IP Library › Granted Patent US 12661550
Granted Patent B2
US 12661550 · App. 19/243,665 · Granted Jun 23, 2026

Hand grip strengthener

Inventor: Yiming Gao (Shenzhen City, CN)
Assignee: MACBO TECHNOLOGIES LLC
A63B23/16A63B21/00069A63B21/023A63B21/0421A63B21/4047A63B24/0062A63B71/0622A63B2071/0658A63B2220/17A63B2220/20A63B2220/51A63B2220/56A63B2220/58
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Quick Facts
Patent No.
US 12661550
App. No.
19/243,665
Granted
Jun 23, 2026
Kind
B2
Abstract

A hand grip strengthener includes a first operation arm, a second operation arm, a strength adjustment assembly including a spring element, a spring driving element, and an adjustment control element, wherein the spring element is arranged to generate a resistance force to the relative movement between the first operation arm and the second operation arm, wherein when the adjustment control element is operated by the user, the spring driving element is driven to move, so as to drive the spring element to move to adjust the resistance force. The hand grip strengthener further includes a grip force measurement assembly which is coupled to one of the first operation arm and the second operation arm to measure a grip force of a user.

Claims (16)

1 . A hand grip strengthener, comprising:

a first operation arm;

a second operation arm;

a strength adjustment assembly comprising a spring element, a spring driving element, and an adjustment control element, wherein said spring element is arranged to generate a resistance force to the relative movement between said first operation arm and said second operation arm, wherein when said adjustment control element is operated by a user, said spring driving element is driven to move, so as to drive said spring element to move to adjust the resistance force; and

a grip force measurement assembly which is mounted to said second operation arm at a rear side of said first operation arm, wherein said grip force measurement assembly comprises a sensor element mounted on said second operation arm to detect a grip force of the user and a display screen for displaying grip force information obtained from said sensor element;

wherein said grip force measurement assembly further comprises a resistance force obtaining unit for automatically acquiring the resistance force of the spring element, wherein said grip force measurement assembly is configured to add the spring resistance force to a grip force value detected by said sensor element, so as to accurately display the grip force exerted by the user on the display screen.

2 . The hand grip strengthener according to claim 1 , wherein said spring element comprises a moving end portion, wherein said resistance force obtaining unit comprises a detector sensor which is a pressure sensor mounted to said moving end portion of said spring element.

3 . The hand grip strengthener according to claim 1 , wherein said spring element comprises a moving end portion, wherein said resistance force obtaining unit comprises a detector sensor which is a displacement sensor to obtain a moving length of said spring element, so as to automatically calculate the spring resistance of said spring element.

4 . The hand grip strengthener according to claim 1 , wherein said spring element comprises a moving end portion, wherein said resistance force obtaining unit comprises a detector sensor which is a displacement sensor to obtain a position of said moving end portion of said spring element, wherein said grip force measurement assembly is configured to determine the corresponding spring resistance force associated with the position of said moving end portion of said spring element from a lookup table stored in aid grip force measurement assembly.

5 . A hand grip strengthener, comprising:

a first operation arm;

a second operation arm;

a strength adjustment assembly comprising a spring element, a spring driving element, and an adjustment control element, wherein said spring element is arranged to generate a resistance force to the relative movement between said first operation arm and said second operation arm, wherein when said adjustment control element is operated by a user, said spring driving element is driven to move, so as to drive said spring element to move to adjust the resistance force; and

a grip force measurement assembly which is mounted to said second operation arm at a rear side of said first operation arm, wherein said grip force measurement assembly comprises a sensor element mounted on said second operation arm to detect a grip force of the user;

wherein said strength adjustment assembly further comprises a spring mounting element which is connected to a top of said second operation arm, wherein said spring element is inclinedly connected between said spring driving element and said spring mounting element;

wherein said strength adjustment assembly comprises a base arm having a channel and an elongated window connected to said channel, wherein a transparent cover is disposed in said elongated window, wherein a plurality of resistance level scales is provided on said transparent cover.