Drum Magazine Loading Mechanism Without Separate Loader
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Solution Overview
Problem
Conventional drum-type magazines for small firearms are cumbersome and time-consuming to load due to the need for individual manual insertion of bullets, often requiring a loader and additional lubrication with graphite.
Innovation Solution
A drum-type magazine design featuring a housing with paired bullet-moving members and an operation member that allows for easy and rapid insertion of bullets through a mechanism that rotates the bullet-moving members in a clockwise direction, creating space at the top of the insertion part for effortless loading.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If bullets are individually pushed into the insertion part of the drum-type magazine, then bullets can be loaded into the magazine, but the process becomes cumbersome and time-consuming
Solution Approach 1:
The magazine is pre-loaded with a large quantity of bullets during manufacturing, eliminating the need for end-users to perform time-consuming individual loading operations. The bullets are arranged in advance within the drum structure, ready for immediate use.
Solution Approach 2:
The magazine design allows bullets to be automatically fed into the chamber through the drum's rotational mechanism and bullet guide device, eliminating the need for users to manually push each bullet individually. The system serves itself by automatically advancing bullets during firing cycles.
2Productivity
If a loader is used to push bullets down to make space inside the insertion part, then bullets can be loaded more efficiently, but the user must always carry the loader and additional graphite for lubrication is required
Solution Approach 1:
The magazine incorporates an automatic bullet advancement mechanism that uses the firearm's own operational cycles to feed bullets into the chamber, eliminating the need for separate loader devices and lubrication materials. The drum rotates and the bullet guide device automatically positions and feeds bullets during normal firing operations.
Solution Approach 2:
The functions of bullet storage, bullet advancement, and chamber feeding are merged into a single integrated drum-type magazine system. This consolidation eliminates the need for separate loader devices and lubrication supplies that would otherwise be required.
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
Enables quick and convenient loading of a large number of bullets into the magazine, enhancing user convenience by simplifying the process without the need for a separate loader or additional lubrication.
Implementation Method 1
a pair of bullet-moving members, each of which is rotatably installed with elastic force on a rotational shaft formed at the center of the first storage space and the second storage space
Implementation Method 2
push one of operation protrusions annularly protruding at regular intervals around the rotational shaft on the front surface of the bullet-moving member depending on the descending of the lifting portion to rotate the bullet-moving member in the clockwise direction
Data Source
AI summary
The present invention relates to a drum-type magazine used in a small firearm. The drum-type magazine includes: a housing which includes a rear cover having an insertion space formed at the central portion, a pair of bullet guide parts formed below the insertion space, and a first storage space and a second storage space formed on both sides facing each other around the insertion space, and a front cover coupled in front of the rear cover; an insertion part inserted into the insertion space; a pair of bullet-moving members, each of which is rotatably installed with elastic force on a rotational shaft formed at the center of the first storage space and the second storage space and has seating grooves sequentially formed on the outer circumference thereof; and an operation member including a lifting portion having an operation lever, a long-hole bracket installed at a lower portion of the lifting portion, an operation rod of which one side is rotatably connected to the long-hole bracket and the other side is rotatably connected to the rotational shaft with elastic force to be rotated depending on the ascending of the lifting portion, and an operation portion installed inside an extended portion of the other side of the operation rod, rotatably installed at a predetermined angle with elastic force and pushing the an operation protrusion of the bullet-moving member to rotate the bullet-moving member in the clockwise direction.