Stretching exercise machine

Abstract

This invention provides a backpack-type stretching exercise machine that can provide a stretching effect to the user's back. [Solution] The stretching exercise machine 10 comprises a main body 11 having a pressing mechanism 30 that presses against the user U's body, a pair of shoulder straps 12 extending from the main body 11 and placed over the user U's left and right shoulders S, and a pair of fastening parts 13 that fasten the pair of shoulder straps 12 to the user U's left and right shoulders S, respectively. The stretching exercise machine 10 is used by attaching the main body 11 to the user U's back B, and when the pair of shoulder straps 12 are fastened to the user U's left and right shoulders S by the pair of fastening parts 13, the main body 11 is attached from the user U's left and right shoulders S to the user U's back B, and the pressing mechanism 30 is positioned to press against the area to be treated X, which includes the region between the left and right shoulder blades on the user U's back B.

Description

Technical Field

[0001] The present invention relates to the technology of stretching exercise machines.

Background Art

[0002] Patent Document 1 discloses a conventional stretching exercise machine capable of stretching the back of a user. The stretching exercise machine (exercise equipment) disclosed in Patent Document 1 includes a device body having a frame structure that can be installed on the floor surface, a chair provided on the device body, a swing arm, a load applying means, a back fitting arm, and the like. This conventional stretching exercise machine can obtain the effect of stretching and relaxing the back muscles (stretching effect). If the back muscles can be stretched, it is expected that not only the muscles can be relaxed, but also the posture of the user can be corrected. However, the conventional stretching exercise machine has a large-scale device configuration and requires securing an installation space. This conventional stretching exercise machine can only be used at the installation location and cannot be easily used at home or the like.

[0003] On the other hand, Patent Document 2 discloses a backpack-type massager capable of easily massaging the back of a user regardless of the location. The massager disclosed in Patent Document 2 includes a treatment unit that covers the back of the user, which is the affected part, and massages the back. In the massager, the treatment unit has a striking force generating means, and by locally applying a strike by the striking force generating means, it is possible to massage the part where the strike is applied (the shoulders, neck, waist (hips), etc. of the user).

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Patent Document 2

Summary of the Invention

[0005] The aforementioned massage machine can provide the effect of kneading and loosening the muscles of the back. However, the aforementioned massage machine cannot provide the effect of stretching and loosening the muscles of the back. This disclosure aims to provide a backpack-type stretching exercise machine that can be easily used anywhere and provides a stretching effect to the user's back. [Means for solving the problem]

[0006] (1) The stretching exercise machine of the present disclosure comprises a main body having a pressing mechanism for pressing against the user's body, a pair of shoulder straps extending from the main body and placed over the user's left and right shoulders, and a pair of fastening parts for tightening the pair of shoulder straps around the user's left and right shoulders, respectively, and is used by attaching the main body to the user's back, wherein when the pair of shoulder straps are fastened around the user's left and right shoulders by the pair of fastening parts, the main body is attached from the user's left and right shoulders to their back, and the pressing mechanism is positioned to press against the area between the left and right shoulder blades on the user's back.

[0007] The stretching exercise machine of this disclosure can be fixed to the user's shoulders, and the pressing mechanism can press against the user's back. In this case, the same effect as pulling the user's left and right shoulders toward the back and toward the inside can be obtained. Therefore, the stretching exercise machine of this disclosure can stretch the muscles of the back and obtain a stretching effect.

[0008] (2) In the stretching exercise machine of the present disclosure, the pressing mechanism preferably includes an airbag that can be inflated and deflated by the inflow and outflow of air. The stretching exercise machine with the above configuration can apply pressure to the user's back by inflating an airbag with air. With this configuration, the structure of the pressure mechanism can be simplified, and the stretching exercise machine can be made lightweight and compact.

[0009] (3) The stretching exercise machine according to (1) or (2) of the present disclosure further comprises a drive mechanism for driving the pressing mechanism, wherein the drive mechanism preferably includes a pump for bringing air into and out of the airbag, and a piping member for connecting the airbag and the pump. The stretching exercise machine with the above configuration allows for a simple drive mechanism to operate the pressing mechanism. This configuration makes the stretching exercise machine lightweight and compact.

[0010] (4) In the stretching exercise machine of the present disclosure, the drive mechanism further includes a battery for driving the pump, and the shoulder portion preferably has a housing capable of housing at least one of the pump and the battery. The stretching exercise machine with the above configuration can house the pump and battery in the shoulder strap. With a stretching exercise machine of this configuration, the user can move freely while wearing the machine.

[0011] (5) In a stretching exercise machine according to any of the embodiments of (2) to (4) of the present disclosure, the airbag preferably includes at least one of a first airbag that presses against a first treatment area including the lower region of the treatment area, and a second airbag that presses against a second treatment area including the region of the treatment area above the first treatment area. The stretching exercise machine with the above configuration allows the user to select which part of the body to be pressed by the airbags: either the upper first treatment area or the lower second treatment area, or both the first and second treatment areas. With this configuration, the position of the back pressed by the airbags can be selected according to the user's preference.

[0012] (6) In a stretching exercise machine according to any of the embodiments of (2) to (4) of the present disclosure, the airbag preferably includes at least one of a third airbag that presses against a third treatment area including a region to the left of the center in the left-right direction of the treatment area, and a fourth airbag that presses against a fourth treatment area including a region to the right of the center in the left-right direction of the treatment area. The stretching exercise machine with the above configuration allows the user to select which part of the back to be pressed by the airbag: either the first treatment area on the left side of the back, the second treatment area on the right side of the back, or both the first and second treatment areas. With this configuration, the position of the back pressed by the airbag can be selected according to the user's preference.

[0013] (7) In a stretching exercise machine according to any of the embodiments of (1) to (6) of the present disclosure, the main body comprises a cloth-like member having a first surface facing the user's back when attached to the user's back and a second surface opposite to the first surface, and a plate-shaped core material positioned opposite to the second surface, wherein the airbag is preferably positioned between the cloth-like member and the core material. In the stretching exercise machine with the above configuration, the expansion of the airbag toward the core material can be restricted by the core material. With this configuration, it is possible to prevent the pressing force from the airbag from escaping to sides other than the back, thereby ensuring that the pressing force from the pressing mechanism is reliably applied to the user's back.

[0014] (8) In the stretching exercise machine according to the embodiment of (7) of the present disclosure, the main body portion preferably further comprises a projection that can be installed on the first surface. The stretching exercise machine with the above configuration can apply the compressive force generated by the inflation of the airbag to the user's back locally via the protrusions. This allows the compressive force applied to the user's back to be concentrated and increased locally.

[0015] (9) In the stretching exercise machine according to the aspect (8) of the present disclosure, it is preferable that the main body portion further includes a pocket portion provided on the first surface and capable of accommodating the protrusion portion. The stretching exercise machine with the above configuration can easily provide the protrusion portion on the first surface by accommodating the protrusion portion in the pocket portion. Further, by changing the position of the protrusion portion inside the pocket portion, the pressing position by the protrusion portion can be easily changed.

[0016] (10) In the stretching exercise machine according to the aspect (9) of the present disclosure, it is preferable that the main body portion includes a plurality of the pocket portions. The stretching exercise machine with the above configuration can select the pocket portion that accommodates the protrusion portion from among the plurality of pocket portions. Thereby, the position of the back portion pressed by the protrusion portion can be easily changed according to the preference of the user.

Brief Description of the Drawings

[0017] [Figure 1] It is a front view showing the stretching exercise machine (first embodiment) of the present disclosure. [Figure 2] It is a rear view showing the stretching exercise machine (first embodiment) of the present disclosure. [Figure 3] It is a left side view showing the stretching exercise machine (first embodiment) of the present disclosure. [Figure 4] It is a perspective view showing the state of wearing the stretching exercise machine on the user. [Figure 5] It is an explanatory view of the treatment portion of the user by the stretching exercise machine. [Figure 6] It is a front view showing the stretching exercise machine with the shoulder hanging portion expanded upward. [Figure 7] It is a partial cross-sectional view of the main body portion. [Figure 8] It is a partial front view showing the arrangement of the protrusion portion with respect to the main body portion. [Figure 9] It is a partial front view showing the arrangement of the pocket portion and the protrusion portion with respect to the main body portion. [Figure 10]This is a partial cross-sectional view showing the tightening state of the main body and shoulder strap by the tightening mechanism. [Figure 11] This is a partial cross-sectional view showing the relaxed state of the main body and shoulder strap due to the tightening mechanism. [Figure 12] This is a partial front view showing the stretching exercise machine (second embodiment) of the present disclosure. [Figure 13] This is an explanatory diagram of the first and second treatment areas of the user using the second stretching exercise machine. [Figure 14] This is an explanatory diagram illustrating an example of the arrangement of protrusions and pockets in the second stretching exercise machine. [Figure 15] This is a partial front view showing the stretching exercise machine (third embodiment) of the present disclosure. [Figure 16] This is an explanatory diagram of the third and fourth treatment areas of the user using the third stretching exercise machine. [Figure 17] This is an explanatory diagram illustrating an example of the arrangement of protrusions and pockets in the third stretching exercise machine. [Modes for carrying out the invention]

[0018] Hereinafter, embodiments of the stretching exercise machine of this disclosure will be described with reference to the drawings. Note that the embodiments described below are illustrative examples of the stretching exercise machine of this disclosure and are not limited to the configurations illustrated.

[0019] (Overview of stretching exercise machine) Figure 1 is a front view showing the stretching exercise machine (first embodiment) of the present disclosure. Figure 2 is a rear view showing the stretching exercise machine (first embodiment) of the present disclosure. Figure 3 is a left side view showing the stretching exercise machine (first embodiment) of the present disclosure. Figure 4 is a perspective view showing the state in which the stretching exercise machine of the present disclosure is worn on the user. Figure 5 is an explanatory diagram of the part of the user to be treated by the stretching exercise machine. Figures 1 to 4 show a stretching exercise machine 10, which is one embodiment of the stretching exercise machine of the present disclosure. The stretching exercise machine 10 shown in Figures 1 to 4 is the first embodiment of the stretching exercise machine 10 of the present disclosure. In the following description, the stretching exercise machine 10 according to the first embodiment will also be referred to as the first stretching exercise machine 10A. In the following description, when simply referred to as "stretching exercise machine 10", it refers to a configuration common to the first stretching exercise machine 10A and the stretching exercise machine 10 according to other embodiments (the second stretching exercise machine 10B and the third stretching exercise machine 10C, which will be described later).

[0020] As shown in Figure 4, the stretching exercise machine 10 is a backpack-type device used by the user U, worn on the shoulders and back. The stretching exercise machine 10 is used to stretch the user U's back B (see Figure 5). The stretching exercise machine 10 can achieve the effect of stretching the back B by pressing on the treatment area X (see Figure 5) of the user U's back B. Furthermore, by stretching the user U's back B, the stretching exercise machine 10 can achieve the effect of correcting the user U's posture.

[0021] As shown in Figure 5, the area to be treated X is the region between the left and right scapulae K on the user U's back B. The area to be treated X may also include the location of the user U's scapulae K. In the following explanation, the left shoulder S is also referred to as left shoulder S1, the right shoulder S as right shoulder S2, the left scapula K as left scapula K1, and the right scapula K as right scapula K2.

[0022] In the following explanation, the state in which the stretching exercise machine 10 is properly attached to user U in the basic posture is used as the basis. The front-to-back direction of user U in the basic posture and the direction parallel thereto are defined as the front-to-back direction of the stretching exercise machine 10, the left-to-right direction and the direction parallel thereto are defined as the left-to-right direction of the stretching exercise machine 10, and the up-and-down direction and the direction parallel thereto are defined as the up-and-down direction of the stretching exercise machine 10. In this explanation, the "basic posture" of user U refers to a posture in which user U's spine extends vertically and the head is positioned at the top of the spine. This includes the posture of user U standing upright on a horizontal floor, and the posture of user U sitting on a chair or the like with a horizontal seat.

[0023] (Overall configuration of the stretching exercise machine) As shown in Figures 1 to 4, the stretching exercise machine 10 comprises a main body 11, a shoulder strap 12, and a tightening part 13.

[0024] (Main body) Figure 6 is a front view showing the stretching exercise machine with the shoulder straps extended upwards. Figure 7 is a partial cross-sectional view of the main body. As shown in Figure 4, the main body 11 is the part that is attached to the user U's back B (see Figure 5). As shown in Figures 1 to 4, 6 and 7, the main body 11 is composed of an outer cover 15 and a core material 16 (see Figure 7).

[0025] As shown in Figures 6 and 7, the outer cover 15 is composed of a first fabric member 15a positioned on the front side and a second fabric member 15b positioned on the rear side. The outer cover 15 is constructed in a bag-like shape with an internal space by sewing together the outer edges of the first fabric member 15a and the second fabric member 15b. The outer cover 15 houses the core material 16 in the internal space. The outer cover 15 (first fabric member 15a and second fabric member 15b) in this embodiment is made of a flexible fabric such as artificial leather or mesh fabric. The main body 11 may also include other cushioning materials as appropriate.

[0026] When the main body 11 is attached to the user U's back B (see Figure 5), the first fabric member 15a comes into contact with the back B. The first fabric member 15a has a first surface 15c that comes into contact with the user U's back B, and a second surface 15d formed on the opposite side of the first surface 15c. The second surface 15d faces the second fabric member 15b.

[0027] The core material 16 is a plate-shaped member made of an elastic material. In this embodiment, the core material 16 is made of resin. The core material 16 is housed in the space inside the outer cover 15. The front surface of the core material 16 faces the second surface 15d, and the rear surface faces the second fabric-like member 15b.

[0028] As described above, the main body 11 has a three-layer structure, comprising a first fabric-like member 15a, a core material 16, and a second fabric-like member 15b from the front. The main body 11 houses the pressing mechanism 30, which will be described later, between the first fabric-like member 15a and the core material 16.

[0029] (Pressing mechanism) As shown in Figures 6 and 7, the main body 11 further comprises a pressing mechanism 30. The pressing mechanism 30 is a mechanism that presses the treatment area X (see Figure 5) of the user U. The pressing mechanism 30 is composed of an airbag 40. The airbag 40 inflates by sealing air inside and deflates by releasing the air sealed inside. The airbag 40 in this embodiment is a rubber bag-shaped member. The pressing mechanism 30 can generate a pressing force to press the treatment area X by inflating the airbag 40. In the following description, the airbag 40 constituting the first stretching exercise machine 10A will also be referred to as the first airbag 41.

[0030] As shown in Figure 7, in the stretching exercise machine 10, the airbag 40 is positioned in the space between the first fabric member 15a and the core material 16 inside the outer cover 15. In this configuration, the airbag 40's expansion to the rear is restricted by the core material 16. In other words, the airbag 40 expands in directions other than the rear (especially towards the front). Therefore, by providing the core material 16 on the rear side of the airbag 40, the stretching exercise machine 10 can suppress the transmission loss of the pressing force generated by the expansion of the airbag 40. As a result, in the stretching exercise machine 10, the pressing mechanism 30 can reliably press the area to be treated X by the expansion of the airbag 40.

[0031] Furthermore, the stretching exercise machine 10 of this disclosure can release pressure on the area to be treated X by deflating the airbag 40 by releasing the air sealed inside. The stretching exercise machine 10 can provide a stretching effect to the user U's back B (around the area to be treated X) by inflating the airbag 40, or by repeatedly inflating and deflating the airbag 40 alternately.

[0032] (Shoulder strap) As shown in Figure 4, the shoulder strap portion 12 is the part that is attached to the user U's shoulder S (see Figure 5). As shown in Figures 1 to 4 and Figure 6, the shoulder strap portion 12 is a band-shaped part formed integrally with the main body portion 11 and extends from the left and right ends of the upper part of the main body portion 11. The shoulder strap portion 12 includes a left shoulder strap portion 12a that is attached to the user U's left shoulder S1 (see Figure 5) and a right shoulder strap portion 12b that is attached to the user U's right shoulder S2 (see Figure 5).

[0033] The left shoulder strap 12a extends from the upper left end of the main body 11, and the right shoulder strap 12b extends from the upper right end of the main body 11. Therefore, the stretching exercise machine 10 is configured in a roughly U-shape by the main body 11 and the left and right shoulder straps 12a and 12b. The left and right shoulder straps 12a and 12b are arranged side by side with a gap wider than the neck of the user U in the left-right direction.

[0034] The shoulder strap portion 12 is composed of an outer cover 17 and a cushioning material (not shown). The outer cover 17 is composed of a first fabric member 17a and a second fabric member 17b. The first fabric member 17a and the second fabric member 17b are flexible fabrics such as artificial leather or mesh fabric. The outer cover 17 is constructed in a bag-like shape with an internal space by sewing the outer edges of the first fabric member 17a and the second fabric member 17b together with the cushioning material. The shoulder strap portion 12 with this configuration has flexibility and shape retention. The first fabric member 17a is connected in series with the first fabric member 15a of the outer cover 15, and the second fabric member 17b is connected in series with the second fabric member 15b of the outer cover 15. The internal space of the outer cover 17 is used as a housing portion 18 for housing the drive mechanism 50, which will be described later. The shoulder strap portion 12 further has a retaining portion 19 for holding the buckle 22, which will be described later.

[0035] Although not described or illustrated in this embodiment, the stretching exercise machine 10 of this disclosure may further include a belt member connecting the left and right shoulder straps 12a and 12b at a position in front of the user U's chest. When the belt member is used, the left and right shoulder straps 12a and 12b can be firmly attached to the user U's body. In this case, the pressing force generated by the pressing mechanism 30 can be applied to the area to be treated X more reliably.

[0036] The stretching exercise machine 10 is attached to the user U by placing the left and right shoulder straps 12a and 12b on the user U's shoulders S1 and S2, respectively. The stretching exercise machine 10 can then be attached by placing the shoulder straps 12 on the user U's shoulders S, thereby positioning the main body 11 on the user U's back B, and thus positioning the pressing mechanism 30 (airbag 40) in a position where it can press on the area to be treated X.

[0037] (Tightening part) As shown in Figure 4, the tightening section 13 is the part that tightens the shoulder strap section 12 and the main body section 11 against the user U. The stretching exercise machine 10 fixes the main body section 11 to the user U's back B and the shoulder strap section 12 to the user U's shoulder S by tightening the tightening section 13. The tightening section 13 includes a left tightening section 13a that connects the left shoulder strap section 12a and the main body section 11, and a right tightening section 13b that connects the right shoulder strap section 12b and the main body section 11.

[0038] As shown in Figures 1 to 4, each fastening section 13a and 13b is equipped with a fastening belt 21, a buckle 22, and a handle 23, respectively.

[0039] The tightening belt 21 is a flexible, strip-shaped body made of synthetic fibers (e.g., nylon). In the left tightening section 13a, the tightening belt 21 extends from the lower left end of the main body 11 to the left shoulder strap 12a. In the right tightening section 13b, the tightening belt 21 extends from the lower right end of the main body 11 to the right shoulder strap 12b. The tightening belt 21 has a handle portion 23 at the end opposite to the side that is fixed to the main body 11.

[0040] In the basic posture, with the stretching exercise machine 10 attached to the user U (see Figure 4), the tightening belt 21 extends forward from both the left and right ends of the lower part of the main body 11. The tightening belt 21 extending forward passes through the slit 12c formed in the shoulder strap 12 and is inserted into the buckle 22 provided on the front side of the shoulder strap 12. Then, at the buckle 22, the direction of extension of the tightening belt 21 is changed from forward to backward, and it passes through the slit 12c again and extends downward at the rear of the shoulder strap 12.

[0041] When the handle portion 23 at the tip of the tightening belt 21 is pulled downward, the lower end of the main body portion 11 can be pulled towards the shoulder strap portion 12. As a result, the main body portion 11 is brought into close contact with the back B of the user U. In this way, the main body portion 11 is fixed to the back of the user U. Although not described or illustrated in this embodiment, the part of the tightening belt 21 that comes into contact with the user U may be provided with cushioning material. By interposing the cushioning material between the user U and the tightening belt 21, the closeness of the tightening belt 21 and the comfort when wearing the stretching exercise machine 10 can be improved.

[0042] The buckle 22 is connected to and held by a loop-shaped retaining part 19 provided in the middle of the shoulder strap portion 12. When the buckle 22 is positioned with its tip (tip portion 27, which will be described later) facing downwards, it can prevent the tightening belt 21 from moving in the extending direction, and when the tip is pulled forward, it can allow the tightening belt 21 to move in the extending direction. The function of the buckle 22 will be described in detail later.

[0043] (Drive mechanism) As shown in Figures 1, 3, and 6, the stretching exercise machine 10 further comprises a drive mechanism 50. The drive mechanism 50 is a mechanism that drives the pressing mechanism 30. The drive mechanism 50 comprises a pump 51, a battery 52, and an air tube (piping member) 53. In the stretching exercise machine 10 of this disclosure, the pump 51 is housed in a housing 18 of the left shoulder strap 12a, and the battery 52 is housed in a housing 18 of the right shoulder strap 12b. The air tube 53 is housed inside the left shoulder strap 12a and the main body 11 and connects the airbag 40 and the pump 51. The pump 51 sends air into the airbag 40 or exhausts air from the airbag 40 via the air tube 53. The stretching exercise machine 10 comprises wiring 54 that electrically connects the pump 51 and the battery 52. The wiring 54 is routed inside the right shoulder strap 12b, the main body 11, and the left shoulder strap 12a.

[0044] As shown in Figure 1, the stretching exercise machine 10 is equipped with an operating unit 31 on the left shoulder strap 12a. The operating unit 31 is a switch that can turn the pump 51 ON and OFF. The user U can select whether to turn the drive mechanism 50 (pump 51) ON or OFF by operating the operating unit 31. Specifically, when the user U operates the operating unit 31, the pump 51 is activated by power supplied from the battery 52, and air is supplied from the pump 51 to the airbag 40. This causes the airbag 40 to inflate. Alternatively, when the user U operates the operating unit 31, the pump 51 is stopped and the air inside the airbag 40 is exhausted to the outside. This causes the airbag 40 to deflate.

[0045] In this embodiment of the stretching exercise machine 10, the pump 51 is housed in the housing 18 of the left shoulder strap 12a and the battery 52 is housed in the housing 18 of the right shoulder strap 12b. However, the arrangement of the pump 51 and battery 52 in the stretching exercise machine 10 of this disclosure is not limited to this, and the left and right sides may be reversed. Furthermore, the stretching exercise machine 10 of this disclosure may be configured such that both the pump 51 and the battery 52 are housed in either the left or right housing 18. Also, the stretching exercise machine 10 of this disclosure may be configured such that the pump 51 and the battery 52 are housed in the main body 11. Moreover, in the stretching exercise machine 10 of this disclosure, a part of the drive mechanism 50 may be located outside the shoulder strap 12.

[0046] The stretching exercise machine 10 can apply pressure to the treatment area X (see Figure 5) of the user U by having the drive mechanism 50 drive the pressure mechanism 30 (airbag 40). By applying pressure to the treatment area X with the pressure mechanism 30 (airbag 40), the stretching exercise machine 10 can achieve the same effect as pulling the user U's left and right shoulders S1 and S2 toward the back B and inward, respectively. Therefore, the stretching exercise machine 10 can stretch the muscles of the back B around the treatment area X. This provides a stretching effect that arches the chest and also corrects the user U's posture.

[0047] (protrusion) Figure 8 is a partial front view showing the arrangement of the protrusions on the main body. As shown in Figure 8, the stretching exercise machine 10 of this disclosure may be configured to include the protrusions 60 on the main body 11.

[0048] The projection 60 is a convex portion provided on the first surface 15c of the main body 11. The material constituting the projection 60 is, for example, natural stone, hard resin, etc. The shape of the material constituting the projection 60 may be, for example, a cone shape, a truncated cone shape, a square pyramidal shape, a triangular pyramidal shape, etc. In this embodiment, the projection 60 is made of a Go stone-shaped material.

[0049] The projection 60 is provided in the area of ​​the first surface 15c that overlaps with the area where the airbag 40 is positioned. The projection 60 may be detachably attached to the first surface 15c, for example, by hook and loop fasteners. With this configuration, the stretching exercise machine 10 can press the area to be treated X via the projection 60 when the airbag 40 is inflated. In this case, the pressing force generated by the pressing mechanism 30 can be concentrated at the contact point between the back B and the projection 60 to press the area to be treated X. This increases the pressing force applied to the area to be treated X. In this embodiment, two projections 60 are provided, but only one projection 60 may be provided, or three or more may be provided. In the stretching exercise machine 10 of this disclosure, the projection 60 may be omitted.

[0050] (Pocket section) Figure 9 is a partial front view showing the arrangement of the pocket and projections relative to the main body. As shown in Figure 9, in a stretching exercise machine 10 having projections 60, the main body 11 may also include a pocket 70. The pocket 70 is a bag-shaped (pocket) portion capable of accommodating the projections 60 and is made of a fabric-like material similar to the outer cover 15. The pocket 70 is provided in an area of ​​the first surface 15c that overlaps with the area where the airbag 40 is located.

[0051] If a pocket portion 70 is provided, the projection portion 60 is housed within the pocket portion 70. This allows the projection portion 60 to be positioned on the first surface 15c. In a stretching exercise machine 10 with such a configuration, the arrangement of the projection portion 60 can be freely changed within the pocket portion 70. In this case, changing the arrangement of the projection portion 60 is easier. The stretching exercise machine 10 may house multiple projection portions 60 within the pocket portion 70. In addition, the pocket portion 70 may be omitted in the stretching exercise machine 10 of this disclosure.

[0052] (Regarding the tightening and loosening states of the main body by the fastening part) Figure 10 is a partial cross-sectional view showing the tightening state of the main body and shoulder strap by the fastening part. Figure 11 is a partial cross-sectional view showing the loosening state of the main body and shoulder strap by the fastening part. As shown in Figures 10 and 11, the buckle 22 has a support end 24, a middle frame 25, a lower frame 26, and a tip 27. The buckle 22 further has a first belt insertion hole 28 formed between the middle frame 25 and the lower frame 26, and a second belt insertion hole 29 formed between the lower frame 26 and the tip 27.

[0053] The support end 24 is a roughly rectangular prism-shaped frame and is positioned horizontally at the upper end of the buckle 22. The support end 24 constitutes the upper edge of the buckle 22. The support end 24 is inserted through a loop-shaped retaining part 19 provided on the shoulder strap 12 and is rotatably held by the retaining part 19. Therefore, the buckle 22 is rotatably connected to the shoulder strap 12 with the support end 24 as the pivot point.

[0054] The middle frame portion 25 is a substantially flat frame and is positioned horizontally in the middle of the buckle 22 in the vertical direction. The middle frame portion 25 has a downward slope towards the front of the buckle 22 and constitutes the upper outer peripheral edge of the first belt insertion hole 28.

[0055] The lower frame portion 26 is a roughly rectangular prism-shaped frame and is positioned horizontally below the middle frame portion 25. The lower frame portion 26 extends between the left and right side edges of the buckle 22, forming the outer peripheral edge below the first belt insertion hole 28 and the outer peripheral edge above the second belt insertion hole 29.

[0056] The first belt insertion hole 28 is a hole formed between the middle frame portion 25 and the lower frame portion 26. The tightening belt 21, which extends forward from the main body portion 11, is inserted through the first belt insertion hole 28 from the rear to the front. The second belt insertion hole 29 is a hole formed between the lower frame portion 26 and the tip portion 27. The tightening belt 21, which passes through the first belt insertion hole 28 to the front of the buckle 22 and makes a U-turn along the lower frame portion 26, is inserted through the second belt insertion hole 29 from the front to the rear. Both the first belt insertion hole 28 and the second belt insertion hole 29 are through holes with approximately the same width as the tightening belt 21.

[0057] The tightening belt 21 passes through the slit 12c of the shoulder strap portion 12 from the rear side, and then through the first belt insertion hole 28 to the front side of the buckle 22. The tightening belt 21 is then bent in a U-turn shape along the lower frame portion 26. At this time, the direction of extension of the tightening belt 21 along the lower frame portion 26 changes from forward to downward, and then from downward to rear. The tightening belt 21 is then returned to the rear side of the shoulder strap portion 12 by passing through the second belt insertion hole 29 and the slit 12c of the shoulder strap portion 12, and then its direction of extension becomes downward on the rear side of the shoulder strap portion 12.

[0058] In the portion of the tightening belt 21 that passes through the slit 12c of the shoulder strap 12, the upper and lower tightening belts 21 are brought together so that the belt surfaces come into contact with each other, thereby restricting displacement in the extending direction. Furthermore, the tightening belt 21 is wound around the lower frame portion 26 of the buckle 22 in a U-turn shape, and the frictional force between it and the lower frame portion 26 restricts displacement in the extending direction. The stretching exercise machine 10 of this disclosure can restrict the displacement of the tightening belt 21 in the extending direction by a buckle 22 configured in this way.

[0059] When the handle portion 23 provided at the end of the tightening belt 21 is pulled downward, the length L between the endpoint P on the main body portion 11 side of the tightening belt 21 and the contact point Q with the lower frame portion 26 is shortened. As a result, the distance between the main body portion 11 and the shoulder strap portion 12 is shortened, thereby attaching the main body portion 11 and the shoulder strap portion 12 to the user U. At this time, the main body portion 11 is in close contact with the back portion B. In this description, this state in which the main body portion 11 is tightened against the back portion B by the tightening portion 13 is referred to as the tightened state. In this description, the length L between points PQ of the tightening belt 21 in the tightened state is defined as the first length L1.

[0060] In the tightened state (where the main body 11 is tightened against the back portion B by the tightening portion 13), when the lower end of the shoulder strap 12 is lifted upward and forward, the buckle 22 rotates upward and forward with the pivot end 24 as the pivot point. At this time, the portion of the tightening belt 21 that extends downward and rearward from the lower frame portion 26 is lifted as the lower frame portion 26 rotates. This creates a gap between the tightening belt 21 wrapped around the lower frame portion 26 and the lower frame portion 26, thereby releasing the restriction on displacement by the lower frame portion 26 and allowing the tightening belt 21 to be displaced in the extending direction.

[0061] As a result, the length L between the endpoint P on the main body portion 11 side of the tightening belt 21 and the contact point Q with the lower frame portion 26 is extended. At this time, the main body portion 11 is no longer in close contact with the back portion B, and the main body portion 11 and the shoulder strap portion 12 become detachable from the user U. In this description, this state in which the tightening of the main body portion 11 to the back portion B by the tightening portion 13 is loosened is referred to as the relaxed state. In this description, the length L between points P and Q of the tightening belt 21 in the relaxed state is defined as the second length L2. The second length L2 is greater than the first length L1 (L2 > L1).

[0062] The stretching exercise machine 10 of this disclosure allows the user U to easily adjust the length L between points PQ of the tightening belt 21 to a first length L1 by simply operating the handle portion 23. Therefore, the user U can easily attach the stretching exercise machine 10 to their back B. Furthermore, the stretching exercise machine 10 of this disclosure allows the user U to easily adjust the length L between points PQ of the tightening belt 21 to a second length L2 by simply operating the shoulder strap portion 12. Therefore, the user U can easily remove the stretching exercise machine 10 from their back B.

[0063] (Regarding the first stretching exercise machine 10A according to the first embodiment) The first stretching exercise machine 10A shown in Figures 1 to 4 and Figure 6 is equipped with one airbag 40 (first airbag 41).

[0064] The first stretching exercise machine 10A, configured in this way, can press the treatment area X of the user U with the first airbag 41. By pressing the treatment area X with the first airbag 41, the first stretching exercise machine 10A can achieve the same effect as pulling the user U's left and right shoulders S1 and S2 toward the back B and inward, respectively. Therefore, the first stretching exercise machine 10A can stretch the muscles of the back B around the treatment area X, and also has the effect of correcting the user U's posture.

[0065] (Regarding the stretching exercise machine according to the second embodiment) Figure 12 is a partial front view showing the stretching exercise machine (second embodiment) of the present disclosure. Figure 13 is an explanatory diagram of the first and second treatment areas of the user by the second stretching exercise machine. Figure 14 is an explanatory diagram of an example of the arrangement of protrusions and pockets in the second stretching exercise machine. The stretching exercise machine 10 shown in Figure 12 is a second embodiment of the stretching exercise machine 10 of the present disclosure. In the following description, the stretching exercise machine 10 according to the second embodiment will also be referred to as the second stretching exercise machine 10B. The second stretching exercise machine 10B differs from the first stretching exercise machine 10A (see Figure 1) described above in that it is equipped with a plurality of airbags 40, but in other respects, it has the same configuration as the first stretching exercise machine 10A. In this description, the differences in configuration between the second stretching exercise machine 10B and the first stretching exercise machine 10A will be explained, and the explanation of the points that are common in configuration will be omitted.

[0066] As shown in Figure 12, the second stretching exercise machine 10B is equipped with multiple airbags 40. Specifically, the second stretching exercise machine 10B is equipped with two airbags 40. One of the two airbags 40 equipped in the second stretching exercise machine 10B is referred to as the first airbag 41. The first airbag 41 of the second stretching exercise machine 10B is equivalent to the first airbag 41 of the first stretching exercise machine 10A. The other of the two airbags 40 equipped in the second stretching exercise machine 10B is referred to as the second airbag 42. In this embodiment, the case in which two airbags 40 are equipped is illustrated, but the second stretching exercise machine 10B may be configured to be equipped with three or more airbags 40.

[0067] The second stretching exercise machine 10B targets two treatment areas X (see Figure 13). As shown in Figure 13, the second stretching exercise machine 10B targets two treatment areas X: the first treatment area X1 and the second treatment area X2. The first treatment area X1 is the lower region of the treatment area X (see Figure 5). The second treatment area X2 is the lower region of the treatment area X (see Figure 5) and is located above the first treatment area X1. The second stretching exercise machine 10B may target three or more treatment areas.

[0068] In the second stretching exercise machine 10B, the first airbag 41 is configured to press against the first treatment area X1, and the second airbag 42 is configured to press against the second treatment area X2. The second stretching exercise machine 10B presses against the first treatment area X1 and / or the second treatment area X2 of the user U by operating the pressing mechanism 30 with the drive mechanism 50. In the second stretching exercise machine 10B, it is preferable that the drive mechanism 50 further includes a switching valve that can switch the destination of the air supply from the pump 51. In this case, the switching valve and each airbag 41 and 42 are connected by an air tube 53.

[0069] With the second stretching exercise machine 10B configured in this way, it is possible to stretch the muscles of the back B around the first treatment area X1, and also stretch the muscles of the back B around the second treatment area X2. The second stretching exercise machine 10B allows the user U to select the treatment area from either the first treatment area X1 or the second treatment area X2, or both, according to their physique and preferences, thereby obtaining a more precise stretching effect.

[0070] As shown in Figure 14, the second stretching exercise machine 10B may be configured to have multiple pockets 70 on the first surface 15c of the main body 11 for positioning the protrusions 60. Specifically, the second stretching exercise machine 10B has a first pocket 70 (first pocket 71) at a position corresponding to the position of the first airbag 41, and a second pocket 70 (second pocket 72) at a position corresponding to the position of the second airbag 42.

[0071] With the second stretching exercise machine 10B having this configuration, it is possible to select a pocket portion 70 that accommodates the projection portion 60 from among a plurality of pocket portions 70 (first pocket portion 71 and second pocket portion 72). This makes it possible to easily change the position of the back B pressed by the projection portion 60 according to the user U's preference. The second stretching exercise machine 10B may also be configured such that the projection portion 60 is directly attached (without using the pocket portion 70) to the first surface 15c of the main body portion 11 at a position corresponding to the placement area of ​​the first airbag 41 and the second airbag 42.

[0072] (Regarding the stretching exercise machine according to the third embodiment) Figure 15 is a partial front view showing the stretching exercise machine (third embodiment) of the present disclosure. Figure 16 is an explanatory diagram of the third and fourth treatment areas of the user by the third stretching exercise machine. Figure 17 is an explanatory diagram of an example of the arrangement of protrusions and pockets in the third stretching exercise machine. The stretching exercise machine 10 shown in Figure 15 is the third embodiment of the stretching exercise machine 10 of the present disclosure. In the following description, the stretching exercise machine 10 according to the third embodiment will also be referred to as the third stretching exercise machine 10C. The third stretching exercise machine 10C differs from the first stretching exercise machine 10A (see Figure 1) described above in that it is equipped with a plurality of airbags 40, but in other respects, its configuration is the same as the first stretching exercise machine 10A. In addition, the arrangement of the plurality of airbags 40 in the third stretching exercise machine 10C differs from the second stretching exercise machine 10B (see Figure 12) described above. This explanation will describe the differences in the configuration of the third stretching exercise machine 10C compared to the first stretching exercise machine 10A and the second stretching exercise machine 10B, and will omit explanations of the points that are common to these machines.

[0073] As shown in Figure 15, the third stretching exercise machine 10C is equipped with multiple airbags 40. Specifically, the third stretching exercise machine 10C is equipped with two airbags 40. One of the two airbags 40 equipped with the third stretching exercise machine 10C is referred to as the third airbag 43. The other of the two airbags 40 equipped with the third stretching exercise machine 10C is referred to as the fourth airbag 44. In this embodiment, the case in which there are two airbags 40 is illustrated, but the third stretching exercise machine 10C may be configured to be equipped with three or more airbags 40.

[0074] The third stretching exercise machine 10C targets two treatment areas X (see Figure 16). As shown in Figure 16, the third stretching exercise machine 10C targets two treatment areas X: the third treatment area X3 and the fourth treatment area X4. The third treatment area X3 is the area of ​​treatment area X (see Figure 5) to the left of the spine. The fourth treatment area X4 is the area of ​​treatment area X (see Figure 5) to the right of the spine. The third stretching exercise machine 10C may target three or more treatment areas.

[0075] In the third stretching exercise machine 10C, the third airbag 43 is configured to press against the third treatment area X3, and the fourth airbag 44 is configured to press against the fourth treatment area X4. The third stretching exercise machine 10C presses against the third treatment area X3 and / or the fourth treatment area X4 of the user U by operating the pressing mechanism 30 with the drive mechanism 50. In the third stretching exercise machine 10C, it is preferable that the drive mechanism 50 further includes a switching valve that can switch the destination of the air supply from the pump 51. In this case, the switching valve and each airbag 41 and 42 are connected by an air tube 53.

[0076] With the third stretching exercise machine 10C configured in this way, it is possible to stretch the muscles of the back B around the third treatment area X3, and also stretch the muscles of the back B around the fourth treatment area X4. The third stretching exercise machine 10C allows the user U to select the treatment area from either or both of the third treatment area X3 and the fourth treatment area X4 according to their physique and preferences, thereby obtaining a more precise stretching effect.

[0077] As shown in Figure 17, the third stretching exercise machine 10C may be configured to have multiple pockets 70 on the first surface 15c of the main body 11 for positioning the protrusions 60. Specifically, the third stretching exercise machine 10C has multiple pockets 70 (third pocket 73 and fourth pocket 74) at positions corresponding to the positioning area of ​​the third airbag 43, and multiple pockets 70 (fifth pocket 75 and sixth pocket 76) at positions corresponding to the positioning area of ​​the fourth airbag 44.

[0078] With the third stretching exercise machine 10C having this configuration, it is possible to select a pocket section 70 that accommodates the projection 60 from among a plurality of pocket sections 70 (third pocket section 73 to sixth pocket section 76). This makes it possible to easily change the position of the back B pressed by the projection 60 according to the user U's preference. The third stretching exercise machine 10C may also be configured such that the projection 60 is directly attached (without using the pocket section 70) to the first surface 15c of the main body section 11 at a position corresponding to the placement area of ​​the third airbag 43 and the fourth airbag 44.

[0079] (Regarding the first modified example of the stretching exercise machine) In the stretching exercise machine 10 of this embodiment, the fastening section 13 may be composed of, for example, hook-and-loop fasteners (not shown) interposed between the shoulder strap 12 and the fastening belt 21. In this case, it is preferable that the hook-and-loop fasteners include a first hook-and-loop fastener on the shoulder strap 12 side and a second hook-and-loop fastener on the fastening belt 21 side. With a fastening section composed of such hook-and-loop fasteners, the shoulder strap 12 (shoulder strap) is placed over the user's shoulder S, and the fastening belt 21 is brought to the front or back side under the user's armpit, and then the first hook-and-loop fastener and the second hook-and-loop fastener are used to fasten both belts (shoulder strap 12 and fastening belt 21). At this time, the length of the fastening belt 21 can be easily adjusted by adjusting the fastening position of the first hook-and-loop fastener and the second hook-and-loop fastener. Furthermore, in this case, the fastening section can be constructed more simply, and it is easier to attach and detach the shoulder strap 12 and the fastening belt 21 to the user U's shoulder S.

[0080] (Regarding the second variation of the stretching exercise machine) The stretching exercise machine of this disclosure may be configured to include, for example, a waist belt (not shown) that extends from the main body to the left and right and is wrapped around the user's waist. In this case, the main body can be fixed to the user's back by wrapping and securing the waist belt around the user's waist. In this case, there is no need to tighten the shoulder straps around the shoulders. The shoulder straps 12 and the tightening belt 21 may be integrally formed to be continuous and may be an annular belt body. With a stretching exercise machine equipped with such a waist belt, it is possible to make it easier to attach and detach the main body from the user's back.

[0081] In other words, the stretching exercise machine 10 according to the second modified example above comprises a main body 11 having a pressing mechanism 30 that presses against the user U's body, and a waist belt (not shown) extending from the main body 11 and being tightened around the user U's body (torso). The stretching exercise machine 10 according to the second modified example is a stretching exercise machine used by attaching the main body 11 to the user U's back B, and when the waist belt is tightened around the user U's body, the main body 11 is attached from the user U's left and right shoulders S1 and S2 to the back B, and the pressing mechanism 30 is positioned to press against the area to be treated X, which includes the region between the left and right scapulae K1 and K2 on the user U's back B. With a stretching exercise machine 10 configured in this way, the muscles of the user U's back B can be stretched, similar to the stretching exercise machine 10 according to the other embodiment described above, and the user U can obtain a stretching effect.

[0082] (Operation and effects of this embodiment) The following lists the actions and effects achieved by the stretching exercise machine 10 of this embodiment. (1) The stretching exercise machine 10 of the above embodiment comprises a main body 11 having a pressing mechanism 30 that presses against the user U's body, a pair of shoulder straps 12a and 12b extending from the main body 11 and placed on the user U's left and right shoulders S1 and S2, and a pair of fastening parts 13a and 13b that fasten the pair of shoulder straps 12a and 12b to the user U's left and right shoulders S1 and S2, respectively. The stretching exercise machine 10 of this embodiment is a stretching exercise machine used by attaching the main body 11 to the user U's back B. In the stretching exercise machine 10 of this embodiment, when the pair of shoulder straps 12a and 12b are fastened to the left and right shoulders S1 and S2 of the user U by the pair of fastening parts 13a and 13b, the main body 11 is attached to the user U from the left and right shoulders S1 and S2 to the back B, and the pressing mechanism 30 is positioned in a location that can press against the treatment area X, which is the area between the left and right scapulae K1 and K2 on the user U's back B.

[0083] With this configuration of the stretching exercise machine 10, the main body 11 can be fixed to the user U's shoulder S, and the pressing mechanism 30 can press against the user U's back B. In this case, the same effect as pulling the user U's left and right shoulders S toward the back B and toward the inside can be obtained. Therefore, with this configuration of the stretching exercise machine 10, the muscles of the back B can be stretched, and a stretching effect can be obtained.

[0084] (2) In the stretching exercise machine 10 of the above embodiment, the pressing mechanism 30 includes an airbag 40 that can be inflated and deflated by air being blown in and out. With this configuration of the stretching exercise machine 10, the user U's back B can be pressed by inflating the airbag 40 with air. With this configuration, the structure of the pressing mechanism 30 can be simplified, and the stretching exercise machine 10 can be made lightweight and compact.

[0085] (3) The stretching exercise machine 10 of the above embodiment further comprises a drive mechanism 50 that drives the pressing mechanism 30. In the stretching exercise machine 10 of the above embodiment, the drive mechanism 50 includes a pump 51 that blows air into and out of the airbag 40, and an air tube (piping member) 53 that connects the airbag 40 and the pump 51. With this configuration of the stretching exercise machine 10, the drive mechanism 50 that drives the pressing mechanism 30 can be easily constructed. With this configuration, the stretching exercise machine 10 can be made lightweight and compact.

[0086] (4) In the stretching exercise machine 10 of the above embodiment, the drive mechanism 50 further includes a battery 52 that drives the pump 51, and the shoulder strap 12 has a housing 18 capable of housing at least one of the pump 51 and the battery 52. With this configuration of the stretching exercise machine 10, the pump 51 and battery 52 can be housed in the shoulder strap 12. With this configuration of the stretching exercise machine 10, the user U can move freely while wearing the stretching exercise machine 10.

[0087] (5) In the second stretching exercise machine 10B of the above embodiment, the airbag 40 includes a first airbag 41 that presses against the first treatment area X1, which includes the lower part of the treatment area X, and a second airbag 42 that presses against the second treatment area X2, which includes the area of ​​the treatment area X above the first treatment area X1. With the second stretching exercise machine 10B having this configuration, the area to be pressed by the airbag 40 can be selected from either the lower first treatment area X1 or the upper second treatment area X2, or both the first treatment area X1 and the second treatment area X2. With this configuration, the position of the back B pressed by the airbag 40 can be selected according to the user U's preference.

[0088] (6) In the third stretching exercise machine 10C of the above embodiment, the airbag 40 includes a third airbag 43 that presses against the third treatment area X3, which includes the area to the left of the center in the left-right direction of the treatment area X, and a fourth airbag 44 that presses against the fourth treatment area X4, which includes the area to the right of the center in the left-right direction of the treatment area X. With the third stretching exercise machine 10C configured in this way, the area to be pressed by the airbag 40 can be selected from either the third treatment area X3 on the left side of the back B or the fourth treatment area X4 on the right side of the back B, or both the third treatment area X3 and the fourth treatment area X4. With this configuration, the position of the back B pressed by the airbag 40 can be selected according to the user U's preference.

[0089] (7) In the stretching exercise machine 10 of the above embodiment, the main body 11 comprises a first fabric-like member 15a having a first surface 15c that faces the back B of the user U when attached to the back B, and a second surface 15d opposite to the first surface 15c, and a plate-shaped core material 16 that is positioned opposite to the second surface 15d. In the stretching exercise machine 10 of the above embodiment, the airbag 40 is positioned between the first fabric-like member 15a and the core material 16. With this configuration of the stretching exercise machine 10, the expansion of the airbag 40 toward the core material 16 can be restricted by the core material 16. With this configuration, it is possible to prevent the pressing force from the airbag 40 from escaping to sides other than the back B, thereby ensuring that the pressing force from the pressing mechanism 30 is reliably applied to the user U's back B.

[0090] (8) In the stretching exercise machine 10 of the above embodiment, the main body 11 further includes a projection 60 that can be installed on the first surface 15c. With this configuration of the stretching exercise machine 10, the pressing force from the inflation of the airbag 40 can be locally applied to the user U's back B via the projection 60. This allows the pressing force applied to the user U's back B to be concentrated and increased locally.

[0091] (9) In the stretching exercise machine 10 of the above embodiment, the main body 11 further includes a pocket portion 70 provided on the first surface 15c that can accommodate the projection portion 60. With a stretching exercise machine 10 having this configuration, the projection 60 can be easily provided on the first surface 15c by housing the projection 60 in the pocket portion 70. Furthermore, the pressing position by the projection 60 can be easily changed by changing the position of the projection 60 inside the pocket portion 70.

[0092] (10) In the second stretching exercise machine 10B of the above embodiment, the main body 11 is provided with a plurality of pockets 70 (first pocket 71 and second pocket 72). In the third stretching exercise machine 10C of the above embodiment, the main body 11 is provided with a plurality of pockets 70 (third pocket 73 to sixth pocket 76). With the second stretching exercise machine 10B having this configuration, it is possible to select a pocket 70 to accommodate the projection 60 from among a plurality of pockets 70 (first pocket 71 and second pocket 72). Similarly, with the third stretching exercise machine 10C having this configuration, it is possible to select a pocket 70 to accommodate the projection 60 from among a plurality of pockets 70 (third pocket 73 to sixth pocket 76). This makes it possible to easily change the position of the back B pressed by the projection 60 according to the user U's preference.

[0093] Although embodiments have been described above, it should be understood that various modifications to the form and details are possible without departing from the spirit and scope of the claims. [Explanation of symbols]

[0094] 10 Stretching Exercise Machines 11 Main body 12 Shoulder strap 13. Fastening part 14. Detention Unit 16 Core material 30 Pressing mechanism 40 airbags 41. First airbag 42. Second airbag 43. Third airbag 44. Fourth airbag 50 Drive mechanism 51 Pump 52 batteries 60 Protrusion 70 Pocket section U user B Back S shoulder X Treatment area X1 1st treated area X2 2nd treated area X3 3rd treated area X4 4th treated area

Claims

1. A main body having a pressing mechanism that presses against the user's body, A pair of shoulder straps extending from the main body and worn on the user's left and right shoulders, The aforementioned pair of shoulder straps are equipped with a pair of fastening parts that fasten to the left and right shoulders of the user, respectively. A stretching exercise machine in which the main body is attached to the user's back, When the pair of shoulder straps are fastened to the left and right shoulders of the user by the pair of fastening parts, The main body is worn by the user from both shoulders to the back, and the pressing mechanism is positioned to press on the area to be treated, including the region between the left and right shoulder blades on the user's back, in a stretching exercise machine.

2. The pressing mechanism is, A stretching exercise machine according to claim 1, comprising an airbag that can be inflated and deflated by the inflow and outflow of air.

3. The system further comprises a drive mechanism for driving the aforementioned pressing mechanism, The aforementioned drive mechanism is A pump for supplying and releasing the aforementioned air to the airbag, The stretching exercise machine according to claim 2, comprising a piping member connecting the airbag and the pump.

4. The drive mechanism further includes a battery for driving the pump, The aforementioned shoulder strap portion is The stretching exercise machine according to claim 3, having a housing capable of housing at least one of the pump and the battery.

5. The aforementioned airbag, A stretching exercise machine according to claim 2 or claim 3, comprising at least one of a first airbag that presses against a first treatment area including the lower region of the treatment area, and a second airbag that presses against a second treatment area including the region of the treatment area above the first treatment area.

6. The aforementioned airbag, A stretching exercise machine according to claim 2 or 3, comprising at least one of a third airbag that presses against a third treatment area including a region to the left of the center in the left-right direction of the treatment area, and a fourth airbag that presses against a fourth treatment area including a region to the right of the center in the left-right direction of the treatment area.

7. The main body is, A cloth-like member having a first surface that faces the user's back when attached to the user's back, and a second surface opposite to the first surface, It comprises a plate-shaped core material positioned opposite to the second surface, The stretching exercise machine according to claim 1 or claim 2, wherein the airbag is disposed between the fabric member and the core material.

8. The stretching exercise machine according to claim 7, wherein the main body further comprises a projection that can be installed on the first surface.

9. The stretching exercise machine according to claim 8, wherein the main body further comprises a pocket portion provided on the first surface and capable of accommodating the protrusion.

10. The stretching exercise machine according to claim 9, wherein the main body comprises a plurality of the pockets.

Images