Tool Chest Drawer Guide Layout for Full Pull-Out
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Solution Overview
Problem
Existing tool chests of drawers face difficulties in completely pulling out large tools due to the design of the guides, which complicates tool insertion and removal, and the use of telescopic guides increases construction complexity and costs.
Innovation Solution
The design incorporates a housing for sliding devices near the front edges of the uprights, allowing complete drawer extension without telescopic guides, maintaining a simple structure and using bent sheet metal for all parts, including an inward-bent edge on the upper panel for safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a simple guide design is used, then the construction is simple and cost-effective, but the drawer cannot be pulled out completely
Solution Approach 1:
The guide structure is extended in the longitudinal dimension by positioning the bearing at the rear edge of the drawer and the slide at the front edge, creating a guide path that spans the entire drawer length. This dimensional extension allows the drawer to be pulled out completely while maintaining a simple two-component guide structure without telescopic mechanisms.
2Ease of operation
If telescopic guides are used, then the drawer can be pulled out completely, but the construction complexity increases
Solution Approach 1:
The telescopic portion is extracted from the guide structure and replaced by directly positioning the bearing and slide at opposite ends of the drawer. This extraction eliminates the need for telescopic mechanisms while achieving the same functional result of complete drawer extension, thereby reducing construction complexity.
Solution Approach 2:
The guide function is segmented into two independent components: a bearing fixed to the upright and a slide fixed to the drawer. These segmented components work together through their spatial arrangement rather than through mechanical telescopic connection, simplifying the overall structure while maintaining full pull-out capability.
3Reliability
If the bearing abuts against the slide, then the drawer is prevented from coming off the guides, but the drawer cannot be pulled out completely
Solution Approach 1:
The bearing and slide are positioned at opposite ends of the drawer in the longitudinal dimension, with the bearing at the rear edge and the slide at the front edge. This dimensional arrangement allows the drawer to extend fully while the bearing and slide maintain their guiding function without interfering with each other's movement.
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
This solution enables easy and complete removal and insertion of tools while keeping the chest of drawers construction simple and cost-effective, preventing entanglement with workshop tools and reducing production complexity.
Implementation Method 1
each bearing has a rotation axis perpendicular to the upright and slides over a rail fastened to an outside sidewall of the drawer
Implementation Method 2
the aforesaid slide abuts against the bearing when the drawer is in the pull-out configuration, so as to prevent the drawer from coming off the guides
Implementation Method 3
each drawer is movable along a respective pair of guides
Data Source
AI summary
A chest of drawers includes a frame (2) comprising two uprights (3) facing each other, each upright having a front edge (3c); at least one drawer (6) associated with the uprights and having a front portion (6f); the drawer is also sliding with respect to the uprights between a closed configuration in which it is housed between the uprights and a pull-out configuration in which it projects with respect to the front edge of the uprights; at least one guide (9) connected to an inside surface (3a) of one of the uprights and comprising a sliding device (10) rotatably fastened to the upright and associated with the drawer to make it movable along the guide; the sliding device is located on said upright near the front edge; the drawer has a housing at the front portion to accommodate the sliding device when the drawer is in the closed configuration.