Door Frame Backing Spacer with Threaded Clamping
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Solution Overview
Problem
Conventional frame spar backing devices face difficulties in inserting a spacer element between the frame spar and the wall reveal, especially when the distance is small, requiring adjustments and tools, which complicates the assembly process.
Innovation Solution
A backing device with a spacer element featuring a clamping device, including a conical elongated hole and a stop, allows for easy clamping onto a threaded shank without tools, preventing tilting and ensuring proper alignment, enabling straightforward installation even in tight spaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a spacer element is placed between the masonry and the frame to retain position during assembly, then the frame can be properly positioned, but it becomes difficult to introduce the spacer element when the distance between the frame spar and wall reveal is very small
Solution Approach 1:
The frame spar is pre-fastened to the masonry with the fastening element inserted through the frame spar and into the masonry, creating a threaded shaft that protrudes from the frame spar. The spacer element is then clamped onto this pre-existing threaded shaft, eliminating the need to introduce the spacer element before fastening and solving the difficulty of installing it in tight spaces.
Solution Approach 2:
The threaded shaft formed by the fastening element serves as an intermediary structure. Instead of directly placing the spacer element between the frame spar and masonry (which is difficult in tight spaces), the spacer element is clamped onto the threaded shaft, using it as a mediator to achieve proper positioning without requiring large gaps.
2Reliability
If conventional fastening methods are used with anchor plates and screws, then the frame can be secured to masonry, but the assembly process becomes complex and requires multiple components and tools
Solution Approach 1:
The fastening element combines multiple functions into a single component: it serves as both the anchor for securing the frame to masonry and as the threaded shaft for clamping the spacer element. This merging of functions eliminates the need for separate anchor plates, screws, and spacer elements, simplifying the overall fastening system while maintaining reliability.
Solution Approach 2:
The fastening element is designed with universal functionality - it performs both fastening (anchoring to masonry) and positioning (providing a threaded shaft for the spacer element). This multi-functionality reduces the number of components needed and simplifies the assembly process while ensuring secure frame attachment.
3Adaptability or versatility
If the frame is pre-fastened in a completed construction environment with small gaps, then work can be performed in tight spaces, but the gap is too small for traditional insertion methods
Solution Approach 1:
The frame spar is pre-fastened to the masonry with the fastening element inserted through the frame spar and into the masonry, creating a threaded shaft that protrudes from the frame spar. The spacer element is then clamped onto this pre-existing threaded shaft, eliminating the need to introduce the spacer element before fastening and solving the difficulty of installing it in tight spaces.
Solution Approach 2:
The threaded shaft formed by the fastening element serves as an intermediary structure. Instead of directly placing the spacer element between the frame spar and masonry (which is difficult in tight spaces), the spacer element is clamped onto the threaded shaft, using it as a mediator to achieve proper positioning without requiring large gaps.
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 easy and tool-free backing of frame spars in pre-fastened frames, particularly in completed construction environments, ensuring secure clamping and preventing damage to the surrounding structure.
Implementation Method 1
the clamping device consists of a slot opening into an opening area... the spacer element can be pushed onto the shaft in a clamped manner by means of the clamping device
Implementation Method 2
the spacer element has a stop which counteracts tilting of the spacer element in the clamped-on state
Data Source
Figure 1~2
Figure 3~4
AI summary
The invention relates to a backing device (10) for a frame member (28) of a door or gate frame pre-attached in a reveal (42). To simplify the backing of the frame member (28), the invention proposes that the backing device (10) has at least one spacer element (12) for backing the frame member (28), wherein the spacer element (12) has a clamping device (20) for clamping to a shaft, in particular a threaded shaft (46), of a fastening element (38). The invention further relates to a spacer element (12) for use with such a backing device (10) and to a method for backing a pre-attached frame member (28).