Massage machine

Abstract

To reliably bring an air bag into contact with a treatment part at the time of treatment start irrespectively of a body type of a person to be treated.SOLUTION: A massage machine 100 includes a detection part 2 and a determination part 32. The detection part 2 detects a pressure of an air bag 1. The determination part 32 determines presence or absence of contact of the air bag 1 with respect to a person to be treated U on the basis of a detection result in the detection part 2. When the determination part 32 determines that the contact is present, the massage machine 100 starts treatment by the air bag 1.SELECTED DRAWING: Figure 3B

Description

Technical Field

[0001] The present invention relates to a massage machine.

Background Art

[0002] Conventionally, a massage machine that treats a subject with an airbag has been known. For example, in the massage machine of Patent Document 1, air cells (airbags) are arranged in body support parts such as a seat part, a backrest part, a pillow part, a footrest (ottoman), and an armrest part. A pressure sensor for detecting the massage strength applied to the user is arranged between the air cell and the body support part.

[0003] In the massage machine of Patent Document 1, user information and setting information are stored in a storage unit. The user information defines attributes such as age, gender, and body type for each user. The setting information defines the relationship between the above-described attributes and the massage strength, and also pre-associates each massage strength with a target detection value of the pressure sensor. When user information is selected based on a user's operation input or user authentication, the massage strength is determined based on the attributes defined in the user information and the setting information, and the target detection value of the pressure sensor corresponding to the massage strength is set.

[0004] In the massage machine of Patent Document 1, for example, the driving of the air cell is controlled by changing the air supply / discharge time. At this time, the control amount of the air cell is repeatedly adjusted so that the error between the detection value and the target detection value of the pressure sensor becomes small. Thereby, the massage strength set according to the user is applied to the user.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0006] However, due to differences in the physique of the patient, the amount of inflation of the airbag required to come into contact with the patient varies. Therefore, the air supply time required for the necessary airbag also varies. Therefore, when the patient is small or slender, there is a risk that the air supply to the airbag will end before the airbag comes into contact with the patient, and the treatment will start.

[0007] In view of the above situation, an object of the present invention is to surely bring the airbag into contact with the treatment site at the start of treatment regardless of the physique of the patient.

Means for Solving the Problems

[0008] A massage machine according to one aspect of the present invention for achieving the above object includes a detection unit and a determination unit. The detection unit detects the pressure of the airbag. The determination unit determines the presence or absence of contact of the airbag with the patient based on the detection result of the detection unit. When the determination unit determines that there is contact, the treatment with the airbag is started.

[0009] Further features and advantages of the present invention will be further clarified by the embodiments shown below.

Effects of the Invention

[0010] According to the present invention, the airbag can be surely brought into contact with the treatment site at the start of treatment regardless of the physique of the patient.

Brief Description of the Drawings

[0011]

Figure 1

Figure 2

Figure 3A

Figure 3B

Figure 3C

Embodiments for Carrying Out the Invention

[0012] Embodiments of the present invention will be described below with reference to the drawings. In the following description, the "trunk" refers to the central part of the body other than the head, neck, and limbs. The "shoulder" refers to the part from the part (shoulder joint) connecting the trunk and the arm to the base of the neck. The "upper arm" refers to the part of the arm from the elbow (elbow joint) to the shoulder (shoulder joint). The "forearm" refers to the part of the arm from the wrist (wrist joint) to the elbow (elbow joint). The "hand" is the part distal to the wrist (wrist joint) and refers to the part from the wrist (wrist joint) to the fingertips. The "hip" is the buttocks and refers to the part below the waist and above the thighs. The "thigh" refers to the part from the hip joint to the knee (knee joint). The "hip joint" refers to the joint part connecting the pelvis and the thigh bone (i.e., the femur). The "lower leg" refers to the part from the knee (knee joint) to the ankle. The "foot" refers to the part from the ankle to the tip (i.e., the toenail tip).

[0013] <1. Embodiment> FIG. 1 is a perspective view of the chair-type massage machine 100. FIG. 2 is a block diagram showing a control system for controlling the operation of the chair-type massage machine 100. Hereinafter, the chair-type massage machine 100 may be referred to as the "massage machine 100".

[0014] <1-1. Massage Machine 100> The massage machine 100 includes a seat part 101, a backrest part 102, a pair of left and right base parts 103, a pair of left and right armrest parts 104, and an ottoman 105.

[0015] The subject U sits on the seat part 101. The seat part 101 supports the hips and thighs of the subject U. Note that airbags for treating the lower part of the subject's hips and the lower part of the thighs may be arranged on the upper surface of the seat part 101. Further, airbags for treating the lateral parts in the left-right direction of the subject U's hips and the lateral parts in the left-right direction of the thighs may be arranged on the wall parts 1011 erected at both ends in the left-right direction of the seat part 101.

[0016] The backrest portion 102 is erected with respect to the seat portion 101 and supports the head and torso (for example, shoulders, waist, and back) of the subject U. In the present embodiment, the backrest portion 102 is connected to the rear end portion of the seat portion 101. The backrest portion 102 is rotatable about a backrest rotation axis Ja extending along the left-right direction with respect to the seat portion 101. For example, the backrest portion 102 can recline by rotating rearward from the upright state. Also, the backrest portion 102 can stand up by rotating forward from the reclined state.

[0017] As shown in FIG. 1, a headrest portion 1021 is disposed on the upper portion of the backrest portion 102. The headrest portion 1021 supports the head and neck of the subject U.

[0018] Also, a treatment unit 1022 and a pair of left and right guide rails 1023 are incorporated in the backrest portion 102. The treatment unit 1022 can treat the torso and neck of the subject U. The guide rails 1023 extend along the backrest portion 102 in the longitudinal direction of the backrest portion 102. The longitudinal direction is, for example, the direction from one of the rear end portion of the seat portion 101 and the headrest portion 1021 to the other. The guide rails 1023 guide the treatment unit 1022 in the longitudinal direction. Thereby, the treatment unit 1022 can move up and down in the longitudinal direction of the backrest portion 102 to treat the back, waist, etc. of the subject U.

[0019] Also, a pair of left and right side treatment portions 1024 are further disposed on the backrest portion 102. The side treatment portions 1024 are respectively disposed at the left and right end portions of the front surface of the backrest portion 102 and protrude forward from the front surface of the backrest portion 102. An airbag is disposed in each of the side treatment portions 1024. The airbag treats the shoulders, upper arms, etc. of the subject U. Also, the massager 100 can hold the torso of the subject U (for example, the portion between both shoulders) by inflating the airbags respectively disposed in the pair of left and right side treatment portions 1024.

[0020] In addition, an airbag for treating the rear part of the body (for example, the rear part of the shoulders, the upper part of the back, and the rear part of the waist) may be arranged on the backrest part 102, or an airbag for treating the pelvic part by pressing the rear part of the buttocks may be arranged.

[0021] The base part 103 is erected on both sides in the left - right direction of the seat part 101 and supports the armrest part 104.

[0022] The armrest part 104 supports the forearm and hand of the subject U. The pair of left - and - right armrest parts 104 have a symmetric shape with respect to each other. In addition, an airbag (not shown) for treating the forearm and hand of the subject U may be arranged on each armrest part 104.

[0023] The ottoman 105 is arranged near the front end of the seat part 101 and houses the lower leg and foot of the subject U. The ottoman 105 is rotatable about the ottoman rotation axis Jb. The ottoman rotation axis Jb extends in the left - right direction through the front end of the seat part 101 and the upper end of the ottoman 105. In this embodiment, the upper end of the ottoman 105 is rotatably supported with respect to the front end of the seat part 101. An airbag 1 for treating the lower leg Ua of the subject U and an airbag for treating the foot of the subject U are arranged on the ottoman 105.

[0024] <1 - 2. Control system of the massager 100> Next, with reference to FIG. 2, a configuration example of the control system of the massager 100 will be described. The massager 100 further includes an input part 1061, a storage part 1062, a control part 107, an actuator group 1081, an air pump 1082, a solenoid valve group 1083, and an airbag group 1084.

[0025] The input unit 1061 receives operation inputs and outputs signals based on the operation inputs to the control unit 107. The operation inputs include selection of the subject information to be described later, selection of the treatment pattern, adjustment of the intensity of the treatment, and the like. The input unit 1061 is connected to the control unit 107 via a code line. The input unit 1061 can be attached to and detached from a stand (reference numeral omitted). The stand is fixed to the armrest portion 104 disposed on the left side of the seat portion 101.

[0026] The storage unit 1062 is a non-transitory storage medium that retains stored information even when the power supply is stopped. The storage unit 1062 stores, for example, programs and data necessary for the control unit 107 to control the operation of the massager 100. In addition, the storage unit 1062 stores subject information for identifying the subject U and treatment intensity information. The treatment intensity information is information that defines the level of the treatment intensity and the reference value of the treatment intensity for the subject U, and is stored for each subject information.

[0027] The control unit 107 is disposed, for example, below the seat portion 101, and controls each part of the massager 100 based on signals output from the input unit 1061 and the like. For example, the control unit 107 controls the actuator group 1081, the air pump 1082, the solenoid valve group 1083, and the like.

[0028] Also, as shown in FIG. 2, the control unit 107 of the massager 100 includes an arithmetic unit 31, a determination unit 32, and a setting unit 33. These will be described later.

[0029] The actuator group 1081 includes a plurality of actuators. For example, the actuator group 1081 includes an actuator for the backrest portion that rotates the backrest portion 102, an actuator for the ottoman that rotates the ottoman 105, and the like.

[0030] The electromagnetic valve group 1083 includes a plurality of electromagnetic valves. Some of the plurality of electromagnetic valves are provided between the air pump 1082 and the airbag group 1084 provided in the massage machine 100, and switch the communication / shut-off between the two. Further, some of the other plurality of electromagnetic valves are provided between the airbag group 1084 and the outside, and switch the communication / shut-off between the two.

[0031] The airbag group 1084 includes airbags arranged in each part of the massage machine 100. For example, the airbag group 1084 includes airbags arranged in the seat part 101, the wall part 1011, the backrest part 102, the side treatment part 1024, the armrest part 104, the ottoman 105, and the like.

[0032] For example, when the air pump 1082 and the airbag communicate with each other through some electromagnetic valves, air is supplied from the air pump 1082 to the airbag through the electromagnetic valves, and the airbag expands. On the other hand, when the outside and the airbag communicate with each other due to the operation of some other electromagnetic valves, the air in the airbag is discharged to the outside through the electromagnetic valves. As a result, the airbag contracts. Further, when the airbag does not communicate with either the air pump 1082 or the outside due to the operation of each electromagnetic valve, the amount of air in the airbag is maintained. The other airbags included in the airbag group 1084 operate in the same manner.

[0033] <1-3. Contact Detection of the Airbag with the Subject U> Next, the massage machine 100 further includes a detection unit 2. The detection unit 2 detects the pressure of the airbag and outputs a signal indicating the detection result to the control unit 107. The pressure of the airbag detected by the detection unit 2 is, for example, the pressing force received by the airbag, the internal pressure (air pressure) of the airbag, and the stress acting on the main body part of the airbag. Further, the pressing force received by the airbag is the pressing force received by the airbag from the subject U side when the airbag comes into contact with the subject U, in other words, the reaction force of the pressing force applied by the airbag to the subject U.

[0034] Specifically, the detection unit 2 detects the pressure of the airbag among the airbags included in the airbag group 1084 that has a gap from the treatment site of the subject U at the start of treatment. In other words, the detection unit 2 detects the pressure of the airbag that needs to be in contact with the subject U before the start of treatment. The airbag that requires contact detection is preferably a welded airbag, which is a bag body in which the outer edges of a pair of overlapping base materials are thermally welded. However, this example does not exclude the configuration in which the airbag whose pressure is detected by the detection unit 2 is a blow-molded airbag.

[0035] In addition, as the airbag that requires contact detection before the start of treatment as described above, for example, airbags for treating the buttocks, thighs, shoulders, upper arms, forearms, hands, feet, lower legs Ua, etc. of the subject U can be cited.

[0036] Airbags for treating the left and right side parts of the buttocks and the left and right side parts of the thighs of the subject U are erected on both left and right sides of the seat part 101. Airbags for treating the shoulders and upper arms of the subject U are arranged in the side treatment part 1024 of the backrest part 102. Airbags for treating the forearms and hands, etc. are arranged in the armrest part 104 to treat the forearms and hands, etc. of the subject U. The airbag 1 for treating the feet and lower legs Ua of the subject U (see FIGS. 3A to 3B described later) is arranged on the ottoman 105.

[0037] Hereinafter, contact detection of the airbag 1 arranged on the ottoman 105 and treating the lower leg Ua will be taken as an example for explanation. Note that the detection unit 2 can similarly detect the pressure of other airbags that require contact detection.

[0038] When treatment is performed with the airbag 1, the detection unit 2 detects the pressure of the airbag 1. When performing treatment with the airbag 1, the control unit 107 monitors the pressure of the airbag 1 based on the detection result of the detection unit 2. For example, the calculation unit 31 calculates the rate of change of the pressure of the airbag 1 based on the detection result of the detection unit 2. In particular, the calculation unit 31 calculates the rate of increase in the pressure of the airbag 1 (the amount of increase in pressure per unit time). The determination unit 32 determines the presence or absence of contact of the airbag 1 with the subject U based on the detection result of the detection unit 2.

[0039] When the determination unit 32 determines that there is contact, the control unit 107 of the massage machine 100 starts treatment with the airbag 1.

[0040] In this way, the massage machine 100 can determine whether or not the airbag 1 has come into contact with the subject U based on the detection result of the detection unit 2, for example, before the start of treatment with the airbag 1, and can determine whether or not to start treatment based on the determination result. Therefore, the massage machine 100 can surely bring the airbag 1 into contact with the treatment site with respect to the subject U at the start of treatment regardless of the physique of the subject U. Thus, even if the subject U is small or slender, the subject U can receive sufficient treatment with the airbag 1. In other words, the subject U can receive treatment with a massage intensity suitable for his / her physique.

[0041] Also, preferably, the determination unit 32 determines the presence or absence of contact based on the rate of increase in the pressure of the airbag 1. For example, when the rate of increase in pressure becomes equal to or higher than the threshold value, the determination unit 32 determines that the airbag 1 has come into contact with the treatment site of the subject U.

[0042] In this way, when the airbag 1 can sufficiently press the treatment site, the determination unit 32 determines that there is contact, and the control unit 107 can start the treatment by the airbag 1. In other words, when the airbag 1 cannot sufficiently press the treatment site (when the airbag 1 lightly contacts the treatment site), the determination unit 32 can determine that there is no contact. Therefore, even if the subject U is small or slender, the massage machine 100 can start sufficient treatment by the airbag 1 in a state where the contact between the airbag 1 and the treatment site is reliably detected.

[0043] In addition, the setting unit 33 sets the treatment intensity. For example, the setting unit 33 sets a reference value for the treatment intensity of the airbag 1 for the subject U based on the pressure of the airbag 1 when the determination unit 32 determines that there is contact.

[0044] In this way, the massage machine 100 can set a reference value for the treatment intensity of the airbag 1 based on the pressure of the airbag 1 when it contacts the subject U. For example, the massage machine can set the pressure of the airbag 1 at the time of contact as the weakest level, for example, as a treatment intensity at a weak level.

[0045] At this time, the storage unit 1062 stores the pressure of the airbag 1 when the determination unit 32 determines that there is contact, linked to the subject information for identifying the therapist and the reference value for the treatment intensity for the subject U. That is, the storage unit 1062 stores the treatment intensity information linked to the treatment intensity information. Thereby, when the subject U is specified by an operation input, the control unit 107 of the massage machine 100 performs a treatment operation of the airbag 1 on the subject U with a treatment intensity based on the reference value.

[0046] In this way, the massage machine 100 does not need to detect the contact between the two every time it performs treatment on the subject U with the airbag 1. That is, once the massage machine 100 detects the contact between the airbag 1 and the treatment site of the subject U, thereafter, by specifying the subject U by an operation input, it can start the treatment of the airbag without performing the detection of contact.

[0047] However, when the massage machine 100 is commanded to re-detect the contact of the airbag 1 with the treatment site of the patient U by means of operation input or the like, the control unit 107 re-performs the determination operation of the contact and can re-set the reference value of the treatment intensity of the airbag 1. At this time, the storage unit 1062 updates and stores the treatment intensity information associated with the patient information of the patient U.

[0048] <1-4. Detection unit 2> Next, the detection unit 2 includes at least one of a piezoelectric element 21, an internal pressure sensor 22, and a stress sensor 23, and in this embodiment, it has one of these (for example, the internal pressure sensor 22). FIG. 3A is a schematic diagram showing an arrangement example of the piezoelectric element 21. FIG. 3B is a schematic diagram showing an arrangement example of the internal pressure sensor 22. FIG. 3C is a schematic diagram showing an arrangement example of the stress sensor 23.

[0049] Note that FIGS. 3A to 3C are views of the airbag 1a (see FIG. 1) among the plurality of airbags 1 arranged in the ottoman 105 from above. Also, FIGS. 3A to 3C omit the exterior such as covers and cushioning materials arranged on the surfaces of each part of the massage machine 100 for easy viewing of the main part.

[0050] The piezoelectric element 21 is arranged, for example, on the surface of the airbag 1a on the treatment site side as shown in FIG. 3A, and detects the contact with the treatment site by the piezoelectric effect. In FIG. 3A, the treatment site is the lower leg Ua of the patient U.

[0051] In this way, based on the presence or absence of pressure on the surface of the airbag 1a on the side of the treatment site (for example, the lower leg Ua in Fig. 3A), the contact between the airbag 1a and the treatment site of the subject U can be detected. When the airbag 1a is inflated during treatment and does not contact the treatment site, the surface of the airbag 1a on the treatment site side is not pressed, so the piezoelectric element 21 does not detect pressure. Therefore, the determination unit 32 determines that there is no contact. On the other hand, when the inflated airbag 1a contacts the treatment site, the surface of the airbag 1a on the treatment site side is pressed, so the piezoelectric element 21 detects pressure. Therefore, the determination unit 32 determines that there is contact, and the control unit 107 starts the treatment using the airbag 1a.

[0052] The internal pressure sensor 22 detects the internal pressure of the airbag 1a. The internal pressure sensor 22 is arranged inside the airbag 1a, as shown by the hatching surrounded by the solid line in Fig. 3B, for example. In Fig. 3B, the internal pressure sensor 22 in the airbag 1a is arranged on the inner surface of the part of the main body of the airbag 1a on the side of the subject U. However, it is not limited to this example, and the internal pressure sensor 22 in the airbag 1a may be arranged other than on the inner surface of the part of the main body of the airbag 1a on the side of the subject U, for example, on the inner surface of the part of the main body of the airbag 1a on the side opposite to the subject U. Alternatively, the internal pressure sensor 22 may be arranged in the air supply pipe 12 connecting the air supply port 11 of the airbag 1a and the air pump 1082, as shown by the hatching surrounded by the solid line in Fig. 3B. In the latter case, the control unit 107 detects the internal pressure of the air supply pipe 12 as the internal pressure of the airbag 1a. The material of the air supply pipe 12 is, for example, synthetic resin. However, it is not limited to this example, and the material of the air supply pipe 12 may be any material having flexibility. That is, preferably, the air supply pipe 12 is bendable.

[0053] In this way, the determination unit 32 can detect the contact between the airbag 1a and the treatment site (for example, the lower leg Ua in Fig. 3B) of the subject U based on the internal pressure of the airbag 1a. Also, the internal pressure sensor 22 can be arranged inside the airbag 1a or in the air supply pipe 12 connected to the airbag 1a. Therefore, the internal pressure sensor 22 can be arranged compactly.

[0054] The stress sensor 23 detects the stress acting on the airbag 1a. A strain gauge or the like can be adopted for the stress sensor 23. As shown in FIG. 3C for example, the stress sensor 23 is disposed on the part of the main body portion of the airbag 1a on the side of the subject U. At this time, as shown by the hatching surrounded by the solid line in FIG. 3C, the stress sensor 23 is disposed on the inner surface of the part. Alternatively, as shown by the hatching surrounded by the broken line in FIG. 3C, the stress sensor 23 may be disposed on the outer surface of the part. Or, without being limited to the above examples, the stress sensor 23 may be disposed on the inner surface or the outer surface of the part of the main body portion of the airbag 1a on the side opposite to the subject U.

[0055] In this way, the determination unit 32 can detect the contact between the airbag 1a and the treated part of the subject U (for example, the lower leg part Ua in FIG. 3C) based on the stress acting on the main body portion of the airbag 1a. Further, by disposing it on the inner surface of the main body portion, the stress sensor 23 can be disposed compactly.

[0056] <2. Remarks> The embodiments of the present invention have been described above. It should be noted that the above embodiments are examples, and various modifications are possible for each component and each combination of processes, and it is understood by those skilled in the art that they are within the scope of the present invention.

[0057] For example, in the above embodiment, regarding the pressure detection of the airbag included in the airbag group 1084, the airbag 1 disposed on the Ottman 105 has been described as an example. However, without being limited to this example, the pressure detection can be similarly performed for other airbags included in the airbag group 1084.

[0058] Also, in the above embodiment, the chair-type massager 100 has been described as an example. However, without being limited to this example, the present invention can be applied to massagers other than the chair-type massager 100 as long as it is configured to perform treatment by an airbag.

[0059] <3. Summary> Hereinafter, the embodiments described so far will be summarized.

[0060] For example, the massage machine 100 disclosed in this specification includes a detection unit 2 that detects the pressure of the airbag 1, and a determination unit 32 that determines whether the airbag 1 contacts the subject based on the detection result of the detection unit 2. It is provided with and when the determination unit 32 determines that there is contact, it is configured to start treatment with the airbag 1 (first configuration).

[0061] The massage machine 100 of the above first configuration further includes a calculation unit that calculates the pressure increase rate of the airbag, and the determination unit may be configured to determine the presence or absence of contact based on the pressure increase rate (second configuration).

[0062] In addition, the massage machine 100 of the above first or second configuration further includes a setting unit 33 that sets the treatment intensity, and the setting unit 33 may be configured to set a reference value for the treatment intensity of the airbag 1 for the subject based on the pressure of the airbag 1 when the determination unit 32 determines that there is contact (third configuration).

[0063] In addition, the massage machine 100 of the above third configuration further includes an input unit 1061 that receives an operation input, and a storage unit 1062 that associates and stores the pressure of the airbag 1 when the determination unit 32 determines that there is contact with the subject information for identifying the subject and the reference value for the treatment intensity for the subject. It is further provided with and when the subject is specified by an operation input, it may be configured to perform a treatment operation of the airbag 1 on the subject with a treatment intensity based on the reference value (fourth configuration).

[0064] Further, the massage machine 100 having any one of the first to fourth configurations may be configured such that the detection unit 2 has an internal pressure sensor 22 that detects the internal pressure of the airbag 1 (a fifth configuration).

[0065] Further, the massage machine 100 having any one of the first to fifth configurations may be configured such that the detection unit 2 includes a stress sensor 23 that detects the stress acting on the airbag 1 (a sixth configuration).

Explanation of Reference Numerals

[0066] 100 (chair type) massage machine 101 Seat part 102 Backrest part 1021 Pillow part 1022 Treatment unit 1023 Guide rail 1024 Side treatment part 103 Base part 104 Armrest part 105 Ottoman 1061 Input part 1062 Storage part 107 Control part 1081 Actuator group 1082 Pump 1083 Solenoid valve group 1084 Airbag group 1 Airbag 11 Air supply port 12 Air supply pipe 2 Detection unit 21 Piezoelectric element 22 Internal pressure sensor 23 Stress sensor 31 Calculation unit 32 Judgment unit 33 Setting unit Ja Backrest rotation axis Jb Ottoman rotation axis U Patient

Claims

1. A detection unit that detects the pressure of the airbag; A determination unit that determines whether the airbag has come into contact with the subject to be treated based on the detection result of the detection unit; and A massage machine that starts treatment with the airbag when the determination unit determines that there is contact.

2. Further comprising a calculation unit that calculates the rate of increase in the pressure of the airbag; The determination unit determines the presence or absence of contact based on the rate of increase in pressure. The massage machine according to claim 1.

3. Further comprising a setting unit that sets the treatment intensity; The setting unit sets a reference value for the treatment intensity of the airbag for the subject to be treated based on the pressure of the airbag when the determination unit determines that there is contact. The massage machine according to claim 1 or claim 2.

4. An input unit that receives an operation input; A storage unit that stores the pressure of the airbag when the determination unit determines that there is contact, in association with subject information for identifying the subject to be treated and the reference value for the treatment intensity for the subject to be treated; and When the subject to be treated is specified by an operation input, the massage machine according to claim 3 performs a treatment operation on the subject to be treated with a treatment intensity based on the reference value.

5. The detection unit has an internal pressure sensor that detects the internal pressure of the airbag. The massage machine according to claim 1 or claim 2.

6. The detection unit includes a stress sensor that detects the stress acting on the airbag. The massage machine according to claim 1 or claim 2.

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