EP4397203B1 - Verriegelungsvorrichtung für einen sportschuh - Google Patents

Verriegelungsvorrichtung für einen sportschuh

Info

Publication number
EP4397203B1
EP4397203B1 EP23425003.3A EP23425003A EP4397203B1 EP 4397203 B1 EP4397203 B1 EP 4397203B1 EP 23425003 A EP23425003 A EP 23425003A EP 4397203 B1 EP4397203 B1 EP 4397203B1
Authority
EP
European Patent Office
Prior art keywords
locking
axis
housing
locking element
locking device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP23425003.3A
Other languages
English (en)
French (fr)
Other versions
EP4397203A1 (de
Inventor
Paolo Cima
Massimo Poloni
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rossignol Lange SRL
Original Assignee
Rossignol Lange SRL
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Rossignol Lange SRL filed Critical Rossignol Lange SRL
Priority to EP23425003.3A priority Critical patent/EP4397203B1/de
Priority to EP23220314.1A priority patent/EP4397202A1/de
Priority to US18/403,181 priority patent/US20240215686A1/en
Publication of EP4397203A1 publication Critical patent/EP4397203A1/de
Application granted granted Critical
Publication of EP4397203B1 publication Critical patent/EP4397203B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B5/00—Footwear for sporting purposes
    • A43B5/04—Ski or like boots
    • A43B5/0427—Ski or like boots characterised by type or construction details
    • A43B5/047—Ski or like boots characterised by type or construction details provided with means to improve walking with the skiboot
    • A43B5/0474—Ski or like boots characterised by type or construction details provided with means to improve walking with the skiboot having a walk/ski position
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B5/00—Footwear for sporting purposes
    • A43B5/04—Ski or like boots
    • A43B5/0427—Ski or like boots characterised by type or construction details
    • A43B5/0452—Adjustment of the forward inclination of the boot leg
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B5/00—Footwear for sporting purposes
    • A43B5/04—Ski or like boots
    • A43B5/0427—Ski or like boots characterised by type or construction details
    • A43B5/0452—Adjustment of the forward inclination of the boot leg
    • A43B5/0454—Adjustment of the forward inclination of the boot leg including flex control; Dampening means
    • A43B5/0456—Adjustment of the forward inclination of the boot leg including flex control; Dampening means with the actuator being disposed at the rear side of the boot

Definitions

  • the invention relates to a locking device for blocking a rotational joint between a shell bottom and a collar of a sports shoe, in particular a ski boot.
  • the invention also relates to a sports shoe, in particular a ski boot, comprising such a locking device.
  • For skiing we know sports boots comprising a lower shell and a cuff that rotates around the lower shell.
  • the lower shell envelops the foot below the ankle while the cuff envelops the lower leg above the ankle.
  • the articulation between the lower shell and the cuff allows easy insertion of the foot into the boot, as well as natural walking since the ankle joint is not blocked.
  • the articulation between the lower shell and the cuff must be blocked in order to effectively control the skis.
  • locking devices also known as "ski-walk”
  • These devices include a lever that can be operated by hand and allows the shoe to be chosen between two configurations.
  • the first configuration called “ski”
  • the second configuration called “walk”
  • walks releases the articulation between the cuff and the bottom of the shell.
  • EP 2 057 912 A1 discloses a locking device according to the preamble of claim 1.
  • the aim of the invention is to provide a locking device which overcomes the above drawbacks and improves the locking devices known from the prior art.
  • the invention aims to provide locking devices which are simple to manufacture, reliable, robust, light, compact, and easy to handle.
  • Another objective of the invention is to provide a ski boot preventing the involuntary practice of alpine skiing with boots in "walking" configuration.
  • the invention relates to a locking device for blocking a rotational articulation between a shell bottom and a collar of a sports shoe, the locking device comprising a blocking element movable between a blocking position and an unlocking position, and a mating element capable of cooperating with the blocking element to block the rotational articulation when the blocking element is in the blocking position, the blocking element being spaced from the mating element to release said rotational articulation when the blocking element is in the unlocking position, the locking device further comprising a shaft secured to the blocking element, a housing comprising at least a first guide light, a carriage movable relative to the housing, the carriage comprising at least a second guide light, the shaft cooperating with the at least a first guide light and with the at least a second guide light so that a movement of the carriage relative to the housing causes a movement of the blocking element.
  • the locking element can be movable parallel to a first axis between its locking position and its unlocking position, the at least one first guide light being oriented parallel to the first axis, the carriage being movable relative to the housing parallel to a second axis, the at least one second guide light being oriented parallel to a third axis, the third axis forming a non-zero angle with the first axis, the third axis forming a non-zero angle with the second axis.
  • the locking element may include a lug
  • the mating element may include an opening including a shape complementary to a shape of the lug, the lug being positioned within the opening when the locking element is in the locking position, and the lug being positioned outside the opening when the locking element is in the unlocked position.
  • Said conjugate element may comprise a blade intended to be fixed to the bottom of the shell of the sports shoe according to a rotational connection around a fourth axis, the blade being able to slide relative to the housing when the locking element is in the unlocked position.
  • Said housing may be intended to be fixed to the collar of the sports shoe according to a rotational connection around a fifth axis.
  • the housing and the blade may include opposing metal surfaces
  • the locking device may include a sliding member interposed between the housing and the blade, the sliding member being configured to facilitate sliding of the blade relative to the housing.
  • the locking device may further comprise a cable, the cable comprising a first end attached to the carriage for exerting a tensile force on the carriage, the cable comprising a second end intended to be attached to an operating means.
  • Said second guide light can be oriented so that a movement of the carriage following a tensile force of said cable causes the movement of the locking element towards its unlocking position.
  • the locking device may include a biasing means configured to move the carriage, so as to cause the locking element to move toward its locking position.
  • the housing may comprise a means for guiding the locking element in translation parallel to a first axis, and/or the housing may comprise a means for guiding the carriage in translation parallel to a second axis.
  • the locking element may comprise a first cylindrical portion cooperating with a complementary shaped opening in the housing to guide the locking element in translation between its locking position and its unlocking position, and the locking element may comprise a second cylindrical portion capable of cooperating with a complementary shaped opening in the mating element to block the articulation in rotation when the locking element is in the locking position, a diameter of the first cylindrical portion being strictly greater than a diameter of the second cylindrical portion.
  • the invention also relates to a sports shoe comprising a shell bottom, a collar articulated in rotation relative to the shell bottom and a locking device as defined previously.
  • Said housing may be integral with the collar, and said mating element may be integral with the bottom of the shell.
  • the collar may include an outer wall covering a mechanism of the locking device.
  • the bottom of the shell may comprise a rear notch
  • the sports shoe further comprising a rear spoiler movable in rotation relative to the bottom of the shell around a transverse axis, the rear spoiler being movable between a first position where it closes the notch and a second position pivoted towards the rear of the shoe.
  • a locking device for blocking a rotational articulation between a shell bottom and a collar of a sports shoe
  • the locking device comprising a housing intended to be fixed to the collar, and a blade intended to be fixed to the shell bottom, the housing comprising a blocking element movable between a blocking position and an unlocking position, the blocking element cooperating with the blade to block the rotational articulation between the shell bottom and the collar when the blocking element is in the blocking position, the blade being able to slide in the housing when the blocking element is in the unlocking position, the housing being intended to be fixed to the collar according to a rotational connection around a fifth axis.
  • the locking member may include a lug
  • the blade may include an opening including a shape complementary to a shape of the lug, the lug being positioned within the opening when the locking member is in the locking position, and the lug being positioned outside the opening when the locking member is in the unlocking position.
  • the housing and the blade may include opposing metal surfaces
  • the locking device may include a sliding member interposed between the housing and the blade, the sliding member being configured to facilitate sliding of the blade relative to the housing.
  • a sports shoe comprising a shell bottom, a collar articulated in rotation relative to the shell bottom and a locking device as defined previously.
  • Said housing may be integral with the collar, and said blade may be integral with the bottom of the hull.
  • the collar may include an outer wall covering a mechanism of the locking device.
  • the bottom of the shell may comprise a rear notch
  • the sports shoe further comprising a rear spoiler movable in rotation relative to the bottom of the shell around a transverse axis, the rear spoiler being movable between a first position where it closes the notch and a second position pivoted towards the rear of the shoe.
  • ski boot 1 schematically illustrates a ski boot 1 according to one embodiment of the invention.
  • the ski boot is intended to envelop the foot and lower leg of a user and to be attached, in a removably manner, to a sliding board, in particular a ski, for practicing a sliding sport on snow.
  • the ski boot 1 can be adapted to the practice of alpine skiing and/or ski touring.
  • the X axis denotes the longitudinal axis of the ski boot.
  • the X axis is oriented from the heel area of a user of the ski boot 1 to the toe area of the user, i.e., in the direction in which a ski attached to the ski boot extends forward.
  • the Y axis refers to the transverse axis of the ski boot.
  • the Y axis is oriented from left to right, with left and right being defined according to the user's point of view.
  • the Y axis is thus an axis substantially parallel to the user's ankle joint axis.
  • the Z axis refers to the axis perpendicular to the X axis and the Y axis.
  • the ski boot is considered to rest via its sole on horizontal ground.
  • the Z axis is a vertical axis, oriented from bottom to top.
  • the X, Y and Z axes form an orthogonal reference frame.
  • the ski boot 1 comprises a lower shell 2 intended to envelop the user's foot, a collar 3 intended to envelop the user's lower leg, and a rotational articulation means 4 between the lower shell 2 and the collar 3.
  • the rotational articulation means 4 is configured to allow rotation of the collar 3 relative to the lower shell 2 around an axis of rotation Y1 parallel to the axis Y.
  • the axis of rotation Y1 is substantially aligned with an axis of rotation of the user's ankle.
  • the axis of rotation Y1 passes in particular through the two internal and external malleoli of the user.
  • the ski boot 1 comprises a set of tightening means 5 for tightening the ski boot around the foot and lower leg of the user.
  • Each tightening means 5 comprises an operating device 6 fixed to a first flap of the bottom of the shell or respectively of the collar, and a hooking means 7 fixed to a second flap of the bottom of the shell or respectively of the collar.
  • Each operating device 6 comprises a tightening loop 8 cooperating with the attachment means 7 to bring the first flap closer to the second flap and thus tighten the bottom of the shell around the foot, or respectively to tighten the collar around the bottom of the leg.
  • the attachment means 7 may, for example, comprise a rack.
  • the ski boot 1 comprises two tightening means 5 arranged on the bottom of the shell and two tightening means 5 arranged on the collar.
  • the number of tightening means could be different.
  • the bottom of the shell 2 and the collar 3 may be made of injected plastic material.
  • the bottom of the shell 2 further comprises a front sidewall 9A and a rear sidewall 9B intended to cooperate with a fixing device for fixing the ski boot 1 to a sliding board.
  • the ski boot 1 further comprises a locking device 10 configured to block the rotational articulation between the bottom of the shell 2 and the collar 3.
  • the locking device 10 allows the boot to be used either in a so-called "walking" configuration in which the rotational articulation between the bottom of the shell 2 and the collar 3 is free, or in a so-called “skiing” configuration in which the rotational articulation between the bottom of the shell 2 and the collar 3 is blocked.
  • walking configuration the ski boot follows the natural articulation of the foot and the leg, which facilitates walking.
  • the blocking of the articulation allows optimal transmission of forces from the foot and the lower leg to the ski boot, which allows precise guidance of the gliding board attached to the ski boot.
  • the locking device 10 is arranged at the rear of the ski boot. It is represented schematically by a rectangle on the figure 1 .
  • the locking device 10 is advantageously connected by a cable 11 to a device operating device 6 of the ski boot, in particular to an operating device 6 fixed to the collar 3.
  • the operating device 6 to which the cable 11 is connected is positioned furthest upwards among the different operating devices 6.
  • the cable 11 could be connected to any other operating device arranged on the boot.
  • the operating device connected to the cable 11 could be independent of a tightening means 5.
  • FIG 2 illustrates the bottom of the shell 2 and the collar 3 of the ski boot.
  • the locking device 10 is housed at least partially in a protrusion formed at the rear of the collar 3.
  • the locking device 10 is in particular covered at least partially by an external wall 15 of the collar.
  • the locking device 10 could also be trapped between two layers of the rear wall of the collar, thus forming a housing for receiving the locking device. It is thus protected from impacts and projections of snow or ice.
  • the locking device 10 comprises a mechanism 20 secured to the collar and a mating element, or in other words a complementary element, in the form of a blade 12, secured to the bottom of the shell.
  • the blade 12 is fixed to the bottom of the shell 2 at its lower end and projects upwards.
  • the blade 12 may be a rectangular-shaped plate whose upper end is inserted into the mechanism 20.
  • the blade 12 may be of rectilinear shape.
  • the blade 12 could have a curved shape, in order to ensure its good integration with the rear wall of the shoe, as well as better mechanical resistance, in particular better bending resistance.
  • the mechanism 20 is covered by the external wall 15 of the collar.
  • Said mechanism 20 comprises a housing 21 provided with a lower opening inside which the blade 12 is engaged.
  • the blade 12 is guided in translation inside the housing 21 parallel to the axis in which the blade extends.
  • the blade 12 is free to slide inside the housing.
  • the blade 12 is therefore movable in translation relative to the housing 21.
  • the locking device 10 is in the ski configuration, the blade 12, itself linked to the bottom of the shell, is blocked inside the housing, itself linked to the collar. The collar is thus prevented from pivoting relative to the bottom of the shell around the axis of rotation Y1.
  • the Figures 4 and 5 respectively illustrate the locking device 10 in the walking configuration and in the skiing configuration.
  • the locking device comprises a locking element 22 movable parallel to a first axis X1 between a locking position and an unlocking position.
  • the locking position of the locking element 22 corresponds to the skiing configuration of the locking device 10 and is illustrated in Figure 5 .
  • the blade 12 then cooperates with the locking element 22 to lock the rotational articulation between the collar and the bottom of the hull.
  • the unlocking position of the locking element 22 corresponds to the operating configuration of the locking device 10 and is illustrated in figure 4
  • the locking element 22 is then moved away from the blade 12 to release the rotational articulation between the collar and the bottom of the hull.
  • the first axis X1 may be substantially parallel to the longitudinal axis X for a given orientation of the collar relative to the bottom of the shell.
  • the first axis X1 may, for example, form an angle of less than or equal to 30° with the longitudinal axis X.
  • the locking element 22 comprises a lug
  • the blade 12 comprises an opening 14 comprising a shape complementary to a shape of the lug.
  • the lug is positioned inside of the opening 14 when the locking element is in the locking position, and the lug is positioned outside the opening when the locking element is in the unlocked position.
  • the locking element 22 comprises a cylindrical shape whose axis X1 is the axis of revolution.
  • the opening 14 comprises a circular shape whose diameter is slightly greater than the diameter of the cylindrical shape of the locking element.
  • the locking element 22 and the blade 12 are made of metal, so as to withstand the significant forces that a user can exert when practicing downhill skiing.
  • the locking element 22 and the opening 14 could be envisaged, for example a triangular, square, rectangular, polygonal, or ovoid shape.
  • the locking element 22 and the mating element cooperating with the locking element could be different.
  • These two elements could for example comprise reliefs, such as for example rack surfaces, intended to come into contact with each other when the locking element is in the locking position.
  • the two elements can each comprise a stop surface configured to prevent the mating element from sliding in the mechanism 20 when the locking element is in the locking position.
  • the housing 21 comprises a guide means 25 capable of guiding the locking element 22 in translation parallel to the first axis X1.
  • This guide means 25 is in particular formed by a sleeve whose shape corresponds to the profiled shape of the locking element 22.
  • the sleeve formed in the housing also comprises a cylindrical shape. This guide means makes it possible to properly control the translational movement of the locking element, and thus to limit any risk of jamming between the locking element and the blade 12.
  • the locking element 22 comprises a first cylindrical portion cooperating with the sleeve of complementary shape in the housing 21 to guide the locking element in translation parallel to the first axis X1, and a second cylindrical portion capable of cooperating with the opening 14 of complementary shape in the blade 12.
  • a diameter of the first cylindrical portion is strictly greater than a diameter of the second cylindrical portion. The shoulder formed at the interface between the first cylindrical portion and the second cylindrical portion can thus come into abutment against the edge of the opening 14, which makes it possible to properly immobilize the blade 12 when the locking device is in the ski configuration.
  • the housing 21 may comprise a generally parallelepiped shape.
  • the housing 21 may comprise a first part 21A and a second part 21B forming a cover for the first part 21A.
  • the guide means 25 is formed in the second part 21B of the housing.
  • the first part 21A and the second part 21B are rigidly fixed to each other, in particular by means of two axes 23 and 24 cooperating with holes arranged respectively at a lower edge and an upper edge of each of the two parts 21A and 21B of the housing 21.
  • the housing 21 may be made of a plastic and/or metallic material.
  • the first part 21A may be made of metal and/or the second part 21B may be made of plastic.
  • the mechanism 20 makes it possible to move the locking element 22 between its locking position and its unlocking position in a particularly advantageous manner.
  • This mechanism 20 will now be described in more detail with reference to figures 7, 8 .
  • the mechanism 20 comprises a carriage 26 movable relative to the housing 21 parallel to a second axis Z2.
  • the second axis Z2 may be substantially parallel to the vertical axis Z for a given orientation of the collar relative to the bottom of the shell.
  • the second axis Z2 forms a non-zero angle with the axis X1, preferably an angle substantially equal to 90°.
  • the first part 21A of the housing 21 comprises two lateral flanks 28 extending parallel to each other and connected together by the two axes 23 and 24.
  • the carriage 26 generally comprises the shape of a U.
  • the carriage comprises in particular a base 29 and two lateral flanks 30 connected to the base 28.
  • the lateral flanks 30 of the carriage extend parallel to each other along internal faces of the lateral flanks 28 of the housing.
  • the lateral flanks 28 of the housing cooperate with the lateral flanks 30 of the carriage so as to form a means for guiding the carriage in translation relative to the housing.
  • the carriage is connected to the cable 11 in particular via its base 29.
  • a first end of the cable 11 is inserted through a hole provided in the base 29 of the carriage 26. This first end is provided with a retaining means 35 intended to bear on the edge of said hole.
  • a pull of the cable 11 thus causes a sliding, or in other words a translation, of the carriage 26 inside the housing 21 parallel to the second axis Z2.
  • the two lateral flanks 28 of the housing 21 each comprise a first guide light 31 oriented parallel to the first axis X1.
  • the two lateral flanks 30 of the carriage 26 each comprise a second guide light 32 oriented parallel to a third axis A3.
  • the third axis A3 forms an angle B other than 90° with the first axis X1.
  • the guide lights 31 and 32 are through openings of oblong shape arranged respectively in the flanks 28 and 30 respectively of the housing 21 and the carriage 26.
  • the orientation of a guide light 31, 32 designates the orientation in which the oblong shape extends. In other words, the orientation of a guide light 31, 32 is parallel to the orientation of the largest dimension of the guide light.
  • the mechanism 20 also comprises a shaft 33 secured to the locking element 22.
  • the shaft 33 extends generally parallel to the transverse axis Y and passes through the locking element 22.
  • the shaft 33 can be rigidly fixed to the locking element 22 or be inserted into a transverse opening provided in the locking element. According to an alternative embodiment, the shaft 33 and the locking element 22 could form a single piece.
  • the shaft 33 is arranged through the guide slots 31 and 32.
  • the guide slots 31 and 32 have a width slightly greater than the diameter of the shaft 33, so that the shaft 33 can slide freely within these guide slots.
  • the shaft 33 can comprise stop means at each of its ends to ensure that it is held securely in position through the guide slots 31 and 32.
  • the second guide lights 32 are positioned opposite a rear end of the first guide lights 31.
  • the shaft 33 which extends through the first guide lights 31 and the second guide lights 32 is therefore in a more rearward position.
  • the locking element 22, integral with the shaft 33, is then in the unlocked position.
  • the second guide lights 32 are positioned opposite a front end of the first guide lights 31.
  • the shaft 33 is therefore in a more forward position.
  • the locking element 22 is then in the locking position.
  • the locking element 22 is thus able to engage with the opening 14 of the blade 12.
  • the edges of the guide lights 32 which extend parallel to the third axis A3, exert a pressure on the shaft 33, which forces the displacement of the shaft 33.
  • the shaft 33 also being guided by the guide lights 31, the displacement of the shaft 33 is necessarily parallel to the first axis X1. Consequently, the displacement of the carriage 26 along the second axis Z2 automatically causes the displacement of the locking element 22 along the first axis X1. It is therefore understood that the shaft 33 cooperates with the guide lights 28 and 30 so that a displacement of the carriage 26 relative to the housing parallel to the second axis Z2 causes a displacement of the locking element parallel to the first axis X1.
  • the mechanism 20 advantageously makes it possible to transform the substantially vertical movement of the carriage 26 into a substantially longitudinal movement of the locking element.
  • the mechanism 20 carrying out this transformation is both particularly compact and reliable.
  • the mechanism 20 can thus be controlled by means of a cable 11 extending parallel to a wall of the ski boot. According to the embodiment shown, the cable 11 extends upwards from the mechanism 20 but alternatively, the locking device could be adapted so that the cable 11 extends towards the right or left sides, or down, or any direction perpendicular to the first axis X1.
  • This angle B is necessarily different from 90° because otherwise the movement of the carriage would not generate any movement of the shaft 33.
  • the third axis A3 can form with the first axis X1 an angle B of between 10° and 85° inclusive, preferably between 40° and 75° inclusive, more preferably between 50° and 70°.
  • the mechanism 20 further comprises a return means 34 configured to move the carriage 26 in the direction opposite to the direction of movement controlled by the actuation of the cable 11.
  • the return means 34 may in particular be obtained by a compression spring comprising a first end bearing against the base 29 of the carriage and a second end bearing against a wall of the second part 21B of the housing.
  • the guide lights 32 of the carriage are oriented downwards and backwards, so that the low position of the carriage corresponds to the locking position of the locking element, and the high position of the carriage corresponds to the unlocking position of the locking element. Pulling on the carriage 26 by the cable 11 therefore causes the locking element to move towards its unlocking position. Conversely, in the absence of tension on the cable 11, the locking element is in its locking position.
  • the guide lights 32 could be oriented downward and forward so that the high position of the carriage corresponds to the locking position of the locking element, and the low position of the carriage corresponds to the unlocking position of the locking element.
  • the cable 11 comprises a second end fixed to a maneuvering device 6 articulated on the ski boot.
  • the user can easily control the configuration of the ski boot by manipulating the maneuvering device 6.
  • THE figures 11 and 12 illustrate an embodiment of an operating device 6 connected to the cable 11.
  • the operating device 6 comprises a first lever 41 secured to a tightening loop 8 and a second lever 42, distinct from the first lever 41, and secured to the cable 11.
  • the first lever 41 is movable between a first position, or closed position, and a second position, or open position. When the first lever 41 is in its first position, it is able to exert a force of traction on the tightening loop 8 thus making it possible to tighten the ski boot around the user's foot and/or lower leg. Conversely, when the first lever 41 is in its second position, the corresponding tightening means 5 is loosened, which makes it possible to separate the two flaps of the bottom of the shell or the collar, for example in order to insert or extract the user's foot from the ski boot.
  • the second lever 42 is movable between a first position and a second position.
  • the second lever 42 When the second lever 42 is in its first position, it does not exert any tensile force on the cable 11.
  • the locking element 22 is then in the locking position thanks to the effect of the return means 34.
  • the second lever 42 Conversely, when the second lever 42 is in its second position, the cable 11 is under tension.
  • the carriage 26 is then moved against the return means 34 and the locking element 22 is in the unlocking position.
  • the articulation of the collar on the bottom of the hull is released and the collar can pivot backwards or forwards.
  • the two levers 41 and 42 are both shown in their first position.
  • the first lever 41 and the second lever 42 are configured to bear on each other so that when the first lever 41 is in its first position, the second lever is automatically in its first position, and when the second lever 42 is in its second position, the first lever 41 is automatically in its second position.
  • first lever 41 and the second lever 42 are articulated around the same axis of rotation W1.
  • first lever 41 and 42 are in their first position, the first lever extends above the second lever 42.
  • a lower face of the first lever 41 bears against an upper face of the second lever 42.
  • the second end of the cable 11 comprises a retaining means 49, for example of cylindrical shape.
  • This retaining means 49 is mounted in a housing of complementary shape provided on the internal face of the second lever.
  • any system for retaining the end of the cable on the lever is conceivable.
  • the second end of the cable 11 is thus fixed to the second lever 42 according to a rotational connection parallel to the axis of rotation W1.
  • the cable 11 may be protected by a sheath and may pass through a hole provided in the collar.
  • a channel may be provided along an internal face of the collar to guide the cable.
  • the user can also use the ski boot 1 with the first lever 41 in the second position and the second lever 42 in the first position.
  • the boot is then loosened around the user's foot or lower leg but the rotational joint between the bottom of the shell and the cuff remains locked.
  • Such a configuration makes it possible to practice downhill skiing with less compression of the foot or lower leg. This improves user comfort while maintaining relatively precise guidance of the skis.
  • Such a configuration can also be particularly suitable for waiting situations that do not require walking with the ski boots, such as when a user is waiting in ski lifts.
  • the blade 12 is fixed to the bottom of the hull 2 according to a rotational connection around a fourth axis Y4 parallel to the transverse axis Y.
  • the bottom of the hull 2 comprises two protrusions, formed substantially in the heel area, and supporting an axis 43 extending along the rotation axis Y4.
  • the lower end of the blade 12 can be simply wrapped around the axis 43 to form said rotational connection.
  • the rotational connection of the blade 12 allows the blade to follow the movement of the collar as it pivots around the bottom of the hull about the rotational axis Y1.
  • the blade 12 could not be mobile in rotation around the axis of rotation Y4. It could then, for example, have a certain flexibility allowing the collar to pivot relative to the bottom of the hull around the axis of rotation Y1. The amplitude of rotation between the collar and the bottom of the hull could then be reduced.
  • the blade 12 could be replaced by an assembly comprising several parts articulated together.
  • the housing 21 is fixed to the collar 3 according to a rotational connection around a fifth axis Y5, parallel to the transverse axis Y.
  • the housing 21 is articulated in rotation around the axis 24.
  • the axis 24 can for example be a hollow axis and be crossed by a rod secured to the collar 3.
  • the housing could be articulated in rotation on the collar by any other axis, for example the axis 23.
  • the housing 21 is materialized by a first rectangle R1 and the blade 12 is materialized by a first dotted line L1.
  • a second rectangle R2 represents the position that the housing 21 would take if the collar pivoted rearwardly around the axis of rotation Y1, assuming that the housing 21 is rigidly fixed to the collar.
  • the references 23' and 24' indicate the position of the axes 23 and 24 respectively in this hypothetical position of the housing. In this position, it can be seen that the blade 12, represented by the dotted line L2, would no longer pass through the fourth axis Y4.
  • the blade 12 would necessarily have to flex to follow the movement of the housing and/or the amplitude of rotation of the collar relative to the bottom of the hull would be reduced.
  • the housing 21 can pivot forward when the collar is pivoted backward.
  • the housing can thus adopt the position represented by the third rectangle R3.
  • the blade 12 can extend rectilinearly inside the housing 21 from the fourth axis Y4, as represented by the dotted line L3.
  • the blade 12 is not bent and does not disturb the rotational articulation of the collar.
  • the first part 21A of the housing, the carriage 26 and the blade 12 may be metal components, in particular obtained by folding and cutting. of a metal sheet or plate.
  • the first part 21A of the housing and the blade 12 comprise facing surfaces capable of rubbing against each other when the collar pivots relative to the bottom of the shell.
  • the locking device comprises a sliding element 44 (visible on the figures 9 and 10 ) interposed between the housing 21 and the blade 12 configured to facilitate the sliding of the blade relative to the housing.
  • the sliding element 44 may be, for example, a plastic plate with non-stick properties, possibly filled with fibers, for example filled with PTFE.
  • the sliding element 44 may also be a non-stick coating applied to any material, in particular a non-stick coating applied directly to the bottom of the housing 21.
  • the sliding element 44 may extend between the two sides 28 of the first part 21A of the housing.
  • the sliding element may be an independent part of the housing, or alternatively, be in one piece with the housing.
  • the bottom of the shell 2 may comprise a rear notch 45.
  • the rear notch 45 is a substantially V- or U-shaped opening, formed in the upper and rear part of the bottom of the shell 2.
  • the ski boot 1 further comprises a rear tongue 46 or rear spoiler 46, movable in rotation relative to the bottom of the shell 2 around a transverse axis between a first position and a second position.
  • the rear spoiler 46 closes the notch when it is in its first position and it is pivoted rearward when it is in its second position.
  • the rear spoiler 46 comprises lateral fins 47 extending along a lower part of the periphery of the rear spoiler 46.
  • the lateral fins 47 are intended to bear on the edges of the rear notch 45 when the rear spoiler 46 is in its first position. A central body of the rear spoiler 46 then fills the notch, and the side fins 47 cover the rear surface of the bottom of the hull, on either side of the rear notch 45. When the rear spoiler 46 is in its second position, the bottom of the shell offers a wide opening towards the rear which further facilitates walking with the ski boot.
  • the rear spoiler 46 is preferably formed from a single material, in particular plastic.
  • the spoiler may be formed from several materials.
  • the first material forming the central body of the spoiler may be a rigid plastic material, in particular to ensure good strength and/or good hold of the lower leg at the rear of the ski boot, and the material forming the lateral fins 47 may be formed from a more flexible plastic material, in particular to ensure good sealing of the rear spoiler with the rest of the bottom of the shell.
  • the rear spoiler 46 is movable in rotation relative to the bottom of the hull 2 around a transverse axis corresponding to the fourth axis Y4.
  • a support 48 for example in the form of a metal part, is on the one hand rigidly fixed to the rear spoiler 46, and on the other hand is fixed to the axis 43 according to a rotational connection of axis Y4.
  • the blade 12 When the locking device is in the ski configuration, the blade 12 adopts a substantially vertical position which keeps the rear spoiler 46 pressing against the edge of the rear notch 45 of the bottom of the shell. The lower leg is thus well held by the rear spoiler and the user can more easily exert tibial support on the collar.
  • the blade 12 When the locking device 10 is in the walking configuration, the blade 12 can freely pivot around the axis Y4 and therefore no longer holds the rear spoiler 46. The rear spoiler 46 can be pushed backwards by the lower leg of the user, which makes walking easier.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)

Claims (15)

  1. Verriegelungsvorrichtung (10) zum Blockieren eines Drehgelenks zwischen einem Unterschalenteil (2) und einem Schaft (3) eines Sportschuhs (1), umfassend ein Sperrelement (22), das zwischen einer Sperrstellung und einer Entriegelungsstellung beweglich ist, und ein Gegenelement (12), das mit dem Sperrelement zusammenwirken kann, um das Drehgelenk zu blockieren, wenn sich das Sperrelement in der Sperrstellung befindet, dadurch gekennzeichnet, dass das Sperrelement vom Gegenelement entfernt ist, um das Drehgelenk freizugeben, wenn sich das Sperrelement in der Entriegelungsstellung befindet, wobei die Vorrichtung eine mit dem Sperrelement verbundene Welle (33), ein Gehäuse (21) mit mindestens einer ersten Führungsöffnung (31), einen relativ zum Gehäuse beweglichen Schlitten (26) umfasst, wobei der Schlitten mindestens eine zweite Führungsöffnung (32) aufweist, die Welle mit der mindestens einen ersten und der mindestens einen zweiten Führungsöffnung zusammenwirkt, sodass eine Bewegung des Schlittens relativ zum Gehäuse eine Bewegung des Sperrelements bewirkt.
  2. Verriegelungsvorrichtung (10) nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass das Sperrelement (22) parallel zu einer ersten Achse (X1) zwischen seiner Sperrstellung und seiner Entriegelungsstellung beweglich ist, wobei die mindestens eine erste Führungsöffnung (31) parallel zur ersten Achse ausgerichtet ist, der Schlitten (26) relativ zum Gehäuse parallel zu einer zweiten Achse (Z2) beweglich ist, die mindestens eine zweite Führungsöffnung (32) parallel zu einer dritten Achse (A3) ausgerichtet ist, wobei die dritte Achse mit der ersten Achse einen ungleich null großen Winkel bildet, und die dritte Achse mit der zweiten Achse ebenfalls einen ungleich null großen Winkel bildet.
  3. Verriegelungsvorrichtung (10) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Sperrelement (22) einen Zapfen umfasst, und dass das Gegenelement (12) eine Öffnung (14) mit einer zum Zapfen komplementären Form aufweist, wobei sich der Zapfen in der Öffnung befindet, wenn sich das Sperrelement in der Sperrstellung befindet, und der Zapfen sich außerhalb der Öffnung befindet, wenn sich das Sperrelement in der Entriegelungsstellung befindet.
  4. Verriegelungsvorrichtung (10) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Gegenelement ein Blech (12) umfasst, das zur Befestigung am Unterschalenteil (2) des Sportschuhs mittels eines Drehgelenks um eine vierte Achse (Y4) vorgesehen ist, wobei das Blech relativ zum Gehäuse verschiebbar ist, wenn sich das Sperrelement in der Entriegelungsstellung befindet.
  5. Verriegelungsvorrichtung (10) nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass das Gehäuse (21) zur Befestigung am Schaft (3) des Sportschuhs mittels eines Drehgelenks um eine fünfte Achse (Y5) vorgesehen ist.
  6. Verriegelungsvorrichtung (10) nach einem der Ansprüche 4 oder 5, dadurch gekennzeichnet, dass das Gehäuse (21) und das Blech (12) einander gegenüberliegende Metallflächen aufweisen, und dass die Verriegelungsvorrichtung ein dazwischenliegendes Gleitelement (44) umfasst, wobei das Gleitelement so konfiguriert ist, dass es das Gleiten des Blechs relativ zum Gehäuse erleichtert.
  7. Verriegelungsvorrichtung (10) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass sie außerdem ein Kabel (11) umfasst, wobei das Kabel ein erstes Ende aufweist, das am Schlitten (26) befestigt ist, um eine Zugkraft auf den Schlitten auszuüben, und ein zweites Ende aufweist, das mit einem Betätigungsorgan (6) verbunden werden soll.
  8. Verriegelungsvorrichtung (10) nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass die zweite Führungsöffnung (32) so ausgerichtet ist, dass eine durch die Zugkraft des Kabels (11) verursachte Bewegung des Schlittens (26) die Bewegung des Sperrelements (22) in Richtung seiner Entriegelungsstellung bewirkt.
  9. Verriegelungsvorrichtung (10) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass sie ein Rückstellelement (34) umfasst, das so konfiguriert ist, dass es den Schlitten (26) bewegt, um das Sperrelement (22) in Richtung seiner Sperrstellung zu bewegen.
  10. Verriegelungsvorrichtung (10) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Gehäuse (21) ein Führungselement (25) zur Translation des Sperrelements (22) parallel zur ersten Achse (X1) und/oder ein Führungselement zur Translation des Schlittens (26) parallel zur zweiten Achse (Z2) umfasst.
  11. Verriegelungsvorrichtung (10) nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass das Sperrelement (22) einen ersten zylindrischen Abschnitt aufweist, der mit einer komplementär geformten Öffnung im Gehäuse zusammenwirkt, um das Sperrelement in der Translation zwischen seiner Sperrstellung und seiner Entriegelungsstellung zu führen, und dass das Sperrelement einen zweiten zylindrischen Abschnitt umfasst, der mit einer komplementär geformten Öffnung (14) im Gegenelement (12) zusammenwirken kann, um das Drehgelenk zu blockieren, wenn sich das Sperrelement in der Sperrstellung befindet, wobei der Durchmesser des ersten zylindrischen Abschnitts größer ist als der Durchmesser des zweiten zylindrischen Abschnitts.
  12. Sportschuh (1), umfassend ein Unterschalenteil (2), einen relativ zum Unterschalenteil drehbar gelagerten Schaft (3) und eine Verriegelungsvorrichtung (10) nach einem der vorhergehenden Ansprüche.
  13. Sportschuh (1) nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass das Gehäuse (21) fest mit dem Schaft (3) verbunden ist und das Gegenelement (12) fest mit dem Unterschalenteil (2) verbunden ist.
  14. Sportschuh (1) nach Anspruch 12, dadurch gekennzeichnet, dass der Schaft (3) eine äußere Wand (15) umfasst, die einen Mechanismus (20) der Verriegelungsvorrichtung (10) abdeckt.
  15. Sportschuh (1) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Unterschalenteil eine hintere Aussparung (45) umfasst und der Sportschuh außerdem einen hinteren Spoiler (46) umfasst, der relativ zum Unterschalenteil um eine Querachse (Y4) drehbar ist, wobei der hintere Spoiler zwischen einer ersten Stellung, in der er die Aussparung abdeckt, und einer zweiten Stellung, in der er nach hinten geschwenkt ist, beweglich ist.
EP23425003.3A 2023-01-04 2023-01-04 Verriegelungsvorrichtung für einen sportschuh Active EP4397203B1 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP23425003.3A EP4397203B1 (de) 2023-01-04 2023-01-04 Verriegelungsvorrichtung für einen sportschuh
EP23220314.1A EP4397202A1 (de) 2023-01-04 2023-12-27 Verriegelungsvorrichtung für einen sportschuh
US18/403,181 US20240215686A1 (en) 2023-01-04 2024-01-03 Locking device for a sports shoe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP23425003.3A EP4397203B1 (de) 2023-01-04 2023-01-04 Verriegelungsvorrichtung für einen sportschuh

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EP4397203A1 EP4397203A1 (de) 2024-07-10
EP4397203B1 true EP4397203B1 (de) 2025-07-30

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Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4839973A (en) * 1987-04-09 1989-06-20 Lange International S.A. Ski boot
FR2652241B1 (fr) * 1989-09-28 1994-05-06 Salomon Sa Dispositif de reglage de palonnier d'appui du bas de jambe equipant une chaussure notamment de sport.
US8074380B2 (en) * 2007-11-06 2011-12-13 Black Diamond Equipment, Ltd. Modular boot sole system

Also Published As

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