US3751055A - Ski binding - Google Patents

Ski binding Download PDF

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Publication number
US3751055A
US3751055A US00177571A US3751055DA US3751055A US 3751055 A US3751055 A US 3751055A US 00177571 A US00177571 A US 00177571A US 3751055D A US3751055D A US 3751055DA US 3751055 A US3751055 A US 3751055A
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US
United States
Prior art keywords
pin
projections
pair
ski binding
springs
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
US00177571A
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English (en)
Inventor
Y Ishida
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.)
Nippon Gakki Co Ltd
Original Assignee
Nippon Gakki Co Ltd
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 Nippon Gakki Co Ltd filed Critical Nippon Gakki Co Ltd
Application granted granted Critical
Publication of US3751055A publication Critical patent/US3751055A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • A63C9/0805—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
    • A63C9/08535—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
    • A63C9/08578—Details of the release mechanism using a plurality of biasing elements
    • 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
    • A63C9/08585—Details of the release mechanism using transverse biasing element

Definitions

  • Two pairs of projections are disposed in the room substantially in symmetrical relation to each other with respect to the pin.
  • a pair of elongated plate [30] Foreign Apphcauon Pnomy Data springs are inserted between the pin and projections, Sept. l4, 1970 Japan 45/80324 one f the Springs being i d between the pin and 4 pair of projections, and the other between the pin and [S2] Cl 280/1135 T the other pair of projections The Springs are engaged [51] Int. Cl. .1.
  • This invention relates to a binding of a ski which is held on a desired position of the ski under the action of a plate spring or springs which are made adjustable from outside of the binding.
  • ski bindings employ such mechanism as, when the stress transmitted from the ski to the shoe of the skier exceeds a value beyond which injury to the skier may occur, automatically releases the shoe from the ski.
  • conventional mechanisms are very complicated, usually employing coil springs, etc. for coupling the shoe to the binding.
  • the strength of the coil springs, which are concealed within the binding, are always uniform and unadjustable. For this reason, the holding force of the conventional binding cannot be adjusted in accordance with the physical strength of the foot of the skier.
  • the foot (or shoe) of the person cannot be released from the ski even when a stress in excess of the strength of the foot is applied to the foot of the skier, tending to cause sprain or fracture of bones of the skiers foot, and for a person having a stronger foot strength, there has been a tendency wherein the binding is released by a slight twist of the foot, thus causing casual removal of the ski out of the foot of the skier.
  • the condition of skiing is much different depending on the condition of snow wherein such snow is either fresh snow, trodden snow, or icy snow, and the force applied to the ski is usually far stronger when the skier runs on the fresh snow than on the other snows.
  • the holding force of the binding must be stronger than in other cases, and so long as the conventional unadjustable binding is employed in that case, the user must select a binding having ahigher holding strength than for the other cases, and this means that the skier must prepare bindings of different strengths adapted for different conditions of snow.
  • a primary object of the present invention is to provide an improved binding for a ski whereby all of the above described drawbacks of the conventional bindings can be substantially overcome.
  • Another object of the present invention is to provide an improved ski binding which, though simple in construction, has an adequate shoe-holding power.
  • Still another object of the presentinvention is to provide an improved'binding for a ski wherein the holding force for the shoe (foot) of a skier can be adjusted as desired.
  • an improved binding of ski comprising a base plate, a pin projecting from the base plate, the pin having a substantially flat section at one side thereof, a box-like body pivotally supported about the pin, the body having a shoe-engaging portion at one end and having a side wall defining a room therein, a pair of projections extending from the side wall into the room, plate spring means urgedly inserted between the pin and the pair of projections, the plate spring means being engageable with the substantially flat section of the pin and pressing the pin and'the pair of projections under the urging force of the spring means.
  • the improved binding of the ski may include another means for adjusting the urging force of the plate spring means.
  • FIG. 1 is a plan view, in section, of a ski binding. front or toe piece which constitutes an embodiment of the present invention
  • FIG. 2 is an elevational view, partly in section, of the front or toe piece shown in FIG. 1;
  • FIG. 3 is a plan view, similar to FIG. 1, of a ski binding front or toe piece which constitutes another embodiment of the present invention
  • FIG. 4 is a plan view,'similar to FIG. 1, of a ski binding front or toe piece which constitutes still another embodiment of the present invention.
  • FIG. 5 is an elevational view, partly in section, of the front or toe piece shown in FIG. 4.
  • FIGS. 1 and 2 there is indicated a ski binding front or toe piece constituting a preferred embodiment of the present invention, which comprises a box-like main body I of a hollow construction.
  • the main body 1 has a shoe-engaging portion at one end, that is, it has a curved rear end 2 of a radius conforming to the radius of the forward end of a ski-shoe.
  • the main body 1 also has a hollow space or room 3 which is defined by a side wall In of the body 1.
  • the box-like body 1 is pivotally supported about a vertical pin 10, which vertically projects from a base plate 16, extending through the room 3.
  • Two pairs of projections 4, 5, and 6, 7 are extended into the hollow space or room 3 from the opposite portions of the side wall la, so that the projections 4 and 5 oppose respectively the projections 6 and 7.
  • the projections 4, 5, 6 and 7 are disposed substantially in symmetrical relation to each other with respect to the vertical pin l0.Further the positional relations'between the pin 10 and the projections 4 through 7 are such that the distance between the line connecting the top ends of the pair of projections 4 and 5 or 6 and 7 and'the peripheral edge of the-pin l0 closest to said line is very narrow, permitting only the forced insertion therebetween of a plate spring mentioned'later on.
  • the pin 10 has a pair of substantially flat grooves 15 and 15 formed at its opposite upper portions closest to the lines connecting the top ends of the projections 4 and 5, and 6 and 7, respectively.
  • Two elongated plate springs 8 and 9 are forcedly inserted between the pin 10 and the projections 4 through 7, one 8 of the plate springs being inserted between the pin 10 and the projections 4 and 5, and the other 9 between the pin 8 and the projections 6 and 7.
  • the plate springs thus inserted are fitted into the grooves 15 and 15 and tightly held therein.
  • the forced insertion of the plate spring into the pin and the projections exerts urging forces on both the pin and projections, thus retaining the skibinding front or toe piece main body 1 to be situated in a predetermined position.
  • a spring pressure (or urging force) adjusting member 11 which is intergrally fixed to one end of a screw 12.
  • a threaded hole 14 is bored, and the screw 12 is passed through the hole 14 forwardly.
  • the knob 13 At the forward end of the screw 14, there is fixed a knob 13, and when the knob 13 is rotated in either of directions as indicated in FIG. 1, the spring pressure adjusting member 11 is shifted forwardly or rearwardly between the pair of plate springs 8 and 9, and the pressure or urging force exerted onto the vertical pin 10 and projections 4 through 7 by means of the plate springs 8 and 9 is thereby varied as desired, since the spaces between the forward ends of the plate springs 8 and 9, which otherwise are made narrower towards the forward ends thereof by the existance of the projections 4 and 6, can be widened by the adjusting member 11.
  • a ski shoe 20 is shown in dotted lines, and reference numeral 17 designates a ski plate to which the base plate 16 of the binding is fixedly attached.
  • FIG. 3 there is indicated another embodiment of this invention which is substantially similar to the above described embodiment except the mechanism which serves to move the spring pressure (or urging force) adjusting member.
  • the spring pressure adjusting member 11 of this embodiment is constructed into a nut of a substantially square configuration having a central threaded hole, and a screw 12 having a knob 13 at the forward end thereof in an integral manner is in this embodiment inserted into a through hole 18 provided at the center of the forward end of the binding main body 1.
  • the threadedportion of the screw 12 engages the nut-shaped spring pressure adjusting member 11', so that when the knob 13 is rotated in either of the directions, the nutshaped spring pressure adjusting member 11' is shifted forwardly or rearwardly and the spring pressure exerted onto the vertical pin 10 and projections 4 to 7 is thereby adjusted.
  • the spring pressure adjusting member 11 or 11 When it is desired to strengthen the compressive force or the urging force, the spring pressure adjusting member 11 or 11 is shifted forwardly by the rotation of the knob 13 or 13' in either of the directions, whereby the forward ends of the plate springs 8 and 9 are forced to be opened by the forwardly shifted adjusting member 11 or 11', and the afore-said compressive force or urging force is thereby increased.
  • the one shown in FIG. 1 is so constructed that the spring pressure adjusting member 11 and the screw 12 are shifted forwardly or backwardly in unison when the knob 13 provided at the forward end of the screw 12 is rotated in either of the directions
  • the other shown in FIG. 3 is so constructed that only the spring pressure adjusting member 11 is shifted forwardly or rearwardly along the screw 12' when the knob 13' is rotated.
  • FIG. 4 there is indicated still another embodiment of the present invention, wherein the main body 1 of the ski binding front piece is also formed into a similar configuration as in FIG. 1 having shoe-engaging portion at one end, and a side wall 1a defining a hollow space or room 3 inside of the main body 1.
  • a pair of projections 4' and 5' are extended inwardly from the side wall la of the main body l.
  • a pair of plate springs 8 and 9 are disposed in the space 3 in such a manner that the rearward ends of the plate springs are supported between the two projections 4 and 5' and that the forward ends of the springs are urged inwardly by means of a spring pressure adjusting member 21 having a substantially C-shaped cross section.
  • a vertical pin 10 is extended between these plate springs 8 and 9 at a central portion thereof, and the portions of the vertical pin 10 contacting with the plate springs 8 and 9 are cut into flat grooves 15 and 15.
  • the springs 8 and 9 are fitted in the grooves 15 and 15.
  • the spring pressure adjusting member 21 has a threaded hole 22 bored at its central portion, and a screw 23 passing through the forward end wall of the main body 1 is engaged into the threaded hole 22.
  • a knob 24 is provided at the forward end of the screw 23, and a stop member 25 is attached on the screw 23 at a position just inward of the forward end wall of the main body 1, so that any possibility of accidental removal of the screw 23 from the main body 1 is thereby prevented.
  • the distance between the ends 21a and2lb of the C- shaped adjusting member 21 is so set that, when the plate springs 8 and 9 are inserted into the space between the ends 2la and 21b of the member 21, the plate springs will exert a sufficient compressive force on the pin 10, thus keeping the main body to be situated in a predetermined position.
  • the compressive force can be adjusted by the rotation of the knob 24 in either of the directions.
  • the spring pressure adjusting member 21 is shifted rearwardly or forwardly along the screw 23, and when the member 21 is shifted rearwardly, it urges the forward ends of the plate springs 8 and 9 more strongly, and the vertical pin 10 is compressed more extensively by means of the plate springs 8 and 9.
  • this invention presents the ski binding which, though simple in construction, provides an adequate holding force for retaining the shoe (foot), of the skier on the ski during the operation of the ski, and which hasa mechanism for adjusting the shoe-holding force of the binding.
  • the main body 1 of the binding of this invention By properly adjusting the shoe-holding force of the binding, if too strong stress is applied to the binding from the foot of the skier, the main body 1 of the binding of this invention will be rotated about the pivot pin in opposition to the compressive force of the springs exerted on the pin 10, and will safely release the foot of the skier from the binding.
  • two plate springs are used for urging the pin and projections, but according to this invention, only one elongated plate spring may be used so long as the plate spring of greater urging force is employed.
  • a ski binding comprising a base plate, a pin projecting above said base plate, said pin having a substantially flat section at one side thereof, a box-like body pivotally supported about said pin and above said base plate, said body having a shoe-engaging portion at one end and having side walls each having an end communicating with said shoe-engaging portion, said side walls extending past said pin, thereby defining a room containing said pin, at least one pair of projections supported in said body and both extending toward one of said side walls and into said room, said projections being on opposite sides of said pin, plate spring means inserted under tension between said pin and said pair of projections, said plate spring means being engageable with said substantially flat section of said pin and pressing against said pin and said pair of projections under the urging force of said spring means.
  • ski binding as claimed in claim 1 further comprising an adjusting'member adjusting the urging force of said spring means.
  • a ski binding comprising a base plate, a pin projecting above said base plate, said pin having substantially flat sections at opposite sides thereof, a box-like body pivotally supported about said pin and above said base plate, said body having a shoe-engaging portion at one end and having side walls each having an end communicating with said shoe-engaging portion, said side walls extending past said pin, thereby defining a room containing said pin, one pair of projections supported in said body and extending toward one of said side walls and into said room and being on opposite sides of said pin, a second pair of projections supported in said binding and extending toward the other said side wall and into said room and being on opposite sides of said pin,
  • said projection pairs being disposed substantially in opposite relation to each other with said pin located between said pairs of projections, a pair of plate springs each inserted under tension between said pin and a respective pair of projections, said plate springs each being engageable with a respective said substantially flat section of said pin and pressing said pin and projections under the urging force of said plate spring.
  • each said projection of each said pair of projections is in contact with a respective end portion of a respective said plate spring to press said end portions of one of said springs towards said end portions of the other of said springs.

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  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
US00177571A 1970-09-14 1971-09-03 Ski binding Expired - Lifetime US3751055A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP45080324A JPS5116824B1 (enrdf_load_stackoverflow) 1970-09-14 1970-09-14

Publications (1)

Publication Number Publication Date
US3751055A true US3751055A (en) 1973-08-07

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ID=13715065

Family Applications (1)

Application Number Title Priority Date Filing Date
US00177571A Expired - Lifetime US3751055A (en) 1970-09-14 1971-09-03 Ski binding

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US (1) US3751055A (enrdf_load_stackoverflow)
JP (1) JPS5116824B1 (enrdf_load_stackoverflow)
DE (1) DE2144440C3 (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3892420A (en) * 1972-08-16 1975-07-01 Ver Baubeschlag Gretsch Co Support device for ski safety bindings
US5028069A (en) * 1988-12-20 1991-07-02 Tmc Corporation Centering spring for a front ski binding jaw

Families Citing this family (2)

* 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
CH708560A1 (de) * 2013-09-11 2015-03-13 Fritschi Ag Swiss Bindings Vorderbacken für eine Skibindung.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3892420A (en) * 1972-08-16 1975-07-01 Ver Baubeschlag Gretsch Co Support device for ski safety bindings
US5028069A (en) * 1988-12-20 1991-07-02 Tmc Corporation Centering spring for a front ski binding jaw

Also Published As

Publication number Publication date
DE2144440C3 (de) 1975-10-16
DE2144440A1 (enrdf_load_stackoverflow) 1972-04-06
JPS5116824B1 (enrdf_load_stackoverflow) 1976-05-27
DE2144440B2 (de) 1973-08-09

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