Vehicle Door Sash Mounting Part Utilizing Interior Space
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Solution Overview
Problem
Conventional door sashes in vehicles do not effectively utilize the internal space of the hollow frame, leading to structural limitations and a lack of functionality, as the existing joining methods do not allow for the use of this space for mounting additional components.
Innovation Solution
A vehicle door sash design that includes a mounting part within the sash interior space, allowing for the integration of door-related components such as a window regulator, by utilizing a recessed hole configuration at the door corner where the upper sash and upright pillar sash meet, enabling the mounting of components like a wire guide member.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a hollow frame structure is used to obtain rigidity while preventing weight increase, then structural strength is improved, but the internal space becomes a dead space that cannot be utilized
Solution Approach 1:
The mounting part is nested within the hollow frame structure by forming a recessed hole inside the frame part. This allows the mounting part to be integrated into the existing hollow structure, utilizing the internal space that would otherwise be unused, while maintaining the outer hollow frame structure for rigidity and weight efficiency.
2Strength
If a cast-in insert joining method is used to join sashes, then joining strength is improved, but the internal space of the frame part is occupied by the joining member
Solution Approach 1:
Instead of filling the internal space with a cast-in insert joining member, the invention creates a mounting part by forming a recessed hole within the frame part's internal space. This approach changes the dimensional utilization from occupying the entire internal volume to creating a localized recess, thereby preserving more internal space while achieving the joining and mounting functions.
3Ease of manufacture
If the internal space is left as a dead space in conventional designs, then manufacturing simplicity is maintained, but functionality and adaptability are reduced
Solution Approach 1:
The frame part is segmented into functional zones: the outer hollow frame structure for rigidity, and an internal mounting part with a recessed hole for component installation. This segmentation allows the frame to serve multiple functions - structural support and component mounting - without significantly complicating the manufacturing process, as the mounting part is formed as an integrated feature of the frame.
Data Source
AI summary
A door sash surrounding a window opening of a vehicle door, the door sash including: a design part located on a vehicle exterior side; a frame part located on a vehicle interior side with respect to the design part so as to form a sash interior space surrounded by a wall; and a mounting part located inside the sash interior space and to which door-related components can be mounted. According to this door sash, it is possible to achieve high functionality around the vehicle door while improving the space efficiency of the vehicle door by effectively utilizing the sash interior space as a portion to which the door-related components are mounted.