Server Cage Handle Assembly With Self-Unlocking Rotation

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Solution Overview

Problem

Conventional movable handles for servers require manual unlocking and have limited opening angles, leading to potential interference and damage during installation or removal, and cause operational inconvenience.

Innovation Solution

A handle assembly with a rotatable handheld member and latch member that allows for two-stage rotation and engagement/disengagement with the cage, facilitated by restoring members and movable fasteners, ensuring sufficient opening angles and improved operational convenience.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a conventional movable handle is used that requires manual unlocking, then the handle can be secured to the rack, but the opening angle is limited and operational convenience deteriorates

Engineering Contradiction:

Improvesecure attachmentVSAvoidoperational convenience

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The handle assembly performs self-unlocking through its own rotational movement. When the handle rotates beyond 90 degrees, the latch member automatically disengages from the locking position without requiring separate manual unlocking actions, making the system serve itself

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The handle transitions from a static locked position to a dynamic unlocked position through continuous rotation. The latch member dynamically shifts from engaged to disengaged state based on the handle's rotation angle, enabling flexible operation rather than fixed positioning

Inventive Principle:

Principle #15Dynamics

2Volume of moving object

If a conventional movable handle with limited opening angle is used, then the structure remains compact, but interference between server and rack occurs during installation or removal

Engineering Contradiction:

Improvecompact structureVSAvoidinterference and damage risk

Core Design Contradiction:

Volume of moving objectVSObject-affected harmful factors

Solution Approach 1:

The handle rotation extends into a second dimensional space by allowing rotation beyond the initial 90-degree plane. This additional rotational dimension provides the extra clearance needed to avoid interference with the rack and server during installation or removal operations

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

3Reliability

If manual unlocking is required before opening the handle, then the latch mechanism provides secure locking, but operational steps increase and convenience deteriorates

Engineering Contradiction:

Improvesecure lockingVSAvoidoperational steps

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The unlocking action and handle opening action are merged into a single continuous rotational motion. The latch disengagement and handle rotation occur simultaneously rather than as separate steps, reducing operational time and complexity while maintaining secure locking when closed

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentUS20250374470A1Electronic device and handle assembly

Publication Date: 2025.12.04 INVENTEC PUDONG TECH CORPOARTION

AI summary

An electronic device includes a rack, at least one cage, at least one handle assembly and at least one host. The at least one cage is disposed in the rack. The at least one handle assembly includes a fixing member, a movable handle, a handheld member and a latch member. The fixing member is disposed on a side of the at least one cage. An end of the movable handle is movably disposed on the fixing member. The handheld member is rotatably disposed on another end of the movable handle. The latch member is disposed on the handheld member. The latch member is engaged with another side of the at least one cage or is disengaged from another side of the at least one cage via the rotation of the handheld member. The at least one host is removably disposed in the at least one cage.