Disc Grabbing Apparatus Preventing Edge Damage
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Solution Overview
Problem
Current disc grabbing apparatuses damage optical discs by clamping their edges and create difficulties in the disc separation process due to bonding forces between adjacent discs, leading to inefficient disc handling.
Innovation Solution
A disc grabbing apparatus with a central shaft, first and second rods, and a driving mechanism that rotates to push and separate discs within a defined disc region, using supporting and groove structures to contact the disc surfaces rather than edges, reducing damage and facilitating smooth separation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the opposite two edges of the optical disc are clamped to prevent multiple discs from dropping, then the discs can be securely held, but the opposite two edges of the optical disc are easily damaged
Solution Approach 1:
The patent extracts the harmful clamping action from the disc handling process. Instead of clamping the disc edges, the invention uses a disc grabbing apparatus that pushes the disc from below through the center hole, completely avoiding contact with and potential damage to the disc edges while maintaining secure holding.
Solution Approach 2:
The patent introduces an intermediary mechanism - the disc grabbing apparatus with pushing portions that interact with the disc through its center hole rather than directly clamping the edges. This intermediary approach allows secure disc handling without the harmful edge clamping effect.
2Stability of the object's composition
If bonding force between disc surfaces is present to prevent disc separation, then discs remain stacked, but the bottommost optical disc becomes difficult to fall naturally and disc separating process fails
Solution Approach 1:
The patent applies preliminary action by using the disc grabbing apparatus to push the bottommost disc from below before separation is needed. This preliminary pushing action overcomes the bonding force between discs, allowing the bottom disc to be separated cleanly without disrupting the stack stability of the remaining discs.
Solution Approach 2:
The patent replaces the natural gravitational separation mechanism with an active mechanical pushing system. Instead of relying on the bottom disc to fall naturally (which fails due to bonding forces), the disc grabbing apparatus actively pushes the disc through the center hole, substituting passive gravitational action with controlled mechanical action.
Data Source
AI summary
A disc grabbing apparatus includes a body, a first rod and a second rod. The body includes a central shaft. The first rod includes a pushing portion and a first supporting portion sequentially disposed from top to bottom. The second rod includes a first groove and a second supporting portion sequentially disposed from top to bottom. The first and second rods define a disc region with respect to the central shaft. When the first rod and the second rod are in a first state, the pushing portion is located outside the disc region and the groove faces away from the disc region; when the first rod and the second rod rotate to a second state from the first state in a first rotation direction, the pushing portion is located within the disc region and the first groove faces the disc region.