US3558150A - Safety toe iron for ski bindings - Google Patents

Safety toe iron for ski bindings Download PDF

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Publication number
US3558150A
US3558150A US801560A US3558150DA US3558150A US 3558150 A US3558150 A US 3558150A US 801560 A US801560 A US 801560A US 3558150D A US3558150D A US 3558150DA US 3558150 A US3558150 A US 3558150A
Authority
US
United States
Prior art keywords
ski
soleholder
toe iron
pedal
toe
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
US801560A
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English (en)
Inventor
Hannes Marker
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.)
Individual
Original Assignee
Individual
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
Priority claimed from DE19681678281 external-priority patent/DE1678281C3/de
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US3558150A publication Critical patent/US3558150A/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
    • A63C9/08585—Details of the release mechanism using transverse biasing element
    • 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
    • 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
    • A63C9/005—Ski bindings with means for adjusting the position of a shoe holder or of the complete binding relative to the ski

Definitions

  • the soleholder member is slidably mounted in a guide which extends transversely to the longitudinal direction of the ski and said soleholder member is movable in said guide against the force of at least one spring element and is movable forwardly after a predetermined transverse displacement.
  • the spring element holds the soleholder member in its normal position and returns the soleholder member to said normal position when a displacement has been effected.
  • the soleholder member comprises a pedal, which is arranged to engage the forward end portion of the sole of the skiing boot from below.
  • the free end of the pedal is held on a toe iron member which is fixed to the ski.
  • the free end of the pedal is held on said toe iron member with freedom of sliding movement in a plane which is parallel to the ski.
  • the present invention relates to safety toe irons for ski bindings, in which toe irons the soleholder member is slidably mounted in a guide which extends transversely to the longitudinal direction of the ski and said soleholder member is movable in said guide against the force of at least one spring element and is movable forwardly after a predetermined transverse displacement, the spring element holding the soleholder member in its normal position or returning the soleholder to said normal position when a displacement has been effected.
  • the soleholder member comprises a pedal, which is arranged to engage the forward end portion of the sole of the skiing boot from below and the free end of said pedal is held on a toe iron member which is fixed to the ski, said free end of the pedal being held on said toe iron member with freedom of sliding movement in a plane which is parallel to the ski.
  • That end face of the free end of the pedal which extends transversely to the longitudinal direction of the ski comprises desirably a groove, which is parallel to the ski and which is engaged by a guide strip of the toe iron part which is fixed to the ski.
  • a groove which is parallel to the ski and which is engaged by a guide strip of the toe iron part which is fixed to the ski.
  • FIG. 1 is a central longitudinal sectional view showing a safety toe iron
  • FIG. 2 is a top plan view showing the toe iron of FIG. 1.
  • the safety toe iron according to the invention which is shown on the drawing is secured to the ski 2 by means of four screws 1 (FIG. 2).
  • the toe iron comprises a soleholder member 3 having a soleholder 4 proper, which is adjustable in height for adaptation to skiing boot soles differing in thickness. This adjustment is known per se and will not be described in detail.
  • the soleholder member 3 has two arms 5, 6, which extend toward the tip of the ski and engage the end faces of a helical compression spring 8.
  • the spring 8 extends transversely to the longitudinal direction of the ski and is mounted in a toe iron member 7, which is fixed to the ski. Stops 9 are provided above and below each of the arms 5 and 6 and serve to hold the helical compression spring in the toe iron member 7.
  • the helical compression spring is under a sufficiently large initial stress and holds the soleholder member 3 in its normal position.
  • a nose 10 of the soleholder member 3 bears on a guiding surface 11 of the toe iron part 7 which is fixed to the ski when there is a skiing boot in the binding.
  • the guiding surface 11 At both ends of the guiding surface 11, the latter is offset at 12 toward the tip of the ski to an extent which determines the range of movement of the soleholder member toward the tip of the ski.
  • the transition is not in the form of a right-angled step.
  • the toe iron member 7 that is secured to the ski has a central horizontal recess 13, which serves to receive one of the arm-s when the soleholder member is displaced toward the tip of the ski.
  • the soleholder member 3 comprises a pedal 14, which serves to engage the forward end portion of the sole of the skiing boot from below. That end face of the free end of the pedal which is transverse to the longitudinal direction of the ski has a groove which is parallel to the ski and which receives a guiding strip 15 of a toe iron member 16 which is fixed to the ski.
  • the toe iron members 7 and 16 which are fixed to the ski are interconnected by a relatively thin spacing plate 17.
  • This plate consists of a material having a low coefiicient of friction. During a transverse displacement of the soleholder member 3, the latter is positively guided.
  • the materials of the parts which slide on each other may be selected for minimum friction.
  • at least two rolling elements may be provided betwen the pedal 14,
  • the rolling elements will suitably be provided in the pedal at the ends of the groove.
  • a backing roller may be mounted at the free end of the nose 10 so that the soleholder member 3 can roll on the guiding surface 11.
  • the soleholder member 3 If the soleholder member 3 is subjected to a force acting transversely to the longitudianl direction of the ski and overcoming the initial stress of the spring 8, said force will cause the soleholder member to be displaced transversely to the longitudinal direction of the ski so that the spring 8 is more highly stressed. As the force decreases, the soleholder member under the action of the spring 8 automatically returns to its intermediate position. If the soleholder member 3 is subjected to a force which is dangerous to the leg of the skier, the soleholder memher will be tranversely displaced initially by one half of the length of the guiding surface. Owing to the step 12, the soleholder member will subsequently be displaced toward the tip of the ski so that the skiing boot is released by the soleholder 4. Owing to the oblique transition between the guiding surface 11 and the step 12, the spring 8 can automatically return the soleholder member 3 to its normal position when the skiing boot has been released.
  • a safety toe iron for ski bindings comprising: toe iron means fixed to a ski and serving as a mount for a soleholder; soleholder means mounted on said toe iron means and slidably guided thereby in a direction transverse to the longitudinal dimension of the ski and in a plane parallel to the ski; a biasing spring for urging said soleholder means toward a rest position and for returning said soleholder to its rest position; said soleholder means comprising a pedal of substantial width provided in the rearward portion of said soleholder means and serving to support the forward region of the skiing boot at the bottom thereof; first guide means for guiding the forward region of said soleholder means, said guide means being of such a configuration that said soleholder means is guided in a direction transverse to the longitudinal dimension of the ski until a predetermined transverse displacement of said soleholder means and is then guided in a direction parallel to the longitudinal dimension of the ski after said predetermined transverse displacement; and second guide means for guiding said pedal in a direction transverse to the longitudinal dimension of the ski.

Landscapes

  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
US801560A 1968-02-28 1969-02-24 Safety toe iron for ski bindings Expired - Lifetime US3558150A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19681678281 DE1678281C3 (de) 1968-02-28 1968-02-28 Vorderbacken für Sicherheits-Skibindungen

Publications (1)

Publication Number Publication Date
US3558150A true US3558150A (en) 1971-01-26

Family

ID=5686849

Family Applications (1)

Application Number Title Priority Date Filing Date
US801560A Expired - Lifetime US3558150A (en) 1968-02-28 1969-02-24 Safety toe iron for ski bindings

Country Status (7)

Country Link
US (1) US3558150A (de)
AT (1) AT285394B (de)
CH (1) CH477210A (de)
DE (1) DE1678281B2 (de)
ES (1) ES363851A1 (de)
FR (1) FR2002825A1 (de)
SE (1) SE340974B (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4505494A (en) * 1980-12-30 1985-03-19 Tmc Corporation Release type ski binding

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4505494A (en) * 1980-12-30 1985-03-19 Tmc Corporation Release type ski binding

Also Published As

Publication number Publication date
CH477210A (de) 1969-08-31
SE340974B (de) 1971-12-06
DE1678281B2 (de) 1976-07-22
AT285394B (de) 1970-10-27
ES363851A1 (es) 1971-01-01
FR2002825A1 (de) 1969-10-31
DE1678281A1 (de) 1971-11-11

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