US3682494A - Toe iron for safety ski bindings - Google Patents

Toe iron for safety ski bindings Download PDF

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Publication number
US3682494A
US3682494A US44811A US3682494DA US3682494A US 3682494 A US3682494 A US 3682494A US 44811 A US44811 A US 44811A US 3682494D A US3682494D A US 3682494DA US 3682494 A US3682494 A US 3682494A
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US
United States
Prior art keywords
spring
bearing
toe iron
carrier
levers
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
US44811A
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English (en)
Inventor
Hans Otto Frisch
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.)
Marker International Co
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
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Application granted granted Critical
Publication of US3682494A publication Critical patent/US3682494A/en
Assigned to MARKER-PATENTVERWERTUNGSGESELLSCHAFT MBH., A SWISS CORP. reassignment MARKER-PATENTVERWERTUNGSGESELLSCHAFT MBH., A SWISS CORP. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: MARKER, HANNES
Assigned to MARKER INTERNATIONAL COMPANY reassignment MARKER INTERNATIONAL COMPANY ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: MARKER-PATENTVERWERTUNGSGELLSCHAFT GMBH
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
    • A63C9/005—Ski bindings with means for adjusting the position of a shoe holder or of the complete binding relative to the ski
    • 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
    • A63C9/085—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
    • A63C9/085—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
    • A63C9/08571—Details of the release mechanism using axis and lever
    • 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
    • A63C9/0802—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings other than mechanically controlled, e.g. electric, electronic, hydraulic, pneumatic, magnetic, pyrotechnic devices; Remote control
    • 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

  • a soleholder member constitutes the coupling link of a four-bar linkage, which comprises two-armed levers that are connected to a carrier, which is pivoted to a baseplate that is fixed to the ski.
  • the distance between the fulcrums of the levers exceeds the distance between the pivotal axes of the soleholder member.
  • That arm of each lever which does not carry the soleholder member forms a locking member, which cooperates with a stop that is rigid with the baseplate.
  • said locking members lock the carrier against a pivotal movement to respective sides.
  • a spring is held on the carrier and opposes a pivotal movement of the fourbar linkage from its normal position.
  • the present invention relates to a toe iron for safety ski bindings, which toe iron comprises a soleholder member which constitutes the coupling link of a fourbar linkage, which comprises two-armed levers that are connected to a carrier, which is pivoted to a baseplate that is fixed to the ski, and in which toe iron the distance between the fulcrums of the levers exceeds the distance between the pivotal axes of the soleholder member.
  • a ball detent lock is provided between the soleholder member and the baseplate and the said lock is held closed by a variable pressure so that the force required fora release can be varied.
  • Those arms of the levers which do not carry the soleholder member serve as actuating means, by which an additional lock which is provided between the carrier and the baseplate is opened after a predetermined movement of the soleholder member.
  • this toe iron has the advantage that the soleholder member is moved along an are which is centered on the imaginary axis of rotation of the skiing boot. As a result, a pivotal movement of the soleholdermember does not impart to the skiing boot a component of motion toward the tip of the ski under the influence of the force which acts on the heel and urges the skiing boot against the toe iron.
  • This toe iron has the disadvantage that its soleholder member is locked on the baseplate so that the toe iron is highly susceptible to shock. Because the skier is afraid of the resulting unnecessary release actions and falls and the atypical skiing injuries caused thereby, he is tempted to select an excessively hard setting for the toe iron so that it may fail to release in a critical instance and typical skiing injuries may result which ought to have been avoided by the safety binding.
  • each lever arm which forms a locking member in a common horizontal plane, to arrange each lever arm which forms a locking member so that its outer end face forms a stop for the anti-friction bearing, and that each stop is curved about the fulcrum of the respective lever.
  • the carrier may be formed with a curved slot
  • the stop which is rigid with the baseplate extends through the slot and its free end portion carries the anti-friction bearing.
  • the spring bears on the carrier by means of a bearing element, which has two bearing points disposed on opposite sides of the vertical longitudinal center plane and which is pivotally movable in a horizontal direction about one or the other of said bearing points against the I force of the springQ
  • a soleholder member which constitutes the 1 coupling link of a four-bar linkage, which comprises two-armed levers that are connected to a carrier, which is pivoted to a baseplate that is fixed to the ski, and in which toe iron the distance between the fulcrums of the levers exceeds the distance between the pivotal axes of the soleholder member
  • this object is accomplished according to the invention in that that arm of each lever which does not carry the soleholder member fonns a locking member, which cooperates with a stop that is rigid with the baseplate, said locking members lock the carrier against a pivotal movement to respective sides when the soleholder member is in its normal position, and a spring is held on the carrier and oppos
  • the toe iron according to the invention may be so designed that it will automatically return to its normal position after a safety release.
  • the bearing point of the spring on the carrier is suitably adjustable in the longitudinal direction of the carrier in order to pennit of a change of the force required for a release of the toe iron.
  • each of those arms of the levers which carry the soleholder member comprises preferably an inwardly extending nose, which is acted upon by the spring with a spring abutment interposed, if desired.
  • the sole-engaging element may be mounted on the soleholder member fora free vertical sliding movement and may be formed with a horizontal groove in a surface which faces a surface of the soleholder member which latter surface is formed with a series of horizontal grooves, and a locking pin may be received in said groove of the sole-engaging element and one of the grooves of the soleholder member.
  • the free end portion of the locking pin is preferably angled and the sole-engaging element may be provided with a recess for receiving said end portion.
  • FIG. 1 is a central longitudinal sectional view showing a toe iron, I
  • FIG. 2 is a top plan view showing the toe iron of FIG. 1,
  • FIG. 3 is a top plan view which is similar'to FIG. 2 but shows the toe iron in position immediately before a safety release,
  • FIG. 4 is a top plan view showing the toe iron in open position
  • FIG. 5 is a side elevation of the toe iron
  • FIG. 6 is a top plan view of an arrangement in which the means which support the spring on the carrier differ from those of FIGS. 1 to 5, and
  • FIG. 7 shows the toe iron of FIG. 6 in a position which corresponds to that of FIG. 3.
  • the toe iron according to the invention comprises a baseplate 1, by which the toe iron can be connected to a ski, e.g., by screws.
  • the baseplate is formed with two countersunk holes 2 (see FIGS. 2-4).
  • the baseplate isprovided with a pivot pin 3 (see particularly FIG. 1), on which a carrier 4 is pivotally mounted.
  • the carrier is held against axial movement by a disc 5, which is screwed by means of a screw 6 to the pivot pin.
  • Two levers 9, 10 are mounted at the pivots 7, 8 on the carrier and are connected at the pivots 12, 13
  • the carrier 4 At its “end opposite to the soleholder member, the carrier 4 comprises offset portions '14, which serve as guide rails and protrude into a corresponding groove 15 of the soleholder memberll 7 (see particularly FIGS. 1 and 5).
  • the levers 9, 10 are two-armed and their arms 16 and l7which do not carry the soleholdermember constitute respective; locking members; The two locking members cooperate with an anti-friction bearing 18,
  • the bearing 18 is mounted on a' 'carrying pin 19, which is 'rivetedinto-the baseplate 1 (see FIG. 1).
  • each locking bolt locks the carrier 4 against a pivotal movement to one side. Otherwise, such movement of the carrier would be. permitted by a correspondingly curved slot 40.
  • That end of the carrier 4 which is remote from the soleholder-member l l-forms a guide 20 fora bearing 3 bracket 21.
  • the 'guide 20 extends in the'longitudinal direction of the carrier.
  • Thebearing bracket 21 can adjusted in the guide 20 by means'of a screw 22.
  • a spring abutment 24 is held in anannular groove 23 of the bearing bracket 21 and provided with a spring-'guiding pin 25.
  • a helical compression spring 26 bears at one end on the spring abutment 24, and at its other end on a'spring abutment 28, which is also vprovided with a spring-guiding pin 27 and which on its outer end face is formed with two notches, each of which receivesa nose 29 or 30.
  • the nose 29 is formed on that arm of the lever 9 which carriesthe soleholder member 1 1 and the nose 18.
  • the four-bar mechanism will initially move again in the manner which has been described hereinbefore.
  • the outer end face of the arm 17 of the lever 10 disengages the anti-friction bearing 18 so that the carrier 4 is unlocked andcan now move about the pivot pin 3 to the position shown in FIG. 4;
  • the soleholder member virtually suddenly releases the toe portion of the skiing boot.
  • FIGS. '1, 2 and 5 show the toe iron in its normal position, in which the carrier 4-is locked against a pivotal movement on the baseplate l.
  • arms 16 and 17 of Y the levers 9 and 10 which serve as locking members have curved outer end faces which are centered on the respective fulcrum 7 or 8 and extend adjacent to the anti-friction bearing 18, which serves as a stop that is rigid with the baseplate.
  • the four-bar linkage is centered in its normal position by the helical compression spring 26, which is more or less highly prestress'ed as may be required.
  • the carrier 4 remains in its normal position in this phase because the free end of the arm 17 of the lever 10 is still in contact with the anti-friction bearing may be curved with such a small radius that the stress of the helical compression spring is slightly increased during the second phase-of the movement by'a small bearing member'35, which bears on both bearing pins 32, 33 when the toe iron is in normal position (see F IG. 6).
  • the bearing member is located by two recesses, which have the same curvature as the bearing pins and vare spaced apart by the same distance as the bearing pins.
  • the sole-engaging element 41 is mounted on the soleholder member 11 for a free vertical'sliding movement.
  • Thesoleholder member is formed in its surface 42, which faces the soleholder element, with a series of horizontally extending grooves 43.
  • a corresponding horizontal groove 44 is formed in the sole-engaging element and together with a registering groove 43 receives a locking pin 45, which is insertable from the side.
  • the locking pin consists of a piece of spring wire, which has a pointed end portion and an angled opposite end portion 46.
  • the sole-engaging element is formed with a recess 47 for receiving said angled end portion.
  • the locking pin is held so that its angled end portion extends approximately horizontally.
  • the angled end portion is turned upwardly so that the locking pin is seized in position. The angled end portion is then engaged with the recess of the sole-engaging element to lock the locking pin against an unintended release.
  • a toe iron for safety ski bindings which toe iron comprises a four-bar linkage and a baseplate fixed to the ski, said baseplate having a vertical pivot pin fixedly mounted on the rearward central portion thereof, a carrier pivotally connected to the baseplate about said pivot pin, and said four-bar linkage including a pair of laterally spaced two-armed levers and a transversely extending soleholder member acting as a coupling link between said levers, each of said levers being pivotally mounted to said carrier about respective pivot axes positioned forwardly of said pivot pin, each of said levers being further pivotally connected at its rearward end to said coupling link about respective coupling link pivot axes, and wherein the distance between the pivot axes of the levers exceeds the distance between the coupling link pivot axes, said toe iron further comprising a stop rigidly connected to said baseplate at a forward central portion thereof forwardly of said lever pivot axes, the forward end of each of said levers forming a locking member normally engaging said stop, said toe iron
  • stop comprises an anti-friction bearing, said locking members and the anti-friction bearing located in a common horizontal plane, each of said locking members having an outer end face acting as a stop for the anti-friction bearing, and each said outer end face being centered about a respective one of said lever pivot axes.
  • a toe iron according to claim 2 characterized in that the carrier is formed with a curved slot, which has a center of curvature on the pivotal axis of the carrier at said pivot pin, and the stop which is rigid with the baseplate extends through the slot and wherein the stop has a free end portion which carries the anti-friction bearing.
  • a toe iron according to claim 5 characterized in that the distance between said forward and said rearward spring abutrnents is adjustable in the lingitudinal direction of the carrier.

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  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
US44811A 1969-06-19 1970-06-09 Toe iron for safety ski bindings Expired - Lifetime US3682494A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1930997A DE1930997C3 (de) 1969-06-19 1969-06-19 Vorderbacken für Sicherheits-Skibindungen

Publications (1)

Publication Number Publication Date
US3682494A true US3682494A (en) 1972-08-08

Family

ID=5737377

Family Applications (1)

Application Number Title Priority Date Filing Date
US44811A Expired - Lifetime US3682494A (en) 1969-06-19 1970-06-09 Toe iron for safety ski bindings

Country Status (11)

Country Link
US (1) US3682494A (de)
JP (1) JPS4923870B1 (de)
AT (2) AT307948B (de)
CA (1) CA909818A (de)
CH (2) CH545634A (de)
CS (1) CS151025B2 (de)
DE (1) DE1930997C3 (de)
ES (1) ES188118Y (de)
FR (1) FR2052760A5 (de)
SE (1) SE387245B (de)
YU (1) YU32695B (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3774925A (en) * 1971-02-16 1973-11-27 Marker Hannes Device for adjusting and indicating the initial stress of release-opposing springs in safety ski binding elements
US3787070A (en) * 1971-02-16 1974-01-22 Salomon Georges P J Ski binding with lateral release
US3810646A (en) * 1971-09-15 1974-05-14 W Suhner Ski binding construction
US3813110A (en) * 1972-01-20 1974-05-28 Ver Baubeschlag Gretsch Co Adjusting mechanism for the retaining springs of safety ski bindings
US3854741A (en) * 1972-02-25 1974-12-17 Marker Hannes Toe iron for safety ski bindings
US4061358A (en) * 1975-10-31 1977-12-06 Hope Co. Ltd. Ski boot toe binding
US5040820A (en) * 1988-06-08 1991-08-20 Salomon S.A. Safety binding for a ski

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2846232A (en) * 1954-03-12 1958-08-05 Reinhold Voster Safety device for securing a shoe upon a ski
US3348855A (en) * 1965-06-21 1967-10-24 Marker Hannes Safety toe iron for ski bindings
US3528672A (en) * 1967-06-15 1970-09-15 Wunder Kg Heinrich Safety ski binding

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2846232A (en) * 1954-03-12 1958-08-05 Reinhold Voster Safety device for securing a shoe upon a ski
US3348855A (en) * 1965-06-21 1967-10-24 Marker Hannes Safety toe iron for ski bindings
US3528672A (en) * 1967-06-15 1970-09-15 Wunder Kg Heinrich Safety ski binding

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3774925A (en) * 1971-02-16 1973-11-27 Marker Hannes Device for adjusting and indicating the initial stress of release-opposing springs in safety ski binding elements
US3787070A (en) * 1971-02-16 1974-01-22 Salomon Georges P J Ski binding with lateral release
US3810646A (en) * 1971-09-15 1974-05-14 W Suhner Ski binding construction
US3813110A (en) * 1972-01-20 1974-05-28 Ver Baubeschlag Gretsch Co Adjusting mechanism for the retaining springs of safety ski bindings
US3854741A (en) * 1972-02-25 1974-12-17 Marker Hannes Toe iron for safety ski bindings
US4061358A (en) * 1975-10-31 1977-12-06 Hope Co. Ltd. Ski boot toe binding
US5040820A (en) * 1988-06-08 1991-08-20 Salomon S.A. Safety binding for a ski

Also Published As

Publication number Publication date
DE1930997A1 (de) 1970-12-23
SE387245B (sv) 1976-09-06
AT305102B (de) 1973-02-12
CH545634A (de) 1974-02-15
YU141370A (en) 1974-10-31
ES188118Y (es) 1974-09-01
CH521138A (de) 1972-04-15
AT307948B (de) 1973-06-12
CA909818A (en) 1972-09-12
ES188118U (es) 1974-01-16
FR2052760A5 (de) 1971-04-09
DE1930997B2 (de) 1978-03-23
JPS4923870B1 (de) 1974-06-19
CS151025B2 (de) 1973-09-17
YU32695B (en) 1975-04-30
DE1930997C3 (de) 1978-11-09

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Legal Events

Date Code Title Description
AS Assignment

Owner name: MARKER-PATENTVERWERTUNGSGESELLSCHAFT MBH., BAAR, S

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:MARKER, HANNES;REEL/FRAME:004089/0014

Effective date: 19820804

AS Assignment

Owner name: MARKER INTERNATIONAL COMPANY,UTAH

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:MARKER-PATENTVERWERTUNGSGELLSCHAFT GMBH;REEL/FRAME:004906/0245

Effective date: 19880331

Owner name: MARKER INTERNATIONAL COMPANY, P.O. BOX 26548, SALT

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:MARKER-PATENTVERWERTUNGSGELLSCHAFT GMBH;REEL/FRAME:004906/0245

Effective date: 19880331