US3782743A - Ski safety binding element - Google Patents

Ski safety binding element Download PDF

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Publication number
US3782743A
US3782743A US00303032A US3782743DA US3782743A US 3782743 A US3782743 A US 3782743A US 00303032 A US00303032 A US 00303032A US 3782743D A US3782743D A US 3782743DA US 3782743 A US3782743 A US 3782743A
Authority
US
United States
Prior art keywords
axis
detent
shaft
recesses
shoe holder
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
US00303032A
Other languages
English (en)
Inventor
B Sittmann
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.)
Vereinigte Baubeschlag - Fabriken Gretsch and Co GmbH
Original Assignee
Vereinigte Baubeschlag - Fabriken Gretsch and Co GmbH
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 Vereinigte Baubeschlag - Fabriken Gretsch and Co GmbH filed Critical Vereinigte Baubeschlag - Fabriken Gretsch and Co GmbH
Application granted granted Critical
Publication of US3782743A publication Critical patent/US3782743A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • A63C9/085—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
    • 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
    • A63C9/085—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
    • A63C9/0805—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
    • A63C9/085—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with sole hold-downs, e.g. swingable
    • A63C9/08592—Structure or making

Definitions

  • shoe holders which pivot on a shaft about an axis perpendicular to the top surface of the ski toward and away from an operating position in which they hold a skiers shoe or boot, and. are normally held in the angular operating position by a spring-loaded detent.
  • the known detents are usually of circular cross section, either spherical or cylindrical, and are biased into engagement with a notch in the shaft of the shoe holder by a helical compression spring seated on the holder.
  • the stress of the spring determines at least in part the critical force to which the holder yields to release the skiers leg.
  • the force with which the known detents impede angular movement of the shoe holder may be adjusted by means of a threaded seat or abutment for the spring which may be moved toward or away from the shaft axis.
  • the known abutment may move on its threads when the binding is subjected to impact or vibration inherent in normal skiing, and a person not possessed of the necessary experience may set the abutment to an unsafe positon. Proper functioning of the binding critically depends on a proper setting of the release force.
  • the invention provides the shaft for the shoe holder of a safety binding element of the type described with at least two radial recesses or notches which are angularly offset about the axis of the shaft, and with a fastening arrangement which permits the shaft to be fastened to the longitudinal top surface of a ski in each of at least two positions offset about the shaft axis by an angle substantially equal to the angular offset of the recesses. In these positions, respective recesses are located in a predetermined plane which includes the axis of the shaft.
  • a spring-loaded detent is guided in or on the shoe holder in the afore-mentioned plane in the operating position of the holder toward and away from abutting engagement with the shaft in the recess which is located in that plane, and the two or more recesses differ in their configuration in such a manner that the detent impedes angular movement of the shoe holder away from its operating position with greater force when engaging one recess than when engaging the other.
  • FIGURE illustrates a portion of a ski having a safety binding element of the invention attached thereto, the element being shown partlyin top plan view, and partly in plan section.
  • a stub shaft 1 of generally cylindrical shape pivotally supports the toe holder 2 of a safety ski binding.
  • Four radial notches 3, 4, 5, 6 are formed in the cylindrical surface of the shaft 1 in equiangularly spaced relationship in a common plane transverse to the shaft axis.
  • the planar walls of the notches converge toward the shaft axis at equal angles, but differ in depth, the notch 3 being deepest and the notch 6 shallowest.
  • a plate 7 integral with or fixedly fastened to the shaft 1 extends in a plane radial relative to the shaft axis at one end of the shaft 1.
  • the plate 7 has the shape of a square with rounded edges.
  • the fillister heads of screws 8, 9, l0, 11 project above the top surface of the plate 7, and their shanks, obscured in the drawing, freely pass through respective openings in the four comers of the plate 7 and fixedly fasten the plate together with the shaft 1 to the top surface of a ski 17, only partly seen in the drawing.
  • the four openings in the plate 7 are equiangularly spaced about the axis of the shaft 1 and equidistant from the same within ordinary manufacturing tolerances.
  • the shaft 1 is received on a blind bore of the toe holder 12 so that the shaft 1 is completely obscured in the assembled condition of the safety binding element.
  • a spacer ring 20 on the shaft 1 holds the flat bottom face of the toe holder 2 sufficiently above the top face of the plate 7 to prevent the heads of the screws 8, 9, l0, 11 from touching the toe holder.
  • a stop 16 projects downward from the toe holder 2 toward the plate 7 abuttingly to engage the projecting heads of the screws 10, 11 when the toe holder 2 is turned about 45 in either direction from the illustrated operating position in which the bore 12 is located in a common plane including the axis of the shaft 1 with the notch 3, and the walls of the bore guide the ball 14 toward and away from the illustrated position of abutting, generally radial engagement with the shaft 1 in the notch 3.
  • the ball 14 serves as a detent which impedes angular movement of the toe holder 2 away from the operating position with a force determined in part by the stress in the spring 13 which is at its minimum when the ball 14 is received in the relatively wide and deep notch 3, and the plug 15 abuts against the screw cap 19.
  • the effective length of the spring 13 may be reduced, and the stress in the spring correspondingly increased by turning the plug 15 over the available short distance of the threads in the bore 12, somewhat smaller than the difference in effective depth of the notches 3 and 4.
  • a cylindrical detent known in itself, may replace the illustrated spherical detent 14, and the notches 3-6 may be changed to a shape suitable for accomodating the modified detent.
  • the notches have been shown to be of similar shape, and to differ only in their dimensions. However, other variations in their configuration may be resorted to in order to vary the force with which the detent 1 4 impedes angular movement of the shoe holder 2 from its illustrated position.
  • the distance between the engaged detent and the axis of the shaft may thus be varied not only by varying the depth of the several notches, but also by varying their apex angles, if they are all of similar shape, or by mak ing them of different respective shapes.
  • the bore 12 thus may be transverse to the elongation of the ski, and it need not be parallel to the top face of the ski, but may be obliquely inclined relative to the axis of the shaft 1.
  • notches 3, 4, 5, 6 and four fastening screws 8, 9, l0, 1 l have been found satisfactory and convenient.
  • the number of the notches or recesses may be decreased to not fewer than two without loss of all the advantages of this invention, and increased to five, six, seven, or even eight without unduly weakening the ski 17.
  • the notches 4 and 6 may be omitted from the illustrated embodiment while the number of screws remains unchanged.
  • the number of screws may be increased to any integral multiple of the number of notches, and their angular spacing correspondingly reduced to an integral fraction of the angular spacing of the notches.
  • A. safety binding element for a ski comprising, in combination:
  • the surface of said shaft member being formed with at least two radial recesses angularly offset about said axis;
  • fastening means for fastening said member on the longitudinal top surface of a ski in each of at least two positions offset about said axis by an angle substantially equal to the angular offset of said recesses
  • detent means for releasably impeding movement of said shoe holder member away from said operating position, said detent means including 1. a detent member,
  • guide means on said shoe holder member for guiding said detent member in said predetermined plane toward and away from a position of abutting engagement with said shaft member in the recess located in said plane
  • yieldably resilient means interposed between said detent member and said shoe holder member for biasing said detent member into said position of abutting engagement, said recesses differing in configuration in such a manner that said detent member impedes said angular movement of said shoe holder member with greater force when engaging said shaft member in one of said recesses than when engaging said shaft member in the other recess.
  • said fastening means include a plate member fixedly fastened to said shaft member and radial to said axis, said plate member being formed with two apertures therethrough in the direction of said axis, said apertures being spaced from said axis and angularly offset relative to said axis by said angle.
  • said shaft member is formed with four of said radial recesses equiangularly spaced about said axis
  • said fastening means include a plate member fixedly fastened to said shaft member and radial to said axis, said plate member being formed with four apertures therethrough in the direction of said axis, said apertures being substantially equidistant from said axis and substantially equiangularly spaced about said axis.

Landscapes

  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Buckles (AREA)
US00303032A 1971-11-03 1972-11-02 Ski safety binding element Expired - Lifetime US3782743A (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE2154639A DE2154639C3 (de) 1971-11-03 1971-11-03 Einrichtung zum Verrasten eines Haltekörpers eines Skisicherheitsbackens
DE2203867A DE2203867A1 (de) 1971-11-03 1972-01-27 Verriegelungsvorrichtung fuer skibindungen
DE19722265077 DE2265077A1 (de) 1971-11-03 1972-01-27 Verriegelungsvorrichtung fuer skibindungen
US30303272A 1972-11-02 1972-11-02
US00325247A US3811696A (en) 1971-11-03 1973-01-22 Ski safety binding element with adjustable release force

Publications (1)

Publication Number Publication Date
US3782743A true US3782743A (en) 1974-01-01

Family

ID=27510206

Family Applications (2)

Application Number Title Priority Date Filing Date
US00303032A Expired - Lifetime US3782743A (en) 1971-11-03 1972-11-02 Ski safety binding element
US00325247A Expired - Lifetime US3811696A (en) 1971-11-03 1973-01-22 Ski safety binding element with adjustable release force

Family Applications After (1)

Application Number Title Priority Date Filing Date
US00325247A Expired - Lifetime US3811696A (en) 1971-11-03 1973-01-22 Ski safety binding element with adjustable release force

Country Status (5)

Country Link
US (2) US3782743A (enrdf_load_stackoverflow)
AT (2) AT315044B (enrdf_load_stackoverflow)
CH (1) CH556675A (enrdf_load_stackoverflow)
DE (3) DE2154639C3 (enrdf_load_stackoverflow)
FR (2) FR2158272B3 (enrdf_load_stackoverflow)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3947053A (en) * 1973-05-25 1976-03-30 Vereinigte Baubeschlagfabriken Gretsch & Co. Retaining mechanism for safety ski bindings
USD299734S (en) 1984-12-21 1989-02-07 Marker Deutschland Gmbh Toepiece for ski binding
US11402284B2 (en) * 2019-06-27 2022-08-02 The Board Of Regents Of The University Of Oklahoma Apparatus and method for measuring toe flexion and extension

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4400373A1 (de) * 1994-01-11 1995-07-13 Hubert Boesch Sohlenbindung für Sportgeräte

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3473816A (en) * 1966-08-27 1969-10-21 Paul Unger Step in safety binding for ski
US3572739A (en) * 1967-12-19 1971-03-30 Richard Erlebach Safety ski binding

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1188922A (fr) * 1957-12-23 1959-09-28 Dispositif de fixation de sécurité pour ski
DE1956703A1 (de) * 1968-11-13 1970-06-11 Ansala Oy Zehenbindung fuer Alpenschier
DE1964306A1 (de) * 1969-12-22 1971-07-01 Marker Hannes Vorderbacken fuer Sicherheits-Skibindungen

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3473816A (en) * 1966-08-27 1969-10-21 Paul Unger Step in safety binding for ski
US3572739A (en) * 1967-12-19 1971-03-30 Richard Erlebach Safety ski binding

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3947053A (en) * 1973-05-25 1976-03-30 Vereinigte Baubeschlagfabriken Gretsch & Co. Retaining mechanism for safety ski bindings
USD299734S (en) 1984-12-21 1989-02-07 Marker Deutschland Gmbh Toepiece for ski binding
US11402284B2 (en) * 2019-06-27 2022-08-02 The Board Of Regents Of The University Of Oklahoma Apparatus and method for measuring toe flexion and extension

Also Published As

Publication number Publication date
CH556675A (de) 1974-12-13
DE2154639B2 (de) 1975-02-06
FR2158272A1 (enrdf_load_stackoverflow) 1973-06-15
FR2169258A1 (enrdf_load_stackoverflow) 1973-09-07
FR2158272B3 (enrdf_load_stackoverflow) 1975-11-28
AT323026B (de) 1975-06-25
DE2203867A1 (de) 1973-08-02
DE2265077A1 (de) 1976-04-08
US3811696A (en) 1974-05-21
DE2154639A1 (de) 1973-05-10
FR2169258B3 (enrdf_load_stackoverflow) 1976-01-30
DE2154639C3 (de) 1975-09-25
AT315044B (de) 1974-05-10

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