JP4609341B2 - Massage machine - Google Patents

Description

  The present invention relates to a silent technology in a massage machine.

  Conventionally, an air massage machine is known from Patent Document 1 in which an inflatable muffler is provided in order to silence pump sounds and air sounds. As shown in FIG. 16, this conventional example is provided in the middle of an air pump 1, an air bag 2 to which air is supplied from the air pump 1, and an air flow path 6 between the air pump 1 and the air bag 2. 2 and a control circuit 4 for controlling the air pump 1 and the valve 3, and a control circuit 4 for controlling the air pump 1 and the valve 3. In the massage machine that performs massage by supplying and exhausting air, an inflatable muffler 70 is provided in the air flow path 6 between the valve 3 and the air bag 2. In the figure, reference numeral 80 denotes an exhaust part provided in the valve 3.

  Moreover, the thing provided with the muffler tank is also known by patent document 2. FIG.

  However, in the case where the expansion muffler 70 and the silencing tank are provided, the vibration sound and pulsation sound of the air pump 1 have a certain effect, but they are generated instantaneously during the switching operation of the valve 3 as described below. Suppressing abnormal noise was not enough.

  That is, when the valve 3 is switched so that the air pump 1 and the air bag 2 communicate with each other in order to turn on the air pump 1 and supply air to the air bag, and to exhaust air from the supplied air bag 2. When the valve 3 is switched to the exhaust side, an abnormal noise “push” is generated. The abnormal noise generated when the valve 3 is switched is an abrupt air change caused by an instantaneous pressure change during the switching operation of the valve 3. Therefore, providing the inflatable muffler 70 and the muffler tank as in the prior art has little effect of suppressing the abnormal noise “push”.

In addition, the abnormal noise “push” that occurs instantaneously during the switching operation of the valve 3 has a problem that the sound quality is quite harsh and uncomfortable for the user.
JP 2004-195114 A JP 2002-58718 A

  The present invention has been invented in view of the above-described conventional problems, and provides a massage machine capable of suppressing abnormal noise generated with instantaneous pressure change during valve switching operation with a simple configuration. Is an issue.

In order to solve the above problems, a massage machine according to the present invention is provided in the middle of an air pump 1, an air bag 2 to which air is supplied from the air pump 1, and an air flow path 6 between the air pump 1 and the air bag 2. A control circuit 4 for controlling the air pump 1 and the valve 3, and a control circuit 4 for controlling the air pump 1 and the valve 3. In the massaging machine in which massage is performed by driving the treatment element 5 directly with the air bag 2 or by driving the air bag 2 by supplying and exhausting air to and from the valve 3, the valve 3 drives the air pump 1 to air into the air bag 2. The three-way solenoid valve 3A can be switched between a case where the air pump 1 and the air bag 2 are communicated to supply air and a case where the air bag 2 and the exhaust part 80 are communicated to exhaust air from the air bag 2. The air bag 2 side of the 3-way solenoid valve 3A The joint portion 8 provided at the outlet, is characterized in that formed by interior pressure loss for the object 7 of porous having air permeability as a air pressure loss in the joint portion 8.

With such a configuration, when the valve 3 is switched so that the air pump 1 and the air bag 2 communicate with each other in order to turn on the air pump 1 and supply air to the air bag 2, and the supplied air When the valve 3 is switched to the exhaust side in order to exhaust air from the bag 2, an instantaneous pressure change during the switching operation of the valve 3 is provided in the air flow path 6 between the air bag 2 and the valve 3. It can be suppressed by the porous pressure loss object 7, thereby suppressing the abnormal noise “push” caused by an instantaneous pressure change during the switching operation of the valve 3. Moreover, when the air pump 1 is turned on and air is supplied to the air bag 2, the air passes through the porous pressure loss object 7 having air permeability from the valve 3 (three-way electromagnetic valve 3A) toward the air bag 2 side. When the air is discharged from the air bag 2, the air passes through the porous pressure loss object 7 having air permeability and flows toward the valve 3. For this reason, the air pump 1 and the air bag 2 communicate with each other in order to turn on the air pump 1 and supply air to the air bag 2 by the porous pressure loss object 7 having air permeability that becomes air pressure loss. When the valve 3 is switched and when the valve 3 is switched to the exhaust side in order to exhaust air from the supplied air bag 2, the instantaneous pressure change during the switching operation of the valve 3 has air permeability. It can be suppressed by the porous pressure loss object 7. Further, since the pressure loss object 7 is provided at the joint portion 8 directly connected to the valve 3, the structure is simplified.

Further, it is preferable that the three-way solenoid valve 3 </ b> A includes two-way three-way solenoid valves 3 a and 3 b each having a two-joint portion 8, and the pressure loss object 7 is housed in each of the two-joint portions 8 .

  According to the present invention, it is possible to suppress an abnormal noise generated with an instantaneous pressure change at the time of a valve switching operation with a simple configuration, and it is possible to perform a comfortable massage without causing discomfort to the user.

  Hereinafter, the present invention will be described based on embodiments shown in the accompanying drawings.

In the embodiment shown in the accompanying drawings, a massage machine using expansion / contraction of the air bag 2 will be described as an example of one of the drive sources of the treatment element 5 for massaging the human body.
What is shown in FIG. 3 is a mechanism unit in the massage machine. For example, as shown in FIG. 8, this mechanism unit is arranged in a backrest 90 of a chair 9 and is self-propelled up and down in the backrest 90. Between the left and right side plates 91, 91 constituting the frame, a vertical drive shaft is provided. 51 and a strong / weak driving shaft 61 are installed, and the movable unit shown in FIG.

  As shown in FIG. 5, the vertical drive shaft 51 is rotationally driven when the output of the vertical drive motor 50 fixed to one side plate 91 is transmitted through a gear group in the gear box 52. The pinions 53 and 54 are attached to both ends thereof. The roller 54 rolls in the rail disposed on the backrest 90 together with the roller 55 shown in FIG. 3, and the pinion 53 meshes with a rack 85 attached to the rail (see FIG. 9).

  As shown in FIG. 6, the strength driving shaft 61 is rotationally driven by the output of the strength driving motor 60 fixed to the other side plate 91 being transmitted through the gear group in the gear box 62. The gears 63, 63 for rotating the movable unit are attached to both ends thereof.

  The movable unit has a width drive shaft 31, two slide guide shafts 32, 32 and a striking drive shaft 41 installed between a pair of left and right gear plates 30, 30, and a pair of left and right treatment element arm blocks 11, 11 (see FIG. 4 shows only one treatment element arm block 11). Both ends of the width drive shaft 31 that can freely rotate around the shaft with respect to both the gear plates 30 and 30 are supported by the pair of side plates 91 and 91 so as to be disposed between the side plates 91 and 91. The tooth portions 300 and 300 on the outer peripheral surfaces of the gear plates 30 and 30 are meshed with the gears 63 and 63 described above. One end of the width driving shaft 31 is connected to a pulley 38 to which the output of the width driving motor 35 attached to one side plate 91 is transmitted via a pulley 36 and a belt 37. The drive shaft 31 rotates around the axis by the output of the width driving motor 35.

  A knocking drive motor 40 is mounted on one gear plate 30 of the movable unit. The output of the motor 40 is transmitted to the hitting drive shaft 41 by a pulley and a belt 43. The tapping drive shaft 41 is formed as a crankshaft having different eccentric directions on the left and right.

  As shown in FIG. 7, the treatment element arm block 11 includes an arm base plate 10 as a treatment element support member, a first arm 13, a second arm 14, and a roller-type treatment element 5 (first treatment element 5a, second treatment element 5b. ) And the like, and the arm base plate 10 includes a feed nut 33 screwed into the threaded portion of the width drive shaft 31, and sliders 34, 34 slidably fitted to the slide guide shaft 32. The position of the width drive shaft 31 and the slide guide shaft 32 in the axial direction is changed by the rotation of the drive shaft 31, and the screw portion formed on the width drive shaft 31 is formed with a reverse screw on one side. Therefore, the arm base plates 10 and 10 in the pair of left and right treatment element arm blocks 11 are moved toward and away from each other by the rotation of the width drive shaft 31. That.

  The first arm 13 having the first treatment element 5a and the second arm 14 having the second treatment element 5b are directly attached to the arm base plate 10 by the same shaft 100. Further, the link 45 connecting one end of the drive shaft 41 is connected to the first arm 13 at the other end, and the shaft at the other end is engaged with a long hole 48 provided in the first arm 13. The swinging is not disturbed.

  As shown in FIGS. 2 (a) and 2 (b), the first treatment element 5a and the second treatment element 5b can be moved closer to or away from each other by the operation of the air bag 2 (2a, 2b). . That is, in the embodiment, the air bag 2a is interposed between the receiving plate 20a of the first arm 13 and the receiving plate 20b of the second arm 14, and the first treatment element 5a and the second treatment element 5b. Can be driven in the direction of approaching. Further, an air bag 2b is interposed between the receiving plate 20b of the second arm 14 and the support portion 20c of the first arm 13, so that the first treatment element 5a and the second treatment element 5b are separated from each other. It has come to force. Further, the float means 23 is interposed between the link 45 and the arm 14, and the float means 23 is spring-biased so that the first treatment element 5a and the second treatment element 5b come into contact with the body. As this float means 23, a spring material, an air bag, etc. are employable. In the figure, reference numeral 95 denotes an air pump 1 or a valve 3 for operating the air bag 2 (2a, 2b) (in the case where the float means 23 is an air bag, the air bag constituting the float means 23 is also operated). Is an air drive unit.

  As described above, the first treatment element 5a and the second treatment element 5b are provided in the pair of left and right treatment element arm blocks 11, 11, respectively, so that each treatment element arm block 11 is paired up and down. A pair of a child 5a and a second treatment element 5b is provided, and the first treatment element 5a provided on each of the left and right treatment element arm blocks 11 is paired on the left and right upper sides, and the left and right lower sides are left and right. The second treatment element 5b is a pair.

  FIG. 1 shows an air piping configuration diagram. The air pump 1 and the air bag 2 are connected in communication by an air flow path 6. Here, in the embodiment of FIG. 1, a total of four airbags 2, that is, a pair of left and right airbags 2 a and 2 a and a pair of left and right airbags 2 b and 2 b are provided as the airbag 2, and Two-way three-way solenoid valve having a total of two valves 3 (3a, 3b) of a first valve 3a and a second valve 3b for switching the air supply / exhaust to the pair of air bags 2a, 2a 3A is provided. When the air pump 1 side is the upstream side and the air bag 2 side is the downstream side, the air flow path 6 is in the middle (upstream side of the dual three-way solenoid valve 3A) and the first air flow path 6a and the second air flow. The first air flow path 6a is provided with a first valve 3a in the middle, and a pair of left and right air bags 2a, 2a are connected to the downstream end, and the second air The flow path 6b is provided with a second valve 3b in the middle, and a pair of left and right air bags 2b, 2b are connected to the downstream end.

  The first valve 3 a and the second valve 3 b both have an exhaust part 80, and the air pump 1 and the air bag 2 communicate with each other to drive the air pump 1 and supply air to the air bag 2. And a three-way solenoid valve capable of switching between the case where the air bag 2 communicates with the exhaust portion 80 in order to exhaust air from the air bag 2.

  The first air flow path 6a between the first valve 3a and the pair of left and right air bags 2a is provided with a porous pressure loss object 7 having air permeability that causes air pressure loss. In the second air flow path 6b between the valve 3b and the pair of left and right air bags 2b, a porous pressure loss object 7 having air permeability that causes air pressure loss is provided. The porous pressure loss object 7 having air permeability that causes air pressure loss is formed of, for example, open-cell foamed synthetic resin such as urethane foam or felt.

  When the air pump 1 is turned on and air is supplied to the air bag 2, the air flows from the valve 3 toward the air bag 2 through the porous pressure loss object 7 having air permeability, and the air bag. When the air is exhausted from the air 2, the air passes through the porous pressure loss object 7 having air permeability and flows to the valve 3 side. For this reason, the air pump 1 and the air bag 2 communicate with each other in order to turn on the air pump 1 and supply air to the air bag 2 by the porous pressure loss object 7 having air permeability that becomes air pressure loss. When the valve 3 is switched and when the valve 3 is switched to the exhaust side in order to exhaust air from the supplied air bag 2, the instantaneous pressure change during the switching operation of the valve 3 has air permeability. It can be suppressed by the porous pressure loss object 7. Thus, since the pressure loss object 7 suppresses an instantaneous pressure change at the time of the switching operation of the valve 3, the porous pressure loss object 7 having air permeability is provided in the vicinity of the valve 3. preferable. In this case, when the pressure loss object 7 is provided in the joint portion 8 of the air flow path 6 directly connected to the valve 3 as in the embodiment shown in FIGS. 11 and 12, the valve 3, the pressure loss object 7, and the joint portion 8 are connected. Not only can the unit be compactly integrated, but the pressure loss object 7 can be provided in the vicinity of the valve 3 with a simple configuration. 11 to 13, a pressure loss object 7 is provided at a joint portion 8 of a two-way three-way electromagnetic valve 3A having a total of two valves 3 (3a, 3b) including a first valve 3a and a second valve 3b. For example, the valves 3a and 3b are constituted by a three-way electromagnetic valve having a switching valve body therein and a coil 81, a yoke 82, a terminal 83, etc., and the air bags 2a and 2b of the valves 3a and 3b. A joint portion 8 is provided at each of the outlets, and a pressure loss object 7 is housed in each joint portion 8 as shown in FIGS.

  As shown in FIG. 15, it is conceivable that the pressure loss object 7 is provided near the valve 3 on the exhaust part 80 side. In this case, the air bag 2 is turned on via the valve 3 with the air pump 1 turned on. It is not possible to suppress an instantaneous pressure change during the switching operation of the valve 3 when the air is supplied. Further, when it is provided between the air pump 1 and the valve 3, the instantaneous pressure during the switching operation of the valve 3 when the valve 3 is switched to the exhaust side in order to exhaust air from the supplied air bag 2. Change cannot be suppressed. Therefore, the pressure loss object 7 is provided in a portion of the air flow path 6 between the valve 3 and the air bag 2.

  The operation of the massage machine configured as described above will be described. First, when the vertical drive shaft 51 is driven by the vertical drive motor 50, the pinion 53 provided on the vertical drive shaft 51 rotates as shown in FIG. Then, by moving up and down along the rack 85, the movable unit self-propels up and down within the backrest of the chair and changes the positions of the first treatment element 5a and the second treatment element 5b up and down. When the strong and weak driving shaft 61 is driven by the strong and weak driving motor 60, the gear 63 provided in the strong and weak driving shaft 61 rotates the gear plate 30 around the axis of the width driving shaft 31, so that the arm base plate together with the gear plate 30 is provided. 10 rotates, and a state in which the amount of forward protrusion of the first treatment element 5a is small and a state in which the amount of forward protrusion of the first treatment element 5a is large can be obtained. That is, strength adjustment can be performed by changing the forward protrusion amount of the first treatment element 5a. When the width drive shaft 31 is rotated by the width drive motor 35, the pair of left and right treatment element arm blocks 11 and 11 approach and separate in the width direction (left and right direction) as described above, and the first treatment element 5a on the left and right sides. , 5a, the interval between the left and right second treatment elements 5b, 5b is changed.

  By the way, this massage machine realizes so-called massage massage by combining the operations of the three motors 50, 60, and 35. In addition, in order to enable drive control to perform such massage, in addition to the vertical position sensor S2, the width position sensor S1, etc., as shown in FIG. 10, the strength position, the rotational speed (rotational angle) of each motor, as shown in FIG. A sensor for detecting the above is provided to perform feedback control. Reference numeral 4 in FIG. 10 denotes a control circuit composed of a microcomputer.

  Further, the air pump 1 is driven and the first valve 3a is switched so that the air pump 1 and the air bag 2a communicate with each other (in this case, the exhaust valve 80 side of the first valve 3a is closed), and the second valve By switching the air bag 2b so that the air bag 2b communicates with the exhaust part 80 (in this case, the air pump 1 side of the second valve 3b is closed), the air is supplied to the air bag 2a. The bag 2a is expanded and contracted by extracting air from the air bag 2b and exhausting it from the exhaust part 80. The first treatment element 5a and the second treatment are caused by the expansion and contraction of the air bag 2b. The child 5b can be brought close to each other.

  Further, the air pump 1 is driven and the second valve 3b is switched so that the air pump 1 and the air bag 2b communicate with each other (in this case, the exhaust valve 80 side of the second valve 3b is closed), and the first valve 3b is closed. By controlling the valve 3a so that the air bag 2a communicates with the exhaust part 80 (in this case, the air pump 1 side of the first valve 3a is closed), the air is removed from the air bag 2a and contracts. At the same time, the air bag 2b is supplied with air to be expanded, and the first treatment element 5a and the second treatment element 5b can be separated by the expansion and contraction of the air bag 2a. As described above, the second arm 14 rotates with respect to the first arm 13 around the shaft 100, and the treatment element 5 and the second treatment element 5b move close to or away from each other to move the treatment element 5 and the first arm 13 from each other. It is possible to massage the shoulders between the two treatment elements 5b.

  Here, when the valve 3 (first and second valves 3a and 3b) is switched for expansion and contraction of the air bag 2 (2a and 2b) as described above, the valve 3 (first and second valves) is switched. 3a, 3b) An abnormal noise “push” is generated due to an abrupt air flow accompanying an instantaneous pressure change during the switching operation. In the present invention, as described above, the switching operation of the valve 3 is performed. An instantaneous pressure change is suppressed by a porous pressure loss object 7 having air permeability provided in an air flow path 6 between the air bag 2 and the valve 3. It is possible to suppress an abnormal noise “push” caused by an instantaneous pressure change during the switching operation.

  In particular, by providing the pressure loss object 7 in the vicinity of the valve 3, the space of the flow path between the valve 3 and the porous pressure loss object 7 is reduced, and an instantaneous pressure change during the switching operation of the valve 3 is achieved. Is suppressed more reliably, and the rapid flow of air is suppressed, thereby further improving the effect of suppressing the abnormal noise “push” caused by the instantaneous pressure change during the switching operation of the valve 3. In this case, as shown in FIGS. 11 and 12, in the case where the pressure loss object 7 is provided in the joint portion 8 directly connected to the valve 3 in the joint portion 8, the pressure loss object 7 is provided in the vicinity of the valve 3 with a simple configuration. Therefore, it is possible to reliably suppress the generation of abnormal noise caused by an instantaneous pressure change during the switching operation of the valve 3 with a simple configuration.

  In the above embodiment, the embodiment in which the plurality of air bags 2 (2a, 2b) are inflated and contracted by one air pump 1 has been described. However, as shown in FIG. You may make it expand | swell and shrink | contract.

  Moreover, although the said embodiment demonstrated in the example which massaged by driving the treatment element 5 with the air bag 2 by air supply / exhaust to the air bag 2, it expand | swells by air supply / exhaust to the air bag 2 Of course, it may be a massage that directly massages with the shrinking air bag 2 (for example, directly massages legs, buttocks, etc. by inflation / deflation of the air bag).

It is an air piping lineblock diagram of one embodiment in a massage machine of the present invention. It is a side view of the treatment element arm block part of one embodiment of a massage machine same as the above, (a) is a side view showing the state where a pair of upper and lower treatment elements separated, and (b) is a pair of upper and lower treatment elements It is a side view of the state which adjoined. It is a partially-omission perspective view seen from the back side same as the above. It is a perspective view of a movable unit same as the above. It is a perspective view of the up-and-down drive part same as the above. It is a perspective view of the same strength driving part. (A) is the disassembled perspective view of the treatment element arm block same as the above, (b) is the disassembled perspective view further disassembled and seen from the other direction. It is a perspective view of the chair which incorporated the mechanism unit same as the above in the backrest. It is explanatory drawing explaining moving a mechanism block same as the above up and down along a rack. It is a block circuit diagram same as the above. It is the partially broken perspective view which shows the example which comprised the object for pressure loss in the joint part directly connected to the 2 series 3 way solenoid valve same as the above. It is sectional drawing same as the above. It is sectional drawing of a 2 series 3 way solenoid valve same as the above. It is an air piping block diagram of other embodiment of this invention. It is an air piping block diagram of a comparative example. It is an air piping block diagram of a prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Air pump 2 Air bag 3 Valve 4 Control circuit 5 Treatment element 6 Air flow path 7 Pressure loss object 8 Joint part

Claims (2)

An air pump, an air bag to which air is supplied from the air pump, and an air flow path provided between the air pump and the air bag, which controls air supply to the air bag and air exhaust from the air bag. And a control circuit for controlling the air pump and the valve, and the massage is performed by driving the treatment element directly with the air bag or with the air bag by supplying and exhausting air to the air bag In the machine, the valve communicates between the air bag and the air bag to drive the air pump to supply air to the air bag, and to communicate with the air bag and the exhaust part to exhaust air from the air bag. If it made with a three-way solenoid valve capable of switching, and the joint portion is provided in the air bag side of the outlet of the three-way solenoid valve, to interior pressure loss for porous surfaces having air permeability as a air pressure loss in the joint that made Te Massage machine according to symptoms. 2. The massage according to claim 1, wherein the three-way solenoid valve comprises a two-way three-way solenoid valve having a two-joint joint portion, and each of the two-joint portion is internally provided with a porous pressure loss object. Machine.

Images