Locking Device Adjustment Mechanism for Wing Door Alignment
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Solution Overview
Problem
Manufacturing and assembly clearances can cause alignment shifts between passage holes in the opening and bores in the housing, leading to stresses in locking devices when attaching the handle to the lock case, affecting the proper sliding of the rod within the opening.
Innovation Solution
A locking device with a mechanism that includes a nut and adjustment bore system, allowing for the adjustment of the lock case's position to align passage orifices and fixing bores, ensuring the rod can slide smoothly along the opening without mechanical stress, using a slider and nut with complementary hexagonal shapes to facilitate precise alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the handle housing is fixed to the housing by screws passing through the opening, then the housing is fixed relative to the opening, but manufacturing tolerances cause alignment shifts between passage holes and bores, creating stresses in the locking device
Solution Approach 1:
The invention introduces an adjustment mechanism that allows the position of the rod relative to the mechanism to be varied. By changing the positional parameter of the rod through adjustment means (such as adjustment screws or movable mounting), the system can compensate for alignment errors caused by manufacturing tolerances, thereby eliminating stresses while maintaining secure fixation
Solution Approach 2:
The invention introduces adjustment means as an intermediary element between the rod and the mechanism. This intermediary component absorbs the misalignment caused by manufacturing tolerances, allowing the passage holes and bores to remain in their fixed positions while the adjustment mechanism compensates for the dimensional discrepancies
2Measurement precision
If the rod is fixed rigidly to the mechanism, then the positioning is precise, but any misalignment creates stresses that affect the sliding operation of the rod
Solution Approach 1:
The invention transforms the rigid fixed connection between the rod and mechanism into a dynamic adjustable connection. The adjustment means allow the rod's position to be modified, enabling the system to adapt to alignment variations while maintaining precise positioning when properly adjusted, thus ensuring smooth sliding operation without stresses
Data Source
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AI summary
The device has a rod that is moved translationally along a post (2) of an opening in response to an action exerted on a handle (4) whose casing (88) is fixed on the post, where the translation of the rod is controlled by the action of a built-in lock housing (6) embedded in the post. Fastening bolts and adjustment borings are provided within the lock housing to cooperate with fixing members of the rod, so as to adjust the relative positions of a mounting member of the lock housing and the fixing members of the rod. USE : Locking device for locking a door against a fixed frame. ADVANTAGE : The fastening bolts and the adjustment borings are provided within the lock housing to cooperate with fixing members of the rod, so as to adjust the relative positions of the mounting member of the lock housing and the fixing members of the rod, thus enabling fixing of the rod and the casing of the handle by taking into account the tolerances of manufacturing and assembly. DESCRIPTION OF DRAWINGS : The drawing shows a three quarter perspective view of a locking device associated with a post of an opening and a handle partially cut to leave an outline of a lock housing integrated in the opening. 2 : Post 4 : Handle 6 : Lock housing 88 : Casing of handle 90 : Fastening screw.