Drawer Support Web and Drive Holder Assembly for Flush Mounting

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Solution Overview

Problem

Existing drive mechanisms for furniture drawers require significant space and complex installation, especially when mounted on the drawer bottom, which limits design flexibility and efficiency.

Innovation Solution

A compact fastening method using a support rib and holding device with integrated fastening elements that form a flush drawer bottom surface, allowing for a narrower mounting area and secure attachment without additional components.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Volume of moving object

If the drive mechanism is mounted on the drawer bottom, then the space requirement is reduced, but the mounting area becomes wider and more complex

Engineering Contradiction:
Improvespace requirementVSAvoidmounting area
Core Design Contradiction:
Volume of moving objectVSArea of stationary object

Solution Approach 1:

The patent merges the support rib (which provides structural support) with the mounting function for the drive mechanism. The support rib integrates the bearing area for the drawer bottom and the receptacle for the fastening element into a single component, eliminating the need for separate mounting brackets and reducing the overall mounting area width.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent transitions from a two-dimensional mounting approach (mounting plate on drawer bottom) to a three-dimensional approach using the support rib's vertical structure. The receptacle extends in the direction away from the drawer bottom, allowing the fastening element to engage vertically rather than requiring a wide horizontal mounting area.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Volume of moving object

If the drive mechanism is mounted on the drawer bottom, then the space requirement is reduced, but the installation becomes more complex

Engineering Contradiction:
Improvespace requirementVSAvoidinstallation complexity
Core Design Contradiction:
Volume of moving objectVSDevice complexity

Solution Approach 1:

The support rib combines multiple functions into one component: it provides structural support for the drawer bottom, contains the receptacle for fastening, and eliminates the need for separate mounting brackets. This integration simplifies the installation process by reducing the number of parts that need to be assembled.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The support rib is designed to be part of the drawer side panel assembly, meaning the structural support element and the mounting element are self-integrated. The receptacle is formed as part of the support rib structure, eliminating the need for separate mounting operations and reducing installation complexity.

Inventive Principle:
Principle #25Self-service

3Ease of manufacture

If a separate mounting bracket is used, then the mounting is simplified, but the space requirement increases

Engineering Contradiction:
Improvemounting simplicityVSAvoidspace requirement
Core Design Contradiction:
Ease of manufactureVSVolume of moving object

Solution Approach 1:

The patent eliminates the separate mounting bracket by merging its function into the support rib. The receptacle formed as part of the support rib performs the mounting function, while the support rib itself provides the structural support, reducing the overall space requirement.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The support rib serves multiple functions: it provides structural support for the drawer bottom, acts as the mounting structure for the drive mechanism, and eliminates the need for separate mounting brackets. This multi-functionality reduces the overall component count and space requirement.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentEP4275550B1Assembly of a support web for a drawer base and a holding device
Publication Date: 2026.02.04 JULIUS BLUM GMBH
  • EP4275550B1 patent drawingFigure 1
  • EP4275550B1 patent drawingFigure 2~4
  • EP4275550B1 patent drawingFigure 5

AI summary

An arrangement (1) comprising at least one support web (2) for a drawer bottom (3) of a drawer (4) and at least one holding device (5) for a drive device (6), in particular an ejection device, for driving the drawer (4) relative to a furniture body (7), wherein the at least one holding device (5) has at least one fastening element (8) with which the at least one holding device (5) can be fastened to the support web (2), the support web (2) comprises at least one receptacle (9) for the at least one fastening element (8) and adjacent to the at least one receptacle (9) at least one support area (A) for the drawer bottom (3), and the at least one fastening element (8) has a support surface (5) which, in a fastening state (BZ) in which the at least one holding device (5) is fastened to the support web (2), faces the drawer bottom (3),wherein the support surface (S) of the at least one fastening element (8) together with the at least one bearing area (A) of the support rib (2) in the fastening state (BZ) forms a substantially flat drawer bottom bearing surface (E) for the drawer bottom (3), wherein the drawer bottom bearing surface (E) can be brought flush with the drawer bottom (3) in the fastening state (BZ).