Fitting for fixing a door
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Solution Overview
Problem
Existing shower cubicle fittings with clamping rings face issues of indirect contact with the carrier profile, leading to play and water ingress, which compromises the adjustment functionality over time due to soap residue or limescale contamination.
Innovation Solution
A direct contact fastening device with stop surfaces and screws, eliminating the need for a hinge plate, combined with a self-contained design and cover cap to prevent water ingress, and an asymmetric lifting sleeve for precise door positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a clamping ring is inserted into a hinge plate for mounting, then the fastening device can be connected to the support profile, but indirect contact creates play and allows water ingress that compromises adjustment functionality
Solution Approach 1:
The invention removes the hinge plate from the system entirely. The fastening device is mounted directly to the support profile using screws, eliminating the intermediate hinge plate component that caused indirect contact, play, and water ingress pathways.
Solution Approach 2:
The mounting function and the fastening function are merged into a single integrated fastening device. The device combines the mounting bracket and clamping mechanism into one component that attaches directly to the support profile, reducing the number of interfaces where water can penetrate.
2Manufacturing precision
If the clamping ring is tightened to secure the lifting sleeve, then the door position is fixed, but the circumference decreases creating gaps with the hinge plate
Solution Approach 1:
By removing the hinge plate entirely, the invention eliminates the gap formation problem that occurs when the clamping ring tightens. The fastening device connects directly to the support profile with screws, so clamping action on the lifting sleeve does not create relative movement or play with an intermediate plate.
3Ease of operation
If the fitting structure is open to allow adjustment mechanisms to function, then the door can be positioned correctly, but water and contaminants can enter and compromise the mechanism
Solution Approach 1:
The invention uses a cover made of flexible or transparent material that encloses the adjustment mechanism. This protective shell allows the mechanism to function while preventing water and contaminants from entering, thus protecting the adjustment functionality over time.
Solution Approach 2:
The cover is designed to prevent water ingress before contamination can occur. By providing a protective barrier in advance, the invention prevents soap residue and limescale from accumulating on the adjustment mechanism, eliminating the need for maintenance related to contamination.
Data Source
Figure 1~2
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AI summary
Fitting (1) for fastening a door (41), in particular a door (41) for a shower cubicle or shower enclosure (100), comprising: a lifting element (2) with at least one support surface (3) for raising and lowering the door (41) during the opening and closing process of the door (41), a pivot profile (40) rotatably mounted on the lifting element (2), to which the door (41) can be fastened, wherein the at least one support surface (3) of the lifting element (2) is operatively connected with at least one complementary support surface (4) arranged on the pivot profile (40), a support profile (30) for receiving the door (41) that can be fastened on the pivot profile (40), a fastening device (5) for the lifting element (2), wherein the lifting element (2) is held in a rotationally secure position by the fastening device (5) in the mounted state, wherein the fastening device (5) has at least one stop surface (16) over which the The fastening device (5) can be connected to the support profile (30).