Windscreen Wiper Connection Interface Lever Mechanism
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Solution Overview
Problem
Existing windscreen wiper systems face challenges in correctly aligning the connection interface during assembly, leading to potential leaks and difficulty in rotating the wiper freely, especially due to the lack of visibility and intuitive operation in changing the wiper's service position.
Innovation Solution
A windscreen wiper system assembly featuring a lever that can be rotated to transition between working and service positions, with visible and accessible stud and housing configurations, and locking mechanisms to ensure proper alignment and secure attachment, allowing for easy mounting and disassembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the connection interface is retained inside the wiper holder in service position, then the alignment is secured and leaks are prevented, but the mounting operation becomes difficult since it is not visible to the user
Solution Approach 1:
An intermediate piece known as a lever is introduced as a mediator between the connection interface and the wiper holder. This lever has a first part that retains the connection interface and a second part that is accessible from outside the wiper holder, allowing the user to operate it visually while the first part performs the retention function internally.
Solution Approach 2:
The lever extends from the internal service position into an external accessible dimension. The second part of the lever protrudes from the wiper holder, creating a new spatial dimension that allows visual access and manual operation while maintaining the internal retention function.
2Ease of operation
If the connection interface is made accessible for visual operation, then the mounting ease is improved, but the retention and alignment security may be compromised
Solution Approach 1:
The lever is divided into two distinct parts: a first part that remains inside the wiper holder to retain the connection interface, and a second part that extends outside for visual access and operation. This segmentation allows each part to fulfill its specific function optimally.
Solution Approach 2:
The lever acts as an intermediary mechanism that transfers the user's external operation into internal retention action. The lever's pivoting motion translates the external manual operation into the internal engagement/disengagement of the connection interface.
3Reliability
If the connection interface is retained in service position, then leaks are prevented, but the wiper's rotational freedom in working position may be limited
Solution Approach 1:
The lever is designed to be dynamic, pivoting between a locked position (retaining the connection interface in service position) and an unlocked position (allowing rotational freedom in working position). This dynamic behavior allows the system to adapt between retention and freedom requirements.
Solution Approach 2:
The lever creates a copied retention mechanism that can be selectively engaged or disengaged. When not in use, the lever can be positioned to allow full rotational freedom, while copying the retention function only when needed in service position.
Data Source
AI summary
The invention relates to an assembly for producing a vehicle windscreen wiper system, comprising an end piece (12) of a wiper holder, said wiper holder being intended to move a wiper (14), a connection interface (20) and an intermediate piece (30), said assembly being able to take up a working position in which said interface (20) is free with respect to said end piece (12) and a service position in which said interface (20) is retained in an oriented manner with respect to said end piece (12) by said intermediate piece (30).The invention also relates to a connecting device for a vehicle windscreen wiper system, comprising the assembly as above, a connector (40) intended to be fixed to said wiper (14) and an adapter (50) for attaching the connector (40) to said wiper holder.The invention also relates to a vehicle windscreen wiper system.