EP0094661A3 - Sail mast - Google Patents

Sail mast Download PDF

Info

Publication number
EP0094661A3
EP0094661A3 EP83104782A EP83104782A EP0094661A3 EP 0094661 A3 EP0094661 A3 EP 0094661A3 EP 83104782 A EP83104782 A EP 83104782A EP 83104782 A EP83104782 A EP 83104782A EP 0094661 A3 EP0094661 A3 EP 0094661A3
Authority
EP
European Patent Office
Prior art keywords
mast
narrow
wishbone
much
boom
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.)
Granted
Application number
EP83104782A
Other languages
German (de)
Other versions
EP0094661A2 (en
EP0094661B1 (en
Inventor
Urs P. Meyer
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to AT83104782T priority Critical patent/ATE22679T1/en
Publication of EP0094661A2 publication Critical patent/EP0094661A2/en
Publication of EP0094661A3 publication Critical patent/EP0094661A3/en
Application granted granted Critical
Publication of EP0094661B1 publication Critical patent/EP0094661B1/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B32/00—Water sports boards; Accessories therefor
    • B63B32/68—Mast foot attachments, e.g. mast foot rails
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H8/00—Sail or rigging arrangements specially adapted for water sports boards, e.g. for windsurfing or kitesurfing
    • B63H8/20—Rigging arrangements involving masts, e.g. for windsurfing
    • B63H8/22—Rigging arrangements involving masts, e.g. for windsurfing for connecting wishbones to the mast
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H8/00—Sail or rigging arrangements specially adapted for water sports boards, e.g. for windsurfing or kitesurfing
    • B63H8/20—Rigging arrangements involving masts, e.g. for windsurfing
    • B63H8/24—Arrangements for connecting the rigging to a board

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Wind Motors (AREA)
  • Forklifts And Lifting Vehicles (AREA)

Abstract

Mast (1) having essentially a rectangular cross-section with rounded narrow sides, preferably made in sandwich-type construction from integrally fiberglass-reinforced polyurethane structural foam (7) as core material with fiberglass laminates (8) as stressed skins bonded to both wide sides. The depth measured between the two narrow sides is greatest in the vicinity of the attachment area of the wishbone-type boom (12), and it decreases from there towards at least the top end, whereby the average depth of the mast cross-section shall measure at least twice as much as the mast width. The mast (1) for a sail-board is connected with the wishbone-type boom (12) via an articulated attachment (13) thus permitting the mast to pivot freely within the limits of the wishbone boom and to point its narrow leading edge against the wind. The mast (1) is essentially submitted only to a stress resulting from the tractional force of the sail (14) attached behind the narrow backside of the mast. The mast (1) possesses a much higher breaking strength and stiffness edgeways than conventional round tubular masts. Furthermore, the narrow flat mast (1) has a drastically reduced frontal area and is therefore aerodynamically much more efficient as well as lighter in weight than a conventional round mast.
EP83104782A 1982-05-18 1983-05-14 Sail mast Expired EP0094661B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83104782T ATE22679T1 (en) 1982-05-18 1983-05-14 SAIL MAST.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH3079/82A CH649053A5 (en) 1982-05-18 1982-05-18 SAILING POLE.
CH3079/82 1982-05-18

Publications (3)

Publication Number Publication Date
EP0094661A2 EP0094661A2 (en) 1983-11-23
EP0094661A3 true EP0094661A3 (en) 1984-12-19
EP0094661B1 EP0094661B1 (en) 1986-10-08

Family

ID=4248160

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83104782A Expired EP0094661B1 (en) 1982-05-18 1983-05-14 Sail mast

Country Status (5)

Country Link
US (1) US4501214A (en)
EP (1) EP0094661B1 (en)
AT (1) ATE22679T1 (en)
CH (1) CH649053A5 (en)
DE (1) DE3366674D1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH655472B (en) * 1983-07-06 1986-04-30
FR2564416A1 (en) * 1984-05-17 1985-11-22 Viellard Paul Composite material mast for sailboard and sailing boat
US4867091A (en) * 1986-10-01 1989-09-19 Somar Corporation Surfing boom
DE8711778U1 (en) * 1987-08-31 1988-02-11 North Sails Windsurfing GmbH, 8122 Penzberg Mast for a sail
AT396220B (en) * 1989-07-14 1993-07-26 Unterberger Wolfgang RIGG FOR A SAILING BOARD
US7234348B2 (en) * 2004-03-11 2007-06-26 Nike, Inc. Testing apparatus
DE102016000499B4 (en) * 2016-01-19 2018-04-05 Robert Frank Gmbh & Co. Kg Mast and associated rig
US11772752B1 (en) * 2023-03-14 2023-10-03 Adherend Innovations, LLC Enhanced mast assembly for hydrofoil watersports board system

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE897054C (en) * 1945-11-24 1953-11-16 Alf Eskil Dipl-Ing Hallen Main mast, loading mast or similar for ships
FR2075042A5 (en) * 1970-01-02 1971-10-08 Fairey Sa
FR2377321A1 (en) * 1977-01-14 1978-08-11 Brunel Gerald Marine mast with aerofoil form side members - is supported by similarly shaped brackets to reduce drag
DE3004725A1 (en) * 1980-02-08 1981-08-13 Blech, geb. Stupperich, Mechthilde, 5960 Olpe Sail-board rig with sail held at corners only - has luff secured to stay pulling mast into arc, with wishbone boom shaped for ideal sail profile
FR2492764A1 (en) * 1980-10-24 1982-04-30 Villac Pierre Rigging for wind surfing board - has mast pivoted to board and curved wishbone fixed to mast supporting sail

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US601494A (en) * 1898-03-29 Spar for vessels
US2162441A (en) * 1938-07-28 1939-06-13 Theodore E Mead Sailboat mast bending
US3310017A (en) * 1964-11-30 1967-03-21 Dow Chemical Co Aerodynamic sail, boom and jaw for boats
US3487800A (en) * 1968-03-27 1970-01-06 Hoyle Schweitzer Wind-propelled apparatus
US3765360A (en) * 1972-03-31 1973-10-16 P Monfort Reinforced mast construction
FR2228656B1 (en) * 1973-05-10 1977-12-30 Lamboley Gilbert
US3882810A (en) * 1974-02-25 1975-05-13 Otto Engineering Mast with movable sail attaching means
EP0030495A3 (en) * 1979-11-30 1981-09-30 Jean-Paul Dudouyt Rig for a skiff or a wind-surf board

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE897054C (en) * 1945-11-24 1953-11-16 Alf Eskil Dipl-Ing Hallen Main mast, loading mast or similar for ships
FR2075042A5 (en) * 1970-01-02 1971-10-08 Fairey Sa
FR2377321A1 (en) * 1977-01-14 1978-08-11 Brunel Gerald Marine mast with aerofoil form side members - is supported by similarly shaped brackets to reduce drag
DE3004725A1 (en) * 1980-02-08 1981-08-13 Blech, geb. Stupperich, Mechthilde, 5960 Olpe Sail-board rig with sail held at corners only - has luff secured to stay pulling mast into arc, with wishbone boom shaped for ideal sail profile
FR2492764A1 (en) * 1980-10-24 1982-04-30 Villac Pierre Rigging for wind surfing board - has mast pivoted to board and curved wishbone fixed to mast supporting sail

Also Published As

Publication number Publication date
US4501214A (en) 1985-02-26
EP0094661A2 (en) 1983-11-23
ATE22679T1 (en) 1986-10-15
DE3366674D1 (en) 1986-11-13
CH649053A5 (en) 1985-04-30
EP0094661B1 (en) 1986-10-08

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