US3856317A - Safety ski binding - Google Patents

Safety ski binding Download PDF

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Publication number
US3856317A
US3856317A US00360782A US36078273A US3856317A US 3856317 A US3856317 A US 3856317A US 00360782 A US00360782 A US 00360782A US 36078273 A US36078273 A US 36078273A US 3856317 A US3856317 A US 3856317A
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US
United States
Prior art keywords
lever
piece
boot
frame
profiled
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
US00360782A
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English (en)
Inventor
B Sentou
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.)
Carpano and Pons SA
Original Assignee
Carpano and Pons SA
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 Carpano and Pons SA filed Critical Carpano and Pons SA
Application granted granted Critical
Publication of US3856317A publication Critical patent/US3856317A/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
    • A63C9/084—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

  • a ski safety heel binding includes a frame on which a boot-heel holding jaw is pivotally mounted.- A cam profiled lever is pivotally mounted on and suspended from the pivoted jaw, a forward'profiled surface of ':this lever being pressed against a fixed guide roller by a compression spring which presses a movable pieceagainst a straight rear surface of the lever, to either hold the jaw down with elastic play in a boot locking I position, or hold the jaw in a raised boot-releasing position. A traction or pressure operated lever enables said piece to be disengaged from the cam-profiled lever, for voluntary release of the binding.
  • a known type of ski safety heel binding adapted to allow the release of a locked boot when it is subjected to a lifting force exceeding a given value, includes a frame on which a boot-heel holding member or jaw is pivotally mounted about an axis parallel to the upper face of the ski and perpendicular to the longitudinal axis of the ski, and elastic means cooperating with means for locking said boot-heel holding member, which is held down against the upper face of the boot sole in a closed position of the binding.
  • An object of the invention is to provide a ski binding of the general type set out above, and which can be set by a single adjustment,.namely of the force of the said elastic means, without a need to carry out a separate adjustment as a function of the thickness of the boot sole.
  • a subsidiary object is to ensure that the voluntary release of the binding can be carried out in two phases, a first phase during which the binding is released and during which the skier can leave the boot resting on the ski, and a second phase during which the skier can release the boot by lifting same, and during which the raising of the boot-sole holding member or jaw requires .no or pracitcally no effort.
  • a further object is to ensure that following voluntary or accidental release of the binding, the boot-sole holding member or jaw remains in an open position, ready for r e-insertion of a boot, and can bemoved back to a boot-holding position by exerting a very slight downward pressure by means of the boot heel.
  • the invention accordingly provides a ski safety heel binding comprising a frame including means defining a plane face adapted to be fitted on the upper surface of a ski, with a principal axis of said frame disposed along the longitudinal axis of the ski.
  • a boot sole holding member is pivotally mounted on said frame about a first axis parallel to said plane'face and perpendicular to said principal axis, and a lever is'pivotally mounted on said member about a second axis parallel to and spaced apart from said first axis, said lever having opposed first and second faces.
  • Elastic means are provided for urging a piece which is movably mounted on said frame against said first face of said lever to apply said second face of said lever against guide means fixed relative to said frame, and said second surface of said lever has means defining a cam-like profile for cooperating with said guide means to hold said member down in a first boot-sole engaging position under the action of said elastic means while allowing movement of said member to a second boot-sole releasing position when said member is subjected to a raising force exceeding a given value.
  • the said guide means can be formed by a roller or a low friction surface fixed to the frame and, preferably, said cam like profile of said second surface of said lever includes a portion cooperating with said guide means to maintain said member in its second position under the action of said elastic means.
  • the binding comprises release means for enabling voluntary movement of said member to its second position, said release means including a second lever pivotally mounted on said frame about a third axis parallel to said second axis.
  • the second lever includes a part which engages with play with said movable piece, and means for enabling it to be surface on saidpiece for engaging with cooperating profiled stop means on said frame for releasably holding said piece in its second position under the action of said elastic means.
  • the cam-profiled lever can be freed from the action of the elastic means, and the boot-sole holding member can be freely upwardly moved to relase the boot, simply by lifting up the boot.
  • the boot soleholding member includes means for disengaging said second profiled surface of said piece from said stop means when said member is moved into its second position to allow said elastic means to move said piece into its first position, said cam-like profile of said first lever including a portion cooperating with said guide means to maintain said member in its second position.
  • the cam-profiled lever also preferably includes means defining a projection for cooperating with a boot sole to move said member from its second to its first position.
  • the cam-like profile of said lever preferably includes adjacent first and second portions of said second surface, said first portion being inclined relative to the direction along which said elastic means urges said piece and said second portion being disposed substantially perpendicular to said direction along which said elastic means urges said piece, said first portion cooperating with said guide means to maintain said member in its first position, and said second portion cooperating with said guide means to maintain said member in its second position.
  • a very low downward pressure exerted by the boot heel is sufficient to move the cam-profiled lever downwardly until the sloping part of the profile cooperates with the guide means, whereupon the spring means ensures further downward movement of the cam-like lever and the boot-sole holding member into its first, boot-sole engaging position.
  • the second lever of said release means can be actuated by an upward pivoting movement and, in this case, said means for enabling manual movement of said second lever include a manually pullable flexible strap attached to said second lever.
  • the second lever can be actuated by a downward pivoting movement and, in this case, said means for enabling manual movement of said second lever include pressure-actuable means for engaging with the tip of a ski pole.
  • FIG. 1 is a schematic axial cross-sectional view showing the basic components of a first embodiment, of binding secured on a ski with the binding in a normal. operative position holding a boot in place;
  • FIG. 2 is a schematic view showing the position of several of the parts of the binding of FIG. 1 but with the binding holding a boot having a thicker sole than that of FIG. 1;
  • FIG. 3 shows the first embodiment of binding in a voluntary release position, before removal of the boot
  • the frame 1 is only partially shown, includes an axial bore 3 receiving a compression spring 4 and a hollow mobile piece 5 slidably mounted with play within the bore 3.
  • the piece 5 includes an open tubular end engaging about a free end of spring 4, the other end of spring 4 being fixed to a screw 28 threadably engaging a tapped end part of bore 3,this screw 28 serving to adjust the force of compression of spring 4, and consequently, the limiting force at which the binding re-
  • the front face of lever 18 also includes a slightly recessed profiled part 23 which is joined to the slope by a part 30 disposed substantially perpendicular to the axis of spring 4.
  • the shaft 10 also serves as pivoting axis for a lever 12 which includes at one end a part 27 engaged with play within the hollow mobile piece 5, between its wall 6 and the front wall of beak 7.
  • the lever 12 can be actuated by an upwardly exerted traction, and for this purpose includes at its reanwardlyprotruding free end 26 a flexible strap by means of which the lever 12 can be manually pulled upwards.
  • the piece 5 inlcudes a wall 6 against which spring 4 bears, this wall 6 having a first profiled surface on its face oppositethat against which the spring 4 bears, and a hollow open-sided beak 7 including a recessed second profiled surface 8 on an upper part thereof and a rounded upper front edge 9.
  • the frame I carries towards its forward end a fixed transverse shaft 11 carrying a freely rotatable roller 13, and a transverse shaft 10 fixed above the piece 5, both of these shafts being disposed parallel to the upper face of ski 2 and perpendicular to the longitudinal axis of the ski.
  • the shaft 10 serves as a pivoting axis for a lever 14 having a free end 15 which serves as a member or jaw adapted to hold the sole 16 of a boot in place.
  • the lever 14, which is freely mounted about shaft 17, carries midway therealong a shaft 17, parallel to shaft 10, about which another lever 18 is freely pivotally mounted. In the proximity of its shaft 10, the lever 14 has a protruding edge 24 (FIG. 3).
  • the lever 18 includes a straight rear edge 19 and a ca m-profiled front edge including an inclined portion 20.
  • the rounded edge 9 of piece 5 is pressed against edge 19 which causes the slope 20 to contact roller 13.
  • the roller 13 could be replaced by a fixed low-friciton surface.
  • the lever 18 terminates at its lower end with a forwardly protruding foot or pedal 21 which is adapted in use to lie under the rear edge of the boot sole 16 which rests on a supporting part 22 of the frame. In the boot-holding position of the binding, the exact position of the roller 13 along the slope 20 of lever 18 is defined only by the thickness of sole 16. In effect, when, as is shown in FIG. 2, the sole 16 is thicker than that shown in FIG.
  • FIG. 1 shows the lowest position that the lever 18 and jaw 15 can occupy, and this corresponds to the minimum acceptable thickness of the boot sole l6.
  • a voluntary releasing phase a voluntary releasing phase
  • a bootremoval phase a voluntary releasing phase
  • the first, voluntary releasing phase takes place by exerting an upward traction on the lever 12 towards its free end 26, for example by means of the strap 25.
  • the lifting of lever 12 causes its part 27 acting on the wall 6 of piece 5 to compress the spring 4 and move the 4 edge 9 of piece 5 away from the face 19 of lever 18.
  • a ski safety heel binding according to the invention is particularly intended for uses where an efiicient safety mechanism is required at a low or relatively low cost, and for which a simplification of fitting and adjustment is desired.
  • Ski safety heel binding comprising a frame including means defining a plane face adapted to be fitted on the upper surface of a ski with a principal axis of said frame disposed along the longitudinal axis of the ski, guide means fixed relative to said frame, a boot sole holding member pivotally mounted on said frame about afirst axis parallel to said plane face and perpendicular to said principal axis, a lever pivotally mounted on said member about a second axis parallel to and spaced apart from said first axis, said lever having opposed first and second faces, a piece movably mounted on said frame, means defining a first profiled surface on said piece, elastic means for urging said piece against said first face of said lever to apply said second face of said lever against said guide means said second surface of said lever having means defining a cam-like profile for cooperating with said guide means to hold said member down in a first boot-sole engaging position under the action of said elastic means while allowing movement of said member to a second boot-sole releasing position when said member is subjected to
  • said camlike profile includes adjacent first and second portions of said second surface, said first portion being inclined relative to the direction along which said elastic means urges said piece and said second portion being disposed substantially perpendicular to said direction along which said elastic means urges said piece, said first portion cooperating with said guide means to maintain said member in its first position, and said second portion cooperating with said guide means to maintain said member in its second position.
  • Binding according to claim 1 in which said first I 7. Binding according to claim 1, in which said means and thud axes are coaxlaL for enabling manual movement of said second lever in- 6. Binding according to claim 1, in which said means for enabling manual movement of said second lever include a manually pullable flexible strap attached to said P of a Skl P se'cond lever.

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  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
US00360782A 1972-05-19 1973-05-16 Safety ski binding Expired - Lifetime US3856317A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7218018A FR2184509B1 (enrdf_load_stackoverflow) 1972-05-19 1972-05-19

Publications (1)

Publication Number Publication Date
US3856317A true US3856317A (en) 1974-12-24

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
US00360782A Expired - Lifetime US3856317A (en) 1972-05-19 1973-05-16 Safety ski binding

Country Status (6)

Country Link
US (1) US3856317A (enrdf_load_stackoverflow)
AT (1) AT327065B (enrdf_load_stackoverflow)
CH (1) CH564957A5 (enrdf_load_stackoverflow)
DE (1) DE2322970A1 (enrdf_load_stackoverflow)
FR (1) FR2184509B1 (enrdf_load_stackoverflow)
IT (1) IT987688B (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3990724A (en) * 1974-03-29 1976-11-09 Gertsch Ag Ski binding

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA762816A (en) * 1967-07-11 P. J. Salomon George Rear safety securing device for skis
DE1959821A1 (de) * 1968-12-10 1970-09-03 Salomon Georges P J Schi-Sicherheitsbindung
US3649037A (en) * 1969-02-12 1972-03-14 Carpano & Pons Device for releasably attaching ski boots to skis
US3746354A (en) * 1970-12-31 1973-07-17 Nippon Musical Instruments Mfg Heel holding device for safety ski bindings

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1500063A (fr) * 1966-06-21 1967-11-03 Salomon & Fils F Perfectionnements aux fixations arrière de sécurité pour skis
DE1703719C3 (de) * 1968-07-02 1975-11-20 Fa. Heinrich Eckel, 8000 Muenchen Auslösebacken für Skibindungen

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA762816A (en) * 1967-07-11 P. J. Salomon George Rear safety securing device for skis
DE1959821A1 (de) * 1968-12-10 1970-09-03 Salomon Georges P J Schi-Sicherheitsbindung
US3649037A (en) * 1969-02-12 1972-03-14 Carpano & Pons Device for releasably attaching ski boots to skis
US3746354A (en) * 1970-12-31 1973-07-17 Nippon Musical Instruments Mfg Heel holding device for safety ski bindings

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3990724A (en) * 1974-03-29 1976-11-09 Gertsch Ag Ski binding

Also Published As

Publication number Publication date
FR2184509B1 (enrdf_load_stackoverflow) 1975-08-29
CH564957A5 (enrdf_load_stackoverflow) 1975-08-15
FR2184509A1 (enrdf_load_stackoverflow) 1973-12-28
ATA412573A (de) 1975-03-15
DE2322970A1 (de) 1973-12-06
IT987688B (it) 1975-03-20
AT327065B (de) 1976-01-12

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