Title:
SHIP PROPELLER
Document Type and Number:
WIPO Patent Application WO/2020/138006
Kind Code:
A1
Abstract:
A ship propeller 1 is provided with a boss 2 having a groove part 21 formed in an outer peripheral surface, and a blade 3 having a base part 31 formed on one end side, wherein the ship propeller 1 is constructed by inserting the base part 31 of the blade 3 into the groove part 21 of the boss 2. An inner wall surface 21s constituting the groove part 21 of the boss 2 has a protrusion part 22 extending in an inserting direction of the base part 31 of the blade 3. An outer wall surface 31s constituting the base part 31 of the blade 3 has a depressed part 32 extending in the inserting direction of the base part 31 of the blade 3. When the base part 31 of the blade 3 is inserted into the groove part 21 of the boss 2, the protrusion part 22 and the depressed part 32 are fit with each other.
Inventors:
SAKURAI TAKAYA (JP)
Application Number:
PCT/JP2019/050433
Publication Date:
July 02, 2020
Filing Date:
December 23, 2019
Export Citation:
Assignee:
NAKASHIMA PROPELLER CO LTD (JP)
International Classes:
B63H1/20; B63H1/26
Foreign References:
| JP2014125047A | 2014-07-07 | |||
| US20060270287A1 | 2006-11-30 | |||
| CN102630207A | 2012-08-08 |
Attorney, Agent or Firm:
YANO INTERNATIONAL PATENT ATTORNEYS OFFICE, P.C. (JP)
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