Rotatable Magazine Loader for Handheld Crimpers
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Solution Overview
Problem
Current handheld contact crimpers fail to maximize speed, accuracy, reliability, and versatility for crimping contacts in mission-critical equipment, such as rockets and military gear, and lack an efficient and convenient magazine loader system.
Innovation Solution
A rotatable, cylindrical magazine loader with axially oriented channels and a trigger assembly that aligns channels with the crimping section, utilizing a detent groove and ball spring plungers for engagement, along with a shuttle assembly for automatic insertion of preloaded contacts, ensuring precise alignment and easy reloading.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a magazine loader system is added to handheld crimpers, then productivity and speed are improved, but device complexity increases
Solution Approach 1:
The magazine loader is divided into separate functional modules: a rotatable magazine containing multiple channels for contacts, a trigger assembly for rotation control, and a shuttle assembly for contact insertion. This segmentation allows each component to perform its specific function efficiently while maintaining overall system productivity.
Solution Approach 2:
Electrical contacts are preloaded into the magazine channels before use. The magazine can be prepared in advance with multiple contacts positioned in each channel, allowing the crimping operation to proceed rapidly without repeated loading interruptions, thus improving productivity.
2Manufacturing precision
If automatic contact insertion is implemented, then manufacturing precision is improved, but ease of operation deteriorates
Solution Approach 1:
The shuttle assembly automatically performs the insertion of contacts from the magazine channels into the crimping position when the trigger is activated. This self-service mechanism ensures precise alignment through the fixed geometric relationship between the magazine channels and crimping section, while the user only needs to pull the trigger, maintaining ease of operation.
Solution Approach 2:
The magazine channels act as an intermediary structure that pre-position contacts with high precision before transfer to the crimping section. The channels provide a fixed geometric path that ensures accurate alignment, while the shuttle mechanism mediates the transfer process automatically.
3Adaptability or versatility
If multiple channels are added to the magazine, then versatility is improved, but device complexity increases
Solution Approach 1:
The rotatable magazine with multiple channels serves multiple functions: it can hold and present multiple contacts simultaneously, allow selection of different contacts by rotation, and provide repeated use without reloading. This multi-functionality increases versatility while the modular design keeps complexity manageable.
Solution Approach 2:
The magazine is designed to rotate about its axis, allowing dynamic selection of different channels and contacts. This rotational capability provides versatility in contact selection and arrangement while maintaining a relatively simple cylindrical structure that does not significantly increase device complexity.
4Reliability
If detent engagement mechanism is used, then reliability is improved, but device complexity increases
Solution Approach 1:
The detent engagement mechanism provides tactile and positional feedback to confirm proper engagement between the magazine and base plate. This feedback mechanism ensures reliable positioning and engagement without requiring complex electronic or sensing systems, maintaining simplicity while improving reliability.
Solution Approach 2:
The detent mechanism is extracted as a separate, simple mechanical component that provides reliable engagement through geometric interlocking. By isolating this function into a dedicated mechanism rather than integrating it complexly into the overall structure, reliability is improved while added complexity is minimized.
Data Source
AI summary
A contact magazine loader for guiding the insertion of individual electrical contacts into a crimping section of a crimping tool. A magazine is adapted to be placed in removable and rotatable engagement with a hand-held crimping tool. The magazine is approximately cylindrical, has a plurality of channels evenly dispersed around the radial periphery of the magazine, and is preloadable with electrical contacts. Each preloaded electrical contact is positioned within an individual insert casing. Each insert casing is adapted to being linearly slideably received into one of the channels. As a shuttle assembly is moved into compressed configuration, an insert casing guides the preloaded electrical contact into the crimping section of the hand-held crimper. A trigger assembly allows a user, with a single movement, to cause the shuttle assembly to return to its released configuration, and to rotate the magazine to axially align a subsequent casing with the crimping section of the hand held crimper.