Universal Bracket for Push Pull Door Latch Installation
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Solution Overview
Problem
The existing push/pull operating devices for retracting a latch are complicated and inconvenient to install due to varying through-hole locations in latch devices produced by different manufacturers, requiring on-site detachment and reattachment of operational devices.
Innovation Solution
The push/pull operating device features a first and second bracket with pivot holes, slots, and engagement holes, along with transmission members, spindles, and handles, allowing for easy alignment and mounting to different door configurations, enabling easy installation and conversion between push-open and pull-open types without detaching the operational devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If mounting boards with multiple fixing holes and fasteners are used to accommodate different through-hole locations, then the device can be adapted to different latch devices, but the installation process becomes complicated and time-consuming
Solution Approach 1:
The bracket is designed with a universal structure that includes multiple slots arranged in different orientations (horizontal, vertical, inclined) and multiple pivot holes positioned at different locations. This allows the same bracket to accommodate various through-hole configurations in latch devices from different manufacturers without requiring different mounting boards or fasteners, thereby maintaining adaptability while simplifying installation
2Adaptability or versatility
If the operational device must be completely detached and reattached for different door handings, then the device can be properly configured for different applications, but the installation time and complexity increase significantly
Solution Approach 1:
The bracket incorporates dynamic adjustment capabilities through slots that allow the engagement rod to be repositioned along different paths (horizontal, vertical, inclined) and pivot holes that can be selected at different locations. This enables the same bracket to adapt to different door handings and latch configurations without requiring complete detachment and reattachment, significantly reducing installation time while maintaining full adaptability
3Reliability
If multiple fasteners and screws are used to secure the operational device to the door, then the mounting is more secure and reliable, but the installation process becomes more complicated
Solution Approach 1:
The bracket integrates multiple mounting functions into a single unified structure. Instead of using separate mounting boards with multiple fasteners and screws, the bracket combines the mounting plate, adjustment slots, and pivot hole positioning into one component. This merging maintains secure mounting through the engagement rod and slot mechanism while dramatically simplifying the installation process by eliminating the need for multiple fasteners and complex assembly steps
Data Source
AI summary
A push/pull operating device includes first and second operational devices mounted to two sides of a door. The first operational device includes a first bracket having two slots. A fixing plate is pivotably mounted to the first bracket. Two engaging rods extend through the slots of the first bracket. The fixing plate can be pivoted to a position where through-holes in a latch device and through-holes are aligned with the engaging rods. Thus, the push/pull operating device can be used with differently handed doors and different latch devices having different through-hole locations.