Contact Retaining Part with Radial Deflection Lock
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Solution Overview
Problem
Conventional holding parts for pin-shaped contact elements fail to securely retain the contact elements under high tensile forces, leading to potential detachment during pulling, despite having primary safety devices with axial stops and radial deflection capabilities for easy installation.
Innovation Solution
A secondary safety device that rests radially on the primary safety device to prevent radial deflection, combined with an additional safety device providing a rigid axial stop, ensures the contact element is securely held in both pulling and insertion directions, using a combination of elastic and inelastic fuses with specific contact surfaces and adjustable positions to enhance stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the primary safety device is made radially deflectable to enable quick and user-friendly installation, then the ease of operation is improved, but the reliability deteriorates because the contact element can become detached under high tensile forces
Solution Approach 1:
The safety device is divided into two independent functional parts: a radially deflectable primary safety device for easy installation and a secondary safety device for reliable retention. The primary safety device includes a radially deflectable fusion element with an axial stop, while the secondary safety device includes a rigid fusion element that prevents radial deflection. This segmentation allows each part to fulfill its specific function optimally without compromising the other.
Solution Approach 2:
The secondary safety device is designed to prevent radial deflection of the primary safety device beforehand, ensuring that the primary safety device maintains its position and function under high tensile forces. The rigid fusion element of the secondary safety device acts as a pre-established protective measure against potential failure of the radially deflectable primary safety device.
2Reliability
If a tension lock with axial stop is provided to prevent pull-out, then the reliability is improved, but the ease of operation deteriorates because installation becomes more difficult
Solution Approach 1:
The safety device is divided into two independent functional parts: a radially deflectable primary safety device for easy installation and a secondary safety device for reliable retention. The primary safety device includes a radially deflectable fusion element with an axial stop, while the secondary safety device includes a rigid fusion element that prevents radial deflection. This segmentation allows each part to fulfill its specific function optimally without compromising the other.
Solution Approach 2:
The primary safety device is designed with radial deflectability, allowing it to dynamically change its position during installation to facilitate easy insertion of the contact element. After installation, the secondary safety device restricts this deflection, maintaining reliability under operational loads.
3Reliability
If the primary safety device is made rigid to prevent detachment, then the reliability is improved, but the ease of operation deteriorates because quick and user-friendly installation is compromised
Solution Approach 1:
The safety device is divided into two independent functional parts: a radially deflectable primary safety device for easy installation and a secondary safety device for reliable retention. The primary safety device includes a radially deflectable fusion element with an axial stop, while the secondary safety device includes a rigid fusion element that prevents radial deflection. This segmentation allows each part to fulfill its specific function optimally without compromising the other.
Solution Approach 2:
The primary and secondary safety devices are combined in a functional hierarchy where the secondary safety device supports and restricts the primary safety device. The rigid fusion element of the secondary safety device provides the necessary structural support to prevent radial deflection of the radially deflectable primary safety device, merging the advantages of both rigid and flexible designs.
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 solution effectively secures the contact element with high tensile strength, preventing detachment under tensile forces and allowing for easy assembly by preventing radial deflection of the primary safety device, thus ensuring reliable retention in both directions.
Implementation Method 1
The primary safety device (30) is designed to be radially deflectable and has an axial stop (32) on which a projection (110) of the contact element (100) accommodated in the receiving space (22) can strike, so that the contact element (100) is secured in the pulling direction (Z) directed counter to the insertion direction (E)
Data Source
Figure 1~2
AI summary
The invention relates to a retaining part (10) for the pull-resistant holding of a pin-shaped contact element (100), comprising a housing (20) with an accommodation space (22) for accommodating the contact element (100) and at least one primary securing element (30) which protrudes into the interior of the accommodation space (22) and can be radially deflected, having an axial stop (32) for a projection (110) of the contact element in order to secure the contact element in a pull direction (Z) opposite to an insertion direction (E), wherein a secondary securing element (40), which in a securing position contacts at least in sections the outside of the primary securing element (30), is provided to prevent the radial (R) deflection of the primary securing element (30).