Rack-Engaging Fastener Assembly for Quick Clamping
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Solution Overview
Problem
Conventional mechanical fastener devices, such as screws and nuts, are time-consuming to attach and detach, lead to wear due to frequent rotations, and require metal materials, increasing weight and cost.
Innovation Solution
A fastener device with a body portion and a second clamping portion, featuring a shank with a rack structure and an engaging member with protruding structures, allowing for easy assembly and disassembly by forming clamping spaces, and optionally made of elastic materials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional screws and nuts are used for mechanical fastening, then the fastening connection is reliable, but the attachment and detachment process consumes much time and is difficult to operate
Solution Approach 1:
The fastener is divided into two separate components: a body portion with a clamping portion and a shank portion, and a second clamping portion. These segments can be independently attached to objects and then connected through simple insertion, eliminating the need for time-consuming rotational threading operations.
Solution Approach 2:
Instead of using the conventional approach where threaded components require rotational motion to engage, this invention inverts the mechanism by using a insertion-based engagement system where the shank portion is simply inserted into the opening of the engaging member, and connection is achieved through the interaction of protruding structures with rack structures, eliminating rotational movement entirely.
2Reliability
If screws and nuts are made of metal materials to avoid wearing out from frequent rotations, then the fastener durability is improved, but the weight and manufacturing cost increase
Solution Approach 1:
The invention changes the material parameter from traditional metal to elastic materials such as rubber or plastic. This parameter change allows the fastener to achieve sufficient durability and mechanical performance without the high density and weight of metals, while the elastic properties provide resilience and wear resistance through deformation rather than friction.
Solution Approach 2:
The invention replaces the mechanical threaded rotation system with an elastic deformation-based connection system. The protruding structures engage with rack structures through insertion and elastic deformation, eliminating the need for rotational mechanical engagement that causes wear and requires heavy metal materials.
3Productivity
If protruding structures are engaged with rack structures through insertion, then the fastening process is simplified and assembly time is reduced, but the structural complexity of the fastener components increases
Solution Approach 1:
The complex structural features are segmented into separate components: the body portion contains the clamping portion and shank portion with rack structures, while the second clamping portion contains the engaging member with protruding structures. This segmentation allows each component to have specialized simple functions, and the overall assembly achieves rapid connection through the interaction of these segmented parts.
Data Source
AI summary
A fastener device includes a body portion and a second clamping portion. The body portion includes a first clamping portion and a shank portion, where the shank portion is fixed to the first clamping portion, and the second clamping portion includes an engaging member. The engaging member is provided with an opening, and a first protruding structure. The opening allows the shank portion to pass therethrough, and that the first protruding structure is adjacent to the opening. The shank portion includes a rack structure, such that when the shank portion is inserted into the opening, the first protruding structure will be engaged with the rack structure.