Wheel Set Brake Mechanism for Single-Action Rear Wheel Locking
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Solution Overview
Problem
Existing baby transports face challenges with complex brake mechanisms for individual rear wheels, requiring separate operation, and rear wheels that rotate easily during normal forward movement, making it difficult to move forward smoothly.
Innovation Solution
A wheel set brake mechanism with a drive member, brake assembly, and locking member, allowing simultaneous locking/unlocking of both rear wheels through a single operation, and a wheel orienting mechanism to control wheel rotation, using a drive pin, traction members, and elastic reset members for simplified operation and enhanced stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If brake mechanisms for individual rear wheels are disconnected from each other, then each wheel can be locked independently, but the brake operation becomes more complicated
Solution Approach 1:
The patent combines two disconnected brake mechanisms into a unified system by introducing a common drive member that simultaneously controls both rear wheels. The drive member rotates to drive both locking members through elastic members, allowing simultaneous operation while maintaining independent wheel locking capability through the elastic reset mechanism.
2Ease of operation
If brake mechanisms for individual rear wheels share a same drive member, then brake operation is simplified, but the structure becomes more complex
Solution Approach 1:
The patent segments the brake mechanism into modular components: a common drive member for operation, individual drive pins for each wheel, elastic reset members for automatic return, and locking members for wheel engagement. This segmentation allows simplified operation through the single drive member while managing structural complexity through standardized modular units.
Solution Approach 2:
The elastic reset members provide self-service functionality by automatically returning the locking members to the unlocked position when the drive member rotates back. This eliminates the need for additional reset mechanisms or manual intervention, simplifying operation while maintaining a manageable structure through passive elastic recovery.
3Adaptability or versatility
If the rear wheel is a universal wheel to enable smooth turning, then the baby transport can turn smoothly, but the wheel rotates easily during normal forward movement
Solution Approach 1:
The patent applies dynamics by making the wheel orientation adjustable through the orienting mechanism. The wheel can dynamically switch between two states: locked in the rolling direction for stable forward movement, or unlocked to rotate freely for smooth turning. This dynamic adaptability resolves the contradiction between turning smoothness and forward movement stability.
Data Source
AI summary
A wheel set brake mechanism includes a drive member mounted on the movable frame; and a brake assembly including a drive pin, a traction member and a locking member. The drive pin is operably connected to the drive member. The traction member includes a first cable and a second cable, a first end of the first cable is connected to the drive pin, a second end of the first cable extends into an inner cavity of the hollow shaft to be rotatably connected to a first end of the second cable, and a second end of the second cable is connected to the locking member. The drive member is configured to drive the drive pin to slide so that the traction member causes the locking member to slide to lock the wheel.