Heel piece for ski binding

Abstract

A heel piece (1) for a ski binding is disclosed, comprising: a base (2); a tower (3); a ski brake (4) which comprises a first braking element (11) and elastic means (5) acting on the first braking element (11); a pedal (6) which is connected to the first braking element (11) such that when it is in a lowered pedal position (PPA), the first braking element (11) is in a first inactive braking position (PPFD), and when it is in a raised pedal position (PPS), the first braking element (11) is in a first active braking position (PPFA); a locking element (7); a crank (8) which is connected to the pedal (6); a connecting rod (9) which is connected to the crank (8). The heel piece (1) also comprises a cursor (10) which: is movable between an interference position (PI) and a non-interference position (PNI); is arranged so that when it is in the interference position (PI) and when the connecting rod (9) is in an advanced position (AP), then the cursor (10) interferes with the connecting rod (9), thus retaining the connecting rod (9) in the advanced position (AP) and consequently retaining the first braking element (11) in the first inactive braking position (PPFD) and the pedal (6) in the lowered pedal position (PPA); is controllable by the locking element (7) to reach or maintain the interference position (PI) when the locking element (7) is brought into the operative position (POP).

Description

DESCRIPTION OF THE INVENTION

[0001] The present invention belongs to the technical field relating to a heel piece for a ski touring binding or for an alpine ski binding.

[0002] A heel piece for a ski binding is known from EP 4112140A1, wherein: it comprises a base fixable to a ski; it comprises a tower which is constrained to the base and which rises from the base; it comprises a ski brake which is borne by the base and comprises: a first braking element which is movable to assume a first active braking position, to brake the ski, and a first inactive braking position; elastic means acting on the first braking element to exert an elastic force tending to bring the first braking element into the first active braking position; it comprises a pedal which: is borne by the base; can assume a lowered pedal position, that is where the pedal is closer to the base, and a raised pedal position, that is where the pedal is further from the base; is connected to the first braking element such that when it is in the lowered pedal position, the first braking element is in the first inactive braking position, and when it is in the raised pedal position, the first braking element is in the first active braking position; it comprises a heel riser which is rotatably borne by the tower and which is movable to assume an operative position and an inoperative position; it comprises a cable that connects the heel riser to the brake such that: when the heel riser is in the operative position the cable is in tension so that the first braking element is stably maintained in the first active braking position; and when the heel riser is in the inoperative position the cable is slack so that the first braking element can reach or remain in the first inactive braking position.

[0003] A drawback of this heel piece for a ski binding consists in the fact that with use the cable may wear out, up to the point of breaking.

[0004] In view of the above, the object of the present invention is to improve the reliability of the heel piece for a ski binding.

[0005] The above object is achieved by means of a heel piece for a ski binding in accordance with claim 1.

[0006] Specific embodiments of the invention will be described below in this disclosure, in accordance with what is reported in the claims and with the aid of the attached drawing plates, in which: figures 1 and 2 respectively show a perspective view and a top view of a heel piece for a ski binding, object of the present invention, in accordance with a first embodiment, in an initial configuration; figure 3 is the view of section III-III of fig. 2; figures 4 and 5 respectively show a perspective view and a top view of the heel piece for a ski binding of figures 1 and 2, in a downhill skiing configuration, which is obtained from the initial configuration by coupling the heel of the ski boot to the tower; figure 6 is the view of section VI-VI of fig. 5; figures 7 and 8 respectively show a perspective view and a top view of the heel piece for a ski binding of figures 1 and 2, in an uphill walking preparation configuration, which is obtained from the initial configuration by pressing the pedal downward; figure 9 is the view of section IX-IX of fig. 8; figure 10 is analogous to the view of fig.9, but refers to a previous instant in which the pedal has not yet completed its travel; figure 11 shows in perspective and enlarged scale a portion of the heel piece object of the present invention, in which an element forming part of the base has been omitted in order to illustrate a rotating element that otherwise would not have been visible; figure 12 shows in enlarged scale a portion of the heel piece indicated with K1 in fig. 10, but showing a different locking element, which instead of rotating can only translate; figures 13 and 14 respectively show a perspective view and a top view of the heel piece for a ski binding of figures 1 and 2, in an uphill walking configuration, which is obtained from the initial configuration by pressing the pedal downward and rotating the heel riser; figure 15 is the view of section XV-XV of fig. 14; figure 16 is the view of the enlarged detail K2 of fig.15, but provided in perspective; figures 17, 18, 19, and 20 are respectively analogous to figures 3, 6, 9, and 15 but refer to a second embodiment of the heel piece object of the invention; figure 21 is the view of the enlarged detail K3 of fig.20, but provided in perspective; figures 22, 23, 24, and 25 are respectively analogous to figures 3, 6, 9, and 15 but refer to a third embodiment of the heel piece object of the invention; figure 26 is the view of the enlarged detail K4 of fig.25, but provided in perspective; figures 27, 28, and 30 are respectively analogous to figures 3, 6, and 15 but refer to a fourth embodiment of the heel piece object of the invention; figure 29 shows in sectional view the heel piece in accordance with the fourth embodiment and in an uphill walking preparation configuration; figure 31 is analogous to the view of fig.30, but refers to a previous instant in which the pedal has not yet completed its travel; figure 32 is the view of the enlarged detail K5 of fig. 30, but provided in perspective; figures 33, 34, 36 are respectively analogous to figures 3, 6, 15 but refer to a fifth embodiment of the heel piece object of the invention; figure 35 shows in sectional view the heel piece in accordance with the fifth embodiment and in an uphill walking preparation configuration; figure 37 is analogous to the view of fig.36, but refers to a previous instant in which the pedal has not yet completed its travel; figure 38 is the view of the enlarged detail K6 of fig.36, but provided in perspective; figures 39, 40, 41, 42 are respectively analogous to figures 3, 6, 9, 15 but refer to a sixth embodiment of the heel piece object of the invention; figure 43 is the view of the enlarged detail K7 of fig.42, but provided in perspective.

[0007] With reference to the attached drawing plates, the numeral (1) generally indicates a heel piece for a ski touring binding or for an alpine ski binding, object of the present invention, wherein: it comprises a base (2) fixable to a ski (not illustrated); it comprises a tower (3) which is constrained to the base (2) and which rises from the base (2); it comprises a ski brake (4) which is borne by the base (2) and which comprises: a first braking element (11) which is movable to assume a first active braking position (PPFA), to brake the ski, and a first inactive braking position (PPFD); attraction or repulsion means (5) acting on the first braking element (11) to exert a force tending to bring the first braking element (11) into the first active braking position (PPFA); it comprises a pedal (6) which: is borne by the base (2); can assume a lowered pedal position (PPA), that is where the pedal (6) is closer to the base (2), and a raised pedal position (PPS), that is where the pedal (6) is further from the base (2); is connected to the first braking element (11) such that: when it is in the lowered pedal position (PPA), the first braking element (11) is in the first inactive braking position (PPFD); when it is in the raised pedal position (PPS), the first braking element (11) is in the first active braking position (PPFA); it comprises a locking element (7) which is borne by the tower (3) and which is movable to assume an operative position (POP) and an inoperative position (PIN); it comprises a mobile element (9) which is connected to the pedal (6), to assume: an advanced position (AP), that is where the mobile element (9) is closer to the tower (3), when the pedal (6) is in the lowered pedal position (PPA); and a retracted position (RP), that is where the mobile element (9) is further from the tower (3), when the pedal (6) is in the raised pedal position (PPS); it comprises a cursor (10) which: is borne by the tower (3); is movable between an interference position (PI) and a non-interference position (PNI); is arranged so that when it is in the interference position (PI) and when the mobile element (9) is in the advanced position (AP), then the cursor (10) interferes with the mobile element (9), thus retaining the mobile element (9) in the advanced position (AP) and consequently retaining the first braking element (11) in the first inactive braking position (PPFD) and the pedal (6) in the lowered pedal position (PPA); is controllable by the locking element (7) to reach (figs.17-38) or maintain (figs.1-16) the interference position (PI) when the locking element (7) is brought into the operative position (POP).

[0008] The mobile element (9) can be connected to the pedal (6) directly, see figures 39-43, or indirectly by means of a rotating element (8) which will be discussed later, see figures 1-38.

[0009] The base (2) can be substantially planar in shape.

[0010] The tower (3) can be coupled to the base (2) by means of a one-degree-of-freedom coupling, being able to slide or rotate with respect to it. Alternatively, the tower (3) can be fixed to the base (2), for example by means of fixing screws (not illustrated). In such case, therefore, the tower (3) cannot rotate or slide with respect to the base (2).

[0011] The tower (3) can extend in a direction substantially perpendicular to the axis of the ski when the base (2) is fixed to the ski.

[0012] The ski brake (4) may further comprise a second braking element (12) which is movable to assume a second active braking position (SPFA), to brake the ski, and a second inactive braking position (SPFD).

[0013] The first inactive braking position (PPFD) may be such that the first braking element (11) does not brake the ski, for example being arranged in a raised position which is substantially parallel to the ski when the base (2) is fixed to the ski (see for example fig.7).

[0014] Likewise, the second inactive braking position (SPFD) may be such that the second braking element (12) does not brake the ski, for example being arranged in a raised position which is substantially parallel to the ski when the base (2) is fixed to the ski (see again fig.7).

[0015] The first braking element (11) may be shaped as an arm. The second braking element (12) may also be shaped as an arm.

[0016] The ski brake (4) may comprise a rigid metal filament (15), which forms the first braking element (11) and the second braking element (12) (if provided), and which is connected to the pedal (6), as illustrated in the drawings.

[0017] The attraction or repulsion means (5) may comprise elastic means, for example one or more springs, or magnetic means, for example one or more permanent magnets.

[0018] If the attraction or repulsion means (5) are identified as elastic means, then the elastic means may be integrated into the rigid metal filament (15), if provided.

[0019] If the second braking element (12) is also provided, the attraction or repulsion means (5) also act on the second braking element (12) to exert a force tending to bring the second braking element (12) into the second active braking position (SPFA).

[0020] The locking element (7) may be arranged in the upper part of the tower (3), preferably at the top of the tower (3). Advantageously, the locking element (7) at the top of the tower (3) is more visible and easily reachable by hands or by ski poles.

[0021] The cursor (10) may comprise a stem (18). The stem (18) may be arranged such that a corresponding end thereof can be contacted by the locking element (7).

[0022] The tower (3) may comprise a first seat (21) for the sliding of the cursor (10). This first seat (21) may be formed inside the tower (3). The first seat (21) may extend parallel to the axis of extension of the tower (3). The first seat (21) may be a sliding channel that opens at the top of the tower (3).

[0023] In accordance with one aspect of the invention (figures 1-38): the heel piece (1) comprises a rotating element (8) which is rotatably borne by the base (2) and which can assume a first rotational position (PPR) and a second rotational position (SPR); the mobile element (9) is connected to the pedal (6) by means of the rotating element (8), so that: when it is in the advanced position (AP), the rotating element (8) is in the first rotational position (PPR); when it is in the retracted position (RP), the rotating element (8) is in the second rotational position (SPR);

[0024] In accordance with another aspect of the invention: the cursor (10) comprises a shaped portion (17); the shaped portion (17) is provided with a first sliding profile (31); the mobile element (9) is provided with a second sliding profile (32); the first sliding profile (31) and the second sliding profile (32) are shaped so that when the cursor (10) is in the interference position (PI) and the mobile element (9) is in the retracted position (RP) (see for example fig.3), then the subsequent movement of the mobile element (9) towards the advanced position (AP) can cause the second sliding profile (32) to contact the first sliding profile (31) and consequently move the cursor (10) from the interference position (PI) (see for example fig.10) thus allowing the mobile element (9) to reach the advanced position (AP) (see for example fig.9).

[0025] As will be seen below, this other aspect of the invention is necessary in the embodiments of figures 1-16, 27-32, 33-38.

[0026] The aforementioned movement of the mobile element (9) can be caused by lowering the pedal (6) into the lowered pedal position (PPA) (see in sequence figures 3, 10, 9), which causes the rotation of the rotating element (8) into the first rotational position (PPR).

[0027] Additionally, the cursor (10) may comprise a cursor member (18), and cursor elastic means (19) (for example a spring, see fig.27) which are interposed between the cursor member (18) and the shaped portion (17), such that when the locking element (7) is in the operative position (POP) (figures 29, 35) the shaped portion (17) can move elastically (figures 31, 37) to allow the mobile element (9) to reach the advanced position (AP) (figures 30, 36).

[0028] The cursor member (18) may have the shape of a stem (18) (see for example fig.27).

[0029] In accordance with another aspect of the invention, the heel piece (1) comprises movement means (41, 42) of the cursor (10) (figs.17-21, 22-26, 33-38), to move the cursor (10) into the non-interference position (PNI) when the locking element (7) returns into the inoperative position (PIN).

[0030] Preferably, the locking element (7) is identified as a locking lever (7) which is rotatably borne by the tower (3), see for example fig.10.

[0031] In this way, the locking lever (7) can be easily actuated with a ski pole, without the skier needing to bend down. Moreover, a locking lever (7) is very intuitive to recognize and use for a skier.

[0032] Alternatively, the locking element (7) may be a translating element suitably shaped to control the cursor (10), as shown in fig.12, where the cursor (10) is in the interference position (PI) and the translation can occur parallel to the axis of the ski when the base (2) is fixed to the ski.

[0033] Even more preferably, the locking lever (7) is identified as a heel riser (7) which, in the operative position (POP), is arranged to restingly receive the heel (13) of a ski boot (see fig.13, for example). The locking lever (7) may also be arranged so that in the operative position (POP) it prevents the ski boot from engaging with the hooking pins (100) of the heel piece (1), so that with a single rotation movement it is possible to switch from the uphill walking configuration to the downhill skiing configuration.

[0034] Preferably, the movement means (41, 42) comprise first elastic means (41) (figures 22-26, 33-38). The first elastic means (41) may be interposed between the tower (3) and the cursor (10).

[0035] Alternatively, the movement means (41, 42) of the cursor (10) may comprise at least one connecting element (42) which connects the locking element (7) with the cursor (10), see figures 17-21.

[0036] If the locking element (7) is a locking lever (7) and the cursor (10) comprises a stem (18), then the at least one connecting element (42) connects the locking lever (7) with an end of the stem (18), so that the rotation of the locking lever (7) into the inoperative position (PIN) causes the movement of the cursor (10) into the non-interference position (PNI).

[0037] In accordance with yet another aspect of the invention, the rotating element (8) is identified as a crank (8) and the mobile element (9) is identified as a connecting rod (9), as illustrated in the figures. In such case, the connecting rod (9) is rotatably coupled to the crank (8) and can perform a translational or roto-translational movement between the retracted position (RP) and the advanced position (AP). The connecting rod (9) may have an elongated shape, as illustrated in the figures.

[0038] Alternatively (solution not illustrated), the rotating element (8) may be provided with an arcuate toothed portion and the mobile element (9) may be provided with a rack engagable with the arcuate toothed portion.

[0039] In accordance with a further aspect of the invention, the heel piece (1) comprises an end stop to abut the cursor (10) when the cursor (10) reaches the interference position (PI), see for example figures 15, 16.

[0040] The end stop may be identified as a pin (16) fixed to the tower (3) and the cursor (10) may comprise a second seat (22) to receive the pin (16), said second seat (22) being dimensioned to allow relative movement of the cursor (10) with respect to the pin (16). In the embodiments illustrated in the figures, the second seat (22) is a through hole formed in the cursor (10), for example at or near the shaped portion (17) (if provided), and the pin (16) may be arranged to pass through the second seat (22) (see for example figures 15, 16).

[0041] The heel piece (1) may comprise an additional heel riser (14), which in the figures is always in an inoperative position.

[0042] The cursor may comprise (figures 27-38) a terminal part (24) which: comprises the shaped portion (17), is provided with the second seat (22), forms a chamber (20) to receive the cursor elastic means (19), and is provided with a through hole, on the opposite side with respect to the shaped portion (17), to allow the passage of the stem (18); the end of the stem (18) may be fixed to a nut (23), and the nut (23) may be arranged inside the chamber (20), in contact with the cursor elastic means (19). See in particular figures 32, 38.

[0043] Preferably, the cursor (10) is movable only in a translational manner along a straight direction. Preferably, the straight direction is perpendicular to the planar surface defined by the ski, when the base (2) is fixed to the ski.

[0044] Preferably, the heel piece (1) comprises at least one hooking pin (100) (see fig.1, for example) to hook to the heel (13) of a ski boot; the at least one hooking pin (100) is borne by the tower (3); the tower (3) is rigidly fixed to the base (2), so as to be integral with the base (2). A heel piece (1) of this type is more compact, lighter, and more robust than a heel piece of the prior art which, instead, provides that a portion of the tower, including the hooking pins, is rotatable about an axis perpendicular to the ski plane.

[0045] A description of the five embodiments illustrated in the figures follows.

[0046] Reference is made below to a first embodiment illustrated in figures 1-16.

[0047] With reference to the initial configuration of figures 1-3: the cursor (10) is in the interference position (PI) and abuts the end stop; the pedal (6) is in the raised pedal position (PPS), the crank (8) is in the second rotational position (SPR), and the connecting rod (9) is in the retracted position (RP); the heel riser (7) is in the inoperative position (PIN) and does not contact the stem (18) of the cursor (10).

[0048] The cursor (10) is in the interference position (PI) due to its own weight.

[0049] To reach a downhill skiing configuration from the initial configuration, the heel (13) of a ski boot can be coupled to the tower (3) and simultaneously press on the pedal (6), see figures 4-6. The pedal (6) thus moves into the lowered pedal position (PPA), which causes the rotation of the crank (8) into the first rotational position (PPR), and the movement of the connecting rod (9) into the advanced position (AP); the movement of the connecting rod (9) from the retracted position (RP) to the advanced position (AP) causes the temporary lifting of the cursor (10) (view not illustrated), which subsequently returns into the interference position (PI) (as visible in fig.6). The user can then ski downhill.

[0050] To reach an uphill preparation configuration from the initial configuration, the user must press the pedal (6) to bring it into the lowered pedal position (PPA), figures 7-9. The pedal (6) thus moves into the lowered pedal position (PPA), which causes the rotation of the crank (8) into the first rotational position (PPR), and the movement of the connecting rod (9) into the advanced position (AP); the movement of the connecting rod (9) from the retracted position (RP) to the advanced position (AP) causes the temporary lifting of the cursor (10) (view not illustrated), which subsequently returns into the interference position (PI) (as visible in fig.9).

[0051] Figure 10 shows a moment prior to the instant when the pedal (6) reaches the lowered pedal position (PPA), where the contact between the first sliding profile (31) and the second sliding profile (32) can be noted, such that it causes the temporary lifting of the cursor (10) (thus reaching for a moment a non-interference position (PNI), not visible), which at a later moment (fig.9) returns into the interference position (PI).

[0052] Figure 11 shows a possible shape of the metal filament (15) and of the crank (8), which resembles a "barrel" in which opposing notches are formed to house corresponding portions of the metal filament (15).

[0053] To reach a walking configuration (figures 13-16) from the uphill preparation configuration, the user must rotate the heel riser (7) into the operative position (POP), thus stably locking the cursor (10) in the interference position (PI): in fact, the heel riser (7) contacts the end of the stem (18) of the cursor (10), see fig.15.

[0054] Reference is made below to a second embodiment illustrated in figures 17-21.

[0055] This second embodiment differs from the first embodiment in that the movement means (41, 42) are provided, comprising at least one connecting element (42).

[0056] The at least one connecting element (42) is designed so that (figures 17-19), when the heel riser (7) is in the inoperative position (PIN), the cursor (10) is in the non-interference position (PNI). In this case, it would not be necessary to provide the first sliding profile (31) and the second sliding profile (32), because when the pedal (6) is lowered to reach the lowered pedal position (PPA), the connecting rod (9) can reach the advanced position (AP) without encountering the cursor (10).

[0057] Reference is made below to a third embodiment illustrated in figures 22-26.

[0058] The third embodiment differs from the second embodiment in that the movement means (41, 42) instead comprise the first elastic means (41). Also in this case, it would not be necessary to provide the first sliding profile (31) and the second sliding profile (32), because when the pedal (6) is lowered to reach the lowered pedal position (PPA), the connecting rod (9) can reach the advanced position (AP) without encountering the cursor (10).

[0059] Reference is made below to a fourth embodiment illustrated in figures 27-32.

[0060] The fourth embodiment differs from the first embodiment in that the cursor elastic means (19) are provided.

[0061] In this case, to reach the uphill preparation configuration from the initial configuration, it is necessary to rotate the heel riser (7) into the operative position (POP), fig.29: in this way, the position of the cursor member (18) is locked, but the shaped portion (17) of the cursor (10) can still move thanks to the ability of the cursor elastic means (19) to compress and expand.

[0062] To subsequently reach the walking configuration, the user must press the pedal (6) to bring it into the lowered pedal position (PPA), figure 30. The pedal (6) thus moves into the lowered pedal position (PPA), which causes the rotation of the crank (8) into the first rotational position (PPR), and the movement of the connecting rod (9) into the advanced position (AP); the movement of the connecting rod (9) from the retracted position (RP) to the advanced position (AP) causes the temporary lifting of the shaped portion (17) of the cursor (10) (illustrated in fig.31), thanks to the compression of the cursor elastic means (19), which subsequently return into the interference position (PI) (as visible in fig.30), corresponding to the expansion of the cursor elastic means (19).

[0063] In this case, the non-interference position (PNI) of the cursor (10) is represented by the temporary position assumed by the corresponding shaped portion (17) when it is lifted to allow the passage of the connecting rod (9) towards the advanced position (AP) (compression of the cursor elastic means (19)), while the interference position (PI) of the cursor (10) is obtained when the cursor elastic means (19) expand again.

[0064] Reference is made below to a fifth embodiment illustrated in figures 33-38.

[0065] The fifth embodiment differs from the fourth embodiment in that the first elastic means (41) are provided. In this case, the non-interference position (PNI) of the cursor (10) is clearly visible in fig.33, where the heel riser (7) is in the inoperative position (PIN).

[0066] Reference is made below to a sixth embodiment illustrated in figures 39-43.

[0067] The sixth embodiment differs from the first embodiment in that the rotating element (8) has been omitted.

[0068] It is understood that the above has been described by way of example and not of limitation, and therefore possible constructional variants are to be considered as falling within the protective scope of the present technical solution, as claimed below.

Claims

1. Heel piece (1) for ski binding wherein: it comprises a base (2) fixable to a ski; it comprises a tower (3) which is connected to the base (2) and rises from the base (2); it comprises a ski brake (4) which is borne by the base (2) and comprises: a first braking element (11) which is movable to assume a first active braking position (PPFA) to brake the ski and a first inactive braking position (PPFD); attraction or repulsion means (5) acting on the first braking element (11) to exert a force tending to bring the first braking element (11) to the first active braking position (PPFA); it comprises a pedal (6) which: is borne by the base (2); can assume a lowered pedal position (PPA), that is where the pedal (6) is closer to the base (2), and a raised pedal position (PPS), that is where the pedal (6) is further from the base (2); is connected to the first braking element (11) so that: when it is in the lowered pedal position (PPA), the first braking element (11) is in the first inactive braking position (PPFD); when it is in the raised pedal position (PPS), the first braking element (11) is in the first active braking position (PPFA); it comprises a locking element (7) which is borne by the tower (3) and is movable to assume an operative position (POP) and an inoperative position (PIN); characterized by the fact that: it comprises a mobile element (9) which is connected to the pedal (6) to assume: an advanced position (AP), that is where the mobile element (9) is closer to the tower (3) when the pedal (6) is in the lowered pedal position (PPA); and a retracted position (RP), that is where the mobile element (9) is further from the tower (3) when the pedal (6) is in the raised pedal position (PPS); it comprises a cursor (10) which: is borne by the tower (3); is movable between an interference position (PI) and a non-interference position (PNI); is arranged so that when it is in the interference position (PI) and when the mobile element (9) is in the advanced position (AP), the cursor (10) interferes with the mobile element (9) thus holding the mobile element (9) in the advanced position (AP) and consequently holding the first braking element (11) in the first inactive braking position (PPFD) and the pedal (6) in the lowered pedal position (PPA); is controllable by the locking element (7) to reach or maintain the interference position (PI) when the locking element (7) is brought into the operative position (POP).

2. Heel piece (1) according to the previous claim wherein: it comprises a rotating element (8) which is rotatably borne by the base (2) and which can assume a first rotational position (PPR) and a second rotational position (SPR); the mobile element (9) is connected to the pedal (6) via the rotating element (8) so that: when it is in the advanced position (AP), the rotating element (8) is in the first rotational position (PPR); when it is in the retracted position (RP), the rotating element (8) is in the second rotational position (SPR).

3. Heel piece (1) according to the previous claim wherein: the cursor (10) comprises a shaped portion (17); the shaped portion (17) is provided with a first sliding profile (31); the mobile element (9) is provided with a second sliding profile (32); the first sliding profile (31) and the second sliding profile (32) are shaped so that when the cursor (10) is in the interference position (PI) and the mobile element (9) is in the retracted position (RP), the subsequent movement of the mobile element (9) towards the advanced position (AP) can cause the second sliding profile (32) to contact the first sliding profile (31) and consequently move the cursor (10) from the interference position (PI) thus allowing the mobile element (9) to reach the advanced position (AP).

4. Heel piece (1) according to the previous claim wherein: the cursor (10) comprises a cursor member (18) and elastic cursor means (19) which are interposed between the cursor member (18) and the shaped portion (17) so that when the locking element (7) is in the operative position (POP), the shaped portion (17) can move elastically to allow the mobile element (9) to reach the advanced position (AP).

5. Heel piece (1) according to any of the preceding claims wherein it comprises movement means (41, 42) of the cursor (10) to move the cursor (10) to the non-interference position (PNI) when the locking element (7) returns to the inoperative position (PIN).

6. Heel piece (1) according to the previous claim wherein the movement means (41, 42) comprise first elastic means (41).

7. Heel piece (1) according to any of the preceding claims wherein the rotating element (8) is identified as a crank (8) and the mobile element (9) is identified as a connecting rod (9).

8. Heel piece (1) according to any of the preceding claims wherein the locking element (7) is identified as a locking lever (7) which is rotatably borne by the tower (3).

9. Heel piece (1) according to the previous claim wherein the locking lever (7) is identified as a heel riser (7) which in the operative position (POP) is arranged to restingly receive the heel (13) of a ski boot.

10. Heel piece (1) according to any of the preceding claims wherein it comprises an end stop to abut the cursor (10) when the cursor (10) reaches the interference position (PI).

11. Heel piece (1) according to any of the preceding claims, wherein the cursor (10) is movable only in a translational manner along a straight direction.

12. Heel piece (1) according to any of the preceding claims, wherein: it comprises at least one hooking pin (100) to hook to the heel (13) of a ski boot; the at least one hooking pin (100) is borne by the tower (3); the tower (3) is rigidly fixed to the base (2), so as to be integral with the base (2).

13. Heel piece (1) according to any of the preceding claims, wherein: the tower (3) is provided with a sliding channel (21) to slidably receive the cursor (10); the sliding channel (21) opens at the top of the tower (3); the locking element (7) is arranged at the top of the tower (3).

Images