Tapered Anti-Slip Socket for Multi-Size Fastener Grip

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Solution Overview

Problem

General sockets often cause damage and deformation of fasteners due to insufficient contact and are limited to accommodating a single size, failing to meet the needs of assembling and disassembling fasteners of various sizes.

Innovation Solution

An anti-slip socket design featuring a tapered driving hole with varying diameters and anti-slip units, including engaging grooves and spacing slots, allowing for engagement with fasteners of different sizes and enhancing the gripping effect.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a general socket with a fixed inner diameter is used, then the socket structure is simple, but it can only accommodate a single size of fastener and causes damage to fasteners due to insufficient contact

Engineering Contradiction:

Improveability to accommodate fasteners of various sizesVSAvoidsocket structure complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The socket hole diameter is designed to be variable rather than fixed. The elastic deformation unit allows the socket hole diameter to dynamically adjust based on the size of the fastener being gripped, enabling the same socket to accommodate fasteners of various sizes while maintaining optimal contact pressure

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The invention changes the physical parameter of the socket hole diameter from a fixed value to a variable value. By incorporating the elastic deformation unit, the socket hole diameter can change according to the fastener size, resolving the contradiction between versatility and structural simplicity

Inventive Principle:

Principle #35Parameter changes

2Ease of operation

If the socket hole inner diameter is slightly larger than the fastener outer diameter, then the socket structure is simple, but the contact surface only partially contacts the fastener edge causing damage and deformation

Engineering Contradiction:

Improvefastener gripping effectivenessVSAvoidfastener edge damage and deformation

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The elastic deformation unit is pre-configured to deform when the fastener is inserted, automatically adjusting the socket hole diameter to match the fastener outer diameter. This preliminary adjustment ensures full contact between the socket hole surface and fastener edge before turning operation begins, preventing damage

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The elastic deformation unit automatically adjusts the socket hole diameter based on the fastener size without requiring external intervention or adjustment mechanisms. The elastic material self-adjusts to provide optimal contact pressure, making the system self-regulating and eliminating fastener damage

Inventive Principle:

Principle #25Self-service

Data Source

PatentUS20250387881A1Anti-slip socket

Publication Date: 2025.12.25 RE DAI PRECISION TOOLS

AI summary

An anti-slip socket comprises a body and a plurality of anti-slip units. The body defines a driving end and a driven end. The body is provided with a driving hole being open at the driving end, and a diameter of the driving hole gradually decreases from the driving end toward the driven end. The driving hole is provided with a plurality of driving surfaces. The plurality of anti-slip units are respectively arranged on the plurality of driving surfaces. Therefore, the change in the diameter of the driving hole allows for the connection of fasteners of various sizes, and the anti-slip units effectively engage the fastener to provide an anti-slip effect.