Door Handle Prebiased Plates Elastic Anchoring
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Solution Overview
Problem
Existing door handle installation methods are cumbersome, requiring multiple tools and potentially causing deformation or breakage of thin facing plates, and do not ensure easy, quick, and accessible installation for all users, including occasional DIY enthusiasts.
Innovation Solution
A door handle system featuring deformable plates with pre-stressed elastic shape, equipped with perforation means and a clamping mechanism that uses a threaded square and screws to anchor the handles securely to the door without drilling, preventing plate deformation and ensuring solid anchoring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional rigid rectangular plates are used with drilling and anchoring pins, then the door handles can be securely fixed, but the installation process becomes cumbersome requiring multiple tools and potentially causes deformation or breakage of the plates
Solution Approach 1:
The facing plates are manufactured with a specific elastic prestressed shape (pre-bent) that allows them to deform during installation and then lock into position. This parameter change in the plate's initial shape enables tool-free installation while maintaining secure fixation, resolving the contradiction between reliability and ease of operation
Solution Approach 2:
The perforation means are pre-formed on the facing plates during manufacturing, eliminating the need for on-site drilling. The plates are also pre-bent to their final shape, so no additional bending tools or steps are required during installation. This preliminary preparation resolves the contradiction by making installation simple while ensuring reliable anchoring
2Shape
If thin facing plates are used for aesthetic purposes, then the appearance is improved, but the plates become fragile and prone to breakage during installation
Solution Approach 1:
The facing plates are given an elastic prestressed shape with specific curvature that allows them to flex during installation without breaking. This pre-bending creates elastic energy that helps the plates conform to the door surface and lock into position, maintaining both aesthetic appearance and durability
Solution Approach 2:
The elastic prestress in the plates acts as a cushioning mechanism that absorbs installation forces. The pre-bent shape allows the plates to flex and adapt to minor variations in the door surface without experiencing stress concentrations that would cause breakage, thus protecting the thin aesthetic plates from damage
3Ease of manufacture
If straight rigid facing plates are used, then manufacturing is simpler, but the plates deform under clamping force during handle assembly
Solution Approach 1:
Instead of manufacturing straight rigid plates, the invention manufactures plates with a specific curved prestressed shape. This parameter change in the initial geometry allows the plates to self-adjust under clamping force, distributing the load evenly and preventing deformation. The plates maintain their aesthetic flat appearance when installed while having the internal stress distribution of a pre-bent structure
Solution Approach 2:
The plates are pre-bent in the opposite direction of the expected deformation under clamping force. This preliminary anti-action creates a counter-stress that compensates for the clamping forces applied during handle assembly, preventing the plates from deforming and maintaining their stability and aesthetic appearance
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
Facilitates easy, quick, and accessible installation of aesthetically pleasing and solid door handles by using deformable plates that straighten under clamping force, securely anchoring the handles without the need for extensive tools or fragile anchoring pins, ensuring durability and ease of fitting.
Implementation Method 1
said plates (1, 5) are deformable , and are bent in their initial state in an elastic prestressed shape so that said perforation means (7) are fixed in the inner curvature of said plates in their initial state
Data Source
Figure 1~2
Figure 3
AI summary
The present invention relates to an assembly of door handles comprising two plates (1, 5) each having an opening passing therethrough, two handles (2, 3), a means (8) for connecting the two handles that passes through said opening, and a tightening means (4). Each of said plates (1, 5) comprises at least two means (7) for piercing the door distributed on either side of said opening, wherein said opening is the only opening passing through each plate (1, 5), wherein said connection means (8) comprises a screw connection means matching a screw means (4) freely connected to the opposite handle (2), wherein the assembly of the screw means (4) and the connection means (8) forms a tightening means via the mutual pulling force of both handles (2, 3) and both plates (1, 5) and anchors the piercing means (7) in the door. Said plates (1, 5) are deformable and are bent, in the original state thereof, into an elastically prestressed shape so that said piercing means (7) are attached in the inner curve of said plates in the original state thereof.