Air Gun Trigger Mechanism for Extended Cartridge Range
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Solution Overview
Problem
Conventional toy gun cartridges with limited operating range due to short nail actuation mechanism struggle to move rotary clips effectively, especially when the cartridge length exceeds 2 mm, and the fixed fulcrum length in existing designs restricts the operating range, making it difficult to load bullets efficiently.
Innovation Solution
The design incorporates a nail arm rotating shaft positioned opposite to the trigger rotating shaft, with a guide and link mechanism that allows the nail to move downward and engage with the cartridge loading portions, increasing the operating range by lengthening the distance between the trigger and the nail arm, and utilizing a cover that slides to abut and move the cartridge, enhancing the range and energy efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If the nail is directly coupled to an arm provided in proximity to the trigger between the trigger and the rotary clip, then the structure is simple, but the operable range of the nail is short and it is difficult to move the rotary clip when the operating range exceeds 2 mm
Solution Approach 1:
The patent extends the nail's operable range by positioning it at the tip of the trigger arm rather than coupling it directly near the trigger pivot. This spatial reconfiguration in another dimension (distance from pivot) allows the nail to traverse a longer path (up to 8 mm) while maintaining a simple lever-based structure without adding complex mechanisms.
2Productivity
If an endless cartridge is used where multiple cylindrical loading portions are continuously coupled together, then the cartridge can be continuously fed, but it constitutes a ring without an end making it difficult to move with the limited nail operating range
Solution Approach 1:
By positioning the nail at the extended tip of the trigger arm, the patent creates sufficient operable range to engage and move the endless cartridge ring structure. The increased lever arm length allows the nail to traverse the circular path of the endless cartridge, enabling continuous feeding while maintaining ease of operation.
3Length of moving object
If the leg is rotated around a pin penetrating an opening in the conventional design, then the fulcrum length is fixed, but this limits the operating range of the cartridge
Solution Approach 1:
The patent makes the fulcrum length dynamic by allowing the trigger arm to rotate around the trigger pivot, creating a variable lever arm. As the trigger is pulled, the arm rotates and the effective fulcrum length changes, enabling the system to adapt to different cartridge lengths and operating ranges rather than being constrained by a fixed fulcrum.
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
This configuration significantly increases the operating range of the cartridge with each trigger pull, allowing for longer cartridges to be loaded efficiently and preventing gas leakage by closing the gap between the cartridge and inner barrel, thus improving energy efficiency.
Implementation Method 1
a nail arm rotating shaft placed on the side opposite to the cartridge with the trigger rotating shaft in between; a nail arm rotated around the nail arm rotating shaft
Implementation Method 2
a nail arm rotated around the nail arm rotating shaft; a guide as a long hole provided in the nail arm in a direction along the inner barrel as a whole and guiding the terminal
Implementation Method 3
a cover which is provided at the end of the inner barrel on the cartridge side, can be abutted against the cartridge loading portion, and can be slid to the cartridge side and the side opposite to the cartridge; and a link which slides the cover to the cartridge side and the side opposite to the cartridge by bringing the terminal into and out of abutment
Implementation Method 4
a cover which is provided at the end of the inner barrel on the cartridge side, can be abutted against the cartridge loading portion
Data Source
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AI summary
The purpose of the present invention is to increase the operating range of a cartridge which is actuated each time a trigger is once pulled is order to reduce energy loss. A toy gun includes: a nail arm which is rotated around a nail arm rotating shaft placed in a position opposite to the cartridge with a trigger rotating shaft in between and is substantially in an L shape; a guide as a long hole which is provided in the nail arm and guides a terminal; a nail which is attached to a tip of the nail arm and can be engaged with a cartridge loading portion; and a link which is attached to a cover capable of being abutted against a cartridge loading portion and slides the cover to the cartridge side or the side opposite to the cartridge by bringing the terminal into or out of abutment.