Removable Flush Pull Door Handle With Flange-Mount Assembly
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Solution Overview
Problem
Existing flush pull door handles are either physically molded into doors, requiring dismantling for removal or replacement, or require concurrent manufacturing with the door, limiting their serviceability and safety in preventing improper door securing.
Innovation Solution
A flush pull handle with a mounting assembly that includes a top, bottom, and side portions with fastener openings, allowing for secure affixation to a door without modifying it, and a pull assembly with a flange mount opening for easy installation and removal, ensuring the handle can be serviced without disassembling the door.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the flush pull handle is physically molded into the door, then the handle provides safety by preventing chains from securing doors, but the handle cannot be removed or replaced without dismantling the door
Solution Approach 1:
The door handle system is divided into separate components: a door receiver assembly that remains permanently mounted in the door, and a removable handle assembly that can be detached and replaced. This segmentation allows the safety function to be maintained through the permanent receiver while enabling easy handle replacement without door dismantling.
Solution Approach 2:
The handle portion is extracted from the door structure itself and made into a separate, removable component. The door receiver remains fixed in the door to maintain safety functionality, while the handle can be easily removed and replaced independently, solving both the safety requirement and the ease of repair need.
2Strength
If the flush pull handle is secured to the door during manufacturing, then the handle is firmly attached, but the door and handle must be manufactured concurrently and the handle cannot be changed later
Solution Approach 1:
The system separates the permanently attached door receiver from the replaceable handle, allowing the receiver to be securely installed during door manufacturing while the handle can be independently replaced later without affecting the attachment strength of the receiver to the door.
Solution Approach 2:
The handle is designed with dynamic characteristics - it can be firmly attached during installation but also easily removed and replaced when needed. The mounting mechanism provides strong initial attachment while allowing future adaptability for handle changes without requiring door reconstruction.
3Ease of operation
If outwardly extending door handles are used, then the handles are easy to grasp, but they provide hooking mechanisms that allow chains to prevent doors from being opened
Solution Approach 1:
The design converts the potential harm of protruding handles being used for chain attachment into a benefit by providing a flush-mounted handle that eliminates the protruding portion. The handle maintains grasping functionality through its contoured shape while the flush mounting prevents chain attachment, thus converting the original safety hazard into a safety feature.
Solution Approach 2:
Instead of having the handle extend outward from the door surface, the design inverts the approach by having the handle sit flush with or recessed into the door surface. This inversion maintains the grasping function through the handle's three-dimensional shape while eliminating the protruding element that could be used for chain attachment.
Data Source
AI summary
The present invention provides a flush pull handle affixable to a door. The handle includes a mounting assembly including a top portion, bottom portion, first side portion and a second side portion, the mounting assembly affixable to the door via at least one fastener. The mounting assembly includes at least one mounting flange. The handle further includes a pull assembly including an assembly interior portion having a first interior side and a second interior side, the first interior side having at least one flange mount opening. The pull assembly includes an assembly face having a handle flush with the pull assembly extruding across at least a portion of the assembly interior portion for allowing a pulling action on the door handle. Such that, the pull assembly mounts in the mounting assembly based at least on the mounting flange of the mounting assembly extruding through the flange mount opening.