Spring Reaction Force Converting Link Mechanism for IC Socket
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Solution Overview
Problem
Conventional IC socket designs experience poor operability due to increasing operation force as the cover member is pressed down, leading to a heavy feeling during mounting and weakened holding of electronic parts when raised, as the reaction force of coil springs directly opposes the operation force.
Innovation Solution
A spring reaction force converting apparatus with a link mechanism that converts the spring reaction force into a different type of force, allowing the operation force to be gradually decreased from initial application to termination, using a first and second member, a spring element, and a link mechanism that holds the spring in a compressed state, with a stopper maintaining the spring compression, and transmitting the reaction force through the link mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If coil springs are directly connected between the socket main body and cover member to provide upward reaction force, then the cover member can be pushed down to activate the pressure applying lever, but the operation force increases as the cover member is pressed further, resulting in poor operability
Solution Approach 1:
A link mechanism is introduced as an intermediary between the coil springs and the cover member. This mechanism converts the spring reaction force into a different type of force transmitted through the link mechanism, so that the operation force is gradually decreased from the initial period toward the termination period, improving operability while maintaining the spring's force-generating function
Solution Approach 2:
The link mechanism changes the parameter of force transmission by converting the direct spring reaction force into a different force characteristic. This allows the operation force to be gradually decreased as the cover member is pressed down, transforming the force profile from increasing to decreasing throughout the operation
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 apparatus improves operability by reducing the perceived operation force as the members move closer or apart, maintaining a consistent feeling throughout the operation and ensuring stable holding of electronic parts.
Implementation Method 1
a spring element which is arranged for being extended between the first and second members in parallel with these members
Implementation Method 2
a reaction force exhibited by the spring element is transmitted to the first member and the second member
Data Source
AI summary
A spring reaction force converting apparatus has first and second members arranged to be in parallel with and opposed to each other and to be capable of being moved toward and apart from each other, a spring element arranged to be extended between the first and second members in parallel thereto, a link mechanism holding the spring element between the first and second members such that the spring element is capable of being expanded and contracted, the link mechanism being connected to the first and second members; a stopper member maintaining the spring element held by the link mechanism in a condition in which the spring element is compressed by a predetermined amount in an initial condition, and an arrangement thereof in which a reaction force of the spring element is converted to a different type of force transmitted to the first and second members through the link mechanism.