Mesh Frame Member Structure for Concealed Edge Attachment
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Solution Overview
Problem
Existing frame members face challenges in achieving accurate attachment of attachment objects while preventing spoilage of the appearance, as the edge of the sheet member often interferes with the attachment groove and lacks sufficient strength against tension.
Innovation Solution
A frame member design featuring a mesh-like sheet member with holes that stretches over a frame body with a protruding portion, allowing the sheet member to be fixed along the inner circumferential surface, concealing its edge and enhancing attachment accuracy and strength, and a molding apparatus to manufacture this configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If the sheet member edge is placed in the attachment groove, then the appearance is protected from spoilage, but the attachment accuracy deteriorates due to interference with the attachment object
Solution Approach 1:
The frame body is divided into distinct functional zones: the attachment groove for securing objects and the protruding portion for sheet member fixation. This segmentation allows the sheet member edge to be positioned in the protruding portion rather than interfering with the attachment groove, simultaneously protecting appearance and ensuring attachment accuracy
Solution Approach 2:
The protruding portion acts as an intermediary element between the attachment groove and the sheet member edge. It provides a dedicated positioning feature that mediates the relationship between these two components, enabling the sheet member to be fixed without compromising the attachment groove's function or the overall appearance
2Shape
If the sheet member edge is concealed inside the frame body, then the appearance is improved, but the strength against tension deteriorates
Solution Approach 1:
The protruding portion extends in the inward-outward direction, creating a third dimensional feature that allows the sheet member edge to be positioned strategically. This dimensional addition enables the edge to be concealed for appearance purposes while still providing sufficient structural engagement for tension resistance
3Shape
If the sheet member is stretched tightly over the frame body, then the appearance is improved, but the sheet member may tear at the edges
Solution Approach 1:
The protruding portion provides a pre-positioned support structure that cushions and distributes the tension forces on the sheet member edge before they can concentrate and cause tearing. By providing this supportive feature in advance during the design stage, the sheet member can be stretched tightly for appearance without compromising durability
Data Source
AI summary
A frame member includes a frame body and a sheet member. The frame body has a front surface, a back surface, an opening penetrating in a front and back direction of the frame body, and a protruding portion. One of the front surface and the back surface has an attachment groove. The sheet member constituted by a mesh-like member is stretched over the opening. The protruding portion is configured such that, after the sheet member is arranged in an area where the protruding portion is to be formed, a material for the frame body in an unsolidified state is filled and is solidified, to thereby form the protruding portion together with the frame body and fix the sheet member in a stretched state over the opening. The sheet member has reached one of the front surface and the back surface along an inner circumferential surface of the frame body.