Spring Clamp Assembly for Fastener-Free Face Frame Attachment
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Solution Overview
Problem
Conventional methods for securing a face frame to a cabinet box, such as using nails, staples, pocket screws, or clamps, are labor-intensive and require concealment of fastening elements, which can be aesthetically unsatisfactory and inefficient.
Innovation Solution
A modified spring clamp with elongated lever arms and a pivot pin, which allows for clamping the face frame to the cabinet box without drilling holes, using glue and the spring clamp's clamping mechanism to secure the frame without visible fasteners.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If conventional fasteners (nails, staples, pocket screws) are used to secure the face frame to the cabinet box, then the attachment strength is sufficient, but the fastening elements require concealment efforts (filling nail holes, toe-nailing) which increase labor and reduce aesthetic appearance
Solution Approach 1:
The invention extracts the fastening function from traditional mechanical fasteners (nails, screws, staples) and replaces it with a clamp-based system that applies pressure to hold the face frame against the cabinet box while adhesive cures, eliminating the need for concealed fasteners and their associated labor-intensive finishing work
Solution Approach 2:
The invention introduces an intermediary adhesive layer between the face frame and cabinet box, allowing the clamps to simply hold the components in position while the adhesive provides the bonding function, thereby separating the positioning function (clamps) from the bonding function (adhesive) and eliminating the need for traditional fasteners
2Strength
If conventional fasteners are used to secure the face frame, then the structural strength is achieved, but the aesthetic appearance deteriorates due to visible or concealable fastening elements
Solution Approach 1:
The invention removes traditional mechanical fasteners from the attachment process entirely, replacing them with a clamp-and-adhesive system where the clamps are temporary positioning devices removed after curing, leaving no visible fastening elements and preserving the clean aesthetic appearance of the cabinet
Solution Approach 2:
The adhesive acts as an intermediary bonding agent that provides the permanent structural connection without requiring visible fasteners, while the clamps serve as temporary intermediaries to apply pressure during the curing process, ensuring both strength and aesthetic appearance
3Ease of manufacture
If traditional clamps are used to secure the face frame during adhesive bonding, then the attachment process is simplified, but the clamping mechanism remains visible and requires removal after curing
Solution Approach 1:
The clamp is segmented into multiple functional components: elongated lever arms for extended reach, pivot pins for articulation, spring mechanisms for automatic clamping force, and positioning features for precise alignment. This segmentation allows each component to perform its specific function while collectively providing a simplified overall attachment process
Solution Approach 2:
The clamp incorporates dynamic elements including spring-loaded mechanisms that automatically adjust clamping force, movable lever arms that pivot into position, and flexible positioning features that adapt to slight variations in the cabinet box and face frame dimensions, thereby simplifying the attachment process through self-adjusting mechanisms
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This method eliminates the need for traditional fasteners, simplifies the attachment process, and allows for a more aesthetically pleasing finish by hiding the clamping mechanism once the glue has set, reducing labor and improving the appearance of the cabinet.
Implementation Method 1
an elongated and generally slightly curved first lever arm having a handle portion at one end thereof and a clamping portion at the other end thereof
Implementation Method 2
A pivot pin pivotally secures the ears of the first lever arm to the ears of the second lever arm whereby the lever arms may be moved between conventional clamping and non-clamping positions
Implementation Method 3
A spring is mounted on the pivot pin and engages the inner sides of the lever arms to yieldably urge the lever arms to their clamping positions
Implementation Method 4
using glue and the spring clamp's clamping mechanism to secure the frame without visible fasteners
Data Source
AI summary
A method of securing a face frame to a cabinet box whereby spring clamps clamp the face frame to the cabinet box during the gluing process. The method eliminates the need for nails, staples, pocket screws or the like. The spring clamp of the invention enables the face frame to be secured to the outer ends of the cabinet box.