Handle Surface Structure for Grip and Vibration Damping
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Solution Overview
Problem
Existing surface structures for working devices, such as handles, fail to provide a secure grip while allowing multiple holding positions and effectively reducing vibration transmission.
Innovation Solution
A surface structure featuring distinct grip areas with elements of varying heights and shapes aligned on a dot matrix, where the centers of different elements are strategically positioned to optimize grip security and vibration absorption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a uniform pattern of raised parts is applied over the entire gripping surface, then the surface provides consistent grip texture, but the grip adhesion is not optimal when the handle is wet and fingers slide off
Solution Approach 1:
The patent applies different raised part configurations to different zones of the gripping surface. The first grip area has raised parts with first heights arranged in a first pattern, while the second grip area has raised parts with second heights arranged in a second pattern. This local differentiation optimizes grip adhesion in each specific zone, preventing finger slippage while maintaining comfortable contact.
Solution Approach 2:
The gripping surface is divided into multiple distinct grip areas (first grip area and second grip area) with different raised part configurations. This segmentation allows each zone to serve specific gripping functions, with some areas optimized for initial contact and others for secure holding, thereby improving overall grip reliability.
2Reliability
If a handle is designed with acupressure features adapted to fit the inner surface of the hand, then the handle provides a secure grip in a particular position, but it becomes difficult to grasp when held differently
Solution Approach 1:
The handle surface incorporates multiple grip areas with different raised part patterns that can accommodate various holding positions. The first grip area with its specific pattern serves one gripping style, while the second grip area with a different pattern serves another gripping style. This multi-functionality allows the handle to be securely grasped in multiple different positions, enhancing adaptability.
Solution Approach 2:
Different regions of the handle surface are given different tactile properties through varied raised part configurations. The first grip area has raised parts suited for one type of finger placement, while the second grip area has raised parts suited for another type. This local differentiation ensures secure grip regardless of which grip style the user employs.
3Reliability
If a harder plastic material is used for the handle surface with protruding knobs, then the knobs provide security to the grasping hand, but the larger hard plastic surface transmits significant vibration
Solution Approach 1:
The handle surface uses harder plastic material with raised parts only in specific grip areas where gripping security is needed. The raised parts in the first and second grip areas provide tactile feedback and secure contact points. The remaining surface areas use softer material that absorbs vibrations, thereby reducing harmful vibration transmission to the user's hand while maintaining grasping security at the contact points.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The surface structure ensures a secure and comfortable grip across various holding positions while minimizing vibration transmission, offering improved ergonomics and usability.
Implementation Method 1
The surface structure ensures a good gripping of the surface; in particular, the structure is suitable for use as the surface of a handle
Implementation Method 2
this surface structure is intended to transmit vibrations of the working device only to a limited extent
Data Source
AI summary
The present invention relates to a surface structure for a working device. In particular, the invention relates to a surface structure for a working device that has at least one first element with a first height and a second element with a second height, and a third element having a third height, wherein the second height is greater than the third height, having in addition a first grip area, a second grip area, and a third grip area, wherein the elements are arranged on a dot matrix, wherein the centers of the second elements and the centers of the third elements are arranged on the points of intersection and the centers of the first elements are not arranged on the points of intersection, and the first grip area comprises first elements and second elements, the second grip area comprises predominantly second elements, the third grip area comprises predominantly third elements. The present invention also relates to a working device having such a surface structure.