Securing Nut Collar Segmentation for Bolt Protection
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Solution Overview
Problem
Securing nuts with individual separate projections can damage threaded bolts during installation, leading to chipping issues.
Innovation Solution
A collar with an internal thread extending around the threaded bolt receptacle in a closed manner, featuring collar sections with varying wall thickness and deformation to achieve clamping without damaging the bolt, ensuring the collar sections do not contribute to chipping.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If individual separate projections are used as clamping elements, then the securing nut can be produced simply, but chippings form on the threaded bolt during installation
Solution Approach 1:
The collar is divided into multiple collar sections (at least two) that are arranged at distances from one another in circumferential direction. Each collar section has internal threaded sections that extend in a necked-in manner in the clamping areas, while end areas maintain radial thread courses that do not contribute to clamping action, preventing chipping damage.
Solution Approach 2:
Different regions of the collar are given different functional properties: clamping areas have necked-in internal threaded sections that generate clamping force, while end areas have radially extending internal threaded sections that do not contribute to clamping action, preventing damage to the threaded bolt during installation.
2Stability of the object's composition
If a collar extends completely closed around the threaded bolt receptacle, then stability is maximized and chipping is prevented, but manufacturing complexity increases
Solution Approach 1:
The closed collar is segmented into multiple collar sections arranged circumferentially with gaps between them. Each section independently provides stability through its closed-loop structure around the threaded bolt receptacle, while the segmentation simplifies manufacturing compared to a fully continuous closed collar.
Data Source
AI summary
In order to improve a securing nut comprising a base member which is provided around its circumference with a key face contour, a threaded bolt receptacle which is provided with an internal thread and passes through the base member in the direction of a central axis as well as at least one clamping element which is provided on the base member, in such a manner that it is, on the one hand, simple to produce and, on the other hand, allows reliable clamping without damaging the threaded bolt it is suggested that the clamping element be a collar which is arranged on one side of the base member and in which the internal thread is continued, and that the collar extend around the threaded bolt receptacle in an essentially closed manner in circumferential direction with respect to the central axis.