Seated Leg Extension

By introducing a back limiting mechanism and transmission wire system into the seated stretching leg trainer, the problem of forward leaning caused by leg force is solved by the user, and a more effective quadriceps exercise effect is achieved, maintaining the correct posture and easy operation.

CN117159996BActive Publication Date: 2025-08-19SHANDONG MINOLTA FITNESS EQUIP
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Patent Information

Application Number
CN202311349124.6
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-10-18
Publication Date
2025-08-19
Estimated Expiration
2043-10-18

AI Technical Summary

Technical Problem

During use, the existing seated stretching leg trainer is prone to tilt forward due to the force of the legs, and the back cannot fit with the seat, which makes it difficult for the quadriceps to tighten and the exercise effect is reduced.

Method used

A back limiting mechanism is designed to limit the user's back posture through the combination of elastic locking belt and shoulder strap, ensuring the correct sitting posture during the exercise process. At the same time, the weight-bearing mechanism and leg training mechanism are connected through the transmission wire and fixed pulley system to achieve weight-bearing adjustment and transmission.

Benefits of technology

Effectively prevent the body from leaning forward, ensuring that the legs can be fully straightened, improving the exercise effect, and easy to operate. The limit can be lifted at any time after use, without affecting the overall user experience.

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Abstract

The present invention provides a seated leg curling trainer, which relates to the technical field of fitness equipment. The seated leg curling trainer includes a fixed base plate, the top rear end of the fixed base plate is fixedly connected to a connecting shell, the two sides of the interior of the connecting shell are respectively fixedly connected to a first limiting rod and a second limiting rod, a weight-bearing mechanism is slidably connected between the first limiting rod and the second limiting rod, one side of the top inner surface of the connecting shell is respectively fixedly connected to a first fixed pulley and a second fixed pulley, one side of the connecting shell is fixedly connected to a leg training mechanism, the top center of the fixed base plate is fixedly connected to a support mechanism, and the front and rear ends of the support mechanism are both fixedly connected to a back limiting mechanism. By designing the back limiting mechanism, the back of the human body is restricted by the straps during use, thereby greatly improving the effect of exercise, and making operation convenient without affecting the overall user experience.
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