Shaft Packaging Body With Notched Support Members
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Solution Overview
Problem
The existing packaging bodies for outboard motors are inadequate in suppressing axial movement of shafts, leading to instability during packaging.
Innovation Solution
A shaft packaging body with a partitioning frame and support members featuring notches that conform to the diameters of the shaft's steps, providing secure accommodation and preventing axial movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a simple packaging body structure is used, then manufacturing cost is reduced, but axial movement suppression capability deteriorates
Solution Approach 1:
The packaging body is divided into multiple support members (first lower support member, second lower support member, first upper support member, second upper support member) with distinct functions. Each support member contains notches positioned at specific locations to contact different portions of the shaft, creating a segmented support system that effectively suppresses axial movement while maintaining manufacturing simplicity.
Solution Approach 2:
The notches formed in each support member act as intermediary contact points between the packaging body and the shaft. These notches are strategically positioned to engage with the shaft's surface at specific locations, providing effective axial movement suppression through localized contact points that distribute forces evenly.
2Ease of manufacture
If uniform support is provided across the shaft, then manufacturing is simplified, but precision in accommodating stepped diameters deteriorates
Solution Approach 1:
While the support members themselves are manufactured uniformly, each support member contains notches positioned at specific locations to contact different portions of the shaft. The first lower support member and first upper support member have notches positioned to contact one portion of the shaft, while the second lower support member and second upper support member have notches positioned to contact another portion, allowing precise accommodation of the shaft's stepped diameters.
Solution Approach 2:
The notches in the support members are positioned asymmetrically relative to the shaft's geometry. The first pair of support members (lower and upper) have notches positioned at different axial locations compared to the second pair, creating an asymmetric support pattern that precisely accommodates the shaft's varying diameters along its length.
Data Source
AI summary
A shaft packaging body includes packaging material having: a partitioning frame forming a space for accommodating a shaft; a first lower side support member including a first lower notch conforming to a small-diameter side of a step between a center portion and one end portion of the shaft; a second lower side support member including a second lower notch conforming to a small-diameter side of a step between the center portion and another end portion of the shaft; a first upper side support member including a first upper notch conforming to the small-diameter side of the step between the center portion and the one end portion of the shaft; and a second upper side support member including a second upper notch conforming to the small-diameter side of the step between the center portion and the other end portion of the shaft.