Pendulum Gardening Tricycle for Slope-Adaptive Cutting
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Solution Overview
Problem
Existing gardening tricycles are potentially uncomfortable and risky to use on uneven terrain, limited in functionality, and cannot safely maneuver on slopes.
Innovation Solution
A gardening tricycle with a pendulum rear axle and a gardening tool mounted on a pendulum running gear, where the tool's orientation adapts to terrain changes, coupled to pedals via transmission means that adjust cutting element frequency and wheel rotation, and a chassis that deforms to accommodate slopes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the rear running gear is made pendular to adapt to uneven terrain, then the stability and comfort on slopes are improved, but the device complexity increases
Solution Approach 1:
The rear running gear is designed as a pendular mechanism that can dynamically rotate around a transverse axis to adapt to slope angles. This dynamic adjustment allows the tricycle to maintain stability on uneven terrain while the gardening tool automatically orients itself perpendicular to the ground surface through the pendulum's natural alignment.
Solution Approach 2:
The patent combines multiple functions into the pendular running gear: it serves as both the support structure for the gardening tool and the adaptation mechanism for uneven terrain. The tool is directly mounted on the pendular assembly, so that the same structural element that provides stability also ensures proper tool orientation.
2Adaptability or versatility
If the gardening tool is mounted on the pendulum running gear with mobility dependent on rotation degree, then the adaptability to different terrains is improved, but the device complexity increases
Solution Approach 1:
The pendular running gear serves multiple purposes: it supports the gardening tool, adapts to various slope angles, and automatically orients the cutting elements perpendicular to the ground. This single mechanism replaces what would otherwise require separate adjustment systems for each function.
Solution Approach 2:
The pendular mechanism automatically orients the gardening tool perpendicular to the ground surface through its natural pendulum motion and gravitational alignment. The system self-adjusts to terrain changes without requiring external sensors, motors, or complex control systems.
3Productivity
If transmission means with gear set are used to increase cutting element frequency and decrease wheel rotation frequency, then the productivity is improved, but the device complexity increases
Solution Approach 1:
The transmission system merges the drive functions for both the cutting elements and the wheels into a single gear-based mechanism. The differential gear arrangement simultaneously achieves speed multiplication for the cutting elements and speed reduction for the wheels, consolidating multiple transmission functions into one integrated system.
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 tricycle provides safer and more comfortable operation on uneven terrain, allowing diverse uses such as mowing and hedge trimming, with the tool maintaining optimal cutting angle regardless of slope changes.
Implementation Method 1
the rear running gear is pendular, the axle being mounted for rotation on the chassis along an axis of rotation extending transversely to the main axis and in a general direction of forward advancement of the tricycle
Implementation Method 2
The transmission means incorporate a set of gears configured to increase the actuation frequency of the cutting elements relative to the rotation speed of the pedal assembly
Implementation Method 3
means for generating motor torque comprising a crankset
Data Source
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AI summary
The invention relates to a gardening tricycle vehicle (100) comprising: - means for generating motor torque (500) including a pedal assembly (510); - a chassis (200) on which the pedal assembly (510) and a saddle (110) are mounted; - a rear running gear (300), the running gear (300) comprising: - an axle (310) extending along a main axis (A); - two wheels (320) each mounted at one end of the axle (310), in which the tricycle (100) also includes a gardening tool (900) designed for cutting plants.