'a by depressing the bolt 19 to return the web 13 into the locking pan 9b of the locking rocker 9. The further procedures correspond essentially to those already described.

Furthermore, in the two embodiments described, it is possible to pivot the bearing block on a vertical axis to be fastened to the base plate in the horizontal plane and at the same time to provide a control cam at the front end region of the base plate, which cooperates with a counter-catch arranged on the sole holder, so that one so-called diagonal release is given. Since the measures required for this are known to one another, this was not dealt with in the introduction to the description or in the drawing figures.

The invention is not restricted to the exemplary embodiments shown. Further modifications are conceivable without leaving the scope of the scope of protection. It is thus possible to use the leaf spring according to FIG. 11 used in the embodiment according to FIGS. 1 to 4 instead of the extension of the cover designed as a resilient tongue, or a spring designed as an extension of the cover in the embodiment according to FIG. 5 .

It is also conceivable to replace the mechanical spring 35 provided in the holding plate 5'a of the bearing block 5 'by another elastic element, for example by a rubber spring. However, instead of the rubber spring provided on the extension of the cover, the extension or its end region itself can also be designed to be resilient, for example in that this end region is suitably designed by means of transverse grooves to bring about a slight deformation, but without the cover material in the plastic material permanent changes, such as cracks or breaks, would occur. Furthermore, it is in the embodiments according to the 11 and 12 conceivable to form the lock for the axis of the locking rocker by a pivot lever.

Claims (15)

1. A safety ski binding, particularly a heel holder (1), comprising a sole holder (6) mounted for pivotal movement about a transverse axle (7) supported on a bearing btock (5) adapted to be secured on a base plate (4), said sole holder (6) being subjected to the action of an opening spring (20) biasing it to the open position and being retained in the downhill running position by a locking rocker arm (9) pivotally mounted on said sole holder (6), one side of said locking rocker arm (9) being formed with a locking projection (9a) adapted in the downhill running position to be engaged below a control cam portion (10) disposed on said bearing block (5), the other side thereof being provided with a locking socket (9b) for the engagement therewith at least in the downhill running position of a bar (13) under the biasing force of at least one release spring (15), said bar being mounted for limited displacement therein in a spring housing (12) pivotally connected to said bearing block (5), a release lever (18) for intentionally opening said sole holder (6) being pivotally connected thereto and carrying a pin (19) coupling it to said spring housing (12), characterized in that a portion of said heel holder (1) rigidly connected to said bearing block is provided with a stop adapted in that phase of the intentional opening operation, in which said bar (13) is disengaged from the locking socket (9b) of said locking rocker arm (9) and the sole holder is in a position between its closed and opened positions, to be engaged by an engagement portion of said spring housing (12), so that in the subsequent phase of the intentional opening operation a relative pivotal displacement occurs between said sole holder (6) and said spring housing (12).

2. A binding according to claim 1, characterized in that said stop is formed by the pivot axle (7) of said sole holder (6) mounted in said bearing block (5).

3. A binding according to claim 1, characterized in that said engagement portion of said spring housing (12) is provided on a cover member (23) thereof and that the respective portion is preferable of resilient construction.

4. A binding according to claim 1 or 3, characterized in that said engagement portion of said spring housing (12) is formed as a resilient tongue (23a), for instance a leaf spring (23, 23'a) directed towards the interior of the binding.

5. A binding according to claim 1, characterized in that said stop (34, 34') is either formed by the rear free end portion (4a, 4'a) of said base plate (4, 4') or of the mounting plate (5a, 5'a) of said bearing block (5) or is provided on one of these plates (4, 4'; 5a, 5'a), and that said engagement portion of said spring housing (12) is formed by a forwards projecting extension (33,33') of the rear end portion of said cover member (23) also covering said spring housing (12) coupled to said release lever (18).

6. A binding according to claim 5, characterized in that said stop (34') is resiliently supported, as by the interposition of a spring (35, 35') on the end portion (4'a) of said base plate (4') or of said bearing block (5), and is preferably guided for sliding displacement on said end portion (4'a), and in that in association with said sole holder (6) there is provided a spring, preferably a hairpin spring (8a) mounted on the axle (8) of said sole holder (6), biasing said locking rocker arm (9) in the direction towards said bar (13) of said spring housing (12) (figs. 8, 9, 10).

7. A binding according to claim 5 or 6, characterized in that said stop is of integral construction with said base plate (4) or with said mounting plate (5a) of said bearing block (5) (figs. 5 to 7, 8, and 12).

8. A binding according to claim 6 or 7, characterized in that said extension (33') of said cover member (23') is resiliently supported as by means of a rubber or plastic spring (35') on said stop (34') fixedly connected to said bearing block (fig. 12).

9. A binding according to claim 4 or 8, characterized in that said resilient tongue (23a) or said resilient support for said extension (33') is of integral construction with said cover member (23).

10. A binding according to any of claims 1 to 9, characterized in that said axle (8) carrying said locking rocker arm (9) is mounted in two elongate openings (26) extending concentric with the pivot axle (7) of said sole holder (6) in the sidewalls of said release lever (18'), that said release lever (18') is supported from above on said pivot axle (7) of said sole holder (6'), and that said sole holder (6') is provided with a cavity (27) defining a free space for said pin (19) secured to said release lever (18').

11. A binding according to claim 10, characterized in that the portions supporting said release lever (18') on said pivot axle (7) of said sole holder (6') are rounded at a radius corresponding to that of said pivot axle (7) (fig. 5).

12. A binding according to claim 10, characterized in that the pivoting range defined by the two elongate openings (26) in said release lever (18') is adapted to be made inoperative by means of an intentionally operable locking means (figs. 11 and 12).

13. A binding according to claim 12, characterized in that said locking means comprises a spring-biased slide member (28) mounted on said release lever (18') for displacement in the longitudinal direction thereof, said slide member (28) having on one side a manually operable actuating projection (28b), and on the other side at least one hook-shaped gripper element (28a) for gripping the axle (8) of said locking rocker arm (9) on actuation of said slide member (28) (figs. 11 and 12).

14. A binding according to claim 12, characterized in that said locking means comprises a spring-biased slide member mounted on said release lever (18') for displacement in the longitudinal direction thereof and having at one end a manually operable actuating projection, and at the other end a bifurcation carrying two support elements extending laterally of said locking rocker arm and being adapted on actuation of said slide member to be moved to a position below the axle of said locking rocker arm so as to support it from below.

15. A binding according to any of claims 3 to 14, characterized in that the force of the resilient stop (134), for instance of the spring (35) thereof, or of the spring, for instance hairpin spring (8a) provided on said sole holder (6) and acting on said locking rocker arm (9), or the force of the resilient engagement portion of said spring housing (12), for instance of said resilient tongue (23a), said leaf spring (23'a) of said resilient extension of said cover member (23), or of said rubber or plastic spring (35'), respectively, is substantially smaller than the force of said opening spring (20,20') acting on said sole holder (6, 6') (figs. 1 to 12).

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