Powder Coating Gun Trigger Locking Mechanism

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Solution Overview

Problem

Existing powder coating guns suffer from trigger mechanisms that are limited by external limiters or articulated designs, restricting linear movement and ease of disassembly, which hampers efficient operation and maintenance.

Innovation Solution

A coating gun with a grip limiter and a locking mechanism on the trigger channel, featuring a trigger element, elastic element, and lock channel that allows for easy installation and disassembly, enabling controlled operation and maintenance by locking the trigger within the gun body.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If an external limiter is used to lock the trigger, then the trigger can be locked, but the trigger mechanism becomes complex and difficult to disassemble

Engineering Contradiction:
Improvetrigger lockingVSAvoidtrigger mechanism structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The locking mechanism is merged with the trigger channel itself. The trigger channel is designed with a locking groove that directly engages with a locking protrusion on the grip, eliminating the need for separate external limiters. This integration simplifies the overall structure while maintaining reliable trigger locking functionality.

Inventive Principle:
Principle #5Merging (Combining)

2Ease of operation

If an articulated trigger design is used, then the trigger can move, but it cannot make linear movement back and forth

Engineering Contradiction:
Improvetrigger movementVSAvoidmovement type
Core Design Contradiction:
Ease of operationVSAdaptability or versatility

Solution Approach 1:

The trigger is designed as a dynamic component that can move linearly back and forth along the trigger channel. The elastic element provides dynamic locking and unlocking functionality, allowing the trigger to move freely during operation while maintaining stability when locked in position. This dynamic design enables both movement capability and linear trajectory.

Inventive Principle:
Principle #15Dynamics

3Reliability

If the trigger is locked during operation, then the electrostatic loading process stops, but the trigger cannot return to initial position

Engineering Contradiction:
Improveelectrostatic loading controlVSAvoidtrigger reset
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The locking mechanism is designed to be dynamic rather than static. The elastic element allows the trigger to be locked in the activated position to stop electrostatic loading, but can be easily released to return to the initial position. The locking groove and protrusion design provides stable locking during operation while allowing smooth reset when needed.

Inventive Principle:
Principle #15Dynamics

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 solution provides a reliable and user-friendly trigger mechanism that ensures smooth operation and maintenance by allowing the trigger to return to its initial position, stopping the electrostatic loading process, and facilitating easy assembly and disassembly.

Implementation Method 1

an elastic element that compresses when the trigger element is pressed, extends when released and thus allows the passage of the coating material or closes the passage

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 2

the powder paint leaves the gun, it is electrostatically charged negatively by a high-voltage electrode at the tip of the gun. Since the part to be painted is grounded, the electrostatically charged paint easily adheres to the part

Methodology Applied
Scientific EffectElectrostatic charge: Electrostatics

Data Source

PatentUS20250091063A1Powder coating gun including trigger mechanism lockable with grip
Publication Date: 2025.03.20 SISTEM TEKNIK MAKINA SANAYI VE TICARET ANONIM SIRKETI
  • US20250091063A1 patent drawing
  • US20250091063A1 patent drawing
  • US20250091063A1 patent drawing

AI summary

The invention is related to a body (10) used for powder coating of workpieces, grip (20) that fits into the body (10) and allows manual gripping during the painting process, trigger element (31) to which the first pressure is applied for triggering, which is squeezed when the trigger element (31) is pressed, the coating gun (1) comprising an elastic element (32) which elongates when released, thereby allowing or blocking the passage of the coating material, a trigger mechanism (30) comprising a lock channel (33) for locking the grip (20) to the body (10), and an extractor (21) which engages the lock channel (33) and thereby allows the grip (20) to engage with the body (10).