Roll Guide Decelerator With Hook Cursor for Drawer Assembly
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Solution Overview
Problem
Existing roll guide deceleration devices for sliding units like drawers are complex to assemble, require multiple storage types, and often necessitate additional components such as welded parts, making them impractical for immediate assembly during furniture construction.
Innovation Solution
A roll guide deceleration device integrated into the guide itself, featuring a fixed portion constrained to the furniture frame and a movable portion with a wheel acting as an actuator, utilizing a slidingly guided hook cursor and a decelerating damping cylinder, which can be assembled post-characterization of the furniture, eliminating the need for separate storage and welded components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a deceleration device is integrated into the roll guide, then assembly is simplified and storage needs are reduced, but the guide structure becomes more complex
Solution Approach 1:
The deceleration device is merged with the roll guide by integrating the fixed portion into the guide's longitudinal flap and the movable portion into the guide's body. The wheel acts as both a guide component and the actuator for the deceleration mechanism, eliminating the need for separate assembly steps and reducing storage requirements for multiple component types.
Solution Approach 2:
The wheel in the movable portion serves dual functions: it guides the drawer along the track and simultaneously acts as the actuator that triggers the deceleration mechanism. This multi-functionality reduces the number of separate components needed, simplifying assembly while maintaining guide functionality.
2Adaptability or versatility
If the deceleration device is assembled post-characterization, then adaptability to different furniture configurations is improved, but assembly timing becomes less controlled
Solution Approach 1:
The deceleration device is segmented into a fixed portion that can be attached to the guide during manufacturing, and a movable portion with the wheel that can be assembled later. This segmentation allows the guide to be characterized and tested independently, then adapted to different furniture configurations by adding the deceleration components as needed.
Solution Approach 2:
The fixed portion of the deceleration device is pre-integrated into the guide structure during manufacturing, preparing it for later assembly with the movable portion. This preliminary action ensures the guide is ready for deceleration functionality while allowing flexibility in when the complete assembly occurs.
3Manufacturing precision
If standard guides are used without welded parts, then manufacturing precision is improved, but the deceleration mechanism cannot be implemented
Solution Approach 1:
The wheel acts as an intermediary component that enables the deceleration mechanism without requiring welded parts. Instead of welding an iron blade to the movable guide, the wheel engages with the fixed portion's hook cursor through a sliding connection, maintaining manufacturing precision while enabling the deceleration function.
Solution Approach 2:
The welded iron blade mechanism is replaced with a mechanical engagement system using the wheel and hook cursor. The wheel's rotation and engagement with the hook cursor provide the deceleration action without requiring permanent welding connections, preserving manufacturing precision while implementing the deceleration function.
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
The solution simplifies assembly, reduces storage needs, and integrates deceleration functionality without altering the guide's resistance or functionality, allowing for cost-effective production and invisible positioning within the furniture.
Implementation Method 1
a buffer for the piston (25) of a decelerating damping cylinder (26) integral with the plate (17)
Implementation Method 2
Ends of a spiral spring (30), which cooperates in bringing the slide (23) to a closed-drawer position
Data Source
Figure 1~2
Figure 3~4
Figure 5
AI summary
A deceleration device (11) for roll guides of sliding units, such as drawers or the like, wherein said roll guides comprise a first fixed portion (12) of the guide, constrained to a piece of furniture, and a second movable portion (13) of the guide, constrained to a drawer, wherein the first fixed portion (12) of the guide has a first straight section (14) followed by a final shaped section (15) in which a wheel (16) is positioned, constrained to the end of the second movable portion (13) of the guide, when the drawer is completely closed. The device (11) comprises a plate (17), constrained to the piece of furniture by means of a screw and carrying a decelerating damping cylinder (26) whose piston (25) interacts with a buffer (24) integral with a hook cursor (19), in turn cooperating with the wheel (16) and sliding on the plate (17), elastic elements (30) being envisaged, which oppose the action of the decelerating damping cylinder (26), the hook cursor (19) having a limited run inside a slit (20) situated in the first fixed portion (12) of the guide.