Title:
WIND PROPULSION DEVICE
Document Type and Number:
Japanese Patent JPS58211996
Kind Code:
A
Abstract:
PURPOSE: To continue sailing easily even under weak wind by forming a section to be engaged angle variably with the engaging section of wing on the board.
CONSTITUTION: Under weak wind, the lifting force is reduced accordingly to make the wing 1 heavy, thereby it is hard to support it. In this case, the end member 6 of the keel 2 is engaged with the engaging section 9 or the end member 30 of the spur 3 is engaged with the engaging section 9 to support the weight of wing 1 by the board 11, thereby the person 10 may only hold the strut 5 or keel 2 to operate the wing 1. Since the engagement between said section 9 and the end members 6, 30 are spherical contact, the wing 1 can be inclined in the random direction.
Inventors:
IWAMURA SATORU
MATSUSE KOUJI
SUZUKI HIDENORI
MATSUSE KOUJI
SUZUKI HIDENORI
Application Number:
JP9672782A
Publication Date:
December 09, 1983
Filing Date:
June 04, 1982
Export Citation:
Assignee:
YAMAHA MOTOR CO LTD
International Classes:
B63H9/04; B63B15/02; B63B35/79; (IPC1-7): B63B15/02; B63B35/72; B63H9/04
Attorney, Agent or Firm:
Etsushi Kotani