Boat Drive Zero Position Mark for Manual Alignment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional boat drives with pivotable underwater housings lack a method for simple manual operation in case of motorized swivel drive or control failure, as the current pivoting position of the underwater housing cannot be visually determined from inside the boat, making it difficult to set the zero position for directional control and maintenance.
Innovation Solution
A boat drive with a zero position mark on the swivel drive's limiting element, visible through a viewing window in the gear housing, allows for easy manual determination and setting of the zero position, ensuring the underwater housing is aligned correctly for directional control and maintenance, even without a motorized swivel drive.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a motorized pivot drive is used to control the underwater housing, then directional control capability is improved, but the system becomes inoperable when the motor fails and lacks manual adjustment capability
Solution Approach 1:
The system enables manual operation of the pivot drive through self-service design elements: the viewing window allows the operator to directly observe the position mark, and the manual coupling mechanism enables direct manual rotation of the propeller shaft assembly without requiring specialized tools or external assistance. This self-service capability ensures the system remains operational even when the motorized pivot drive fails.
2Object-affected harmful factors
If the pivot drive components are enclosed in the gear housing for protection, then protection against environmental factors is improved, but visual access to the underwater housing position is lost
Solution Approach 1:
The position mark serves as an intermediary visual indicator that translates the internal position of the underwater housing into observable information. The viewing window acts as an intermediary that allows light and visual information to pass from the enclosed gear housing interior to the external environment, enabling observation without compromising the protective enclosure.
3Reliability
If manual operation capability is added for emergency use, then reliability upon failure is improved, but device complexity increases due to additional components
Solution Approach 1:
The propeller shaft assembly serves multiple functions: it is driven by the motorized pivot drive under normal conditions, and can be manually rotated when the motor fails. The viewing window and position mark system also serve dual purposes: protecting internal components while enabling visual observation. This multi-functionality reduces the need for separate dedicated emergency components.
Data Source
Figure 1
Figure 2
AI summary
The invention relates to a boat drive (1) having an underwater housing (10) arranged outside of a boat body (7) and such that it can pivot relative to the boat body (7) about a vertical pivot axis (11), in which housing at least one propeller shaft (13) is drivably mounted, and having a pivot drive, which is arranged in the interior region (6) of the boat body (7), for pivoting the underwater housing (10) for the purpose of controlling the direction of the boat. On an element of the pivot drive is provided a zero position mark (25) with which it can be easily determined when the underwater housing (10) is in a zero position.