US3403920A - Heel tightener for ski bindings - Google Patents

Heel tightener for ski bindings Download PDF

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Publication number
US3403920A
US3403920A US532742A US53274266A US3403920A US 3403920 A US3403920 A US 3403920A US 532742 A US532742 A US 532742A US 53274266 A US53274266 A US 53274266A US 3403920 A US3403920 A US 3403920A
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United States
Prior art keywords
pusher
heel
frame member
tightener
ski
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Expired - Lifetime
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US532742A
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English (en)
Inventor
Adam Gunter
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
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Individual
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Assigned to MARKER-PATENTVERWERTUNGSGESELLSCHAFT MBH., A SWISS CORP. reassignment MARKER-PATENTVERWERTUNGSGESELLSCHAFT MBH., A SWISS CORP. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: MARKER, HANNES
Anticipated expiration legal-status Critical
Assigned to MARKER INTERNATIONAL COMPANY reassignment MARKER INTERNATIONAL COMPANY ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: MARKER-PATENTVERWERTUNGSGELLSCHAFT GMBH
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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
    • A63C9/083—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with loosenable cable strap

Definitions

  • a heel tightener for ski bindings in combination with a ski and a boot comprising two tensile elements extending along opposite sides of the heel of the boot and held to the ski at a part forward of the rear of the heel groove of the boot, a three-sided frame member opening forward and extending behind the heel generally in the direction of the tensile elements, a pusher shaped to fit the opening of the frame member and connected to the rear part of the latter for pivotal movement about an axis oriented transverse to the ski and generally parallel to the surface of the ski, the forward end of said pusher being shaped to engage the heel groove, when not in the clamping position said pusher being pivotally movable out of the frame member in a relative direction away
  • the known foretighteners for ski bindings have the disadvantage that a long encircling cable is always required, which extends from the foretightener to the heel of the skiing boot and embraces this heel, and that this wire cable must be pulled through against a very high friction under the downpull hooks whenever the tightener is being closed.
  • the Protective sleeve of these encircling cables sufifers permanent deformation and damage after a relatively short time of use.
  • heel tighteners for ski bindings comprise a pivoted lever, which has the form of a cylindrical housing and accommodates a strong helical tension spring, which cooperates with a bevelled surface, a lever system or the like in such a manner that a pusher, which is connected to the pivoted lever and engages the heel groove, is
  • the helical spring must be oversize because it does not act directly in the direction of the desired push but its force must be transmitted by the above-mentioned bevelled surfaces or levers.
  • the invention proposes a heel tightener for ski bindings, which tightener is free of the disadvantages of the known tighteners which have just been described.
  • This object is accomplished according to the invention in that two tensile elements, which extend along opposite sides of the heel of the boot and are directly or indirectly secured to the ski, bear on a forwardly open, three-sided frame member, which extends behind the heel approximately in the direction of the tensile element, and a pusher, which fits the opening of the frame member, is mounted in the latter close to its rear end for pivotal movement about an axis which is transverse to the ski and parallel to the surface of the ski, the forward end of said pusher being engageable in the heel groove, said pusher being pivotally movable out of the frame member in an upward direc tion to a large extent whereas in its clamping position it is approximately parallel to the frame member and engages an abutment on the frame member, which abutment prevents a downward pivotal movement of the pusher out of the frame member, said pusher
  • the use of a pusher which is pivoted to the frame member at the rear end of the latter has the results that it is sufficient to engage the heel groove with the forward end of the pusher, which has been swung upwardly out of the frame member, whereafter the frame member is gripped at its rear cross bar and pulled upwardly until the clamping position has been reached.
  • the springs may be provided in the pusher, which consists of two parts in this case, or between the frame member and the tensile elements, or between the tensile elements and the points where the same are attached to the ski. During the above-mentioned operation of the frame mem her, the springs are stressed so that they exert the desired pushing force.
  • the tensile elements extend in known manner along the limbs of the frame and each tensile element bears through a helical compression spring on the respective limb.
  • the helical compression springs and/or the tensile elements may be guided on the limbs of the frame in such a manner that any detrimental friction is precluded.
  • one of the tensile elements may be connected to the frame member in known manner by a load-limiting coupling, which is released in response to an excessively high tension.
  • the respective tensile element will become completely detached from the frame member under the action of an excessively strong force acting at right angles to the surface of the ski so that the heel of the boot is suddenly released.
  • the tensile element may be connected back to the frame member in a manner which is known per se and need not be described more fully.
  • the pusher member may be provided with a spring-loaded locking bolt, which in the clamping position of the pusher engages a corresponding opening in the frame member.
  • the locking may be effected before the center plane of the pusher has been swung into the center plane of the frame member.
  • the above-described load-limiting coupling may be provided between one of the tensile elements and the frame member, or, in a further development of the invention, the locking bolt may be movable out of its locking position against the spring force by means of an unlocking member, which is connected to at least one of the tensile elements and is operative when the deflection of the spring exceeds a preferably selectable amount.
  • an unlocking member which is connected to at least one of the tensile elements and is operative when the deflection of the spring exceeds a preferably selectable amount.
  • the unlocking member may consist of a sheet metal element, which is secured to a bridge member that connects the ends of the two tensile elements, the sheet metal element being adjustable along said bridge member in the transverse direction of the ski and having an edge, which is oblique with respect to the pulling direction and cooperates with a pin that is provided on the locking bolt and protrudes outwardly through an elongated hole of the pusher.
  • a locking of the pusher in its clamping position may be enabled by providing for a downward pivotal movement of the pusher from its position parallel to the frame member through a small angle, which amounts preferably to about until the pusher engages the abutment provided on the frame member.
  • the locking is effected by a pivotal movement of the pusher through its dead center position, behind which the pusher engages the abutment.
  • a safety release action may be provided for by a load-limiting coupling.
  • an unlocking member which is connected to at least one of the tensile elements, and to provide the pusher with a stop face for the unlocking member, which stop face is preferably adjustable in the longitudinal direction of the pusher, the unlocking member being arranged to effect a pivotal movement of the frame member and pusher relative to each other beyond the dead center position when the unlocking member applies pressure to the stop face.
  • a safety release action may be provided for by holding the pivot in its normal position by two slide members, each of which is associated with one of the tensile elements, and releasing the pivotal axis when the spring deflection ex ceeds a predetermined amount.
  • FIG. 1 is a top plan view showing a first embodiment of a heel tightener according to the invention and shows in dotted lines the position of one tensile element and of the associated helical spring after a release in the case due to a forward fall.
  • FIG. 2 is a side elevation showing the heel tightener assembly according to FIG. 1 before the engagement with the heel groove of the skiing boot, and
  • FIG. 3 shows the heel tightener assembly according to FIG. 1 in clamping position.
  • FIG. 4 is a top plan view showing a second embodiment of a heel tightener according to the invention.
  • FIG. 5 is a side elevation showing the embodiment of FIG. 4 before the engagement with the heel groove.
  • FIG. 6 shows the embodiment of FIG. 4 in clamping position with the heel tightener proper shown in a sectional view taken on line VIVI of FIG. 4.
  • FIG. 7 shows a third embodiment in a bottom view without the means for fixation to the ski.
  • FIG. 8 is a sectional view taken on line VIIIVIII of FIG. 7.
  • FIG. 9 shows the heel tightener of FIG. 7 in clamping position in a sectional view taken on line IX-IX of FIG. 7.
  • FIG. 10 is a top plan view showing a further embodiment of a heel tightener according to the invention.
  • FIG. 11 is a view showing the heel tightener of FIG. 10 partly in longitudinal section in its clamping position.
  • FIG. 12 shows the tightener of FIG. 10 at the beginning of the release action.
  • FIG. 1 shows a turntable 1, which is not a subject matter of the present invention and for this reason will not be described in more detail.
  • the cable sections 2 and 3 are secured to the turntable 1 and can be adjusted in length.
  • Each cable section 2 and 3 carries at its end a thimble 4 or 5.
  • Each of the thimbles 4 and 5 bears by a spring washer 6 or 7 on a helical compression spring 8 or 9, which surrounds the thimble and the end portion of the cable.
  • the forward turn of each helical spring 8 or 9 is interengaged with a hook portion of a frame member 10.
  • the springs 8 and 9 When a fall of the skier causes a strong rearward and upward pressure to be applied to the frame member, the springs 8 and 9 will be compressed by the spring washers 6 and 7.
  • the locking bolt 11 is secured in the thimble 4 and its effective length can be varied by screwing the bolt in a tapped bore of the thimble.
  • the spring 8 has been compressed so that the free end of the locking bolt 11 has been pulled out of the opening formed in the keeper 12 for guiding said bolt, the pull of the cable will effect a pivotal movement of the spring 8 with the cable section 2 and the thimble 4 about a fulcrum edge, which is not shown.
  • the spring 8 is disengaged from the retaining hook so that the cable section 2 with the spring 8 and the thimble 4 becomes entirely detached from the frame member 10. It is difficult or impossible to compress the spring 8 by hand.
  • the locking bolt 11 is inserted into the opening provided for this bolt in the keeper 12 and the latter is urged upwardly in the drawing by means of the spring washer 6 until the forward turn of the spring 8 has engaged behind the retaining hook.
  • the pivotal movement of the keeper 12 results in a deformation of the rubber spring 13, which normally urges the keeper against the frame member 10.
  • the spring 9 and the thimble 5 are permanently connected to the frame member 10.
  • a slide pin 14 is riveted into the keeper 12 and protrudes into a bore of the thimble 5 to such an extent that the pin will not leave said bore even under the greatest practically conceivable reduction of the length of the spring 9.
  • the frame member 10 consists of the limbs 15 and 16 and the rear cross-bar 17, which carries the keeper 12.
  • the frame member 10 is provided according to the invention close to the cross-bar 17 with a shaft 18, on which a pusher 19 is pivotally mounted.
  • the pusher fits the opening of the frame member 10 and, as is shown in FIG. 2, can be pivotally moved upwardly out of the frame member to a relatively large extent.
  • the forward portion of the frame member is provided with a stop rod 20, which is arranged to engage the pusher 19 when the same has been pivotally moved to its dead center position and further downwardly by a relatively small angle, preferably amounting to about 5, to the position shown in FIG. 3.
  • the forward end of the pusher 19 has a roller 21, which conforms to the curvature of the heel groove and facilitates the closing movement.
  • the pusher 19 When it is desired to close the heel tightener, the pusher 19 is moved to the position shown in FIG. 2 and the roller 21 is engaged in the heel groove 22. Now the cross-bar"17 can be pulled upwardly so that the heel tightener can be moved to its tightening position, shown in FIG. 3, without great eflfort. In clamping position, the
  • the heel tightener according to the invention can also be opened in a simple manner and without a great effort because a relatively large eflort arm is available when the heel tightener is to be opened by a downward pressure applied to the cross-bar 17 so that the tightener returns to the position shown in FIG. 2.
  • FIGS. 4 to 6 those elements of construction which agree in function with elements of the embodiment of FIGS. 1 to 3 are indicated by the same reference characters and their description will not be repeated.
  • the heel tightener is tightened in the same manner as in the embodiment which has just been described.
  • the release device is different.
  • the thimbles 4 and 5 are guided on both sides on the frame member by guide pins so that they cannot become detached from the frame member.
  • the frame member of this embodiment is pivotally moved downwardly beyond its dead center position so that the boot is immediately released from the binding.
  • the two spring Washers 6 and 7 are interconnected by a bridgelike unlocking member 24, which carries a roller 25.
  • the unlocking member 24 moves relative to the frame member 10 and the pusher 19 in response to the deflection of springs 8 and 9.
  • a screw 27 is adjustably secured in an elongated hole 26 of the pusher member 19 and is threaded into a tapped dead-ended bore formed in a stop member 28, which has a run-up face 29, which is oblique with respect to the direction of movement of the unlocking member 24.
  • the pusher 19 is not swung through its dead center position during the tightening of the heel tightener but engages the stop 20 when the center plane of the pusher has still a small angular spacing above the center plane of the frame member 10, as is apparent from FIG. 9.
  • a slide member 31 is provided with a locking bolt 30 and mounted in a bore of the pusher 19 and loaded by the helical spring 32. As soon as the pusher 19 has reached the above-mentioned clamping position, this slide member 31 causes its locking bolt 30 to engage a corresponding opening 33 in the limb 16 of the frame member 10 so that the pusher 19 is locked in its clamping position.
  • the locking bolt 30 is provided with a suitable bevelled face.
  • the locking bolt 30 comprises also a pin 34, which extends outwardly through an elongated hole 35 of the pusher 19.
  • the spring washers 6 and 7 ar again interconnected by a bridgelike unlocking member 24, to which an unlocking plate 36 of sheet metal is secured in this embodiment.
  • the plate 36 has an oblique edge 37. When the springs 8 and 9 have been deflected in excess of a predetermined amount, this oblique edge engages the pin 34 and displaces the same to the left in the drawing when the springs are further compressed. As soon as the locking bolt 30 has thus been moved out of the opening 33, the boot is released from the binding. To enable an adjustment of the tension which causes the release,
  • the unlocking plate 36 is adjustable in the transverse direction of the bridge member 24.
  • the plate 36 is formed with an elongated hole 38, through which screws 39 extend, which are threaded into the bridge member 24.
  • the shaft 18 which carries the pusher 19 is slidable in rearwardly inclined slots 40 in the frame member 10.
  • Each of the spring washers 6 and 7 is provided with a locking extension 41, which normally holds the shaft 18 in the position shown in FIG. 11.
  • the pusher 19 will move through its dead center position into the clamping position shown in FIG. 11 and will be locked in this clamping position.
  • the locking extension 41 of the spring washer 6 or 7 will release the shaft 18, which then slides rearwardly in the slots 40 so that the pusher 19 is displaced beyond its dead center position and the heel tightener is opened immediately.
  • a heel tightener for ski bindings in combination with a ski and a boot comprising two tensile elements extending along opposite sides of the heel of the boot and held to the ski at a part forward of the rear of the heel groove of the boot, a three-sided frame member opening forward and extending behind the heel generally in the direction of the tensile elements, a pusher shaped to fit the opening of the frame member and connected to the rear part of the latter for pivotal movement about an axis oriented transverse to the ski and generally parallel to the surface of the ski, the forward end of said pusher being shaped to engage the heel groove, when not in the clamping position said pusher being pivotally moved out of the frame member in a relative direction away from the ski surface and in the clamping position said pusher being pivotally moved to a position generally parallel with the frame member with the pushers forward end engaging the heel groove and the rear part of the frame rotated upward and forward relative thereto, said frame including an abutment to prevent pivotal movement of the pusher beyond the frame member when
  • a heel tightener according to claim 1 characterized in that the tensile elements extend along the opposite sides of the frame and each tensile element bears through a helical compression spring on the respective frame side.
  • a heel tightener characterized in that one of the tensile elements is connected to the frame member by a load-limiting coupling releasable in response to an excessively high tension.
  • a heel tightener characterized in that the pusher is provided with a spring-loaded locking bolt, which in the clamping position of the pusher engages a corresponding opening in the frame member.
  • a heel tightener characterized in that the locking bolt is movable out of its locking position against the spring force by means of an unlocking member, which is connected to at least one of the tensile elements and is operative when the deflection of the spring exceeds a preferably selectable amount.
  • a heel tightener characterized in that the unlocking member consists of a sheet metal element, secured to a bridge member that connects the ends of the two tensile elements, the sheet metal element being adjustable along said bridge member in the transverse direction of the ski and having an edge, oblique with respect to the pulling direction and cooperating with a pin that is provided on the locking bolt and protrudes outwardly through an elongated hole of the pusher.
  • a heel tightener according to claim 1, characterized in that the pusher in the clamping position is pivoted downward relative to the plane of the frame through an angle approximating about 5, whereupon the pusher engages the abutment provided on the frame member.
  • a heel tightener characterized in that an unlocking member is connected to at least one of the tensile elements and the pusher is provided with a stop face for the unlocking member, which stop face is preferably adjustable in the longitudinal direction of the pusher, the unlocking member being arranged to effect a pivotal movement of the frame member and pusher relative to each other beyond the dead center position when the unlocking member applies pressure to the stop face.
  • a heel tightener characterized in that the pivotal axis on which the pusher is mounted in the frame member is displaceable out of its normal position so that the pusher is moved beyond its dead center position, the pivotal axis is held in its normal position by two slidable locking members, each of which is connected to one of the tensile elements, and the pivot is released by said slidable locking members when the spring deflection exceeds a predetermined amount.

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  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Fluid-Damping Devices (AREA)
  • Automotive Seat Belt Assembly (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Road Paving Structures (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
US532742A 1965-03-10 1966-03-08 Heel tightener for ski bindings Expired - Lifetime US3403920A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1478138A DE1478138C3 (de) 1965-03-10 1965-03-10 Fersenstrammer für Sicherheits-Skibindungen
DE1478145A DE1478145C3 (de) 1965-03-10 1965-07-02 Fersenstrammer für Sicherheits-Skibindungen

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US3403920A true US3403920A (en) 1968-10-01

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US532742A Expired - Lifetime US3403920A (en) 1965-03-10 1966-03-08 Heel tightener for ski bindings
US535530A Expired - Lifetime US3394943A (en) 1965-03-10 1966-03-18 Heel tightener for ski bindings

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Application Number Title Priority Date Filing Date
US535530A Expired - Lifetime US3394943A (en) 1965-03-10 1966-03-18 Heel tightener for ski bindings

Country Status (9)

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US (2) US3403920A (es)
AT (1) AT269711B (es)
CH (1) CH450253A (es)
DE (2) DE1478138C3 (es)
ES (1) ES324018A1 (es)
FR (1) FR1470904A (es)
GB (1) GB1136170A (es)
NO (1) NO116623B (es)
SE (1) SE318215B (es)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3573878A (en) * 1968-04-19 1971-04-06 Hannes Marker Rear tightener for safety ski bindings
US3672694A (en) * 1970-12-21 1972-06-27 Whittaker Corp Means and techniques for releasably securing ski boots to skis
US20090295126A1 (en) * 2008-04-25 2009-12-03 Rottefella As Spring cartridge for ski binding

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2507093B1 (fr) * 1981-06-05 1985-11-08 Salomon & Fils F Fixation de securite pour ski
FR2507092A1 (fr) * 1981-06-05 1982-12-10 Salomon & Fils F Fixation de securite pour ski
FR2507094B1 (fr) * 1981-06-05 1985-09-27 Salomon & Fils F Fixation de securite pour ski
FR2508806A1 (fr) * 1981-07-06 1983-01-07 Salomon & Fils F Fixation de securite pour ski
FR2508807A1 (fr) * 1981-07-06 1983-01-07 Salomon & Fils F Fixation de securite pour ski
EP1018349A1 (fr) * 1999-01-05 2000-07-12 Salomon S.A. Dispositif de retenue d'une chaussure sur une planche de glisse
FR2788003B1 (fr) 1999-01-05 2001-03-16 Salomon Sa Dispositif de retenue d'une chaussure sur une planche de glisse

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1110856A (fr) * 1954-07-26 1956-02-17 Fixation de ski
FR1190118A (fr) * 1957-12-28 1959-10-09 Dispositif de fixation de sécurité pour ski
US3055673A (en) * 1958-08-20 1962-09-25 Marker Hannes Safety ski-binding
US3249365A (en) * 1962-12-15 1966-05-03 Beyl Jean Joseph Alfred Safety bindings for releasably locking the heels of ski boots
US3305242A (en) * 1964-06-22 1967-02-21 Marker Hannes Safety ski binding

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US168980A (en) * 1875-10-19 Improvement in air-springs for cars
DE1211868B (de) * 1963-01-15 1966-03-03 Stabilus Ind Und Handelsgesell Hydraulisches oder pneumatisches bzw. hydropneumatisches Daempfelement

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1110856A (fr) * 1954-07-26 1956-02-17 Fixation de ski
FR1190118A (fr) * 1957-12-28 1959-10-09 Dispositif de fixation de sécurité pour ski
US3055673A (en) * 1958-08-20 1962-09-25 Marker Hannes Safety ski-binding
US3249365A (en) * 1962-12-15 1966-05-03 Beyl Jean Joseph Alfred Safety bindings for releasably locking the heels of ski boots
US3305242A (en) * 1964-06-22 1967-02-21 Marker Hannes Safety ski binding

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3573878A (en) * 1968-04-19 1971-04-06 Hannes Marker Rear tightener for safety ski bindings
US3672694A (en) * 1970-12-21 1972-06-27 Whittaker Corp Means and techniques for releasably securing ski boots to skis
US20090295126A1 (en) * 2008-04-25 2009-12-03 Rottefella As Spring cartridge for ski binding
US8167331B2 (en) * 2008-04-25 2012-05-01 Rottefella As Spring cartridge for ski binding

Also Published As

Publication number Publication date
CH450253A (de) 1968-01-15
SE318215B (es) 1969-12-01
GB1136170A (en) 1968-12-11
US3394943A (en) 1968-07-30
DE1478145B2 (de) 1975-04-30
FR1470904A (fr) 1967-02-24
DE1478138A1 (de) 1970-02-19
DE1478138B2 (es) 1974-07-25
AT269711B (de) 1969-03-25
ES324018A1 (es) 1967-02-01
DE1478138C3 (de) 1979-02-01
DE1478145C3 (de) 1979-04-19
NO116623B (es) 1969-04-21
DE1478145A1 (de) 1970-07-02

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Effective date: 19820804

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

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

Effective date: 19880331