Hardware handle assembly
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Solution Overview
Problem
Existing handle assemblies for cabinetry and furniture often require specific fastener mounting patterns, making it difficult to find replacement handles that match and securely attach to various mounting configurations, leading to wear and replacement challenges.
Innovation Solution
A handle assembly with a slot of consistent width along its length, featuring a narrow region for fastener insertion and an enlarged region to receive fastener heads, allowing for adjustable center-to-center mounting without additional posts, and utilizing externally and internally threaded fasteners for secure attachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a handle assembly uses fixed fastener mounting positions, then the structure is simple and easy to manufacture, but it cannot accommodate various mounting patterns and reduces versatility
Solution Approach 1:
The handle assembly is divided into separate components: a handle body with a slot and distinct fastener mounting positions. The slot is segmented into a narrow region for fastener passage and an enlarged region for receiving fastener heads, allowing the fasteners to be positioned at various locations along the slot length while maintaining a unified handle structure.
Solution Approach 2:
The handle body with its slot design serves multiple functions: it provides a mounting surface, guides fastener insertion through the narrow region, secures fastener heads in the enlarged region, and allows accommodation of different fastener spacing patterns. This single structure replaces the need for multiple specialized handle designs for different mounting patterns.
2Adaptability or versatility
If adjustable posts are added to accommodate various mounting patterns, then versatility improves, but device complexity and difficulty of installation increase
Solution Approach 1:
The invention eliminates the need for separate adjustable posts by integrating the positioning function directly into the handle body through the slot design. The slot itself becomes the positioning mechanism, with its narrow region allowing fastener shanks to pass through and its enlarged region securing the fastener heads, removing the need for additional adjustment components.
Solution Approach 2:
The slot structure performs self-positioning and self-adjustment functions. The narrow region automatically guides fastener shanks into correct alignment, while the enlarged region automatically secures fastener heads at appropriate positions, eliminating the need for manual adjustment mechanisms or additional posts that would require complex installation procedures.
3Adaptability or versatility
If the slot width varies along its length, then fastener heads can be better received, but manufacturing precision and consistency become more difficult to maintain
Solution Approach 1:
The slot exhibits local quality variation: the narrow region has a consistent, smaller width optimized for fastener shank passage, while the enlarged region has a larger width specifically at its base for receiving fastener heads. This localized dimensional variation is precisely controlled during manufacturing, allowing the slot to serve dual functions while maintaining overall manufacturing consistency through standardized production processes.
Data Source
AI summary
A handle assembly is provided with a handle sized to be grasped manually with a slot formed along a length. A first plurality of fasteners is provided, each with a shank and a head sized to be received in the slot to fasten the handle to a drawer or a door at various fastener mounting patterns. A method to install a handle assembly inserts a shank of at least one fastener through an aperture in a drawer or a door. A handle is provided that is sized to be grasped manually with a slot formed along a length. The slot of the handle is slid along a head of the at least one fastener. The at least one fastener is tightened.