Rotating Bed Cover Frame With Side Rods for Wide Blankets
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Solution Overview
Problem
Existing bed-making devices struggle to completely straighten and position blankets and sheets wider than the mattress, as they are not adequately secured to the lateral portions, leading to uncertain final positioning and incomplete straightening during the bed-making process.
Innovation Solution
A bed-making device with a frame that rotates from horizontal to vertical, featuring two short additional rods hinged to the transverse rod, allowing the device to accommodate covers wider than the mattress by aligning with the frame when vertical and lying along the bed's sides when horizontal, ensuring complete straightening and positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the frame width is kept narrow to match the mattress width, then the device structure remains simple and compact, but covers wider than the mattress cannot be completely straightened and positioned
Solution Approach 1:
The frame is divided into a fixed portion (matching mattress width) and an extendable portion (additional rods). The additional rods can be extended laterally to match the cover width during operation, then retracted to a compact position when not in use. This segmentation allows the frame to adapt its width to different cover sizes without permanently increasing device complexity.
Solution Approach 2:
The additional rods are designed to be movable rather than fixed, allowing them to dynamically adjust their lateral position. When covers need straightening, the additional rods extend laterally; when not needed, they retract to maintain a compact structure. This dynamic adjustment resolves the contradiction between operational capability and structural simplicity.
2Adaptability or versatility
If the frame is extended to accommodate wider covers, then complete straightening of covers is achieved, but the device becomes more complex and less compact
Solution Approach 1:
The frame structure is segmented into essential components (fixed frame) and optional components (additional rods). The additional rods are only deployed when needed for wider covers, allowing the device to maintain simplicity for standard covers while providing extended capability when required.
Solution Approach 2:
The additional rods serve multiple functions: they extend the frame width to accommodate wider covers, provide lateral support during straightening, and can be positioned at different lateral distances from the fixed frame. This multi-functionality justifies the added structural elements by maximizing their utility across different operating conditions.
3Manufacturing precision
If additional rods are added to the frame, then covers wider than the mattress can be properly positioned, but the device structure becomes more complex
Solution Approach 1:
The additional rods are designed with rotational freedom, allowing them to dynamically adjust their position during the bed-making process. This dynamic capability enables precise positioning of wide covers without requiring complex fixed structures, as the rods can adapt their orientation and position based on the cover dimensions and desired final position.
Solution Approach 2:
The additional rods act as intermediary elements between the fixed frame and the wide covers. They provide the necessary lateral extension and positioning support, mediating the interaction between the compact frame structure and the wider covers, thereby achieving precise positioning without directly increasing the fundamental frame complexity.
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
Enables the automatic and efficient straightening and positioning of blankets and sheets of any desired width, allowing for either tucking under the mattress or leaving them attached, without dimensional constraints, simplifying the bed-making process.
Implementation Method 1
When the frame is in a vertical position, the covers, which are hooked to a transverse rod of the frame, i.e. to the highest part of the frame, will be straightened due to the effect of the force of gravity
Data Source
Figure 1a
Figure 1b
Figure 1c
AI summary
The present invention concerns a bed (1 ) provided with a device (2) suitable for facilitating the straightening of blankets and sheets when making the bed. Said device (2) is of the type with a frame, or surround, comprising two rods (2a, 2b) and a third transverse rod (2c) which joins the second ends of said two rods (2a, 2b), capable of rotating around an axis (4) from a horizontal to a vertical position and vice versa, the axis of rotation (4) being horizontal, transverse with respect to the length of the bed and situated in the vicinity of the head (5) of the bed; means are provided suitable for hooking the covers (7) in the highest position of the frame, i.e. to said third transverse rod (2c) of said frame, when the latter is in the vertical position, said device (2) being characterised in that a further two short additional rods (2d, 2e) are provided, connected to the ends of said transverse rod of the frame, said additional rods (2d, 2e) being able, in turn, to assume a first position when said rods (2d, 2e) are aligned with said transverse rod (2c) so as to constitute an extension of said transverse rod (2c) suitable for gripping the part of said cover (7) exceeding the width of the mattress of said bed (1 ).