Training equipment

Abstract

Provided is an EMS training device that can be used underwater for a long time without causing pain to the user's body. 【Solution means】The EMS training device 1 includes a main body case 10 having a main body part MR and an arm part AR, a battery 60, a circuit board assembly, a conductive elastic sheet piece 70A, and an elastic insulating sheet cover 80 provided on the back side of the main body case 10. The main body part MR has a waterproof structure and an operation part 30 is provided on the top surface side. The arm part extends in an arc shape from both ends of the main body part MR to the back side. The circuit board assembly is supplied with power from the battery 60 and generates a drive pulse signal in response to an operation of the operation part 30 by the user. The conductive elastic sheet pieces 70A are respectively provided on the back side of the arm part AR so as to be connected to the main body part MR, and receive the supply of the drive pulse signal from the circuit board assembly and output an EMS current. A plurality of through holes are formed in the elastic insulating sheet cover 80.

Description

Technical Field

[0001] The present invention relates to a training device using electrical muscle stimulation (EMS) therapy.

Background Art

[0002] Electrical muscle stimulation ( E lectrical M uscle S timulation, hereinafter simply referred to as "EMS") technology is known for training devices that induce muscle movement by applying electrical stimulation to muscles (see, for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In such a training device using EMS, in order to further enhance the physiotherapy effect, for example, it is also desired to use it in a bathtub during bathing.

[0005] However, the training device disclosed in Patent Document 1 does not consider the waterproof function of the power supply at all, so it is not easy to use in water.

[0006] In addition, in conventional EMS devices, when generating a strong EMS current, pain occurs in the user's body. On the other hand, when using a very weak EMS current, no pain occurs, but there is a problem that the exercise effect of physical therapy is inferior.

[0007] The present invention has been made in view of the above circumstances, and an object thereof is to provide an EMS training device that has a waterproof function and can be used underwater for a long time without causing pain to the user's body.

Means for Solving the Problems

[0008] In order to achieve the above object, the EMS training device according to the present invention includes a main body portion having a waterproof structure and provided with an operation portion, and two arm portions arc-shapedly extending from both ends of the main body portion to the back side so as to form loops with open ends at their respective tips. A main body case having, a rechargeable secondary battery housed inside the waterproof structure, a circuit board housed inside the waterproof structure, supplied with power from the secondary battery, and generating a drive pulse signal in response to an operation of the operation portion by the user, and two conductive sheet pieces provided on the back side of the arm portion so as to be connected to the main body portion, receiving the supply of the drive pulse signal from the circuit board, and outputting an EMS current, and an insulating sheet cover provided on the back side of the main body case with each conductive sheet piece sandwiched therebetween and having a plurality of through holes formed therein. The arm portion and the insulating sheet cover have elasticity that can be wound around the user's abdomen or limbs, and the through holes enable the EMS current from the conductive sheet piece to be sent out with the liquid as a conductor when the conductive liquid is filled.

[0009] In one embodiment, the through holes are arranged in such a manner that the EMS current is output substantially uniformly on the user body surface facing the conductive sheet piece.

[0010] In another embodiment, the EMS training device further includes a vibration motor that is driven based on a drive signal generated by the circuit board in response to an operation of the operation portion and vibrates the main body case.

[0011] In another embodiment, the EMS training device further includes a secondary battery charging port with a waterproof plug provided on the main body case and connectable to an external power source.

[0012] In some embodiments, the operation unit includes a plurality of level operation units for adjusting the frequency level of the drive pulse signal and a power on / off operation unit.

[0013] In some embodiments, the main body case is formed of a hard rubber PC material, the conductive sheet piece is formed of a conductive silicone material, and the insulating sheet cover is formed of a non-conductive silicone material.

Advantages of the Invention

[0014] According to the EMS training device of the present invention, since the main body portion of the main body case has a waterproof structure, it can be used underwater. Further, the insulating sheet cover is provided on the back surface side of the main body case with each conductive sheet piece interposed therebetween, and a plurality of through holes are formed in the insulating sheet cover. Therefore, the conductive sheet piece does not directly touch the user's body, and the EMS current flows through the water as a conductor that has entered the through holes of the insulating sheet cover to the user's body. Thus, an appropriate electrical stimulation is given without causing a tingling pain such that the skin tingles at the moment of discharge, and a training device with an excellent user experience that can be used for a long time is provided.

Brief Description of the Drawings

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Embodiments for Carrying Out the Invention

[0016] When an EMS current is directly applied from the electrodes to a person's skin, even if the electrodes come into contact with the skin and a loop is once closed and current flows through the circuit, the muscles under the skin will be deformed irregularly due to torsion or deformation, so that the original circuit will be cut off. Then, the current will immediately move to other points. In this way, the conductive point (current arc) of the EMS current to the human body will always move. When the conductive point occurs again at the original point, at the moment of discharge, a tingling pain like that when a sharp needle inserted into the skin is pulled out of the skin and then inserted into the skin again may occur in the muscle.

[0017] However, when using the EMS current in water with water as the medium, the inventor of the present invention discovered that the conductive point cannot move due to muscle distortion, and invented a training device that can be used in water.

[0018] Hereinafter, embodiments of the present invention will be described with reference to the drawings. The same or corresponding elements and members in the drawings are denoted by the same reference numerals, and the redundant description thereof will be omitted as appropriate. In addition, the shapes, sizes, etc. of the respective members in the drawings are appropriately enlarged, reduced, or omitted for the sake of easy explanation, and thus may not match the actual scale and ratio. Also, in the description of the drawings, note that the terms "upper" and "lower" are used for convenience in accordance with the vertical direction of the paper surface, and may not coincide with the direction of the gravitational acceleration. In addition, the term "substantially" is used to include measurement errors.

[0019] The EMS thigh trainer 1 shown in FIGS. 1 to 4 is an application of the EMS training device of the present invention to thigh training, and is designed to be used in water, for example, in a bathtub.

[0020] FIG. 1 is an example of a perspective view showing the external shape of the EMS thigh trainer 1, FIG. 2 is an example of a six-view drawing of the EMS thigh trainer 1, (A) is a front view, (B) is a left side view, (C) is a right side view, (D) is a rear view, (E) is a top view, and (F) is a bottom view. FIG. 3 is an example of an exploded perspective view of the EMS thigh trainer 1, and FIG. 4 is a cross-sectional view taken along line A-A of FIG. 1.

[0021] (1) Basic configuration The EMS thigh trainer 1 mainly includes a main body case 10, a circuit board assembly 52, a battery 60, two conductive elastic sheet pieces 70A and 70B, and an elastic insulating sheet cover 80. The conductive elastic sheet pieces 70A and 70B are formed of a conductive material having elasticity, such as conductive silicone. The elastic insulating sheet cover 80 is formed of an elastic material having electrical insulation, such as a non-conductive silicone material.

[0022] The main body case 10 has a main body part MR and an arm part AR.

[0023] A closed space is formed inside the main body case 10 between the top surface and the bottom surface of the main body part MR, and a waterproof structure for enabling the use of the EMS thigh trainer 1 in water is provided in this closed space. The specific configuration of the waterproof structure will be described in detail later with reference to FIGS. 5 to 7.

[0024] The arm part AR of the main body case 10 extends from the main body part MR in an arc shape toward the back side so as to form a loop with an open tip. The arm part AR has an elastic structure like a spring and has a restoring force that does not detach once it is wound around the user's thigh during wearing. The user's thigh corresponds to, for example, the "limbs" defined in the claims.

[0025] The battery 60 is housed inside the waterproof structure and supplies the electric power necessary for the operation of the EMS thigh trainer 1 to the circuit board assembly 52, the vibration motor 54 (see FIGS. 3 and 4), etc. The battery 60 is also connected to a battery charging port 62 (see FIG. 19) provided on the back side of the central region (see the symbol TF in FIG. 8) of the elastic insulating sheet cover 80 as shown in, for example, FIG. 2(F), and can be charged by receiving power supply from an external power source via a charging cable according to the user's operation. The battery 60 corresponds to, for example, the "chargeable secondary battery" defined in the claims.

[0026] The operation unit 30 is provided, for example, on the top surface side of the main body part MR of the main body case 10, and has operation keys 32a to 32c connected to the circuit board assembly 52. It generates a signal according to the user's operation and outputs it to the circuit board assembly 52.

[0027] The circuit board assembly 52 is housed inside a waterproof structure, supplied with power from the battery 60, generates a drive pulse signal according to the user operation via the operation unit 30, and supplies it to the conductive elastic sheet pieces 70A and 70B. The circuit board assembly 52 is also connected to the vibration motor 54, and generates a drive signal according to the user operation, for example, in conjunction with the user operation, and supplies it to the vibration motor 54 to drive it. The circuit board assembly 52 corresponds to the "circuit board" defined in the claims, for example.

[0028] The two conductive sheet pieces 70A and 70B are respectively provided on the back surface side of the main body case 10 by the arm parts AR1 and AR2 of the main body case 10 so as to be connected to the main body part MR, and are electrically connected to the circuit board assembly 52 to receive the supply of the EMS drive pulse signal and send out the EMS current.

[0029] The insulating sheet cover 80 is provided on the back surface side of the main body case 10 with the conductive sheet pieces 70A and 70B sandwiched therebetween, thereby preventing the user's training target area, the thigh in this embodiment, from directly contacting the conductive sheet pieces 70A and 70B.

[0030] A plurality of through holes H are formed in the insulating sheet cover 80. As a result, the user's body is prevented from directly contacting the conductive sheet pieces 70A and 70B at locations where the through holes H are not formed. On the other hand, a gap is formed between the user's body and the conductive sheet pieces 70A and 70B at locations where the through holes H are formed, and water (hot water) enters the gap due to use in water. The water (hot water) in this gap functions as a conductor, forms an electric current path for mutual connection with the user's body, and the EMS current sent out from the conductive sheet pieces 70A and 70B flows to the user's training target area, the thigh in this embodiment, to exert a training effect.

[0031] (2) Detailed Configuration of Each Part The main body case 10 is formed of a material having electrical insulation properties, such as a hard rubber PC material.

[0032] In the central part MR of the main body case 10, the back surface is open, and a closed space is formed between the top surface TF of the elastic insulation sheet cover 80 and the face cover 12, and an operation key 32 and a waterproof structure are provided in this closed space.

[0033] The waterproof structure mainly includes a waterproof cover 42 and a waterproof box 46 which are firmly locked by screws B2 etc. with a waterproof ring 44 in between, and on the back surface side, they are locked to the top surface TF of the elastic insulation sheet cover 80 by screws B4 etc. Further, after aligning the through-hole 32H of the face cover 12 with the operation key 32, the operation key 32 is sandwiched and locked to the face cover 12 by screws B6 etc.

[0034] A light guide 34, a circuit board assembly 52, a battery 60, and a vibration motor 54 are accommodated in the waterproof structure. In the waterproof box 46, wirings (not shown) for electrically connecting with the conductive elastic sheet pieces 70A, 70B are provided, one ends of which are connected to the circuit board assembly 52 via metal posts MP4, and the other ends of which are connected to the fitting recesses FPA, FPB with the conductive elastic sheet pieces 70A, 70B. A pair of metal posts MP2, MP4 are provided on the waterproof box 46 respectively. The metal post MP4 is erected so as to correspond to the position of the output terminal of the EMS circuit in the circuit board assembly 52. The metal post MP2 is erected so that the top surface side corresponds to the position of the input end of the battery 60 and the back surface side corresponds to the position of the battery charging port 62. The circuit board assembly 52 sandwiches the vibration motor 54 and the battery 60, and after alignment between the power input end (not shown) and the battery 60, between the metal post MP4 and the output end of the circuit board assembly 52, and between the metal post MP2 and the battery charging port 62, it is locked to the waterproof box 46 by screws B10 etc. The vibration motor 54 is pre-connected to the vibration motor drive circuit of the circuit board assembly 52 by a wiring (not shown).

[0035] As described above, fitting recesses FPA and FPB are provided at both left and right ends of the waterproof box 46. Corresponding to these shapes, convex portions PTA and PTB are formed at one ends of the conductive elastic sheet pieces 70A and 70B. By fitting the convex portions PTA and PTB into the fitting recesses FPA and FPB along the left and right arm portions AR on the back surface side of the main body case 10, the conductive elastic sheet pieces 70A and 70B are connected to the waterproof box 46 and electrically connected to the EMS circuit in the circuit board assembly 52.

[0036] A plurality of LEDs 56 are arranged on the circuit board assembly 52. On the top surface of the waterproof cover 42, transparent light emitting posts 58 corresponding to these LEDs 56 are erected. Alignment is performed between the LEDs 56 and the light emitting posts 58, and the circuit board assembly 52 is locked to the waterproof cover 42 with the light guide 34 interposed therebetween.

[0037] Figs. 5 to 7 are examples of perspective views showing the waterproof structure in more detail. As shown in Fig. 5, five light emitting posts 58a to 58e corresponding to the five indicators 56 are provided on the top surface of the waterproof cover 42, slightly closer to the outer periphery than the center. In the center, three soft rubbers SR1a, SR2, and SR1b corresponding to the top surface shapes of the three operation keys 32 are provided. The entire waterproof structure is formed of hard rubber for both the waterproof cover 42 and the waterproof box 46, and the three soft rubbers SR1a, SR2, and SR1b corresponding to the operation keys 32 are also integrally molded with the hard rubber, thereby satisfying the IPX8 waterproof requirement in this embodiment.

[0038] As shown in Fig. 6, on the back surface side of the waterproof box 46, the back surface 62 of the metal post MP2 and the back surfaces 68A and 68B of the metal posts MP4 are exposed, but these are also integrally molded with the hard cover of the waterproof box 46, satisfying the IPX8 waterproof requirement in this embodiment.

[0039] Referring to the exploded perspective view of FIG. 7, a step ST having a shape corresponding to the outer periphery of the bottom surface of the base of the waterproof cover 42 is provided on the top surface of the waterproof box 46. After winding the waterproof ring 44 around the groove between the step ST and the outer periphery of the top surface, the waterproof cover 42 is mounted on the waterproof box 46, and then the waterproof box 46 is firmly locked to the waterproof cover 42 using screws B4 or the like. Thereby, waterproof requirements at a high level, for example, IPX8, are satisfied.

[0040] Referring to the schematic diagram of FIG. 8, the main electrical configuration of the EMS thigh trainer 1 will be described.

[0041] The operation unit 30 is electrically connected to the circuit board assembly 52 and sends a command signal to the circuit board assembly 52 according to a user operation. The circuit board assembly 52 is electrically connected to the battery 60, the battery charging port 62, the conductive elastic sheet pieces 70A, 70B, and the vibration motor 54.

[0042] The circuit board assembly 52 includes a regulator circuit C2, an EMS circuit C4, a motor drive circuit C6, indicator circuits C8, C10, and a charging circuit C12. The regulator circuit C2 receives power supply from the battery 60 and supplies a stable 5V voltage to the EMS circuit C4. The EMS circuit C4 generates a high-voltage pulse signal of a specific frequency from the 5V voltage supplied by the regulator circuit C2 and outputs it to the conductive elastic sheet pieces 70A, 70B. The conductive elastic sheet pieces 70A, 70B are supplied with a high-voltage pulse signal from the EMS circuit C4 and selectively send an EMS current to the user's thigh through water as a conductor. The term "selectively send" means that the EMS current is not sent at the contact surface with the elastic insulating sheet cover 80, but when a conductive liquid, such as water (hot water) in a bathtub, fills the through hole H formed in the elastic insulating sheet cover 80, this water becomes a conductor and the conductive elastic sheet pieces 70A, 70B and the user's body are electrically connected to form an electrical path for interaction. Therefore, it has the technical meaning that the EMS current is sent from the through hole H of the elastic insulating sheet cover 80 to the user's body, in this embodiment, the thigh.

[0043] Here, the through holes H are arranged in such a manner that the EMS current is output substantially uniformly to the user's body surface facing the conductive elastic sheet pieces 70A and 70B. More specifically, as shown in FIGS. 1 to 3, they are formed at equal intervals so as to have a rectangular shape and form a mesh. This shape and arrangement mode are not limited to "rectangular and equal intervals", and as long as the EMS current is output substantially uniformly to the user's body surface to be exercised, for example, it may have a triangular or circular shape, or other arrangements may also be possible.

[0044] The motor drive circuit C6 receives power supply from the battery 60, generates a motor drive current, supplies it to the vibration motor 64 to drive it, whereby the vibration motor 64 vibrates together with the main body case 10, for example, vibrates for each operation of the operation unit 30 to surely let the user recognize that the user has operated, or vibrates based on a command signal from the circuit board assembly 52 when the remaining charge amount of the battery 60 becomes a predetermined value or less (for example, 3.0 v or less), and can warn the user of the necessity of charging. The circuit board assembly 52 further includes a voltage monitor circuit (not particularly shown), detects the voltage of the battery 60, and generates a command signal for vibrating the vibration motor 64 a plurality of times, for example, 3 times, and outputs it to the motor drive circuit C6 when the voltage falls below a predetermined voltage value.

[0045] When a charging cable is inserted into the battery charging port 62 and connected to an external power source, the charging circuit C12 detects this and controls the start and stop of charging of the battery 60.

[0046] The indicator circuits C8 and C10 each include a plurality of blue LEDs and white LEDs, emit light of different colors at multiple levels of intensity according to the application, and transmit information to the user by emitting light from the light emission window W through the transparent light emission posts 58a to 58d and the light guide 34. In the present embodiment, white indicates the battery remaining amount when the power is on and / or during charging in, for example, five levels. More specifically, when the main body power is turned on, the remaining charge amount is conveyed to the user by the number of LEDs that light up for about 2 seconds. Also, blue indicates the EMS stimulation level during operation in, for example, 10 levels from 1 to 10. More specifically, when at levels 1, 3, 5, 7, and 9, the corresponding LEDs blink, and when at level 0 (no stimulation), the five blue LEDs blink in sequence.

[0047] Figures 9 to 14 respectively show examples of more specific circuit configurations of the charging circuit C12, the indicator circuit C8, the indicator circuit C10, the motor drive circuit C6, the regulator circuit C2, and the EMS circuit C4. The charging circuit C12 includes MOSFETs Q12 and Q13, diodes D8 and D9, resistors R19, R20, and R23, capacitors C6 and C7, and a charging IC U3. The indicator circuit C8 includes blue light-emitting diodes LED1 to LED5 for gear indicators, and the indicator circuit C10 includes white light-emitting diodes LED6 to LED10 for charging indicators. The motor drive circuit C6 includes an NPN transistor Q11, a diode D7, and resistors R18 and R21. The regulator circuit C2 includes an inductor L2, capacitors C4 and C5, resistors R15 and R25, and a boost IC U2. Also, the EMS circuit C4 includes an inductor L1, a diode D1, a MOSFET Q6, a transistor Q10, resistors R2, R11, R16, R17, and a high-voltage EMS circuit boost section. The EMS circuit boost section includes a capacitor C1 and master IC drive transistors Q7 and Q8.

[0048] Figure 15 is a (EMS) waveform diagram showing an example of a high-voltage pulse signal supplied from the EMS circuit C4 to the conductive elastic sheet pieces 70A and 70B. The pulse signal shown in the figure is generated at a period of about 93 seconds and gives stimulation to the thigh muscles at an effective frequency of about 5 - 27 Hz.

[0049] A method of using the thigh trainer 1 of this embodiment will be described with reference to FIGS. 16 to 19.

[0050] First, wind the thigh trainer 1 around a desired location within the thigh region shown by the dotted line in FIG. 16. As for the winding method, as shown in FIG. 17(A), the operation unit 30 may be wound upward, that is, facing the user's face, or as shown in FIG. 17(B), the operation unit 30 may be wound horizontally, for example, facing the left side of the user, or as shown in FIG. 17(C), the operation unit 30 may be wound downward. As described above, since the main body case 0 has a restoring force, there is no need to further tighten it with other bands or the like.

[0051] Next, enter a bathtub filled with water or hot water, and submerge the thigh trainer 1 together with the user's body into the bathtub. As a result, water or hot water enters between the thigh trainer 1 and the user's thigh, and the through holes H in the elastic insulating sheet cover 80 are filled with water or hot water.

[0052] Next, start the thigh trainer 1 by operating the operation unit 30 shown in FIG. 18 and adjust the EMS current. As shown in the figure, operation keys 32a to 32c are provided almost at the center of the top surface of the main body portion MR of the main body case 10, and the level operation keys 32a and 32c are arranged on the left and right of the power on / off operation key 32b, respectively. The level operation key 32c is a + button operation unit, and the level operation key 32a is a - button operation unit. If the power on / off operation key 32b of the operation unit 30 is long-pressed (for example, about 2 seconds), the thigh trainer 1 will be in the on state. After the power is turned on, the user can appropriately press the level operation key 32a and the level operation key 32c to flow an EMS current of a desired intensity to the thigh.

[0053] If you want to stop the operation, press and hold the power on / off operation key 32b again (for example, for about 2 seconds), and the thigh trainer 1 will turn off. When it is in the on state, the vibration motor 54 causes relatively short vibrations to occur multiple times, for example, only 2 times, in the main body case 10. When it is in the off state, the vibration motor 54 causes a relatively long vibration to occur, for example, only 1 time, in the main body case 10. Thus, the user can recognize the on / off state of the thigh trainer 1 based on the vibration generated in the main body case 10.

[0054] During use, when the remaining charge of the battery 60 reaches a predetermined value or less (for example, 3.0 v or less), for example, based on a control signal from the circuit board assembly 52, the vibration motor 54 automatically vibrates a plurality of times briefly, for example, 3 times, and the vibration is transmitted to the main body case 10. Thus, the user can recognize that the remaining charge of the battery 60 has reached a predetermined value or less. For example, after stopping use, as shown in FIG. 19, a USB cable 102 connected to a predetermined power source is connected to the battery charging port 62, and the battery 60 is charged. During charging, the white light-emitting diodes LED6 to LED10 are lit, and for example, after about 2 hours, when the charging is completed, these white light-emitting diodes turn off.

[0055] As described above, according to the present embodiment, a high-voltage pulse signal is supplied from the conductive elastic sheet pieces 70A and 70B through water (hot water) as a good and homogeneous conductor, and the EMS current is evenly sent to the user's thighs. Therefore, safe and effective training can be performed, bringing a comfortable experience to the user. The EMS thigh trainer 1 of the present embodiment has both hydrophilicity in that the circuit for generating and sending the EMS current maintains conductivity when placed in water, and hydrophobicity in that it dehydrates immediately when removed from water and does not require draining water like a fabric product.

[0056] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the above description has been made for the easy understanding of the invention and does not limit the scope of the claims of the present invention. For example, in the above embodiment, a training device for wrapping around the thigh to exercise the thigh muscles is cited. However, the training device of the present invention is applicable not only to the thigh but also to other limbs, such as the arm, and to the mode of wrapping around the abdomen.

[0057] A person skilled in the art can implement the present invention with various modifications within the scope not departing from the scope and spirit of the present invention, and can make various changes, equivalent substitutions, or improvements along the spirit of the present invention without departing from the scope of the claims.

Explanation of Reference Numerals

[0058] 1: EMS Thigh Trainer 10: Main Body Case 12: Face Cover 30: Operation Unit 32: Operation Key 32a, 32c: Level Operation Keys 32b: Power On / Off Operation Key 34: Light Guide 36a~36d: Light Pillars 40: Waterproof Structure Part 42: Waterproof Cover 44: Waterproof Ring 46: Waterproof Box 48A, 48B: Metal Posts 52: Circuit Board Assembly 54: Vibration Motor 56, 56a~56d: LEDs 60: Battery 62: Battery Charging Port 70A, 70B: Conductive Elastic Sheet Pieces 80: Elastic Insulating Sheet Cover AR1, AR2: Arm Parts C2: Regulator Circuit C4: EMS Circuit C6: Motor Drive Circuit C8, C10: Indicator Circuit C12: Charging Circuit H: Through-Hole MR: Main Body ST: Step SR1, SR1b, SR2: Soft Cover

Claims

1. a main body case including a main body having a waterproof structure and provided with an operation unit, and two arms extending in an arc shape from both ends of the main body to a rear side so as to form a loop with an open tip; a rechargeable secondary battery housed inside the waterproof structure; a circuit board that is housed inside the waterproof structure, receives power from the secondary battery, and generates a drive pulse signal in response to a user's operation of the operation unit; Two conductive sheet pieces are provided on the rear side of the arm portion so as to be connected to the main body portion, and receive the drive pulse signal from the circuit board and output an EMS current; an insulating sheet cover provided on the rear surface side of the main body case with the conductive sheet pieces sandwiched therebetween, the insulating sheet cover having a plurality of through holes; Equipped with The arm portion and the insulating sheet cover have elasticity that allows them to be wrapped around the abdomen or limbs of a user, When the through-hole is filled with a conductive liquid, the liquid acts as a conductor to enable the transmission of an EMS current from the conductive sheet piece. EMS training device.

2. The EMS training device according to claim 1 , wherein the through holes are arranged in such a manner that the EMS current is output approximately uniformly to the surface of the user's body facing the conductive sheet piece.

3. The EMS training device according to claim 1, further comprising a vibration motor that is driven based on a drive signal generated by the circuit board in response to operation of the operating unit to vibrate the main body case.

4. 2. The EMS training device according to claim 1, further comprising a secondary battery charging port provided on the main body case and equipped with a waterproof plug that can be connected to an external power source.

5. 2. The EMS training device according to claim 1, wherein the operation unit has a plurality of level operation units for adjusting a frequency level of the drive pulse signal, and a power on / off operation unit.

6. 2. The EMS training device according to claim 1, wherein the main body case is made of a hard rubber PC material, the conductive sheet piece is made of a conductive silicone material, and the insulating sheet cover is made of a non-conductive silicone material.

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