Dual-function back-stepping trainer
By designing a dual-function leg press trainer, and utilizing the linkage between the four-bar linkage and the counterweight arm, the problems of single function and wasted force in existing fitness equipment are solved, thereby reducing the number of barbell plates and improving muscle training effects.
Patent Information
- Application Number
- CN202422400926.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-29
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2034-09-29
AI Technical Summary
Existing fitness equipment has a single function when exercising leg muscles, requires a large number of barbell plates and is inconvenient to operate, and the fixed movement trajectory leads to wasted force.
Design a dual-function leg press trainer, comprising a frame, seat, foot pedals, four-bar linkage, pull bar, and counterweight arm. By linking the four-bar linkage and the counterweight arm, the movement trajectory is changed to reduce the amount of barbell plates used and to exercise the thigh muscles and gluteus maximus.
It achieves the goal of reducing the amount of barbell plates used, improving training efficiency, enhancing the training effect on the thigh and gluteus maximus, and has a stable and reliable structure.
Smart Images
Figure CN223831685U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fitness equipment, and more specifically, to a dual-function leg press trainer. Background Technology
[0002] In today's context of promoting exercise and fitness, many people go to the gym to work out. However, when exercising leg muscles, most of the equipment only has one function, and because leg strength is relatively large, it is necessary to add heavy weights during the exercise.
[0003] Currently available weights are directly connected to the footplate and use guide rails for exercise. The movement trajectory is determined by the fixed guide rails at approximately 45°, resulting in a large component of force on the weights and wasting a significant amount of energy. This necessitates moving numerous barbell plates during exercise and removing them afterward, which is inconvenient and directly increases costs. These factors impose numerous limitations on our training methods. Summary of the Invention
[0004] The technical problem to be solved by this utility model is to provide a dual-function leg press trainer with a reasonable structure that can reduce the amount of barbell plates used.
[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: Construct a dual-function inverted leg exerciser, including a frame and a seat for reclining, and also including a foot pedal, a four-bar linkage, a pull rod and a counterweight arm. The lower part of the four-bar linkage is mounted on the frame, and the upper part is connected to the foot pedal. The two ends of the pull rod are respectively connected to the four-bar linkage and the counterweight arm. One end of the counterweight arm is rotatably mounted on the frame, and the other end is connected to the pull rod.
[0006] According to the above scheme, the counterweight arm is provided with a reinforcing arm, and the reinforcing arm is connected to the pull rod through a joint bearing.
[0007] According to the above scheme, the counterweight arm is equipped with a barbell rod.
[0008] According to the above scheme, there are two foot pedals, which are connected by a pull pin.
[0009] The dual-function pedal exerciser of this invention has the following beneficial effects:
[0010] 1. When using the dual-function leg press trainer of this utility model, the foot pedal pushes the four-bar linkage assembly, which is then transmitted to the pull rod, driving the counterweight arm to move, thereby achieving the purpose of exercise. Due to the change in the angle of the counterweight arm and the connection position of the pull rod during the movement, the force is changed, which can reduce the counterweight and thus reduce the number of barbell plates.
[0011] 2. The dual-function leg press trainer of this utility model uses a four-bar linkage mechanism to enable the movement trajectory to achieve the purpose of exercising the thigh muscles, gluteus maximus and quadriceps. Attached Figure Description
[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the accompanying drawings:
[0013] Figure 1 This is a side view of the dual-function pedal exerciser of this utility model;
[0014] Figure 2 This is a schematic diagram of the distributive states of the dual-function pedal training device of this utility model;
[0015] Figure 3 This is a schematic diagram of the linkage state of the dual-function pedal training device of this utility model. Detailed Implementation
[0016] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings.
[0017] like Figure 1-3 As shown, the dual-function pedal training device of this utility model includes a frame 1, a seat 7, a foot pedal 8, a four-bar linkage 6, a pull rod 5, and a counterweight arm 2.
[0018] The lower part of the four-bar linkage 6 is mounted on the frame 1, and the upper part is connected to the foot pedal 8. The two ends of the pull rod 5 are respectively connected to the four-bar linkage 6 and the counterweight arm 2. One end of the counterweight arm 2 is rotatably mounted on the frame 1, and the other end is connected to the pull rod 5. The counterweight arm 2 is equipped with a reinforcing arm 3, which is connected to the pull rod 5 via a spherical bearing 4. The counterweight arm 2 is equipped with a barbell bar 9 for mounting barbell plates.
[0019] When using this dual-function leg press trainer, the user leans against the seat 7 with both legs extended towards the foot pedal 8. The foot pedal 8 pushes the four-bar linkage 6, which in turn transmits the force to the pull rod 5, causing the reinforcing arm 3 and the counterweight arm 2 to move, thus achieving the purpose of exercise. The change in angle of the counterweight arm 2 and the connection position of the pull rod 5 during the movement alter the force, allowing for a reduction in the amount of counterweight and thus fewer barbell plates to be used. The reinforcing arm 3 ensures structural stability and reliability. Using the four-bar linkage 6 allows the movement trajectory to effectively train the thigh muscles, gluteus maximus, and quadriceps.
[0020] Preferably, there are two foot pedals 8. When the two foot pedals 8 are connected by a pull pin 10, they can move left and right together. When they are disconnected, they can move left and right separately to achieve different training movements.
[0021] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention without departing from the spirit and scope of the claims. All of these forms are within the protection scope of the present invention.
Claims
1. A dual-function leg press trainer, comprising a frame and a reclining seat, characterized in that, It also includes a foot pedal, a four-bar linkage, a pull rod, and a counterweight arm. The lower part of the four-bar linkage is mounted on the frame, and the upper part is connected to the foot pedal. The two ends of the pull rod are respectively connected to the four-bar linkage and the counterweight arm. One end of the counterweight arm is rotatably mounted on the frame, and the other end is connected to the pull rod.
2. The dual-function leg press trainer according to claim 1, characterized in that, The counterweight arm is equipped with a reinforcing arm, which is connected to the pull rod via a spherical bearing.
3. The dual-function leg press trainer according to claim 1, characterized in that, The counterweight arm is equipped with a barbell bar.
4. The dual-function leg press trainer according to claim 1, characterized in that, The foot pedal is provided in two parts, and the two foot pedals are connected by a pull pin.