Travel Bed Folding Mechanism with Linked Locking Devices
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Solution Overview
Problem
Existing foldable travel beds have complex and inconvenient locking mechanisms that complicate the folding and unfolding process, making them difficult for users to operate effectively.
Innovation Solution
A travel bed design featuring a system of interconnected rods and frames with a hauling rope mechanism, where unlocking one locking device simultaneously unlocks the other, allowing the bed to fold and unfold quickly and easily, utilizing a four-bar linkage mechanism and elastic components for efficient folding and unfolding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate locking mechanisms are provided for the bottom support and surrounding frame, then the bedstead can be securely locked at unfolded position, but the structure becomes complicated and operation becomes inconvenient
Solution Approach 1:
The patent combines multiple locking mechanisms into a single integrated locking device. The locking device includes a locking block that can simultaneously lock both the bottom support and the surrounding frame through a unified structure, eliminating the need for separate locking mechanisms and simplifying the overall design while maintaining secure locking at unfolded positions
Solution Approach 2:
The locking device is designed with multi-functionality to perform multiple locking operations. The locking block can engage with both the bottom support and the surrounding frame simultaneously, allowing a single device to fulfill the locking requirements of multiple components, thereby reducing structural complexity and improving ease of operation
2Reliability
If separate locking mechanisms are provided for the bottom support and surrounding frame, then each component can be independently locked, but user operation becomes very inconvenient
Solution Approach 1:
The patent merges multiple locking operations into a single user action. The locking device is operated through one unified mechanism that simultaneously locks or unlocks both the bottom support and the surrounding frame, transforming what would require multiple separate operations into a single convenient action for the user
Solution Approach 2:
The locking device is designed with multi-functionality to handle both locking operations through a single interface. The locking block can engage with multiple components simultaneously, allowing users to secure the entire bedstead structure with one operation rather than needing to manipulate separate locking mechanisms for each component
3Reliability
If the locking mechanism is located at the center of the bottom support and on the surrounding rod, then the bedstead can be locked at unfolded position, but the structure becomes complicated
Solution Approach 1:
The patent consolidates locking mechanisms located at different positions (center of bottom support and surrounding rod) into a single integrated locking device. The locking block is positioned to simultaneously engage with both the bottom support and the surrounding frame, reducing the number of separate locking components and simplifying the overall structure while maintaining reliable locking at unfolded positions
Data Source
AI summary
Disclosed is a travel bed comprising a bottom support, a upper surrounding frame, stand rods and fixing bases. The upper surrounding frame comprises a first surrounding rod and a second surrounding rod which are rotatably connected with a first connector. The first surrounding rod comprises a first connecting rod and a second connecting rod which are connected with a second connector, and the second surrounding rod comprises a third connecting rod and a fourth connecting rod which are connected with a third connector. The upper surrounding frame further comprises a first locking device for locking the first connecting rod and the second connecting rod, and a second locking device for locking the third connecting rod and the fourth connecting rod. The first locking device is linked with the second locking device via a hauling rope.