Corner Bearing Axle Bolt Collar for Window Tilt-Turn Deformation
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Solution Overview
Problem
Existing corner bearing designs for tilt and turn windows and doors face issues with deformation due to lateral adjustment forces and inefficient metal strip utilization, leading to waste and increased production costs.
Innovation Solution
The design features an axle bolt with an enlarged diameter section to support the flanges during assembly, allowing for minimal axial play and reduced deformation, and a method where flanges are fixed to the axle bolt and base plate using simple stamping and welding processes, minimizing scrap and enabling cost-effective production.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the flanges are cut out from a flat sheet metal section together with the base plate to form a U-shaped cross section, then the bearing block can be assembled, but large parts of the sheet metal strip are not used and end up as scrap
Solution Approach 1:
The bearing block is divided into separate components: a base plate and flanges that are not cut from the same sheet metal section. The flanges are attached to the base plate through a standardized attachment process, allowing each component to be manufactured independently and efficiently utilized from sheet metal strips.
2Adaptability or versatility
If the pivot pin is displaced beyond its normal adjustment range, then lateral adjustment is achieved, but the pivot pin comes into contact with the cheeks or flanges and causes them to be deformed
Solution Approach 1:
The flanges are deliberately designed to be solid and rigid to prevent deformation before lateral adjustment is attempted. By designing the flanges with sufficient strength and rigidity in advance, the structure resists deformation even when the pivot pin is displaced beyond its normal adjustment range and comes into contact with the flanges.
3Strength
If the axle bolt is provided with means for limiting the adjustment path of the pivot pin, then deformation of the cheeks or flanges is avoided, but the design becomes more complex
Solution Approach 1:
Instead of providing complex adjustment limitation means throughout the axle bolt design, the patent applies a localized solution by designing the flanges themselves to be solid and deformation-resistant. The flange structure locally absorbs and resists the forces that would otherwise require complex limitation mechanisms.
4Stability of the object's composition
If the diameter of the axle bolt in the area of the external thread is increased, then the flanges can be supported during assembly and axial play is minimized, but the axle bolt requires more material
Solution Approach 1:
The axle bolt has a localized enlargement of diameter specifically in the area of the external thread where the flanges are attached. This local quality change provides the necessary support and minimizes axial play during assembly, while the rest of the axle bolt maintains its original, more material-efficient diameter.
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
This solution enhances the load-bearing capacity and utility of the bearing block while reducing production waste and costs, allowing for a more efficient and resilient assembly process.
Implementation Method 1
the collar is produced by plastic deformation of the sleeve
Implementation Method 2
it is expedient for the attachment to take place in that the flanges are fixed to the base plate by a welding process
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
The invention relates to a corner bearing, comprising a bearing block (2), which has two side members or flanges (4) that are arranged next to each other at a distance and protrude from the main plate (3), wherein a hinge pin (6) extending in a normal position relative to an axle pin is held between the flanges (4) in a tiltably mounted manner and displaceably sideways by way of an internal thread (8) by a horizontal axle pin (6) provided with an external thread (7). The hinge pin (10) engages in a hinge sleeve of a leaf hinge part. The axle pin (6) is provided at least on one of the ends (16) thereof with contact surfaces for an adjustment tool and coaxially thereto, bores (14) are provided in the flanges (4) of the bearing block (2). In order to maximize the utilization of the sheet metal strip and the load-bearing capacity of the bearing block, the axle pin (6) comprises at least one sleeve-like end (16), which extends through the bore (14) in a flange (4), wherein a collar (19) is provided on the sleeve (15) of the axle pin (6), said collar having a greater diameter than the sleeve (15) and the bore (17) in the flange (4). Furthermore, the invention relates to a method for producing the bearing block, allowing for a simple and cost-effective production of a bearing block having increased utility value.