Pull-Out Guide Side-Mounted Retraction for Flat Drawers
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Solution Overview
Problem
Existing pull-out guides are not suitable for very flat furniture parts due to the limited design caused by the arrangement of the retraction mechanism on the body rail, which restricts the vertical extension and hence the flatness of the furniture design.
Innovation Solution
The retraction mechanism is positioned on a vertically extending wall section of the body rail, allowing the tilt slide to extend through a slot in this section, reducing the vertical extension of the pull-out guide and enabling it to accommodate flat furniture parts by relocating the retraction mechanism from above or below to the side, thus minimizing the installation space required.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the retraction mechanism is arranged above or below the body rail, then the pull-out guide can accommodate standard furniture parts, but the vertical extension becomes too large for flat furniture parts
Solution Approach 1:
The patent repositions the retraction mechanism from a vertical arrangement (above or below the body rail) to a horizontal arrangement (on the side of the body rail). This dimensional change allows the tilt slide to extend through a slot in the side wall section of the body rail, significantly reducing the vertical extension of the pull-out guide while maintaining all necessary functions.
2Length of stationary object
If the retraction mechanism is positioned on the side of the body rail, then the vertical footprint is reduced, but the slot must be arranged in a vertically extending wall section
Solution Approach 1:
The patent creates a localized vertical wall section on the side of the body rail that extends significantly beyond the normal thickness of the rail. This localized structural modification provides the necessary space for the slot and tilt slide mechanism while keeping the rest of the body rail design unchanged. The vertical wall section acts as a specialized local feature that enables the horizontal arrangement of the retraction mechanism.
3Length of stationary object
If the wall section thickness is reduced to accommodate the slot, then the vertical footprint is minimized, but the structural strength may be compromised
Solution Approach 1:
Rather than reducing the thickness of the vertical wall section, the patent extends the vertical height of the wall section while maintaining adequate thickness. The slot is arranged in this extended vertical dimension, allowing the tilt slide to move vertically within the slot without compromising the structural integrity of the wall section. This approach preserves strength by maintaining sufficient material thickness while achieving space reduction through vertical extension.
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
Pull-out guide (1) for furniture parts that can be pulled out of a furniture body and pushed back into it, in particular drawers, the pull-out guide (1) having at least one body rail (2) for fastening to the furniture body and at least one drawer rail (3) for fastening to the furniture part and at least one retraction mechanism (4) with a tilting slide (5) for retracting the drawer rail (3) in a retraction direction (6), the drawer rail (3) being displaceable in the cabinet rail (2) in the retraction direction (6) and counter to the retraction direction (6). and the tilting slide (5) reaches through a slot (7) in the carcass rail (2), the slot (7) being arranged in a wall section (8) of the carcass rail (2) which extends vertically when the pull-out guide is in an operating position.