Double-Leaf Door Locking System with Panic Function
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Solution Overview
Problem
Existing lock systems for double-leaf door systems with a panic function are complex and require numerous mechanical parts and connections to release the lock bolt, making them inefficient.
Innovation Solution
A simplified lock system design featuring a guide slot with a blocking section in the slide, an actuating pin, and a lever element that converts movement into a lifting motion of the slide, allowing the lock bolt to be easily retracted into the lock case using a counterbolt and follower mechanism, reducing the complexity and mechanical parts needed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional actuating mechanism with multiple mechanical parts is used to retract the lock bolt, then the lock can be released, but the device complexity increases and the mechanism becomes inefficient
Solution Approach 1:
The patent extracts and eliminates unnecessary intermediate mechanical components from the actuating mechanism. By directly connecting the actuating pin to the lock bolt through a simplified guide slot and blocking section design, the system removes complex linkages while maintaining reliable panic function operation.
Solution Approach 2:
The guide slot in the slide serves multiple functions: it guides the actuating pin during retraction, provides the blocking section to prevent premature movement, and enables direct force transmission. This multi-functional design reduces the need for separate components while ensuring reliable operation.
2Reliability
If the lock bolt is designed to protrude from the lock case for engagement, then secure locking is achieved, but the mechanism requires complex parts to control retraction
Solution Approach 1:
The actuating pin serves as an intermediary element that directly transmits force from the actuating mechanism to the lock bolt. The guide slot in the slide acts as a mediator that controls and guides this force transmission, enabling simple retraction while maintaining secure engagement when protruding.
3Manufacturing precision
If multiple mechanical connections are used to control lock bolt movement, then precise control is achieved, but the ease of operation decreases
Solution Approach 1:
The guide slot with its blocking section design enables the mechanism to self-regulate lock bolt movement. The blocking section automatically prevents premature retraction, and the guide slot naturally guides the actuating pin, eliminating the need for complex control systems while maintaining precise position control.
Data Source
Figure 1a~1b
Figure 2a~2b
Figure 3a~3b
AI summary
The invention relates to a locking system (1) for a two-leaf door assembly, comprising a lock (10) which can be arranged on an active leaf and which has a lock case (11). The lock further has a counter lock case (12) that can be arranged on an inactive leaf. A deadbolt (13) is arranged in the lock case (11) so as to be movable in a bolt axis (14), and the deadbolt (13) can be moved between a position in which the bolt is retracted into the lock case (11) and a position in which the bolt protrudes out of the lock case (11) and engages into the counter lock case (12). Furthermore, a slider (15) is received in the lock case (11), said slider being operatively connected to the deadbolt (13) and carrying out a stroke movement along a stroke axis (16) when the deadbolt (13) is moved in the bolt axis (14). The counter lock case (12) is equipped with an actuating mechanism (17), by means of which the deadbolt (13) can be brought into the position in which the bolt is retracted into the lock case (11), and the deadbolt (13) is equipped with an actuating pin (18) which can be moved in the direction of the bolt axis (14) into the deadbolt (13) by means of the actuating mechanism (17) such that the actuating pin (18) comes into operative connection with the slider (15) and triggers a stroke movement of the slider (15) in the stroke axis (16), whereby a transfer of the deadbolt (13) into the lock case (11) can be released. According to the invention, the slider (15) has a guide slot (19) in which a guiding element (20) that is disposed on the deadbolt (13) is guided, said guide slot (19) having a blocking portion (19a) out of which the guiding element (20) can be guided when the slider (15) is lifted in the stroke axis (16) by the actuating pin (18).