| US 7,506,737 B2 | ||
| Marine reversing gear assembly provided with locking device | ||
| Toshiaki Okanishi, Amagasaki (Japan); and Shigeaki Nakagawa, Amagasaki (Japan) | ||
| Assigned to Kanzaki Kokyukoki Mfg. Co., Ltd., Hyogo-ken (Japan) | ||
| Filed on Jan. 12, 2006, as Appl. No. 11/330,096. | ||
| Claims priority of application No. 2005-010649 (JP), filed on Jan. 18, 2005. | ||
| Prior Publication US 2006/0157316 A1, Jul. 20, 2006 | ||
| Int. Cl. B60W 10/02 (2006.01); B60W 10/18 (2006.01) | ||
| U.S. Cl. 192—13A [440/74] | 6 Claims |
| 1. A marine reversing gear assembly provided with a locking device comprising:
an input shaft driven by an internal combustion engine;
an output shaft connected to a propeller shaft;
a hydraulic pump driven by the input shaft;
a hydraulic forward and reverse clutch;
a directional control valve for switching the forward or reverse clutch by the supply of working oil from the hydraulic pump;
and
a locking device provided with a locking mechanism for locking the output shaft, and a hydraulic actuator for unlocking the
output shaft by operating on the locking mechanism due to the supply of working oil from the hydraulic pump, wherein the locking
mechanism includes a locking part and a locked part, which are constructed to enter into an engaged locking position when
pressure of the working oil falls to a relatively low pressure, so that rotation of the output shaft is blocked immediately
when the locking part and the locked part enter into the engaged locking position.
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