Travel Bed Folding Mechanism with Synchronized Locking and Unfolding
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Solution Overview
Problem
Existing foldable travel beds have complex and inconvenient locking mechanisms, making them difficult for users to operate effectively.
Innovation Solution
A travel bed design featuring a first and second locking unit with a four-bar linkage mechanism, where the first locking unit locks and unlocks the first and second connecting rods, and the second locking unit locks and unlocks the third and fourth connecting rods, using a hauling rope to unlock both units simultaneously, along with an elastic mechanism to facilitate easy folding and unfolding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple separate locking mechanisms are used for the bottom support and surrounding frame, then each component can be locked independently, but the structure becomes complicated and operation becomes inconvenient
Solution Approach 1:
The patent combines multiple locking mechanisms into a single integrated locking device located at the center of the bottom support. This locking device simultaneously controls the locking and unlocking of both the bottom support and the surrounding frame, eliminating the need for separate locking mechanisms and reducing overall structural complexity while maintaining reliable locking function.
Solution Approach 2:
The central locking device serves multiple functions: it locks and unlocks the bottom support, locks and unlocks the surrounding frame, and coordinates the folding action of both components. This multi-functional design simplifies the overall locking system while ensuring reliable operation of all bed components.
2Reliability
If separate locking mechanisms are used for bottom support and surrounding frame, then each can be locked independently, but operation becomes very inconvenient for users
Solution Approach 1:
By merging the locking controls into a single central locking device, the patent enables users to lock and unlock both the bottom support and surrounding frame with one operation. This eliminates the need for users to manually operate separate locking mechanisms on different components, significantly improving ease of operation while maintaining secure locking.
Solution Approach 2:
The central locking device acts as an intermediary that coordinates the locking and unlocking actions between the bottom support and surrounding frame. When the user operates this single locking device, it simultaneously controls the locking status of both components, simplifying user interaction while ensuring stable locking.
3Adaptability or versatility
If the bedstead is folded by folding bottom support and surrounding frame separately, then each component can be folded independently, but the folding process becomes time-consuming and complex
Solution Approach 1:
The patent merges the folding control of the bottom support and surrounding frame into a single coordinated action through the central locking device. When the locking device is released, both components fold simultaneously in a coordinated manner, dramatically increasing folding speed while maintaining the flexibility needed for complete bed collapse.
Solution Approach 2:
The locking device is designed to simultaneously control the locking status of both the bottom support and surrounding frame before folding begins. This preliminary coordinated locking ensures that when folding is initiated, both components are ready to fold together, eliminating sequential operations and accelerating the overall folding process.
Data Source
Figure 1
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AI summary
Disclosed is a travel bed comprising a bottom support, a upper surrounding frame, stand rods (1) and fixing bases (2). The upper surrounding frame comprises a first surrounding rod and a second surrounding rod which are rotatably connected with a first connector (32). The first surrounding rod comprises a first connecting rod (30) and a second connecting rod (31) which are connected with a second connector (330), and the second surrounding rod comprises a third connecting rod (35) and a fourth connecting rod (36) which are connected with a third connector (340). The upper surrounding frame further comprises a first locking device for locking the first connecting rod (30) and the second connecting rod (31), and a second locking device for locking the third connecting rod (35) and the fourth connecting rod (36). The first locking device is linked with the second locking device via a hauling rope (37). When one of the first locking device and the second locking device is unlocked, the other locking device is unlocked simultaneously, and the stand rods (1) keep upright. The third connector (340) in at least one other direction may be unlocked simultaneously by unlocking the second connector (330) of the surrounding rods so as to achieve the folding of the surrounding frames. A bottom rod (40) and the bottom support are driven to fold synchronously via a top rod mechanism on the stand rods (1).