Integrated Handle Latch Mechanism for Compact Storage Case
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Solution Overview
Problem
Conventional storage cases with draw latch mechanisms require multiple components and increased size due to separate locations for handles and latch mechanisms, leading to a complex structure and reduced storage volume.
Innovation Solution
A storage case design where the handle is swingably connected to the case body with a support arm and grip, allowing the latch mechanism to be integrated within the handle when downed, reducing the number of components and occupied space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If two draw latch mechanisms are provided at two locations spaced apart from each other with the handle sandwiched therebetween, then the storage case can be locked securely, but the number of components increases and the occupied area increases resulting in increased size
Solution Approach 1:
The patent merges the handle and latch mechanism into a single integrated unit. The handle (40) is swingably connected to the case body and includes a latch mechanism that fixes the case cover, combining functions that were previously separate into one component assembly, thereby reducing the total number of components while maintaining secure locking capability
Solution Approach 2:
The handle assembly serves multiple functions: it acts as both the manual operation component for opening/closing and as the latch mechanism for securing the case cover. This multi-functional design eliminates the need for separate latch mechanisms at multiple locations, reducing complexity while preserving reliability
2Reliability
If two draw latch mechanisms are provided at two locations spaced apart from each other with the handle sandwiched therebetween, then the storage case can be locked securely, but the occupied area increases resulting in increased size
Solution Approach 1:
By combining the handle and latch mechanism into a single integrated unit, the patent reduces the spatial footprint required for these components. Instead of occupying separate areas for handles and latch mechanisms at multiple locations, the integrated design consolidates them into one compact assembly, reducing the overall occupied area while maintaining secure locking functionality
3Ease of manufacture
If the handle and latch mechanism are installed separately at different locations, then each component can be optimized independently, but the overall size of the storage case increases
Solution Approach 1:
The patent integrates the latch mechanism within the handle assembly, allowing both components to be optimized together as a unified system rather than separately. This integration enables compact arrangement where the latch mechanism is positioned within the spatial envelope of the handle, reducing the overall volume required while maintaining manufacturability through coordinated design
Data Source
AI summary
A storage case where a case cover is openably and closably connected to a case body, the storage case includes a latch mechanism fixing the case cover to the case body and a handle swingably connected to the case body. The handle includes a support arm swinging about a swing shaft extending in a case width direction, and a grip extending from the support arm in the case width direction. A part of the latch mechanism is located on a side of the grip from the support arm in the case width direction when the handle is downed.