Integrated Lock Fitting Probe and Member

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Solution Overview

Problem

Existing locking fittings for doors and windows face challenges in adjusting the position of locking members and control sensors to ensure proper operation, leading to incorrect manipulation and misoperation, as these adjustments require simultaneous intervention by the operator on both locking members and control sensors, and the control sensor's position can be misaligned, preventing the locking mechanism from functioning correctly.

Innovation Solution

A locking fitting with a control mechanism that integrates the control probe with the locking member, using position adjustment means to adjust the locking member's length and the control sensor's position simultaneously, featuring a movable retaining casing and adjustable retaining means to maintain the locking member in the unlocked position until the door or window is closed, ensuring secure and correct operation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If the control sensor and locking member are adjusted separately, then the positioning precision can be improved, but the device complexity and ease of operation deteriorate due to requiring simultaneous intervention on multiple components

Engineering Contradiction:

Improvepositioning precisionVSAvoidadjustment complexity

Core Design Contradiction:

Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent combines the control sensor and locking member into a single integrated assembly where the control sensor is fixed to the locking member. This integration allows both components to be adjusted simultaneously as one unit, eliminating the complexity of separate adjustments while maintaining positioning precision through the unified adjustment mechanism.

Inventive Principle:

Principle #5Merging (Combining)

2Manufacturing precision

If the control sensor and locking member are adjusted separately, then the positioning precision can be improved, but the ease of operation deteriorates due to requiring simultaneous intervention on multiple components

Engineering Contradiction:

Improvepositioning precisionVSAvoidadjustment ease

Core Design Contradiction:

Manufacturing precisionVSEase of operation

Solution Approach 1:

Inventive Principle:

Principle #5Merging (Combining)

3Device complexity

If the control sensor position is not synchronized with the locking member, then the device complexity is reduced, but the reliability deteriorates due to misalignment and incorrect manipulation

Engineering Contradiction:

Improveadjustment complexityVSAvoidoperational reliability

Core Design Contradiction:

Device complexityVSReliability

Solution Approach 1:

The patent combines the control sensor and locking member into a single integrated assembly where the control sensor is fixed to the locking member. This integration ensures they move together as one unit, guaranteeing synchronized positioning and eliminating misalignment issues that could cause operational failures or incorrect manipulation.

Inventive Principle:

Principle #5Merging (Combining)

4Ease of operation

If the locking member can be pushed back freely, then the ease of operation is improved, but the reliability deteriorates due to premature locking before the door or window is closed

Engineering Contradiction:

Improvelocking operation easeVSAvoidanti-misoperation reliability

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The patent implements an anti-misoperation device that prevents the locking member from being pushed back into the locked position when the door or window is open. The control sensor detects the open position and blocks the locking action, thereby preventing premature locking while still allowing normal locking operation when the door or window is properly closed.

Inventive Principle:

Principle #9Preliminary anti-action

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

This solution simplifies and secures the adjustment process for locking fittings by integrating the control probe with the locking member, ensuring that the locking member remains in the unlocked position until the door or window is closed, preventing premature locking and enhancing operational security.

Implementation Method 1

a movable control sensor, against the action of elastic return means, between an active locking position and an unlocking position

Methodology Applied

Scientific EffectElastic force: Elasticity

Data Source

PatentEP3208408B1Lock fitting for sliding wing

Publication Date: 2019.04.10 FERCO

Figure 1~4
Figure 5

AI summary

The invention relates to a locking fitting (1) for a door (2), window or similar, comprising a control mechanism (7) for pushing at least one locking member (8) intended to cooperate with a strike plate (12) into the unlocked position (9), and to which are associated position adjustment means (22), this control mechanism (7) further comprising an anti-mishandling device (13) provided with a movable control probe (14), against the action of elastic return means (15), between an active locking position (16) and an unlocking position (17), this anti-mishandling device (13) further comprising means (18) for retaining at least one locking member (8) in the unlocked position (9) when the control probe (14) is in the active locking position (16).According to the invention, said control probe (14) is made to move together with a locking member (8) under the impulse of the position adjustment means (22) of the latter, in particular when the control probe (14) is in the active locking position (16).