Axial Gripper Mechanism for Ticks
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Solution Overview
Problem
Existing tick removal devices are costly and complex due to the requirement of a thread drive for combined longitudinal and rotary movement, leading to increased manufacturing costs and complexity in the spreading mechanism.
Innovation Solution
A device with axially displaceable gripper pliers actuated by a manually operated pressure element and compression springs, allowing for simplified and reliable tick removal by maintaining tension during rotation to prevent head tearing and facilitate easy observation through a transparent housing with magnifying function.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a thread drive is used to implement combined longitudinal and rotary movement, then the tick removal function is achieved, but the manufacturing cost increases
Solution Approach 1:
The patent extracts and eliminates the thread drive mechanism from the device. Instead of using a complex threaded connection to achieve rotary movement, the invention uses a simple cam mechanism with an elevation angle that converts longitudinal pressing motion directly into rotary movement of the gripping tool, significantly simplifying the structure and reducing manufacturing cost while maintaining the tick removal function
Solution Approach 2:
The patent inverts the traditional approach by using a cam mechanism where the cam profile geometry (elevation angle) automatically converts linear motion to rotary motion. This inversion eliminates the need for thread drives and complex spreading devices, achieving the same functional result through a fundamentally different mechanical approach that is simpler and cheaper to manufacture
2Reliability
If a complex spreading device is used to spread the gripping tools, then the cavity formation is achieved, but the device complexity increases
Solution Approach 1:
The patent removes the separate complex spreading device entirely. The gripping tool is designed with resilient arms that are spring-loaded, allowing them to flex outward automatically when the cam mechanism rotates, forming the cavity without requiring a dedicated spreading mechanism. This extraction of the spreading function simplifies the overall device structure
Solution Approach 2:
The patent merges the spreading function into the gripping tool itself through the cam mechanism. The rotation of the cam directly drives the resilient arms outward to form the cavity, combining what were previously separate functions (spreading and gripping) into a single integrated motion sequence, thereby reducing device complexity
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 device provides a cost-effective and reliable method for tick removal, ensuring complete extraction without head tearing, with the transparent housing aiding in precise application and verification of removal.
Implementation Method 1
a first compression spring (16) arranged inside the housing (1) and acting on the pressure element (12) and a second compression spring (23) arranged inside the housing (1) and acting on the inner part (5)
Implementation Method 2
The front part 2 of the case 1 is made of a transparent material and has a magnifying function like a magnifying glass. The enlargement function can be achieved, for example, in that the transparent front part 2 has a plurality of lens-shaped areas distributed over the circumference or a lens-shaped curvature
Data Source
Figure 1~2
Figure 3~4
Figure 5
AI summary
The device has a gripping device (9) arranged within a housing (1) in an axially-movable manner. A gripper and another gripper (11) are movable opposite to each other. A manually actuatable pressure element (12) moves the grippers between an open position and a close position for gripping parasites i.e. ticks, on a skin. The gripping device is movably guided within an inner part (5) pressurized by a compression spring (16), where the inner part is movable in the housing. The pressure element is pressurized by the compression spring.