Bed Rail Rotating Seat Locking for Lower-Part Assembly
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Solution Overview
Problem
Existing bed rails are often expensive due to numerous parts that require assembly, use of costly metals like steel, and complex operations.
Innovation Solution
A bed rail design featuring a guard frame that can swing between up and down positions, with a rotating seat mechanism that locks the guard frame in the up position using a pin and semi-circular slot arrangement, minimizing metal parts and simplifying assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional bed rail designs use numerous metal parts and complex assembly operations, then the locking reliability is improved, but the manufacturing cost and device complexity increase
Solution Approach 1:
The patent combines the locking mechanism and the guard frame into a single integrated assembly. The rotatable seat is directly formed as part of the guard frame structure, eliminating the need for separate locking components. This merging reduces device complexity while maintaining locking reliability through the integrated design that uses the guard frame's own structural elements for locking.
Solution Approach 2:
The guard frame structure serves its own locking function through the rotatable seat mechanism. The U-shaped channel and pin arrangement allows the guard frame to lock itself into position without requiring external locking components. The structure uses its own geometric features (U-shaped channel, pin protrusions) to create the locking action, eliminating the need for separate locking devices.
2Reliability
If traditional bed rail designs use numerous parts requiring assembly, then the locking reliability is improved, but the ease of manufacture deteriorates
Solution Approach 1:
The locking mechanism is merged with the guard frame structure, reducing the number of discrete parts that need to be manufactured and assembled. The rotatable seat is formed as an integral part of the guard frame, and the locking function is achieved through the integrated U-shaped channel and pin arrangement, simplifying manufacturing processes.
Solution Approach 2:
The patent replaces expensive metal locking components with simpler, potentially plastic or molded materials for the rotatable seat and associated locking features. This substitution reduces material costs and simplifies manufacturing while maintaining adequate locking reliability for the application.
3Strength
If traditional bed rail designs use expensive metal materials, then the strength is improved, but the manufacturing cost increases
Solution Approach 1:
The patent replaces expensive metal components with simpler, potentially plastic or molded materials for the rotatable seat and locking mechanism. The guard frame itself may retain metal construction for strength, but the locking components are substituted with cheaper materials that are sufficient for the lower-stress locking function, reducing overall material costs.
Solution Approach 2:
The design potentially combines different materials - metal for the structural guard frame requiring strength, and plastic or molded materials for the rotatable seat and locking components where full metal strength is not required. This composite approach optimizes both strength requirements and cost reduction goals.
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.