Door Handle Protective Insert for Wall Impact Prevention
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Solution Overview
Problem
Door handles often contact walls near corners, causing damage to both the handle and the wall due to lack of effective barriers.
Innovation Solution
A door handle design with a rotatable handle body and a removable protective insert that fits into a slot, using elastic materials like silicone to prevent contact between the handle and the wall, thereby acting as an integral barrier.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a door handle is positioned near a wall corner, then the door can be installed in standard door prep holes, but the handle body contacts the wall causing damage to both the wall and handle
Solution Approach 1:
The patent introduces an insert as an intermediary component between the handle body and the wall. This insert protrudes from the handle body and contacts the wall first, preventing direct contact between the handle body and wall. The insert acts as a mediator that absorbs the harmful contact, resolving the contradiction between maintaining standard installation compatibility and preventing damage.
Solution Approach 2:
The insert serves as a pre-positioned protective barrier that cushions the handle body from wall contact before damage can occur. By having this protective element in place beforehand, the system prevents the harmful effect of direct contact while maintaining the original installation configuration.
2Object-affected harmful factors
If a protective barrier is added between the handle and wall, then damage is prevented, but the device complexity increases
Solution Approach 1:
The insert is integrated into the handle body structure, merging the protective function with the existing handle assembly. Rather than adding a separate external device, the insert becomes part of the handle itself, reducing overall system complexity while still providing damage prevention.
Solution Approach 2:
The protective function is segmented into a separate insert component that can be independently manufactured and installed. This segmentation allows the insert to be optimized for protection while the handle body remains optimized for operation, and the modular nature simplifies manufacturing and assembly.
3Object-affected harmful factors
If the protective insert is made permanent, then protection is ensured, but installation and removal become difficult
Solution Approach 1:
The retention mechanism transitions from a static permanent attachment to a dynamic reversible system. The snap-fit design with retention features allows the insert to be securely held during operation (providing consistent protection) while enabling easy installation and removal when needed, balancing protection reliability with operational flexibility.
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
Prevents damage to walls and handles by absorbing impact forces with the insert, allowing easy installation and removal, and maintaining handle functionality.
Implementation Method 1
The insert may be made of a material with a Young's Modulus in the range of 1 MPa-50 MPa, inclusive of said values. This is to say that the insert may be substantially elastic, whereby it may absorb the force of the door handle moving towards an object (such as a wall).
Data Source
AI summary
Embodiments of the present invention comprise a door handle with a handle body connected to a door via a door connector. A slot may be configured in the handle body. The slot may have an open end and an open front that expose an inside of the slot to an exterior of the handle body. One or more slot bars may be configured within the slot. An insert may have one or more slot bar receivers that are each configured to receive one of the one or more slot bars. The insert may be removably configured within the slot. A protruding insert portion may protrude from the slot open end and/or the slot open front. The protruding insert portion may act as a barrier between the handle body and an object to prevent damage to the door handle and/or object.