EP0016777B1 - Safety ski binding - Google Patents

Safety ski binding Download PDF

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Publication number
EP0016777B1
EP0016777B1 EP79900592A EP79900592A EP0016777B1 EP 0016777 B1 EP0016777 B1 EP 0016777B1 EP 79900592 A EP79900592 A EP 79900592A EP 79900592 A EP79900592 A EP 79900592A EP 0016777 B1 EP0016777 B1 EP 0016777B1
Authority
EP
European Patent Office
Prior art keywords
boot
binding
connection means
ski
toe
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
Application number
EP79900592A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0016777A1 (en
Inventor
Jack Georg Gustavsson
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0016777A1 publication Critical patent/EP0016777A1/en
Application granted granted Critical
Publication of EP0016777B1 publication Critical patent/EP0016777B1/en
Expired 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
    • A63C9/086—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings using parts which are fixed on the shoe of the user and are releasable from the ski binding
    • 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
    • A63C9/007—Systems preventing accumulation of forces on the binding when the ski is bending
    • 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
    • A63C9/0805—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
    • A63C9/084—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with heel hold-downs, e.g. swingable
    • 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
    • A63C9/08535—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 mobile body or base or single jaw
    • A63C9/0855—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 mobile body or base or single jaw pivoting about a vertical 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
    • A63C9/08557—Details of the release mechanism

Definitions

  • the present invention generally relates to safety ski bindings, and more particularly the invention is directed to a type of slalom binding, so called release binding, which is formed with a toe fastening means and a heel fastening means which cooperate with the slalom boot in such a way, that the binding does not cause a release of the boot at normal skiing but oppositely causes a release of a boot from the binding at a relative force between the slalom boot and the binding exceeding a predetermined force. It must be possible to obtain a release either in that the boot is subjected to a strong rotating movement in relation to the slalom binding or in that the boot is raised from the binding at the heel fastening means or possibly at the toe fastening means.
  • Ski bindings of this type are well known in the art and the ski binding which is at present most commonly used comprises two separate parts, viz. a toe connection means and a heel connection means.
  • the heel connection means is formed so that it may, by a special actuation, be fold up whereas the toe connection means comprises a bracket which generally can be rotated about a vertical shaft but which by an adjustable spring is kept in a predetermined central position.
  • the slalom boot is clamped into such a binding in that the boot is put down on the binding and the toe cup is moved into a position underneath the bracket at the toe connection means, whereupon the heel connection means is treaded down so as to clamp the heel portion of the boot to the ski or the binding.
  • an anti-friction plate has been mounted just behind the toe bracket at a bottom plate which is connected to the toe connection means.
  • the toe cup bracket is adjusted so that the slalom boot is kept pressed onto the friction plate and so that the said pressure is such that the binding really releases if the boot is rotated vigorously in relation to the ski.
  • a too strong pressing downwards of the boot may cause that the binding does not release and a too light clamping may cause that the binding releases at too low forces.
  • the heel connection means must press the boot to the binding with such force that the binding releases when the boot is raised with an exactly predetermined force.
  • Ski binding of this type are disadvantageous in some respects. Both the toe connection means and the heel connection means must be adjusted very carefully depending on the weight of the skier, the skillness of skiing, the condition of the ski path and many other factors. The adjustment must be made very exactly what is both a time consuming and an accuracy demanding work. It is also very important that the boot is completely clean at the bottom surface both when adjusting the binding and when skiing, since snow, ice, sand or any other material at the bottom surface of the boot cause changes of the release values. Further the friction plate for the toe cup of the boot is worn by time, and the binding frequently must be readjusted. Since the binding is formed with two parts there is also a need for great accuracy when mounting the binding on the ski, and both rough adjustment and fine adjustment of the release forces must be made after the binding is mounted on the ski.
  • ski binding in which the toe connection means and the heel connection means are mounted in a plate which is releasable and which can in turn be clamped to the ski by means of two fastening means, one for the front part of the plate and one for the rear part of the plate.
  • ski binding there are two adjustment means for the plate, one for the front part of the plate and one for the rear part thereof. Also in this binding there is an anti-friction plate provided just behind the toe connection means mounted on the ski, and also in this case snow, ice, sand and other impurities may cause a false rotation release. Also in this case the toe connection means and the heel connection means are separated from each other and also in this case the adjustment must be made by means of two separate adjustment screws. Like in the previously discussed ski binding the toe connection means and the heel connection means move when the ski bows for instance at a pit or a hump, and there is a serious risk that the binding falsely releases at pits or humps of the slope.
  • Another type of ski binding in which attempts have been made to eliminate further or other disadvantages comprises a plate, which is screwed to the underside of the boot and which co-operates with two side palls which are screw connected to the ski. Also this binding is sensitive to snow, ice or impurities under the boot or under the plate, impurities may easily enter the clamp mechanism for the side palls, and the side palls must for various reasons be very strongly clamped, and therefore it may be difficult to put on the boot including the attachment plate on the ski binding, especially for children.
  • ski bindings also involve the disadvantage that the boot always must enter the binding with the toe part first whereas it may seem natural to many people to clamp the binding with the heel part of the boot firstly put down on the ski or the bottom plate.
  • the heel connection means is provided to clamp the boot at the rearmost part thereof, whereas for orthopedical reasons it is considered more suitable to provide the heel connection means so as to form substantially an elongation of the longitudinal direction of the fibula (the lower leg portion). In this case a rotation and a subsequent release follows substantially about the center of the leg rather than some distance behind the said center like in the previously known ski bindings.
  • a ski binding is known from the DE-A-2.200.056 which comprises a toe roller and heel connection means in the form of two hooks engaging a cross pin in the ski boot, and both the toe roller and the heel connection hooks are mounted in relation to the ski. There is a single adjustment means for the entire ski binding.
  • This said ski binding is disadvantageous in that the plate on which the toe rollers and the heel connection hooks are mounted is not rigidly fixed to the ski; the toe roller locks the boot against release in the vertical direction; the toe roller does not allow to tread the boot down with the toe; the said mounting plate is not mounted with the major portion on a slight distance above the ski; and the heel connection means is formed so that by rotating the toe portion of the boot sideways one of the heel clamps is released from the ski boot as soon as the boot is released whereas the other heel clamp is still retaining the opposite side of the boot.
  • Basis of the invention therefore is the problem to provide a safety ski binding for downhill skiing which:
  • the invention relates to a safety ski binding for downhill skiing comprising a base plate supporting at one end a toe connection means (5) and at the other end a heel connection means, in which the toe connection means is a rotatable roller having a web portion adapted to co-operate with the ski boot, said roller being mounted movably in the base plate in a longitudinal direction thereof and being spring biassed towards the heel connection means, and in which the heel connection means is in the form of a U-shaped clamp including two parallel and upright lock clamps mounted to a bottom plate, said lock clamps having recesses facing the front part of the binding co-operating with connection means provided on each side of the ski boot, the upper edge of the recesses extending at an angle upwardly to the horizontal plane to enable a release upwards of the heel connection means the said lock clamps further having entering edges extending upwardly and rearwardly from said recesses in order to enable a treading down of the ski boot from above the binding, characterised in that the base plate is rigidly fixed to the ski with
  • a safety ski binding 1 for downhill skiing which is formed as an integral unit and adapted to be mounted on a ski 2 and for use together with a ski boot 3 having special fittings adapted to the binding.
  • the binding generally comprises a base plate 4 which at its front end carries a toe connection means in a form of a conical or biconical roller 5 and which at the rear end carries a heel connection means 6 for the boot.
  • the base plate 4 is formed as a box which is at least partly hollow and which comprises a top plate 7 a bottom plate 8 and sides 9.
  • the plates 7 and 8 may be of metal for instance aluminium, which is suitably treated to act repellant to snow, ice and dirt etc.
  • the base plate 4 carries the toe connection means 5 for the boot 3 and at the rear end the base plate carries the heel connection means 6 for the boot 3.
  • the toe connection means includes a slide 10 which is slidable in the longitudinal direction of the ski binding inside the base plate 4 and it is guided by two longitudinally extending guide bars 11.
  • a pin screw 12 is mounted which extends up through a longitudinal slot 13 of the top plate 7.
  • the upper portion of the pin screw 12 carries the toe connection roller 5 on ball bearings 14 so that the roller by the least possible friction can rotate about the pin screw 12.
  • the roller 5 is formed with a guiding base disc 15 contacting or provided adjacent the top plate 7, and from the base disc 15 a short web portion extends upwards which runs into an upwardly diverging cone 17.
  • the cone angle can be varied according to the circumstances, but a suitable cone angle may be 45°.
  • the roller is formed with an upwardly converging second cone 18, so that the roller provides a bicone having a cone angle tip or narrow border surface 19.
  • the cone surface 17 acts to enable a release by rotating the boot 3 upwards from the heel connection means and the cone surface 18 acts to enable a treading of the boot into a binding with the toe cup moved downwards over the cone surface 18.
  • the base plate 4 has a projecting screw support 20 which is fixed connected to the base plate, and through the said screw support a screw 21 extends rearwardly to a shoulder of the slide 10.
  • the portion of the screw 21 facing the slide 10 is tapered at 22, and there is a shoulder between a narrow portion 22 and the wide portion of the screw.
  • connection bar 24 For co-operation with the roller 5 the boot is provided with a connection bar 24 at the toe cup thereof.
  • the connection bar 24 is screwed or in any other way stably mounted on the boot and it is bow formed or angularly formed.
  • the angle and the length of the connection bar 24 is adapted to the intended effect.
  • a short connection bar or a connection bar having a wide opening angle gives a quicker release than a long connection bar or a bar having a more narrow opening angle.
  • the boot gets a possibility to rotate some distance in relation to the roller 5 while the said roller 5 is pressed forwards against the action of the cup springs 23, and if the torque does not exceed the maximum torque for release the spring biassed roller 5 presses the boot back to its initial position as soon as the torque or the rotation force ceases. Since the binding is completely symmetrical the boot may rotate in both directions with the same effect.
  • the top plate 7 and the bottom plate 8 projects some distance outside the base plate 4 and between the said projecting portions of the plates 7 and 8 the heel connection means 6 is rotatably mounted about a vertical pin 25.
  • the heel connection means or the heel clamp is formed by a bottom plate 26 which is rotatable about the vertical pin 25 and which at each side of the binding carries an upwardly projecting lock clamp 27.
  • the lock clamps 27 can be screwed or mounted in any other way at the bottom plate 26 and at the front edges each lock clamp 27 is formed with a recess preferably in the form of three straight edges of which the bottom edge 28 extends parallely to the base plate 4, the rear end 29 extends upwards at some ang!e rearwardly from the bottom edge 28 and the upper edge 30 extends forwards-upwards at some angle to the horizontal plane.
  • the lock clamps provide a forwardly directed ear 31 the front edge 32 of which is directed upwards-rearwards at some angle to the horizontal plane.
  • the angles of the upper edge 30 and the front edge 32 are determined according to the circumstances.
  • the purpose of the upper edge 30 is to make a release possible by lifting the boot upwards with a force exceeding a predetermined maximum clamp force
  • the purpose of the front edge 32 is to enable a threading of the boot straight downwards into the binding.
  • the boot is provided with a roller 33 on both sides thereof.
  • the roller 33 is formed with a vertical or slightly conical flange 34 and a horizontal cylindric portion 35.
  • the purpose of the flange 34 is to provide a guiding of the boot into exact position against the lock clamps 27, and the purpose of the horizontal cylindric portion 35 is to provide a locking of the boot in the lock clamps. Therefore the dimension of the horizontal portion 35 of the rollers 33 is adapted to the dimensions of the recess 28-30.
  • the toe and heel clamps and the corresponding parts of the boot is preferably formed so that the boot is not in direct contact with the top plate 7 but a small space is present between the boot and the top plate to permit a slight amount of snow, ice or dirt on the boot without causing problems.
  • the binding can be mounted in any suitable way on the ski and in Figure 3 is shown how the binding is mounted by means of screws 36 acting from underneath the ski.
  • the rear portion of the binding is connected by means of two parallel screws whereas the front portion is connected by means of one single screw.
  • the binding can be mounted on a slight distance above the upper surface of the ski, and for this purpose a space washer 37 is provided between the ski and the binding which permits the ski to bow without inflicting the binding.
  • the binding can be provided with recesses for a catch strap for instance in the form of a slot 38 provided in the portion of the bottom plate 8 projecting rearwardly or the binding can be provided with a stop means of a type known per se which releases and stops the ski as soon as the boot is removed upwards from the binding.
  • the binding according to the invention may as a complete be manufactured and adjusted in a factory together with a boot and there is no need for a complicated mounting or adjusting.
  • the only thing which possibly remains is the adjustment of the release force depending on special demands from the skier and this is made by one single adjustment means, viz. the screw 21.
  • the boot can very simply be treaded into the binding either in that the toe connection bar 24 is introduced in the toe roller 5 whereupon the boot is treaded downwards with the heel portion, whereby the cylinder part 35 of the boot roller 33 slides along the front edge 32 of the lock clamp 27 and snaps into the recess-28-30, or in that the boot is mounted in the opposite way, viz.

Landscapes

  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
EP79900592A 1978-06-19 1980-01-29 Safety ski binding Expired EP0016777B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE7807010A SE409176B (sv) 1978-06-19 1978-06-19 Sekerhetsskidbindning
SE7807010 1978-06-19

Publications (2)

Publication Number Publication Date
EP0016777A1 EP0016777A1 (en) 1980-10-15
EP0016777B1 true EP0016777B1 (en) 1983-05-25

Family

ID=20335248

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79900592A Expired EP0016777B1 (en) 1978-06-19 1980-01-29 Safety ski binding

Country Status (12)

Country Link
EP (1) EP0016777B1 (enrdf_load_stackoverflow)
JP (1) JPS6258748B2 (enrdf_load_stackoverflow)
AT (1) AT370001B (enrdf_load_stackoverflow)
AU (1) AU528002B2 (enrdf_load_stackoverflow)
CA (1) CA1134403A (enrdf_load_stackoverflow)
CH (1) CH644026A5 (enrdf_load_stackoverflow)
DE (1) DE2952860C2 (enrdf_load_stackoverflow)
GB (1) GB2038189B (enrdf_load_stackoverflow)
IT (1) IT1117223B (enrdf_load_stackoverflow)
SE (1) SE409176B (enrdf_load_stackoverflow)
SU (1) SU1041018A3 (enrdf_load_stackoverflow)
WO (1) WO1980000063A1 (enrdf_load_stackoverflow)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4536626A (en) * 1984-06-01 1985-08-20 The Singer Company Timer drive mechanism
ATE242027T1 (de) * 1993-02-17 2003-06-15 Burton Corp Bindung für gleitbretter, insbesondere snowbords
DE4311630C2 (de) 1993-02-17 1995-02-02 Guenther Riepl Bindungssystem für Gleitbretter, insbesondere Snowbords, sowie Stiefel zur Verwendung bei einem solchen Bindungssystem
FR2749483B1 (fr) * 1996-06-06 1998-09-11 Salomon Sa Dispositif de retenue d'une chaussure sur une planche de glisse
US6648365B1 (en) 1997-01-08 2003-11-18 The Burton Corporation Snowboard binding
DE69813206T2 (de) * 1997-04-18 2003-12-11 The Burton Corp., Burlington Snowboard bindung
US6722688B2 (en) 2001-11-21 2004-04-20 The Burton Corporation Snowboard binding system
DE102013009762A1 (de) * 2013-06-10 2014-12-11 Andreas Allmann Sicherheitsskibindungssystem
GB202005826D0 (en) * 2020-04-21 2020-06-03 Mason Peter Francis Cricket playing apparatus

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1428894A1 (de) * 1962-12-20 1969-04-30 Gloetzl Geb Meitinger Centa Sicherheitsskibindung
DE1428876A1 (de) * 1964-11-13 1968-12-12 Contact Geraetebau Gmbh Ski-Bindung
US3578349A (en) * 1969-05-26 1971-05-11 James Mitchell Edmund Safety ski binding
AT305108B (de) * 1971-04-16 1973-02-12 Smolka & Co Wiener Metall Skibindung
AT323621B (de) * 1973-08-30 1975-07-25 Smolka & Co Wiener Metall Federverrastung fur sicherheitsskibindungen
CH573760A5 (enrdf_load_stackoverflow) * 1973-11-21 1976-03-31 Strub Rolf
US3905613A (en) * 1974-03-14 1975-09-16 Calspan Corp Ski binding
FR2385346A1 (fr) * 1977-03-28 1978-10-27 Beyl Jean Joseph Alfred Ensemble forme par une chaussure de ski et une fixation specialement concue pour recevoir celle-ci

Also Published As

Publication number Publication date
CA1134403A (en) 1982-10-26
JPS6258748B2 (enrdf_load_stackoverflow) 1987-12-08
WO1980000063A1 (en) 1980-01-24
SE409176B (sv) 1979-08-06
DE2952860C2 (de) 1987-08-06
IT7949426A0 (it) 1979-06-15
GB2038189B (en) 1982-10-06
GB2038189A (en) 1980-07-23
CH644026A5 (de) 1984-07-13
JPS55500486A (enrdf_load_stackoverflow) 1980-08-07
IT1117223B (it) 1986-02-17
AT370001B (de) 1983-02-25
EP0016777A1 (en) 1980-10-15
DE2952860T1 (enrdf_load_stackoverflow) 1981-01-15
AU528002B2 (en) 1983-03-31
SU1041018A3 (ru) 1983-09-07
AU4810179A (en) 1980-01-03
ATA430179A (de) 1982-07-15

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