Stroller Frame Motor Power Control via Pusher Adjustment
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Solution Overview
Problem
Existing motorized strollers lack user-friendliness and safety, requiring significant effort and being prone to malfunctions, necessitating a simpler, more robust design that allows easy operation and safe use.
Innovation Solution
A motorized stroller frame with an adjustment device that controls the motor's drive power by adjusting components such as the pusher position or angle, utilizing sliding contacts for electrical connections, and a coupling device to manage power supply, enabling easy operation and safe shutdown.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a motor is added to provide automated driving support, then the ease of operation is improved, but the device complexity increases
Solution Approach 1:
The patent combines the motor drive system with the existing adjustment device for the pusher component. The adjustment device serves dual purposes: adjusting the pusher position and controlling the motor power. This merging of functions reduces overall system complexity while maintaining ease of operation through a single integrated control mechanism.
Solution Approach 2:
The adjustment device is designed to perform multiple functions: it adjusts the pusher component position and simultaneously controls the motor drive power. This multi-functionality eliminates the need for separate control mechanisms, reducing device complexity while improving ease of operation through a unified control interface.
2Reliability
If an adjustment device is used to control motor power, then the safety is improved, but the device complexity increases
Solution Approach 1:
The control for motor power is merged into the existing adjustment device for the pusher component. This integration ensures that motor power control is directly linked to a mechanical adjustment action that is already familiar to users, improving safety through intuitive control while avoiding the addition of complex separate control systems.
Solution Approach 2:
The adjustment device automatically controls the motor power based on its own position or state. When the adjustment device is operated to change the pusher position, it self-regulates the motor power accordingly without requiring additional control inputs from the user. This self-service mechanism improves safety by eliminating manual intervention errors while keeping the system simple.
3Ease of operation
If sliding contacts are used for electrical connection, then the ease of operation is improved, but the reliability worsens
Solution Approach 1:
The patent extracts the critical electrical connection function from the sliding contact mechanism and places it in a separate, protected location. The sliding contact is used only for non-critical signaling or control functions, while the main power and critical control circuits use more reliable connection methods. This separation maintains ease of operation through the sliding contact interface while protecting reliability by isolating critical functions.
4Reliability
If the adjustment device controls motor power reduction, then the safety is improved, but the manufacturing precision requirements increase
Solution Approach 1:
The adjustment device controls motor power in discrete steps or broad ranges rather than requiring precise continuous control. This partial action approach provides sufficient safety by ensuring the motor can be reliably reduced to safe power levels without requiring high-precision manufacturing tolerances. The system accepts some imprecision in power control while maintaining adequate safety margins.
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 simplifies stroller operation, enhances safety by reducing motor power effortlessly, and prevents accidents through intuitive control of the motor's power, ensuring a user-friendly and robust stroller experience.
Implementation Method 1
at least one sliding contact between the adjustable component of the stroller frame and another component of the stroller frame, wherein an electrical contact is realized by the sliding contact
Data Source
AI summary
The invention relates to a stroller frame, comprising at least one motor, in particular an electric motor, for a supported drive of the stroller frame, at least one adjustment device for adjusting, in particular sliding and/or pivoting, at least one adjustable component of the stroller frame from a first position into at least one second position, and at least one coupling device, comprising at least one switching device, such that the potential drive output of the at least one motor is changed, in particular reduced, by at least one adjustment process using the adjustment device.