Windshield Wiper Arm Holder for Parking Stability and Access
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Solution Overview
Problem
Existing windshield wiper devices on heavy-duty vehicles are limited by grab handles, which restrict space and obstruct visibility, making it difficult to access and maintain the windshield without additional handles.
Innovation Solution
A vehicle windshield wiper device with an articulated structure and a rigid arm holder that prevents pivoting in the parking position, allowing the arm to be used as a handle for access, and optionally featuring an electrically controlled actuator for enhanced functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If grab handles are attached on truck front below windshield to help access windshield, then ease of operation is improved, but device complexity increases and space available for wiper device is reduced
Solution Approach 1:
The wiper arm is designed to serve dual purposes: its primary function of wiping the windshield and a secondary function as a grab handle for accessing the windshield. By making the wiper arm itself grabbable or providing a handling section on it, the invention eliminates the need for separate grab handles, thus reducing device complexity while maintaining ease of operation.
2Ease of operation
If wiper arm is made pivotable for wiping movement, then ease of operation is improved, but reliability deteriorates when arm needs to stay fixed in parking position
Solution Approach 1:
The wiper arm is designed with dynamic characteristics, being pivotable during operation for wiping movement but capable of being restrained in a fixed parking position. The handling section or grabbable feature allows the arm to be manually held in the desired position, providing dynamic adaptability between mobile wiping function and stable parking function.
Solution Approach 2:
The handling section acts as an intermediary element between the user and the wiper arm. By providing a specific section on the arm that can be grabbed, it mediates between the need for the arm to be pivotable for wiping and the need for it to stay fixed in parking position, allowing manual control to maintain stability when needed.
Data Source
Figure 1
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AI summary
The invention relates to Vehicle windshield wiper device (2) comprising an articulated structure (22, 23) and a blade (20), articulated structure (22, 23) comprises an arm (22) transmitting mechanical forces to blade (20), arm (22) is mounted on an axle (23) to provide an arm rotational movement corresponding to wiping movement, arm (22) is pivotably attached to the axle (23), windshield wiper device (2) also comprising an arm holder (3) restraining arm from pivoting when blade (20) is in parking position.