Magnetic generator for thigh muscle training

The magnetic chair with integrated generating units addresses the limitations of manual operation in existing devices by allowing seated thigh muscle training, enhancing strength and circulation through adjustable pulse currents, suitable for elderly users.

JP2025078172APending Publication Date: 2025-05-20加治 初彦
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Patent Information

Application Number
JP2023190551
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2023-11-08
Publication Date
2025-05-20

AI Technical Summary

Technical Problem

Existing magnetic field generating devices for muscle training, such as those described in Patent Document 1, require users to manually hold the device, leading to arm fatigue and limiting their use to short durations, especially for training thigh muscles like quadriceps, which are crucial for elderly individuals to prevent falls and maintain mobility.

Method used

A magnetic chair with integrated magnetic generating units positioned to face the thighs and calves, allowing users to train their thigh muscles while seated, featuring a power supply unit and adjustable pulse currents to stimulate muscle growth and relaxation.

Benefits of technology

Enables prolonged and relaxed muscle training of the quadriceps and calf muscles, enhancing muscle strength and circulation without arm fatigue, suitable for elderly users, and preventing falls by improving mobility.

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Abstract

To provide a magnetic generator for thigh muscle training that allows training of thigh muscles (quadriceps femoris muscles) over a long period of time in a relaxed state without causing arm fatigue.SOLUTION: A magnetic generator 10 for thigh muscle training comprises a housing 21, a magnetic chair 20 having means for generating magnetic pulses, and an external power supply device 30 electrically connected to the magnetic chair 20. The magnetic chair 20 includes a pair of first magnetic generation units 40A disposed to be spaced apart from each other in a lateral direction X so as to face the thigh parts of a user 1 in the housing 21.SELECTED DRAWING: Figure 3
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Description

[Technical field]

[0001] The present invention relates to a magnetic field generating device for thigh muscle training, which uses magnetism to train the thigh muscles of a user. [Background technology]

[0002] 2. Description of the Related Art Magnetic field generating devices that use magnetism to improve health by building muscle and promoting blood circulation have been known.

[0003] For example, Patent Document 1 discloses a magnetic generating device that includes a vibrator built into the upper part of a case body, a rod-shaped oscillator that is attached to the vibrator and has magnetism, a pair of contact parts that are electrodes that come into contact with the skin, and a control box that has a built-in low-frequency generator connected to the contact parts. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Special Publication No. 2008-518689 Summary of the Invention [Problem to be solved by the invention]

[0005] According to the magnetic generator disclosed in Patent Document 1, the magnetic stimulation of muscles causes muscle fibers to proliferate, resulting in muscle hypertrophy and an increase in muscle mass. It also induces an apoptotic effect on body fat, reducing fat mass and tightening the body, and a certain degree of beauty effect can also be expected.

[0006] However, when a user uses the device by himself / herself without receiving treatment from a therapist, the user needs to hold the case body, which contains the vibrator, a pair of contacts, and other electrical components, in his / her hand and apply it to the target muscle group. Since the case body has a certain weight, the arm becomes tired after a while and the device cannot be used for a long time.

[0007] In recent years, thigh muscles (quadriceps muscles) have been attracting attention as important muscles that help elderly people to prevent falls and walk smoothly. In order to train thigh muscles (quadriceps muscles) using the magnetic generator disclosed in Patent Document 1, it is necessary to hold the case body and keep it facing the front or back of the thigh, which makes the arm tired and makes it difficult to use for long periods of time.

[0008] Furthermore, for elderly people, it is difficult to perform exercises such as squats that strengthen the thigh muscles (quadriceps) on a daily basis.

[0009] The object of the present invention is to provide a magnetic field generating device for thigh muscle training, which is an improvement over the conventional technology and allows the user to train the thigh muscles (quadriceps) for long periods of time in a relaxed state without tiring the arms. [Means for solving the problem]

[0010] In order to solve the technical problem, the present invention relates to a magnetic generating device for thigh muscle training, comprising a magnetic chair having a housing and a means for generating a magnetic pulse, and an external power supply unit electrically connected to the magnetic chair, wherein the magnetic chair has a pair of first magnetic generating units located within the housing, spaced apart from each other in the lateral direction so as to face a user's thighs. Effect of the Invention

[0011] According to one or more embodiments of the magnetic generating device for thigh muscle training of the present invention, the magnetic chair has a pair of first magnetic generating units located within the housing and spaced apart from each other in the horizontal direction so as to face the user's thighs, so that the user can improve the strength of his or her thigh muscles (quadriceps) while sitting and spending his or her leisure time, for example, watching television, reading a magazine or a book, or using a mobile phone. [Brief description of the drawings]

[0012] The drawings show specific embodiments of the invention according to the present disclosure, including essential features of the invention as well as alternative and preferred embodiments. [Figure 1] 1 is a perspective view of a magnetic field generating device for thigh muscle training according to the present invention. [Diagram 2] FIG. 2 is a perspective view of the magnetic field generating device in use. [Diagram 3] FIG. 2 is a perspective view showing the internal structure of a magnetic field generating device. [Figure 4] FIG. [Diagram 5] A diagram showing the inside of a magnetic chair. [Figure 6] Schematic diagram of the electrical circuit of the magnetic generator. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0013] The magnetic field generating device 10 for thigh muscle training according to the present invention will be described in detail below with reference to the accompanying drawings. The following embodiments include essential features of the present invention, as well as features that can be selectively adopted and features that can be appropriately combined.

[0014] 1 to 3, a magnetic field generator 10 for thigh muscle training according to the present invention has an up-down direction Y, a lateral direction X, and a front-back direction Z, and includes a magnetic chair (sofa, reclining chair) 20 capable of generating magnetic fields, and an external power supply device 30. The magnetic chair 20 is provided with an electromagnetic field generated in the form of pulses by the magnetic action of an electric current when the power supply device 30 is turned on and off.

[0015] The magnetic chair 20 includes a housing 21, a backrest 22, a seat portion 23, and an ottoman portion 24.

[0016] A magnetic generating unit 40 having a magnetic generating coil and an air blower 50 for discharging air from within the housing 21 are provided within the housing 21 of the magnetic chair 20 .

[0017] The magnetic field generating unit 40 includes a pair of first magnetic field generating units 40A located apart from each other in the lateral direction X on the seat 23 so as to face the thighs of the user 1 when the user 1 is seated on the magnetic chair 20, and a pair of second magnetic field generating units 40B located apart from each other in the lateral direction X on the ottoman 24 so as to face the calves of the user 1. The first magnetic field generating unit 40A and the second magnetic field generating unit 40B have the same structure and configuration. However, the second magnetic field generating unit 40B has a smaller outer shape than the first magnetic field generating unit 40A.

[0018] Here, for example, if the height of the ottoman portion 24 is approximately the same as that of the seat portion 23, the user 1 may unconsciously move his / her body forward while napping, causing the pulsed magnetic field from the magnetic generating unit 40 to approach his / her heart. If the user 1 is wearing a pacemaker due to a heart disease, the pulsed magnetic field may affect the pacemaker, causing it to malfunction, or other unforeseen circumstances.

[0019] In the illustrated example, the ottoman portion 24 is located forward and continuous with the seat portion 23, and has a raised shape so as to be located higher than the seat portion 23. As shown in Fig. 2, the magnetic chair 20 has such a configuration, so that the user 1 has the legs 2 raised in the seated position. Therefore, even if the user is in an unconscious state, such as taking a nap, the upper body will not come close to the magnetic generating unit 40, and even if the user is wearing a pacemaker, the user will not be affected by the pulsed magnetic field.

[0020] The blower device 50 includes a plurality of air intake holes 51A formed on both side surfaces of the housing 21 of the magnetic chair 20, a plurality of air intake holes 51B located on one side of the housing 21, a plurality of exhaust (heat exhaust) holes 52 located on the other side of the housing 21, and a heat exhaust fan 53 arranged within the housing 21 opposite the exhaust holes 52.

[0021] 4, the case 41 of the first magnetic field generating unit 40A(40) is in the shape of a hollow box and includes a magnetic field generating coil 42 and a blower consisting of a plurality of intake holes 43 formed on the side of the case 41 and an exhaust hole 44 connected to a heat exhaust fan 45. The magnetic field generating coil 42 generates a pulsed magnetic field through the application of an electric current. The blower supplies a fluid that cools the magnetic field generating coil 42.

[0022] In the illustrated example, only an intake hole is arranged on the inflow side of the fluid (outside air), but an intake fan may be arranged, and in order to improve the cooling efficiency of the magnetic field generating coil, the intake side blower means and the exhaust side blower means may be positioned opposite each other. As the blower means of the blower device 50 of the magnetic chair 20 and the magnetic field generating unit 40, various known means such as a blower, a compressor, and a pump, in addition to a fan, can be used.

[0023] The magnetic field generating coil 42 is made by winding an enameled wire into a coil shape, and may be a three-dimensional coil with two coils stacked one on top of the other in a cylindrical shape, or may be a flat coil such as a spider coil in the shape of a spider web.

[0024] 5, the magnetic generating unit 40 has a blowing means, so that the air inside is discharged and the magnetic generating coil 42 is cooled, and the magnetic chair 20 has a blowing device 50, so that the air is circulated such that the fluids (air) P1, P2 flow into the housing 21 from the intake holes 51A, 51B and the air inside is discharged to the outside from the exhaust hole 52 via the heat exhaust fan 53. In this way, the housing 21 is ventilated by the blowing device 50, so that the heat discharged from the magnetic generating unit 40 is retained inside, and the magnetic chair 20 as a whole is prevented from becoming heated.

[0025] 3, one end of each of connection cords 61 and 62 extending from the external power supply device 30 is connected to the connector of the magnetic field generating coil 42. The other ends of the connection cords 61 and 62 are connected to connectors (not shown) of the external power supply device 30. The connection cords 61 and 62 are inserted into the magnetic chair 20 through insertion holes formed in the side surfaces of the magnetic chair 20. Power is also supplied to the blower device 50 through the connection cord 62.

[0026] The external power supply device 30 has a cabinet 31 that houses an electric circuit system, a touch-type operation panel 32 located on the top surface of the cabinet 31, and casters 33 attached to the bottom surface of the cabinet 31 so as to be freely rotatable.

[0027] The operation panel 32 has a controller function and can control the generation of a pulsed electromagnetic field and a pulse signal by applying a pulsed current to the magnetic field generating coil 42. The controller of the operation panel 32 has a power supply unit that switches on / off the power supply of the pulsed current applied to the magnetic field generating coil 42, and can control the on / off timing and intensity of the power supply to control the generation timing, end timing, frequency, period, width, intensity, form, etc. of the electromagnetic pulse.

[0028] In the magnetic field generating device 10 for thigh training having such a configuration, a low-frequency signal with a frequency of, for example, 10 Hz is oscillated. This is output to a switching circuit, and the switching circuit switches the power supplied to the magnetic field generating coil 42 based on this frequency signal, supplying a pulse current with a period of 10 Hz to the magnetic field generating coil 42. When a current flows through the magnetic field generating coil 42, a magnetic field is generated, and because this is a pulse current of 10 Hz, a magnetic pulse of 8 Hz is generated from the magnetic field generating coil 42.

[0029] There are three types of pulse current: a primary pulse current for low-intensity toning that stimulates the deep parts of the thighs with low-frequency pulses of 10 to 30 Hz, exercising the muscles to promote blood circulation and kneading the thigh muscles; a secondary pulse current for high-intensity training that stimulates the surface parts of the thighs with high-frequency pulses of 30 to 120 Hz, exercising the upper muscles to strengthen them; and a tertiary pulse current of 3 to 10 Hz, which is even less stimulating than the primary pulse current and helps expel waste products from the body.

[0030] As mentioned above, the type of pulse current can be selected from the first to third pulse currents, and first, the first pulse current consisting of a low-stimulation pulse magnetic pattern is used to warm up the muscles for about 3 to 5 minutes, and then, the second pulse current with high stimulation is used to induce supermaximal muscle contraction of the thigh muscles (quadriceps) and triceps surae (calf), thereby improving muscle strength. Specifically, it is possible to induce approximately 20,000 muscle contractions with one use.

[0031] In this way, the user can improve the muscle strength of the thigh muscles (quadriceps) and triceps surae (calf muscles) while spending leisure time, for example, watching television, reading magazines or books, operating a mobile phone, etc., while sitting in the magnetic chair 20. Therefore, even if the user does not take the trouble to set aside time for muscle training, muscle training can be performed during the "multitasking time" spent in leisure time, and muscle strength can be improved in a casual and relaxed manner.

[0032] In particular, for elderly users, improving muscle strength in the thigh muscles (quadriceps) can help prevent falls and walking disorders.

[0033] In addition, the magnetic generator 10 for thigh muscle training stimulates muscles with magnetic pulses generated by a pulsed current. Unlike electrical stimulation devices (EMS), in which most of the energy acts on the surface layer of the muscle, the magnetic generator 10 transmits energy deep into the muscle, enabling innervation of the entire central nervous system and causing contraction of the entire muscle layer.

[0034] This can induce supermaximal muscle contraction and fat apoptosis that cannot be achieved by physical exercise such as squats. In addition, while electrical stimulation devices (EMS) have limitations on their strength due to the risk of pain and burns, the magnetic generator 10 for thigh muscle training uses electromagnetic pulses and therefore has good tolerance to relatively strong stimulation.

[0035] In addition, after performing muscle training using the second pulse current, if necessary, the thigh muscles (quadriceps) and triceps surae (calf muscles) can be stimulated using a tertiary pulse current consisting of an ultra-low stimulation pulse magnetic pattern, improving blood circulation throughout the lower body and promoting the excretion of waste products.

[0036] In the magnetic field generating device 10 for thigh muscle training according to the present invention, a plurality of magnetic field generating units 40 are arranged, but a single magnetic field generating unit 40 may be arranged. In addition, when the magnetic field generating device 10 for thigh muscle training has a plurality of magnetic field generating units 40, different types of pulse currents may be passed through the magnetic field generating units 40A and 40B to generate different magnetic pulses, for example, a first pulse current may be passed through the first magnetic field generating unit 40A and a second pulse current may be passed through the second magnetic field generating unit 40B.

[0037] FIG. 6 is a schematic diagram of the electrical circuit of the magnetic generator 10 for thigh muscle training, in which the external power supply 30 includes a power supply unit 81, a DC high voltage generating unit 82, a capacitor (capacitor) 83 for generating a pulse current, a DC resistor 84 on the discharge circuit, a semiconductor switch unit 85, and a heat exhaust fan control unit 86.

[0038] The semiconductor switch unit 85 includes a switching semiconductor element (for example, a thyristor) for discharging the charge of the capacitor by a gate signal, a diode for flowing the reverse current generated in the coil during discharge to the capacitor 83, a gate signal for discharge generated by a gate signal generator, a gate signal generator capable of generating gate pulses with an arbitrary width and timing, and the like.

[0039] The current from the power supply unit 81 is charged to the capacitor 83. When a gate signal is sent from the gate signal generator to the switching semiconductor element, the switching semiconductor element conducts, and the charge of the capacitor 83 becomes a decaying current accompanied by vibration at a natural frequency determined by L, C, and R and is discharged through the magnetic generation coil 42 to generate a pulsed magnetic field.

[0040] Although not shown, the magnetic chair 20 may include a massage unit that performs a massage operation and a controller that controls the operation. The massage unit can perform a massage operation by applying pressure, such as hitting, kneading, or stroking the body, for example, the back, shoulders, neck, thighs, pelvis, arms, and feet, when the user 1 is seated on the magnetic chair 20.

[0041] In this way, since the magnetic chair 20 includes a massage unit, the user can perform muscle strength training on the quadriceps femoris and triceps surae while relaxing the whole body.

[0042] For each constituent material constituting the magnetic generation device 10 for thigh muscle training according to the present invention, various known materials commonly used in this field can be used without limitation, unless otherwise specified.

[0043] The above-described present invention can include at least the following embodiments. The embodiments can be adopted separately or in combination with each other. (1) The device further includes a pair of second magnetic generating units positioned apart from each other in the lateral direction so as to face the user's calves. (2) The first and second magnetic generating units each include a magnetic generating coil and a blower means for supplying a fluid to cool the magnetic generating coil, and the magnetic chair includes a blower device for cooling its interior. [Explanation of symbols]

[0044] 10. Magnetic generator for thigh muscle training 20 Magnetic Chair 21 Housing 40 Magnetic Generation Unit 40A First Magnetic Generator Unit 40B Second magnetic generating unit 42 Magnetic generating coil 50 Blower X Horizontal

Claims

1. a magnetic chair having a housing and a means for generating a magnetic pulse; and an external power supply electrically connected to the magnetic chair; A magnetic generating device for thigh muscle training, wherein the magnetic chair has a pair of first magnetic generating units positioned within the housing and spaced apart from each other in the horizontal direction so as to face the user's thighs.

2. 2. The magnetic field generating device for thigh muscle training according to claim 1, further comprising a pair of second magnetic field generating units positioned apart from each other in the lateral direction so as to face the user's calves.

3. 3. The magnetic field generating device for thigh muscle training according to claim 2, wherein the first and second magnetic field generating units each include a magnetic field generating coil and a blower means for supplying a fluid to cool the magnetic field generating coil, and the magnetic chair includes a blower for cooling its interior.

Citation Information

Patent Citations

  • Movement enhancement built-in electrostimulator and method

    JP2008518689A