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Steering system for outboard engine

A technology of outboard motor and steering arm, which is applied to steering gear, outboard propulsion device, steering steering with rudder, etc., can solve the problem of high possibility of interference, and achieve the effect of compact radial size and damage prevention.

Active Publication Date: 2013-04-24
NHK MEC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of steering device has problems such as the possibility that various cables and fuel supply pipes attached to the outboard motor interfere with the above-mentioned driving mechanism parts.

Method used

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  • Steering system for outboard engine
  • Steering system for outboard engine
  • Steering system for outboard engine

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Embodiment Construction

[0039] Below, refer to Figure 1 to Figure 12 , a ship including the steering device according to the first embodiment of the present invention will be described.

[0040] figure 1 and figure 2 An example of the ship 10 is shown. The ship 10 includes a hull 11 , an outboard motor 12 , and a steering device 13 . Such as figure 1 As shown by the two-dot dash line A1 in the middle, the outboard motor 12 can be tilted upward. Additionally, if figure 2 As indicated by the middle arrow A2, the outboard motor 12 can change its orientation to the starboard side (starboard) and the port side (port). The steering device 13 includes a rudder unit 16 having a steering wheel 15 , an electric actuator unit 17 arranged at the rear of the hull 11 , a control unit 18 , and the like. The actuator unit 17 functions as a drive source for changing the rudder angle of the outboard motor 12 . The control unit 18 performs electrical control of the actuator unit 17 . The control unit 18 per...

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Abstract

A bracket (30) for an outboard engine holds a tilt shaft (32) which is supported by support arms (40, 41). Disposed between the support arms (40, 41) is an electric actuator (50). The electric actuator (50) includes: a cover member (51); first and second electric motors (52, 53) disposed at the respective ends of the cover member (51); a feed screw (54) which is rotated by the electric motors (52, 53); a nut member (70) to be moved in the axial direction (X1) by the feed screw (54) being rotated; an actuator arm (71) which is displaced in the direction of width of a hull (11) integrally with the nut member (70); and protective boots (80, 81). The actuator arm (71) is coupled to a steering arm (35) via an engaging member (73). When the actuator arm (71) moves along the cover member (51) in the axial direction (X1), the steering angle of the steering arm (35) varies depending on the amount of movement of the actuator arm (71).

Description

technical field [0001] The present invention relates to a steering device for an outboard motor including an electric actuator unit. Background technique [0002] Conventionally, as a steering device for an outboard motor, there is known a steering device in which a hydraulic pump is provided on, for example, a steering wheel (rudder), and a hydraulic actuator driven by the hydraulic pump is arranged near the outboard motor. In this steering system, the direction of the outboard motor is changed using the hydraulic pressure generated by the above-mentioned hydraulic pump. In addition, there is also known a mechanical steering device that changes the direction of the outboard motor by transmitting the rotational motion of the steering wheel to the outboard motor through a push-pull cable. Since these steering devices are operated by so-called manual labor (force of a ship operator), there is room for improvement in that a very large operating force is required depending on s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B63H25/24B63H20/12B63H25/42
CPCB63H20/12B63H25/24B63H2025/028
Inventor 大下祥生牧田佳纮
Owner NHK MEC CORP
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