Adjustable Bed Base Layout to Prevent Mattress Overhang
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Solution Overview
Problem
When the back and head section of a bed is inclined, the mattress can protrude beyond the end of the support frame, leading to a loss of support and loose bed linen, due to the increased folding angle of the mattress.
Innovation Solution
A bed base with a frame and mattress support system featuring pivotable and movable mattress supporting elements, where the first set of elements moves along the frame to increase separation from the second set, and the third set moves to compensate for reduced support, maintaining adequate support even at greater displacements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the inclination of the back and head section of the bed is increased, then the comfort and support for the user's back and head is improved, but the mattress protrudes beyond the end of the mattress support or frame causing loss of support
Solution Approach 1:
The mattress support system employs dynamic adjustment mechanisms where the back and head section can be inclined independently while the foot section remains stationary. This dynamic configuration allows the support structure to adapt to different user positions without causing mattress overflow, resolving the contradiction between comfort (inclination) and support reliability (mattress positioning).
Solution Approach 2:
The bed base is divided into distinct functional segments: a stationary foot section and a movable back/head section that can be independently inclined. This segmentation allows the inclined portion to provide comfort while the stationary foot section maintains proper mattress support, preventing the mattress from protruding beyond the support frame.
2Ease of operation
If the inclination of the back and head section of the bed is increased, then the back-rest function is improved, but the sheet or bed linen becomes loose at the head end
Solution Approach 1:
The dynamic inclination mechanism allows the back and head section to tilt independently while maintaining the overall structural integrity of the bed base. This controlled movement enables the back-rest function to be enhanced without causing excessive displacement that would loosen the bed linen, as the stationary foot section anchors the mattress support position.
Solution Approach 2:
Different sections of the bed base have different functional properties: the foot section remains stationary to maintain linen stability, while the back and head section are designed to be movable to provide back-rest comfort. This local differentiation of qualities allows each section to optimize its function without negatively affecting the other.
Data Source
Figure 1a~1b
Figure 1c
Figure 2a
AI summary
According to one aspect of the inventive concept there is provided a base (100) for a bed, the base comprising a frame (102) and a mattress support (104) including: a first set of mattress supporting elements (110), a second set of mattress supporting elements (120) and a third set of mattress supporting elements (130), wherein the first set of mattress supporting elements is pivotable, in relation to the frame, and movable along the longitudinal direction, and wherein the third set of mattress supporting elements is arranged to be moved along the longitudinal direction of the frame such that a separation (D1), along the longitudinal direction, between said mattress supporting element which is closest to the third set of mattress supporting elements and the third set of mattress supporting elements, and a separation (D2), along the longitudinal direction, between the third set of mattress supporting elements and the second set of mattress supporting elements, are increased, while the inclination of the first set of mattress supporting elements is increased.