Electric Motor Flush Bolt with Threaded Spindle Drive
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Solution Overview
Problem
Existing flush bolts require significant manual force and pose a risk of injury during actuation, and their complex mechanical transmission makes them difficult to assemble and expensive to produce.
Innovation Solution
A flush bolt design where an electric motor directly drives a threaded spindle, translating its rotation into translational movement of the locking element, allowing for easy actuation and integration of sensors and switches for automated locking and unlocking, with the option of one or two motors and sensors for position detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual actuation of locking elements is used, then device complexity is reduced, but ease of operation deteriorates due to required force and injury risk
Solution Approach 1:
The patent replaces the manual mechanical actuation system with an electric motor system. The motor drives a threaded spindle that converts rotational motion into linear motion of the locking element, eliminating the need for manual leverage and complex mechanical linkages while improving ease of operation.
Solution Approach 2:
The threaded spindle acts as an intermediary between the electric motor and the locking element. It translates the rotational motion of the motor into the linear translational movement required for the locking element, providing a simple and effective coupling mechanism.
2Reliability
If complex mechanical transmission is used to drive locking elements, then reliability of locking is improved, but ease of manufacture deteriorates due to assembly complexity and cost
Solution Approach 1:
The locking device is divided into separate functional modules: the electric motor, the threaded spindle, the locking element, and the actuating mechanism. This segmentation allows for independent manufacturing and assembly of each component, simplifying production and reducing assembly complexity while maintaining reliable locking function.
Solution Approach 2:
The patent replaces complex mechanical transmission systems with a simpler electric motor-driven threaded spindle mechanism. This substitution reduces the number of mechanical components, simplifies assembly, and lowers manufacturing costs while ensuring reliable locking through the direct drive mechanism.
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
Enables safe and effortless operation of the flush bolt, reduces assembly complexity, and lowers production costs by eliminating the need for manual actuation and complex mechanical components.
Implementation Method 1
an electric motor is provided which drives a threaded spindle directly attached to a shaft of the electric motor
Implementation Method 2
rotation of the threaded spindle is translated into the translational movement of the locking element
Data Source
Figure 1~2
Figure 3~4
Figure 5
AI summary
A locking bolt (1) for installation in a door or window sash, comprising a strike plate (2) for fastening the locking bolt (1) to a rebate of the door or window sash and at least one locking element (3) that can be moved from a locking position to an unlocking position and back by a translational movement, characterized in that an electric motor (5) driving a threaded spindle (4) is provided for driving the at least one locking element (3), wherein the at least one locking element (3) is coupled to the threaded spindle (4) in such a way that a rotation of the threaded spindle (4) is translated into the translational movement of the locking element (3).