US3865388A - Safety binding for releasably securing a boot to a ski - Google Patents

Safety binding for releasably securing a boot to a ski Download PDF

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Publication number
US3865388A
US3865388A US369350A US36935073A US3865388A US 3865388 A US3865388 A US 3865388A US 369350 A US369350 A US 369350A US 36935073 A US36935073 A US 36935073A US 3865388 A US3865388 A US 3865388A
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United States
Prior art keywords
axle
boot
transverse
lever
ski
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
US369350A
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English (en)
Inventor
Gaston Haldemann
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Haldemann SA
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Haldemann SA
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Publication date
Application filed by Haldemann SA filed Critical Haldemann SA
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Publication of US3865388A publication Critical patent/US3865388A/en
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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
    • A63C9/086—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings using parts which are fixed on the shoe of the user and are releasable from the ski binding
    • 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
    • A63C9/081—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with swivel sole-plate

Definitions

  • a safety binding for a ski has a vertical post 4 over [22] Filed; June 12, 1973 which a plate 5 having front and rear boot engaging ridges 32, 33 is rotatably mounted.
  • the post has a rear [2]] Appl' 369350 transverse groove which accomodates a spring piston biased half-axle 16.
  • a retention lever 18 is secured Foreign Application Priority Data to the half-axle and extends forward over the post to July 7, 1972 Switzerland 10261/72 engage P urge gF S Y transfrsg P 52 US. Cl 280/1l,35 D, 280/ll.35 T, .”l m a recess e a e 780 I Y binding 15 operated by a pivoted cam lever 38 which withdraws the piston 10 and allows spring 26 in the [5 1"- CL v i i center of the post to push the ever upward about Field of Search-280 l the half-axle. Quick release in case of accident is facili- 280N l T?
  • the safety binding according to the invention is characterized in that it comprises a base plate integral with the ski and a vertical axle on which pivots a rotating plate. Arranged at the front and rear of the rotating plate are two catches engaged in two transverse grooves in the sole of the boot.
  • This sole is characterized in that it is provided with a recess in which is arranged a retaining element pressed towards the rotating plate by another retaining element governed by the pressure of a spring mounted on the rotating plate.
  • FIG. 1 is a vertical sectional view of the binding substantially along the line I-I of FIG. 2,
  • FIG. 2 is a horizontal sectional view of the binding substantially along the line II--II of FIG. 1,
  • FIGS. 3 and 4 are vertical sectional views corresponding'to FIG. 1 but showing the positions of the device in the event of a forward fall and a backward fall,
  • FIG. 5 is a horizontal sectional view corresponding to FIG. 2 but showing the position of the device in the event of a sharp twist
  • FIG. 6 is a vertical sectional view of a rear part of the device showing a lever in position for removal of the boot.
  • the binding shown comprises a base plate 1 integral with the ski 2 on which it is secured by way of the screws 3, only one of which is shown.
  • a vertical pivot post 4 is integral with the base plate 1 and acts as a pivot for a rotating plate 5 on which a boot 6 is secured.
  • the base plate 1 is provided on its upper surface with a sliding zone 7, for example, a Teflon coating, to reduce friction between the two plates 1 and .5.
  • the upper surface of the rotating plate 5 is provided with a groove 8 in which is embedded the base of a housing 9 containing a piston 10 with its shaft 11 enclosed by a dish-shaped compression spring washer commonly known as a Belleville.
  • the housing 9 is integral with 2' the rotating plate 5 to which it is secured by way of screws.l3, only one of which is shown.
  • the vertical pivot post 4 which acts as a pivot'for the rotating plate 5 and the housing 9, is provided with a peripheral groove 14 and a rear, transverse groove 15' in which is housed a part of a transverse axle 16, the ends of which are integral with the two opposite walls 17 of a retention lever 18 having a U-shaped profile.
  • the transverse axle 16 is provided with a groove 19 in which the front part of the piston 10 engages.
  • the base 20 of the groove 19 is flat and forms an acute at angle with the front plane 21 of the piston 10. As aeresult. the force of the spring tends to cause the axle 16 to pivot with the lever 18 in the directions of the arrow 22, keeping the lever 18 on a retention axle 23 integral with the boot 6.
  • the vertical pivot post 4 is provided with a central hole 24', in which slides. a piston 25, which, under the action of a small spring 2-6tendsto push back the lever 18 in the opposite direction to the arrow 22. This is only possible when the spring 12 is decompressed.
  • the hole 24 is plugged at the bottom by a threaded stopper 27.
  • the sole 28 of the boot 6 is provided at the lower part with a recess 29, in the front part of-which a retention axle 23 is located.
  • the retention lever 18 normally exerts pressure on the retention axle 23 thereby pressing the sole 28 on the rotating plate 5.
  • the sole is also provided with two transverse grooves 30 and 31 in which are engaged two transverse catches 32 and 33 having a partially cylindrical profile. These catches are arranged at the front end and rear end of the rotating plate 5.
  • the rear end of the spring 12 which is lodged in the housing 9 abuts against a sliding head 34 of a screw 35 provided with a regulating screw 36 which the spring 12 pushes against a cam 37 formed by two parallel walls of a lever 38 for the attachment and removal of the boots.
  • the lever 38 pivots about a transverse axle 39 provided at the lower end of the housing 9.
  • the cam 37 has two support surfaces 40 and 41. These are arranged at different distances from the axle 39. In the position for attaching the boot (FIGS. 1-5), the surface 40, which is a relatively large distance from the axle 39 is in contact with the screw 36. As a result, the spring 12 is compressed and keeps the retention lever 18 in its normal position (FIGS. 1 and 2).
  • FIGS. 3-5 With reference to FIGS. 3-5, the operation of the device in the event of an accident will now be described.
  • the vertical axis is shown as a main axle, the piston 25 and the spring 26 having no particular role as far as safety is concerned.
  • the sole 28 When a forward fall occurs, the sole 28 begins to pivot about the front catch 32 until its forward end touches the ski 2, as shown by the continuous lines in FIG. 3.
  • the retention lever 18 was raised when the spring 12 was compressed and it will be noticed that the angle a has grown larger.
  • the sole then continues to pivot on the ski, as shown at 28' by the line of dots and dashes, so that the boot is then completely detached from the securing device.
  • the fact that the boot pivots from 28 to 28' on the end of the sole has no particular role in the securing operation. In fact, due to the play between the parts, the force on the axle 23 is lower in this position.
  • FIG. 4 shows what happens in the case of a backward fall.
  • the sole 28 first pivots on the rear catch 33 and then on its rear edge which, at the level of the recess 29 enters into contact with the housing 9 as shown at 28, until the sole is completely detached from the rotating plate 5.
  • the skier may possibly still return to a normal position after beginning to fall. It will be noted that the movement of the boot is fairly appreciable and consequently the effort on the part of the leg of the skier relatively small.
  • FIG. 5 illustrates the case of a strong torsional force acting between the ski and the boot 6.
  • the rotating plate 5 and the housing 9 pivot about the vertical axle 4 so that the transverse axle 16 tends to leave the transverse groove 15 of the vertical axle 4, pivoting at the intersection 42 of this groove 15 with the peripheral grove 14.
  • the retention lever 18 is pushed backwards disengaging the retention axle 23 against the force of the spring 12, which tends to prevent the return movement of the piston 10.
  • the retention axle 23 is not yet completely disengaged but it is obvious that if the plate 5 rotates a little further, or if the torsional movement is followed as it generally is by a forward or backward fall, the retention lever 18 will completely release the retention axle 23.
  • the binding arrangement described is extremely simple and efficient. It has less parts than the normal binding devices comprising a number of different parts which have to be separately rendered integral with the ski.
  • the parts of the present binding device are dimensioned so that the ratio HzV is between ]:3 and 1:4.
  • the operation of the binding device is practically completely independent of the bending and torsional movements of the ski 2. It is no longer necessary to carry out delicate regulating operations to adapt the binding device to the bootthese regulating operations often being carried out without due attention.
  • the binding device can be mounted on the ski by the ski manufacturer.
  • the sliding zone 7 prevents uncontrollable sliding friction which renders illusory the regulation of the torsional force of disengagement in the case of the known devices.
  • the housing 9 which contains lubricating oil, is practically seal-tight so that the axles 4 and 16, the piston 10 and the spring 12 are always in perfect operating condition.
  • the catches 32 and 33 may possibly be arranged on the rotating plate 5 in such a manner as to be displaceable on this plate in a regulatable manner in the longitudinal direction.
  • a safety binding assembly for releasably securing a boot to a ski, comprising:
  • a boot (6) having two transverse grooves (30, 31) in its sole (28) adapted to engage the front and rear catches, and a transverse pin (23) mounted in a recess (29) in the sole,
  • transverse axle (16) partially lodged in the transverse groove of the vertical axle and having a surface (20),
  • a sliding piston (10) mounted in the housing and having a front surface (21) bearing against the surface of the transverse axle and forming an acute angel (a) therewith, and
  • a safety binding assembly characterized in that the state of compression of said spring (12) depends on the position of a cam lever (38) for the attachment and detachment of the boot forming a cam (37) having two positions, the one for the attachment of a boot and the other for removal of a boot.
  • a safety binding assembly characterized in that the cam (37) acts on a regulating nut (36) disposed on a screw (35) against which abuts an end of said spring (12).
  • a safety binding assembly characterized in that the vertical axle (4) is provided with a central hole (24) in which are disposed a piston (25) and a spring (26) pushing said piston against said lever (18) to move it away from the transverse pin (23) when the cam lever (38) is in position for removal of the boot.
  • a safety binding assembly characterized in that, in the event of a forward or backward fall, the sole pivots about the front catch or the rear catch (32 and 33 respectively), the transverse pin (23) raising the lever (18).
  • a safety binding assembly characterized in that, in the case of a torsional movement between the boot and the ski, the transverse axle (16) partially leaves the transverse groove (15) of the verticle axle (4), pivoting at an intersection (42) of this groove (15) with a peripheral groove (14) of the verticle axle (4) and consequently displacing the lever (18) is a rearward direction.
  • a safety binding assembly according to claim 1 characterized in that a sliding zone (7) is disposed between the base plate (1) and the rotating plate (5).

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  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
US369350A 1972-07-07 1973-06-12 Safety binding for releasably securing a boot to a ski Expired - Lifetime US3865388A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1026172A CH554181A (fr) 1972-07-07 1972-07-07 Dispositif de fixation de securite maintenant amoviblement une chaussure sur un ski.

Publications (1)

Publication Number Publication Date
US3865388A true US3865388A (en) 1975-02-11

Family

ID=4361259

Family Applications (1)

Application Number Title Priority Date Filing Date
US369350A Expired - Lifetime US3865388A (en) 1972-07-07 1973-06-12 Safety binding for releasably securing a boot to a ski

Country Status (8)

Country Link
US (1) US3865388A (de)
JP (1) JPS4951034A (de)
AT (1) AT323028B (de)
CA (1) CA983964A (de)
CH (1) CH554181A (de)
DE (1) DE2324024A1 (de)
FR (1) FR2191918B3 (de)
IT (1) IT987637B (de)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3945656A (en) * 1975-05-15 1976-03-23 Rohlin William F Ski binding
US4182524A (en) * 1977-08-26 1980-01-08 Look S.A. Safety ski binding
US4278269A (en) * 1978-07-13 1981-07-14 Look Combined ski boot and safety binding
US4494769A (en) * 1981-06-30 1985-01-22 Ste Look Ski-binding toe abutment member for a ski boot having a truncated sole
WO1991014483A1 (en) * 1990-03-19 1991-10-03 Broughton Timothy C Ski binding
US20040021278A1 (en) * 1999-01-11 2004-02-05 Lyden Robert M. Wheeled skate with step-in binding and brakes
US20040173994A1 (en) * 2003-02-18 2004-09-09 Howell Richard J. Alpine ski binding heel unit
US20120074670A1 (en) * 2010-09-28 2012-03-29 Skis Rossignol Boot-Attachment Device on a Ski with Safety Interface
US10016672B2 (en) * 2014-01-24 2018-07-10 Pierre MOUYADE Self-locking binding for telemark ski, touring ski or cross-country ski

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH581485A5 (de) * 1974-06-24 1976-11-15 Gertsch Ag Zug
FR2282823A1 (fr) * 1974-08-30 1976-03-26 Salomon & Fils F Chaussure de ski concue pour se deplacer librement apres declenchement dans une fixation comportant une machoire de retenue laterale
FR2295768A1 (fr) * 1974-12-23 1976-07-23 Mitchell Sa Ensemble pour la pratique du ski, compose d'une chaussure et d'une plaque sous-pied
FR2428448A2 (fr) * 1977-08-26 1980-01-11 Beyl Jean Joseph Alfred Fixation de securite pour ski
AT380796B (de) * 1984-05-25 1986-07-10 Amf Sport Freizeitgeraete Sicherheitsskibindung

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3244431A (en) * 1961-05-08 1966-04-05 Smolka & Co Wiener Metall Ski binding

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3244431A (en) * 1961-05-08 1966-04-05 Smolka & Co Wiener Metall Ski binding

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3945656A (en) * 1975-05-15 1976-03-23 Rohlin William F Ski binding
US4182524A (en) * 1977-08-26 1980-01-08 Look S.A. Safety ski binding
US4278269A (en) * 1978-07-13 1981-07-14 Look Combined ski boot and safety binding
US4494769A (en) * 1981-06-30 1985-01-22 Ste Look Ski-binding toe abutment member for a ski boot having a truncated sole
WO1991014483A1 (en) * 1990-03-19 1991-10-03 Broughton Timothy C Ski binding
US5066036A (en) * 1990-03-19 1991-11-19 Broughton Timothy C Ski binding
US7175187B2 (en) 1999-01-11 2007-02-13 Lyden Robert M Wheeled skate with step-in binding and brakes
US20040021278A1 (en) * 1999-01-11 2004-02-05 Lyden Robert M. Wheeled skate with step-in binding and brakes
US20070090613A1 (en) * 1999-01-11 2007-04-26 Lyden Robert M Wheeled skate
US7464944B2 (en) 1999-01-11 2008-12-16 Lyden Robert M Wheeled skate
US20040173994A1 (en) * 2003-02-18 2004-09-09 Howell Richard J. Alpine ski binding heel unit
US20080179862A1 (en) * 2003-02-18 2008-07-31 Kneebinding, Inc. Alpine ski binding heel unit
US7887084B2 (en) 2003-02-18 2011-02-15 Kneebinding, Inc. Alpine ski binding heel unit
US20110193324A1 (en) * 2003-02-18 2011-08-11 Kneebinding, Inc. Alpine ski binding heel
US8955867B2 (en) 2003-02-18 2015-02-17 Kneebinding, Inc. Alpine ski binding heel unit
US9687724B2 (en) 2003-02-18 2017-06-27 Kneebinding, Inc. Alpine ski binding heel unit
US20120074670A1 (en) * 2010-09-28 2012-03-29 Skis Rossignol Boot-Attachment Device on a Ski with Safety Interface
US8585074B2 (en) * 2010-09-28 2013-11-19 Skis Rossignol Boot-attachment device on a ski with safety interface
US10016672B2 (en) * 2014-01-24 2018-07-10 Pierre MOUYADE Self-locking binding for telemark ski, touring ski or cross-country ski

Also Published As

Publication number Publication date
CA983964A (en) 1976-02-17
JPS4951034A (de) 1974-05-17
AT323028B (de) 1975-06-25
FR2191918B3 (de) 1976-06-18
FR2191918A1 (de) 1974-02-08
IT987637B (it) 1975-03-20
CH554181A (fr) 1974-09-30
DE2324024A1 (de) 1974-01-24

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