Ceiling Hanger With Adjustable Oblong Fastening Holes
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Solution Overview
Problem
Existing ceiling hangers with laterally protruding brackets have limited flexibility in hole placement, making it difficult to install on reinforced concrete ceilings or non-load-bearing areas, requiring reassembly if precise hole alignment is not possible.
Innovation Solution
The use of oblong holes in the brackets allows for adjustable hole positioning, enabling installation on non-drillable steel elements and non-load-bearing areas, with elongated holes that can be drilled at an angle and used for angled screw insertion, and additional features like sheet metal rims and longitudinal beads for stabilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If circular holes are provided in the brackets for fastening, then the fastening point is precisely defined, but the installer cannot adapt to non-drillable areas or offset locations without reassembling the entire hanger
Solution Approach 1:
The patent changes the geometric parameter of the fastening opening from a circular hole to an oblong hole. This parameter change allows the opening to accommodate multiple drilling positions along its length, enabling adaptability to different ceiling locations without requiring reassembly of the entire hanger. The oblong shape provides a range of valid fastening positions while maintaining structural integrity.
2Ease of operation
If the brackets protrude laterally over the legs, then additional fastening points are available, but the holes in the brackets limit fastening to precisely defined points only
Solution Approach 1:
The patent modifies the fastening opening geometry from circular to oblong, which fundamentally changes the operational characteristics. The oblong shape provides both ease of operation through larger target area and flexibility in hole placement by allowing drilling at multiple positions along the elongated dimension, resolving the contradiction between these two requirements.
3Ease of manufacture
If the legs are bent upwards after C-profiles are screwed between them, then the ceiling panels can be installed, but the initial hole placement flexibility is lost
Solution Approach 1:
The patent applies preliminary action by providing oblong holes in the brackets before installation. This preliminary design feature enables the installer to first position the hanger approximately using the elongated opening, then drill and fasten at the optimal location within the oblong boundary, all before the legs are bent upwards. This sequence maintains hole placement flexibility throughout the assembly process.
Data Source
Figure 1
Figure 2
AI summary
The device i.e. ceiling hanger (10), has a bracket (14) is formed over a reference bending areas at longitudinal ends of a base (12). The bracket is provided with a hole sample. Fixing openings (18, 38) are provided in the base and are arranged partially in lugs (26), which project laterally over the fixed openings in a bent condition of the bracket. The fixing openings (38) are formed as longitudinal holes in the lugs. The fixing opening (18) is formed longitudinal hole in the base, where the ceiling hanging device is made of sheet metal.