Bed Rail Pivot and Nesting Mechanism for Secure Storage Under Mattress
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Solution Overview
Problem
Conventional bed rails have complex assembly processes that can lead to unintended structures, lack a hidden storage solution for the guard frame, and often result in a permanent pivot mechanism that is not secure or easy to operate.
Innovation Solution
A bed rail design featuring a four-piece guard frame with different diameter support members and connecting ends to prevent incorrect assembly, a pivot mechanism that automatically engages and disengages, and a one-piece junction to minimize play and ensure secure operation, along with a sliding mechanism for easy use and hidden storage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional bed rail includes a permanent pivot mechanism, then the guard frame can swing up to a night position to prevent a person from rolling out of bed, but the pivot mechanism is not secure and does not provide a hidden storage solution for the guard frame
Solution Approach 1:
The guard frame is designed to nest within the base frame when in the day position. The support members of the guard frame extend into receiving channels of the base frame, and the junction is positioned within the base frame, creating a compact stored configuration that eliminates the need for a permanent external pivot mechanism.
Solution Approach 2:
The bed rail system transitions from a static permanent pivot mechanism to a dynamic system where the guard frame can be moved between a night position (extending from the base frame) and a day position (nested within the base frame). This dynamic configuration allows the guard frame to be deployed only when needed while providing hidden storage when not in use.
2Ease of manufacture
If a conventional bed rail includes many parts, then the guard frame can be assembled, but the user may assemble an unintended structure that does not function as intended and is not safe
Solution Approach 1:
The guard frame is divided into multiple support members (first support member, second support member, third support member) that are separately manufactured and then assembled. Each support member has specific connecting ends with different diameters and connection features that guide proper assembly sequence and orientation.
Solution Approach 2:
The support members feature asymmetric connection interfaces with different diameters (first diameter, second diameter, third diameter) and non-uniform connecting ends. This asymmetry ensures that parts can only be assembled in the correct orientation and sequence, preventing unintended structures while maintaining ease of manufacture through modular components.
3Ease of operation
If the guard frame is designed to tuck under the mattress, then the guard frame can be stored out of sight, but the mechanism requires precise engagement with the base frame and mattress
Solution Approach 1:
The base frame is pre-configured with receiving channels and engagement features positioned to automatically receive and secure the support members when the guard frame is placed in the day position. The junction is pre-positioned within the base frame with engagement features that guide the support members into correct alignment during assembly.
Solution Approach 2:
The engagement mechanism is designed to be self-aligning and self-securing. When the support members are inserted into the base frame, the asymmetric connecting ends and receiving channels automatically guide them into the correct position, and engagement features (such as tabs fitting into slots or friction-fit interfaces) automatically secure them without requiring precise manual alignment or additional fastening steps.
Data Source
AI summary
A bed rail for engagement between a mattress and a box spring and having a base support and a guard frame, with guard frame having a pivot that pivots and slides in the base support. The base support includes a first seat that seats the pivot and a second seat that seats a biased piece sliding axially on a first support member of the guard frame. The first support member extends from a plastic piece that forms a junction from which a second support member and the pivot extend and that nestles up to the second seat.