Multipoint Locking Device With Segmented Control Rod

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Solution Overview

Problem

Existing locking devices for sectional openings with hinged panels are complex and costly to manufacture, and they do not efficiently manage the transition between open and closed positions without interfering with the operation of bolts.

Innovation Solution

A locking device with a master control member and a slave locking member, where the actuating rod consists of two sections, with elastic means to move the slave locking member between open and closed positions, and a trigger mechanism to arm and release the elastic means, ensuring smooth operation and locking without altering the bolt positions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the actuating rod is interrupted at the level of articulation of adjacent panels, then the locking device allows articulation of panels in open and closed positions, but the device complexity increases due to multiple rod sections and connection mechanisms

Engineering Contradiction:
Improvearticulation capabilityVSAvoidrod structure complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The actuating rod is divided into two separate sections: a first section integral with the master control member and a second section secured to the slave locking member. This segmentation allows each rod section to be independently positioned and connected, enabling the rod to accommodate panel articulation while maintaining a relatively simple overall structure.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The invention introduces an intermediary connection mechanism between the two rod sections that allows relative movement and articulation. This intermediary element mediates the motion transmission between the master control member and slave locking member while accommodating the angular changes that occur during panel articulation.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If elastic means are added to move the slave locking member between positions, then the locking functionality is improved, but the manufacturing cost and device complexity increase

Engineering Contradiction:
Improvelocking functionalityVSAvoidmanufacturing simplicity
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The elastic means are configured to automatically move the slave locking member between locked and unlocked positions without requiring additional actuators or complex control mechanisms. The elastic element stores and releases energy to perform the locking action, making the system self-sufficient and reducing manufacturing complexity.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The elastic means are pre-loaded or pre-positioned to automatically engage and disengage the locking member at the appropriate times during door operation. This preliminary action ensures reliable locking functionality while eliminating the need for complex real-time control systems.

Inventive Principle:
Principle #10Preliminary action

3Adaptability or versatility

If the control rod is interrupted at panel articulation level, then the locking device can accommodate panel movement, but the transmission of motion becomes less efficient

Engineering Contradiction:
Improvepanel movement accommodationVSAvoidmotion transmission efficiency
Core Design Contradiction:
Adaptability or versatilityVSProductivity

Solution Approach 1:

The intermediary connection between the two rod sections is designed to maintain efficient motion transmission while accommodating panel articulation. The connection mechanism minimizes friction and play, ensuring that motion from the master control member is effectively transmitted to the slave locking member despite the interruption at the articulation level.

Inventive Principle:
Principle #24Intermediary (Mediator)

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 a simple, economical, and efficient locking mechanism that maintains bolt operation integrity across positions, ensuring secure locking and unlocking of hinged panels without mechanical interference.

Implementation Method 1

comprises elastic means moving said slave locking member in a second position distinct from said first position

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 2

the elastic means is prestressed by the movement of the control rod; the elastic means is released, to move the slave locking member into said second position

Methodology Applied
Scientific EffectMechanical energy storage: Spring

Data Source

PatentEP2357303B1Multipoint locking device
Publication Date: 2017.03.22 ASSA ABLOY CATE PICARDE
  • EP2357303B1 patent drawing
  • EP2357303B1 patent drawing
  • EP2357303B1 patent drawing

AI summary

The device has a master control unit (1), and a control rod (2) controlling a slave locking unit (3), where the slave locking unit is actuated by another control rod section (2b) in a position. The slave locking unit includes elastic units (4) moving the slave locking unit in another position different from the former position. The control rod is interrupted at an articulation of adjacent panels (10, 11), and the former position corresponding to the actuation of the slave locking unit by the control rod element is opened or unlocked position of the slave locking unit. The latter position corresponding to returning of the slave locking unit by the elastic units is closed or locked position of the slave locking unit, and one of the panels is a gate.