US3799563A - Sole support apparatus - Google Patents

Sole support apparatus Download PDF

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Publication number
US3799563A
US3799563A US00171552A US17155271A US3799563A US 3799563 A US3799563 A US 3799563A US 00171552 A US00171552 A US 00171552A US 17155271 A US17155271 A US 17155271A US 3799563 A US3799563 A US 3799563A
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US
United States
Prior art keywords
ski
plate
boot
disk members
disk
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
US00171552A
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English (en)
Inventor
T Smolka
G Schweizer
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.)
Gertsch AG
Original Assignee
Gertsch AG
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 Gertsch AG filed Critical Gertsch AG
Application granted granted Critical
Publication of US3799563A publication Critical patent/US3799563A/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
    • A63C9/001—Anti-friction devices

Definitions

  • ABSTRACT A device for facilitating the emergency release of a ski boot from a ski by minimizing friction between the ski boot and the ski.
  • the device broadly consists of a re tatable, normally circular, member rotatably mountable on the ski and arranged to lie between the boot and the ski in the normal position of use.
  • the rotatable member is arranged so that only a portion thereof which is moveable substantially across the ski contacts the boot, said limited contact being effected by any mechanically convenient means including either suitable tilting of the rotatable member or masking the portion not to be contacted by the boot.
  • Antifriction means as ball or roller bearings, may be used between the rotatable member and either the boot or ski.
  • the invention relates to a sole support apparatus which has at least one element which is supported rnovably on the ski and on which the sole of the ski boot rests when in use.
  • plates which are mounted onto the ski have already been suggested.
  • a known plate consists for example of a disk rotatably supported on the ski.
  • the pivot point about which the ski boot pivots would have to be substantially coincident with the axis of rotation of the disk.
  • the ski boot does not always rotate around the same axis so that in most cases variable frictional forces still occur between the ski shoe and the plate.
  • the movably supported element as a rotatable member.
  • Said rotatable member is then so mounted as to contact the ski boot sole with one but only one portion of its surface which portion is movable substantially transversely of the ski and the portions of the circular member which then moves during the release operation relative to the movement of the boot, do not contact the boot sole.
  • FIG. I illustrates the mounting of a ski boot on the ski.
  • FIGS. 2 and 3 illustrate views associated with one another of a sole support apparatus with three disks.
  • FIG. A illustrates in an enlarged scale a particular construction of a disk.
  • the ski boot l is held with a sole 2 on the ski 5 between appropriate binding parts, for example a rear tensioning means 3 and a front jaw 4.
  • appropriate binding parts for example a rear tensioning means 3 and a front jaw 4.
  • the boot l is twisted out opposite the ski 5 from the binding parts 3 and 4.
  • the boot is pivoted about the sole point or about an axis in the area of the heel.
  • one or more sole support apparatuses 6,7 which reduce the friction (or rather maintain the friction constant) are arranged between the ski boot and ski.
  • the sole support apparatus in FIGS. 2 and 3 consists of a base plate 9 mounted to the ski 5.
  • the base plate 8 has a pair of inclined surfaces 9A and 9B thereon, facing in opposed directions and joined together along a common edge 9C.
  • the base plate 9 has three rotatable members, here disks, 9 rotatably mounted thereon, one disk member on the surface 8A and two disk members on the surface NB.
  • the axes of rotation Ill) of the disks are arranged inclined to the surface of the ski 5 but not in the same direction.
  • each disk 9 is constructed approximately like a plate. Through this the sole of the boot 2 rests only on a portion of the surface ll of the disk 9, which surface is formed by the platelike inclination.
  • the contact of the inclined surface H and the boot sole 2 takes place only on one line.
  • the disks roll with their inclined surface Ill along the ski boot.
  • the inventive sole support apparatus is arranged corresponding to the ski bindings used.
  • the axis of one disk 9 is here for example inclined leftwardly of a plane perpendicular to the longitudinal axis of the ski and the axes of both other disks 9 defining a theoretical base line of the triangular arrangement (which base line is preferably perpendicular to the longitudinal axis of the ski) are inclined rightwardly of the plane.
  • the conical platelike inclined surfaces ill (surface of frustums) of the disks 9 are thus positioned in the zone where they contact the shoe sole 2 in one plane. During a safety release the shoe then rolls along three disks toward the side.
  • low friction spacers 12 for example of Teflon, are provided between the disks 9 and the base plate d in order to reduce the friction as much as possible.
  • ball bearings can also be provided between the base plate and disk.
  • Such a construction can for example be as shown in FIG. A.
  • balls 13 are provided in grooves between the disk 9 and the base plate A, which balls, if necessary, can also be arranged in a ball cage. Thus when the disk 9 rotates, same rolls along the balls.
  • a sole support apparatus adapted to materially reduce the friction between the boot sole of a skier and the ski in the area beneath one of the heel and the ball of the foot in pivotal action about the heel upon release of the boot toe by a toe binding due to excessive lateral pressure, said apparatus having a mounting plate adapted to be secured to a ski in the general area beneath one of the heel and the ball of the foot of a skier, the improvement comprising:
  • each of said disk members being identical and having a conical surface defined by a frustum the axes of which are coaxial with the respective axesof rotation of each of said disk members, said disk members being rotatably mounted on said I plate, one disk member on one of said inclined surfaces of said plate, the remaining two disk members on the other of said inclined surface of said plate and arranged to define an isosceles triangle and adapted to rotate in either direction as required upon the occurrence of a relative movement between the boot sole and said plate, the theoretical base of said triangle arrangement being perpendicular to the longitudinal axis of said ski and the axis of rotation of said disk members located on said lel lines.

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  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
US00171552A 1970-08-28 1971-08-13 Sole support apparatus Expired - Lifetime US3799563A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT783770A AT302128B (de) 1970-08-28 1970-08-28 Sohlenauflageeinrichtung

Publications (1)

Publication Number Publication Date
US3799563A true US3799563A (en) 1974-03-26

Family

ID=3599943

Family Applications (1)

Application Number Title Priority Date Filing Date
US00171552A Expired - Lifetime US3799563A (en) 1970-08-28 1971-08-13 Sole support apparatus

Country Status (5)

Country Link
US (1) US3799563A (enrdf_load_stackoverflow)
JP (1) JPS511180B1 (enrdf_load_stackoverflow)
AT (1) AT302128B (enrdf_load_stackoverflow)
DE (1) DE2121742C3 (enrdf_load_stackoverflow)
FR (1) FR2101541A5 (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4352507A (en) * 1978-07-07 1982-10-05 Tmc Corporation Sole-support mechanism

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2546072B1 (fr) * 1983-05-17 1985-10-25 Look Sa Element arriere de fixation de ski
US5449192A (en) * 1990-09-12 1995-09-12 Salomon S. A. Boot support plate for ski binding

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1428931A1 (de) * 1962-03-10 1969-02-20 Miller Andrew Earl Skibindung
FR1558544A (enrdf_load_stackoverflow) * 1968-01-10 1969-02-28
US3511516A (en) * 1967-04-20 1970-05-12 Smolka & Co Wiener Metall Ski-binding
US3544123A (en) * 1968-03-29 1970-12-01 Sports Technology Anti-friction device for ski boots and skis
US3618965A (en) * 1969-12-15 1971-11-09 Harvard K Hecker Safety device for skis

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1428931A1 (de) * 1962-03-10 1969-02-20 Miller Andrew Earl Skibindung
US3511516A (en) * 1967-04-20 1970-05-12 Smolka & Co Wiener Metall Ski-binding
FR1558544A (enrdf_load_stackoverflow) * 1968-01-10 1969-02-28
US3544123A (en) * 1968-03-29 1970-12-01 Sports Technology Anti-friction device for ski boots and skis
US3618965A (en) * 1969-12-15 1971-11-09 Harvard K Hecker Safety device for skis

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4352507A (en) * 1978-07-07 1982-10-05 Tmc Corporation Sole-support mechanism

Also Published As

Publication number Publication date
FR2101541A5 (enrdf_load_stackoverflow) 1972-03-31
DE2121742B2 (de) 1974-01-10
AT302128B (de) 1972-10-10
DE2121742C3 (de) 1974-08-01
JPS511180B1 (enrdf_load_stackoverflow) 1976-01-14
DE2121742A1 (de) 1972-03-02

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