Drawer side wall

Solution Overview

Problem

Large constructional heights in drawer designs often result in gaps between the drawer sidewall and rear wall, which are aesthetically undesirable and more pronounced at higher positions.

Innovation Solution

The holding device is inclined relative to the carrier body, with an angle greater than 85° and less than 90°, ensuring the drawer rear wall is pre-tensioned against the sidewall in a gap-free manner, and the sidewall profile includes an abutment portion with varying distances to accommodate the rear wall, allowing for a gap in the upper region while maintaining a gap-free connection in the lower region.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If the drawer rear wall is fixed perpendicular to the carrier body, then the connection is simple and easy to manufacture, but gaps are formed in the upper connecting region which are aesthetically undesirable

Engineering Contradiction:

Improvegap-free connectionVSAvoidholding device alignment

Core Design Contradiction:

Manufacturing precisionVSDevice complexity

Solution Approach 1:

The holding device is pre-aligned at an inclined angle (85°-90°) relative to the longitudinal direction of the carrier body before the drawer rear wall is fixed. This preliminary angular positioning ensures that when the drawer rear wall is installed, it automatically bears against the drawer sidewall in a gap-free manner in the upper connecting region, eliminating the need for post-installation adjustment.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The holding device is designed with a specific angular parameter (85°-90°) relative to the longitudinal direction of the carrier body. This parameter change from a standard perpendicular (90°) alignment to a slightly inclined alignment (85°-90°) enables the drawer rear wall to be pre-tensioned against the drawer sidewall, ensuring gap-free connection while maintaining ease of manufacture.

Inventive Principle:

Principle #35Parameter changes

2Shape

If the holding device is aligned perpendicular to the carrier body, then the structure is simple and stable, but gaps appear in the upper region which are disturbing for aesthetic reasons

Engineering Contradiction:

Improvegap-free appearanceVSAvoidholding device inclination

Core Design Contradiction:

ShapeVSDevice complexity

Solution Approach 1:

The holding device is designed with a specific angular parameter (85°-90°) relative to the longitudinal direction of the carrier body. This parameter change from a standard perpendicular (90°) alignment to a slightly inclined alignment (85°-90°) enables the drawer rear wall to be pre-tensioned against the drawer sidewall, ensuring gap-free connection while maintaining ease of manufacture.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The holding device is pre-aligned at an inclined angle (85°-90°) relative to the longitudinal direction of the carrier body before the drawer rear wall is fixed. This preliminary angular positioning ensures that when the drawer rear wall is installed, it automatically bears against the drawer sidewall in a gap-free manner in the upper connecting region, eliminating the need for post-installation adjustment.

Inventive Principle:

Principle #10Preliminary action

3Manufacturing precision

If the drawer rear wall is fixed with a holding device at an inclined angle, then gap-free connection is achieved, but the holding device has greater complexity compared to perpendicular alignment

Engineering Contradiction:

Improvegap-free connectionVSAvoidholding device fabrication

Core Design Contradiction:

Manufacturing precisionVSEase of manufacture

Solution Approach 1:

The holding device is designed with a specific angular parameter (85°-90°) relative to the longitudinal direction of the carrier body. This parameter change from a standard perpendicular (90°) alignment to a slightly inclined alignment (85°-90°) enables the drawer rear wall to be pre-tensioned against the drawer sidewall, ensuring gap-free connection while maintaining ease of manufacture.

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS11457738B2Drawer side wall

Publication Date: 2022.10.04 JULIUS BLUM GMBH

AI summary

A drawer sidewall includes a carrier body, a sidewall profile, and a holding device for fastening a drawer rear wall. Each of the sidewall profile and the holding device is fixed to the carrier body, and the holding device, at least in an unfixed condition of the drawer rear wall, is aligned inclined relative to a longitudinal direction of the carrier body.