Treatment applying piece and massage machine

Abstract

A treatment member (1) of a massage machine (100) performs treatment on a treatment-receiving part of a treatment-receiving person. The treatment piece (1) is provided with an abutting member (11) and a conversion mechanism (12). The abutting member (11) is capable of abutting against, approaching, and separating from the treated part with a predetermined pressing force. When the treatment piece (1) performs treatment on the treated part, the conversion mechanism (12) converts the force (Fr) received by the abutting member (11) from the treated part into the rotating force of the abutting member (11) rotating around the rotating shaft (Jc). The rotating shaft (Jc) extends from one of the part to be treated and the abutting member (11) to the other.

Description

Cross - reference to related applications

[0001] This application claims priority based on Japanese Patent Application No. 2023 - 216114 filed on December 21, 2023. The entire disclosure thereof is incorporated herein by reference and made a part of this specification. Technical field

[0002] The present invention relates to a treatment member and a massage machine using the treatment member. Background art

[0003] In conventional massage machines, when increasing treatment actions, it is necessary to increase drive sources according to each treatment action.

[0004] Note that, as an example of the prior art related to the present invention, a load - preventing mechanism for a treatment member of a massage device that clamps and kneads an affected part of a subject is disclosed in Japanese Patent Laid - Open Publication No. 1997 - 299429. When the pressing force at the contact portion of the treatment member for treating the affected part becomes equal to or greater than a specified value, this load - preventing mechanism causes the arm portion connected to the contact portion to retract in a direction away from the subject, removing the pressing force. Summary of the invention

[0005] Problems to be solved by the invention

[0006] However, if the number of drive sources is increased, the cost of the massage machine increases and its productivity decreases. In addition, the space required to arrange the drive sources and the treatment mechanism increases, so it is difficult to secure such space. Moreover, if space is secured, the massage machine tends to be large - sized and difficult to make compact. Therefore, a technique is sought that enables a treatment member to perform a variety of different actions while suppressing an increase in drive sources.

[0007] In view of the above situation, an object of the present invention is to provide a treatment member that performs a variety of different actions using the same drive source and a massage machine using the treatment member.

[0008] Means for solving the problems

[0009] To achieve the above object, a treatment member according to one aspect of the present invention treats a treated part of a subject. The treatment member includes an abutting member and a conversion mechanism. The abutting member can abut against, approach, and separate from the treated part with a specified pressing force. When the treatment member treats the treated part, the conversion mechanism converts the force received by the abutting member from the treated part into a rotational force that causes the abutting member to rotate about a rotation axis. The rotation axis extends from one of the treated part and the abutting member toward the other.

[0010] To achieve the above object, a massage machine according to one aspect of the present invention includes the above-mentioned treatment member and a drive unit. The drive unit moves the treatment member in the axial direction.

[0011] Further features and advantages of the present invention will be further clarified by the embodiments shown below.

[0012] Effect of the Invention

[0013] According to the present invention, it is possible to provide a treatment member that performs a variety of different actions using the same drive source and a massage machine using the treatment member. Description of the Drawings

[0014] Figure 1 It is a schematic perspective view of a chair-type massage machine.

[0015] Figure 2 It is a block diagram of a control system for controlling the operation of the chair-type massage machine.

[0016] Figure 3 It is a perspective view showing a structural example of the treatment member of the first embodiment.

[0017] Figure 4 It is an exploded perspective view of the treatment member of the first embodiment.

[0018] Figure 5 It is a cross-sectional view of the treatment member of the first embodiment.

[0019] Figure 6 It is a cross-sectional view showing a structural example of the treatment member of a modification of the first embodiment.

[0020] Figure 7 It is a perspective view showing a structural example of the treatment member of the second embodiment.

[0021] Figure 8 It is a perspective view showing a structural example of the treatment member of the third embodiment.

[0022] Figure 9 It is a perspective view showing another structural example of the treatment member of the third embodiment.

[0023] Description of Reference Numerals:

[0024] 100… (Chair-type) massage machine, 101… Seat part, 102… Backrest part, 1021… Pillow part, 1022… Treatment unit, 1023… Guide rail, 103… Base part, 104… Elbow rest part, 105… Footrest, 1061… Input part, 1062… Storage part, 107… Control part, 1081… Actuator group, 1082… Air pump, 1083… Solenoid valve group, 1084… Airbag group, 1, 1a, 1b… Treatment parts, 11… Contact member, 111… Base part, 112… Extension part, 113… Protrusion part, 115… Plate-like part, 116… Protrusion, 12… Conversion mechanism, 121… Sliding member, 1211… Cylindrical part, 1212… Internal thread part, 1213… Flange part, 122… Support member, 1221… Rod part, 1222… External thread part, 1223… Flange part, 13… Elastic member, 14… Adjustment mechanism, 2… Driving part, Jc… Rotation axis, Ja… Backrest rotation axis, Jb… Footrest rotation axis. Detailed implementation mode

[0025] Hereinafter, embodiments of the present invention will be described with reference to the drawings. It should be noted that, in the following description, "trunk" refers to the central part of the body other than the head, neck, and limbs. "Thigh part" refers to the part from the hip joint to the knee joint. "Hip joint" refers to the joint part connecting the pelvis and the thigh bone (i.e., the femur). "Lower leg part" refers to the part from the knee joint to the ankle. "Foot part" refers to the part from the ankle to the toe tip (i.e., the fingertip). "Sole" is the lower surface of the foot (the sole of the foot), which is the part that contacts the ground or the floor surface when standing barefoot, etc.

[0026] <1. First embodiment>

[0027] Figure 1 is a perspective view of the chair-type massage machine 100. Figure 2 is a block diagram showing a control system for controlling the operation of the chair-type massage machine 100. It should be noted that hereinafter, the chair-type massage machine 100 may sometimes be referred to as "massage machine 100".

[0028] <1-1. Massage machine 100>

[0029] The massage machine 100 includes a seat part 101, a backrest 102, a pair of left and right base parts 103, a pair of left and right elbow rest parts 104, and a footrest 105.

[0030] The subject to be treated sits on the seat part 101. The seat part 101 supports the buttocks and thighs of the subject to be treated. It should be noted that treatment components for treating the lower part of the buttocks and the lower part of the thighs of the subject to be treated can also be arranged on the upper surface of the seat part 101. In addition, treatment components for treating the lateral parts in the left - right direction of the buttocks and the lateral parts in the left - right direction of the thighs of the subject to be treated can also be arranged on the wall parts 1011 erected at the left - right direction ends of the seat part 101.

[0031] The backrest 102 is erected relative to the seat part 101 and supports the head, trunk (such as shoulders, waist and back) of the subject to be treated. In the present embodiment, the backrest 102 is connected to the rear end of the seat part 101. The backrest 102 can rotate about a backrest rotation axis Ja extending in the left - right direction with respect to the seat part 101. For example, the backrest 102 can rotate backward from the erected state and recline (lie down). In addition, the backrest 102 can rotate forward from the reclined state and erect.

[0032] As Figure 1 shown, a headrest 1021 is arranged on the upper part of the backrest 102. The headrest 1021 supports the head, neck, etc. of the subject to be treated. In addition, a treatment unit 1022 and a pair of left - right guide rails 1023 are built in the backrest 102. The treatment unit 1022 can treat the trunk and neck of the subject to be treated. The guide rails 1023 extend along the backrest 102 in the length direction of the backrest 102. It should be noted that the length direction is, for example, the direction from one of the rear end of the seat part 101 and the headrest 1021 to the other. The guide rails 1023 guide the treatment unit 1022 along the length direction. Thereby, the treatment unit 1022 can move up and down along the length direction of the backrest 102 to treat the back, waist, etc. of the subject to be treated.

[0033] In addition, treatment components for treating the rear part of the body (such as the rear part of the shoulders, the upper part of the back, the rear part of the waist) can be arranged on the backrest 102, and treatment components for treating the pelvic part, etc. by pressing the rear part of the buttocks can also be arranged.

[0034] The base part 103 is erected on both sides in the left - right direction of the seat part 101 and supports the elbow rest parts 104.

[0035] The elbow rest parts 104 support the forearm and hand of the subject to be treated. The pair of left - right elbow rest parts 104 are in a bilaterally symmetric shape. It should be noted that treatment components for treating the forearm and hand of the subject to be treated can also be arranged on each elbow rest part 104.

[0036] The footrest 105 is disposed near the front end of the seat portion 101 and accommodates the shank and feet of the patient. The footrest 105 can rotate about the footrest rotation axis Jb. The footrest rotation axis Jb passes through the front end of the seat portion 101 and the upper end of the footrest 105 and extends in the left-right direction. In the present embodiment, the upper end of the footrest 105 is supported so as to be rotatable relative to the front end of the seat portion 101. The footrest 105 is provided with treatment members for treating the shank, feet, and soles of the patient.

[0037] <1-2. Control System of the Massage Machine 100>

[0038] Next, refer to Figure 2 to describe a structural example of the control system of the massage machine 100. The massage machine 100 further includes an input unit 1061, a storage unit 1062, a control unit 107, an actuator group 1081, an air pump 1082, and a solenoid valve group 1083.

[0039] 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 treatment modes, adjustment of treatment intensity, etc. The input unit 1061 is Figure 1 wired to the control unit 107, but may also be wirelessly connected to the control unit 107. The input unit 1061 can be assembled and disassembled relative to a bracket (reference numeral omitted). The bracket is fixed to the elbow rest portion 104 disposed on the seat portion 101.

[0040] The storage unit 1062 is a non-temporary storage medium that retains the stored information even when the power supply is stopped. The storage unit 1062 stores, for example, programs and data required for the control unit 107 to control the operation of the massage machine 100.

[0041] The control unit 107 is disposed, for example, below the seat portion 101 and controls each part of the massage machine 100 based on signals output from the input unit 1061, etc. For example, the control unit 107 controls the actuator group 1081, the air pump 1082, the solenoid valve group 1083, etc. In addition, the control unit 107 also controls a drive unit 2 that drives a treatment member 1 described later.

[0042] The actuator group 1081 includes a plurality of actuators. For example, the actuator group 1081 includes a backrest actuator for rotating the backrest 102, a footrest actuator for rotating the footrest 105, etc.

[0043] The solenoid valve group 1083 includes a plurality of solenoid valves. A part of the plurality of solenoid valves is arranged between the air pump 1082 and the airbag group 1084 provided in the massager 100 to switch the connection / cutoff therebetween. It should be noted that the airbag group 1084 includes airbags arranged in various parts of the massager 100 (such as the footrest 105). In addition, another part of the plurality of solenoid valves is arranged between the airbag group 1084 and the outside to switch the connection / cutoff therebetween.

[0044] For example, when the air pump 1082 is connected to the airbag through a part of the solenoid valves, air is supplied from the air pump 1082 to the airbag via the solenoid valves, thereby causing the airbag to expand. On the other hand, when the outside is connected to the airbag through the operation of another part of the solenoid valves, the air in the airbag is released to the outside via the solenoid valves. Thus, the airbag contracts. In addition, when the airbag is neither connected to the air pump 1082 nor connected to the outside through the operation of each solenoid valve, the amount of air in the airbag is maintained.

[0045] <1-3. Treatment member 1>

[0046] Next, the massager 100 further includes a treatment member 1 and a drive unit 2 (see Figure 2 ). Figure 3 FIG. is a perspective view showing a structural example of the treatment member 1 of the first embodiment. Figure 4 FIG. is an exploded perspective view of the treatment member 1. Figure 5 FIG. is a cross-sectional view of the treatment member 1.

[0047] The treatment member 1 performs treatment on the treatment site of the person to be treated. For example, the treatment member 1 is arranged on at least any one of the seat portion 101, the backrest portion 102, the treatment unit 1022, the elbow rest portion 104, and the footrest 105.

[0048] The treatment member 1 includes an abutting member 11 and a conversion mechanism 12. The abutting member 11 can abut against the treatment site with a specified pressing force and can approach and separate in the axial direction. When the treatment member 1 performs treatment on the treatment site, the conversion mechanism 12 converts the force (hereinafter referred to as the reaction force Fr) received by the abutting member 11 from the treatment site into a rotational force for the abutting member 11 to rotate about the rotation axis Jc. It should be noted that the rotation axis Jc extends from one of the treatment site and the abutting member 11 toward the other.

[0049] In this way, the treatment member 1 can, for example, press the treatment site by means of the force pressed by the treatment site and use the abutting member 11 to press the treatment site. Moreover, the abutting member 11 can rotate about the rotation axis Jc in a state of pressing the treatment site by the rotational force converted by the conversion mechanism 12. That is, the treatment member 1 can perform a pressing action and also perform a new treatment action (such as kneading treatment) using the rotation of the abutting member 11. Therefore, without adding a drive source, it is possible to make the treatment member 1 perform a variety of different actions using the same drive source.

[0050] In addition, the treatment member 1 further includes an elastic member 13. The elastic member 13 applies an elastic force Fe toward the treatment site to the abutting member 11. Since the force received by the abutting member 11 from the treatment site, that is, the reaction force Fr, and the elastic force Fe generated by the elastic member 13 are in opposite directions, the treatment member 1 can suppress the decrease in the pressing strength corresponding to the elastic force Fe applied by the elastic member 13. Therefore, the treatment member 1 can rotate the abutting member 11 while maintaining a specified pressing strength. In addition, even if the abutting member 11 retreats relative to the conversion mechanism 12 due to the force pressing on the treatment site, it can return to the original position in the front by means of the elastic force Fe when the force is released.

[0051] Preferably, when the treatment member 1 treats the treatment site, if the force (reaction force Fr) applied by the treatment site to the abutting member 11 exceeds the elastic force Fe (Fr > Fe) applied by the elastic member 13, the conversion mechanism 12 converts a force ΔF (= Fr - Fe) corresponding to the amount exceeding the elastic force Fe into the rotational force of the abutting member 11. In this way, when the reaction force Fr received by the abutting member 11 from the treatment site is less than or equal to the elastic force Fe (Fr ≤ Fe), the treatment member 1 only performs the pressing of the treatment site. In addition, if the reaction force Fr exceeds the elastic force Fe (Fr > Fe), the treatment member 1 can start kneading treatment based on the rotation of the abutting member 11 in addition to pressing. In addition, the treatment member 1 can maintain the pressing of the treatment site with a force corresponding to the elastic force Fe applied from the elastic member 13. Therefore, even if the abutting member 11 rotates, the treatment member 1 can prevent the decrease in the pressing strength. Thus, it is possible to perform treatment based on pressing and kneading under a specified pressure regardless of the physical differences of the treatment provider caused by individual differences. However, this example does not exclude a structure in which the reaction force Fr is converted into the rotational force of the abutting member 11 even when Fr ≤ Fe.

[0052] As Figures 3 to 5 shown, the conversion mechanism 12 includes a slider 121 and a support member 122.

[0053] The slider 121 has a cylindrical portion 1211, an internal thread portion 1212, and a flange portion 1213. The cylindrical portion 1211 extends axially. The internal thread portion 1212 is disposed on the inner circumferential surface of the cylindrical portion 1211. The flange portion 1213 extends radially outward from the outer circumferential surface of the cylindrical portion 1211 and extends circumferentially.

[0054] The support member 122 has a rod portion 1221, an external thread portion 1222, and a flange portion 1223. The rod portion 1221 extends axially. The external thread portion 1222 is disposed on the outer circumferential surface of the rod portion 1221 and is screwed with the internal thread portion 1212. The flange portion 1223 extends radially outward from the rear end portion (the other axial end portion) of the rod portion 1221 and extends circumferentially.

[0055] However, it is not limited to Figures 3 to 5 the illustration of, the slider 121 may have a rod portion 1221, an external thread portion 1222, and a flange portion 1223, and the support member 122 may have a cylindrical portion 1211, an internal thread portion 1212, and a flange portion 1213.

[0056] That is, it is sufficient that one of the slider 121 and the support member 122 has a cylindrical portion 1211, an internal thread portion 1212 (and a flange portion 1213). In addition, it is sufficient that the other of the slider 121 and the support member 122 has a rod portion 1221, an external thread portion 1222 (and a flange portion 1223).

[0057] The slider 121 can move axially along the rotation axis Jc together with the abutting member 11. In this way, only by the force of pressing the support member 122 against the treatment site, the pressing action and the kneading action based on the abutting member 11 can be implemented. For example, the abutting member 11 presses the treatment site by the force of pressing against the treatment site. On the other hand, a reaction force Fr is received from the treatment site. By this reaction force Fr, the abutting member 11 and the slider 121 rotate along the thread teeth of the mutually screwed external thread portion 1222 and internal thread portion 1212 while retreating (i.e., moving to the side opposite to the treatment site in the axial direction).

[0058] In addition, an elastic member 13 is disposed between the flange portion 1213 of the slider 121 and the flange portion 1223 of the support member 122 in the axial direction. In the present embodiment, the elastic member 13 is a spring coil, which is disposed at a position radially outside the rod portion 1221 and the external thread portion 1222 and surrounds them. In other words, the rod portion 1221 and the external thread portion 1222 pass through the spring coil. In the axial direction, the front end portion (one axial end portion) of the spring coil abuts against the rear surface (the other axial end surface) of the flange portion 1213, and the rear end portion (the other axial end portion) of the spring coil abuts against the front surface (one axial end surface) of the flange portion 1223.

[0059] However, not limited to the above examples, as long as the elastic member 13 has high elasticity in the axial direction parallel to the rotation axis Jc, it can also be a structure other than a spring coil. For example, the elastic member 13 can also be a leaf spring, a cylindrical rubber, etc.

[0060] Next, the drive unit 2 moves the treatment member 1 in the axial direction. It should be noted that the axial direction is the direction in which the treatment member 1 (especially the abutting member 11) approaches and separates from the treatment site. In this way, the massager 100 can use the drive unit 2 as a drive source to perform pressing treatment and kneading treatment on the person to be treated. Therefore, the massager 100 can use the same drive source to make the treatment member 1 perform a variety of different actions.

[0061] The drive unit 2 is controlled by the control unit 107. The drive unit 2 can be a ball screw mechanism or an actuator.

[0062] Alternatively, the drive unit 2 can also be an airbag. The airbag moves the treatment member 1 in the axial direction corresponding to its expansion and contraction. In addition, the airbag is included in the airbag group 1084. In this way, for the massager 100, for example, the treatment member 1 can be arranged on the surface of the airbag on the treatment site side. Therefore, through the synergistic effect of the airbag and the treatment member 1, their treatment effect can be improved.

[0063] <1-4. Variation of the First Embodiment>

[0064] Next, with reference to Figure 6 the variation of the first embodiment will be described. Figure 6 It is a cross-sectional view showing a structural example of the treatment member 1 of the variation of the first embodiment.

[0065] In the variation, as Figure 6 shown, the treatment member 1 further includes an adjustment mechanism 14. The adjustment mechanism 14 adjusts the elastic force Fe of the elastic member 13. The adjustment mechanism 14 is, for example, an actuator that can expand and contract in the axial direction and is controlled by the control unit 107. In the axial direction, the adjustment mechanism 14 is arranged between the rear end portion of the elastic member 13 and the flange portion 1223 of the support member 122, and the rear end portion of the elastic member 13 moves forward and backward corresponding to the contraction of the adjustment mechanism 14 itself.

[0066] For example, when the rear end portion of the elastic member 13 moves forward (in one axial direction) due to the elongation of the adjustment mechanism 14, the elastic member 13 contracts in the axial direction, so the elastic force Fe applied to the abutting member 11 (and the sliding member 121) becomes stronger. On the other hand, when the rear end portion of the elastic member 13 moves backward (in the other axial direction) due to the contraction of the adjustment mechanism 14, the elastic member 13 elongates in the axial direction, so the elastic force Fe applied to the abutting member 11 (and the sliding member 121) becomes weaker.

[0067] By adjusting the elastic force Fe, the treatment member 1 can adjust the timing of starting the treatment based on the rotation of the abutting member 11. In addition, the treatment member 1 can adjust the balance between the pressing strength of the abutting member 11 and the kneading treatment strength. For example, by weakening the elastic force Fe, the treatment strength of the latter can be enhanced. In addition, by strengthening the elastic force Fe, the treatment strength of the latter can be weakened.

[0068] <2. Second Embodiment>

[0069] Next, with reference to Figure 7 the second embodiment will be described. Figure 7 FIG. is a perspective view showing a structural example of the treatment member 1a of the second embodiment. Hereinafter, regarding the second embodiment, the structures different from those of the first embodiment and its modified examples will be described. In addition, the same reference numerals are given to the constituent elements that are the same as those of the first embodiment and its modified examples, and the description of the structures that are the same as those of the first embodiment and its modified examples may be omitted.

[0070] In the second embodiment, the abutting member 11 has a base portion 111, an extension portion 112, and a protruding portion 113. The base portion 111 is disposed at the front end portion (axial one end portion) of the conversion mechanism 12 (for example, the sliding member 121). The rotation shaft Jc passes through the central portion of the base portion 111. The base portion 111 can rotate about the rotation shaft Jc. The extension portion 112 extends radially outward from the front end portion (axial one end portion) of the base portion 111. The protruding portion 113 protrudes forward (in one axial direction) from the radially outer end portion of the extension portion 112. In addition, the protruding portion 113 is disposed at a position radially outside the rotation shaft Jc and abuts against the treatment site. In this way, when treating the treatment site, the treatment member 1a can cause the protruding portion 113 abutting against the treatment site to perform a circular motion about the rotation shaft Jc. Therefore, the treatment member 1a can perform a large-range kneading treatment while performing a pressing treatment.

[0071] <3. Third Embodiment>

[0072] Next, with reference to Figure 8 and Figure 9 the third embodiment will be described. Figure 8 FIG. is a perspective view showing a structural example of the treatment member 1b of the third embodiment. Figure 9 FIG. is a perspective view showing another structural example of the treatment member 1b of the third embodiment. Hereinafter, regarding the third embodiment, the structures different from those of the first embodiment and its modified examples, and the second embodiment will be described. In addition, the same reference numerals are given to the constituent elements that are the same as those of the first embodiment and its modified examples, and the second embodiment, and the description of the structures that are the same as those of the first embodiment and its modified examples, and the second embodiment may be omitted.

[0073] In the third embodiment, the abutting member 11 has a plate-like portion 115 in addition to the base portion 111. As described above, the base portion 111 is connected to the conversion mechanism 12 (for example, the slider 121), and is particularly connected to its front end portion (axial one end portion). The rotation shaft Jc passes through the central portion of the base portion 111. The base portion 111 can rotate about the rotation shaft Jc. The plate-like portion 115 extends radially outward from the front end portion of the base portion 111. It should be noted that the central portion of the plate-like portion 115 observed from the axial direction may be located on the rotation shaft Jc as shown in Figure 8 or may be offset radially outward from the rotation shaft Jc as shown in Figure 9 .

[0074] By bringing the plate-like portion 115 into contact with the treatment site, the contact area between the treatment member 1b and the treatment site can be enlarged. Therefore, the treatment member 1b can perform a treatment action as if using a human palm.

[0075] In addition, a plurality of protrusions 116 are arranged on the surface of the plate-like portion 115 on the treatment site side in the axial direction. Preferably, they are arranged along the outer edge portion of the plate-like portion 115 as shown in Figure 8 and Figure 9 . In this way, when the plate-like portion 115 comes into contact with the treatment site, the protrusions 116 sink into the treatment site. Therefore, the protrusions 116 can press and treat the deep part of the treatment site. And when the base portion 111 rotates, the treatment site can be kneaded efficiently. However, the above examples do not exclude the structure in which the plurality of protrusions 116 are not arranged along the outer edge portion of the plate-like portion 115, nor the structure in which the plurality of protrusions 116 are not arranged on the plate-like portion 115.

[0076] In addition, in the third embodiment, as shown in Figure 8 and Figure 9 , the massager 100 includes a pair of treatment members 1b. For example, the pair of treatment members 1b are arranged on the elbow rest portion 104 to treat the forearm portion and the hand portion of the person to be treated. Or, the pair of treatment members 1b are arranged on the footrest 105 to treat the calf portion and the foot portion of the person to be treated.

[0077] The abutting members 11 of the respective treatment members 1b are opposed to each other with a gap in the axial direction. In this way, treatment can be performed in a state where a part of the body of the person to be treated is sandwiched between the abutting members 11 of the pair of treatment members 1b. Therefore, the massager 100 can perform compressive treatment on the arm portion, leg portion, etc. of the person to be treated from both sides, for example.

[0078] However, Figure 8 and Figure 9The illustration does not exclude the structure where the treatment member 1b is not a pair. For example, a non-opposed unilateral treatment member 1b can also be arranged on the seat part 101, the backrest 102, the treatment unit 1022, etc.

[0079] <4. Remarks>

[0080] As described above, embodiments of the present invention have been described. It should be noted that those skilled in the art should understand that the above embodiments are illustrative, and various modifications can be made to the combination of each constituent element and each process, and all are within the scope of the present invention.

[0081] For example, as long as there is no particular contradiction, the above first embodiment and its modification examples, the second embodiment, and the third embodiment can be combined.

[0082] In addition, in the present disclosure, the present invention is applied to a chair-type massage machine. However, it is not limited to this illustration, and the present invention can also be applied to other than a chair-type massage machine. For example, it can also be applied to a simple massager, a leg massager, a fascia relaxation massage gun for peeling off adhesions of fascia, etc.

[0083] <5. Summary>

[0084] Hereinafter, a summary description will be given of the embodiments described so far.

[0085] For example, the treatment member 1 disclosed in this specification has the following structure (the first structure):

[0086] The treatment member 1 treats the treatment site of the person to be treated, wherein

[0087] The treatment member 1 includes:

[0088] A contact member 11 that can contact, approach, and separate from the treatment site with a predetermined pressing force; and

[0089] A conversion mechanism 12 that, when the treatment member 1 treats the treatment site, converts the force Fr received by the contact member 11 from the treatment site into a rotational force that causes the contact member 11 to rotate about a rotation axis Jc extending from one of the treatment site and the contact member 11 toward the other.

[0090] The treatment member 1 of the above first structure may also have the following structure (the second structure):

[0091] The treatment member 1 further includes an elastic member 13 that applies an elastic force Fe toward the treatment site to the contact member 11.

[0092] In addition, the treatment member 1 of the above second structure may also have the following structure (the third structure):

[0093] The elastic member 13 is a spring coil.

[0094] In addition, the treatment member 1 of the above-mentioned second or third structure may also be the following structure (fourth structure):

[0095] When the treatment member 1 treats the treated part, if the force Fr exerted by the treated part on the abutting member 11 exceeds the elastic force Fe exerted by the elastic member 13, the conversion mechanism 12 converts the force ΔF (=Fr - Fe) of the amount exceeding the elastic force Fe into the rotational force of the abutting member 11.

[0096] In addition, the treatment member 1 of any one of the above-mentioned second to fourth structures may also be the following structure (fifth structure):

[0097] The treatment member 1 further includes an adjustment mechanism 14 that adjusts the elastic force Fe of the elastic member 13.

[0098] In addition, the treatment member 1 (1a) of any one of the above-mentioned first to fifth structures may also be the following structure (sixth structure):

[0099] The abutting member 11 has a protruding portion 113 that is disposed radially outside the rotation axis Jc and abuts against the treated part.

[0100] In addition, the treatment member 1 (1b) of any one of the above-mentioned first to fifth structures may also be the following structure (seventh structure):

[0101] The abutting member 11 has:

[0102] a base portion 111 that is connected to the conversion mechanism 12; and

[0103] a plate-like portion 115 that extends radially outward from the front end portion of the base portion 111.

[0104] In addition, the treatment member 1 of any one of the above-mentioned first to seventh structures may also be the following structure (eighth structure):

[0105] The conversion mechanism 12 includes a sliding member 121 and a supporting member 122.

[0106] One of the sliding member 121 and the supporting member 122 has a cylindrical portion 1211 extending in the axial direction and an internal thread portion 1212 disposed on the inner peripheral surface of the cylindrical portion 1211.

[0107] The other of the sliding member 121 and the support member 122 has a rod portion 1221 extending in the axial direction and an external thread portion 1222 disposed on the outer peripheral surface of the rod portion 1221 and screwed with the internal thread portion 1212.

[0108] The sliding member 121 can move axially along the rotation axis Jc together with the abutting member 11.

[0109] In addition, the massage machine 100 disclosed in this specification may have the following structure (ninth structure):

[0110] The massage machine 100 includes:

[0111] The treatment member 1 of any one of the above first to eighth structures; and

[0112] The drive unit 2 that moves the treatment member 1 in the axial direction.

[0113] In addition, the massage machine 100 of the above ninth structure may also have the following structure (tenth structure):

[0114] There are a pair of the treatment members 1 (1b),

[0115] The abutting members 11 of each of the treatment members 1 (1b) are opposed to each other with a gap in the axial direction.

[0116] In addition, the massage machine 100 of the above ninth or tenth structure may also have the following structure (eleventh structure):

[0117] The drive unit 2 is an airbag that moves the treatment member 1 in the axial direction in response to expansion and contraction.

Claims

1. A treatment device for treating a treatment part of a person to be treated, wherein: The treatment element has: an abutting member capable of abutting, approaching, and separating from the treatment site with a predetermined pressing force; as well as A conversion mechanism converts the force received by the abutment member from the treated part into a rotational force causing the abutment member to rotate around a rotation axis extending from one of the treated part and the abutment member toward the other when the treatment piece treats the treated part.

2. The treatment member according to claim 1, wherein: The treatment tool further includes an elastic member that applies an elastic force toward the treatment site to the contact member.

3. The treatment member according to claim 2, wherein: The elastic member is a spring coil.

4. The treatment member according to claim 2 or claim 3, wherein: When the treatment member treats the treated area, if the force applied by the treated area to the contact member exceeds the elastic force applied by the elastic member, the conversion mechanism converts the force exceeding the elastic force into a rotational force of the contact member.

5. The treatment member according to any one of claims 2 to 4, wherein: The treatment tool further includes an adjustment mechanism that adjusts the elastic force of the elastic member.

6. The treatment member according to any one of claims 1 to 5, wherein: The contact member has a protrusion that is arranged radially outward of the rotation axis and that contacts the treatment site.

7. The treatment member according to any one of claims 1 to 5, wherein: The abutment member comprises: a base connected to the conversion mechanism; and The plate-shaped portion expands radially outward from the front end portion of the base portion.

8. The treatment member according to any one of claims 1 to 7, wherein: The conversion mechanism includes a slide and a support member. One of the sliding member and the supporting member includes a cylindrical portion extending in the axial direction and an internal thread portion arranged on an inner peripheral surface of the cylindrical portion. The other of the sliding member and the supporting member includes a rod portion extending in the axial direction and an external thread portion disposed on an outer peripheral surface of the rod portion and threadedly engaged with the internal thread portion. The slide is movable in the axial direction of the rotation shaft together with the abutment member.

9. A massage machine comprising: The treatment member according to any one of claims 1 to 8; and A driving part enables the treatment member to move in the axial direction.

10. The massage machine according to claim 9, wherein: The treatment piece is a pair. The contact members of the respective treatment elements are opposed to each other with a gap therebetween in the axial direction.

11. The massage machine according to claim 9 or claim 10, wherein: The driving unit is an air bag that moves the treatment member in the axial direction in accordance with expansion and contraction.

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