Bag Handle Support Member Prevents Body Deformation
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Solution Overview
Problem
Existing handle attachment structures for bags cause the bag body to stretch and deform due to the handle being attached at the upper part, leading to a tendency for the handle to fall outward.
Innovation Solution
A hand-carrying portion structure featuring a support member with laminated band-shaped bodies forming an arch shape with a C-shaped cross section, which is attached to the bag body to prevent deformation and ensure stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the handle is attached to the upper part of the body, then the handle can be securely fixed, but the body and upper gore portion are drawn closer causing the body to stretch and deform
Solution Approach 1:
The invention transitions from attaching the handle at the upper part of the body (vertical attachment) to attaching it at the side surface of the body (lateral attachment). This dimensional change in attachment position prevents the body and upper gore portion from being drawn closer, thereby avoiding body stretching and deformation while maintaining secure handle fixation
Solution Approach 2:
The invention introduces a support member as an intermediary component between the handle and the body. This support member has a distal end attached to the side surface of the body and an proximal end supporting the handle, acting as a mediator that secures the handle while preventing direct stress transmission to the body that would cause deformation
2Strength
If the handle is attached to the upper part of the body, then the handle can be firmly secured, but the handle tends to fall outward deforming the body
Solution Approach 1:
The invention changes the attachment dimension from upper-part attachment to side-surface attachment. This lateral positioning provides better structural support and prevents the handle from falling outward, enhancing handle stability while avoiding body deformation
Solution Approach 2:
The support member serves as an intermediary that provides structural reinforcement for handle attachment. By positioning the support member at the side surface of the body with its distal end attached there and proximal end supporting the handle, it prevents the handle from falling outward and maintains both attachment strength and handle stability
Data Source
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AI summary
When the bag is put down, the state of the hand-carrying portion standing upward can be kept, and a bag with its bag main body hard to lose its shape can be provided. In the structure of a hand-carrying portion of a bag of the present invention, the hand-carrying member 50 has support members 100 intervened both longitudinal edges for raising the hand-carrying member 50 upward from the bag main body 12. The support member 100 is coupled, with the overlapping region of the support member 100 and the overlapping region of the hand-carrying member 50 sewed together so that a crest portion of the support member faces a crest portion of the hand-carrying member 50 so as to be positioned oppositely thereto. The support member 100 has the support region 112 formed in an arch shape with a substantially C-shaped cross section or a substantially U-shaped cross section at least near the overlapping region 110, and is fixed to the bag main body 12 in the fixing region below the support region. The hand-carrying member 50 is fixing to the bag main body in one fixing region 70 and other fixing region 72 of the hand-carrying member.