WO2007000969A1

WO2007000969A1 - Training tool

Info

Publication number: WO2007000969A1
Application number: PCT/JP2006/312711
Authority: WO
Inventors: Naohiro Maki
Original assignee: Naohiro Maki
Priority date: 2005-06-27
Filing date: 2006-06-26
Publication date: 2007-01-04
Also published as: CN101208137B; US20100075819A1; JP3763840B1; JP2007000492A; CN101208137A; USD675686S1

Abstract

A training tool whose width spacing of grips when held by both hands is selectable, whose grippability is improved, and that can be used for various kinds of training and rehabilitation of body parts other than hands and feet. The training tool has a substantially laterally oblong frame shape as a whole and is formed by a pair of substantially parallelly opposed grip sections (1a) and a pair of substantially parallelly opposed grip sections (1b) that connect the ends of the grip sections (1a) and are arranged at a smaller spacing than the first grip sections (1a). The first grip sections (1a) are linear or a gently curved, and the second grip sections (1b) are formed such that they are, in a front view, bent in a bow shape and that their center portions are, in a plan view, slightly narrowed inward of the oblong frame so as to close to each other.

Description

Training equipment

Technical field

[0001] The present invention is used when performing muscle stretch training, muscle strength training, physical massage, physical fitness check, beauty diet training, hospital rehabilitation training, etc. Various types of training equipment that can be used in various ways.

Background art

Conventionally, as this type of training apparatus, as disclosed in Patent Document 1, a strong coil-shaped panel is connected between each of four cushioned bending pipe handles. There is a car-shaped, muscle-type training device that is shaped like a ring. In addition, as disclosed in Patent Document 2, there is a health ring having a surface uneven portion for performing massage so as to be inserted into a foot or arm and rolled. Furthermore, as disclosed in Patent Document 3, there is a health ring in which marbles are packed in an elastic donut-shaped mesh net bag. In addition, as disclosed in Patent Document 4, there is also a ring-shaped health device in which a plurality of balls are connected by a string-like connecting body made of a stretchable elastic member. Patent Document 1: Japanese Utility Model Publication No. 5-58161

Patent Document 2: JP 2000-157590 A

Patent Document 3: Japanese Patent Laid-Open No. 2003-33420

Patent Document 4: Japanese Patent Laid-Open No. 9-239065

Disclosure of the invention

Problems to be solved by the invention

[0003] However, in such a conventional training device, the shape itself is a donut shape or a circular shape, and the width interval when holding them with both hands is always a constant length. When parts with different width intervals were needed to accommodate different strength training, several different diameters had to be prepared. However, for objects with a small diameter, such as a gymnastic suspension ring, the distance between them when gripped with both hands. The grip is inferior because it is narrow. In addition, with such conventional ring-type training equipment, it is mainly limited to massage and training of hands 'arms and legs' legs, etc. Muscle stretch training and muscle strength training for other body parts It is inconvenient to use for body massage, etc. Considering other uses such as physical fitness check, beauty diet training, hospital rehabilitation training, etc., its application is difficult. Have a point.

[0004] Therefore, the present invention was created in view of the existing circumstances as described above, and by selecting the grip portion when gripping with both hands, the grip width interval of both hands can be changed, However, the grip when gripping with both hands is improved, and the body is pushed and pulled against each part of the body, the posture when using the middle waist 'sitting' bed, etc. The purpose is to provide various types of training equipment that can be used for various purposes such as muscle stretching training, muscle strength training, body massage, physical fitness check, beauty diet training, and rehabilitation training for hospitals.

Means for solving the problem

[0005] In order to solve the above-described problem, in the present invention, a pair of first grip portions la and the opposite ends of each of the first grip portions la are substantially parallel and opposed to each other! The first grip part la is narrower than the distance between each other, and a pair of second lip parts lb facing each other in a parallel manner, and the entire surface is flattened to present a substantially horizontally long rectangular frame. The first grip part la is formed in a straight or gentle curve shape, the second grip part lb is curved in an arc shape when viewed from the front, and the central parts are close to each other. It is characterized in that it is formed in a slightly narrowed shape toward the inside of the rectangular frame when viewed from the plane. Further, the first grip portion la has a substantially rectangular shape with a rounded connection portion with the second grip portion lb, and a wrist or ankle can be inserted into the rectangular frame. 1. A flexible grip cover 8 is attached to at least one of the second grip parts la and lb, or a weight body 5 is provided on one of the first grip parts la. be able to.

[0006] In the training apparatus according to the present invention configured as described above, a pair of first grits The second grip portion lb is narrower than the gap between the first grip portion 1a and the first grip portion 1a, and the second grip portion lb having a distance between the first grip portion 1a and the second grip portion. By selecting and changing one of the lbs, you can change the width of both hands when grasping with both hands. Also, the first grip part la, which is formed in a straight line or a gentle curved line, is curved in a bow shape by looking at the front force, and slightly in the inner direction of the rectangular frame as seen from the plane so that the central parts are close to each other. The second grip part lb, which is formed in a narrow shape, improves the grip when held with both hands, and the uneven shape of the second grip part lb with a curved part makes it possible to It enables multi-faceted training such as pushing, lifting, warping, and stretching.

Furthermore, a wrist, an ankle, etc. are inserted into the first grip portion la, and various usage patterns are selected by twisting, lifting according to each posture of the user, and the like.

The soft elastic grip cover 8 softens the other when pressed against each part of the user's body, and improves the feeling of use by the user. In addition, the weight body 5 provided in the first grip part la has no weight body 5 with one hand, and increases the centrifugal force when twisting and swinging while grasping the first grip part la on the other side, and training, stretching Strengthen the action. The invention's effect

[0007] According to the present invention, when gripping with both hands, by selecting and gripping a shift between the pair of first grip portions la and the second grip portion lb having a narrower interval than this, The width interval of both hands can be changed, various training using both hands, strengthening of each body part during stretching, relaxation action, etc. are effective, and gripping properties when holding with both hands or one hand are also improved To do. In addition, we devise various ways of use, such as pushing 'pulling', selecting the part to be applied to the body, the direction of application, the posture during use, etc.Training each body part other than the hands 'arms, legs-legs' It can be used for various purposes such as muscle stretch training, muscle strength training, body massage, physical fitness check, beauty diet training, rehabilitation training for hospitals, etc.

That is, this is a power of the present invention. A pair of first grip portions la that are substantially parallel and opposed to each other, and both ends of each of the first grip portions la are connected to each other, and the first grip portions la are spaced from each other. A pair of second groups opposed to each other in a narrow and almost parallel manner, and further constricted. The first grip portion la and the second grip portion lb are integrally formed in a loop shape. This makes it possible to select strength-enhancing parts by changing the width interval of both hands by selecting the gripping part when grasping with both hands, how to hold with both hands or one hand, pushing 'pull' twist when holding, Selection of contact area, direction of application, whole body or partial twist, face down 'sitting up', 'positioning' when using middle waist, standing position, whole body or partial selection, neck / shoulder / waist Various trainings are made possible by devising various forms of use such as pushing or pulling against body parts such as the stomach, limbs, wrists, and ankles.

[0009] Further, the first grip portion la is formed in a straight line or a gently curved shape, the second grip portion lb is curved in an arc shape when viewed from the front, and a rectangular frame as viewed from the plane so that the central portions are close to each other. Since the first grip portion la and the second grip portion lb each have a force that is gripped with both hands, the grip performance can be improved. In addition, the bow-shaped curved shape of the second grip part lb is selected by pressing each part of the body according to the mountain part, for example, stretching the neck and waist, rehabilitation training while riding in a wheelchair, using a chair, supine or standing In this state, it is possible to perform multi-faceted training such as massaging the back, etc., and conversely, the second grip lb is used as a trough to apply force to each part of the body ^, and the first grip la Can be used to grip and lift.

[0010] The first grip portion la has a rounded, substantially rectangular shape, and a wrist or ankle can be inserted therein. For example, the wrist / ankle is inserted to twist them, By stretching the ankle while lying down on the floor or in a supine posture, lifting can be applied to the legs, waist, etc.

[0011] In addition, since at least one of the first and second grips la and lb is covered with the soft grip cover 8, it becomes flexible with respect to the fingers when gripping these. 1. When the material of the second grip la, lb, etc. is made of, for example, an aluminum material or other metal, the feeling is good and the feeling of use is excellent.

[0012] Further, since one of the paired first grip portions la is provided with the weight body 5, the instrument body 1 can be attached by holding the first grip portion la on the other side without the weight body 5 with one hand. By twisting or shaking As the centrifugal force increases, gripping the training device with this unbalanced structure in a single-ply state can create a delicate sense of balance for the body and can stimulate the brain, muscles, etc. The strength of the inner muscles, such as the shoulders and shoulder blades, can be reduced.

[0013] On the other hand, the structure of a human skeleton that walks on two legs is structurally burdensome on the torso centered on the pelvis, spine, and scapula, so stress, muscle weakness, body distortion, etc. Disorders such as low back pain, stiff shoulders, and back pain are likely to occur. For this reason, the use of the second grip part lb, which has a generally arcuate curved shape of a training device based on the structure of the present invention, applied to the pelvis, spine and shoulder blades can improve these obstacles. Can do. For example, if the second grip part lb is applied to the pelvis, spine, etc. and moved, the range of motion can be expanded, and if used to apply to the spinal column, the back of the back, the spine can be adjusted by itself. If it is used to apply to the pelvis, stiff shoulders and back pain can be improved. In addition, it has outstanding effects in trunk training of the abdominal and back muscles.

[0014] In addition, core relaxation to improve fatigue and tension of core muscles, core strength to strengthen core muscles, and physical strength of ordinary people from rehabilitation of elderly people in nursing centers and patients in hospitals, etc. Various functions such as self-massage such as limbs and lower back, as well as athletes specializing in sports, can be easily stretched and stretched.

[0015] Furthermore, it is possible to check the strength of each part of the body, such as muscle strength, flexibility, and balance. For example, the abdominal muscle strength, back muscle strength, balance sensation, range of motion of the scapula, adductor endurance, hamstrings diaphragm flexibility, hip joint flexibility by pulling the knee, etc. You can test your physical strength and muscle balance. You can also check your physical strength while having fun as if you were playing a game.

[0016] Further, the training device of the present invention can be a new item of a sports club following a balance ball and a stretch pole. For example, in a sports club, it can be used as a female diet goods. In addition, abdominal massage on the diaphragm below the ribs promotes deep breathing and peristaltic movement of the small and large intestines, eliminating constipation Is also effective. However, in a sports club, this training equipment is always placed next to the stretch board when training, so it can be used as a stretch partner easily.

[0017] On the other hand, as a studio program, it can also be used as an assisting device for core training, stretch classes, chairs, pilates, muscle conditions, abdominal tightening, dieting and fitting. In particular, it is sufficiently effective in improving the performance of the street, and it is possible to produce a so-called waist sharpness in, for example, golf, baseball and tennis.

[0018] In addition, it can be expected to enhance the speedy movement of the scapula, such as fine used by soccer, rugby, boxers and the like. In particular, baseball pitchers, such as the inner muscle of the shoulder, are very tired, so holding the training equipment with one hand, placing the shoulder in the zero position, bending the elbow slightly, and shuffling can cause other types of shoulder fatigue. Prevention and strengthening are possible.

[0019] With easy stretching in the office, the fatigue from using a personal computer for a long time can be reduced. In addition, students can improve their learning ability by eliminating stiff necks of students at the cram school, relieve back pain when sitting on chairs for a long time in airplanes, vehicles, movie theaters, etc., and prevent driver drowsiness. It can also be used as goods.

[0020] Furthermore, by making these materials consisting of the first grip part la, the second grip part lb, etc. water-resistant, it can be used for training, stretching, etc. by underwater exercise in a bathtub, sauna room, pool, etc. It can be used as an underwater exercise in rehabilitation, allowing various exercises using water resistance or buoyancy.

[0021] Note that the symbols added in the means for solving the above-described problems and the effects of the invention are added for easy reference to the parts showing the components shown in the drawings. Therefore, the present invention is not limited to the shape of the structure indicated by the reference numerals in the drawings.

Brief Description of Drawings

FIG. 1 is an overall perspective view showing the best mode for carrying out the present invention.

[FIG. 2] FIG. 2 shows an example of a training apparatus, where (a) is a plan view and (b) is a front view. FIG. 4C is a side view.

FIG. 3 shows another example of the present embodiment, and is a perspective view when formed of a metal pipe material.

FIG. 4 shows another example of the present embodiment, and is a perspective view when formed with a metal pipe material and covered with a cover member.

FIG. 5 shows another example of the present embodiment, and is a perspective view when it is covered with a grip cover.

[Fig. 6] Fig. 6 shows an example of how to use the training equipment. (A) is a front view of the first grip part held with both hands, and (b) is a second grip part with both hands. (C) is a side view of a state where one first grip portion is gripped with one hand, (d) is a front view of a state where the second grip portion is gripped with one hand, e) is a front view when both wrists are inserted into the instrument body.

[Fig. 7] Fig. 7 shows an example of the usage method. (A) is a side view of the body when holding the first grip part with both hands and bending the arm forward and backward, (b) Is a front view of the body horizontally moving to the side, (c) is a front view of the body when twisted, (d) is a side view of the body when lifted upward, and (e) is the back of the head 3 is a front view of the body when the upper body is bent and stretched.

[FIG. 8] FIG. 8 also shows another method of use, and (a) and (b) are side views in the case of stretching the waist and the back, respectively.

[FIG. 9] FIG. 9 shows another use method, and is a side view when the body is warped on the floor and stretched.

[FIG. 10] FIG. 10 shows another method of use, and is a front view when sitting on a chair and grasping with both hands and twisting the body back and forth.

Explanation of symbols

1 Instrument body

la 1st grip

lb 2nd grip

2 Pipe material 3 Cover material

4 Tape material

5 body

6 Connecting member

6a Large diameter part

6b Small diameter part

7 Screw body

8 Grip cover

BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, the best mode for carrying out the present invention will be described with reference to the drawings. Reference numeral 1 shown in the figure is a desired value so that it can be used, for example, for men and women and children. It is an instrument body made of, for example, wood, aluminum or other metal, which constitutes a training instrument according to the present invention having a size. As shown in FIGS. 1 and 2, the instrument body 1 includes a pair of first grip portions la that are formed in a straight line or a gentle curve and face each other in a substantially parallel manner, and the first grip portion la. A frame that connects both ends and has a second grip part lb that is narrower than the distance between the first grip parts la and is opposed to each other in a substantially parallel manner, and forms a whole loop. It is formed in a shape.

[0025] In addition, the whole viewed from the plane has an outer shape! It has a horizontally elongated rectangular shape that is rounded so that it is close to the shape of the human pelvis viewed from above. The interval is wider than the interval between the second dalb parts lb, for example, about 2 to 4 times that. The second grip portion lb itself is slightly narrowed toward the inward direction, and is curved in an arc shape in a direction substantially perpendicular to the direction of the narrowing, so that the second wing portion lb is substantially winged. It is shaped like an arch. The arch is curved with a quarter of the circumference of the circle. The overall shape is almost a wing-shaped arch, and the loop is integrated with the first grip part la. It is formed as a frame.

[0026] That is, when the plane force is viewed as a whole, the first grip portion la is located on the left and right in the plane, and the second grip portion lb is also located on the front and back (up and down) (see FIG. 2 (a)). When viewed from the front, the first grip la is in the left and right position, and the second grip lb is The grip part is located above the position of la and has a mountain shape (see Fig. 2 (b)). When the entire side force is further observed, the first grip part la is located at the front and back (left and right). The second grip part lb is located on the left and right (front and rear) in the upper position compared to the la position of the first grip part (see Fig. 2 (c)). The directions such as the front, the plane, and the side are for convenience for explaining the shape of the training apparatus according to the present invention, and are not limited thereto.

[0027] Further, the second grip portion lb is formed in a slightly narrowed shape when viewed from the plane so as to be close to each other, and the expansion angle thereof is about 150 degrees, for example. It may be almost parallel without being constricted. However, each of the first grip portion la and the second grip portion lb has an outer diameter that can be directly gripped by the user's fingers, and has a rectangular frame shape that is almost round and flat. The first grip part la is formed in a size that allows the wrist and ankle to be inserted inside the rectangular frame, and each of the first grip part la and the second grip part lb is held with both hands. When grasped, the left and right fingers do not come into direct contact with each other, and have an internal space size.

[0028] The specific size of each part of the instrument body 1 is such that the diameter of the first grip part la is about 25 mm and the diameter of the second grip part lb is about 20 mm so that it can be easily gripped with fingers. The outer diameter is set to be thick, the outer width at the end of the first grip section la is about 130 mm, the outer width at the center of the second grip section lb is about 100 mm, and the first grip section la The height from the end to the center of the second grip part lb is about 100mm. Also, the distance between the second grip parts lb may be applied to both sides of the human spinal column, so the inner width is set to about 60 mm, for example, so as to correspond to that distance. . Furthermore, the first grip portion la has a curvature of, for example, an inner width of about 85 mm so that the arm, wrist, ankle, etc. can be easily passed or applied, and the second grip portion lb The degree of bending is set so that, for example, the bending angle when the instrument body 1 is viewed from the side is approximately 120 degrees. Note that these specific sizes are merely examples, and the present invention is of course not limited thereto.

[0029] The shape of the instrument body 1 can be formed, for example, by making the block force of the wood into a dead shape, or by bending the rod-like wood in, for example, a high-temperature heating furnace. Processed into a loop with 1 grip part la and 2nd grip part lb. Ah Alternatively, the first grip portion la and the second grip portion lb having the above-described shapes may be integrally formed by cutting a block-shaped wood using a machine cutting machine. In addition, when using wood, if necessary, it can be impregnated with a reinforcing agent.

[0030] As another example of manufacturing the shape of the instrument body 1, as shown in FIG. 3, for example, a substantially central portion of an aluminum pipe member 2 or the like is curved and formed into a second grip portion lb shape. In addition, the both sides of the instrument body 1 are integrally formed so as to be bent to be approximately half the length of the first grip portion la, and a symmetric half portion of the instrument body 1 is prepared in advance. Then, a substantially cylindrical connecting member 6 having strength resistance is formed by integrally forming the small diameter portion 6b on both sides via the central large diameter portion 6a, and the small diameter portion 6b is formed on the first grip portion la. By inserting and fixing the screw body 7 from the side surface by inserting it into the opening end portion, the half-grip first grip portions la are connected to each other, and the whole is formed in a loop shape.

[0031] As another example of the present embodiment, as shown in FIG. 4, a slightly thicker weight body 5 may be provided on one side of the opposing first grip portions la. . In making the shape of the instrument body 1 in this case, first, a part of a hard knive material 2 made of a metal in a circular ring shape or the like is cut, and this cut portion is compared through a solid metal weight body 5, for example. After welding and connecting, the centers of the opposing arc parts excluding the arc part of the five parts of the weight body and the opposing arc part are constricted inward by, for example, a compression deformer. Further, the first grip portion la and the second grip portion lb are formed by bending in an arcuate shape or a mountain shape in a direction substantially perpendicular to the narrowing direction.

[0032] Then, if necessary, the periphery is covered with a soft cover member 3 such as urethane resin, silicon rubber or the like, and further, for example, a cork having a pattern with various colors on its surface. The tape material 4 is spirally equipped. At this time, the instrument main body 1 itself is formed in various sizes depending on the size for adults, children, women and the like. It is also possible to directly wear only the cork-like tape material 4 without covering the pipe material 2 with the soft member 3.

[0033] It should be noted that in making the shape of the instrument body 1, the pair of first grip portions la made of the pipe material 2 and the pair of second grip portions lb made of the Neuve material 2 are formed in advance so as to have the shape described above. These may be connected later by welding or the like. Also limited to metal pipe material 2 For example, you may form with a hard synthetic resin material etc. In this case, the first grip portion la and the second grip portion lb are integrally formed by injection molding or the like of a hard synthetic resin material. Also, the pipe material 2 can be a synthetic resin material such as polypropylene resin or polyurethane resin, a metal material such as stainless steel or titanium material, or a shape memory alloy material, and the cover material can be polypropylene. It is also possible to use synthetic resin materials such as resin and polyurethane resin, natural artificial leather materials, rubber materials and cloth materials.

[0034] As shown in Fig. 5, the first and second grip portions can be covered by the grip cover 8 which can be covered with a soft grip cover 8 called sponge rubber on the first grip portion la. It can be adapted to the fingers that hold la and lb. Of course, the grip cover 8 can be mounted on the second grip portion lb. In some cases, the grip cover 8 can be mounted over the entire area of the first grip portion la, the second grip portion lb, and the like.

Next, a method of using the best mode configured as described above will be described. It should be noted that the mode of use is such that the instrument main body 1 is gripped, for example, inserted into the interior, the first gripper is gripped, the second grip portion lb, etc. Gripping with the reverse hand, and the posture of the user during gripping, for example, sitting on a chair, leaning on the floor, standing up on the back, standing in the open leg standing position, standing in the closed leg, and pushing or pulling on various parts of the body Depending on the body shape, for example, there are more than 300 types depending on the torsion, direction, etc., but only the basic representative ones will be described.

[0036] When holding the instrument body 1 with both hands! As shown in FIG. 6 (a), if the part held with both hands is the first grip portion la, the width interval when gripping with both hands becomes large, On the other hand, as shown in Fig. 6 (b), when the part held by both hands is the second grip part lb, the width interval when gripped by both hands is reduced. In this way, by changing the part held with both hands to either the first grip part la or the second grip part lb, the width interval when gripping with both hands can be changed, and training when performing physical movements accordingly Application to various parts of the body such as stretching can be selected.

[0037] When the instrument body 1 is held with one hand, as shown in Fig. 6 (c), one first grip portion la is held with one hand, or as shown in Fig. 6 (d). , Use one second grip part lb with one hand. When gripping with one or both hands, the second group The angled convex side of the lip lb may be directed forward as viewed from the body or directed toward the rear body. It is also possible to insert a wrist into the first grip portion la (see FIG. 6 (e)).

[0038] Next, a description will be given of the case where the first grip portion la of the instrument body 1 is used with both hands. The same operation can be performed when the second grip portion lb of the instrument body 1 is gripped with both hands. Also, training 'stretching while sitting on a chair is possible. Furthermore, depending on the contact point of the body 1 with the body, it is possible to stimulate the body's points.

[0039] As shown in FIG. 7, the first grip portion la is gripped with both hands and both arms are extended forward or pulled forward (see FIG. 7 (a)). Move horizontally to the left and right sides while holding with both hands (see Fig. 7 (b)), or rotate to twist while holding the first grip part la with both hands (see Fig. 7 (b)). 7 (c)), extending both arms over the head and warping back and forth and left and right (see Fig. 7 (d)), or rotating back and forth to twist left and right (see Fig. 7 (e)) ) To perform training.

[0040] As shown in FIG. 8 (a), hold the first grip portion la of the instrument body 1 with both hands, and place the arched convex portion side of the second grip portion lb against the spine or waist. For example, squeeze along the spine while changing the speed, press forward, or press from 8 directions, diagonally up, down, left and right. At this time, as shown in Fig. 8 (b), it is effective to bend one of the legs backward while bending the knee. You may make it turn.

[0041] As shown in FIG. 9, the instrument body 1 is placed on the floor surface. At this time, the instrument body 1 is supported on the floor surface by the first grip portion la, and the bow of the second grip portion lb. Make sure that the ridge-shaped convex part is facing upward. Then, with your body lying on your back, stretch and so on, with your spine and hips in contact with the convex part of the second grip part lb so that your body warps. Furthermore, training is performed by raising and lowering the upper and lower body against the floor.

[0042] As shown in FIG. 10, the two instrument bodies 1 are each grasped with one hand, both hands are moved, and the body is bent back and forth, left and right while twisting, twisting, and further Training, scratching, etc. by twisting the entire body. At this time, by sitting in a chair as shown You can increase your torsion and measure its efficiency.

As described above, by using the device body 1 of the present invention, muscle stretch training, strength training, body massage, etc. can be easily performed at any part of the body. It can also be used easily for beauty diet training, hospital rehabilitation and training.

Claims

The scope of the claims

[1] A pair of first grips that are substantially parallel and opposed to each other, and both ends of each of the first grips are connected to each other so that they are narrower than the distance between the first grips. A pair of second grips facing each other is formed into an integral loop shape with a substantially horizontally long rectangular frame when viewed from the top, and the first grip part is formed in a straight or gently curved shape. The second grip portion is curved in an arcuate shape when viewed from the front, and is formed in a slightly narrowed shape toward the inside of the rectangular frame with a planar force so that the central portions are close to each other. Training equipment.

[2] The tray according to claim 1, wherein the first grip portion has a substantially rectangular shape in which a connecting portion with the second grip portion is rounded, and a wrist or an ankle can be inserted into the rectangular frame. Jung utensils.

[3] The training device according to claim 1 or 2, wherein at least one of the first and second grip portions is covered with a soft elastic grip cover.

[4] The training device according to any one of claims 1 to 3, wherein a weight is provided on one of the first grip portions.