US3863943A - Ski anti-crossing device - Google Patents

Ski anti-crossing device Download PDF

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Publication number
US3863943A
US3863943A US400027A US40002773A US3863943A US 3863943 A US3863943 A US 3863943A US 400027 A US400027 A US 400027A US 40002773 A US40002773 A US 40002773A US 3863943 A US3863943 A US 3863943A
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US
United States
Prior art keywords
ski
base plate
crossing
skis
base
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
US400027A
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English (en)
Inventor
Hugo V Giannotti
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.)
SKI DYNAMICS Inc
Original Assignee
SKI DYNAMICS Inc
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 SKI DYNAMICS Inc filed Critical SKI DYNAMICS Inc
Priority to US400027A priority Critical patent/US3863943A/en
Priority to CH16874A priority patent/CH565569A5/xx
Priority to AT12274*#A priority patent/AT329419B/de
Priority to JP4561074A priority patent/JPS572355B2/ja
Priority to IT23969/74A priority patent/IT1015060B/it
Priority to FR7432070A priority patent/FR2244553A1/fr
Application granted granted Critical
Publication of US3863943A publication Critical patent/US3863943A/en
Priority to US05/686,504 priority patent/USRE29366E/en
Anticipated expiration legal-status Critical
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
    • A63C5/00—Skis or snowboards
    • A63C5/06—Skis or snowboards with special devices thereon, e.g. steering devices
    • A63C5/065—Anti-crossing devices

Definitions

  • ABSTRACT W A device for attachment to skis comprising a vertical ber and a base late on which said vertical mem- [56] References Cited mem ber can move relative to the base plate.
  • the vertical UNITED STATES PATENTS member may be springhinged to the base plate.
  • the 2,237,998 4/1941 Neuhauser 280/1135 C vgrtica] member is preferably airfoil haped, 2,455,920 12/1948 Ebbley, Jr.
  • FIG-4 SKI ANTI-CROSSING DEVICE This invention relates generally to ski attachments and, in particular, to a device which substantially will prevent skis from crossing, reduce ski tip vibration, and assist in directional control.
  • ski crossing can be prevented by placing a blocking member on the forebody and/or aftbody of the ski. Ski crossing can be prevented however only within the effective height of the device which has to be limited for practical and safety reasons. Therefore should the lift of a crossing ski exceed the height of the device it could be trapped on the other side of the device and cause serious injury, unless the device contains means to avoid this.
  • the flexing characteristic of the ski with the attachment is not affected appreciably so that the desirable ski dynamics are maintained.
  • the design of the device and in particular the base portion is therefore important and should not stiffen the ski.
  • the device should be light in weight and not appreciably add to the drag of the ski at high speed or in deep powder snow.
  • the present invention satisfies the herein mentioned requirements and in particular solves the problem of recovery, without requiring the lifting of the ski over the device, by spring-hinging the device. Consequently, crossing is prevented in one direction only. If a crossing ski rises higher than the effective height of the device then recovery is made by moving the ski back into position and the device will swing down out of the way as the ski slides over it. Once the ski has cleared, the device will spring backto the vertical position ready to prevent crossing. The device is lightly spring-loaded so that little effort is required to swing it down.
  • the body of the device is airfoil shaped so as to reduce the drag at high speed and in deep powder snow. When mounted on the tails of the skis it will act as a directional aerodynamic rudder. An elongated mounting hole is provided so that the orientation of the device can be adjusted according to the skiers preference. Also the base of the device is slotted so as to reduce its stiffness and not affect the dynamics of the ski.
  • An object of this invention is to provide an anticrossing device for skis which is capable of substantially preventing ski crossing in one direction only.
  • Another object of this invention is to provide an anticrossing device for skis wherein the vertical member is spring-hinged to provide fast return to the normal'skiing position.
  • Another object of this invention is to provide an anticrossing device for skis capable of flexing with the ski.
  • Another object of this invention is to provide an anticrossing device for skis with an airfoil profile for reduced drag in deep powder snow or at high speed.
  • Another object of this invention is to provide an anticrossing device for skis with an airfoil profile capable of easily being adjusted.
  • FIG. 1 is a perspective view of the anti-crossing device mounted on the forebody of the skis demonstrating the manner in which the device on the right ski prevents the left ski from crossing.
  • FIG. 2 is a perspective view of the anti-crossing device mounted on the forebody of the skis demonstrating the manner in which the device on the right ski is swung flat by the action of the left ski recovering from a crossed position.
  • FIG. 3 is a perspective view of the anti-crossing device for the right hand ski, in the swung-down position, showing the spring hinge.
  • FIG. 4 is a top view of the device for the right ski, showing the slotted base.
  • FIG. 5 is a vertical section of the right ski, taken along line 2-2 in FIG. 4, and showing the airfoil member vertical to the base in the normal position.
  • FIGS. 3, 4 and 5 show the device for the right ski.
  • the device for the left hand ski is opposite hand or a mirror image of the right.
  • the left anti-crossing device 20 is mounted onto the surface of the left ski 21 approximately 13 inches from the tip.
  • the right anticrossing device 22 is mounted onto the right ski 23.
  • the airfoil shaped body 24 of the right side device 22 is shown blocking the left ski 21 and preventing it from crossing.
  • the airfoil shaped body 24 of the right side device 22, in operation is shown deflecting under the side action of the left ski 21 as it is brought out of a crossed position.
  • Anti-crossing device 25 comprises an airfoil shaped body member 24 attached by screws 26 to the upper hinge leaf 27, and a base 28 attached by screws 29, to the lower hinge leaf 30, separated from the base 28 by spacer 31.
  • the upper hinge leaf 27 and the lower hinge leaf 30 are connected by means of a hinge pin 32 passing through torsion spring 33.
  • the upper torsion spring end 34 is captured between upper hinge leaf 27 and the airfoil body 24 and the lower torsion spring end 35 is captured between lower hinge leaf 30 and the base plate 28.
  • the base 28 contains a forward mounting screw hole 36 and an elongated mounting screw hole 37 for the lateral adjustment of the anticrossing device. Base 28 also contains slot 38 to reduce its stiffness. The base is screwed to the ski by suitable screws through the mounting holes.
  • the base 28 is shaped so that a torque arm 41 is formed to offer resistance to the overturning of the anticrossing device when it is struck by a crossingski.
  • the torque arm is formed by making the base substantially wider at one end than at the other. This provides the overturning resistance with the minimum increase in stiffness.
  • One or more slots, 38, may be made in the mounting base 28, to reduce its stiffness.
  • the airfoil body 24 is hollow and contains cap 39 attached by a suitable adhesive 40.
  • the anti-crossing device can be injection molded from a suitable lightweight plastic preferably of the high impact type without substantially changing its functional design and effectiveness. It is also clear that the wall thickness and specific shape of the airfoil body 24 can be selected to afford a degree of elasticity in the vertical direction as a further safety measure. It is also clear that the base 28 can be proportioned so that other means of attachment to the ski are possible, such as by an adhesive. It is also evident that the base stiffness can be reduced by the addition of more slots 38, said slots not necessarily penetrating the full depth of the base 28.
  • Means for attachment to the upper surfaces adjacent an end of skis comprising a first base plate, mounted on a first ski, a first member pivotally mounted on said first base plate,
  • a second base plate mounted on a second ski
  • a'sec- 0nd member pivotally mounted on said second base plate, said members being pivoted about an axis parallel to the longitudinal axis of said skis
  • each said member being spring loaded to the vertical position, each said member being adapted to block the other ski from crossing it but yielding in the direction that will unlock the other ski if the other ski has crossed a member.

Landscapes

  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Devices For Checking Fares Or Tickets At Control Points (AREA)
US400027A 1973-09-24 1973-09-24 Ski anti-crossing device Expired - Lifetime US3863943A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
US400027A US3863943A (en) 1973-09-24 1973-09-24 Ski anti-crossing device
CH16874A CH565569A5 (de) 1973-09-24 1974-01-08
AT12274*#A AT329419B (de) 1973-09-24 1974-01-08 Vorrichtung zur befestigung auf schiern
JP4561074A JPS572355B2 (de) 1973-09-24 1974-04-24
IT23969/74A IT1015060B (it) 1973-09-24 1974-06-14 Dispositivo anti incrocio per sci
FR7432070A FR2244553A1 (de) 1973-09-24 1974-09-23
US05/686,504 USRE29366E (en) 1973-09-24 1976-05-14 Ski anti-crossing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US400027A US3863943A (en) 1973-09-24 1973-09-24 Ski anti-crossing device

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US05/686,504 Reissue USRE29366E (en) 1973-09-24 1976-05-14 Ski anti-crossing device

Publications (1)

Publication Number Publication Date
US3863943A true US3863943A (en) 1975-02-04

Family

ID=23581929

Family Applications (1)

Application Number Title Priority Date Filing Date
US400027A Expired - Lifetime US3863943A (en) 1973-09-24 1973-09-24 Ski anti-crossing device

Country Status (6)

Country Link
US (1) US3863943A (de)
JP (1) JPS572355B2 (de)
AT (1) AT329419B (de)
CH (1) CH565569A5 (de)
FR (1) FR2244553A1 (de)
IT (1) IT1015060B (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3951425A (en) * 1974-03-11 1976-04-20 Margaretha Lohr Anti-crossing device for skis
US3953043A (en) * 1973-10-19 1976-04-27 Hans Hinterholzer Device for preventing a crossing of skis during skiing
US4131291A (en) * 1975-12-10 1978-12-26 Safety Jet Skisicherheitsbugel Gmbh Tiltable and removable ski attachment
US4168077A (en) * 1976-12-28 1979-09-18 Alfred Grass Anti-crossing device for skis
US11717740B2 (en) 2020-08-11 2023-08-08 Robert Ray Blocker Apparatus and method for motorized traction device to assist alpine touring snow sport equipment movement

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58213145A (ja) * 1982-06-04 1983-12-12 Matsushita Electric Ind Co Ltd 給湯システム
JPS59103148U (ja) * 1982-12-28 1984-07-11 東京瓦斯株式会社 浴槽の追いだき装置
JPS59103147U (ja) * 1982-12-28 1984-07-11 東京瓦斯株式会社 浴槽の追いだき装置
JPS59191547U (ja) * 1983-06-08 1984-12-19 大阪瓦斯株式会社 自動風呂沸上げ装置

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2237998A (en) * 1938-12-17 1941-04-08 Neuhauser Willi Ski
US2455920A (en) * 1947-05-16 1948-12-14 Jr Norman E Ebbley Antispill attachment for skis
US2611624A (en) * 1950-05-23 1952-09-23 Max A Gurvich Ski and ski tip attachment
US2625405A (en) * 1949-03-25 1953-01-13 Edward H Staff Ski attachment
US3148891A (en) * 1963-08-20 1964-09-15 Johan G F Heuvel Attachment to improve parallel skiing
US3295860A (en) * 1964-09-28 1967-01-03 Hoven George R Von Ski and ski tip attachment
US3357714A (en) * 1965-03-15 1967-12-12 Otto L Kuehn Device to assist in teaching sking
US3601421A (en) * 1969-03-13 1971-08-24 Jurg M Ris Device for the improvement of the directional guidance of skis

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2237998A (en) * 1938-12-17 1941-04-08 Neuhauser Willi Ski
US2455920A (en) * 1947-05-16 1948-12-14 Jr Norman E Ebbley Antispill attachment for skis
US2625405A (en) * 1949-03-25 1953-01-13 Edward H Staff Ski attachment
US2611624A (en) * 1950-05-23 1952-09-23 Max A Gurvich Ski and ski tip attachment
US3148891A (en) * 1963-08-20 1964-09-15 Johan G F Heuvel Attachment to improve parallel skiing
US3295860A (en) * 1964-09-28 1967-01-03 Hoven George R Von Ski and ski tip attachment
US3357714A (en) * 1965-03-15 1967-12-12 Otto L Kuehn Device to assist in teaching sking
US3601421A (en) * 1969-03-13 1971-08-24 Jurg M Ris Device for the improvement of the directional guidance of skis

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3953043A (en) * 1973-10-19 1976-04-27 Hans Hinterholzer Device for preventing a crossing of skis during skiing
US3951425A (en) * 1974-03-11 1976-04-20 Margaretha Lohr Anti-crossing device for skis
US4131291A (en) * 1975-12-10 1978-12-26 Safety Jet Skisicherheitsbugel Gmbh Tiltable and removable ski attachment
US4168077A (en) * 1976-12-28 1979-09-18 Alfred Grass Anti-crossing device for skis
US11717740B2 (en) 2020-08-11 2023-08-08 Robert Ray Blocker Apparatus and method for motorized traction device to assist alpine touring snow sport equipment movement

Also Published As

Publication number Publication date
JPS5055430A (de) 1975-05-15
IT1015060B (it) 1977-05-10
CH565569A5 (de) 1975-08-29
AT329419B (de) 1976-05-10
FR2244553A1 (de) 1975-04-18
ATA12274A (de) 1975-07-15
JPS572355B2 (de) 1982-01-16

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