US3909026A - Releasable safety device for a ski boot - Google Patents

Releasable safety device for a ski boot Download PDF

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Publication number
US3909026A
US3909026A US444960A US44496074A US3909026A US 3909026 A US3909026 A US 3909026A US 444960 A US444960 A US 444960A US 44496074 A US44496074 A US 44496074A US 3909026 A US3909026 A US 3909026A
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United States
Prior art keywords
boot
holding
extremity
ramp
ramps
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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
US444960A
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English (en)
Inventor
Georges Pierre Joseph Salomon
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.)
Salomon SAS
Original Assignee
Francois Salomon et Fils SA
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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
    • A63C9/08—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
    • A63C9/084—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with heel hold-downs, e.g. swingable
    • A63C9/0841—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with heel hold-downs, e.g. swingable with a single jaw
    • 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
    • A63C9/08535—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
    • 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
    • A63C9/08557—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
    • A63C9/0805—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
    • A63C9/088—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with electronically controlled locking devices

Definitions

  • the device comprises: first holding means for holding one of the extremities of the boot, including first retaining means consisting of an abutment mounted to the ski and having a first ramp, the retaining means further including a second ramp cooperating with the second ramp; second holding means for holding the other extremity of the boot and including second retaining means cooperating with the other boot extremity; resilient means received in at least one of the holding means, the first and second ramps being slidable relative to one another, when subjected to a vertical force, along an axis corresponding substantially to the axis of the ski and against the opposing action of the resilient means; release means interposed between the resilient means and one of the holding means for disengaging the resilient means from the holding means and from the boot extremity associated with the said one holding means when the first and second ramps have slid one relative to the other a distance less than the maximum travel of these ramps.
  • the invention relates to a releasable safety fixing device for a ski boot. It is more particularly concerned with fixing devices comprising a retention member, especially a retaining clamp co-operating with a sloping face which is temporarily or permanently fixed on the boot.
  • the vertical safety results from a gradual sliding movement of the sloping faces respectively fixed on the boot and on the retaining clamp, one with respect to the other.
  • This type of fixing offers various advantages; in particular the locking device, pushing back the sole of the boot (or a sloping face added on this latter) so as to lock it with respect to a retaining clamp mounted on the ski, may be designed in such manner as to ensure the release of the fixing device in all directions, both laterally and vertically.
  • this type of fixing has disadvantages; in fact, the vertical release takes place when the extremity of the slopingface (the release nose) escapes from the retaining clamp. Now, the vertical release forces are generally very high and this results in a premature wear of the sloping faces and precisely of the release nose which is contact with the retaining clamp over a very small surface. This wear also results from the fact of the position of the sloping faces under the boot when the skier walks accidentally on rocky ground. Whatever the origin of this wear may be, it has the effect of modifying the value of the release force over a period of time.
  • this type of fixing device has another drawback.
  • the characteristics of the sloping faces or ramps, and especially their inclination with respect to the horizontal plane is imposed by the ratio of the lateral and vertical release forces which, for the safety and comfort of the skier, must be comprised within well-defined limits. For this reason, the elastic travel of the boot is also fixed and it is not possible to modify it by acting on the inclination of the sloping faces or ramps.
  • the releasable safety fixing device for a ski boot comprises:
  • a first holding means for one of the extremities of the boot that includes a retaining means constituted by a first ramp which is integral with an abutment mounted to the ski, and a second ramp which is integral with the said extremity of the boot which cooperates with the first ramp; a second holding means for the other extremity of the boot which includes another retaining means cooperating with the said other extremity of the boot; resilient means situated in one of the two holding means, the first ramp and the second ramp sliding one relative to the other under the action of a vertical force, along the longitudinal axis of the ski against the opposing action of the resilient means.
  • the fixing device of the present invention further in cludes an essential characteristic: release means interposed between the resilient means in one of the retaining means to disengage the resilient means from the retaining means and its associated boot extremity when the first and second ramps slide longitudinally one relative to the other a distance less than the maximal travel on these ramps.
  • the boot frees itself from the fixing device while the end zones of the first and second ramps are still in contact with one or the other over a surface which is much larger than it would be if the release were effected, as it is in the known art, on the ends of the said ramps.
  • the fixing device has the advantages previously referred to, especially the retaining means which holds the end of the boot opposite to the system of ramps cooperating with the retaining means may be designed in such manner as to ensure the release of the fixing device in all directions, both laterally and vertically.
  • one of the holding means includes a retaining means, a resilient means and a release means according to the invention interposed between the resilient means and the said retaining means.
  • the retaining means is composed of two levers which are articulated with respect to the second holding means.
  • Each lever includes at one end a ramp cooperating with the corresponding end of the boot and, at the other end, projections.
  • the release means interposed between the resilient means and the holding means is composed of an arm articulated at the end of a rod actuated by the resilient means and cooperating in a releasable manner with these projections of the two levers.
  • FIG. 1 is a perspective view of a first variant, showing a boot secured to the ski by means of a front stop comprising a release means according to the invention, and of a rear stop consisting of a system of two sloping ramps integral with the boot and the ski respectively;
  • FIG. 2 is a perspective view of a detail of the front stop in the example of embodiment illustrated in FIG.
  • FIG. 3 is a diagrammatic illustration of the principle of the front stop illustrated in FIG. 2, with the stop in neutral and the release means engaged;
  • FIG. 4 is a diagrammatic illustration of the principle of the front stop illustrated in FIG. 3, with the stop in the lateral-release position and the release means in the partially disengaged position;
  • FIG. 5 is a diagrammatic illustration of the principle of the front stop illustrated in FIG. 4, with the stop in the vertical-release position and the release means in the fully disengaged position;
  • FIG. 6a is a diagrammatic illustration of the principle of the variant illustrated in FIG. 1;
  • FIG. 6b is a diagrammatic illustration of the principle of another variant, the difference being the position of the release means in relation to the boot.
  • FIG. 1 is a perspective view of a first variant showing a boot secured to the ski by means of a front stop comprising a release means according to the invention, and of a rear stop consisting of a system of two sloping ramps integral with the boot and the ski respectively.
  • Boot 7 is secured to ski 8 by two retaining elements.
  • the one located at the front, and secured to the ski more particularly by screws 33, comprises jaws or ramps 21' cooperating with ramps 6 located at the front end of the boot (this front stop will be described more fully in connection with FIG. 2).
  • the other, located at the rear, consists of a first ramp integral with a catch mounted on the ski, and of a second ramp 3 integral with the rear end of the sole of of the boot.
  • Ramps 3 and 4 are sloping, ramp 3 being in the form of a frustum of a prism.
  • Ramps 3 and 4 may be of any suitable shape, more particularly that found on plate bindings marketed under the GERTSCl-I trade mark, or else, and preferably, that described in US.
  • the ramps 3 and 4 serve to move the boot forward against the action of the resilient element contained in the front stop, when the boot is subjected to a vertical load.
  • the retaining elements (jaws 21 and first ramp 4) cooperate directly with the ends of the sole of the boot; it is also possible, without departing from the scope of this present invention, to fit a plate temporarily under the skiers boot and to equip this plate with second ramps 3 and ramps 6 cooperating with first ramps 4 of the rear retaining element and jaws 21 of the front stop.
  • FIG. 2 is a perspective view of a detail of the front stop in the variant illustrated in FIG. 1.
  • the front end of the boot (not shown in FIG. 2) cooperates with two ramps orjaws 21 21" located at the ends of two levers 22, 22" cranked substantially at right angles and pivoting about two vertical axes 23, 23 which are stationary in relation to the body of the front stop.
  • Projections 25', 25 are integral with the outer ends of each of cranked lever 22', 22", the projections co-operating with ends 25, 26 of a lever or arm 27 which pivots centrally about a vertical axis 28.
  • This axis is integral with the end of a rod 29 passing through a resilient element 30 consisting of a coil spring.
  • this resilient element bears against body 32 of the retaining element which is integral with the ski, being attached thereto by two screws 33, while the other end of the resilient element bears against a threaded plug 31 screwed to the free end of rod 29; the tension of the spring, and the force applied thereby, are adjusted by screwing up or unscrewing threaded plug 31.
  • FIGS. 3, 4 illustrate diagrammatically the front stop shown in FIG. 2.
  • FIG. 3 the front stop is shown at rest, with boot in position in the binding.
  • the figure shows levers 22 equipped with ramps orjaws 21 and projections pivoting about axes 23 which are fixed in relation to body 32 of the front-stop retaining element; also shown is arm 27, ends 26 thereof co-operating with projections 25; arm 27 pivots centrally about an axis 28 mounted at the end of a rod actuated by resilient element 30.
  • the release means according to the invention consists of arm 27 and projections 25; this release means is interposed between resilient element and the re taining element consisting of ramps or jaws 21; in the position shown in FIG. 3, it transmits to ramps or jaws 21 the force exerted by resilient element 30.
  • stops 34 which are stationary in relation to body 32 and are designed to limit the travel of levers 22 and to keep the levers apart when there is no boot in the binding; these stops 34 may be in any known form; more particularly they may be simply shoulders integral with body 32 of the front stop.
  • FIG. 4 illustrates the operation of the front stop under lateral loading; the elements described in connection with FIGS. 2 and 3 will be recognized here again; indices or have been used (as in FIG. 2) for each half-portion of the stop according to the invention, and for the elements of which it consists.
  • the force exerted by the boot is directed transversely of the ski in the direction of arrow 40.
  • FIG. 5 shows how the front stop reacts to a vertical load.
  • the elements already described in connection with FIGS. 2, 3 and 4 will be recognized, since they bear the same reference numerals.
  • ramps 3, 4 (FIG. 1) are still in contact. This result is obtained by adjusting the release travel of the release means (projections 25, 25" and arm 27) in a mariner such that it is less than the longitudinal travel imposed by ramps 3, 4. As a result of this, ramp 3, located at the rear end of the boot, finally disengages itself without friction from ramp 4 which is integral with fixed catch 9.
  • the release means interposed between the resilient element and the retaining element disconnects the resilient element from the retaining element and from the boot with which the retaining element co-operates when first and second ramps 4 and 3 have slid longitudinally, in relation to each other, over a distance of less than the maximal travel of the ramps.
  • ramps and/or release means are designed in a manner such that the vertical-release load, in the event of forward falls, has the desired ratio, for example three times the load for lateral release.
  • the release means it is not absolutely necessary for the release means to be a part of the front stop. It could also be incorporated into the rear stop.
  • FIG. 6a is a diagrammatic illustration of the principle of the variant shown in FIGS. 1 and 2, while FIG. 6b is a diagrammatic illustration of the principle of another variant differing from the former in that the release means is arranged in the rear stop.
  • resilient element 1 is represented by a zig-zag indicating a spring
  • release means 2 is represented by a rectangle containing a cross
  • first and second ramps 4 and 3 are represented by sloping lines
  • the parts which are fixed in relation to the ski, one at the rear 9 and one at the front 10, are presented by hatched rectangles with vertical lines indicating the screw or screws by means of which the parts are secured to the ski.
  • the invention relates essentially to a release means interposed between a resilient element and an element retaining one end of the boot, the release means disconnecting the resilient element from the said retaining element when the first and second ramps have slid, in relation to each other, over a distance of less than the maximal travel of the ramps.
  • the invention may be considered as the combination of a first binding releasable by the advance of the boot and of a second binding which brings about the advance by means of a system of sloping ramps on the ski, when the boot is subjected to a -vertical load (a forward or a backward fall, depending on the location of the first and second ramps), the release travel of the first binding being less than the longitudinal travel imposed by the ramp system.
  • a releasable safety fixing device for a ski boot comprising:
  • first holding means for holding one of the extremities of said boot, said first holding means including:
  • first retaining means consisting of an abutment mounted to a ski, said first abutment having a first ramp;
  • a second ramp mounted to said boot extremity and co-operating with said first ramp
  • second holding means for holding the other extremity of said boot including second retaining means cooperating with said other boot extremity;
  • first and second ramps being slidable relative to one another, when subjected to a vertical force, along an axis corresponding substantially to the axis of said ski and against the opposing action of said resilient means;
  • release means interposed between said resilient means and one of said holding means for disengaging said resilient means from said one holding means and from said boot extremity associated with said one holding means when said first and second ramps have slid one relative to the other a distance less than the maximum travel of said ramps.
  • a release safety fixing device for a ski boot comprising:
  • first holding means for holding one of the extremities of said boot, said holding means including an abutment mounted to a ski and provided with a first inclined ramp; said first inclined ramp co-operating with a second inclined ramp mounted to said boot extremity;
  • second holding means for holding the other extremity of said boot, said second holding means including retaining means co-operating with said other boot extremity,
  • resilient means producing an opposing action against which said first and second ramps slide one relative to the other along an axis corresponding substantially to the axis of said ski when subjected to a vertical force
  • release means located between said resilient means and said retaining means for disengaging said resilient means from said retaining means and from the boot extremity associated with said retaining means when said second ramp has slid with respect to said first ramp a distance less than the maximum travel of said ramps.
  • said retaining means consist of two levers articulated relative to said second holding means, each lever including second holding means and which is perpendicular to the plane of the ski;
  • said arm is rotatably movable, at an intermediate point thereof, about an axis situated at said one end of said rod;
  • said arm is further pivotable about one of its extremities resting against said projections when said boot is laterally urged.

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US444960A 1973-02-23 1974-02-22 Releasable safety device for a ski boot Expired - Lifetime US3909026A (en)

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FR7306491A FR2218912B1 (ko) 1973-02-23 1973-02-23

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4088343A (en) * 1975-12-12 1978-05-09 Tmc Corporation Front jaw
US4728117A (en) * 1985-11-11 1988-03-01 Marker Deutschland Gmbh Toe iron for safety ski bindings
DE3630552A1 (de) * 1986-09-08 1988-03-10 Marker Deutschland Gmbh Vorderbacken fuer sicherheits-skibindungen
US4872698A (en) * 1987-02-03 1989-10-10 Salomon, S.A. Ski brake associated with a ski binding
US5799957A (en) * 1994-06-06 1998-09-01 Shimano, Inc. Snowboard binding
US6186519B1 (en) * 1997-09-25 2001-02-13 Benetton Sportsystem S.P.A. Device for connecting a shoe to a sports implement
US20130207356A1 (en) * 2012-02-07 2013-08-15 Fritz Barthel Front unit for a sliding board binding, touring binding and ski-jumping binding
US20130300089A1 (en) * 2012-05-11 2013-11-14 Fritz Barthel Front unit of a sliding board binding and sliding board binding
US9597578B2 (en) * 2008-04-03 2017-03-21 G3 Genuine Guide Gear Inc. Toe unit for alpine touring binding

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013204060B4 (de) * 2013-03-08 2015-01-22 Micado Cad-Solutions Gmbh Vorderbacken für eine Skitourenbindung

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2705150A (en) * 1950-10-10 1955-03-29 Walter H Hansen Safety ski binding
US2854242A (en) * 1956-10-05 1958-09-30 Frank S Pratt Release type ski binding
US3095210A (en) * 1960-11-02 1963-06-25 Partridge S Models Ltd Ski bindings
US3410568A (en) * 1966-06-06 1968-11-12 Philip K. Wiley Tension adjustable releasable ski binding
US3584891A (en) * 1969-06-27 1971-06-15 Joseph N Khazzam Ski binding releasable toe clamp
US3638959A (en) * 1969-09-05 1972-02-01 Henri Reuge Toe stop member for ski safety bindings
US3716248A (en) * 1970-07-29 1973-02-13 P Wiley Tension adjustable releasable ski binding and method
US3730543A (en) * 1971-01-08 1973-05-01 J Edmund Safety ski binding

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2705150A (en) * 1950-10-10 1955-03-29 Walter H Hansen Safety ski binding
US2854242A (en) * 1956-10-05 1958-09-30 Frank S Pratt Release type ski binding
US3095210A (en) * 1960-11-02 1963-06-25 Partridge S Models Ltd Ski bindings
US3410568A (en) * 1966-06-06 1968-11-12 Philip K. Wiley Tension adjustable releasable ski binding
US3584891A (en) * 1969-06-27 1971-06-15 Joseph N Khazzam Ski binding releasable toe clamp
US3638959A (en) * 1969-09-05 1972-02-01 Henri Reuge Toe stop member for ski safety bindings
US3716248A (en) * 1970-07-29 1973-02-13 P Wiley Tension adjustable releasable ski binding and method
US3730543A (en) * 1971-01-08 1973-05-01 J Edmund Safety ski binding

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4088343A (en) * 1975-12-12 1978-05-09 Tmc Corporation Front jaw
US4728117A (en) * 1985-11-11 1988-03-01 Marker Deutschland Gmbh Toe iron for safety ski bindings
DE3630552A1 (de) * 1986-09-08 1988-03-10 Marker Deutschland Gmbh Vorderbacken fuer sicherheits-skibindungen
US4872698A (en) * 1987-02-03 1989-10-10 Salomon, S.A. Ski brake associated with a ski binding
US6357783B1 (en) 1994-06-06 2002-03-19 Shimano, Inc. Snowboard binding
US5971420A (en) * 1994-06-06 1999-10-26 Shimano, Inc. Snowboard binding
US6164682A (en) * 1994-06-06 2000-12-26 Shimano, Inc. Snowboard binding
US5799957A (en) * 1994-06-06 1998-09-01 Shimano, Inc. Snowboard binding
US6824159B2 (en) 1994-06-06 2004-11-30 Shimano, Inc. Snowboard binding
US20050082791A1 (en) * 1994-06-06 2005-04-21 Shinpei Okajima Snowboard binding
US7073814B2 (en) 1994-06-06 2006-07-11 Shimano, Inc. Snowboard binding
US6186519B1 (en) * 1997-09-25 2001-02-13 Benetton Sportsystem S.P.A. Device for connecting a shoe to a sports implement
US9597578B2 (en) * 2008-04-03 2017-03-21 G3 Genuine Guide Gear Inc. Toe unit for alpine touring binding
US20130207356A1 (en) * 2012-02-07 2013-08-15 Fritz Barthel Front unit for a sliding board binding, touring binding and ski-jumping binding
US20130300089A1 (en) * 2012-05-11 2013-11-14 Fritz Barthel Front unit of a sliding board binding and sliding board binding
US9120002B2 (en) * 2012-05-11 2015-09-01 Fritz Barthel Front unit of a sliding board binding and sliding board binding

Also Published As

Publication number Publication date
FR2218912A1 (ko) 1974-09-20
FR2218912B1 (ko) 1976-09-10

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