Slide Assembly Quick-Release Positioning Against Resilient Arm Deformation
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Solution Overview
Problem
Conventional positioning mechanisms for quickly and securely connecting instruments to slide assemblies often result in deformation of resilient members due to impact, leading to failure in maintaining the positioning function.
Innovation Solution
A positioning mechanism with a rail and positioning member that includes a resilient arm and restriction portion, where the resilient arm is movably connected between a base and restriction portion, and a second contact portion is used to distribute impact, preventing deformation by engaging with a first contact portion on the rail.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the resilient member is used to position the fixing pin in the keyhole slot, then the instrument can be quickly connected to the slide assembly, but the resilient member deforms under impact from vibration or pulling forces
Solution Approach 1:
The positioning mechanism is divided into two separate contact portions: a first contact portion (reception portion) that receives the fixing pin and a second contact portion (on the resilient member) that contacts the rail. This segmentation allows each part to perform its specific function independently, preventing the resilient member from bearing impact forces that would cause deformation.
Solution Approach 2:
The rail acts as an intermediary structure between the resilient member and the fixing pin. The second contact portion on the resilient member transfers forces to the rail rather than directly to the fixing pin or experiencing direct impact, protecting the resilient member from deformation while maintaining positioning functionality.
2Reliability
If the resilient member bears impact forces during installation or vibration, then the positioning function can be maintained, but the resilient member deforms and fails
Solution Approach 1:
The rail serves as a mediator that absorbs and distributes impact forces. When the instrument is pulled or vibrated, the second contact portion on the resilient member transfers these forces to the rail structure rather than allowing the resilient member to bear the full impact, preventing deformation and failure.
Solution Approach 2:
The design anticipates impact forces from vibration or pulling by structuring the force transmission path through the rail before the forces reach the resilient member. This beforehand cushioning prevents the resilient member from experiencing damaging stresses that would cause deformation.
3Ease of manufacture
If the fixing pin is inserted directly into the enlarged hole and positioned by the resilient member, then assembly is simple, but the resilient member is susceptible to deformation from impact
Solution Approach 1:
The contact interface is segmented into two parts: the first contact portion (reception portion) that provides the positioning geometry and the second contact portion on the resilient member that provides elastic contact with the rail. This segmentation maintains assembly simplicity while protecting the resilient member from deformation by distributing forces through the rail structure.
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 mechanism effectively secures the instrument to the slide assembly by distributing impact forces, preventing deformation of the resilient member and ensuring reliable positioning, even under vibration or external forces.
Implementation Method 1
a resilient arm (24), a restriction portion (26) and a second contact portion (28), wherein the positioning member is fixed to the rail by the base and located corresponding to the opening. The resilient arm is connected between the base and the restriction portion. The resilient arm is movably away from the rail to change position of the restriction portion.
Data Source
AI summary
A positioning mechanism for a quick release device of a slide assembly includes an opening in the rail and a positioning member located corresponding to the opening. The rail has a first contact portion adjacent to the opening which has an open portion and a reception portion communicating with the open portion. The positioning member includes a base, a resilient arm, a restriction portion and a second contact portion. The base is fixed to the rail. The resilient arm is connected between the base and the restriction portion. The restriction portion has a first contact end located corresponding to the open portion. The second contact portion is connected to the restriction portion. An substantially enclosed area is defined between the first contact end and the reception portion. The second contact portion contacts the first contact portion of the rail such that the first contact end is secured.