Title:
船外機
Document Type and Number:
Japanese Patent JP4155388
Kind Code:
B2
Abstract:
An outboard motor has a driveshaft housing and a lower unit coupled with each other. A driveshaft, which extends through the driveshaft housing and the lower unit, is divided into upper and lower section. The upper driveshaft section defines splines on a bottom outer surface. The lower driveshaft section defines splines on a top outer surface. A tubular coupling member defines splines on an inner surface thereof. The coupling member couples the bottom outer surface of the first shaft with the top outer surface of the second shaft by the respective splines. In one arrangement, a water pump is driven by the driveshaft. The coupling member is interposed between a rotor of the water pump and respective portions of the first and second shafts. In another arrangement, a bearing unit journals the driveshaft. The coupling member is interposed between a bearing of the bearing unit and the respective portions of the first and second shafts.
Inventors:
Yoshihiko Okabe
Application Number:
JP2002016296A
Publication Date:
September 24, 2008
Filing Date:
January 25, 2002
Export Citation:
Assignee:
Yamaha Marine Co., Ltd.
International Classes:
B63H20/00; F01P5/12; B63H20/14; F02B61/04; F16D1/02
Domestic Patent References:
| JP7081685A | ||||
| JP2000211588A | ||||
| JP4274993A |
Attorney, Agent or Firm:
Toshio Tsuruwaka