Slide Rail 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 featuring a rail with specific openings and a positioning member comprising a base, resilient arm, and restriction portion, where the resilient arm moves to prevent deformation by distributing impact between contact portions, and a bent plate with an operation end allows for secure engagement and disengagement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the resilient member is used to position the fixing pin in the keyhole slot, then the positioning function is achieved, but the resilient member deforms under impact from vibration or pulling/pushing operations
Solution Approach 1:
The patent introduces a positioning member as an intermediary component between the fixing pin and the resilient member. This positioning member includes a positioning portion that contacts the fixing pin and a restricting portion that limits the movement of the resilient member. The intermediary positioning member absorbs and distributes the impact forces, preventing direct transmission to the resilient member and avoiding its deformation while maintaining reliable positioning function.
Solution Approach 2:
The positioning member with its restricting portion provides beforehand cushioning by pre-limiting the movement range of the resilient member. The structure is designed to absorb impact forces from vibration or pulling/pushing operations before they can cause deformation to the resilient member. The positioning member acts as a protective buffer that is already in place to cushion against potential impacts.
2Strength
If the resilient member is made more robust to prevent deformation, then the positioning function is maintained under impact, but the device complexity increases
Solution Approach 1:
The patent segments the positioning mechanism into distinct functional components: the positioning member with its base, resilient arm, positioning portion, and restricting portion. By dividing the mechanism into these segments, each component can be optimized for its specific function. The positioning member handles impact absorption and positioning, while the resilient member focuses on providing elastic force, avoiding the need to make the resilient member overly robust and complex.
Solution Approach 2:
The positioning member incorporates a resilient arm that can dynamically adjust its position and absorb impact forces through elastic deformation. This dynamic capability allows the mechanism to handle impact loads without requiring excessive structural strength in any single component, thereby maintaining simplicity while ensuring durability.
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 reinforces the structural strength of the resilient member, preventing deformation and ensuring secure positioning even under impact, thereby maintaining the positioning function effectively.
Implementation Method 1
The resilient arm is movably away from the rail to change position of the restriction portion
Implementation Method 2
The second contact portion contacts the first contact portion of the rail
Data Source
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AI summary
A positioning mechanism for a quick release device of a slide assembly includes an opening (14) in a rail (10) and a positioning member (12) located corresponding to the opening (14). The rail (10) has a first contact portion (16) adjacent to the opening (14) which has an open portion (18) and a reception portion (20) communicating with the open portion (18). The positioning member (12) includes a base (22), a resilient arm (24), a restriction portion (26) and a second contact portion (28). The base (22) is fixed to the rail (10). The resilient arm (24) is connected between the base (22) and the restriction portion (26). The restriction portion (26) has a first contact end (32) located corresponding to the reception portion (20). The second contact portion (28) is connected to the restriction portion (26). An enclosed area is defined between the first contact end (32) and the reception portion (20). The second contact portion (28) contacts the first contact portion (16) of the rail (10) such that the first contact end (32) is secured.