Razor Protector Guiding Member Handle Alignment

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Solution Overview

Problem

Conventional protectors for shaving razors often fail to guide the handle correctly during attachment, leading to potential damage and safety issues due to incorrect orientation and improper attachment methods.

Innovation Solution

A protector with a housing and guiding member that includes a front wall with an outer flap and bumps, and a side wall forming an angle with the upper wall, facilitating correct handle orientation and attachment by forming a path for the handle to follow, ensuring proper alignment and preventing accidental detachment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a conventional protector without guiding members is used, then the structure is simple and manufacturing is easy, but the handle cannot be attached correctly leading to damage and safety issues

Engineering Contradiction:

Improvecorrect attachment of handle to cartridgeVSAvoidstructure of protector

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The guiding members (front wall and side wall) are pre-formed as integral parts of the protector housing, creating a predetermined attachment path before the handle is attached. This preliminary structural configuration guides the handle into the correct orientation and position during attachment, ensuring reliable connection without requiring complex assembly steps or additional components.

Inventive Principle:

Principle #10Preliminary action

2Ease of operation

If a protector with guiding members is used, then the handle attachment is guided correctly, but the device complexity increases

Engineering Contradiction:

Improveattachment process of handle to cartridgeVSAvoidstructure of protector

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The guiding members (front wall and side wall) are merged into a single integral structure with the protector housing, formed as one piece during manufacturing. This consolidation provides the guiding function while avoiding the complexity of separate movable guiding components, maintaining manufacturing simplicity while achieving ease of operation during handle attachment.

Inventive Principle:

Principle #5Merging (Combining)

3Reliability

If the guiding member extends significantly over the handle, then the guidance function is enhanced, but the protector becomes bulky and difficult to store

Engineering Contradiction:

Improveguidance accuracy during attachmentVSAvoidsize of protector

Core Design Contradiction:

ReliabilityVSVolume of moving object

Solution Approach 1:

The guiding members (front wall and side wall) are positioned locally at the critical attachment interface where guidance is most needed, rather than extending uniformly throughout the entire protector structure. This localized guidance approach provides sufficient attachment reliability while minimizing the overall volume and maintaining a compact protector design for easy storage.

Inventive Principle:

Principle #3Local quality

Data Source

PatentUS10493644B2Razor system

Publication Date: 2019.12.03 BIC VIOLEX SA

AI summary

A protector (40) for a shaving razor (10) including a handle (12) removably attached to a cartridge (22). The protector (40) includes a housing (42) for receiving and protecting the cartridge (22). The housing (42) includes a bottom wall (43), an upper wall (44) and lateral walls (45, 46, 47, 48), the upper wall (44) being provided with a first opening (49) for receiving the handle (12), and the protector (40) further including a guiding member (50) for guiding the handle (12) toward the cartridge (22) when the handle (12) is being attached to the cartridge (22).