Screw Assembly With Elastic Gripping for One-Side Fastening
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Solution Overview
Problem
Conventional screw assemblies are limited in application due to the requirement that both the bolt and nut must be accessible for tightening, making them unsuitable for environments where only one space is accessible.
Innovation Solution
A screw assembly that includes a bolt with a male thread, a nut with a female thread, and a gripping member that is elastically deformable to prevent idling between the bolt and nut, allowing for 1-WAY fastening in limited installation environments where only one space is accessible.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional screw assembly requires both bolt and nut to be accessible for tightening, then reliable fastening is achieved, but applicability is limited in confined spaces where only one side is accessible
Solution Approach 1:
The invention extracts the gripping function from the traditional bolt head and concentrates it into a dedicated gripping member coupled to the thread portion. This gripping member can be accessed from only one side, allowing the nut to be tightened without requiring access to the bolt head, thus solving the contradiction between reliable fastening and applicability in confined spaces
Solution Approach 2:
The gripping member acts as an intermediary between the thread portion and the fastening objects. It transmits the tightening force from the nut to the bolt while providing a gripping surface accessible from one side only, enabling the fastening operation in confined spaces where traditional bolt heads would be inaccessible
2Reliability
If gripping member is made elastically deformable to grip the bolt, then prevention of idling is improved, but structural complexity increases
Solution Approach 1:
The gripping member utilizes elastic deformation as a key parameter change to achieve gripping. By making the gripping member elastically deformable, it can conform to the bolt shape and provide reliable gripping force to prevent idling, while maintaining a relatively simple overall structure that does not require complex mechanical components
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
Enables secure fastening of objects without the need for simultaneous access to both the bolt and nut, enhancing versatility and applicability in confined spaces.
Implementation Method 1
a gripping member which is coupled to the thread portion so as to be interposed between the bolt head and the nut, and is provided to be elastically deformable to a shape capable of gripping the bolt by a pressure applied from the bolt and the nut when the bolt and the nut are screw-coupled
Data Source
AI summary
The present invention relates to a screw assembly for fastening an object, including a bolt which is insertable into through-holes of fastening objects that are coincident with each other, and having a threaded portion having a male thread formed on at least a part of an outer circumferential surface, and a bolt head formed at one end of the thread portion inserted into the through-holes together with the thread portion, a nut having a female thread formed on an inner circumferential surface so as to be screw-coupled with the male thread, and a gripping member which is coupled to the thread portion so as to be interposed between the bolt head and the nut, and is elastically deformable to a shape capable of gripping the bolt by a pressure applied from the bolt and the nut when the bolt and the nut are screw-coupled.