Bed Rail Rotating Seat Lock for Simplified Guard Frame Assembly
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Solution Overview
Problem
Bed rails designed to prevent children from falling out of bed are often expensive due to complex assembly requirements and the use of costly materials like steel, and they can be cumbersome to set up.
Innovation Solution
A bed rail with a guard frame that swings up and down, featuring a rotating seat mechanism to lock the frame in place, reducing the number of metal parts and simplifying assembly by using plastic components and a limited number of assembly combinations, allowing for easy setup with minimal connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If bed rail apparatus includes many parts and uses expensive metal materials, then reliability and safety are improved, but manufacturing cost and assembly complexity increase
Solution Approach 1:
The patent combines multiple functions into fewer components. The S-shaped bar integrates both a pivot portion (for rotational movement) and a locking portion (for securing the guard frame), eliminating the need for separate pivot and locking mechanisms. This merging reduces the total number of parts while maintaining the reliability needed for child safety.
Solution Approach 2:
The S-shaped bar serves multiple functions simultaneously: it acts as a structural support, a pivot mechanism, and a locking device. The guard frame can swing between up and down positions using the pivot portion, and the locking portion secures the frame in the desired position. This multi-functionality reduces assembly complexity while ensuring safety.
2Reliability
If bed rail apparatus includes many parts and complex assembly, then locking reliability is improved, but ease of manufacture and setup time worsen
Solution Approach 1:
The S-shaped bar is divided into distinct functional segments: a curved portion that enables swinging motion and a locking portion with a slot that provides secure positioning. This segmentation allows each part to be manufactured independently with simple geometry, reducing manufacturing complexity while ensuring reliable locking through the pin-slot engagement mechanism.
3Strength
If expensive metal materials are used throughout the bed rail, then strength and durability are improved, but manufacturing cost increases
Solution Approach 1:
The patent applies metal material selectively only where structural strength is critical: the S-shaped bar (for load-bearing and mechanical function) and the pin (for locking). Other components can be made from less expensive materials. This local application of expensive materials minimizes cost while maintaining the structural strength necessary for safety.
Data Source
AI summary
A bed rail having a guard frame that prevents a child from rolling off a bed and a pair of legs that extend between the mattress and box spring. The guard frame swings between up and down positions and is pivotally connected to the legs via a first junction. A second junction locks the guard frame to the legs. The second junction includes a rotatable seat that engages a pin extending from the guard frame. The bed rail further includes a strap that engages a proximal end of a leg, a distal end of the leg, and an anchor, which engages the side of the bed opposite of the bed rail.