Grommet Insertion Guide Channel for Wiper Nozzle Centering
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Solution Overview
Problem
Existing devices for inserting grommets into wiper device fastening openings lack efficiency and stability, often causing damage and requiring excessive force due to the absence of proper guidance and centering mechanisms.
Innovation Solution
A device featuring a guide element with a guide channel, holder, and conically tapering area for easy insertion, combined with a slider and cover for centering and deformation, which facilitates the insertion of grommets into wiper device fastening openings while preventing damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a simple slider is used to push the grommet into the opening, then the device structure remains simple, but the grommet insertion lacks control and may cause damage
Solution Approach 1:
A guide element is introduced as an intermediary component between the slider and the grommet. This guide element includes a guide channel that receives the grommet and directs it into the fastening opening, providing controlled guidance while the slider simply pushes along the guide channel. This resolves the contradiction by adding control functionality without requiring the slider itself to be complex.
Solution Approach 2:
The device is segmented into distinct functional components: a slider for applying pushing force, a guide element for directional control, and a guide channel for grommet routing. This segmentation allows each component to perform its specific function optimally - the slider provides force while the guide element provides control - without either component needing to be overly complex.
2Productivity
If excessive force is applied to insert the grommet, then insertion speed increases, but damage to the grommet or fastening opening occurs
Solution Approach 1:
The guide element acts as a mediator that distributes and controls the insertion force. The guide channel provides a controlled path that gradually directs the grommet into the fastening opening, preventing sudden force application that could cause damage. This allows for faster insertion speeds while maintaining control over the force applied to the grommet.
Solution Approach 2:
The guide element is positioned beforehand to receive and guide the grommet. By having the guide channel in place prior to insertion, the system prepares a controlled path that cushions and manages the insertion process, preventing excessive force from directly impacting the grommet or fastening opening.
3Manufacturing precision
If proper guidance and centering mechanisms are added, then insertion precision improves, but device complexity increases
Solution Approach 1:
The guide element serves as a simple intermediary structure that provides both guidance and centering functionality. The guide channel's geometry naturally centers the grommet as it is pushed through, eliminating the need for complex active centering mechanisms. This achieves high insertion precision with minimal added complexity.
4Ease of operation
If no guide channel is provided, then the device structure remains simple, but the grommet cannot be guided into the fastening opening
Solution Approach 1:
The guide element is introduced as a simple intermediary structure that provides the necessary guidance functionality. The guide channel within this element creates a defined path for the grommet to follow into the fastening opening, enabling easy operation without requiring complex active guidance systems.
Data Source
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AI summary
The invention relates to a device (60) for inserting a nozzle (58) into a mounting opening (56) of a wiper device (10), and to a method for inserting a nozzle (58) into a wiper device (10) by means of such a device (60). The device (60) for inserting a nozzle (58) into a mounting opening (56) of a wiper device (10) comprises a slide (62) for inserting the nozzle (58) into the mounting opening (56) of the wiper device (10) and is characterized by a guide element (64) which has a guide channel (66) for guiding the nozzle (58) when inserting it into the mounting opening (56).