Connection fitting
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Solution Overview
Problem
Existing furniture part connection arrangements risk damaging either the connection fitting or the furniture part during assembly due to stress on the screw-in thread, which can compromise the stability of the connection.
Innovation Solution
A connection fitting with a screw-in thread that is axially adjacent to the main body and features a tool holder accessible through an opening, allowing direct force application to the thread, reducing stress on the main body and enabling precise alignment without damaging the connection fitting or furniture part.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a thread is arranged on the insert part for screwing it into the furniture part, then the connection fitting can be fixed to the furniture part, but the screw-in operation may damage either the insert part or the furniture part, compromising connection stability
Solution Approach 1:
The connection fitting is divided into two functional parts: the main body (insert part) and the screw-in thread, which are arranged axially adjacent to each other. The screw-in thread is designed as a separate component that can be screwed into the furniture part without rotating the main body, thereby preventing damage to both the insert part and the furniture part while ensuring reliable connection.
2Ease of manufacture
If the insert part is made shorter to allow main body rotation during screwing, then the screwing operation becomes possible, but the main body may collide with the furniture part wall, causing damage
Solution Approach 1:
The connection fitting is segmented into the main body and the screw-in thread positioned axially adjacent to it. This segmentation enables the screw-in thread to engage with the furniture part while the main body remains stationary or rotates minimally, preventing collision with the furniture part wall.
Solution Approach 2:
The screw-in thread acts as an intermediary element between the main body and the furniture part. It transfers the screwing force and engagement function away from the main body, allowing the main body to maintain its length and position without risking collision during the screwing operation.
3Ease of manufacture
If the main body is kept short to enable rotation during screwing, then the screwing operation can proceed, but material is wasted and the fixing element receptacle may not be properly accommodated
Solution Approach 1:
By segmenting the connection fitting into the main body and the axially adjacent screw-in thread, the main body can be optimized for its primary function of accommodating the fixing element receptacle without being constrained by the screwing operation requirements. The screw-in thread handles the screwing function, allowing the main body to be sufficiently long to properly accommodate the receptacle without material waste.
Data Source
AI summary
A connection fitting for insertion into a receptacle of a first furniture part in an insertion direction, having a main body having an opening for receiving a connection element, in particular a bolt, which can be connected to a second furniture part, the main body having a fixing element for fixing the connection element in the main body, the connection fitting having a screw-in thread which axially adjoins the main body in the insertion direction and has a first tool holder which is accessible through the opening and is spaced apart from the opening in the insertion direction. A furniture part connection arrangement including the connection fitting and a screw tool for assembling the connection fitting also are disclosed.