Heel piece for a ski binding

Abstract

Heel part (1) for a ski binding, wherein the heel part (1) comprises: • a base plate (10) adapted to be attached to a ski top (3) of a ski (2), for example by screwing it on, • a base body (20) attached to the base plate (10) which pivotably supports a heel holder (30), and • a ski brake (40) with two brake levers (41, 42), characterized in that • the base plate (10) pivotably supports the brake levers (41, 42) and forms a contact surface (11) for the sole (51) of a ski boot (50).

Description

[0001] The invention relates to the heel part of a ski binding, in particular an alpine ski binding. The ski binding can be designed as a freeride binding.

[0002] Freeride bindings are known to have a heel piece consisting of a base plate attached to the top of the ski with screws, a base body that is slidably mounted on the base plate and pivotally supports a heel holder, and a separate footplate attached to the base body. This footplate pivotally supports two brake levers of a ski brake. The pivoting mounting of the ski brake on the footplate, which, along with the base body, is slidable lengthwise relative to the base plate, results in a relatively large stance height—that is, the distance from the top of the ski to the contact surface of the footplate for the heel of the ski boot. A greater stance height slows down turn initiation and reduces edge pressure, or, more generally, worsens the skiing performance.

[0003] The invention is based on the objective of providing a heel piece for a ski binding that improves the ski's handling characteristics or reduces its stance height. This objective is achieved with the heel piece according to claim 1. Advantageous embodiments are described in the dependent claims, the description, and the figures.

[0004] Ski bindings are known to be used to attach a ski boot to a ski. For this purpose, ski bindings usually have a toe piece and a heel piece. The outsole of the ski boot has a projection at its toe end, which is gripped and held by the toe piece, and a projection at its heel end, which is gripped and held by the heel piece.

[0005] The invention relates to the heel piece for such a ski binding. The binding is preferably an alpine ski binding, i.e., not a touring binding and not a so-called pin binding. Accordingly, the heel piece can be designed as an alpine heel, i.e., not as a touring heel.

[0006] The heel piece comprises a base plate that is attached, or can be attached, to the ski's top surface. The ski has a top surface for attaching the binding or heel piece and a bottom surface with the base, which is configured for gliding on snow. The base plate can be screwed, glued, or otherwise attached to the ski's top surface. For example, the base plate may have holes or bores through which mounting screws, such as countersunk screws, are inserted into the ski, with the base plate being wedged between the screw heads and the ski's top surface, for example, with its underside resting against the ski's top surface.

[0007] The heel section further comprises a base body attached to the base plate, which pivotably mounts a heel holder, for example, about a horizontally arranged pivot axis or heel holder pivot axis. The heel holder can be pivoted back and forth between an open position and a closed position about the pivot axis, which is arranged transversely, in particular perpendicularly, to the longitudinal direction of the ski and, for example, parallel to the top of the ski. For example, the base body can laterally engage the heel-side projection of the sole, with the heel holder engaging this projection from above when the heel holder is in its closed position. The heel holder can have a retaining jaw designed to engage the rear end of the ski boot sole from above when the sole is in contact with a running surface.For example, the heel cup can have a spur against which the heel-side projection of the ski boot presses when entering the heel section, thus pressing it downwards and pivoting the heel cup from its open position to the closed position. Alternatively, a spring can be used to make the heel cup bistable, meaning it pivots either into the closed or open position when the heel cup is outside of its open or closed position.

[0008] The base body is, for example, a separate part from the base plate, which is guided so that it can be moved longitudinally relative to or from the base plate. By means of a (longitudinal) adjustment device, the base body, together with the heel holder, can be moved longitudinally relative to the base plate.

[0009] The heel section also features a ski brake with two brake levers. The ski brake can be moved from a braking position, in which the brake levers protrude beyond the underside of the ski, to a skiing position, in which the brake levers are positioned above the underside of the ski. The ski brake serves to prevent a ski from sliding uncontrollably down the slope if the ski detaches from the ski boot, for example, during a fall.

[0010] The base plate can pivotally mount the two brake levers, for example around a pivot axis, and form a contact surface for the sole, in particular the heel of the ski boot. Compared to the previously mentioned prior art, in which the mounting of the brake levers and the contact surface are formed by a footplate attached to the base body and longitudinally displaceable with the base body relative to the base plate, the standing height can be significantly reduced. By mounting the brake levers, or sections of the brake lever's pivot axis located on the pivot axis, to or by means of the base plate, a low standing height, such as between 6 and 15 mm, and especially between 10 and 15 mm, can be achieved. In the previously mentioned prior art, the standing height was 24 mm. The lower standing height improves the ski's handling characteristics.

[0011] The stand height is the vertical distance between the top of the ski or the underside of the base plate, and the contact surface of the heel part for the heel-side heel of the ski boot.

[0012] For example, the base body can be displaceable relative to the ski brake, in particular the pivot axis of the brake levers, and / or the ski brake, in particular the pivot axis of the brake levers, can be fixed in the longitudinal direction relative to the base plate. While the binding known from the prior art allows for greater adjustment ranges because the footplate, along with the ski brake and the base body, is displaceable in the longitudinal direction, the smaller adjustment range of the binding described herein is acceptable, since the position of the base body relative to the base plate in the longitudinal direction is generally set for a single skier, and no significant adjustment movements are expected after assembly and adjustment.

[0013] The base plate can, for example, form a longitudinal guide for the base body, configured for the longitudinal displacement of the base body relative to the base plate. The base plate or the plate body of the base plate can, for example, have at least one guide section, such as a guide rail, which interacts with at least one guide element of the base body. The base plate can have a guide section on each side, with the base body having a guide element on each side, each engaging one of the guide sections. For example, the base body can encompass the base plate. In further developments, the guide elements can encompass the guide elements of the base plate.

[0014] The adjustment device for the longitudinal position of the base body in relation to the base plate can, for example, be a releasable locking connection, a clamping device using screws, or a threaded spindle rotatably mounted on the base body, the thread of which engages threaded segments arranged one behind the other in the longitudinal direction on the top of the base plate.

[0015] The ski brake can have an actuating plate whose upper surface is designed to be pressed downwards by the sole of the ski boot, particularly the heel area, when the boot is inserted into the heel section. The actuating plate can be coupled to the brake levers in such a way that the brake levers pivot from the braking position to the skiing position when the footplate is moved downwards or towards the top of the ski.

[0016] In further developments, the brake arms can be formed from a common wire rod component that is rotatably mounted on the actuating plate about a first axis of rotation. The portion of the wire rod component pointing towards the actuating plate from the pivot axis or pivot axis sections can form a first lever arm, and the brake arms pointing in the opposite direction from the pivot axis or pivot axis sections can form a second lever arm. The free end of the brake arms can have a plastic cap with serrations to engage the snow in the braking position and improve braking performance. Making the cap from a plastic material also reduces the risk of injury and damage from the brake arms during transport.

[0017] In some embodiments, the actuating plate can be located above the contact surface of the base plate when the ski brake is in the braking position. When the ski boot enters the heel section, the actuating plate is pressed downwards and pivoted forwards around its pivot axis in the longitudinal direction of the ski, specifically in front of the front end of the base plate. In the skiing position, the actuating plate can be positioned in front of the front end of the base plate. The actuating plate can have a thickness that is less than or equal to the standing height. The first pivot axis can optionally be positioned in front of the front end of the base plate, at least in the skiing position, and also in the braking position of the ski brake.

[0018] The heel section also features a pivot arm that is rotatably mounted on the actuating plate about a second axis of rotation and on the base plate about a third axis of rotation. The first and second axes of rotation are arranged parallel to each other. The pivot axis and the third axis are also arranged parallel to each other.

[0019] In further developments, a spring, particularly a torsion spring, may be provided. The torsion spring can pre-tension the pivot arm relative to the base plate so that, when the actuating plate is not engaged, it moves the ski brake into the braking position or holds it there. When the actuating plate is pressed towards the top of the ski or downwards, the pre-tensioned torsion spring is further tensioned. When the ski boot is inserted into the heel pocket, the actuating plate is pressed downwards against the force of the torsion spring, while the torsion spring moves upwards when the ski boot is removed from the heel pocket. Accordingly, the ski brake pivots into the skiing position when the boot is inserted and into the braking position when the boot is removed.

[0020] In further developments, the base plate features a plate body, for example made of plastic, and a reinforcing structure, for example made of metal, which at least partially surrounds the pivot axis of the brake levers or the wire-formed part. The reinforcing structure can be designed as an insert or metal insert that is or will be inserted into the plate body. The reinforcing structure provides structural reinforcement to the base plate, enabling a compact design and an even lower profile. The reinforcing structure can be a stamped and bent part. The reinforcing structure can be inserted into the plate body from the underside of the base plate and attached to the plate body by a form-fit and / or force-fit connection.For example, the base plate or plate body can have holes or bores between the base body and the footplate, through which the base plate is attached to the ski by means of fastening screws, in particular by bolting. In further developments, the reinforcement structure can have holes or bores aligned with these holes or bores in the base plate, through which the fastening screws, with which the base plate is attached to the ski, extend. This gives the reinforcement structure an even better connection to the rest of the base plate or plate body and to the ski, thereby further increasing the structural strength of the base plate, especially in the area of ​​the ski brake. The loads associated with the ski brake can be absorbed by the reinforcement structure, relieving the plate body of these loads and allowing it to be designed more delicately for a lower standing height.

[0021] The base plate, or more specifically, the section of the plate body forming the running surface, can have an opening, particularly a groove-shaped one, on each of its two sides, especially its lateral sides (i.e., left and right sides in the longitudinal direction of the ski), through which a pivot axis section of the ski brake, in particular the brake lever, extends from an inner area located under the running surface to the outside. The opening can, for example, be open downwards, i.e., towards the underside of the plate body or towards the top of the ski, to allow the brake levers to be inserted into the opening during assembly of the heel piece. When the heel piece is attached to the top of the ski with the underside of the base plate, the top of the ski covers the opening, thus forming a channel extending from the inner area to the outside, in which the pivot axis section is pivotably arranged about the pivot axis.In some versions, no material may be arranged between the pivot axis section and the ski's top surface, or the pivot axis section may be directly supported by the ski's top surface. Alternatively, an intermediate part may be arranged between the pivot axis section and the ski's top surface, against which the pivot axis section can be supported. This intermediate part may be the reinforcement structure mentioned herein, a section thereof, or a separate part thereof.

[0022] The base plate, in particular the plate body, and / or the optional reinforcement structure can pivotally mount the brake brackets or their pivot axis sections. It is preferred that the pivot axis is located in the lower half or the half facing the top of the ski of the section of the base plate or the plate body that forms the tread surface. This allows for a compact yet stable design of the tread surface section of the base plate, both in terms of height.

[0023] The base plate, in particular the plate body, can have several through holes or bores through which the base plate is attached to the top of the ski by means of fastening screws that are screwed into the ski. For example, the base plate can have rear through holes for rear fastening screws and front through holes for front fastening screws.

[0024] The base plate, in particular the plate body, may have rear through-holes in its rear third or rear quarter for receiving the rear fastening screws. These rear through-holes may be located in the area of ​​the threaded segments into which the threaded spindle of the base body engages to form the adjustment mechanism. For example, two rear through-holes may be provided, one on one side and the other on the opposite side, i.e., on both sides, of the threaded segments or of an insert forming the threaded segments.

[0025] In one embodiment, the base plate, in particular the plate body, can have front through-holes, such as two through-holes, in its front half outside the tread surface for receiving the front fastening screws. The front through-holes can be located behind the tread surface, for example, directly behind or adjacent to it. Alternatively or additionally, the front through-holes can be arranged such that the base body, such as a first guide element and a second guide element of the base body, can be slid over the front through-holes and the front fastening screws. The front through-holes can be arranged on a first guide section and a second guide section formed by the plate body to guide the first and second guide elements of the base body.One of these through-holes can be located on the first guide section and the other on the second guide section. Because the base body can be slid over the front through-holes or front mounting screws, a compact, and especially short, design of the heel section is made possible.

[0026] In another embodiment, the base plate, in particular the plate body, can have through holes in the contact surface, such as two through holes, for receiving the front mounting screws. The arrangement of the through holes or mounting screws in the contact surface, which is preferably located in the front third of the plate body, enables a stable construction, since the front and rear through holes or mounting screws are relatively far apart. The front through holes can be arranged in close proximity to the pivot axis sections. For example, the center axes of the through holes can be located at a distance of less than or equal to 10 mm from the pivot axis on which the pivot axis sections of the ski brake are located.

[0027] Alternatively or additionally, the front through-holes can be arranged between the pivot axis or pivot axis sections of the ski brake and the rear end of the tread surface, i.e., the end of the tread surface facing the base body or the rear through-holes. Preferably, the front through-holes are arranged closer to the pivot axis section than to the rear end of the tread surface. This ensures particularly good dissipation of forces introduced by the ski brake and prevents the section of the plate body forming the tread surface from lifting off the top of the ski. More specifically, the front through-holes can be arranged between the pivot axis section of the ski brake and the third axis of rotation about which the pivot arm of the ski brake is rotatably mounted.

[0028] However, the front through-holes can alternatively be arranged between the pivot axis or pivot axis sections of the ski brake and the front end of the tread surface, i.e., the end of the tread surface that points away from the base body. Preferably, the front through-holes are arranged closer to the pivot axis section than to the front end of the tread surface. This ensures that forces introduced by the ski brake are dissipated particularly well and prevents the section of the plate body forming the tread surface from lifting off the top of the ski.

[0029] It is generally advantageous for the front through-holes to be arranged in the immediate vicinity of the pivot axis sections, so that by means of the screwing with the front fastening screws in the ski a sufficient holding force is generated on the footplate, so that a "lifting off" of the section of the base plate forming the tread surface from the top of the ski is prevented.

[0030] Furthermore, a reinforcing insert, made of metal for example, can be provided and inserted into the front through-holes. The reinforcing insert can, for example, have annular sections that fit into the front through-holes. The front fastening screw can extend through the annular section and the through-hole, preferably bearing against the annular section with its screw head. This reduces the risk of damage to the through-holes or the plate body from loads transmitted via the screw or screw head. For example, the reinforcing insert can have a connecting section linking the annular sections, which is, for example, recessed relative to the contact surface.The connecting section can include a U-shaped section that is recessed relative to the ski's top surface or the underside of the plate body. The U-shaped design of the section allows for a compact construction, particularly when the through-holes or mounting screws are located between the pivot axis of the ski brake and the rear end of the ski's top surface or the third pivot axis. For example, the pivot arm of the ski brake can be pivoted into the U-shaped section, i.e., between the two parallel legs of the "U," when the ski brake is moved into the driving position, and pivoted out of the U-shaped section when the ski brake is moved into the braking position.

[0031] The invention has been described with reference to several embodiments and examples. Exemplary embodiments are described below with reference to figures. The features disclosed therein advantageously further define the subject matter of the claims, both individually and in any combination thereof. The figures show: Figure 1 is a side view of a heel part of a ski binding from the prior art, Figure 2 is a side view of a first embodiment of the heel part of the ski binding described herein, Figure 3 is a perspective view of the heel part from Figure 2 Figure 4 shows a perspective view of a base plate and a ski brake of the heel part. Figure 2 From a slightly oblique angle, Figure 5 shows a perspective view of the parts. Figure 4 From a low angle, Figure 6 shows a perspective view of a reinforcement structure formed as a metal insert, Figure 7 shows another perspective view of the reinforcement structure made of Figure 6Figure 8 shows a perspective view of a second embodiment of a base plate with a ski brake, and Figure 9 shows an exploded view of the base plate and ski brake. Figure 8 .

[0032] Figure 1 Figure 1 shows a heel part 1 of a prior art ski binding with which a ski boot 50 can be fixed to a ski 2. The heel part 1 has a base plate 10 attached to a ski top surface 3 of the ski 2 by means of fastening screws 14. A base body 20 and a footplate 5 are mounted on the base plate 10 so as to be slidable in the longitudinal direction L of the ski. The footplate 5 is attached to the base body 20, so that the base body 20 and the footplate 5 together are slidable in the longitudinal direction L. A heel retainer 30 is attached to the base body 20 and can be positioned between an open position and a closed position ( Figure 1The heel holder 30 is pivotally mounted. It has a retaining jaw 31 which, in the closed position, presses down on a rear projection 52 of the ski boot 50. The footplate 5 has a contact surface 11 on which the sole 51 of the ski boot 50 rests when the ski boot 50 is inserted into the heel section 1. The ski brake 40, together with the footplate 5 and thus also together with the base body 20, is displaceable in the longitudinal direction L of the ski. This allows for a large range of movement in the longitudinal direction L. However, the Figure 1 The construction shown has a large standing height h1, that is, a distance from the top of the ski 3 to the footplate 11. In the Figure 1 In the example shown, the stand height can be 24 mm. Accordingly, the retaining jaw height h 2, i.e., the distance from the ski top 3 to the retaining jaw 31 in the closed position, is also large, such as 53 or 54 mm.

[0033] The in the Figures 2 to 7 first embodiment shown and the embodiment shown in the Figures 8 and 9 The second embodiment shown differs essentially in its drilling pattern for fastening screws 14a, 14b and in that the first embodiment has a reinforcing structure 15, whereas the second embodiment includes a reinforcing insert 60. Apart from these differences, the descriptions of the first embodiment also apply to the second embodiment and vice versa.

[0034] In the embodiments of the invention as described in the Figures 2 to 7 (first embodiment) or 8 and 9 (second embodiment), the standing height h1 is reduced, which positively influences the driving characteristics. In the embodiments shown, the standing height h1 can be between 6 and 15 mm, preferably between 10 and 15 mm, as exemplified in Figure 2This is illustrated. Therefore, the clamping height h1 can be reduced compared to the prior art, for example, by approximately 37% to 58% (with a clamping height between 10 and 15 mm) or even by approximately 37% to 75% (with a clamping height between 6 and 15 mm). The clamping jaw height h2 can be reduced accordingly and, for example, be between 35 and 45 mm (with a clamping height between 6 and 15 mm) or between 39 and 45 mm (with a clamping height between 10 and 15 mm).

[0035] The reduced standing height h 1 is made possible by the fact that the footplate 5, which is separate from the base plate 10, as shown in Figure 1The base plate 10, as shown, is omitted or its function is taken over by the base plate 10. The base plate 10 or its plate body 10a supports the brake levers 41, 42 or their pivot axis sections 41a, 42a pivotably about a pivot axis s. Furthermore, the base plate 10 forms the contact surface 11 for the sole 51 of the ski boot 50. The pivot axis s extends through the base plate 10, in particular between the contact surface 11 and the underside of the base plate 10 or the top surface 3 of the ski. In comparison to the one in Figure 1 In the prior art shown, the pivot axis s is offset downwards towards the top of the ski 3 and / or is located in the lower half, i.e. the half pointing towards the top of the ski 3, of the section of the base plate 10 or of a plate body 10a of the base plate 10 forming the tread surface 11.

[0036] How best to get from the Figures 4 and 5As can be seen in Figures 8 and 9, the ski brake 40 has a first brake lever 41 on a first (e.g., left) side and a second brake lever 42 on a second (e.g., right) side. The brake levers 41 and 42 are formed by a common wire fitting, which connects the first brake lever 41 and the second brake lever 42 via a U-shaped loop.

[0037] The invention not only has the advantage that the heel part 1 allows for a lower standing height h 1 and thus better driving characteristics, but also that the separate footplate 5 is eliminated and the base body 20 can be reduced in size, thereby reducing the mass and thus also the weight of the heel part 1.

[0038] The base plate 10 has a plate body 10a, made, for example, of plastic, which forms the tread surface 11, for example, in its front third. The plate body 10a of the first and second embodiments has lateral openings 10d below the tread surface 11, which are groove-shaped and open to the underside. When the base plate 10 is mounted on the ski's upper surface 3, the underside-facing part of the opening 10d, through which pivot axle sections 41a, 42a of the brake brackets 41, 42 are inserted during assembly, is covered by the ski's upper surface 3. The lateral openings 10d serve to receive pivot axle sections 41a, 42a of the brake brackets 41, 42 or of the common wire form part, or to support them around the pivot axis s. The brake lever 41, 42 is guided from outside the plate body 10a to the inside of the plate body 10a below the tread surface 11 via the side openings 10d.

[0039] The base plate 10 of the first embodiment shows, as can best be seen from the Figures 4 and 5 The plate body 10a, made of, for example, plastic, and a reinforcement structure 15 designed as an insert, made of, for example, metal, are recognizable.

[0040] Details of the reinforcement structure 15 are best seen in the Figures 6 and 7The reinforcement structure 15 has a plate-shaped main part 15a, which is arranged parallel to the underside of the plate body 10a. The plate-shaped main part 15a has wings 17a, 17b on each of its flanks, angled relative to the main part 15a, for example by 90°. The first wing 17a has a passage 17c for a first pivot section 41a, and the second wing 17b has a passage 17d for a second pivot section 42a of the wire form part that forms the brake brackets 41, 42. The passages 17c, 17d, which are aligned with the openings 10d and located on their inner side, are formed by the wings 17a, 17b being hook-shaped or by the wings 17a, 17b encompassing at least part of their circumferences of the pivot sections 41a, 42a.The passages 17c, 17d are open towards the underside, with the plate-shaped main part 15a arranged below the passages 17c, 17d and forming a support for the pivot axis sections 41a, 42a, holding them in the passages 17c, 17d. The plate-shaped main part 15a forms an intermediate part that is arranged between the pivot axis sections 41a, 42a and the ski top surface 3, and against which the pivot axis sections 41a, 42a can bear towards the ski top surface 3.

[0041] The angled wings 17a, 17b have projections 18 on their upper side, for example above the passages 17c, 17d, which are anchored in the plate body 10a of the base plate 10, which is made of, for example, plastic. For example, the projections 18 can have a serrated shape in order to be anchored in corresponding recesses of the plate body in a form-fit and / or force-fit manner.

[0042] The reinforcement structure 15 additionally has upwardly projecting projections 18 at its rear end, which are anchored in the plate body 10a. These projections 18 can also have a serrated shape in order to be positively and / or force-fitted in corresponding recesses of the plate body 10a. The rear projections 18 are angled relative to the main part 15a, for example by 90°.

[0043] In general, the projections 18 for anchoring into the plate body 10a of the base plate 10 can be pressed, glued or cast in.

[0044] The reinforcement structure 15 has, for example in front of the rear projections 18, a tongue 19 projecting upwards from the main part 15a, which is attached to the torsion spring 48 ( Figure 4The tongue 19 is supported or arranged behind the torsion spring 48 with respect to the longitudinal direction L. The tongue 19 can be arranged between the rear projections 18 and the torsion spring 48.

[0045] The reinforcing structure 15 has tabs 15b, 15c that project forward from the plate-shaped main part 15a. The tabs 15b, 15c have holes or bores 16 through which the reinforcing structure 15 can be attached to the plate body 10a. The plate-shaped main part 15a may alternatively or additionally have such holes or bores 16.

[0046] The plate-shaped main part 15a has bores or holes 16a through which the fastening screws 14, with which the base plate 10 is attached to the ski 2, extend. The reinforcing structure 15, or its plate-shaped main part 15a, is, in the assembled state, encased or clamped between the ski top 3 and the base plate 10. This further improves the stability of the base plate 10 and the ski brake 40 and allows for an even greater reduction in the standing height h1.

[0047] The ski brake 40 features, for example in the Figures 4, 5 , 8 and 9The first embodiment shows brake brackets 41, 42 formed from a common wire-shaped component. This component has pivot sections 41a, 42a that extend through openings 10d and / or passages 17c, 17d and are pivotably mounted there about the pivot axis s. The pivot sections 41a, 42a of the first embodiment are supported downwards by the plate-shaped main part 15a. Forwards, backwards, and upwards, the pivot sections 41a, 42a are supported by the passages 17c, 17d of the wings 17a, 17b, which are, for example, U-shaped. The pivot sections 41a, 42a of the second embodiment are supported forwards, backwards, and upwards by the openings 10d and can also be supported directly by the ski top surface 3 or an intermediate part.

[0048] The wire-formed part has a pivot section 45 on which the wire-formed part is rotatably mounted about the first pivot axis d1 on the actuating plate 46. A first, for example elongated, connecting section 43, which is angled with respect to the pivot section 45 and the first pivot section 41a, connects the pivot section 45 to the first pivot section 41a, and a second, for example elongated, connecting section 44, which is angled with respect to the pivot section 45 and the second pivot section 42a, connects the pivot section 45 to the second pivot section 42a. The pivot section 45 connects the first and second connecting sections 43, 44. The connecting sections 43, 44 project in opposite directions from the pivot axis s than the brake brackets 41, 42. At their free ends, the brake brackets 41, 42 have toothed plastic caps 41b, 42b.

[0049] The ski brake 40 also features a swivel arm 49 ( Figures 2 , 4 , 8 and 9 The actuator plate 46 is rotatably mounted or supported about a second axis of rotation d2 on the actuator plate 46. The pivot arm 49 is additionally rotatably mounted or supported about a third axis of rotation d3 on the base plate 46, such as the plate body 10a or the reinforcement structure 15, for example by means of a bearing shaft on the third axis of rotation. The first axis of rotation d1 is arranged parallel to and spaced apart from the second axis of rotation d2. The third axis of rotation d3 is arranged parallel to and spaced apart from the pivot axis s. This prevents the actuator plate 46 from rotating freely about the first axis of rotation d1. Instead, this arrangement holds the actuator plate 46 in defined pivot positions relative to the base plate 10.

[0050] A retaining plate 47, which may be made of metal, for example, is arranged and attached to the underside of the actuating plate 46. The retaining plate 47 holds the pivot section 45 of the wire-formed part and / or a bearing section of the swivel arm 49, which rotatably supports it about the second axis of rotation d2, to the actuating plate 45.

[0051] When the actuating plate 46 is moved downwards, i.e., towards ski 2, the wire form is pivoted about the pivot axis s in a first direction, thereby pivoting the brake levers 41, 42 from a braking position to a driving position. When the actuating plate 46 is moved upwards, i.e., away from ski 2, the wire form is pivoted about the pivot axis s in a second direction, opposite to the first direction, thereby pivoting the brake levers 41, 42 from the driving position to the braking position.

[0052] A torsion spring 48 is supported on the base plate 10, for example on the plate body 10a or the reinforcement structure 15, on one side and on the swivel arm 49 on the other. The torsion spring 48 can be arranged on the bearing shaft or its coils can run around the bearing shaft ( Figure 5 ; in Figure 9(only indicated). This ensures a secure hold for the torsion spring 48. The torsion spring 48 is pre-tensioned and pushes the pivot arm 49 and, via the actuating plate 46, the wire fitting into the braking position when the actuating plate is not actuated, e.g., when the ski boot 50 is moved out of the binding. When, e.g., when the ski boot 50 is inserted into the binding, the actuating plate 46 is moved downwards, i.e., towards the ski 2, the pivot arm 49 is also pivoted towards the ski 2, thereby further tensioning the pre-tensioned torsion spring 48 and pivoting the ski brake 40 or the wire fitting from the braking position into the skiing position.

[0053] Optionally, the base plate 10 or, alternatively, the actuating plate 46 can have a first actuating surface 13a for the first connecting section 43 and a second actuating surface 13b for the second connecting section 44 of the wire-formed part. During the movement of the wire-formed part from the braking position to the driving position, the first connecting section 43 slides along the first actuating surface 13a and the second connecting section 44 slides along the second actuating surface 13b, the actuating surfaces 13a, 13b being shaped or inclined such that—for example, shortly before reaching the driving position—they elastically press the first and second connecting sections 43, 44 of the wire-formed part against each other, thereby pressing the brake levers 41, 42 against each other in addition to their pivoting movement. This ensures that the brake levers 41, 42 do not interfere with cornering in the driving position.During the movement of the wire-shaped part from the driving position to the braking position, the first connecting section 43 slides along the first actuating surface 13a and the second connecting section 44 slides along the second actuating surface 13b, whereby the first and second actuating surfaces 13a, 13b release the first and second connecting sections 43, 44, causing them to move elastically away from each other. This movement, in addition to their pivoting motion, also moves the brake levers 41, 42 away from each other. This allows the brake levers 41, 42 to pivot past the outer flanks of the ski into the braking position.

[0054] The heel part 1 has an adjustment device with which the position of the base body 20 relative to the base plate 10 can be adjusted in the longitudinal direction L. In the example shown, the base plate 10 has threaded segments 10c arranged one behind the other in the longitudinal direction L, into which threads of a threaded spindle 22 are engaged ( Figure 3 ), whose longitudinal axis is arranged in the longitudinal direction L and which is rotatably mounted on the base body 20, engages. The threaded segments 10c can be formed directly from the plate body 10a, but they are advantageously formed from an insert that is inserted into the plate body 10a and thus, for example, snapped into place ( Figures 3 and 9The insert can be made of a different material, such as metal, than the plate body 10a, which is preferably made of plastic. Rotation of the threaded spindle 22 causes a displacement of the base body 20 relative to the base plate 10, in particular also the contact surface 11 and the pivot axis s. More specifically, rotation of the threaded spindle 22 in a first direction of rotation causes a displacement of the base body 20 forward, i.e., towards the contact surface 11, while rotation of the threaded spindle 22 in a second direction of rotation causes a displacement of the base body 20 backward, i.e., away from the contact surface 11.

[0055] The base plate 10 has elongated guide sections 12a, 12b, such as guide rails, on its flanks, which are engaged by guide elements 21a, 21b of the base body 20 and guide the base body 20 linearly in the longitudinal direction L. The guide sections 12a, 12b are designed such that the base body 20 can be slid onto the base plate 10 from the rear, and in particular only from the rear. The guide sections 12a, 12b terminate before the contact surface 11.

[0056] The actuating plate 46 is located above the footplate 11 in the braking position of the ski brake 40. This ensures that the heel area of ​​the ski boot sole 50 reliably actuates the actuating plate 46 when the skier steps into the binding. In the skiing position of the ski brake 40, the actuating plate 46 is located in front of the footplate 11, specifically in front of the baseplate 10. This ensures that the actuating plate 46 releases the footplate 11 and does not negatively affect the low standing height h1. Ideally, the height of the actuating plate 46 is less than the standing height h1.

[0057] The heel holder 30 is pivoted around a heel holder pivot axis 33, as exemplified in the Figures 2 and 3For the first and second embodiments, the heel holder 30 is rotatably mounted on the base body 20 and has one or more retaining jaws 31 which, as described above, secure the rear projection 52 in the closed position of the heel holder 30 from above. The heel holder pivot axis 33 is arranged perpendicular to the longitudinal direction L of the ski 2 or the base plate 10 and parallel to the upper surface 3 of the ski or the underside of the base plate 10 or the plate body 10a. The heel holder 30 is positioned between a closed position, which is in the Figures 1 and 2The heel holder 30 is shown and can pivot back and forth between an open position. In particular, the heel holder 30 can be designed to be bistable by means of a spring 34, so that the heel holder 30 is pivoted from a position between the open and closed positions into either the open or the closed position by the force of the spring 34. For example, the base body 20 can have a cam against which a pressure piece, on which one end of the spring 34 is supported, is pressed. The other end of the spring 34 is supported, for example, on the heel holder 30 or a part rigidly connected to it. The spring 34 is preferably a helical spring pre-tensioned under compression. The cam is designed such that, in conjunction with the pressure piece and the compressive force of the spring 34, it moves the heel holder 30 bistablely either into the open or the closed position.

[0058] The first and second embodiments have rear through-holes in the rear third or rear quarter of the plate body 10a, arranged on both sides of the insert forming the threaded segments 10c. These rear through-holes are for receiving the rear fastening screws 14a. Furthermore, the first and second embodiments have front through-holes for receiving front fastening screws 14b. The fastening screws 14a and 14b are screwed into the ski and fasten the heel part to the upper surface 3 of the ski.

[0059] In the first embodiment, the front through-holes, located outside the tread surface 11 in the front half, are positioned directly behind the tread surface 11. Furthermore, the front through-holes on the first and second guide sections 12a, 12b of the plate body 10a are arranged such that the base body 20, with its first and second guide elements 21a and 21b, can be slid over the front through-holes and the front actuating screws 14b.

[0060] In the second embodiment, the plate body 10a has front through-holes in the tread surface 11 for receiving the front fastening screws 14b. The front through-holes are arranged between the pivot axis s and the rear end of the tread surface 11. The front through-holes are located closer to the pivot axis s than to the rear end of the tread surface 11. More specifically, the front through-holes are arranged between the pivot axis s and the third axis of rotation d3, about which the pivot arm 49 of the ski brake 40 is rotatable. In a modification of the second embodiment, the front through-holes can be arranged between the pivot axis s and the front end of the tread surface 11.In the second embodiment and its modification, it is generally advantageous to provide the front through-holes in the immediate vicinity of the pivot axis s or at a distance of the central axis of the front through-holes from the pivot axis s that is less than or equal to 10 mm. This improves the stability of the section of the base plate 10 forming the tread surface 11 and prevents it from "lifting off" the ski surface 3.

[0061] How best to Figure 9As can be seen, a reinforcing insert 60 is provided, comprising a first annular section 61 and a second annular section 62, and a connecting section 63 linking the annular sections 61 and 62. The reinforcing insert 60 is inserted into the plate body 10a such that it is recessed with respect to the tread surface 11, i.e., it does not protrude beyond the tread surface 11. The front fastening screws 14b, which are screwed into the ski and fasten the heel part 1 to the ski top 3, extend through the annular sections 61 and 62, which are inserted into the front through-holes, and through the front through-holes.

[0062] The connecting section 63 has a U-shaped section which is set back from the underside of the plate body 10a with respect to the tread surface 11 and is arranged such that the pivot arm 49 of the ski brake 40 is pivoted into the U-shaped section when the ski brake 40 is moved into the driving position, and is pivoted out of the U-shaped section when the ski brake 40 is moved into the braking position. Reference symbol list 1 heel section 30 Heel holder 2 ski 31 Holding jaws 3 ski top 32 Footprint 4 ski underside 33 Heel holder pivot axis 5 Footplate 34 Feather 10 Base plate 40 ski brake 10a plate body 41 first brake lever 10b mark 41a first swivel axle section 10c Threaded segments 41b plastic cap 10d opening 42 second brake lever 11 Performance area 42a second swivel axle section 12a first guide section / guide rail 42b plastic cap 43 first connecting section 12b second guide section / guide rail 44 second connecting section 45 Rotary axis section 13a first activity area 46 Actuating plate 13b second operating area 47 Mounting plate 14a rear mounting screws 48 Torsion spring 14b front mounting screws 49 Swivel arm 15 Deployment / Reinforcement Structure 15a Main part 50 ski boot 15b tab 51 sole 15c tab 52 projection 16 Drill / Hole 16a Drill / Hole 60 Reinforcement deployment 17a first wing 61 first ring-shaped section 17b second wing 62 second ring-shaped section 17c first round 63 Connection section 17d second round 64 U-shaped section 18 projection 19 Tongue d 1 first axis of rotation d 2 second axis of rotation 20 basic body d 3 third axis of rotation 21a first guide element h 1 Standing height 21b second guide element h 2 Jaw height 22 threaded spindle L (Ski) longitudinal direction s Swivel axis

Claims

1. Heel part (1) for a ski binding, the heel part (1) comprising: • a base plate (10) adapted to be attached to a ski top (3) of a ski (2), for example by screwing it on, • a base body (20) attached to the base plate (10) which pivotably supports a heel holder (30), and • a ski brake (40) with two brake levers (41, 42), characterized by the fact that • the base plate (10) pivotably mounts the brake levers (41, 42) and forms a contact surface (11) for the sole (51) of a ski boot (50).

2. Heel part (1) according to claim 1, characterized by the fact that the base body (20) is displaceable in a longitudinal direction (L) with respect to the ski brake (40) and the base plate (10) and / or the ski brake (40) is not displaceable in a longitudinal direction (L) with respect to the base plate (10).

3. Heel part (1) according to claim 1 or 2, characterized by the fact thatthe base body (20) encompasses the base plate (10), wherein, for example, the base body (20) has a first, in particular elongated, guide section (12a) and a second, in particular elongated, guide section (12b), and the base body (20) encompasses the first guide section (12a) with a first guide element (21a) and the second guide section (12b) with a second guide element (21b).

4. Heel part (1) according to one of claims 1 to 3, characterized by the fact thatthe ski brake (40) has an actuating plate (46) whose upper surface is designed such that it is pressed downwards or towards the ski (2) by the sole (51) of the ski boot (50) when entering the heel part (1), thereby pivoting the brake levers (41, 42) from a braking position to a driving position, preferably that the ski boot (50) with its sole (51), in particular its underside, rests on the tread surface (11) when the brake levers (41, 42) are in the driving position.

5. Heel part (1) according to claim 4, characterized by the fact that the brake levers (41, 42) are formed from a wire forming part which is rotatably mounted on the actuating plate (46) about a first axis of rotation (d1), wherein the first axis of rotation (d1) is arranged, for example, in front of the front end of the base plate (10) when the brake levers (41, 42) are in the driving position or the actuating plate (46) is pressed downwards.

6. Heel part (1) according to claim 5, characterized by a pivot arm (49) which is rotatably mounted on the actuating plate (46) about a second axis of rotation (d2) and rotatably mounted on the base plate (10) about a third axis of rotation (d3), and preferably by a spring, for example a torsion spring (48), which preloads the pivot arm (46) with respect to the base plate (10) so that it moves the actuating plate (46) upwards when the ski boot (50) is removed from the heel part (1) or moves the brake levers (41, 42) from the driving position to the braking position.

7. Heel part (1) according to any one of claims 1 to 6, characterized by the fact that the standing height (h1) is between 6 and 15 mm, for example between 10 and 15 mm, where the standing height (h1) is the vertical distance between the top side (3) of the ski (2) or the underside of the base plate (10) and the tread surface (11).

8. Heel part (1) according to any one of claims 1 to 7, characterized by the fact thatthe base plate (10) comprises a plate body (10a) formed from plastic and a reinforcing structure (15), for example a metal insert, inserted into the plate body (10a), which at least partially surrounds a pivot axis (s) or pivot axis sections (41a, 42a) of the brake brackets (41, 42), wherein it is preferred that the reinforcing structure (15) is inserted into the plate body (10a) from below and is attached to the plate body (10a) in a form-fit and / or force-fit manner.

9. Heel part (1) according to any one of claims 1 to 8, characterized by the fact thatThe base plate (10) or the section forming the tread surface (11) of a plate body (10a) of the base plate (10), for example made of plastic, has on both sides an opening (10d), in particular a groove-shaped opening, which is open towards the underside of the plate body (10a) or towards the top of the ski (3) and through which a pivot axis section (41a, 42a) of the ski brake (40) extends outwards, wherein it is preferred that the opening (10d) facing downwards is covered by the top of the ski (3) when the heel part (1) is mounted on the ski (2).

10. Heel part (1) according to any one of claims 1 to 9, characterized by the fact thatthe base plate (10) pivotably supports the brake brackets (41, 42) or pivot axis sections (41a, 42a) of the brake brackets (41, 42) about a pivot axis (s), wherein the pivot axis (s) is arranged in the lower half or half of the section of the base plate (10) or of a plate body (10a) of the base plate (10) that forms the tread surface (11) towards the top of the ski (3).

11. Heel part (1) according to any one of claims 1 to 10 characterized by the fact that The base plate (10) has rear through holes in the rear third or rear quarter, which are arranged in particular on both sides of threaded segments into which a threaded spindle (22) of the base body (20) engages, for receiving rear fastening screws (14a).

12. Heel part (1) according to one of claims 1 to 11, characterized by the fact thatthe base plate (10) has front through holes in the front half outside the tread surface (11) for receiving front fastening screws (14b), preferably that the front through holes are arranged directly behind the tread surface (11) and / or such that the base body (20), for example a first guide element (21a) and a second guide element (21b), can be slid over the front through holes and the front fastening screws (14b).

13. Heel part (1) according to any one of claims 1 to 12, characterized by the fact that the base plate (10) has front through holes in the platform (11) for receiving front fastening screws (14b), the front through holes being arranged in close proximity to the pivot axis sections (41a, 42a).

14. Heel part (1) according to claim 10 or 13, characterized bya reinforcing insert (60), for example made of metal, which is inserted into the front through-holes, wherein the reinforcing insert (60) has, for example, annular sections (61, 62) which are inserted into the front through-holes, and a connecting section (63) connecting the annular sections (61, 62), wherein preferably the connecting section (63) comprises a U-shaped section into which a pivot arm (49) of the ski brake (40) is pivoted when the ski brake (40) is moved into the driving position, and out of which the pivot arm (49) is pivoted when the ski brake (40) is moved into the braking position.

15. Heel part (1) according to any one of claims 1 to 14, characterized by the fact thatthe heel part (1) is part of an alpine ski binding or an alpine heel and / or that the heel holder (30) has a retaining jaw (31) designed to engage the rear end of the sole (51) of the ski boot (50) from above when the sole (51) is in contact with the tread surface (11).

Images