Drawer Rail-Integrated Actuator for Single-Drawer Locking in Cabinets
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Solution Overview
Problem
Existing locking systems for cabinets with drawers require multiple parts, leading to increased production complexity, packaging volume, and user installation challenges, while failing to prevent simultaneous drawer opening which can cause tipping and safety hazards.
Innovation Solution
A locking arrangement where the actuator is integrated with the drawer rail, allowing intuitive and automatic installation, reducing parts and packaging, and ensuring only one drawer can be opened at a time, with the actuator being part of the drawer rail for seamless integration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If traditional locking systems with multiple separate parts are used, then the locking function is achieved, but the production complexity, packaging volume, and installation difficulty increase
Solution Approach 1:
The actuator is merged with the drawer rail to form an integrated component. The actuator body is received within the drawer rail structure, eliminating the need for separate mounting brackets and fasteners. This integration reduces the total part count while maintaining the locking function, directly addressing the contradiction between ease of manufacture and device complexity
Solution Approach 2:
The drawer rail serves multiple functions: it provides the locking actuator housing, the moving drawer support, and the connection interface to the cabinet. By making the drawer rail multi-functional, the patent eliminates the need for separate mounting components, reducing production complexity and packaging requirements while maintaining effective locking capability
2Loss of substance
If multiple separate components are used for the locking system, then the locking function is achieved, but the packaging volume and transportation space increase
Solution Approach 1:
The actuator and drawer rail are combined into a single integrated assembly that can be packaged together as one unit. This eliminates the need for separate packaging of mounting brackets, fasteners, and the actuator itself, directly reducing packaging material usage and transportation space while maintaining the complete locking function
Solution Approach 2:
The actuator body is nested within the drawer rail structure, with the actuator received inside the drawer rail's internal cavity. This nesting arrangement allows the actuator to be packaged within the drawer rail's footprint, eliminating additional packaging volume that would be required for separate components
3Ease of operation
If traditional locking systems are used, then the locking function is achieved, but the user installation and understanding become challenging
Solution Approach 1:
The actuator and drawer rail are merged into a single pre-assembled unit that requires no additional mounting steps. The drawer rail is designed to be directly attached to the cabinet with the actuator already in place, eliminating the need for users to install separate mounting brackets and align multiple components, thereby simplifying installation while maintaining the locking function
Solution Approach 2:
The drawer rail is designed with self-aligning features and pre-configured actuator positioning that allow the component to self-assemble during installation. The actuator automatically positions itself within the drawer rail structure, reducing the need for precise manual alignment and complex installation procedures, making the system easier for users to install while maintaining effective locking capability
4Ease of manufacture
If projecting pins are added to drawer side walls, then the locking function is achieved, but the packing volume and production article numbers increase
Solution Approach 1:
The locking actuator is merged with the drawer rail structure, eliminating the need for projecting pins on drawer side walls. The actuator is received within the drawer rail's internal cavity, allowing drawers of various heights to use the same rail design without requiring height-specific pin configurations, thereby reducing production article numbers and improving stock keeping efficiency while maintaining the locking function
Solution Approach 2:
The locking mechanism is extracted from the drawer body and relocated to the drawer rail assembly. By removing the projecting pins from the drawer side walls and integrating the actuator into the rail, the patent eliminates the need for drawer-specific locking features, allowing standardized drawer production across different heights while maintaining effective locking capability through the rail-based actuator system
Data Source
AI summary
A locking arrangement for a plurality of drawers in a cabinet may include (i) a drawer support arrangement associated with an associated drawer, (ii) a drawer locking arrangement, and (iii) an actuator associated with the associated drawer. The drawer support arrangement may include a drawer rail attached to the associated drawer and a guiding rail attached to the cabinet. The drawer rail may be movably received in the guiding rail such that the associated drawer is movable into and out of the cabinet. The drawer locking arrangement may include a plurality of locking members each configured to engage a respective drawer and that selectively allow only one drawer to be opened at a time. The actuator may include a driver configured to interact with an associated locking member that is associated with the associated drawer. The actuator may be supported by the drawer rail.