US3801118A - Releasable ski binding - Google Patents

Releasable ski binding Download PDF

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Publication number
US3801118A
US3801118A US00259590A US3801118DA US3801118A US 3801118 A US3801118 A US 3801118A US 00259590 A US00259590 A US 00259590A US 3801118D A US3801118D A US 3801118DA US 3801118 A US3801118 A US 3801118A
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US
United States
Prior art keywords
jaw
ski
pair
symmetry
levers
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
US00259590A
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English (en)
Inventor
F Droz
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.)
Gertsch AG
Original Assignee
Gertsch AG
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 Gertsch AG filed Critical Gertsch AG
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Publication of US3801118A publication Critical patent/US3801118A/en
Anticipated expiration legal-status Critical
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    • 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
    • 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
    • A63C9/08585—Details of the release mechanism using transverse biasing element
    • 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

Definitions

  • the invention relates to a releasable ski binding provided with a jaw portion having means for engaging the sole of a ski boot, said jaw portion being supported for movement relative to a base plate from an operating position into a release position and vice versa, and said ski binding being further
  • the holding mechanism of known releasable ski bindings of this type consists as a rule of a springloaded ball-locking device.
  • the short locking paths which occur in such apparatus do not permit a reliable adjustment of the spring characteristic through the release path to the desired release conditions.
  • the jaw portion is supported separate from the holding mechanism and is guided during its release movement.
  • a separate pivot bearing is required for same; in the case of the pivotably and translatably supported jaw portions which have been preferred recently, separate and additional guide parts are required.
  • the basic purpose of the invention is to produce a releasable ski binding of the type described above in which by a compact and simple type of construction there is obtained a long spring deflection between operating or normal position of use and release position and the holding mechanism takes over a part of the guide function for the jaw portion, whereby the jaw portion, particularly after the release of the boot, is returned automatically into the operating position.
  • This purpose is attained according to the invention by providing for the holding mechanism a pair of double-arm rocking levers which are supported rotatably on the base plate and which are loaded by a spring force against the direction of pivoting, by pivotally and translatably connecting the first rocking lever arms to the jaw portion and with respect to each other, and by abutting the second rocking lever arms against stops when in the operating position and doing so in response to resilient means which are connected to the jaw portion.
  • the jaw portion is held in its operating position by a pair of rocking levers which can be rotated with respect to one another.
  • the release takes place by rotating the twoarm rocking lever in opposite directions, whereby the pivoting-translating connection between the first rocking lever arms and the jaw portion in connection with the contact between one of the second rocking lever arms and the associated stop on the jaw portion assures proper guidance thereof. Since the rocking lever movement can extend over a long path, the spring characteristic can be adjusted very accurately to any actual set of requirements.
  • the releasable ski binding can be so elastic that it reliably holds the boot during nondangerous impacts and returns it into its central position.
  • FIG. 1 is a top view of a front jaw embodying the invention and taken on the section indicated by the lines II in FIG. 5.
  • FIG. 1A is similar to FIG. 1 but shows the binding in the position assumed in response to a light load thereon which does not release the ski boot.
  • FIG. 2 is an illustration corresponding to FIG. 1 which illustrates the movement in response to a heavier load thereon and which releases the ski boot..
  • FIG. 3 is a perspective illustration of one of the rocking levers.
  • FIG. 4 is a section taken on the line IVIV of FIG. 1.
  • FIG. 5 is a section taken on the line V-V of FIG. 1.
  • FIG. 6 is a section taken on the line VI-VI of FIG. 1.
  • the drawing illustrates a releasable front jaw of a ski binding which is mounted by a base plate B on a ski S and which together with one of the usual heel holders or heel tension cables is a complete releasable ski binding.
  • the invention can, however, of course also be used through a suitable modification as a heel holder.
  • the front jaw embodying the invention has a jaw member 1 with a sole holder which consists of two sole holder wings 2.
  • the jaw contains a substantially U- shaped recess 3 into which extends a projection or boss 1a having side surfaces lb, same so extending from the side opposite the sole holder 2.
  • Said recess 3 is provided in the forward (taken in the direction of normal movement of the ski) end of the jaw member 1, same being nearly the full width of said jaw member but being in this embodiment longitudinally stepped by a portion 3a thereof to provide a surface ld thereon.
  • the surface 1d is coplanar with the upper surface 1e of the boss la.
  • Pivot pins 4 are pivotally positioned in base plate B in register with the recess 3.
  • Double-arm rocking levers 5 are supported on pins 4 for pivotal movement therewith, each of which rocking levers has one arm 5a which is directed toward the sole holder 2 and one arm 5b which is directed away from the sole holder.
  • the arms 5b abut by their respective stop pins 6 the side surfaces of the boss la, which side surfaces thus form a stop for said arms when the front jaw is in the operating or normal position of use according to FIG. 1.
  • followers 7 in the form of rollers are supported on the ends of the rocking lever arms 5a.
  • the followers 7 engage guide slots 8 which are provided in a central transverse portion lc of the jaw portion 1.
  • Each guide slot 8 has a substantially flat channel shape and consists of a substantially arcuate first section 8a and a rectilinear second section 8b.
  • the arcuately shaped sections 8a extend substantially transversely to the lo'ngitudinal direction of the ski, while the rectilinear sections 8b converge in rearward direction at an acute angle to the center line of the ski.
  • a pressure spring 9 is arranged between cups 13 (FIG. 3) of the rocking lever arms 50.
  • the pressure of said spring urges the rocking lever arms 5a apart so that the rocking levers 5 tend to rotate oppositely about their axes of rotation 4.
  • the jaw portion 1 is supported and guided in a conventional manner for free movement, both translatably and rotatably, in all directions on the base plate B.
  • such mounting is provided by placing a plate I l on the surfaces 1d and 1e and fixing same to the base plate by the posts 12 and 13.
  • the jaw member 1 thus can slide longitudinally, transversely and pivotally between said plate 11 and the upper surface of the base B within the limits of, and guided by, the rollers 7 in the grooves B.
  • the ski boot is released from the front jaw of the invention in the following manner:
  • the jaw portion 1 can yield to this load without releasing the boot. It first shifts sub stantially sidewardly to the left and the jaw portion 1 arrives in the position which is illustrated in FIG. 1A.
  • the left rocking lever is here, due to the pressure of the left side surface 1b of the projection 1a against the leftward stop pin 6, rotated counterclockwise about its axis of rotation 4 and causes its follower 7 to move in the arcuately shaped section 8a of the left (in the drawing, lower) guide slot 8.
  • the right rocking lever 5 (seen in direction of travel) is moved in response to engagement of the rightward (upper) guide member 7 with the outer end of the arcuately shaped section 8a of the right (in the drawing, upper) guide slot 8 and rotates in clockwise direction about its axis 4.
  • the stop pin 6 of the right rocking lever lifts off from the rightward side surface lb.
  • the rocking levers thus come from the parallel position which they assume during their normal operating condition into a position in which they converge with their arms 5a.
  • the pressure of the spring 9 must be overcome which thus resists the transverse shifting of the jaw portion 1.
  • the jaw portion 1 continues in a pivoting-translating movement against the resistance of spring 9 until the jaw portion, in the case of a release movement to the left, assumes the position illustrated in full lines in FIG. 2, in which position it releases the front end of the ski boot. ln'attaining this position the follower 7 of the left rocking lever 5 slides first the full length of part 8a of slot 8 and then slides in the rectilinear section 8b of the associated guide slot 8'.
  • the jaw portion 1 can move first translatably leftwardly and then pivotally forwardly on the left side, whereby it rotates simultaneously. about the follower of the right rocking lever, which follower is held in the outer end of the other guide slot. The jaw portion 1 thus withdraws to the side and to the front which effects release of the front end of the boot.
  • a rightwardly directed force releases the ski boot by a procedure in mirror image to that above described.
  • the invention is not limited to the illustrated exemplary embodiment.
  • the force of the pressure spring 9 can be changed by any convenient adjusting means not illustrated.
  • the pressure spring 9 would have to be constructed in two parts and an oppositely adjustable abutment would have to be inserted in its center.
  • a tension spring which tends to pull together the lever arms 5b.
  • separate tension springs to engage the arms 50 from the outside.
  • rocking levers hold the jaw portion, which otherwise is freely movable on its base plate, clamped in the central position and guide it-movably and swingably, whereby during this movement the rocking levers are moved against spring force into a position in which their rearwardly projecting arms converge. It is of course also possible to provide any stop pins or noses on the jaw portion which pins or noses cooperate with the arms of the rocking levers. Finally it is also possible to modify the guide slots and the followers.
  • a front jaw for releasable ski bindings comprising: means defining a base secured to a ski having a tip end;
  • guide means for guiding the movement of said jaw means in a predetermined path in said horizontal plane between a normal position of use and an intermediate laterally shifted position and between said intermediate position and a ski boot releasing position, said guide means including:
  • a pair of two arm levers pivotally secured to said base means about separate, vertical axes laterally spacedly by symmetrically positioned relative to said longitudinal line of symmetry, both arms of each or said pair of levers having stop means thereon, one of said stop means on each of said levers being adapted to be received in separate ones of said pair of guide slots, the other of said stop means being adapted to engageabutment means on said jaw means, both of said other stop means engaging'said abutment means when said jaw means is in said normal position of use; and
  • resilient means engaging and extending between said pair of two arm levers to normally maintain said other stop means in engagement with said abutment means and normally maintain said jaw means in said normal position of use, said resilient means urging, through at least one of said one stop means on said lever means, said jaw means toward said normal position of use when said jaw means is between said normal position of use and said intermediate position of use, said guide means also effecting a guided movement of said jaw means laterally of said line of symmetry and forwardly on said base means toward said tip end and away from the sole of a ski boot when said jaw means is moving laterally away from said line of symmetry between said intermediate position toward said ski boot releasing position.
  • each of said other stop means are adapted to engage a separate one of said parallel surfaces.

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  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
US00259590A 1971-06-10 1972-06-05 Releasable ski binding Expired - Lifetime US3801118A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH859371A CH536122A (fr) 1971-06-10 1971-06-10 Dispositif de sécurité pour la fixation d'une chaussure sur un ski

Publications (1)

Publication Number Publication Date
US3801118A true US3801118A (en) 1974-04-02

Family

ID=4342382

Family Applications (1)

Application Number Title Priority Date Filing Date
US00259590A Expired - Lifetime US3801118A (en) 1971-06-10 1972-06-05 Releasable ski binding

Country Status (4)

Country Link
US (1) US3801118A (de)
AT (1) AT313135B (de)
CH (1) CH536122A (de)
DE (1) DE2224409C3 (de)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3288476A (en) * 1963-06-07 1966-11-29 Ramillon Rene Securing system of the abutment type for skis
US3348854A (en) * 1965-06-04 1967-10-24 Marker Toe iron for safety ski bindings
US3603607A (en) * 1967-09-28 1971-09-07 Hannes Marker Toe iron for safety ski bindings

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1917117A1 (de) * 1969-04-02 1970-10-15 Marker Hannes Vorderbacken fuer Sicherheits-Skibindungen
FR2106655A5 (de) * 1970-09-18 1972-05-05 Carpano & Pons

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3288476A (en) * 1963-06-07 1966-11-29 Ramillon Rene Securing system of the abutment type for skis
US3348854A (en) * 1965-06-04 1967-10-24 Marker Toe iron for safety ski bindings
US3603607A (en) * 1967-09-28 1971-09-07 Hannes Marker Toe iron for safety ski bindings

Also Published As

Publication number Publication date
DE2224409A1 (de) 1972-12-28
CH536122A (fr) 1973-04-30
DE2224409B2 (de) 1980-07-24
DE2224409C3 (de) 1981-05-27
AT313135B (de) 1974-02-11

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