Repositionable Drawer Pull Assembly with Multi-Position Mounting Holes
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Solution Overview
Problem
Current door and drawer pulls are fixed in predetermined locations during manufacturing, limiting user choice for optimal ergonomics and design, and cannot be repositioned without special tools or modifying the underlying structure.
Innovation Solution
A pull assembly with six holes on the rear surface, arranged in three complementary pairs, allowing alignment with two standard bore holes for positioning at the factory or by the user, enabling relocation to left, right, or center without additional modifications or tools.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If pulls are fixed in predetermined locations during manufacturing, then manufacturing simplicity and inventory management are improved, but user ergonomics and design flexibility deteriorate
Solution Approach 1:
The pull assembly is segmented into a base portion with multiple hole pairs and a pull portion. The base portion contains three pairs of holes at different positions (left, center, right), allowing the pull to be installed in multiple locations. This segmentation enables the pull to adapt to different user ergonomic preferences while maintaining a simple manufacturing process, as the base portion is a single component that can be mass-produced with all hole pairs pre-drilled.
Solution Approach 2:
The pull assembly is designed as a universal component that can serve multiple functions and positions. The base portion with three pairs of holes allows the same pull assembly to be installed at left, center, or right positions on drawers or doors. This multi-functionality resolves the contradiction by providing manufacturing simplicity (single component design) while enabling user choice for optimal ergonomics.
2Manufacturing precision
If pulls are fixed in predetermined locations, then manufacturing precision and consistency are improved, but post-installation repositioning capability deteriorates
Solution Approach 1:
The base portion is prepared in advance with three pairs of holes drilled at precise locations during manufacturing. This preliminary action ensures manufacturing precision and consistency, as all hole positions are accurately established before the pull leaves the factory. Simultaneously, this pre-preparation enables easy repositioning, as users can simply choose which pair of holes to use without requiring additional drilling or modification during installation or later repositioning.
3Adaptability or versatility
If additional mounting holes are added for repositioning, then repositioning flexibility is improved, but device complexity and manufacturing cost deteriorate
Solution Approach 1:
The base portion features three pairs of holes with different local characteristics - each pair is positioned at a specific location (left, center, right) with appropriate spacing. This local quality variation allows the pull to be positioned at different locations to suit user preferences. While multiple hole pairs increase the base portion complexity slightly, the design is optimized so that all holes are drilled during initial manufacturing, avoiding the need for additional complexity during installation or repositioning.
Data Source
AI summary
A pull assembly that affords users the option of one of at least three positions along an operatively associated drawer or door board, wherein the drawer or the door board provide the conventional manufacturer pair of bore holes spaced apart. The pull assembly provides three pairs of complimentary holes, each pair spaced apart to align with the pair of bore holes of the drawer or the door board. The three pairs of complimentary holes are arranged so that every other hole of the pull assembly defines a pair of complementary holes, wherein two pull assembly holes are adjacent to each other near a middle portion of the pull assembly. The holes on the back of the pull could be four, five or six aligned to the two boring holes of the door or drawer.