JP2006212257A - Massage machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a massage machine eliminating any possibility of damaging an air pump by quickly deflating an air bag in a simple constitution. <P>SOLUTION: This massage machine is provided with an air pump generating air to be supplied to an air bag 10 for retaining, an air supply/exhaust solenoid selector valve 20 having an exhaust port R and an air supply port P connected to an outlet 32a of a pump 32, an external exhaust solenoid on/off valve connected to an air supply pipe 27 for connecting the port P to the outlet 32a, an exhaust solenoid valve 22 provided in return pipes 28 and 29 for connecting a suction pipe 25 connected to the suction port 32b to the exhaust port R, and a vacuum prevention hole provided in te suction pipe 25 connected to the suction port 32b and sucking the outside air into the suction pipe 25 when forcedly deflating the air bag 10. The selector valve 20 supplies air to the air bag 10 when being energized and discharges the air from the air bag 10 when non-energized. The on/off valve 21 is opened when being energized and closed when non-energized. The solenoid valve 22 connects the port R to the suction port 32b when being energized and cuts off the connection between the port R and the suction port 32b when non-energized. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a massage machine such as a massage mat for performing massage by expansion and contraction of an airbag provided in a mat body, for example.

  2. Description of the Related Art Conventionally, a massage mat is known in which air discharged from a massage air bag is exhausted into a case equipped with an air pump, and the air in the case is sucked by the air pump (for example, , See Patent Document 1).

This technique is excellent in that the efficiency of exhaust from the air bag can be improved because the air in the air bag can be discharged by suction of the air pump.
Japanese Patent No. 3012114 (paragraphs 0018, 0021-0024, FIGS. 1 and 5)

  In the technique of Patent Document 1, the air pump can suck the air in the case with the air pump even after the air in the air bag is completely sucked out by the suction action of the air pump. Does not suddenly become an abnormal negative pressure state. However, a case where air discharged from the air bag flows in is required, and this case needs to have a pressure resistant structure to some extent.

  These problems can be improved if the air discharged from the air bag is directly sucked by the air pump. However, if this is done, the negative pressure state of the air pump suddenly advances from the time when the air in the air bag is completely sucked out, which may overload the air pump and cause damage to the air pump. There is. In particular, when the air pump is a vane pump, there is a high possibility that the vane may be deformed and damaged by an abnormal negative pressure, and therefore an improvement is required.

  An object of the present invention is to provide a massage machine that can rapidly shrink an air bag with a simple structure and that does not cause damage to an air pump.

  In order to solve the above-described problems, the present invention has an air pump that generates compressed air supplied to a holding airbag, an air supply port connected to an exhaust port and an outlet of the air pump, Sometimes connected to the air supply piping connecting the air supply port and the discharge port, and the electromagnetic switching valve for air supply / exhaust that is responsible for supplying air to the holding air bag and discharging air from the holding air bag when not energized It is provided on the external discharge electromagnetic on-off valve that opens when energized and closes when de-energized, and the return pipe connected to the suction pipe connected to the suction port of the air pump and the exhaust port. The exhaust solenoid valve that shuts off the communication between the exhaust port and the suction port when not energized and the suction passage system with the suction pipe, and the outside air during forced exhaust of the holding air bag It sucked and provided with a vacuum prevention hole.

  According to the present invention, since the air discharged from the air bag is returned to the air pump and directly sucked through the piping and the suction piping to shrink the air bag, a large capacity is required for temporarily storing the air discharged from the air bag. In addition, the air bag can be rapidly contracted with a simple configuration, and at that time, the outside air is sucked into the suction piping system through the vacuum prevention hole, so that it is possible to provide a massage machine that does not cause the air pump to be damaged.

  A first embodiment of the present invention will be described with reference to FIGS.

  Reference numeral 1 in FIG. 1 denotes a massage machine, for example, a massage mat, and the mat body (massage machine body) 2 is rectangular. For example, the portions indicated by reference signs A and B in FIG. 1 of the mat body 2 are formed so as to be more easily folded than other portions, and the mat body 2 can be folded at these portions A and B when not in use.

  On the surface (human body support surface) side of the mat body 2 that contacts the human body, a plurality of massage airbags 3 to 9 that repeatedly expand and contract by air supply and exhaust and a holding airbag 10 are disposed. These air bags 3 to 10 are all made of fabric-type air bags. Fabric-type airbags use synthetic resin sheets with stretchable fabrics laminated on one side as a material, and air bags are attached to the bag body, which is formed into a bag shape by heat sealing or the like. It will be.

  The airbag 3 is disposed at a position for massaging the left shoulder of the human body, and the airbag 4 is disposed at a position for massaging the right shoulder of the human body. The airbag 5 is disposed at a position for massaging the left back portion of the human body, and the airbag 6 is disposed at a position for massaging the right back portion of the human body. The airbag 7 is disposed at a position for massaging the left waist of the human body, and the airbag 8 is disposed at a position for massaging the right waist of the human body. The airbag 9 is disposed at a position for massaging or holding the neck shoulder portion of the human body.

  The holding airbag 10 is arranged at a position for holding the lower leg of a human body, for example. The volume of the holding airbag 10 is larger than the individual volumes of the massage airbags 3-9. When this air bag 10 is used, in addition to repeated expansion and contraction at a slower speed than the expansion and contraction of the massage air bags 3 to 9, the inflated state is maintained and the lower leg of the human body is desired. Hold in a raised state.

  At one end in the longitudinal direction of the mat body 2, preferably at the end close to the holding airbag 10, an air distribution unit 11, a drive unit 31, and a circuit unit 35 are arranged. The drive unit 31 and the circuit unit 35 may be built in the mat body 2 so as not to be detached or attached. In the case where the drive unit 31 and the circuit unit 35 are detachable from the mat body 2, it is preferable to make them an integral unit in terms of handling convenience.

  The drive unit 31 includes an air pump 32 shown in FIG. For example, a vane pump can be suitably used as the air pump 32. The circuit unit 35 includes a controller (not shown) that controls each solenoid valve (described later) of the drive unit 31 and the air distribution unit 11. As shown in FIG. 1, a remote controller 36 is electrically connected to the circuit unit 35 by wire or wirelessly.

  Although not shown, the remote controller 36 is provided with a height adjustment button for the holding airbag 10 in addition to a liquid crystal display, a power switch, and various massage mode selection buttons. The height adjustment button has a bidirectional pressing portion for increasing or decreasing the inflation height of the airbag 10. When any one of the pressing portions is pressed, an operation input corresponding to the time during which the pressing portion is pressed is continuously given to the circuit portion 35 and the driving portion 31 operates, so that air supply to the airbag 10 or A discharge is made. This supply or discharge operation is stopped when the pressing of the pressing portion is released.

  As shown in FIG. 2, the air distribution unit 11 includes a normally-open ventilation electromagnetic opening / closing valve 12, supply / exhaust electromagnetic valves 13 to 19 for individually supplying and exhausting the massage air bags 3 to 9, and holding An electromagnetic switching valve 20 for supply / exhaust with respect to the airbag 10, a normally closed external discharge electromagnetic opening / closing valve 21 with respect to the airbag 10, an electromagnetic valve 22 for exhausting with respect to the airbag 10, and a vacuum prevention hole 23 are provided. The illustration of the supply / exhaust solenoid valves 15 to 18 is omitted.

  The venting solenoid on-off valve 12 has a port P and a port R, and is in a state where the communication between the ports P and R is cut off when energized (ON), and the ports P and R communicate when not energized (OFF). Hold the state. The port P of the electromagnetic on-off valve 12 is connected to the suction port 32 a of the air pump 32 through the suction pipe 25. The port R of the electromagnetic on-off valve 12 is open to the atmosphere. The suction pipe 25 includes a flexible air tube and a pipe joint 26 disposed in an intermediate portion of the tube.

  For example, as shown in FIG. 3, the pipe joint 26 is integrally formed in a T shape with first to third ends. The first end portion 26 a of the pipe joint 26 is connected to the port P of the venting electromagnetic on-off valve 12, and the second end portion 26 b of the pipe joint 26 is connected to the suction port 32 a of the air pump 32. A vacuum prevention hole 23 is integrally formed in the pipe joint 26. The vacuum prevention hole 23 is a minute hole, and communicates the inside and the outside of the suction pipe 25.

  In the configuration in which the vacuum prevention hole 23 is formed integrally with the pipe joint 26, the vacuum prevention hole 23 is formed at the same time as the formation of the pipe joint 26. Therefore, no post-processing is required to open the vacuum prevention hole 23. Thus, it is preferable for cost reduction. The vacuum prevention hole 23 connects the air tube of the suction passage system that guides air to the air pump 32 (this forms a part of the suction pipe 25), that is, the pipe joint 26 and the suction port 32a. An air tube or pipe 26 and the air supply / exhaust electromagnetic switching valve 20 are connected to guide the air sucked out of the holding air bag 10 forcibly, or the pipe 26 and the ventilation electromagnetic opening / closing. An air tube connected to the valve 12 (which forms a part of the suction pipe 25) can be provided.

  The supply / exhaust solenoid valves 13 to 19 are all the same and have a port A, a port P, and a port R. Port A is connected to any of massage air bags 3 to 9 via a flexible air tube. The port P that functions as an air supply port is connected to the discharge port 32b of the air pump 32 via a flexible air tube. The port R that functions as an exhaust port is open to the atmosphere. These solenoid valves 13 to 19 are switched to a state in which the port A is connected to the port P when energized (ON), that is, a state in which air is supplied to the massage airbag connected to the port P, and not energized (OFF). Sometimes it is switched to a state where the port A is connected to the port R, that is, a state where the massage air bag is exhausted to the atmosphere. Energization / non-energization of these air supply / exhaust solenoid valves 13 to 19 is controlled individually or simultaneously.

  The supply / exhaust electromagnetic switching valve 20 has a port A, a port P, and a port R. The port A is connected to the holding airbag 10 via a flexible air tube. The port P functioning as an air supply port is connected to the discharge port 32b of the air pump 32 via an air supply pipe 27 made of a flexible air tube. Port R is used as an exhaust port. When the electromagnetic switching valve 20 is energized (ON), the air bag 10 communicates with the port P that is an air supply port, and the communication state between the air bag 10 and the port R that is an exhaust port is cut off. Further, when the solenoid switching valve 20 is not energized (OFF), the airbag 10 communicates with the port (exhaust port) R, and the communication between the airbag 10 and the port (supply port) P is cut off. .

  The external discharge electromagnetic on-off valve 21 has a port P and a port R. The port P is connected in the middle of an air supply pipe 27 connecting the port P of the electromagnetic switching valve 20 and the discharge port 32b, and the port R is open to the atmosphere. The electromagnetic open / close valve 21 is in an open state in which the ports P and R are communicated when energized (ON), and is closed in a state in which the communication of the ports P and R is disconnected when de-energized (OFF).

  The exhaust solenoid valve 22 has a port P and a port A. The port (intake port) P is connected to the third end portion 26 c of the pipe joint 26 via a flexible air tube 28. Accordingly, the port P of the exhaust solenoid valve 22 is connected to the suction port 32 a of the air pump 32. A port A of the electromagnetic valve 22 is connected to a port R which is an exhaust port of the supply / exhaust electromagnetic switching valve 20 via a flexible air tube 29. The exhaust solenoid valve 22 is in an open state that allows the ports P and A to communicate with each other when energized (ON), and is in a closed state that interrupts the communication between the ports P and A when not energized (OFF). The air tubes 28 and 29 form a return pipe that connects the port R of the electromagnetic switching valve 20 and the suction pipe 25, and an exhaust electromagnetic valve 22 is provided in the middle of the return pipe.

  With the massage mat 1 having the above-described configuration, the remote controller 36 is operated to select and inflate / contract one of the massage air bags 3 to 9, or select a plurality and inflate / contract sequentially or simultaneously. In this case, the air pump 32 is turned off (non-energized state) with the ventilation solenoid on / off valve 12, the supply / exhaust solenoid switching valve 20, the external discharge solenoid on / off valve 21 and the exhaust solenoid valve 22 turned off. In synchronism with driving by turning on (energizing), ON / OFF to the air supply / exhaust solenoid valve connected to the selected massage airbag is repeated a predetermined number of times.

  For example, when the massage airbag 3 is selected, when the air supply / exhaust solenoid valve 13 is turned on, the port P and the port A of the solenoid valve 13 communicate with each other to supply air to the airbag 3. The air bag 3 is inflated and presses the human body. When the supply / exhaust solenoid valve 13 is turned off, the port R and port A of the solenoid valve 13 communicate with each other, and the air in the airbag 3 receives the weight of the human body and passes through the port R to the outside. As it is discharged, the airbag 3 contracts and the press is released. By repeating this, air massage for the human body is performed.

  Air supply to the air pump 32 at the time of this massage is performed by sucking outside air from the venting electromagnetic on-off valve 12 that is open at the time of OFF, and guiding it to the air pump 32 through the suction pipe 25. Further, the electromagnetic switching valve 20 for supply / exhaust that is turned off is in the exhaust state, but the exhaust solenoid valve 22 connected to the port R is turned off and closed, and the external discharge valve that is turned off is turned off. The electromagnetic on-off valve 21 is also closed. For this reason, a part of the air discharged from the air pump 32 does not pass through the external discharge electromagnetic on-off valve 21 and the exhaust electromagnetic valve 22, and the aforementioned air supply / exhaust to the massage air bag is reliably executed. The

  For example, when the human foot (lower leg) is pushed up and held prior to the above massage, or when the human foot is pushed up and held irrespective of the massage, the holding air is operated by the remote controller 36. The bag 10 may be inflated and held. In this case, only the air supply / exhaust electromagnetic switching valve 20 is turned ON in synchronization with the air pump 32 being turned ON, and all other valves are maintained in the OFF state. The energized ports P and A of the electromagnetic switching valve 20 are communicated. For this reason, the air bag 10 communicates with the port P which is an air supply port, and the air compressed by the air pump 32 driven in synchronism with this is led to the air bag 10 through the air supply pipe 27, The airbag 10 is inflated.

  The degree of expansion can be adjusted by releasing the pressure that designates the height adjustment push button on the remote controller 36 as “high” when the user feels appropriate. With this release, the operation of the air pump 32 is stopped and the supply / exhaust electromagnetic switching valve 20 is switched to the OFF state.

  When the airbag 10 is excessively inflated by the above operation, that is, when the push-up height of the lower leg is too high, first, the height adjustment push button on the remote controller 36 is designated as “low”. A pressing operation is performed to turn on only the exhaust solenoid valve 22 to open it. As a result, when the air pump 32 is stopped, a path communicating with the atmosphere is formed through the supply / exhaust electromagnetic switching valve 20, the return pipe, and the venting electromagnetic on-off valve 12 in sequence. The air in the holding airbag 10 is naturally discharged. In this case, since the pressing load of the airbag 10 by the lower leg of the human body is smaller than that of the upper body, the air in the airbag 10 is slowly exhausted. Therefore, by releasing the pressing operation that designates the height adjustment push button on the remote controller 36 as “low” at an appropriate time, the exhaust solenoid valve 22 is turned off to be in a closed state. The airbag 10 can be held in an inflated state in which the lower leg of the human body is in a desired pushed-up height. Therefore, the height adjustment of the lower leg is easy.

  In the state where the lower leg of the human body is held at a desired pushed-up height as described above, all the valves 12 and 20 to 22 are in a non-energized (OFF) state. For this reason, the coils of these solenoid valves do not generate heat and the temperature does not rise.

  Further, in order to inflate and retract the holding airbag 10 a predetermined number of times, the ON / OFF state of the electromagnetic switching valve 20 for supply / exhaust described above is turned ON, and the electromagnetic valve 22 for exhausting is turned ON under the OFF state of the electromagnetic switching valve 20. The operation may be repeated a predetermined number of times. This expansion is automatically executed when a predetermined mode, for example, a mode for getting to bed is selected. In this case, since the volume of the air bag 10 is large, expansion and contraction due to air supply and exhaust to the air bag 10 is performed at a considerably slow speed compared to the expansion and contraction of the massage air bag. No pressure is applied to the lower leg.

  Further, when the holding air bag 10 is not disturbed at the end of the sleep mode, or when the massage mat 1 is folded into a closet or the like, the holding air bag 10 is used. In order to contract, the external discharge electromagnetic on-off valve 21 and the exhaust electromagnetic valve 22 are both turned on to establish a communication state while the supply / exhaust electromagnetic switching valve 20 is maintained in the OFF state, and the ventilation electromagnetic on-off valve The air pump 32 may be turned on and driven while the air pump 12 is turned on to be in the shut-off state.

  As a result, the air pump 32 passes through the port A and port R of the air supply / exhaust electromagnetic switching valve 20 from the air bag 10, further through the open exhaust electromagnetic valve 22, and from the pipe joint 26 through the suction pipe 25. A forced exhaust passage reaching the suction port 32a is formed. Accordingly, since the air in the holding airbag 10 is sucked into the air pump 32 through the forced exhaust passage, the airbag 10 can be quickly contracted and flattened by the forced exhaust. In this case, the compressed air discharged from the discharge port 32 b of the air pump 32 is released into the atmosphere from the external discharge electromagnetic on-off valve 21 via the air supply pipe 27.

  As described above, the structure in which the air in the air bag 10 is directly sucked by the air pump 32 and the air bag 10 is rapidly contracted does not require a pressure-resistant structure case in which the air discharged from the air bag 10 flows. The configuration is simple. Then, when the air in the airbag 10 is completely removed by the forced exhaust as described above, the air volume passing through the vacuum prevention hole 23 of the pipe joint 26 is increased from that time, and a constant intake air volume for the air pump 32 is secured. . Therefore, it is possible to prevent the inside of the air pump 32 from being in an abnormally high negative pressure state and receiving damage such as deformation of the vane.

  A second embodiment of the present invention will be described with reference to FIG. Since 2nd Embodiment is the same as 1st Embodiment except the matter demonstrated below, it attaches | subjects the same code | symbol as 1st Embodiment about the same matter, and abbreviate | omits description.

  In the second embodiment, a normally-closed exhaust solenoid valve 41 is added to the configuration of the first embodiment so that the massage airbags 3 to 8 can be forced to exhaust. The solenoid valve 41 has a port P and a port A, similar to the exhaust solenoid valve 22. A port (intake port) P of the solenoid valve 41 has the same configuration as that of the pipe joint 26 and is provided at the third end portion of a T-shaped pipe joint 42 interposed in the middle of the suction pipe 25 with flexible air. It is connected via a tube 43. Therefore, the port P of the exhaust solenoid valve 41 is connected to the suction port 32 a of the air pump 32. A port A of the electromagnetic valve 41 is connected to a port R which is an exhaust port of each of the supply / exhaust electromagnetic valves 13 to 19 via a flexible air tube 44. The exhaust solenoid valve 41 is in an open state that allows the ports P and A to communicate with each other when energized (ON), and is in a closed state that interrupts the communication between the ports P and A when not energized (OFF). The air tubes 43 and 44 form a return pipe that connects the port R of the supply / exhaust solenoid valves 13 to 19 and the suction pipe 25, and an exhaust solenoid valve 41 is provided in the middle of the return pipe. Further, although not shown, the pipe joint 42 is also provided with a vacuum prevention hole composed of a small hole. The vacuum prevention hole may be provided in at least one of the pipe joints 26 and 42.

  When one or more selected solenoid valves for supply / exhaust among the supply / exhaust solenoid valves 13 to 19 are turned on, the exhaust solenoid valve 41 is maintained in an OFF state, and the selected solenoid valve for supply / exhaust is selected. When is turned off, the energization is controlled by the circuit unit so that the exhaust solenoid valve 41 is in the ON state for a predetermined time in synchronism with it. For this reason, when the selected solenoid valve for air supply / exhaust is turned ON and air is supplied to the massage airbag connected to this valve, the solenoid valve 41 for exhaust gas is closed, and the selected electromagnetic solenoid for air supply / exhaust is selected. When the valve is turned off and the massage air bag connected to the valve is exhausted, the exhaust solenoid valve 41 is opened.

  At this time, the air pump 32 is driven synchronously, and the venting electromagnetic on-off valve 12 is turned on to be in a closed state. At the same time, the external discharge electromagnetic on-off valve 21, the supply / exhaust electromagnetic switching valve 20 for the holding airbag 10 and the exhaust electromagnetic valve 22 are all turned off. For this reason, the air in the selected massage airbag passes through the forced exhaust path formed by the return pipe composed of the air tubes 43 and 44, the air tube connecting the pipe joint 42 and the suction port 32a of the air pump 32. The air pump 32 is directly sucked. Thereby, not only the weight of a human body but the forced air exhaust by the air pump 32 can quickly contract the massage airbag in an inflated state. In this case, since the exhaust solenoid valve 22 with respect to the holding airbag 10 is in the closed state, the negative intake pressure of the air pump 32 does not reach the airbag 10 and the airbag 10 is in an inflated state. That state is maintained.

  Despite the fact that the massage air bag is a fabric type, the air inside the air bag can be quickly extracted as described above, so that the pressure associated with the expansion of the massage air bag and the subsequent relaxation associated with the release of the pressure can be reduced. You can clearly perceive it and give it a sharp air massage. Moreover, since the number of times of expansion / contraction of the massage airbag within a predetermined time increases as the time required for contraction of the massage airbag decreases, this is preferable for massage.

  At the end of the forced exhaust described above for the massage air bag, the outside air is sucked into the suction pipe 25 through the vacuum prevention hole of the pipe joint 42, so that the inside of the air pump 32 is in an abnormally high negative pressure state. It is possible to prevent the vane from being damaged such as deformation. Matters other than those described above are the same as those in the first embodiment, and the problems of the present invention can be solved as described above even in the second embodiment.

  A third embodiment of the present invention will be described with reference to FIG. Since 3rd Embodiment is the same as 1st Embodiment except the matter demonstrated below, it attaches | subjects the same code | symbol as 1st Embodiment about the same matter, and abbreviate | omits description.

  In the third embodiment, a normally open supply / exhaust switching electromagnetic valve 51 is provided in place of the ventilation electromagnetic on-off valve 12 and the exhaust electromagnetic valve 22 of the first embodiment. The electromagnetic valve 51 has a port A, a port P, and a port R. The port A is connected to an exhaust port R of the supply / exhaust electromagnetic switching valve 20 via a flexible air tube 44. The port P that functions as an intake port is connected to one end of the pipe joint 52 via a flexible air tube 43. The pipe joint 52 is a straight tube, and the other end is connected to the discharge port 32b of the air pump 32 via an air supply pipe 27 made of a flexible air tube. Although not shown, the pipe joint 52 made of a synthetic resin molded product is provided with a vacuum prevention hole made of a small hole. The port R of the supply / exhaust switching electromagnetic valve 51 is used as an exhaust port.

  The solenoid valve 51 is in a switching state in which the port A and the port P communicate with each other and the communication between the port A and the port R is cut off when energized (ON). Further, the solenoid valve 51 is in a switching state in which the port A communicates with the port (exhaust port) R and the communication between the port A and the port (intake port) P is cut off when the solenoid valve 51 is not energized (OFF).

  When the air pump 32 is driven while the supply / exhaust switching electromagnetic valve 51 is OFF, the outside air can be sucked into the air pump 32 through the port R and the port P, but at this time, the port R and the port A are not in communication. In this state, the intake negative pressure of the air pump 32 does not reach the holding airbag 10.

  Further, when the air pump 32 is driven while the supply / exhaust switching electromagnetic valve 51 is energized, the air in the airbag 10 can be forcibly exhausted. In addition, when the supply / exhaust switching solenoid valve 51 is energized while the air pump 32 is stopped, the air in the airbag 10 can be discharged naturally through the vacuum prevention hole of the pipe joint 52. .

  Matters other than those described above are the same as those of the first embodiment, and the third embodiment can also solve the problems of the present invention. Moreover, the third embodiment is preferable in that the number of electromagnetic stools to be used can be reduced.

  In addition, this invention is not restrict | limited to each said embodiment, For example, it can apply also to a chair type or bed type massage machine.

The figure which shows schematically arrangement | positioning of the various components with respect to the mat main body of the massage mat which concerns on 1st Embodiment of this invention. The block diagram which shows the channel | path system of the massage mat of FIG. Sectional drawing which expands and shows the pipe joint used for the channel | path system of FIG. The block diagram which shows the channel | path system of the massage mat which concerns on 2nd Embodiment of this invention. The block diagram which shows the channel | path system | path of the massage mat which concerns on 3rd Embodiment of this invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Massage mat (massage machine), 2 ... Mat body (massage machine body), 3-9 ... Air bag for massage, 10 ... Air bag for holding, 12 ... Electromagnetic on-off valve for ventilation, 13-19 ... For air supply / exhaust Electromagnetic valve, 20 ... Electromagnetic switching valve for supply / exhaust, 21 ... Electronic on-off valve for external discharge, 22 ... Electromagnetic valve for exhaust, 23 ... Vacuum prevention hole, P ... Port, A ... Port, R ... Port, 25 ... Suction piping , 26 ... pipe joint, 27 ... air supply pipe, 28 and 29 ... air tube (return pipe), 41 ... solenoid valve for exhaust, 42 ... pipe joint, 43 and 44 ... air tube (return pipe), 51 ... air supply and exhaust Switching solenoid valve, 52 ... Fitting

Claims (3)

With massage machine body;
A holding airbag provided in the main body and used in an inflated state;
An air pump for generating compressed air to be supplied to the airbag;
It has an air supply port connected to the exhaust port and the discharge port of the air pump, and communicates the holding air bag with the air supply port when energized and blocks communication between the holding air bag and the exhaust port. And an electromagnetic switching valve for supply / exhaust that connects the holding airbag to the exhaust port and shuts off the communication between the holding airbag and the supply port when not energized;
An external on-off solenoid on-off valve connected to an air supply pipe connecting the air supply port and the discharge port and opened when energized and closed when deenergized;
Provided in a suction pipe connected to the suction port of the air pump and a return pipe connected to the exhaust port, and connects the exhaust port to the suction port when energized, An exhaust solenoid valve that cuts off communication;
A vacuum prevention hole provided in the suction passage system having the suction pipe;
Massage machine equipped with. With massage machine body;
An air bag for massage that is provided on the main body and is repeatedly inflated and used;
An air pump for generating compressed air to be supplied to each of these air bags;
An air supply port connected to an exhaust port and a discharge port of the air pump, and the air bag communicates with the air supply port when energized, and the communication between the air bag and the exhaust port is interrupted; and An air supply / exhaust electromagnetic switching valve that communicates the air bag with the exhaust port when de-energized and blocks communication between the air bag and the air supply port;
An external on-off solenoid on-off valve connected to an air supply pipe connecting the air supply port and the discharge port and opened when energized and closed when deenergized;
Provided in a suction pipe connected to the suction port of the air pump and a return pipe connected to the exhaust port, and connects the exhaust port to the suction port when energized, An exhaust solenoid valve that cuts off communication;
A vacuum prevention hole provided in the suction passage system having the suction pipe;
Massage machine equipped with.   The massage machine according to claim 1 or 2, wherein the suction passage system has a pipe joint made of an integrally formed product in the middle, and the vacuum prevention hole is formed integrally with the pipe joint.

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