Heel unit for a ski touring binding, and ski touring binding

Abstract

The invention relates to a heel unit for a ski touring binding, wherein the heel unit can be brought into an entry position, an intermediate position, and an ascent position, and wherein the heel unit comprises a ski brake lock (15a, 16, 33). The ski brake lock (15a, 16, 33) comprises: a linearly displaceable, spring-loaded actuating rod (16) connected to the ski brake (3); and a slotted guide (15a, 33) located in the heel piece (2), wherein the slotted guide (15a, 33) comprises a locking element (33) which is aligned along the vertical axis of rotation (a1) of the holding body (11), rotates with the holding body (11) and thereby moves along the axis of rotation (a1), and is spring-loaded in the direction of the ski plane.

Description

[0001] Description

[0002] Heel unit for a touring ski binding and touring ski binding

[0003] The invention relates to a heel unit for a touring ski binding, wherein the heel unit can be brought into an entry position, an intermediate position and a climbing position and wherein the heel unit comprises the following: a ski brake which can be brought into an active position and an inactive position, a heel jaw with a rotatable holding body for holding a ski boot, wherein the holding body has a vertical axis of rotation, and a ski brake lock, wherein the heel unit can be brought into the entry position and the intermediate position in the active position of the ski brake by pivoting the holding body,wherein in the intermediate position of the heel unit, by actuating the ski brake, the ski brake is moved from the active position to the inactive position and thus the heel unit is moved from the intermediate position to the ascent position, and wherein in the ascent position of the heel unit, by rotating the holding body, the ski brake is moved from the inactive position to the active position and thus the heel unit is moved into the boarding position.

[0004] Such a heel unit is known, for example, from AT 515 190 B1. The heel unit comprises a heel jaw with a rotatable holding body (“binding body”), a ski brake (“brake assembly”), and a ski brake lock. The ski brake can be moved into an inactive position (“braking position”) and an active position (“skiing position”), with the ski brake being preloaded into the active position, in particular by means of a conventional torsion spring. The ski brake lock is formed by a first control section located on the holding body and a second control section positioned on the ski brake. In the active position of the ski brake, the heel unit can be moved into an entry position (“downhill position”) and an intermediate position by rotating the holding body. In the intermediate position, the first control section points towards the tip of the ski and is located with one end section above the second control section.There are basically two ways to operate the ski brake lock. The first option involves applying the ski brake with the heel unit in the entry position, so that the second control section rotates around a transverse axis of rotation and approaches the ski plane. With the ski brake applied, the retaining body is rotated, causing the first control section to slide behind the second control section and lock it (ski brake in the inactive position, heel unit in the ascent position). The intermediate position is "bypassed" with this approach.A second possibility, which is not described in the publication but is quite common among users, is to rotate the holding body starting from the heel unit in the entry position (heel unit in the intermediate position) and then actuate the ski brake, whereby the second control section executes the described rotary movement and in doing so strikes the second control section from above, whereby - with sufficient force - the second control section is pushed away together with the entire holding body in such a way that the first control section slides behind the second control section and blocks it (ski brake in the inactive position, heel unit in the ascent position). In the ascent position of the heel unit, the heel unit is brought back into the entry position by rotating the holding body.

[0005] Operating the ski brake lock according to AT 515 190 Bl is uncomfortable with the first option mentioned above. The second option mentioned above results in severe mechanical stress, which is unfavorable with regard to the durability of the heel piece. Furthermore, there is a risk that components of the ski brake lock will freeze, making it impossible or significantly more difficult to operate.

[0006] Another heel unit of the type mentioned above is known from AT 514 518 B1. The heel unit comprises a ski brake, a heel piece with a rotatable holding body, and a ski brake lock with a hook. The heel piece has a projecting cam with a curved running surface on the outside of its housing ("upper section 26"), wherein the housing is preloaded against a brake housing ("frame 28") of the ski brake by means of a compression spring aligned in the longitudinal direction of the ski. When the heel unit transitions from the entry position to an intermediate position, the heel piece is rotated against the force of the compression spring while being displaced backwards (i.e., away from the brake housing), whereby the curved running surface on the cam contacts a shoulder on the brake housing.At the same time, due to the backward movement of the heel piece, a hook of the ski brake locking mechanism, which is operatively connected to the heel piece, is released ("activated"). Upon subsequent actuation of the ski brake, the hook pivots around a transverse axis and snaps into a part of the ski brake, holding it in the inactive position. At the same time, a compression spring acting on the hook is increasingly preloaded. When the heel piece is rotated back, the hook is pivoted back by the compression spring acting on it, so that the ski brake is pushed into the active position via a torsion spring, and the heel unit returns to the entry position.

[0007] Another heel unit of the type mentioned above is known from EP 3 345 659 B1. The heel unit comprises a ski brake with a plate-like brake bearing, a brake holder, and a preloaded brake bar pivotally mounted on the brake bearing. The heel unit can be moved into an entry position ("holding configuration"), a climbing position ("walking configuration"), and an intermediate position. The brake bearing is mounted in a heel support so that it can be moved longitudinally along the ski and, in the active position of the ski brake, is preloaded rearward, so that the brake bearing and the brake bar are moved rearward. By rotating the heel jaw 180°, the heel unit is moved from the entry position to the intermediate position. A projection on the heel jaw pushes the brake bearing forward against the preload of the brake bar, whereby the brake bar is within reach of the brake holder (intermediate position of the heel unit).When the ski brake is now applied, the brake bar engages with the brake holder (ski brake in the inactive position, heel unit in the ascent position). When the heel unit transitions from the ascent position back to the entry position, the brake bar is released from the brake holder, so that the ski brake assumes the active position. Therefore, heel units for touring ski bindings are known in which the pivoting movement of the holding body interacts functionally with the ski brake lock. This is preferable in view of the simplest and most intuitive operation of the ski brake lock.

[0008] With the ski brake locking systems known to date, there is a risk that the functionality of the ski brake locking systems may be impaired by external influences, which could, for example, lead to icing of components of the ski brake locking system.

[0009] The invention is therefore based on the object of ensuring a reliable and flawless functioning of the ski brake locking mechanism in a heel unit of the type mentioned above, in particular even under extreme weather conditions.

[0010] The stated object is achieved according to the invention in that the ski brake locking device comprises a linearly displaceable, spring-loaded actuating rod connected to the ski brake and a guide rail located in the heel jaw, wherein the guide rail comprises a spring-loaded locking element aligned along the vertical axis of rotation of the holding body, rotating with the holding body and thereby displacing along the axis of rotation, in the direction of the ski plane, wherein the locking element assumes a release position in the entry position of the heel unit, in which the ski brake remains in the active position when actuated, and wherein the locking element assumes a locking position in the intermediate position of the heel unit, in which, when the ski brake is actuated, the actuating rod is brought into engagement with the locking element against its spring loading and against the spring loading of the locking element,so that the ski brake remains in the inactive position and the heel unit is in the ascent position, whereby when the heel unit transitions from the ascent position to the entry position, the locking element assumes the release position, whereby the actuating rod and the locking element are disengaged and the actuating rod is pushed back or retracted by its spring action so that the ski brake assumes the active position.

[0011] In the heel unit according to the invention, two engageable and disengageable components of the ski brake locking mechanism, namely the spring-loaded, specially mounted locking element and the spring-loaded actuating rod, form a "locking mechanism" located within or in the area of ​​the heel piece, which is particularly well protected from external influences, such as mechanical stress or external factors that lead to icing. This ensures reliable and flawless functioning of the ski brake locking mechanism.

[0012] According to a preferred embodiment, the actuating rod is spring-loaded in the longitudinal direction of the ski and in the direction of the ski tip, which supports a functionally reliable, compact design.

[0013] A further embodiment which is advantageous in this regard is characterized in that the actuating rod is a push rod spring-loaded by means of a pre-tensioned compression spring or a pull rod spring-loaded by means of a torsion spring.

[0014] In this design, it is additionally advantageous if a) the push rod and the compression spring belong to a pre-tensioning device that pre-tensions the ski brake into the active position or b) the torsion spring forms a pre-tensioning device that pre-tensions the ski brake into the active position.

[0015] In variant a), the push rod and the compression spring therefore perform a dual function, saving components and thus weight.

[0016] In the latter embodiment, it is also advantageous if the actuating rod is a push rod having an internal, particularly annular, support projection on which the compression spring is supported. A further preferred embodiment consists in the locking element and the actuating rod each having an inclined sliding surface, which are aligned parallel to each other when the locking element is in the locked position and meet when the heel unit transitions from the intermediate position to the ascent position. This measure protects the ski brake locking mechanism particularly reliably from icing.

[0017] The functionally reliable, compact design of the ski brake locking mechanism is further supported by the further developments of the latter preferred embodiment mentioned below.

[0018] One of these further developments consists in the fact that the actuating rod has a locking projection which is particularly triangular in cross-section, on which the sliding surface is formed and via which the actuating rod can be brought into engagement with the locking element.

[0019] A further development of this is that the sliding surface of the locking element is formed at one end of the locking element.

[0020] A further preferred embodiment is characterized in that the guide rail has a circular, circular track (in plan view) with two diametrically opposed lowest points and two diametrically opposed highest points, and wherein the locking element has two diametrically opposed control projections guided on the guide track. This ensures particularly reliable guidance of the locking element.

[0021] A further preferred embodiment provides that the holding body can be rotated about the vertical axis of rotation via a combined axial-radial bearing formed in the heel piece, which comprises a pressing device, wherein by rotating the holding body the latter can be brought into a first position and into a second position, wherein the pressing device holds the holding body in the respective position and wherein the locking element is located in a through-hole formed in the region of the axial-radial bearing and running along the vertical axis of rotation, wherein when the holding body is in the first position the locking element is in the locked position and when the holding body is in the second position the locking element is in the release position and wherein a part of the slotted guide, in particular the slotted track, is located in the through-hole. This ensures particularly good protection of the locking element against external influences.

[0022] In the last-mentioned preferred embodiment, it is advantageous if the axial-radial bearing and the pressing device comprise a common, linearly displaceable, spring-loaded slide and the axial-radial bearing further comprises a tower-shaped bearing part, wherein the slide and the tower-shaped bearing part interact in such a way that the holding body is rotatably mounted on the tower-shaped bearing part.

[0023] A further preferred embodiment is characterized in that the heel piece comprises a guide plate having a plate-shaped base part with a recess formed on the underside, extending in the longitudinal direction of the ski, in which the actuating rod is guided. Preferably, the actuating rod has two lateral, web-shaped guide projections running parallel to the plane of the ski, which are guided on mutually parallel, web-shaped supports that protrude into the recess formed on the underside of the base part. This provides particularly good protection for the push rod against external influences, in particular against icing.

[0024] In the last two preferred embodiments mentioned, an advantageous variant consists in that the tower-shaped bearing part is a component of the guide plate and is located on the base part of the guide plate, wherein the through hole in which the locking element is located passes through the tower-shaped bearing part and the plate-shaped base part.

[0025] A further preferred embodiment is characterized in that the actuating rod has a cross-shaped receptacle in which a brake support bolt of a brake support of the ski brake is pivotably mounted around the brake support bolt. This ensures a particularly advantageous mounting of the ski brake on a part of the ski brake locking mechanism (the actuating rod).

[0026] A further advantageous embodiment is one in which the holding body comprises a housing with a receptacle, particularly designed as a blind hole, preferably with an elongated hole, in which the locking element is received in a manner secured against rotation. The locking element, in particular, comprises a locking element end section corresponding to the receptacle and flattened parallel to each other on opposite sides. This configuration also contributes to particularly good protection of the ski brake locking mechanism against icing.

[0027] The invention further relates to a touring ski binding with a heel unit according to one or more of claims 1 to 15.

[0028] Further features, advantages and details of the invention will now be described in more detail with reference to the drawing, which schematically shows an embodiment of the invention.

[0029] Fig. 1 is an exploded view of a heel unit of a touring ski binding according to an embodiment of the invention,

[0030] Fig. 2 a top view of the heel unit in entry position,

[0031] Fig. 2a an oblique view of the heel unit in entry position,

[0032] Fig. 2b a section along the line Ilbc-IIbc of Fig. 2,

[0033] Fig. 2c is a perspective section along the line Ilbc-IIbc of Fig. 2,

[0034] Fig. 2d is a section along the line IId-IId of Fig. 2, Fig. 3a is an oblique view of the heel unit in intermediate position,

[0035] Fig. 3b a perspective section analogous to Fig. 2c through the heel unit in intermediate position,

[0036] Fig. 3c is an enlargement of a section of Fig. 3b,

[0037] Fig. 4a an oblique view of the heel unit in the ascent position,

[0038] Fig. 4b a section analogous to Fig. 2b through the heel unit in the ascent position,

[0039] Fig. 4c shows a section of Fig. 4b as a perspective section,

[0040] Fig. 5 a bottom view of a brake housing,

[0041] Fig. 6 a bottom view of a guide plate,

[0042] Fig. 7 is a section along the line VII-VII of Fig. 8,

[0043] Fig. 8 is a section along the line VIII-VIII of Fig. 7,

[0044] Fig. 9 is a section along the line IX-IX of Fig. 7,

[0045] Fig. 10 an oblique view of a push rod,

[0046] Fig. 11 a plan view of a housing base and

[0047] Fig. 12 an oblique view of a locking element.

[0048] The invention relates to a heel unit for a touring ski binding, which, in addition to the heel unit, comprises a front unit, for example, a toe piece constructed in a conventional manner. The description and claims refer to a heel unit mounted on the ski. For the sake of clarity, a ski has been omitted. Some of the terms used below are defined below.

[0049] “Ski plane” refers to the flat part of the top of the ski to which the touring ski binding can be attached.

[0050] “Ski longitudinal direction” means the longitudinal direction of the ski as seen from above onto the ski plane.

[0051] “Ski longitudinal section center plane” means the plane perpendicular to the ski plane and running through the center of the ski in the longitudinal direction of the ski.

[0052] "Transverse direction" refers to directions that are perpendicular to the ski's longitudinal direction, at a constant distance from the ski plane and, when viewed from above, perpendicular to the ski's longitudinal plane. The transverse direction is therefore perpendicular to the ski's longitudinal center plane.

[0053] Directional and positional specifications or related expressions such as "top" or "bottom" of components, "vertical", "upper", "from above", "rear" and the like refer to the orientation of the components in question with respect to the ski or the ski plane, the ski longitudinal direction, the transverse direction or the ski tip or the ski tail.

[0054] First, the arrangement and design of the components of the heel unit will be discussed, followed by the functionality of the heel unit.

[0055] As shown in Fig. 1 in combination with Fig. 2a, the heel unit comprises a guide rail 1, a heel piece 2 (Fig. 2a), and a ski brake 3 connected to the heel piece 2. The guide rail 1 can be mounted on the ski in a known manner and is provided on its upper side with a surface depression 1a (Fig. 1) running in the longitudinal direction of the ski and centrally located with respect to the ski's longitudinal section center plane. At the end facing the ski end, a central, thread-like engagement structure 1b (Fig. 1) is formed in the longitudinal direction of the ski, consisting of alternating depressions and elevations. The heel piece 2 (Fig. 2a), together with the ski brake 3, is linearly displaceable on the guide rail 1 and can be fixed and released thereon in a variable position.

[0056] The ski brake 3 is designed essentially symmetrically to the ski longitudinal section center plane, comprises a brake housing 4, a brake pedal 5, two brake levers 6 and a brake support 7 (Fig. 1).

[0057] According to Fig. 1, the brake housing 4 has on its side facing the tip of the ski two lateral through-bores 4a running in a transverse direction and in alignment with one another, on its side facing the end of the ski a recess 4c formed on the underside (Fig. 5), the design of which will be discussed later, a through-bore 4b running in a transverse direction in the area between the through-bores 4a and the recess 4c (Fig. 5) and a slot-shaped recess 4d lying in the ski longitudinal section center plane and open towards the ski tip.

[0058] The brake pedal 5 has - each on its underside - two through-holes 5a facing the tip of the ski, running in a transverse direction and in alignment with one another (Fig. 2b: one through-hole 5a can be seen) and two U-shaped receptacles 5b formed on the edges of the brake pedal 5, aligned with the through-holes 5a (Fig. 2b), open to the respective edge and to the underside of the brake pedal 5 (one can be seen), as well as a through-hole 5c facing the end of the ski, running in a transverse direction and passing through the median plane of the longitudinal section of the ski (Fig. 2b, note: through-hole 5c hidden), which is interrupted in sections by a slot-shaped recess 5d passing through the brake pedal 5 perpendicular to the plane of the ski.The brake support 7 lies essentially in the ski's longitudinal section center plane, has a through-hole 7a at its end region facing the ski tip, a through-hole 7b at its end region facing the ski tail, and a cam-like projection 7d located below the through-hole 7b, closer to the ski plane, and a brake support bolt 7c formed thereon, projecting on both sides and penetrating the brake support 7. The through-holes 7a, 7b and the brake support bolt 7c are each oriented in the transverse direction.

[0059] The brake support 7 extends in the region of its through-bore 7a into the recess 5d of the brake pedal 5 and is connected to the brake pedal 5 via a brake pedal bolt 8, which is guided through the through-bore 7a and the through-bore 5c (Fig. 2b, through-bore 5c concealed), in a manner pivotably mounted around the brake pedal bolt 8. Furthermore, the brake support 7 extends in the region of its through-bore 7b into the slot-shaped recess 4d of the brake housing 4 and is connected to the brake housing 4 via a brake bolt 9, which is guided through the through-bore 4b and the through-bore 7b (cf. Fig. 2b, Fig. 2c, through-bore 7b concealed). In addition, the brake support 7 is connected to a ski brake lock via the brake support bolt 7c, as will be explained in more detail.

[0060] The brake levers 6 are designed in a manner known per se, run through the through holes 4a of the brake housing 4 and are accommodated on the underside of the brake pedal 5 in the receptacles 5b and the through holes 5a (see Fig. 2a, Fig. 2b).

[0061] As shown in Fig. 1 in combination with Fig. 2a, the heel piece 2 (Fig. 2a) comprises a guide plate 10 and a holding body 11 located thereon (Fig. 2a), as well as further components (Fig. 1), which will be discussed in more detail below. According to Fig. 1, the guide plate 10 is composed of a plate-shaped base part 12 and a substantially circular-cylindrical, tower-shaped bearing part 13 located thereon and formed as a single piece therewith.

[0062] The base part 12 is designed symmetrically with respect to the ski longitudinal section center plane (see Fig. 7), has a flat upper side 12a running parallel to the ski plane and an engagement projection 12b pointing in the direction of the ski tip, corresponding to the recess 4c located on the underside of the brake housing 4 (Fig. 5) and engaging therein in a form-fitting manner in a releasable manner. As shown in Fig. 6, the base part 12 is provided on its underside with an elongated recess 12c which runs in the longitudinal direction of the ski and extends through the entire base part 12. At the end facing the tip of the ski, this recess is designed as a sleeve 12c' (see Fig. 2c) and has a cover surface 12c" facing away from the plane of the ski. From the cover surface 12c" extends a groove 12d which, when viewed from above, projects deeper into the base part 12 than the recess 12c.At the end of the recess 12c facing the tip of the ski, two opposing web-shaped support projections 12e are formed, which project into the recess 12c and run parallel to one another, which, in plan view, run in sections laterally of the groove 12d and project beyond it on both sides in the longitudinal extent.

[0063] According to Fig. 1, the bearing part 13 is located on the upper side 12a of the base part 12, being centrally located on the upper side 12a with respect to the transverse direction and offset toward the tip of the ski with respect to the longitudinal direction of the ski. The bearing part 13 consists of a lower bearing section 13a and a circular disk-shaped upper bearing section 13b located centrally thereon, which projects beyond the lower bearing section 13a over its entire outer circumference.

[0064] The lower bearing part section 13a has a rear support surface 13a' (Fig. 7, Fig. 8, lower bearing part section 13a not numbered in Fig. 7) running perpendicular to the ski plane and perpendicular to the ski longitudinal section center plane, facing the ski end, and a lateral support surface 13a" (cf. Fig. 7, Fig. 9) running perpendicular to the ski plane and perpendicular to the rear support surface 13a'. According to Fig. 7 to Fig. 9, the bearing part 13 - i.e. both the lower bearing part section 13a (Fig. 8, Fig. 9) and the upper bearing part section 13b (Fig. 8, Fig. 9) - and the base part 12 are jointly penetrated by a through-hole 14 of circular cross-section running perpendicular to the ski plane and centrally through the bearing part 13, which through-hole is located on the underside of the base part 12 at the groove 12d exits (Fig. 6, Fig. 8).

[0065] In the lower bearing section 13a (Fig. 8, Fig. 9), in the area of ​​the lower end section of the through hole 14 facing the ski plane, which adjoins the groove 12d (Fig. 8), a guide projection 15 (Fig. 7, Fig. 8) is formed, which guide projection 15 runs annularly around the lower bearing section 13a (Fig. 8, Fig. 9) in plan view (Fig. 7), is designed symmetrically with respect to the ski longitudinal section center plane and with respect to a transverse plane Ei running perpendicular to this in plan view (Fig. 7, transverse plane Ei coincides with line IX-IX) and gives the through hole 14 a hole end section 14a which is narrower than the rest of the through hole 14. On the upper side of the guide projection 15 (Fig. 7, Fig. 8) there is formed a ring-shaped circumferential guide track 15a (Fig. 7, Fig. 8) which - according to the symmetry of the guide projection 15 - is arranged with respect to the ski longitudinal section center plane and the

[0066] The transverse plane Ei (Fig. 7) is symmetrical. The slide track 15a has two diametrically opposed, lowest points 15a' (Fig. 7, Fig. 8) located closest to the ski plane, through which the ski's longitudinal section center plane passes, and two diametrically opposed, highest points 15a" (Fig. 7, Fig. 9) located furthest from the ski plane, through which the transverse plane Ei (Fig. 7) passes. The slide track 15a drops steadily (without discontinuities) and continuously from the highest points 15a" to the lowest points 15a'.

[0067] As shown in Fig. 1 in combination with Fig. 2c, in the recess 12c formed on the underside of the base part 12 (Fig. 2c), one behind the other - viewed from the tip of the ski to the tail - there is a push rod 16 that is displaceable in the longitudinal direction of the ski and spring-loaded towards the tip of the ski, a mechanically prestressed compression spring 17 supported on one longitudinal end of the push rod 16, and a screw-like adjusting element 18 that engages in the engagement structure 1b (Fig. 1) and is adjustable in its position relative to it, via the position of which the position of the heel jaw 2 (Fig. 2c) and ski brake 3 of the heel unit on the guide rail 1 (Fig. 1) can be adjusted. The push rod 16, the compression spring 17, and the adjusting element 18 form a prestressing device 35 (Fig. 1) for the ski brake 3, as will be explained in more detail below.

[0068] According to Fig. 10, the push rod 16 consists of a rod-shaped push rod section 16a facing the ski tip and a push rod section 16b facing the ski tip, with an arcuate cross-section perpendicular to the ski's longitudinal center plane and open toward the ski plane (the arcuate shape is implicitly evident from Fig. 2b, Fig. 2c). The push rod section 16a is provided with a cross-shaped receptacle 16c open toward the top, which is formed by a receiving groove 16c' running transversely and penetrating the push rod section 16a neither transversely nor perpendicularly to the ski plane, and a receiving slot 16c" crossing the receiving groove 16c', running in the ski's longitudinal direction, and open upwards and toward the front end of the push rod section 16a.The push rod section 16b has a locking projection 16d formed on its upper side, two lateral, web-shaped guide projections 16e running parallel to the ski plane, and a support projection 16f located within it, which is annular in the exemplary embodiment (Fig. 2b, Fig. 2c, ring shape not visible). Viewed in the longitudinal section of the ski, the locking projection 16d has the shape, or essentially the shape, of a right-angled triangle and, viewed in the aforementioned cross-section, has a flat, inclined sliding surface 16d' forming the base of the triangle, which slopes down toward the ski end to the ski plane (cf. Fig. 2b, Fig. 2c). The sliding surface 16d' is therefore inclined relative to the ski plane.

[0069] As shown in Fig. 2c in combination with Fig. 10, the push rod 16 is positioned in the recess 12c of the base part 12 (Fig. 2c) and guided through the sleeve 12c' (Fig. 2c) in such a way that the cross-shaped receptacle 16c (Fig. 10) protrudes in the direction of the ski tip from the base part 12, more precisely from the sleeve 12c' (Fig. 2c), the locking projection 16d (Fig. 10) is guided in the groove 12d of the base part 12 (Fig. 2c), the guide projections 16e (Fig. 10) rest on the support projections 12e of the base part 12 (Fig. 6) and the spring abutments of the compression spring 17 (Fig. 2c) on the support projection 16f (Fig. 2c) and on the adjusting element 18 (Fig. 2c) are formed so that the compression spring 17 (Fig. 2c) presses the push rod 16 (Fig. 2c) towards the tip of the ski. The brake support bolt 7c (Fig. 2c) is inserted from above into the cross-shaped receptacle 16c (Fig. 10), with the brake support 7 (Fig. 2c) being pivoted in the cross-shaped receptacle 16c (Fig. 10) around the brake support bolt 7c (Fig.2c) is pivotally mounted and wherein the receiving slot 16c" (Fig. 10) ensures the required relative movement between the brake support 7 (Fig. 2c) and the push rod 16 when the brake pedal 5 (Fig. 2c) is pressed down.

[0070] As already mentioned, the compression spring 17 (Fig. 2c) is mechanically pre-tensioned and acts on the push rod 16. As long as the ski brake 3 (Fig. 2c) is not mounted, the push rod section 16b (Fig. 10) ensures that the push rod 16 cannot protrude forward from the base part 12 (Fig. 2c). When connecting the ski brake 3 to the guide plate 10 (Fig. 1)—where, as already mentioned, the connection is made via the engagement projection 12b (Fig. 1) and the recess 4c (Fig. 5)—the brake support bolt 7c (Fig. 1) is inserted into the cross-shaped receptacle 16c (Fig. 10) in such a way that the push rod 16 (Fig. 1, Fig. 2c, Fig. 10) is pushed backward, creating a preload on the compression spring 17 (Fig. 1, Fig. 2c). As soon as the ski brake 3 is connected to the guide plate 10 (Fig. 1), the push rod 16, and via it the brake support 7 and thus the ski brake 3, are spring-loaded (Fig. 2c).The push rod 16, the compression spring 17 and the adjusting element 18 thus form the already mentioned pretensioning device 35 (Fig. 1).

[0071] As shown in Fig. 1, the holding body 11 (Fig. 2a) has a housing 19 which is composed of an elongated cuboid-shaped lower housing part 20 and a housing upper part 21 pushed onto the latter, wherein the housing upper part 21 is connected to the housing lower part 20 via a bolt connection comprising two bolts 22 running in the transverse direction.

[0072] According to Fig. 11, the lower housing part 20 is penetrated by an elongated hole-shaped opening 20a running perpendicular to the ski plane and aligned in the longitudinal extension of the lower housing part 20, so that the lower housing part 20 is designed like a frame. Inside the lower half of the lower housing part 20 (cf. Fig. 1), there is a guide projection 20b that surrounds one longitudinal end of the opening 20a in a U-shaped manner in plan view (viewing direction perpendicular to the ski plane) and two guide projections 20c located at the other longitudinal end as an extension of the U-legs of the guide projection 20b, which are opposite one another and run straight in plan view, wherein the guide projections 20b, 20c end at the same level perpendicular to the ski plane inside the lower housing part 20 (cf. Fig. 1). The guide projections 20b, 20c provide the opening 20a with a U-shaped opening section 20a' relative to the outer circumference and a circular opening section 20a" in plan view.In the housing lower part 20, on the side facing the circular opening section 20a", a threaded bore 20d (not visible in Fig. 11, see Fig. 2b, Fig. 2c) is formed, which extends through the housing lower part 20 and is diametrically opposite the U-shaped opening section 20a'. For assembly of the holding body 11 (Fig. 2a), the housing lower part 20 can be pushed from above onto the bearing part 13 (Fig. 1) over the circular opening section 20a'.

[0073] As shown in Fig. 1 in combination with Fig. 2b and Fig. 2c, in the area of ​​the lower housing part 20 (numbered only in Fig. 1) there is a cuboid- and block-like slide 24 (numbered only in Fig. 1), a compression spring 23 and an actuator 25, which together form a pressing device 36 (Fig. 1) for the holding body 11 (Fig. 2a). The slide 24 is spring-loaded by the compression spring 23, wherein the slide 24 and the compression spring 23 are arranged in the lower housing part 20 (Fig. 1 in conjunction with Fig. 2b, Fig. 2c, lower housing part 20 and slide 24 numbered only in Fig. 1) and the actuator 25 is screwed into the threaded bore 20d (Fig. 2b, Fig. 2c). According to Fig. 1, the slider 24 has on its opposite sides a stepped projection 24a and a blind hole 24b running at a constant distance from the ski plane (Fig.2b) and further, on its other opposite sides, straight, parallel, web-shaped guide projections 24c, which are constantly spaced and identical to the ski plane. The compression spring 23 is supported inside the blind hole 24b (Fig. 2b) and inside the actuator 25 (Fig. 2b, Fig. 2c), so that one spring abutment is formed by the blind hole 24b and the other spring abutment by the actuator 25. The slide 24 is guided in the housing lower part 20 in a linearly displaceable manner in the longitudinal extension of the housing lower part 20 via its guide projections 24c (Fig. 1) and the guide projections 20b, 20c (Fig. 11) located inside the housing lower part 20, wherein it is pressed by the compression spring 23 in the direction of the bearing part 13 so that the offset projection 24a engages under the upper bearing part section 13b (Fig. 2b, Fig. 2c).

[0074] Due to the described mounting of the housing lower part 20 (Fig. 1) on the bearing part 13 (Fig. 1), the holding body 11 (Fig. 2a) is rotatable about the bearing part 13 and therefore about a vertical axis of rotation ai (Fig. 2b) running centrally through the through hole 14 (Fig. 1). The vertical axis of rotation ai is perpendicular to the ski plane.

[0075] The bearing part 13 (Fig. 1) forms together with the pressing device 36 (Fig. 1) a combined axial-radial bearing, which allows the pivoting movement of the holding body 11 (Fig. 2a) relative to the guide plate 10 (Fig. 1, Fig. 2a).

[0076] According to Fig. 1 and Fig. 2a, the upper housing part 21 has on its upper side an edge-side holding element 21a located at one end region, two central holding elements 21b spaced from said element and opposite one another (only one visible in Fig. 2a), and a circular segment-like, edge-side holding element 21c. A U-shaped holding bracket 26 is guided around the outside of the holding elements 21a, 21b, 21c, contacting them and, due to its design, pressed against them. The U-shaped holding bracket has two free ends for receiving a correspondingly designed ski boot and is applied in the region of its curved section to the circular segment-like, edge-side holding element 21c, the holding elements 21a, 21b projecting beyond the holding bracket 26 on its upper side in a clamp-like manner (Fig. 2a). By means of a securing element 27, the retaining bracket 26 is secured against being pushed down from the upper housing part 21. As shown in Fig.As shown in Figure 1, a climbing aid spring 28 is located between the central holding elements 21b, enclosing one central holding element 21b in a U-shape. Above the climbing aid spring 28, a bolt 29 is arranged, guided between the central holding elements 21b and attached to the edge-side holding elements 21a, 21c, on which bolt two climbing aids 30, 31 are pivotally mounted. During pivoting movement, the climbing aids 30, 31 interact with the climbing aid spring 28 in such a way that the climbing aid spring 28 is pressed downward, thus holding the climbing aids 30, 31 in position.

[0077] According to Fig. 2b, Fig. 2c, Fig. 2d, the upper housing part 21 has a receptacle 32 (see Fig. 4c) extending from its underside, running perpendicular to the ski plane, in a straight line extension of the through hole 14 (Fig. 1), designed as a blind hole, with a rectangular or elongated hole-shaped cross section parallel to the ski plane.

[0078] According to Fig. 1, Fig. 2b, Fig. 2c and Fig. 2d, a pin-shaped, elongated locking element 33, which is spring-loaded in the direction of the ski plane, is positioned inside the housing 19 (Fig. 1) in the through-hole 14 passing through the bearing part 13 and the base part 12. The locking element 33 is therefore aligned along the vertical axis of rotation ai (Fig. 2b), is located in the heel piece 2 (Fig. 2b, Fig. 2c) and is further spaced from the ski plane than the push rod 16 (Fig. 1, Fig. 2b, Fig. 2c). According to Fig. 12, the locking element 33 has an upper locking element end section 33a which is flattened on opposite sides and parallel to one another and which is supported by the receptacle 32 (Fig. 2b, Fig. 2c, Fig.2d) is received on the underside of the upper housing part 21 in a manner secured against rotation, two diametrically opposed control projections 33b (one visible), via which the locking element 33 rests on the guide track 15a of the guide projection 15 inside the through hole 14 (Fig. 2d), and a lower locking element end section 33c located in the hole end section 14a (cf. Fig. 2d). The upper locking element end section 33a has - due to its flattening - two flat surfaces 33a' aligned parallel to one another. The free end of the lower locking element end section 33c is chamfered below the one control projection 33b, so that the lower locking element end section 33c has a flat, inclined sliding surface 33c' at its free end. The sliding surface 33c' is therefore inclined to the ski plane. As Fig. 12 in combination with Fig. 1 shows, the locking element 33 is arranged in the through hole 14 (Fig.1) is positioned such that - in the entry position of the heel unit, as will be explained later - the sliding surface 33c' (Fig. 12) points towards the lateral support surface 13a" (Fig. 1) of the lower bearing section 13a (Fig. 1) (see also Fig. 2d). As Fig. 12 also shows, a compression spring 34 is pushed onto the locking element 33 from above, one spring abutment being formed by the control projections 33b (cf. Fig. 2d) and the other spring abutment being formed at the outlet of the receptacle 32 (see Fig. 2b to Fig. 2d). The compression spring 34 presses the locking element 33 in the direction of the ski plane. The spring-loaded locking element 33 forms a link guide together with the link track 15a (Fig. 7).

[0079] The functionality of the heel unit is explained below.

[0080] The heel unit can assume an entry position, a downhill position, an intermediate position and an ascent position.

[0081] The ski brake 3 can assume an active position and an inactive position.

[0082] The locking element 33 can assume a release position and a locking position.

[0083] The holding body 11 and the slider 24 can assume mutually corresponding first positions and mutually corresponding second positions.

[0084] The heel unit includes a ski brake lock and a side release function group.

[0085] Zz / r heel unit in the entry position

[0086] Fig. 2a to Fig. 2d show the heel unit in the entry position for stepping into the touring ski binding and subsequently holding a ski boot. According to Fig. 2a, in the entry position, the holding body 11 is aligned relative to the guide plate 10 such that a ski boot inserted into a front unit and having corresponding receptacles for the holding bracket 26 can be brought into engagement with the holding bracket 26 (first position of the holding body 11). As Fig. 2b and Fig. 2c show, the compression spring 17 presses the push rod 16 towards the tip of the ski, whereby the brake pedal 5 is pressed upwards via the brake support 7 and the free ends of the brake levers 6 are pressed downwards, so that the ski brake 3 is in the aforementioned active position, i.e., pretensioned into this position by means of the pretensioning device 35 (Fig. 1). If the ski brake 3 is in the active position, the brake levers 6 protrude from the ski plane in the known manner and engage with the ground.The compression spring 23 presses the slider 24 (Fig. 1) toward the bearing part 13, with the offset projection 24a of the slider 24 (Fig. 1) being pressed against the rear support surface 13a' of the lower bearing part section 13a, so that the heel piece 2 is secured against unintentional rotation (first position of the slider 24). By turning the actuator 25, the preload of the compression spring 23 and thus the release force to be overcome for the lateral release of the heel piece 2 is adjusted (see "The heel unit in the downhill position"). The locking element 33 sits with its control projections 33b (Fig. 12) on the highest points 15a" (Fig. 7, Fig. 9) of the guide track 15a (Fig. 7, Fig. 8), so that the lower locking element end section 33c is located outside (above) the groove 12d of the base part 12 (Fig.2c), wherein the locking element 33 - as already mentioned - is inserted such that the sliding surface 33c' faces the lateral support surface 13a" of the lower bearing section 13a (Fig. 2d). The locking element 33 is in the release position, which defines a first position of the locking element 33 relative to the ski plane.

[0087] Two heel units in downhill position (not shown)

[0088] When stepping into the heel unit, the ski boot is engaged in a known manner with the retaining bracket 26 of the holding body 11, whereby the brake levers 6 are moved essentially into the plane of the ski via the brake pedal 5, i.e., come to rest to the side of the ski, so that the ski brake 3 is in the inactive position. When the ski brake 3 is in the inactive position, the brake levers 6 are therefore located to the side of the ski and thus do not engage the ground. As can be seen from Fig. 1, when stepping into the heel unit, the push rod 16, which is connected to the brake pedal 5 via the brake support bolt 7c of the brake support 7, is pressed towards the end of the ski against the force of the compression spring 17. After stepping into the heel unit, the heel unit is in the downhill position, the ski brake 3 is in the inactive position, the locking element 33 remains in the release position, and the slider 24 and the holding body 11 remain in their first positions.

[0089] When forces acting in a lateral direction exceed the release force (cf. the heel unit in the entry position), the holding body 11 is deflected by pivoting about the bearing part 13, more precisely about the vertical axis of rotation ai (Fig. 2b), so that the holding bracket 26 is disengaged from the ski boot and, essentially at the same time, the push rod 16 is pressed toward the ski tip by the mechanically pretensioned compression spring 17, thereby causing the ski brake 3 to assume the active position via the brake support 7. The lateral release functional group is thus formed by the pressing device 36 (slider 24, compression spring 23, actuator 25) and the rotatably mounted holding body 11.

[0090] Zz / / ' Heel unit in the intermediate position

[0091] Fig. 3a to Fig. 3c show the heel unit in the intermediate position. As a comparison of Fig. 2a with Fig. 3a shows, in order to move the heel unit from the entry position into the intermediate position, the holding body 11 is to be rotated by 90° around the bearing part 13 (Fig. 3b), i.e. around the vertical axis of rotation ai (Fig. 2b), relative to the entry position relative to the guide plate 10, and against the force of the compression spring 23 (Fig. 1) in such a way that the compression spring 23 (Fig. 1) presses the offset projection 24a of the slider 24 (Fig. 1) against the lateral support surface 13a" (Fig. 1 in conjunction with Fig. 3a) and the heel jaw 2 is secured against unintentional twisting (second position of the slider 24, second position of the holding body 11). If the heel jaw 2 is moved from the entry position into the intermediate position, as a comparison of Fig. 2c with Fig.3b shows - the locking element 33 rotated in a corresponding manner to the heel jaw 2, since, as already explained - the upper locking element end section 33a is received by the slot-shaped receptacle 32 on the underside of the upper housing part 21 in a manner secured against rotation. At the same time, the locking element 33 is changed in its height position relative to the rest of the heel piece 2, since the control projections 33b (Fig. 3b) are pushed along the guide track 15a (Fig. 7) from the highest points 15a" (Fig. 7, Fig. 9) to the lowest points 15a' (Fig. 7, Fig. 8), whereby the locking element 33 is moved along the axis of rotation ai (Fig. 2) and is lowered relative to the heel piece 2 in the direction of the ski plane such that - as Fig. 3b and Fig. 3c show - the lower locking element end section 33c projects into the groove 12d of the base part 12 and due to the rotation the sliding surface 33'c (Fig.3c) toward the ski tip and parallel and opposite to the sliding surface 16d' of the locking projection 16d. The locking element 33 is now in the locked position, which defines a second position of the locking element 33 relative to the ski plane. The ski brake 3 (Fig. 3a, Fig. 3b) remains in the active position. The heel unit can be moved from the intermediate position into the ascent position (see "The heel unit in the ascent position").

[0092] Furthermore, the heel unit can be brought back into the entry position from the intermediate position by rotating the holding body 11 accordingly.

[0093] Two heel units in the ascent position

[0094] Fig. 4a to Fig. 4c show the heel unit in the ascent position, in which the ski boot is released in the heel area and the climbing aids 30, 31 (Fig. 4a, Fig. 4b) can be used as intended. As a comparison of Fig. 3a with Fig. 4a shows, in order to move the heel unit from the intermediate position (Fig. 3a) into the ascent position (Fig. 4a) the ski brake 3 must be moved from the active position to the inactive position. This is done in particular by exerting appropriate pressure on the brake pedal 5, preferably by the skier who steps onto the brake pedal 5. In doing so - as a comparison of Fig. 3b with Fig. 4b shows - the push rod 16 is pushed towards the end of the ski via the brake support 7 against the force of the compression spring 17, so that - as a comparison of Fig. 3c with Fig.4c shows - the locking projection 16d with its sliding surface 16d' strikes the sliding surface 33c' of the lower locking element end section 33c, and the locking element 33 in the locked position is briefly lifted against the force of the compression spring 34 and lifted out of the groove 12d (the locking element 33 thus moves briefly away from the ski plane). As soon as the locking projection 16d has passed the locking element 33, - as shown in Fig. 4c - the locking element 33 in the locked position is pressed downward by the compression spring 34, whereby the locking element end section 33c returns to the groove 12d, the locking projection 16d engages behind the lower locking element end section 33c, and the ski brake 3 is thereby held in the inactive position.

[0095] The aforementioned ski brake locking mechanism is therefore formed by the aforementioned guide rail, consisting of the spring-loaded locking element 33 (Fig. 1) and guide rail 15a (Fig. 7, Fig. 8), as well as the spring-loaded push rod 16 (Fig. 1). The spring-loaded push rod 16 is simultaneously part of the aforementioned pre-tensioning device 35 (Fig. 1). To move the heel unit from the ascent position (Fig. 4a) to the entry position (Fig. 2a), the holding body 11 must be pivoted or swung back accordingly. The slide 24 (Fig. 1) is brought from the second position into the first position and the control projections 33b (Fig. 4c) of the locking element 33 (Fig. 4c) are moved along the guide track 15a (Fig. 7, Fig. 8) from the lowest points 15a' (Fig. 7, Fig. 8) to the highest points 15a" (Fig. 7, Fig.9), whereby the locking element 33 is raised such that the lower locking element end section 33c moves out of the groove 12d of the base part 12 (Fig. 2b, Fig. 2c), so that the lower locking element end section 33c no longer engages behind the locking projection 16b. The locking element 33 is thus moved from its locked position into the release position. As soon as the locking element 33 is in the release position, the push rod 16 is moved towards the ski tip via the pretensioned compression spring 17, thus bringing the ski brake 3 into the active position (Fig. 2b, Fig. 2c).

[0096] The ski brake locking mechanism from the guide rail (from the spring-loaded locking element 33 and the guide rail 15a) and the spring-loaded push rod 16 thus holds the ski brake 3 in the inactive position when the heel unit is in the ascent position and ensures that the ski brake 3 is moved from the inactive position to the active position when the heel unit moves from the ascent position to the entry position.

[0097] The invention is not limited to the described embodiment.

[0098] The locking element 33 can have only a single control projection.

[0099] The pretensioning device 35 for the ski brake 3 can be formed by a torsion spring installed in the area of ​​the ski brake 3, which pretensions the ski brake 3 into the active position. Instead of the push rod 16, a pull rod is provided, which is pulled by the torsion spring via the brake support 7 toward the tip of the ski. The compression spring 17 is thus omitted. When the ski brake 3 is actuated, the pull rod is pushed toward the tail of the ski against the force of the torsion spring. The compression spring 17 or the torsion spring form a brake actuation spring that pretensions the ski brake 3 into the active position.

[0100] The push rod 16 and the pull rod each represent, in a generalized form, an actuating rod belonging to the ski brake locking mechanism, which is connected in an articulated manner to a part of the ski brake 3 and which is further spring-loaded in the longitudinal direction of the ski and in the direction of the ski tip.

[0101] List of reference symbols

[0102] 1 guide rail la superficial depression

[0103] 1b Intervention structure

[0104] 2 heel pieces

[0105] 3 ski brake

[0106] 4 Brake housing 4a Through hole

[0107] 4b Through hole

[0108] 4c recess

[0109] 4d slot-shaped recess

[0110] 5 Brake pedal 5a Through hole

[0111] 5b Recording

[0112] 5c Through hole

[0113] 5d slot-shaped recess

[0114] 6 Brake lever 7 Brake support

[0115] 7a Through hole

[0116] 7b Through hole

[0117] 7c Brake support bolt

[0118] 7d cam-like projection 8 brake pedal bolt

[0119] 9 brake bolts

[0120] 10 Guide plate

[0121] 11 Holding body

[0122] 12 Base part 12a Top

[0123] 12b engagement projection

[0124] 12c recess 12c' sleeve

[0125] 12c" deck area

[0126] 12d > . Nut

[0127] 12e support projection

[0128] 13 Bearing part

[0129] 13a lower bearing section

[0130] 13a' rear support surface

[0131] 13a" lateral support surface

[0132] 13b upper bearing section

[0133] 14 through hole

[0134] 14a Hole end section

[0135] 15 lead

[0136] 15a Slide track

[0137] 15a' deepest point

[0138] 15a" highest point

[0139] 16 Push rod

[0140] 16a Push rod section

[0141] 16b Push rod section

[0142] 16c cross-shaped image

[0143] 16c' mounting groove

[0144] 16c" recording slot

[0145] 16d locking projection

[0146] 16d' sliding surface

[0147] 16e lead

[0148] 16f support approach

[0149] 17 compression spring

[0150] 18 Control element

[0151] 19 housings

[0152] 20 Housing base

[0153] 20a Opening

[0154] 20a', 20a“ opening section

[0155] 20b Leading edge 20c Leading edge

[0156] 20d threaded hole

[0157] 21 Upper housing part

[0158] 21a edge-side retaining element 21b middle retaining element

[0159] 21c edge-side retaining element

[0160] 22 bolts

[0161] 23 compression spring

[0162] 24 Slider 24a stepped projection

[0163] 24b blind hole

[0164] 24c lead

[0165] 25 actuator

[0166] 26 Retaining bracket 27 Securing element

[0167] 28 Climbing aid spring

[0168] 29 bolts

[0169] 30 climbing aid

[0170] 31 Climbing aid 32 Mount

[0171] 33 Locking element

[0172] 33a upper locking element end section

[0173] 33a' area

[0174] 33b Control projection 33c Lower locking element end section

[0175] 33c' gliding surface

[0176] 34 compression spring

[0177] 35 Pre-tensioning device

[0178] 36 Pressing device Ei transverse plane ai vertical axis of rotation

Claims

Patent claims 1. A heel unit for a touring ski binding, wherein the heel unit can be brought into an entry position, an intermediate position and a climbing position, and wherein the heel unit comprises: a ski brake (3) which can be brought into an active position and an inactive position, a heel jaw (2) with a rotatable holding body (11) for holding a ski boot, wherein the holding body (11) has a vertical axis of rotation (ai), and a ski brake lock (15a, 16, 33), wherein the heel unit can be brought into the entry position and the intermediate position in the active position of the ski brake (3) by pivoting the holding body (11),wherein in the intermediate position of the heel unit, by actuating the ski brake (3), the ski brake (3) is moved from the active position to the inactive position and thus the heel unit is moved from the intermediate position to the ascent position, and wherein in the ascent position of the heel unit, by rotating the holding body (11), the ski brake is moved from the inactive position to the active position and thus the heel unit is moved into the boarding position, characterized in that the ski brake lock (15a, 16, 33) comprises a linearly displaceable, spring-loaded actuating rod (16) connected to the ski brake (3) and a slotted guide (15a, 33) located in the heel jaw (2), wherein the slotted guide (15a, 33) is aligned along the vertical axis of rotation (ai) of the holding body (11), rotates with the holding body (11) and thereby along the axis of rotation (ai) shifting,comprises a spring-loaded locking element (33) in the direction of the ski plane, wherein the locking element (33) assumes a release position in the entry position of the heel unit, in which the ski brake (3) remains in the active position when actuated, and, wherein the locking element (33) assumes a locking position in the intermediate position of the heel unit, in which, upon actuation of the ski brake (3), the actuating rod (16) is brought into engagement with the locking element (33) against its spring loading and against the spring loading of the locking element (33), so that the ski brake (3) remains in the inactive position and the heel unit is in the ascent position, wherein, upon transition of the heel unit from the ascent position to the entry position, the locking element (33) assumes the release position, whereby the actuating rod (16) and the locking element (33) are disengaged and the actuating rod (16) is pushed back or retracted by its spring loading, so that the ski brake (3) assumes the active position. Heel unit according to claim 1, characterized in that the actuating rod (16) is spring-loaded in the longitudinal direction of the ski and in the direction of the ski tip.Heel unit according to one or both of claims 1 and 2, characterized in that the actuating rod (16) is a push rod (16) spring-loaded by a prestressed compression spring (17) or a pull rod spring-loaded by a torsion spring. Heel unit according to claim 3, characterized in that the push rod (16) and the compression spring (17) belong to a prestressing device (35) that prestresses the ski brake (3) into the active position, or that the torsion spring forms a prestressing device (35) that prestresses the ski brake (3) into the active position. Heel unit according to one or both of claims 3 and 4, characterized in that the actuating rod (16) is a push rod (16) having a support projection (16f) located in its interior, in particular annular, on which the compression spring (17) is supported. Heel unit according to one or more of claims 1 to 5, characterized in that the locking element (33) and the actuating rod (16) each have an inclined sliding surface (33c', 16d') which are aligned parallel to one another when the locking element (33) is in the locked position and which meet when the heel unit transitions from the intermediate position to the ascending position. Heel unit according to claim 6, characterized in that the actuating rod (16) has a locking projection (16d), which is in particular triangular in cross-section, on which the sliding surface (16d') is formed and via which the actuating rod (16) can be brought into engagement with the locking element (33). Heel unit according to one or both of claims 6 and 7, characterized in that the sliding surface (33c') of the locking element (33) is formed at one end of the locking element (33).Heel unit according to one or more of claims 1 to 8, characterized in that the slotted guide (15a, 33) has a slotted track (15a) which is annular in plan view and has two diametrically opposed, lowest points (15a') and two diametrically opposed, highest points (15a"), and wherein the locking element (33) has two diametrically opposed control projections (33b) guided on the slotted track (15a).Heel unit according to one or more of claims 1 to 9, characterized in that the holding body (11) is rotatable about the vertical axis of rotation (ai) via a combined axial-radial bearing (13, 26, 13, 23, 24, 25) formed in the heel jaw (2), which comprises a pressing device (23, 24, 25; 36), wherein by rotating the holding body (11) it can be brought into a first position and into a second position, wherein the pressing device (36) holds the holding body (11) in the respective position and wherein the locking element (33) is arranged in a region of the axial-radial bearing (13, 36; 13, 23, 24, 25) which runs along the vertical. Rotation axis (ai) extending through hole (14), wherein when the holding body (11) is in the first position the blocking element (33) is in the blocking position and when the holding body (11) is in the second position the blocking element (33) is in the release position and wherein a part of the link guide (15a, 33), in particular the link track (15a), is located in the through hole (14).

11. Heel unit according to claim 10, characterized in that the axial-radial bearing (13, 26, 13, 23, 24, 25) and the pressing device (23, 24, 25; 36) comprise a common, linearly displaceable, spring-loaded slider (24) and the axial-radial bearing (13, 26, 13, 23, 24, 25) further comprises a tower-shaped bearing part (13), wherein the slider (24) and the tower-shaped bearing part (13) interact in such a way that the holding body (11) is rotatably mounted on the tower-shaped bearing part (13).

12. Heel unit according to one or more of claims 1 to 11, characterized in that the heel jaw (2) comprises a guide plate (10) which has a plate-shaped base part (12) with a recess (12c) formed on the underside and running in the longitudinal direction of the ski, in which the actuating rod (16) is guided, wherein the actuating rod (16) preferably has two lateral, web-shaped guide projections (16e) running parallel to the plane of the ski, which are guided on web-shaped support projections (12e) running parallel to one another, which project into the recess (12c) formed on the underside of the base part (12).

13. Heel unit according to claim 11 and 12, characterized in that the tower-shaped bearing part (13) is a component of the guide plate (10) and is located on the base part (12) of the guide plate (10), wherein the through hole (14) in which the locking element (33) is located passes through the tower-shaped bearing part (13) and the plate-shaped base part (12).

14. Heel unit according to one or more of claims 1 to 13, characterized in that the actuating rod (16) has a cross-shaped receptacle (16c) in which a brake support bolt (7c) of a brake support (7) of the ski brake (3) is mounted in a manner pivotable about the brake support bolt (7c). Heel unit according to one or more of claims 1 to 14, characterized in that the holding body (11) has a housing (19) with a receptacle (32), designed in particular as a blind hole, preferably in the shape of an elongated hole, in which the locking element (33) is received in a manner secured against rotation, wherein the locking element (33) has in particular a locking element end section (33a) corresponding to the receptacle (32) and flattened on opposite sides parallel to one another. Touring ski binding with a heel unit according to one or more of claims 1 to 15.

Images