JP2018201834A - Massage machine - Google Patents

Abstract

To provide a massage machine for treating shoulders of a treated person by pressurization from above.SOLUTION: A massage machine includes: a seat part on which a treated person sits; a backrest part for supporting a back of the treated person sitting on the seat part; a base part 210 arranged in front of the backrest part; and shoulder treatment mechanisms 200 attached to the base part 210 so as to massage shoulders of the treated person in a state where the treated person is sitting on the seat part. Each shoulder treatment mechanism 200 includes: a driver part attached to the base part 210 and having an output shaft 235 to be rotated by energization; and a treatment element 261 for pressurizing the shoulder of the treated person from above. The treatment element 261 is rocked in a vertical direction in response to rotation of the output shaft 235 so as to treat the shoulders of the treated person.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a massage machine.

  2. Description of the Related Art Conventionally, massage machines that perform treatment by pinching and hitting the shoulder of a user are known. For example, in Patent Document 1, there is a shoulder squeezing means that sandwiches the left and right shoulders of a user who is in a supine position with a pair of squeezing hands, and the pair of squeezing hands move the shoulders back and forth. A massage machine (a stationary massage device) having a massage mechanism for realizing the above is disclosed.

  In Patent Literature 2, the first arm and the second arm that sandwich the shoulder of the user at the contact portion at the tip by being arranged at a distance and moving away from each other, and the distance between the first arm and the second arm A rotating shaft rotatably attached to the first and second arms to change the angle, and at least one of the first and second arms is attached eccentrically and inclined to the rotating shaft. A massage machine is disclosed.

JP 2005-046541 A JP 2012-120549 A

  Originally, a massage machine mechanically performs massage on a user by a person (the user). In shoulder treatment, the finger of the user when he / she grabs the shoulder of the user is used. It is preferable to reproduce the movement. For example, when stimulating the shoulder well, which is a point on the shoulder of the user, it is preferable to perform treatment by pressing (finger pressure) from above the shoulder. However, in the massage machine described in Patent Document 1, the pair of squeezing hands repeats the approach and separation so as to sandwich the shoulder of the user from the front and back, and does not perform the operation of pressing from above the shoulder. .

  Also in the massage machine described in Patent Document 2, in the second embodiment, the pair of abutting portions repeat the approach and separation so as to sandwich the shoulder of the user from the front and back, The operation of pressing from above is not performed. In the first embodiment described in Patent Document 2, the abutting portion of the first arm presses the shoulder from above, but this effectively treats scooping up and down by the abutting portion of the second arm. Therefore, the shoulder is prevented from being lifted upward, and the treatment by the contact portion of the first arm is only secondary.

  Thus, there is a need for a massage machine that performs treatment by pressing the shoulder of the user from above.

  In order to solve the above-mentioned problems, the characteristic configuration of the massage machine according to the present invention includes a seat portion on which a user is seated, a backrest portion that supports the back of the user seated on the seat portion, and the backrest. And a shoulder treatment mechanism that is attached to the base and that massages the user's shoulder while the user is seated on the seat. The mechanism includes a drive unit that is attached to the base and has an output shaft that rotates when energized, and a treatment element that presses the shoulder of the user from above, and the treatment element according to the rotation of the output shaft Oscillates vertically and treats the shoulder of the user.

  In order to perform treatment by pressing the shoulder of the user from above, it is appropriate to swing the treatment element in the shoulder treatment mechanism in the vertical direction. Therefore, with such a characteristic configuration, the shoulder of the user can be appropriately treated from above.

  Therefore, with the configuration as described above, a massage machine that performs treatment by pressing the shoulder of the user from above can be realized.

  In the massage machine according to the present invention, the shoulder treatment mechanism includes a swash plate cam attached to the output shaft extending in a vertical direction in an inclined posture, and a swash plate cam attached to the swash plate cam. And a treatment element holding portion that swings in the vertical direction without being accompanied, and the treatment element is preferably attached integrally to the treatment element holding portion.

  By using the swash plate cam, the treatment element can be swung in the vertical direction with a simple configuration.

  In the massage machine according to the present invention, it is preferable that the swash plate cam includes an annular bearing, and the output shaft is attached eccentrically with respect to a rotation center of the annular bearing.

  With such a configuration, the movement of the treatment element by the swash plate cam can be added to the vertical swing and the forward / backward / left / right movement can be added. Thereby, since not only the specific location of a shoulder but the periphery can be pressed, the stiffness of a shoulder can also be loosened and the treatment effect can be heightened further.

  In the massage machine according to the present invention, it is preferable that the base portion is inclined in a direction away from the seat portion from the side surface of the backrest portion toward the inner side in the width direction when viewed in the front-rear direction.

  When looking at a person from the front, the person's shoulder is inclined to rise up as he approaches the spine. Therefore, if it is the said structure, the shoulder treatment mechanism attached to the base can be efficiently match | combined with a to-be-treated person's shoulder.

  In the massage machine according to the present invention, it is preferable that the base portion is inclined in a direction closer to the backrest portion as it goes inward in the width direction from the side surface of the backrest portion when viewed in the vertical direction.

  When looking at a person from above, the shoulder of the person is inclined so that the end is the most forward and the rear is closer to the spine. Therefore, if it is the said structure, the shoulder treatment mechanism attached to the base can be efficiently match | combined with a to-be-treated person's shoulder.

  In the massage machine according to the present invention, the base portion includes a first base portion and a second base portion, and the second base portion is attached so that a base end side thereof is swingable to the first base portion, and the driving portion is An urging member attached to the second base and urged in a direction to separate the tip side of the second base from the first base is provided between the first base and the second base. It is preferable to do so.

  With such a configuration, even if the treatment element swings in the vertical direction due to the urging force of the urging member, the treatment element is always pressed from above without separating the treatment element from the shoulder of the user during treatment. Is possible. At this time, the force that the treatment element presses against the shoulder can be periodically changed by the vertical swing by the treatment element and the urging force of the urging member. A treatment feeling close to treatment can be obtained.

  In the massage machine according to the present invention, it is preferable that the shoulder treatment mechanism is movable in the vertical direction.

  With such a configuration, the shoulder treatment mechanism can be moved to an optimum height according to the shoulder height of each user even when the users having different seat heights are seated on the seat.

  In the massage machine according to the present invention, it is preferable that the shoulder treatment mechanism is movable in the width direction.

  With such a configuration, even when a user having a different shoulder width sits on the seat, the shoulder treatment mechanism can be moved to an optimum width according to the shoulder width of each user.

It is a perspective view showing the whole massage machine composition concerning a 1st embodiment. It is a perspective view of a support part and a shoulder treatment mechanism. It is a disassembled perspective view of a support part. It is a perspective view of a base and a shoulder treatment mechanism. It is a disassembled perspective view of a base and a shoulder treatment mechanism. It is a left view of a treatment motor drive part and a swash plate cam. It is a disassembled perspective view of the treatment motor drive part and the swash plate cam of the state which removed the deceleration mechanism case. It is a disassembled perspective view of a swash plate cam. It is a front view of a swash plate cam, a treatment element holding | maintenance part, and a 1st, 2nd treatment element. It is a left view of a swash plate cam, a treatment element holding | maintenance part, and a 1st, 2nd treatment element. It is a disassembled perspective view of a swash plate cam, a treatment element holding | maintenance part, and a 1st, 2nd treatment element. It is sectional drawing of a swash plate cam and a treatment element holding | maintenance part. It is a figure showing operation | movement of a 1st, 2nd treatment element. It is a figure showing operation | movement of a 1st, 2nd treatment element. It is a figure showing operation | movement of a 1st, 2nd treatment element. It is a figure showing operation | movement of the 2nd base with respect to a 1st base, and a shoulder treatment mechanism. It is a figure showing operation | movement of the 2nd base with respect to a 1st base, and a shoulder treatment mechanism.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In addition, embodiment described below is the illustration for demonstrating this invention, and this invention is not limited only to these embodiment. Therefore, the present invention can be implemented in various forms without departing from the gist thereof.

1. First Embodiment [Overall Configuration]
FIG. 1 shows the overall structure of a massage machine 1 according to this embodiment. The massage machine 1 includes a seat portion 11, a backrest portion 12, a support portion 100 (not shown), and a shoulder treatment mechanism 200. The seat portion 11 is a seat on which the user is seated with his buttocks or thighs in contact, and the backrest portion 12 supports the back of the user seated on the seat portion 11. Thereafter, when the user sits on the seat 11 in the massage machine 1, the front side is “front”, the back side is “back”, the right hand side is “right”, the left hand side is “left”, and the head side is “ “Up” and foot side are defined as “down”. The direction parallel to the shoulder width direction of the user is `` width direction '' or `` left-right direction '', the direction parallel to the front-to-back direction is `` front-rear direction '', and the direction perpendicular to both the width direction and the front-rear direction is `` It is defined as “vertical direction”.

  In the following description of the embodiment, the left side support unit 100 (treating the left shoulder), the base 210, and the shoulder treatment mechanism 200 shown in FIG. 1 will be described. Since the support part 100, the base part 210, and the shoulder treatment mechanism 200 have symmetrical shapes on the left side and the right side, description of the right side shape is omitted.

(Support part)
The support portion 100 is attached to the left and right side surfaces 14 and 14 of the backrest portion 12 which is a surface intersecting the backrest surface 13 with which the back of the user abuts. In the present embodiment, the support portion 100 is attached to the backrest portion 12, but may be not attached to the backrest portion 12 as long as the reclining is performed in conjunction with the reclining of the backrest portion 12.

  As shown in FIGS. 2 and 3, the support unit 100 includes an elevating slide rail 110, a slide screw 120 (male screw 122, elevating member 124), an elevating motor driving unit 130, a first metal plate 142, a second metal plate 143, A third metal plate 144, left and right slide rails 146, and a slide plate 150 are provided. The elevating slide rail 110 is formed by bending a metal plate such as iron into a rectangular cross section, and includes a bottom portion 112, a pair of side portions 114 erected in the same direction on both sides of the bottom portion 112, and end portions on both sides. It has a pair of nail | claw part 116 bent and formed inside. A male screw 122 parallel to the extending direction of the elevating slide rail 110 is attached to a space formed by the bottom portion 112, the side portion 114, and the claw portion 116 of the elevating slide rail 110. One end of the male screw 122 is connected to a lifting motor driving unit 130 connected to the lifting slide rail 110, and the other end is formed by standing from the bottom 112 of the lifting slide rail 110. It is supported by.

  The lifting motor driving unit 130 is attached to and integrated with a brushless DC motor (hereinafter referred to as “lifting motor”) 131 having an output shaft, a lifting motor driving circuit 132 for driving the lifting motor 131, and an output shaft of the lifting motor 131. The small-diameter pulley 133 that rotates and the large-diameter pulley 134 that is attached to one end of the male screw 122 and is rotated between the two pulleys 133 and 134 that rotate as a unit are transmitted to the male screw 122. A pulley belt 135 is provided. With this configuration, the rotation of the output shaft of the lifting motor 131 is decelerated and transmitted to the male screw 122 to rotate the male screw 122. However, if the lifting motor 131 is a high-torque low-rotation type, the male screw 122 may be directly rotated without using a pulley.

  An elevating member 124 that accommodates a nut (not shown) screwed into the male screw 122 is attached to the elevating slide rail 110. The elevating member 124 is made of a resin having good slidability. In the present embodiment, the slide screw 120 is constituted by the male screw 122 and the elevating member 124. The elevating member 124 has a substantially rectangular parallelepiped shape having a convex portion (not shown) that is surrounded by and engaged with the bottom portion 112, the side portion 114, and the claw portion 116 of the elevating slide rail 110. The elevating member 124 causes the internal nut to linearly move in both directions along the extending direction of the male screw 122 as the male screw 122 rotates forward and backward. That is, the elevating member 124 moves in the up-down direction while being in sliding contact with the elevating slide rail 110 by forward / reverse rotation of the elevating motor 131. A shoulder treatment mechanism 200 is attached to the support portion 100 via a base portion 210 to be described later, and by moving the lifting member 124 up and down by driving the lifting motor 131, the users having different sitting heights can be seated. Even when seated on the shoulder, the shoulder treatment mechanism 200 can be moved in the vertical direction so as to have an optimum height according to the shoulder height of each user. A ball screw having a ball between the male screw 122 and the nut may be used instead of the slide screw.

  The first metal plate 142 is attached to a support member 125 attached to the elevating member 124 of the support unit 100 by screws or the like. Four hooking claws 125a are formed in the support member 125, and four slit holes 142a formed in the first metal plate 142 are engaged with the hooking claws 125a (see FIG. 2). . The second metal plate 143 connected to the first metal plate 142 by screws or the like extends from the lifting slide rail 110 to the front of the backrest portion 12. The third metal plate 144 connected to the second metal plate 143 by screws or the like extends inward (in the direction overlapping the backrest portion 12 when viewed along the front-rear direction) in front of the backrest portion 12. . In addition, the 3rd metal plate 144 is extended so that the structure of a to-be-treated person's (human) shoulder may be met. That is, the third metal plate 144 is not parallel to the backrest surface 13 of the backrest portion 12 and the width direction, and is closer to the backrest portion 12 as it extends inward from the connection portion with the second metal plate 143 and upward. It is configured to incline toward.

  A left and right slide rail 146 made of metal is attached to the inner side (lower side) of the third metal plate 144. The left and right slide rails 146 extend in parallel with the extending direction of the third metal plate 144, and have a bottom portion 147, side portions 148, and claw portions 149, similar to the lift slide rail 110. A slide plate 150 that slides on the left and right slide rails 146 and moves along the extending direction is attached to the inner space of the left and right slide rails 146. A shoulder treatment mechanism 200 is attached to the slide plate 150 via a base 210. By moving the shoulder treatment mechanism 200 in the width direction along the left and right slide rails 146, the slide plate 150 and the base 210 are also moved in the width direction, and the shoulder treatment mechanism 200 can be adjusted to an appropriate position on the shoulder of the user. it can. In the present embodiment, the shoulder treatment mechanism 200 is manually moved in the width direction.

  In the present embodiment, the elevating member 124 is raised and lowered by the elevating motor 131, but it may be configured to be manually raised and lowered. Moreover, you may comprise so that the movement of the width direction of the shoulder treatment mechanism 200 can be moved not by manual operation but by motor drive. These lifting and moving methods can be freely combined.

〔base〕
As shown in FIGS. 4 and 5, the base portion 210 includes a first base portion 211 and a second base portion 216. The base 210 is attached in parallel to the third metal plate 144. That is, when viewed along the front-rear direction, the base portion 210 is not parallel to the width direction, but is inclined in a direction away from the seat portion 11 toward the inner side in the width direction from the side surface 14 of the backrest portion 12. . Further, when viewed along the vertical direction, the base portion 210 is not parallel to the backrest surface 13 of the backrest portion 12 but is inclined in a direction closer to the backrest portion 12 as it goes inward in the width direction from the side surface 14 of the backrest portion 12. Configured.

  The first base portion 211 is formed by bending a metal plate into a U shape, and has a bottom portion 212 and a pair of side portions 213. The bottom 212 of the first base 211 is attached to the slide plate 150 with screws or the like via four spacers (not shown). A circular joint holding through-hole 214 is formed in the side portion 213 at an opposite location. The first base portion 211 extends in the front-rear direction, and the joint holding through hole 214 is formed at the front end portion of the side portion 213.

  The second base 216 is formed in a rectangular parallelepiped box shape having a lower surface opened by bending a metal plate. The second base 216 is located at a location sandwiched between the bottom 212 and the side 213 of the first base 211. The bottom 217 of the second base 216 faces the bottom 212 of the first base 211. The bottom 217 of the second base 216 has a front end extending forward to form a tongue 218, and the tip of the tongue 218 is bent and extends downward. A tongue through hole 219 is formed in the vicinity of the tip of the tongue 218.

  Between the two joint holding through holes 214 of the first base portion 211, there is a joint portion 220. The joint portion 220 is formed in a rectangular parallelepiped shape by combining two resin parts, and a pair of cylindrical protrusions are formed on both end surfaces of the joint portion 220 facing the pair of side portions 213 of the first base portion 211. 221 is formed. The protrusion 221 is fitted into the joint holding through-hole 214 of the first base portion 211, so that the joint portion 220 can swing with respect to the first base portion 211 in the front-rear direction and the vertical direction with the protrusion 221 as an axis. It is. The pair of protrusions 221 has a through hole formed at the center thereof, and the shaft 215 is inserted (see FIG. 4).

  A recess 222 is formed in the center of the surface located in front of the surface parallel to the pivot axis of the joint portion 220. A tongue portion 218 of the second base portion 216 is fitted into the recess 222, and a screw or the like is inserted into the tongue portion through hole 219 formed in the tongue portion 218 to be fixed to the joint portion 220. 216 is fixed to the joint portion 220. As a result, when the joint portion 220 swings with respect to the first base portion 211, the second base portion 216 also swings simultaneously.

  A compression coil spring 228, which is an example of an urging member, is attached between the bottom 212 of the first base 211 and the bottom 217 of the second base 216, so that a joint portion is attached to the distal end side of the second base 216. A force (biasing force) in a direction away from the first base 211 with the protrusion 221 of 220 as the pivot axis is always applied (see FIGS. 16 and 17).

  A magnet (not shown) is attached to the side of the compression coil spring 228 close to the second base 216, and the compression coil spring 228 is attached to a board (not shown) attached to the first base 211 so as to face the magnetic pole surface of the magnet. A plurality of Hall elements (or Hall ICs) are mounted along the expansion / contraction direction. By specifying the Hall element in which the Hall voltage is detected by the approach of the magnet, the amount of expansion and contraction of the compression coil spring 228 can be detected. In addition, the structure which the 1st base 211 equips with the several element so that a Hall element may be attached to the compression coil spring 228, and this may be sufficient may be sufficient.

  Instead of the compression coil spring 228, an air bag whose volume is expanded and contracted by taking in and out air may be used as the urging member. Usually, the massage machine 1 includes an air bag for treating a place other than the shoulder, for example, a forearm, a back, or a calf, and an air compressor for taking air into and out of the air bag. Therefore, even if an air bag is used, a force (biasing force) in a direction away from the first base portion 211 can be applied to the distal end side of the second base portion 216 without increasing the cost. By adjusting the amount of air, the force (biasing force) in the separating direction can be adjusted. For example, the expansion amount is increased for a person who desires a shoulder to be pressed strongly, and the expansion amount is decreased for a person who desires a shoulder to be pressed weakly.

[Shoulder treatment mechanism]
The shoulder treatment mechanism 200 performs treatment on the shoulder of the user, and in particular, performs treatment by pressing the shoulder from above. As shown in FIGS. 4 to 12, the shoulder treatment mechanism 200 includes a treatment motor drive unit 230, a swash plate cam 240, a treatment element holding unit 250, a first treatment element 261, and a second treatment element 265. . The shoulder treatment mechanism 200 is configured to be movable along the extending directions of the elevating slide rail 110 and the left and right slide rails 146 together with the base 210.

(1) Treatment Motor Drive Unit As shown in FIGS. 5 to 7, a treatment motor drive unit 230, which is an example of a drive unit, is accommodated in the internal space of the second base 216. The treatment motor drive unit 230 meshes with a brushless DC motor (hereinafter referred to as “treatment motor”) 231 having a worm output shaft 232, a treatment motor drive circuit 233 that drives the treatment motor 231, and the worm output shaft 232 of the treatment motor 231. A worm speed reduction mechanism 234 that reduces the rotation of the treatment motor 231, a treatment output shaft 235 (an example of an output shaft) that meshes with the worm speed reduction mechanism 234, and a speed reduction mechanism case 237.

  The worm output shaft 232 and the worm speed reduction mechanism 234 are accommodated in the speed reduction mechanism case 237. The treatment motor 231 and the treatment motor drive circuit 233 excluding the worm output shaft 232 are screwed to the speed reduction mechanism case 237 via a stay 238. The speed reduction mechanism case 237 is fixed to the side surface of the second base 216 with screws or the like, and the treatment motor drive unit 230 is integrated with the second base 216. A swash plate cam 240 described later is attached to the treatment output shaft 235.

(2) Swash Plate Cam As shown in FIGS. 6 to 8, the swash plate cam 240 includes a ball bearing 242 that is an example of an annular bearing and an inner ring of the ball bearing 242 sandwiched from both sides in the axial direction. A resin-made cylindrical cam body 244 that rotates integrally with the inner ring, and a fixed plate 246 that is attached to two bottom surfaces of the cam body 244 and sandwiches the cam body 244 from the outside. The swash plate cam 240 has two holes that penetrate the cam body 244 and the fixed plate 246. In one hole, a bolt 247 is inserted from one fixed plate 246 to the cam body 244 and the other fixed plate 246 and fastened by a nut 248. Thereby, the fixed plate 246, the cam body 244, and the ball bearing 242 are integrated. The treatment output shaft 235 is inserted into the other hole and fastened with a nut 249. The treatment output shaft 235 is inserted with a rotation-preventing pin 236 that protrudes in the radial direction, and a shape that fits with the rotation-preventing pin 236 is formed on one fixed plate 246, whereby the treatment output shaft 235 The swash plate cam 240 (excluding the outer ring of the ball bearing 242) rotates as a unit.

  The axis X of the treatment output shaft 235 becomes the rotation axis of the swash plate cam 240, and the treatment output shaft 235 is attached eccentrically from the rotation center of the ball bearing 242, that is, the axis of the cam body 244. Further, the rotational axis of the ball bearing 242 is inclined with respect to both the axial center and the bottom surface of the cam body 244. Specifically, it is assumed that a radial half line passing through the center of the treatment output shaft 235 starting from the axis of the cam main body 244 intersects the outer peripheral surface of the cam main body 244 and passing through this point. The ball bearing 242 is inclined so that the most distant portion from the treatment motor drive unit 230 of the ball bearing 242 is located on a line parallel to the axis of the cam body 244. In other words, the part of the ball bearing 242 that is closest to the treatment output shaft 235 is farthest from the treatment motor drive unit 230, and the part that is farthest from the treatment output shaft 235 is closest to the treatment motor drive unit 230. Thereby, when the treatment output shaft 235 rotates, the inner ring of the ball bearing 242 of the swash plate cam 240 rotates in an eccentric and deviated state with respect to the axis X. In addition, the ball bearing 242 may be configured not to be closest to the treatment output shaft 235 but to be located at the most distant place from the treatment motor driving unit 230. Further, instead of the ball bearing 242, a roller bearing or a sliding bearing may be used.

(3) Treatment element holding part As shown in FIGS. 5 and 9 to 12, a treatment element holding part 250 is attached to the swash plate cam 240. The treatment element holding portion 250 is composed of a plate-like first member 252 made of a metal plate and a second member 254 made of resin and having a bottom surface and a side surface standing so as to surround the periphery of the bottom surface by screws or the like. It is configured. The first member 252 functions as a lid that covers the periphery of the cam holding through hole 255 of the second member 254. The treatment element holding portion 250 is formed with a cam holding through hole 255 having a circular cross section that fits into the outer ring of the ball bearing 242 of the swash plate cam 240 from the first member 252 to the second member 254. In the second member 254, the hole 255 is formed by a cylindrical protrusion 255a that stands vertically from the bottom surface. An outer ring of a ball bearing 242 is attached to the inner peripheral surface of the protrusion 255a by a method such as press fitting or adhesion. That is, the treatment element holding portion 250 is attached perpendicularly to the rotation axis of the ball bearing 242. Therefore, the treatment element holding part 250 is inclined at the same angle as the ball bearing 242 with respect to the treatment output shaft 235. Further, a cover 257 is attached to the swash plate cam 240 so as to cover the end on the side opposite to the side on which the protrusion on the bottom surface of the second member 254 is formed.

(4) Treatment element As shown in FIGS. 5 and 9 to 11, the treatment element holding part 250 is on the same side as the side where the cover 257 of the second member 254 is attached, and more than the swash plate cam 240. A first treatment element 261 (an example of a treatment element) made of resin, rubber, or the like is attached to the inner side in the width direction (that is, the left side of the swash plate cam 240 when viewed from the front to the rear) by a screw or the like. It has been. The first treatment element 261 has a substantially L-shaped cross section, and a contact part 262 that contacts the shoulder of the user protrudes downward from a place connected to the treatment element holding part 250, and the contact part 262. The tip of is substantially hemispherical. The first treatment element 261 imitates treatment by the user's thumb, and includes, for example, acupuncture points such as a shoulder midline, a shoulder girdle, a curve wall, and a shoulder well, latissimus dorsi, shoulder levator muscle, and trapezius muscle. Press.

  The second treatment element 265 is attached to the treatment element holding part 250 so as to be swingable in the front-rear direction and the up-down direction near and in front of the place where the swash plate cam 240 of the treatment element holding part 250 is attached. . The second treatment element 265 includes a connection member 266, a second treatment element main body 276, and a connection shaft (an example of a link) 280.

  The connecting member 266 has a columnar shape with a cross section of a right triangle with rounded corners, and is formed of resin. Of the two sides (long side and short side) sandwiching the right angle, the rotation shaft 274 is formed at the corner portion composed of the long side and the oblique side so as to protrude from the surface forming the right triangle. The rotation shaft 274 is inserted into a U-shaped groove 256 formed in the second member 254 of the treatment element holding unit 250, and the first member 252 covers the U-shaped groove 256. As a result, the connecting member 266 is held by the treatment element holding portion 250 so as to be swingable in the front-rear direction and the up-down direction about the rotation shaft 274. The connecting member 266 is attached to the treatment element holding part 250 so that the rotation shaft 274 is parallel to the width direction of the treatment element holding part 250. A first pin through hole 270 is formed at a corner portion of the connecting member 266 that forms a right angle so as to penetrate a surface forming a right triangle.

  The second treatment element main body 276 is made of resin, rubber, or the like, and the base end side thereof is fixed to the surface of the connecting member 266 forming the oblique side of the right triangle by screws or the like, and is integrated with the connecting member 266. The second treatment element main body 276 is on the outer side in the width direction than the first treatment element 261 and extends forward from the treatment element holding portion 250. That is, when viewed along the width direction, the second treatment element main body 276 is positioned in front of the first treatment element 261, and the distal end portion of the second treatment element main body 276 is more than the distal end portion of the first treatment element 261. Is also located below. Further, when viewed along the width direction, the protrusion 221 of the joint portion 220 (the joint holding through-hole 214 of the first base portion 211) has a distal end portion of the first treatment element 261 and a distal end portion of the second treatment element body 276. Located between.

  The distal end side of the second treatment element main body 276 is a portion that comes into contact with the shoulder of the user, and is divided into two forks from the middle of the second treatment element main body 276. The size of the forked width direction is different, and the first contact portion 277 on the inner side in the width direction is smaller than the second contact portion 278 on the outer side in the width direction. Further, the entire width of the distal end portion of the second treatment element body 276 is larger than the width of the first treatment element 261 (diameter of the hemispherical portion). Furthermore, the first contact portion 277 and the second contact portion 278 have a plurality of groove portions 279 in a direction perpendicular to the extending direction. Thereby, even when a hard material is used for the 2nd treatment element main body 276, the pressure at the time of the 1st contact part 277 and the 2nd contact part 278 pressing a shoulder of a user can be weakened. . The second treatment element body 276 imitates treatment with four fingers excluding the thumb of the user, and supports and rubs the body of the user from the front side. Press. The second treatment element main body 276 is not divided into two forks and may be integrated.

  The connecting shaft 280 extends in the vertical direction, and is located above the connecting member 266 and the second treatment element body 276. One end, which is the upper side of the connecting shaft 280, is supported by the joint portion 220, and the other end, which is the lower side, is attached to the connecting member 266 so as to be swingable. The connecting shaft 280 has a columnar shape, and the side close to one end is a small-diameter portion 281 having a columnar diameter smaller than the diameter of the central portion, and a spherical portion 282 having a tip (one end) larger in diameter than the small-diameter portion 281. It has become. Of the surfaces of the joint portion 220, a surface facing the connecting shaft 280 has a circular opening, and a hole 223 is formed. The hole 223 includes a mortar-shaped hole 224 whose diameter decreases from the surface toward the inside, and a spherical hole 225 that communicates with the bottom of the mortar-shaped hole 224 and can hold the tip of the connecting shaft 280 (see FIG. 9). ). The diameter of the bottom of the mortar-shaped hole 224 is smaller than the diameter of the spherical hole 225. Accordingly, when the joint portion 220 is assembled with the spherical portion 282 of the connecting shaft 280 fitted into the spherical hole 225, one end of the connecting shaft 280 is moved in the front-rear direction, the up-down direction, and the width direction with respect to the joint portion 220. Although restricted, it is rotatable and swingable within an angular range in contact with the mortar-shaped hole 224 around the spherical portion 282. That is, one end of the connecting shaft 280 and the joint portion 220 are connected by a so-called ball joint.

  A second pin through hole 283 is formed in the other end of the connecting shaft 280 in the radial direction, and the second pin through hole 283 and the connecting pin 284 that passes through the first pin through hole 270 of the connecting member 266, The connecting member 266 is swingably attached. Since the connecting pin 284 is attached so as to be parallel to the width direction of the treatment element holding portion 250, that is, to be parallel to the rotation shaft 274, the second treatment element 265 (connection member 266) is connected to the connection pin 280 by the connection pin 280. 284 is supported so as to be swingable in the front-rear direction and the up-down direction about the axis 284. In addition, the connecting portion between the connecting shaft 280 and the connecting member 266 is located between the proximal end side and the distal end side of the second treatment element 265.

  With the above-described configuration, the second treatment element 265 forms a link in which the connecting member 266 can swing relative to the treatment element holding portion 250, and the connection shaft 280 includes a ball joint and a swingable link. It has a so-called two-link mechanism. Therefore, the second treatment element 265 can move in the vertical direction with respect to the treatment element holding part 250 and can rotate with respect to the joint part 220.

[Operation of treatment element]
Next, operation | movement of the 1st treatment element 261 and the 2nd treatment element 265 when operating the massage machine 1 which concerns on this embodiment is demonstrated using FIGS. 13-17.

  First, the treatment motor 231 is driven in a state where the user is not seated on the seat 11 of the massage machine 1, that is, in a state where the first treatment element 261 and the second treatment element 265 are not in contact with anything. At this time, as shown in FIG. 17, the distal end side of the second base portion 216 is separated from the first base portion 211 by the urging force of the compression coil spring 228. However, in the following description, it is assumed that the biasing force of the compression coil spring 228 does not act on the second base 216 as shown in FIGS.

  When the treatment motor 231 is driven, the treatment output shaft 235 is rotated by being decelerated by the worm reduction mechanism 234. By rotation of the treatment output shaft 235, the cam main body 244 of the swash plate cam 240, the fixed plate 246, and the inner ring of the ball bearing 242 rotate together. However, the treatment element holding part 250 is not rotated. This is because the second treatment element 265 attached to the treatment element holding part 250 is supported by the first base 211 via the connecting shaft 280 and the joint part 220. However, since the treatment element holding portion 250 is fixed to the outer ring of the ball bearing 242, even if the treatment element holding portion 250 does not rotate, the treatment output shaft 235, the cam body 244, the fixing plate 246, and the inner ring of the ball bearing 242. Does not become resistance when rotating.

  As described above, the treatment output shaft 235 is attached in a state of being eccentric with respect to the axis of the cam body 244 of the swash plate cam 240, so that the cam body 244 of the swash plate cam 240 is rotated with the rotation of the treatment output shaft 235. Revolves around the axis X. That is, the swash plate cam 240 rotates eccentrically with respect to the axis X of the treatment output shaft 235.

  Since the rotational axis of the ball bearing 242 is inclined with respect to both the axial center and the bottom surface of the cam body 244, the treatment element holding part 250 attached perpendicularly to the rotational axis of the ball bearing 242 is also the cam body. It is inclined with respect to both the axis 244 and the bottom surface. When the treatment output shaft 235 rotates in this state, as shown in FIGS. 13 to 15, the treatment element holding portion 250 is the same as the amount of movement of the swash plate cam 240 in the front-rear direction and the width direction with respect to the treatment output shaft 235. At the same time, the ball bearing 242 swings in the same angular range as that in which the ball bearing 242 swings (up and down) (see FIGS. 14 and 15). In other words, the front-rear direction and the width direction position and the inclination direction of the treatment element holding portion 250 continuously change according to the rotation angle of the treatment output shaft 235.

  As described above, the first treatment element 261 is integrally attached to the treatment element holding part 250. When the treatment element holding portion 250 is positioned at the foremost position with respect to the treatment output shaft 235 as a rotation reference (0 degrees) (FIG. 13 to FIG. 15 (I)), the first treatment element 261 is: When viewed along the vertical direction, as shown in FIG. 13, as the treatment output shaft 235 rotates counterclockwise as seen from below, the right (treatment output shaft) The rotation angle of 235 is 90 degrees, FIG. 13 (II)), back (180 degrees, FIG. 13 (III)), left (270 degrees, FIG. 13 (IV)), and again (0 degrees, FIG. I)) to move (round motion). At the same time, as viewed in the front-rear direction and the width direction, as shown in FIGS. 14 and 15, the first treatment element 261 is in the middle position (0 degree, (I) in FIGS. 14 and 15. ) From the upper position (90 degrees, (II) in FIGS. 14 and 15), the middle position (180 degrees, each (III) in FIGS. 14 and 15), and the lower position (270 degrees, FIG. 14, After each (IV) in FIG. 15, it moves (swings) again to the middle position (0 degree). This is because the ball bearing 242 fitted in the treatment element holding portion 250 (first treatment element 261) rotates with respect to the treatment output shaft 235 in an eccentric and declination state. The upper position means the uppermost position where the first treatment element 261 can be positioned in the vertical direction and its vicinity, and the lower position means the lowermost position where the first treatment element 261 can be positioned in the vertical direction and its vicinity. Means the position of The middle position means an intermediate position between the upper value and the lower position.

  At this time, as shown in FIGS. 13 to 15, the second treatment element 265 uses the position where the treatment element holding portion 250 is in front of the treatment output shaft 235 as the rotation reference (0 degree) ( 13 to 15 (I)), the base end side of the second treatment element 265 is opposite to the treatment output shaft 235 when viewed from below as shown in FIG. As it rotates in the clockwise direction, the right (the rotation angle of the treatment output shaft 235 is 90 degrees, FIG. 13 (II)) and the rear (180 degrees, FIG. 13 (III)) in conjunction with the movement of the treatment element holding portion 250. After moving to the left (270 degrees, FIG. 13 (IV)), it moves forward (0 degrees, FIG. 13 (I)) (circular motion) again. The distal end side (first contact portion 277, second contact portion 278) of the second treatment element main body 276 of the second treatment element 265 also moves in the same manner as the proximal end side. The amount of movement in the front-rear direction is smaller than the side. At the same time, when viewed along the width direction, as shown in FIG. 14, the distal end side of the second treatment element body 276 is moved from the middle position (0 degree, FIG. 14 (I)) to the upper position (90 degrees). 14 (II)), the middle position (180 degrees, FIG. 14 (III)), and the lower position (270 degrees, FIG. 14 (IV)), and then swings again to the middle position (0 degrees). . Further, when viewed along the front-rear direction, as shown in FIG. 15, the distal end side of the second treatment element body 276 is shifted from the intermediate position (0 degrees, FIG. 15 (I)) to the right position (90 degrees, FIG. 15 (II)), the intermediate position (180 degrees, FIG. 15 (III)), the left position (270 degrees, FIG. 15 (IV)), and then swing again to the intermediate position (0 degrees). However, the vertical movement (swing amount) is smaller than that of the treatment element holding portion 250 (first treatment element 261) due to the action of the two-link mechanism. The movement in the width direction is equivalent to the first treatment element 261. The connecting shaft 280 supported by the joint portion 220 (second base portion 216) rotates around the spherical portion 282 but does not contact the wall surface of the mortar-shaped hole 224 of the joint portion 220.

  The above-mentioned upper position means the uppermost position where the second treatment element main body 276 can be positioned in the up-and-down direction and the position in the vicinity thereof, and the lower position means the lowermost position where the second treatment element main body 276 can be positioned in the upper-lower direction and It means the position in the vicinity. The middle position means an intermediate position between the upper value and the lower position. The left position means the leftmost position where the second treatment element main body 276 can be positioned in the width direction and the position in the vicinity thereof, and the right position means the rightmost position where the second treatment element main body 276 can be positioned in the width direction. It means the position in the vicinity. The intermediate position means an intermediate position between the left value and the right position.

  As described above, the first treatment element 261 moves back and forth in conjunction with the movement of the treatment element holding portion 250 when viewed along the width direction. Although the distal end side of the second treatment element main body 276 of the second treatment element 265 also swings back and forth in conjunction with the movement of the treatment element holding part 250, its movement amount (swing amount) is small. Therefore, when viewed along the width direction, the distance between the first treatment element 261 and the distal end side of the second treatment element body 276 changes according to the rotation of the treatment output shaft 235. Then, the first treatment element 261 and the second treatment element main body 276 are linked and moved so that the distance between the distal ends of the first treatment element 261 and the second treatment element main body 276 is shortened, whereby the shoulder of the user is held by the second treatment element main body 276 from the front. However, treatment can be performed by pressing the shoulder of the user from above with the first treatment element 261.

  Thus, the first treatment element 261 and the second treatment element 265 can be swung in the vertical direction by a simple configuration using the swash plate cam 240. Note that the movement of the first treatment element 261 and the second treatment element 265 depending on the rotation angle of the treatment output shaft 235 varies depending on the positional relationship between the treatment output shaft 235 and the ball bearing 242 farthest from the treatment motor drive unit 230. come.

  Next, the movement of the first treatment element 261 and the second treatment element 265 when the user is seated on the massage machine 1 will be described. First, in a state where the user is seated on the seat portion 11 of the massage machine 1, the shoulder treatment mechanism 200 supported by the support portion 100 is adjusted to the position of the shoulder. Specifically, the first treatment element 261 is located at the upper part of the shoulder, and the second treatment element 265 is located at the front part of the shoulder. At this time, the distal end side of the second base 216 is separated from the first base 211 by the action of the compression coil spring 228. Accordingly, the first treatment element 261 presses the shoulder of the user from above, and the second treatment element 265 holds the shoulder from the front. In this state, the treatment motor 231 is driven.

  The first treatment element 261 presses the shoulder of the user from above with the first treatment element 261 while holding the shoulder of the treatment person from the front by the second treatment element 265 by the action of the compression coil spring 228. The second treatment element 265 is not separated from the shoulder of the user by swinging in the vertical direction, and can be pressed from above while always holding the shoulder. While the first treatment element 261 is pressed from above, the first treatment element 261 periodically presses the shoulder of the user by the vertical swing of the first treatment element 261 and the urging force of the compression coil spring 228. Therefore, it is possible to obtain a treatment feeling close to treatment by the user's finger. Therefore, in the massage machine 1 according to the present embodiment, the second treatment element 265 holds the shoulder of the user so as not to float from the backrest portion 12, and the shoulder that is the point of the shoulder from above with the first treatment element 261. Can stimulate wells.

  Moreover, since the 1st treatment element 261 and the 2nd treatment element 265 move to the front-back, right-and-left direction, since it can press not only the specific location of a treated person's shoulder but its periphery, the treatment effect by a press can be carried out. It can be further increased.

  In the shoulder treatment mechanism 200 of the present embodiment, as described above, the first treatment element 261 moves in the front-rear and left-right directions to perform a so-called circular motion (see FIG. 13), and the first treatment element 261 is provided by a two-link mechanism. And the second treatment element 265 repeatedly approach and separate from each other in the front-rear direction (see FIG. 14), so that not only the shoulder is pressed, but also shoulder muscles such as the levator levator muscle and the upper part of the trapezius are loosened be able to. Trapezius is a thick and strong muscle, while the scapula is a thin and weak muscle. In particular, women and navel shoulders tend to be stiff due to the weakness of the levator scapula muscle.

  Therefore, in the shoulder treatment mechanism 200, the first treatment element 261 performs a circular motion around the treatment output shaft 235 extending in the vertical direction, so that the movement of the user's finger and the rotation of the thumb ball during the heel are performed. It can be reproduced and the shoulder muscles such as the levator scapula and the upper part of the trapezius can be loosened by pressing a range slightly wider than the acupressure. At this time, the second treatment element 265 grasps and supports the body of the user so that the body of the user does not escape when the first treatment element 261 performs the heel motion. In other words, the second treatment element 265 grasps the shoulder muscles of the user when the first treatment element 261 and the second treatment element 265 are close to each other, and supports the body of the user when they are separated. Thereby, the shoulder muscles of the user can be effectively loosened.

  The up-and-down movement of the elevating members 124 and 124 provided on the left and right side surfaces 14 and 14 of the backrest 12 and the movement of the shoulder treatment mechanisms 200 and 200 in the width direction can be independently performed. . Also, with respect to the treatment motors 231 and 231 of the left and right shoulder treatment mechanisms 200 and 200, only one treatment motor 231 can be driven or the number of rotations can be varied. That is, each of the treatment motors 231 and 231 can be controlled independently. As a result, when the left and right shoulder heights differ depending on the individual difference of the user, when the pressure position, pressing force, etc. desired by the user are different between the left and right shoulders, only one of the left and right shoulders It is possible to easily cope with cases where it is desired to treat the patient.

  The present invention can be used for a massage machine.

DESCRIPTION OF SYMBOLS 11 Seat part 12 Backrest part 14 Side surface 200 Shoulder treatment mechanism 210 Base part 211 1st base part 216 2nd base part 228 Compression coil spring (biasing member)
230 Treatment Motor Drive Unit (Drive Unit)
235 Treatment output shaft (output shaft)
240 Swash plate cam 242 Ball bearing (annular bearing)
250 treatment element holding portion 261 first treatment element (treatment element)

Claims (8)

A seat where the user is seated;
A backrest that supports the back of the user seated on the seat;
A base provided in front of the backrest;
A shoulder treatment mechanism attached to the base and performing massage on the shoulder of the user in a state where the user is seated on the seat;
The shoulder treatment mechanism is
A drive unit having an output shaft attached to the base and rotating by energization;
A treatment element that presses the shoulder of the user from above, and
A massage machine in which the treatment element swings in the vertical direction according to the rotation of the output shaft to treat the shoulder of the user. The shoulder treatment mechanism is
A swash plate cam attached in an inclined posture to the output shaft extending in the vertical direction;
A treatment element holding portion attached to the swash plate cam and swinging up and down without being rotated along with the rotation of the swash plate cam;
The massage device according to claim 1, wherein the treatment element is integrally attached to the treatment element holding portion.   The massage machine according to claim 2, wherein the swash plate cam includes an annular bearing, and the output shaft is mounted eccentrically with respect to a rotation center of the annular bearing.   The massage machine according to any one of claims 1 to 3, wherein the base portion is inclined in a direction away from the seat portion as it goes inward in the width direction from a side surface of the backrest portion when viewed in the front-rear direction.   The massage machine according to any one of claims 1 to 4, wherein the base portion is inclined in a direction closer to the backrest portion as it goes inward in the width direction from a side surface of the backrest portion when viewed in a vertical direction. The base has a first base and a second base;
The second base is attached to the first base so that the base end side can swing.
The drive is attached to the second base;
6. The urging member for urging the distal end side of the second base portion in a direction of separating from the first base portion between the first base portion and the second base portion. A massage machine according to claim 1.   The massage machine according to any one of claims 1 to 6, wherein the shoulder treatment mechanism is movable in a vertical direction. The massage machine according to any one of claims 1 to 7, wherein the shoulder treatment mechanism is movable in a width direction.

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