EP0404203A1 - Frein de ski - Google Patents

Frein de ski Download PDF

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Publication number
EP0404203A1
EP0404203A1 EP90113567A EP90113567A EP0404203A1 EP 0404203 A1 EP0404203 A1 EP 0404203A1 EP 90113567 A EP90113567 A EP 90113567A EP 90113567 A EP90113567 A EP 90113567A EP 0404203 A1 EP0404203 A1 EP 0404203A1
Authority
EP
European Patent Office
Prior art keywords
ski
pedal
brake
control surface
support element
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.)
Granted
Application number
EP90113567A
Other languages
German (de)
English (en)
Other versions
EP0404203B1 (fr
Inventor
Andreas Janisch
Helmut Wladar
Johann Zotter
Friedrich Leichtfried
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
TMC Corp
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 HTM Sport und Freizeitgerate GmbH, TMC Corp filed Critical HTM Sport und Freizeitgerate GmbH
Publication of EP0404203A1 publication Critical patent/EP0404203A1/fr
Application granted granted Critical
Publication of EP0404203B1 publication Critical patent/EP0404203B1/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
    • A63C7/00—Devices preventing skis from slipping back; Ski-stoppers or ski-brakes
    • A63C7/10—Hinged stoppage blades attachable to the skis in such manner that these blades can be moved out of the operative position
    • A63C7/1006—Ski-stoppers
    • A63C7/1013—Ski-stoppers actuated by the boot
    • A63C7/1033—Ski-stoppers actuated by the boot articulated about at least two transverse axes
    • A63C7/104—Ski-stoppers actuated by the boot articulated about at least two transverse axes laterally retractable above the ski surface

Definitions

  • the invention relates to a ski brake according to the preamble of claim 1.
  • a ski brake of the type mentioned is described in DE-OS 31 36 079.
  • a displacement body is arranged on or in the base plate, which causes the connecting spring to bend when the actuation pedal is depressed and thus causes the free ends of the two wire brake mandrels to pivot in against the vertical longitudinal center plane of the ski brake.
  • This ski brake has the disadvantage that the force required for pivoting engages in the middle of the spring connecting the two wire brake mandrels, which is therefore subjected to great stress, especially since the angled ends of the wire brake mandrels inserted in the spring are at a distance from the center of the spring are located.
  • the actuating member is designed as an expanding lug which is provided with a wedge. Since the dimensions of the wedge must be kept small due to the thickness of the actuation pedal, the retraction path of the brake blades is also relatively small.
  • This ski brake also requires a set-up spring and two support springs, the latter the two brake arms against the vertical longitudinal center plane of the ski brake try to push (see Fig. 9). The structure of the ski brake is therefore complicated.
  • ski brake Another type of ski brake is described in DE-OS 27 30 630.
  • the two brake arms are pivoted about axes in the plane of the actuation pedal.
  • the upper ends of the brake arms which are removed from the brake vanes, are pulled towards one another by a tension spring.
  • a crosspiece is arranged in the base plate, which spreads apart the upper ends of the two brake arms when the actuation pedal is depressed and thereby swivels the brake blades against the longitudinal axis of the ski.
  • a disadvantage of this ski brake is that the crossbar protrudes from the top of the ski, which entails a certain risk of injury in the event of or after a fall of the skier.
  • the ski brake according to AT-PS 374.114 has a brake bracket, which is bent in a lyra shape in its central area.
  • a brake bracket By means of a V-shaped indentation arranged on the actuation pedal, the two legs of the lyre-shaped area are pressed apart when the actuation pedal is depressed. This pulls in the brake blades.
  • the retraction path of the brake blades is relatively small.
  • the ski brake described in DE-OS 31 06 688 has a multi-bent actuating arm made of wire, the ends of which are angled outwards and pivotally mounted in the base plate.
  • the transitions from the web of the actuating arm to the legs are bent into bearing eyelets, in which pins are located, which serve as a pivot axis for the two brake arms.
  • Tension springs are suspended between the opposing end sections of the two brake arms and the base plate, making a separate positioning spring unnecessary.
  • the separate pivot axes significantly increase the friction between the individual elements compared to the previously discussed exemplary embodiments.
  • EP-A1 45 698 describes a ski brake in which the connecting spring between the angled and mutually directed end sections of the wire brake mandrels is designed as a leaf spring which is firmly connected to an actuating pedal.
  • this configuration has the result that the leaf spring is not only subjected to bending but also to torsion when the ski brake is depressed and swung up.
  • the raising of the two wire brake arms is brought about by a pull rod which is hinged at one end to the actuation pedal and is provided with a piston at its other end.
  • This piston is guided in a cylindrical housing and acted on by a compression spring.
  • the leaf spring In the standby position of the ski brake, the leaf spring, which is arched in the braking position, is pivoted through an angle, which results in a bending back of the leaf spring and an inward rotation of the ends of the wire brake arms carrying the brake blades.
  • the invention has for its object to eliminate the disadvantages of the known designs and to provide a ski brake in which the control of the movement of the brake arms is carried out by the actuating pedal itself.
  • FIGS. 1-6 An embodiment of the invention is shown in FIGS. 1-6.
  • 1 shows a section along the line I-I in FIG. 3 through the ski brake in the braking position
  • FIG. 2 shows the same section through the ski brake with the actuation pedal pivoted down
  • FIG. 3 shows a plan view of FIG. 1.
  • 4 and 5 show the ski brake in the downhill position similar to FIG. 2 and 3.
  • FIG. 6 is a view in the direction of arrow A in FIG. 2
  • FIG. 7 is a view in the direction of arrow B in FIG. 4th
  • FIG. Fig.4a shows a further variant of the control in the position as Fig.4.
  • Fig. 8 shows a detail of the ski brake in an oblique view.
  • FIGS. 1-6 The embodiment of a ski brake 1 shown in FIGS. 1-6 has a base plate 2 which is fastened to the top 10a of a ski 10 and in which a pivot axis 3 is mounted.
  • An actuating pedal 4 is arranged on this pivot axis 3 and is under the influence of a positioning spring 11. Furthermore, two holes 2b are left in the base plate 2, which, as is known per se, expand conically towards the outside.
  • the actuating pedal 4 is approximately rectangular in plan view, bounded by side walls 4i and has a central recess 4f with a downwardly projecting edge 4g. At the edge 4g, in the area remote from the pivot axis 3, there is a control surface 4h with surface sections 4h1 and 4h2. Furthermore, the side walls 4i of the actuation pedal 4 are provided with bends 4k which are directed towards the vertical longitudinal center plane of the ski brake 1.
  • the actuating pedal 4 accommodates two brake arms 7 which are made of a wire material and are angled several times.
  • Each brake arm 7 has an angled end section 7a running in the transverse direction to the actuation pedal 4, to which is connected a straight section 7b running in the longitudinal direction of the actuation pedal 4, to this an in turn angled section 7c running again and to this in turn a straight section 7d , which 'carries a brake blade 7e shown only in Fig.1.
  • both brake arms 7 are pivotally mounted with their transverse, angled sections 7c.
  • the subsequent straight sections 7d carry brake blades 7e.
  • the straight sections 7b adjoining the angled sections 7c within the base plate 2 merge into angled end sections 7a, which are directed towards the longitudinal center plane.
  • the end portions 7a of the two brake arms 7 are connected to each other by a coil spring 12 wound by man.
  • the base plate 2 has in its central region an extension 2c which acts as a support element and which has a boundary surface 2d which is inclined with respect to the upper side 10a of the ski 10. This is coated with a low-friction material. Furthermore, as indicated in the view in the direction of arrow A in FIG. 2 and shown in FIG. 6, the boundary surface 2d is provided with sections 2e dropping to the narrow sides of the ski 10; see. also Fig. 8.
  • the first or second surface section 4h1 or 4h2 of the control surface 4h of the actuating pedal 4 in cooperation with the upper boundary surface 2d of the approach 2c of the base plate 2 determines the position of the brake arms 7 and that of the coil spring 12 in the swung-down or depressed position of the actuating pedal 4th
  • the individual parts of the ski brake 1 are in the position shown in FIG. 1.
  • the coil spring 12 is located on the surface section 4h 1 Control surface 4h.
  • the brake blades 7e and the straight sections 7d of the brake arms 7 are located at a lateral distance from the narrow side surfaces of the ski 10.
  • the edge 4g or the beginning of the first surface section 4h 1 of the control surface 4h lies opposite the apex of the boundary surface 2d of the shoulder 2c.
  • the coil spring 12 in the depressed position of the operating pedal 4, is in the second surface section 4h 2 of the control surface 4h.
  • the angled end sections 7a of the brake arms 7 are moved further away from the pivot axis 3, the brake arms 7 themselves are pivoted with their angled sections 7c in the conical bores 2b, and the straight sections 7d carrying the brake blades 7e lie within the upper side 10a of the ski 10.
  • the ski brake 1 is thus in the ready position for the descent.
  • FIG. 7 shows the position of the ski brake 1 in the ready position from the direction of the arrow B in FIG. 4.
  • the coil spring 12 of the ski brake 1 rests on the upper boundary surface 2d of the extension 2c such that the central windings of the coil spring 12 fill the space between the second surface section 4h2 of the control surface 4h of the actuating pedal 4 and the upper boundary surface 2d of the extension 2c.
  • the turns running in the free end regions lie exclusively on the control surface 4h of the actuating pedal 4 because, because of the extension of the coil spring 12, these windings are pushed upwards.
  • FIG. 8 shows, for better illustration, the design of a detail of the base plate 2 with the shoulder 2c and the course of the upper boundary surface 2d of the latter in an oblique view.
  • the components used in FIG. 8 correspond to those already described.
  • the variant according to Figure 7a differs from the embodiment according to Figures 1 to 7 in that the control surface 4'h of the actuating pedal 4 'is convex, whereas the upper boundary surface 2'd of the approach 2'c - in a normal plane considered transversely to the longitudinal axis of the ski brake 1 '- has a flat course.
  • the upper boundary surface 2'd of the approach 2'c has a course directed away from the pivot axis, to the top 10'a of the ski 10 '.
  • both the boundary surface 2 ⁇ d of the extension 2 ⁇ c and the control surface 4 ⁇ h of the actuation pedal 4 ⁇ are each designed to run in one plane. This creates a gap during the stretching of the coil spring 12 ⁇ between the central region thereof and the boundary surface 2 ⁇ d of the approach 2 ⁇ c, so that the coil spring 12 ⁇ only along the both lateral areas of the boundary surface 2 ⁇ d of the approach 2 ⁇ c is performed.
  • the further structure of the ski brake 1 ⁇ corresponds to that of FIGS. 1 to 7.
  • the ski brake 1 When the ski boot is removed, whether due to an arbitrary exit or an involuntary fall, the ski brake 1 is brought into its braking position according to FIG.
  • the positioning spring 11 and coil spring 12 are matched to one another in such a way that the sections 7d of the two brake arms 7 carrying the brake blades 7e come earlier outside the width of the upper side 10a of the ski 10 before the positioning spring 11 places the two brake arms 7 on the upper side 10a of the ski 10 would arrive. This measure also ensures that the two brake blades 7e do not become caught on the ski 7 when the ski shoe is entered into the ski brake 1.
  • the plate 9 can be formed in one piece with the actuation pedal 4, e.g. molded from plastic material.
  • the area of the plate 9 adjoining the actuation pedal 4 is tapered in a hinge-like manner in order to enable the assembly of the two brake arms 7 in the actuation pedal 4.
  • cover the boundary surface of the attachment with a slide which has good sliding properties, for example made of polytetrafluoroethylene, instead of coating it.
  • the boundary surface or the entire extension can be made from such a material.

Landscapes

  • Braking Arrangements (AREA)
  • Braking Elements And Transmission Devices (AREA)
EP19900113567 1987-10-02 1988-09-29 Frein de ski Expired - Lifetime EP0404203B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT2507/87 1987-10-02
AT0250787A AT390200B (de) 1987-10-02 1987-10-02 Skibremse

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP88116044.4 Division 1988-09-29

Publications (2)

Publication Number Publication Date
EP0404203A1 true EP0404203A1 (fr) 1990-12-27
EP0404203B1 EP0404203B1 (fr) 1993-06-23

Family

ID=3535522

Family Applications (2)

Application Number Title Priority Date Filing Date
EP19900113567 Expired - Lifetime EP0404203B1 (fr) 1987-10-02 1988-09-29 Frein de ski
EP19880116044 Expired - Lifetime EP0310052B1 (fr) 1987-10-02 1988-09-29 Frein de ski

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP19880116044 Expired - Lifetime EP0310052B1 (fr) 1987-10-02 1988-09-29 Frein de ski

Country Status (3)

Country Link
EP (2) EP0404203B1 (fr)
AT (1) AT390200B (fr)
DE (2) DE3864224D1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0657193A2 (fr) * 1993-12-10 1995-06-14 HTM Sport- und Freizeitgeräte Aktiengesellschaft Frein de ski
DE19850297A1 (de) * 1998-10-30 2000-05-04 Marker Deutschland Gmbh Skibremse mit Verrastung

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2512682A1 (fr) * 1981-09-11 1983-03-18 Jungkind Roland Frein pour ski
FR2516392A1 (fr) * 1981-11-17 1983-05-20 Marker Patentverwertungs Gmbh Frein de ski
AT374690B (de) * 1981-03-13 1984-05-25 Tyrolia Freizeitgeraete Skibremse

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT368016B (de) * 1978-02-07 1982-08-25 Tyrolia Freizeitgeraete Skibremse

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT374690B (de) * 1981-03-13 1984-05-25 Tyrolia Freizeitgeraete Skibremse
FR2512682A1 (fr) * 1981-09-11 1983-03-18 Jungkind Roland Frein pour ski
FR2516392A1 (fr) * 1981-11-17 1983-05-20 Marker Patentverwertungs Gmbh Frein de ski

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0657193A2 (fr) * 1993-12-10 1995-06-14 HTM Sport- und Freizeitgeräte Aktiengesellschaft Frein de ski
EP0657193A3 (fr) * 1993-12-10 1995-08-16 Tyrolia Freizeitgeraete Frein de ski.
DE19850297A1 (de) * 1998-10-30 2000-05-04 Marker Deutschland Gmbh Skibremse mit Verrastung

Also Published As

Publication number Publication date
EP0310052B1 (fr) 1991-08-14
DE3864224D1 (de) 1991-09-19
AT390200B (de) 1990-03-26
EP0404203B1 (fr) 1993-06-23
EP0310052A1 (fr) 1989-04-05
ATA250787A (de) 1989-09-15
DE3882053D1 (de) 1993-07-29

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