Bedspread Coupler Design for Smooth Setup and Alignment
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Solution Overview
Problem
Existing bedstead designs with metal foldable frames face challenges in aligning and maintaining the bedspread, as it often requires multiple attempts, can wrinkle, and exposes underlying parts, affecting the aesthetic appearance.
Innovation Solution
The use of couplers consisting of a plate, a hook, and an elastic strap that couples with the bedframe's lower support, ensuring the bedspread is easy to set up and remains tight and smooth, with the plate disposed on the bed cloth's interior side and the hook integrating with the bedframe's lower support.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the bedspread is simply laid over the bedframe without support, then the setup process is simple, but the bedspread becomes wrinkled, wavy, or folded exposing underneath parts
Solution Approach 1:
The patent introduces an intermediate support structure consisting of a rod inserted into the bedframe, which acts as a mediator between the bedframe and the bedspread. This rod provides the necessary support to keep the bedspread smooth and taut without complicating the setup process, as the rod is easily inserted and the bedspread is simply draped over it.
Solution Approach 2:
The bedspread is designed with self-gathering features at the corners that automatically gather and secure the fabric when draped over the supported rod. This self-service mechanism eliminates the need for manual gathering or additional fasteners, maintaining ease of operation while achieving the desired smooth appearance.
2Ease of operation
If the bedspread edge hangs down freely without support, then the setup is quick, but alignment with the bedframe becomes difficult and requires multiple attempts
Solution Approach 1:
The supported rod serves as an intermediary guide that provides a fixed reference line for aligning the bedspread with the bedframe. By draping the bedspread over this supported rod, users can easily achieve proper alignment in a single attempt without needing to adjust multiple times, thus maintaining quick setup while improving alignment accuracy.
Solution Approach 2:
The rod is pre-inserted into the bedframe at the correct position and orientation before the bedspread is applied. This preliminary action establishes the proper alignment reference, allowing the bedspread to be quickly and accurately positioned without requiring subsequent adjustments.
3Shape
If the bedspread is supported by a rigid structure, then the bedspread remains smooth and aligned, but the device complexity increases
Solution Approach 1:
Instead of using a complex rigid support structure throughout, the patent applies support only locally where needed - specifically, a simple rod inserted at the corners or along the edges of the bedframe. This localized support provides sufficient structural guidance to maintain bedspread smoothness and alignment while keeping the overall device complexity minimal.
Solution Approach 2:
The solution uses a flexible, thin rod rather than a bulky rigid structure. This rod is simple enough to be easily inserted and removed, yet provides sufficient support to maintain the bedspread's smooth appearance. The flexibility of the rod allows it to adapt to the bedframe geometry without requiring complex mounting mechanisms.
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
The solution simplifies the setup process and maintains the bedspread's integrity, ensuring it remains straight, tight, and smooth, enhancing the aesthetic appearance of the bedstead by securely fastening the bedspread to the bedframe.
Implementation Method 1
an elastic strap having a first end portion coupled with the plate and a second end portion coupled with the hook
Data Source
AI summary
Disclosed are couplers, bedspreads and bedsteads. A bedspread includes a bed cloth, a bed drape and a plurality of couplers. The bed cloth has a peripheral edge corresponding to an upper peripheral frame of a bedframe. The bed drape is coupled or integrally formed with the bed cloth along the peripheral edge, and hangs down when in use. Each coupler includes a plate, a hook, and an elastic strap connecting the plate with the hook. The plate is disposed on an interior side of the bed cloth at or proximal to the peripheral edge of the bed cloth. The hook is configured to couple with a lower support of the bedframe.