Dual-Thread Frame Fastening for Adjustable Wall Offset
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Solution Overview
Problem
Existing fastening systems for wooden frames in building renovations lack an efficient method to adjust the distance and alignment of frames relative to the mounting base, particularly in thermal facade renovations where insulating materials are integrated, and do not effectively accommodate the needs of window and door frames.
Innovation Solution
A fastening system featuring a shaft with dual threads, a nut, and a second fastener with a recess and holder that allows for adjustable distance and alignment of wooden frames to the mounting base, utilizing a collar nut and axial abutment for secure attachment and adjustment, enabling perpendicular and parallel alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional fastening system with a single thread and collar is used, then the attachment can be secured to the mounting base, but the distance and alignment adjustment capability is limited
Solution Approach 1:
The fastening system is divided into separate functional components: a shaft with two distinct threads for different purposes, a nut for distance adjustment, and a holder for alignment control. This segmentation allows each component to perform its specific function independently, enabling comprehensive adjustment capability while maintaining manageable system complexity
Solution Approach 2:
The shaft serves multiple functions by incorporating two different threads (first thread for securing the nut, second thread for engaging the holder) along its length. This multi-functional design allows a single component to provide both distance adjustment and alignment control, improving adaptability without proportionally increasing overall device complexity
2Length of moving object
If the attachment distance is increased to accommodate insulation materials, then thermal renovation requirements are met, but the stability and security of the attachment may be compromised
Solution Approach 1:
The shaft acts as an intermediary element that connects the mounting base to the attachment at an extended distance. By providing a rigid structural link with threaded engagement points, the shaft maintains attachment security and reliability even when the distance is increased to accommodate insulation materials
Solution Approach 2:
The holder is preliminarily positioned on the shaft at a specific location before final attachment securing. This preliminary positioning establishes the alignment and distance parameters in advance, ensuring that when the nut is tightened to secure the attachment, the desired stability and security are achieved at the required distance
Data Source
Figure 1~2
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AI summary
For attaching, for example, a rectangular wooden frame as an attachment (2) at an adjustable distance to, for example, a building wall as a mounting base (3), the invention proposes a fastening system (1) with a shaft (5) having threads (10, 12) at both ends. These threads are screwed into a nut (6), which is rotatably and axially fixedly arranged in a first fastener (7), and into a perforated disc-shaped holder (9) at the other end. The first fastener (7) is fixed to the attachment (2) such that a second end (13) of the shaft (5) with the holder (9) protrudes on the side of the mounting base (3). The holder (9) is inserted into an open-topped, slot-shaped receptacle (33) of a second fastener (8), which is fixed to the mounting base (3). The distance of the attachment (2) from the mounting base (3) can be adjusted by turning the nut (6).