Wiper Accessory Seat Assembly Without Riveting Deformation

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Solution Overview

Problem

The existing wiper structure's connection method using riveting is complex, time-consuming, and prone to deformation, leading to poor assembly quality and cleaning performance.

Innovation Solution

The wiper accessory seat is designed with a recess and symmetrically arranged first and second fixing portions, allowing metal elastic sheets to be connected using third fixing portions, eliminating the need for riveting and simplifying the assembly process.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If riveting is used to connect the accessory seat and metal elastic sheet, then the connection strength is improved, but the assembly complexity and time increase

Engineering Contradiction:

Improveconnection strengthVSAvoidassembly complexity

Core Design Contradiction:

StrengthVSDevice complexity

Solution Approach 1:

The patent replaces the traditional riveting mechanical connection system with a snap-fit mechanical system. The U-shaped clamping structure with elastic deformation capability provides strong connection through elastic force rather than mechanical fastening, thereby eliminating the need for rivets and reducing assembly complexity while maintaining connection strength.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent utilizes elastic deformation parameters of the U-shaped clamping structure to achieve the connection. By designing the clamping structure with specific elastic properties, it can deform during assembly to engage with the metal elastic sheet and then maintain a strong connection through its elastic recovery, providing both strong bonding and simple assembly.

Inventive Principle:

Principle #35Parameter changes

2Strength

If riveting is used to connect the accessory seat and metal elastic sheet, then the connection strength is improved, but the assembly time increases

Engineering Contradiction:

Improveconnection strengthVSAvoidassembly time

Core Design Contradiction:

StrengthVSLoss of time

Solution Approach 1:

The patent replaces the time-consuming riveting process with a rapid snap-fit mechanism. The U-shaped clamping structure can be installed by simple insertion and elastic deformation, eliminating the need for drilling, inserting rivets, and securing them, thereby dramatically reducing assembly time while maintaining connection strength through elastic force.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The U-shaped clamping structure is pre-designed with elastic deformation capability and appropriate dimensions, allowing it to automatically engage and secure the metal elastic sheet upon insertion. This preliminary design of the elastic properties enables the connection to be established in one action without requiring multiple assembly steps or additional fastening operations.

Inventive Principle:

Principle #10Preliminary action

3Strength

If riveting is used to connect the accessory seat and metal elastic sheet, then the connection strength is improved, but the risk of deformation increases

Engineering Contradiction:

Improveconnection strengthVSAvoiddeformation control

Core Design Contradiction:

StrengthVSManufacturing precision

Solution Approach 1:

The patent replaces the riveting system that causes deformation through mechanical force and heat with an elastic snap-fit system. The U-shaped clamping structure uses controlled elastic deformation to achieve connection without applying excessive localized force or heat that could deform the accessory seat or metal elastic sheet, thereby maintaining manufacturing precision while ensuring connection strength.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The clamping structure is designed with elastic properties that allow it to absorb and distribute assembly forces evenly. This elastic cushioning effect prevents localized stress concentrations that could cause deformation during assembly, while still providing sufficient connection strength through the elastic recovery force of the deformed structure.

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

Data Source

PatentUS11760311B1Assembling structure of wiper accessory seat

Publication Date: 2023.09.19 DANYANG UPC AUTO PARTS

AI summary

An assembling structure of wiper accessory seat includes an accessory seat and metal elastic sheets. The bottom portion of the accessory seat is formed with a recess, first fixing portions and second fixing portions. The first fixing portions and the second fixing portions are symmetrically disposed on two opposite sides of the recess and arranged spacedly in an upper-bottom manner. The metal elastic sheets are disposed with third fixing portions, separately inserted between the first fixing portions and the second fixing portions, and connected to the bottom portion of the accessory seat by the third fixing portions being positioned on the first fixing portions and the second fixing portions being positioned on the metal elastic sheets so as to simplify the assembling structure.