Hinged Drywall Liner With Segmented Gypsum Panels
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Solution Overview
Problem
The process of finishing drywall corners is time-consuming and skill-dependent, especially for inner and outer corners, which increases construction costs and labor time, and is challenging for DIY individuals to achieve a clean, visually imperceptible joint.
Innovation Solution
A drywall apparatus with gypsum-containing segments hinged together via a groove, reinforced with non-metallic strengthening material, allowing for easy formation of inner and outer corners without the need for additional metal corner sections, and can be manufactured using a non-subtractive method to avoid waste and save time and expense.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional taping and joint compound application is used to finish drywall corners, then the corner joint can be completed, but the process is time-consuming and highly dependent on the skill of the drywall finisher
Solution Approach 1:
The drywall board is segmented into two separate boards, each with a tapered edge. The tapered edges are designed to mate together at the corner, creating a pre-formed corner joint that eliminates the need for traditional taping and joint compound application. This segmentation allows the corner to be installed as a pre-assembled unit rather than requiring skill-intensive finishing work.
Solution Approach 2:
The corner joint is prepared in advance by pre-tapering the edges of the drywall boards during manufacturing. The tapered edges are shaped to fit together perfectly at the corner, creating a pre-formed joint that requires no additional finishing. This preliminary action transfers the finishing work from the installation phase to the manufacturing phase, where it can be done more efficiently and consistently.
2Strength
If metal corner sections are used to form outer corners, then the corner structure is strengthened, but additional components and attachment steps are required
Solution Approach 1:
The corner strength function is merged into the drywall boards themselves through the tapered edge design. The interlocking tapered edges create a mechanically strong joint that eliminates the need for separate metal corner sections. The corner strength is achieved through the geometry and fit of the tapered edges rather than through additional reinforcement components.
Solution Approach 2:
The metal corner sections are extracted from the corner construction system entirely. Instead of adding metal reinforcement, the patent uses the tapered edge geometry of the drywall boards themselves to provide both the corner formation and structural strength. This extraction simplifies the overall system by removing unnecessary components and attachment steps.
3Manufacturing precision
If traditional corner finishing methods are used, then the corner can be completed, but the process requires extensive skill to achieve a clean, visually imperceptible joint
Solution Approach 1:
The drywall is segmented into two boards with precisely engineered tapered edges. The taper angles and dimensions are designed to mate together perfectly at the corner, creating a pre-formed joint with high precision. This segmentation allows the precision work to be done during manufacturing rather than requiring skill-intensive field work.
Solution Approach 2:
The tapered edges are designed to self-align and self-form the corner joint without requiring skill-intensive finishing work. The geometry of the tapered edges guides the boards into proper alignment and creates a clean joint automatically upon installation, making the process accessible to DIY individuals without extensive drywall finishing experience.
4Manufacturing precision
If multiple iterations of joint compound application and sanding are performed on corners, then the corner appearance is improved, but the overall construction cost and labor time increase
Solution Approach 1:
The corner appearance is prepared in advance through pre-tapering the edges during manufacturing. The tapered edges are shaped to create a clean, visually imperceptible joint when mated together, eliminating the need for multiple iterations of joint compound application and sanding. This preliminary action transfers the appearance work to the manufacturing phase where it can be done more efficiently.
Solution Approach 2:
The traditional multi-step corner finishing process (taping, multiple coats of joint compound, multiple sanding iterations) is skipped entirely. The patent rushes through to the final result by using pre-formed tapered edges that create the desired appearance directly upon installation, eliminating the time-consuming intermediate steps.
Data Source
Figure 1~2A
Figure 2B~2C
Figure 2D~2F
AI summary
Described herein is a drywall apparatus including drywall liner. A first gypsum- containing segment is disposed on an internal side of the drywall liner, and a second gypsum-containing segment is disposed on the internal side of the drywall liner such that a groove exists between the first segment and the second segment. The drywall liner connects the first segment to the second segment such that the first segment and the second segment are capable of hinging about a hinge axis parallel to the groove.