Drawer Storage Box Assembly With Top-Side Rail Bracket Fastening
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Solution Overview
Problem
The existing drawer-type storage box configurations face challenges in workability and productivity due to the need to fasten the bottom surface of the cover and bracket from underneath, which complicates the assembly process and is affected by resin shrinkage, leading to variations in the attachment position and appearance.
Innovation Solution
A drawer-type storage box design where the container is fastened to the bracket through a contact surface parallel to its width direction, allowing the fastening member to be mounted from the opening portion, enabling easier assembly and adjustment of the container's position without requiring final-stage underneath fastening, thus improving workability and reducing shrinkage-related appearance issues.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the bottom surface of the cover and bracket are fastened through a bolt from underneath, then the attachment position can be adjusted according to shrinkage, but the workability and productivity deteriorate
Solution Approach 1:
The fastening direction is inverted from the conventional underneath-fastening approach to top-side fastening through the opening portion. This allows the fastening member to engage the container and bracket from above, eliminating the need to access the bottom surface and significantly improving assembly productivity while maintaining positioning accuracy through the contact surface design
2Ease of manufacture
If the container is made of resin with large shrinkage, then the container can be formed, but the attachment position varies significantly in the vertical direction due to differential shrinkage
Solution Approach 1:
The contact surface is designed to be substantially parallel to the width direction of the container, creating a geometric relationship that decouples vertical position from width-direction shrinkage variations. This parameter change in surface orientation ensures that even with significant resin shrinkage, the attachment position in the vertical direction remains consistent, eliminating appearance deterioration
Solution Approach 2:
The container is designed to be movable in the width direction relative to the bracket by loosening the fastening force, allowing for dynamic adjustment during assembly to compensate for shrinkage variations. This dynamic positioning capability enables precise attachment position control despite resin shrinkage, ensuring consistent appearance quality
Data Source
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AI summary
A main object is to improve a workability when assembling a container through an inclined slide rail such that a clearance of an upper portion of a cover is reduced. The present disclosure relates to a drawer-type storage box (2) mounted on a vehicle V including a box-shaped resin container (4) having on a top thereof an opening portion (3), a slide rail (5) that inclines relative to a width direction Y of the container (4), a bracket (6) that connects the slide rail (5) to the container (4), and a cover (7) that stores the container (4) and to which the slide rail (5) is directly or indirectly attached, wherein the container (4) has a contact surface (8) that contacts the bracket (6) and the contact surface (8) is substantially parallel to a width direction Y of the container (4), wherein a fastening member (9) mounted from the opening portion (3) side of the container (4) fastens the container (4) and the bracket (6) by the contact surface (8), and the container (4) is movable in a width direction Y relative to the bracket (6) by loosening a fastening force of the fastening member (9).