US3333858A - Safety jaw for ski bindings - Google Patents

Safety jaw for ski bindings Download PDF

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Publication number
US3333858A
US3333858A US499526A US49952665A US3333858A US 3333858 A US3333858 A US 3333858A US 499526 A US499526 A US 499526A US 49952665 A US49952665 A US 49952665A US 3333858 A US3333858 A US 3333858A
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United States
Prior art keywords
jaw member
jaw
base plate
ski
pressure
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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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US499526A
Inventor
Poiger Hans
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Heinrich Wunder GmbH and Co KG
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Heinrich Wunder GmbH and Co KG
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Application filed by Heinrich Wunder GmbH and Co KG filed Critical Heinrich Wunder GmbH and Co KG
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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
    • A63C9/085—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
    • A63C9/08535—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
    • A63C9/0805—Adjustment of the toe or heel holders; Indicators therefor

Definitions

  • a ski binding including a safety jaw mounted for pivotal movement about a vertical axis and also movable longitudinally relative to a base to enable both lateral swinging and forward quick release movement of said jaw upon excessive lateral pressure thereon.
  • This invention relates to a safety jaw for ski bindings, which jaw is pivotally moved outwardly about a vertical axis under excessive lateral pressure and at the same time performs a forward movement in the longitudinal direction of the ski.
  • An important object of the invention relates to a particularly simple manufacture of said safety jaw, which ensures a satisfactory function even when it is soiled or iced and independently of the wear of components of the jaw assembly after long use.
  • this is achieved in that the baseplate which guides the pressure jaw has a rolling contact cam, which is rigidly connected to the baseplate and has symmetrical concave faces, the apex of which engages a cylindrical stop portion of the pivoted pressure jaw member.
  • the symmetrical, concave surfaces of the rolling contact cam are laterally open and not limited by guide means so that the release of the jaw will not be interfered with.
  • FIG. 1 is a central sectional view taken in the longitudinal direction of the safety jaw assembly and
  • FIG. 2 is a horizontal sectional View taken on line lI-II of FIG. 1.
  • a baseplate 2 is connected by screws 12 to the ski 1.
  • a jaw member 3, which engages the boot, suitably the toe portion thereof, is pivoted to the baseplate 2.
  • a screw 4 is threaded from below into the jaw member and has at its free end a flat head 5, which is guided in a recess 6 of the baseplate 2 and bears on the underside thereof.
  • a rolling contact cam 7 protrudes above the baseplate 2. This cam is integral with the baseplate 2 and has laterally symmetrical rolling contact faces 8, 9, which are concave and converge toward the boot. The remaining side face portion 10 is half-cylindrical.
  • the cam 7 extends into a substantially oval recess 11 of the jaw member 3.
  • This recess has adjacent to the surface portion 10 a surface which corresponds to said surface portion 10.
  • the remaining portion of the side wall of the recess 11 surrounds the rolling contact faces 8, 9 with a clearance.
  • An elongated hole 13 is provided in the longitudinal center plane of the cam 7. The screw 4 is guided in said elongated hole for movement in the longitudinal direction of the ski.
  • the converging end portions of the rolling contact faces 8, 9 form a stop 14, which in the tightened position of the jaw assembly bears on a cylindrical counterstop 15 which is mounted in the jaw member 3 and serves for guiding a ball detent.
  • This detent comprises a ball 17, which is under the pressure of a spring 16 and engages a notch 18 of the baseplate 2 to hold like a snap lock the jaw member in its clamping position.
  • a screw 19 is screwed in the jaw member 3 and serves for readjusting the initial stress of the spring 16 and consequently for determining the lateral pressure required to cause the jaw assembly to release the boot.
  • the jaw member After the outward pivotal movement of the jaw member to the release position, the jaw member can easily be restored to its snapped-in normal position simply by a reverse rotation of the pressure jaw member 3 into the normal position shown in the drawing.
  • a safety jaw assembly for ski bindings comprising a base plate attachable to a ski, a pivot extending upwardly from said base plate, a pressure jaw member movable on said pivot about a vertical axis relative to said base plate, a counter stop on said pressure jaw member, a cam protruding above said base plate and having concave guide faces which are symmetrical with respect to the longitudinal axis of the jaw member and converge toward the boot end to form a stop engagable with said counterstop in the clamping position of said jaw member, said counterstop moving in rolling contact with the guide surfaces during a pivotal movement of said pressure jaw member, a snap lock for releasably holding the pressure jaw member in the clamping position, said jaw member having in its underside a substantially oval recess which has in its portion remote from the skiing boot a surface concentrically surrounding said pivot and which corresponds to a portion of the lateral surface of said cam, and said guide faces being surrounded with a clearance by that portion of the surface of said recess which is
  • a safety jaw assembly according to claim 1, wherein said cam is provided with an elongated hole, and said pivot comprises a bolt which is guided in said cam hole and has at its lower end a head which bears on the underside of said base plate.

Landscapes

  • Clamps And Clips (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)

Description

g- 1967 H. POIGER SAFETY JAW FOR SKI BINDINGS Filed Oct.
United States Patent 3,333,858 SAFETY JAW FOR SKI BINDINGS Hans Poiger, Haar, near Munich, Germany, assignor to Heinrich Wunder, Rothschwaige, near Dachau, Germany Filed Oct. 21, 1965, Ser. No. 499,526 Claims priority, application Germany, July 15, 1965, W 39,556 2 Claims. (Cl. 280-1135) ABSTRACT OF THE DISCLOSURE A ski binding including a safety jaw mounted for pivotal movement about a vertical axis and also movable longitudinally relative to a base to enable both lateral swinging and forward quick release movement of said jaw upon excessive lateral pressure thereon.
This invention relates to a safety jaw for ski bindings, which jaw is pivotally moved outwardly about a vertical axis under excessive lateral pressure and at the same time performs a forward movement in the longitudinal direction of the ski.
An important object of the invention relates to a particularly simple manufacture of said safety jaw, which ensures a satisfactory function even when it is soiled or iced and independently of the wear of components of the jaw assembly after long use. According to a special feature of the invention this is achieved in that the baseplate which guides the pressure jaw has a rolling contact cam, which is rigidly connected to the baseplate and has symmetrical concave faces, the apex of which engages a cylindrical stop portion of the pivoted pressure jaw member. According to another feature of the invention the symmetrical, concave surfaces of the rolling contact cam are laterally open and not limited by guide means so that the release of the jaw will not be interfered with.
An embodiment of the safety jaw assembly according to the invention is shown on the drawing. FIG. 1 is a central sectional view taken in the longitudinal direction of the safety jaw assembly and FIG. 2 is a horizontal sectional View taken on line lI-II of FIG. 1.
A baseplate 2 is connected by screws 12 to the ski 1. A jaw member 3, which engages the boot, suitably the toe portion thereof, is pivoted to the baseplate 2. For this purpose, a screw 4 is threaded from below into the jaw member and has at its free end a flat head 5, which is guided in a recess 6 of the baseplate 2 and bears on the underside thereof. A rolling contact cam 7 protrudes above the baseplate 2. This cam is integral with the baseplate 2 and has laterally symmetrical rolling contact faces 8, 9, which are concave and converge toward the boot. The remaining side face portion 10 is half-cylindrical. The cam 7 extends into a substantially oval recess 11 of the jaw member 3. This recess has adjacent to the surface portion 10 a surface which corresponds to said surface portion 10. The remaining portion of the side wall of the recess 11 surrounds the rolling contact faces 8, 9 with a clearance. An elongated hole 13 is provided in the longitudinal center plane of the cam 7. The screw 4 is guided in said elongated hole for movement in the longitudinal direction of the ski.
The converging end portions of the rolling contact faces 8, 9 form a stop 14, which in the tightened position of the jaw assembly bears on a cylindrical counterstop 15 which is mounted in the jaw member 3 and serves for guiding a ball detent. This detent comprises a ball 17, which is under the pressure of a spring 16 and engages a notch 18 of the baseplate 2 to hold like a snap lock the jaw member in its clamping position. A screw 19 is screwed in the jaw member 3 and serves for readjusting the initial stress of the spring 16 and consequently for determining the lateral pressure required to cause the jaw assembly to release the boot.
If the pressure jaw member 3 is pivotally moved outwardly after the ball detent mechanism 16, 17, '18 has been overcome, the bolt-like counterstop 15 of the jaw member 3 slides in the direction of arrow b along one of the rolling contact faces 8 and 9 until the screw 4 threaded in the pressure jaw member 3 engages the forward end of the elongated hole 13 in the cam 7. Thus, the screwthreaded mounting pin 4, which is also connected to the pivoted jaw member 3, is moved in the longitudinal direction of the ski in the slot 13 while the counterstop screw 15 consisting in the illustrated embodiment of a screw slides along one of the concave cam surfaces 8 or 9.
After the outward pivotal movement of the jaw member to the release position, the jaw member can easily be restored to its snapped-in normal position simply by a reverse rotation of the pressure jaw member 3 into the normal position shown in the drawing.
What is claimed is:
1. A safety jaw assembly for ski bindings, comprising a base plate attachable to a ski, a pivot extending upwardly from said base plate, a pressure jaw member movable on said pivot about a vertical axis relative to said base plate, a counter stop on said pressure jaw member, a cam protruding above said base plate and having concave guide faces which are symmetrical with respect to the longitudinal axis of the jaw member and converge toward the boot end to form a stop engagable with said counterstop in the clamping position of said jaw member, said counterstop moving in rolling contact with the guide surfaces during a pivotal movement of said pressure jaw member, a snap lock for releasably holding the pressure jaw member in the clamping position, said jaw member having in its underside a substantially oval recess which has in its portion remote from the skiing boot a surface concentrically surrounding said pivot and which corresponds to a portion of the lateral surface of said cam, and said guide faces being surrounded with a clearance by that portion of the surface of said recess which is near the skiing boot.
2. A safety jaw assembly according to claim 1, wherein said cam is provided with an elongated hole, and said pivot comprises a bolt which is guided in said cam hole and has at its lower end a head which bears on the underside of said base plate.
References Cited UNITED STATES PATENTS 3,079,164 2/1963 Deplace 280-1135 3,188,104 6/1965 Magnin 280-1135 3,224,786 12/1965 Tosalli 280-1135 FOREIGN PATENTS 724,055 12/ 1965 Canada.
349,911 12/ 1960 Switzerland.
LEO FRIAGLIA, Primary Examiner.
BENJAMIN HERSH, Examiner.
J. H. BRANNEN, Assistant Examiner.

Claims (1)

1. A SAFETY JAW ASSEMBLY FOR SKI BINDINGS, COMPRISING A BASE PLATE ATTACHABLE TO A SKI, A PIVOT EXTENDING UPWARDLY FROM SAID BASE PLATE, A PRESSURE JAW MEMBER MOVABLE ON SAID PIVOT ABOUT A VERTICAL AXIS RELATIVE TO SAID BASE PLATE, A COUNTER STOP ON SAID PRESSURE JAW MEMBER, A CAM PROTRUDING ABOVE SAID BASE PLATE AND HAVING CONCAVE GUIDE FACES WHICH ARE SYMMETRICAL WITH RESPECT TO THE LONGITUDINAL AXIS OF THE JAW MEMBER AND CONVERGE TOWARD THE BOOT END TO FORM A STOP ENGAGEBLE WITH SAID COUNTERSTOP IN THE CLAMPING POSITION OF SAID JAW MEMBER, SAID COUNTERSTOP MOVING IN ROLLING CONTACT WITH THE GUIDE SURFACES
US499526A 1965-07-15 1965-10-21 Safety jaw for ski bindings Expired - Lifetime US3333858A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEW0039556 1965-07-15

Publications (1)

Publication Number Publication Date
US3333858A true US3333858A (en) 1967-08-01

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US499526A Expired - Lifetime US3333858A (en) 1965-07-15 1965-10-21 Safety jaw for ski bindings

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US (1) US3333858A (en)
AT (1) AT258177B (en)
CH (1) CH435078A (en)
DE (1) DE1478218A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3561781A (en) * 1968-07-31 1971-02-09 Hope Kk Safety ski boot toe fixture
US5236218A (en) * 1989-02-22 1993-08-17 Varpat Patentverwertungs, Ag Ski binding with a holding mechanism for the front and heel jaws

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1403536B1 (en) * 2011-01-28 2013-10-31 Atk Race Srl TALLONIERA FOR A SKI-MOUNTAINEER ATTACK

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH349911A (en) * 1959-03-09 1960-10-31 Reuge Sa Safety ski binding
US3079164A (en) * 1959-08-21 1963-02-26 Place Henri De Safety knock-off devices for ski binders
US3188104A (en) * 1962-04-04 1965-06-08 Secuma Safety device for ski-securing means
US3224786A (en) * 1962-06-14 1965-12-21 Reuge Sa Safety stop for ski attachment
CA724055A (en) * 1965-12-21 Ramillon Rene Securing system of the abutment type for skis

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA724055A (en) * 1965-12-21 Ramillon Rene Securing system of the abutment type for skis
CH349911A (en) * 1959-03-09 1960-10-31 Reuge Sa Safety ski binding
US3079164A (en) * 1959-08-21 1963-02-26 Place Henri De Safety knock-off devices for ski binders
US3188104A (en) * 1962-04-04 1965-06-08 Secuma Safety device for ski-securing means
US3224786A (en) * 1962-06-14 1965-12-21 Reuge Sa Safety stop for ski attachment

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3561781A (en) * 1968-07-31 1971-02-09 Hope Kk Safety ski boot toe fixture
US5236218A (en) * 1989-02-22 1993-08-17 Varpat Patentverwertungs, Ag Ski binding with a holding mechanism for the front and heel jaws

Also Published As

Publication number Publication date
AT258177B (en) 1967-11-10
CH435078A (en) 1967-04-30
DE1478218A1 (en) 1970-04-30

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