Universal Windscreen Wiper Connector with Dual Button Locking
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Solution Overview
Problem
Aftermarket windscreen wiper devices face challenges in securely and intuitively attaching to various types of oscillating arms, requiring multiple designs and increasing manufacturing and packaging costs.
Innovation Solution
A connecting device with a pivotable joint part and dual button configuration, utilizing resilient strips to securely attach and detach from bayonet-style oscillating arms without adapters, made as a monolithic piece of injection molded plastic for cost savings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple connector designs are created to accommodate different oscillating arm types, then compatibility with various arms is improved, but device complexity and manufacturing costs increase
Solution Approach 1:
The connector is designed with a single universal structure that can accommodate multiple types of oscillating arms (J-hook, eyelet, and tab types) through one integrated design rather than requiring separate connectors for each arm type
Solution Approach 2:
The connector is divided into functional segments: a base portion that interfaces with the wiper blade, a joint portion that pivots, and a hook portion that engages with different arm types, allowing each segment to be optimized for its specific function while maintaining overall compatibility
2Reliability
If a secure locking mechanism is implemented to ensure reliable attachment, then connection reliability is improved, but ease of operation deteriorates due to complex attachment and detachment procedures
Solution Approach 1:
The connector incorporates a dynamic pivoting joint that allows the hook portion to rotate and snap into place during attachment, and can be easily released by applying force to detach, providing both secure connection and easy operation
Solution Approach 2:
The connector features self-aligning and self-locking characteristics where the pivoting joint automatically guides the hook into the correct position and secures it through a snapping action without requiring precise manual alignment, while still allowing easy manual release
3Adaptability or versatility
If multiple connector designs are produced for different arm types, then compatibility is improved, but manufacturing costs and packaging requirements increase
Solution Approach 1:
A single universal connector design replaces the need for multiple specialized connectors, allowing manufacturers to produce one standard component that works with all common oscillating arm types, thereby reducing manufacturing complexity and inventory requirements
Solution Approach 2:
The connector integrates multiple attachment capabilities (J-hook engagement, eyelet fitting, tab connection) into one unified structure, combining the functions of what would traditionally require separate connector designs into a single manufacturable component
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables secure and easy attachment and detachment of windscreen wiper devices to different oscillating arm sizes, reducing manufacturing and packaging costs through a single design that accommodates multiple arm sizes, enhancing user convenience and reducing product variability.
Implementation Method 1
The resilient strips bias the first and second buttons into raised positions wherein the buttons project above the top wall. The resilient strips also allow the first and second buttons to move to a pressed position wherein a top surface of the first or second button is generally flush with the top wall.
Data Source
AI summary
The windscreen wiper device includes a wiper element and a least one carrier element. The wiper device also includes a connecting device, which includes a base and a joint part. The joint part has a top wall that extends in a lateral direction between a pair of side walls. The joint part also has a button configuration for lockingly attaching the connecting device with at least two different types of oscillating wiper arms. The button configuration includes first and second buttons, each of which is attached with the side walls via resilient strips. The resilient strips extend directly from the side walls to the buttons. The resilient strips bias the buttons into raised positions wherein the buttons project above the top walls. The resilient strips also allow the buttons to move to a pressed position wherein a top surface of the respective button is generally flush with the top wall.