Rotating Bolt Mechanism With Sliding Magnet for Sticking Prevention
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing bolt mechanisms face challenges with variable door and jamb distances, leading to complex adjustments and manufacturing issues, and can stick due to magnetic interactions, especially with large door motions, resulting in failure to open.
Innovation Solution
A bolt mechanism featuring a rotatable locking bolt with a magnetic element that slides within a striking plate opening, utilizing a spring-loaded locking slide to ensure frictionless and soundless operation, allowing the bolt to rotate opposite to the door opening direction, preventing sticking and accommodating thinner doors without protruding elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fixed magnet is used to pull the bolt into the bolt housing, then the bolt can be held in position, but the bolt may stick in the bolt housing when the door is pushed during opening, especially with large door motions
Solution Approach 1:
The patent applies the dynamics principle by making the magnet movable rather than fixed. The magnet is allowed to move along with the bolt during the opening operation, which prevents the bolt from sticking in the bolt housing. This dynamic arrangement ensures that the magnetic attraction force moves synchronously with the bolt, eliminating the sticking problem that occurs with fixed magnets during large door motions.
2Adaptability or versatility
If the distance between the door and the jamb varies, then different installation conditions are encountered, but the striking plate requires complex case-specific adjustments
Solution Approach 1:
The patent applies the universality principle by designing the striking plate with a universal opening structure that can accommodate various door and jamb distances without requiring case-specific adjustments. The opening is designed to work with a range of distances, making the striking plate suitable for different installation scenarios while maintaining a simple, uniform structure.
3Ease of operation
If the bolt rotates more with great door motion, then the bolt may open, but the sticking to the magnet increases and the bolt will not open at all in the worst case
Solution Approach 1:
The patent applies the dynamics principle by allowing the magnet to move together with the bolt during rotation. This dynamic coupling ensures that the magnetic attraction force remains aligned with the bolt's motion, preventing excessive sticking even when the door undergoes large motions. The magnet-bolt system moves as a unified dynamic entity, maintaining reliable operation across various motion ranges.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The mechanism simplifies installation, ensures smooth and quiet operation, and prevents sticking, making it suitable for fire and emergency exit doors by maintaining a frictionless and nearly soundless motion while allowing locking at non-90 degree angles.
Implementation Method 1
a magnetic element 10 being freely in the opening and a magnet 9 within it
Data Source
Figure 1~5
AI summary
A bolt mechanism which comprises a rotatable locking bolt (1) arranged on a bolt axis (2) parallel with the surface of the door, in the locking position of which bolt, a locking slide (4) included in the bolt mechanism is located behind a locking surface (6) of the locking bolt (1) locking the bolt mechanism, a striking plate (11), in which there is an opening (7) and a magnetic element (10) magnetising the locking bolt (1) into the opening (7), moving in the depth and horizontal direction of the opening, a spring (5) fastened from one end to the locking bolt (1) and from the other end to a body (18), and a front shield (3). The invention has been implemented such that the magnetic element (10) is arranged to slide and rotate in front of. the locking bolt (1) as the locking bolt (1) goes into the opening (7) of the striking plate (11), that the magnetic element (10) rotates the locking bolt (1) in the opening direction of the door and that, in the open position of the bolt mechanism, the spring (5) is arranged to hold the locking bolt (1) substantially on the plane of the front shield (3) of the lock.