Back cover body of massage machine

Abstract

To provide a back cover body of a massage machine which enables a user to take a relaxed posture and receive a massage to the back by providing the back cover body with a function capable of being switched to a configuration for preventing a posture of bending the chest when the user leans on a backrest part.SOLUTION: A back cover body of massage machine according to the present invention is a back cover body 2 of a massage machine which is provided in a massage machine 1 having a backrest portion 12 and incorporating a back massage mechanism 13 in the backrest portion 12 for massaging the treatment area of the user with massage elements 15, and which covers the front of a backrest portion 12, wherein the back cover body 2 is a long sheet body that can be transformed into a pillow body 3 above the backrest portion 12 by rolling it up, and can be placed in a position adjacent to the massage elements 15.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a back cover body that can be provided on the front surface of the backrest portion of a massage machine.

Background Art

[0002] Conventionally, some chair-type massage machines are provided with a back cover body that is disposed in a hanging manner on the front surface of the backrest portion. For example, Patent Document 1 discloses a structure in which a back cover body is hung and covered on the backrest portion. This back cover body is, for example, for protecting the back when the pressing force of a back massage mechanism built in the backrest portion is felt to be strong.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] As described above, when the pressing force of the back massage mechanism is felt to be strong, using the back cover body by hanging it on the front of the backrest has a sufficient effect of protecting the back.

[0005] On the other hand, when the treatment element of the back massage mechanism descends from above and moves to the user's shoulder, the shoulder is pushed by the treatment element and the chest moves forward, while the head is left behind, resulting in an "uncomfortable posture" where the chest is arched. When such a posture occurs, the user cannot receive an effective massage. It is impossible to improve this situation with the above-described back cover body.

[0006] To avoid such a situation, in Patent Document 1, a pillow body on which the head can be placed is provided at the upper part of the backrest. By placing the head on the pillow body, one can lean against the backrest and relax to receive a back massage by the back massage mechanism.

[0007] However, when equipped with the back cover body and the pillow body that have the above effects, the number of components in the configuration increases, that is, the cost increases. Also, when not using either or both of the back cover body and the pillow body, it becomes difficult to find a place to put them.

[0008] Therefore, in view of the above problems, the present invention aims to provide a back cover body of a massage machine that can avoid an unnatural posture in which the chest arches when a massage is performed on a user, and enables the user to receive a massage in a relaxed posture.

Means for Solving the Problems

[0009] To achieve the above object, the present invention has taken the following technical means.

[0010] The back cover body of the massage machine according to the present invention is provided in a massage machine having a backrest portion and incorporating a back massage mechanism for massaging a treatment portion of a user with a treatment element inside the backrest portion, and is a back cover body that covers the front surface of the backrest portion. The back cover body is a long sheet body that can be deformed into a pillow body at the upper part of the backrest by being rolled up, and is arranged at a position adjacent to the treatment element.

[0011] Preferably, the pillow body is arranged above the treatment element and has a size that protrudes forward from the treatment element, or is arranged so as to overlap the front side of the treatment element.

[0012] Preferably, an elastic cushioning material is accommodated inside the back cover body, and when the back cover body is rolled up and deformed into the scroll-shaped pillow body, the scroll-shaped pillow body may have a number of turns and / or a thickness that enables it to support the back side of the user.

[0013] Preferably, a first engaging portion is provided on one surface of the back cover body, and a second engaging portion is provided on the other surface. After the back cover body is rolled up into a scroll shape, by engaging the first engaging portion and the second engaging portion, it is possible to prevent the rolled-up state of the back cover body from loosening and / or to position the back cover body.

[0014] Preferably, the back cover body has a first engaging portion, and the backrest portion has a third engaging portion. After the back cover body is rolled up into a scroll shape, by engaging the first engaging portion and the third engaging portion, it is possible to prevent the rolled-up state of the back cover body from loosening and / or to position the back cover body. Preferably, the first engaging portion is a ratchet belt.

[0015] Preferably, the back massage mechanism has a pair of left and right treatment members that massage the treatment part of the user, and the ratchet belt is provided at a middle portion in the longitudinal direction of the back cover body, between the pair of left and right treatment members or on the left and right outer sides of the pair of left and right treatment members.

[0016] Preferably, when the back cover body is rolled up to form the pillow body, the ratchet belt has a length such that the tip of the ratchet belt can reach and engage with the backrest portion.

[0017] Preferably, when the back cover body is rolled up to form the pillow body, the ratchet belt has a length such that the tip of the ratchet belt can reach and engage with the backrest portion.

Advantages of the Invention

[0018] According to the back cover body of the massage machine of the present invention, by using the back cover body, it becomes possible to receive a massage on the back in a relaxed state while avoiding an unnatural posture of the user.

Brief Description of the Drawings

[0019]

Figure 1

Figure 2

Figure 3

Figure 4

Modes for Carrying Out the Invention

[0020] Hereinafter, embodiments of the back cover body of the massage machine according to the present invention will be described with reference to the drawings.

[0021] In the embodiments described below, a plate-type massage machine 1 will be described as an example of the massage machine. Note that the embodiments described below are an example of embodying the present invention, and do not limit the configuration of the present invention with the specific examples. Also, regarding the drawings, for ease of viewing, some of the components are omitted or drawn using virtual lines or the like.

[0022] Also, regarding the directions such as the front-back and left-right of the massage machine 1, they are as shown in FIGS. 1 to 4. This is consistent with the direction seen from a user sitting on a chair 11 on which the massage machine 1 is installed. In the following description, the directions shown in FIGS. 1 to 4 will be used as the directions when explaining the back cover body 2 of the present invention provided in the massage machine 1.

[0023] First, a plate-type massage machine 1 provided with the back cover body 2 of the present invention will be described.

[0024] As shown in FIGS. 1 and 2, the massage machine 1 of this embodiment is long in the vertical direction and is installed so as to be leaned against the backrest of a normal chair 11 used in a living room or the like, and massages the back of a user sitting on the chair 11.

[0025] The massage machine 1 has a long and plate-shaped case body in the vertical direction. This case body is a backrest portion 12 arranged along the back (treatment portion) of the user. Inside the backrest portion 12 (case body), a vertically long space is provided, and a back massage mechanism 13 for massaging the back of the user is accommodated. A seat portion 14 is provided at the lower part of the backrest portion 12.

[0026] A vertically long opening is provided on the front surface of the backrest portion 12 (case body). From the opening, the treatment balls 15 provided in the back massage mechanism 13 project forward. The opening is covered without a gap by a covering cloth 16 or the like so that the treatment balls 15 of the back massage mechanism 13 do not directly hit the back (neck muscles - shoulders - waist) of the user. Note that the covering cloth 16 may cover the entire backrest portion 12 (massage machine 1).

[0027] As shown in FIGS. 1 and 2, the back massage mechanism 13 of this embodiment includes treatment balls 15 that perform kneading massage on the treatment portion (neck muscles - shoulders - waist), arm members 17 provided with the treatment balls 15, a rotary drive shaft (not shown) that penetrates the proximal end side of the arm members 17, and rotates the rotary drive shaft A drive portion (not shown) for driving, and a conversion portion (not shown) provided at the proximal end of the arm member 17 for converting the rotational driving force of the rotary drive shaft into a kneading massage operation.

[0028] In addition, a pair of lumbar air bags 18 for massaging the waist of the user are arranged on the left and right sides of the lower part of the backrest portion 12. A pair of leg air bags 19 for massaging the legs of the user are arranged on the left and right sides of the seat portion 14.

[0029] A pair of left and right arm members 17 are provided. The arm members 17 protrude forward (towards the user's back side) from the backrest portion 12 that constitutes the massager 1. The arm members 17 of the present embodiment have a shape in which the tips are divided and protrude in two directions, diagonally forward and upward and diagonally forward and downward, and are curved.

[0030] Therapeutic members 15 formed in a spherical or ring shape are provided at the respective branched upper tips and lower tips of the arm member 17. The middle portion in the longitudinal direction of the arm member 17 is the base end. A conversion unit for converting into a kneading massage operation is provided at the base end of the arm member 17.

[0031] When the pair of left and right arm members 17 of the back massage mechanism 13 approach and separate from each other, the left and right therapeutic members 15 also approach and separate in the left - right direction, and by repeating this, a kneading massage is performed on the treatment part. Also, the back massage mechanism 13 is movable in the vertical direction by a moving drive unit 20.

[0032] As shown in FIGS. 2 and 4, the back cover body 2 of the present embodiment is a long cloth body (in other words, a long sheet body) provided in the massager 1 having a back massage mechanism 13 provided with a pair of left and right therapeutic members 15 and a backrest portion 12 incorporating the back massage mechanism 13.

[0033] The back cover body 2 encloses an elastic cushion member or the like inside, and in order to adjust the strength of the kneading massage by the therapeutic member 15 (kneading ball 15) on the treatment part, it is provided so as to hang down in front of the backrest portion 12 of the massager 1 and covers the therapeutic member 15.

[0034] When the user feels that the pressing of the therapeutic member 15 is strong, the back cover body 2 is hung down along the front surface of the backrest portion 12 of the massager 1 to soften (weaken) the contact (pressing) of the therapeutic member 15 during the massage.

[0035] The width of the back cover body 2 may be equal to the width of the backrest portion 12 of the massager 1 or narrower than the width of the backrest portion 12. The width of the back cover body 2 may be at least wider than the left - right interval between the pair of treatment members 15 provided. The width of the back cover body 2 in the present embodiment is, for example, about 30 cm.

[0036] The length of the back cover body 2 may be equal to the length of the backrest portion 12 of the massager 1 or slightly shorter than the length of the backrest portion 12. The length of the back cover body 2 in the present embodiment is, for example, about 80 cm.

[0037] In addition, in the present embodiment, regarding the configuration of the back cover body 2, the above - described shape and dimensions are exemplified, but it is not limited to the exemplified ones as long as it can cover the front surface of the backrest portion 12.

[0038] One side of the wire fastener 8 is provided at the upper end of the back cover body 2. Also, the other side of the wire fastener 8 is provided at the upper part of the massager 1 (backrest portion 12). By engaging one side of this wire fastener 8 with the other side, the back cover body 2 is attached in a hanging state on the front surface of the massager 1 (backrest portion 12). Note that the upper end of the back cover body 2 may be fixedly provided, for example, by sewing it to the upper end of the backrest portion 12.

[0039] As shown in FIGS. 1 and 3, the back cover body 2 of the present embodiment is characterized in that it can be deformed (switched) into a pillow body 3 on which the head can be placed at the upper part of the backrest portion 12 of the massager 1 by rolling up the above - described cloth body. Note that the back surface (rear surface) of the back cover body 2 becomes the front surface of the pillow body 3 when rolled up.

[0040] Inside the back cover body 2, a cushioning material is accommodated. When the user feels that the pressure by the applicator 15 of the back massage mechanism 13 built in the backrest portion 12 is strong, the cushioning material in the back cover body 2 relaxes the pressure to protect the back. Further, when the cushioning material in the back cover body 2 is deformed (switched) into the pillow body 3, for example, it supports and protects the head and the neck muscles.

[0041] The lower part (the part that becomes the pillow body 3) on the surface side of the back cover body 2 in which the cushioning material is accommodated may be sewn so as to be partitioned into a plurality of sections. For example, in the present embodiment, as shown in FIG. 2, a cushioning material is accommodated inside the back cover body 2, and from the middle part in the longitudinal direction to the lower part on the surface side of the back cover body 2, it is sewn at predetermined intervals in a vertically long diamond lattice shape (sewing part 2a).

[0042] That is, in the back cover body 2 of the present embodiment, the cushioning material is accommodated in a plurality of spaces partitioned in a lattice shape. Note that the surface side (sewing part 2a) of the back cover body 2 may be sewn at predetermined intervals into, for example, a horizontal stripe border pattern.

[0043] By sewing (providing the sewing part 2a) so as to partition the middle part in the longitudinal direction to the lower part (the part that becomes the pillow body 3) of the back cover body 2 in this way, when the back cover body 2 is rolled up, wrinkles are less likely to occur in the cloth body on the inner surface side, and it can be smoothly and beautifully rolled up. Further, when the back cover body 2 is hung down in front of the backrest portion 12, the sewing (sewing part 2a) of the back cover body 2 becomes a design, and the appearance quality is also improved.

[0044] As shown in FIGS. 1 and 3, the pillow body 3 is located adjacent to the applicator 15 provided in the back massage mechanism 13, has a size that protrudes forward from the applicator 15 (the kneading ball 15), and is configured to be able to elastically support the treatment part (shoulder) or the upper side (neck muscles - head) from the treatment part. The pillow body 3 has a height that protrudes forward from the position of the applicator 15 that protrudes forward.

[0045] The pillow body 3 can be arranged above the treatment element 15 by rolling up the back cover body 2. The pillow body 3 is configured to be able to support the head and the neck muscles serving as the treatment part by rolling up the cushion-like back cover body 2. By rolling up the back cover body 2 and arranging the pillow body 3 above the treatment element 15, it becomes possible to adjust the position of the treatment element 15 with respect to the neck muscles (treatment part).

[0046] When the back cover body 2 is deformed (switched) into the pillow body 3, the pillow body 3 is configured to have a number of windings and a thickness that can support and protect the head and neck muscles.

[0047] The width of the pillow body 3 is preferably at least wider than the lateral width of the head of a general user. The width of the pillow body 3 in this embodiment is about 30 cm. The pillow body 3 has a height that protrudes forward from the position of the treatment element 15 that protrudes forward. The pillow body 3 preferably has a length that can cover the portion from the neck muscles to the head. The height of the pillow body 3 (outer diameter when the back cover body 2 is rolled up) is, for example, preferably about 15 to 20 cm.

[0048] The height of the pillow body 3 is determined by the number of windings when the back cover body 2 is rolled up to form the pillow body 3, the thickness of the cover body 2, the length of the back cover body 2, etc. Note that the length of the back cover body 2 is preferably matched to the length of the backrest part 12 (massage machine 1).

[0049] For example, when deforming into the pillow body 3, the length of the back cover body 2 is such that it can be rolled about 3 to 5 times. In this embodiment, the length of the back cover body 2 is about 80 cm. Also, the thickness of the cover body 2 is, for example, about 5 to 10 mm (including the thickness of the cushion material). In this embodiment, the thickness of the back cover body 2 is about 5 mm. In this case, the height of the pillow body 3 (outer diameter when the back cover body 2 is rolled up) is about 15 cm.

[0050] In addition, in this embodiment, regarding the configuration of the pillow body 3, the above-described shape, dimensions, etc. have been exemplified. However, as long as it can support the part from the neck muscles to the shoulders, it is not limited to the exemplified ones. As a method of rolling up the back cover body 2, as shown in FIG. 1, the lower end of the back cover body 2 may be folded toward the front surface side of the back cover body 2 and then wound upward as it is. Conversely, the lower end of the back cover body 2 may be folded toward the back surface side of the back cover body 2 and then wound upward as it is.

[0051] According to the back cover body 2 of the present invention provided on the front surface of the backrest portion 12 of the massage machine 1, by switching the back cover body 2 to the pillow body 3, for example, the pillow body 3 can support the user's head. Therefore, when the masseur 15 of the back massage mechanism 13 descends from above and moves to the user's shoulders during the massage, when the shoulders are pushed by the masseur 15 and the chest moves forward, on the other hand, the user's head is left behind It can be prevented from becoming a position where the chest is arched and an uncomfortable posture is formed.

[0052] In this way, by rolling up the back cover body 2 and switching to the pillow body 3, the user can receive an effective massage in an appropriate posture.

[0053] The pillow body 3 can be arranged so as to overlap the front side of the masseur 15 by rolling up the back cover body 2. The pillow body 3 is configured to be able to support the shoulders that become the treatment part by rolling up the back cover body 2 having cushioning properties.

[0054] As shown by the virtual line (two-dot broken line) in FIG. 1, when the back massage mechanism 13 is moved upward and the masseur 15 is stopped around the shoulders so that the pillow body 3 overlaps (hides) the front side of the masseur 15, the shoulders can be supported in the non-massage state.

[0055] Since the treatment element 15 protrudes forward from the opening of the backrest part 12 (case body), by arranging the treatment element 15 so as to be hidden by the pillow body 3, it serves as a buffer material for avoiding the protruding state of the treatment element 15 in the non-massage state. That is, when not performing massage, by covering the treatment element 15 with the pillow body 3, the treatment part (shoulder part) can be protected. In this way, it is preferable that the vertical position of the pillow body 3 can also be arbitrarily changed.

[0056] As shown in FIG. 4, on the back surface of the back cover body 2, a pair of winding belts 4 (first engaging parts) are provided on the left and right, which wind up the back cover body 2 and engage with the upper part of the backrest part 12 of the massage machine 1. The winding belts 4 are provided at the middle part in the longitudinal direction of the back cover body 2, between the pair of left and right treatment elements 15 or outside the pair of left and right treatment elements 15.

[0057] The winding belt 4 of the present embodiment has a length of about 15 cm and a width of about 2 cm. The winding belts 4 are attached to the left and right edges of the middle part in the longitudinal direction of the back cover body 2 respectively. Regarding the sewing position of the winding belt 4, in the present embodiment, the base end of the winding belt 4 is sewn to the back cover body 2 at a position about 35 cm below the upper part of the back cover body 2.

[0058] The winding belt 4 is located on the back side when it is the back cover body 2, and is located on the front side when the back cover body 2 is wound up to form the pillow body 3, and has a length such that the tip reaches the backrest part 12 and can engage.

[0059] Also, by arranging the winding belt 4 on the back side of the back cover body 2 as described above, the wound back cover body 2 can be surely fixed to form the pillow body 3.

[0060] In the present embodiment, a winding belt 4 is provided so as to face the vertical direction (along the longitudinal direction of the back cover body 2), and the winding belt 4 is engaged with the upper back surface of the backrest portion 12 to hold the left and right ends of the pillow body 3. However, regarding the length, number, sewing position, etc. of the winding belt 4 and the attachment method, as long as it is a configuration capable of holding the pillow body 3, it is not limited to the illustrated example.

[0061] For example, a winding belt 4 may be provided so as to face the left - right direction (in a direction intersecting (orthogonal) the longitudinal direction of the back cover body 2), and the winding belt 4 may be engaged with the upper side surface of the backrest portion 12 to hold the left and right ends of the pillow body 3.

[0062] A belt engaging portion 5 (snap 5) is provided at the tip of the winding belt 4. On the back surface (rear surface) of the back cover body 2, a back engaging portion 6 (snap 6) that enables engagement with the belt engaging portion 5 is provided. The back engaging portion 6 (snap 6) is for restraining the winding belt 4 to prevent contact with the applicator 15 when used as the back cover body 2.

[0063] When the back cover body 2 is wound up (the lower end of the back cover body 2 is folded toward the front side of the back cover body 2 and wound upward as it is), the back surface of the back cover body 2 becomes the front surface of the pillow body 3, and the winding belt 4 appears. By engaging the belt engaging portion 5 of the winding belt 4 with the upper engaging portion 7 (snap 7) provided on the upper back of the massage machine 1 (backrest portion 12), the pillow body 3 can be held at the upper part of the massage machine 1 (backrest portion 12).

[0064] A plurality of belt engaging portions 5 (snaps 5) may be provided on the winding belt 4. For example, they may be provided at the tip and the middle portion in the longitudinal direction of the winding belt 4. By providing a plurality of belt engaging portions 5, the height (vertical position) of the pillow portion 3 in the vertical direction can be changed.

[0065] In the present embodiment, the engaging portion 5, the back engaging portion 6, and the upper engaging portion 7 are snaps. However, for the winding Any member (such as a hook-and-loop fastener) that can engage the winding belt 4 is not limited to the examples shown.

[0066] By using the winding belt 4, the belt engaging portion 5, the upper engaging portion 7, etc., the pillow body 3 obtained by winding and deforming the back cover body 2 can be securely fixed above the backrest portion 12.

[0067] If the above-described winding belt 4, belt engaging portion 5, back engaging portion 6, etc. are considered as engaging portions for fixing the back cover body 2 in a wound-up state, regarding the engaging portions provided on the back cover body 2, on one surface (for example, the front surface) of the back cover body 2, there is a first engaging portion, and on the other surface (the back surface), a second engaging portion will be provided.

[0068] With this configuration, after winding up the back cover body 2 in a scroll shape, by engaging the first engaging portion and the second engaging portion, it becomes possible to prevent the wound state of the back cover body 2 from loosening, and at the same time, the back cover body 2 can be positioned.

[0069] For example, when the lower end of the back cover body 2 is folded to the back surface side of the back cover body 2 and wound upward as it is, and the second engaging portion (for example, a snap) is engaged with the first engaging portion (for example, a snap), the engaging portion is on the back surface of the back cover body 2, that is, the rear side of the pillow body 3, and it looks good.

[0070] Also, a first engaging portion such as the winding belt 4 may be provided on the other surface of the back cover body 2, a third engaging portion such as the back engaging portion 6 may be provided at the upper end of the backrest portion 12, and after winding up the back cover body 2, the first engaging portion and the third engaging portion may be engaged with each other.

[0071] As the engaging portion, as described above, various forms such as snaps, hook-and-loop fasteners, and belt bodies can be adopted.

[0072] According to the back cover body 2 of the present invention provided in the massager 1 above, when the user leans on the backrest portion 12, the pillow body 3 supports the user's back side (for example, the user's head, neck, shoulders), preventing the user from assuming a posture where the chest is arched, and allowing the user to relax and receive a back massage in a posture where the back is straight.

[0073] Now, the present invention can also be regarded as a pillow body 3 formed by winding a cloth body, and the cloth body can be switched to a back cover body 2 that hangs down in front of the backrest portion 12 and covers the front surface.

[0074] It should be considered that all aspects of the embodiments disclosed this time are illustrative and not restrictive. In particular, in the embodiments disclosed this time, matters not explicitly stated, such as operating conditions, operating conditions, dimensions of components, weights, etc., do not deviate from the scope normally implemented by those skilled in the art, and those skilled in the art can easily adopt matters that can be assumed.

[0075] For example, the length of the arm member 17 provided in the back massage mechanism 13, the inclination angle of the arm member 17 with respect to the rotation drive shaft, the separation distance between the left and right arm members 17, etc. can be appropriately changed in view of the treatment range. Also, various methods can be adopted regarding the form and locking method of the winding belt 4.

Explanation of Reference Numerals

[0076] 1 Massager 2 Back cover body 3 Pillow body 4 Winding belt 5 Belt engaging portion 6 Rear engaging portion 7 Upper engaging portion 8 Zip fastener 11 Chair 12 Backrest portion 13 Back massage mechanism 15 Treatment element 17 Arm member

Claims

1. A back cover body provided in a massage machine having a backrest portion and incorporating a back massage mechanism for massaging a treatment portion of a user with a treatment element inside the backrest portion, wherein the back cover body is a long sheet body that can be deformed into a pillow body at the upper part of the backrest portion by being rolled up and can be arranged at a position adjacent to the treatment element. A back cover body of a massage machine, characterized by the above.

2. The pillow body is arranged above the treatment element and has a size that protrudes forward from the treatment element, or is arranged so as to overlap the front side of the treatment element. The back cover body of the massage machine according to Claim 1, characterized by the above.

3. An elastic cushioning material is accommodated inside the back cover body, and when the back cover body is rolled up to be deformed into the scroll-shaped pillow body, the scroll-shaped pillow body has a number of winding turns and / or a thickness capable of supporting the user's back side. The back cover body of the massage machine according to Claim 2, characterized by the above.

4. On one surface of the back cover body, there is a first engaging portion, and on the other surface, there is a second engaging portion. After the back cover body is rolled up into a scroll shape, by engaging the first engaging portion and the second engaging portion, it is configured to prevent the rolled-up state of the back cover body from loosening and / or to be able to position the back cover body. The back cover body of the massage machine according to any one of Claims 1 to 3, characterized by the above.

5. The back cover body has a first engaging portion, and the backrest portion has a third engaging portion. After the back cover body is rolled up into a scroll shape, by engaging the first engaging portion and the third engaging portion, it is configured to prevent the rolled-up state of the back cover body from loosening and / or to be able to position the back cover body. The back cover body of the massage machine according to any one of Claims 1 to 3, characterized by the above.

6. The back cover body of the massage machine according to Claim 4, characterized in that the first engaging portion is a winding belt.

7. The back massage mechanism has a pair of left and right treatment elements for massaging a treatment portion of a user, and the winding belt is provided at a middle portion in the longitudinal direction of the back cover body, between the pair of left and right treatment elements or on the left and right outer sides of the pair of left and right treatment elements. The back cover body of the massager according to claim 6, characterized in that...

8. When the winding belt is wound up to form the back cover body into the pillow body, the length of the winding belt is such that the tip of the winding belt reaches the backrest portion and can be engaged. The back cover body of the massager according to claim 6, characterized in that...

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