Door Handle Profile Clipping for Precise Edge Fixing
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Solution Overview
Problem
Existing methods for fixing a door handle profile to a door edge, such as adhesion, screws, and barbed dowels, face issues like precision requirements, visibility of screws, and high costs, particularly when using barbed dowels and grooves.
Innovation Solution
The use of auxiliary anchoring pieces with specific configurations and positioning means, such as plates with through openings and barbed projections, allows for clipping-based fixation of the profile, which can be supplemented with adhesive for secure attachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If fixing is carried out by means of contact adhesive, then the profile can be fixed to the door edge, but the position cannot be rectified and precision is required from the start
Solution Approach 1:
The patent applies preliminary action by providing positioning means (protrusions or guides) on the auxiliary anchoring pieces before the actual fixing process. These positioning features allow the profile to be correctly positioned on the door edge before adhesive application, enabling position rectification and reducing the need for high initial positioning precision while ensuring accurate final placement.
2Strength
If fixing is carried out by means of screws, then the profile can be securely attached, but the screws are visible and produce an unsightly effect
Solution Approach 1:
The patent extracts the visible screw heads from the final assembly by using countersunk screw holes that allow screw heads to be recessed below the surface of the auxiliary anchoring pieces. This maintains the secure mechanical attachment while eliminating the unsightly visual effect of protruding screws, as the screw heads are hidden within the recessed holes.
Solution Approach 2:
The auxiliary anchoring pieces serve as an intermediary element between the profile and the door edge. These pieces provide hidden screw mounting locations, allowing the mechanical fastening to occur within the anchoring pieces themselves rather than being visible on the profile or door edge, thus maintaining both strength and aesthetics.
3Strength
If fixing is carried out by means of barbed dowel and groove, then the profile can be fixed to the door edge, but the system becomes more expensive due to additional operations
Solution Approach 1:
The patent segments the fixing system into separate functional components: auxiliary anchoring pieces that are pre-fixed to the door edge using simple methods (adhesive or minimal screws), and the profile that clips onto these pieces. This segmentation eliminates the need for complex integrated barbed dowel-groove systems, as the anchoring pieces can be manufactured independently and attached using simpler, less expensive operations.
Solution Approach 2:
The auxiliary anchoring pieces act as intermediary elements that simplify the overall fixing system. Instead of requiring direct complex barbed dowel-groove integration between the profile and door edge, the anchoring pieces provide a simplified intermediate interface that can be attached using basic adhesive or minimal fastening, reducing manufacturing complexity and cost.
4Manufacturing precision
If auxiliary anchoring pieces are used with clipping means, then the profile can be fixed with correct positioning, but additional components are required
Solution Approach 1:
The auxiliary anchoring pieces are designed to perform multiple functions simultaneously: they provide mechanical attachment points (via screw holes), positioning references (via protrusions or guides), and clipping interfaces (via opposing configurations with the profile). By consolidating these multiple functions into a single component, the patent reduces the need for separate positioning fixtures, guides, and fastening elements, thereby reducing overall device complexity despite adding the anchoring pieces.
Data Source
Figure 1~2
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Figure 6~8
AI summary
Furniture door with handle, comprising a panel (2) on one of the edges of which (7) a profile (3) comprising the handle is fixed to said edge by clipping and by way of an auxiliary piece (4).