JP7626441B2 - Training equipment and muscle training method - Google Patents

Description

The present invention relates to a training device and a muscle training method.

Dumbbells, a type of gymnastics equipment with metal weights attached to both sides of a metal bar used for muscle training, are known (Patent Document 1). Wristband-type muscle training equipment is also known (Patent Document 2).

Japanese Utility Model Application Publication No. 60-094252 Utility Model Registration No. 3099320

When the traditional dumbbell described in Patent Document 1 is swung around at high speed, centrifugal force acts on the metal weight, making it difficult to control and placing a large strain on the wrist. On the other hand, when the wristband described in Patent Document 2 is used, swinging the arm around does not make it difficult to control, but it is difficult to provide a wristband that is as heavy as a dumbbell and easy to put on and take off.

Therefore, the present invention aims to provide a training device that is sufficiently heavy yet easy to put on and take off, stable to handle, and does not place excessive strain on the wrists.

To solve the above problems, the present invention provides a cylindrical training device with an internal handle that can be supported not only by the palm but also by the forearm.

In detail, the present invention is a training device that is held by the forearm and used for the purpose of training each muscle of the upper body of the user, and is a thick metal cylinder that includes a cylindrical portion into which the user can insert the hand and forearm from an opening on one side, and a gripping bar that can be held by the palm inserted into the cylindrical portion and is fixed at two points that are symmetrical with respect to the center of the circle when the cylindrical portion is cut in a cross section along the short side, and the gripping bar is provided inside the cylindrical portion, on the opposite side of the opening on one side.

A user of such a training device can easily use it for strength training by inserting their forearm into the cylindrical part from the opening on one side and holding the gripping bar in their palm. In addition, the gripping bar is fixed at two points that are symmetrical with respect to the center of the circle when the cylindrical part is cut in a cross section along the short side, so it is easy to balance when gripping, and the training device does not shake during strength training, placing unnecessary strain on the user's body.

The gripping rod may be provided at a location inside the cylindrical portion where the wrist is positioned at the center of gravity of the cylindrical portion when the user grips it with the palm of his/her hand.

By making the user's wrist the center of gravity, the torque applied to the wrist when twisting the arm to rotate the training equipment is reduced, so that even if such an exercise is incorporated into training, a large force is not applied to the wrist, making it easier to control. Therefore, even if rotational movements are woven into strength training, the user does not need to concentrate on the wrist to control the training equipment.

The inner diameter of the cylindrical portion may be 13 cm or more and 17 cm or less.

By making the inside diameter of the cylindrical part 13 cm or more and 17 cm or less, the forearm can be easily inserted and removed, and the weight can be supported by the forearm wrapped in the sponge sheet, which reduces shaking of the wrist.

The cylindrical portion and gripping rod may be made of cast iron, weighing between 5 kg and 20 kg in total.

By setting the weight of the training equipment to between 5 kg and 20 kg, it is possible to train muscles with an optimal load while maintaining the rigidity of the training equipment.

The gripping bar may have grooves to aid in gripping.

This configuration makes it easier to hold the grip bar in the palm of your hand and makes the grip bar less likely to slip during strength training, improving the stability of the training device.

A sponge sheet may be provided on the inside of the cylindrical portion at the position where the forearm comes into contact.

If a sponge sheet is attached to the inside of the cylindrical part on the wrist side, the weight of the training equipment is also applied to the forearm via the sponge sheet, and is not concentrated on the palm, allowing you to continue training effectively. In addition, there is no need to prepare a separate sponge sheet that has the same effect.

The outside of the cylindrical portion may be covered with an elastic material.

Even if the training device comes into contact with another object while in use, the elastic force of the elastic member can prevent damage to the other object.

The training method using this training device may be a muscle training method in which the forearm is inserted into the cylindrical portion of the training device, the gripping bar is grasped with the palm of the hand, the forearm is brought into contact with the inside of the cylindrical portion via a sponge sheet, and the motion of moving the forearm is repeated multiple times with periods of rest.

By using this training device, you can exercise the muscles of your upper body in the same way as when using existing dumbbells. Furthermore, because the weight of this training device is supported not only by the palm but also by the forearm, it is possible to provide a new stimulus to the muscles being trained compared to when using existing dumbbells.

The muscle training method using this training device may be a muscle training method in which the movement of the forearm is quickly repeated.

The weight of this training device is supported not only by the fist but also by the forearm, and unlike existing dumbbells, the weight is not unevenly distributed, so it does not wobble even when handled in a manner similar to bodyweight training. This allows for strength training that includes quick movements.

The muscle training method using this training device may be a muscle training method in which the movement of the forearm includes a movement of rotating the arm.

This training device does not have unevenly distributed weight like existing dumbbells. This makes it easier to maintain stability even when swinging the training device around. This makes it easy to incorporate rotational movements into strength training.

The muscle training method using this training device may be a muscle training method in which the movement of the forearm includes a twisting movement of the arm.

Because this training device is cylindrical, unlike existing dumbbells, even if the arm is rotated like a screw, force is not concentrated in a specific direction and is easy to control. In addition, with this training device, the user's wrist is the center of gravity, so force is not easily applied to the user's wrist due to the rotation. Therefore, arm twisting movements can be easily incorporated into strength training.

When a user puts their arm through the training device of the present invention and grasps the handle inside, the weight is distributed to the forearm as well as the palm, and even when swinging it around, excessive strain is not placed on the wrist, allowing the user to stably perform the same exercises as with existing dumbbells and easily perform strength training incorporating movements that are difficult to perform with existing dumbbells.

FIG. 1 is a perspective view of the appearance of a training device according to an embodiment. FIG. 2 is a cross-sectional view of the training device according to the embodiment. FIG. 3 is a diagram showing a state in which the forearm is inserted into the training device according to the embodiment and the grip bar is gripped. FIG. 4 is a diagram showing a method for inserting a forearm into the training device according to the embodiment and fixing it with a sponge sheet. FIG. 5 is a diagram illustrating the first training method. FIG. 6 is a diagram showing the second training method. FIG. 7 is a diagram showing a third training method. FIG. 8 is a diagram showing the fourth training method. FIG. 9 is a diagram showing the fifth training method. FIG. 10 is a diagram showing the sixth training method. FIG. 11 is a diagram showing the seventh training method. FIG. 12 is a diagram showing the eighth training method. FIG. 13 is a diagram showing the ninth training method. FIG. 14 is a diagram showing a tenth training method that is newly enabled by the training device according to the embodiment. FIG. 15 is a diagram showing an eleventh training method that is newly enabled by the training device according to the embodiment. FIG. 16 is a diagram showing a twelfth training method that is newly enabled by the training device according to the embodiment.

Below, a training device according to an embodiment of the present invention and a training method using the training device will be described with reference to the drawings. Note that the configurations of the following embodiments are examples, and the present invention is not limited to the configurations of these embodiments.

<Embodiment>
FIG. 1 is a perspective view of the appearance of a training device according to an embodiment. The training device 1 is a training device used mainly for the purpose of training the muscles of the upper body of a user.
is a thick and heavy cylinder made of metal, more specifically cast iron. The cylinder 2 plays the role of a weight in an existing dumbbell. A grip bar 3 is present on either side of the inside of the cylinder 2 in the longitudinal direction and crosses the cylinder 2. The grip bar 3 is a rod-shaped structure that can be held by the palm of the user, and in this embodiment, is fixed to the cylinder 2 by welding. On the side without the grip bar 3, a one-side opening 5 is opened into which the hand and forearm can be inserted. The user can insert his or her hand and forearm into the one-side opening 5 and firmly grip the grip bar 3 with the palm to perform various muscle training. In the present application, in the longitudinal direction of the cylinder 2, the side where the one-side opening 5 exists is the insertion opening side, and the side where the grip bar 3 exists, which is closer to the opposite side of the one-side opening 5, is the grip bar side.

Figure 2 is a cross-sectional view of the training device according to the embodiment. The cylindrical portion 2 is a cylinder through which the forearm can pass, and the gripping bar 3 is fixed by welding at two points on the upper part of the cylindrical portion 2 (the side opposite to where the arm goes, the gripping bar side) that are symmetrical with respect to the center of the circle when the cylinder is cut in the short direction. The gripping bar 3 may have a groove engraved on it to assist in gripping, and the groove can make it easier to grip. In addition, a grip tube made of an elastic material may be attached. The thickness of the cylindrical portion 2 is uniform around the circumference, and when the forearm is inserted from the side of the opening 5 on one side and the center of the gripping bar 3 is supported and lifted, the opening 5 on one side faces vertically and comes to rest. Due to this feature, in this training device, it is easy for the user to grip the gripping bar 3 and maintain balance.

The inner diameter of the cylindrical portion 2 is, for example, 15 cm. It is also desirable that the inner diameter of the cylindrical portion 2 is 13 cm to 17 cm. If the inner diameter of the cylindrical portion 2 is 13 cm or more, the user can easily insert the forearm into the one-side opening 5 of the training device 1. If the inner diameter of the cylindrical portion 2 is 17 cm or less, even if the user swings the training device around, the weight is distributed to the forearm via the sponge sheet described below, so that excessive force is not applied to the wrist. The weight of the training device 1 is the sum of the weight of the cylindrical portion 2 and the weight of the gripping rod 3, and is, for example, 10 kg. The weight of the training device 1 can be changed by changing the thickness or length of the cylindrical portion 2. Depending on the muscle strength of the user and the type of muscle fiber to be trained, various weights of the training device 1 can be provided, for example, in the range of 5 kg to 20 kg. In addition, holes and recesses can be made on the surface side of the cylindrical portion 2 to improve aesthetics. The length of the cylindrical portion 2 is, for example, 25 cm, and at this length, a user wearing the training device 1 can easily bend their elbow and support their weight on the side of their forearm. The length of the cylindrical portion 2 can also be changed depending on the weight of the training device 1.

Figure 3 is a schematic diagram showing a state in which a forearm is inserted into a training device according to an embodiment and a gripping bar is gripped. The user inserts the forearm 12 into the training device 1 and grips the internal gripping bar 3 with the palm 10. The gripping bar 3 is provided at a location such that when the user grips the center of the gripping bar 3 with the palm, the center of gravity of the training device 1 including the forearm is near the user's wrist 11. Even if the user rotates the training device 1 by twisting the forearm in this state, the torque associated with the rotation is unlikely to be applied to the user's wrist 11. Therefore, even if the user rotates the training device 1 by twisting the arm, the user can easily continue to grip the gripping bar 3, and can perform muscle training including rotational movements without putting stress on the wrist.

4 is a diagram showing a method of inserting and fixing a forearm into a training tool according to an embodiment. The user wraps the sponge sheet 4 around the forearm, inserts the hand and forearm through one side opening 5 of the training tool 1, and grasps the gripping bar 3. As described above, the gripping bar 3 is provided at a position where the center of gravity is easily balanced. In addition, since the forearm 12 contacts the cylindrical portion 2 through the sponge sheet 4, the weight of the training tool 1 is distributed not only to the hand but also to the forearm, and the user can hold the training tool 1 not only to the hand but also to the forearm. Therefore, the user can perform the necessary training with the feeling that the training tool 1 and the forearm 12 are integrated.

The sponge sheet 4 is a thick, spongy sheet made of polyester, polyurethane, etc., and is wrapped around the forearm when wearing the training device 1. The sponge sheet 4 can be used in multiple layers to optimize the fit depending on the thickness of the user's forearm. The number of sponge sheets 4 may be increased or decreased depending on the intensity of the exercise. These adjustments may be made by replacing sponge sheets 4 with different thicknesses.

The material of the cylindrical portion 2 and the gripping rod 3 is not necessarily limited to cast iron. The cylindrical portion 2 and the gripping rod 3 may be made of a metal or alloy that has sufficient rigidity and strength as a training tool and a specific gravity that is heavy enough for muscle training purposes, and a material suitable for muscle training can be selected and used.

The outside of the cylindrical portion 2 may be coated with an elastic material such as rubber. The training device 1 according to the embodiment is highly stable when worn compared to its weight and can be quickly handled, so that it may come into contact with other objects at high speeds. If the training device 1 is covered with an elastic material, even if the training device 1 comes into contact with another object during use, damage to the other object can be prevented. In addition, noise is less likely to be generated when the training device 1 is placed on the floor.

In addition, the sponge sheet 4 may be attached in advance to the forearm contact position on the inside of the cylindrical portion 2, rather than being wrapped around the forearm during training. In this way, the user does not need to prepare a separate sponge sheet 4 when using the training device 1 for strength training.

<Effects of the Invention>
In conventional dumbbells, weights are attached to both sides of the bar, so strong centrifugal force is generated when the arm is rotated, but in the training device 1 according to the embodiment, the weight is in the cylindrical part 2, so there is no wobble even when rotated and stability is maintained. Also, since the weight of the device is supported not only by the palm but also by the forearm, the load is not concentrated on the wrist, and muscle training (training) including quick movements can be performed in a manner similar to bodyweight training.

In the field of strength training, a mechanism known as the "principle of awareness" (mind-muscle connection) has been researched and reported. This principle posits that focusing one's attention on the muscle being trained increases muscle activity and improves the effectiveness of training. In the training device 1 according to the embodiment, the center of gravity is at the wrist, so that the wrist is less likely to be burdened even when performing complex exercises, and the weight can be received by the forearm via the sponge sheet 4. Therefore, the user does not need to distribute his or her attention to control the training device 1 during strength training. As a result, the user can focus his or her attention on the target muscle, and the principle of awareness can improve the effectiveness of training.

<Application of existing training methods>
Using the training tool 1 according to the embodiment, muscle training can be performed by applying the motions performed with existing dumbbells. A specific example of an existing muscle training method using the training tool 1 according to the embodiment is shown below. In the following training performed with existing dumbbells, it is common to move the arm slowly with a relatively simple motion, since it may be difficult to control a heavy dumbbell when it is moved at high speed. The training tool 1 according to the embodiment is easy to control, and motions including quick movements can be incorporated into muscle training. In addition, since the weight of the training tool 1 is supported not only by the palm but also by the forearm, a new load different from that of existing dumbbells can be applied to the target muscle. In addition, using the training tool 1, a motion of rotating the forearm in a screw shape can be easily incorporated. Therefore, a newer load can be applied to the target muscle, and the training effect can be improved.

<Training Method 1>
Fig. 5 is a diagram showing a first training method. Fig. 5 shows a training method called side raise. A user wearing the training device 1 according to the embodiment on both arms slowly repeats a posture of standing with arms lowered at shoulder width and a posture of stretching both arms out to the side (approximately parallel to the floor) multiple times, stopping at the end. This method can train the shoulder muscles, mainly the deltoids.

<Training Method 2>
FIG. 6 is a diagram showing a second training method. FIG. 6 shows a twist-type exercise. A user wearing the training device 1 according to the embodiment on both arms slowly repeats a posture of leaning forward with arms lowered and facing each other, and a posture of raising the arms by turning the elbows outward, multiple times, with a pause at the end. This method can train the posterior deltoid and upper back. This training may be a training method in which both arms are raised simultaneously with the upper body tilted forward (rear raise). This training movement may also include a movement of twisting the arms.

<Training Method 3>
Fig. 7 is a diagram showing a third training method. Fig. 7 shows a training method called bent-over row. A user wearing the training device 1 according to the embodiment on both arms slowly repeats a posture of pushing the hips back, sticking out the chest, lowering the hands, and bending the arms while raising the hands to the sides of the chest, stopping at the end. This method can train the back muscles, mainly the latissimus dorsi.

<Training Method 4>
Fig. 8 is a diagram showing a fourth training method. Fig. 8 shows a training method called curl. A user wearing the training device 1 according to the embodiment on both arms slowly repeats a posture of standing with feet shoulder-width apart and back straight, and a posture of bending elbows and raising fists in front of shoulders, stopping at the end. One arm or both arms may be exercised at the same time. This method allows the upper arm muscles, mainly the biceps, to be trained.

<Training Method 5>
Fig. 9 is a diagram showing a fifth training method. Fig. 9 shows a training method called pullover. A user wearing the training device 1 according to the embodiment on both arms lies on his/her back on a work bench, and slowly repeats a posture of sticking out his/her arms above his/her chest and a posture of sticking out his/her arms to the top of his/her head, which is an extension of the midline, several times, stopping at the end. One arm or both arms may be exercised at the same time. This method can train the latissimus dorsi and pectoralis major muscles.

<Training Method 6>
Fig. 10 is a diagram showing a sixth training method. Fig. 10 shows a training method called fly. A user wearing the training device 1 according to the embodiment on both arms lies on his/her back on a work bench, and slowly repeats a posture in which both arms are pushed out over the chest and a posture in which both arms are spread out to the sides (approximately parallel to the floor) several times, stopping at the end. One arm or both arms may be exercised at the same time. This method allows the muscles of the chest, mainly the pectoral muscles, to be trained.

<Training Method 7>
Fig. 11 is a diagram showing a seventh training method. Fig. 11 shows a training method called French press. A user wearing the training device 1 according to the embodiment on both arms slowly repeats a posture of raising one arm above the head and a posture of bending the elbow and lowering the forearm behind the head several times, stopping at the end. This method can train muscles, mainly the triceps.

<Training Method 8>
Fig. 12 is a diagram showing an eighth training method. Fig. 12 shows a training method called kickback. A user wearing the training tool 1 according to the embodiment slowly repeats a posture of leaning forward with elbows bent at right angles and forearms facing the floor, and a posture of thrusting the forearms behind the body without changing the position of the elbows, stopping at the end. This method can also be performed with one knee and one arm not wearing the training tool 1 resting on a training bench. This method can train the triceps.

<Training Method 9>
Fig. 13 is a diagram showing a ninth training method. Fig. 13 shows a training method called lying extension (lying triceps extension). A user wearing the training device 1 according to the embodiment lies on his/her back on a training bench, stretching his/her arms above his/her chest, and bending his/her arms so that his/her forearms are diagonally above his/her head, slowly repeating this position several times while stopping at the end. This method can train the triceps.

<New training method>
It is difficult to use existing dumbbells to perform training that includes quick rotational movements or quick linear movements because the weight is subjected to a strong centrifugal force, causing the wrist to shake. However, in the training device 1 according to the embodiment, the part corresponding to the weight is the cylindrical part 2, and the weight can also be supported by the forearm, so that the weight is less likely to shake even when centrifugal force is applied. Therefore, the user can use the training device 1 according to the embodiment to train in a manner similar to bodyweight training, and can concentrate more on the target muscle. In addition to the muscle training that applies the existing dumbbell exercise described above, the training device 1 according to the embodiment can also perform the following new muscle training.

<Training Method 10>
14 is a diagram showing a tenth training method newly enabled by the training device according to the embodiment. A user wearing the training device 1 according to the embodiment on both arms spreads his/her sides, stretches his/her forearms forward, and repeats the motion of quickly rotating them on the spot. Alternatively, the user may hold both forearms parallel to the chest and parallel to the ground, and rotate both arms alternately in front of the chest.

<Training Method 11>
15 is a diagram showing an eleventh training method newly enabled by the training device according to the embodiment. A user wearing the training device according to the embodiment on both arms stands with arms lowered and shoulder-width apart, then raises one arm to shoulder level and repeats a motion of quickly swinging it behind the body (a motion similar to a back fist in karate).

<Training Method 12>
16 is a diagram showing a twelfth training method newly made possible by the training device according to the embodiment. A user wearing the training device 1 according to the embodiment on both arms stands shoulder-width apart, puts one foot forward, raises a fist (wearing the training device 1) in front of the chest, and repeats short punches like a rush in a boxing match. These new training methods can improve the coordination of the shoulders and arms, including the inner muscles.

The novel training method is not limited to the above. For example, the user can wear the training device 1, stand with shoulder width apart, and move both arms as if swimming the crawl or breaststroke. These movements can mainly train the rotator cuff.

The above describes the features of the training device according to the embodiment and the muscle training method using the training device, but the contents of the present invention can be further developed as follows. For example, the training device 1 can be made of hollow metal or resin, with a connecting hole to the outside in a part of it, and a removable cap can be attached to the connecting hole. When the user is training, they can open the cap and fill the inside with liquid or sand, allowing them to use the training device 1 with high stability easily. When training is not being performed, the liquid or sand stored inside can be drained, making it easy to handle when stored. Training device 1 in this form is easy to use, especially when training at home.

The embodiments and training methods disclosed above can be combined with each other.

1: Training tool 2: Cylindrical part 3: Grip part 4: Sponge 5: One-side opening 10: Palm part 11: Wrist 12: Forearm part

Claims (10)

A training device that is held by the forearm and used for the purpose of training each muscle of the upper body of a user,
A cylindrical portion which is a thick metal cylinder and into which a user's hand and forearm can be inserted from an opening on one side;
A gripping bar that is fixed at two points that are symmetrical with respect to a circular center when the cylindrical portion is cut in a cross section in the short direction and can be held by a palm inserted into the cylindrical portion;
Equipped with
The gripping rod is provided in the cylindrical portion on the opposite side of the opening on one side , and is provided in a portion inside the cylindrical portion where the wrist is located at the center of gravity of the cylindrical portion when the user grips the cylindrical portion with the palm.
Training equipment. The inner diameter of the cylindrical portion is 13 cm or more and 17 cm or less.
2. The training device of claim 1 . The cylindrical portion and the gripping rod are made of cast iron, weighing 5 kg or more and 20 kg or less in total.
3. A training device according to claim 1 or 2 . The gripping bar is provided with grooves to aid in gripping.
A training device according to any one of claims 1 to 3 . A sponge sheet is provided at the forearm contact position inside the cylindrical portion.
A training device according to any one of claims 1 to 4 . The outside of the cylindrical portion is covered with an elastic material.
A training device according to any one of claims 1 to 5 . A method for training a training device according to any one of claims 1 to 6 , comprising inserting a forearm into a cylindrical portion of the training device, gripping a gripping bar with a palm, and bringing the forearm into contact with an inner side of the cylindrical portion via a sponge sheet;
The motion of moving the forearm is repeated multiple times with pauses.
Strength training methods. The movement of the forearm is quickly repeated.
The muscle strength training method according to claim 7 . The movement of the forearm includes a movement of rotating the arm.
9. The muscle strength training method according to claim 7 or 8 . The movement of the forearm includes a movement of twisting the arm.
The muscle strength training method according to any one of claims 7 to 9 .

Images