Blade Dispenser Ejection Mechanism for Safe Handling
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Solution Overview
Problem
Conventional blade dispensers pose a risk of injury as users struggle to catch the blade with their finger or fingernail, and expose the sharp edge during dispensing, making the process difficult and unsafe.
Innovation Solution
A blade dispenser design featuring a housing, carrier, and blade eject assembly with a button that engages and moves the blade to a safe position for easy removal, incorporating a latch mechanism and a sled with a flexible member to facilitate blade ejection, ensuring the blade is exposed safely for retrieval.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional blade dispensers require users to catch a small protruding portion of the blade with their finger or fingernail, then the blade can be dispensed, but the user may be injured and find it difficult to catch the blade portion
Solution Approach 1:
The patent introduces a dispensing mechanism with a protruding dispensing surface that acts as an intermediary between the user and the blade. The user pushes the blade against this surface, and the blade is guided through a dispensing opening, eliminating the need for direct finger contact with the blade's protruding portion and reducing injury risk.
Solution Approach 2:
The blade dispenser separates the blade into distinct functional zones: a safe handling portion with a protective cap and a cutting edge portion. The dispensing mechanism is designed to expose only the necessary portion of the blade for removal while keeping the sharp edge protected until the moment of dispensing.
2Ease of operation
If conventional blade dispensers expose both a portion of the safe top edge and the sharp blade edge during the dispensing process, then the blade can be grasped, but the user's fingers are exposed to injury
Solution Approach 1:
The dispensing mechanism is designed to preliminarily position and guide the blade as it emerges from the dispenser. The blade is pushed against a protruding dispensing surface that guides it through a dispensing opening, ensuring that the blade is properly oriented and the safe portion is exposed first for grasping, before the sharp edge becomes accessible.
Solution Approach 2:
The protruding dispensing surface and dispensing opening act as intermediaries that control the blade's emergence path. This ensures that the blade is exposed in a controlled manner where the safe top edge with protective cap is accessible for grasping before the sharp cutting edge is exposed, reducing finger injury risk.
3Productivity
If conventional blade dispensers require users to catch a small protruding portion of the blade, then the blade can be removed, but many users find it difficult to catch the blade portion
Solution Approach 1:
The protruding dispensing surface serves as a mediator that amplifies the user's pushing action and provides a larger, easier-to-locate target area. Instead of requiring precise finger placement on a small protruding portion, the user simply pushes the blade against the more substantial dispensing surface, improving operational ease and efficiency.
Solution Approach 2:
The dispensing mechanism transforms the blade removal action from a precision finger-catching operation to a broader pushing motion against a protruding surface. This dimensional change in the interaction interface makes the operation more intuitive and easier to perform correctly on first attempt.
Data Source
AI summary
A blade dispenser is provided that includes a housing, a carrier, and a blade eject assembly. The housing defines a carrier cavity having an open end, and includes a blade loading mechanism. The carrier is operable to hold a plurality of blades. The carrier is selectively disposable within the carrier cavity of the housing. The blade eject assembly includes a button biased in a normal position relative to a base. The button is operable to be moved relative to the base and engage a blade disposed within the carrier, and to move the blade to a position where at least a part of the blade is disposed outside the housing.