Press Structure Resilient Rod Inclined Surface Guide
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Solution Overview
Problem
Conventional press structures for retractable pens and correction tapes have a short service life due to abrasive damage from frictional engagement, leading to mechanical failure after a limited number of uses, and their complex structure makes them difficult to construct.
Innovation Solution
A press structure with a mounting board and a resilient piece, including a torsion spring and a resilient rod, where the resilient rod is deformable laterally and vertically, allowing surface-to-surface contact with inclined surfaces, eliminating the need for guiding terraces and relying on frictional engagement, thus preventing abrasive damage and simplifying the structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If guiding terraces are provided inside the sliding track for frictional engagement, then the torsion spring can be guided during button pressing, but the sliding track surface is abraded away over time leading to mechanical failure
Solution Approach 1:
The invention extracts the guiding function from the sliding track by removing the guiding terraces. Instead, guiding blocks with inclined surfaces are provided on the mounting board to guide the resilient piece. This separation eliminates the abrasive friction between the torsion spring and the sliding track, preventing wear and extending service life while maintaining the guiding function during button pressing operations.
2Ease of operation
If multiple guiding terraces are provided for the torsion spring to slide, then the spring can be properly guided during pressing movement, but the structure becomes complicated and difficult to construct
Solution Approach 1:
The guiding function is extracted from the sliding track and relocated to separate guiding blocks. This simplifies the sliding track to a basic linear groove while the guiding blocks with inclined surfaces provide all necessary guidance. The structure becomes easier to construct as the complex multi-terrace track is replaced with simpler components that achieve the same guiding purpose.
Solution Approach 2:
The guiding function is segmented into separate guiding blocks positioned at different locations on the mounting board. Each guiding block handles specific aspects of the resilient piece guidance independently. This segmentation simplifies the overall structure by dividing the complex guiding task into manageable, easily manufactured components rather than requiring a single complex sliding track.
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 extends the service life of the press structure to over 500 uses by preventing mechanical failure from abrasive damage and simplifying the construction of the mounting board, allowing reliable operation without the need for guiding terraces.
Implementation Method 1
a resilient piece is fixedly provided; the resilient piece comprises a spring that is vertically deformable along with a downward movement of the mounting board
Implementation Method 2
A press structure with a mounting board and a resilient piece, including a torsion spring and a resilient rod
Data Source
AI summary
A press structure for a press type stationery, having mounting board (1), a button (400) and a resilient piece. The mounting board has a recess (11). A position limiting block (12) is provided at the front surface of the mounting board in this recess. A closed loop sliding track is formed between outer walls of the position limiting block and inner walls of the recess. The resilient piece has a spring (2) and a resilient rod (3). The position limiting block has a first inclined surface (122) and a second inclined surface (123). End portions of the first and second inclined surfaces are at one side of the resilient rod; upper ends of the first and second inclined surfaces are at another opposite side of the resilient rod. A contact part (4) positioned within the sliding track is provided at an upper end portion of the resilient rod.