WO1988005397A1 - Spinnaker pole and spinnaker pole head - Google Patents

Spinnaker pole and spinnaker pole head Download PDF

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Publication number
WO1988005397A1
WO1988005397A1 PCT/DK1988/000010 DK8800010W WO8805397A1 WO 1988005397 A1 WO1988005397 A1 WO 1988005397A1 DK 8800010 W DK8800010 W DK 8800010W WO 8805397 A1 WO8805397 A1 WO 8805397A1
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WO
WIPO (PCT)
Prior art keywords
spinnaker
pole
jibing
spinnaker pole
guides
Prior art date
Application number
PCT/DK1988/000010
Other languages
French (fr)
Inventor
Henrik Bartholin
Original Assignee
Bartholin, Niels
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 Bartholin, Niels filed Critical Bartholin, Niels
Publication of WO1988005397A1 publication Critical patent/WO1988005397A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H9/00—Marine propulsion provided directly by wind power
    • B63H9/04—Marine propulsion provided directly by wind power using sails or like wind-catching surfaces
    • B63H9/08—Connections of sails to masts, spars, or the like
    • B63H9/10—Running rigging, e.g. reefing equipment
    • B63H9/1071—Spinnaker poles or rigging, e.g. combined with spinnaker handling

Definitions

  • This invention consurns a spinnaker pole to be used on yachts carrying spinnaker.
  • the spinnaker pole consists of a profile the rear end of which is fixed to the mast of the yacht by means of an inboard pole end fitting.
  • the inboard pole end fitting includes sheaves for two jiibing lines.
  • the two jibing lines run through the two sheaves via the front end of the spinnaker pole to the windward and the leeward spinnaker sheet respectively.
  • the topping lift is slacked to make it possible for the front end of the spinnaker pole to pass beneath the heanstay.
  • the windward jibing line is slacked.
  • the leeward jibing line is now pulled in, which causes the spinnaker pole to swing beneath the headstay.
  • the topping lift is again pulled in, and this terminates the jibing of the spinnaker.
  • the spinnaker pole consists of a profile the rear end of which is fixed to the mast with an inboard pole end fitting. In front of the inboard pole end fitting, on or in the distal half of the spinnaker pole, are situated two guides for the jibing lines.
  • the two jibing lines run via the front end of the spinnaker pole, via the guides on the pole end and the sheaves mounted on the mast above the mast mounting for the spinnaker pole to a winch or a cleat on the mast or on the deck of the yacht.
  • a stop line and a downhaul are mounted on the spinaker pole.
  • the windward jibing line is slacked.
  • the spinnaker pole will now fall and tighten up the spinnaker pole stop line.
  • the spinnaker pole stop line has a fixed length, permitting the front end of the spinnaker pole to pass beneath the hesdstay.
  • the spinnaker pole, carried by the spinnaker pole stop line will swing beneath the headstay, and will be lifted to its new position on the windward side of the yacht, terminating the jibing of the spinnaker.
  • fig. 1 shows a yacht, carrying spinnaker, seen from the side.
  • fig. 2 shows a yacht, carrying spinnaker, seen from above.
  • fig. 3 shows the spinnaker pole, according to US patent no. 3,228,372 seen from the side.
  • fig 4 shows the spinnaker pole according to the invention, seen from the side.
  • fig. 5 shows the spinnaker pole according to the invention,o n a yacht carrying spinnaker.
  • fig. 1 The rig cosists of a mast (1).
  • the mast (1) is supported by a haedstay (2), several stays (3) and a stern stay (4).
  • the windward corner (12) of the spinnaker (9) is connected to the yacht (14) by the leeward spinnaker sheet (13).
  • the spinnaker pole (7) is connected to the mast (1) by a top lift (16), and to the yacht (14) by a downhaul (17).
  • the yacht (14) changes direction relatively to the wind (18).
  • the windside of the yacht (1-) (the windward side (19)) becomes the leeward side (20)
  • the leeward side (20) becomes the windward side (19).
  • the spinnaker pole (6) is always placed on the windward side (19) of the yacht (14).
  • the purpose of the spinnaker pole is to hold the spinnaker (9) as far windward as possible, away from the winddead re (21) created by the other sails in the leeward side (20) of the yacht.
  • the spinnaker pole according to US pat. 3,228,372 consists of a tube.
  • the inboard pole end fitting (5) In the rear end of the pole the inboard pole end fitting (5) is mounted.
  • guides (22) for the two jibing lines (23), (24) are mounted on the inboard pole end fitting (5).
  • the jibing lines (23), (24) run via the guides (22), and via the front end (7) of the spinnaker pole to one spinnaker sheet each, the windward spinnaker sheet (15) and the leeward spinnaker sheet (13) respectively.
  • the top lift (16) and the downhaul (17) In the front end of the spinnaker pole (7), the top lift (16) and the downhaul (17) are mounted.
  • the spinnaker pole according to the invention consists of a profile.
  • the inboard pole end fitting (5) is mounted in the rear end of the pole.
  • the inboard pole end fitting (5) is mounted in front of the inboard pole end fitting (5) in or on the distal half of the spinnaker pole (6) guides (22) for jibing lines (23), (24) are mounted.
  • the two jibing lines (23), (24) run via the front end (7) of the spinnaker pole (6), via the guides (22 ) on the pole end and the sheaves mounted on the mast (26) above the mast mounting for the spinnaker pole to a winch or a claet on the mast (1) or on the deck of the yacht (14).
  • a stop line (25) and a downhaul (17) are mounted on the spinnaker sailing according to the invention.
  • the spinnaker pole (6) is secured to the mast (1) by the inboard pole end fitting (5).
  • the windward corner of the spinnaker (8) is held on the front end of the spinnaker pole (7) by the windward spinnaker sheet (15) and the windward jibing line (23).
  • the leeward corner of the spinnaker (12) is connected to the yacht by the leeward spinnaker sheet (13).
  • the leeward jibing line is slacked, and is therefore not limiting the movements of the leeward spinnaker corner (12).
  • the downhaul (17) is hauled taut.
  • the stop line (25) is slack.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Jib Cranes (AREA)

Abstract

Spinnaker pole (6) consisting of a profile. In the rear end of the pole, the inboard pole end fitting (5) is mounted. In front of the inboard pole end fitting (5) in or on the distal half of the spinnaker pole (6) guides (22) for jibing lines (23, 24) are mounted. Starting from the leeward (13) and the windward spinnaker sheet (15) respectively, the two jibing lines (23, 24) run via the front end (7) of the spinnaker pole (6), via the guides (22) on the pole and the sheaves mounted on the mast (26) above the mast mounting device (27) for the spinnaker pole (6) to a winch or a cleat on the mast (1) or on the deck of the yacht (14). On the spinnaker pole, a stop line (25) and a downhaul (17) are mounted. During the jibing manoeuvre, according to the invention, the windward jibing line (23) is slacked. The spinnaker pole (6) will now fall and tighten up the spinnaker pole stop line (25). The spinnaker pole stop line has a fixed length, permitting the front end of the spinnaker pole (7) to pass beneath the headstay (2). When the leeward jibing line (24) is pulled in, the spinnaker pole, carried by the spinnaker pole stop line (25), will swing beneath the headstay (2), and will be lifted to its new position on the windward side (19) of the yacht (14), terminating the jibing of the spinnaker (9). The jibing manoeuvre, according to the invention, is thus performed fast and safely, requiring one crew member only.

Description

SPINNAKER POLE AND SPINNAKER POLE HEAD
This invention consurns a spinnaker pole to be used on yachts carrying spinnaker. The spinnaker pole consists of a profile the rear end of which is fixed to the mast of the yacht by means of an inboard pole end fitting.
Such a spinnaker pole is known from US publication no. 3,228,372. In this known arrangement, the inboard pole end fitting includes sheaves for two jiibing lines. The two jibing lines run through the two sheaves via the front end of the spinnaker pole to the windward and the leeward spinnaker sheet respectively.
Duringthe jibing manouevre with this system, the topping lift is slacked to make it possible for the front end of the spinnaker pole to pass beneath the heanstay. At the same time, the windward jibing line is slacked. The leeward jibing line is now pulled in, which causes the spinnaker pole to swing beneath the headstay. When the front end of the pole has passed the headstay, the topping lift is again pulled in, and this terminates the jibing of the spinnaker.
To perform a fast and safe spinnaker jibe, two members of the crew are required. One member for handling the topping lift, and another for handling the two jibing lines. Furthermore, this system requires that the actions of these two members are co-ordinated. According to the invention, this disadvantage is eleminated. According to the invention, the spinnaker pole consists of a profile the rear end of which is fixed to the mast with an inboard pole end fitting. In front of the inboard pole end fitting, on or in the distal half of the spinnaker pole, are situated two guides for the jibing lines. Starting from the leeward and the windward spinnaker sheet respectively, the two jibing lines run via the front end of the spinnaker pole, via the guides on the pole end and the sheaves mounted on the mast above the mast mounting for the spinnaker pole to a winch or a cleat on the mast or on the deck of the yacht. On the spinaker pole, a stop line and a downhaul are mounted.
When the spinnaker is jibed, according to the invention the windward jibing line is slacked. The spinnaker pole will now fall and tighten up the spinnaker pole stop line. The spinnaker pole stop line has a fixed length, permitting the front end of the spinnaker pole to pass beneath the hesdstay. When the leeward jibing line is pulled in, the spinnaker pole, carried by the spinnaker pole stop line, will swing beneath the headstay, and will be lifted to its new position on the windward side of the yacht, terminating the jibing of the spinnaker.
Now follows a detailed description of the invention, referring to the drawings, where :
fig. 1 shows a yacht, carrying spinnaker, seen from the side. fig. 2 shows a yacht, carrying spinnaker, seen from above.
fig. 3 shows the spinnaker pole, according to US patent no. 3,228,372 seen from the side.
fig 4 shows the spinnaker pole according to the invention, seen from the side.
fig. 5 shows the spinnaker pole according to the invention,o n a yacht carrying spinnaker.
fig. 1 The rig cosists of a mast (1). The mast (1) is supported by a haedstay (2), several stays (3) and a stern stay (4). On the mast (1) is situated a mounting device (27) for fixing the inboard pole end fitting (5) of the spinnaker pole (6). The front end of the spinnaker pole
(7) is connected to the windward corne r (8) of the spinnaker (9). The top of the spinnaker (10) is connected to the mast (1) by a halyard (11). The leeward corner (12) of the spinnaker (9) is connected to the yacht (14) by the leeward spinnaker sheet (13). The windward corner
(8) of the spinnaker is connected to the yacht (14) via the front end of the spinnaker pole (7) and the windward spinnaker sheet (15). The front end of the spinnaker pole (7), is connected to the mast (1) by a top lift (16), and to the yacht (14) by a downhaul (17).
fig 2 During the jibeing manoeuvre, the yacht (14) changes direction relatively to the wind (18). Thus the windside of the yacht (1-) (the windward side (19)) becomes the leeward side (20), and the leeward side (20) becomes the windward side (19). The spinnaker pole (6) is always placed on the windward side (19) of the yacht (14). The purpose of the spinnaker pole is to hold the spinnaker (9) as far windward as possible, away from the winddead
Figure imgf000006_0001
re (21) created by the other sails in the leeward side (20) of the yacht.
fig 3 The spinnaker pole, according to US pat. 3,228,372 consists of a tube. In the rear end of the pole the inboard pole end fitting (5) is mounted. On the inboard pole end fitting (5), guides (22) for the two jibing lines (23), (24) are mounted. The jibing lines (23), (24) run via the guides (22), and via the front end (7) of the spinnaker pole to one spinnaker sheet each, the windward spinnaker sheet (15) and the leeward spinnaker sheet (13) respectively. In the front end of the spinnaker pole (7), the top lift (16) and the downhaul (17) are mounted.
fig 4 The spinnaker pole according to the invention consists of a profile. In the rear end of the pole, the inboard pole end fitting (5) is mounted. In front of the inboard pole end fitting (5) in or on the distal half of the spinnaker pole (6) guides (22) for jibing lines (23), (24) are mounted. Starting from the leeward (13) end the windward spinnaker sheet (15) respectively, the two jibing lines (23), (24) run via the front end (7) of the spinnaker pole (6), via the guides (22 ) on the pole end and the sheaves mounted on the mast (26) above the mast mounting for the spinnaker pole to a winch or a claet on the mast (1) or on the deck of the yacht (14). On the spinnaker pole, a stop line (25) and a downhaul (17) are mounted. fig 5 Spinnaker sailing according to the invention. The spinnaker pole (6) is secured to the mast (1) by the inboard pole end fitting (5). The windward corner of the spinnaker (8) is held on the front end of the spinnaker pole (7) by the windward spinnaker sheet (15) and the windward jibing line (23). The leeward corner of the spinnaker (12) is connected to the yacht by the leeward spinnaker sheet (13). The leeward jibing line is slacked, and is therefore not limiting the movements of the leeward spinnaker corner (12). The downhaul (17) is hauled taut. The stop line (25) is slack.

Claims

WE CLAIM :
1. Rig for a yacht carrying spinnaker I N W H I C H the jibing lines (23), (24) starting from the leeward (13) and the windward spinnaker sheet (15) respectively, run via the front end (7) of the spinnaker pole (6), via guides (22) mounted on or in the distal half of the spinnaker pole (6) and via sheaves (26) mounted on the mast (1) above the mounting device (27) for the spinnaker pole to a winch or a cleat on the mast (1) or on the deck of the vacht (14).
2. Spinnaker pole to be used on yacht carrying spinnaker. The spinnaker pole has guides (22) for jibing liner (23), (24), according to claim 2. I N W H I C H the guides (22) are mounted in or on the distal half of the spinnaker pole (6).
3. Spinnaker pole according to claim 2. I N W H I C H the guides (22) for the jibing lines (23), (24) are mounted in a tube, the wall of whicw is perforated, permitting the jibing lines (23), (24) to pass the guides (22).
4. Head of spinnaker pole to be mounted on the front end (7) of a spinnaker pole (6) for the manufacturing of a spinnaker pole according to claim 2. and claim 3. I N W H I C H guides (22) for jibing lines (23), (24) are mounted in or on the spinnaker pole head.
5. Part of spinnaker pole to be mounted in the front half of a spinnaker pole, behind the front end (7) of the spinnaker pole (6) for the manufacturing of a spinnaker pole according to claim 2. and claim 3., I N W H I C H guides (22) forjibing lines (23), (24) are mounted in or on the pole part.
PCT/DK1988/000010 1987-01-23 1988-01-25 Spinnaker pole and spinnaker pole head WO1988005397A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK0397/87 1987-01-23
DK39787A DK39787A (en) 1987-01-23 1987-01-23 PLAYER STAYS AND PLAYER STAY HEADS

Publications (1)

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WO1988005397A1 true WO1988005397A1 (en) 1988-07-28

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Country Status (2)

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WO (1) WO1988005397A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992007753A1 (en) * 1990-10-26 1992-05-14 Peter Michael Mcalpine Spinnaker pole control system and spinnaker pole end thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3207114A (en) * 1964-05-12 1965-09-21 Barient Co Locking mechanism for spinnaker poles
US3228372A (en) * 1964-03-04 1966-01-11 Realty Ind Corp Windigo spinnaker pole and jibing system
SE422187B (en) * 1981-04-21 1982-02-22 Karl Lyth SPINNACKERBOM

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3228372A (en) * 1964-03-04 1966-01-11 Realty Ind Corp Windigo spinnaker pole and jibing system
US3207114A (en) * 1964-05-12 1965-09-21 Barient Co Locking mechanism for spinnaker poles
SE422187B (en) * 1981-04-21 1982-02-22 Karl Lyth SPINNACKERBOM

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992007753A1 (en) * 1990-10-26 1992-05-14 Peter Michael Mcalpine Spinnaker pole control system and spinnaker pole end thereof
US5347945A (en) * 1990-10-26 1994-09-20 Mcalpine Peter M Spinnaker pole control system and spinnaker pole end therefor

Also Published As

Publication number Publication date
DK39787A (en) 1988-07-24
DK39787D0 (en) 1987-01-23

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