Rotating Rod Conveyance Structure for Damage-Free Object Lifting
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Solution Overview
Problem
Existing conveyance devices, such as robot hands, require complex mechanisms to translate fingers for lifting and lowering objects, which complicates the lifting and lowering motions and can potentially damage the objects.
Innovation Solution
A conveyance device with rotatable rod portions featuring projections that switch between facing towards and away from the object by rotation, eliminating the need for translation, and incorporating a holding member with adjustable positions to securely hold the object during movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the rod portion is made non-rotatable with a fixed projection, then the structure is simpler, but translation mechanism is required which increases device complexity
Solution Approach 1:
The rod portion is made rotatable about its longitudinal axis, transforming from a static structure to a dynamic one. This rotation enables the projection to alternately face toward and away from the object, allowing lifting and lowering operations without requiring translation mechanisms, thereby resolving the contradiction between structural simplicity and operational capability
2Ease of operation
If the projection always faces the object, then lifting is easier, but lowering requires complex translation mechanism
Solution Approach 1:
The rod portion rotates to change the orientation of the projection dynamically. During lifting, the projection faces the object; during lowering, the projection faces away. This dynamic reorientation eliminates the need for complex translation mechanisms while maintaining ease of operation for both lifting and lowering
3Adaptability or versatility
If translation mechanism is added to move rod portion, then lifting and lowering become possible, but device complexity and potential damage risk increase
Solution Approach 1:
Instead of translating the rod portion, the invention uses rotation about the longitudinal axis to achieve the same functional effect. The projection faces the object during lifting and faces away during lowering, providing full adaptability for conveyance operations while maintaining a simple structure without translation mechanisms, thus reducing both complexity and damage risk
Data Source
AI summary
Provided is a conveyance device configured to lift and move an object. The conveyance device includes a base and at least three rod portions. Each of the at least three rod portions is rotatable about a rotation axis extending along an up-down direction and has a projection. The projection protrudes from a first side surface in a direction away from the rotation axis and does not protrude from a second side surface. A distance from the rotation axis to a most protruding portion of the projection is greater than a distance from the rotation axis to the second side surface.