Wiper System Pre-Fixing Means for Assembly
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Solution Overview
Problem
Existing wiper systems for motor vehicles require separate holding devices for assembly, especially when using horizontal fastening screws, making the installation process costly and labor-intensive.
Innovation Solution
A wiper system designed with pre-fixing means that form a positive connection with the vehicle body or a component, allowing for form-fitting assembly without separate holding devices, using hook elements and centering screws for precise positioning and final fixation with horizontal fastening means.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If fixing screws extending in the horizontal direction are used, then the wiper system can be finally fixed securely, but separate holding devices are required during assembly increasing cost and complexity
Solution Approach 1:
The patent applies preliminary action by providing pre-fixing means (protrusions) on the wiper system that temporarily engage with recesses in the fastening plate before final screw fixation. This preliminary engagement positions the wiper system correctly and holds it in place during assembly, eliminating the need for separate holding devices while maintaining secure final fixation with horizontal screws
2Manufacturing precision
If separate holding devices are used during assembly, then the wiper system can be positioned accurately, but the installation process becomes more expensive and labor-intensive
Solution Approach 1:
The patent merges the positioning and holding functions into the wiper system itself through integrated pre-fixing means (protrusions). These protrusions are formed as part of the wiper system structure, combining the functions of positioning aids and holding devices into a single integrated feature, thereby achieving accurate positioning without requiring separate holding devices
3Ease of operation
If the wiper system lies on body parts during assembly, then no holding devices are needed, but this approach is only suitable for vertically oriented fixing screws and limits design flexibility
Solution Approach 1:
The patent applies universality by designing pre-fixing means (protrusions) that work with both vertical and horizontal fixing screw configurations. The protrusions engage with recesses in the fastening plate to provide temporary support and positioning, making the assembly process equally easy for both vertical and horizontal screw orientations, thereby expanding design flexibility
Data Source
Figure 1~2
Figure 3~4
AI summary
The invention relates to a wiper system (1) for installation in a motor vehicle, having at least one drive motor and at least one wiper shaft (4) driven by the drive motor. According to the invention, pre-fixing means (15) are provided on the wiper system (1), by means of which a positive connection can be established to the motor vehicle chassis and/or to a component (9) fixed on the motor vehicle chassis.