System for retaining an image within a frame
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Solution Overview
Problem
Conventional methods for securing a printed image between two transparent sheets within a frame are problematic due to the danger of glass breakage, visibility of the frame's interior, and unreliable dimensional stability, especially with seasonal fluctuations in wood moldings.
Innovation Solution
The use of molded plastic sheets with integrated functional components such as recessed trays, finger holes, and a tension system, along with external alignment fixtures and snap fittings, allows for secure and safe assembly of the frame without visible fasteners, using clear glass or polymer materials for enhanced safety and aesthetics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If glass sheets are used to secure the printed image, then the image appears to float ahead against the ambient background with a pleasing appearance, but the glass sheets are dangerous to handle and subject to impact or breakage
Solution Approach 1:
The patent replaces fragile glass sheets with molded plastic sheets that are safe to handle and resistant to breakage. The plastic sheets maintain the aesthetic function of allowing the image to float against the background while eliminating the safety hazards of glass.
Solution Approach 2:
The patent uses composite construction with molded plastic sheets that integrate multiple functions: the sheet material itself provides the transparent viewing surface, while integrated recessed trays and tensioning systems provide structural support and image retention without requiring separate glass components.
2Reliability
If paired sheets of glass are fixed within a rabbet in the back of a wooden picture frame, then the image is secured, but it is difficult to secure the paired sheets reliably to one another given seasonal fluctuations in common dimensional materials such as wood moldings
Solution Approach 1:
The patent divides the securing function into separate integrated components: recessed trays that locate and retain the image, and tensioning systems that maintain pressure between sheets. This segmentation allows each component to address specific stability issues independently of wood molding fluctuations.
Solution Approach 2:
The patent uses molded plastic material properties (flexibility, dimensional stability) that are less sensitive to seasonal fluctuations compared to wood moldings. The plastic sheets and integrated components maintain consistent dimensions and securing pressure despite environmental changes.
3Shape
If an image with a transparent surround is used, then the open glass surrounding area serves cosmetically in place of an opaque picture mat, but the inside of the frame is seen which places constraints on how the frames can be attractively assembled and finished
Solution Approach 1:
The patent uses molded plastic sheets with integrated recessed trays that self-align and retain the image without requiring additional opaque mats or complex framing assemblies. The transparent sheets with integrated features simplify the overall frame construction while maintaining aesthetic appearance.
Data Source
AI summary
A spline installation device for use with a spline/rail type frame to assemble the splines to the rails. The device including a base that defines a platform for receiving a frame subassembly; and a plurality of linkages that are disposed about the platform and coupled to the base. Each linkage is configured to move between a first position in which a fence bearing surface thereof is at an angle other than 90 degrees relative to the platform and a second position in which the fence bearing surface is set at an at least substantially 90 degree angle relative to the platform for locking and holding the frame subassembly in place. The linkages further being configured to receive a spline instillation tool for locking the splines in place relative to the rails.