Pre-assembled Sliding Door Trolley Support with Integrated Fastening
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Solution Overview
Problem
Existing support and adjustment devices for sliding doors require assembly operations and the use of traditional tools, and typically consist of multiple parts, leading to increased production and assembly costs.
Innovation Solution
A pre-assembled trolley support device with a plate that incorporates a stem and fast-fixing means, allowing rapid attachment to the sliding door's internal wall without screws or tools, featuring a reduced number of parts and enabling assembly-free installation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If traditional assembly operations and multiple parts are used, then the device can be assembled and fixed, but the production and assembly costs increase and installation time increases
Solution Approach 1:
The patent combines multiple separate components (plate, box body, stem, fastening elements) into a single integrated pre-assembled unit. The support plate incorporates the box body, stem, and fastening means as one unified structure that is factory-assembled and sealed, eliminating the need for on-site assembly operations and reducing the number of parts the operator must handle during installation.
Solution Approach 2:
The device is pre-assembled and pre-fastened in the factory before delivery to the installation site. The plate is pre-equipped with integrated fastening means (such as expansion anchors, clip connectors, or snap-fit mechanisms) that are already positioned and secured, so that during installation the operator only needs to attach the pre-assembled unit to the door frame without performing any assembly operations.
2Reliability
If traditional tools and assembly operations are required, then the device can be securely fixed, but the installation time and complexity increase
Solution Approach 1:
The pre-assembled device incorporates self-fastening mechanisms that enable the operator to secure the trolley to the door frame without requiring external tools. The integrated fastening means (such as expansion anchors that self-expand in concrete, clip connectors that snap into place, or snap-fit mechanisms) perform the fastening function automatically when installed, eliminating the need for screwdrivers, wrenches, or other assembly tools.
Solution Approach 2:
The device is designed as a modular pre-assembled unit with the plate, box body, stem, and fastening means segmented into a single integrated component that can be handled and installed as one unit. This segmentation allows the complex assembly to be manufactured separately in the factory and then installed as a complete functional unit, reducing on-site installation time.
3Adaptability or versatility
If multiple parts are provided, then the device can be assembled, but the production and assembly costs increase
Solution Approach 1:
The pre-assembled plate integrates multiple functions into a single component: it provides the mounting surface for the trolley, incorporates the box body for housing, includes the stem for height adjustment, and integrates the fastening means for attachment to the door frame. This multi-functionality eliminates the need for separate parts for each function, reducing the total number of parts while maintaining assembly flexibility.
Data Source
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AI summary
The invention relates to a support and adjustment device of a trolley for sliding doors, which comprises a trolley (C) pre-assembled to the support plate (1), which incorporating, in one piece, a box body (2) crossed by a window (4) and a through hole (3) with vertical axis, wherein a stem (5) is inserted to provide connection between the trolley (C) and the plate (1), which incorporates screw anchors (6) for fast-fixing on the internal wall of the sliding door (P).