JP2021023719A - Abdominal muscle training tool - Google Patents

Abstract

To provide an abdominal muscle training tool which allows even a person whose muscle force is reduced to easily perform training of an abdominal muscle.SOLUTION: An abdominal muscle training tool 1 comprises a main body 10, a pillow part 20, a foot holding part 15, a first handrail part 17, a second handrail part 18, and a screw shaped gradient adjusting part 50. The main body 10 extends in a longitudinal direction and has a flat mount plane 11. The pillow part 20 is attached to one mount plane 11 of the main body 10 in the longitudinal direction, the foot holding part 15 is attached to the other mount plane 11 of the main body 10 in the longitudinal direction. A part of the foot holding part 15 directed to a space between the foot holding part 15 and the pillow part 20 is flat. The first handrail part 17 is provided between a pillow part region 11A and a foot holding part region 11B and is fitted to one mount plane 11 of the main body 10 in a short direction. The first handrail part 17 comprises a pair of first pole bodies 17A and a first parallel body 17B installed between the pair of first pole bodies 17A, the second handrail part 18 also comprises a pair of second pole bodies 18A and a second parallel body 18B.SELECTED DRAWING: Figure 1A

Description

The present invention relates to an abdominal muscle trainer. More specifically, the present invention relates to an abdominal muscle trainer capable of training abdominal muscles even for elderly people with weakened muscles.

When the abdominal muscles are weakened, the posture collapses, which puts an excessive load on the lower back muscles and causes back pain.
Therefore, in order to train the abdominal muscles, abdominal muscle exercises such as raising the upper body from lying on the back or tilting the upper body again and sleeping on the back are widely performed, and there are also devices for assisting such abdominal muscle exercises. Many have been proposed.

For example, Patent Document 1 describes the abdominal muscle exercise assisting device shown in FIG.
That is, the abdominal muscle exercise assisting tool 300 described in Patent Document 1 has a back body 310 made of an elongated rectangular cushioned plate body. A bent portion 311 is provided at a substantially central portion along the longitudinal direction of the back body 310.

Further, the bent portion 311 is configured to be fixed at a plurality of rotation angles, and can take the form of a sitting chair.
Further, a bent portion 312 that can be bent and fixed at a multi-step angle is also provided on the tip end side of the portion that forms the seat surface when taking the form of a sitting chair. The tip portion bent by the bent portion 312 with respect to the seat surface constitutes a footrest.

Further, in the form of a sitting chair, the outer surface of the footrest is further covered with a bag-shaped cover 313, and when the cover 313 is removed, the cover 313 is located on the tip end side of the footrest in an inverted state.

A balloon body 320 is provided at the center of the upper surface of the footrest. In the balloon body 320, a tube body (not shown) communicates with the inside, and the tip of the tube body is exposed on the side surface of the footrest. A check valve 321 for stopping the flow of air in the discharge direction is provided at the tip of the tube body, and an air pump can be connected to the check valve 321 to inflate the balloon body 320.
Further, the check valve 21 is capable of exhausting air when the nozzle of the air pump is inserted, whereby the balloon body 320 can be deflated and contracted.

Utility Model Registration No. 3175084

However, since the abdominal muscle exercise assisting tool described in Patent Document 1 needs to hold the balloon body between the legs during the abdominal muscle exercise, the leg muscle strength is required in addition to the muscle strength for raising and lowering the upper body. In particular, it was not an instrument that makes it easy for people with weak muscles, such as the elderly, to train their abdominal muscles.

Further, the state in which the back portion is raised is more likely to raise the upper body than the state in which the back portion is tilted, but the vertical direction of the buttocks of the user when using the abdominal muscle exercise assisting tool described in Patent Document 1. The position of is substantially the same as the vertical position of the user's ankle, that is, the buttocks and the ankle are located in substantially the same horizontal plane.

This state of the user is a sitting state, that is, when performing abdominal exercises above the structure where the vertical position of the buttocks would be above the vertical position of the user's ankles. You need muscle strength.

In addition, there are existing abdominal muscle trainers in which the vertical position of the user's buttocks is above the vertical position of the user's ankle when using, but the existing abdominal muscle trainer has the buttocks. Since the part that hits is always horizontal, the body cannot be maintained in a straight line from the upper body to the ankle.

Even if the vertical position of the user's buttocks is above the vertical position of the user's ankles, if the part where the buttocks hit is horizontal, the user is close to sitting. Therefore, the vertical position of the user's buttocks is above the vertical position of the user's ankle, and the body is maintained in a straight line from the upper body to the ankle, that is, standing. It is harder to raise or lower the upper body than in a state close to the state.

Under these circumstances, there has been a demand for an abdominal muscle trainer that makes it easier for people with weakened muscles to train their abdominal muscles.

The present invention has been devised in view of the above points, and an object of the present invention is to provide an abdominal muscle trainer that makes it easier for a person with weakened muscles to train their abdominal muscles.

In order to achieve the above object, the abdominal muscle trainer of the present invention extends in the longitudinal direction, has a flat mounting surface, and the position of one of the mounting surfaces in the longitudinal direction is set. A main body that can be used by being arranged vertically above the position of the other mounting surface on the opposite side of the longitudinal direction, and a pillow attached to one of the previously described mounting surfaces in the longitudinal direction of the main body. The portion and the pillow portion of the main body are attached to the other front-described mounting surface on the opposite side of the pillow portion area, which is the one front-described mounting surface to which the pillow portion is attached, and the user's foot is hooked. It is located between the foot restraint area where the foot restraint is possible, the pillow region and the foot restraint region which is the other previously described mounting surface of the main body to which the foot restraint is attached, and in the longitudinal direction of the main body. A handrail portion attached to one front-mounted surface in the lateral direction, which is substantially orthogonal to the other, and the other front-mounted surface in the opposite direction to the other, and the pillow portion of the main body. It is provided with a gradient adjusting unit that can change the position of the region in the vertical direction.

Here, the mounting surface extends in the longitudinal direction, has a flat mounting surface, and the position of one mounting surface in the longitudinal direction is that of the other mounting surface opposite to one in the longitudinal direction. The position of one mounting surface in the longitudinal direction in the vertical direction and the position of the other mounting surface on the opposite side of the longitudinal direction in the vertical direction, depending on the main body that can be used by being placed vertically above the position. The user is more likely to raise or lower the upper body on the mounting surface than the configuration in which the two are substantially the same as each other, that is, the mounting surface of the main body is substantially horizontal.

In addition, it is located between the pillow area and the foot holding area, which is the other mounting surface of the main body to which the foot holding part is attached, and is in the lateral direction which is substantially orthogonal to the longitudinal direction of the main body. The user put his head on the pillow and hooked his foot on the foot restraint by the handrail attached to one of the mounting surfaces and the other mounting surface on the opposite side in the lateral direction. Since the handrail is located at the position where the user's hand touches when in the state, the user can raise or lower the upper body while grasping the handrail, and the upper body can be raised or lowered. Easy to do.

Further, the magnitude of the load applied to the abdominal muscles can be adjusted by the gradient adjusting portion that can change the vertical position of the pillow portion region of the main body. For example, by changing the vertical position of the pillow region of the main body to a position away from the surface on which the abdominal muscle trainer of the present invention is placed, that is, a high position, the load applied to the abdominal muscles can be suppressed, while the main body. The load applied to the abdominal muscles can be increased by changing the position of the pillow portion region in the vertical direction to a position closer to the surface on which the abdominal muscle trainer of the present invention is arranged, that is, a lower position.

Further, in the abdominal muscle trainer of the present invention, the handrail portion extends in a direction substantially orthogonal to the mounting surface of the main body and extends in the same direction as the longitudinal direction of the main body and the strut body attached to the mounting surface. From a parallel body and a parallel body in which one end of the main body directed to the other in the longitudinal direction is connected to the strut and the other end of the main body directed to the other in the longitudinal direction is a free end. It can be configured to have a rod body that protrudes toward the mounting surface of the main body and has a free end at the tip.

In this case, the user puts his arm in the space between the tip, which is the free end of the rod, and the mounting surface of the main body from the other end, which is the free end of the parallel body, and a plurality of rods protrude. Occasionally, you can move your arms to quickly change sticks.

Further, in the abdominal muscle trainer of the present invention, a straight line extending in the lateral direction through the rod body of the handrail portion attached to one mounting surface in the lateral direction and mounting on the other mounting surface in the lateral direction. The straight lines extending in the lateral direction through the rod body of the handrail portion can be configured to be parallel to each other.

In this case, since the rod body of one handrail portion and the rod body of the other handrail portion are arranged at positions asymmetrical with each other, even a user who tends to put weight on one side has the rod body of the handrail portion. Easy to grasp.

Further, in the abdominal muscle trainer of the present invention, the handrail portion extends in a direction substantially orthogonal to the mounting surface of the main body and is attached to the mounting surface, and is a rod body having a rod shape. can do.

In this case, since the handrail portion is present at a position close to the mounting surface, the user can easily grasp the handrail portion, and the upper body can be easily raised or tilted.

Further, in the abdominal muscle trainer of the present invention, the portion of the foot restraint portion directed to the space between the foot restraint portion and the pillow portion can be configured to be flat.

In this case, even if the vertical position of the pillow area of the main body is high, that is, the inclination angle between the main body and the horizontal plane is large, the user puts his / her foot on the flat part of the foot restraint. Can do abdominal exercises.

Further, in order to achieve the above object, the abdominal muscle trainer of the present invention extends in the longitudinal direction, has a flat mounting surface, and has a position of one of the mounting surfaces in the longitudinal direction. Is attached to a main body that can be used by being arranged vertically above the position of the other mounting surface on the opposite side of the longitudinal direction, and to one of the previously described mounting surfaces in the longitudinal direction of the main body. The direction in which the pillow portion and the other front-described mounting surface on the opposite side of the pillow portion region, which is the one front-described mounting surface to which the pillow portion of the main body is attached, is substantially orthogonal to the mounting surface. A vertical member extending to one end and being connected to the other end on the opposite side of the vertical member, and extending substantially parallel to the mounting surface to which the vertical member is attached. It has a horizontal member that forms a space between it and the mounting surface, and is located between the vertical member portion and the pillow portion that are directed to the space between the pillow portion and the pillow portion. A foot restraint portion in which the portions of the lateral members directed toward the space are flat, and a foot restraint portion region which is the other previously described mounting surface of the pillow portion region and the main body to which the foot restraint portion is attached. A second mounting surface located in between and extending in a direction substantially orthogonal to the mounting surface and having one end attached to one mounting surface in the lateral direction, which is a direction substantially orthogonal to the longitudinal direction of the main body. One strut body and one end extending in the same direction as the longitudinal direction of the main body and facing the other in the longitudinal direction of the main body are the other ends opposite to one end of the first strut body. A first parallel body connected to the main body and having a free end on the other end opposite to one end directed to the other in the longitudinal direction of the main body, and a front of the main body from the first parallel body. A first handrail portion that protrudes toward the description mounting surface and has a first rod body that forms a space between the tip and the mounting surface, the pillow portion region, and the foot holding portion. A second strut body located between the regions and having one end attached to the other mounting surface on the opposite side of the lateral side, extending in a direction substantially orthogonal to the mounting surface. , One end extending in the same direction as the longitudinal direction of the main body and facing the other in the longitudinal direction of the main body is connected to the other end on the side opposite to one end of the second strut body. A second parallel body having a free end on the other end opposite to the other end in the longitudinal direction of the main body, and the second parallel body directed toward the previously described surface of the main body. The vertical position of the pillow portion region of the main body and the second handrail portion having a second rod body that protrudes from the tip and forms a space between the tip and the mounting surface is changed. It is provided with a possible gradient adjusting unit.

Here, the mounting surface extends in the longitudinal direction, has a flat mounting surface, and the position of one mounting surface in the longitudinal direction is that of the other mounting surface opposite to one in the longitudinal direction. The position of one mounting surface in the longitudinal direction in the vertical direction and the position of the other mounting surface on the opposite side of the longitudinal direction in the vertical direction, depending on the main body that can be used by being placed vertically above the position. The user is more likely to raise or lower the upper body on the mounting surface than the configuration in which the two are substantially the same as each other, that is, the mounting surface of the main body is substantially horizontal.

Further, a vertical member extending in a direction substantially orthogonal to the mounting surface and having one end attached thereof is connected to the other end on the side opposite to one end of the vertical member, and the vertical member is attached. A portion of a vertical member that extends substantially parallel to the mounting surface, has a horizontal member that forms a space between the mounting surface, and is directed to the space between the pillow portion. When the vertical position of the pillow part area of the main body is low, that is, the inclination angle between the main body and the horizontal plane is reduced by the foot restraint part in which the parts of the horizontal members directed to the space between the pillow part are flat. When small, the user can place the ankle in the space formed between the horizontal member and the mounting surface and hook the foot on the foot restraint to train the abdominal muscles, and the pillow area of the main body. When the vertical position of the body is high, that is, when the inclination angle between the main body and the horizontal plane is large, the user can train the abdominal muscle by placing the foot on the flat portion of the foot holding portion.

In addition, it is located between the pillow area and the foot restraint area, which is the other mounting surface of the main body to which the foot restraint is attached, and is in the lateral direction which is substantially orthogonal to the longitudinal direction of the main body. A first strut body extending in a direction substantially orthogonal to the mounting surface and having one end attached to one mounting surface, and a first strut body extending in the same direction as the longitudinal direction of the main body and extending in the longitudinal direction of the main body. One end of the body is connected to the other end of the first strut body opposite to one end, and the other end of the main body is connected to the other end of the main body in the longitudinal direction. A first parallel body that is a free end and a first rod body that protrudes from the first parallel body toward the mounting surface of the main body and forms a space between the tip and the mounting surface. The first handrail portion having the above, and the other mounting surface located between the pillow portion region and the foot restraining portion region and on the opposite side to the one in the lateral direction, are substantially orthogonal to the mounting surface. A second strut body extending in the direction of the second strut to which one end is attached, and one end extending in the same direction as the longitudinal direction of the main body and directed to the other in the longitudinal direction of the main body are the second strut bodies. A second parallel body connected to the other end on the opposite side to one end and having a free end on the other end opposite to the other end in the longitudinal direction of the main body, and a second parallel body. A second handrail portion that protrudes from the body toward the mounting surface of the main body and has a second rod body that forms a space between the tip and the mounting surface allows the user to perform the first. From the other end side, which is the free end of the parallel body, and the other end side, which is the free end of the second parallel body, the space between the tip of the first rod body and the mounting surface and the second rod body. Put your arm in the space between the tip and the mounting surface, and when there are multiple first and second rods, move your arm to quickly move the first and second rods. You can change hands.

Further, due to such a first handrail portion and a second handrail portion, the first parallel body and the second parallel body are respectively from the mounting surface of the main body to the first strut body and the second strut body, respectively. Since it exists at a position as far away as the length of, when the vertical position of the pillow area of the main body is high, that is, when the tilt angle between the main body and the horizontal plane is large, the user's tilt angle is smaller than when the tilt angle is small. Even if the body is in a forward leaning posture and easily falls from the main body, the user can easily grasp the first handrail portion and the second handrail portion to suppress the fall.

In addition, the magnitude of the load applied to the abdominal muscles can be adjusted by the gradient adjusting portion that can change the vertical position of the pillow portion region of the main body.

With the abdominal muscle training device according to the present invention, even a person with weakened muscles can easily train the abdominal muscles.

It is a schematic perspective view which shows the 1st example of the abdominal muscle trainer to which this invention is applied. It is a schematic perspective view which shows the 2nd example of the abdominal muscle trainer to which this invention was applied. A schematic side view (a) showing a state in which the vertical position of the pillow region of the main body of the abdominal muscle training device of the second example to which the present invention is applied is raised, and the abdominal muscle training of the second example to which the present invention is applied. FIG. 3B is a schematic side view (b) showing a state in which the position of the pillow portion region of the main body of the vessel in the vertical direction is lowered. A schematic side view (a) showing a state in which the vertical position of the pillow region of the main body of the abdominal muscle training device of the third example to which the present invention is applied is raised, and the abdominal muscle training of the third example to which the present invention is applied. FIG. 3B is a schematic side view (b) showing a state in which the position of the pillow portion region of the main body of the vessel in the vertical direction is lowered. It is a schematic diagram which shows an example of the state of training abdominal muscles using the abdominal muscle trainer of the third example to which the present invention shown in FIG. 3 is applied. It is a schematic diagram which shows an example of the state of training abdominal muscles using the abdominal muscle trainer of the fourth example to which the present invention is applied. It is a schematic diagram which shows the conventional abdominal muscle trainer.

Hereinafter, embodiments of the present invention will be described with reference to the drawings for the purpose of understanding the present invention.
FIG. 1A is a schematic perspective view showing a first example of an abdominal muscle trainer to which the present invention is applied.

The abdominal muscle trainer 1 of the first example of the present invention shown in FIG. 1A includes a main body 10.
Here, the main body 10 extends in the longitudinal direction and has a flat mounting surface 11.
Further, the main body 10 is a single flat plate body, and is not bent separately into a seat portion and a back portion unlike a sitting chair.

Further, the abdominal muscle trainer 1 of the present invention includes a pillow portion 20.
Here, the pillow portion 20 is attached to one mounting surface 11 in the longitudinal direction of the main body 10.
That is, one mounting surface 11 of the main body 10 in the longitudinal direction to which the pillow portion 20 is attached is the pillow portion region 11A.

Further, the abdominal muscle training device 1 of the present invention includes a foot holding portion 15.
Here, the foot restraint portion 15 is attached to the other mounting surface 11 of the main body 10 in the longitudinal direction on the side opposite to the pillow portion region 11A.
That is, the other mounting surface 11 of the main body 10 in the longitudinal direction opposite to the pillow portion region 11A is the foot holding portion region 11B.

Further, the foot restraint portion 15 has a configuration in which the foot of a user who uses the abdominal muscle training device 1 of the present invention can be hooked.
That is, the foot holding portion 15 has a configuration in which the ankle can be held and fixed as in the case of normal abdominal muscle exercise.

As shown in FIG. 1A, the foot restraint portion 15 has a pair of support columns 15A.
Here, the pair of strut bodies 15A extend in a direction substantially orthogonal to the foot restraint portion region 11B of the main body 10, and one end thereof is attached to the foot restraint portion region 11B, substantially relative to the longitudinal direction of the main body 10. They are arranged apart from each other in the lateral direction, which is an orthogonal direction.

Further, the foot holding portion 15 has a parallel body 15B.
Here, the parallel body 15B extends substantially parallel to the foot restraint region 11B, extends in the same direction as substantially orthogonal to the longitudinal direction of the main body 10, and both ends thereof. Is erected by being connected to the other end on the opposite side of each of the pair of support columns 15A.

Therefore, the foot restraint portion 15 is formed with a space surrounded by the pair of strut bodies 15A, the parallel body 15B, and the foot restraint portion region 11B.
The user of the abdominal muscle trainer 1 of the present invention places the ankle in this space, and the instep is opposite to the portion of the foot restraint portion 15 in which the instep is directed to the space between the foot restraint portion 15 and the pillow portion 20. The foot can be hooked on the foot holding portion 15 by hitting the side portion.

Further, the portion opposite to the portion of the foot restraint portion 15 directed to the space between the foot restraint portion 15 and the pillow portion 20, that is, the portion of the support body 15A and the portion of the parallel body 15B is a flat flat surface. is there.
That is, this flat surface is a surface that extends in a direction substantially orthogonal to the mounting surface 11.

Further, the abdominal muscle training device 1 of the present invention includes a first handrail portion 17.
Here, the first handrail portion 17 is located between the pillow portion region 11A and the foot restraint portion region 11B, and is mounted on one side in the lateral direction, which is a direction substantially orthogonal to the longitudinal direction of the main body 10. It is attached to the mounting surface 11.

That is, one mounting surface 11 of the main body 10 in the lateral direction to which the first handrail portion 17 is attached is the first handrail portion region 11C.

Further, the first handrail portion 17 has a pair of first support columns 17A as shown in FIG. 1A.
Here, the pair of first strut bodies 17A extends in a direction substantially orthogonal to the first handrail portion region 11C of the main body 10, and one end thereof is attached to the first handrail portion region 11C, and the main body 10 They are arranged apart from each other in the same direction as the longitudinal direction of.

Further, the first handrail portion 17 has a first parallel body 17B.
Here, the first parallel body 17B extends substantially parallel to the first handrail portion region 11C, extends in the same direction as the longitudinal direction of the main body 10, and has a pair of both ends thereof. The first strut body 17A is erected by being connected to the other end on the opposite side to one end.

Therefore, in the first handrail portion 17, a space surrounded by a pair of first strut bodies 17A, a first parallel body 17B, and a first handrail portion region 11C is formed.
The user of the abdominal muscle trainer 1 of the present invention can put one arm, that is, the left arm into this space and grasp the first strut body 17A and the first parallel body 17B.

Further, the abdominal muscle training device 1 of the present invention includes a second handrail portion 18.
Here, the second handrail portion 18 is located between the pillow portion region 11A and the foot restraint portion region 11B, and is not the one in the lateral direction which is a direction substantially orthogonal to the longitudinal direction of the main body 10. It is attached to the other mounting surface 11 on the opposite side.

That is, the other mounting surface 11 of the main body 10 to which the second handrail portion 18 is attached in the lateral direction is the second handrail portion region 11D.

Further, the second handrail portion 18 has a pair of second support columns 18A as shown in FIG. 1A.
Here, the pair of second support columns 18A extend in a direction substantially orthogonal to the second handrail portion region 11D of the main body 10, and one end thereof is attached to the second handrail portion region 11D, and the main body 10 They are arranged apart from each other in the same direction as the longitudinal direction of.

Further, the second handrail portion 18 has a second parallel body 18B.
Here, the second parallelepiped 18B extends substantially parallel to the second handrail portion region 11D, extends in the same direction as the longitudinal direction of the main body 10, and has a pair of both ends thereof. The second strut body 18A is erected by being connected to the other end on the side opposite to one end.

Therefore, in the second handrail portion 18, a space surrounded by a pair of second strut bodies 18A, a second parallel body 18B, and a second handrail portion region 11D is formed.
The user of the abdominal muscle trainer 1 of the present invention can insert the other arm, that is, the right arm, into this space and grasp the second strut body 18A and the second parallel body 18B.

Further, the abdominal muscle trainer 1 of the present invention includes a screw type gradient adjusting unit 50.
Here, the screw type gradient adjusting portion 50 has a leg body 51 that supports one of the main bodies 10 in the longitudinal direction.
Further, the leg body 51 extends in one direction, and a plurality of threads and screw grooves are alternately formed on the surface of the leg body 51 in the direction in which the leg body 51 extends.
The screw type gradient adjusting unit is an example of the gradient adjusting unit.

Further, although not shown, one end of the leg 51 is attached to a connecting body attached to a surface of the main body 10 opposite to the mounting surface 11 and at a position corresponding to the pillow region 11A. ing.

Further, the screw type gradient adjusting unit 50 has a base 53.
Here, the base 53 is formed with a leg body accommodating hole (not shown) capable of accommodating the leg body 51.
Further, although not shown, a screw thread and a screw groove that can be screwed with a screw thread and a screw groove formed on the surface of the leg body 51 are formed on the inner surface surface of the leg body accommodating hole.

Therefore, for example, by rotating the base 53 around the direction in which the leg 51 extends, the leg 51 slides in the leg accommodating hole, and the protruding length of the leg 51 from the base 53 in the vertical direction is changed. can do.
The leg 51 is configured so as not to separate from the base 53.

Further, as shown in FIG. 1A, the screw type gradient adjusting portion 50 is attached to the surface of the main body 10 opposite to the mounting surface 11 and at the position corresponding to the pillow portion region 11A. Nothing is attached to the surface of the main body 10 opposite to the mounting surface 11 and at the position corresponding to the foot restraint region 11B.

Therefore, when using the abdominal muscle trainer 1 of the present invention, when the main body 10 is placed on the floor or the like, the position of the pillow portion region 11A of the main body 10 is vertically upward from the position of the foot restraint portion region 11B of the main body 10. It will be in the placed state.
That is, when the abdominal muscle trainer 1 of the present invention is used, the main body 10 is always in an inclined state with respect to the floor which is a horizontal plane.

Further, the screw type gradient adjusting portion 50 is attached to a surface of the main body 10 opposite to the mounting surface 11 at a position corresponding to the pillow portion region 11A, and from the base 53 in the vertical direction. Since the protruding length of the leg 51 can be changed, the position of the pillow region 11A of the main body 10 in the vertical direction can be changed.

FIG. 1B is a schematic perspective view showing a second example of an abdominal muscle trainer to which the present invention is applied.
Further, FIG. 2A is a schematic side view showing a state in which the position of the pillow portion region of the main body of the abdominal muscle trainer of the second example to which the present invention is applied is raised in the vertical direction, and FIG. 2B is shown in FIG. Is a schematic side view showing a state in which the position in the vertical direction of the pillow region of the main body of the abdominal muscle trainer of the second example to which the present invention is applied is lowered.

The abdominal muscle trainer 1 of the second example of the present invention shown in FIG. 1B includes a main body 10.
Here, the main body 10 extends in the longitudinal direction and has a flat mounting surface 11.
Further, the main body 10 is a single flat plate body, and is not bent separately into a seat portion and a back portion unlike a sitting chair.

Further, the abdominal muscle trainer 1 of the present invention includes a pillow portion 20.
Here, the pillow portion 20 is attached to one mounting surface 11 in the longitudinal direction of the main body 10.
That is, one mounting surface 11 of the main body 10 in the longitudinal direction to which the pillow portion 20 is attached is the pillow portion region 11A.

Further, the abdominal muscle training device 1 of the present invention includes a foot holding portion 30.
Here, the foot restraint portion 30 is attached to the other mounting surface 11 of the main body 10 in the longitudinal direction on the side opposite to the pillow portion region 11A.
That is, the other mounting surface 11 of the main body 10 in the longitudinal direction opposite to the pillow portion region 11A is the foot holding portion region 11B.

Further, the foot restraint portion 30 has a configuration in which the foot of a user who uses the abdominal muscle training device 1 of the present invention can be hooked.
That is, the foot holding portion 30 has a configuration in which the ankle can be held and fixed as in the case of normal abdominal muscle exercise.

As shown in FIG. 1B, the foot restraint portion 30 has a vertical member 31 extending in a direction substantially orthogonal to the foot restraint portion region 11B of the main body 10 and having one end attached to the foot restraint portion region 11B, and a vertical member 31. It is connected to the other end on the opposite side to one end, extends substantially parallel to the foot restraint region 11B, and is in the same direction as the direction substantially orthogonal to the longitudinal direction of the main body 10. It has an extended horizontal member 32 and has a substantially T-shape.

Further, for example, as shown in FIG. 2, the portion of the foot restraint portion 30 directed to the space between the foot restraint portion 30 and the pillow portion 20, that is, the portion of the vertical member 31 and the portion of the horizontal member 32 are flat and flat. The surface is 32A.
That is, the flat surface 32A is a surface that extends in a direction substantially orthogonal to the mounting surface 11.

Further, for example, as shown in FIG. 2, the surface of the portion of the portion opposite to the portion of the foot restraint portion 30 directed toward the space between the foot restraint portion 30 and the pillow portion 20 is curved outward. The curved surface portion 32B.

Further, a space is formed between the portion of the horizontal member 32 facing the foot restraint portion region 11B and the foot restraint portion region 11B, and this space is a vertical member in the same direction as the direction in which the horizontal member 32 extends. It exists in two places with 31 in between.
As a result, the ankle can be placed in this space, the instep can be applied to the curved surface portion 32B, and the user's foot can be hooked on the foot holding portion 30.

Further, the abdominal muscle training device 1 of the present invention includes a first handrail portion 40.
Here, the first handrail portion 40 is located between the pillow portion region 11A and the foot restraint portion region 11B, and is mounted on one side in the lateral direction, which is a direction substantially orthogonal to the longitudinal direction of the main body 10. It is attached to the mounting surface 11.

That is, one mounting surface 11 of the main body 10 in the lateral direction to which the first handrail portion 40 is attached is the first handrail portion region 11C.

Further, the first handrail portion 40 has a first strut body 40A.
Here, the first support column 40A extends in a direction substantially orthogonal to the first handrail portion region 11C of the main body 10, and one end thereof is attached to the first handrail portion region 11C.

Further, the first handrail portion 40 has a first parallel body 40B.
Here, the first parallelepiped 40B extends in the same direction as the longitudinal direction of the main body 10, and one end of the main body 10 directed to the other in the longitudinal direction is the first of the first strut body 40A. It is connected to the other end on the side opposite to one end attached to the handrail region 11C.
Further, the other end of the first parallelepiped 40B, which is directed to one side in the longitudinal direction of the main body 10, is a free end.

Further, the first handrail portion 40 has a plurality of first rod bodies 40C.
Here, each of the first rod bodies 40C protrudes from the first parallel body 40B toward the first handrail portion region 11C of the main body 10, and the tip thereof is a free end.

That is, for example, as shown in FIG. 2, the tip of the first rod body 40C is not in contact with the first handrail portion region 11C, and the tip of the first rod body 40C and the first handrail portion region 11C A space is formed between them.

Further, the abdominal muscle training device 1 of the present invention includes a second handrail portion 41.
Here, the second handrail portion 41 is located between the pillow portion region 11A and the foot restraint portion region 11B, and is not the one in the lateral direction which is substantially orthogonal to the longitudinal direction of the main body 10. It is attached to the other mounting surface 11 on the opposite side.

That is, the other mounting surface 11 of the main body 10 to which the second handrail portion 41 is attached in the lateral direction is the second handrail portion region 11D.

Further, the second handrail portion 41 has a second support column body 41A.
Here, the second support column 41A extends in a direction substantially orthogonal to the second handrail portion region 11D of the main body 10, and one end thereof is attached to the second handrail portion region 11D.

Further, the second handrail portion 41 has a second parallel body 41B.
Here, the second parallelepiped 41B extends in the same direction as the longitudinal direction of the main body 10, and one end of the main body 10 directed to the other in the longitudinal direction is the second of the second strut body 41A. It is connected to the other end on the side opposite to one end attached to the handrail region 11D.
Further, the other end of the second parallelepiped 41B, which is directed to one side in the longitudinal direction of the main body 10, is a free end.

Further, the second handrail portion 41 has a plurality of second rod bodies 41C.
Here, each of the second rods 41C projects from the second parallelepiped 41B toward the second handrail region 11D of the main body 10, and the tip thereof is a free end.

That is, the tip of the second rod 41C is not in contact with the second handrail region 11D, and a space is formed between the tip of the second rod 41C and the second handrail region 11D. There is.

Further, as shown in FIG. 1, a first short-hand direction straight line 45, which is a virtual straight line extending in the short-hand direction through the first rod body 40C of the first hand-sliding part 40, and a second hand-sliding part. The second short line 46, which is a virtual straight line extending in the short direction through the second rod 41C of 41, is parallel to each other.
That is, the first rod body 40C of the first handrail portion 40 and the second rod body 41C of the second handrail portion 41 are arranged at positions asymmetrical with each other.

Further, the abdominal muscle trainer 1 of the present invention includes a screw type gradient adjusting unit 50.
Here, the screw type gradient adjusting portion 50 has a leg body 51 that supports one of the main bodies 10 in the longitudinal direction.
Further, the leg body 51 extends in one direction.

Further, on the surface of the leg body 51, a plurality of threads 51A and a plurality of screw grooves 51B are alternately formed in the direction in which the leg body 51 extends.

Further, the screw type gradient adjusting unit 50 has a connecting body 52 for connecting the leg body 51 to the main body 10.
Here, the connecting body 52 is attached to a surface of the main body 10 opposite to the mounting surface 11 and at a position corresponding to the pillow portion region 11A.

Further, one end of the leg 51 is attached to the surface of the connecting body 52 opposite to the surface attached to the main body 10.

Further, the surface of the connecting body 52 attached to the surface of the main body 10 opposite to the mounting surface 11 extends in an oblique direction with respect to the horizontal plane.
Further, the surface of the connecting body 52 to which one end of the leg body 51 is attached extends in a substantially horizontal direction.

Further, the screw type gradient adjusting portion 50 has a base 53 in which a leg body accommodating hole 53A capable of accommodating the leg body 51 is formed.
Although not shown here, on the inner surface of the leg body accommodating hole 53A, a screw thread and a screw groove that can be screwed with the screw thread 51A and the screw groove 51B formed on the surface of the leg body 51 are formed. ing.

Therefore, for example, by rotating the base 53 around the direction in which the leg 51 extends, the leg 51 slides in the leg accommodating hole 53A, and the protruding length of the leg 51 from the base 53 in the vertical direction. Can be changed.
The leg 51 is configured so as not to separate from the base 53.

Further, as shown in FIG. 2 and the like, the screw type gradient adjusting portion 50 is attached to the surface of the main body 10 opposite to the mounting surface 11 and at the position corresponding to the pillow portion region 11A. , Nothing is attached to the surface of the main body 10 opposite to the mounting surface 11 and at the position corresponding to the foot restraint region 11B.

Therefore, when using the abdominal muscle trainer 1 of the present invention, when the main body 10 is placed on the floor 3 or the like, the position of the pillow portion region 11A of the main body 10 is vertically above the position of the foot restraint portion region 11B of the main body 10. It will be in the state of being placed in.
That is, when the abdominal muscle trainer 1 of the present invention is used, the main body 10 is always in an inclined state with respect to the floor 3 which is a horizontal plane.

Further, the screw type gradient adjusting portion 50 is attached to a surface of the main body 10 opposite to the mounting surface 11 at a position corresponding to the pillow portion region 11A, and from the base 53 in the vertical direction. Since the protruding length of the leg 51 can be changed, the position of the pillow region 11A of the main body 10 in the vertical direction can be changed.

That is, by increasing the protruding length of the leg 51 from the base 53, the main body 10 is tilted with respect to the floor 3 at an inclination angle A as shown in FIG. 2A, and the legs are tilted from the base 53. By not projecting the body 51, as shown in FIG. 2B, the main body 10 tilts with respect to the floor 3 so as to form an inclination angle B smaller than the inclination angle A.

FIG. 3 (a) is a schematic side view showing a state in which the position of the pillow portion region of the main body of the abdominal muscle trainer of the third example to which the present invention is applied is raised in the vertical direction, and FIG. 3 (b) is a schematic side view. It is a schematic side view which shows the state which lowered the position in the vertical direction of the pillow part region of the body of the abdominal muscle trainer of 3rd example to which this invention was applied.

The abdominal muscle trainer 1 of the third example of the present invention shown in FIG. 3 is a telescopic slope instead of the screw type slope adjusting unit 50 provided in the abdominal muscle trainers 1 of the first example and the second example of the present invention. The adjusting unit 60 is provided.
Here, the telescopic gradient adjusting unit 60 can expand and contract in one direction, that is, in the vertical direction, and has an elastic body 61 having a bellows structure.
The telescopic gradient adjusting unit is an example of the gradient adjusting unit.

Further, the telescopic gradient adjusting unit 60 has a connecting body 62 for connecting the telescopic body 61 to the main body 10.
Here, the connecting body 62 is attached to a surface of the main body 10 opposite to the mounting surface 11 and at a position corresponding to the pillow portion region 11A.

Further, one end of the telescopic body 61 is attached to the surface of the connecting body 62 opposite to the surface attached to the main body 10.
Further, the other end of the telescopic body 61 opposite to one end is arranged on the floor 3.

Further, if the telescopic body 61 can be expanded and contracted in one direction, the telescopic body 61 can use various mechanisms such as a pneumatic type, a liquid type, and an electric type.

Further, the surface of the connecting body 62 attached to the surface of the main body 10 opposite to the mounting surface 11 extends in an oblique direction with respect to the horizontal plane.
Further, the surface of the connecting body 62 to which one end of the telescopic body 61 is attached extends in a substantially horizontal direction.

Further, as shown in FIG. 3, the telescopic gradient adjusting portion 60 is attached to the surface of the main body 10 opposite to the mounting surface 11 and at the position corresponding to the pillow portion region 11A. Nothing is attached to the surface of the main body 10 opposite to the mounting surface 11 and at the position corresponding to the foot restraint region 11B.

Therefore, when the abdominal muscle trainer 1 of the third example of the present invention shown in FIG. 3 is used, the main body 10 is always in an inclined state with respect to the floor 3 which is a horizontal plane.

Further, the telescopic gradient adjusting portion 60 is attached to a surface of the main body 10 opposite to the mounting surface 11 at a position corresponding to the pillow portion region 11A, and the telescopic body 61 is in the vertical direction. Since it can be expanded and contracted, the position of the pillow region 11A of the main body 10 in the vertical direction can be changed.

That is, by stretching the stretchable body 61, the main body 10 tilts with respect to the floor 3 at an inclination angle C as shown in FIG. 3 (a), and by contracting the stretchable body 61, FIG. 3 (b) As shown in the above, the main body 10 tilts with respect to the floor 3 so as to form an inclination angle D smaller than the inclination angle C.

Further, the abdominal muscle trainer 1 of the third example of the present invention shown in FIG. 3 is the same as the abdominal muscle trainer 1 of the second example of the present invention shown in FIG. 1B, with the pillow portion 20 and the foot restraint portion 30. It includes a first handrail portion 40 and a second handrail portion (not shown).

In this way, both the screw type gradient adjusting portion 50 and the telescopic gradient adjusting portion 60 maintain the state of extending in the longitudinal direction of the main body 10 without bending the main body 10, and are in the vertical direction of the pillow portion region 11A of the main body 10. The position can be changed.

The handrail portion provided in the abdominal muscle trainer of the present invention is not necessarily a first strut or a second strut or strut, a first parallel or a second parallel or a parallel, and a first rod. Alternatively, it does not have to have a second rod body, that is, a rod body.

However, if the handrail portion has a strut body, a parallel body, and a rod body, the user can start from the other end side, which is the free end of the parallel body, to the tip and the main body, which are the free ends of the rod body. It is preferable to put an arm in the space between the mounting surface and when a plurality of rods are protruding, the arm can be moved to quickly change the rod.

Further, the first straight line in the short direction and the second straight line in the short direction do not necessarily have to be parallel to each other. That is, the first rod body of the first handrail portion and the second rod body of the second handrail portion do not necessarily have to be arranged at positions asymmetrical with each other.

However, if the first straight line in the short direction and the straight line in the second short direction are parallel to each other, that is, if the first rod body and the second rod body are arranged at positions asymmetrical with each other. Even a user who tends to put weight on one side can easily grasp the rod body of the handrail, which is preferable.

Further, the portion of the foot restraint portion directed to the space between the foot restraint portion and the pillow portion does not necessarily have to be flat.
However, if the portion of the foot restraint facing the space between the foot restraint and the pillow is flat, even if the position of the pillow region of the main body in the vertical direction becomes higher, that is, between the main body and the horizontal plane. Even if the inclination angle between them becomes large, the user can put his / her foot on the flat portion of the foot holding portion and perform abdominal muscle exercise, which is preferable.

Further, the foot holding portion does not necessarily have to have a substantially T-shaped structure having a vertical member and a horizontal member, and may have various shapes.

FIG. 4 is a schematic view showing an example of training the abdominal muscles using the abdominal muscle trainer of the third example to which the present invention shown in FIG. 3 is applied.
Further, FIG. 5 is a schematic view showing an example of training the abdominal muscles using the abdominal muscle trainer of the fourth example to which the present invention is applied.

As shown in FIG. 4, the user 2 of the abdominal muscle trainer 1 of the present invention takes a posture in which the back and buttocks are placed on the mounting surface 11 of the main body 10.
At this time, since the telescopic body 61 extends in the vertical direction, the inclination angle of the main body 10 with respect to the floor 3 is large as in the state shown in FIG. 3A.

In this case, as shown in FIG. 4, the user 2 is in a posture in which his / her foot is placed on the flat surface 32A of the foot holding portion 30 and is standing on the foot holding portion 30.
This is because the inclination angle of the main body 10 with respect to the floor 3 is large, and if the user 2 does not take such a posture, the foot of the user 2 slips off and protrudes from the main body 10 and hits the floor 3.

Then, the user 2 grasps the first rod body 40C of the first handrail portion 40 and the second rod body of the second handrail portion (not shown) by hand, and raises or tilts the upper body. And train your abdominal muscles.

Further, the abdominal muscle trainer 1 of the fourth example of the present invention shown in FIG. 5 is a handrail portion composed of a strut body, a parallel body, and a rod body, which is provided in the abdominal muscle trainer 1 of the third example of the present invention. A rod-shaped handrail portion 42 is provided instead of the above.

Here, the rod-shaped handrail portion 42 is located between the pillow portion region and the foot holding portion region, and is a short direction substantially orthogonal to the longitudinal direction of the main body 10, similarly to the first handrail portion 40. It is attached to one of the mounting surfaces 11 in the manual direction.
Further, the rod-shaped handrail portion 42 extends in a direction substantially orthogonal to the mounting surface 11 of the main body 10 and is attached to the mounting surface 11 and has a rod shape.

Further, although not shown in FIG. 5, another rod-shaped handrail portion is attached to the other mounting surface 11 on the side opposite to one in the lateral direction.

Further, the abdominal muscle trainer 1 of the fourth example of the present invention shown in FIG. 5 is the same as the abdominal muscle trainer 1 of the third example of the present invention shown in FIG. 3, with the pillow portion 20 and the foot restraint portion 30. A telescopic gradient adjusting unit 60 is provided.

Further, as shown in FIG. 5, the user 2 of the abdominal muscle trainer 1 of the present invention takes a posture in which the back and buttocks are placed on the mounting surface 11 of the main body 10.
At this time, unlike the abdominal muscle trainer 1 of the present invention shown in FIG. 4, since the telescopic body 61 is contracted, the inclination angle of the main body 10 with respect to the floor 3 is small as in the state shown in FIG. 3 (b). Is.

In this case, as shown in FIG. 5, the ankle is placed in the space formed between the lateral member 32 and the main body 10, the instep is applied to the curved surface portion 32B, and the foot of the user 2 is hooked on the foot holding portion 30. ..
Since the inclination angle of the main body 10 of the abdominal muscle trainer 1 of the present invention shown in FIG. 4 with respect to the floor 3 is smaller than the inclination angle of the main body 10 of the abdominal muscle trainer 1 of the present invention shown in FIG. This is because the foot of the person 2 slides down and protrudes from the main body 10 and does not hit the floor 3.

Then, the user 2 grasps the rod-shaped handrail portion 42 and another rod-shaped handrail portion (not shown) by hand, and raises or tilts the upper body to train the abdominal muscles.

Further, the handrail portion does not necessarily have to extend in a direction substantially orthogonal to the mounting surface of the main body and is not attached to the mounting surface, and may not have a rod shape.

However, if the handrail portion extends in a direction substantially orthogonal to the mounting surface of the main body and is attached to the mounting surface and has a rod shape, the handrail portion is located near the mounting surface. Is preferable because it makes it easier for the user to grasp the handrail portion and makes it easier for the user to raise or tilt the upper body.

Further, the first handrail portion, the second handrail portion, and the rod-shaped handrail portion can be detachably attached to the mounting surface.
With such a configuration, for example, the first handrail portion is attached to one mounting surface in the lateral direction of the main body, and the rod-shaped handrail portion is attached to the other mounting surface in the lateral direction of the main body. It is possible to attach a type of handrail that is easy for the user to use.

As described above, when the abdominal muscle trainer of the present invention is used, when the main body is placed on the floor or the like, the position of the pillow portion region of the main body is arranged vertically above the position of the foot restraint portion region of the main body. Since the main body is placed on the floor or the like, the user can easily raise or lower the upper body on the mounting surface as compared with the configuration in which the mounting surface of the main body is substantially horizontal.

Further, since the abdominal muscle trainer of the present invention includes a first handrail portion, a second handrail portion, and a rod-shaped handrail portion, that is, a handrail portion, the user can hold the upper body while grasping the handrail portion. It can be raised and lowered, and it is easy to raise and lower the upper body.

Further, since the abdominal muscle trainer of the present invention includes a screw type gradient adjusting portion or a telescopic gradient adjusting portion, that is, a gradient adjusting portion, the magnitude of the load applied to the abdominal muscle can be adjusted.

In abdominal exercises, muscle strength is used not only when raising the upper body but also when tilting the upper body, so in order to make it easier for people with weak muscles such as the elderly to perform abdominal muscle exercise, it is easier to raise the upper body. It is necessary to consider not only doing this, but also making it easier to tilt the upper body.
Therefore, since the abdominal muscle trainer of the present invention is provided with the main body, the handrail portion, and the gradient adjusting portion as described above, even a person whose muscle strength is weakened by using the abdominal muscle trainer of the present invention can use the abdominal muscle. Easy to train.

1 Abdominal muscle trainer 2 User 3 Floor 10 Main body 11 Mounting surface 11A Pillow area 11B Foot restraint area 11C First handrail area 11D Second handrail area 15 Foot restraint 15A Strut 15B Parallel body 17th 1 handrail part 17A 1st strut body 17B 1st parallel body 18 2nd handrail part 18A 2nd strut body 18B 2nd parallel body 20 Pillow part 30 Foot restraint part 31 Vertical member 32 Horizontal member 32A Flat surface 32B Curved surface 40 1st handrail 40A 1st strut 40B 1st parallel 40C 1st rod 41 2nd handrail 41A 2nd strut 41B 2nd parallel 41C 2nd rod Body 42 Rod-shaped handrail 45 First short-side straight 46 Second short-side straight 50 Screw-type slope adjustment part 51 Leg body 51A Thread 51B Thread groove 52 Connection body 53 Base 53A Leg body accommodation hole 60 Telescopic slope Adjustment part 61 Telescopic body 62 Connection body

Claims (6)

It extends in the longitudinal direction, has a flat mounting surface, and the position of one mounting surface in the longitudinal direction is the position of the other mounting surface opposite to one in the longitudinal direction. The main body that can be used by being placed vertically above
A pillow portion attached to one of the previously described mounting surfaces in the longitudinal direction of the main body,
The pillow portion of the main body is attached to the other previously described mounting surface opposite to the pillow portion region, which is one previously described mounting surface, and the user's foot can be hooked. With a foot restraint
It is located between the pillow portion region and the foot restraint region, which is the other previously described mounting surface of the main body to which the foot restraint is attached, and is in a direction substantially orthogonal to the longitudinal direction of the main body. A handrail portion attached to one front-mounted surface in the lateral direction and the other front-mounted surface on the opposite side of the same short-side,
An abdominal muscle trainer including a gradient adjusting portion capable of changing the vertical position of the pillow portion region of the main body. The handrail portion extends in a direction substantially orthogonal to the previously described mounting surface of the main body and is attached to the mounting surface, and extends in the same direction as the longitudinal direction of the main body and is the same. A parallel body in which one end of the main body directed to the other in the longitudinal direction is connected to the strut and the other end of the main body directed to the other in the longitudinal direction is a free end, and the parallel body to the above. The abdominal muscle trainer according to claim 1, which has a rod body that protrudes toward the previously described mounting surface of the main body and has a free end at the tip. A straight line extending in the same minor direction through the rod body of the handrail portion attached to one of the previously described mounting surfaces in the lateral direction, and the said mounted on the other previously described mounting surface in the lateral direction. The abdominal muscle trainer according to claim 2, wherein the straight lines extending in the same short direction through the rod body of the handrail portion are parallel to each other. The abdominal muscle training according to claim 1, wherein the handrail portion extends in a direction substantially orthogonal to the previously described mounting surface of the main body and is attached to the mounting surface and has a rod shape. vessel. The abdominal muscle trainer according to claim 1, claim 2, claim 3 or claim 4, wherein the portion of the foot restraint portion directed to the space between the foot restraint portion and the pillow portion is flat. It extends in the longitudinal direction, has a flat mounting surface, and the position of one mounting surface in the longitudinal direction is the position of the other mounting surface opposite to one in the longitudinal direction. The main body that can be used by being placed vertically above
A pillow portion attached to one of the previously described mounting surfaces in the longitudinal direction of the main body,
One end of the main body extends in a direction substantially orthogonal to the mounting surface on the other front mounting surface opposite to the pillow region, which is one front mounting surface to which the pillow is mounted. The attached vertical member is connected to the other end on the side opposite to one end of the vertical member, and extends substantially parallel to the mounting surface on which the vertical member is attached, and is the same. It has a horizontal member that forms a space with the mounting surface, and is directed to the portion of the vertical member and the space between the pillow portion and the space between the pillow portion and the vertical member portion. A foot restraint portion in which each of the lateral members is flat, and
A short portion that is located between the pillow portion region and the foot restraint region, which is the other previously described mounting surface of the main body to which the foot restraint is attached, and is substantially orthogonal to the longitudinal direction of the main body. A first strut body extending in a direction substantially orthogonal to the mounting surface and having one end attached to one mounting surface in the manual direction, and a first strut body extending in the same direction as the longitudinal direction of the main body and , One end of the main body directed to the other in the longitudinal direction is connected to the other end of the first strut body opposite to one end, and one end of the main body directed to the other in the longitudinal direction. A first parallel body whose other end on the opposite side to the free end is a free end, and a first parallel body projecting from the first parallel body toward the previously described mounting surface of the main body and having a tip and a mounting surface mounted on the same surface. A first handrail portion having a first rod body forming a space between them,
It is located between the pillow area and the foot restraint area, and one end extends in a direction substantially orthogonal to the mounting surface on the other mounting surface opposite to one in the lateral direction. The attached second strut body and one end extending in the same direction as the longitudinal direction of the main body and directed to the other in the longitudinal direction of the main body are opposite to one end of the second strut body. From a second parallel body that is connected to the other end of the side and whose other end on the opposite side to the other end in the longitudinal direction of the main body is a free end, and the second parallel body. A second handrail portion that protrudes toward the previously described mounting surface of the main body and has a second rod body that forms a space between the tip and the mounting surface.
An abdominal muscle trainer including a gradient adjusting portion capable of changing the vertical position of the pillow portion region of the main body.

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