Contoured Shaving Handle With Bulges and Grooves for Reliable Grip
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Solution Overview
Problem
Existing shaving razors have unreliable grips due to their small size and awkward shape, leading to difficulty in maintaining control during shaving, which increases the risk of lacerations and scarring.
Innovation Solution
A shaving apparatus with an elongated handle featuring multiple bulges, a connector finger piece, and a flat paddle, along with strategically placed gaps and gripping elements, designed to contour to the user's hand for a secure grip, allowing for various hand positions and adaptability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the shaving handle is made small and compact, then it is easier to store and handle, but the grip becomes unreliable and control is lost
Solution Approach 1:
The handle is segmented into multiple distinct regions including a head portion, a connector finger piece with grooves, and a tail portion with divots. These segmented features create multiple contact points for fingers, allowing reliable grip without increasing overall handle volume excessively.
Solution Approach 2:
Different regions of the handle have different local qualities - the connector finger piece has grooves for finger insertion, the tail portion has divots for thumb placement, and the head portion has a flattened surface. These localized features provide specific grip points that improve control without requiring a larger overall handle size.
2Ease of manufacture
If the handle design is simplified, then manufacturing is easier, but the grip reliability and adaptability to different hand positions deteriorates
Solution Approach 1:
The handle incorporates curved and contoured surfaces including a connector finger piece with circumferential grooves and a tail portion with divots. These curved features guide finger placement and adapt to different hand shapes, improving grip reliability while remaining manufacturable through standard molding processes.
Solution Approach 2:
The handle design serves multiple functions: the connector finger piece provides both structural connection and grip guidance through grooves, the tail portion provides both balance and thumb placement through divots, and the overall elongated shape accommodates different hand sizes and shaving techniques. This multi-functionality achieves reliable grip without requiring separate components.
3Reliability
If the handle is made longer, then grip reliability improves, but the overall device size and storage convenience worsens
Solution Approach 1:
Instead of simply extending the handle length linearly, the design adds dimensional complexity through three-dimensional features such as circumferential grooves in the connector finger piece and divots in the tail portion. These features utilize the radial and surface dimensions to create multiple grip points, achieving reliable grip without excessive linear length increase.
Data Source
AI summary
A shaving apparatus is provided with divots bulges and grooves gaps for a slip proof grip is disclosed. Precise divots, bulges and grooves gaps on the handle of the shaving apparatus contour to the hand and fingers in a variety of reliable positions adjusting to one's personal shaving technique.