Double-Hinged Door Locking Lever with Dual Contours
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing locking devices are limited in their application and cannot effectively lock doors that are hinged on both sides, allowing for opening in both left and right directions, as they are designed for single-pivot axis doors only.
Innovation Solution
A locking device with two locking contours on each mounting element, allowing the locking lever to be automatically positioned based on the door's movement, enabling secure locking in both left and right open positions without manual intervention, and featuring a guide system that allows the locking lever to move between contours, ensuring reliable locking without obstructing the door opening.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a locking device with a single locking contour is used, then the device structure is simple, but it cannot lock doors hinged on both sides
Solution Approach 1:
The locking device is designed with two locking contours on each mounting element (frame and door), allowing the same device structure to lock doors hinged on either the left or right side. The locking lever can engage with either the left or right locking contour pair depending on the door's hinged side, making the device universally applicable to both single-hinged and double-hinged doors without requiring different device designs.
2Ease of operation
If the locking lever is manually positioned, then locking reliability is high, but operation complexity increases
Solution Approach 1:
The locking lever is designed to automatically position itself into the correct locking contour based on the door's movement direction. When the door is pushed open to the left or right, the locking lever is guided by the door frame and mounting element geometry to engage with the appropriate locking contour without requiring manual intervention. This self-positioning mechanism maintains high locking reliability while eliminating the need for manual lever positioning.
Solution Approach 2:
The locking lever is designed with dynamic positioning capability, allowing it to move and engage with different locking contours (left or right) depending on the door's opening direction. The lever's position is not fixed but adapts dynamically to the door's movement, enabling automatic engagement with the correct locking contour pair while maintaining secure locking.
3Ease of operation
If the locking lever is positioned centrally, then it can access both locking contours, but it obstructs the door opening passage
Solution Approach 1:
Instead of positioning the locking lever centrally in a way that obstructs the door passage, the locking contours are arranged in a dimensional configuration where the lever engages with the contours from the side. The locking contours are positioned on the mounting elements such that the lever can access both left and right contours while extending laterally rather than projecting into the door opening space, thus clearing the passage while maintaining access to both locking positions.
Data Source
Figure 1a~1b
Figure 2a~2b
Figure 3a~3b
AI summary
The invention relates to a locking device (10) for a door (20) comprising a frame mounting element (3), a door mounting element (2) and a locking lever (1) connecting the two mounting elements (2, 3) for locking the door (20) in its open position, wherein the frame mounting element (3) and the door mounting element (2) each have two locking contours (2.2a, 2.2b, 3.2a, 3.2b) for locking the locking lever (1), which are arranged such that a double-hinged door (20) can be selectively locked in its right open position (OR) or its left open position (OL).