Clamp-On Squeegee Washer for Stable No-Disassembly Attachment

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Solution Overview

Problem

Existing removable washers for squeegees require disassembly of the squeegee to attach, which is inconvenient.

Innovation Solution

A removable washer design that includes a clamping mechanism with oppositely disposed portions and a fastening mechanism to securely attach to the flat portion of the squeegee handle without disassembly, using extensions and engagement features to stabilize the attachment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the washer is designed to be removable, then the ease of operation is improved, but the attachment stability deteriorates

Engineering Contradiction:

Improveease of attachmentVSAvoidattachment stability

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The clamping portions are designed to be movable relative to each other, allowing the washer to transition between an attached state (when clamping the handle) and a removable state (when released). This dynamic mechanism enables easy attachment and detachment while maintaining stable attachment during use, resolving the contradiction between ease of operation and attachment stability.

Inventive Principle:

Principle #15Dynamics

2Productivity

If the washer is attached without disassembling the squeegee, then the productivity is improved, but the device complexity increases

Engineering Contradiction:

Improveattachment efficiencyVSAvoidattachment mechanism complexity

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The attachment mechanism is segmented into independent clamping portions that can operate separately on the handle. Each clamping portion can independently clamp the handle, allowing the washer to be attached without disassembling the squeegee. This segmentation simplifies the attachment process while maintaining structural integrity, resolving the contradiction between productivity and device complexity.

Inventive Principle:

Principle #1Segmentation

3Reliability

If the clamping force is increased to prevent displacement, then the attachment stability is improved, but the ease of operation deteriorates

Engineering Contradiction:

Improvedisplacement preventionVSAvoidattachment difficulty

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The engagement portions act as intermediaries between the clamping portions and the handle. These engagement portions engage with corresponding features on the handle to provide additional stabilization, allowing the clamping portions to maintain adequate clamping force without excessive tightness. This intermediary mechanism prevents large displacements while keeping the attachment process easy to operate.

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentUS10178929B2Removable washer

Publication Date: 2019.01.15 MASAHIRO TAKAKI

AI summary

This invention provides a removable washer that is attachable to a squeegee without dissembling the squeegee. A removable washer is removably attachable to a squeegee including a channel attached to a flat portion at a distal end of a handle. The removable washer includes a main body including an impregnation body, and an attachment portion that allows the main body to be removably attached to the handle of the squeegee. The attachment portion includes a clamping portion that removably clamps the flat portion of the handle of the squeegee.