Rodent Trap with Pivoting Bait Platform and Transparent Housing

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Solution Overview

Problem

Existing rodent traps are inefficient due to complex mechanisms, pose safety risks, and are difficult to arm and clean, with animals often avoiding capture and traps being tricky to handle hygienically.

Innovation Solution

A trap design featuring a tunnel body with a pivoting platform for bait placement, an elastic return device with a radial and tangential component, and a cocking stop to simplify arming, combined with a transparent body for easy detection of trapped animals and a separable front section for cleaning, reducing the number of parts and assembly complexity.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If a traditional swatter trap with a long stirrup path is used, then the mechanism is simple, but the mouse can avoid the stirrup during its 180° rotation

Engineering Contradiction:
Improvemechanism simplicityVSAvoidcapture reliability
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The patent guides the mouse through a tunnel body, constraining its movement to a specific path. This dimensional constraint ensures the mouse cannot avoid the stirrup by approaching from other directions, resolving the contradiction between simple mechanism and reliable capture.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Reliability

If the stirrup path is shortened to 90° rotation, then capture reliability improves, but the triggering mechanism becomes more complex

Engineering Contradiction:
Improvecapture reliabilityVSAvoidtriggering mechanism complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent merges the tunnel body with the triggering mechanism by incorporating the platform and bait holder directly into the tunnel structure. This integration reduces overall device complexity while maintaining the effective 90° stirrup rotation for reliable capture.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The tunnel body serves multiple functions: it guides the mouse, houses the triggering mechanism, and provides structural support for the stirrup. This multi-functionality reduces the need for separate components, simplifying the overall device while ensuring reliable capture.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Ease of operation

If the bait holder is accessible from all sides, then the mouse can approach the bait easily, but the mouse can also avoid the stirrup when falling back

Engineering Contradiction:
Improvebait accessibilityVSAvoidcapture reliability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent provides selective accessibility: the bait holder is accessible from the tunnel entrance where the mouse approaches, but the stirrup is positioned to strike from above. This localized arrangement ensures the mouse can reach the bait while being vulnerable to the stirrup, resolving the contradiction between bait accessibility and capture reliability.

Inventive Principle:
Principle #3Local quality

4Ease of operation

If the trap mechanism is completely accessible, then arming is straightforward, but it poses safety risks to children and pets

Engineering Contradiction:
Improvearming easeVSAvoidsafety risk
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The patent segments the trap into an enclosed tunnel body containing the mechanism and an external bait loading system. This segmentation allows the mechanism to remain protected within the tunnel while maintaining arming functionality through the hatch, reducing safety risks to children and pets.

Inventive Principle:
Principle #1Segmentation

5Ease of manufacture

If the trap body is opaque, then manufacturing is simpler, but detection of trapped animals is delayed

Engineering Contradiction:
Improvemanufacturing simplicityVSAvoidtrapped animal detection
Core Design Contradiction:
Ease of manufactureVSDifficulty of detecting and measuring

Solution Approach 1:

The patent uses transparent or translucent material for the tunnel body, allowing visual detection of trapped animals. This material property change enables easy monitoring of trap status while maintaining manufacturing simplicity, resolving the contradiction between manufacturing ease and detection capability.

Inventive Principle:
Principle #32Color changes

6Object-affected harmful factors

If the hatch is small for hygiene, then dirt containment is better, but manual access to the bait holder is difficult

Engineering Contradiction:
Improvedirt containmentVSAvoidbait loading ease
Core Design Contradiction:
Object-affected harmful factorsVSEase of operation

Solution Approach 1:

The patent makes the hatch dynamically openable for bait loading and closing for hygiene. This dynamic configuration allows the hatch to serve dual purposes: providing adequate access for bait placement while maintaining dirt containment during operation, resolving the contradiction between hygiene and ease of operation.

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 trap is easy to arm and clean, provides secure and hygienic handling, ensures quick detection of trapped animals, and contains dirt effectively, while being cost-effective and simple to manufacture.

Implementation Method 1

a return device in elastic deformation for the stirrup in the position taken by said elastic return device

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentEP3068218B1Trap for animal pests, in particular rats and mice
Publication Date: 2017.12.27 LIPHATECH
  • EP3068218B1 patent drawingFigure 1
  • EP3068218B1 patent drawingFigure 2~3
  • EP3068218B1 patent drawingFigure 4

AI summary

The invention relates to a trap (1) for animal pests, comprising: • a body (2) forming a tunnel, • a stirrup (4) having a striking bar (41) that is able to rotate about an axis between an armed position and an engaged position, • a spring (3) for returning the stirrup into the engaged position, • a trigger (5) for triggering the return of the stirrup from the armed position to the engaged position by the spring, characterized in that • the trigger (5) has a pivoting platform (54) comprising a bait holder (51) designed to allow solid bait to be fixed beneath the platform, • the body (2) of the trap has a flap (27) provided in the lower face of the body opposite the bait holder (51), said flap having an opening with a size suitable to allow manual access to the bait holder (51) and to allow the bait to be fixed to the bait holder.