Outboard Motor Mounting Device with Nested Lift Cylinder
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional outboard motor mounting devices with lift equipment are bulky, lack durability, and are prone to corrosion due to exposed metal components, while also increasing the size and weight of the device, which affects the propeller depth adjustment and navigation performance.
Innovation Solution
A compact outboard motor mounting device with a clamp bracket, swivel bracket, trim-tilt equipment, and lift equipment, where the lift cylinder is supported on the clamp bracket, and the trim-tilt equipment is positioned behind the lift equipment, minimizing exposed components and optimizing space efficiency, strength, and durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional lift equipment with exposed slide rods and double cylinder structures is used, then the outboard motor can be lifted, but the device size increases and structural complexity increases
Solution Approach 1:
The lift rod is nested inside the lift cylinder, forming a telescopic structure where the rod can extend and retract within the cylinder bore. This eliminates the need for external slide rods and double cylinder structures, significantly reducing structural complexity while maintaining the lift function.
Solution Approach 2:
The clamp bracket and lift bracket are integrated into a single unified structure, combining the functions of securing the outboard motor to the transom and providing the lift mechanism mounting points. This merging reduces the number of separate components and simplifies the overall structure.
2Ease of operation
If conventional lift equipment with exposed metal components is used, then the outboard motor can be lifted, but corrosion resistance deteriorates
Solution Approach 1:
The lift rod is nested inside the lift cylinder, minimizing the exposed metal surface area that is vulnerable to corrosion. The telescopic design ensures that only the necessary portions of the rod are exposed during operation, while the majority remains protected within the cylinder.
Solution Approach 2:
The lift cylinder acts as a protective shell enclosing the lift rod, providing a barrier against corrosive elements such as saltwater and moisture. This enclosed design significantly improves corrosion resistance compared to fully exposed rod structures.
3Ease of operation
If conventional lift equipment with exposed slide portions is used, then the outboard motor can be lifted, but foreign matter accumulation increases
Solution Approach 1:
The lift rod is nested inside the lift cylinder, creating a enclosed space that prevents foreign matter such as dust, debris, and seaweed from accumulating on the slide portions. The telescopic structure minimizes exposed surfaces where contaminants could collect.
Solution Approach 2:
The lift cylinder serves as a protective enclosure that shields the lift rod from foreign matter. This design prevents contaminants from adhering to the sliding surfaces, reducing maintenance requirements and ensuring smooth operation.
4Ease of operation
If lift equipment is attached to the hull side separately from the outboard motor, then the outboard motor can be lifted, but mounting time increases
Solution Approach 1:
The clamp bracket and lift bracket are integrated into a single unified structure that is pre-assembled with the outboard motor. This merging of components allows the entire assembly to be mounted as one unit, significantly reducing mounting time compared to separate attachment procedures.
Solution Approach 2:
The integrated bracket structure serves multiple functions simultaneously: securing the outboard motor to the transom, providing mounting points for the lift mechanism, and facilitating easy installation. This multi-functionality reduces the number of separate installation steps required.
5Device complexity
If the outboard motor position is fixed at a set height, then the mounting structure is simple, but propeller depth adjustment capability is limited
Solution Approach 1:
The lift mechanism transforms the static fixed-height mounting into a dynamic adjustable system. The telescopic lift rod can extend and retract to change the vertical position of the outboard motor, allowing the propeller depth to be adjusted according to varying load conditions while maintaining a relatively simple mounting structure.
Data Source
AI summary
An outboard-motor mounting device is provided with: a clamp bracket (20) to be attached to a stern portion (15) of a hull; a swivel bracket (60) disposed between the clamp bracket and an outboard motor body (1); a trim-tilt equipment (40) that swings the outboard motor body back and forth via the swivel bracket; and a lift equipment (30) that lifts or lowers the outboard motor body via the swivel bracket. The lift equipment having a lift cylinder (33) for lifting is liftably supported on the clamp bracket, and the trim-tilt equipment having a tilt cylinder (44) and a trim cylinder (47) is disposed behind the lift equipment so that the tilt cylinder is positioned behind the lift cylinder and the trim cylinder is positioned on the side of the tilt cylinder.