Electric motor-powered furniture drive
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Solution Overview
Problem
Existing electromotor furniture drives face complexity in assembling the standpipe to the housing, requiring separate flange manufacturing and intricate screw connections, leading to increased production costs and assembly effort.
Innovation Solution
The design features a housing with a breakthrough for the standpipe insertion, utilizing a clamping ring with cross-locks that securely fasten the standpipe within the housing, allowing for easy assembly and reduced additional effort, with a two-part housing setup and a clamping ring made from plastic around a metal standpipe for enhanced stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a flange is manufactured separately and connected to the standpipe by welding or riveting, then the standpipe can be securely attached to the housing, but the manufacturing complexity and assembly effort increase significantly
Solution Approach 1:
The flange is integrated directly into the standpipe as a single piece, eliminating the need for separate manufacturing and joining operations. The standpipe with integrated flange is inserted through the housing opening and secured with simple fastening elements, reducing assembly steps while maintaining attachment reliability
Solution Approach 2:
The housing is divided into two separate parts: the housing body and the flangeless standpipe assembly. This segmentation allows the standpipe to be manufactured as a simple profile tube without complex flange attachments, while the housing structure provides the mounting interface, thereby simplifying standpipe manufacturing and reducing overall assembly complexity
2Strength
If bolting the flange to the housing is used to secure the standpipe, then the connection strength is improved, but the assembly process becomes more complex and time-consuming
Solution Approach 1:
The standpipe assembly is designed to be self-securing through the housing structure. The standpipe with integrated flange inserts through the housing opening and is retained by the housing geometry itself, eliminating the need for additional bolting operations while maintaining connection strength through the integrated design
3Stability of the object's composition
If nested housings are used to surround the motor and standpipe, then the structural integrity is improved, but the assembly process becomes more complicated
Solution Approach 1:
The housing is segmented into two functional parts: the housing body that provides structural support and the standpipe assembly that provides mechanical function. This segmentation eliminates the need for nested housings while maintaining structural integrity through the integrated standpipe-flange design and simple fastening mechanism
Data Source
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AI summary
The invention relates to an electric motor-powered furniture drive comprising a housing (10) on which a drive motor (20) and a support tube (31) is fastened, a lifting spindle (52) being arranged in the support tube (31), and an output shaft (22) of the drive motor (20) being coupled to the lifting spindle (52) by way of a transmission system arranged in the housing (10). The electric motor-powered furniture drive is characterised in that the housing (10) has an opening into which the support tube (31) is inserted laterally in a positively locking manner, and in that the support tube (31) has at least one transverse groove (315) introduced into an outer wall, a locking element being provided which engages in the at least one transverse groove (315) and which is held in a recess in the housing (10).