Toe piece for a ski binding with a tread section

Abstract

Front jaw (1) for a ski binding (2) for holding a ski boot (3) on a ski (4), the front jaw comprising: a main body (10) on which a first sole holder (11a) and a second sole holder (11b) are pivotally arranged and which has a receiving section (12) with a passage (12a) which receives at least one spring element (20a, 20b) which acts with one side on the first sole holder (11a) and clamps it into a holding position and which acts with the other side on the second sole holder (11b) and tensions it into a holding position, wherein the sole holders (11a, 11b) can be pivoted from the respective holding position by tensioning the spring element (20a, 20b) into a release position in which the ski boot (3) can be released from the toe piece (1), characterized in that the main body (10) has a tread portion (13) which is arranged below a forefoot region (3a) of the ski boot (3), wherein the tread portion (13) and the receiving portion (12) are formed in one piece by the main body (10).

Description

[0001] The invention relates to the toe piece of a ski binding, in particular an alpine ski binding. The ski binding can be designed as a freeride binding. The toe piece of the ski binding serves to hold a ski boot, in particular the toe-end, on a ski. In addition to the toe piece, a ski binding can comprise a heel piece for holding a heel-end of a ski boot on the ski. A heel piece suitable for the toe piece described herein is described, for example, in German patent application No. 10 2024 124 939.0.

[0002] EP 2 540 356 B1 discloses a boot holding unit of a ski binding for securing the toe-end of a ski boot. The front holding unit is arranged on a base plate with at least one rear holding unit, the base plate being pivotable upwards about a front transverse axis, making the ski binding suitable for ski touring. For a downhill run, the base plate is fixed to the top side of the ski. The cited document alternatively proposes arranging the front boot holding unit and the rear boot holding unit directly on the top side of the ski in order to releasably fix the ski boot with its sole directly to the ski. While the design with a base plate results in a relatively high stand height, a design with direct attachment of the front holding unit to the top side of the ski results in a stand height of 0 and presents challenges with regard to attachment.

[0003] The outsole of a ski boot extends beyond the outer shell of the ski boot at the toe and heel ends. These projecting sections of the outsole are gripped by at least one sole holder of the ski binding, i.e., the toe piece and the heel piece. These parts of the outsole are subject to certain tolerances. Examples include DIN ISO 5355 and DIN ISO 23223. These standards ensure that the ski boots are compatible with the associated safety bindings and that proper release is guaranteed in the event of a fall. Within the framework of the aforementioned standards, the distance between the upper surface of the front outsole of the ski boot and the lower contact surface of the ski boot sole with the base plate of the ski binding can vary within a range of approximately 18 mm (minimum) to 20 mm (maximum) (19 mm + / - 1 mm for DIN ISO 5355; 19 mm + / - 0.75 mm for DIN ISO 23223).For example, since the toe piece of a ski binding is usually designed to hold the protruding part of the outsole (so-called heel) when its upper surface is at a vertical distance from the contact surface of the ski boot sole that is between the minimum and the maximum, play can occur between the toe piece and the ski boot, especially when the distance corresponds to the minimum.

[0004] The present invention is based on the object of providing a toe piece for a ski binding for holding a ski boot on a ski, which enables a stable and compact design. Furthermore, the ski characteristics of the toe piece are to be improved. In particular, a secure attachment of the toe piece to the top of the ski is to be possible.

[0005] The problem is solved by the subject matter of claim 1. Advantageous further developments emerge from the dependent claims, the description, and the figures.

[0006] The invention relates to a toe piece for a ski binding for holding a ski boot on a ski. The toe piece or the ski binding can be designed as an alpine ski binding, in particular as a freeride binding.

[0007] Ski bindings are known for attaching a ski boot to a ski. Ski bindings typically have a toe piece, often referred to as the toe piece, and a heel piece. The outsole of the ski boot has a protrusion at its toe end, which is gripped and held by the toe piece, and a protrusion at its heel end, which is gripped and held by the heel piece. The binding is preferably an alpine ski binding, i.e., not a touring binding, which can be designed, for example, as a so-called frame binding or pin binding. Accordingly, the toe piece can be designed as an alpine toe piece, i.e., not as a touring toe piece.

[0008] The toe piece has a main body on which a first sole holder and a second sole holder are pivotably arranged. The first sole holder can be pivotably arranged about a first vertical pivot axis and the second sole holder can be pivotably arranged about a second vertical pivot axis. The first sole holder and the second sole holder are pivotable with respect to the main body and in particular also with respect to one another. The first sole holder can be designed such that it engages around a part of the outsole at the toe end on one side, wherein the second sole holder can be designed such that it engages around and holds a part of the outsole on the other side at the toe end.The first sole holder and the second sole holder can be pivoted from a holding position in which they can each engage a part of the toe end of the ski boot into a release position in which the first sole holder or the second sole holder is released from engagement with the ski boot, whereby the ski boot is released from the binding or the toe piece, for example in the event of a fall.

[0009] The main body has a receiving section, which can be designed as a hollow cylinder, for example. The receiving section forms a passage in which at least one spring element is received, one side of which acts on the first sole holder and clamps it into a holding position, and the other side of which acts on the second sole holder and clamps it into a holding position. The spring element can preferably be a compressive helical spring. The spring element can generally be any type of spring suitable for storing energy and executing movements, such as rubber or elastomer springs or pneumatic spring elements. Furthermore, a single spring element can be provided, for example, which acts with one end on the first sole holder and the other end on the second sole holder.Alternatively, two or more such spring elements can be provided, with the end of one spring element acting on the first sole holder and the end of the other spring element acting on the second sole holder. For example, one end of one spring element and one end of the other spring element can point toward each other and act on each other.

[0010] The first sole holder and the second sole holder can be pivoted from their respective holding positions into their release positions by tensioning the spring element or at least one spring element. If the spring element is a compression spring, the spring element is tensioned under pressure. Ideally, the spring element can be pre-tensioned and is tensioned even more when the first sole holder or the second sole holder moves from the holding position. The pre-tension of the at least one spring element can be adjusted, for example, using an adjusting screw, which allows the release characteristics of the toe piece to be adjusted for releasing the ski boot.

[0011] The main body has a tread portion arranged beneath a forefoot region, in particular only beneath the forefoot region of the ski boot. The sole of the ski boot, when attached to the toe piece, can bear against the tread portion directly or indirectly, for example via a tread plate. The tread portion is located between the underside of the sole of the ski boot and the top side of the ski. The tread portion can extend rearward or toward the heel portion of the ski binding, but is not connected to the heel portion other than via the connection via the ski. The rear end of the toe piece, in particular of the tread portion, is located in the front half, preferably in the front third, of the ski boot.

[0012] The underside of the main body, especially the tread section, is configured to rest on the top side of the ski when the toe piece is attached to the ski.

[0013] In the toe piece according to the invention, the tread section and the receiving section are formed as one piece from the main body. The main body, including the tread section and the receiving section, is thus a monolithic body. The main body can be formed, for example, from a fiber-reinforced plastic. The one-piece design of the main body increases its stability. Furthermore, a compact design is achieved because connecting elements between the receiving section and a separate tread section are eliminated. The compact design allows the stand height to be reduced, which in turn improves the handling characteristics of a ski equipped with such a toe piece. By attaching the toe piece directly to the top of the ski, secure attachment and a low stand height can be achieved.

[0014] The main body can have a connecting section between the tread section and the receiving section, which integrally connects the tread section and the receiving section. Fastening screws can be provided for attaching the toe piece to the top of the ski. For example, at least one fastening screw can be provided in the area of ​​the tread section, i.e., behind the connecting section. Furthermore, at least one fastening screw can be provided in front of the connecting section, i.e., on the side of the connecting section facing away from the tread section. Thus, the toe piece can be attached to the top of the ski both in front of and behind the connecting section of the main body using connecting screws. This allows for a very stable attachment of the toe piece to the top of the ski.

[0015] In embodiments, the at least one spring element can be a compression spring, wherein a longitudinal axis of the at least one compression spring, i.e. the axis around which the compression spring or a spring wire of the compression spring winds, is arranged transversely, in particular perpendicular to the longitudinal direction of the toe piece. The longitudinal direction of the toe piece corresponds to the longitudinal axis of the ski. The longitudinal direction of the toe piece extends from the rear end of the toe piece, i.e. from the tread section to the front end of the toe piece. At least one spring element arranged transversely, in particular perpendicular to the longitudinal direction of the toe piece, in particular a compression or helical spring, can also be referred to as a transverse spring. A transverse spring has the advantage that it can act with a first end on the first sole holder and with the second end on the second sole holder.

[0016] The toe piece can have a tread plate that is arranged on the side of the tread section facing upwards, i.e. towards the ski boot, and in particular forms a tread surface for the forefoot area of ​​the ski boot. Via the tread plate, a force acting from the ski boot towards the top of the ski can be transmitted into the tread section and from there to the top of the ski. The tread plate has the advantage that it can be made of a different material than the tread section or the main body. For example, the tread plate can be a tread plate made of metal. The tread plate can protect the tread section from damage caused by the underside of the ski boot. The tread plate can influence the release behavior of the toe piece because, through the suitable choice of material, it defines a coefficient of friction between the tread plate and the forefoot area of ​​the ski boot or its sole.The tread plate can be arranged on and / or adjacent to the tread section, in particular on its upper side. In particular, the tread plate can have a smaller or significantly smaller thickness than the tread section.

[0017] Preferably, the footplate can be connected to the main body, in particular by a form-fitting connection, or snapped into place. This allows the footplate to be securely attached to the main body, even if the toe piece is not yet attached to the top of the ski.

[0018] The tread plate can have a wing on each of the two sides, i.e. on a first side and a second side (in particular on the left or right), wherein the wings encompass the main body, in particular in the area below the receiving section for the at least one spring element. In particular, the wings can encompass the connecting section and the area below the receiving section. The area below the receiving section is located between the underside of the toe piece and the receiving section of the at least one spring element or the spring element. The area arranged below the receiving section, in particular the area in which a recess for receiving a fastening base of the toe piece can be arranged, can be arranged between the two wings. The wings are positively connected to the main body, in particular snapped.In particular, the wings ensure that the tread plate is securely attached to the main body. In further developments, the wings can also serve to bridge the connecting section and additionally connect the tread section to the area below the receiving section of the main body. The wings can therefore provide additional stability to the connecting section.

[0019] The main body can have a recess on each side, particularly in the area below the receiving section. The wings can each be arranged in one of these recesses, which are particularly adapted to the shape of the respective wing. For example, the first wing can be arranged in a first recess and the second wing in a second recess.

[0020] In embodiments with a tread plate, this can form a tread surface for the forefoot area of ​​the ski boot. Alternatively, the tread section can form a tread surface for the forefoot area of ​​the ski boot, especially if no tread plate is provided.

[0021] The stand height mentioned here is the vertical distance between the top surface of the ski or the underside of the tread section and the contact surface for the forefoot area of ​​the ski boot. The stand height is thus the vertical distance between the top surface of the ski or the underside of the tread section and the contact surface between the tread surface and the ski boot. The toe piece design described here allows for a stand height between 8 and 17 millimeters. The stand height is preferably between 8 and 17 millimeters, more preferably between 8 and 13 millimeters. Such stand heights have a positive effect on the ski characteristics, as a low stand height of the ski binding allows for a more direct transfer of power from the ski boot to the ski.

[0022] In further developments, the tread section or the footplate, or the tread section and the footplate, can have at least one bore for receiving a fastening screw, with which the toe piece can be fastened with its underside to the top of the ski. For example, the tread section and / or the footplate can have two such bores, which are arranged, for example, laterally offset from the center of the tread section. The bores mentioned here are through holes that do not necessarily have to be produced by drilling, but can be created, for example, during primary shaping, in particular during injection molding of the main body or the footplate, or during forming, for example during bending or stamping of the footplate.

[0023] The at least one bore in the tread plate and / or the tread section can have a countersink, in particular a conical countersink, for receiving a screw head of the fastening screw. Ideally, this is a countersunk head that can be completely accommodated in the countersink. The countersink can be a conically shaped or unshaped section of the tread plate that extends into an underlying countersink formed by the tread section. By means of the fastening screw, the tread plate and the tread section can be clamped between the screw head and the upper side of the ski. The screw can have a shaft with a thread that is or is screwed into the ski.

[0024] The toe piece can, for example, have a fastening base that can be brought into a holding engagement with the main body. The fastening base can have at least one bore for receiving a fastening screw with which the fastening base can be fastened with its underside to the upper side of the ski. For example, two such bores and thus two such fastening screws can be provided, which can be arranged laterally offset in particular with respect to the center of the fastening base. The main body can be fastened to the fastening base with a positive holding engagement, in particular when the fastening base is fastened to the upper side of the ski. The positive holding engagement can be produced or can be produced, for example, by means of a movement of the main body with respect to the fastening base along the longitudinal direction of the ski or of the main body.For example, the main body can be placed on the mounting base and then moved longitudinally to create the positive holding engagement.

[0025] Preferably, the main body and fastening base are configured such that a movement of the main body relative to the fastening base along the longitudinal direction causes the main body, in particular the underside of the main body, to be pressed against the upper side of the ski. For example, the main body can thereby be clamped between the fastening base and the upper side of the ski, thereby establishing the retaining engagement. To prevent the retaining engagement from being released by a movement along the longitudinal direction in the opposite direction, the main body can be fixed to the upper side of the ski by means of the fastening screws for the tread section, whereby displacement along the longitudinal axis is no longer possible.

[0026] The connecting section, which integrally connects the receiving section and the tread section, can be formed in the longitudinal direction of the toe piece between the tread section and the fastening base to which the main body is or can be fastened, or a recess in which the fastening base is or can be arranged. This allows the toe piece to be fastened to the top of the ski with at least one screw arranged in front of the connecting section and at least one screw arranged behind the connecting section. This advantageously ensures that the toe piece is easy to install yet securely fastened to the ski.

[0027] The connecting section can, for example, form a wall which delimits or closes off the recess towards the tread section. Towards the front, the recess can be delimited or closed off by a front wall. Ideally, the recess can be delimited or closed off laterally by a side wall. The recess can be delimited above by the receiving section. The main body can be open on the underside of the main body, which faces the top of the ski when assembled. The fastening base can be inserted into the recess via this opening when the toe piece is attached to the top of the ski. Accordingly, the fastening base can be arranged in the recess when the main body is attached to the fastening base. When the main body is attached to the fastening base, the main body can surround the fastening base, preferably completely surround it.This prevents, or at least significantly impedes, the penetration of snow, ice, or debris into the recess. Furthermore, the rear wall, the front wall, and the two side walls can form a perimeter that rests on the top of the ski when the toe piece is attached to the ski.

[0028] In further developments, one of the fastening base and the main body can have at least one projection, wherein the other of the fastening base and the main body interacts with the at least one projection such that a displacement of the main body with respect to the fastening base along the longitudinal direction causes the main body to be pressed by the fastening base against the upper side of the ski and in particular to be clamped between the fastening base and the upper side of the ski.

[0029] The recess can be enclosed laterally by one of the side walls formed by the main body, in particular mentioned above, wherein such a projection extends from each of the side walls into the recess, in particular transversely to the longitudinal direction.

[0030] A gap can be formed between the front wall and the at least one projection of the main body, in particular the projection of the side wall or side walls, through which gap the fastening base can be inserted into the recess. For assembly, the fastening base is fastened to the upper side of the ski. The main body is then placed onto the fastening base, with the fastening base being inserted into the gap in the recess. Once the fastening base has been inserted into the recess, by displacement of the main body with respect to the fastening base along the longitudinal direction, the main body can be pressed against the upper side of the ski by the fastening base and in particular can be clamped between the fastening base and the upper side of the ski. In this position, further displacement can be prevented by means of the screws provided for the tread section.

[0031] In further developments, one of the main body, in particular a projection formed by the main body, and the fastening base can have an inclined surface along which the other of the main body, in particular the at least one projection, and the fastening base slides during a movement of the main body along the longitudinal direction relative to the fastening base. The inclined surfaces cause the main body to be pressed against the upper side of the ski and, in particular, to be clamped between the fastening base and the upper side of the ski.

[0032] As an alternative to fastening using a fastening base, the main body can be fastened to the top of the ski using a holding rail. The holding rail can be fastened to the top of the ski, for example, using fastening screws screwed into the ski. The holding rail and the main body can each form guides that are coordinated and interlock with one another so that the main body can be slid onto the rail and moved relative to the rail along the longitudinal direction of the rail, which extends parallel to the longitudinal direction of the ski. For example, one main body and holding rail can encompass the other. By means of a locking element, such as a clamping or locking element, the main body can be secured to the holding rail in a desired position along the longitudinal axis to prevent it from moving.This allows for convenient assembly and easy adjustment of the ski binding to suit different ski boot sizes, which is particularly advantageous if the ski is used by different people with different ski boots or boot sizes.

[0033] A ski binding may comprise the toe piece described herein and the heel piece configured to engage around a heel-side portion of a ski boot sole. Furthermore, a ski may comprise a ski binding described herein, wherein the toe piece and the heel piece are connected to each other only via the ski and are otherwise not connected to each other.

[0034] Further developments of the present invention are also based on the object of specifying a toe piece for a ski binding for holding a ski boot on a ski, which holds the ski boot securely and with as little play as possible. In further developments, the main body can have an upper part and a lower part, which are connected to one another in a yielding manner, in particular in a yieldingly movable or pivotable manner, by a connecting part. The receiving section can have an open cross-section along the passage, in particular over the length or entire length of the passage. Due to the upper part being yielding with respect to the lower part, height tolerances of the toe-side projection of the outsole can be compensated. If the toe-side projection of the outsole has an upper dimension, the upper part can be moved or pivoted accordingly with respect to the lower part.

[0035] For example, the first and second sole holders can be attached to the upper via the first and second vertical pivot axes. The first and second sole holders can follow the flexible movement of the upper relative to the lower part.

[0036] For example, the connecting part can be a spring or at least a resilient section. In particular, the upper part and the lower part can be connected to one another in one piece via the connecting part. The upper part can be movable or pivotable with respect to the lower part under deformation, in particular elastic deformation, of the connecting part, in particular about a pivot axis running transversely to the longitudinal direction of the toe piece. The pivot axis can run through the connecting part. The advantage of a connecting part that integrally connects the lower part and the upper part is a smaller number of parts, ease of manufacture, and high stability. The pivot axis can be arranged parallel to the longitudinal direction of the passage, which is also arranged transversely to the longitudinal direction of the toe piece.

[0037] The open cross-section can be formed by a gap or a slot that extends over the length, in particular the entire length, of the passage and separates the upper and lower parts from each other there. The cross-section can thus have the shape of a slotted ring, such as a C-shaped one. When the upper part is moved, in particular pivoted, relative to the lower part, the gap, in particular the gap width, i.e., the distance between the upper and lower parts, can widen or narrow depending on the pivoting direction.

[0038] The gap can extend, with respect to the longitudinal direction of the toe piece, from the passage to a receiving area provided between the first sole holder and the second sole holder for receiving the forefoot area of ​​the ski boot or the toe-side end of the outsole (toe-side heel). The receiving section can be open at the rear, i.e., opposite the direction of travel or toward the ski boot, relative to the longitudinal direction of the ski or the longitudinal direction of the toe piece, or can have the gap. The connecting part can be formed at the front, i.e., in the direction of travel, or by the ski boot, relative to the longitudinal direction of the ski or the longitudinal direction of the toe piece. This protects the gap from the penetration of snow or ice.

[0039] The at least one spring element can be at least one or a single helical spring, preferably acting as a compression spring. The longitudinal axis of the at least one helical spring, around which it winds, can be arranged transversely, in particular perpendicularly, to the longitudinal direction of the front jaw, or parallel or approximately parallel to the longitudinal direction of the passage or the pivot axis about which the upper part is resiliently pivotable relative to the lower part.

[0040] In further developments, at least one, in particular pin-shaped, limiting element can be provided, which connects the upper part and the lower part in such a way that it limits the movement or pivoting of the upper part with respect to the lower part. For example, several, such as two, limiting elements can be provided, wherein one can be arranged on the left and one on the right side with respect to the central axis of the toe piece or the longitudinal axis of the ski. The at least one limiting element can be fastened to the upper part, in particular axially guided on the upper part and / or secured against axial displacement, in particular anchored on or in the upper part. In general, a first axial stop can be provided on one of the upper part and the lower part, against which a first counter-stop of the limiting element rests. The axial stop can, for example, be a step.The first counter-stop of the limiting element can, for example, be an annular collar on the pin-shaped limiting element. The annular collar can be arranged at one end of the limiting element.

[0041] Alternatively or additionally, a second axial stop can be provided on one of the upper and lower parts, and a second counter-stop can be provided on the limiting element. Optionally, a spring can be arranged between the second axial stop and the second counter-stop, which spring is supported with one side on a second axial stop and with the other side on the second counter-stop. The second axial stop can, for example, be a contact surface for one end of the spring. The second counter-stop can, for example, be formed by an annular collar at another end of the limiting element. The spring can be supported with one end directly on the counter-stop or a disk-shaped ring, such as a washer, which is arranged between the end of the spring and the second counter-stop and is supported directly on the second counter-stop.The spring can, for example, be a helical spring which surrounds the pin-shaped limiting element over part of its length and winds itself, in particular several times, around its circumference.

[0042] The spring can be arranged such that it is tensioned or further tensioned when the upper part is moved or pivoted relative to the lower part, in particular when it is moved or pivoted such that the gap width or the distance between the upper part and the lower part increases in the region of the gap. Accordingly, the spring can be relaxed when the upper part is moved or pivoted relative to the lower part such that the gap width or the distance between the upper part and the lower part decreases in the region of the gap.

[0043] The spring, which is supported by the second axial stop and the second counter-stop, can bias the first counter-stop against the first stop. Alternatively or additionally, the spring can pre-load the upper part against the lower part such that the upper part rests against the lower part, for example, in the area of ​​the gap. When the toe-side projection of the ski boot is inserted into the toe piece, the upper part can be pivoted relative to the lower part while tensioning the spring, depending on the height of the projection, to compensate for tolerances in the height of the projection.

[0044] The at least one pin-shaped limiting element can be arranged between the at least one spring element, in particular a longitudinal axis of the at least one spring element, and the receiving area provided between the first sole holder and the second sole holder for receiving the forefoot area of ​​the ski boot. The at least one pin-shaped limiting element can be arranged offset from the longitudinal axis of the at least one spring element toward the receiving area for the front area of ​​the ski boot. This allows for a particularly stable arrangement for the introduction of the forces of the limiting element.

[0045] In a further development, such a pin-shaped limiting element can be provided for each sole holder, with the first sole holder being pivotably mounted on a first limiting element and the second sole holder being pivotably mounted on a second limiting element. Generally, the limiting element can form a pivot axis for the sole holder. This allows two functions to be achieved with the limiting element: limiting the pivoting of the upper part and providing a pivot axis for the first and second sole holders. This saves parts and installation space.

[0046] The invention has been described using several embodiments and examples. Embodiments are described below with reference to figures. The features disclosed therein advantageously develop the subject matter of the claims individually and in any combination of features. They show: Fig. 1 a side view of a front piece shown in section along a longitudinal direction, a ski and a ski boot, Fig. 2 an exploded view with the individual parts of the front jaw, Fig. 3 a perspective view of the front jaw from the rear left, Fig. 4 a perspective view of the front jaw from below, Fig. 5 a perspective sectional view of the front jaw with inserted mounting base, Fig. 6 the view from Fig. 5, where the mounting base is shown separately Fig. 7 a modification of the embodiment from the Fig. 1 to 6 in an exploded view of the individual parts of the front jaw, in which a receiving section has an open cross-section, Fig. 8 a perspective sectional view of the front jaw and Fig. 9 a perspective sectional view of a section of the front jaw, in which a limiting element can be seen in detail.

[0047] In the Fig. 1 to 6, an embodiment of the front jaw 1 is shown. Fig. 7 to 9, a modification of the embodiment of the front jaw 1 from the Fig. 1 to 6. The modified embodiment has a receiving portion 12 with an open cross-section, wherein the cross-section of the receiving portion 12 in the embodiment of the Fig. 1 to 6 is or can be closed. In the embodiment of the Fig. 1 to 6, a tread portion 13 and the receiving portion 12 are formed integrally by a main body 10, wherein in the modified embodiment, the main body 10 and the tread portion 13 can optionally be formed in multiple parts or also in one piece. In the following, the same reference numerals denote the same or similar parts. The description for the Fig. 1 to 6 applies - apart from the differences - equally to the modification from the Fig. 7 to 9.

[0048] In Fig. 1 shows the toe piece 1 of a ski binding 2 designed as an alpine ski binding. The ski binding 2, in particular the toe piece 1, serves to hold a ski boot 3 on a ski. The toe piece 1 is fastened to the upper side 4a of the ski 4, in particular by means of screws 40 screwed into the ski 4. The heel part is Fig. 1 not shown, but is present in an alpine ski binding.

[0049] The ski boot 3 has a sole which is encompassed at the toe end of the ski boot 3 by the toe piece 1, in particular a first sole holder 11a and a second sole holder 11b, and held on a tread section 13.

[0050] The toe piece 1 has a main body 10, the underside of which rests against the upper side 4a of the ski 4. A first sole holder 11a and a second sole holder 11b are arranged on the main body 10 so as to be pivotable relative to one another and to the main body 10. The first and second sole holders 11a, 11b are each attached to the main body 10 via a pin 24a, 24b, which forms an approximately vertical pivot axis. At the end of the first sole holder 11a and the second sole holder 11b pointing from the pin 24a, 24b toward the ski boot 3, a roller 25 is arranged so as to be rotatable about a bearing axis 26, via which the roller 25 is attached to the respective sole holder.

[0051] The main body 10 has a receiving section 12, in particular a hollow cylindrical one, with a passage 12a, which receives at least one spring element 20a, 20b, in this example a first spring element 20a and a second spring element 20b, which acts with one side on the first sole holder 11a and with the other side on the second sole holder 11b. The receiving section 12 can have a closed or an open cross-section. The at least one spring element 20a, 20b is designed as a helical or coil spring that acts as a compression spring. The longitudinal axis A of the at least one spring element 20a, 20b is arranged transversely, in particular perpendicularly, to the longitudinal direction L of the toe piece 1 and can thus be referred to as a transverse spring.The ideally pre-tensioned spring element 20a, 20b tensions the first sole holder 11a and the second sole holder 11b each into a holding position in which the respective sole holder 11a, 11b can engage around or over the toe-side end of the sole from the front and sideways as well as from above (see . Fig. 1). When no ski boot 3 is inserted into the toe piece 1, a stop (not shown) formed by the toe piece 1 prevents the first sole holder 11a and the second sole holder 11b from pivoting inward further than their respective holding position. The at least one spring element 20a, 20b biases the first sole holder 11a and the second sole holder 11b against the stop for the first sole holder 11a and the stop for the second sole holder 11b. The sole holders 11a, 11b are each designed as double-arm levers, with the at least one spring element 20a, 20b acting on the lever arm remote from the sole and biasing it outward, i.e., to the left and right as viewed in the direction of travel of the ski 3. The sole holders 11a, 11b can be pivoted from the respective holding position by tensioning the ideally pre-tensioned spring element 20a, 20b into a release position in which the ski boot 3 can be released from the toe piece 1.When the lever arm of the respective sole holder 11a, 11b pointing towards the sole is pivoted outwards, the corresponding lever arm remote from the sole is pivoted inwards about the pivot axis 24a, 24b, whereby the at least one spring element 20a, 20b is compressed, i.e. tensioned even more.

[0052] In the passage 12a, a first sleeve 21 and a second sleeve 22 are guided in a rotationally fixed manner about the longitudinal axis A of the spring element 20a, 20b and displaceable along the longitudinal axis A. The end of the at least one spring element 20a, 20b facing the first sole holder 11a rests against a bottom of the sleeve 21, with the sleeve 21 in turn being supported on the lever arm of the sole holder 11a remote from the sole. Optionally, one end of the at least one spring element 20a, 20b is supported on a nut 28, which is supported on the bottom of the sleeve 21 via an adjusting screw 23, which serves to adjust the preload of the at least one spring element 20a, 20b, and a bearing surface 27. Furthermore, the at least one spring element 20a, 20b is supported with the other end on a bottom of the second sleeve 22, which in turn is supported on the lever arm of the second sole holder 11b remote from the sole.The receiving section 12 forming the passage forms a cross-section that is closed in the circumferential direction, which contributes to the stability of the receiving section 12 compared to a cross-section that is not closed in the circumferential direction.

[0053] The receiving section 12 is connected in one piece via a connecting section 16 to a tread section 13, which is arranged below a forefoot area 3a of the ski boot 3. The tread section 13, the receiving section 12, and the connecting section 16 are thus formed in one piece by the main body 10. The sole, in particular the forefoot area 3a of the sole, of the ski boot 3 rests on a tread surface 33, which is formed by the tread section 13 or - as shown here - by a tread plate 30 formed as a metal tread plate, which is arranged on the tread section 13. The force exerted by the ski boot 3 in the direction of the ski 4 is transmitted into the ski 4 via the tread section 13, the underside of which rests on the upper side 4a of the ski 4. The one-piece formation of the tread section 13 with the receiving section 12 by the main body 10 allows a low standing height h ( Fig. 1) in particular between 8 and 17 millimeters, preferably between 8 and 13 millimeters. The tread plate 30 rests on the upper side of the tread section 13 and has a smaller, in particular significantly smaller, thickness than the tread section 13. Despite this tread plate 30, the standing height h specified herein can be achieved. However, the tread plate 30 has the advantage that it prevents or at least reduces wear on the tread section 13 and also influences the release behavior of the toe piece 1, since the tread plate 30 defines a coefficient of friction between the tread plate 30 and the forefoot area 3a of the ski boot 3 through a suitable choice of material.

[0054] The tread plate 30 has a wing 31, 32 on each side. The wings 31, 32 encompass the main body 10, particularly in the area below the receiving section 12. The main body 10, particularly the area below the passage 12a, is enclosed between the two wings 31, 32. The wings 31, 32 are each arranged in a recess 14a. The recesses 14a are adapted to the shape of the respective wing 31, 32. The wing 31, 32 can, for example, be snapped or otherwise positively connected to the main body 10. As a result, the connecting section 16 can be additionally reinforced via the tread plate 30 and the wings 31, 32. Alternatively or additionally, the wings 31, 32 can serve to securely fasten the footplate 30 to the main body 10 when the front jaw 1 is not yet screwed to the ski 4.

[0055] The tread section 13 and the tread plate 30 have two bores 34a, 34b, each for receiving a fastening screw 40, with which the toe piece 1, in particular the tread section 13, is fastened to the ski 4. The fastening screws 40 have a screw head, which in the example shown is designed as a countersunk head, and a shaft with a thread. The shaft with the thread is screwed into the ski 4. The head of the fastening screw is preferably arranged in a countersunk recess 35 formed by the tread plate 30. This allows the screw head to be countersunk into or below the surface of the tread plate 30. The tread plate 30 and the tread section 13 are clamped between the screw head and the ski 4 when the toe piece 1 is screwed to the ski 4 with the screws 40.The depression 35 can be conical and is preferably a formed section of the tread plate 30 formed as a metal sheet.

[0056] On the side of the connecting section 16 facing away from the tread section 13, the toe piece 1 is additionally fixed to the ski 4 by means of a fastening base 50, which is fastened to the ski top 4a by means of two fastening screws 40 and to which the main body 10 is fastened by means of a retaining engagement. By fastening the toe piece 1 via the tread section 13 and the fastening base 50, a particularly stable connection to the ski 4 is achieved. The main body 10 can be fastened to the fastening base 50 with a positive engagement.

[0057] The main body 10 has a recess 17 on its underside, which is open towards the top side 4a of the ski and accommodates the attachment base 50 when the main body 10 is attached to the attachment base 50. The main body 10 completely surrounds the attachment base 50 when the main body 10 is attached to the attachment base 50. The recess 17 is delimited towards the tread section 13 by a rear wall 17a formed by the connecting section 17. To the front, the recess 17 is delimited by a front wall 17d and to the sides by side walls 17b and 17c, which are also formed by the main body 10 ( Fig. 4).

[0058] The side walls 17b, 17c each have a projection 18a, 18b extending into the recess transversely to the longitudinal direction L, which can be brought into positive engagement with the fastening base 50.

[0059] A gap 17e is formed between the front wall 17d and the projections 18a, 18b ( Fig. 4 and Fig. 6), via which the fastening base 50 can be inserted into the recess 17. As can be seen in particular from Fig. As can be seen from Figure 6, the fastening base 50 has projections 53a, 53b projecting laterally in opposite directions, which can be brought into positive engagement with the projections 18a, 18b. The projections 53a, 53b of the fastening base 50 are dimensioned such that they fit through the gap 17e and allow the insertion of the fastening base 50 into the recess 17. The projections 18a, 18b each have an inclined surface 18c, 18d, which can interact with a likewise inclined surface 53c, 53d, each formed on the projections 53a, 53b of the fastening base 50, when the main body 10 is displaced relative to the fastening base 50 along the longitudinal direction L.

[0060] To attach the front jaw 1 to the ski 4, the fastening base 50 on the top side 4a of the ski is secured by means of the hole 51a, 51b ( Fig. 6) extending screws 40. Subsequently, the main body 10 is positioned with its recess 17 over the fastening base 50 such that the fastening base 50, in particular its lateral projections 53a, 53b, fit through the gap 17e, whereby the main body 10 can be moved towards the upper side 4a of the ski. In this position, the main body 10 is displaced along the longitudinal direction L, as indicated to a fitter, for example, by a marking or an arrow arranged on the fastening base 50. By displacing the main body 10 with respect to the fastening base 50 along the longitudinal direction L, the lateral projections 53a, 53b of the fastening base 50 engage with the projections 18a, 18b. In particular, the inclined surfaces 18d, 53d and53c, 18c engage and slide against each other during displacement, whereby the main body 10 is pressed by the fastening base 50 against the ski top 4a and clamped between the fastening base 50 and the ski top 4a. This establishes the holding engagement between the fastening base 50 and the main body 10. The inclination of the inclined surfaces 18d, 53d and 53c, 18c, respectively, is preferably such that a self-locking effect occurs. Subsequently, the fastening screws 40 are screwed through the bores 34a, 34b of the tread section 13 into the ski 4, which—in addition to fastening the tread section 13—prevents displacement of the main body 10 in the opposite direction relative to the fastening base 50 along the longitudinal direction L. The main body 10 is thus securely fastened to the ski top 4a.

[0061] As can be seen in particular from the Fig. 2, additional decorative parts, etc., can be attached to the main body 10.

[0062] To adjust the release characteristics of the toe piece 1, it has an adjusting screw 23 that can be rotated about axis A, for example, using a screwdriver or other torque-transmitting tool. The adjusting screw 23 is arranged within the sleeve 21. The adjusting screw 23 has a bearing surface 27 that rests on a bottom of the sleeve 21. The adjusting screw 23 has a shaft with a thread that is in threaded engagement with a nut 28 that is arranged axially displaceably and rotationally fixed with respect to the sleeve 21. The sleeve 21 guides the nut 28 in a rotationally fixed and axially displaceable manner. One end of the at least one spring element 20a, 20b is supported axially on the nut 28. By turning the adjusting screw 23 with respect to the nut 28, the nut 28 is axially displaced, whereby the preload of the spring element 20a, 20b can be adjusted.Turning the adjusting screw in a first direction increases the preload, while turning the adjusting screw 23 in an opposite, second direction decreases the preload. The higher the preload, the more force is required to pivot the first sole holder 11a and the second sole holder 11b from the holding position to the release position.

[0063] The Fig. The modification shown in Figures 7 to 8 differs from the one shown in Fig. 1 to 6 in that a gap 12b is provided, forming an open cross-section of the receiving section 12, and that the pins 24a, 24b or pivot axes have an additional function as a limiting element. In view of their additional function, the pins in the modification can be referred to as limiting elements 24a, 24b. Furthermore, the modification has a single spring element 20a, 20b instead of multiple spring elements.

[0064] For example, Fig. As can be seen in Figure 8, the main body 10 has an upper part 10a and a lower part 10b, which are connected to one another by a connecting part 10c in a flexible, movable, in particular pivotable manner. The connecting part 10c connects the upper part 10a and the lower part 10b in one piece. The flexibility of the connecting part 10c is achieved by the material elasticity of the main body 10, in particular in the connecting part 10c. The upper part 10a is pivotable about a pivot axis S ( Fig. 7) is movable or pivotable under elastic deformation of the connecting part 10c within a certain limit, which is predetermined by the limiting elements 24a, 24b. In contrast to the embodiment of the Fig. 1 to 7, in which the receiving section 12 forms a closed cross-section (see in particular Fig. 5 and Fig. 6), the receiving section 12, as shown for example in the Fig. 7 and Fig. 8, the connecting element 10c has a cross-section that is open along the passage 12a, in particular over the entire length of the passage 12a, and is formed by a gap 12b. The gap 12b extends along the longitudinal direction L of the passage 12a over its entire length. It also separates the upper part 10a and the lower part 10b from each other and enables the flexible movement, in particular the pivoting, of the upper part 10a with respect to the lower part 10b, with elastic deformation of the connecting part 10c.

[0065] The gap 12b extends along the longitudinal direction L of the toe piece 1 from the passage 12a to the receiving area for receiving the forefoot area 3a of the ski boot 3, i.e., to the toe-side projection. The receiving area is formed between the first sole holder 11a and the second sole holder 11b (see FIG. Fig. 1). As with the Fig. 1, a first sleeve 21 and a second sleeve 22 are slidably received in the passage 12a, with the spring element 20a being supported at one end on the first sleeve 21 and at the other end on the second sleeve 22. The first sleeve 21 is supported on the first sole holder 11a, and the second sleeve 22 is supported on the second sole holder 11b. Due to the pretension of the spring element 20a, this tensions the first and second sole holders 11a, 11b into the respective holding position, from which they can be pivoted into a release position.

[0066] The at least one spring element is in the Fig. 7, as in the first embodiment, a helical spring with a longitudinal axis A around which it winds. The longitudinal axis A is arranged transversely or perpendicular to the longitudinal direction L of the toe piece or parallel or approximately parallel to the pivot axis S about which the upper part 10a is pivotable relative to the lower part 10b. The first and second sleeves 21, 22 are displaceable along the longitudinal axis A relative to the main body 10.

[0067] As mentioned above, the first and second pins in the modification from the Fig. 7 to 9 not only as a pivot axis for the first sole holder 11a and the second sole holder 11b, but also as limiting elements 24a, 24b, which connect the upper part 10a and the lower part 10b in such a way that it limits movement of the upper part 10a with respect to the lower part 10b. The pin-shaped limiting element 24a, 24b is axially guided at one end in the upper part 10a and held in such a way that it follows the movement of the upper part 10a with respect to the lower part 10b. The first and second sole holders 11a, 11b, which are pivotally arranged on the limiting elements 24a, 24b, are moved along with the limiting elements 24a, 24b.When the ski boot 3 is inserted into the toe piece 1, the toe-side projection of the sole can, depending on its height, push the first sole holder 11a and the second sole holder 11b upwards, whereby the upper part 10a is also moved or pivoted upwards with respect to the lower part 10b via the limiting elements 24a, 24b, whereby the gap width of the gap 12b is thereby increased.

[0068] The limiting element 24a, 24b can be firmly anchored in the upper part 10a or at least arranged such that it is firmly held in the upper part 10a towards the lower part 10b. In the example shown, the upper part 10a has an axial stop 10d ( Fig. 9) against which a first counter-stop 24g of the limiting element 24a, 24b rests, thereby preventing movement of the limiting element 24b along its longitudinal direction in at least one direction. The first axial stop 10d is formed by a step of the upper part 10a, with the counter-stop 24g being formed by an annular collar at one end of the limiting element 24a, 24b. The limiting element 24a, 24b is arranged in a bore in the upper part 10a, in particular arranged such that it is axially guided thereby.

[0069] The lower part 10b forms a second axial stop 10e ( Fig. 9), wherein a second counter-stop 24h is formed on the limiting element 24a, 24b, in particular at its other end, in particular in the form of an annular collar. The lower part 10b has a bore through which the limiting element 24a, 24b extends. A spring 24c, 24d ( Fig. 7 and Fig. 9), which in the example shown is designed as a helical spring, is enclosed between the second axial stop 10e and the second counter-stop 24h and is preferably pre-tensioned. The spring 24e rests with one end on the second axial stop 10e and with its other end on a disc-shaped ring 24e, 24f, which in turn rests on the second counter-stop 24h. The pre-tensioned spring 24c, 24d can pre-tension the upper part 10a with respect to the lower part 10b in a first direction. When the upper part 10a is moved upward when the ski boot 3 is stepped into the toe piece 1, the spring 24c, 24d is tensioned. This causes the first sole holder 11a and the second sole holder 11b to be pressed against the upper side of the toe-side projection of the sole of the ski boot 3. As a result, the ski boot 3 is held by the toe piece 1 without any play.The spring 24c, 24d is placed on the pin-shaped limiting element 24a, 24b and surrounds it over its circumference and at least over part of its length.

[0070] The main body 10 of the front jaw 1 from the Fig. 7 to 9, as in the embodiment of the Fig. 1 to 6 are connected in one piece to a tread section 13, which is arranged below the forefoot area 3a of the ski boot, via a connecting section 16. This advantageously allows the standing height to be reduced.

[0071] In the embodiment, the lower part 10b forms the Fig. 7 to 9 the recess 17 for receiving the fastening base 50. The fastening of the toe piece 1 on the ski can therefore be carried out as in the version from the Fig.1 to 6. Alternatively to fastening by means of a fastening base 50, the main body 10 can be fastened to the upper side 4a of the ski by means of a retaining rail. Alternatively, the toe piece 1 can be screwed directly to the upper side 4a of the ski by means of several screws, thereby eliminating the need for the base 50 and a retaining rail. List of reference symbols 1 front jaw 2 ski bindings 3 ski boots 3a Forefoot area 4 skis 4a Ski top 10 main bodies 10a Upper part 10b Lower part 10c connecting part 10d first attack 10e second stop 11a first sole holder 11b second sole holder 12 Recording section 12a passage 12b gap 13 Performance section 14a recess 15 Reduction 16 connecting section 17 Deepening 17a (rear) wall 17b side wall 17c side wall 17d front wall 17th gap 18a first ledge 18b second projection 18c inclined surface 18d inclined surface 20a spring element 20b spring element 21 first sleeve 22 second sleeve 23 Adjusting screw 24a Swivel axis / pin / limiting element 24b Swivel axis / pin limiting element 24c spring 24d spring 24th Ring 24f ring 24g first counter-attack 24h second counterattack 25 rolls 26 bearing axis 27 storage areas 28 mother 30 tread plate 31 first wing 32 second wing 33 performance area 34a first drilling / first hole 34b first drilling / first hole 35 Reduction 40 fixing screw 50 mounting bases 51a Bore / hole 51b Bore / Hole 53a projection 53b projection 53c inclined surface 53d inclined surface h Stand height L longitudinal direction A Longitudinal axis S swivel axis H Longitudinal axis QUOTES CONTAINED IN THE DESCRIPTION

[0000] This list of documents submitted by the applicant was generated automatically and is included solely for the convenience of the reader. This list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions. Cited patent literature

[0000] DE 10 2024 124 939.0

[0001] EP 2 540 356 B1

[0002]

Claims

[1] Toe piece (1) for a ski binding (2) for holding a ski boot (3) on a ski (4), wherein the toe piece has: a main body (10) on which a first sole holder (11a) and a second sole holder (11b) are pivotably arranged and which has a receiving section (12) with a passage (12a) which receives at least one spring element (20a, 20b) which acts on the first sole holder (11a) with one side and clamps it into a holding position and which acts on the second sole holder (11b) with the other side and clamps this into a holding position, wherein the sole holders (11a, 11b) can be pivoted from the respective holding position into a release position by tensioning the spring element (20a, 20b), in which the ski boot (3) can be released from the toe piece (1), characterized by , that the main body (10) has a tread section (13) which is arranged below a forefoot area (3a) of the ski boot (3), wherein the tread section (13) and the receiving section (12) are formed as one piece by the main body (10). [2] Front jaw (1) according to claim 1, characterized by , that the at least one spring element (20a, 20b) is a compression spring, wherein a longitudinal axis (A) of the at least one compression spring is arranged transversely, in particular perpendicularly, to the longitudinal direction (L) of the front jaw (1). [3] Front jaw (1) according to claim 1 or 2, characterized by a footplate (30), in particular a metal footplate, which is arranged on the side of the tread section (13) facing the ski boot (3) and in particular forms a tread surface (33) for the forefoot area (3a) of the ski boot (3). [4] Front jaw (1) according to claim 3, characterized by, that the tread plate (30) rests against the tread section (13) and / or has a lesser thickness than the tread section (13). [5] Front jaw (1) according to claim 2 or 3, characterized by , that the footplate (30) has a wing (31, 32) on each side, wherein the wings (31, 32) encompass the main body (10), in particular in the area below the receiving section (12) of the at least one spring element (20a, 20b). [6] Front jaw (1) according to claim 5, characterized by , that the wings (31, 32) are arranged in recesses (14a) formed on both sides of the main body (10), in particular adapted to the shape of the respective wing (31, 32). [7] Front jaw (1) according to claim 1 or 2, characterized by , that the tread section (13) forms a tread surface (33) for the forefoot area (3a) of the ski boot (3). [8] Front jaw (1) according to any one of claims 3 to 7, characterized by, that a stand height (h) is between 8 and 17 mm, for example between 8 and 13 mm, wherein the stand height (h) is the vertical distance between the top surface (4a) of the ski (4) or the underside of the foot section (13) and the foot surface (33). [9] Front jaw (1) according to any one of the preceding claims, characterized by , that the tread section (13) and / or a footplate (30) has at least one bore (34a, 34b) for receiving a fastening screw (40) with which the front jaw (1) can be fastened to the ski (4). [10] Front jaw (1) according to claim 9, characterized by , that the at least one bore (34a, 34b) of the footplate (30) has a countersink (35), in particular a conical countersink, for receiving a screw head of the fastening screw (40). [11] Front jaw (1) according to claim 10, characterized by, that the depression (35) is a cone-shaped or reshaped section of the tread plate (30) which extends into a depression (15) formed below it by the tread section (13). [12] Front jaw (1) according to any one of the preceding claims, characterized by a mounting base (50) having at least one bore (51a, 51b) for receiving a mounting screw (40) with which the mounting base (50) can be attached to the ski (4), wherein the main body (10) can be attached to the mounting base (50) by means of a positive locking engagement, wherein the positive locking engagement can be produced in particular by means of a movement of the main body (10) in relation to the mounting base (50) along the longitudinal direction (L). [13] Front jaws (1) according to the preceding claim, characterized by, that a movement of the main body (10) with respect to the mounting base (50) along the longitudinal direction (L) causes the main body (10) to be pressed against the ski top (4a) and in particular to be wedged between the mounting base (50) and the ski top (4a). [14] Front jaw (1) according to any one of the preceding claims, characterized by , that the receiving section (12) and the stepping section (13) are connected in one piece via a connecting section (16) which is formed in the longitudinal direction (L) of the front jaw (1) between the stepping section (13) and a mounting base (50) to which the main body (10) is attached or can be attached, or a recess (17) in which the mounting base (50) is or can be arranged. [15] Front jaw (1) according to the preceding claim, characterized by, that the connecting section (16) forms a wall (17a) which limits or closes off the depression (17) towards the tread section (13). [16] Front jaw (1) according to any one of claims 12 to 15, characterized by , that the main body (10) has a recess (17) on its underside facing the ski top (4a), which is open towards the ski top (4a), wherein the mounting base (50) is arranged in the recess (17) when the main body (10) is attached to the mounting base (50). [17] Front jaw (1) according to any one of claims 12 to 16, characterized by that the main body (10) surrounds the mounting base (50), preferably completely, when the main body (10) is attached to the mounting base (50). [18] Front jaw (1) according to any one of claims 12 to 17, characterized by, that one of the mounting base (50) and main body (10) has at least one projection (18a, 18b), wherein the other of the mounting base (50) and main body (10) interacts with the at least one projection (18a, 18b) in such a way that a displacement of the main body (10) with respect to the mounting base (50) along the longitudinal direction (L) causes the main body (10) to be pressed by the mounting base (50) against the ski top surface (4a) and in particular to be clamped between the mounting base (50) and the ski top surface (4a). [19] Front jaw (1) according to claim 18, characterized by , that the depression (17) is enclosed laterally by each of the side walls (17b, 17c) formed by the main body (10), wherein from each of the side walls (17b, 17c), in particular transverse to the longitudinal direction (L), such a projection (18a, 18b) extends into the depression (17). [20] Front jaw (1) according to claim 18 or 19, characterized by, that the recess (17) is bounded at its front end by a front wall (17d), wherein a gap (17e) is formed between the front wall (17d) and the at least one projection (18a, 18b) of the main body (10) or a side wall (17b, 17c) of the main body (10), through which the mounting base (50) can be inserted into the recess (17), wherein, when the mounting base (50) is inserted into the recess (17), by a displacement of the main body (10) with respect to the mounting base (50) along the longitudinal direction (L) the main body (10) is pressed by the mounting base (50) against the ski top surface (4a) and is in particular wedged between the mounting base (50) and the ski top surface (4a). [21] Front jaw (1) according to any one of claims 13 to 20, characterized by, that one of the main body (10), in particular at least one projection (18a, 18b), and mounting base (50) has an inclined surface (18c, 18d, 53c, 53d) on which the other of the main body (10), in particular the at least one projection (18a, 18b), and mounting base (50) slides during a movement of the main body (10) along the longitudinal direction (L) relative to the mounting base (50), whereby the main body (10) is pressed against the ski top (4a) and in particular is clamped between the mounting base (50) and the ski top (4a). [22] Front jaw (1) according to any one of the preceding claims, characterized by , that the main body (10) has an upper part (10a) and a lower part (10b) which are flexibly pivotable connected to each other by a connecting part (10c) and the receiving section (12) has an open cross-section along the passage (12a). [23] Front jaw (1) according to claim 22, characterized by, that the upper part (10a) and the lower part (10b) are connected to each other in one piece via the connecting part (10c) and the upper part (10a) is movable or pivotable with respect to the lower part (10b) under elastic deformation of the connecting part (10c), in particular about a pivot axis (S) running transversely to the longitudinal direction (L) of the front jaw (1). [24] Front jaws (1) according to claim 22 or 23, characterized by , that the open cross-section is formed by a gap (12b) which extends over the length of the passage (12a) and separates the upper part (10a) and the lower part (10b). [25] Front jaws (1) according to the preceding claim, characterized by , that the gap (12b) extends in relation to the longitudinal direction (L) of the toe piece (1) from the passage (12a) to a receiving area provided between the first sole holder (11a) and the second sole holder (11b) for receiving the forefoot area (3a) of the ski boot (3). [26] Front jaw (1) according to any one of claims 22 to 25, characterized by , that the at least one spring element (20a, 20b) is a coil spring, wherein a longitudinal axis (A) of the at least one coil spring is arranged transversely, in particular perpendicularly, to the longitudinal direction (L) of the front jaw (1) or parallel or approximately parallel to a pivot axis (S) about which the upper part (10a) is pivotable in relation to the lower part (10b). [27] Front jaw (1) according to any one of claims 22 to 26, characterized by at least one, in particular pin-shaped, limiting element (24a, 24b) which connects the upper part (10a) and the lower part (10b) in such a way that it limits the pivoting of the upper part (10a) in relation to the lower part (10b). [28] Front jaws (1) according to the preceding claim, characterized by, that a first axial stop (10d) is provided on a top part (10a) and bottom part (10b), against which a first counter stop (24g) of the limiting element (24a, 24b) rests. [29] Front jaw (1) according to one of the two preceding claims, characterized by , that a second axial stop (10e) is provided on a top part (10a) and bottom part (10b) and a second counter-stop (24h) is provided on the limiting element (24a, 24b), wherein a spring (24c, 24d) is arranged between the second axial stop (10e) and the second counter-stop (24h), which is supported on these. [30] Front jaws (1) according to the two preceding claims, characterized by , that the spring (24c, 24d) tensions the first counter-stop (24g) against the first stop (10d). [31] Front jaw (1) according to one of the two preceding claims, characterized by, that the spring (24c, 24d) is arranged such that it is tensioned when the upper part (10a) is pivoted relative to the lower part (10b). [32] Front jaw (1) according to any one of the three preceding claims, characterized by , that the spring (24c, 24d) is a helical spring surrounding the pin-shaped limiting element (24a, 24b). [33] Front jaw (1) according to any one of claims 27 to 32, characterized by , that the pin-shaped limiting element (24a, 24b) is arranged between the at least one spring element (20a, 20b), in particular a longitudinal axis (A) of the at least one spring element (20a, 20b), and a receiving area provided between the first sole holder (11a) and the second sole holder (11b) for receiving the forefoot area (3a) of the ski boot (3). [34] Front jaw (1) according to any one of claims 27 to 33, characterized by, that for each sole holder (11a, 11b) such a pin-shaped limiting element (24a, 24b) is provided, wherein the first sole holder (11a) and the second sole holder (11b) are arranged pivotably about its limiting element (24a, 24b). [35] Ski binding (2) with a toe piece (1) according to one of the preceding claims and a heel part which is designed to engage a heel-side part of a sole of the ski boot (3). [36] Ski (4) with a ski binding (2) according to the preceding claim, wherein the toe piece (1) and the heel part are connected to each other only via the ski (4).

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