Dispensing Device Discharge Opening Geometry and Ergonomic Handle
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Solution Overview
Problem
Existing dispensing devices allow water ingress, especially when held under a water jet, and have a design that increases the operational difficulty due to the distance the user must bridge between the retaining section and the actuating head.
Innovation Solution
The dispensing device features discharge openings limited to a section of at most 180 degrees of the periphery, positioned under or on the side of the actuating head, with a protruding wall to prevent water ingress and a vertically extending retaining handle for improved ergonomics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-generated harmful factors
If discharge openings are provided in the bottom of the space to discharge water, then water can be discharged from the space, but water can easily enter the dispensing device through the discharge openings when held under a water jet for cleaning
Solution Approach 1:
The discharge opening is positioned at a specific location on the periphery of the dispensing device (at most 180 degrees, preferably at most 90 degrees of the periphery) rather than being distributed around the entire circumference. This localized positioning allows water to be discharged from the space while reducing the risk of water ingress during cleaning operations, as the limited angular coverage minimizes exposure to water jets.
2Object-affected harmful factors
If a protective outer wall is provided to protect against water ingress, then protection against water is improved, but the distance which has to be bridged by the hand of the user during operation is increased
Solution Approach 1:
The protective outer wall is designed with a specific geometric configuration where it extends only partially around the periphery (at most 180 degrees, preferably at most 90 degrees) rather than forming a complete enclosure. This segmented approach provides adequate water protection while minimizing the distance the user must bridge during operation, as the reduced angular coverage decreases the radial distance from the retaining section to the actuating head.
Data Source
AI summary
The invention relates to a dispensing device for dispensing a liquid, in particular in the form of a foam, at least comprising a liquid container and a dispensing assembly, the dispensing assembly comprising a liquid pump (4) and an actuating head (10). The actuating head comprises a discharge duct (12) and a dispensing opening for dispensing the liquid, and a circular protective cap (14), which protective cap can be guided into a space which is formed between a protective inner wall (29)and a protective outer wall (30) the dispensing assembly. One or more discharge openings (31) are provided near the bottom of the space which discharge to the outside. According to a first aspect of the invention, the one or more discharge openings discharge over a section (30A) of at most 180 degrees, preferably at most 90 degrees, of the periphery of the dispensing device. According to a second aspect of the invention, a retaining handle is formed by a retaining section of the protective outer wall (30) the dispensing device, which section is substantially vertical and/or tapers outwards in the direction remote from the liquid container.