Pen-like Dosing Dispenser with Axial Push Button Actuation
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Solution Overview
Problem
Existing dosing dispensers face challenges in reconciling simplicity of structure, ease of manufacture, optical design, and optimal handling, particularly in the cosmetics sector, with complex constructions and numerous components leading to cumbersome operation and potential accidental material discharge.
Innovation Solution
A dosing dispenser design featuring an elongated pen-like housing with a cartridge that can be displaced axially, a pump unit, and an actuating push button, where the push button is axially displaceable to activate the pump unit, ensuring easy operation and precise dosing without manual movement of the dispenser, with a self-closing inlet and outlet valve system for controlled material discharge.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a complex construction with multiple components is used to achieve precise dosing and controlled material discharge, then dosing precision is improved, but device complexity increases and ease of operation deteriorates
Solution Approach 1:
The patent combines the pump unit, cartridge, and actuating mechanism into an integrated assembly where the piston is directly connected to the push button. This merging of components simplifies the overall construction while maintaining dosing precision through the direct mechanical linkage that translates button pressure into controlled material discharge.
Solution Approach 2:
The push button serves multiple functions: it acts as the actuating mechanism for the piston, provides structural support for the pump unit, and enables both dosing and dispensing operations. This multi-functionality reduces the number of separate components needed while preserving precise dosing capabilities.
2Device complexity
If manual pressing of push button or adjusting knob is used for dosing, then device complexity is reduced, but ease of operation deteriorates due to cumbersome handling
Solution Approach 1:
The patent merges the dosing and dispensing functions into a single integrated operation. The push button simultaneously controls the piston movement for dosing and triggers the valve mechanism for dispensing, eliminating the need for separate manual operations and improving handling convenience while maintaining structural simplicity.
3Adaptability or versatility
If numerous individual components are used in housing assembly, then adaptability is improved, but ease of manufacture deteriorates due to complex assembly and production
Solution Approach 1:
The patent segments the dispenser into modular components (pump unit, cartridge, housing) that can be manufactured separately and assembled through simple snap-fit connections. This segmentation maintains functional flexibility while dramatically simplifying manufacturing and assembly processes, allowing each module to be produced independently and tested before final assembly.
4Device complexity
If functional testing is performed only after final assembly, then device complexity is reduced, but reliability deteriorates due to inability to detect defects early
Solution Approach 1:
The patent enables preliminary functional testing of the pump unit and cartridge assembly before final integration into the complete dispenser. This preliminary testing capability allows defects to be detected and corrected early in the manufacturing process, improving product reliability while maintaining a relatively simple testing procedure that can be performed on modular sub-assemblies.
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
The design facilitates easy operation, precise dosing, and prevents accidental material discharge, while simplifying assembly and production by reducing the number of components and allowing functional testing before final assembly, thus enhancing usability and reliability.
Implementation Method 1
a compression spring, which braced at its lower end on the lower end of the hollow piston and at its upper end on an upper closing base of the pump housing
Implementation Method 2
an inlet valve, in particular a collar made of rubber-elastic and/or flexible material, which closes an inlet opening of the pump housing and an outlet valve, which closes an outlet opening of the pump housing
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
The invention relates to a metering dispenser for discharging pasty or viscous material, comprising a dispenser housing (1), a cartridge (4) accommodated therein, an applicator (6) and a pump unit (7). The metering dispenser according to the invention is provided with an actuating device which is formed by a push button (3), and wherein the pump unit is activated by pushing said push button into the housing in order to discharge the material.