JP2015116273A - Massage unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a massage unit capable of changing the degrees of projection of upper and lower treatment elements with a simple configuration.SOLUTION: A massage unit includes: treatment elements 62b; a pair of right ane left support arms 62a for vertically supporting the treatment elements 62b; a massage shaft 73 for supporting the support arms 62a to be swingable in a front and rear direction and also allowing the treatment elements 62b to move in a right and left direction to perform massage operations; a patting shaft 76 for allowing the treatment elements 62b to move in the front and rear direction to perform patting operations; and connection members 79 for connecting the patting shaft 76 to the support arms 62a and transmitting driving by the patting shaft 76 to the support arms 62a. The connection members 79 are configured to be expandable to permit the swing of the support arms 62a in the front and rear direction.

Description

  The present invention relates to a massage unit.

  2. Description of the Related Art Conventionally, a chair type massage machine provided with a massager provided on a backrest part so as to be movable up and down is known. In this massage device, a support arm having upper and lower treatment elements attached thereto is swingably connected to a drive arm connected to a kneading operation shaft. The drive arm is connected to the hitting operation shaft via a ball joint and a connecting arm. The massage device configured as described above can change the protrusion degree of the upper and lower treatment elements by swinging the support arm in accordance with the undulation of the user's back (for example, FIG. (See FIG. 12).

JP 2001-218809 A

  The chair type massage machine 1 disclosed in Patent Document 1 has a problem in that the number of parts increases because a drive arm is additionally provided to enable the support arm to swing. Then, this invention is made | formed in order to solve the problem mentioned above, and it aims at providing the massage unit which can change the protrusion degree of an upper and lower treatment element with simple structure.

The present invention provides a treatment element, a pair of left and right support arms that support the treatment element up and down, supports the support arm so as to be swingable in the front-rear direction, and operates the treatment element in the left-right direction to squeeze. A kneading shaft, a tapping shaft for moving the treatment element in the front-rear direction, a tapping shaft, and the tapping shaft and the support arm are connected to transmit the driving by the tapping shaft to the support arm. A connecting member, wherein the connecting member is configured to be extendable and retractable so as to allow the support arm to swing in the front-rear direction.
By adopting such a configuration, the connecting member can be expanded and contracted without providing a drive arm, so that the support arm can be allowed to swing around the stagnation axis, and the configuration of the massage unit can be simplified. .

Moreover, it is preferable to have a biasing means for biasing the connecting member in the extending direction or the contracting direction.
By setting it as such a structure, a treatment element can be made to contact | abut appropriately according to the undulation of a to-be-treated part.

Moreover, it is preferable to have resistance provision means for imparting resistance to the expansion or contraction operation of the connecting member.
By setting it as such a structure, when a massage unit moves along a treatment part, it can prevent that a support arm rock | fluctuates rapidly by the change of the undulation of a treatment part. Thereby, a treatment element does not contact a treatment part violently and does not give discomfort.

Moreover, it is preferable that the said connection member has a cylindrical part which has a cavity inside, and an operation | movement part which reciprocates inside this cylindrical part.
By setting it as such a structure, a connection member can be expanded-contracted stably.

The connecting member is connected to the support arm behind the squeezing shaft, and the biasing means is provided between the cylindrical portion and the operating portion, and the connecting member is extended in the extending direction. It is preferable to energize.
With such a configuration, the upper treatment element can be urged forward, which is suitable for massaging the shoulder.

Further, the connecting member may have a gas damper structure in which a communication hole for communicating the cavity with the atmosphere is provided in the cylindrical portion.
By setting it as such a structure, when a massage unit moves along a treatment part, it can prevent that a support arm rock | fluctuates rapidly by the change of the undulation of a treatment part. Thereby, a treatment element does not contact a treatment part violently and does not give discomfort.
In addition, for slow movements such as the lifting and lowering movements of the massage unit and the squeezing movement, the reaction force from the treatment part causes the air in the cylindrical part to escape from the communication hole, depending on the undulation of the treatment part. The support arm can swing. On the other hand, for a quick operation such as a hitting operation, it is possible to prevent the hitting operation from being absorbed by the connecting member without the air in the cylindrical portion being removed from the communication hole.

Moreover, it is preferable that the said massage unit can be raised-lowered along a user's height direction.
By setting it as such a structure, it can massage over a wide range.

  According to the present invention, the degree of protrusion of the upper and lower treatment elements can be changed with a simple configuration.

It is a perspective view of a massage machine concerning one embodiment of the present invention. It is a perspective view of the massage machine seen from the angle different from FIG. It is a side view of the massage machine in a standing state. It is a side view of the massage machine in a reclining state. It is a perspective view which shows a base, a locking mechanism part, and a foot link member. It is a side view which shows the motor of a rocking drive part. It is a functional block diagram of a massage machine. It is a perspective view of a massage unit when a movement frame exists in a retreat position. It is a perspective view of a massage unit when a movement frame exists in a protrusion position. It is a front view of a massage unit when a movement frame exists in a retreat position. It is an exploded plan view of the massage unit when the moving frame is in the retracted position. It is a side view of a massage unit when a movement frame exists in a retreat position. It is a side view of a massage unit when a movement frame exists in a protrusion position. It is a side view of a massage unit in the state where a connection member extended. It is a side view of a massage unit in the state where a connection member contracted. It is a schematic diagram of a connection member, (a) has shown the expanded state, (b) has shown the contracted state. It is a schematic side view which shows the use condition of a massage machine. It is sectional drawing of the connection member which concerns on other embodiment (the 1), (a) has shown the state which the connection member expanded, (b) has shown the state which the connection member contracted. It is sectional drawing of the connection member which concerns on other embodiment (the 2), (a) is the state which the connection member expanded, (b) has shown the state which the connection member contracted.

[overall structure]
Hereinafter, the whole structure of the massage machine 1 which concerns on 1st Embodiment of this invention is demonstrated. FIG. 1 is a perspective view of a massage machine 1 according to an embodiment of the present invention. FIG. 2 is a perspective view of the massage machine 1 viewed from an angle different from that in FIG. FIG. 3 is a side view of the massage machine 1 in a standing state. FIG. 4 is a side view of the massage machine 1 in the reclining state. FIG. 5 is a perspective view showing the base 7, the locking mechanism portion 8, and the foot link member 50. FIG. 6 is a side view showing the motor 32 of the locking drive unit 31. FIG. 7 is a functional block diagram of the massage machine 1.

As shown in FIG. 1, the massage machine 1 of the present invention mainly includes a seat portion 3 on which a user is seated, a backrest portion 4 that is integrally provided at a rear portion of the seat portion 3 and a user can lean on, and a seat. The chair body 2 is composed of a footrest 5 that supports a user's leg portion provided at the front of the section 3 so as to be pivotable up and down, and supports the chair body 2 so that the chair body 2 can swing back and forth. A base 7 installed on the surface, a locking mechanism 8 that swings the chair body back and forth with respect to the base, and massage parts 9 to 12 that massage the user's treatment part provided in the chair body 2 doing.
In addition, the concept of the direction used by the following description shall correspond with the concept of the direction when it sees from the user seated on the massage machine 1 in the standing state shown in FIG. 3, and the left hand side is "left", The right hand side is “right”, the head side is “upper”, the waist side is “lower”, and other cases will be described as appropriate.

[Configuration of seat and backrest]
As shown in FIG. 1, the seat portion 3 and the backrest portion 4 are integrally formed to constitute a first body support portion 20. The first body support part 20 is disposed in front of the first body support part body 21 having a first body support part body 21 having an opening 21 a that continuously opens from the seat part 3 to the backrest part 4. And a pad portion (not shown) having elasticity. The first body support unit 20 is provided with a rack 22 that supports a massage unit 9 to be described later so as to be movable up and down in the height direction. The rack 22 is paired on the left and right sides, has a tooth row on the user side, and extends in the height direction from the front end portion of the seat portion 3 to the upper end portion of the backrest portion 4.

  The first body support unit 20 is driven by an elevating motor M1 (see FIG. 7) via a rack 22 provided in the first support unit body 21 in the opening 21a of the first body support unit body 21. A mechanical massage unit 9 is provided as a massage part that is provided so as to be able to move up and down, and that massages continuously from the back of the user to the thigh as shown by a one-dot chain line through a pad part (not shown). . This massage unit 9 has a massage means 62 that makes a pair on the left and right, and can perform a squeezing operation to move the pair of massage means 62 close to and away from each other in the left-right direction by driving a massage motor M2 (see FIG. 7). In addition, it is possible to perform a hitting operation in which the pair of massage means 62 are alternately advanced and retracted in the front-rear direction. These motors M1 and M2 are driven by a controller 13 (see FIG. 7) provided below the seat 3.

  The seat portion 3 has side walls 3a and 3a that are paired on the left and right sides that face the outer surface of the user's buttocks or thigh, and a massage portion that massages the buttocks or thighs on the inner surface of the side wall 3a. An air cell 10 is provided. The backrest portion 4 has side walls 4a and 4a that are paired on the left and right sides that face the outer surface of the user's upper arm portion, and an air cell 11 as a massage portion that massages the upper arm portion is provided on the inner surface of the side wall 4a. Is provided.

  In addition, as shown in FIG. 2, the bottom of the first body support portion 20 (chair body 2) has an accommodation groove 23 a that opens downward to accommodate at least a part of the locking mechanism portion 8 described later. A housing portion 23 is provided. The accommodation groove 23 a is continuously opened from the seat portion 3 to the lower portion of the backrest portion 4 in order to prevent interference between the locking mechanism portion 8 and the first body support portion 20 accompanying the movement of the locking mechanism portion 8. Yes.

[Composition of footrest]
As shown in FIG. 1, the footrest 5 includes a bottom wall 5a on which a user's leg is placed, and side walls 5b and 5b that are paired on the left and right opposite to the outer surface of the user's leg, An air cell 12 is provided on the front surface of the bottom wall 5a and the inner surface of the side wall 5b as a massage part for massaging the legs. Each of the air cells 10 to 12 is configured to expand and contract by air supply / exhaust from an air supply / exhaust device 14 (see FIG. 7) including a pump and a valve disposed below the seat portion 3. The drive of the air supply / exhaust device 14 is controlled by the control unit 13. The control unit 13 and the air supply / exhaust device 14 provided on the lower surface of the seat 3 are covered from below by a cover member 15 so as not to be exposed to the outside. The footrest 5 is connected to the front portion of the seat portion 3 through a hinge 24 so as to be vertically rotatable, and the seat portion 3 (first body support portion 20) via a foot link member 50 described later in detail. ) And is configured to rotate up and down in conjunction with the swinging back and forth of the chair body 2. The footrest 5 is attached to the seat portion 3 via a bracket 25 pivotally supported by the hinge 24.

[Base configuration]
As shown in FIGS. 2 to 5, the base 7 includes a pair of leg frames 7 a and 7 a installed on the floor surface arranged with a predetermined distance in the left and right direction, and both leg frames 7 a and 7 a with the left and right direction as an axial direction. And a plurality of shafts 7b to 7d connecting the two. A caster 26 for rolling the floor surface is provided at the rear part of the leg frame 7a, and the massage machine 1 can be easily moved by lifting the front part of the massage machine 1. The shafts 7b to 7d are pivotally supported by members that constitute a locking mechanism portion 8 for swinging the chair body 2 back and forth. These shafts 7b to 7d are a first shaft 7b located at the foremost position, a second shaft 7c located behind the first shaft 7b, and a third position located between the first shaft 7b and the second shaft 7c. This is the shaft 7d.

[Composition of massage unit]
Hereinafter, the configuration of the massage unit 9 will be described. FIG. 8 is a perspective view of the massage unit 9 when the moving frame 61 is in the retracted position. FIG. 9 is a perspective view of the massage unit 9 when the moving frame 61 is in the protruding position. FIG. 10 is a front view of the massage unit 9 when the moving frame 61 is in the retracted position. FIG. 11 is an exploded plan view of the massage unit 9 when the moving frame 61 is in the retracted position. FIG. 12 is a side view of the massage unit 9 when the moving frame 61 is in the retracted position. FIG. 13 is a side view of the massage unit 9 when the moving frame 61 is in the protruding position.

  The massage unit 9 mainly includes a base frame 60 supported by the rack 22 so as to be movable up and down, a moving frame 61 provided so as to be able to advance and retreat to the user side with respect to the base frame 60, and a user provided on the moving frame 61. Massaging means 62 for massaging the body of the body and an advancing / retreating air cell 63 for displacing the moving frame 61 to an advancing / retreating position intended by the user at any lift position.

  The base frame 60 includes a pair of side walls 60a, an upper wall 60b that connects the upper parts of the pair of side walls 60a, a lower wall 60c that connects the lower parts of the pair of side walls 60a, a side wall 60a, an upper wall 60b, and a lower wall 60c. A rear wall 60d that connects the rear portions of each of the rear portions is used to form a box shape whose front is opened. Below the both side walls 60a, a lifting drive shaft 64 that is linked to the lifting motor M1 and having a horizontal direction as an axial direction is pivotally supported, and pinions 65 that mesh with the rack 22 at both left and right ends of the lifting drive shaft 64. Is provided. Further, behind the pinion 65, a guide roller 66 is supported by the side wall 60 a that rolls on the surface (rear surface) opposite to the user side of the rack 22 with the left-right direction being the axial direction. That is, the rack 22 is sandwiched from the front and rear by the pinion 65 and the guide roller 66. On the upper part of both side walls 60 a, an elevating driven shaft 67 that is driven by driving the pinion 65 is supported in the left-right direction, and a pinion 68 is also provided on the outer end of the elevating driven shaft 67. A guide roller 69 is similarly provided behind the pinion 68. The rack 22, the pinions 65 and 68, and the guide rollers 66 and 69 constitute a guide mechanism that guides the massage unit 9 relative to the first body support unit 20.

  The moving frame 61 is opened front and lower by a pair of side walls 61a, an upper wall 61b that connects the upper portions of the pair of side walls 61a, and a rear wall 61d that connects the rear portions of the side walls 61a and 61b. The moving frame 61 is provided with a massaging means 62 for massaging a treatment portion and a drive mechanism portion 70 for driving the massaging means 62. The massage means 62 has a substantially triangular support arm 62a in side view and a treatment element 62b supported by the upper and lower end portions (vertices) of the support arm 62a and in contact with the treatment portion. It is made up of. The moving frame 61 accommodates the drive mechanism 70 and detected portions 83b to 86b of various sensors 83 to 86 described later, and a substrate 88 described later is attached to the outside (the upper surface of the upper wall 61b). ing. That is, since the components for driving and controlling the massage unit 9 are assembled and assembled to the moving frame 61, it contributes to simplification and cost reduction of the massage unit 9.

  The drive mechanism unit 70 includes a kneading drive mechanism 71 that moves the pair of support arms 62a close to and away from each other to perform a kneading operation, and a tapping drive mechanism that performs a tapping operation by alternately swinging the pair of support arms 62a back and forth. 72. The kneading drive mechanism 71 has a kneading shaft 73 that supports the support arm 62a via the tilt cam 74 in the left-right direction, a massage motor M2 that rotates the kneading shaft 73, and the rotational power of the massage motor M2. And a speed reducer 75 that decelerates and transmits to the stagnation shaft 73.

  The tapping drive mechanism 72 includes a tapping shaft 76 whose axial direction is the left and right direction, a massage motor M2 that rotates the tapping shaft 76, and a speed reducer 77 that reduces the rotational power of the massage motor M2 and transmits it to the tapping shaft 76. And a connecting member 79 that is attached to the shaft end of the hitting shaft 76 via an eccentric cam 78 that is eccentric with respect to the axis of the hitting shaft 76 and connects the hitting shaft 76 and the support arm 62a. . The kneading shaft 73 and the hitting shaft 76 are driven by a common massage motor M2, and when the massage motor M2 is rotated in one direction by the clutch 80 provided on the hitting shaft 76. The hitting shaft 76 is idled so that only the rubbing shaft 73 rotates, and when it is rotated to the other, both the rubbing shaft 73 and the hitting shaft 76 rotate.

  The mounting structure of the support arm 62a and the tilt cam 74 will be described in detail. As shown in FIGS. 10 and 11, the support arm 62a is attached to the tilt cam 62a via a bearing 81 that is externally fitted to the outer periphery of the tilt cam 74. It is attached to be rotatable. Since the left and right inclined cams 74 are inclined in opposite directions so as to form a reverse letter C in plan view, when the squeezing shaft 73 is rotated, the left and right support arms 62a are moved closer to and away from each other. Will be done. In addition, since the support arm 62a is directly attached to the massage shaft 73 without using a connecting rod (drive arm), it is possible to perform a strong massage for the user and simplify the structure of the massage unit 9. can do.

[Composition of connecting members]
Hereinafter, the configuration of the connecting member 79 will be described. FIG. 14 is a side view of the massage unit 9 with the connecting member 79 extended. FIG. 15 is a side view of the massage unit 9 with the connecting member 79 contracted. 16A and 16B are schematic views of the connecting member 79, where FIG. 16A shows an expanded state and FIG. 16B shows a contracted state. FIG. 17 is a schematic side view showing a usage state of the massage machine 1.

  The configuration of the connecting member 79 will be described in detail. As shown in FIGS. 10 to 16, the connecting member 79 is rotatable with respect to the eccentric cam 78 via a bearing 82 fitted on the outer periphery of the eccentric cam 78. The attached first connecting portion 79a and its lower end portion are pivotally supported by the upper end portion of the first connecting portion 79a so as to be swingable in the left-right direction via a rotation shaft 79c whose axial direction is the front-rear direction. The second connecting portion 79b is attached to the rear end portion of the support arm 62a via a universal joint 79d made of a ball joint or the like. The left and right eccentric cams 78 are 180 degrees out of phase with respect to the center of rotation (axial center of the hitting shaft 76). Therefore, when the hitting shaft 76 is rotated, the left and right support arms 62a swing back and forth alternately. Will be performed.

  As shown in FIGS. 14 and 15, the connecting member 79 is connected to the support arm 62 a at the upper end portion behind the squeezing shaft 73 and is configured to be extendable along the longitudinal direction (vertical direction). . More specifically, as shown in FIG. 16, the second connecting portion 79b includes a cylindrical portion 91 having a cavity 91c therein, and an operating portion 92 that reciprocates in the vertical direction within the cavity 91c of the cylindrical portion 91; It consists of Further, a biasing means made of a compression spring or the like is provided in the cavity 91c between the cylindrical portion 91 and the operating portion 92 so that the end portion comes into contact with the bottom portion 91a of the cylindrical portion 91 and the lower end portion of the operating portion 92. 93 is provided. The biasing means 93 pushes up the operating portion 92 and biases the connecting member 79 in the extending direction. Accordingly, the upper side of the support arm 62a swings forward around the stagnation shaft 73.

  The cylindrical portion 91 is configured in a substantially cylindrical shape by a bottom portion 91a and a peripheral wall 92b erected upward from the outer periphery of the bottom portion 91a, and the upper portion is open. The operating portion 92 is formed in a substantially cylindrical shape by a collar portion 92a formed at the lower end portion and a rod portion 92b standing above the collar portion 92a, and a universal joint 79d is provided at the upper end portion. ing. And this operation | movement part 92 is inserted in the cylindrical part 91 from upper direction so that a slide is possible to an up-down direction. Further, the cylindrical portion 91 is provided with a stopper 94 that restricts the upward movement of the operating portion 92 by a predetermined amount or more. The stopper 94 protrudes into the cylindrical portion 91 and restricts the movement of the operating portion 92 by coming into contact with the flange portion 92a of the operating portion 92 from above.

  Further, the connecting member 79 is provided with a resistance applying means 95 that applies resistance to the expansion or contraction operation of the connecting member 79. The resistance applying means 95 is made of an elastic O-ring that is externally fitted to the operating portion 92, and abuts against the peripheral wall 91 b of the cylindrical portion 91 to give a frictional resistance to the motion of the operating portion 92. In the present embodiment, a plurality (two) of resistance applying means 95 are provided in the vertical direction.

  Hereinafter, the operation of the support arm 62a when the massage unit 9 is raised and lowered along the height direction will be described with reference to FIG. 17 by exemplifying a process in which the massage unit 9 rises from the buttocks to the shoulder. When the massage unit 9 is located at the buttocks, the lower treatment element 62b is pushed by the buttocks projecting rearward, and the support arm 62a swings forward at the upper side. When the massage unit 9 rises from the buttocks to the lumbar region, the lumbar region is recessed forward, so that the pressing force to the lower treatment element 62b is released, but the urging force of the urging means 93 causes the support arm 62a to move upward. The state of swinging forward is maintained. When the massage unit 9 rises from the waist to the back, the upper treatment element 62 b is pushed by the back protruding backward, and the support arm 62 a swings backward against the urging force of the urging means 93. When the massage unit 9 rises from the back to the shoulder, the pressing force to the upper treatment element 62b is released, and the support arm 62a swings forward by the urging force of the urging means 93. In addition, when raising / lowering the massage unit 9, if the air cell 63 for advancing / retreating is expanded and the massage unit 9 is made into the protrusion state, the upper and lower treatment elements 62b can be closely_contact | adhered by the treatment part.

  As described above, the connecting member 79 can be expanded and contracted and urged in the extending direction, so that the support arm 62a can be allowed to swing around the rubbing shaft 73 with a simple configuration, and the upper and lower treatment elements 62b can be treated. It can be made to contact appropriately according to the undulation of the part. In addition, since the support arm 62a is biased so that the upper side swings forward, the treatment element 62b can be positioned on the upper portion of the shoulder, which is suitable for massaging the shoulder. Further, since the second connecting portion 79b is configured by the cylindrical portion 91 and the operation portion 92 that reciprocates inside the cylindrical portion 91, the connecting member 79 can stably expand and contract. Further, by providing the resistance applying means 95 for applying resistance to the expansion or contraction operation of the connecting member 79, when the massage unit 9 moves along the treated portion, the support arm is changed by the change in the undulation of the treated portion. It is possible to prevent the 62a from swinging rapidly, and the treatment element 62b does not make a discomfort due to intense contact with the treated portion.

  As shown in FIGS. 12 and 13, an advancing / retreating air cell 63 is provided between the base frame 60 and the moving frame 61 to move the moving frame 61 forward and backward with respect to the base frame 60. That is, the advancing / retreating air cell 63 has a rear surface abutting and fixed to the rear wall 60 d of the base frame 60, and a front surface thereof abutting the rear wall 61 d of the moving frame 61. The advancing / retreating air cell 63 is configured to expand and contract by air supply / exhaust from the air supply / exhaust device 14 (see FIG. 7) described above, and the drive of the air supply / exhaust device 14 is controlled by the control unit 13. .

  The lower part of the moving frame 61 is supported on the base frame 60 by the above-described lifting drive shaft 64. An elevating drive shaft 64 is inserted into the moving frame 61 so as to be relatively rotatable. Due to the expansion and contraction of the advancing / retreating air cell 63, the moving frame 61 is located above the base frame 60 with the elevating drive shaft 64 as a swing fulcrum. The side can be moved back and forth (oscillated) with respect to the lower side. The advancing / retreating air cell 63 can be operated by a preset program in accordance with an instruction from the control unit 13 to displace the advancing / retreating position of the moving frame 61, and the user can use the remote controller 100 connected to the control unit 13. It is also possible to move the moving frame 61 to an advancing / retreating position intended by the user by operating it.

  In this embodiment, the advancing / retreating air cell 63 shown in FIG. 12 is completely contracted and the moving frame 61 is most retracted, and the advancing / retreating air cell 63 shown in FIG. The moving frame 61 can be positioned at the two protruding positions, and the moving frame 61 is positioned at the advancing / retreating position (retracting position or protruding position) intended by the user by operating the remote controller 100. And can be changed to the desired massage strength. Further, by providing a holding valve or the like in the air supply / exhaust device 14, the moving frame 61 may be positioned at an arbitrary forward / backward position between the retracted position and the protruding position. In this case, a pressure sensor for detecting the internal pressure of the advance / retreat air cell 63 or a timer for measuring the air supply / exhaust time for the advance / retreat air cell 63 may be provided.

[Configuration of various sensors]
As shown in FIG. 11, this massage unit 9 includes an elevation sensor 83 that detects the elevation speed and elevation position of the massage unit 9, a speed sensor 84 that detects the speed of the kneading operation and / or the tapping operation, and a pair of support arms A width sensor 85 that detects the interval between 62a and 62a and an advance / retreat sensor 86 that detects the advance / retreat position of the moving frame 61 are provided. And in the upper part (upper wall 61b) of the moving frame 61, the drive circuit (not shown) which drives each motor M1, M2, the detection part 83a-86a which comprises the various sensors 83-86, a drive circuit, A board 88 provided with a relay member 87 (see FIGS. 8 and 9) that electrically connects the detection units 83a to 86a to the control unit 13 is provided. Hereinafter, the configuration of the various sensors 83 to 86 will be described in detail.

  As shown in FIGS. 10 and 11, the elevating motor M1 is attached to the moving frame 61 via a bracket 61e so that the motor output shafts M1a and M1b are directed in the vertical direction. The elevating motor M1 includes a first output shaft M1a that extends downward and is connected to the elevating drive shaft 64 via a speed reducer 90, and extends upward and includes a magnet or the like at the upper end. And a second output shaft M1b to which the detected portion 83b is attached. On the lower surface of the substrate 88, a detection unit 83a made of a Hall IC or the like that detects the passage of the detected unit 83b is provided through a window (not shown) provided on the upper wall 61b. That is, the detection unit 83a and the detected unit 83b constitute a non-contact type lift sensor 83 that detects the lift speed and the lift position of the massage unit 9 by detecting the rotation speed and the rotation speed of the lift motor M1. ing.

  As shown in FIGS. 10 and 11, the massage motor M2 is also attached to the moving frame 61 via the bracket 61e so that the output shafts M2a and M2b of the motor are directed in the vertical direction, similarly to the lifting motor M1. . The massage motor M2 extends downward and is connected to the hitting shaft 76 via the speed reducer 77, and the massage motor M2 extends upward and the squeezing shaft via the speed reducer 75. 73 and a second output shaft M2b to which a detected portion 84b made of a magnet or the like is attached at the upper end. On the lower surface of the substrate 88, a detection portion 84a made of a Hall IC or the like that detects the passage of the detected portion 84b is provided through a window portion (not shown) provided on the upper wall 61b. That is, the detection unit 84a and the detected unit 84b constitute a non-contact type speed sensor 84 that detects the rotation speed of the massage motor M2 and detects the speed of the kneading operation and / or the speed of the tapping operation. Yes.

  As shown in FIGS. 10 and 11, a detected portion 85 b made of a magnet or the like is attached to the outer periphery of the stagnation shaft 73 so as to be rotatable integrally with the stagnation shaft 73, and the upper wall 61 b is attached to the lower surface of the substrate 88. A detecting portion 85a made of a Hall IC or the like that detects the passage of the detected portion 85b is provided through a window portion (not shown). That is, the detection unit 85a and the detected unit 85b constitute a non-contact type width sensor 85 that detects the rotational position of the kneading shaft 73 and detects the distance between the pair of support arms 62a and 62a.

  As shown in FIGS. 10 and 11, a detected portion 86 b made of a magnet or the like is fixedly provided on the lower surface of the upper wall 60 b of the base frame 60 at a location facing the upper wall 61 b of the moving frame 61. . On the upper surface of the substrate 88, a detection unit 86a made of a Hall IC or the like that detects the passage of the detection unit 86b is provided at a position corresponding to the detection unit 86b in the left-right direction. That is, a non-contact type advance / retreat sensor 86 that detects that the moving frame 61 has reached a predetermined advance / retreat (swing) position with respect to the base frame 60 is configured by the detection unit 86a and the detected portion 86b. . Although details will be described later, a detecting means for detecting a specific part (specifically, a shoulder position) in the height direction of the user based on the detection results of both the sensors 83 and 86 by the above-described lift sensor 83 and advance / retreat sensor 86. It is configured.

  As described above, the detection units 83 a to 86 a of the elevation sensor 83, the speed sensor 84, the width sensor 85, and the advance / retreat sensor 86 are collectively arranged on the single substrate 88 provided on the upper part of the moving frame 61. This contributes to cost reduction by reducing the number of substrates and simplification of handling of the relay member 87 connected to the control unit 13.

  As shown in FIGS. 12 and 13, the massage unit 9 is provided between the base frame 60 and the moving frame 61, and includes an urging member 89 made of a compression spring or the like that constantly urges the moving frame 61 toward the user. Have. The urging member 89 has a rear end portion fixed to the rear wall 60 d of the base frame 60 and a front end portion in contact with the rear wall 61 d of the moving frame 61. When the user's load is acting on the massage means 62 provided on the moving frame 61, the moving frame 61 is positioned in the retracted position (see FIG. 12) against the forward biasing force by the biasing member 89. When the user's load on the massage means 62 is released, the moving frame 61 is moved to the protruding position (see FIG. 13) by the urging force forward by the urging member 89. The biasing force is set. The urging member 89 is not limited to the above-described configuration. For example, the moving frame 61 has a front wall that connects the front portions of both side walls 61a, and is provided on the lifting drive shaft 64 so that the front wall extends forward. It can also be a torsion spring that urges toward.

Hereinafter, a method for detecting a specific part (shoulder position) of the user by the massage unit 9 will be described.
The initial position of the lift position of the massage unit 9 is located at the front end portion of the seat portion 3. And a user operates the remote controller 100 and selects the automatic course in which each massage part 9-12 operate | moves with the preset content memorize | stored in the control part 13. FIG. When the automatic course is selected, the control unit 13 controls the massage unit 9 to rise from the front end portion of the seat portion 3 toward the upper end portion of the backrest portion 4. In the lift position where the user's body part is present, a load is applied to the massage means 62 from the user, so that the moving frame 61 moves back to the forward position against the forward biasing force of the biasing member 89 ( (See FIG. 12). When the massage unit 9 reaches the shoulder position of the user, the load on the massage means 62 from the user is released, and the moving frame 61 is protruded by the forward biasing force of the biasing member 89 (see FIG. 13). ).

  Then, the shoulder position of the user is determined by the lift sensor 83 detecting the lift position of the massage unit 9 when the advance / retreat sensor 86 detects the protruding position of the moving frame 61. The detected shoulder position is stored in the control unit 13, and an automatic course is started. The shoulder position may be detected in the process of lowering the massage unit 9 from the upper end of the backrest 4. In this case, the elevation position of the massage unit 9 when the advance / retreat sensor 86 detects that the moving frame 61 is retracted from the protruding position (see FIG. 13) is detected by the elevation sensor 83 to determine the shoulder position. That's fine.

[Configuration of locking mechanism]
As shown in FIGS. 3 to 5, the locking mechanism unit 8 mainly includes a link member 40 that connects the chair body 2 to the base 7 so as to be able to swing back and forth, and a locking drive unit 31 that swings the link member 40. It is configured. The link member 40 has a first link part 42 and a second link part 43 that extend upward from the base with a predetermined interval in the front and rear, and the lower part is pivotally supported by the base 7 and the upper part is The chair body 2 is pivotally supported. More specifically, the lower portion of the first link portion 42 is pivotally supported by the first shaft 7b, and the upper portion thereof is pivotally supported by the seat portion 3 (chair body 2) via the bracket 44 and the pivot A1. The upper part is configured to be swingable back and forth. The lower part of the second link part 43 is pivotally supported by the second shaft 7c behind the first link part 42, and the upper part thereof is attached to the seat part 3 (the chair body 2) via the bracket 44 and the pivot A2. It is pivotally supported and its upper part is configured to be swingable back and forth. The first link portion 42 and the second link portion 43 are paired on the left and right, respectively, and the pair of first link portions 42 and 42 are connected by a first connecting portion 42a extending in the left-right direction. The second link parts 43, 43 are connected by a second connecting part 43a extending in the left-right direction.

  Thus, since the chair body 2 is supported by the base 7 via the first link part 42 and the second link part 43 provided at a predetermined interval in the front-rear direction, the load acting on the locking mechanism part 8 (Load from the user) is distributed back and forth, and the chair body 2 can be rocked back and forth stably. Further, since the lower part of the link member 40 is connected to the base 7 and the upper part is connected to the chair body 2, the connecting part of the link member 40 in the base 7 (that is, the first shaft 7b and the second shaft 7c) is placed on the floor. There is no need to be positioned at a high position from the surface, and the overall height of the massage machine 1 can be suppressed. Furthermore, as shown in FIGS. 2 to 4, the chair body 2 has a housing portion 23, a bracket 44 for attaching the link member 40 to the chair body 2, and a part of the link member 40 constituting the locking mechanism portion 8 ( Since the upper portion is not exposed to the outside of the chair body 2 by being positioned in the accommodating portion 23, the beauty of the massage machine 1 can be improved.

  As shown in FIGS. 3 to 5, the rocking drive unit 31 is configured by a direct-acting actuator having a motor 32 and a cylinder 33 that expands and contracts by driving the motor 32. The cylinder 33 of the locking drive portion 31 is pivotally supported by a second connecting portion 43a having a base portion 33a as a link member 40 via a bracket 43b, and a tip portion 33b is pivotally supported by a base 7 by a third shaft 7d (pivot). Has been. According to this configuration, when the locking drive unit 31 is driven to shorten the cylinder 33, the link member 40 swings forward, and the chair body 2 in the standing state (see FIG. 3) is reclining (see FIG. 4). When the locking drive unit 31 is driven and the cylinder 33 is extended, the link member 40 swings backward, and the chair body 2 in the reclining state (see FIG. 4) is erected. It is possible to shift to a state (see FIG. 3). Then, by stopping the motor 32, the chair body 2 is positioned at an arbitrary position between the standing state and the reclining state.

  As shown in FIG. 6, the rocking drive unit 31 includes a swing position sensor 34 that detects the swing position of the chair body 2 with respect to the base 7. The swing position sensor 34 is a detection unit 34b made of a magnet or the like attached to the output shaft 32a of the motor 32, and a detection unit made of a Hall IC or the like provided in the motor body 32b for detecting the passage of the detection unit 34b. 34a, and the detection unit 34a detects the rotational speed of the output shaft 32a (motor 32) so that an arbitrary swinging position between the standing state and the reclining state of the chair body 2 can be detected. It is configured. Further, two detection units 34a are provided in the vicinity of the circumferential direction of the output shaft 32a, and an output is obtained by determining which detection unit 34a first detects the passage of the detected portion 34b. The rotation direction of the shaft 32a (motor 32) can also be detected. As shown in FIG. 7, the swing position sensor 34 is electrically connected to the control unit 13, and the control unit 13 controls the driving of the motor 32 according to the detection result of the swing position sensor 34. It is configured as follows.

  As shown in FIG. 7, the above-described locking drive unit 31 (motor 32), massage unit 9, and air cells 10 to 12 operate according to a program set in advance according to instructions from the control unit 13, The user can also operate based on a signal input to the control unit 13 by operating the connected remote controller 100 by the user.

[Configuration of foot link member]
As shown in FIGS. 3 to 5, the foot link member 50 includes a first foot link portion 51 pivotally supported on the chair body 2 via a bracket 44, a first link portion 42 and a bracket 42 b and the bracket 51 b. The second foot link part 52 pivotally supported by the first foot link part 51 and the third foot link part 53 pivotally supported by the second foot link part 52 and the bracket 27 are provided. The upper part of the first foot link part 51 is attached to the bracket 44 (that is, the seat part 3) via the pivot A3 between the pivots A1 and A2, and the lower part is attached to the rear part of the second foot link part 52 with the pivot A4. Is attached through. The front part of the second foot link part 52 is attached to the third foot link part 53 via the pivot A5, and is attached to the first link part 42 (bracket 42b) via the pivot A6 between the pivots A4 and A5. It has been. The upper part of the third foot link part 53 is attached to the bracket 27 (that is, the footrest 5) via the pivot A7, and the lower part is attached to the second foot link part 52 via the pivot A5. When the locking drive unit 31 is driven, the footrest member 50 connected to the link member 40 is configured to swing the footrest 5 up and down in conjunction with the swinging of the chair body 2. In other words, the rocking drive unit (drive unit) 31 and the foot link member 50 constitute a moving mechanism unit that moves the footrest 5 relative to the seat 3.

  When the locking drive unit 31 is driven and the first link portion 42 is swung forward around the first shaft 7b from the standing state and brought closer to the reclining state, the first foot link portion 51 moves about the pivot A3. The second foot link 52 swings backward about the pivot A6 with respect to the first link 42, and the front of the second foot link 52 swings downward about the pivot A5. Move. Therefore, when the chair body 2 is swung forward to approach the reclining state, the footrest 5 rotates upward. More specifically, in the process in which the chair body 2 transitions from the standing state to the reclining state, the seat portion 3 tilts backward and the footrest 5 rises. At this time, since the leg is stretched while moving to a higher position, the blood flow of the leg can be promoted from the tip of the foot to the heart as in the so-called centripetal method, and the relaxation effect can be enhanced. it can.

  On the other hand, when the locking drive unit 31 is driven and the first link unit 42 is swung rearward around the first shaft 7b from the reclining state to approach the standing state, the first foot link unit 51 is pivoted on the pivot A3. The second foot link portion 52 swings downward about the pivot A6 with respect to the first link portion 42, and the third foot link portion 53 moves upward about the pivot A5. Swing to. Therefore, when the chair body 2 is swung rearward and brought closer to the standing state, the footrest 5 is rotated downward. More specifically, in the process in which the chair body 2 shifts from the reclining state to the standing state, the seat portion 3 tilts forward and the footrest 5 descends. When the chair body 2 is in the standing state, the footrest 5 is lowered, so that the user can easily get on and off the chair body 2.

[Configuration of Connecting Member According to Other Embodiment]
Hereinafter, the structure of the connection member 110 which concerns on other embodiment (the 1) is demonstrated. 18A and 18B are cross-sectional views of the connecting member 110 according to another embodiment (part 1), in which FIG. 18A shows a state in which the connecting member 110 is extended, and FIG. 18B shows a state in which the connecting member 110 is contracted. . In addition, about the structure same as the massage unit 9 or the connection member 79 mentioned above, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

  As with the connecting member 79 described above, the connecting member 110 is connected to the support arm 62a at the rear of the squeezing shaft 73 and is configured to be extendable and contractable along its longitudinal direction (vertical direction). More specifically, as shown in FIG. 18, the second connecting portion 79b includes a cylindrical portion 111 having a cavity 111c therein and an operating portion 112 that reciprocates in the vertical direction inside the cylindrical portion 111. Has been.

  The cylindrical part 111 is configured in a substantially cylindrical shape by a bottom part 111a and a peripheral wall 111b erected upward from the outer periphery of the bottom part 111a, and the upper part is open. Furthermore, a communication hole 111d for communicating the cavity 111c with the atmosphere is provided in the middle in the vertical direction of the peripheral wall 111b. The operation part 112 is formed in a rod shape extending in the vertical direction as a whole, and a bottom part 112a having a slightly smaller diameter than the inner diameter of the cylindrical part 111 and a first rod having a smaller diameter formed above the bottom part 112a. Part 112b and a second rod part 112c formed above the first rod part 112b and provided with a universal joint 79d at the upper end part. And this operation | movement part 112 is inserted in the cylindrical part 111 from upper direction so that a slide is possible to an up-down direction.

  A gap S is formed between the cylindrical portion 111 and the first rod portion 112b, and this gap S functions as a passage for air to enter and exit between the cylindrical portion 111 and the atmosphere. That is, when the operating member 112 descends when the upper treatment element 62a receives a load from the treated portion from the extended state shown in FIG. 18A, the connecting member 110 is cylindrical as shown in FIG. 18B. The air in the part 111 flows out to the atmosphere along the arrow a. When the connecting member 110 is in the contracted state shown in FIG. 18 (b), when the lower treatment element 62a receives a load from the treated portion and the operating portion 112 is lifted, the cylindrical portion as shown in FIG. 18 (a). Air flows into 111 along arrow b. The vertical dimension of the gap S communicates with the communication hole 111d in a range from a state in which the connecting member 110 is most contracted (a state in which the operation unit 112 is most lowered) to a state in which the connection member 110 is most expanded (a state in which the operation unit 112 is most up) It is set to do. Further, the cylindrical portion 111 is provided with a stopper 94 that restricts the upward movement of the operating portion 112 by a predetermined amount or more. The stopper 94 protrudes into the cylindrical portion 111 and restricts the movement of the operating portion 112 by coming into contact with the bottom wall 112a of the operating portion 112 from above.

  Further, the connecting member 110 is provided with a resistance applying means 95 that applies resistance to the expansion or contraction operation of the connecting member 110. The resistance applying means 95 is composed of an elastic O-ring that is externally fitted to the second rod portion 112c, which is the operating portion 112, and abuts against the peripheral wall 111b of the cylindrical portion 111 to provide frictional resistance to the motion of the operating portion 112. The air flow is prevented from entering and exiting from other than the communication hole 111d. In the present embodiment, a plurality (two) of resistance applying means 95 are provided in the vertical direction. Thus, the connecting member 110 of the present embodiment employs a gas damper structure that imparts resistance to the contraction operation by air resistance.

  In this way, by making the connecting member 110 extendable and retractable, it is possible to allow the support arm 62a to swing around the squeezing shaft 73 with a simple configuration, and align the upper and lower treatment elements 62b with the undulations of the treatment portion. Can be made to contact properly. In addition, since the second connecting portion 79b is configured by the cylindrical portion 111 and the operation portion 112 that reciprocates inside the cylindrical portion 111, the connecting member 110 can stably expand and contract. Further, by providing the resistance applying means 95 for applying resistance to the expansion or contraction operation of the connecting member 110, when the massage unit 9 moves along the treatment portion, the support arm is changed by the change in the undulation of the treatment portion. It is possible to prevent the 62a from swinging rapidly, and the treatment element 62b does not make a discomfort due to intense contact with the treated portion.

  In addition, by adopting a gas damper structure for the connecting member 110, for a slow operation such as a lifting / lowering operation or a squeezing operation of the massage unit 9, the reaction force from the treatment portion causes the inside of the cylindrical portion 111. Air can escape from the communication hole 111d, and the support arm 62a can swing according to the undulations of the treated portion. On the other hand, for a quick operation such as a hitting operation, the hitting operation can be prevented from being absorbed by the connecting member 110 without the air in the cylindrical portion 111 being removed from the communication hole 111d.

  Hereinafter, the structure of the connection member 120 which concerns on other embodiment (the 2) is demonstrated. In addition, about the structure same as the massage unit 9 and the connection members 79 and 110 which were mentioned above, the same code | symbol is attached | subjected and the description is abbreviate | omitted. FIG. 19 is a cross-sectional view of a connecting member 120 according to another embodiment (No. 2), in which (a) shows a state in which the connecting member 120 is extended, and (b) shows a state in which the connecting member 120 is contracted. .

  The connecting member 120 of the present embodiment is provided with a biasing means 93 that pushes up the operating portion 112 and biases the connecting member 120 in the extending direction with respect to the connecting member 110 according to the other embodiment (part 1) described above. It has been added. This urging means 93 is provided in the cavity 111c and between the cylindrical portion 111 and the operating portion 112, and is compressed so that the end portion abuts on the bottom portion 111a of the cylindrical portion 111 and the bottom portion 112a of the operating portion 112. It consists of a spring. This urging means 93 pushes up the operating part 112 and urges the connecting member 120 in the extending direction. Accordingly, the upper side of the support arm 62a swings forward around the stagnation shaft 73. In the connecting member 120 configured as described above, the effects of both the connecting members 79 and 110 described above can be obtained.

Moreover, the massage machine of this invention is not restricted to the form to show in figure, The thing of another form may be sufficient within the scope of this invention.
For example, the backrest part 4 may be separated from the seat part 3 and reclining with respect to the seat part 3. In this case, it is preferable to provide the massage unit 9 on the backrest part 4 so that it can be raised and lowered. Alternatively, the backrest 4, the seat 3, and the footrest 5 may be integrally configured. In this case, the massage unit 9 can be moved from the backrest 4 to the footrest 5 via the seat 3. It is preferable to provide the main body 2.

  The present invention can be applied to a massage unit that can change the degree of protrusion of the upper and lower treatment elements with a simple configuration.

62a Support arm 62b Treatment element 73 Gripping shaft 76 Striking shaft 79 Connecting member 91 Cylindrical portion 91c Cavity 92 Operating portion 93 Energizing means 95 Resistance applying means 110 Connecting member 111 Cylindrical portion 111c Cavity 111d Communication hole 112 Operating portion 120 Connecting member

Claims (7)

With the therapist,
A pair of left and right support arms for vertically supporting the treatment element;
A squeezing shaft that supports the support arm so as to be swingable in the front-rear direction and moves the treatment element in the left-right direction to perform a squeeze operation;
A hitting shaft for moving the treatment element in the front-rear direction to perform a hitting action;
A connecting member for connecting the hitting shaft and the support arm, and transmitting the drive by the hitting shaft to the support arm;
The massage unit according to claim 1, wherein the connecting member is configured to be extendable and retractable so as to allow the support arm to swing in the front-rear direction.   The massage unit according to claim 1, further comprising an urging unit that urges the connecting member in an extending direction or a contracting direction.   The massage unit according to claim 1, further comprising a resistance applying unit that applies resistance to the extending or contracting operation of the connecting member.   The massage unit according to any one of claims 1 to 3, wherein the connecting member includes a cylindrical portion having a cavity therein, and an operation portion that reciprocates inside the cylindrical portion. The connecting member is connected to the support arm behind the squeezing shaft,
The massage unit according to claim 4, wherein the urging unit is provided between the cylindrical part and the operating part and urges the connecting member in an extending direction.   The massage unit according to claim 4 or 5, wherein the connecting member has a gas damper structure in which a communication hole for communicating the cavity with the atmosphere is provided in the cylindrical portion. The massage unit according to any one of claims 1 to 6, wherein the massage unit can be moved up and down along the height direction of the user.

Images