Remote Paint Sprayer with Barrel and Control Unit
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Solution Overview
Problem
Conventional paint sprayers require the use of ladders or scaffolding to reach high surfaces, leading to physical strain and limited ergonomic operation, especially when spraying walls and ceilings.
Innovation Solution
A paint sprayer design featuring a control unit with a guide for the paint line and a barrel connecting it to the spray head, allowing for remote control of the spray head and reducing the need for a paint tank, enabling two-handed operation and increased range without the use of ladders, with options for pneumatic, electrical, or mechanical control signals and adjustable air flow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If a conventional paint sprayer design is used with a paint tank on the spray head, then the device is compact and easy to handle, but the user experiences physical strain and limited range when spraying high surfaces
Solution Approach 1:
The paint sprayer is divided into separate functional components: the spray head without a paint tank, a remote paint supply unit, and a connecting hose system. This segmentation allows the paint supply to be positioned away from the spray head, extending the user's effective range while maintaining ergonomic operation through separate hand placement on the spray head and hose.
Solution Approach 2:
A hose serves as an intermediary element connecting the paint supply unit to the spray head, enabling remote paint delivery without requiring the user to carry or support a paint tank at the spray head. This intermediary allows the user to operate from a comfortable position while maintaining control over the spray application.
2Length of moving object
If a barrel is added between the control unit and spray head to extend range, then the user can reach high surfaces without ladders, but the device becomes heavier and more complex
Solution Approach 1:
The paint tank is extracted from the spray head and relocated to a separate supply unit. This extraction eliminates the need for a heavy paint tank at the spray head, reducing the weight that the user must support during operation while still enabling extended range through the connecting hose system.
Solution Approach 2:
The functionality of remote paint delivery is achieved by creating a separate paint supply unit that mirrors the essential function of a traditional tank, connected via hose. This allows the system to achieve extended range without the weight penalty of integrating a large tank into the spray head assembly.
3Ease of operation
If remote control of the spray head is implemented, then the user can operate from a distance, but the control system becomes more complex
Solution Approach 1:
Traditional mechanical control linkages are replaced with a simplified trigger mechanism that controls paint flow and air supply through fluid dynamics rather than direct mechanical connection. This substitution reduces control system complexity while maintaining remote operability, as the trigger controls valve actuation and air pressure regulation without requiring complex mechanical transmissions.
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
This design reduces physical strain, allows for ergonomic and controlled spraying without ladders, and provides cost-effective and visually checkable control over longer distances, while maintaining ease of use and flexibility in spray jet adjustment.
Implementation Method 1
an air flow through the barrel from the control unit to the spray head is conducted
Implementation Method 2
the spray head is supplied with paint through the paint line
Data Source
Figure 1
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Figure 3
AI summary
The invention relates to a paint spraying device (1) comprising an operator unit (2) that is arranged at a first end (A) of the paint spraying device (1), and a spray head (3) that is arranged at a second end (B) of the paint spraying device (1). The operator unit (2) includes an air connection (5) for an air duct (6), a guide (7) for a paint duct, (8) via which paint (9) is supplied to the spray head (3), a signal transducer (S) for generating a control signal (CS), and a control connection for a control line. A barrel (4), through which an air stream (11) is conducted from the operator unit (2) to the spray head (3), is arranged between the operator unit (2) and the spray head (3).