Hinged Split Case Assembly for Vehicle Components in Tight Spaces
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Solution Overview
Problem
Conventional cases for vehicle components, integrated with two case members and a hinge portion, pose challenges in attachment when attached to vehicle components due to the need for separate handling of the case members, especially in confined spaces.
Innovation Solution
A case design featuring first and second case members with mating surfaces, first and second coupling protrusions, and hinge protrusions that allow hinged coupling, facilitating attachment even in narrow spaces by rotating the second case member onto the first, using coupling and hinge protrusions that are separate and engageable.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the case is divided into two separate case members for attachment to vehicle components, then the attachment flexibility and ease of assembly are improved, but the complexity of the coupling mechanism between the two case members increases
Solution Approach 1:
The case is divided into two separate case members (first case member and second case member) that can be attached to vehicle components independently. This segmentation allows flexible attachment where one case member can be attached first, followed by the second case member, simplifying the assembly process in confined spaces.
Solution Approach 2:
The coupling protrusion and coupling recess are designed as complementary features that merge the two separate case members into a unified structure. The coupling protrusion from one case member fits into the coupling recess of the other case member, creating a secure connection while maintaining attachment flexibility.
2Strength
If a lock mechanism is used to couple both side edges of the case members, then the coupling strength is improved, but the ease of operation in narrow spaces deteriorates due to the need for finger operations on both sides
Solution Approach 1:
The hinge portion is extracted as a separate functional element from the traditional lock mechanism. Instead of requiring finger operations on both side edges, the hinge portion is positioned to allow coupling from one side only, removing the operational complexity while maintaining coupling strength through the engagement of the coupling protrusion and recess.
Solution Approach 2:
Instead of requiring operation on both sides of the case members, the design inverts the approach by enabling coupling from one side only. The coupling protrusion and recess are configured so that the hinge portion can be engaged from a single side, simplifying operation in narrow spaces while maintaining secure coupling.
3Stability of the object's composition
If the hinge portion is integrated with both case members, then the structural integrity is improved, but the ease of assembly in confined spaces deteriorates
Solution Approach 1:
The hinge portion is segmented as a distinct feature with a coupling protrusion that fits into a coupling recess. This segmentation allows the hinge portion to be engaged separately after the case members are positioned, maintaining structural integrity while simplifying assembly in confined spaces where incremental assembly is necessary.
Data Source
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AI summary
[Problem] A need exists for facilitating the attachment work of a case in a case where a case fitted to a vehicle component as a noise source is divided into two separate components. [Solution] A case 10 of the present disclosure is divided into a first case member 11 and a second case member 41, and has a configuration in which a first coupling protrusion 15 of the first case member 11 and a second coupling protrusion 45 of the second case member 41 are hingedly coupled. As a result, it is not necessary to insert a hand into a region below the first and second case members 11 and 41, and it is possible to facilitate the work as compared with a configuration in which engagement claws and claw engagement portions are provided at both an upper end portion and a lower end portion to fix the case members.