US3893685A - Safety ski binding - Google Patents

Safety ski binding Download PDF

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Publication number
US3893685A
US3893685A US474040A US47404074A US3893685A US 3893685 A US3893685 A US 3893685A US 474040 A US474040 A US 474040A US 47404074 A US47404074 A US 47404074A US 3893685 A US3893685 A US 3893685A
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US
United States
Prior art keywords
cylinder
piston
opening
release
movement
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
US474040A
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English (en)
Inventor
Josef Svoboda
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.)
Gertsch AG
Original Assignee
Gertsch AG
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
Application filed by Gertsch AG filed Critical Gertsch AG
Application granted granted Critical
Publication of US3893685A publication Critical patent/US3893685A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • A63C9/0802—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
    • A63C9/001—Anti-friction devices
    • 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
    • A63C9/0805—Adjustment of the toe or heel holders; Indicators therefor
    • 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
    • A63C9/08507—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 plurality of mobile jaws
    • A63C9/08521—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 plurality of mobile jaws pivoting about a vertical axis, e.g. side release
    • 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
    • A63C9/005—Ski bindings with means for adjusting the position of a shoe holder or of the complete binding relative to the ski

Definitions

  • ABSTRACT Safety ski binding with delayed release There is provided a delayed release device for a safety ski binding, applicable to either the toe or heel component thereof, wherein release is momentarily delayed by a dash-pot type device but valving is provided which permits rapid return to normal condition. Movement of the binding part in release direction is opposed both by the usual adjustable resilient means and also by the dash-pot type device which momentarily delays release to a point slightly above the force level for which release has been set.
  • the dash-pot device is provided with valving effecting a delayed action in a binding release direction with a rapid return to the normal condition.
  • the invention relates to a safety ski binding, in which binding elements, as sole or heel holders, are provided with locking mechanisms which lock to a predetermined level of release force the element in its effective position and upon the exceeding of said force then release the element for movement out of effective position together with a retarding device which retards the release movement of the locking member for a short time up to a force level higher than the normal release force, wherein the retarding device is a spring-loaded pneumatic damping cylinder.
  • this known construction has the disadvantage that the throttle opening is constricted in the first zone of movement of the piston.
  • the constructions of such throttle openings are already difficult, and it is yet more difficult to manufacture a throttle opening with a constricted cross section.
  • Throttle openings of this type have, as is known, a diameter of approximately 0.1 mm.
  • a further disadvantage of the known construction lies in that for the retardation and return the same throttle opening is used which results in the return taking as much time as the retarding stroke. Since the time required for the retarding stroke must be ample for its purpose and return, contrastingly, should be carried out quickly, it is not possible to meet both requirements with a single throttle opening.
  • the objective of the invention is to produce a retarding device of the type mentioned above in which a quick return is obtained and in addition provision is made for a device with variable volume and/or open piston.
  • the desired goal is achieved by constructing the piston as a second pneumatic cylinder which has at least one opening which cooperates, if necessary, with a closure element, wherein the closure element preferably contains a throttle opening.
  • the safety ski binding of the invention is thus equipped with a retarding device which can be operated on atmospheric pressure and through this an excessive pressure and the difficulties connected therewith are avoided.
  • the closure element can be constructed as a valve guided in a cylindrical body which also serves as a piston.
  • the closure part of such valve is a hemisphere provided with a throttle opening and the seat of which valve is the opening provided in the cylinder.
  • This construction permits the inner chamber of the cylinder, depending upon the operation of the cylinder piston, to be connected either through only the throttle opening or both through the throttle opening and also through the first opening of the cylinder to the remaining chamber of the retarding device. Depending upon whether the valve closes or opens, the flow between inner chamber and compensating chamber is slow or rapid.
  • a further air-tight piston which can be adjusted in the direction of movement of the piston by means of an adjusting mechanism, such as by a screw which is arranged in the piston rod.
  • This construction makes it possible to enlarge or reduce in size the inner chamber of the cylinder piston between the adjusting rings of the second piston. Thus, the retardation can be adjusted automatically.
  • the rearward end of the cylinder piston can be opened by at least one further throttle opening which can be closed, preferably by a valve.
  • a further characteristic of this embodiment consists in that in the rear wall portion two throttle openings of variable cross section are provided, of which the larger one is provided with a valve which closes in the direction of movement of the retarding device.
  • This construction has the advantage that the closure plate of the cylinder piston can be mounted with the valve separately and the front end with the passage opening is mounted thereafter on the piston part.
  • the present embodiments have received the spring within the compensating chamber.
  • the spring can be arranged outside of the compensating chamber, in which case the piston rod is equipped with a disk which serves as a spring washer.
  • FIG. 1 is a cross-sectional top view of the safety ski binding of the invention
  • FIGS. 2 and 3 illustrate in an enlarged scale the retarding device for FIG. 1 in two positions
  • FIG. 4 illustrates a retarding device with a variable inside space
  • FIG. 5 illustrates an embodiment with a rearwardly open cylinder piston
  • FIG. 6 illustrates a retarding device with a spring which is arranged outside of the cylinder piston.
  • each bent leverlike sole holder carries on one arm two, at least approximately vertical, pins 4, 5 on which rollers 6, 7 are rotatably supportedv
  • the ski boot 8 which is indicated only by dash-dotted lines is supported with its front zone on the rollers 7, the axes of which are spaced less from one another than the axes 3 of the sole holders I, 2.
  • the arms 2 of the sole holders 1, 2 rest on a slide I0 or the like which is under the effect of a spring 9.
  • the spring 9 is simultaneously a part of the retarding device II which will be described in detail below.
  • the boot 8 is further held in its base position by a clamping means which is illustrated by a dash-dotted line.
  • the clamping means 15 is pivotal about an axis 16 and is ar ranged adjustably in elevating direction by means of a screw 17 to adapt same to boot soles of various thicknesses.
  • the entire safety binding is mounted onto the ski I8 by interpositioning a stepping plate 19 by means of screws 20.
  • the retarding device has, as is illustrated in an enlarged scale in FIGS. 2 and 3, a fixed cylinder 21 in which a cylinder piston 22 is arranged movably by means of a piston rod 23 against the force of the spring 9 in the longitudinal direction of the cylinder 21.
  • the cylinder piston 22 has at its front end an opening 24 which can be closed or opened by means of a valve 25.
  • the valve 25 consists of a guide frame 26 which is movably arranged on the front end of the cylinder piston 22 and is equipped with a hemispherical closure element 27 which contains a throttle opening 28.
  • the throttle opening 28 is substantially smaller in relationship to the passage opening 24.
  • the end 103 of slide 10 bears against the free end of piston rod 23 whereby a rightward, as seen in FIG. 1, movement of the slide 10 will be opposed by the spring 9.
  • a further piston 31 is positioned in the cylinder piston 22, which piston 31 has inside of the piston rod 23 a piston rod which is constructed as an adjusting screw 32.
  • the construction and operation of the valve 25 corresponds to the construction according to FIGS. 1 to 3.
  • the volume of the inner chamber 29 of the cylinder piston 22 can be regulated. If the adjusting screw 32 is adjusted in the piston rod 23 toward the front end of the piston cylinder 22, the inner chamber 29 becomes smaller and through this the relationship between inner chamber and compensating chamber becomes smaller. This situation causes the rate of the retardation to become steeper.
  • a cylinder piston 29' is provided which hsa two openings 33 and 34 at its rearward end.
  • the passage 24 is here open, namely without a valve. Instead, a valve closes the larger throttle opening 34, whereby the smaller throttle opening 33 similar to the throttle opening 28 of the valve 25 is always open.
  • the entire arrangement is stored in the rear piston part 36.
  • the operation of this construction corresponds sub stantially to the aforementioned one with the exception that the inner chamber 29 has a small volume and the remaining part of the inner chamber is provided in the form of a rear chamber 29".
  • the spring 9 is arranged outside of the cylinder 21. This makes it possible, at an equally large volume of the compensating chamber 30, to diminish the size of the cylinder 2].
  • the piston operates in a manner generally similar to the piston 36 in FIG. 5.
  • the piston rod 23' is provided in this case with a disk 37 which serves as a spring washer. The operation of this construction corresponds to the already discussed embodiments.
  • a safety ski binding having a binding element with locking means which lock to a predetermined normal level of force said binding element in an effective position and upon exceeding said predetermined normal level of force release said binding element for a movement out of said effective position and retarding means for retarding a release movement of said locking means to a force level higher than a normal release force
  • said retarding means being defined by a pneumatic damping first cylinder having reciprocal piston means therein biased to one end of said first cylinder by a spring
  • said piston means includes means defining a pneumatic second cylinder having means defining at first opening therein. a closure element mounted for movement into and out of engagement in said first opening and means defining a throttle second opening for restricting the movement of gas therethrough, said closure member permitting no gas movement through said first opening in one direction but permitting gas flow therethrough in the other direction.
  • said closure element is a valve member which is guided for movement on said piston means, said valve member having a hemisphere surface provided thereon and having said throttle opening therethrough, said valve member being movable into a seating relation with said first opening.
  • said piston means includes a further air-tight piston inside said second cylinder and adjusting means for adjusting the position of said air-tight piston within said second cylinder.
  • said second cylinder has a pair of spaced walls, one wall having an opening therethrough providing communication between said first and second cylinders, the other wall having said first and second openings therethrough and said closure member mounted thereon.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
US474040A 1973-05-30 1974-05-28 Safety ski binding Expired - Lifetime US3893685A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT478673A AT323618B (de) 1973-05-30 1973-05-30 Sicherheitsskibindung

Publications (1)

Publication Number Publication Date
US3893685A true US3893685A (en) 1975-07-08

Family

ID=3568310

Family Applications (1)

Application Number Title Priority Date Filing Date
US474040A Expired - Lifetime US3893685A (en) 1973-05-30 1974-05-28 Safety ski binding

Country Status (5)

Country Link
US (1) US3893685A (enrdf_load_stackoverflow)
JP (1) JPS5622545B2 (enrdf_load_stackoverflow)
AT (1) AT323618B (enrdf_load_stackoverflow)
DE (1) DE2408419C2 (enrdf_load_stackoverflow)
FR (1) FR2231403B1 (enrdf_load_stackoverflow)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4372574A (en) * 1978-04-27 1983-02-08 Tmc Corporation Safety ski binding
US4911464A (en) * 1986-08-05 1990-03-27 Salomon S.A. Movable and recenterable anti-friction plate for use with a safety binding
US5040820A (en) * 1988-06-08 1991-08-20 Salomon S.A. Safety binding for a ski
US5050902A (en) * 1989-02-09 1991-09-24 Salomon S.A. Safety ski binding
US5957481A (en) * 1996-09-03 1999-09-28 Marker Deutschland Gmbh Boot retaining unit
US6585283B2 (en) * 2000-05-04 2003-07-01 Salomon S.A. Element for retaining the front portion of a boot on a ski
US20210268364A1 (en) * 2018-07-09 2021-09-02 Ryan PRIEST Ski binding

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2522514A1 (fr) * 1982-03-02 1983-09-09 Salomon & Fils F Fixation de ski avec assistance de declenchement
FR2626485B1 (fr) * 1988-01-28 1991-02-15 Salomon Sa Fixation de securite pour ski

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3348855A (en) * 1965-06-21 1967-10-24 Marker Hannes Safety toe iron for ski bindings
US3350110A (en) * 1965-08-25 1967-10-31 Georges P J Salomon Safety ski binding
US3528673A (en) * 1966-08-08 1970-09-15 Richard L Myerson Variably releasable ski bindings

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1484215A (fr) * 1965-06-21 1967-06-09 étrier avant de sécurité pour fixations de ski
DE1578974B2 (de) * 1967-11-11 1976-12-09 Vereinigte Baubeschlagfabriken Gretsch & Co Gmbh, 7250 Leonberg Sicherheitsskibindung
DE1578861A1 (de) * 1967-11-20 1971-02-18 Mutzhas Maximilian Dipl Ing Dr Sicherheitsskibindung

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3348855A (en) * 1965-06-21 1967-10-24 Marker Hannes Safety toe iron for ski bindings
US3350110A (en) * 1965-08-25 1967-10-31 Georges P J Salomon Safety ski binding
US3528673A (en) * 1966-08-08 1970-09-15 Richard L Myerson Variably releasable ski bindings

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4372574A (en) * 1978-04-27 1983-02-08 Tmc Corporation Safety ski binding
US4911464A (en) * 1986-08-05 1990-03-27 Salomon S.A. Movable and recenterable anti-friction plate for use with a safety binding
US5040820A (en) * 1988-06-08 1991-08-20 Salomon S.A. Safety binding for a ski
US5050902A (en) * 1989-02-09 1991-09-24 Salomon S.A. Safety ski binding
US5957481A (en) * 1996-09-03 1999-09-28 Marker Deutschland Gmbh Boot retaining unit
US6585283B2 (en) * 2000-05-04 2003-07-01 Salomon S.A. Element for retaining the front portion of a boot on a ski
US20210268364A1 (en) * 2018-07-09 2021-09-02 Ryan PRIEST Ski binding
US11524220B2 (en) * 2018-07-09 2022-12-13 Ryan PRIEST Ski binding

Also Published As

Publication number Publication date
AT323618B (de) 1975-07-25
DE2408419C2 (de) 1982-09-23
FR2231403A1 (enrdf_load_stackoverflow) 1974-12-27
DE2408419A1 (de) 1974-12-19
JPS5622545B2 (enrdf_load_stackoverflow) 1981-05-26
FR2231403B1 (enrdf_load_stackoverflow) 1977-09-23
JPS5020833A (enrdf_load_stackoverflow) 1975-03-05

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