Sliding Door Trolley Adjustment Bracket with Inverted Cam Mechanism
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Solution Overview
Problem
Existing support and adjustment devices for sliding doors are limited in their ability to adjust the height of sliding doors made of materials other than wood, particularly glass, and often require access to the internal compartment, making adjustments difficult and uncomfortable, especially in small cabinets.
Innovation Solution
A support and adjustment device featuring a support bracket shaped like an overturned L with a horizontal slide and tappet-cam coupling to a vertical stem, allowing for height adjustment without accessing the internal compartment, and a case with a U-section compartment to securely mount the device on various door types, including glass doors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the adjustment means are disposed on the back wall of the sliding door, then the height adjustment function is provided, but the operator is forced to access the internal compartment of the cabinet which is extremely difficult and uncomfortable in case of small cabinets
Solution Approach 1:
The adjustment mechanism is inverted from the conventional configuration by moving the adjustment means from the back wall to the front vertical edge of the door. The support bracket is L-shaped with the adjustment means accessible from the front, allowing operators to adjust door height without accessing the internal cabinet compartment. This inversion fundamentally changes the accessibility paradigm while maintaining the height adjustment function.
2Adaptability or versatility
If the support plate must be fixed directly on the panel by means of screws, then the device can be mounted on wooden doors, but it cannot be used on glass doors where no screws can be used
Solution Approach 1:
The support bracket is designed as a universal mounting device that can accommodate multiple door materials and types. The L-shaped bracket with horizontal and vertical wings provides versatile attachment options - the horizontal wing can be mounted on wooden doors using screws while the vertical wing provides support for glass doors. This multi-functional design eliminates the need for material-specific mounting solutions.
3Shape
If the guide tracks of the trolley are required to be very close to the upper edge of the panel, then the aesthetic appearance is improved, but the support plate cannot be spaced from the track to allow the operator to screw the fixing screws
Solution Approach 1:
The support bracket utilizes the vertical dimension by extending the vertical wing downward from the horizontal wing that is positioned near the upper edge of the door. This dimensional extension provides clearance space below the track level, allowing fixing screws to be accessed and installed from the front or bottom, thereby resolving the conflict between track positioning aesthetics and manufacturing accessibility.
4Adaptability or versatility
If the carriages are fixed to the panel by means of plates, then the door can be hung, but the carriages cannot be inserted in a track that is premounted on a secondary frame of the door
Solution Approach 1:
The L-shaped support bracket is pre-assembled with the carriage frame before installation. The horizontal wing of the bracket is designed to interface with premounted tracks on secondary frames, allowing the entire assembly to be installed as a unit. This preliminary configuration eliminates the need for complex post-installation adjustments and accommodates premounted track systems.
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 easy and comfortable height adjustment of sliding doors without accessing the internal compartment and allows the device to be mounted on any material type, including glass, providing a versatile solution for different door applications.
Implementation Method 1
a threaded bar (6) with horizontal axis engaged with the slide with screw-female screw coupling means, in such manner that the rotation of said threaded bar (6) corresponds to a translation of the slide (2)
Implementation Method 2
tappet-cam type coupling means (4, 3d) to a vertical stem (3) with one end constrained to a trolley (C)
Data Source
Figure 1
Figure 2
Figure 3
AI summary
Support and adjustment device (A) of a trolley (C) for sliding doors or panels (P) comprising a support bracket (1) for a trolley (C) that is shaped as an overturned L, and a horizontal slide (2) coupled, by means of tapper-cam type coupling means (CP) with a stem (3) constrained in the upper part to the trolley (C); wherein said slide (2) is associated with a threaded bar (6) with horizontal axis, provided with a maneuvering head (6a) contained inside a housing (7) obtained on the support bracket (1) in such manner that a rotation of said threaded bar corresponds to a translation of the slide (2).