Fastener Holder Interference Fit for Bolt Retention During Assembly
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing fastening systems face issues with bolts easily falling out of holes in components during assembly, leading to loss and complicating manufacturing processes due to the lack of immediate screwing into threaded nuts.
Innovation Solution
A fastener holder with a rotationally symmetrical receiving opening and mounting structures that utilize an interference fit and friction-fit connection to securely hold the fastener in place until it is permanently screwed in, featuring a base body with a longitudinal design and radially extending mounting structures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a fastener is inserted into a mounting hole without immediate screwing, then the fastener can be positioned for later assembly, but the fastener may fall out and be lost
Solution Approach 1:
The fastener holder acts as an intermediary device between the fastener and the mounting hole. It temporarily retains the fastener in the mounting hole through a holding structure that engages with the fastener's shaft, preventing the fastener from falling out while allowing for later removal and permanent installation.
Solution Approach 2:
The fastener holder enables preliminary positioning of the fastener in the mounting hole before the final screwing operation. The holder is inserted first, secures the fastener in place, and allows subsequent assembly steps to be performed without risk of fastener loss.
2Reliability
If a fastener holder with complex structure is used to secure the fastener, then the fastener retention is improved, but the device complexity increases
Solution Approach 1:
The fastener holder is divided into distinct functional segments: a holding structure with engagement elements for securing the fastener, a mounting structure for insertion into the mounting hole, and a connection structure linking the two. This segmentation allows each part to perform its specific function efficiently while keeping the overall design manageable.
Solution Approach 2:
Different parts of the fastener holder have specialized local structures optimized for their specific functions. The holding structure features engagement elements tailored to match the fastener's geometry, while the mounting structure has dimensions and features suited for insertion into the mounting hole, creating a precise fit without overall complexity.
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 simple, cost-effective, and secure assembly of fasteners by preventing them from falling out, facilitating easy handling and reducing manufacturing complexity.
Implementation Method 1
According to the invention, this holding force is generated by an interference fit.achieved by a press fit between the fastener and the receiving opening.
Implementation Method 2
They serve to come into contact with the mounting hole (or a mounting hole) in a mounted state such that, particularly through the existing friction, they generate or provide a holding force in conjunction with the mounting hole.
Data Source
Figure 1~2
Figure 3
Figure 4~5
AI summary
The invention relates to a fastening means holder (1) comprising a main body (10) and at least one mounting structure (50), the main body (10) extending in a longitudinal direction (L), the main body (10) having a receiving opening (12), the receiving opening (12) extending all the way through the main body (10), the receiving opening (12) having an inner wall (14) formed rotationally symmetrically around the longitudinal direction (L), the mounting structure (50) extending transversely to the longitudinal direction (L).