Sliding Door Locking Rail with Damping Actuation
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Solution Overview
Problem
Existing sliding door support systems, particularly for sliding glass doors, face challenges in locking mechanisms as the door leaf often fails to reach the limiting device completely, preventing the lock from engaging due to the bolt being blocked, leading to operational errors and aesthetic issues with visible locks.
Innovation Solution
A sliding door support system with a damping device that drives the door leaf against the limiting device to ensure complete closure and maintain contact, allowing for a locking process, featuring a lock device with a bolt and bolt contact surface where the bolt is movable relative to the contact surface, and an elastic locking part that can deform to facilitate locking even if the bolt is operated prematurely.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a conventional lock is arranged on the side edge of the door leaf, then the locking function is achieved, but the lock is visible and aesthetically unfavorable
Solution Approach 1:
The locking function is extracted from the door leaf and transferred to the running rail system. The bolt is integrated into the running rail rather than being mounted on the door leaf edge, making the lock invisible from the exterior while maintaining the aesthetic appearance of the glass door.
Solution Approach 2:
The locking mechanism is merged with the running rail structure. The bolt, bolt contact surface, and limiting device are all integrated components of the running rail system, creating a unified structure that serves both guiding and locking functions.
2Ease of operation
If the door leaf is allowed to stop before reaching the limiting device, then the door can close freely, but the bolt cannot engage with the bolt contact surface preventing locking
Solution Approach 1:
The damper device is configured to initiate its retraction function before the door leaf reaches the limiting device. This preliminary action ensures that the door leaf is actively driven into the limiting device at the correct moment, guaranteeing proper alignment between the bolt and bolt contact surface for reliable locking.
Solution Approach 2:
The damper device provides feedback control by monitoring the door leaf's position and velocity. When the door approaches the limiting device, the damper activates to decelerate and then drive the door into the limiting device, ensuring precise positioning for locking engagement.
3Manufacturing precision
If the damper device drives the door leaf against the limiting device with high force, then the end position is ensured, but impact within the damper occurs
Solution Approach 1:
The limiting device is positioned to engage with the carriage before the damper device completes its stroke. This preliminary engagement provides a mechanical stop that prevents excessive compression of the damper spring, avoiding impact damage while still ensuring the door leaf reaches the precise end position for locking.
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
Ensures reliable locking of the sliding door by maintaining the end position and allowing the locking process to occur, preventing operational errors and providing an aesthetically favorable solution by integrating the lock within the running rail, enabling secure closure without additional adjustments.
Implementation Method 1
a spring in the damping device may not be fully relaxed when the track or door leaf reaches its end position; instead, the spring continues to exert force on the track or door leaf
Implementation Method 2
a damper device with a retraction function (the damper device initially decelerates the carriage or door leaf during closing)
Data Source
Figure 1
Figure 2~4
Figure 5
AI summary
In a support system (1) for a sliding door with a track (10), with at least one carriage (12) for guiding a door leaf (100) of the sliding door, with a damper device (20) with a retraction function, wherein the damper device (20) first decelerates the door leaf (100) when closing and then drives it towards an end position, and with a limiting device that limits the travel path of the door leaf (100), it is provided that the support system (1) has a locking device (40) by means of which the door leaf can be locked in the end position by means of a locking process, and that the locking device (40) has a bolt (44) and a bolt contact surface (49), wherein during the locking process the bolt (44) is movable relative to the bolt contact surface (49) to form a lock.wherein the damping device (20) drives the door leaf (100) towards the limiting device (34) to reach the end position and holds it in contact with the limiting device (34) to maintain the end position during the closing process.