Scooter Locking Device for Telescopic Frame and Steering Shaft
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Solution Overview
Problem
Existing telescopically collapsible scooter designs are complex due to the need for independent locking devices for various components, making operation inconvenient and increasing manufacturing costs.
Innovation Solution
A locking device comprising a steering shaft locking unit and a front frame telescopically collapsed locking unit, where the steering shaft's pivot portion is coupled to the telescopic front frame, and the first and second positioning portions engage to secure the telescopic front frame when folded, simplifying the structure and reducing manufacturing complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If independent locking devices are provided for each structure (steering shaft, seat, etc.), then each component can be securely locked, but the device complexity increases and operation becomes inconvenient
Solution Approach 1:
The patent combines multiple locking functions into a single integrated locking device. The locking mechanism simultaneously locks the steering shaft and the telescopic front frame through a unified structure, eliminating the need for separate locking devices for each component. This merging approach maintains reliable locking while significantly reducing device complexity and improving operational convenience.
Solution Approach 2:
The locking device is designed with multi-functionality to perform multiple locking tasks. It can lock both the steering shaft in its folded position and the telescopic front frame in its collapsed position using the same mechanism. This universal design allows one device to serve multiple purposes, reducing the overall number of components while ensuring secure locking of all critical elements.
2Reliability
If multiple independent locking devices are installed, then each component is securely positioned, but manufacturing costs increase
Solution Approach 1:
By merging multiple locking functions into a single device, the patent reduces the total number of parts that need to be manufactured, assembled, and quality-tested. This consolidation lowers manufacturing costs while maintaining positioning reliability through the integrated design that simultaneously secures multiple components.
Solution Approach 2:
The universal locking device performs multiple positioning functions, reducing the bill of materials and assembly steps required for production. Manufacturers benefit from producing fewer unique components with standardized parts, leading to economies of scale and reduced manufacturing costs while achieving reliable positioning of all telescopic and foldable elements.
3Reliability
If a locking device is fixed on the outer tube support, then the telescopic state is positioned, but the structure becomes more complex and operation less convenient
Solution Approach 1:
The locking mechanism is integrated into the existing telescopic structure rather than being fixed separately on the outer tube support. By combining the locking function with the telescopic mechanism itself, the patent achieves reliable state positioning while maintaining ease of operation through a streamlined, unified interface that requires minimal user action.
Data Source
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AI summary
The present invention discloses a locking device for scooter when being telescopically collapsed to lock the steering shaft of the scooter when being folded and to lock a telescopic front frame when being telescopically collapsed. The locking device includes a steering shaft locking unit is coupled to a pivot seat of a telescopic front frame and a pivot portion of the steering shaft. The steering shaft locking unit is at least provided to hold the steering shaft in place when being in a horizontally folded mode. A front frame telescopically collapsed locking unit includes a first positioning portion disposed on a shank section of the steering shaft and a second positioning portion disposed on one of a rear frame and a foldable seat. The first positioning portion and the second positioning portion are engaged to each other for positioning the telescopically collapsed front frame when the steering shaft is in a horizontally folded mode.