Outboard Motor Support Cradle for Lateral Trailering Stability
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Solution Overview
Problem
Existing outboard motor support devices provide inadequate lateral support during trailering, leading to potential damage from lateral movements and require separate steering clips for additional installation complexity.
Innovation Solution
An outboard motor support device with a transom connection mechanism and pivot joint that provides both vertical and horizontal stabilization, using plunger pin mechanisms and a motor cradle to ensure secure engagement and alignment with the motor, absorbing various force vectors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If a rigid rod-type support device is used to provide vertical support to the outboard motor, then the motor is supported during trailering, but the device provides little or no resistance to lateral movements of the motor
Solution Approach 1:
The support device is divided into multiple functional segments: a vertical support rod for gravitational load, lateral restraint arms with adjustable positioning for horizontal stability, and a rigid base for mounting. Each segment addresses specific directional forces, collectively providing comprehensive motor stabilization during trailering.
2Reliability
If separate steering clips are added to restrain lateral movement, then lateral stability is improved, but the device complexity and installation steps increase
Solution Approach 1:
The lateral restraint function is merged with the primary support structure by integrating adjustable restraint arms directly into the support device framework. These arms share the same mounting base and adjustment mechanism as the vertical support, eliminating the need for separate steering clips while providing comparable lateral stability.
3Ease of operation
If the motor is lowered onto the support device using the trim mechanism, then the motor is positioned for support, but the device may become dislodged during trailering
Solution Approach 1:
The support device is pre-positioned and secured to the transom bracket before motor installation. The rigid base with multiple mounting points is attached in advance, creating a stable foundation that prevents dislodgment during subsequent motor lowering and trailering operations.
4Ease of manufacture
If a simple rod-type support is used, then the device is easy to install, but it may scratch or mar the lower unit of the motor
Solution Approach 1:
A padded contact interface is introduced as an intermediary between the rigid support structure and the motor's lower unit. This padding layer maintains the simplicity of the overall device while preventing direct metal-to-metal contact that could cause scratching or marring of the motor surface.
Data Source
AI summary
An outboard motor support device includes a transom connection mechanism, a pivot joint, and a motor support. The transom connection mechanism engages directly with a transom bracket to maximize stability and is configured to provide a consistently correct angular orientation of the motor support relative to the motor during use. In particular, the pivot joint adjustably aligns to the motor is a desired orientation during assembly to ensure a firm and “nested” engagement with the lower unit of the motor in the motor support. The motor support can be designed to fit specific motors, allowing for maximum stability and maximum surface area contact when properly aligned and engaged with the motor. The present outboard motor support device is formed as a single unit that provides vertical support as well as horizontal stabilization to the motor during transit, thereby also preserving the transom brackets and tilt/trim mechanism of the motor.