Apparatus and method for bone impact stimulation

Abstract

To provide a bone impact stimulator capable of stimulating the bone of a user when the user is exercising.SOLUTION: A bone impact stimulation apparatus comprising: an energy accumulation unit for accumulating energy generated by exercise of a user; and a bone stimulation unit for stimulating a bone of the user using the energy accumulated in the energy accumulation unit.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a bone impact stimulation device and a bone impact stimulation method. [Background technology]

[0002] When a bone fracture occurs, treatment must be applied to the fractured area, and many treatment methods for the fractured area have been proposed. For example, a known method of treating a fracture involves irradiating the cortical bone containing the fractured area with ultrasound. In ultrasound fracture treatment, the fractured area is stimulated by the weak energy of ultrasound. Other known treatment methods involve managing nutritional balance by taking medicine or managing the diet. Another known treatment method involves massaging the soles of the feet. Massaging the soles of the feet promotes blood circulation in the soles and improves calcium absorption. For example, a massage device that manually strikes the soles of the feet is known, as disclosed in Patent Document 1.

[0003] On the other hand, bone stimulation is a particularly effective treatment for fractures. When bones receive impact stimulation, cells are activated. Cell activation increases intracellular metabolism, promoting bone regeneration. Cell activation also increases the ability to remove harmful substances, leading to healthy bones. In other words, bones improve in quality when stimulated. Stimulating bones while exercising can provide more effective stimulation. For example, when walking or running, the bones in the soles of the feet are impacted and stimulated by the ground. Similarly, when sitting in a chair, the bones in the lower back are impacted and stimulated by the chair. On the other hand, lack of bone stimulation increases the risk of developing diseases such as osteoporosis. Because physical movement is restricted when a fracture occurs, opportunities for bone stimulation are reduced. Not only those with fractures, but also those who are bedridden or sedentary have fewer opportunities for bone stimulation. Furthermore, astronauts also have fewer opportunities for bone stimulation. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2001-340421 Summary of the Invention [Problem to be solved by the invention]

[0005] However, ultrasound treatment and treatment using the device of Patent Document 1 are not sufficient as treatment methods for stimulating bones. Ultrasound treatment does not impart shocking stimulation to bones. Furthermore, ultrasound treatment and treatment using the device of Patent Document 1 do not stimulate bones while exercising.

[0006] An object of the present invention is to provide a bone impact stimulation device that can stimulate the bones of a user while the user is exercising. [Means for solving the problem]

[0007] In order to solve the above problems, the bone impact stimulation device of the present invention comprises an energy storage unit that stores energy generated by the user's exercise, and a bone stimulation unit that uses the energy stored in the energy storage unit to stimulate the user's bones. [Effects of the Invention]

[0008] According to the present invention, it is possible to provide a bone impact stimulation device that can stimulate the bones of a user while the user is exercising. [Brief explanation of the drawings]

[0009] [Figure 1] 1 is a perspective view showing a bone impact stimulation device according to a first embodiment. [Figure 2] FIG. 2 is a side view showing the bone impact stimulation device. [Figure 3]FIG. 10 is a side view showing the bone impact stimulation device, illustrating a state in which the guided portion is guided downward and rearward by the first frame portion. [Figure 4] FIG. 10 is a side view showing the bone impact stimulation device, illustrating a state in which the first restricting portion presses down the bone stimulation portion. [Figure 5] FIG. 10 is a side view showing the bone impact stimulation device, illustrating a state in which the first restricting portion is engaged with the lower end of the bone stimulation portion rail (engaging portion). [Figure 6] FIG. 10 is a side view of the bone impact stimulation device, showing a state in which the first impact part is stimulating the bones in the sole of the user's foot. [Figure 7] FIG. 10 is a side view showing the bone impact stimulation device, illustrating a state in which the guided portion is guided in a front-upper direction by the second frame portion. [Figure 8] FIG. 2 is a state transition diagram of the bone impact stimulation device. [Figure 9] FIG. 10 is a side view showing a bone impact stimulation device according to a second embodiment. [Figure 10] FIG. 10 is a side view of the bone impact stimulation device, showing a state in which the first impact part is stimulating the bones in the sole of the user's foot. [Figure 11] FIG. 10 is a side view showing a bone impact stimulation device according to a third embodiment. [Figure 12] FIG. 10 is a side view showing the bone impact stimulation device, illustrating a state in which the first restricting portion is engaged with the bone stimulation portion rail (engaging portion). [Figure 13] FIG. 10 is a side view showing the bone impact stimulation device, illustrating a state in which the first restricting portion is engaged with the lower end of the bone stimulation portion rail (engaging portion). [Figure 14] FIG. 10 is a side view of the bone impact stimulation device, showing a state in which the first impact part is stimulating the bones in the sole of the user's foot. [Figure 15] FIG. 10 is a side view showing the bone impact stimulation device, illustrating a state in which the guided portion is guided upward by the second frame portion. [Figure 16] FIG. 2 is a state transition diagram of the bone impact stimulation device. [Figure 17] FIG. 10 is a front view showing a bone impact stimulation device according to a fourth embodiment. [Figure 18]FIG. 2 is a side view showing the bone impact stimulation device. [Figure 19] FIG. 10 is a side view showing the bone impact stimulation device, illustrating a state in which the second restricting portion presses down the bone stimulation portion. [Figure 20] FIG. 10 is a side view showing the bone impact stimulation device, illustrating a state in which the second restricting portion is engaged with the lower end of the bone stimulation portion rail (engaging portion). [Figure 21] FIG. 10 is a side view showing the bone impact stimulation device, showing a state in which the second impact part is providing stimulation to the user's lumbar bone. [Figure 22] FIG. 10 is a side view showing the bone impact stimulation device, illustrating a state in which the guided portion is guided in a front-upper direction by the second frame portion. [Figure 23] FIG. 2 is a state transition diagram of the bone impact stimulation device. DETAILED DESCRIPTION OF THE INVENTION

[0010] Hereinafter, a bone impact stimulation device according to an embodiment will be described with reference to the drawings. In the following description, components having the same or similar functions will be assigned the same reference numerals. Duplicate descriptions of those components may be omitted.

[0011] In this specification, left and right are defined based on the direction seen from the user using the bone impact stimulation device. The side in front of the user using the bone impact stimulation device is defined as "front" and the side behind as "rear". In this specification, the left and right direction in the above definition is defined as left and right direction X. In this specification, the front and back direction in the above definition is defined as front and back direction Y. In this specification, the up and down direction is defined as up and down direction Z. In the drawings, the +X direction is the right direction, the -X direction is the left direction, the +Y direction is the front direction, the -Y direction is the rear direction, the +Z direction is the up direction, and the -Z direction is the down direction.

[0012] (First embodiment) [Bone Impact Stimulator 100] 1 to 8, the bone impact stimulation device 100 of the first embodiment will be described. First, the bone impact stimulation device 100 will be described as a whole. However, the bone impact stimulation device 100 does not need to have all of the components described below, and some components may be omitted as appropriate.

[0013] Fig. 1 is a perspective view showing a bone impact stimulator 100. Fig. 2 is a side view showing the bone impact stimulator 100. As shown in Figures 1 and 2, the bone impact stimulation device 100 comprises a base section 1, a main body section 2, a step section 3, a first interlocking section 4, a bone stimulation section 5, an energy storage section 6, and a rail section 7. The bone impact stimulation device 100 is a standing-type stepping exercise device used by a user U in a standing position. The bone impact stimulation device 100 is a device that stimulates the bones of the sole La of the foot in accordance with the stepping movement of the user U.

[0014] The base 1 is a member that is grounded to the ground and supports the main body 2 (described later) from below. As shown in Figures 1 and 2, the base 1 consists of a front base 11 and a rear base 12. The front base 11 and the rear base 12 are spaced apart in the front-to-rear direction Y. The lower end 11t of the front base 11 is grounded to the ground. The main body 2 is fixed to the upper end 11s of the front base 11. The front base 11 and the main body 2 are fixed together by, for example, welding. The front base 11 supports the main body 2 from below. The lower end 12t of the rear base 12 is grounded to the ground. The main body 2 is fixed to the upper end 12s of the rear base 12. The rear base 12 and the main body 2 are fixed together by, for example, welding. The rear base 12 supports the main body 2 from below.

[0015] The main body 2 is a member that rotatably supports the step portion 3, the first interlocking portion 4, etc. As shown in Figures 1 and 2, the main body 2 has a front main body arm portion 21, a rear main body arm portion 22, a step mounting portion 23, a damper mounting portion 24, a bone stimulation portion mounting portion 25, and a biasing member mounting portion 26.

[0016] The front main body arm portion 21 is a rod-shaped member extending upward and rearward from the upper end 11s of the front pedestal portion 11. A lower end portion 21t of the front main body arm portion 21 is fixed to the upper end 11s of the front pedestal portion 11. The front main body arm portion 21 is formed from a material containing metal. Since the front main body arm portion 21 is formed from a material containing metal, its strength is ensured.

[0017] The rear main body arm portion 22 is a rod-shaped member extending upward and forward from the upper end 12s of the rear pedestal portion 12. A lower end 22t of the rear main body arm portion 22 is fixed to the upper end 12s of the rear pedestal portion 12. An upper end 22s of the rear main body arm portion 22 is connected to and fixed to an upper end 21s of the front main body arm portion 21. The front main body arm portion 21 and the rear main body arm portion 22 are fixed together by, for example, welding. The rear main body arm portion 22 is formed from a material containing metal. Since the rear main body arm portion 22 is formed from a material containing metal, strength is ensured.

[0018] The step mounting portion 23 is formed on the front body arm portion 21. The step mounting portion 23 has a rod-like shape with its longitudinal direction in the left-right direction X. The step mounting portion 23 is formed to contain metal. Since the step mounting portion 23 is formed to contain metal, its strength is ensured.

[0019] The damper mounting portion 24 is formed on the lower end portion 21t of the front body arm portion 21. The damper mounting portion 24 has a rod shape with its longitudinal direction in the left-right direction X. The damper mounting portion 24 is formed from a material containing metal. Since the damper mounting portion 24 is formed from a material containing metal, its strength is ensured.

[0020] The bone stimulation unit mounting portion 25 is formed at the lower end portion 21t of the front body arm portion 21. The bone stimulation unit mounting portion 25 has a rod shape with the longitudinal direction being the left-right direction X. The bone stimulation unit mounting portion 25 is formed containing metal. Since the bone stimulation unit mounting portion 25 is formed containing metal, its strength is ensured.

[0021] The biasing member attachment portion 26 is formed on the lower end portion 22t of the rear main body arm portion 22. The biasing member attachment portion 26 has a rod shape with its longitudinal direction in the left-right direction X. The biasing member attachment portion 26 is formed from a material containing metal. Since the biasing member attachment portion 26 is formed from a material containing metal, its strength is ensured.

[0022] The step portion 3 is a member that is stepped on by both feet of the user U. The step portion 3 is rotatable around a first rotation shaft portion (rotation shaft portion) 33, which will be described later, when the user U applies weight to it. As shown in FIG. 1, two step portions 3 are provided, spaced apart in the left-right direction X. The two step portions 3 may be linked together, and may be configured so that, for example, when one step portion 3 moves downward, the other step portion 3 moves upward. In other words, the step portions 3 may be configured so that the user U steps on them alternately with both feet. As shown in FIGS. 1 and 2, the step portion 3 has a step main body portion 31, a support portion 32, a first rotation shaft portion (rotation shaft portion) 33, and a connection portion 34.

[0023] The step main body 31 is a member extending from the step mounting portion 23 of the main body 2. The step main body 31 is formed from a material containing metal. Because the step main body 31 is formed from a material containing metal, it is elastically deformable and has sufficient strength. The material of the step main body 31 is not limited, and it may be formed from a material containing synthetic resin, for example.

[0024] The support portion 32 is provided on the upper portion 31s of the step main body portion 31. The support portion 32 has a plate-like member with the thickness direction in the vertical direction Z. The foot L of the user U is placed on the support portion 32, which supports the foot L of the user U from below. The right foot of the user U is placed on the right support portion 32 of the support portions 32. The left foot of the user U is placed on the left support portion 32 of the support portions 32. The upper surface 32s of the support portion 32 may be formed with unevenness (not shown). The unevenness (not shown) formed on the upper surface 32s of the support portion 32 makes it less likely for the foot L to slip when placed on it. The support portion 32 is formed from a material containing synthetic resin. Since the support portion 32 is formed from a material containing synthetic resin, it is elastically deformable. The material of the support portion 32 is not limited, and it may be formed from a material containing metal, for example.

[0025] The first rotation shaft portion (rotation shaft portion) 33 is provided at the front end 31p of the step main body portion 31. The first rotation shaft portion 33 rotatably connects the step main body portion 31 to the step mounting portion 23. The first rotation shaft portion 33 has, for example, a hole (not shown) that is recessed in the left-right direction X from the side surface of the first rotation shaft portion 33, and a rod-shaped member of the step mounting portion 23 is inserted into the hole. The step main body portion 31 rotates around the first rotation shaft portion 33, with the left-right direction X as the rotation axis.

[0026] The connection part 34 is provided on the lower part 31t of the step main body 31. The connection part 34 has, for example, a rod-shaped member (not shown) whose longitudinal direction is the left-right direction X. The connection part 34 is connected to a damper 41 and an arm part 42 of the first interlocking part 4, which will be described later.

[0027] The first interlocking part 4 is a member that moves the bone stimulation part 5, which will be described later, in a direction away from the step part 3 in conjunction with the action of stepping on the step part 3. The first interlocking part 4 interlocks with the step part 3 when the step part 3 rotates. As shown in FIGS. 1 and 2 , the first interlocking part 4 has a damper 41, an arm part 42, a second rotating shaft part 43, a third rotating shaft part 44, a first restricting part 45, and a guided part 46.

[0028] The damper 41 is a member that extends from the damper mounting portion 24 of the main body 2 toward the connecting portion 34 of the step portion 3. The damper 41 is a rod-shaped member that expands and contracts in the longitudinal direction. The damper 41 is provided with an elastic body (not shown) such as a spring or oil (not shown) with high viscous resistance inside, and weakens impacts applied in the longitudinal direction. An upper end portion 41s of the damper 41 is rotatably connected to the connecting portion 34 of the step portion 3.

[0029] The arm portion 42 is a member that extends from the upper end portion 41s of the damper 41 toward the rail portion 7. The arm portion 42 is formed from a material that contains metal. Since the arm portion 42 is formed from a material that contains metal, strength is ensured.

[0030] The second rotating shaft 43 is provided at a lower end 41t of the damper 41. The second rotating shaft 43 rotatably connects the damper 41 to the damper mounting portion 24. The second rotating shaft 43 has, for example, a hole (not shown) recessed in the left-right direction from the side surface of the second rotating shaft, into which a rod-shaped member of the damper mounting portion 24 is inserted. The damper 41 rotates around the second rotating shaft 43, with the left-right direction X as the rotation axis.

[0031] The third rotation shaft 44 is provided at the upper end 42s of the arm portion 42. The third rotation shaft 44 rotatably connects the arm portion 42 to the connection portion 34 of the step portion 3. The third rotation shaft 44 has, for example, a hole (not shown) recessed in the left-right direction X from the side surface of the third rotation shaft 44, into which a rod-shaped member (not shown) of the connection portion 34 is inserted. The arm portion 42 rotates around the third rotation shaft 44, with the left-right direction X as the rotation axis. A rotation spring (not shown) is provided inside the third rotation shaft 44. The rotation spring (not shown) provided in the third rotation shaft 44 biases the arm portion 42 in a direction returning to the angle formed between the step portion 3 and the arm portion 42 at the initial position P0.

[0032] The first restricting portion 45 is provided on the side surface 42p of the arm portion 42. The first restricting portion 45 protrudes in the left-right direction X from the side surface 42p of the arm portion 42. The first restricting portion 45 is a cylindrical member formed into a substantially circular shape when viewed in the left-right direction X. The first restricting portion 45 is engageable with the bone stimulation unit 5. The first restricting portion 45 engages with an upper portion 55s of a bone stimulation unit rail (engagement portion) 55 of the bone stimulation unit 5, which will be described later, and applies a downward force to the bone stimulation unit rail 55. The first restricting portion 45 may be a roller whose rotation axis is in the left-right direction X.

[0033] The guided portion 46 is provided on the side surface 42p of the arm portion 42 below the first restricting portion 45. The guided portion 46 protrudes in the left-right direction X from the side surface 42p of the arm portion 42. The guided portion 46 is a cylindrical member formed into a substantially circular shape when viewed in the left-right direction X. The guided portion 46 is guided by the rail portion 7. The guided portion 46 may be a roller whose rotation axis is in the left-right direction X.

[0034] The first interlocking portion 4 is movable in conjunction with the rotation of the step portion 3 among an initial position P0, a first position P1, a second position P2, and a third position P3. The initial position P0 is the position where the first interlocking portion 4 is located when no force is applied by the user U. The first interlocking portion 4 automatically returns to the initial position P0 when no external force is applied. The initial position P0 is, for example, the position where the guided portion 46 is fitted into the upper end of a first frame portion 72 (described later) of the rail portion 7 (see FIG. 2). The first position P1 is the position where the first restricting portion 45 is engaged with a bone stimulation portion rail (engagement portion) 55 of the bone stimulation portion 5 (described later) (see FIGS. 4 and 5). When the first interlocking portion 4 is in the first position P1, movement of the first striking portion 53 toward the step portion 3 is restricted, and energy that moves the first striking portion 53 toward the step portion 3 is accumulated in the first biasing member 61. The first striking portion 53 is a component provided in the bone stimulation portion 5 and will be described later. The first biasing member 61 is a member provided in the energy storage unit 6, and will be described later. The second position P2 is a position where the engagement between the first restricting portion 45 and the bone stimulation unit rail 55 is released (see FIG. 6). When the first interlocking portion 4 moves from the first position P1 to the second position P2, the restriction on the movement of the first striking portion 53 toward the step portion 3 is released. The third position P3 is a position where the first interlocking portion 4 is located when returning from the second position P2 to the initial position P0, avoiding interference between the first restricting portion 45 and the bone stimulation unit rail (engagement portion) 55. The third position P3 is, for example, a position where the guided portion 46 is fitted into a second frame portion 73 of the rail portion 7, which will be described later (see FIG. 7).

[0035] The bone stimulation unit 5 is a member that indirectly stimulates bones. However, the bone stimulation unit 5 may also directly stimulate bones. The bone stimulation unit 5 stimulates the bones of the user U using energy stored in the energy storage unit 6. As shown in FIGS. 1 and 2 , the bone stimulation unit 5 has a first arm unit 51, a second arm unit 52, a first striking unit 53, a fourth rotating shaft unit 54, and a bone stimulation unit rail (engagement unit) 55.

[0036] The first arm portion 51 is a member that extends rearward from the bone stimulation unit attachment portion 25 of the main body portion 2. The first arm portion 51 is formed to contain metal. Because the first arm portion 51 contains metal, it is elastically deformable and also has sufficient strength.

[0037] The second arm portion 52 is a member that extends downward from the rear end portion 51t of the first arm portion 51. The second arm portion 52 is formed from a material that contains metal. Because the second arm portion 52 contains metal, it is elastically deformable and also has sufficient strength.

[0038] The first hitting portion 53 is a member that hits the bones of the user U. The first hitting portion 53 stimulates, for example, the bones of the sole La of the user U. The first hitting portion 53 is a member that extends upward from the rear end portion 51t of the first arm portion 51. The first hitting portion 53 is formed in a columnar shape with the vertical direction Z as the longitudinal direction. The first hitting portion 53 is formed in a substantially circular shape when viewed in the vertical direction Z, and the diameter increases from bottom to top. The first hitting portion 53 is formed in a substantially trapezoidal shape when viewed in the left-right direction X and the front-back direction Y. The shape of the first hitting portion 53 is not limited. The first hitting portion 53 is formed, for example, from a material containing rubber.

[0039] The fourth rotating shaft 54 ​​is provided at the front end 51s of the first arm 51. The fourth rotating shaft 54 ​​rotatably connects the first arm 51 to the bone stimulation unit attachment part 25. The fourth rotating shaft 54 ​​has, for example, a hole (not shown) that is recessed in the left-right direction X from the side surface of the fourth rotating shaft 54, and a rod-shaped member of the bone stimulation unit attachment part 25 is inserted into the hole. The first arm 51 rotates around the fourth rotating shaft 54, with the left-right direction X as the rotation axis.

[0040] The bone stimulation unit rail (engagement portion) 55 is a member that can engage with the first restriction portion 45. The bone stimulation unit rail (engagement portion) 55 is provided on the side portion 51p of the first arm portion 51. The bone stimulation unit rail 55 protrudes from the side portion 51p of the first arm portion 51. The bone stimulation unit rail 55 is provided along the longitudinal direction of the first arm portion 51. An upper portion 55s of the bone stimulation unit rail 55 engages with the first restriction portion 45 of the first interlocking portion 4, and receives a downward force from the first restriction portion 45.

[0041] The energy storage unit 6 is a member that stores energy that moves the bone stimulation unit 5 toward the step unit 3. The energy storage unit 6 stores energy generated by the movement of the user U. As shown in FIGS. 1 and 2 , the energy storage unit 6 has a first biasing member 61, a main body attachment portion 62, and a second arm attachment portion 63.

[0042] The first biasing member 61 is a member that biases the first striking portion 53 toward the step portion 3. The first biasing member 61 extends from the biasing member mounting portion 26 of the main body portion 2 toward the lower end portion 52s of the second arm portion 52. When the first biasing member 61 is pulled downward, it biases the member pulling the first biasing member 61 upward. The first biasing member 61 is, for example, a spring.

[0043] The body mounting portion 62 is provided on an upper end 61s of the first biasing member 61. The body mounting portion 62 rotatably connects the first biasing member 61 to the biasing member mounting portion 26 of the body portion 2. The body mounting portion 62 has, for example, a hole (not shown) recessed in the left-right direction X from the side surface of the body mounting portion 62, and the rod-shaped member of the biasing member mounting portion 26 is inserted into the hole. The first biasing member 61 rotates around the body mounting portion 62, with the left-right direction X as the rotation axis.

[0044] The second arm attachment portion 63 is provided on a lower end 61t of the first biasing member 61. The second arm attachment portion 63 rotatably connects the first biasing member 61 to the lower end portion 52s of the second arm portion 52. The first biasing member 61 rotates about the second arm attachment portion 63, with the left-right direction X as the rotation axis.

[0045] The rail portion 7 guides the first interlocking portion 4 from the initial position P0 to the second position P2 via the first position P1, and then returns it to the initial position P0 via the third position P3. As shown in Figures 1 and 2, the rail portion 7 has a rail main body portion 71, a first frame portion 72, a second frame portion 73, and a third frame portion 74.

[0046] The rail main body 71 has a plate shape with its thickness direction aligned with the left-right direction X. The rail main body 71 is provided at a position where it overlaps with the guided portion 46 of the first interlocking part 4.

[0047] The first frame portion 72 has a pair of edge portions 72a whose longitudinal direction is the rear-downward direction. The pair of edge portions 72a are spaced apart in a direction perpendicular to the longitudinal direction, and the guided portion 46 of the first interlocking portion 4 is disposed between the pair of edge portions 72a. When the guided portion 46 receives a downward force, the first frame portion 72 guides the guided portion 46 in the rear-downward direction. The first frame portion 72 guides the first interlocking portion 4 from the initial position P0 to the first position P1 via the guided portion 46.

[0048] The second frame portion 73 has a pair of edge portions 73a with the longitudinal direction extending in the upper-front direction. The pair of edge portions 73a are spaced apart in a direction perpendicular to the longitudinal direction, and the guided portion 46 of the first interlocking portion 4 is disposed between the pair of edge portions 73a. When the guided portion 46 receives a force in the upward direction, the second frame portion 73 guides the guided portion 46 in the upper-front direction. The lower end of the second frame portion 73 is connected to the lower end of the first frame portion 72. The second frame portion 73 guides the first interlocking portion 4 from the second position P2 to the third position P3 via the guided portion 46.

[0049] The third frame portion 74 has a pair of edge portions 74a with the upward direction as the longitudinal direction. The pair of edge portions 74a are spaced apart in a direction perpendicular to the longitudinal direction, and the guided portion 46 of the first interlocking portion 4 is disposed between the pair of edge portions 74a. When the guided portion 46 receives a force in the upward direction, the third frame portion 74 guides the guided portion 46 in a front-upward direction. The lower end of the third frame portion 74 is connected to the upper end of the second frame portion 73. The upper end of the third frame portion 74 is connected to the upper end of the first frame portion 72. The third frame portion 74 guides the first interlocking portion 4 from the third position P3 to the initial position P0 via the guided portion 46.

[0050] Next, the operation of the bone impact stimulation device 100 will be described. FIG. 8 is a state transition diagram of the bone impact stimulator 100. The bone impact stimulation device 100 can be in six states: an initial state (S110), a state in which the guided portion 46 is guided rearward and downward by the first frame portion 72 (S120), a state in which the first restricting portion 45 presses down the bone stimulation unit 5 (S130), a state in which the first restricting portion 45 engages with the lower end of the bone stimulation unit rail (engagement portion) 55 (S140), a state in which the first striking portion 53 stimulates the bones of the sole La of the user U (S150), and a state in which the guided portion 46 is guided forward and upward by the second frame portion 73 (S160). After the state in which the guided portion 46 is guided forward and upward by the second frame portion 73 (S160), the bone impact stimulation device 100 returns to the initial state (S110).

[0051] As shown in FIG. 2, when no external force is applied to the step portion 3, the bone impact stimulation device 100 is in an initial state (S110).

[0052] The foot L of the user U is placed on the support portion 32 of the step portion 3. When the user U applies weight and the foot L pushes down on the step portion 3, the step portion 3 rotates counterclockwise as viewed from the right side around the first rotation shaft portion 33. When the step portion 3 rotates, the first interlocking portion 4 is pushed down via the connection portion 34 of the step portion 3, and the first interlocking portion 4 rotates counterclockwise as viewed from the right side around the second rotation shaft portion 43. In other words, the first interlocking portion 4 interlocks with the step portion 3. When the first interlocking portion 4 rotates, the rotational momentum is damped by the damper 41.

[0053] FIG. 3 is a side view showing the bone impact stimulation device 100, and shows a state (S120) in which the guided portion 46 is guided downward and rearward by the first frame portion 72. When the first interlocking part 4 rotates from the initial position P0 (see FIG. 2), the guided part 46 of the first interlocking part 4 is guided by the first frame part 72 of the rail part 7, as shown in FIG.

[0054] When the first interlocking part 4 rotates further, the guided part 46 is guided rearward and downward by the edge 72a of the first frame part 72. When the guided part 46 is guided rearward and downward, the arm part 42 rotates clockwise as viewed from the right side around the third rotation shaft part 44. When the arm part 42 rotates, the momentum of the rotation is reduced by a rotation spring (not shown) provided on the third rotation shaft part 44.

[0055] After the first interlocking part 4 rotates further, when the first interlocking part 4 rotates by a predetermined angle, the first restricting part 45 of the first interlocking part 4 engages with the upper part 55s of the bone stimulation part rail (engagement part) 55 of the bone stimulation part 5. At this time, the first restricting part 45 restricts the movement of the first striking part 53 via the bone stimulation part rail 55 and the first arm part 51.

[0056] FIG. 4 is a side view showing the bone impact stimulation device 100, showing a state in which the first restricting portion 45 is pressing down the bone stimulation portion 5 (S130). When the first interlocking part 4 further rotates from the state in which the first regulating part 45 is engaged with the upper part 55s of the bone stimulation part rail (engagement part) 55, as shown in Figure 4, as the first interlocking part 4 rotates, the first regulating part 45 pushes down the bone stimulation part 5 via the bone stimulation part rail 55 (first position P1).

[0057] When the bone stimulation unit 5 is pressed down, the lower end 61t of the first biasing member 61 is pressed down as shown in Fig. 4. At this time, energy generated by the movement of the user U is stored in the energy storage unit 6. That is, when the first interlocking unit 4 is in the first position P1, it rotates around the second rotation shaft 43, and energy is stored in the energy storage unit 6.

[0058] FIG. 5 is a side view showing the bone impact stimulation device 100, showing a state in which the first restricting portion 45 is engaged with the lower end of the bone stimulation portion rail (engaging portion) 55 (S140). When the first interlocking portion 4 rotates further, the first restricting portion 45 engages with the lower end of the bone stimulation portion rail 55. At this time, the first biasing member 61 is pressed further downward (first position P1).

[0059] FIG. 6 is a side view showing the bone impact stimulation device 100, showing a state in which the first impact part 53 is applying a stimulus to the bone of the sole La of the user U (S150). After the first interlocking unit 4 rotates further, when the first interlocking unit 4 rotates by a predetermined angle, the first restricting unit 45 disengages from the bone stimulation unit rail (engagement unit) 55, and the lower end 61t of the first biasing member 61 instantaneously moves upward. At this time, the restriction on the movement of the first striking unit 53 by the first restricting unit 45 is released (second position P2). As the lower end 61t of the first biasing member 61 moves upward, the first striking unit 53 also instantaneously moves upward as shown in FIG. 6, and the first striking unit 53 stimulates the bones of the sole La of the user U. In other words, when the first interlocking unit 4 moves from the first position P1 to the second position P2, the bone stimulation unit 5 stimulates the bones of the user U. At this time, the energy stored in the energy storage unit 6 is used.

[0060] FIG. 7 is a side view showing the bone impact stimulation device 100, showing a state (S160) in which the guided portion 46 is guided in the front-upper direction by the second frame portion 73. After the first striking portion 53 impacts the bones of the sole La of the user U, a rotation spring (not shown) provided on the third rotating shaft portion 44 causes the arm portion 42 to rotate counterclockwise as viewed from the right, around the third rotating shaft portion 44. When the arm portion 42 rotates, the guided portion 46 is guided in an upper-front direction by the second frame portion 73 (third position P3), as shown in FIG. 7. When the guided portion 46 is guided in an upper-front direction, the first interlocking portion 4 rotates clockwise as viewed from the right, around the second rotating shaft portion 43. When the first interlocking portion 4 rotates, the step portion 3 rotates clockwise as viewed from the right, around the first rotating shaft portion 33.

[0061] After passing through the third position P3, the first interlocking part 4 returns to the initial position P0 as the guided part 46 is guided upward by the third frame part 74 of the rail part 7. At this time, the bone impact stimulation device 100 returns to the initial state (S110).

[0062] The energy storage unit 6 stores energy generated by the exercise of the user U (energy storage step).

[0063] The bone stimulation unit 5 uses the energy stored in the energy storage unit 6 to stimulate the bones of the user U (bone stimulation step).

[0064] The user U's exercise is an exercise that repeats at least a first step, a second step, and a third step. The first step is a step in which the user U applies force to the bone impact stimulation device 100. For example, the first step is a step in which the user U applies force to the step unit 3, and the user U steps his / her foot L against the support unit 32. The second step is a step in which the user U applies more force to the bone impact stimulation device 100 than in the first step. For example, the second step is a step in which the user U applies more force to the step unit 3 than in the first step, and the user U steps his / her foot L against the support unit 32 than in the first step. The third step is a step in which the user U releases the force that he / she was applying to the bone impact stimulation device 100. For example, the third step is a step in which the user U releases the force that he / she was applying to the step unit 3, and the user U releases his / her foot L from the support unit 32.

[0065] In the first step, the energy storage unit 6 stores energy. In the first step, for example, the first restricting unit 45 and the bone stimulation unit rail (engagement unit) 55 engage with each other, the movement of the first striking unit 53 toward the step unit 3 is restricted, and energy that moves the first striking unit 53 toward the step unit 3 is stored in the first biasing member 61.

[0066] In the second step, the bone stimulation unit 5 uses the energy stored in the energy storage unit 6 to stimulate the bones of the user U. In the second step, for example, the first interlocking unit 4 moves from the first position P1 to the second position P2, the restriction on the movement of the first striking unit 53 toward the step unit 3 is released, and the first striking unit 53 strikes the bones of the user U.

[0067] In the third step, the bone impact stimulation device 100 returns to the initial state (S110). In the third step, for example, the first interlocking part 4 returns to the initial position P0 while avoiding interference with the bone stimulation part rail (engagement part) 55.

[0068] The bone impulse stimulation device 100 of this embodiment is equipped with a bone stimulation unit 5 and an energy storage unit 6, and therefore energy generated when the user U exercises can be stored in the energy storage unit 6, and the stored energy can be used to stimulate the bones of the user U. Therefore, the bone impulse stimulation device 100 can be used without using electricity. Furthermore, the bones of the user U can be stimulated while the user U is exercising.

[0069] According to the bone impact stimulation device 100 of this embodiment, since it has the step unit 3, the user U can use the bone impact stimulation device 100 as a stepping exercise device. Therefore, the energy generated by the stepping exercise is stored in the energy storage unit 6.

[0070] According to the bone impact stimulation device 100 of this embodiment, since the first interlocking unit 4 is provided, energy generated by the exercise of the user U can be stored in the energy storage unit 6.

[0071] According to the bone impact stimulation device 100 of this embodiment, since it has the first impact part 53, it is possible to stimulate the bones of the user U.

[0072] According to the bone impact stimulation device 100 of this embodiment, since the first biasing member 61 is provided, energy for moving the bone stimulation section 5 toward the step section 3 can be stored.

[0073] According to the bone impact stimulation device 100 of this embodiment, since it has a first regulating part 45, the first regulating part 45 engages with the bone stimulation part rail (engagement part) 55, thereby regulating the movement of the first striking part 53 and storing the energy generated by the movement of the user U in the energy storage part 6.

[0074] According to the bone impact stimulation device 100 of this embodiment, the first biasing member 61 is a spring, so that energy that moves the bone stimulation portion 5 toward the step portion 3 can be stored, and the first striking portion 53 can be biased toward the bone of the user U.

[0075] According to the bone impact stimulation device 100 of this embodiment, the first striking portion 53 stimulates the bones of the sole La of the user U, and therefore the cells of the bones of the sole La of the user U can be activated.

[0076] According to the bone impulse stimulation device 100 of this embodiment, the support part 32 is provided in a direction that supports the foot L of the user U from below, so the bone impulse stimulation device 100 is used in a standing position. The standing position type refers to a method in which the user U uses the device in a standing position.

[0077] According to the bone impact stimulation device 100 of this embodiment, the rail portion 7 has the first frame portion 72, so that the first interlocking portion 4 is guided from the initial position P0 to the first position P1 via the guided portion 46. By guiding the first interlocking portion 4 to the first position P1, the first restricting portion 45 engages with the bone stimulation portion rail (engaging portion) 55, and energy can be stored in the energy storage portion 6.

[0078] According to the bone impact stimulation device 100 of this embodiment, since it has the rail portion 7, the first interlocking portion 4 moves from the first position P1 to the second position P2 via the guided portion 46. When the first interlocking portion 4 is moved by the rail portion 7, the engagement between the first restricting portion 45 and the bone stimulation portion rail (engaging portion) 55 is released, and the restriction on the movement of the first striking portion 53 toward the step portion 3 is released.

[0079] According to the bone impact stimulation device 100 of this embodiment, the rail portion 7 has the second frame portion 73, so that the first interlocking portion 4 is guided from the second position P2 to the third position P3 via the guided portion 46. By guiding the first interlocking portion 4 to the third position P3, when the first interlocking portion 4 returns from the second position P2 to the initial position P0, the first interlocking portion 4 can return without interfering with the bone stimulation portion rail (engagement portion) 55.

[0080] According to the bone impact stimulation device 100 of this embodiment, the rail portion 7 has the third frame portion 74, so the first interlocking portion 4 is guided from the third position P3 to the initial position P0 via the guided portion 46. By guiding the first interlocking portion 4 to the initial position P0, the bones of the user U can be repeatedly stimulated.

[0081] According to the bone impact stimulation device 100 of this embodiment, the first interlocking unit 4 is guided by the rail unit 7 from the initial position P0 via the first position P1 to the second position P2, and then from the second position P2 via the third position P3 and back to the initial position P0. By guiding the first interlocking unit 4 to the second position P2 and then returning it to the initial position P0, the rail unit 7 stores energy in the energy storage unit 6 while restricting the movement of the bone stimulation unit 5 toward the step unit 3, and then releases the restriction on the movement of the bone stimulation unit 5 to stimulate the user U's bones, and the bone impact stimulation device 100 is returned to the initial state (S110). This series of operations is repeated. Because the rail unit 7 returns the bone impact stimulation device 100 to the initial state (S110), the user U's bones can be repeatedly stimulated simply by continuing the stepping movement.

[0082] (Second embodiment) [Bone Impact Stimulator 100B] A bone impact stimulation device 100B of the second embodiment will be described with reference to Figures 9 and 10. The bone impact stimulation device 100B of the second embodiment differs from the bone impact stimulation device 100 of the first embodiment in the configuration of the step section 3B and the configuration of the bone stimulation section 5B. In the following description, the same reference numerals are used for the configurations that are common to those already described, and duplicated explanations will be omitted.

[0083] FIG. 9 is a side view showing the bone impact stimulator 100B. The bone impact stimulation device 100B has a through-hole 35 formed in the step portion 3B, and is a device that directly stimulates the bone with the bone stimulation unit 5B. The bone impact stimulation device 100B includes a base portion 1, a main body portion 2, a step portion 3B, a first interlocking portion 4, a bone stimulation unit 5B, an energy storage portion 6, and a rail portion 7.

[0084] The step portion 3B is a member onto which the user U steps with both feet. The step portion 3B is rotatable around a first rotation shaft portion (rotation shaft portion) 33 when the user U applies weight. As shown in FIG. 1, two step portions 3B are provided, spaced apart in the left-right direction X. The two step portions 3B may be linked together, for example, so that when one step portion 3B moves downward, the other step portion 3B moves upward. In other words, the step portions 3B may be configured so that the user U steps onto them alternately with both feet. As shown in FIG. 9, the step portion 3B has a step main body portion 31B, a support portion 32B, a first rotation shaft portion (rotation shaft portion) 33, and a connection portion 34. The step portion 3B of the second embodiment differs from the step portion 3 of the first embodiment in the configurations of the step main body portion 31B and the support portion 32B.

[0085] The step portion 3B has a through hole 35 formed therein that penetrates the step main body portion 31B and the support portion 32B in the vertical direction Z. The through hole 35 is formed at a position where the first striking portion 53 of the bone stimulation portion 5B can pass through. The through hole 35 is formed in a substantially circular shape when viewed in the vertical direction Z. The diameter of the through hole 35 is larger than the diameter of the upper end portion 53s of the first striking portion 53.

[0086] The bone stimulation unit 5B is a member that directly stimulates bones. The bone stimulation unit 5B uses energy stored in the energy storage unit 6 to stimulate the bones of the user U. As shown in FIG. 9 , the bone stimulation unit 5B has a first arm unit 51, a second arm unit 52, a first striking unit 53, a fourth rotating shaft unit 54, a bone stimulation unit rail (engagement unit) 55, and a sensor unit 56. The bone stimulation unit 5B of the second embodiment differs from the bone stimulation unit 5 of the first embodiment in the configuration in which the sensor unit 56 is included.

[0087] The sensor unit 56 is interposed between the rear end 51t of the first arm unit 51 and the first striking unit 53. The sensor unit 56 has an impact sensor (not shown) and a control unit (not shown). The impact sensor (not shown) of the sensor unit 56 measures the magnitude of the force applied when the first striking unit 53 strikes. The control unit (not shown) of the sensor unit 56 outputs a signal to an external device based on the measurement value measured by the impact sensor. For example, the control unit may output a signal based on the measurement value measured by the impact sensor to an external monitor, and the measurement value may be displayed on the monitor. Also, for example, a threshold value may be set for the measurement value measured by the impact sensor. When the measurement value measured by the impact sensor exceeds the threshold value, the control unit may output a signal to an external lamp or speaker to notify the user of an abnormality.

[0088] Next, the operation of the bone impact stimulation device 100B will be described.

[0089] FIG. 10 is a side view showing the bone impact stimulation device 100B, showing a state in which the first impact part 53 is applying a stimulus to the bone of the sole La of the user U. When the restriction on movement by the first restricting portion 45 is released, the first striking portion 53 moves upward. When the first striking portion 53 moves upward, the first striking portion 53 passes upward through the through-hole 35 formed in the step portion 3. As shown in FIG. 10 , the first striking portion 53 directly strikes the sole La of the user U, thereby applying an impact to the bones of the sole La.

[0090] When the first striking unit 53 stimulates the bones of the sole La of the user U, an impact is also applied to the sensor unit 56. When an impact is applied to the sensor unit 56, the magnitude of the force is measured by an impact sensor (not shown) of the sensor unit 56. Thereafter, for example, a signal based on the measurement value is output from a control unit (not shown) of the sensor unit 56 to an external monitor (not shown), and the measurement value is displayed on the external monitor (not shown).

[0091] According to the bone impact stimulation device 100B of this embodiment, since the through-hole 35 is provided, the first impact part 53 can impact the user U's bone directly.

[0092] According to the bone impact stimulation device 100B of this embodiment, since the sensor unit 56 is provided, the magnitude of the force applied by the first hitting unit 53 to the bone of the user U can be measured.

[0093] (Third embodiment) [Bone Impact Stimulator 100C] A bone impact stimulation device 100C according to a third embodiment will be described with reference to Figures 11 to 16. The bone impact stimulation device 100C is a seated stepping exercise device used by the user in a seated position. In the following description, components that are common to those already described will be assigned the same reference numerals and redundant description will be omitted.

[0094] FIG. 11 is a side view showing the bone impact stimulator 100C. The bone impact stimulation device 100C includes a main body portion 2C, a step portion 3C, a first interlocking portion 4C, a bone stimulation portion 5C, an energy storage portion 6C, and a rail portion 7C.

[0095] The main body 2C is a member that rotatably supports the step portion 3C, the bone stimulation portion 5C, etc. As shown in FIG. 11, the bone stimulation portion 5C and the energy storage portion 6C are attached to the main body 2C. The main body 2C is provided with a damper attachment portion 24, a bone stimulation portion attachment portion 25, and a biasing member attachment portion 26. The main body 2C is formed, for example, from a material containing metal. Since the main body 2C is formed from a material containing metal, its strength is ensured.

[0096] The step portion 3C is a member that is stepped on by both feet of the user U. The step portion 3C is rotatable around a first rotation shaft portion (rotation shaft portion) 33C when the user U applies weight thereto. Two step portions 3C may be provided spaced apart in the left-right direction X. The step portion 3C may be configured so that the user U steps on it alternately with both feet. As shown in FIG. 11, the step portion 3C has a step main body portion 31C, a damper 36, a first rotation shaft portion 33C, and a connection portion 34C.

[0097] The step main body 31C has a first link 81, a second link 82, a first crank 83, a second crank (support portion) 84, a first turning pair 85, a second turning pair 86, a third turning pair 87, and a fourth turning pair 88. The step main body 31C has a parallel link structure.

[0098] The first link 81 fixes the connecting portion 34C. A front end 81s of the first link 81 is connected to a lower end 83t of the first crank 83. A rear end 81t of the first link 81 is connected to a lower end 84t of the second crank 84. The first link 81 is formed containing metal. Because the first link 81 is formed containing metal, it is elastically deformable and has sufficient strength.

[0099] A first turning pair 85 is interposed between the first link 81 and the first crank 83. The first turning pair 85 rotatably connects the first crank 83 to the first link 81. The first crank 83 rotates around the first turning pair 85, with the left-right direction X as the rotation axis.

[0100] A second turning pair 86 is interposed between the first link 81 and the second crank 84. The second turning pair 86 rotatably connects the second crank 84 to the first link 81. The second crank 84 rotates around the second turning pair 86, with the left-right direction X as the rotation axis.

[0101] The second link 82 connects the first crank 83 and the second crank 84. A front end 82s of the second link 82 is connected to an upper end 83s of the first crank 83. A rear end 82t of the second link 82 is connected to an upper end 84s of the second crank 84. The second link 82 is formed containing metal. Because the second link 82 is formed containing metal, it is elastically deformable and has sufficient strength.

[0102] A third swivel pair 87 is interposed between the second link 82 and the first crank 83. A fourth swivel pair 88 is interposed between the second link 82 and the second crank 84. The third swivel pair 87 rotatably connects the second link 82 to the first crank 83. The fourth swivel pair 88 rotatably connects the second crank 84 to the second link 82.

[0103] The foot L of the user U is placed on the second crank (support portion) 84. The second crank 84 is a support portion that supports the foot L of the user U from the front. The rear surface 84p of the second crank 84 may be formed with unevenness (not shown). Because the rear surface 84p of the second crank 84 has unevenness (not shown), the placed foot L is less likely to slip.

[0104] The damper 36 is a member that extends from the connecting portion 34C toward the damper mounting portion 24 of the main body portion 2C. The damper 36 is a rod-shaped member that expands and contracts in the longitudinal direction. The damper 36 is provided with an elastic body (not shown) such as a spring or oil (not shown) with high viscous resistance inside, and weakens impacts applied in the longitudinal direction. A rear end portion 36t of the damper 36 is fixed to the connecting portion 34C.

[0105] The first rotation shaft 33C is provided at the front end 36s of the damper 36. The first rotation shaft 33C rotatably connects the damper 36 to the damper mounting portion 24. The first rotation shaft 33C has, for example, a hole (not shown) recessed from the side surface of the first rotation shaft 33C in the left-right direction X, into which a rod-shaped member of the damper mounting portion 24 is inserted. The damper 36 rotates around the first rotation shaft 33C, with the left-right direction X as its rotation axis. The damper 36 is connected to the step main body 31C via a connecting portion 34C. When the damper 36 rotates, the step main body 31C also rotates in conjunction with it. Therefore, the step main body 31C rotates around the first rotation shaft 33C, with the left-right direction X as its rotation axis.

[0106] The first interlocking portion 4C is a member that moves a bone stimulation portion 5C (described later) in a direction away from the step portion 3C in conjunction with the action of stepping on the step portion 3C. The first interlocking portion 4C interlocks with the step portion 3C when the step portion 3C rotates. As shown in FIG. 11 , the first interlocking portion 4C has an arm portion 42C, a second rotation shaft portion 43C, a first restriction portion 45, and a guided portion 46.

[0107] The arm portion 42C is a member that extends from the connection portion 34C toward the rail portion 7. The arm portion 42C is formed from a material that contains metal. Because the arm portion 42C is formed from a material that contains metal, it is elastically deformable and also has sufficient strength.

[0108] The second rotating shaft 43C is provided at the rear end 42Cs of the arm portion 42C. The second rotating shaft 43C rotatably connects the arm portion 42C to the connection portion 34C of the step portion 3C. The second rotating shaft 43C has, for example, a hole (not shown) recessed in the left-right direction X from the side surface of the second rotating shaft 43C, into which a rod-shaped member (not shown) provided at the connection portion 34C is inserted. The arm portion 42C rotates around the second rotating shaft 43C, with the left-right direction X as the rotation axis. A rotation spring (not shown) is provided inside the second rotating shaft 43C. The rotation spring (not shown) provided at the second rotating shaft 43C biases the arm portion 42 in a direction returning to the angle formed between the first link 81 and the arm portion 42 at the initial position P0.

[0109] The first restricting portion 45 is engageable with the bone stimulation unit 5C. The first restricting portion 45 is provided on a side surface 42Cp of the arm portion 42C. The first restricting portion 45 protrudes in the left-right direction X from the side surface 42Cp of the arm portion 42C. The guided portion 46 is provided on the side surface 42Cp of the arm portion 42C below the first restricting portion 45. The guided portion 46 protrudes in the left-right direction X from the side surface 42Cp of the arm portion 42C.

[0110] The first interlocking portion 4C can move in conjunction with the rotation of the step portion 3C among an initial position P0, a first position P1, a second position P2, and a third position P3. The initial position P0 is the position where the first interlocking portion 4C is located when no force is applied by the user U. The first interlocking portion 4C automatically returns to the initial position P0 when no external force is applied. The initial position P0 is, for example, the position where the guided portion 46 is fitted into the upper end of a first frame portion 72C (described later) of the rail portion 7C (see FIG. 11). The first position P1 is the position where the first restricting portion 45 is engaged with a bone stimulation portion rail (engagement portion) 55 of the bone stimulation portion 5C (described later) (see FIGS. 12 and 13). When the first interlocking portion 4C is in the first position P1, movement of the first striking portion 53 toward the step portion 3C is restricted, and energy that moves the first striking portion 53 toward the step portion 3C is accumulated in the first biasing member 61. The second position P2 is a position where the engagement between the first restricting portion 45 and the bone stimulation unit rail 55 is released (see FIG. 14). When the first interlocking portion 4C moves from the first position P1 to the second position P2, the restriction on the movement of the first striking portion 53 toward the step portion 3C is released. The third position P3 is a position where the first interlocking portion 4C is located when returning from the second position P2 to the initial position P0, avoiding interference between the first restricting portion 45 and the bone stimulation unit rail (engagement portion) 55. The third position P3 is, for example, a position where the guided portion 46 is fitted into a second frame portion 73C (described later) of the rail portion 7C (see FIG. 15).

[0111] The bone stimulation unit 5C is a member that indirectly stimulates bones. However, the bone stimulation unit 5C may also directly stimulate bones. The bone stimulation unit 5C stimulates the bones of the user U using energy stored in the energy storage unit 6C. As shown in FIG. 11 , the bone stimulation unit 5C has a first arm unit 51C, a first striking unit 53, a fourth rotating shaft unit 54C, and a bone stimulation unit rail (engagement unit) 55.

[0112] The first arm portion 51C is a rod-shaped member attached to the bone stimulation unit attachment portion 25 of the main body portion 2C. The first arm portion 51C is formed containing a metal. Because the first arm portion 51C contains a metal, it is elastically deformable and also has sufficient strength.

[0113] The first hitting portion 53 is a member that hits the bones of the user U. The first hitting portion 53 stimulates, for example, the bones of the sole La of the user U. The first hitting portion 53 is provided on the lower end portion 51Ct of the first arm portion 51C. The first hitting portion 53 extends rearward and upward from the lower end portion 51Ct of the first arm portion 51C.

[0114] The fourth rotation shaft 54C is provided on the side portion 51Cp of the first arm portion 51C. The fourth rotation shaft 54C rotatably connects the first arm portion 51C to the biasing member attachment portion 26. The fourth rotation shaft 54C has, for example, a hole (not shown) that is recessed in the left-right direction X from the side surface of the fourth rotation shaft 54C, and the rod-shaped member of the biasing member attachment portion 26C is inserted into the hole. The first arm portion 51C rotates around the fourth rotation shaft 54C, with the left-right direction X as the rotation axis.

[0115] The bone stimulation unit rail (engagement portion) 55 is a member that can engage with the first restriction portion 45. The bone stimulation unit rail (engagement portion) 55 is provided on the side portion 51Cp of the first arm portion 51C. The bone stimulation unit rail 55 protrudes from the side portion 51Cp of the first arm portion 51C. The bone stimulation unit rail 55 is provided along the longitudinal direction of the first arm portion 51C. An upper portion 55s of the bone stimulation unit rail 55 engages with the first restriction portion 45 of the first interlocking portion 4C and receives a forward force from the first restriction portion 45.

[0116] The energy storage unit 6C is a member that stores energy that moves the bone stimulation unit 5C toward the step unit 3C. The energy storage unit 6C stores energy generated by the movement of the user U. As shown in FIG. 11 , the energy storage unit 6C has a first biasing member 61, a main body attachment portion 62, and a first arm attachment portion 64.

[0117] The first biasing member 61 is a member that biases the first striking portion 53 toward the step portion 3C. The first biasing member 61 extends from the biasing member mounting portion 26 of the main body portion 2C toward the upper end portion 51Cs of the first arm portion 51C. When the first biasing member 61 is pulled rearward, it biases the member pulling the first biasing member 61 forward. The first biasing member 61 is, for example, a spring.

[0118] The main body attachment portion 62 is provided at a front end 61p of the first biasing member 61. The first biasing member 61 rotates about the main body attachment portion 62 with the left-right direction X as the rotation axis.

[0119] The first arm attachment portion 64 is provided at the rear end 61q of the first biasing member 61. The first arm attachment portion 64 rotatably connects the first biasing member 61 to the upper end portion 51Cs of the first arm portion 51C. The first biasing member 61 rotates about the first arm attachment portion 64, with the left-right direction X as the rotation axis.

[0120] The rail portion 7C guides the first interlocking portion 4C from the initial position P0 to the second position P2 via the first position P1, and then returns it to the initial position P0 via the third position P3. The rail portion 7C has a first frame portion 72C, a second frame portion 73C, and a third frame portion 74C. The rail portion 7C is provided at a position overlapping with the guided portion 46 of the first interlocking portion 4C when viewed from the left-right direction X.

[0121] The first frame portion 72C has a pair of edge portions 72Ca whose longitudinal direction is the front-bottom direction. The pair of edge portions 72Ca are spaced apart in a direction perpendicular to the longitudinal direction, and the guided portion 46 of the first interlocking portion 4C is disposed between the pair of edge portions 72Ca. When the guided portion 46 receives a forward force, the first frame portion 72C guides the guided portion 46 in the front-bottom direction. The first frame portion 72C guides the first interlocking portion 4C from the initial position P0 to the first position P1 via the guided portion 46.

[0122] The second frame portion 73C has a pair of edge portions 73Ca. The edge portion 73Ca extends upward from the lower end of the edge portion 72Ca of the first frame portion 72C. The edge portion 73Ca extends upward while curving forward. The pair of edge portions 73Ca are spaced apart in a direction perpendicular to the longitudinal direction, and the guided portion 46 of the first interlocking portion 4C is disposed between the pair of edge portions 73Ca. When the guided portion 46 receives an upward force, the second frame portion 73C guides the guided portion 46 upward. The second frame portion 73C guides the first interlocking portion 4C from the second position P2 to the third position P3 via the guided portion 46.

[0123] The third frame portion 74C has a pair of edge portions 74Ca. The edge portions 74Ca extend rearward and downward from the upper end of the edge portion 73Ca of the second frame portion 73C toward the edge portion 72Ca of the first frame portion 72C. The pair of edge portions 73Ca are spaced apart in a direction perpendicular to the longitudinal direction, and the guided portion 46 of the first interlocking portion 4C is disposed between the pair of edge portions 73Ca. When the guided portion 46 receives a rearward force, the third frame portion 74C guides the guided portion 46 rearward and downward. The third frame portion 74C guides the first interlocking portion 4C from the third position P3 to the initial position P0 via the guided portion 46.

[0124] Next, the operation of the bone impact stimulation device 100C will be described. FIG. 16 is a state transition diagram of the bone impact stimulator 100C. The bone impact stimulation device 100C can be in five states: an initial state (S310), a state in which the first restricting portion 45 is engaged with the bone stimulation portion rail (engagement portion) 55 (S320), a state in which the first restricting portion 45 is engaged with the lower end of the bone stimulation portion rail (engagement portion) 55 (S330), a state in which the first striking portion 53 is providing stimulation to the bones of the sole La of the user U (S340), and a state in which the guided portion 46 is guided upward by the second frame portion 73C (S350). After the state in which the guided portion 46 is guided upward by the second frame portion 73C (S350), the bone impact stimulation device 100C returns to the initial state (S310).

[0125] As shown in FIG. 11, when no external force is applied to the step portion 3, the bone impact stimulation device 100C is in the initial state (S310).

[0126] The foot L of the user U is placed on the second crank (support portion) 84 of the step portion 3C. When the user U applies weight and the foot L pushes the step portion 3C forward, the step portion 3C rotates clockwise as viewed from the left side about the first rotation shaft portion 33C. When the step portion 3C rotates, the momentum of the rotation is reduced by the damper 36.

[0127] When the step portion 3C rotates from a state in which the first interlocking portion 4C is in the initial position P0, the guided portion 46 is guided in a downward-front direction by the edge portion 72Ca of the first frame portion 72C. When the guided portion 46 is guided in a downward-front direction, the first interlocking portion 4C rotates clockwise around the second rotating shaft portion 43C as viewed from the right side. In other words, the first interlocking portion 4C interlocks with the step portion 3C. When the first interlocking portion 4C rotates, the momentum of the rotation is reduced by a rotation spring (not shown) provided on the second rotating shaft portion 43C.

[0128] After the first interlocking part 4C rotates further, when the first interlocking part 4C rotates by a predetermined angle, the first restricting part 45 of the first interlocking part 4C engages with the upper part 55s of the bone stimulation part rail (engagement part) 55 of the bone stimulation part 5C (first position P1). At this time, the first restricting part 45 restricts the movement of the first striking part 53 via the bone stimulation part rail 55 and the first arm part 51C.

[0129] FIG. 12 is a side view showing the bone impact stimulation device 100C, and shows a state (S320) in which the first restricting portion 45 is engaged with the bone stimulation portion rail (engaging portion) 55. When the first interlocking part 4C rotates further from the state in which the first regulating part 45 is engaged with the upper part 55s of the bone stimulation part rail 55, as shown in Figure 12, as the first interlocking part 4C rotates, the first regulating part 45 pushes the bone stimulation part 5C forward via the bone stimulation part rail 55 (first position P1).

[0130] When the bone stimulation unit 5C is pushed forward, the rear end 61q of the first biasing member 61 is pushed backward, as shown in Fig. 12. At this time, energy generated by the movement of the user U is stored in the energy storage unit 6C. That is, when the first interlocking unit 4C is in the first position P1, it rotates around the second rotation shaft 43, and energy is stored in the energy storage unit 6C.

[0131] FIG. 13 is a side view showing the bone impact stimulation device 100C, showing a state in which the first restricting portion 45 is engaged with the lower end of the bone stimulation portion rail (engaging portion) 55 (S330). When the first interlocking portion 4C rotates further, the first restricting portion 45 engages with the lower end of the bone stimulation portion rail 55. At this time, the first biasing member 61 is pressed further rearward (first position P1).

[0132] FIG. 14 is a side view showing the bone impact stimulation device 100C, showing a state in which the first striking part 53 is applying a stimulus to the bone of the sole La of the user U (S340). After the first interlocking portion 4C further rotates, when the first interlocking portion 4C rotates by a predetermined angle, the first restricting portion 45 disengages from the bone stimulation portion rail (engagement portion) 55, and the rear end 61q of the first biasing member 61 instantaneously moves forward. At this time, the restriction on the movement of the first striking portion 53 by the first restricting portion 45 is released (second position P2). As the rear end 61q of the first biasing member 61 moves forward, the first striking portion 53 instantaneously moves forward as shown in FIG. 14, and the first striking portion 53 stimulates the bones of the sole La of the user U. In other words, when the first interlocking portion 4C moves from the first position P1 to the second position P2, the bone stimulation portion 5C stimulates the bones of the user U. At this time, the energy stored in the energy storage portion 6C is used.

[0133] FIG. 15 is a side view showing the bone impact stimulation device 100C, showing a state (S350) in which the guided portion 46 is guided upward by the second frame portion 73C. After the first striking portion 53 impacts the bones of the sole La of the user U, a rotation spring (not shown) provided on the second rotating shaft 43C causes the first interlocking portion 4C to rotate clockwise as viewed from the left about the second rotating shaft 43C. When the first interlocking portion 4C rotates, the guided portion 46 is guided upward by the second frame portion 73C (third position P3), as shown in FIG. 15. When the guided portion 46 is guided upward, the step portion 3C rotates counterclockwise as viewed from the left about the first rotating shaft 33C.

[0134] After passing through the third position P3, the first interlocking part 4C returns to the initial position P0 as the guided part 46 is guided rearward by the third frame part 74C of the rail part 7C. At this time, the bone impact stimulation device 100C returns to the initial state (S310).

[0135] The user U's exercise is an exercise that repeats at least a first step, a second step, and a third step. The first step is a step in which the user U applies force to the bone impact stimulation device 100C. For example, the first step is a step in which the user U applies force to the step portion 3C, and the user U steps his / her foot L against the second crank (support portion) 84. The second step is a step in which the user U applies more force to the bone impact stimulation device 100C than in the first step. For example, the second step is a step in which the user U applies more force to the step portion 3C than in the first step, and the user U steps his / her foot L against the second crank (support portion) 84 than in the first step. The third step is a step in which the user U releases the force that he / she was applying to the bone impact stimulation device 100C. For example, the third step is a step in which the user U releases the force that he / she was applying to the step portion 3C, and the user U releases his / her foot L from the second crank (support portion) 84.

[0136] In the first step, the energy storage unit 6C stores energy. In the first step, for example, the first restricting unit 45 and the bone stimulation unit rail (engagement unit) 55 engage with each other, the movement of the first striking unit 53 toward the step portion 3C is restricted, and energy that moves the first striking unit 53 toward the step portion 3C is stored in the first biasing member 61.

[0137] In the second step, the bone stimulation unit 5C uses the energy stored in the energy storage unit 6C to stimulate the bones of the user U. In the second step, for example, the first interlocking unit 4C moves from the first position P1 to the second position P2, the restriction on the movement of the first striking unit 53 toward the step unit 3C is released, and the first striking unit 53 strikes the bones of the user U.

[0138] In the third step, the bone impact stimulation device 100 returns to the initial state (S310). In the third step, for example, the first interlocking part 4C returns to the initial position P0 while avoiding interference with the bone stimulation part rail (engagement part) 55.

[0139] According to the bone impact stimulation device 100C of this embodiment, since the step main body portion 31C is provided, the foot L of the user U can be supported from the front by the second crank (support portion) 84.

[0140] According to the bone impact stimulation device 100C of this embodiment, the second crank (supporting part) 84 is provided in a direction that supports the foot L of the user U from the front, so the bone impact stimulation device 100C is used in a seated position. The seated position type is a type that is used by the user U in a sitting position.

[0141] According to the bone impact stimulation device 100C of this embodiment, the rail portion 7C has a first frame portion 72C, so the first interlocking portion 4C is guided from the initial position P0 to the first position P1 via the guided portion 46. By guiding the first interlocking portion 4C to the first position P1, the first restricting portion 45 engages with the bone stimulation portion rail (engaging portion) 55, and energy can be stored in the energy storage portion 6C.

[0142] According to the bone impact stimulation device 100C of this embodiment, since it has a rail portion 7C, the first interlocking portion 4C moves from the first position P1 to the second position P2 via the guided portion 46. By moving the first interlocking portion 4C by the rail portion 7C, the engagement between the first restricting portion 45 and the bone stimulation portion rail (engaging portion) 55 is released, and the restriction on the movement of the first striking portion 53 toward the step portion 3C is released.

[0143] According to the bone impact stimulation device 100C of this embodiment, the rail portion 7C has the second frame portion 73C, so the first interlocking portion 4C is guided from the second position P2 to the third position P3 via the guided portion 46. By guiding the first interlocking portion 4C to the third position P3, when the first interlocking portion 4C returns from the second position P2 to the initial position P0, the first interlocking portion 4C can return without interfering with the bone stimulation portion rail (engagement portion) 55.

[0144] According to the bone impact stimulation device 100C of this embodiment, the rail portion 7C has the third frame portion 74C, so the first interlocking portion 4C is guided from the third position P3 to the initial position P0 via the guided portion 46. By guiding the first interlocking portion 4C to the initial position P0, the bones of the user U can be repeatedly stimulated.

[0145] According to the bone impact stimulation device 100C of this embodiment, the first interlocking unit 4C is guided by the rail unit 7C from the initial position P0 via the first position P1 to the second position P2, and then from the second position P2 via the third position P3 to the initial position P0. The rail unit 7C guides the first interlocking unit 4C to the second position P2 and then returns it to the initial position P0. This process restricts the movement of the bone stimulation unit 5C toward the step unit 3C while storing energy in the energy storage unit 6C. The restriction on the movement of the bone stimulation unit 5C is then released, stimulating the user U's bones, and the bone impact stimulation device 100C is returned to the initial state (S310). Because the rail unit 7C returns the bone impact stimulation device 100C to the initial state (S310), the user U can repeatedly stimulate the user U's bones simply by continuing the stepping motion.

[0146] (Fourth embodiment) [Bone Impact Stimulator 100D] A bone impact stimulation device 100D according to a fourth embodiment will be described with reference to Fig. 17 to Fig. 23. The bone impact stimulation device 100D is a back muscle training device. In the following description, the same components as those already described will be assigned the same reference numerals and redundant description will be omitted.

[0147] Fig. 17 is a front view showing the bone impact stimulator 100D. Fig. 18 is a side view showing the bone impact stimulator 100D. As shown in Figures 17 and 18, the bone impact stimulation device 100D comprises a base portion 1D, a main body portion 2D, a grip portion 3D, a second interlocking portion 4D, a bone stimulation portion 5D, an energy storage portion 6D, and a rail portion 7.

[0148] The base 1D is a member that is grounded to the ground and supports the main body 2D, which will be described later, from below. As shown in FIGS. 17 and 18, the base 1D is a plate-like member whose thickness direction is the vertical direction Z. The base 1D is formed into a substantially rectangular shape when viewed from the vertical direction Z. A lower end 1Dt of the base 1D is grounded to the ground. A first pillar 27a, a second pillar 27b, and a third pillar 27c of the main body 2D, which will be described later, are fixed to an upper surface 1Ds of the base 1D. The base 1D supports the first pillar 27a, the second pillar 27b, and the third pillar 27c from below.

[0149] 17 and 18, the main body 2D is a member that rotatably supports the second interlocking unit 4D, the bone stimulation unit 5D, etc. The main body 2D has a first pillar 27a, a second pillar 27b, a third pillar 27c, a ceiling 27d, a horizontal plate 27e, an arm 27f, a seat 28, a first pulley 29a, a second pulley 29b, a wire R, a weight W, a lever mounting unit 24D, a bone stimulation unit mounting unit 25, and a biasing member mounting unit 26.

[0150] The first pillar portion 27a extends upward from the rear end portion 1Dq of the upper surface 1Ds of the base portion 1D. A lower end 27at of the first pillar portion 27a is fixed to the upper surface 1Ds of the base portion 1D. The first pillar portion 27a is fixed to the upper surface 1Ds of the base portion 1D, for example, by welding. The first pillar portion 27a is formed from a material containing metal. Since the first pillar portion 27a is formed from a material containing metal, strength is ensured. Two first pillar portions 27a are provided, spaced apart in the left-right direction X. The first pillar portion 27a consists of a first pillar portion 27am and a first pillar portion 27an.

[0151] The second pillar portion 27b extends upward from the upper surface 1Ds of the base portion 1D. The second pillar portion 27b is located forward of the first pillar portion 27a. The lower end 27bt of the second pillar portion 27b is fixed to the upper surface 1Ds of the base portion 1D. The second pillar portion 27b is fixed to the upper surface 1Ds of the base portion 1D, for example, by welding. The second pillar portion 27b is formed containing metal. Since the second pillar portion 27b is formed containing metal, its strength is ensured. Three second pillar portions 27b are provided spaced apart in the left-right direction X. The second pillar portion 27b consists of a second pillar portion 27bl, a second pillar portion 27bm, and a second pillar portion 27bn. The second pillar portion 27bm is located between the second pillar portion 27bl and the second pillar portion 27bn. The length of the second pillar portion 27b in the up-down direction Z is greater than the length of the first pillar portion 27a in the up-down direction Z.

[0152] The third pillar portion 27c extends upward from the front end portion 1Dp of the upper surface 1Ds of the base portion 1D. A lower end 27ct of the third pillar portion 27c is fixed to the upper surface 1Ds of the base portion 1D. The third pillar portion 27c is fixed to the upper surface 1Ds of the base portion 1D, for example, by welding. The third pillar portion 27c is formed containing metal. Because the third pillar portion 27c is formed containing metal, its strength is ensured. Two third pillar portions 27c are provided, spaced apart in the front-to-rear direction Y. The third pillar portion 27c consists of a third pillar portion 27cm and a third pillar portion 27cn. The length of the third pillar portion 27c in the up-down direction Z is equal to the length of the second pillar portion 27b in the up-down direction Z.

[0153] The ceiling portion 27d is supported from below by the second pillar portion 27b and a third pillar portion 27c (described later). The ceiling portion 27d has a plate-like shape formed into a substantially rectangular shape when viewed from the vertical direction Z. The lower surface 27dt of the ceiling portion 27d is fixed to the upper end 27bs of the second pillar portion 27b and the upper end 27cs of the third pillar portion 27c. The ceiling portion 27d is fixed to the upper end 27bs of the second pillar portion 27b and the upper end 27cs of the third pillar portion 27c, for example, by welding. The ceiling portion 27d is formed from a material containing metal. Because the ceiling portion 27d is formed from a material containing metal, its strength is ensured.

[0154] The horizontal plate portion 27e is supported from below by the upper end 27as of the first pillar portion 27a. The horizontal plate portion 27e has a plate-like shape formed into a substantially rectangular shape when viewed from the vertical direction Z. The horizontal plate portion 27e extends from the upper end 27as of the first pillar portion 27am to the upper end 27as of the first pillar portion 27an. The lower surface 27et of the horizontal plate portion 27e is fixed to the upper end 27as of the first pillar portion 27a. The horizontal plate portion 27e is fixed to the upper end 27as of the first pillar portion 27a, for example, by welding. The horizontal plate portion 27e is formed containing metal. Because the horizontal plate portion 27e is formed containing metal, strength is ensured.

[0155] The arm portion 27f extends rearward from the rear surface 27bq of the second pillar portion 27bm to the seat surface 28, which will be described later. A front end 27fs of the arm portion 27f is fixed to the rear surface 27bq of the second pillar portion 27bm. The arm portion 27f is fixed to the rear surface 27bq of the second pillar portion 27bm, for example, by welding. The arm portion 27f is formed to contain metal. Since the arm portion 27f is formed to contain metal, strength is ensured.

[0156] The seat surface 28 is provided between the horizontal plate portion 27e and the arm portion 27f in the front-to-rear direction Y. The seat surface 28 is formed from the front surface 27ep of the horizontal plate portion 27e to the rear end 27ft of the arm portion 27f. The user U sits on the seat surface 28, which supports the waist H of the user U from below.

[0157] The first pulley 29a is formed at a front end 27dp of the ceiling portion 27d. The first pulley 29a rotates around an axis of rotation in the left-right direction X. The second pulley 29b is provided at a rear end 27dq of the ceiling portion 27d. The second pulley 29b rotates around an axis of rotation in the left-right direction X.

[0158] The wire R is hung between the first pulley 29a and the second pulley 29b. A front region Rp of the wire R hangs downward from a front end 29as of the first pulley 29a. A rear region Rq of the wire R extends rearward from the first pulley 29a to the second pulley 29b. A rear end Rt of the wire R hangs downward from a rear end 29bt of the second pulley 29b.

[0159] The weight W is attached to the rear end Rt of the wire R. A plurality of weights W may be attached. The weight of the weights W may be adjustable by changing the number of weights attached and the type of weight.

[0160] The lever mounting portion 24D is provided on the second pillar portion 27bm. The bone stimulation portion mounting portion 25 is provided on the second pillar portion 27bm. The bone stimulation portion mounting portion 25 is provided below the lever mounting portion 24D. The biasing member mounting portion 26 is provided on the lower surface 28t of the seat surface 28.

[0161] The grip portion 3D is a member that is held by the user U. The grip portion 3D is movable in the up and down direction Z. As shown in FIGS. 17 and 18, the grip portion 3D has an arm portion 31D and a holding portion 32D.

[0162] The arm portion 31D is a rod-shaped member whose longitudinal direction is the left-right direction X. The arm portion 31D is attached to the front end Rs of the wire R. The arm portion 31D is pulled upward by the wire R. The arm portion 31D is formed containing metal. Because the arm portion 31D is formed containing metal, it is elastically deformable and also has sufficient strength.

[0163] The grip portion 32D is composed of a right grip portion 32Da and a left grip portion 32Db. The right grip portion 32Da is a rod-shaped member extending downward and to the right from the right end 31Ds of the arm portion 31D. The left grip portion 32Db is a rod-shaped member extending downward and to the left from the left end 31Dt of the arm portion 31D. The grip portion 32D is formed containing metal. Because the grip portion 32D is formed containing metal, it is elastically deformable and has additional strength. For example, a rubber grip may be attached to the surface of the grip portion 32D, or uneven surfaces may be formed to prevent slipping.

[0164] The second interlocking part 4D is a member that interlocks with the grip part 3D when the grip part 3D moves downward. The second interlocking part 4D is a member that interlocks with the movement of the holding part 32D and moves a bone stimulation part 5D (described later) in a direction away from the seat surface 28. As shown in FIGS. 17 and 18 , the second interlocking part 4D has a lever 41D, an arm part 42D, a second rotation shaft part 43, a first pair 47, a second pair 48, a second restriction part 45D, and a guided part 46.

[0165] The lever 41D is attached to a lever attachment portion 24D provided on the second pillar portion 27bm. An upper end portion 41Ds of the lever 41D is connected to an upper end 42Ds of an arm portion 42D, which will be described later. A lower end 41Dt of the lever 41D is connected to a front region Rp of the wire R. The lever 41D is a rod-shaped member that expands and contracts in the longitudinal direction.

[0166] The arm portion 42D is a member that extends from the upper end portion 41Ds of the lever 41D toward the rail portion 7. The arm portion 42D is formed from a material that contains metal. Because the arm portion 42D is formed from a material that contains metal, it is elastically deformable and has sufficient strength.

[0167] The second rotation shaft portion 43 is provided on the lever 41D. The lever 41D rotates around the second rotation shaft portion 43, with the left-right direction X as the rotation axis.

[0168] The first pair 47 is interposed between the upper end 41Ds of the lever 41D and the upper end 42Ds of the arm portion 42D. The first pair 47 rotatably connects the arm portion 42D to the lever 41D. The arm portion 42D rotates around the first pair 47, with the left-right direction X as the rotation axis.

[0169] The second pair 48 is interposed between the lower end 41Dt of the lever 41D and the front region Rp of the wire R. The second pair 48 connects the lever 41D to be rotatable with respect to the front region Rp of the wire R. The lever 41D rotates around the second pair 48, with the left-right direction X as the rotation axis.

[0170] The second restricting portion 45D is a member that can engage with the bone stimulation unit 5D. The second restricting portion 45D is provided on a side surface 42Dp of the arm portion 42D. The second restricting portion 45D protrudes in the left-right direction X from the side surface 42Dp of the arm portion 42D. The second restricting portion 45D is a columnar member that is formed into a substantially circular shape when viewed in the left-right direction X. The second restricting portion 45D engages with an upper portion 55s of a bone stimulation unit rail (engagement portion) 55 of the bone stimulation unit 5D, which will be described later, and applies a downward force to the bone stimulation unit rail 55. The second restricting portion 45D may be a roller whose rotation axis is in the left-right direction X.

[0171] The guided portion 46 is provided on the side surface 42Dp of the arm portion 42D below the second restricting portion 45D. The guided portion 46 is guided by the rail portion 7.

[0172] The second interlocking portion 4D is movable in conjunction with the movement of the grip portion 3D among an initial position P0, a first position P1, a second position P2, and a third position P3. The initial position P0 is the position where the second interlocking portion 4D is located when no force is applied by the user U. The second interlocking portion 4D automatically returns to the initial position P0 when no external force is applied. The initial position P0 is, for example, the position where the guided portion 46 is fitted into the upper end of a first frame portion 72 (described later) of the rail portion 7 (see FIG. 18). The first position P1 is the position where the second restricting portion 45D engages with the bone stimulation portion rail (engagement portion) 55 of the bone stimulation portion 5D (see FIGS. 19 and 20). When the second interlocking portion 4D is in the first position P1, the upward movement of the second hitting portion 53D is restricted, and energy that moves the second hitting portion 53D upward is accumulated in the second biasing member 61D. The second striking portion 53D is a member provided in the bone stimulation portion 5D and will be described later. The second biasing member 61D is a member provided in the energy storage portion 6D and will be described later. The second position P2 is a position where the engagement between the second restricting portion 45D and the bone stimulation portion rail 55 is released (see FIG. 21). When the second interlocking portion 4D moves from the first position P1 to the second position P2, the restriction on the upward movement of the second interlocking portion 4D is released. The third position P3 is a position where the second interlocking portion 4D is located when returning from the second position P2 to the initial position P0, avoiding interference between the second restricting portion 45D and the bone stimulation portion rail (engagement portion) 55. The third position P3 is, for example, a position where the guided portion 46 is fitted into a second frame portion 73 of the rail portion 7, which will be described later (see FIG. 22).

[0173] The bone stimulation unit 5D is a member that indirectly stimulates bones. However, the bone stimulation unit 5D may also directly stimulate bones. The bone stimulation unit 5D stimulates the bones of the user U using energy stored in the energy storage unit 6D. As shown in FIGS. 17 and 18 , the bone stimulation unit 5D has a first arm unit 51, a second arm unit 52, a second striking unit 53D, a fourth rotating shaft unit 54, and a bone stimulation unit rail (engagement unit) 55.

[0174] The first arm portion 51 is a member extending rearward from the bone stimulation unit mounting portion 25 provided on the second pillar portion 27bm. The second arm portion 52 is a member extending downward from the rear end portion 51t of the first arm portion 51. The fourth rotation shaft portion 54 is provided on the front end portion 51s of the first arm portion 51. The first arm portion 51 rotates around the fourth rotation shaft portion 54, with the left-right direction X as the rotation axis. The bone stimulation unit rail (engagement portion) 55 is a member that can engage with the second restriction portion 45D. The bone stimulation unit rail (engagement portion) 55 is provided on the side portion 51p of the first arm portion 51.

[0175] The second hitting portion 53D is a member that stimulates the bones of the user U. The second hitting portion 53D is a member that stimulates, for example, the bones of the hip H of the user U. The second hitting portion 53D is a member that extends upward from the rear end portion 51t of the first arm portion 51. The second hitting portion 53D is formed in a columnar shape with the vertical direction Z as its longitudinal direction. The second hitting portion 53D is formed in a substantially circular shape when viewed in the vertical direction Z, and the diameter increases from bottom to top. The second hitting portion 53D is formed in a substantially trapezoidal shape when viewed in the left-right direction X and the front-back direction Y. The second hitting portion 53D is formed to include rubber.

[0176] The energy storage unit 6D is a member that stores energy that moves the bone stimulation unit 5D toward the seat surface 28. The energy storage unit 6D stores energy generated by the movement of the user U. As shown in FIGS. 17 and 18 , the energy storage unit 6D has a second biasing member 61D, a main body attachment portion 62, and a second arm attachment portion 63.

[0177] The second biasing member 61D is a member that biases the second striking portion 53D upward. The second biasing member 61D extends from the biasing member mounting portion 26 provided on the seat surface 28 toward the lower end portion 52s of the second arm portion 52. When the second biasing member 61D is pulled downward, it biases the member pulling the second biasing member 61D upward. The second biasing member 61D is, for example, a spring.

[0178] The main body mounting portion 62 is provided at an upper end 61Ds of the second biasing member 61D. The second biasing member 61D rotates around the main body mounting portion 62, with the left-right direction X as its rotation axis. The second arm mounting portion 63 is provided at a lower end 61Dt of the second biasing member 61D. The second biasing member 61D rotates around the second arm mounting portion 63, with the left-right direction X as its rotation axis.

[0179] Next, the operation of the bone impact stimulation device 100D will be described. FIG. 23 is a state transition diagram of the bone impact stimulator 100D. The bone impact stimulation device 100D can be in five states: an initial state (S410), a state in which the second restricting portion 45D presses down the bone stimulation portion 5D (S420), a state in which the second restricting portion 45D engages with the lower end of the bone stimulation portion rail (engagement portion) 55 (S430), a state in which the second striking portion 53D stimulates the bones of the user U's hip H (S440), and a state in which the guided portion 46 is guided forward and upward by the second frame portion 73 (S450). After the state in which the guided portion 46 is guided forward and upward by the second frame portion 73 (S450), the bone impact stimulation device 100D returns to the initial state (S410).

[0180] As shown in FIG. 18, the bone impact stimulation device 100D is in an initial state (S410) when no external force is applied to the grip portion 3D.

[0181] The grip portion 32D of the grip unit 3D is gripped by the user U. When the grip portion 3D is moved downward by the user U, the rear end Rt of the wire R is pulled downward. When the rear end Rt of the wire R is pulled downward, the front end Rs of the wire R is moved upward by the first pulley 29a and the second pulley 29b.

[0182] When the front end Rs of the wire R moves upward, the second pair 48 moves upward. As the second pair 48 moves upward, the lever 41D rotates clockwise around the second rotation shaft portion 43 as viewed from the right. As the lever 41D rotates, the second interlocking portion 4D moves downward from the initial position P0 (see FIG. 18). In other words, the grip portion 3D and the second interlocking portion 4D are interlocked via the wire R and the lever 41D.

[0183] The second interlocking portion 4D moves further downward, and when the second interlocking portion 4D moves downward a predetermined distance, the guided portion 46 of the second interlocking portion 4D abuts against the edge portion 72a of the first frame portion 72 of the rail portion 7.

[0184] When the second interlocking portion 4D moves further downward from a state in which the guided portion 46 abuts against the edge portion 72a of the first frame portion 72, as the second interlocking portion 4D moves, the guided portion 46 is guided rearward and downward by the edge portion 72a of the first frame portion 72. When the guided portion 46 is guided rearward and downward, the arm portion 42D rotates counterclockwise as viewed from the right side around the first pair 47. When the arm portion 42D rotates, the momentum of the rotation is reduced by a rotation spring (not shown) provided in the first pair 47.

[0185] After the second interlocking part 4D moves further downward, when the second interlocking part 4D moves a predetermined distance, the second restricting part 45D of the second interlocking part 4D engages with the upper part 55s of the bone stimulation part rail (engagement part) 55 of the bone stimulation part 5D (first position P1). At this time, the second restricting part 45D restricts the movement of the second hitting part 53D via the bone stimulation part rail 55 and the first arm part 51.

[0186] FIG. 19 is a side view showing the bone impact stimulation device 100D, showing a state (S420) in which the second restriction portion 45D presses down the bone stimulation portion 5D. When the second interlocking portion 4D moves further downward from the state in which the second regulating portion 45D is engaged with the upper portion 55s of the bone stimulation portion rail (engagement portion) 55, as shown in Figure 19, as the second interlocking portion 4D moves, the second regulating portion 45D pushes down the bone stimulation portion 5D via the bone stimulation portion rail 55.

[0187] When the bone stimulation unit 5D is pressed down, the lower end 61Dt of the second biasing member 61D is pressed down, as shown in Fig. 19. That is, when the second interlocking unit 4D is at the first position P1, it moves downward, and energy is stored in the energy storage unit 6D. At this time, energy generated by the movement of the user U is stored in the energy storage unit 6D.

[0188] FIG. 20 is a side view showing the bone impact stimulation device 100D, and shows a state in which the second restriction portion 45D is engaged with the lower end of the bone stimulation portion rail (engagement portion) 55 (S430). When the second interlocking portion 4D moves further downward, the second restricting portion 45D engages with the lower end of the bone stimulation portion rail 55. At this time, the second biasing member 61D is pressed further downward (first position P1).

[0189] FIG. 21 is a side view showing the bone impact stimulation device 100D, showing a state in which the second hitting part 53D is applying a stimulus to the bones of the hip H of the user U (S440). After the second interlocking portion 4D moves further downward, when the second interlocking portion 4D moves a predetermined distance, the second restricting portion 45D disengages from the bone stimulation portion rail 55 (engagement portion), and the lower end 61Dt of the second biasing member 61D instantaneously moves upward. At this time, the restriction on the movement of the second hitting portion 53D by the second restricting portion 45D is released (second position P2). As the lower end 61Dt of the second biasing member 61D moves upward, the second hitting portion 53D also instantaneously moves upward as shown in FIG. 21, and the second hitting portion 53D stimulates the bones of the hip H of the user U. In other words, when the second interlocking portion 4D moves from the first position P1 to the second position P2, the bone stimulation portion 5D stimulates the bones of the user U. At this time, the energy stored in the energy storage portion 6D is used.

[0190] FIG. 22 is a side view showing the bone impact stimulation device 100D, and shows a state (S450) in which the guided portion 46 is guided in the front-upper direction by the second frame portion 73. After the second striking portion 53D impacts the hip bones H of the user U, the user U releases the force applied to the grip portion 3D, causing the front end Rs of the wire R to move downward due to the weight of the weight W. As the front end Rs of the wire R moves downward, the second interlocking portion 4D moves upward, and the guided portion 46 is guided forward and upward by the second frame portion 73 (third position P3).

[0191] After passing through the third position P3, the second interlocking part 4D returns to the initial position P0 as the guided part 46 is guided upward by the third frame part 74 of the rail part 7. At this time, the bone impact stimulation device 100D returns to the initial state (S410).

[0192] The user U's exercise is an exercise that repeats at least a first step, a second step, and a third step. The first step is a step in which the user U applies force to the bone impact stimulation device 100D. For example, the first step is a step in which the user U applies force to the grip portion 3D, and the user U moves the grip portion 3D downward. The second step is a step in which the user U applies more force to the bone impact stimulation device 100D than in the first step. For example, the second step is a step in which the user U applies more force to the grip portion 3D than in the first step, and the user U moves the grip portion 3D further downward than in the first step. The third step is a step in which the user U releases the force that the user U was applying to the bone impact stimulation device 100D. For example, the third step is a step in which the user U releases the force that the user U was applying to the grip portion 3D, and the user U releases his / her hand from the grip portion 3D.

[0193] In the first step, the energy storage unit 6D stores energy. In the first step, for example, the second restriction portion 45D and the bone stimulation unit rail (engagement portion) 55 engage with each other, the upward movement of the second hitting portion 53D is restricted, and energy that moves the second hitting portion 53D upward is stored in the second biasing member 61D.

[0194] In the second step, the bone stimulation unit 5D uses the energy stored in the energy storage unit 6D to stimulate the bones of the user U. In the second step, for example, the second interlocking unit 4D moves from the first position P1 to the second position P2, the restriction on the upward movement of the second hitting unit 53D is released, and the second hitting unit 53D hits the bones of the user U.

[0195] In the third step, the bone impact stimulation device 100D returns to the initial state (S410). In the third step, for example, the second interlocking part 4D returns to the initial position P0 while avoiding interference with the bone stimulation part rail (engagement part) 55.

[0196] According to the bone impact stimulation device 100D of this embodiment, since it has a grip part 3D, the bone impact stimulation device 100 can be used as a back muscle training device. Therefore, the energy generated by back muscle training is stored in the energy storage part 6D.

[0197] According to the bone impact stimulation device 100D of this embodiment, since the second interlocking section 4D is provided, energy generated by the exercise of the user U can be stored in the energy storage section 6D. According to the bone impact stimulation device 100D of this embodiment, since it has the second impact part 53D, it is possible to stimulate the bones of the user.

[0198] According to the bone impact stimulation device 100D of this embodiment, since the second biasing member 61D is provided, energy for moving the bone stimulation section 5D toward the seat surface 28 can be stored.

[0199] According to the bone impact stimulation device 100D of this embodiment, since it has a second regulating part 45D, the second regulating part 45D engages with the bone stimulation part rail (engagement part) 55, thereby regulating the movement of the second striking part 53D and storing the energy that moves the bone stimulation part 5D toward the seat surface 28 in the energy storage part 6D.

[0200] According to the bone impact stimulation device 100D of this embodiment, the second biasing member 61D is a spring, so that energy that moves the bone stimulation portion 5D toward the seat surface 28 can be stored, and the second striking portion 53D can be biased toward the bone of the user U.

[0201] According to the bone impact stimulation device 100D of this embodiment, the second impact section 53D applies a stimulus to the bones of the user U's hip H, so that the bone cells of the user U's hip H can be activated.

[0202] According to the bone impact stimulation device 100D of this embodiment, the rail portion 7 has the first frame portion 72, so the second interlocking portion 4D is guided from the initial position P0 to the first position P1 via the guided portion 46. By guiding the second interlocking portion 4D to the first position P1, the second restricting portion 45D engages with the bone stimulation portion rail (engaging portion) 55, and energy can be stored in the energy storage portion 6D.

[0203] According to the bone impact stimulation device 100D of this embodiment, since it has the rail portion 7, the second interlocking portion 4D moves from the first position P1 to the second position P2 via the guided portion 46. By moving the second interlocking portion 4D by the rail portion 7, the engagement between the second restricting portion 45D and the bone stimulation portion rail (engaging portion) 55 is released, and the restriction on the upward movement of the second hitting portion 53D is released.

[0204] According to the bone impact stimulation device 100D of this embodiment, the rail portion 7 has the second frame portion 73, so the second interlocking portion 4D is guided from the second position P2 to the third position P3 via the guided portion 46. By guiding the second interlocking portion 4D to the third position P3, when the second interlocking portion 4D returns from the second position P2 to the initial position P0, the second interlocking portion 4D can return without interfering with the bone stimulation portion rail (engagement portion) 55.

[0205] According to the bone impact stimulation device 100D of this embodiment, the rail portion 7 has the third frame portion 74, so the second interlocking portion 4D is guided from the third position P3 to the initial position P0 via the guided portion 46. By guiding the second interlocking portion 4D to the initial position P0, the bones of the user U can be repeatedly stimulated.

[0206] According to the bone impact stimulation device 100D of this embodiment, the second interlocking unit 4D is guided by the rail unit 7 from the initial position P0 via the first position P1 to the second position P2, and then from the second position P2 via the third position P3 to the initial position P0. By guiding the second interlocking unit 4D to the second position P2 and then returning it to the initial position P0, the rail unit 7 restricts the upward movement of the bone stimulation unit 5D while storing energy in the energy storage unit 6D, and then releasing the restriction on the movement of the bone stimulation unit 5D to stimulate the user U's bones, and the bone impact stimulation device 100D is returned to the initial state (S410). This series of operations is repeated. Because the rail unit 7 returns the bone impact stimulation device 100D to the initial state (S410), the user U can repeatedly stimulate the user U's bones simply by continuing the stepping exercise.

[0207] Although several embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These embodiments can be implemented in various other forms, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. These embodiments and their modifications are included within the scope and spirit of the invention, as well as within the scope of the invention described in the claims and their equivalents. [Explanation of symbols]

[0208] 100, 100B, 100C, 100D...bone impact stimulation device, 1,1D...base portion, 2,2C,2D...main body portion, 3,3B,3C...step portion, 3D...grip portion, 4,4C...first interlocking portion, 4D...second interlocking portion, 5,5B,5C,5D...bone stimulation portion, 6,6C,6D...energy storage portion, 7,7C...rail portion, 11...front base portion, 12...rear base portion, 21...front main body arm portion, 22...rear main body arm portion, 23...step mounting portion, 24...damper mounting portion, 24D...lever mounting portion, 25...bone stimulation portion mounting portion, 6...Biasing member attachment part, 27a, 27am, 27an...First column part, 27b, 27bl, 27bm, 27bn...Second column part, 27c, 27cm, 27cn...Third column part, 27d...Ceiling part, 27e...Horizontal plate part, 27f...Arm part, 28...Seat surface, 29a...First column part Pulley, 29b...Second pulley, 31,31B,31C...Step main body, 31D...Arm, 32,32B...Supporting part, 32D...Gripping part, 32Da...Right gripping part, 32Db...Left gripping part, 33,33C...First rotating shaft part (rotating shaft part), 34,34C...Connecting part , 35...through hole, 36, 41...damper, 41D...lever, 42, 42C, 42D...arm portion, 43, 43C...second rotating shaft portion, 44...third rotating shaft portion, 45...first restricting portion, 45D...second restricting portion, 46...guided portion, 51, 51C...first arm portion, 52...second arm portion, 53...first striking portion, 53D...second striking portion, 54, 54C...fourth rotating shaft portion, 55...bone stimulation portion rail (engagement portion), 56...sensor portion, 61...first biasing member, 61D...second biasing member, 62...main body mounting portion, 63...second arm mounting portion, 6 4...first arm mounting portion, 71...rail main body portion, 72, 72C...first frame portion, 73, 73C...second frame portion, 74, 74C...third frame portion, 81...first link, 82...second link, 83...first crank, 84...second crank, 85...first turning pair, 86...second turning pair, 87...third turning pair, 88...fourth turning pair, R...wire, W...weight, U...user, L...foot, La...sole of foot, H...waist, P0...initial position, P1...first position, P2...second position, P3...third position, X...left-right direction, Y...front-back direction, Z...up-down direction

Claims

1. an energy storage unit that stores energy generated by the user's exercise; a bone stimulation unit that stimulates the bones of the user using the energy stored in the energy storage unit; Equipped with Bone impact stimulator.

2. The exercise of the user is an exercise that repeats at least a first step and a second step, In the first step, the energy storage unit stores the energy, In the second step, the bone stimulation unit stimulates the bone of the user using the energy stored in the energy storage unit.

2. The bone impact stimulation device according to claim 1.

3. a step portion having a support portion on which the user's feet are placed and which supports the feet, and a rotation shaft portion, and which is rotatable around the rotation shaft portion when the user applies weight; a first interlocking portion having a first restricting portion engageable with the bone stimulation portion and interlocking with the step portion when the step portion rotates; Equipped with the bone stimulation unit has a first striking unit that strikes the bone of the user and an engaging unit that can engage with the first restricting unit, the energy storage portion has a first biasing member that biases the first striking portion toward the step portion; the first interlocking portion is movable in conjunction with the rotation of the step portion between a first position where the first regulating portion and the engaging portion are engaged with each other and a second position where the engagement between the first regulating portion and the engaging portion is released, When the first interlocking portion is in the first position, movement of the first striking portion toward the step portion is restricted, and energy that moves the first striking portion toward the step portion is stored in the first biasing member, When the first interlocking portion moves from the first position to the second position, the restriction on the movement of the first striking portion toward the step portion is released.

2. The bone impact stimulation device according to claim 1.

4. The first interlocking portion rotates together with the rotation of the step portion. an initial position in which the device is positioned when no force is applied from the user; and a third position to which the first restricting portion is disposed when the first restricting portion returns to the initial position from the second position, while avoiding interference between the first restricting portion and the engaging portion.

4. The bone impact stimulator according to claim 3.

5. The first biasing member is a spring.

5. The bone impact stimulation device according to claim 3 or 4.

6. The first impact portion stimulates the bones in the sole of the user's foot.

5. The bone impact stimulation device according to claim 3 or 4.

7. The support portion is provided in a direction to support the foot of the user from below.

5. The bone impact stimulation device according to claim 3 or 4.

8. The support portion is provided in a direction to support the foot of the user from the front.

5. The bone impact stimulation device according to claim 3 or 4.

9. a grip portion that can be held by the user and moved up and down; a second interlocking portion having a second restricting portion engageable with the bone stimulation portion and interlocking with the grip portion when the grip portion moves downward; Equipped with the bone stimulation unit has a second impact unit that stimulates the bone of the user and an engagement unit that can engage with the second restriction unit, the energy storage unit has a second biasing member that biases the second striking unit upward; the second interlocking portion is movable in conjunction with movement of the grip portion between a first position where the second restricting portion and the engaging portion are engaged with each other and a second position where the engagement between the second restricting portion and the engaging portion is released, When the second interlocking portion is in the first position, the upward movement of the second striking portion is restricted, and energy that moves the second striking portion in the upward direction is stored in the second biasing member, When the second interlocking portion moves from the first position to the second position, the restriction on the upward movement of the second interlocking portion is released.

2. The bone impact stimulation device according to claim 1.

10. The second interlocking portion moves with the movement of the grip portion. an initial position in which the device is positioned when no force is applied from the user; and a third position to which the second restricting portion is disposed when the second restricting portion returns to the initial position while avoiding interference between the second restricting portion and the engaging portion.

10. The bone impact stimulator according to claim 9.

11. the second biasing member is a spring; 11. The bone impact stimulation device according to claim 9 or 10.

12. The second impact portion applies a stimulus to the user's hip bones.

11. The bone impact stimulation device according to claim 9 or 10.

13. A bone impact stimulation method for providing stimulation to a user's bones, comprising: an energy storage step of storing energy generated by the user's exercise; a bone stimulating step of stimulating the bone of the user using the energy stored in the energy storing step; Equipped with Bone impact stimulation method.

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