Rotatable Latchbolt Mechanism for Sliding and Hinged Doors
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Solution Overview
Problem
Existing latchbolts are limited to translational movement and are primarily suited for hinged doors, lacking reliability against external factors, ease of breakage, and inadequate theft-proofing, especially for sliding doors.
Innovation Solution
A rotatable latchbolt mechanism with an elastic element and a stop block, designed for both hinged and sliding doors, utilizing a plate-shaped structure and guiding grooves for secure rotational locking and unlocking, and a latchbolt accommodating mechanism with specific hole designs to prevent unintended door opening.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a translational latchbolt structure is used, then the structure is simple, but the reliability is poor and it can be easily broken or triggered by external factors
Solution Approach 1:
The latchbolt is changed from a translational structure to a rotatable structure that can rotate around a pin shaft. This dynamic rotation mechanism provides better control over the locking and unlocking actions, preventing unintended movements while maintaining structural simplicity. The rotational movement allows the latchbolt to engage and disengage reliably without being easily triggered by external forces.
Solution Approach 2:
The latchbolt is divided into functional segments: a rotatable body, a stop block at one end, and a guiding groove structure. The stop block prevents excessive rotation and ensures proper engagement position, while the guiding groove controls the rotation path. This segmentation improves reliability by providing clear functional zones without significantly increasing overall complexity.
2Reliability
If a translational latchbolt is used, then the structure is simple, but the theft-proofing is inadequate due to easy unusual unlocking
Solution Approach 1:
The rotational movement mechanism provides controlled and monitored unlocking actions. The rotation must follow a specific path defined by the guiding groove and stop block, making unintended or forced unlocking difficult. The rotational constraint ensures that only proper unlocking actions can disengage the latchbolt, significantly improving theft-proofing while maintaining structural simplicity.
Solution Approach 2:
The pin shaft acts as an intermediary element that controls the rotation of the latchbolt. It provides a fixed axis around which the latchbolt must rotate, preventing arbitrary movements. This intermediary structure ensures that unlocking can only occur through the proper rotational mechanism, enhancing security without adding complex locking systems.
3Adaptability or versatility
If an existing latchbolt is used for sliding doors, then compatibility is poor, but modifying it would increase complexity
Solution Approach 1:
The rotatable latchbolt design is universally applicable to both hinged doors and sliding doors. The rotational mechanism can accommodate different door types without requiring type-specific modifications. The stop block and guiding groove are designed to work with various door configurations, making this single latchbolt structure versatile enough for multiple door types while maintaining simplicity.
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 solution provides reliable rotational locking and unlocking, enhanced resistance to breakage, and improved theft-proofing by ensuring correct operation and absorbing shear forces, while minimizing wear and tear.
Implementation Method 1
an elastic element (17), wherein the rotatable latchbolt (16) is fixedly mounted on a rotatable pin shaft (163), wherein the rotatable latchbolt (16) rotates around the rotatable pin shaft (163); wherein the clastic element holds the rotatable latchbolt in an extended state
Data Source
AI summary
The present invention relates to the field of locks and relates to a latchbolt mechanisms, comprising a rotatable latchbolt (16) and an elastic element (17), wherein the rotatable latchbolt (16) is fixedly mounted on a rotatable pin shaft, round which the rotatable latchbolt rotates, and wherein the elastic element (17) holds the rotatable latchbolt (16) in an extended state. Furthermore, the present invention relates to a latchbolt accommodating mechanism, comprising an accommodating chamber (b1) and a cover plate (b2), wherein a chamber opening of the accommodating chamber is covered by the cover plate, andwherein a first through hole (b21) and a second through hole (b22) are mounted on the cover plate, wherein the stop block (162) is inserted rotatably into the first through hole (b21) and the rotatable latchbolt (16) is inserted rotatably into the second through hole (b22). Therefore, a rotational unlocking and locking is enabled and is suitable not only for hinged doors, but also for sliding doors. By a rotary movement, actions of door opening and closing are avoided in a usual case.