Dispensing head and dispenser
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Solution Overview
Problem
Existing dispensing heads for fluid dispensers are complex, costly, and inconvenient due to the need for tamper-evident seals that are unaesthetic, unhygienic, and require additional steps for removal, and the twist-to-lock mechanism occupies too much space and has high production costs.
Innovation Solution
A dispensing head with a movable actuator and a non-destructive display device that automatically moves to indicate first-time use, eliminating the need for separate tamper-evident seals, featuring a locking mechanism to prevent back movement and a compact design with a blocking device for actuator control, allowing for easy recognition of first-time use without damaging parts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If tamper-evident seals are used to indicate first-time use, then the indication function is achieved, but the design becomes unaesthetic, unhygienic, and requires additional removal steps
Solution Approach 1:
The patent extracts the indication function from separate tamper-evident seals and integrates it into the actuator mechanism itself. The actuator includes a display element that automatically changes position or appearance to indicate first-time use, eliminating the need for separate seals and their associated removal steps.
Solution Approach 2:
The patent combines the indication function with the actuator mechanism by integrating a display element directly into the actuator. This merging eliminates separate tamper-evident seals and integrates the indication function into the existing structure, improving aesthetics and hygiene while maintaining reliability.
2Reliability
If twist-to-lock mechanism is used to secure actuator, then the locking function is achieved, but the device occupies large space and has high production costs
Solution Approach 1:
The patent combines the locking function with the actuator mechanism itself. The actuator includes integrated locking elements that engage with the container opening, eliminating the need for separate twist-to-lock mechanisms and reducing the number of parts while maintaining secure locking.
Solution Approach 2:
The actuator is designed to perform multiple functions: it dispenses the product, indicates first-time use through a display element, and provides locking functionality through integrated locking elements. This multi-functionality eliminates the need for separate dedicated locking mechanisms.
3Reliability
If tamper-evident seals are used, then the indication function is achieved, but additional parts need to be disposed of separately
Solution Approach 1:
The patent merges the indication function into the actuator mechanism, which is already a necessary component for product dispensing. This integration eliminates separate tamper-evident seals and their associated assembly and disposal steps, simplifying both manufacturing and end-of-life processing.
4Ease of operation
If display device can move back to first position, then the actuator can be reset, but the indication of first-time use becomes unreliable
Solution Approach 1:
The patent implements a one-way movement mechanism for the display element that allows movement from the first position to the second position (indicating first-time use) but prevents return to the first position. This preliminary design decision ensures the indication remains reliable while still allowing the actuator to be reset for subsequent dispensing operations.
Data Source
Figure 1
Figure 2A~2B
Figure 3A~3B
AI summary
The invention relates to a dispensing head for a dispenser for dispensing a fluid, wherein the dispensing head comprises an actuator for actuating the dispensing head or dispenser and a fastening element for attaching the dispensing head to a container of the dispenser. According to one aspect, the dispensing head has an indicator device for signaling initial use. According to another aspect, the actuator is rotatable between a first rotational position and a second rotational position, and the dispensing head has a locking device for blocking actuation of the actuator in the first rotational position.