Dispenser Cover Release Mechanism Outside the Sensor Zone
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Solution Overview
Problem
Existing wall-mounted dispensers with hands-free sensor activation face challenges in opening mechanisms, as the elongate bar used to disengage the latch is typically located at the dispensing zone, causing unintended dispensing when attempted to be manipulated.
Innovation Solution
A wall-mounted dispenser design featuring a pivotally secured cover with a latch and an elongate bar biased to rest near the latch, with yoke ends accessible to the left and right of the dispensing zone, allowing the cover to be opened without triggering the dispensing sensor, by pressing on either terminal end of the yoke.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the elongate bar is located at the dispensing zone to disengage the latch, then the cover can be opened, but the dispenser will dispense product when the user attempts to open it
Solution Approach 1:
The elongate bar is repositioned from the dispensing zone (center) to the sides of the dispenser, changing its spatial location from a central vertical position to lateral positions. This dimensional relocation allows users to operate the latch release without their hands entering the sensor detection zone, thereby preventing unintended product dispensing while maintaining cover opening functionality
2Loss of substance
If the elongate bar is positioned away from the dispensing zone to prevent sensor activation, then product wastage is avoided, but the mechanism complexity increases
Solution Approach 1:
The elongate bar is designed to serve multiple functions: it acts as both the user interface for opening the cover and as a structural component that transmits force to disengage the latch from the catch. The yoke configuration with terminal ends provides both operational accessibility and mechanical leverage, eliminating the need for separate components and reducing overall system complexity despite the repositioned configuration
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 the cover to be opened without activating the dispensing mechanism, allowing for refilling or maintenance without product wastage, while maintaining hands-free operation for dispensing.
Implementation Method 1
The elongate bar is biased so that the latch release end rests proximate the latch on the cover, and is biased in a direction away from the latch
Data Source
Figure 1~2
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Figure 5~6
AI summary
A dispenser (10) includes a cover (14) pivotally secured to a backplate (12) to move between an open position, at which the dispenser (10) can be refilled, and a closed position, at which the dispenser (10) may be actuated. The cover (14) includes a latch (20) that engages a catch (24) held on the backplate (12). An elongate bar (30) secured to the backplate (12) is provided to engage the latch (20) and remove it from the catch (24) to permit the cover (14) to be moved to the open position. The elongate bar (30) includes a yoke (44) extending to left and right terminal ends (40, 42) that are accessible outside of a dispensing zone of the dispenser (10). This invention is particularly applicable to dispensers that employ sensors to sense the presence of a hand at a dispensing zone.