JP2005334285A - Massage machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a massage machine in which the posture and projection amount of a treater can be freely combined and a compact strength-adjusting mechanism in a simple structure is provided. <P>SOLUTION: In the massage machine provided with the strength-adjusting mechanism for adjusting the projection amount of the treater 2, the strength-adjusting mechanism comprises a pair of support arms 9 to which an upper treater 2b and a lower treater 2c are attached, a first drive unit 8a connected to both of the pair of support arms 9, to which a middle treater 2a is attached, a second drive unit 8b connected to only one of the pair of support arms 9, and a third drive unit 8c connected to only the other of the pair of the support arms 9, and changes the posture and position of the respective support arms 9 corresponding to the position change of the first - third drive units 8a-8c. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a massage machine that drives a therapeutic element to perform hitting and itching, and more particularly to a technique for freely changing the posture and protruding amount of the therapeutic element.

  Conventionally, by driving a treatment element that protrudes forward from the backrest part of a chair, a massage machine that performs massage such as hitting and itching by the treatment element on the shoulder and back of a user in a sitting state Is provided. Various types of massage machines have been proposed that have a strength adjustment mechanism that adjusts the strength of the massage by adjusting the amount of forward protrusion of the treatment element. A linear motion type strength adjustment mechanism is shown that attempts to adjust the amount of protrusion of the treatment element, that is, the strength of massage, by driving forward and backward in the direction. Patent Document 2 discloses a rotating system strength adjustment mechanism that attempts to adjust the amount of protrusion of the treatment element, that is, the strength of massage, by rotationally driving an arm that supports the treatment element in the front-rear direction. Here, in the above-mentioned linear motion type strength adjustment mechanism, the strength of the massage can be freely changed while the posture of the treatment element cannot be changed, and there is a problem that the massage becomes monotonous. . Further, in the above-described rotating system strength adjustment mechanism, the amount of protrusion of the treatment element is changed and the posture of the treatment element is also changed at the same time, so that the massage can be changed. There exists a problem that the attitude | position will be determined according to protrusion amount.

Therefore, in order to freely change the posture and the amount of protrusion of the treatment element to enable various massages, it is conceivable to combine the above-mentioned linear motion strength adjustment mechanism and the rotation strength adjustment mechanism. In this case, there arises a problem that the overall strength adjustment mechanism becomes complicated and large.
JP 2002-159549 A JP 2001-149434 A

  The present invention has been invented in view of the above problems, and is a massage machine that can freely change the posture and protrusion amount of a treatment element and has a simple and compact strength adjustment mechanism. The issue is to provide.

  In order to solve the above problems, the massage machine according to the present invention is a massage machine including a strength adjustment mechanism that adjusts the protrusion amount of the treatment element, and the support arm on which the treatment element is attached to at least one end side of the strength adjustment mechanism. And a plurality of drive units that are pivotally connected to the support arm and driven to advance and retreat in the protruding direction of the treatment element, and the posture and position of the support arm according to the position change of the plurality of drive units. Shall be changed. In the massage machine having the above-described configuration, the posture of the support arm and thus the treatment element can be freely changed by changing the relative positions of the plurality of drive units, and the entire plurality of drive units are maintained while maintaining the relative positions. The amount of protrusion of the treatment element can be freely changed by driving forward and backward. In other words, a simple and compact strength adjustment mechanism consisting of a plurality of drive units is provided. By simply driving the drive units forward and backward to change the position, the posture and the amount of protrusion of the treatment element can be changed freely. Massage is possible.

  The strength adjustment mechanism includes a pair of support arms, a first drive unit coupled to both of the pair of support arms, a second drive unit coupled to one of the pair of support arms, and a pair of It is also preferable to include a third drive unit coupled to the other of the support arms, and to change the posture and position of each support arm in accordance with the change in position of the first to third drive units. In this case, by changing the relative positions of the first to third drive units, the posture of the pair of support arms and thus the treatment elements attached to these support arms can be freely changed, and the relative positions can be changed. The protrusion amount of the treatment element can be freely changed by driving the entire first to third drive units forward and backward while holding them. In other words, a simple and compact strength adjustment mechanism consisting of three drive units is provided, and the posture and amount of protrusion of the treatment element attached to a pair of support arms can be freely adjusted by simply moving the drive units forward and backward. A variety of massages will be possible.

  Further, the pair of support arms are arranged in parallel in the left-right direction substantially perpendicular to the protruding direction of the treatment element, and the treatment element is attached to both end sides sandwiching the connection portion with the first drive unit; It is also preferable to do. In this way, when the pair of support arms are rotated in the opposite directions around the connection point with the first drive unit, the upper treatment element of one support arm and the other support arm The lower treatment element moves in a direction in which the treatment elements approach each other, and a shoulder grasping massage that grasps the shoulder of the user using both treatment elements becomes possible.

  Furthermore, the treatment element on the upper end side of one of the pair of support arms is a rotatable roller-type treatment element, and the treatment element on the upper end side of the other support arm is a flat-type treatment element. When the support arm holds the same posture, it is also preferable that the roller-type treatment element is provided above the flat plate-type treatment element. By doing in this way, when moving the whole treatment element upwards, the malfunction that an upper treatment element will be caught in the cloth part which covers a massage machine can be prevented.

  In the massage machine, it is also preferable that the support arm and at least one drive unit connected to the support arm are slidably and rotatably connected. By doing so, the support arm and the drive unit can be directly connected without interposing other members, so that the number of parts and the number of assembly steps can be reduced. Further, instead of directly connecting in this way, the support arm and at least one drive unit connected to the support arm are connected via a support arm and an auxiliary arm that is rotatable with respect to the drive unit. Is also preferable. By doing so, a distance can be provided between the support arm and the drive unit, so that the degree of freedom in design increases and the space can be used effectively.

  Further, a tapping generating mechanism comprising an eccentric shaft interposed at a connection portion between the support arm and the drive unit, or a connection portion between the auxiliary arm and the drive unit or the support arm, and a motor that drives the eccentric shaft to rotate eccentrically. It is also preferable to provide. By providing such a hit generation mechanism, if the motor is driven to rotate, the support arm will swing through the eccentric shaft. Therefore, a tapping massage can be performed using the treatment element attached to the support arm.

  Further, in the case of a plurality of support arms, it is preferable that the hit generation mechanism is provided for each support arm. In this way, it is possible to select whether or not the swinging motion is performed for each support arm, and various tapping massages are possible.

  In addition, in a structure including a plurality of support arms and a drive unit in which at least two of the plurality of support arms are rotatably connected at a common connection location, the hitting mechanism is provided at the connection location. It is also preferable to interpose an eccentric shaft. In this way, a plurality of support arms can be swung by a single hit generation mechanism, so that the number of parts and the number of assembly steps can be reduced.

  In each of the massage machines, it is also preferable that a rotation mechanism that rotates about an axis substantially parallel to the protruding direction of the treatment element is provided on at least one end side of the support arm, and the treatment element is attached to the rotation mechanism. By doing in this way, it is possible to perform acupressure massage such as turning the treatment element while applying pressure to the user with the treatment element.

  Further, in the massage machine provided with the hitting mechanism described above, a rotation mechanism that rotates about an axis substantially parallel to the protruding direction of the treatment element is provided on at least one end side of the support arm, and the treatment element is attached to the rotation mechanism. At the same time, it is also preferable to share a motor that drives the eccentric shaft of the hitting mechanism eccentrically as a driving source of the rotating mechanism. In this way, it is possible to perform acupressure massage such as turning the treatment element while applying pressure to the user with the treatment element, and it is not necessary to increase the motor for this purpose.

  Then, in the massage machine having the hit generation mechanism and the rotation mechanism, the treatment element attached to one end side of the support arm and swung by the hit generation mechanism, and the rotation mechanism on the other end side of the support arm. It is also preferable to include selection means for selecting the posture of the support arm so that either one of the treatment elements attached via the support element is positioned on the protruding direction side with respect to the other. By using such a selection means, it is possible to freely and easily select a tapping massage by swinging the treatment element and a shiatsu massage by turning the treatment element.

  The present invention has an effect of providing a massage machine that can freely combine the posture of the treatment element and the amount of protrusion, and that has a simple and compact strength adjustment mechanism.

  Hereinafter, the present invention will be described based on embodiments shown in the accompanying drawings. 1 to 9 show a massage machine of a first example in the embodiment of the present invention. 1 is a front view of the main part of the massage machine with the front cover 3 removed, and FIGS. 2, 3, and 4 are sectional views taken along lines AA, BB, and CC, respectively, in FIG. 5 is a cross-sectional view taken along the line DD in FIG.

  The massage machine of this example is a chair-type massage machine, and drives a treatment element 2 that protrudes forward from a backrest part 1 on which a user sitting on a seat part (not shown) leans. Thus, various massages such as itching and beating are performed on the shoulder and back of the user. The front and rear, left and right, and up and down directions used in the text are directions based on the user who is in the sitting state, the protruding direction of the treatment element 2 is the front, and the width direction in which the treatment elements 2 are arranged side by side is the above. It is provided so as to be in the left-right direction orthogonal to the protruding direction. In FIG. 1, the direction facing the left side in the figure is the lower side, and the direction facing the right side in the figure is the upper side. 2 to 5, the direction facing the left side in the figure is the front, that is, the protruding direction of the treatment element 2, and the direction facing the right side in the figure is the rear, that is, the direction opposite to the protruding direction of the treatment element 2.

  The backrest portion 1 of this example forms an outer shell with the front cover 3 and the back cover 4, and a pair of vertical travel guides 6, 6 extending in the vertical direction are erected in the interior. The upper and lower travel guides 6 and 6 are U-shaped rails arranged in parallel so that the opposing surfaces are open, and the entire treatment block 41 including the treatment element 2 and a mechanism for driving the treatment element 2 is adjusted up and down as will be described later. The mechanism is driven to advance and retract in the vertical direction along the vertical travel guides 6 and 6. The treatment block 41 includes a plurality (three in this example) of drive units 8 that are independently driven forward and backward in the front-rear direction with respect to the main body frame 7 constituting the skeleton. One treatment element block 40 is formed by a pair of left and right support arms 9, 9 connected to the drive unit 8, the main body arm 10, and the various treatment elements 2 attached to the arms 9, 10. One treatment element block 40 is installed on each of the left side and the right side, and the distance between the treatment element blocks 40 and 40 can be changed via a width adjusting mechanism described later.

  As shown in FIG. 5, the pair of left and right support arms 9, 9 provided in the vicinity of one treatment element block 40 has a shape bent in a square shape when viewed from the side, and is bent at the center. The portion 9a is rotatably connected to one of the three drive units 8 (hereinafter referred to as the first drive unit 8a) via the main body arm 10 and the central bent portion 9a. Is positioned on the rear side so that the upper arm portion 9b extending upward from the bent portion 9a protrudes obliquely upward and the lower arm portion 9c extending downward from the bent portion 9a protrudes obliquely downward and forward. Yes. Then, the outer side of the support arms 9 and 9 arranged in close proximity (that is, the right side in the right side treatment element block 40 as shown in FIG. 5 and the left side in the left side treatment element block 40). One end in the longitudinal direction of the long plate-like auxiliary arm 21 is rotatably connected to the upper arm portion 9b of the support arm 9 (hereinafter referred to as the support arm 45). The other end side in the direction is rotatably connected to one of the three drive units 8 other than the first drive unit 8a (hereinafter referred to as the second drive unit 8b). Further, the support arm 9 on the inner side (that is, on the left side in the right treatment element block 40 as shown in FIG. 5 and on the right side in the left driver element block 40) (hereinafter referred to as the support arm 46). One end side of the same auxiliary arm 21 is also rotatably connected to the lower arm portion 9c of the lower arm portion 9c, and the first drive of the drive unit 8 having three other end sides of the auxiliary arm 21 is provided. One unit other than the unit 8a and the second drive unit 8b (hereinafter referred to as the third drive unit 8c) is rotatably connected. The second drive unit 8b and the third drive unit 8c are supported by the main body frame 7 so as to be driven forward and backward in the front-rear direction with the first drive unit 8a interposed therebetween.

  As shown in FIGS. 2 and 5, the first drive unit 8a has two slide shafts 11 and 11 arranged in parallel in the front-rear direction, and a travel in which both slide shafts 11 and 11 are pivotally connected to each other. The main body is composed of the frame 12. Pinions 13 and 13 are fixed to the left and right ends of the slide shaft 11 on the rear side, respectively, and a strong and weak traveling guide having a U-shaped cross section is fixed to the left and right sides of the main body frame 7 so that the opposing surfaces are open. The pinions 13 and 13 are positioned in the 14 and 14, respectively. A rack 15 having a pitch direction in the front-rear direction is provided on the strong and weak traveling guide 14 so that the rack 15 and the pinion 13 are engaged with each other. In addition, traveling rollers 20 and 20 are fixed to the left and right ends of the front slide shaft 11, respectively. The traveling rollers 20 and 20 are located in the strength traveling guides 14 and 14, and the strength traveling guides 14 and 14. It is designed to rotate and move in the front-rear direction while being guided by.

  Further, a worm wheel 16 is fixed to the rear slide shaft 11, and a worm shaft 17 is screwed to the worm wheel 16 and a strength adjustment motor 38 is connected coaxially with the worm shaft 17. . A worm speed reducer 18 including a worm wheel 16 and a worm shaft 17 is supported in a gear box 19 fixed to the traveling frame 12, and a strength adjustment motor 38 is fixed to the traveling frame 12.

  With the above structure, when the strength adjustment motor 38 is rotationally driven in the forward and reverse directions, the rear slide shaft 11 is rotationally driven via the worm reducer 18, and the pinions 13 at both ends of the slide shaft 11 mesh with the rack 15. The travel frame 12 having the slide shaft 11 pivotally connected therethrough, that is, the first drive unit 8a as a whole is moved back and forth with respect to the main body frame 7. It will be driven forward and backward. Since the travel rollers 20 and 20 of the front slide shaft 11 and the pinions 13 and 13 of the rear slide shaft 11 move along the strength travel guides 14 and 14, the first drive unit 8a moves back and forth. Regulated only in direction.

  As shown in FIGS. 3 to 5, the second and third drive units 8 b and 8 c have the same configuration as the first drive unit 8 a, and the rear slide shaft is transmitted by power transmission from the strength adjustment motor 38. 11 is rotationally driven to drive the entire drive units 8b and 8c forward and backward in the front-rear direction with respect to the main body frame 7. Among the configurations of the second and third drive units 8b and 8c, the same components as those of the first drive unit 8a are denoted by the same reference numerals and description thereof is omitted, but the main components of the first drive unit 8a are omitted. The difference is that rotation shafts 22b and 22b are formed on both ends of the front slide shaft 11 so that the traveling rollers 20 and 20 are fixed and are rotatably connected to the traveling frame 12 and the rotation shafts 22b and 22b. The crankshaft 22 is formed of an eccentric shaft 22a formed in the center so as to be eccentric from the central shafts 22b, 22b, and the end of the auxiliary arm 21 is rotatably connected to the eccentric shaft 22a of the crankshaft 22. It is a point. The crankshaft 22 is connected to a tapping motor 24 fixed to the traveling frame 12 via a pulley decelerator 23 including a pulley or a belt. When the tapping motor 24 is driven to rotate, the pulley decelerator is driven. 23, the crankshaft 22 is rotationally driven, the central eccentric shaft 22a performs eccentric rotational movement, and the corresponding support arms 45, 46 are moved in the front-rear direction via the auxiliary arm 21 connected to the eccentric shaft 22a. It performs a rocking motion.

  In this example, as the treatment element 2 attached to the support arms 45 and 46, the treatment element 2 (hereinafter referred to as the upper treatment element 2b) provided at the distal end of the upper arm portion 9b is rotated about the horizontal axis. The treatment element 2 (hereinafter referred to as the lower treatment element 2c) provided at the tip of the lower arm portion 9c is convex forward and is fixed to the lower arm portion 9c. Shall. The front end surface of the upper treatment element 2b has the same area as the contact area of the tip of the four fingers of the human body, and the front end face of the lower treatment element 2c has the same area as the contact area of the tip of the thumb of the human body.

  The first drive unit 8a has two main body arms 10 extending in the front-rear direction so as to be connected to the left and right so as to be connected to the pair of slide shafts 11 and 11, and at the front end of each main body arm 10 is flat. A treatment element 2 having a front end surface (hereinafter referred to as a middle treatment element 2a) is fixed. Here, the main body arm 10 is provided so that the front-rear position of the middle treatment element 2a and the front-rear position of the upper-lower treatment elements 2b, 2c are approximately the same. Further, the front end surface of the middle treatment element 2a has an area approximately equal to the contact area of the palm of the human body, and three rollers 25 that are rotatable about a horizontal axis are arranged in parallel in the vertical direction on the front end surface. ing.

  Thus, in the treatment block 41 having the above-described configuration, the first to third drive units 8a to 8c are driven to advance and retract in the front-rear direction as described below, and the postures of the support arms 45 and 46 are changed. The posture and the protrusion amount of ˜2c can be changed.

  In FIG. 6, the case where the attitude | position and protrusion amount of the upper treatment element 2b are changed is shown. As shown in FIG. 6 (a), when the second drive unit 8b is moved forward with respect to the first drive unit 8a, the second drive unit 8b (in this example, an auxiliary interposed) The connecting portion between the arm 21 and the outer support arm 45 connected thereto acts as a power point, and the connecting portion between the first drive unit 8a and the support arm 45 serves as a fulcrum, and the upper arm portion 9b projects straight forward. Thus, the support arm 45 is rotationally driven, whereby the posture of the outer upper treatment element 2b is changed and the protrusion amount is increased. Further, as shown in FIG. 6B, when the third drive unit 8c is moved backward with respect to the first drive unit 8a, the third drive unit 8c (in the present example, intervenes). A connecting point between an auxiliary arm 21 and an inner support arm 46 connected to the auxiliary arm 21 serves as a power point, and a connecting point between the first drive unit 8a and the support arm 46 serves as a fulcrum, so that the upper arm portion 9b is straight forward. The support arm 46 is rotationally driven so as to protrude, thereby changing the posture of the inner upper treatment element 2b and increasing the protrusion amount. Then, as shown in FIG. 6C, when the second drive unit 8b is moved forward with respect to the first drive unit 8a and the third drive unit 8c is moved backward, the outer and inner supports are supported. Both the arms 45 and 46 are rotationally driven so that the upper arm portions 9b and 9b protrude straight forward, and both the outer and inner upper treatment elements 2b and 2b change the posture and increase the protruding amount.

  Similarly, as shown in FIG. 7A, when the second drive unit 8b is moved rearward with respect to the first drive unit 8a, the lower arm portion 9c is projected outwardly so that it projects straight forward. The support arm 45 is rotationally driven, whereby the posture of the outer lower treatment element 2c is changed and the protrusion amount is increased. Further, as shown in FIG. 7B, when the third drive unit 8c is moved forward with respect to the first drive unit 8a, the inner support is provided so that the lower arm portion 9b protrudes straight forward. The arm 46 is rotationally driven, whereby the posture of the inner lower treatment element 2c is changed and the protruding amount is increased. Then, as shown in FIG. 7C, when the second drive unit 8b is moved backward with respect to the first drive unit 8a and the third drive unit 8c is moved forward, the inner and outer supports are supported. Both the arms 45 and 46 are rotationally driven so that the lower arm portions 9c and 9c protrude straight forward, whereby both the outer and inner treatment elements 2c and 2c change the posture and increase the protrusion amount. is there.

  Also, as shown in FIG. 8, when the first to third drive units 8a to 8c are driven to move forward and backward while maintaining their relative positions, the support arms 45 and 46 and the treatment elements 2a to 2c The front-rear position, that is, the protrusion amount is changed while maintaining the posture.

  Here, in the forward and backward drive of the second and third drive units 8b and 8c as shown in FIG. 6 and FIG. 7, it is possible to change the posture and the protruding amount of the upper and lower treatment elements 2b and 2c. Thus, the protrusion amount is determined according to the posture. Further, in the forward / backward drive of the first to third drive units 8a to 8c as shown in FIG. 8, the protruding amount of each of the treatment elements 2a to 2c can be changed, but the posture cannot be controlled. . Therefore, if the first and third drive units 8a to 8c are combined with the forward / backward drive as shown in FIG. 6 or 7 and the forward / backward drive as shown in FIG. Alternatively, the posture and the protruding amount of the upper and lower treatment elements 2b and 2c can be freely changed. As described above, in the massage machine of this example, the support arm 45, 46, the first drive unit 8 a connected to both the support arm 45, 46 through the main body arm 10, and the auxiliary arm 21. The second treatment unit 8b connected only to the support arm 45 via the second arm and the third drive unit 8c connected only to the support arm 46 via the other auxiliary arm 21 to project the intermediate treatment element 2a. A strength adjustment mechanism for freely adjusting the amount, the posture of the upper treatment elements 2b, 2b and the lower treatment elements 2c, 2c and the protruding amount is formed.

  Further, in this example, since the upper and lower treatment elements 2b and 2c are respectively attached to the upper and lower ends sandwiching the connecting portion of the support arms 45 and 46 with the first drive unit 8a as described above, FIG. As shown in a), both the second drive unit 8b and the third drive unit 8c are moved forward with respect to the first drive unit 8a, so that the outer support arm 45 is moved downward by the upper treatment element 2b. At the same time, the inner support arm 46 is rotationally driven so as to move obliquely forward, and the lower treatment element 2c is rotationally driven so that the lower treatment element 2c moves obliquely forward, and the outer upper treatment element 2b and the inner lower treatment element 2c. It is possible to hold the user's shoulder with the two treatment elements 2b and 2c when approaching. FIG. 9B shows a case where both the second drive unit 8b and the third drive unit 8c are moved rearward with respect to the first drive unit 8a. When the child 2b and the lower lower treatment element 2c approach each other, the user's shoulder can be grasped by the treatment elements 2b and 2c.

  9 (a) and 9 (b), the sense of the user at the time of grasping the shoulder is a roller, and the upper treatment element 2b having a contact surface like four fingers is used to hold the shoulder from above. The lower treatment element 2c that is graspable and convex and has a contact surface like a thumb can feel the shoulder from below, but the shape of the upper treatment element 2b and the lower treatment element 2c is changed to the inner side of the outer support arm 45 and the inner side. By changing the support arm 46, the treatment sensation can be changed between the case of FIG. 9A and the case of FIG. 9B. Further, when the distances from the connecting portion of the first drive unit 8a to the upper treatment element 2b and the lower treatment element 2c are different between the support arm 45 and the support arm 46, the case of FIG. The treatment site can be changed in the case of FIG. 9B, and shoulder grip massage can be performed in a wide treatment range.

  Further, in this example, a hitting mechanism comprising a crankshaft 22 having an eccentric shaft 22a at the center and a hitting motor 24 for rotating the crankshaft 22 to drive the eccentric shaft 22a, Since the support arms 45 and 46 are provided for each of the drive units 8b and 8c connected via the auxiliary arms 21 and 21, the hit generation mechanism provided corresponding to the support arm 45 side and the support arm 46 side are provided. This occurs only in the case where both the supporting arms 45 and 46 are swung by rotating the tapping motors 24 and 24 of both tapping generating mechanisms provided for the tapping mechanism and corresponding to one side. The treatment area of the tapping massage can be made different when the motor 24 is rotated and only one of the support arm 45 and the support arm 46 is swung. Further, when the phase of the rocking motion to be generated is changed for each hit generation mechanism, more various hitting massages are realized.

  Next, a vertical adjustment mechanism that drives the entire treatment block 41 to move back and forth in the vertical direction, and a width adjustment that makes the distance between the pair of treatment element blocks 40, 40 arranged in the horizontal direction in the treatment block 41, that is, the width variable. The mechanism will be described.

  As shown in FIG. 1, as a main part of the vertical adjustment mechanism, a slide shaft 26 extending in the left-right direction is pivotally connected to the upper end portion of the main body frame 7 constituting the skeleton of the treatment block 41, and Racks with pinions 27 and 27 fixed to the left and right ends located in the U-shaped traveling guides 6 and 6 each having a U-shaped cross section and the vertical direction protruding from the inner surfaces of the upper and lower traveling guides 6 and 6 as the pitch direction As a mechanism for rotating the slide shaft 26, the worm speed reduction mechanism comprising a worm wheel fixed to the slide shaft 26 and a worm shaft screwed with the worm wheel is used. And a vertical adjustment motor 30 connected coaxially with the worm shaft of the worm reduction gear 29. The worm reducer 29 is supported in a gear box (not shown) fixed to the main body frame 7, and the vertical adjustment motor 30 is fixed to the main body frame 7. A support shaft 31 extending in the left-right direction is fixed to the lower end portion of the main body frame 7, and traveling rollers 32, 32 are rotatably connected to the left and right ends of the support shaft 31. The traveling rollers 32 and 32 are positioned in the vertical traveling guides 6 and 6 and are rotated and moved in the vertical direction while being guided by the vertical traveling guides 6 and 6.

  With the vertical adjustment mechanism having the above-described configuration, when the vertical adjustment motor 30 is rotationally driven in the forward and reverse directions, the slide shaft 26 is rotationally driven via the worm speed reducer 29, and the pinions 27 at both ends of the slide shaft 26 are 27 is engaged with the racks 28, 28 while rotating in the vertical direction in the vertical travel guides 6, 6, so that the main body frame 7, that is, the entire treatment block 41, through which the slide shaft 26 is pivotally connected, is connected to the back. It will be driven back and forth in the up and down direction within the drooping portion 1. Since the travel rollers 32 and 32 of the support shaft 31 and the pinions 27 and 27 of the slide shaft 26 move along the vertical travel guides 6 and 6, the movement of the treatment block 41 is restricted only in the vertical direction.

  The width adjustment mechanism is as follows. As shown in FIGS. 2 and 5, the traveling frame 12 of the first drive unit 8 a is rotated at a position where a feed screw shaft 33 extending in the left-right direction is sandwiched between the pair of slide shafts 11, 11 in the front-rear direction. It is freely through-connected. The feed screw shaft 33 has a left half and a right half formed in a reversely wound screw, and the feed screw shaft 33 is fixed to the feed nut 34 fixed to the body arm 10 of the left treatment element block 40. The left half is screwed, and the right half of the feed screw shaft 33 is screwed to the feed nut 35 fixed to the main body arm 10 of the right treatment element block 40. A width adjusting motor 37 is fixed to the traveling frame 12, and the feed screw shaft 33 and the width adjusting motor 37 are connected via a pulley speed reducer 36 formed of a pulley or a belt.

  By providing the width adjusting mechanism having the above configuration, when the width adjusting motor 37 is driven to rotate in the forward and reverse directions, the feed screw shaft 33 is driven to rotate via the pulley speed reducer 36. Since the body arms 10 and 10 of the left and right treatment element blocks 40 and 40 are restricted by a pair of slide shafts 26 and 26, respectively, and cannot move except in the left-right direction, the feed screw shaft 33 is rotated. As a result, the main body arms 10 and 10 move in directions toward or away from each other. Here, since the auxiliary arms 21 and 21 of the left and right treatment element blocks 40 and 40 are slidably connected to the corresponding drive units 8b and 8c in the left and right direction, the left and right treatment element blocks 40 and 40 are As the feed screw shaft 33 rotates, the main body arm 10 moves in a direction toward or away from each other. When the width adjusting motor 37 is stopped, the main body arms 10 and 10 are temporarily fixed at the position at the time of stopping, and the width between the treatment element blocks 40 and 40 is determined. That is, the width adjustment mechanism can select whether to reduce or enlarge the width between the left and right treatment element blocks 40 by switching the rotation direction of the width adjustment motor 37 forward and reverse.

  Next, the massage machine of the second example in the embodiment of the present invention will be described with reference to FIG. 10, but the same components as those of the first example will be denoted by the same reference numerals and description thereof will be omitted. Only different configurations will be described with different reference numerals. In this example, the outer and inner support arms 45 and 46 are not connected to the second and third drive units 8b and 8c via the auxiliary arms 21 and 21, respectively, as in the first example. 45 and the second drive unit 8b are connected at the distal end portion of the extension arm 50 integrally extending backward and upward from the support arm 45 in the longitudinal direction. And an eccentric shaft 22a portion of the crankshaft 22 of the second drive unit 8b is directly connected to the long hole 51 so as to be slidable and rotatable along the long hole 51. Structure. Further, in the support arm 46 and the third drive unit 8c, the extension arm 50 is extended obliquely downward and rearward from the support arm 46, and the same structure as the above structure on the support arm 45 side is provided. Are directly connected so as to be slidable and rotatable. With the above configuration, the number of parts and the number of assembly steps are reduced in the massage machine of this example. The same effect can be obtained by connecting the support arms 45, 46 and the first drive unit 8a in a slidable and rotatable manner.

  Next, the massage machine of the third example in the embodiment of the present invention will be described with reference to FIG. 11, but the same components as those of the first example will be denoted by the same reference numerals and description thereof will be omitted. Only different configurations will be described with different reference numerals. In this example, the hitting mechanism is not provided in a one-to-one correspondence for each of the support arms 45 and 46 as in the first example, but includes a crankshaft 60, a pulley speed reducer 61, and a hitting motor 62. The first drive unit 8a is provided with a hitting mechanism similar to that of the first example, and the support arms 45 and 46 are connected together to the eccentric shaft 60a portion of the crankshaft 60 located at the tip of the first drive unit 8a. ing. The support arms 45 and 46 are simultaneously rocked and driven by the eccentric rotational movement of the eccentric shaft 60a portion of the crankshaft 60, thereby enabling tapping massage by the outer and inner upper and lower treatment elements 2b and 2c. In other words, in this example, a hitting mechanism is provided at a common connection location of the first drive unit 8a to which the support arms 45 and 46 are connected together. The number of points and the assembly process are reduced.

  Next, the massage machine of the fourth example in the embodiment of the present invention will be described based on FIG. 12 and FIG. 13, but the same components as those of the first example will be denoted by the same reference numerals, and the description thereof will be omitted. Only configurations different from the one example will be described with different reference numerals. The support arm 70 on the inner side in this example is bent in a square shape so that a central bent portion 70a rotatably connected to the first drive unit 8a is located on the rear side. A roller-shaped upper treatment element 2b is attached to the upper arm portion 70b extending upward and obliquely forward from the bent portion 70a via a link mechanism described later, and the rotation described later is applied to the lower arm portion 70c extending obliquely forward and downward from the bent portion 70a. A projection-like lower treatment element 71 such as the tip of a thumb is attached via a mechanism.

  As shown in the figure, the slide shaft 11 on the front side of the third drive unit 8c of this example does not have the eccentric shaft 22a portion as in the first example, and one end of the auxiliary arm 21 is attached to this slide shaft 11. The other end of the auxiliary arm 21 is rotatably connected to the lower arm portion 70 c of the support arm 70. A key groove 72 (or spline) extending in the left-right direction is formed in the slide shaft 11, and a slide pulley 73 that is rotatably connected to the tip of the auxiliary arm 21 is slid so as to fit in the key groove 72. The slide pulley 73 is slidable in the left-right direction integrally with the auxiliary arm 21 by being fitted to the shaft 11 and is driven to rotate integrally with the slide shaft 11.

  A pulley 75 and a worm shaft 76 are coaxially and integrally provided on a rotating shaft 74 interposed at a connecting portion between the auxiliary arm 21 and the support arm 70. The pulley 75 is connected to the slide pulley 73 via a belt 84, and the worm shaft 76 is connected to a rotation mechanism provided in the lower arm portion 70c. The rotating mechanism includes a worm wheel 79 that is rotatably incorporated in the lower arm portion 70 c via a gear box 77 and a bearing 78 so as to be screwed to the worm shaft 76, and a front-rear direction integrally with the worm wheel 79. The rotating plate 80 rotates around a substantially parallel axis. The lower treatment element 71 is fixed to the rotating plate 80 at a position eccentric from the rotation center axis of the rotating plate 80 and protrudes forward. Yes.

  An eccentric shaft 81 is fixed to the pulley 75 at a position eccentric from the rotation center axis of the pulley 75, and the eccentric shaft 81 and the upper treatment element 2b are connected via a link mechanism. The link mechanism has an upper end side of a first link 82 having an eccentric shaft 81 rotatably connected to a lower end side thereof, and a central portion thereof rotatably supported by a distal end portion of an upper arm portion 70b and one end side. In this structure, the rotational movement of the eccentric shaft 81 is converted into the swinging movement of the upper treatment element 2b by rotatably connecting the lower end side of the second link 83 to which the upper treatment element 2b is attached. is there.

  When the tapping motor 24 provided in the third drive unit 8 c is driven to rotate, the slide pulley 73 is driven to rotate via the pulley speed reducer 23 and the slide shaft 11, and the pulley 75 is driven via the belt 84. Is driven to rotate. As the pulley 75 is driven to rotate, the worm shaft 76 is driven to rotate and the eccentric shaft 81 is driven to rotate eccentrically. Due to the rotational movement of the worm shaft 76, the lower treatment element 71 performs a turning movement about an axis substantially parallel to the front-rear direction via the rotation mechanism, and the upper treatment element 2b is linked to the link mechanism by the eccentric rotation movement of the eccentric shaft 81. A swinging motion, that is, a hitting motion to the user, is performed via That is, in this example, the tapping generation motor 24 that drives the eccentric shaft 81 of the tapping generation mechanism to rotate eccentrically is used as a drive source of the rotation mechanism for turning the lower treatment element 71.

  When the shoulder gripping operation as shown in FIG. 9A of the first example is performed using the massage machine of this example, the roller-shaped upper treatment element 2b of the outer support arm 45 and the inner support arm 70 are used. The lower treatment element 71 can be swung at the same time as grasping the shoulder with the lower treatment element 71 of the protrusion, so that the thumb is swung at the same time as grasping the shoulder between the four fingers and the thumb Massage is possible.

  Moreover, in the massage machine of this example, it is also preferable to provide a selection button for selecting one of the hitting massage by the upper treatment element 2 b and the turning massage by the lower treatment element 71. This selection button is attached to the inner support arm 70 so that either one of the upper treatment element 2b that performs the tapping movement as described above and the lower treatment element 71 that performs the turning movement is positioned in front of the other. The selection means for selecting the posture of the support arm 70. For example, if the selection button “tapping massage” is pressed, the posture of the support arm 70 is changed so that the upper treatment element 2b protrudes forward from the lower treatment element 71. If the “turning massage” is pressed, the posture of the support arm 70 is changed so that the lower treatment element 71 protrudes further forward than the upper treatment element 2b. By providing a control device (not shown) so as to rotate the tapping motor 24 in such a case, the user can easily select a massage.

  Next, the massage machine of the fifth example in the embodiment of the present invention will be described with reference to FIG. 14, but the same components as those of the first example will be denoted by the same reference numerals and the description thereof will be omitted. Only different configurations will be described with different reference numerals. In this example, one of the support arms 45, 46 provided in the treatment element block 40 (support arm 45 in the illustrated example) is attached with a rotatable roller-type upper treatment element 2 b and the other (supported in the illustrated example). A flat plate-type upper treatment element 90 is fixedly attached to the arm 46). When the same posture is maintained such that both support arms 45 and 46 overlap each other when viewed from the side, the roller-type upper treatment element 2b is positioned above and in front of the flat plate-type upper treatment element 90. The left and right upper treatment elements 2b and 90 are attached. By setting it as the said structure, when moving the treatment element block 40 whole upwards, the malfunction that the upper treatment elements 2b and 90 will be caught in the fabric part which covers a massage machine can be prevented.

It is a principal part front view of the state which removed the front cover of the massage machine of the 1st example in the embodiment of the present invention. It is the sectional view on the AA line of FIG. It is the BB sectional view taken on the line of FIG. It is CC sectional view taken on the line of FIG. It is the DD sectional view taken on the line of FIG. It is explanatory drawing which shows the attitude | position and protrusion amount change of the upper treatment element with which a treatment element block same as the above is provided, (a), (b), when changing the posture of one upper treatment element and increasing the protrusion amount, (C) is a case where the amount of protrusion is increased by changing the posture of both upper treatment elements. It is explanatory drawing which shows the attitude | position and protrusion amount change of the lower treatment element with which a treatment element block same as the above is shown, (a), (b), when changing the attitude | position of one lower treatment element and increasing protrusion amount, (C) is a case where the attitude | position of both lower treatment elements is changed and protrusion amount is increased. It is explanatory drawing which shows the case where the protrusion amount of the whole treatment element block same as the above is changed. It is explanatory drawing of the shoulder grabbing massage performed by the treatment element block same as the above, (a) is performed by the outer upper treatment element and the inner lower treatment element, and (b) is the inner upper treatment element and the outer lower treatment. This is the case with children. The massage machine of the 2nd example in embodiment of this invention is shown, and it is sectional drawing corresponding to FIG. 5 of a 1st example. The massage machine of the 3rd example in an embodiment of the invention is shown, and it is a sectional view corresponding to Drawing 5 of the 1st example. The massage machine of the 4th example in an embodiment of the invention is shown, and it is a sectional view corresponding to Drawing 5 of the 1st example. The massage machine same as the above is shown and it is sectional drawing corresponding to FIG. 4 of a 1st example. The massage machine of the 5th example in an embodiment of the invention is shown, and it is a sectional view corresponding to Drawing 5 of the 1st example.

Explanation of symbols

2 treatment element 2a middle treatment element 2b upper treatment element 2c lower treatment element 8 drive unit 8a first drive unit 8b second drive unit 8c third drive unit 9 support arm 21 auxiliary arm 22a eccentric shaft 24 tapping generating motor 60a Eccentric shaft 62 Tapping generation motor 80 Turntable 81 Eccentric shaft

Claims (12)

  In a massage machine having a strength adjustment mechanism for adjusting the protrusion amount of a treatment element, the strength adjustment mechanism is connected to a support arm to which the treatment element is attached at least on one end side, and is rotatably connected to the support arm. A massage machine comprising: a plurality of drive units that are driven back and forth in the protruding direction of the child, and changing the posture and position of the support arm in accordance with a change in position of the plurality of drive units.   The strength adjustment mechanism includes a pair of support arms, a first drive unit coupled to both of the pair of support arms, a second drive unit coupled to one of the pair of support arms, and a pair of support arms. And a third drive unit coupled to the other of the first and third drive units, and the posture and position of each support arm are changed in accordance with a change in position of the first to third drive units. The massage machine according to 1.   The pair of support arms are arranged in parallel in the left-right direction substantially perpendicular to the protruding direction of the treatment element, and the treatment element is attached to both ends sandwiching the connection point with the first drive unit. The massage machine according to claim 2.   Of the pair of support arms, the treatment element on the upper end side of one support arm is a rotatable roller-type treatment element, the treatment element on the upper end side of the other support arm is a flat plate-type treatment element, and both support arms 4. The massage machine according to claim 3, wherein the roller type treatment element is provided above the flat plate type treatment element when the same posture is maintained.   The massage machine according to any one of claims 1 to 4, wherein the support arm and at least one drive unit connected to the support arm are slidably and rotatably connected.   5. The support arm and at least one drive unit connected to the support arm are connected via an auxiliary arm that is rotatable with respect to the support arm and the drive unit. A massage machine according to claim 1.   A tapping generating mechanism comprising an eccentric shaft interposed at a connecting portion between the support arm and the drive unit, or a connecting portion between the auxiliary arm and the drive unit or the support arm, and a motor that drives the eccentric shaft to rotate eccentrically is provided. The massage machine according to claim 6.   The massage machine according to claim 7, wherein the hitting mechanism is provided for each of the support arms in a structure including a plurality of support arms.   An apparatus comprising: a plurality of support arms; and a drive unit in which at least two of the plurality of support arms are rotatably connected at a common connection location. The massage machine according to claim 7, further comprising:   The support arm is provided with a rotation mechanism that rotates about an axis substantially parallel to the protruding direction of the treatment element on at least one end side of the support arm, and the treatment element is attached to the rotation mechanism. The massage machine according to one item.   At least one end of the support arm is provided with a rotation mechanism that rotates about an axis substantially parallel to the protruding direction of the treatment element. The treatment element is attached to the rotation mechanism, and the eccentric shaft of the hitting mechanism is used as a drive source for the rotation mechanism. The massage machine according to any one of claims 7 to 9, wherein a motor that drives the shaft to rotate eccentrically is shared. One of the treatment element attached to one end side of the support arm and swung by the hitting mechanism, and the treatment element attached to the other end side of the support arm via the rotation mechanism is on the protruding direction side than the other. The massage machine according to claim 11, further comprising selection means for selecting a posture of the support arm so as to be positioned on the body.

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