Clothing Clip Structure With Pull-Activated Clamping Force
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Solution Overview
Problem
Conventional clips used for clothing and similar items face issues where the clamping force is insufficient, leading to items falling off, or excessive, causing marks and making removal difficult, as the clamping force is primarily determined by elastic members like springs and does not increase when the item is pulled away.
Innovation Solution
A clip design featuring pivotally connected clip members with clamping force increasing members that include a slip prevention section and transmission section, which enhances the clamping force by transmitting friction force from the object to the clip body, particularly when the object is pulled away, using screws or other fixing means to support these members.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the clamping force is increased to prevent clothing from falling off, then the reliability of the clip improves, but marks are formed on the clothing and removal becomes difficult
Solution Approach 1:
The clip transitions from a static elastic force system to a dynamic friction-based system. The clamping force increasing member is designed to rotate about a pivot point, converting the pulling force on the clothing into increased friction force between the clip and clothing, and also into increased normal force for clamping. This dynamic mechanism allows the clamping force to increase temporarily when needed without causing permanent damage.
Solution Approach 2:
The clamping force increasing member acts as an intermediary between the elastic member and the clip members. It receives the elastic force, converts it through friction at the slip prevention section, and transmits the amplified clamping force to the clothing. This intermediary mechanism enables controlled force multiplication while protecting the clothing from excessive stress.
2Reliability
If the clamping force is increased by enlarging contact surface area, then the friction force increases and prevents clothing from falling, but the device complexity increases
Solution Approach 1:
The clip is segmented into distinct functional components: the clip members for basic clamping, the elastic member for providing force, and the clamping force increasing member with slip prevention section and transmission section for force amplification. This segmentation allows each component to perform its specific function efficiently without requiring complete redesign of the entire clip structure.
Solution Approach 2:
Instead of enlarging the contact surface area statically, the invention uses a dynamic friction-based mechanism. The slip prevention section is designed to slip relative to the clip member, converting the pulling force into increased friction force and normal force through rotation about a pivot point. This dynamic approach achieves force amplification without increasing the physical contact area.
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
The clip effectively prevents clothing items from falling off while minimizing marks on the clothing by increasing the clamping force only when needed, providing a secure grip without damaging the item.
Implementation Method 1
the clamping force increasing member has a slip prevention section, disposed between leading ends of the clip body and clamped by the clip body together with the object, and a transmission section connected to the slip prevention section and fixed by the fixing means to at least one clip member of the pair of clip members, and the fixing means transmits to the clip body, via the transmission section, a friction force that the slip prevention section receives from the object
Data Source
AI summary
A clip for clamping an object (25) has a clip body (5) where a pair of clip members (1, 2) are pivotally connected to each other, clamping force increasing members (6, 7) for increasing a clamping force of the clip body; and fixing means (8) for supporting the clamping force increasing members on the clip body. The clamping force increasing members have slip prevention sections (6a, 7a) disposed between leading ends of the clip body and clamped by the clip body together with the object, and have also transmission sections (6b, 7b) connected to the slip prevention sections and fixed to the clip members by the fixing means, to cause the friction force that the slip prevention sections receive from the object to be transmitted to the clip body.