Safety Switch Mounting Layout for Toughness in Compact Housings
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Solution Overview
Problem
Existing safety switches face challenges in achieving both toughness and size reduction, as prioritizing one aspect often compromises the other.
Innovation Solution
A safety switch design featuring a casing with a metal head and bottom portion, including attachment holes for screws, and a lock pin mechanism that allows for both toughness and compact size by optimizing force transmission paths and attachment points.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the body of the safety switch is designed with increased toughness to resist actuator pull-out force, then the strength and reliability improve, but the size of the safety switch increases
Solution Approach 1:
The safety switch body is divided into a head portion and a bottom portion, with the attachment portions strategically positioned at these segmented locations. This segmentation allows the structure to maintain strength through proper force distribution while reducing overall material usage and size.
Solution Approach 2:
The attachment portions are positioned at the head and bottom portions of the body, utilizing the longitudinal dimension of the safety switch. This dimensional arrangement optimizes the moment of force resistance by distributing attachment points along the length of the body, thereby reducing the required cross-sectional dimensions and overall size.
2Volume of stationary object
If the safety switch is designed for compact size reduction, then the space efficiency improves, but the toughness and ability to resist actuator pull-out force deteriorates
Solution Approach 1:
The head and bottom portions of the body are equipped with attachment portions that have high local strength to resist actuator pull-out force. This local quality enhancement at critical locations allows the overall body to be smaller while maintaining the necessary toughness where it is most needed.
Solution Approach 2:
By positioning attachment portions at the head and bottom portions along the longitudinal dimension, the design maximizes the moment arm for force resistance. This dimensional strategy enables compact cross-sectional dimensions while maintaining sufficient toughness through optimized force distribution along the length of the device.
Data Source
AI summary
To realize both toughness and size reduction of a safety switch. A safety switch is a safety switch into and from which a bolt of an actuator is inserted and pulled out. The safety switch includes a casing having a shape elongated along a first direction, a metal head having a receiving space for receiving the bolt of the actuator and provided on a first end side of the casing in the first direction, a detector for detecting a first state in which the bolt is received in the receiving space, a lock mechanism, a switching device and a first attachment portion provided in the head and having a first attachment hole into which a first attachment member is inserted.