Armrest mounting units, handcarts and seat components
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Solution Overview
Problem
Current handcarts, such as strollers or nursing carriers, require accurate positioning and significant force to mount and remove armrests, making the process inconvenient and time-consuming due to the locked force between the armrest body and the frame.
Innovation Solution
An armrest mounting unit with a magnetic mechanism that includes a first magnetic member and a locking mechanism, allowing for easy positioning and separation of the armrest body from the frame by switching between locked and unlocked states using magnetic attractive and repulsive forces, facilitating quick mounting and removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a locking mechanism is used to secure the armrest body to the frame, then the armrest can be firmly fixed, but additional force is required to overcome the locked force during removal
Solution Approach 1:
The patent replaces the traditional purely mechanical locking mechanism with a magnetic field-based locking mechanism. The magnetic locking mechanism uses magnetic attraction force to secure the armrest body to the frame, eliminating the need for mechanical interlocking components. This substitution allows for easy release by simply overcoming the magnetic force, which can be done by pulling the armrest body away, without requiring additional tools or complex unlocking actions.
Solution Approach 2:
The patent utilizes the property of magnetic force, which can be easily adjusted by changing the distance between magnetic components. When the armrest body is in the fixed position, the magnetic components are close together, providing strong locking force. When the armrest body is pulled away, the distance increases, and the magnetic force decreases, allowing for easy release. This parameter change (distance) enables both firm fixation and easy removal.
2Reliability
If accurate positioning is required to lock the armrest body, then secure mounting is achieved, but the mounting process becomes time-consuming and inconvenient
Solution Approach 1:
The patent replaces the traditional mechanical positioning and locking system with a magnetic field-based system. The magnetic locking mechanism automatically guides the armrest body into the correct position through magnetic attraction, eliminating the need for precise manual alignment. This substitution significantly reduces the time and effort required for mounting while ensuring secure fixation.
Solution Approach 2:
The magnetic locking mechanism provides self-aligning and self-locking functionality. When the armrest body is brought near the frame, the magnetic field automatically guides it into the correct position and secures it without requiring manual intervention for positioning or alignment. This self-service characteristic reduces both mounting time and operational complexity.
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
Enables convenient and efficient mounting and removal of the armrest body from the frame without overcoming additional locked force, improving user experience by simplifying the process.
Implementation Method 1
the first magnetic member forms a magnetic action with the locking mechanism, to assist positioning and separation of the fixed base and the connecting base
Implementation Method 2
under the action of the magnetic force (including attractive force and/or repulsive force) formed between the first magnetic member and the locking mechanism
Implementation Method 3
under the action of the magnetic force (including attractive force and/or repulsive force) formed between the first magnetic member and the locking mechanism
Data Source
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AI summary
The present application discloses an armrest mounting unit (300) and a handcart. The armrest mounting unit (300) includes: a fixed base (310); a connecting base (320); a first magnetic member (330) fixed on one of the fixed base (310) and the connecting base (320); and a locking mechanism (340) disposed on the other one of the fixed base (310) and the connecting base (320). When the locking mechanism (340) is in a locked state, the connecting base (320) is fixable on the fixed base (310) through the locking mechanism (340). When the locking mechanism (340) is in an unlocked state, the connecting base (320) is separable from the fixed base (310). The first magnetic member (330) forms a magnetic action with the locking mechanism (340), to assist positioning and separation of the fixed base (310) and the connecting base (320).