Sliding Door Bogie Guiding Assembly for Sealing
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Solution Overview
Problem
Conventional sliding door arrangements face challenges in achieving a balance between sufficient sealing and easy movement, as standard drive units are not dimensioned to provide the necessary force for the complex motion required during closing, leading to increased friction and the need for additional actuators, which complicates the system and increases costs.
Innovation Solution
A guiding assembly comprising a bogie with steering members and a guiding rail that allows the sliding door leaf to pivot, enabling efficient sealing by moving the door downwards and inwards during closure, reducing the complexity and cost of the door operating assembly by eliminating the need for additional actuators.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the sealing is made tighter to improve sealing effect, then the sealing performance is improved, but the friction increases and movement becomes difficult
Solution Approach 1:
The patent introduces a vertical dimension to the door closing motion. The door leaf transitions from purely horizontal movement to a three-dimensional motion that includes downward movement. This dimensional change allows the door to achieve tight sealing contact with the ground and frame while the guiding assembly manages the complex motion path, preventing excessive friction buildup that would occur with purely horizontal tight sealing.
Solution Approach 2:
The guiding assembly incorporates dynamic elements including a bogie that can pivot and rollers that adapt to the door's weight and sealing requirements. This dynamic configuration allows the system to automatically adjust the contact pressure and motion path based on real-time conditions, achieving effective sealing without requiring excessive force that would create problematic friction.
2Device complexity
If standard drive units are used, then the system remains simple, but they cannot provide sufficient force for the complex motion during closing
Solution Approach 1:
The guiding assembly uses a dynamic bogie mechanism with pivoting capability and adaptive rollers that respond to the door's weight and motion requirements. This dynamic design allows standard drive units to effectively manage the complex three-dimensional closing motion without requiring additional actuators, as the guiding assembly itself adapts to distribute and manage the forces involved.
Solution Approach 2:
The guiding assembly acts as an intermediary mechanism between the standard drive unit and the door leaf. It translates the simple horizontal pulling force from the drive unit into the complex three-dimensional closing motion required for effective sealing, eliminating the need for the drive unit itself to be overly complex or powerful.
3Force
If additional actuators are added to provide sufficient force, then the required force is achieved, but the system becomes more complex and costly
Solution Approach 1:
The guiding assembly is designed to be self-regulating and self-adjusting. The bogie automatically pivots and the rollers adapt to the door's weight and sealing requirements without requiring additional actuators or control systems. The system uses the door's own weight and the guiding geometry to manage the forces required for opening and closing, making additional actuators unnecessary.
Solution Approach 2:
The guiding assembly performs multiple functions simultaneously: it guides the door's three-dimensional motion, manages sealing contact forces, and enables standard drive units to effectively operate the door. This multi-functionality eliminates the need for separate actuators dedicated to specific force requirements, simplifying the overall drive assembly.
Data Source
AI summary
A guiding assembly (300) for guiding a sliding door leaf (101) movable along a sliding door rail (110) is provided. The guiding assembly (300) comprises a bogie (130) having a first end (132) being provided with a first steering member (136) and a second steering member (138), and an opposite end (134) comprising at least one guiding element (122) being engaged with the sliding door rail (110), wherein the bogie (130) is connected to the sliding door leaf (101). The guiding assembly (300) further comprises a guiding rail (140) having first end section (140a) and a second end section (140b). The bogie (130) is configured to pivot relative the sliding door leaf (101) as the second steering member (138) travels along the guiding rail (140).