Hand Grip Exerciser With Retractable Finger Pressing Assembly

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Solution Overview

Problem

Current hand grip exercisers primarily focus on overall hand and forearm strength training, failing to provide specific training for individual fingers, which can lead to fatigue and pain after prolonged use, necessitating relaxation or recovery exercises.

Innovation Solution

A multifunctional hand grip exerciser with a lever and finger pressing assembly that allows for both grip strength and finger strength training, featuring adjustable resistance, locking mechanisms, and a counting device for scientific exercise tracking.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If current hand grip exercisers are used for grip strength training, then hand strength is improved, but finger fatigue and pain occur during prolonged use

Engineering Contradiction:
Improvegrip strengthVSAvoidfinger fatigue and pain
Core Design Contradiction:
StrengthVSObject-affected harmful factors

Solution Approach 1:

The exerciser is divided into two independent functional modules: a grip training module (handle with elastic component) and a finger training module (pressing heads with individual elastic components). This segmentation allows users to perform grip strength training while having separate pressing heads available for finger-specific relaxation and recovery exercises, thereby preventing finger fatigue during prolonged use.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The exerciser is designed with multi-functionality to serve multiple training purposes: grip strength training, finger strength training, finger relaxation, and finger recovery. The pressing heads can be extended for finger training or retracted for grip training, making a single device capable of addressing both grip strength improvement and finger fatigue prevention.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If pressing heads are extended for finger training, then finger strength training is enabled, but grip strength training is interfered with

Engineering Contradiction:
Improvefinger training capabilityVSAvoidgrip strength training interference
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The pressing heads are designed to be dynamically adjustable between extended and retracted positions. When pressing heads are extended, they enable finger training functions. When retracted, they clear the grip area allowing uninterrupted grip strength training. This dynamic adjustment resolves the interference between the two training modes.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The pressing heads can be extracted (retracted) into the handle body when not needed for finger training, removing them from the grip path. This extraction allows the grip training function to operate without interference from the pressing heads, while still maintaining the capability to extend them for finger training when required.

Inventive Principle:
Principle #2Taking out (Extraction)

3Strength

If elastic resistance is increased for grip strength training, then training effectiveness is improved, but ease of operation decreases

Engineering Contradiction:
Improvetraining effectivenessVSAvoidease of gripping
Core Design Contradiction:
StrengthVSEase of operation

Solution Approach 1:

The elastic resistance parameter is made adjustable through an adjusting mechanism that allows users to modify the tension of the elastic component. Users can increase resistance for more effective training or decrease it for easier operation, depending on their fitness level and training goals, thereby resolving the contradiction between training effectiveness and ease of operation.

Inventive Principle:
Principle #35Parameter changes

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

Enables both grip and finger strength training, providing relaxation or recovery exercises for fingers, ensuring user convenience and versatility through adjustable resistance and non-interfering functionalities.

Implementation Method 1

an elastic assembly is disposed in the main body... the elastic assembly is configured to provide resistance for the lever to rotate

Methodology Applied
Scientific EffectElastic force: Elasticity

Implementation Method 2

Elastic components are respectively disposed in the mounting cavities and respectively abut against the pressing heads, the elastic components enable the free ends of the pressing heads to keep in a first tendency to extend out of the mounting cavities

Methodology Applied
Scientific EffectElastic force: Elasticity

Data Source

PatentUS12611572B2Multifunctional hand grip exerciser
Publication Date: 2026.04.28 NINGBO HAOLEI INTELLIGENT TECH CO LTD
  • US12611572B2 patent drawing
  • US12611572B2 patent drawing
  • US12611572B2 patent drawing

AI summary

A multifunctional hand grip exerciser is provided, including a main body, a lever, and a finger pressing assembly. The main body includes a handle portion, an elastic assembly is disposed in the main body, mounting cavities are defined on the handle portion, and outer ends of the mounting cavities respectively penetrate through a surface of the handle portion. The lever is rotatably connected to the main body, a driving end of the lever is connected to the elastic assembly, and the elastic assembly is configured to provide resistance for the lever to rotate. The finger pressing assembly includes pressing heads for pressing, the pressing heads are disposed corresponding to the mounting cavities, the pressing heads are respectively and slidably disposed in the mounting cavities, and free ends of the pressing heads are capable of respectively extending out of or retracting into the mounting cavities.