Pull-out guide for a drawer and method for aligning a drawer on a pull-out guide
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Solution Overview
Problem
Existing pull-out guides for drawers require multiple adjustment elements for height and lateral adjustments, leading to a complex design with numerous components, making alignment and adjustment cumbersome.
Innovation Solution
A compact pull-out guide with a single adjusting element, such as an axially adjustable spindle, that can perform both height and lateral adjustments, utilizing a threaded sleeve and a resilient projection for self-locking and elastic movement, allowing for simplified alignment and reduced component count.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If multiple adjustment elements are used for height and lateral adjustments, then precise positioning of the drawer is achieved, but the device complexity increases with numerous components
Solution Approach 1:
The patent combines height adjustment and lateral adjustment functions into a single adjusting element (the drawer front). By making the drawer front itself adjustable in both vertical and lateral directions, the design eliminates the need for separate adjustment mechanisms, thereby reducing component count while maintaining precise positioning capability
Solution Approach 2:
The drawer front is designed to serve multiple functions: it acts as both the visible front panel of the drawer and the adjustment mechanism. The drawer front can be independently positioned vertically and laterally, making it a multi-functional element that replaces what would traditionally require separate dedicated adjustment devices
2Manufacturing precision
If multiple adjustment elements are provided for height and lateral adjustments, then accurate alignment of the drawer is achieved, but the adjustment process becomes cumbersome and time-consuming
Solution Approach 1:
By merging height and lateral adjustment capabilities into the single drawer front element, the user only needs to manipulate one component rather than coordinating multiple separate adjustment mechanisms. This simplifies the adjustment process while maintaining the ability to achieve precise alignment in both vertical and lateral directions
3Adaptability or versatility
If multiple adjustment elements and components are used, then comprehensive adjustment capability is achieved, but the overall size of the guide system increases
Solution Approach 1:
The drawer front is designed as a multi-functional adjustment element that provides both vertical and lateral adjustment capabilities within its own structure. This eliminates the need for additional external adjustment components that would increase the overall volume of the guide system, while still achieving comprehensive adjustment capability
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 precise and efficient alignment of drawers with a reduced number of components, simplifying the adjustment process and achieving a compact design while maintaining precise positioning.
Implementation Method 1
The adjusting element (20) comprises a head section (21) that projects from the holder (11). The holder (11) includes an upper U-shaped section (18) with a bearing opening (19) into which a cylindrical section (22) of the adjusting element (20) is inserted. A cylindrical section (23) with a smaller diameter adjoins the cylindrical section (22) with a larger diameter.
Implementation Method 2
a projection (30) that can be inserted into a receptacle (9) on the drawer (1). The projection (30) is made of bent wire, in particular spring steel wire, which is elastically bendable.
Data Source
Figure 1
Figure 2
Figure 3A
AI summary
A pull-out guide (6) for a drawer (1) comprises a guide rail that can be secured to a carcass and a running rail (7) that is displaceable relative to the guide rail, between which at least one central rail (8) which extends the pull-out length is optionally provided, wherein on the running rail (7) a holding device (10) is provided for fixing a drawer, said holding device having a projection (30) that can be inserted into a recess (9) on the drawer (1), wherein on the holding device (10) a vertical adjustment and a horizontal adjustment are provided for changing the position of the drawer (1) relative to the running rail, wherein an adjustment element (20) is provided by means of which a vertical adjustment and a horizontal adjustment can be carried out.