US3778073A - Ski binding - Google Patents

Ski binding Download PDF

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Publication number
US3778073A
US3778073A US00101531A US3778073DA US3778073A US 3778073 A US3778073 A US 3778073A US 00101531 A US00101531 A US 00101531A US 3778073D A US3778073D A US 3778073DA US 3778073 A US3778073 A US 3778073A
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United States
Prior art keywords
jaw
lever
base
movable member
ski
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Expired - Lifetime
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US00101531A
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English (en)
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G Salomon
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Individual
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Individual
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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
    • A63C9/084—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with heel hold-downs, e.g. swingable
    • A63C9/0847—Details of the manual 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
    • A63C9/084—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
    • A63C9/0842—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 the jaw pivoting on the body or base about a transverse 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
    • A63C9/084—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with heel hold-downs, e.g. swingable
    • A63C9/0846—Details of the release or step-in mechanism
    • 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

  • ABSTRACT The disclosure relates to a safety binding for ski boots consisting of a jaw pivotally mounted on the base and adapted to be alternately raised and lowered relatively to the base, a lever pivotally mounted on the base and adapted to be vertically set in two positions, a locking system disposed between two elements of a kinematic chain that includes the base, the lever and a movable member connected to the lever, and means operable for unlocking the locking system;
  • a ski binding in accordance with the present invention has the advantage of doing away with the continuous pulling effort by the skier during clamping and unclamping of the ski.
  • a safety harness has been proposed, for example according to French Patent No. 1,529,161, comprising a pivotable clamp upon a base plate in such a manner that the former may be alternately raised or lowered in relation to the latter,
  • said clamp being retained in the lowered position by a movable member pressing against same, in a convenient direction, by a spring resting upon the base plate,
  • an actuating lever pivotally joined to the base plate, in such a manner as to enable its vertical movement between two positions
  • said actuating lever being connected to a movable member in such a manner that in one of the positions of the actuating lever the movable member should forcibly press upon the clamp in order to retain same in the lowered position
  • the movable member in other positions of the actuating lever the movable member should give way under the action of its spring in such a manner as to release the clamp and to permit its raising.
  • a more specific embodiment of this known harness is in the form of a type of horizontal-line holder wherein the axis is vertically set on the ski; a vertical plate being able to move between the clamping arms of this holder, Le. a vertical plate that may be raised and which supports the clamp and this plate, comprising below these movable arms an extra thickness which does not allow its raising unless these movable arms are sufficiently separated from each other; the two activating arms of the holder being joined to each other by two small pivotal activating levers upon which the safety strap is fastened.
  • the advantage of this embodiment is that the clamp does not raise up when the strap is pulled and the boot remains well positioned upon the ski; in such a manner that the pull effected upon the strap with a favourable play of the lever arms is 'simply set against the spring which pulls the movable arms of the holder and in no way is it set against the weight of the skier when the heel rests upon a re-clamping plate associated with the clamp.
  • the skier has to pull upon his strap and thereby upon his ski while he does not have his boot sufficiently raised above his ski which is pulled in the same direction; while this not at all convenient on flat ground, it becomes a difficult exercise on the slopes.
  • the first object of the present invention is to overcome these inconveniences and to do away with the continuous pulling effort by the skier during removal or mounting of the ski; another corollary object being the reduction of the manual effort required during the mounting of the ski.
  • a system of locks is interposed between two of the pieces of the kinematic chain constituted by the base plate, the activating lever and the movable member in such a manner as to immobilise this movable member with respect to the base plate when this has been drawn back by one predetermined amplitude under the action of the activating lever in view of releasing the clamp, among other things means are being provided which may be operated by the user for the release of the locks and to abandon the movable member to'the action of its spring when the clamp is positioned opposite said movable member.
  • the skier may easily remove his skis by raising the clamp with the heel of his boot, disengage same and re-engage same for putting-on the skis and to release the locking mechanism, this last operation being carried out with an effort which is not opposed anymore by the return spring of the clamp but only by the strength of the locking device, this being substantially less.
  • this improved harness may be further improved because, in the same way as the known harness, when the holder is open it has the drawback that the clamp is altogether free to swing to and fro, insofar as its adjusting system is locked in the open position.
  • the released clamp follows the heel over the course of its removal motion and then it is left to itself in such a manner that it will not be always in adequate position for re-engagement; therefore it has to be raised by hand or to be provided with a raising spring which does not have to be powerful but which, against the effect of the main spring, will elastically withdraw the clamp into normal functioning prior to releasing the safety.
  • One object of the present invention is to free the skier from this cumbersome operation and to effect the release of the mobile member taking into account the operations of the jaw during each cycle of clamping and unclamping whereby the ski may be secured without the skier having to carry out a separate release operation, the latter being carried out during the clamping-unclamping operations.
  • the releasing means which are operated by the user are controlled by a member which may be associated with the jaw but which must be necessarily operated by the sole during clamping or unclamping operations.
  • the release controlling member consists of a pedal mounted on the ski under the sole and separated from the jaw the release operation is carried out at the end of the clamping operation, that is when the sole comes into contact with the pedal and with the ski, means being evidently provided for the pedal to be reset and lifted during the unclamping so as to be ready for the next clamping operation by the sole.
  • the release may take place when the jaw rests in the lower position at the end of the clamping operation and it is sufficient to provide a member engaged by the jaw immediately before the jaw reaches this position.
  • the release may occur at any time before,
  • the jaw be temporarily retained in the upper position against the return action of the spring in order to be ready to receive the sole during the clamping operation.
  • the prior art provides bindings wherein the unclamping is controlled by a pull on the safety strap and wherein the jaws are provided with pedals allowing an automatic clamping operation.
  • certain levers may abut the assembly consisting of the lifting jaw and its associated mobile member which is urged by the return spring; this prevents the operating lever from being lifted up when the jaw is raised but the opposite operation has not yet been realized in these bindings.
  • the invention is concerned with a structure which provides a particularly compact binding and which consists in pivoting the liftable jaw and the operating lever about the same axis.
  • FIG. 1 is a side longitudinal cross-section view of a ski binding in accordance with the present invention
  • FIG. 1A is a perspective view, partly broken away, of the front portion of the ski binding shown in FIG. 1, illustrating the locked position;
  • FIG. 1B is a view similar to FIG. LA, but illustrating the ski binding in the unlocked position
  • FIG. 2 is an enlarged partial view of FIG. 1 in the pivoting area of the jaw, without the piston;
  • FIGS. 3 and 4 are side longitudinal cross-section views similar to that of FIG. 1 but illustrating two alternate embodiments of the invention
  • FIG. 3A is a perspective view, partly broken away, of the ski binding of FIG. 3 shown in the unlocked position, while FIG. 4A is a transverse cross-section of the ski binding shown in FIG. 4;
  • FIG. 5 is an enlarged partial view of the pivotal area of the ski binding shown in FIG. 4;
  • FIGS. 6 and 7 are enlarged cross-sectional views similar to that of FIGS. 4 and 5 but illustrate another alternate embodiment of the present invention.
  • FIG. 6A is a transverse cross-section of the ski binding shown in FIG. 6.
  • a ski binding consisting essentially of a body forming a base and fixed on a ski 32 by screws (not shown).
  • the base 7 is represented in the shape of an oblong shank open on its left-hand face by a cylindrical longitudinal channel 34 extended by a threaded aperture 37 opening on the right-hand side and in which a threaded cap 5 may be received; a spring 3 is positioned against the cap 5 and actuates a piston 4 sliding in the cylidrical channel 34, screwing cap 5 will adjust the thrust of spring 3.
  • the left-hand front end of the piston 4 has an upper portion shaped in the form of a hemispherical finger which abuts against ramp 9 of a jaw-carrying assembly.
  • This assembly comprises the jaw 1 connecting a pair of flanges 39 jointly mounted for pivotal movement about a shaft 6 engaged in the upper part of base 7.
  • This jawcarrying assembly further includes a clamping jaw 20 pivotal about an axis 25 on small flanges provided at the lower front part of the assembly.
  • the assembly is upwardly urged in a direction opposite to that indicated by arrow 24, by a torsion spring 8 (FIG. 2) having one end secured in the transversal channel of shaft 6 and the other end mounted on a catch 19 provided on the base 7.
  • the profile of ramp 9 is selected so that the hemispherical extremity of piston 4 urges the jaw in the direction of arrow 24 under the action of a longitudinal thrust received by spring 3.
  • the ramp 9, which is moved near shaft 6 in its lower portion up to its elbow 10, will release the piston 4 towards the right-hand side against the spring action.
  • jaw 1 is upwardly urged with a separation such that the hemispherical end of piston 4 exceeds elbow 10, this end then contacts another ramp l1, centered on shaft 6 and terminated at its lower part by an abutment 21. Piston 4 is then moved towards the right-hand side in the position 4' against the action of spring 3. This is what occurs upon a fall and upon extreme lifting of the jaw.
  • An elbowed lever 2 is pivoted about an axis 22 secured at its lower extremity and engaged in a transversal channel in base 7.
  • the lever is a U-shaped brace pivoted relative to the base about a pair of symmetrical axis 22 positioned forwardly and rearwardly on the base 7 shown in the drawmg.
  • Lever 2 is upwardly urged in the direction opposite to that of arrow by means of a torsion spring 23 having one end engaged in the transversal channel of axis 22 and the other end in contact with a catch 39' on the base.
  • This lever includes at its free end a roller 35 serving to facilitate the entry along arrow 38 and the pivoted movement of the pointed extremity 40 of the ski pole in a hollowed portion 36 adjacent the roller.
  • Lever 2 further includes at mid-height a transversal catch 16 which is received in a circular slot (FIG. 2) provided in the sides of base 7 during the pivotal movement of lever 2.
  • Piston 4 is provided at its upper part with a cylindrical chamber 12 in which a small piston 13 located in a small cylinder provided in the upper wall of channel 34 may be introduced when piston 4 is urged toward the right-hand side. Piston 13 which is recessed in the wall of channel 34, is nevertheless urged by a small spring 14 to extend beyond the adjacent surface of the wall.
  • the body 7 is provided with a groove in which is pivoted about an axis 29 a small inset lever 28 having one of its arms 27 cooperating in abutment with the rear portion 26 of jaw 1 and having the other arm 30 received in a longitudinal groove 31 positioned in the upper portion of piston 4 and maintains the small piston 13 in a recessed position when the edge 26 of the jaw l in its lowered position is pushed on the arm 27.
  • the movable member which consists of a piston 46 similar to piston 4 as far as the elements cooperating with ramps 9 and 11 are concerned, but which comprises:
  • a ratchet system consisting of a notch 49 designed to cooperate with a tooth 50 provided in body 48;
  • the oblique portion 62 of aperture 57 may, on the other hand, be more or less inclined so as to favour this ratchet mechanism.
  • the skier may then release his pull on lever 44 since, from that time, the jaw-carrying assembly may be freely. lifted either by raising the boot of the skier or by a lifting spring identical to spring 8.
  • the unlocking of piston 46 is carried out as follows: the radius of ramp 1! is determined so as to be slightly less than that of a circle centered on axis 6 and tangent to the front hemispherical extremity of piston 46 when the latter is ratcheted. Under these conditions, when the unclamping is finished, the elbow l strikes the lower portion of this hemispherical extremity, the movable piston 46 tends to pivot clockwise and to be slightly pushed towards the right-hand side, the pivoting being obtained readily by the oblique acting area 64 of spring 3 on piston 46.
  • ramp [1 acts, after unlocking of ratchet 49-50, as a lock which replaces and relays this notch so that piston 46 may be held and that this locking transfer allows the positioning of the return members of the jaw-carrying assembly exactly in the same position as they were at the time unclamping upon release of the security binding.
  • the locking mechanism securing the movable piston after its retraction constrained by the lever is always interposed between the movable piston and the base.
  • the jaw-carrying assembly is provided in a slightly different form and has a jaw 74 provided with a ramp 75 urging the jaw towards the bottom under the longitudinal action of the movable piston 84.
  • the lever is also mounted on axis 82 but is joined to this axis such that a torsion spring 97 (FIG. 5), having one of its ends engaged in a channel which is transverse to the axis and having the other end resting against a catch of the base, urges lever 79 in the direction of arrow 85.
  • a torsion spring 97 (FIG. 5)
  • a catch 90 similar to catches 45 and 16, is mounted on lever 79 and pivots in the circular opening 52 provided in body 51.
  • This piston is provided, in its upper portion, with a groove 91 extending towards the right through a ramp 92 which cooperates with catch in order to exert on the latter a horizontal component reaction directed to the left.
  • This ramp 92 extends upwardly, after an elbow 93, into a second ramp 94, which cooperates with catch 90 (when the latter is displaced toward the right in the circular opening 52) so as to exert on it a horizontal component force, which is null or in any event directed towards the right.
  • the release of the lock is always provided by the jaw-carrying assembly whether it is at the end of the reclamping or at the end of the declamping.
  • Ramps 11 or 77 are provided to retain the movable piston urged by the return spring 3. It is not, however, necessary that the release be constrained by the jaw itself and FIG. 3 shows a manner in which a binding may be provided in which the release is effected by the sole of the boot.
  • FIG. 6 there are shown elements quite similar to those already illustrated in FIGS. 1 to 5 but with different reference numbers.
  • Body 106 supports the jaw-carrying assembly which is pivoted about on axis 112 and which is lifted in the direction indicated by arrow 111.
  • a lever 108 is pivoted about axis 112 and is urged through a torsion spring 126 (FIG. 7) mounted on this axis in the direction opposite to that of arrow 109 so as to be brought back in the position shown in the Figure; lever 108 also includes a catch 113 which moves in a circular opening 120 provided in the body and which is located in another opening 114 provided inpiston 100.
  • Piston 100 further includes a counter piston connected to the latter by means of parallelogram-shaped rods 102 and on which is exerted the thrust of the main return spring 99. This counter piston slides in its forward portion on a plate 105 secured to the base. When this counter piston is moved rearwardly towards the right hand side in the direction of arrow 104 above edge 107 of plate 105 it may rest on one of the springactuated arms of a pedal 102, the other arm of which is located in that portion receiving the boot.
  • the locking of the movable pistons may be carried out by all kinds of locks, whether spring-actuated, ratchets or locks of the type similar to circular ramps 11 or 77, the essential feature being that these locks will be disengaged either by backward movement in case of ratchets, or bt pivotal movement in case of circular ramps.
  • the locks may be connected one to another in a cycle as shown in FIGS. 3 and 4 where the final release action is carried out on the last catch in action.
  • a safety binding for ski-boots comprising: a base fixed on a ski; a jaw pivotally mounted'on said base and adapted to be alternately raised and lowered relative to said base; said jaw having a front face which is arranged to be in contact with said ski-boot and a rear face opposite to said ski-boot; a movable member slidably mounted on said base for moving lingitudinally of said ski and having front and rear ends, said front end being in abutment against said rear face of said jaw and said rear end receiving one end of a spring, the opposite end of which is applied against a part of said base; a lever pivotally mounted on said base and adapted to be vertically moved between two positions; said lever being connected to said movable member whereby:
  • said lever moves said movable member against the action of said spring to thereby free the jaw and permit said jaw to be lifted; said base, said movable member, and said lever being three elements adapted to be in displacement relative to one another; a first locking means provided on one of said elements in relative displacement; a second locking means provided on another of said elements in relative displacement; said first and second locking means coacting for securing said movable member relative to said base when said movable member is moved away from said jaw of a predetermined amplitude under the action of said lever; and unlocking means coacting with a part of the binding in contact with the boot for automatically unlocking said first and second locking means and to abandon said movable member to the action of said spring when said rear face of said jaw is facing said front end of said movable member.
  • a ski binding as claimed in claim 1 wherein said jaw is pivotally mounted on a transversal axis of said base and wherein said lever is pivotally mounted on said transversal axis.

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US00101531A 1970-06-01 1970-12-28 Ski binding Expired - Lifetime US3778073A (en)

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FR7019921A FR2093056A5 (de) 1970-06-01 1970-06-01

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3920256A (en) * 1973-08-09 1975-11-18 Ver Baubeschlag Gretsch Co Safety ski binding
US3933363A (en) * 1973-10-04 1976-01-20 Gertsch Ag Safety ski binding
US3964757A (en) * 1973-08-09 1976-06-22 Vereinigte Baubeschlagfabriken Gretsch & Co. Gmbh Heel hold-down mechanism for safety ski bindings
US4066277A (en) * 1976-07-19 1978-01-03 Hope Co., Ltd. Ski boot heel binding having improved unlocking device
US4103930A (en) * 1976-02-18 1978-08-01 Tmc Corporation Heel holder for ski bindings
US4183549A (en) * 1976-01-16 1980-01-15 Etablissements Francois Salomon Et Fils Safety binding with manual release
US4336955A (en) * 1978-02-06 1982-06-29 Hannes Marker Safety ski binding
US4552378A (en) * 1983-03-11 1985-11-12 Tmc Corporation Safety ski binding
US4625991A (en) * 1984-05-04 1986-12-02 Tmc Corporation Heel holder
US5810381A (en) * 1995-08-02 1998-09-22 Marker Deutschland Gmbh Sole-retaining or boot-retaining system for ski bindings, snowboard bindings and the like

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3291500A (en) * 1964-04-14 1966-12-13 Ver Baubeschlag Gretsch Co Heel-holding device for ski safety binding
US3580597A (en) * 1968-03-22 1971-05-25 Jean Joseph Alfred Beyl Heel downholder for safety ski bindings
US3604720A (en) * 1968-03-29 1971-09-14 Reuge Sa Safety attachment for skis

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3291500A (en) * 1964-04-14 1966-12-13 Ver Baubeschlag Gretsch Co Heel-holding device for ski safety binding
US3580597A (en) * 1968-03-22 1971-05-25 Jean Joseph Alfred Beyl Heel downholder for safety ski bindings
US3604720A (en) * 1968-03-29 1971-09-14 Reuge Sa Safety attachment for skis

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3920256A (en) * 1973-08-09 1975-11-18 Ver Baubeschlag Gretsch Co Safety ski binding
US3964757A (en) * 1973-08-09 1976-06-22 Vereinigte Baubeschlagfabriken Gretsch & Co. Gmbh Heel hold-down mechanism for safety ski bindings
US3933363A (en) * 1973-10-04 1976-01-20 Gertsch Ag Safety ski binding
US4183549A (en) * 1976-01-16 1980-01-15 Etablissements Francois Salomon Et Fils Safety binding with manual release
US4103930A (en) * 1976-02-18 1978-08-01 Tmc Corporation Heel holder for ski bindings
US4066277A (en) * 1976-07-19 1978-01-03 Hope Co., Ltd. Ski boot heel binding having improved unlocking device
US4336955A (en) * 1978-02-06 1982-06-29 Hannes Marker Safety ski binding
US4552378A (en) * 1983-03-11 1985-11-12 Tmc Corporation Safety ski binding
US4625991A (en) * 1984-05-04 1986-12-02 Tmc Corporation Heel holder
US5810381A (en) * 1995-08-02 1998-09-22 Marker Deutschland Gmbh Sole-retaining or boot-retaining system for ski bindings, snowboard bindings and the like

Also Published As

Publication number Publication date
FR2093056A5 (de) 1972-01-28

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