US3288477A - Safety ski binding device - Google Patents

Safety ski binding device Download PDF

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Publication number
US3288477A
US3288477A US376736A US37673664A US3288477A US 3288477 A US3288477 A US 3288477A US 376736 A US376736 A US 376736A US 37673664 A US37673664 A US 37673664A US 3288477 A US3288477 A US 3288477A
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United States
Prior art keywords
boot
ski
toe end
elements
abutment
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Expired - Lifetime
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US376736A
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English (en)
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Beyl Jean Joseph Alfred
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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
    • A63C9/085—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
    • A63C9/08564—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
    • A63C9/0805—Adjustment of the toe or heel holders; Indicators therefor

Definitions

  • This invention relates to safety ski bindings of the type adapted to hold against motion the toe end of a ski boot.
  • this invention is concerned with safety ski bindings of the type consisting of an abutment member rotatably mounted on the ski about a vertical axis ahead of the ski boot position, the rear face of this abutment member comprising means for retaining the toe end of the ski boot sole.
  • rotary abutment devices are urged to their normal position by resilient locking means adapted however to permit their rotation and therefore the release of the toe end of the ski boot when an abnormally high efifort is exerted on the skiers leg and foot.
  • the present invention provides a ski binding device comprising boot retaining means for reliably holding the boot against transverse motion without interfering whatsoever with the movements of rotation of the abutment member and of the boot in case of abnormally high torsional effort.
  • this invention also contemplates the provision of means permitting the easy adjustment of the retaining means at the toe end of the boot as a function of the width of the toe end of the ski boot sole.
  • this invention contemplates means for simplifying the structure of a ski binding device of the type set forth hereinabove with a view to reduce its cost price.
  • the present invention provides a safety ski binding device adapted to hold the toe end of the ski boot against motion, which consists of an abutment member rotatably mounted on the ski top and normally urged to its normal position by resilient holding means, said abutment member comprising at its rear end means adapted to receive the toe end of the ski boot and to hold same against motion both in the forward direction and laterally,
  • said means consist on the one hand of a pair of side arms extending obliquely to the rear and fitting on either side Too of the toe end of the boot, and on the other hand of a bearing surface projecting from the middle of the rear face of said abutment member and adapted to be engaged by the toe end of the boot sole, the rear face of said abutment member being formed with two re-entrant angles or notches on either side of said bearing face.
  • the two side arms of said device are carried by two separate members rotatably mounted on the rotary body of said abutment member about a common axis, said two separate members being connected to each other and to the body of said abutment member by means adapted to cause said two separate members to move bodily about said common axis while permitting the adjustment of the initial relative angular position of these two members for modifying at will the relative spacing of said two side arms.
  • FIGURE 1 is a side elevational view showing the ski binding device of this invention according to a first form of embodiment there-of;
  • FIGURE 2 is a plan view from above of the same device
  • FIGURE 3 is a section taken upon the line III-III of FIGURE 2;
  • FIGURES 4- to 6 inclusive are perspective views showing the three component elements of the rotary abutment member
  • FIGURES 7 to 9 inclusive are diagrammatic plane views from above showing the various positions of the ski binding device and of a ski boot held thereby on the ski during the operation of the device;
  • FIGURE 10 is a plan view from above showing a modified form of embodiment of the ski binding device of this invention.
  • FIGURE 11 is a vertical section taken upon the line XI-XI of FIGURE 10, and
  • FIGURES 12 to 14 inclusive are perspective views showing the three component elements of the abutment member body of the corresponding device.
  • This base plate may be secured for instance by means of three screws 2 and carries a cylindrical pivot member 3 extending upwards at right angles to the upper face of the base plate.
  • each arm 6a, 6b is rigid or formed integrally with one of these elements, as shown.
  • each arm 6a, 65 comprises on its inner face an upper overhanging ledge 7a, 7b adapted to engage the top of the toe end B of the ski boot sole.
  • the three elements 4, 5a, 5b are thus rotatably mounted about the pivot 3. However they are rotatably interconnected by means permitting a modification of the initial relative angular position of the two elements 5a, 5b with respect to the lower element 4. These means consist preferably of relatively deep or pronounced alternate radial ribs and grooves formed on the registering 3 faces of these three elements, as shown more particularly in FIGURES 4 to 6.
  • the element 4 carries on its upper face an annular set of radial ribs 8 disposed at spaced intervals.
  • the intermediate element a comprises on its lower face another annular set of radial grooves 9 disposed at spaced intervals, adapted to be engaged by the ribs 8.
  • this intermediate element 501 has also formed on its upper face an annular set of radial ribs 10 adapted to engage corresponding radial grooves 11 formed in the lower face of the upper element 5b.
  • the two elements 5a, 5b are coupled together and with the lower element 4 in such a way that the two arms 6a, 6b extend obliquely to the rear to form substantially a V on either side of the location provided for the toe end of the ski boot C.
  • the two elements 5a, 5b are formed at the rear, in close vicinity of the side arms 6a and 6b, with two curved convex portions 15a, 15b corresponding for example to portions of a same cylindrical surface. They constitute for example the continuation of the outer cylindrical surface of the lower element 4.
  • the convex curved portions 15a and 15b constitute the rear face of the rotary abutment member.
  • this rear face comprises an intermediate portion 17 projecting from the two ends 17a, 17b thereof which form somewhat two re-entrant angles on either side of this projecting intermediate portion (see FIGURE 2).
  • the intermediate portion 17 of the rear face of the abutment member is adapted to constitute the bearing surface engageable by the toe end B of the ski boot sole.
  • this rotary abutment member which consist of the three superposed annular elements 4, 5a and 5b, as explained hereinabove, is urged to its normal position by a resilient return or locking system which may be of any suitable and known type.
  • a resilient return or locking system which may be of any suitable and known type.
  • the rotary body of this abutment member is locked in its normal position by three part-spherical projections 18 formed on the upper face of the base plate 1 and engaged in corresponding recesses 18a formed on the lower face of the annular element 4.
  • the aforesaid projections 18 are disposed at spaced intervals on the top surface of base plate 1, and are retained in the corresponding recesses 18a because the rotary abutment body proper is resiliently pressed against the base plate 1 by the action of a suitable spring.
  • This spring may consist of a simple dished washer r19 exerting an elastic pressure on the head 20 of the aforesaid screw-threaded shank 13 extending through the axial bore of the fixed pivot member 3.
  • the washer 19 as well as the head 20 of shank 13 are housed in a cavity 21 formed on the lower face of base plate 1, the washer 19 being interposed between the bottom of this cavity and the head 20 of shank 13.
  • this spring washer 19 will constantly resiliently urge the pivot member 13 in the direction of the arrow F (FIGURE 3) to cause the flange 14 of nut 12 to engage the rotary abutment body, more particularly the upper annular element 5b.
  • the force of the spring consisting of the dished washer 19 may be adjusted at will by screwing in or out the nut 12 to compress more or less the washer.
  • the conditions of operation of the ski binding device may be adjusted at will so that the rotary abutment body rotates in the occurrence of an abnormally high torsional effort exerted on the skiers foot and, therefore, on the ski boot C.
  • the toe end of the ski boot may be retained by means of the device of this invention in a particularly simple way.
  • the user simply engages the toe end B of the boot sole between the tWo side arms 6a and 6b of the rotary abutment member.
  • the V disposal of these two arms obviously facilitates the positioning of the toe end of the boot sole therebetween.
  • the toe end of the boot when the toe end of the boot is properly positioned, it is firmly retained by the abutment device at three points, namely at points X and Y engaged by the front corners of the boot sole on the two side arms, and at point 0 where the front end of the toe portion of the boot sole engages the projecting bearing face 17 of the abutment member.
  • the toe end of the boot is safely retained in all directions, the conditions in which the boot is held in the lateral directions being improved considerably with respect to hitherto known binding devices. Any upward movement of the boot is also prevented because the front corners of the sole are engaged under the overhanging ledges 7a and 7b of the two side arms.
  • the width of the boot sole may vary according to the type of boot used by the skier, it is obviously necessary to have the possibility of adjusting the relative spaclng of the two lateral arms as a function of this width. However, this adjustment may be effected very easily by simply unscrewing the nut 12 and lifting the two annular elements 5a and 5b supporting these two arms in order to modify their relative initial angular positions with respect to the lower annular element 4.
  • the torsional effort transmitted to the abutment body is sufiicient to overcome the resistance of spring 19 urging the projections 18 of base plate 1 for engagement in the recesses 18a of the abutment body.
  • disengaging the projections 18 from the corresponding recesses 18a causes the abutment body to rise together with the pivot 13 against the resistance of the dished spring 19.
  • This upward movement is advantageous in that it removes the upper ledges 7a, 7b of the two side arms in relation to the upper face of the toe end B of the boot sole, so that the boot is relieved from its forced engagement with the top face of the ski.
  • the toe end of the ski boot is reliably held against transverse motion and the relative spacing of the side arms may be adjusted exactly as a function of the width of this toe end of the ski boot.
  • FIGURES 10 to 14' inclusive of the drawings illustrate another typical form of embodiment of the ski binding device of this invention.
  • the axis about which the two elements carrying the side arms rotate is separate from the pivot member of the rotary abutment body, whereas in the preceding example both pivots were merged into one.
  • the base element 40 of the rotary body carries at its front end a pivot member 30 projecting from its top face. Slipped or stacked on this pivot member 30 are two elements c and 5d carrying the side arms 6c and 6d of the device.
  • the registering faces of these three elements are formed with complementary projections and cavities for rotatably assembling these elements with each other; if desired, these projections and cavities consist respectively of radial ribs and grooves 8, 9, and 11. These projections permit of locking the two elements 50 and Ed on the base element 4c in any desired mutual angular position by pivoting about the axis of pivot member 30.
  • a nut 140 is provided on this pivot member for locking the elements 5c and 5d in the desired relative positions.
  • the vertical pivot member 3 of the device is carried by the base plate 1.
  • the base element 4c is formed with a circular hole 23 and slipped over the pivot member 3 so as to be rotatable about the axis thereof.
  • the two elements 50 and 5d are each formed with a curved slot 24c, 24d respectively, both slots being engaged by the fixed pivot member 3. Due to their configuration these slot permit of altering the initial relative angular positions of these two elements 5c and 5d by pivoting about the pivot 30 as the main pivot 3 extends through these elements.
  • the base element 4c constitutes together with the two elements 50 and 5d the rotary body assembly of the present device.
  • This assembly is kept in its normal position by a resilient locking system similar to that provided in the preceding example.
  • This system comprises projections 18 emerging from the top face of base plate 1 and engageable in corresponding recesses 18a of the lower face of base element 40.
  • This system further comprises a spring consisting in this example of a resilient dished washer 19 acting upon the head 20 of a shank 13 slidably mounted within the fixed pivot member 3. The upper end of this shank bears on the rotary assembly of the abutment member by means of a nut 14 so that by screwing this nut in or out the compressive force of spring 19 can be adjusted at will.
  • the rear face 16 of the rotary body is curved with its convexity directed backwards as in the preceding case. It also comprises an intermediate zone 17 projecting somewhat in relation to two reentrant angles 17a and 1712. With this specific configuration of the rear face 16 any possibility of wedging the toe end of the boot sole during the rotation of the abutment device is definitely precluded.
  • This alternate device is also advantageous in that it permits an accurate adjustment of the relative angular position of the two side arms as a function of the width of the toe end of the ski boot by pivoting the two elements 50 and 5d about a common axis, in this case the axis of pivot member 30.
  • this axis could be located on the rear end of the base element 40 instead of on its front end.
  • the device according to the first example illustrated in FIGURES 1 to 6 is more advantageous than the one illustrated in FIGURES 10 to 14.
  • the first device is advantageous notably in that it comprises only one pivot member (3) acting as a pivot member with respect both to the abutment body and to the elements 5a and 5b for adjusting the relative spacing of the lateral arms.
  • the structure of this first device is simpler.
  • the ski binding device according to this invention should not be construed as being limited by the two specific forms of embodiment described hereinabove by way of example.
  • the rear face 16 of the rotary abutment body is of substantially cylindrical configuration, but it would not constitute a departure from the spirit and scope of the invention to make this face with another suitable configuration, provided that its central portion comprises a projecting bearing face and, on either side thereof, two recessed forming somewhat re-entrant angles adapted to receive one or the other corner of the toe end of the boot sole during the rotation thereof.
  • the means for assembling the three annular elements constituting the abutment body may be replaced with any other suitable means.
  • the projections 18 of the resilient locking system may be provided on the inner face of the annular element 4 of the abutment body instead of on the base plate 1; in this case the corresponding recesses 18a are provided on this base plate. If the component elements of the abutment body are manufactured by plastic moulding, these projections are formed of course by moulding same integrally with the corresponding element. However, these projections may be replaced by balls interposed between the base plate 1 and the abutment body.
  • the resilient locking system of the abutment body may be replacd by any other equivalent system or, if desired, by a resilient return system adapted to hold and restore the abutment body to its normal position.
  • Safety ski binding device adapted to hold the toe end of a ski boot against motion, which comprises in combination a base plate, a pivot member carried thereby and adapted to be secured on the top face of a ski so that said pivot member extends upwards at right angles to said ski face; a three-piece abutment body mounted on said pivot member, said body consisting of a base element, and two upper elements, said elements being in superposed position on said pivot member and being interconnected; the toe of said boot adapted to abut against said body; resilient means connecting said elements to said base plate and retaining said abutment body, said resilient connection permitting said abutment body to rotate about said pivot when a torsional effort of predetermined value is applied thereto; a pair of diverging lateral extending arms on the rear of said abutment body adapted to hold between them and to act as a bearing and retaining surface for the toe end of the boot sole, each of the two upper elements of said body having one of said lateral arms extending rearwards on either side of the
  • Safety ski binding device as set forth in claim 1, wherein there is a face provided in the central region of each of said upper elements with a projecting portion adapted to constitute a bearing surface for the front of the toe end of the boot sole intermediate said arms.
  • a safety ski binding device as set forth in claim 1, wherein said two upper elements carrying said lateral arms are mounted above each other and above said abutment base, said means for locking said elements consisting of complementary projections formed on the registering faces of said two elements and on said abutment base, and a clamping member mounted on said pivot member of said abutment body.
  • a safety ski binding device as set forth in claim 2, wherein said two elements carrying said lateral arms are mounted above each other and above said abutment base, said means for locking said elements consisting of complementary projections formed on the registering faces of the said two elements and said abutment body, and a clamping member mounted on said pivot member of said abutment body.
  • a safety ski binding device as set forth in claim 1, wherein said abutment body and said two elements carrying said lateral arms are pressed against said base plate by a shank slidably mounted in the pivot member of said abutment body, a spring reacting on said base plate and adapted to act upon said shank, and complementary projections adapted toengage each other, formed on the registering faces of said base plate and said abutment body respectively.
  • a safety ski binding device as set forth in claim 2, wherein said abutment base and said two upper elements carrying said two lateral arms are pressed against said base by means of a shank slidably mounted in said pivot member of said abutment body, a spring reacting against said base plate and adapted to act upon said shank, and complementary ribs and grooves formed on the register-ing faces of said base on the one hand and said two upper elements on the other hand, said ribs and grooves being interengaged.
  • Safety ski binding device as set forth in claim 1, wherein said resilient means includes a shank within said body and a disked washer on said shank bearing against the lower face of said base.

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  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
US376736A 1963-06-27 1964-06-22 Safety ski binding device Expired - Lifetime US3288477A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR939525A FR1370677A (fr) 1963-06-27 1963-06-27 Dispositif de fixation de sécurité pour ski

Publications (1)

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US3288477A true US3288477A (en) 1966-11-29

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US376736A Expired - Lifetime US3288477A (en) 1963-06-27 1964-06-22 Safety ski binding device

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US (1) US3288477A (fr)
AT (1) AT252078B (fr)
CH (1) CH400877A (fr)
DE (1) DE1428871C3 (fr)
ES (1) ES301035A1 (fr)
FR (1) FR1370677A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3399902A (en) * 1966-02-24 1968-09-03 Adam Gunter Safety toe iron for ski bindings
US20050158353A1 (en) * 2004-01-15 2005-07-21 Welch Kenneth J. Volatile releasing substrates and methods for preparing them

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2463629A1 (fr) * 1979-08-23 1981-02-27 Salomon & Fils F Fixation de securite pour ski

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3188104A (en) * 1962-04-04 1965-06-08 Secuma Safety device for ski-securing means
US3207525A (en) * 1963-10-07 1965-09-21 Hvam Hjalmar Toe binding

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3188104A (en) * 1962-04-04 1965-06-08 Secuma Safety device for ski-securing means
US3207525A (en) * 1963-10-07 1965-09-21 Hvam Hjalmar Toe binding

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3399902A (en) * 1966-02-24 1968-09-03 Adam Gunter Safety toe iron for ski bindings
US20050158353A1 (en) * 2004-01-15 2005-07-21 Welch Kenneth J. Volatile releasing substrates and methods for preparing them

Also Published As

Publication number Publication date
FR1370677A (fr) 1964-08-28
DE1428871C3 (de) 1974-07-11
CH400877A (fr) 1965-10-15
ES301035A1 (es) 1964-09-16
DE1428871B2 (de) 1973-12-06
AT252078B (de) 1967-02-10
DE1428871A1 (de) 1968-12-12

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