Magnetic Leap Block Mounting for Lens Fixation
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Solution Overview
Problem
Conventional blocking devices mechanically fix the leap block to the ball plunger, leading to poor fixation when the leap block is worn, requiring frequent adjustments or replacements.
Innovation Solution
A blocking device utilizing a lifting/lowering mechanism with a magnet and wire, where a spring supports the leap block attachment part, and a wire connected to a pulley system pulls the attachment part upward, securely attaching the leap block to the blocking device housing using magnetic forces, allowing for easy attachment and detachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a ball plunger mechanism is used to mechanically fix the leap block, then the leap block can be attached to the lens, but the fixation becomes poor when the leap block is worn, requiring frequent adjustments or replacements
Solution Approach 1:
The patent replaces the mechanical ball plunger fixing system with a magnetic field-based attachment system. Magnets are embedded in both the leap block and the blocking device housing, creating a magnetic attraction force that securely holds the leap block without mechanical contact. This substitution eliminates wear between mechanical components while maintaining reliable fixation.
Solution Approach 2:
The patent changes the attachment mechanism from mechanical interlocking (ball and socket) to magnetic field interaction. By utilizing magnetic field strength as the attachment parameter, the system achieves reliable fixation without the wear and tolerance issues inherent in mechanical systems. The magnetic force can be adjusted by changing magnet strength or positioning.
2Reliability
If a mechanical ball plunger system is used, then the leap block can be secured, but the device requires frequent maintenance and component replacement due to wear
Solution Approach 1:
The patent eliminates mechanical contact between the ball plunger and leap block by using magnetic fields for attachment. The magnets embedded in the blocking device housing and leap block create a contactless holding force, preventing wear on both the stationary housing components and the movable leap block, thereby extending component service life.
Solution Approach 2:
The magnetic attachment system provides self-aligning and self-centering functionality. The magnetic field automatically guides the leap block into the correct position and maintains secure attachment without requiring precise mechanical tolerances or frequent adjustments, reducing maintenance needs.
3Ease of operation
If a spring-supported lifting mechanism is used to attach the leap block, then the attachment and detachment become easier, but the device complexity increases
Solution Approach 1:
The patent employs a spring-loaded mechanism that automatically adjusts to maintain magnetic attachment force. The spring provides continuous pressure to keep the magnets in optimal contact, and the system automatically adapts to variations in leap block positioning or wear, maintaining ease of operation without requiring complex control systems.
Solution Approach 2:
The spring mechanism automatically compensates for wear and positioning variations, maintaining consistent magnetic attachment force without requiring manual adjustment. The system self-regulates the pressure applied to the magnets, ensuring reliable operation while keeping the mechanism relatively simple.
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 enables convenient and stable mounting of the leap block to a lens, reducing the need for mechanical adjustments and component wear, while ensuring easy attachment and detachment.
Implementation Method 1
a spring (61) having a lower end that supports the leap block attachment part (21) and an upper end that supports the blocking device housing (41), the spring (61) pushing the leap block attachment part (21) downward by an elastic force
Implementation Method 2
a leap block (51) attached to the lower end of the leap block attachment part (21) by an attractive force of magnets
Data Source
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AI summary
Disclosed is a blocking device and method for mounting a leap block to a lens by utilizing a lifting/lowering mechanism using a magnet and a wire. The blocking device comprises: a blocking device housing (41) having a guide (31) formed therein; a leap block attachment part (21) mounted to be movable up and down on the guide (31) of the blocking device housing (41); a spring (61) having a lower end that supports the leap block attachment part (21) and an upper end that supports the blocking device housing (41), the spring (61) pushing the leap block attachment part (21) downward by an elastic force, so that a lower end of the leap block attachment part (21) protrudes below a lower end of the blocking device housing (41); a wire (11) having one end connected to a pulley (15) driven by driving means (93) and the other end connected to the leap block attachment part (21), the wire (11) pulling the leap block attachment part (21) upward when the pulley (15) rotates; a leap block (51) attached to the lower end of the leap block attachment part (21) by an attractive force of magnets; and a blocking arm (71) coupled to the blocking device housing (41) and configured to move the blocking device housing (41) up and down.