EP0408855B1 - Mâchoire avant - Google Patents

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Publication number
EP0408855B1
EP0408855B1 EP90109414A EP90109414A EP0408855B1 EP 0408855 B1 EP0408855 B1 EP 0408855B1 EP 90109414 A EP90109414 A EP 90109414A EP 90109414 A EP90109414 A EP 90109414A EP 0408855 B1 EP0408855 B1 EP 0408855B1
Authority
EP
European Patent Office
Prior art keywords
housing
clamp assembly
front clamp
bearing member
assembly according
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.)
Expired - Lifetime
Application number
EP90109414A
Other languages
German (de)
English (en)
Other versions
EP0408855A3 (en
EP0408855A2 (fr
Inventor
Karl Stritzl
Andreas Janisch
Hubert Würthner
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.)
TMC Corp
Original Assignee
HTM Sport und Freizeitgerate GmbH
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
Priority claimed from AT0176289A external-priority patent/AT396066B/de
Priority claimed from AT0279089A external-priority patent/AT399822B/de
Application filed by HTM Sport und Freizeitgerate GmbH filed Critical HTM Sport und Freizeitgerate GmbH
Publication of EP0408855A2 publication Critical patent/EP0408855A2/fr
Publication of EP0408855A3 publication Critical patent/EP0408855A3/de
Application granted granted Critical
Publication of EP0408855B1 publication Critical patent/EP0408855B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C9/00—Ski bindings
    • A63C9/08—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings
    • A63C9/0805—Adjustment of the toe or heel holders; Indicators therefor
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C9/00—Ski bindings
    • A63C9/08—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C9/00—Ski bindings
    • A63C9/08—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings
    • A63C9/085—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with sole hold-downs, e.g. swingable
    • A63C9/08507—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with sole hold-downs, e.g. swingable with a plurality of mobile jaws
    • A63C9/08514—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with sole hold-downs, e.g. swingable with a plurality of mobile jaws pivoting about a transversal axis
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C9/00—Ski bindings
    • A63C9/08—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings
    • A63C9/085—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with sole hold-downs, e.g. swingable
    • A63C9/08507—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with sole hold-downs, e.g. swingable with a plurality of mobile jaws
    • A63C9/08521—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with sole hold-downs, e.g. swingable with a plurality of mobile jaws pivoting about a vertical axis, e.g. side release
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C9/00—Ski bindings
    • A63C9/08—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings
    • A63C9/085—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with sole hold-downs, e.g. swingable
    • A63C9/08557—Details of the release mechanism
    • A63C9/08564—Details of the release mechanism using cam or slide surface
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C9/00—Ski bindings
    • A63C9/08—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings
    • A63C9/085—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with sole hold-downs, e.g. swingable
    • A63C9/08592—Structure or making
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C9/00—Ski bindings
    • A63C9/001—Anti-friction devices
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C9/00—Ski bindings
    • A63C9/08—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings
    • A63C9/085—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with sole hold-downs, e.g. swingable
    • A63C9/08557—Details of the release mechanism
    • A63C9/08571—Details of the release mechanism using axis and lever

Definitions

  • the invention relates to a toe piece according to the preamble of claim 1.
  • a known front jaw is already described in AT-B-321 170. With this toe piece, both angle levers only enclose the shoe sole on the side. To hold the sole of the shoe from above, an additional sole hold-down is provided, which has to be adjusted by hand for height different shoe soles. As a result, such handling of the toe is time consuming.
  • the housing receiving the release spring has a rear side on which a sole holder with a three-point support, which is approximately circular in plan view, is supported in the driving position.
  • the sole holder is pressed against the rear of the housing by a pull rod loaded by the release spring.
  • This toe can be triggered in the event of a pure tumble as well as a backward fall and also in the event of a backward fall of the skier.
  • the release force required can be changed by adjusting the preload of the release spring and by shifting the upper support point of the sole holder on the rear of the housing.
  • This toe piece has the disadvantage that it can only be used on shoe soles with exact dimensions, because his sole holder can not be adapted to different dimensions of the thickness and the circumferential surface of the shoe sole.
  • the toe piece according to the first version of DE-A-30 20 346 has a ski-proof housing in which a release spring with an adjustable preload is accommodated.
  • This spring is penetrated by a pull rod which ends at its end facing the ski boot in a bearing eye in which a connecting piece is accommodated.
  • the latter is penetrated by a set screw.
  • the two ends of the set screw are mounted in a sole hold-down device, which - seen in plan view - consists of a central part running transversely to the toe piece and two legs attached to it at an angle. The middle part is pulled by the release spring against the projecting edge of the housing, whereby a three-point support is available.
  • a pin is vertically attached to the ski, on which a housing holding a sole hold-down device for a release spring is mounted.
  • a three-point support namely the housing on the pin.
  • the sole hold-down device can not only pivot in a plane parallel to the top of the ski, but it can also be raised when the skier falls backwards.
  • the sole hold-down is designed as a rigid body that cannot adapt to the shape of any shoe sole.
  • a type of anchor sits on the tension rod acted upon by a tension spring, which engages in bores in the shorter lever arms of the two pivot levers.
  • the toe piece allows differently shaped shoe soles to be attached to the ski. If the skier falls backwards, the ski boot is not released.
  • the invention has for its object to eliminate the disadvantages of all known designs and to create a toe that on the one hand automatically adapts to differently dimensioned shoe soles, and on the other hand a release of the ski boot of the skier both in a pure turning fall, as well as in a backward fall and also makes it possible in the event of a reverse turn.
  • the measure of claim 2 ensures that a slight pivoting of the two angle levers occurs in thicker shoe soles. This pivoting thus facilitates the entry of the skier with his ski boot.
  • the subject matter of claim 3 enables a good distribution of the contact pressure originating from the release spring to the upper and lower regions of the bearing part.
  • claim 6 ensures reliable guidance of the pull rod in the housing.
  • the bearing part is centered in a simple manner by the subject matter of claim 12.
  • claim 17 prevents the skier from being injured by the toe piece in the event of a fall and at the same time simplifies the design of the support area.
  • the distance of the support area from the lower contact surface can be varied within wide limits.
  • the ratio of this distance to the distance between the two other contact surfaces, which is protected in claim 19, has proven to be particularly advantageous.
  • FIG. 1 is a vertical longitudinal central section through a in the Front jaws in the driving position
  • FIG. 2 shows an associated top view
  • FIG. 3 shows an associated front view
  • 4 shows a vertical longitudinal central section through the front jaw in the first phase of a backward fall
  • FIG. 5 shows a detail of the front jaw in a vertical longitudinal central section when the skier falls backwards
  • FIG. 6 shows the same detail when there is also a turning fall.
  • 1a, 5a and 6a cross sections are shown which show the bearing part in the driving position, in the position in the event of a backward fall and in the position in the case of a backward fall.
  • FIG. 7 is a section along the line VII - VII in Fig. 1 and Fig. 8 is the same section for a front jaw, which triggers laterally due to a camber.
  • FIG. 9 is a simplified front view of the toe piece in the event of a backward fall, the angle levers being omitted for the sake of clarity, and
  • FIG. 10 is an analogous illustration of the toe piece in the case of a backward fall.
  • Fig. 11 shows the bearing part in the diagram. 12 shows a part of the housing and FIG. 13 shows an associated section along the line XIII-XIII in FIG. 12.
  • FIG. 14 is a modified second embodiment of a part of the housing in a vertical longitudinal central section similar to FIG. 1.
  • FIG. 15 FIG.
  • FIG. 16 is a vertical longitudinal central section through a third embodiment of a toe piece in the driving position and FIG. 16 is an associated top view.
  • FIG. 17 shows this toe piece in the driving position, with a ski shoe with the greatest possible sole thickness being used
  • FIG. 18 shows this toe piece with a ski shoe with a low sole when initiating a backward fall.
  • 19 and 20 of the front jaw is also in the vertical longitudinal central section during a backward fall of the Skier reproduced, wherein Fig. 19 illustrates the first and Fig. 20 illustrates the second phase.
  • Fig. 21 shows a detail of the front jaw in the diagram.
  • Fig. 22 is another detail on a larger scale in section along the line XXII - XXII in Fig.
  • FIG. 22a shows the same detail when a ski boot with the greatest possible sole thickness is used or at the beginning of a backward fall with a low shoe sole
  • FIG. 22b the same detail at the end of the first phase of a backward fall
  • FIG. 22c this detail during the second phase of the backward fall.
  • FIG. 23 shows the detail mentioned for a fourth embodiment of a fore-jaw that is at rest
  • FIG. 23b the same detail at the end of the first phase of a backward fall
  • FIG. 23c this detail at the beginning of the second phase of a backward fall.
  • FIG. 24 shows the detail mentioned for a fifth embodiment of a toe piece in the rest position, in FIG.
  • FIG. 24b shows the same detail at the end of the first phase of a backward fall and in FIG. 24c at the beginning of the second phase of a backward fall.
  • 25 shows the detail in question in a sixth embodiment of a toe piece in the rest position
  • FIG. 25b shows the same detail during the first phase of a backward fall
  • FIG. 25c during the second phase of a backward fall.
  • FIG. 26 shows a seventh embodiment of a toe piece in a partially broken away view in the direction of the pull rod.
  • the toe piece is designated 1 in its entirety. It has a housing 2 which is fastened to the top 3a of a ski 3 by means of screws 3b which are only indicated.
  • a Coil spring trained trigger spring 4 housed, the bias can be adjusted in a conventional manner by a threaded sleeve 5.
  • the release spring 4 is arranged between a spring plate 6 and a bearing bush 7 which is mounted in a vertical transverse wall 2a of the housing 2.
  • the trigger spring 4 is penetrated in the axial direction by a pull rod 8, on one end 8a of which the threaded sleeve 5 is screwed on and the other end 8b of which is riveted to the vertical leg 9a of an angular slide 9 which is guided in the housing 2 with its other leg 9b is.
  • Behind the leg 9a sits a vertical bar 10 on the tie rod 8, which is formed by a profiled sheet steel strip and the function of which is still described in detail.
  • this bearing part 11 is frame-shaped, ie provided with a through-opening 11g for the pull rod 8 and, viewed in side view, has approximately the shape of a C (cf. FIG. 11).
  • the upper leg of the C is formed by a transverse plate 11b, whereas the lower leg consists of two lobes 11c1 and 11c2 arranged symmetrically with respect to the vertical longitudinal median plane of the toe piece 1.
  • the longer lever arm 13a, 14a of each angle lever 13, 14 has an essentially U-shaped cross section, wherein axes 15-18 are arranged in the two legs, on which rollers 19-22 are mounted.
  • the upper legs of the longer lever arms 13a, 14a are supported on the top of the shoe sole.
  • the shorter lever arms 13b, 14b of the two angle levers 13, 14 are supported in a known manner on the vertical bar 10 fastened on the pull rod 8.
  • the transverse wall 2a of the housing 2 has, to the upper contact surface 2b2, a rearward, approximately horizontal projection 2c, which is rectangular in plan view and which engages in a recess 11d of the bearing part 11 with play.
  • the upper boundary surface 11e of the bearing part 11 located below the recess 11d is at a distance of a few millimeters from the projection 2c.
  • the bearing part 11 moves somewhat upwards depending on the thickness of the ski boot sole.
  • the bearing part 11 also experiences a pivoting movement by a small angle ⁇ in addition to the upward displacement. It is not necessary to adjust the height of the two angle levers 13, 14 to the different thickness of the ski boot soles, since their height is adjusted automatically.
  • the lower contact surface 2b1 is interrupted in its central region by a lower projection 2d, the boundary line - seen in plan view - is formed by a rectangle and an isosceles triangle.
  • This projection 2d designed in the manner of a wedge is assigned a recess 11f in the bearing part 11, which is adapted to the outline of the projection 2d (see FIG. 1a).
  • the bearing part 11 in FIG. 1 is pivoted counterclockwise.
  • the trigger spring 4 is biased more strongly, and the bearing part 11 is raised relative to the driving position until the upper boundary surface 11e in the groove between the projection 2c and the upper contact surface 2b2 (first phase, see Fig. 4).
  • the lower counter surface 11a 1 of the bearing part 11 is lifted off the contact surface 2 b 1 of the housing 2, but the bearing part 11 is still guided on the lower projection 2 d of the housing 2 (second phase, see FIGS. 5 and 5 a) .
  • the bearing part 11 is first pivoted counterclockwise in the manner described above until the position shown in FIG. 5a is exceeded. Subsequently, the bearing part 11 is rotated in a transverse plane on the longitudinal axis of the ski. This is made possible by the fact that the through opening 11g has ample play with respect to the pull rod 8. During this rotation, the upper region of the bearing part 11 is held in place by the upper projection 2c of the housing 2, which engages in the recess 11d with play. In the lower region of the bearing part 11, the recess 11f is lifted off the lower projection 2d of the housing 2, after which the bearing part 11 swings transversely to the longitudinal axis of the ski 3 may (third phase, see Fig. 6 and 6a). The vertical bar 10 releases the shorter lever arms 13b, 14b of the two angle levers 13, 14, which makes it easier for the skier to get out of the front jaw 1 with his ski shoe (see FIGS. 6, 8 and 10).
  • the return of the bearing part 11 to the driving position or to the entry position takes place through the wedge-like design of the front side of the lower projection 2d of the housing 2, on which wedge the boundary edge of the recess 11f in the bearing part 11 is supported (see FIG. 6a).
  • the bearing part 11 is pulled by the release spring 4 in the direction of the contact surface 2b1 of the housing 2 until the position shown in Fig. 1a is reached.
  • the front jaw 1 'according to Fig. 14 differs from the front jaw 1 described first in that an intermediate piece 25 is arranged between the metal housing 2' and the metal bearing part 11 ', which is made of a low-friction but not deformable material, e.g. is made of Delrin, which reduces friction.
  • This intermediate piece 25 is equipped with a hook 25a, which can be fixed to a rib 2'g of the housing 2 '.
  • the intermediate piece 25 bears with the angled section 25c of its front side 25b against the upper projection 2'c of the housing 2 '.
  • the course of the front 25b of the intermediate piece 25 corresponds otherwise to the course of the upper contact surface 2b2 or the transverse wall 2a of the housing 2 of the first embodiment.
  • a third embodiment of a toe piece 1 ′′ is shown. It has a housing 2 '' which is attached to the top 3''a of a ski 3 '' by means of only indicated screws 3''b.
  • a release spring 4 ′′ designed as a helical spring is accommodated, the pretensioning of which is known per se can be adjusted by a threaded sleeve 5 ''.
  • the release spring 4 ′′ is arranged between a spring plate 6 ′′ and a bearing bush 7 ′′, which is mounted in a vertical transverse wall 2 ′′ a of the housing 2 ′′.
  • the release spring 4 ′′ is penetrated in the axial direction by a pull rod 8 ′′, on one end 8 ′′ a of which the threaded sleeve 5 ′′ is screwed and the other end 8 ′′ b with the vertical leg 9 ′′ a of an angular one Slider 9 "is firmly connected, which is guided with its other horizontal leg 9" b in the housing 2 ". Behind the leg 9''a sits on the pull rod 8 '' a vertical bar 10 '', which is formed by a profiled sheet steel strip and whose function will be described in detail.
  • the housing 2 '' On the back of the vertical transverse wall 2''a are on the housing 2 '' three support areas arranged at vertical distances from each other, which are formed in the third embodiment as contact surfaces, namely a lower 2''b1, an upper 2''b2 and a third 2''b3.
  • the lower contact surface 2''b1 runs below the pull rod 8 '', whereas the other two contact surfaces 2''b2 and 2''b3 are above the pull rod 8 ''.
  • the contact surfaces 2''b1 and 2''b2 are formed by flat surfaces which include angles ⁇ and ⁇ with the horizontal plane.
  • the lower contact surface 2''b1 is divided into two sections 2''b 1a and 2''b 1b .
  • the third contact surface 2''b3, however, is - seen in cross section - curved approximately semicircular.
  • this contact surface 2''b3 protrudes backwards beyond the ideal vertical plane through the center lines of the other two contact surfaces 2''b1 and 2''b2.
  • the third contact surface 2''b3, like the lower 2''b1 is not continuous, but consists of two from each other by an approximately horizontal, approximately rectangular projection in plan view 2''c separate sections 2''b 3a and 2''b 3b .
  • the third contact surface 2''b3 is assigned to the upper region of the counter surface 11''a2, which includes an angle ⁇ with a vertical transverse plane. Furthermore, in the rest position (when the ski boot is not in use), the bearing part 11 ′′ also bears against the vertical transverse wall 2 ′′ a of the housing 2 ′′.
  • the bearing part 11 ′′ has in its upper region an upper recess 11 ′ ’d in which an upper projection 2 ′′ c of the housing 2 ′′ engages with play.
  • the lower contact surface 2''b1 is interrupted in its central region by a lower projection 2''d and divided into sections 2''b 1a and 2''b 1b .
  • a recess 11''f in the bearing part 11 '' is assigned to this lower projection 2''d, which corresponds to the projection 2''d.
  • the bearing part 11 '' is - seen from the rear - frame-shaped, ie for the tie rod 8 '' with a through opening 11''g, which is closed at the top by a web 11''h with an upper boundary surface 11''e .
  • the bearing part 11 ′′ has - seen in a side view - approximately the shape of a C (cf. FIG. 21).
  • the upper leg of the C is formed by a transverse plate 11 "b, whereas the lower leg consists of two lobes 11" c 1 and 11 "c 2 arranged symmetrically with respect to the vertical longitudinal median plane of the toe piece 1".
  • an axis 12''a or 12''b is arranged, on which an angle lever 13 '' or 14 '' is mounted is.
  • the longer lever arm 13''a, 14''a of each angle lever 13 '', 14 '' has a substantially U-shaped cross section, with axes 15 '' - 18 '' being arranged in the two legs, on which rollers 19 '' - 22 '' are stored.
  • the vertical bar 10 ′′ lies with its lower region under the influence of the pull rod 8 ′′ acted upon by the spring 4 ′′ by means of the projection 11 ′′ i directly on the bearing part 11 ′′ and in its upper region on the shorter lever arms 13''b, 14''b.
  • the bearing part 11 '' by means of its counter surfaces 11''a1 and 11''a2 pressed against the two contact surfaces 2''b1 and 21b2 of the transverse wall 2 ⁇ a of the housing 2 ⁇ .
  • the longer lever arms 13 ⁇ a, 14 ⁇ a of the two angle levers 13 ⁇ , 14 ⁇ are pushed against the vertical longitudinal center plane of the toe piece 1 ⁇ (see FIG. 15).
  • the bearing part 11 ⁇ assumes a similar position to that in FIG. 17 when a ski boot 24 ⁇ with a low shoe sole is inserted in the front jaws 1 ⁇ and a backward fall of the skier is initiated (see FIG. 18). In this case, the bearing part 11 ⁇ slides along the two contact surfaces 2 ⁇ b1 and 2 ⁇ b2 upwards until its web 11 ⁇ h with the upper boundary surface 11 ⁇ e abuts the underside of the projection 2 ⁇ c de housing 2 ⁇ . Then the bearing part 11 ⁇ is pivoted counterclockwise.
  • the trigger spring 4 ⁇ is biased more strongly, and the lower counter surface 11 ⁇ a1 of the bearing part 11 ⁇ is lifted off the lower contact surface 2 ⁇ b1 of the housing 2 ⁇ until the lower projection 2 ⁇ d the recess 11 ⁇ f in the bearing part 11 ⁇ has left and the counter surface 11 ⁇ a2 bears on the third contact surface 2 ⁇ b3 (see FIGS. 19 and 20). This completes the first phase of the swivel movement in the event of a backward fall.
  • the bearing part 11 ⁇ is pivoted at least counterclockwise in FIGS. 19 and 20 until the lower projection 2 ⁇ d of the transverse wall 2 ⁇ a of the housing 2 ⁇ the recess 11 ⁇ f has left 11 ⁇ in the bearing part. Subsequently, the bearing part 11 ⁇ is rotated in a transverse plane on the longitudinal axis of the ski. This will do so allows the through hole 11 ⁇ g has plenty of play compared to the tie rod 8 ⁇ . During this pivoting, the bearing part 11 ⁇ is pivotably supported by the upper projection 2 ⁇ c of the transverse wall 2 ⁇ a of the housing 2 ⁇ , which engages in the recess 11 ⁇ d of the bearing part 11 ⁇ .
  • the fourth embodiment of a toe piece 1 ′′′ shown in FIGS. 23-23c differs from the third one in that a support area in the form of an edge 2 ′′′ b3 is provided as a third system, which is defined by the line of intersection of the transverse wall 2 ′′′ a of the housing 2 ′′′ is formed with the top.
  • This measure takes place in the first phase of the surface 11 ′′′ a2 on the associated end face of the transverse wall 2 ′′′ a, and the distance "b", which increases in the third embodiment with increasing pivoting angle of the bearing part 11 ⁇ , in the second Phase kept constant for all values of the swivel angle.
  • the edge 2 IV b3 of the transverse wall 2 IV a and an inclined surface 2 IV e is formed between the transverse wall 2 IV a and the top of the housing 2 IV runs.
  • 25 - 25c shown sixth embodiment of a toe 1 V has the advantage that the third surface 2 V b3 is formed by part of a circular cylinder, and that the associated third counter surface 11 V a3 on the bearing part 11 V from a groove is formed, which is also limited by a circular cylindrical surface.
  • This solution has the advantage that the distance "b" remains constant in the second phase during the swiveling process, but that due to the size of the surface contact during use of the toe piece 1 V there is practically no wear.
  • FIG. 26 shows a seventh embodiment of a front jaw 1 VI , in which the upper sides of the housing 2 VI and the bearing part 11 VI are convexly curved. This has the consequence that the third support area 2 VI b3 for the bearing part 11 VI is reduced to two points 2 VI b 3a and 2 VI b 3b , which are connected by an ideal swivel axis.
  • the two angle levers do not necessarily have to have a U-shaped cross section. Rather, it would be conceivable to equip the bearing part with a separate sole hold-down which could be formed by the plate in which the axes of the angle levers are mounted with their upper ends.
  • the intermediate piece between the housing and the bearing part need not be made entirely of a low-friction material. Rather, it suffices to provide this intermediate piece with a layer of such a material in its area adjacent to the bearing part.
  • kinematic reversals of the designs of the bearing part and the transverse wall are also to be protected by the invention.

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  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)

Claims (21)

  1. Mâchoire avant (1) consistant en un boîtier (2) pouvant être fixé à un ski dans lequel un ressort de déclenchement (4) est logé, et qui est traversé par une tige de traction (8) sollicitée par le ressort de déclenchement (4) et agissant, par l' intermédiaire d'une coulisse guidée dans le boîtier (2), sur les bras de levier courts de deux leviers coudés (13, 14 à 13'', 14'') pouvant pivoter autour d'axes verticaux (12a, 12b à 12''a, 12''b), et dont les bras de levier plus longs (13a, 14a à 13''a, 14''a) sont appliqués contre l'extrémité antérieure de la semelle de la chaussure de ski, caractérisée par le fait que le boîtier (2 à 2VI) présente deux surfaces de contact (2b₁, 2b₂ à 2Vb₂) destinées à une pièce de montage (11 à 11VI), les surfaces de contact (2b₁, 2b₂ à 2Vb₂) - observées en élévation latérale - étant situées à des distances verticales de la tige de traction (8 à 8'') ; par le fait que les axes (12a, 12b à 12''a, 12''b) des deux leviers coudés (13, 14 à 13'', 14'') sont disposés dans la pièce de montage (11 à 11VI) qui est percée d'un orifice (11g à 11VIg) de passage de la tige de traction (8 à 8'') et est appliquée au moyen de ses surfaces complémentaires (11a₁, 11a₂ à 11Va₂), dans la position de déplacement, sous l'influence du ressort de déclenchement (4 à 4''), contre les deux surfaces de contact (2b₁, 2b₂ à 2Vb₂) ; et par le fait que le boîtier (2) comporte une saillie (2c) dépassant vers l'arrière et limitant, vers le haut, la course de coulissement de la pièce de montage (11).
  2. Mâchoire avant selon la revendication 1, caractérisée par le fait que les deux surfaces de contact (2b₁, 2b₂) sont inclinées d'angles aigus (α, β) par rapport à la face supérieure (3a) du ski, l'angle inférieur (α) étant plus petit que l'angle supérieur (β) ; et par le fait que, à l'état soulagé de la mâchoire avant (1), les surfaces complémentaires (11a₁, 11a₂) s'étendent selon les mêmes angles.
  3. Mâchoire avant selon la revendication 1, caractérisée par le fait qu'une barrette verticale (10) est fixée à la tige de traction (8) et pousse, aussi bien par sa région supérieure que par sa région inférieure, les surfaces complémentaires (11a₁, 11a₂) de la pièce de montage (11) contre les surfaces de contact associées (2b₁, respectivement 2b₂) du boitier (2).
  4. Mâchoire avant selon la revendication 1 ou 2, caractérisée par le fait que la saillie (2c) est prévue à la face supérieure de contact (2b₂) du boîtier (2) et forme, lors d'une chute vers l'arrière l'appui destiné à une surface de délimitation supérieure (11e) de la pièce de montage (11).
  5. Mâchoire avant selon l'une des revendications 1, 2 et 4, caractérisée par le fait qu'une saillie cunéiforme (inférieure) (2d) est disposée au centre de la surface inférieure de contact (2b₁), saillie dont la ligne de délimitation - observée en plan - est formée par un rectangle et par un triangle équilatéral ; et par le fait qu'une échancrure (11f), pratiquée dans la pièce de montage (11), est adaptée à la configuration de la saillie (2d) (voir les figures 1a, 5a et 6a).
  6. Mâchoire avant selon la revendication 1, caractérisée par le fait que la tige de traction (8) est munie, du côté voisin de la chaussure de ski, d'une région cylindrique (8b) guidée dans une douille de portée (7) qui est fixée dans une paroi transversale (2a) du boîtier (2).
  7. Mâchoire avant selon la revendication 3, caractérisée par le fait que la barrette (10) est guidée par sa région extrême inférieure, dans une gorge longitudinale (2f) de la base (2c) du boîtier (2), en étant arrêtée à l'encontre d'un couple de rotation.
  8. Mâchoire avant selon la revendication 1 caractérisée par le fait qu'une pièce intercalaire (25), située entre le boîtier (2') et la pièce de montage (11'), est fabriquée en un matériau à faible frottement, par exemple du Delrin.
  9. Mâchoire avant selon la revendication 8, caractérisée par le fait que la pièce intercalaire (25) présente un crochet (25a) immobilisé sur une nervure (2'g) du boîtier (2'), la pièce intercalaire (25) étant appliquée, par une région coudée (25c) de sa face antérieure (25b), contre la saillie supérieure (2'c) du boîtier (2').
  10. Mâchoire avant selon la revendication 1, caractérisée par le fait qu'il est prévu sur le boîtier (2'' à 2VI), au-dessus et à distance verticale de la surface supérieure de contact (2''b₂ à 2VIb₂), une zone d'appui (2''b₃ à 2VIb₃) réalisée sous la forme d'un troisième contact et s'étendant transversalement par rapport à la tige de traction (8'' à 8VI) ; par le fait que la pièce de montage (11'' à 11VI) est installée à pivotement par rapport au boîtier (2'' à 2VI) ; et par le fait que le pivotement de la pièce de montage (11'' à 11VI) englobe deux phases, auquel cas, durant la première phase, la pièce de montage (11'' à 11VI) pivote autour d'un axe transversal imaginaire de sa membrure (11''h à 11VIh) et est appliquée durant la seconde phase, par l'intermédiaire de sa surface complémentaire (11''a₂ à 11VIa₂), contre la zone d'appui (2''b₃ à 2VIb₃) (figures 15 - 26).
  11. Mâchoire avant selon la revendication 10, caractérisée par le fait que la pièce de montage (11'' à 11VI) présente, dans sa région extrême inférieure, une saillie (11''i à 11VIi) qui est dirigée vers l'arrière, et sert à offrir un contact à une barrette verticale (10'' à 10VI) fixée à la tige de traction (8'' à 8VI).
  12. Mâchoire avant selon la revendication 10 ou 11, caractérisée par le fait que la zone d'appui (2''b₃ à 2VIb₃) se compose de deux segments (2''b3a, 2''b3b à 2VIb3a, 2VIb3b) qui se trouvent des deux côtés du plan médian longitudinal vertical de la mâchoire avant (1'' à 1VI) et décrivent, entre eux, une saillie (2''c à 2VIc) s'engageant dans un évidement (11''d à 11VId) de la pièce de montage (11'' à 11VI).
  13. Mâchoire avant selon l'une des revendications 10 à 12, caractérisée par le fait que, observée en coupe longitudinale passant par la mâchoire avant (1''), la zone d'appui (2''b₃) présente une courbure curviligne, notamment en arc de cercle, la pièce de montage (11'') prenant appui durant la seconde phase de son pivotement, dans les différentes positions prises par pivotement, le long d'une ligne de contact s'étendant dans le sens transversal par rapport à la tige de traction (8'') (figures 15 - 22c).
  14. Mâchoire avant selon l'une des revendications 10 à 13, caractérisée par le fait que la surface complémentaire (11''a₂ à 11VIa₂) de la pièce de montage (11'' à 11VI) présente une étendue plane (figures 15 - 24c).
  15. Mâchoire avant selon les revendications 10 à 12, caractérisée par le fait que la zone d'appui (2'''b₃) est une arête formée par la ligne d'intersection de la paroi transversale (2'''a) et de la face supérieure du boîtier (2''') (figures 23 - 23c).
  16. Mâchoire avant selon les revendications 10 et 14, caractérisée par le fait que la paroi transversale (2IVa) du boîtier (2IV) comporte un biseau (2IVe) dirigé vers l'avant, l'arête (2IVb₃) de ce biseau (2IVe), ainsi formée, constituant la zone d'appui (figures 24 - 24c).
  17. Mâchoire avant selon la revendication 10 ou 14, caractérisée par le fait que la face supérieure du boîtier (2VI) - considérée dans la direction de la tige de traction - est réalisée avec courbure convexe ; et par le fait que la zone d'appui est formée par deux points (2VIb3a, 2VIb3b), reliés l'un à l'autre au moyen d'une ligne imaginaire qui - considérée dans la direction de déplacement - s'étend dans un plan perpendiculaire à la tige de traction (figure 26).
  18. Mâchoire avant selon l'une des revendications 10 à 12, caractérisée par le fait que la zone d'appui (2Vb₃) du boîtier (2V) présente une courbure en arc de cercle observée en coupe longitudinale passant par la mâchoire avant (1V) ; et par le fait que la surface complémentaire (11Va₂) de la pièce de montage (11V) est réalisée avec courbure correspondante dans la région de cette surface qui est associée à la zone d'appui (2Vb₃) (figures 25 - 25c).
  19. Mâchoire avant selon l'une des revendications 10 à 18, caractérisée par le fait qu'il existe un rapport d'environ 1 : 1,3 entre la distance (a) comprise entre la ligne de contact de la saillie (11''i à 11VIi) de la pièce de montage (11'' à 11VI) avec la barrette (10'') et l'axe transversal imaginaire de la membrure (11''h à 11VIh) de la pièce de montage (11'' à 11VI), et la distance (b) séparant la ligne de contact de la saillie (11''i à 11VIi) de la pièce de montage (11'' à 11VI) avec la barrette (10''), et la ligne de contact de la zone d'appui (2''b₃ à 2VIb₃) avec la surface complémentaire (11''a₂ à 11VIa₂) de la pièce de montage (11'' à 11VI) (figures 17 et 18).
  20. Mâchoire avant selon l'une des revendications 10 à 19, caractérisée par le fait que la pièce de montage (11'' à 11VI) est appliquée contre la zone d'appui (2''b₃ à 2VIb₃) uniquement lorsque la prise, existant entre la saillie inférieure (2''d à 2VId) du boîtier (2'' à 2VI) et l'évidement (11''f à 11VIf) de la pièce de montage (11'' à 11VI), est déjà supprimée (figures 19 à 20).
  21. Mâchoire avant selon l'une des revendications 10 à 20, caractérisée par le fait qu'une butée (23''), fixée au boîtier (2''), est associée à la barrette verticale (10'') et limite l'angle de pivotement de la pièce de montage (11'' à 11VI) (figures 15 - 20).
EP90109414A 1989-07-21 1990-05-18 Mâchoire avant Expired - Lifetime EP0408855B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
AT0176289A AT396066B (de) 1989-07-21 1989-07-21 Vorderbacken
AT1762/89 1989-07-21
AT2790/89 1989-12-11
AT0279089A AT399822B (de) 1989-12-11 1989-12-11 Vorderbacken

Publications (3)

Publication Number Publication Date
EP0408855A2 EP0408855A2 (fr) 1991-01-23
EP0408855A3 EP0408855A3 (en) 1991-10-30
EP0408855B1 true EP0408855B1 (fr) 1994-01-19

Family

ID=25596745

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90109414A Expired - Lifetime EP0408855B1 (fr) 1989-07-21 1990-05-18 Mâchoire avant

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Country Link
US (1) US5193841A (fr)
EP (1) EP0408855B1 (fr)
JP (1) JPH0783788B2 (fr)
DE (1) DE59004288D1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT396337B (de) * 1991-03-28 1993-08-25 Tyrolia Freizeitgeraete Vorderbacken
AT397472B (de) * 1991-03-28 1994-04-25 Tyrolia Freizeitgeraete Vorderbacken
AT397353B (de) * 1991-08-28 1994-03-25 Tyrolia Freizeitgeraete Vorderbacken
AT399101B (de) * 1991-08-28 1995-03-27 Tyrolia Freizeitgeraete Vorderbacken
DE59404809D1 (de) * 1993-07-21 1998-01-29 Tyrolia Freizeitgeraete Vorderbacken
ATE243052T1 (de) * 1997-01-29 2003-07-15 Look Fixations Sa Sicherheitsbindung an der oberseite des skistiefels
CH693129A5 (de) * 1998-11-16 2003-03-14 Look Fixations Sa Sicherheitsskibindung.

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT315698B (de) * 1972-04-06 1974-06-10 Smolka & Co Wiener Metall Vorderbacken für Skibindungen
AT321170B (de) * 1972-12-18 1975-03-25 Smolka & Co Wiener Metall Skibindungsteil
DE2448769C2 (de) * 1974-10-12 1982-08-26 Geze Gmbh, 7250 Leonberg Haltevorrichtung für Sicherheitsskibindungen
AT347309B (de) * 1977-02-23 1978-12-27 Smolka & Co Wiener Metall Skibindungsteil
DE2835733C3 (de) * 1978-08-16 1981-03-12 Geze Gmbh, 7250 Leonberg Anzeigevorrichtung für die Auslösehärte einer Schraubenfeder bei einer Sicherheitsskibindung
FR2458299A1 (fr) * 1979-06-06 1981-01-02 Salomon & Fils F Fixation de securite pour ski
AT368396B (de) * 1980-07-24 1982-10-11 Tyrolia Freizeitgeraete Backen
AT369283B (de) * 1980-08-06 1982-12-27 Tyrolia Freizeitgeraete Backen, insbesondere vorderbacken
AT369284B (de) * 1980-11-04 1982-12-27 Tyrolia Freizeitgeraete Backen, insbesondere vorderbacken
FR2596664B1 (fr) * 1986-04-08 1988-12-23 Look Sa Fixation de securite pour ski
DE3734492A1 (de) * 1987-10-12 1989-04-20 Geze Sport Vor einer vorderen standplatte eines skis angeordneter vorderbacken einer sicherheitsskibindung
DE3742483C2 (de) * 1987-12-15 1994-07-07 Geze Sport Vorderbacken einer Sicherheitsskibindung
AT389820B (de) * 1988-03-10 1990-02-12 Tyrolia Freizeitgeraete Vorderbacken fuer sicherheitsskibindungen
AT396065B (de) * 1989-03-28 1993-05-25 Tyrolia Freizeitgeraete Vorderbacken

Also Published As

Publication number Publication date
EP0408855A3 (en) 1991-10-30
EP0408855A2 (fr) 1991-01-23
US5193841A (en) 1993-03-16
JPH0783788B2 (ja) 1995-09-13
JPH0357471A (ja) 1991-03-12
DE59004288D1 (de) 1994-03-03

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