Support device with slats and bed base foundation provided with such support devices
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Solution Overview
Problem
Existing slatted support devices for bedding bases face production and assembly difficulties due to complex structures, particularly the end tenons of movement transmission rods pivoting in bearings, which complicate attachment and adjustment.
Innovation Solution
A slatted support device with two parallel transverse slats connected by deformable elbow levers, featuring hollow square section movement transmission rods, an attachment plate with cylindrical hinge pins, and a spiral spring for elastic return, allowing for adjustable firmness and simplified attachment to a bed base frame using snap-fastening and tenon mechanisms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If end tenons of movement transmission rods pivot in bearings of the bed frame, then the slatted support device achieves stable attachment, but production and assembly difficulties arise due to structural complexity
Solution Approach 1:
The patent extracts the complex bearing and tenon mechanism from the bed frame and relocates it to the slatted support device itself. The movement transmission rods with square sections and their housing are now integral parts of the slatted support device, separating the complexity from the bed frame structure and simplifying overall assembly.
Solution Approach 2:
The housing for the movement transmission rods is located in the extension of the embedding orifice of the articulation axes, and the articulation pins project from their mounting hole and partially penetrate into the mounting housings and into the movement transmission rods. This nested arrangement consolidates multiple components into a compact integrated structure.
2Force
If rigid bed frame with stop and elastic return means is used, then forces are transmitted to the frame, but assembly complexity increases due to multiple components
Solution Approach 1:
The patent combines the stop function and elastic return means into the slatted support device structure itself. The elastic return means are integrated with the slat end cap structure and bell cranks, eliminating the need for separate stop components in the bed frame and reducing overall component quantity.
Solution Approach 2:
The slatted support device becomes self-sufficient by incorporating its own stop and elastic return mechanisms. The device serves its own functional needs without requiring additional components from the bed frame, simplifying the overall system architecture.
3Stability of the object's composition
If deformable elbow levers with articulated arms are used, then synchronized slat movement is achieved, but manufacturing complexity increases
Solution Approach 1:
The deformable elbow levers are segmented into two articulated arms (lower and upper) that can be manufactured separately and then assembled through simple articulation. This segmentation allows each arm to be produced using standard manufacturing processes without requiring complex integrated tooling.
Solution Approach 2:
The bell cranks are made in one piece with their articulation in the form of thinning of material, creating a composite structure that combines rigidity where needed with flexibility at the articulation points. This approach simplifies manufacturing compared to assembling multiple separate components.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Simplifies assembly and adjustment, ensures synchronized movement of slats, and provides adjustable firmness, addressing production challenges while maintaining effective load distribution and suspension functionality.
Implementation Method 1
elastic return means adapted to tend to move said slat end cap structure apart from said means adapted for attachment to the bed base frame
Implementation Method 2
said elastic return means consist of a spiral spring interposed between a support plane of said slat end cap structure and a support plane of a plate integral with said fixing plate
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
The invention relates to a slatted support device (1) for use with a bed base comprising a bed frame (L). The slatted support device (1) comprises two parallel transverse slats (2, 2a) connected at each end by a slat end cap structure (3) carried by two deformable angled levers (5, 6) terminating in a portion of a toothed wheel meshing with one another and coupled for rotation by motion transmission rods (11). It further comprises means (14) for attaching the device to the bed frame (L), and elastic return means adapted to pull the slat end cap structures (3) away from the attachment means (14).According to the invention, said means of fixing (14) to the bed frame (L) consist of a fixing plate (15), associated with a support base (16), which fixing plate (15) is provided with means of fixing to the two angled levers (5, 6), which fixing plate (15) and which support base (16) include means for their removable attachment, and which support base (16) is provided with means for its attachment to said bed frame (L).