Electric Shaver Grip Connecting Section Design
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Solution Overview
Problem
Conventional electric shavers have a slippery design that makes them prone to dropping and struggle to press the blade section firmly onto the skin due to their configuration, leading to a less-rugged surface and inadequate grip.
Innovation Solution
The electric shaver features a grip unit with a protruded connecting section at the top that supports the head unit from underneath, allowing for a firmer grip and easier pressing of the blade section onto the skin, while also incorporating swing mechanisms and a tilted plane to reduce height and prevent blade deformation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If the head unit is connected in an extension of the center axial line of the grip unit with a curved upper portion, then the front-to-rear thickness of the electric shaver is reduced, but the grip becomes slippery and the blade section cannot be pressed firmly onto the skin
Solution Approach 1:
The invention divides the grip unit into two distinct parts: a rod-shaped grip unit for holding and a separate connecting section that protrudes rearward. This segmentation allows the grip unit to maintain its simple rod shape for stable gripping while the additional connecting section provides structural support to press the blade firmly onto the skin, resolving the contradiction between compact thickness and operational stability.
Solution Approach 2:
The connecting section protrudes in the rearward direction (another dimension) from the grip unit, creating a three-dimensional structure that adds functional capability without increasing the front-to-rear thickness. This dimensional extension allows the blade to be pressed firmly onto the skin while maintaining a compact overall profile.
2Device complexity
If the head unit is connected in an extension of the center axial line of the grip unit, then the structure is simple, but the electric shaver is prone to dropping due to slippery surface
Solution Approach 1:
By segmenting the structure into a simple rod-shaped grip unit and a separate connecting section, the invention maintains structural simplicity while adding anti-dropping capability. The connecting section acts as an additional support element that prevents the shaver from slipping out of the hand without complicating the overall design.
Solution Approach 2:
The connecting section serves as an intermediary element between the grip unit and the head unit, providing both structural connection and enhanced grip stability. It mediates between the simple rod-shaped grip and the functional requirements of preventing drops and enabling firm blade pressing.
3Length of stationary object
If the connecting section protrudes toward the rear face side, then the total height is reduced for downsizing, but the head unit swing range is constrained
Solution Approach 1:
The connecting section protrudes in the rearward dimension, allowing the head unit to swing in front-to-rear and side-to-side directions without increasing the total height. This dimensional arrangement enables multi-directional swing capability while maintaining a compact vertical profile, resolving the contradiction between downsizing and adaptability.
Data Source
Figure 1
Figure 2
Figure 3A~3C
AI summary
An electric shaver includes a grip unit capable of being held in one hand, a head unit supported above the grip unit, a blade section provided in the head unit and having an outer blade and an inner blade for shaving, and a connecting section provided at a top of the grip unit and protruded toward a rear face side of the grip unit. The head unit is provided on the connecting section. According to the electric shaver, the grip unit can be held firmly in one hand and the blade section can be pressed onto a skin firmly.