Disk Drive Latch Post Cover Support
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In disk drives, external loads cause the top cover to deflect, leading to binding issues with the latch mechanism, which can prevent it from functioning properly during non-operating rotational shock events.
Innovation Solution
A latch assembly with a cover support member, including a latch post and cover contacting portions, is designed to reduce friction and prevent binding by allowing the latch mechanism to float between the base and cover, ensuring continued functionality under external loads.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the top cover is made rigid to enclose internal components, then structural strength is improved, but cover deflection occurs under external load causing latch binding
Solution Approach 1:
The latch mechanism is divided into separate components: the latch body, the latch post, and the cover contacting portions. This segmentation allows the latch post to be positioned independently to support the cover, while the latch body remains free to pivot without binding, resolving the contradiction between cover rigidity and latch reliability.
Solution Approach 2:
The latch post acts as an intermediary element between the rigid top cover and the latch mechanism. It provides a dedicated support path for the cover load, preventing direct transmission of deflection forces to the latch body, thus maintaining both cover strength and latch functionality.
2Ease of operation
If the latch mechanism is designed to pivot freely, then ease of operation is improved, but binding occurs under external load preventing proper function
Solution Approach 1:
The support function for the top cover is extracted from the latch mechanism and assigned to a dedicated latch post with cover contacting portions. This separation allows the latch body to pivot freely for ease of operation while the post handles the load-bearing function, preventing binding under external loads.
Solution Approach 2:
The latch mechanism is designed with dynamic characteristics where the latch body can pivot freely during normal operation, but the latch post provides static support for the cover. This dynamic design allows the latch to operate smoothly while maintaining reliability under load through the fixed support position of the post.
Data Source
AI summary
A disk drive assembly having a base, a cover, a post extending from the base toward the cover, and a latch movably mounted on the post such that the post extends there through, wherein the post comprises a cover supporting portion configured to support the cover, and prevent the cover from compressing the latch and causing the latch from contacting both the cover and the base simultaneously when a load is applied to a portion of the cover above the latch.