Telescopic Cutter Linkage for Rapid Blade Extension and Retraction
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Solution Overview
Problem
Existing handheld cutters suffer from low opening and closing operation efficiency, making them unsuitable for situations requiring quick and frequent state changes.
Innovation Solution
A telescopic cutter design featuring a cutter holder with an accommodating cavity and a sliding rail, a cutter body that slides along the rail, and a connecting rod assembly with an elastic member that stores and releases elastic force to quickly extend or retract the cutter body.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual pulling or rotating operations are used for opening and closing cutters, then the cutter can be opened and closed, but the operation time is prolonged and working efficiency is reduced
Solution Approach 1:
The sliding rail is divided into a first sliding rail and a second sliding rail connected at a central travel position. The connecting rod assembly is segmented into multiple connecting rods that can rotate independently. This segmentation allows the cutter body to be pushed only a short distance to compress the elastic member, which then automatically propels the cutter body through the remaining travel distance, dramatically reducing manual operation time and improving opening/closing efficiency.
Solution Approach 2:
The first elastic member (elastic member) is configured to compress when the cutter body is pushed manually and then automatically release stored elastic force to propel the cutter body through the central travel position and complete the opening or closing action. This self-service mechanism eliminates the need for continuous manual pushing or rotating, allowing the cutter to complete its opening/closing cycle with minimal user input, thereby significantly improving operation efficiency and reducing time loss.
2Ease of operation
If sheath-type or rail push-pull-type structures are used, then the cutter can be opened and closed, but manual operation is required which affects working efficiency when quick state switching is needed
Solution Approach 1:
The elastic member is pre-configured within the connecting rod assembly in a ready state. When the cutter body is pushed manually, the elastic member compresses and stores energy in preparation for automatic propulsion. This preliminary action ensures that once triggered by a simple push, the cutter body will automatically complete its travel through the central position and reach the extended or retracted state without requiring sustained manual effort, making quick state switching efficient and easy.
Solution Approach 2:
The connecting rod assembly incorporates rotational joints that allow the connecting rods to dynamically adjust their angles during the opening/closing process. Combined with the elastic member's dynamic compression and expansion, this dynamic mechanism transforms a simple manual push into a complete opening or closing action, making the operation easier while maintaining high working efficiency for quick state transitions.
3Adaptability or versatility
If rotary folding-type cutters are used, then opening and closing can be achieved through rotation, but operators require certain operation skills and the speed is relatively low
Solution Approach 1:
The invention replaces the traditional rotary folding mechanical system with a linear sliding system combined with elastic propulsion. Instead of requiring operators to rotate the cutter body through a folding mechanism, the cutter body simply needs to be pushed linearly along the sliding rail to compress the elastic member, which then automatically propels the cutter body through the central travel position. This substitution eliminates the need for complex rotational operations, reduces the skill requirement, and significantly increases opening/closing speed while maintaining adaptability to various use scenes.
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 telescopic cutter allows for rapid and efficient opening and closing operations through simple pushing and pressing, enhancing usability in various scenarios.
Implementation Method 1
before the cutter body crosses the central travel position, the first elastic member is compressed to store an elastic force, and after the cutter body crosses the central travel position, the first elastic member releases the elastic force to push the cutter body to slide to be in the extended state or the retracted state
Data Source
AI summary
The present disclosure relates to a telescopic cutter, including a cutter holder, a cutter body, and a connecting rod assembly. The cutter holder is provided with an accommodating cavity with an opening at one end, a sliding rail is arranged inside the accommodating cavity, and the sliding rail has a central travel position. The cutter body is movably arranged on the sliding rail. The connecting rod assembly includes connecting rods and a first elastic member, the connecting rods are movably arranged inside the accommodating cavity and rotationally connected to the cutter body, and the connecting rods are elastically connected to the first elastic member. According to the telescopic cutter provided in the present application, opening and closing operations of the cutter are simplified, thereby improving the operation efficiency of the cutter.