US3194573A - Safety head for ski bindings - Google Patents

Safety head for ski bindings Download PDF

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Publication number
US3194573A
US3194573A US255407A US25540763A US3194573A US 3194573 A US3194573 A US 3194573A US 255407 A US255407 A US 255407A US 25540763 A US25540763 A US 25540763A US 3194573 A US3194573 A US 3194573A
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United States
Prior art keywords
housing
spring
pressure member
boot
ski
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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
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US255407A
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English (en)
Inventor
Unger Paul
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Individual
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Individual
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Publication of US3194573A publication Critical patent/US3194573A/en
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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
    • 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
    • A63C9/08578—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
    • A63C9/18—Non-self-releasing bindings without heel-straps, but with a clamping device arranged at the front end of, or behind, the binding

Definitions

  • the invention relates to ski bindings and is particularly concerned with a safety head for ski bindings, and it is particularly intended to provide a safety device to protect skiers in the event of forward and turning or twisting falls in a reliable and simple manner.
  • a safety head or a safety binding of this type must provide the facility of lifting the foot from the ski 'for climbing as well as to establishthedesired sfixed connection between ski and foot prior to the start.
  • Safety bindings are also known which have a device which during a forward fall as well as during a turning fall effects the unlatching, i.e., the release of the foot, but such bindings are inherently of complicated technical construction and therefore expensive to manufacture while a-tthe same time they are subject to failure. Besides the components of such devices are frequently exposedand therefore are insufficiently protected against the entrance of snow and ice so that as a result they may fail to function during use.
  • a pressure member for the release that is rotatable as well as longitudinally slidable where the turning and/ or longitudinal sliding of the pressure member is possible .
  • this safety means comprises merely the safety head arranged at the front end of the foot, i.e., substantially in a line with the latch for the shoe, it leaves the choice of the remaining binding parts entirely optional. Consequently the safety head in accordance with the invention can be employed with any type of binding means and can be adapted to all requirements or demands arising in practice. In accordance with a further object of the invention, it is also made possible to combine this safety head with a tensioner in such a manner that the pressure member during forward fall as well as also during turning fall becomes immediately effective for releasing the tensioner, thereby providing a ski binding that is readily and simply operative While being safe at the same time.
  • a further advantage resides in that the pressure member can be readily returned to the initial position upon release of the binding and without use of essential force.
  • To facilitate the return movement and also to improve the release it is a further object of the invention to mount the boot latch on an angular offset of the pressure member which is in the form of a lever so that the release force and the resetting force act by way of thelever arm on the pressure member.
  • the straps of the long strap binding need not be placed again after the release but that the ski boot with the strap closed about it can immediately be replaced on the ski and the tensioner can be latched in the manner described.
  • safety head in accordance with the invention is structurally simple while separate accessories such as turn plates are avoided. Also it requires relatively little space and can be installed ahead of the boot, between boot and tensioner or it can be structurally combined with the latter.
  • FIGS. la, 1b show a longitudinal section of the safety head with a part of the ski boot where also as with the remaining figures the numeral associated with ashows .the operative position and the numeral associated with b shows the parts upon being released;
  • FIGS. 2a, 2b illustrate the corresponding cross sections of the operative and inoperative positions taken along lines 11- 11 of FIGS. 1a, 1b;
  • FIGS. 3a, 3b are partial views showing sections of the operative and inoperative positions of the boot latch with respect to the ski;
  • FIGS. 4a, 4b are partial views showing the forward end of the pressure member in relation to the detent ball
  • FIGS. 5a, 5b illustrate the operative and the inoperative position of the parts of a different embodiment of the invention in longitudinal section
  • FIG. 6a is a cross section along line VI-VI in FIGS. 5a and 5b;
  • FIG. 6b is a view indicating the normal position of the pressure member in its hollow bearing shell
  • FIG. 60 shows the position of the hollow shell forthe released position of the latch
  • FIG. 7a is a side view of the release member of the embodiment in accordance with FIGS. 5a and 51);
  • FIG. 7b is a top view thereof
  • FIG. 70 is a section taken along line VII-VII in FIG. 7a; and 7 FIGS. 8a, 8b-illustrate the positions of the release member and pressure member in sections taken along lines VHF-VIII in FIGS. Saand 5b, respectively.
  • the housing 1 of the safety head encloses the pressure A member 2 in the form of a bolt which is longitudinally and pivotally movable. Longitudinal or sliding move ments are limited in one direction by the end wall of the housing and in the other direction by a lip 4 which in the end position engages the bearing sleeve 5 of the housing 1.
  • the boot latch 7 for the ski boot 8 is secured by way of an angular offset 6 to the end of the bolt 2; It is furthermore advantageous if the boot latch 7 is arranged to be interchangeable on the angular offset '6 or on the pressure member 2, as the case may be, so that suitable latches can always be provided for the particular ski boot that may be used.
  • a ball 9 is provided which preferably engages an inclined plane 10.
  • a wedge or other detent means could be provided in lieu of the ball.
  • the ball 9 is held by the inclined surface 11 of a member 13 which is spring biased by a spring 12.
  • another ball 15 or the like is provided 'in a longitudinal groove 14 of the pressure member which is likewise under the pressure of a spring indicated at 16. The tension forces of the springs 12, 16 can be adjusted with great precision to the desired strength of the release device by means of setting nuts 17, 18.
  • the boot 8 has a tendency to swing the boot latch 7 and the safety head laterally or to turn the pressure member 2 about its longitudinal axis by means of the angular member 6. If this force exceeds the counter pressure of spring 16, then the ball 15 disengages the groove 14, pressure member 2 moves pivotally and the boot latch-7 is moved laterally with the angular member and is raised so that the boot is given an opportunity by further lateral turning to become disengaged from the ski 21 or from the binding.
  • the boot latch is rotatably supported on the angular offset so that in the event of lateral movement of the shoe it also moves laterally, which furthermore facilitates the release.
  • a preferred embodiment of the invention furthermore provides that in the event of turning of the'pressure mem: her about its longitudinal axis also the detent against longitudinal displacement is eliminated.
  • the forward end 2 of the pressure member 2 may, for example, be provided with lateral recesses or flat surfaces 20 so that even a minor turn of the pressure member 2 is sufiicient to remove the detent means, such as ball 9, out of the range of the forward end of the pressure member 2.
  • the ball 9 then slides laterally along thepressure member, i.e., it permits .the longitudinal displacement thereof. (see FIG. 4b).
  • the pressure member may also act on the automatic release member 22 of a tensioner 23 known per se.' The release member 22 is held in the operative position (FIG. 7
  • a spring 24 which is likewise adjustable and covers the end of the pressure member 28 which faces the tensioner from the frontandfrom the sides so that with any forward displacement as well as also in the event of a twisting or turning movement of the pressure member 28 against'the effect of the spring 24 it is also moved upwardly. This then brings the connection point 25 of the plunger 26 that extends into the forward end of the pressure member beyond its position of dead center and thereupon the tensioner' is released by the pressure of the tensioner spring 27.
  • the pressure member 28 may in accordance with this embodiment also be located in a hollow shell 28.
  • a screw head 29 is provided that may be threaded into the pressure member 28 and it carries the boot latch 7.
  • the tension of the spring 27 may be changed by varying the threaded engagement between the part 29 and the part 28.
  • the hollow shell 28 is pivotally supported in the housing 31 of the protection-or safety head by means of a pin 30 so that during turning or twisting falls it swings outwardly (FIGS. 66 and 8b).
  • a pin 30 As illustrated in the drawing (FIGS. Strand 8b) the lateral edge 22' of the release member 22 is suitably raised from the pressure member 28 and the release of the tensioner is effected. The same thing occurs if the pressure member is only'moved in longitudinal direction because then its forwardend 28" also raises the release member 22.
  • the spring 24 is disposed in an extension 31 of the housing 31.
  • This extension is provided with an internal thread in which the adjusting screw 32 is threadedly received.
  • a small bolt 33 extends outwardly of the housing against the release member 22. If the set screw 32 is turned to tension spring 24, then the spring pressure on bolt 33 is increased which also increases the pressure on release member 22. As a result, the safety head is only released by a greater torsional force exerted on it.
  • the setting of the release for forward falls is effected by means of screw 29. If this screw is turned far into sleeve 28, the spring 27 is further compressed and the spring pressure increased so that in the event of a forward fall the release operates only after a greater forward force is applied.
  • Safety head for ski bindings comprising release means operative in response to forward as well as turning falls to efiect release of the foot, said release means including a closed housing, a pressure member extending longitudinally of and into said housing and being slidable relative to said housing and rotatable about a horizontal axis in said housing, a boot latch supported externally of said housing at one'end of said pressure member, and spring loaded locking means retaining said pressure member and thereby said boot latch in engagement with the front end of the ski boot, said locking means including a first spring adapted to yield to twisting forces and a second spring adapted to yield to forwardforces on said pressure member.
  • Safety head for ski bindings comprising release means operative in response to forward as Well as turning falls to effect release of the foot, said release means including a closed housing, a pressure memebr extending longitudinally of and into said housing and being slidable relative to said housing and rotatable about a horizontal axis in said housing, a boot latch supported externally of said housing at one end of said pressure member, and spring loaded locking means retaining said pressure member and thereby said boot latch in engagement with the front end of the ski boot, said locking means including a first spring adapted to yield to twisting forces and a second spring adapted to yield to forward forces on said pressure member, and said pressure member being in the form of a bolt and having an offset defining a lever supporting said boot latch.
  • Safety head for ski bindings comprising release means operative in response to forward as well as turning falls to effect release of the foot, said release means including a closed housing, a pressure member extending longitudinally of and into said housing and being slidable relative to said housing and rotatable about a horizontal axis in said housing, a boot latch supported externally of said housing at one end of said pressure member, and spring loaded locking means retaining said pressure member and thereby said boot latch in engagement with the front end of the ski boot, said locking means including a first spring adapted to yield to twisting forces and a second spring adapted to yield to forward forces on said pressure member, and said boot latch being removably sup ported on said pressure member.
  • Safety head for ski bindings comprising release means operative in response to forward as well as turning falls to effect release of the foot, said release means including a closed housing, a pressure member extending longitudinally of and into said housing and being slidable relative to said housing and rotatable about a horizontal axis in said housing, a boot latch supported externally of said housing at one end of said pressure member, and spring loadedlocking means retaining said pressure mem ber and thereby said boot latch in engagement with the front end of the ski boot, said locking means including a first spring adapted to yield to twisting forces and a second spring adapted to yield to forward forces on said pressure member, said spring loaded locking means comprising a longitudinal groove in said pressure member, said first spring applying a force in a direction transversely of said pressure member and a ball between said first spring and said groove, and a spring loaded member including said second spring applying a force effective in axial direction of said pressure member, said second spring being disposed at the forward end of said housing.
  • Safety head for ski bindings comprising release means operative in response to forward as well as turning falls to effect release of the foot, said release means including a closed housing, a pressure member extending longitudinally of and into said housing and being slidable relative to said housing and rotatable about a horizontal axis in said housing, a boot latch supported externally of said housing at one end of said pressure member, and spring loaded locking means retaining said pressure member and thereby said boot latch in engagement with the front end of the ski boot, said locking means including a first spring adapted to yield to twisting forces and a second spring adapted to yield to forward forces on said pressure member, said spring loaded locking means comprising a longitudinal groove in said pressure member, said first spring applying a force in a direction transversely of said pressure member and a first ball between said first spring and said groove, and a spring loaded member including said .second spring applying a force effective in axial direction of said pressure member, said second spring being disposed at the forward end of said housing, said spring loaded member being a detent such as a
  • Safety head for ski bindings comprising release means operative in response to forward as well as turning falls to effect release of the foot, said release means including a closed housing, a pressure member extending longitudinally of and into said housing and being slidable relative to said housing and rotatable about a horizontal axis in said housing, a boot latch supported externally of said housing at one end of said pressure member, and spring loaded locking means retaining said pressure member and thereby said .boot latch in engagement with the front end of the ski boot, said locking means including a first spring adapted to yield to twisting forces and a second spring adapted to yield to forward forces on said pressure member, said spring loaded locking means comprising a longitudinal groove in said pressure member, said first spring applying a force in a direction transversely of said pressure member and a first ball between said first spring and said groove, and a spring loaded member including said second spring applying a force effective in axial direction of said pressure member, said second spring being disposed at the forward end of said housing, said spring loaded member being a detent such as a
  • Safety head for ski bindings comprising release means operative in response to forward as well as turning falls to effect release of the foot, said release means ineluding a closed housing, a pressure member extending longitudinally of and into said housing and being slidable relative to said housing and rotatable about a horizontal axis in said housing, a boot latch supported externally of said housing at one end of said pressure member, and spring loaded locking means retaining said pressure memher and thereby said boot latch in engagement with the front endof the ski boot, said locking means including a first spring adapted to yield to twisting forces and a second spring adapted to yield to forward forces on said pressure member, said spring loaded locking means comprising a longitudinal groove in said pressure member, said first spring applying a force in a direction transversely of said pressure member and a ball between said first spring and said groove, and a spring loaded member including said second spring applying a force effective in axial direction of said pressure member, said second spring being disposed at the forward end of said housing, said longitudinal groove being of a length permitting
  • Safety head for ski bindings comprising release means operative in response to forward as well as turning falls to effect release of the-foot, said release means including a closed housing, a pressure member extending longitudinally of and into said housing and being slida'ble relative to said housing and rotatable about a horizontal axis in said housing, a boot latch supported externally of said housing at one end of said pressure member, and spring loaded locking means retaining said pressure member and thereby said boot latch in engagement with the front end of the ski boot, said locking means including a first spring adapted to yield to twisting forces and a second spring adapted to yield to forward forces on said pressure member, said locking means being adapted to oppose and to yield to forward and rotational pressures on said pressure member, said pressure member being of gener- 8' r r a ally cylindrical conformation and said second spring means being disposed in said pressure member, said safety head having a tensi-oner pivotally mounted at the forward end of said safety head, a tensioner release member pivotally supported above the forward end of'
  • said pressure member includes a threadedl member having one end in threaded engagement with said pressure member and wth said second spring means and being operative to adjust the pressure of said second spring means and said boot latch being releasably supported by the other end of said threaded member.

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  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
US255407A 1962-02-07 1963-01-31 Safety head for ski bindings Expired - Lifetime US3194573A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEU0008682 1962-02-07

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Publication Number Publication Date
US3194573A true US3194573A (en) 1965-07-13

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US255407A Expired - Lifetime US3194573A (en) 1962-02-07 1963-01-31 Safety head for ski bindings

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US (1) US3194573A (fr)
CH (1) CH433078A (fr)
DE (1) DE1428980A1 (fr)
FR (1) FR1346751A (fr)
GB (1) GB1025998A (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3467407A (en) * 1966-08-27 1969-09-16 Paul Unger Safety binding with double crank means
US3544124A (en) * 1967-11-20 1970-12-01 Jean Joseph Alfred Beyl Safety ski binding
US3671053A (en) * 1968-07-29 1972-06-20 Smolka & Co Wiener Metall Ski binding
US20230016853A1 (en) * 2021-07-13 2023-01-19 Atk Sports S.R.L. Toe-piece of a ski binding for ski mountaineering

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH618885A5 (fr) * 1976-10-07 1980-08-29 Bernhard Kirsch
FR2416025A2 (fr) * 1978-01-31 1979-08-31 Bonfils Juy Patrick Dispositif de butee avant de securite pour ski
FR2464727A1 (fr) * 1979-09-14 1981-03-20 Look Sa Butee avant de fixation de ski

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2573955A (en) * 1949-01-13 1951-11-06 Mitchell H Cubberley Safety ski binding
US2698757A (en) * 1949-07-05 1955-01-04 Bernard E Berlenbach Safety binding for ski runners
US2899211A (en) * 1955-05-07 1959-08-11 salomon
US2950119A (en) * 1957-02-22 1960-08-23 Alfred Gembruch K G Ski binding
FR1229272A (fr) * 1958-07-07 1960-09-06 Attenhofer A G A Perfectionnements apportés aux attache-ski de sûreté avec tendeur établi à l'avant
US3095210A (en) * 1960-11-02 1963-06-25 Partridge S Models Ltd Ski bindings

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2573955A (en) * 1949-01-13 1951-11-06 Mitchell H Cubberley Safety ski binding
US2698757A (en) * 1949-07-05 1955-01-04 Bernard E Berlenbach Safety binding for ski runners
US2899211A (en) * 1955-05-07 1959-08-11 salomon
US2950119A (en) * 1957-02-22 1960-08-23 Alfred Gembruch K G Ski binding
FR1229272A (fr) * 1958-07-07 1960-09-06 Attenhofer A G A Perfectionnements apportés aux attache-ski de sûreté avec tendeur établi à l'avant
US3095210A (en) * 1960-11-02 1963-06-25 Partridge S Models Ltd Ski bindings

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3467407A (en) * 1966-08-27 1969-09-16 Paul Unger Safety binding with double crank means
US3544124A (en) * 1967-11-20 1970-12-01 Jean Joseph Alfred Beyl Safety ski binding
US3671053A (en) * 1968-07-29 1972-06-20 Smolka & Co Wiener Metall Ski binding
US20230016853A1 (en) * 2021-07-13 2023-01-19 Atk Sports S.R.L. Toe-piece of a ski binding for ski mountaineering
US11806605B2 (en) * 2021-07-13 2023-11-07 Atk Sports S.R.L. Toe-piece of a ski binding for ski mountaineering

Also Published As

Publication number Publication date
DE1428980A1 (de) 1969-02-20
FR1346751A (fr) 1963-12-20
GB1025998A (en) 1966-04-14
CH433078A (de) 1967-03-31

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