Title:
TURN BUOY FOR BOAT RACE AND MANUFACTURE THEREOF
Document Type and Number:
Japanese Patent JP2607009
Kind Code:
B2
Abstract:
PURPOSE: To avoid the damage of a boat by forming a partition wall of elastic material integrally with a hollow conical part and a hollow tire part.
CONSTITUTION: A partition member 10 is formed of thin rubber material and formed integrally at a hollow conical part 2 and a hollow tire part 3. An opening is formed at the partition member 10, and the internal space of the hollow conical part 2 and that of the hollow tire part 3 are communicated with each other through this opening. Accordingly, the outer peripheral edge part of the partition member 10 is also connected to a connected part between the hollow conical part 2 and the hollow tire part 3. This connected part is thereby formed locally into a thick wall part, so that the rigidity is secured sufficiently, and the peripheral part of this connected part is kept in the specified shape with the specified rigidity.
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Inventors:
Mori Shigechika
Application Number:
JP24798792A
Publication Date:
May 07, 1997
Filing Date:
September 17, 1992
Export Citation:
Assignee:
Mori Shigechika
International Classes:
B63B22/00; (IPC1-7): B63B22/00
Domestic Patent References:
| JP6377892U | ||||
| JP57109096U | ||||
| JP56399U | ||||
| JP55149494U | ||||
| JP5139752B2 | ||||
| JP496077Y1 | ||||
| JP5848958Y2 | ||||
| JP5129755Y2 |
Attorney, Agent or Firm:
Hiroshi Maeda (2 outside)