Compact Sliding Door Locking Device with Linear Motor
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Solution Overview
Problem
Existing sliding door systems require a significant amount of space for locking mechanisms, which is inefficient and not addressed by previous solutions that lack compact designs or direct interaction with the traction mechanism.
Innovation Solution
A compact locking device with a linear motor and a movable locking mechanism that interacts directly with the traction mechanism, utilizing a housing with separate interiors for the locking drive and mechanism, and guide roller bearings to reduce friction and force transmission, allowing for efficient locking and release.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional locking device with a toothed locking disc is used, then the door can be locked securely, but the device requires a relatively large amount of space
Solution Approach 1:
The locking device is divided into two separate interior compartments: a first housing interior containing the locking drive (linear motor) and a second housing interior containing the locking mechanism. This segmentation allows each component to be optimized independently while maintaining overall compactness, resolving the contradiction between secure locking and space efficiency.
Solution Approach 2:
The control element connected to the rotor is guided through a guide opening in the housing wall to transmit motion from the locking drive to the locking mechanism. This three-dimensional arrangement through the housing wall enables compact coupling between separated compartments, achieving space-efficient design without compromising locking reliability.
2Productivity
If the locking mechanism is directly connected to the rotor, then the locking action is direct, but friction and force transmission issues arise
Solution Approach 1:
A control element serves as an intermediary between the rotor and the locking mechanism, transmitting motion through a guide opening in the housing wall. This intermediary arrangement reduces direct friction contact while maintaining efficient force transmission, resolving the contradiction between rapid locking action and friction reduction.
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 compact and efficient locking mechanism that reduces space requirements while ensuring secure locking and easy release of the sliding door system, enhancing operational efficiency and space utilization.
Implementation Method 1
a locking drive in the form of a linear motor, with a stator and a rotor that is translationally movable relative to the stator
Implementation Method 2
a first guide roller bearing is arranged on the control element and is received in the guide opening, in particular such that a bearing ring of the first guide roller bearing, rotatable relative to the control element, can roll on an inner contour of the guide opening
Data Source
Figure 1~2a
Figure 2b~2c
Figure 3a~3b
AI summary
The invention relates to a locking device (10) for a sliding door system, comprising: - a housing (11), -- wherein a locking drive (20), in particular a linear motor, with a stator (22) and a runner (24) that is translationally movable relative to the stator (22) is arranged in a first housing interior (11.4), -- wherein a locking mechanism (30) with a locking means (13) that is movable back and forth between a release position and a locking position is arranged in a second housing interior (11.5) separated from the first housing interior (11.4) by a housing wall (17), -- and wherein the locking mechanism (30) is coupled to the locking drive (20) via at least one control element (25) which is connected to the runner (24) and passes through a guide opening (18) in the housing wall (17).