EP0118758A1 - Safety ski binding - Google Patents

Abstract

The invention relates to a heel holder (1) for safety ski bindings, which is provided with a sole holder (6) which can be swiveled up around a crossbar (7) mounted in a bearing block (5). The sole holder (6) carries an axis (8) which runs parallel to the transverse axis (7) and to which a ratchet arm (9) is articulated. In the driving position, this engages under a counter detent (10) of the bearing block (5) and can be released from this position in the event of an overload against the force of an adjustable release spring (13). The release spring (13) is accommodated in a spring housing (11) which is pivotably mounted on an axle (19) which is fixed to the bearing block and which is possibly the transverse axis (7). The spring housing (11) is connected in an articulated manner via a bolt (17) to a release lever (16), which release lever (16) is used in a known manner for arbitrarily getting out of the heel holder (1) with a ski boot. The release lever (16) is articulated on one of the axes. The sole holder (6) is under the influence of a spring (21) acting on it in the opening direction. Essential to the invention is the use of a spring (20), which acts on the spring housing (11) or the release lever (16) in the closing direction and the sole holder (6) in the opening direction at least in a phase of arbitrary getting out.

Description

The invention relates to a safety ski binding, in particular a heel holder with a sole holder pivotable on a bearing block about a transverse axis, which is held in the downward position by a latching rocker pivotally mounted on the sole holder, which has a latching projection on one side, which in the downward position has a latching bracket Arranged latching nose engages and is provided on the other side with a locking recess into which a locking part loaded by a release spring engages at least in the downward position, which is mounted in a spring housing which can be pivoted relative to the bearing block and can be displaced to a limited extent in guides thereof, with the voluntary opening of the Sole holder a release lever pivotally mounted on the sole holder is provided, by the actuation of which the spring housing can be pivoted up and the locking part can be unlocked from the locking recess of the locking rocker so that the locking rocker is in its (unlocked) position around it Axis (force) can be freely pivoted and the sole holder is acted upon directly by an opening spring which tends to pivot it into the open position.

A safety ski binding of the type mentioned at the outset is described, for example, in DE-OS 28 38 904 (see FIGS. 1 to 5). In this known binding, the spring is arranged in a cavity of the release lever pivotally mounted on the sole holder. The trigger lever thus forms the spring housing at the same time. After an arbitrary opening of the sole holder by actuating the release lever, however, this binding is not in the ready-for-entry position. An additional handle is required to reinsert the ski boot or close the sole holder. Either the release lever is first closed by exerting a force so that the locking part snaps back into the locking recess of the locking rocker, whereupon the sole holder can then be closed by pressing it down. But it is also possible, for example, first by inserting the ski boot in the binding to close the sole holder, and only then, for example by means of a ski pole, to press the release lever into its closed position and thus the locking part into the locking recess of the locking rocker.

Another such ski binding is shown in AT-PS 327.068. This bond has proven itself very well in practice. In this binding, the release lever is pivotally mounted on the axis of the locking rocker and carries a bolt which passes through both elongated holes formed concentrically with the axis of the locking rocker on both sides of the sole holder and elongated holes formed on both sides on the spring housing. In this way too, when the release lever is actuated, the locking part is released from the latching recess of the latching rocker, whereby the latching rocker is released from the bearing block which is fixed to the bearing block and the sole holder can pivot up freely about its pivot axis. After an arbitrary opening of the sole holder, however, this heel binding is also not in the ready-for-entry position, a reinsertion of the ski boot or a closing of the heel holder is possible in the two ways already described above.

The invention is therefore based on the task of creating a safety ski binding of the type mentioned such that it is located to an arbitrary opening in the einsteigberei _t s location.

The object is achieved according to the invention in that, as is known per se, a further spring acting on the release lever or the spring housing with the locking part in the closing direction is provided in that this spring is designed as a leg spring which holds the sole holder on the one hand and the release lever or on the other hand, the spring housing with the locking part, at least in a phase of arbitrary triggering, is acted on in opposite directions, with the locking rocker being released from the closing after the sole holder has been opened voluntarily. is held pivoted by the leg spring locking part to the bearing block-fixed counter-locking until the locking part comes to rest again in the locking recess of the locking rocker.

The group of features mentioned in the first place is known per se from CH-PS 500.730, but in an embodiment in which the locking rocker is constantly under the action of the release spring, and even during the arbitrary release the spring force has to be overcome even more than this during an involuntary release, because the support surface of the locking arm shown there runs obliquely upwards. In addition, the sole holder with the nose separating the two recesses must also be pivoted against the force of the release spring, which is even when the release lever together with the release spring according to FIG. 3 is in the top dead center position. There is a separate opening spring for operating the sole holder; there is no positive control between the actuation of the sole holder and that of the spring housing. This further measure, which characterizes the subject matter of the invention, on the one hand brings about a favorable opening of the sole holder, and on the other hand brings the locking rocker and spring housing together, so that the heel holder returns to the ready-for-entry position. This procedure takes place fully automatically after releasing the release lever and after fully opening the sole holder. This significantly improves the ease of use of the known bindings, the advantages of which the binding according to the invention also has.

If the release lever forms the spring housing at the same time, it is advantageous if, according to the invention, the (further) leg spring is mounted on the axis carrying the locking rocker and is supported on one side on the sole holder and on the other side on the spring housing or on the release lever. In this embodiment, therefore, no additional components for accommodating and arranging the (further) leg spring are required. Another preferred embodiment of the invention for a binding, in which the pivot axis of the sole holder is provided in the rear and the base plate adjacent region of the binding, the spring housing is preferably also mounted on the pivot axis of the sole holder and this with the release lever via a slidably articulated connection , for example via a bolt attached to it, which is slidably mounted in a guide of the spring housing formed by an elongated hole, is that the leg spring is mounted on the axis carrying the locking rocker and one end on the sole holder and the other on the spring housing is supported with the coupling lever coupling pin. This makes it particularly easy to accommodate the leg spring in a binding system, as shown in AT-PS 327.068 described above.

Another feature of the invention, in which the pivot axis of the sole holder is arranged in the upper region of the pedestal, is that the leg spring is mounted either on the pivot axis of the sole holder or on the axis carrying the locking rocker arm, one end on which the release lever with the spring housing coupling bolt is supported from above and elsewhere from below on the housing of the sole holder. In both cases, no significant structural changes to the heel holder are required to accommodate and arrange the additional spring.

A further development of the invention is that the axis carrying the locking 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 on the pivot axis of the sole holder from above, and that the sole holder for the bolt attached to the release lever each has an exemption in the form of a recess. Through these measures according to the invention, there is the possibility of pressing the heel holder both by pressing on the can also be opened arbitrarily 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 be formed according to the invention 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 projection and on the other hand has at least one hook-shaped gripping element which, by actuating the slide, comprises the axis of the locking rocker.

A further lock that can be easily accommodated can be provided by a spring-loaded spring that is displaceably mounted on the release lever in the longitudinal direction thereof Loaded slide be formed, which has a hand-detectable actuation approach on one end and is forked on the other and carries two support elements that extend to the side of the locking rocker and can be brought under the axis of the locking rocker by actuating the slide and support it from below.

The invention also has the task of taking measures that the binding is always in a precisely defined position after an arbitrary opening, namely either in the unlocked or in the ready-to-go position, and there is no jamming between the web of the spring housing in its unlocked position with the locking rocker due to improper actuation, in particular due to early release of the release lever.

To solve this further problem, the invention provides that the leg spring is arranged on the pivot axis of the sole holder with forward (in the direction of the sole holder) and, viewed in elevation and in the projection onto the plane of the drawing, crossing legs, wherein, in the driving position and in the first phase of arbitrary opening, the leg pointing downward is supported from below on a stop of the sole holder and the leg pointing upward is supported on a bearing block-fixed stop from above, so that the leg spring acts as an opening spring, and that the spring housing also has a stop which is pivotable in the plane of the leg of the leg spring supported on the bearing block fixed stop and which, viewed in the vertical direction, lies in this position of the sole holder at a distance below the leg of the leg spring, this stop in the second phase of arbitrary opening, in which the web is in its position unlatched from the locking recess of the locking rocker, abuts against the mentioned leg from the bearing block-fixed stop and from this phase of arbitrary opening the Pushes the spring housing into its closed position with the locking rocker so that the leg spring acts as a return spring.

The fact that the sole holder on the one hand and the release lever or the spring housing on the other hand are acted upon in opposite directions by the leg spring according to the invention, the heel holder automatically comes into its ready-to-enter position when the sole holder is opened by actuating the release lever when the skier releases the release lever earlier before he would have stepped out of the binding with his ski boot. The comfort of conditions is therefore significantly improved.

A preferred embodiment of the invention is that a further leg spring is arranged on the pivot axis of the sole holder, the legs of which are supported on the one hand on the bearing block and on the other hand on the stop of the sole holder and which continuously urges the sole holder into the open position. This ensures that the binding opens reliably even under the most unfavorable weather and slope conditions.

Another advantage of the invention is that the force of the first leg spring (the return spring) is significantly less than the force of the further leg spring (the opening spring acting on the sole holder). This ensures that the return spring is always securely supported on the sole holder.

Another advantage of the invention is that the force of the (further) leg spring is lower, preferably substantially lower, than the force of the opening spring acting on the sole holder.

Further features, advantages and details of the invention will now become apparent from the drawing, which shows several embodiments of a represents safety ski binding according to the invention, described in more detail. 1 to 4 show a first exemplary embodiment, FIG. 1 showing the safety ski binding in a side view in section in the downhill position, FIGS. 2 and 3 each showing the safety ski binding in a position during an arbitrary opening likewise in a side view in section and FIG. 4 are the open position of the safety ski binding after arbitrary opening or after a safety release; 5 to 8 show a second embodiment of a safety ski binding according to the invention, which in turn essentially correspond to FIGS. 1-4 of the first exemplary embodiment, FIG. 9 shows a further exemplary embodiment of the safety ski binding according to the invention in a side view in section in the downhill position, wherein However, this drawing figure shows only the details modified compared to the second exemplary embodiment, FIG. 10 shows a further exemplary embodiment in a position analogous to FIGS. 1 and 5, and FIGS. 15 and 16 show a further embodiment of the invention in a modification of the exemplary embodiment according to FIG 11-14 with an additional opening spring, with FIG. 15 a detail of the side view similar to FIG. 11 and FIG. 16 a top view of the arrangement of the two springs.

According to the first exemplary embodiment according to FIGS. 1-4, the safety ski binding is designed as a heel holder designated in its entirety by 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 against the force of at least one thrust spring (not shown) on the guide rail 3, the thrust spring being ski-proof on one end and on the base plate 4 of the heel holder 1 in itself is supported in a known manner. A bearing block 5 is fastened on the base plate 4 and carries a pivot axis 7 on its rear region adjacent to the base plate 4, on which a sole holder 6 is pivotably mounted. The sole holder 6 carries on its upper area on a further axis 8 running parallel to the first-mentioned axis a likewise pivotable latching rocker 9, which extends essentially downward and has a latching projection 9a at its lower end, which according to the heel holder 1 is in the downward position Fig.l trained on the bearing block 5, engages under catch 10.

On the pivot axis 7 of the sole holder 6 is also a pivotable, viewed in plan view, approximately U-shaped spring housing 11, which has longitudinal slots 11a in its two side cheeks, which form a guide for a locking part 12. The locking part 12 is acted upon by one end of a release spring 13, the other end of which is supported on a spring abutment 14 which is adjustable in the axial direction of the release spring 13 by means of a screw 15 rotatably mounted in the spring housing 11.

In the locking rocker 9, a locking pan 9b is formed for receiving the locking part 12, into which the latter is pressed in the downward position by the release spring 13. Following the locking recess 9b, an opening in the form of a recess 9c is provided on the locking rocker 9, into which the locking part 12 snaps briefly during the actuation of a release lever 16 in a manner to be described.

The release lever 16 also overlaps the sole holder 6 and is pivotally mounted on the axis 8 arranged on the sole holder 6, on which axis 8 the locking rocker 9 is also articulated. A bolt 17 fastened to the release lever 16 parallel to the axis 8 passes through both the sole holder 6 and the side walls of the spring housing 11 and is slidably guided in these two components in elongated holes 6b and 11b, respectively. The two are on the sole holder 6 provided slots 6b arranged concentrically to the pivot axis 8; the two elongated holes 11b formed on the spring housing 11 run rectilinearly approximately at right angles to the longitudinal extent of the elongated holes 6b of the sole holder 6.

The counter-locking 10 cooperating with the locking rocker 9 is formed on a part of the same which is pulled up at the front end region of the bearing block 5. The counter detent 10, viewed from the top of the ski, initially forms a detent surface 10a, which is engaged by the detent projection 9a of the detent rocker 9 in the downward position of the heel holder 1. At the end region of the bearing block 5 which bears the counter-latch 10 and which faces away from the upper side of the ski, a stop is formed by at least one offset 10d in cooperation with an attachment 6c fastened to the sole holder 6 against the sole holder 6 being pivoted too far when the binding is opened. The back surface 10b adjoining the locking surface 10a of the counter-locking 10 is designed as an essentially flat surface which is slightly inclined in the direction of the front jaw, not shown.

A leg spring 20 is wound around the axis 8 carrying the locking rocker 9, the two free end regions of which point towards the end of the ski, one end of the leg spring 20 being supported on the bolt 17 and the other end on the underside of the upper cover of the sole holder 6 .

On the pivot axis 7 provided on the bearing block 5 of the sole holder, an opening spring 21 is furthermore mounted on one side of the binding in the area between the spring housing 11 and on the bearing block 5, which is attached at one end to the base plate of the bearing block 5 and at the other end to one on the sole holder 6, is supported in the binding interior pointing stop 22.

The mode of operation of the heel holder 1 in question is as follows: If a ski shoe (not shown), which is inserted into the binding, acts on the sole holder 6 in the vertical direction, the sole holder 6 pivots upward about its pivot axis 7. During this pivoting movement, the latching rocker 9 slides along the latching surface 10a of the counter-latch 10 fixed on the bearing block and presses the locking part 12 back against the force of the release spring 13 in the longitudinal slots 11a of the spring housing 11. During the pivoting movement of the sole holder 6, the spring housing 11 is also pivoted about the pivot axis 7 in the same way, so that the locking rocker 9 remains under the action of the release spring 13. As soon as the projection 9a of the locking rocker 9 has exceeded the edge present between the locking surface 10a and the back surface 10b, which is equivalent to exceeding the elastic range, the sole holder 6 pivots supported by the opening spring 21 arranged on the pivot axis 7 into its open position. In this way, the release spring 13 can relax until the locking part 12 strikes the end regions of the longitudinal slots 11a of the spring housing 11 facing the locking rocker 9. The binding is now in its ready-to-go position, which is shown in FIG. The binding is closed from this position simply by depressing the sole holder 6 into the position shown in FIG.

If the heel holder is now to be opened by hand, the release lever 16 is pivoted up in the direction of the arrow F ₁ shown in FIG. ₁ , for example by hand. The spring housing 11 is pivoted upward about the pivot axis 7 by the bolts 17 pivoted upward in the elongated holes 6b, which extend concentrically with the axis 8, the locking part 12 being moved out of the locking recess 9b of the locking rocker 9 against the force of the spring 13. After releasing the release lever 16, the recess 9c of the latching rocker 9 adjoining the latching recess 9b in turn allows the release spring 13 to relax (see FIG. 2), but now the latching rocker 9 is no longer spring-loaded and during the subsequent upward movement of the sole holder 6 below Effect of the opening spring 21 can pivot so far that it can slide along the counter detent 10 upwards (see Fig. 3). The actuation of the release lever 16 also takes place, as the comparison of Fig. 1 with Fig. 2 shows, against the relatively low force the leg spring 20. This leg spring 20, which is supported on the bolt 17, acts on the spring housing 11 in the direction of the top of the ski. The locking part 12 presses against the locking rocker 9 and guides it along the back surface 10b of the bearing block-fixed counter-locking 10. The course of the back surface 10b is now selected so that in the last phase of the pivoting movement of the sole holder 6 with the spring housing 11 under the effect of Leg spring 20 downward pivoting locking part 12 in turn slides into the locking recess 9b of the locking rocker 9. At the same time, the release lever 16, which is also mounted on the pin 17, is brought into its closed position, so that the heel holder is now in its ready-for-entry position, which is shown in FIG.

In the second exemplary embodiment according to FIGS. 5-8, the heel holder 101 differs from the one previously described in that the pivot axis 107 carrying the sole holder 106 is arranged on the upper region of the bearing block 105. Furthermore, a further axis 19, which also runs transversely to the longitudinal direction of the ski, is arranged for mounting the spring housing 111 at the rear end region of the bearing block 105. The locking part 112 is here 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 18 is seated, on which the release spring 13 is supported.

As a result of the different type of mounting of the sole holder 106 on the bearing block 105, the bolt 17 passes through an approximately arch-shaped link guide 11 provided on a tab-like extension of the spring housing 111. Furthermore, the opening spring 120 acting on the sole holder 106 is provided in an upper end area of the counter catch 110 Recess arranged, one end of the sole holder 106 and the other on Bearing bracket 105 supported. The stop limiting the swiveling-up movement of the sole holder 106 is formed by a shoulder 106c fastened to the sole holder 106.

In this case, the leg spring 120 acting on the sole holder 106 on the one hand and the unit formed from the spring housing 111 and the release lever 116 on the other hand is mounted on the pivot axis 107 of the sole holder 106 fastened to the bearing block 105.

A housing-like cover 23, preferably made of plastic, is pushed over the rear end region of the spring housing 111 and firmly connected, for example riveted, to the spring housing 111. The cover 23 thus pivots together with the spring housing 111. 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 further construction and the mode of operation of the heel holder 101 otherwise correspond to the one or already described, the FIGS. 6-8 in turn representing the positions corresponding to FIGS. 2-4 of the first exemplary embodiment.

The opening spring which brings the heel holder 101 into its ready-to-enter position after an arbitrary opening can now, as shown in FIG. 9, on the axle 8 carrying the locking rocker 9, in a modification of the second embodiment, but following the first embodiment be. In this case too, the spring is designed as a leg spring 20, which is wound around the axis 8 and the two free end regions of which also point towards the end of the ski on the bolt 17 from above and on the sole holder 6 are supported from below. The function of this embodiment corresponds to that shown in FIGS. 1 to 4 and 5 to 8. For this reason, the presentation and description of further details is unnecessary.

In all the design variants described so far, the heel holder is therefore ready to be climbed in after an arbitrary opening and can be closed simply by inserting the ski boot into the sole holder. Closing the sole holder by hand is also possible by pressing it down, although a relatively large force has to be overcome. In all the design variants described so far, however, it is also possible to bring the heel holder into its closed position with a considerably lower effort. For this purpose, starting from the position shown in FIGS. 4 and 8, the release lever 116 is pivoted up until the locking part 12 in turn comes out of the locking pan 9b of the locking rocker 9. As shown in a comparison of FIG. 4 with FIG. 3 or FIG. 8 with FIG. 7, this actuation only takes place against the low force of the leg spring 20, 120. The sole holder 6, 106 is then brought into its closed position by hand, only the release spring 13, which has a force of the opening spring 21, 121 to be overcome, being overcome. Due to the release lever 116 now pivoted, for example, by hand again in the closing direction, the locking part 12 again engages in the locking pan 9b of the locking rocker 9, the trigger spring 13 being compressed only slightly when this actuation is carried out. In this way, the heel holder can be brought into its closed position by hand with less effort. This procedure will be chosen especially when 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 heel holder 201 shown in FIG essential to that according to FIGS. 5 to 8. In the description that follows, only those details are dealt with that are configured differently from the first exemplary embodiment. Thus, the sole holder 206 is made higher than in the exemplary embodiments according to FIGS. 5-8 or 9, so that in the region between the locking rocker 9 and the upper cover of the sole holder 206, a pivoting movement of a slide 28 fastened to the release lever 216 is described in more detail can take place unhindered. On the side walls of the release lever 216, an elongated hole 26 is provided, which elongated holes 26 are penetrated by the axis 8 which is mounted on the sole holder 206 and carries the locking rocker 9 and which are concentric to the pivot axis 107. In the downward position of the heel holder 201 according to FIG. 10, the axis 8 is in each case at the upper end region of the elongated holes 26. The release lever 216 is supported from above via its two side walls on the pivot axis 107 of the sole holder 206. For this purpose, the respective support region of the release lever 216, as shown in FIG. 10, can be curved in accordance with the radius of the pivot axis 107. The bolt 17 fastened to the release lever 216 now passes through a recess 27 formed on the side regions of the sole holder 206. The recesses 27 replace the elongated holes 6b of the preceding exemplary embodiments. The boundary edge of each recess 27 facing the axis 8 is rounded concentrically to the pivot axis 107, the boundary edge of each recess 27 facing the pivot axis 107 is rounded concentrically to the axis 8.

On the underside of the release lever 216, the slide 28 is mounted so that it can be displaced in the longitudinal direction of the release lever 216. For mounting the slide 28 on the release lever 216, for example, and as shown in FIG. 10, one or more guide tabs 29, which hold the slide 28 on the underside of the release lever 216, can be provided. The slide 28 itself extends approximately over the entire length of the release lever 216 and is over its end region in the direction of Sole holder 206 extended above the locking rocker 9. The slide 28 passes through a recess 206d in the upper cover of the sole holder 206 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 axle 8 mounted in the sole holder 206. For this purpose, the detent rocker 9 and the counter detent 10 are to be provided in the center with corresponding recesses, not specified. The slide 28 is held in its position shown in FIG. 10, in which the gripping element 28a is in front of the axis 8, by a spring 30. The spring 30 is designed as a compression spring and is arranged in a cutout in the slide 28, is supported at one end on the slide 28 and at the other end on a support projection 216a of the release lever 216 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 216. When opened by pulling the release lever 216 in the direction of arrow F ₂ in FIG. 10, the release lever 216 is supported on the axis 8, which now acts as a pivot axis for the release lever 216. An unobstructed pivoting movement of the release lever 216 with the slide 28 is made possible by the recess 206d in the sole holder 206, so that the sole holder 206 can be opened in the manner described in the first exemplary embodiment according to FIGS.

If the heel holder is to be opened by pressing the release lever 216, for example by means of a ski, a ski boot or a ski pole, the release lever 216 is pivoted downward in the direction of the arrow F ₃ in FIG. The release lever 216 is supported on the pivot axis 107 fixed to the bearing block, about which both the sole holder 206 and the release lever 216 are now pivoted. Those mounted between the release lever 216 and the one on the sole holder 206 Axial 8 relative movement is made possible by the two elongated holes 26 in the trigger lever 216. During the pivoting of the release lever 216, the bolt 17 fastened to the release lever 216 is pivoted up, this movement being made possible by the two recesses 27 in the sole holder 206. The spring housing 111 is also pivoted up about the axis 19 via the bolt 17, the locking part 12 being released against the force of the release spring 13 from the locking pan 9b of the locking rocker 9 and then, as already described in the previous exemplary embodiments, into the region of the recess 9c the locking rocker 9 arrives. After releasing the release lever 216, the sole holder 206 begins to pivot (either by lifting the ski boot inserted into the sole holder 206 or supported by the opening spring 221) about the pivot axis 107; at the same time, the locking rocker 9 swings somewhat backwards and the axis 8 carrying the locking rocker 9 slides somewhat upward in the elongated holes 26. After a certain pivoting angle of the sole holder 206, the locking rocker 9 sliding backwards along the counter-locking 10 detects the locking part 12, which is now pivoted along the locking rocker 9 together with the spring housing 111 upwards about the axis 19. With the pivoting spring housing 111, the bolt 17 fastened to the trigger lever 216 also pivots upward, the trigger lever 216 simultaneously about the axis 8, which now represents the new pivot axis of the trigger lever 216, in the direction of the arrow F ₂ in FIG. 10 (i.e. in the opposite direction) Direction to print direction) pivots upwards. When the release lever 216 pivots again, it moves away from the pivot axis 107. The detent rocker 9 can now pivot past the counter-detent 10 with the sole holder 206 upward. In the last phase of the pivoting up of the sole holder 206, the leg spring 220, which is supported on one end on the sole holder 206 and on the other side on the bolt 17 and which has been prestressed during the movement sequences just described, comes into effect and presses the bolt 17 and thus the spring housing 111 down, as a result of which the locking part 12 slides back into the locking pan 9b of the locking rocker 9. This also the release lever 216 carrying the bolt 17 is brought into its closed position so that the heel holder 201 is now in its ready-to-go position.

The heel holder 201, which is now ready for boarding, can be closed again by depressing the sole holder 206. However, in order to be able to close the sole holder 206 by hand with less effort, the slide 28 is provided.

The slider 28 is gripped by hand and pulled against the force of the weak spring 30 in the direction away from the sole holder 206. The hook-like gripping element 28a grips the axis 8, so that the two elongated holes 26 are now ineffective. In this position of the slide 28, the release lever 216 is now pivoted up until the locking part 12 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 leg spring 120. The sole holder 206 is then brought into its closed position by hand, only the force of the opening spring 121 having to be overcome. Now the trigger lever 216 is pivoted by hand with the slider 28 still actuated in the closing direction, the locking part 12 again engaging in the locking pan 9b of the locking rocker 9. Although this engagement takes place against the force of the release spring 13, much less effort is required than by simply closing the sole holder 206.

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 216, which latches in a corresponding latching recess during the actuation of the slider 28. An automatic unlatching 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, the lever of which a lever arm carries the actuating shoulder and is acted upon by a further spring in the direction of the underside of the release lever 216 and whose second lever arm points away from the underside of the release lever 216. This second lever arm can now strike, for example, the pivot axis 107 during the depression of the trigger lever 216, as a result of which the lever is pivoted and the latching is released automatically. 4th

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 206, 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 tabs provided at the end region of the slider, viewed in the downward position of the heel holder according to FIG. 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.

It is also possible in the last-described exemplary embodiment according to FIG. 10 to use the springs described in the other exemplary embodiments as an additional spring which brings the release lever and the spring housing in the closing direction.

The exemplary embodiment according to FIGS. 11-14 shows a heel holder 301 with a further modification of the design and arrangement of the leg spring 320. This is wound around the common pivot axis 7 of the sole holder 6 and spring housing 11, the free end regions of both legs of the leg spring 320 pointing forward, towards the sole holder 6, and the Leg spring 320, viewed in the driving position, is supported with one of its legs 320b on a bearing block fixed to a bearing block 305a and with its other leg 320a on a stop projection 22 attached to the sole holder 6. The two legs 320a, 320b intersect, as shown in particular in FIG. 11, in the projection onto the plane of the drawing. Furthermore, the spring housing 311 also has a stop 311c, which is located in this position of the heel holder 301 in the vicinity of the base plate 4, at a distance from the leg 320b of the leg spring 320 which is supported on the bearing block fixed stop 305a. The stop 311c of the spring housing 311 can be swiveled up in the plane in which the leg 320b of the leg spring 320 which is supported or can be supported on the bearing block fixed to the bearing block lies. The leg spring 320 fulfills, as will be explained on the occasion of the function of the heel holder 301, both the function of an opening spring and that of a return spring.

The mode of operation of the heel holder 301 corresponds to an involuntary triggering process, e.g. bie a fall of the skier, that of the embodiment of FIGS. 1-4.

If the heel holder 301 is now to be opened arbitrarily, the release lever 16 is pivoted upward, for example by hand, in the direction of the arrow F1 shown in FIG. The spring housing 311 is pivoted upward about the axis 7 by the bolts 17 pivoted upward in the elongated holes 6b, which extend concentrically to the axis 8, the locking part 12 being moved out of the locking recess 9b of the locking rocker 9 against the force of the spring 13. To This unlatching allows the recess 9c of the locking rocker 9 adjoining the locking recess 9b in turn to relax the release spring 13 (see FIG. 12), but now the locking rocker 9 is no longer spring-loaded and during the subsequent pivoting up of the sole holder 6 under the effect of in the first phase of the arbitrary opening of the heel holder 301, in turn, leg spring 320 acting as an opening spring can pivot so far that it slides upward along the counter-latch 10.

13 shows the heel holder 301 in a position with the sole holder 6 not yet fully pivoted up, the latching rocker 9 being in an intermediate position on the counter-latch 10 and the leg 320b of the leg spring 320 having been somewhat removed from the bearing block-fixed stop 305a. While the spring housing 311 has reached this predetermined, obliquely upward-pointing position, the leg 320b of the leg spring 320 supported in the travel position on the bearing block fixed stop 305a of the leg spring 320 was lifted off the stop 305a by means of the stop 311c attached to the spring housing 311, so that the leg spring 320 now Sole holder 6 and the spring housing 311 in opposite directions, etc. with one of the original preload against increased clamping force. Since the sole holder 6 takes the locking rocker 9 with it, the latter can pivot about its axis 8 between the back surface 10b of the bearing block-fixed counter-locking 10 and the locking part 12 of the spring housing 311 free of any spring force or level off. As a result of the pivoting up of the sole holder 6 and relative to this spring housing 311 pushing downward, the latching rocker 9 is guided along the back surface 10b of the counter-latch 10 fixed on the bearing block. The course of the back surface 10b of the counter detent 10 is selected so that in the last phase of the

Swiveling up the sole holder 6, the locking part 12, which swivels downward with the spring housing 311 under the action of the leg spring 320, again reaches the area of the locking recess 9b of the locking rocker 9. At the same time, the one also mounted on the pin 17 Release lever 16 brought into its closed position, so that the heel holder is now in its ready-to-go position, which is shown in FIG.

In the next embodiment of the invention according to FIGS. 13 and 16, a further leg spring 421 is mounted on the pivot axis 7 of the sole holder 6 of the heel holder 401, with one of its legs 421b on the base plate of the bearing block 305 and with its other leg 421a on the attached to the sole holder 6, in the binding interior pointing stop 22 is supported. This leg spring 421 acts exclusively as an opening spring. In the first phase of the arbitrary opening, it supports the effectiveness of the (first) leg spring 320 acting in the opening direction of the sole holder 6, which is to prevent the heel holder 401 from swinging up properly or not completely in the event of icing or under unfavorable slope conditions, as a result of which Similar difficulties could arise as they were mentioned as a certain disadvantage in the configuration according to the first exemplary embodiment (on page 6, paragraph 2). The force of the leg spring 421 acting as the opening spring is greater than that of the double function, i.e. both opening and resetting, exercising leg spring 320, so that the latter always experiences a kind of support on the sole holder 6.

The further structure of this heel holder 401 corresponds to that of the heel holder 301 described with reference to FIGS. 11 to 14. The mode of operation of the heel holder 401 according to FIGS. 15 and 16 differs from that of the heel holder 301 insofar as the additional leg spring 421 as described Sole holder 6 is acted upon during the entire course of the arbitrary opening in the opening direction and thus for resetting the spring housing 311 and the release lever 16 by means of the (first) leg spring 320 in the second phase of the arbitrary opening through the sole holder-fixed stop shoulder 22 for the one leg 320a of the latter spring (320) forms a defined support.

The invention is not restricted to the exemplary embodiments shown. Further modifications are conceivable without leaving the scope of the scope of protection. So it is particularly possible to pivot the bearing block on a vertical axis to be attached to the base plate in the horizontal plane and at the same time to provide a control curve at the front end region of the base plate, which cooperates with a counter-catch arranged on the sole holder, so that a so-called diagonal release control given is. Since the measures required for this are known per se, the details in this regard were not dealt with in the description. Furthermore, it is conceivable to arrange the leg spring on an additional bolt mounted on the sole holder. It is also possible to use a leaf spring instead of the leg spring, which is also supported at one end on the sole holder and at the other preferably on the bolt coupling the spring housing to the release lever. The spring could also be supported on the spring housing itself. The arrangement of such a spring is also possible with a binding system in which the release spring is arranged in a cavity of the release lever itself. In this case, it is then possible, for example, to support the spring on a part of the release lever in such a way that it is acted upon in the closing direction, as a result of which the spring part of the spring housing reaches the region of the latching recess of the latching rocker.

Furthermore, it is conceivable in the exemplary embodiment according to FIG. 10 to form the lock for the axis of the latching rocker by means of a pivot lever.

Furthermore, according to the exemplary embodiment according to FIGS. 15 and 16, it is conceivable for the end regions of the individual legs 320a and 321a of the two leg springs 320 and 321, which are supported on the sole holder, to be supported on two separate stop attachments, as a result of which The designer is given greater leeway with regard to the different pretensioning of the two leg springs 320 and 321.

The component which serves to hold the ski boot and can be swiveled up about the pivot axis fixed to the bearing block was referred to as such a "sole holder". However, it is understandable that this designation not only applies to the actual sole holder (in the narrower sense) used to hold down the heel of the ski boots, if necessary with a conventional step spur serving to get in, but also the area generally covering the bearing block in the driving position, generally referred to as the housing, on which the sole holder is fastened or articulated, in this context, it should be pointed out that construction pieces designated as sole holder fixed also include an arrangement fixed to the housing.

It should also be pointed out that in all the exemplary embodiments described, the force of the additional spring is lower, preferably substantially lower, than the force of the opening spring acting on the sole holder.

Claims (15)

1.Safety ski binding, in particular heel holder with a sole holder which can be pivoted on a bearing block about a transverse axis designed as a pivot axis and which is held in the downward position by a latching rocker pivotably mounted on the sole holder and which has a latching projection on one side which, in the downward position, has a latching block on the bearing block Arranged counter latch engages and is provided on the other side with a locking recess into which a locking part loaded by a release spring engages in the downward position, which is mounted in a spring housing which can be pivoted relative to the bearing block and can be displaced to a limited extent in guides thereof, the voluntary opening of the sole holder a release lever pivotally mounted on the sole holder is provided, by its actuation the spring housing can be pivoted up and the locking part can be unlocked from the locking recess of the locking rocker, so that the locking rocker in this (unlocked) position about its axis (force t) is freely pivotable and wherein the sole holder is acted upon directly by an opening spring which tends to pivot it into the open position, characterized in that, as is known per se, a further one, the release lever (16,216) or the spring housing (11,111,311) with the Locking part (12, 112) in the closing direction is provided that this spring is designed as a leg spring (20, 120, 320), which holds the sole holder (6, 106, 206) on the one hand and the release lever (16, 216) or the spring housing (11, 111, 311) with the locking part (12, 112) on the other , at least in a phase of arbitrary release, acted on in opposite directions, whereby after the sole holder (6, 106, 206) has been opened arbitrarily, the latching rocker (9) is moved from the closing locking line (12, 112), which is acted upon by the leg spring (20, 120, 320), to the counter-latch (10) is held pivoted until the locking part (12, 112) again in the locking recess (9b) the locking rocker (9) comes to rest. 2. Binding according to claim 1, in which the release lever simultaneously forms the spring housing, characterized in that the leg spring is mounted on the axis carrying the locking rocker and is supported at one end on the sole holder and at the other end on the spring housing or on the release lever. 3. Binding according to claim 1, wherein the pivot axis of the sole holder is provided in the rear and the base plate adjacent region of the binding, wherein the spring housing is preferably also mounted on the pivot axis of the sole holder and this with the release lever via a slidably articulated connection, for example via a bolt fastened to this, which is slidably mounted in a guide of the spring housing formed by an elongated hole, is coupled, characterized in that the leg spring (20) is mounted on the axle (8) carrying the locking rocker (9) and one end on the sole holder (6) and other. On which the spring housing (12) with the release lever (16) coupling bolt (17) is supported (Fig.1-4). 4. Binding according to claim 1, in which the pivot axis of the sole holder is arranged in the upper region of the bearing block, characterized in that the leg spring (20, 120) either on the pivot axis (107) of the sole holder (106) or on the latching rocker (9) supporting axis (8) is supported, one end on which the release lever (16) with the spring housing (11) coupling bolt (17) is supported from above and the other on the housing of the sole holder (106) from below (Fig. 5-8 ; 9; 10). 5. Binding according to claim 1 or 4, characterized in that the locking rocker (9) carrying axis (8) in two on the side walls of the release lever (216) concentric to the pivot axis (107) of the sole holder (206) extending elongated holes (26) is stored that the release lever (216) is supported on the pivot axis (107) of the sole holder (206) from above, and that the sole holder (206) has an exemption in the form of a recess (27) for the bolt (17) attached to the release lever (216) ) (Fig. 10). 6. Binding according to claim 5, characterized in that the support areas of the release lever (216) on the pivot axis (107) of the sole holder (206) are rounded according to the radius thereof. 7. Binding according to claim 5, characterized in that through the two elongated holes (26) in the release lever (216) certain pivoting range of the same by means of an arbitrarily actuable lock can be deactivated. 8. Binding according to claim 7, characterized in that the lock is formed by a spring-loaded slide (28) which is displaceably mounted on the release lever (216) in the longitudinal direction thereof and which has on one end a manually detectable actuating projection (28b) and on the other hand at least one hook-shaped one Gripping element (28a), which comprises the axis (8) of the locking rocker (9) by actuating the slide (28). 9. Binding according to claim 7, characterized in that the lock is formed by a spring-loaded slide which is displaceably mounted on the release lever (216) in the longitudinal direction of the same and which has a manually detectable actuating projection on one end and is forked on the other and carries two supporting elements which run to the side of the locking arm and can be brought under the axis of the locking arm by pressing the slide and support it from below. 10. Binding according to one of claims 1 to 9, characterized in that the force of the leg spring (20, 120) is lower, preferably is considerably less than the force of the opening spring (21, 212) acting on the sole holder (6, 106, 206). 11. Binding according to claim 1 and 3, characterized in that the leg spring (320) on the pivot axis (7) of the sole holder (6) pointing forward (in the direction of the sole holder) and, in elevation and in the projection onto the When viewed in the drawing plane, crossing legs (320a, 320b) are arranged, wherein, in the driving position and in the first phase of the voluntary opening, the downward pointing leg (320a) on a stop (22) of the sole holder (6) from below forth and the upward-pointing leg (320b) is supported from above on a bearing block-fixed stop (305a), so that the leg spring (320) acts as an opening spring and that the spring housing (311) also has a stop (311c), which is pivotable in the plane of the leg (320b) of the leg spring (320) supported on the bracket (305a) and which, in this position of the sole holder (6), is viewed in the height direction at a distance below of said leg (320b) the leg spring (320) is located, this stop (311c) in the second phase of the arbitrary opening, in which the locking part (12) in its position released from the locking recess (9b) of the locking rocker (9) is located, abuts against said leg (320b) and lifts it from the bearing block-fixed stop (305a) and, from this phase of arbitrary opening, urges the spring housing (311) into its closed position with the locking rocker (9), so that the leg spring (320) acts as a return spring is (Fig. 11-16). 12. Binding according to claim 11, characterized in that, viewed in the last phase of the swung-up sole holder (6) and spring housing (311), between the back surface (10b) of the counter-catch (10) and the locking part (12) of the spring housing (311 ) a There is a distance which is greater than the distance between the outer sides of the projection (9a) and the upper limit of the locking recess (9b) of the locking rocker (9), so that the locking part (12) through the closing spring housing (311) can get back into the area of the locking recess (9b) of the locking rocker (9) without overcoming a spring force. 13. Binding according to claim 11 or 12, characterized in that on the pivot axis (7) of the sole holder (6) a further leg spring (421) is arranged, the legs (421a, 421b) on the one hand on the bearing block (305) and on the other hand on the stop (22) of the sole holder (6) are supported and which continuously urges the sole holder (6) into the open position (FIGS. 15 and 16). 14. Binding according to claim 13, characterized in that the force of the first leg spring (320) (the return spring) is substantially less than the force of the further leg spring (421) (the opening spring acting on the sole holder). 15. Binding according to one of claims 11 to 14, in which the release lever simultaneously forms the spring housing, characterized in that the leg of the leg spring acting on the spring housing in the closing direction is supported on a stop provided on the release lever.

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