Pull-Out Guide Horizontal Fastening for Retrofitting Drive Elements
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Solution Overview
Problem
Existing extension guides for movable furniture parts pose difficulties in retrofitting entrainment members, especially when space is limited, as the process often requires complex disassembly and reassembly to access the rail for fastening.
Innovation Solution
The extension guide allows for a fastening movement primarily in a horizontal plane, enabling easy attachment of the entrainment member to the rail without height movement, using a combination of connecting parts and a pivot axis for a stable, friction-type connection, allowing for easy retrofitting even on the lowest extension guides.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the extension guide is pre-mounted to the furniture carcass, then the furniture assembly is complete and functional, but the entrainment member becomes difficult to reach for retrofitting
Solution Approach 1:
The patent changes the dimension of the fastening movement from vertical to horizontal. The entrainment member is fastened to the rail by moving horizontally along the rail's length rather than vertically toward or away from the furniture carcass. This dimensional change allows retrofitting to be performed from the side of the extension guide, making the entrainment member accessible even when the extension guide is pre-mounted to the furniture carcass.
2Reliability
If vertical movement is required for fastening, then secure attachment can be achieved, but space requirements increase making retrofitting difficult
Solution Approach 1:
The patent transitions the fastening movement from the vertical dimension to the horizontal dimension. The entrainment member attaches to the rail by sliding horizontally along the rail rather than moving vertically. This eliminates the need for vertical clearance space during the fastening process, enabling retrofitting in confined spaces where the extension guide is already mounted close to or against the furniture carcass.
Solution Approach 2:
The fastening process is segmented into two independent stages: first, horizontal movement of the entrainment member along the rail to engage the connecting parts, and second, vertical locking to secure the attachment. This segmentation allows the horizontal fastening movement to occur in confined spaces without requiring vertical clearance, while still achieving secure attachment through the subsequent vertical locking stage.
3Ease of operation
If complex disassembly is required for retrofitting, then access to the rail can be obtained, but installation time and complexity increase
Solution Approach 1:
By enabling horizontal fastening movement, the patent allows the entrainment member to be attached to the rail from the side of the extension guide without requiring disassembly of the extension guide from the furniture carcass. The horizontal movement path provides direct access to the rail's connecting surfaces, eliminating the need for complex disassembly procedures and significantly reducing installation time.
Data Source
AI summary
The invention relates to a pull-out guide for a movable furniture part, including at least one rail horizontal in the installed position, and a drive element for a drive device for the movable furniture part, and the drive element can be fastened on the rail, in particular detachably fastened. The driver element can be brought from a release position in a fixing position with the rail by a fastening movement of the drive element, the fastening movement being carried out in the horizontal plane.