Extending Jack Plate for Outboard Motor Positioning
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Solution Overview
Problem
Existing jack plates do not allow for the extension of a motor's location away from a boat's hull and transom, limiting their positioning and efficiency.
Innovation Solution
An extending jack plate design comprising a pair of transom mounting brackets, slide mounting brackets, a slide plate, adjustment blocks, and adjustment rods, which enable the motor to be positioned further away from the hull and transom by sliding and adjusting the mounting brackets and hydraulic cylinder system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If a traditional jack plate is used to position the outboard motor, then the motor can be mounted on the transom, but the motor cannot be extended further away from the hull and transom
Solution Approach 1:
The jack plate is divided into multiple segments: a transom mounting bracket, a slide plate, and adjustment blocks with adjustment rods. These segmented components can be independently positioned and connected, allowing the motor to be extended away from the transom while maintaining structural manageability through modular design.
Solution Approach 2:
The jack plate incorporates dynamic adjustment capabilities through adjustment rods that can be extended and repositioned, and slide plates that can slide along the transom mounting bracket. This dynamic structure allows the extension distance to be varied according to needs, resolving the contradiction between fixed structure and variable extension requirement.
2Reliability
If the motor is positioned closer to the transom, then the mounting structure is simpler, but the motor operates in disturbed water causing cavitation
Solution Approach 1:
The jack plate extends the motor positioning in a new dimension by projecting forward from the transom face. The slide plate and adjustment blocks create an extension that moves the motor away from the hull in the longitudinal direction, placing it in undisturbed water to prevent cavitation while maintaining a manageable structural configuration.
Solution Approach 2:
The jack plate structure acts as an intermediary between the transom and the outboard motor. By positioning the motor on this intermediate platform that extends from the transom, the motor is placed in cleaner, undisturbed water away from the hull's wake, improving reliability and preventing cavitation.
3Adaptability or versatility
If adjustment mechanisms are added to extend the jack plate, then the motor positioning flexibility is improved, but the manufacturing cost and device complexity increase
Solution Approach 1:
The adjustment mechanism is segmented into discrete components: adjustment blocks with multiple holes, adjustment rods, and slide plates. Each component is simple to manufacture individually, and their modular nature allows for easy assembly and disassembly, maintaining ease of manufacture while providing positioning flexibility.
Solution Approach 2:
The adjustment mechanism allows for parameter changes in motor positioning by enabling the adjustment rods to be extended to different lengths and the slide plates to be positioned at different locations along the transom bracket. This provides versatility in positioning while using simple mechanical components that are easy to manufacture.
Data Source
AI summary
There is described an extending jack plate, comprising several components, in combination. There is a right transom mounting bracket and a left transom mounting bracket. There is a right slide mounting bracket and a left slide mounting bracket slidably coupled to the right and left transom mounting brackets. A slide plate is slidably coupled to the right and a left slide mounting brackets. Adjustment blocks and adjustment rods provide forward and rearward adjustment.