Door Handle Insert Mounting for Pull-Out Resistance
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Solution Overview
Problem
Existing door handle mounting methods are not sufficiently sturdy, leading to a risk of the handle being pulled out of the door.
Innovation Solution
A handle assembly comprising a first and second support member, an elongate handle body, inserts, and fasteners, where the support members are configured with neck portions and protrusions that engage with the handle body to secure the handle firmly to the door using a combination of apertures, inner holes, and fasteners.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional mounting methods are used, then the handle can be installed on the door, but the mounting is not sufficiently sturdy and the handle may be pulled out
Solution Approach 1:
The mounting system is divided into separate functional components: support members with neck portions that interface with the door, inserts that provide structural reinforcement, and fasteners that secure the assembly. This segmentation allows each component to be optimized for its specific function while collectively achieving superior mounting sturdiness.
Solution Approach 2:
The mounting structure employs nested components where inserts are positioned within openings in the support members, and fasteners pass through aligned holes in both the support members and inserts. This nested arrangement creates multiple levels of mechanical interlocking that significantly enhance the overall mounting reliability.
2Strength
If a sturdy mounting system is implemented, then the handle is securely attached to the door, but the structure becomes more complex
Solution Approach 1:
The support members are pre-formed with integrated neck portions and aperture features, and the inserts are pre-configured with aligned holes and protrusions. This preliminary preparation of components allows for strong mechanical connections to be achieved through straightforward assembly, rather than requiring complex fastening procedures during installation.
Solution Approach 2:
The inserts act as intermediary elements between the support members and the door, providing additional structural reinforcement and creating multiple engagement points. This intermediary component distributes mechanical stresses across a larger area and creates redundant attachment paths, thereby enhancing overall attachment strength.
Data Source
AI summary
A handle assembly for a door includes at least a support member, an elongate handle body, an insert and a fastener. The elongate handle body includes an opening at a handle end. An outer hole is formed on a shell of the handle body near the handle end so as to be in communication with the opening. The insert is configured to be inserted into the opening. The insert includes an aperture and an inner hole. The aperture is configured to accommodate the support member mounted on a door. The inner hole is configured to be aligned with the outer hole and be in communication with the aperture. The insert includes a protrusion that protrudes into the aperture. The fastener is configured to be inserted through the outer hole and the inner hole and press the support member against the protrusion such that the protrusion extends into a neck portion of the support member.