Variable resistance exercise machine

Abstract

The present invention relates to an exercise machine in which resistance changes according to the movement of a wire by utilizing a spring system, a pulley, or a cam. Resistance gradually increases or decreases as the user pulls or pushes the handle and follows the guide motion, providing the user with a more natural exercise experience and a reduced risk of injury. The present invention includes both a plate weight adjustment method and a lower weight insertion method, and can be applied to various exercise machines such as dumbbell row, bench press, rowing machine, leg press, adductor / aberductor machine, and Smith machine.

Description

Technology Field

[0001] The present invention relates to an exercise device that provides a better exercise experience by efficiently adjusting the resistance provided to the user.

[0002] This applies to various exercise machines such as dumbbell rows, bench presses, rowing machines, leg presses, adductor / aberductor machines, and Smith machines. Background Technology

[0003] Existing exercise equipment has a simple resistance delivery method, which leads to problems such as maximum resistance occurring at the end of the movement or the load being maintained excessively.

[0004] This is highly likely to cause muscle and ligament injuries, and it is difficult to adjust resistance to suit the user's physical ability. The problem to be solved

[0005] 1. Develop a variable resistance structure to reduce the risk of injury caused by constant resistance in existing exercise equipment.

[0006] 2. Implement a technique of gradually changing resistance at the beginning, middle, and end of the exercise movement.

[0007] 3. Design a universal structure compatible with various exercise equipment.

[0008] 4. Provides a simple design that is easy to manufacture and maintain. means of solving the problem

[0009] 1. Handle and wire system: Transmits resistance to the wire when the user pulls or pushes in various positions.

[0010] 2. Guide and wire system: Supports the foot or thigh and transmits resistance via the wire.

[0011] 3. Central axis: Maintains the wire's path smoothly and is mounted on the frame to match various motion trajectories.

[0012] 4. Pulley and cam system: Implements a variable resistor by adjusting the resistance curve according to the movement of the wire.

[0013] 5. Slot axis and disc: Utilizes the disc, which is the existing weight adjustment method.

[0014] 6. Weight: Utilizes the existing weight adjustment method, the weight.

[0015] 7. Spring system: Maintains balance of movement and implements variable resistance.

[0016] 8. Frame structure: Constructed of high-strength material to maintain stability. Effects of the invention

[0017] 1. Use pulleys or cams of different diameters to provide a change in resistance at each stage of the motion.

[0018] 2. The spring system implements variable resistance and complements stability during movement.

[0019] 3. Compatible with various exercise methods and maximizes exercise efficiency.

[0020] 4. Provides the user with a natural exercise experience through smooth resistance changes. Brief explanation of the drawing

[0021] Fig. 1: Schematic structural diagram showing the disc weight method of the present invention FIG. 2: Schematic structural diagram showing the weight method of the weight counterweight of the present invention Specific details for implementing the invention

[0022] 1. Handle (10)

[0023] It is designed to allow the user to perform pulling or pushing actions with one hand or both hands while lying down, sitting, or standing.

[0024] It is an ergonomic structure that reduces wrist fatigue.

[0025] 2. Guide (11)

[0026] It supports the feet or thighs and can be adjusted to fit various body types.

[0027] It is an ergonomic structure that reduces fatigue in the feet or thighs.

[0028] 3. Central axis (20)

[0029] It maintains the wire's path smoothly and supports precise movement.

[0030] It is mounted on a frame to match various exercise trajectories (from top to bottom, from bottom to top, pulling forward, pulling downward, pulling backward, etc.) and becomes a multi-purpose exercise machine or various exercise machine.

[0031] Made of high-strength metal, it prevents deformation.

[0032] 4. Wire (30)

[0033] Connect the handle, pulley or cam, and weight system.

[0034] It is made of high-strength metal or synthetic fiber.

[0035] 5. Pulley (40)

[0036] Changes in diameter provide a change in resistance (moving from a small radius to a large radius gradually increases the resistance acting on the wire, while moving from a large radius to a small radius gradually decreases the resistance).

[0037] It rotates smoothly using wear-resistant materials and bearings.

[0038] A groove is formed to prevent the wire from coming off.

[0039] 6. Cam (41)

[0040] With an asymmetric curve structure, it provides a change in resistance during the initial and final operation.

[0041] Resistance is low during initial operation, and gradually increases as it progresses.

[0042] A groove is formed to prevent the wire from coming off.

[0043] 7. Slot axis (50)

[0044] It is inserted into the inner diameter of the disc to ensure stability and assists the wire movement path.

[0045] It is made of highly durable metal.

[0046] 8. Original (51)

[0047] Resistance can be adjusted with various weights of the announced disc (e.g., 2.5 kg, 5 kg, 10 kg, 20 kg, etc.).

[0048] 9. Weight (60)

[0049] As a specified weight, it is installed at the bottom of the frame and transmits resistance via a wire, allowing the user to easily adjust the weight by inserting a key.

[0050] 10. Spring System (70, 70-1)

[0051] A wire end passing through a slotted shaft or a weight method is configured between the handle and the central axis to provide a change in resistance during pulling and pushing movements.

[0052] As a high-elasticity spring material, there is no degradation in performance.

[0053] 11. Frame (100)

[0054] The frame, made of high-strength metal, stably supports the handle, guide, central axis, wire, pulley, cam, slot shaft, disc, weight, spring system, etc., and maintains the overall structure of the exercise equipment.

[0055] Rubber pads for floor fixation are attached to the bottom of the frame to prevent shaking and minimize noise during exercise.

[0056] 12. Continuous flow of pulling and pushing motions

[0057] The present invention is designed to sequentially connect **pulling** and **pushing** motions so that resistance gradually changes during exercise.

[0058] Resistance increases or decreases according to the phase of motion through the operation of a spring system, pulley, or cam, providing optimal resistance in each movement.

[0059] 12.1. Pulling

[0060] Initial Resistance: When you start pulling the handle, the disc is in its initial position and starts with low resistance.

[0061] Increased Resistance: As the user pulls the wire, spring compression, pulley operation (moving from a small radius to a large radius), or cam operation gradually increases resistance.

[0062] Maximum resistance: When the handle is pulled all the way, the resistance reaches its maximum.

[0063] 12.2. Pushing

[0064] Maximum Resistance Start: After the pulling motion, when the handle begins to be pushed by the weight of the disc or weight, the operation starts in the maximum resistance state.

[0065] Resistance Reduction: During the pushing motion, resistance is reduced by relieving spring compression, pulley operation (moving from a large radius to a small radius), or as the curvature of the cam decreases.

[0066] Minimum resistance: Resistance is minimized at the end point of the push.

[0067] 12.3. Continuous flow

[0068] Pulling and pushing motions are connected in a continuous sequence, allowing the user to experience resistance that changes with each motion.

[0069] It provides continuous and balanced stimulation to the muscles through a structure where resistance increases during the pulling motion and decreases as it transitions to the pushing motion.

[0070] 13. Examples of Embodiments of the Invention

[0071] The present invention can be utilized in the following exercise equipment.

[0072] 13.1. Dumbbell Row

[0073] Resistance change: Resistance increases during the pulling motion and reaches maximum resistance at the end point, while resistance gradually decreases during the pushing motion.

[0074] Effect: Strengthens back muscles.

[0075] 13.2. Bench Press

[0076] Resistance change: Resistance increases during the pushing motion and reaches maximum resistance at the end point, while resistance gradually decreases during the lowering motion.

[0077] Effect: Stimulates chest muscles.

[0078] 13.3. Rowing Machine

[0079] Resistance change: Resistance increases during the opening motion, reaching maximum resistance at the end point, and gradually decreases during the closing motion.

[0080] Effect: Whole-body muscle stimulation.

[0081] 13.4. Leg Press

[0082] Resistance change: Resistance increases during the pushing motion, reaching maximum resistance at the end point, and gradually decreases when returning the footplate to its original position.

[0083] Effect: Strengthens lower body muscles.

[0084] 13.5. Aductor / Aberductor Machine

[0085] Resistance change: Resistance increases during the opening motion, reaching maximum resistance at the end point, and gradually decreases during the closing motion.

[0086] Effect: Maximizes the effectiveness of thigh muscle exercises.

[0087] 13.6. Smith Machine

[0088] Resistance change: Resistance increases when pushing the barbell upward, reaching maximum resistance at the end point, and gradually decreases when lowering the barbell.

[0089] Effect: Balanced training of upper and lower body muscles.

[0090] As such, while specific embodiments have been described in the detailed description of the present invention, it is understood that various modifications are possible within the scope of the invention.

[0091] Therefore, the scope of the present invention should not be limited to the described embodiments, but should be defined by the claims set forth below as well as equivalents thereof. Explanation of the symbols

[0092] 10 : Handle 11 : Guide 20 : Center axis 30 : Wire 40 : Pulley 41 : Cam 50 : Slot axis 51 : Disk 60: Weight 70, 70-1: Spring system 100 : Frame

Claims

Claim 1 A variable resistance exercise machine comprising a handle or guide, a central axis, a wire, a pulley or cam, a slotted axis and a disc or weight, a spring system and a frame, wherein the slotted axis supports the disc, the weight provides variable resistance separately, and the spring system or pulley or cam operates according to the movement of the wire, or the spring system and pulley or cam operate together to gradually change the resistance. Claim 2 In claim 1, the variable resistance exercise machine comprises the following components: 1) Handle: A handle that a user holds to perform exercise. 2) Guide: A guide that supports the user's foot or thigh to perform exercise. 3) Central axis: An axis mounted on a frame to maintain a smooth path of the wire and align with various exercise trajectories. 4) Wire: A cable that transmits force during exercise. 5) Pulley: A device that controls the movement path and resistance of the wire. 6) Cam: A device that controls the movement path and resistance of the wire. 7) Slot axis: An axis inserted into the inner diameter of a disc. 8) Disc: A variable weight device that provides resistance. 9) Weight: A variable weight device that provides resistance. 10) Spring system: A spring mechanism that generates variable resistance during exercise. 11) Frame: A structure that supports all components. The variable resistance exercise machine is characterized in that the slot axis supports the disc, the weight separately provides variable resistance, and the spring system, pulley, or cam operates according to the movement of the wire, or the spring system, pulley, or cam operates together to gradually change resistance. Claim 3 A variable resistance exercise machine according to claim 1 or claim 2, characterized in that the exercise machine of the present invention is applicable to various exercise machines such as dumbbell row, bench press, rowing machine, leg press, adductor / aberductor machine, and Smith machine.

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