JP4661243B2 - Air massage machine - Google Patents

Description

  The present invention relates to an air massage machine that inflates and contracts an air bag by supplying and discharging air with an air pump to treat a human body.

And conventionally a massage machine, air massager performing massaging the bladder to the user by inflation and deflation are widely known by the supply and discharge of air by the air pump (e.g., see Patent Document 1). In recent years, in order to meet the needs of massage diversifying user, we tend to use large air pump in both pressure and flow rate, the air pump and source in this manner using a high output of the air pump The operation sound is also increased, which causes discomfort to the user.

In addition, in the air massage machine of patent document 1, although the silencer is provided in the air supply path which connects an air pump and an air bag, the operation sound of an air pump is aimed at silencing, but the air massage of FIG. the driving sound air pump 2 as machine 1 and some leaking from the intake port 4 of the air pump 2 to the outside while the (C in the figure is an arrow indicating the driving sound air pump 2 to leak) In the air massage machine of Patent Document 1, there is no suppression effect on the driving sound of the air pump that leaks outward from the air pump inlet, and as a result, the driving sound of the air pump is effectively silenced. It wasn't.

In addition, providing a silencer chamber inside the air massage machine also has a problem of installation space, and it is difficult to say that the structure for reducing the sound of driving the air pump is simple.
JP-A-8-308895

  The present invention has been invented in view of the above-described conventional problems, and an object thereof is to provide an air massage machine that can effectively mute the driving sound of an air pump with a simple structure. Is.

In order to solve the above-mentioned problem, an air massage machine according to claim 1 of the present invention is provided in a chair type massage machine 12 having a backrest part 14 behind a seat part 13, and air supply / discharge by the air pump 2. In the air massage machine 1 for inflating and contracting the air bag 3 to treat the user, the air pump 2 is configured so that the bottom surface of the pump housing 6 is supported by a leg 22 made of an elastic material standing from the bottom surface of the pump housing 6. The suction port 4 is supported through a gap S and accommodated in the pump housing 6 and is perforated on the bottom surface of the outer shell 20 of the air pump 2 so as to be opposed to the bottom surface of the pump housing 6. Is connected to the inside of the air pump 2 by connecting one end of a predetermined length of the intake pipe 5 which is L-shaped and silences the drive sound generated by the air pump 2. Secondary connection pipe to the intake pipe member 5 to adjust the length of the tube with which to face the suction port 7 at the other end of the intake pipe member 5 arranged in S to the outside of the shell 20 of the air pump 2 24, wherein the suction port 7 is directed to the front side of the air massage machine 1. According to this, the intake pipe 5 having a predetermined length for muting the driving sound of the air pump 2 is connected to the intake port 4 of the air pump 2 and leaks outward from the intake port 4 of the air pump 2. It is possible to mute the driving sound of the air pump 2 to be passed through the intake pipe 5 and effectively mute the driving sound of the air pump 2.

Also, the driving sound of the air pump 2 that could not be silenced by the intake pipe 5 can be emitted from the suction port 7 of the intake pipe 5 toward the direction other than the user side of the air massage machine 1, that is, air The driving sound of the pump 2 can be prevented from reaching the user directly, and the user's discomfort due to the driving sound of the air pump 2 can be reduced.

Further, air massager according to claim 2, in claim 1, characterized in that a suction opening 7 of the intake pipe member 5 to the outside of the pump housing 6. According to this, when the length of the intake pipe material 5 is increased, the resistance in the pipe increases, the intake efficiency is lowered, and the air pump 2 is overloaded, and the overloaded air is applied to the pump housing 6. The heat generated in the pump 2 is easily trapped and promotes a reduction in the life of the air pump 2, but from the suction port 7 of the intake pipe 5 arranged outside the pump housing 6, Therefore, the air pump 2 can be cooled by the relatively low temperature air, and the life of the air massage machine 1 can be extended.

Further, air massager according to claim 3, in claim 1, the muffler chamber 9 interposed to mute the driving sound air pump 2 in air supply passage 8 which connects the air pump 2 and the air bag 3, The outer shell walls 11 facing each other across the internal space 10 of the noise reduction chamber 9 are brought close to each other at an appropriate place and integrated. According to this, the noise reduction chamber 9 interposed in the air supply path 8 connecting the air pump 2 and the air bag 3 requires a large volume because the pipe cross-sectional area of the pipe line is suddenly enlarged and silenced. Accordingly, the rigidity of the outer shell walls 11 facing each other across the internal space 10 of the noise reduction chamber 9 is lowered, such as the central portion thereof being easily recessed into the internal space 10 of the noise reduction chamber 9. When the outer shell wall 11 vibrates in response to the drive sound of the air pump 2, the drive sound of the air pump 2 leaks out of the silencer chamber 9, but as described above, the internal space 10 of the silencer chamber 9. Since the outer shell walls 11 opposed to each other are placed close to each other at an appropriate position and joined together, the rigidity of the outer shell walls 11 can be increased. The vibration of the wall 11 can be suppressed and the Than is the leakage of air pump 2 driving sound to the outside can be suppressed from the chamber 9.

The present invention has a simple structure in which an intake pipe of a predetermined length is connected to the air pump inlet, reduces the driving noise of the air pump leaking from the air pump inlet, and effectively drives the air pump. There is an advantage that it is possible to mute the sound and reduce the user's discomfort due to the driving sound of the air pump.

In this example, the chair-type massage machine 12 shown in FIGS. 1 to 6 will be described as an example of the air massage machine 1 for treating the user by expanding and contracting the air bag 3 by supplying and discharging air with the air pump 2. . As shown in FIG. 2, the chair-type massage machine 12 is provided with a backrest portion 14 where the user can lean behind the seat portion 13 where the user sits down so that the user can lean. A leg rest 15 on which the thigh is placed is tiltably provided, and a chair body is formed by providing an armrest portion 16 on which the user's elbow is placed on both sides of the seat 13, and the body of the user sitting on the chair body The treatment part 17 is provided in each part of the chair main body so that treatment can be performed with respect to each part.

  The chair type massage machine 12 of the present example is a treatment in which air bags 3 that are inflated and contracted by air supply and discharge by the air pump 2 are arranged on the backrest part 14, the seat part 13, the armrest part 16, and the leg platform 15, respectively. A portion 17 is provided.

  In detail, the treatment part 17a of the backrest part 14 treats the user's waist, and the treatment part 17b provided on the seat surface of the seat part 13 treats the user's buttocks. The treatment part 17c provided on the opposing surface of each armrest part 16 treats the user's thigh, and the leg rest 15 is a pair of legs for placing the pair of legs of the user. Although the leg mounting groove 15a is provided, the treatment part 17d is provided on both sides of the leg placement groove 15a, and the treatment part 17d allows the user to treat the lower leg. . That is, the air massage machine 1 is built in the chair type massage machine 12 of this example.

  In general, the chair-type massage machine 12 is provided with a mechanical treatment unit that performs treatment by pressing a treatment element driven by a motor against the user's body. The mechanical treatment part may be used in combination with the backrest part 14 in FIG.

  FIG. 3 is a schematic configuration diagram of the air massage machine 1 inherent in the chair type massage machine 12 of this example. This air massage machine 1 has an air supply path 8 from the air pump 2 to the air bags 3 through the sound deadening chamber 9 and the switching valve 18. 3, the air pump 2, the muffler chamber 9, and the switching valve 18 are housed in a unitized pump housing 6. The pump housing 6 is located below the seat 13 of the chair body. It is arrange | positioned in the site | part and the air supply path 8 after the switching valve 18 is led to the air bag 3 of the treatment part 17 of each site | part through the inside of a chair main body.

  Specifically, the air pump 2 is compressed air supply means for inflating the air bladder 3, and the outer shell body 20 having a drive unit 19 that generates compressed air is formed in a substantially rectangular box shape as shown in FIG. The lower surface portion is provided with an intake port 4 for sucking air into the drive unit 19, and the pair of discharge ports 21 for discharging compressed air generated by the drive unit 19 are provided on both side portions.

The air pump 2 is supported by a leg portion 22 standing from the bottom of the pump housing 6 as shown in FIG. 1, and the air inlet 4 drilled in the bottom of the outer shell 20 of the air pump 2 is connected to the pump housing 6. Oppositely arranged with a gap S at the bottom. The leg portion 22 is made of an elastic material such as rubber, and absorbs vibrations when the air pump 2 is driven, thereby avoiding the generation of contact noise between the outer shell 20 of the air pump 2 and the pump housing 6. is doing.

  Moreover, the switching valve 18 is provided corresponding to each air bag 3, and although not shown, the operation by the user at the operation unit provided in the chair type massage machine 12 and the control provided in the chair type massage machine 12. Each air bag 3 can be inflated and contracted by a control command in the unit. The silencing chamber 9 is a part provided with an internal space 10 that is interposed in the air supply path 8 and silences the drive sound generated by the air pump 2 on the downstream side of the air pump 2.

By the way, the silencing chamber 9 silences the drive sound generated by the air pump 2 and passing through the air supply path 8 by causing interference in the internal space 10 in which the cross-sectional area of the air supply path 8 is rapidly expanded. require large volume in the inner space 10. When the internal space 10 is formed to have a large volume, the outer shell walls 11 facing each other with the internal space 10 of the sound deadening chamber 9 sandwiched with each other as shown in FIG . When the outer shell wall 11 vibrates by receiving the driving sound of the air pump 2 due to this low rigidity, the driving sound propagates outward from the outer shell wall 11, and as a result, the driving sound of the air pump 2 is transmitted from the muffler chamber 9 to the outside. Leaks out.

  FIG. 6 shows the silencing chamber 9 employed in this example. In the silencing chamber 9, the outer shell walls 11 facing each other with the inner space 10 interposed therebetween are brought close together in a suitable place and joined and integrated to each outer shell wall 11. The vibration of the outer shell wall 11 is suppressed even when the driving sound of the air pump 2 is received, and the leakage of the driving sound of the air pump 2 from the muffler chamber 9 to the outside is reduced.

Specifically, in order to effectively reduce the leakage of the driving sound of the air pump 2 from the silencer chamber 9 to the outside, the rectangular box-shaped outer shell wall 11 of the silencer chamber 9 is most opposed to the inner space 10 therebetween. In the pair of outer shell walls 11a having a large area, the projecting rib portion 23 is formed by recessing the center portion in plan view in the opposing direction, and the ends of the projecting rib portion 23 are welded to each other to form a pair having the largest area of the shell wall 11a are integrated at the center portion, thereby improving the rigidity of the larger pair of shell wall 11a of the smaller largest area relatively rigid. In the figure, 25 is an inlet of the muffler chamber 9 to which the air supply path 8 is connected, and 26 is an outlet of the muffler chamber 9 to which the air supply path 8 is connected.

Driving sound generated by the air pump 2, although from being leaked outwardly from the air inlet 4 of the air pump 2, as described in the background section, the air massager 1 of the present embodiment, the intake The driving sound of the air pump 2 that leaks outward from the opening 4 is suppressed with a simple structure, and the driving sound of the air pump 2 is effectively silenced. Details will be described below.

As shown in FIG. 1, an intake pipe 5 having a predetermined length for muting the drive sound generated by the air pump 2 is connected to the intake port 4 of the air pump 2 in the air massage machine 1 of this example. The intake pipe 5 of this example is an L-shaped pipe that opens both ends in the length direction. The intake pipe 5 has one end in the length direction in the intake port 4 formed in the outer shell 20 of the air pump 2. Connected and communicated with the inside of the air pump 2, and the suction port 7 constituted by the other end in the length direction of the intake pipe 5 is exposed to the outside of the outer shell body 20 of the air pump 2 (the gap S in this example). It is arranged in such a way.

Accordingly, the driving sound of the air pump 2 is silenced by the internal resonance effect through the intake pipe 5 as shown by an arrow A in FIG. It reaches the outside of the pump 2.

  Here, the length dimension of the intake pipe member 5 and the volume of the driving sound of the air pump 2 leaking from the suction port 7 of the intake pipe member 5 have a relationship as shown in the graph of FIG. I found out. That is, the length dimension of the intake pipe 5 (in the graph of FIG. 5, based on the distance L (see FIG. 8) from the L-shaped bent portion 5a of the intake pipe 5 to the suction port 7 at the tip of the intake pipe 5). And the volume of the driving sound of the air pump 2 leaking from the suction port 7 of the intake pipe member 5 has a substantially inversely proportional relationship.

  Therefore, the predetermined length of the intake pipe 5 to be set is the shortest in the range B in which the change in the volume of the driving sound of the air pump 2 according to the change in the length dimension of the intake pipe 5 is not felt by the user. It is preferable to adjust to the length dimension L1 from the viewpoint of manufacturing cost.

  Note that in order to set the intake pipe 5 to a predetermined length that can obtain the silencing effect of the driving sound of the air pump 2, the intake pipe 5 itself can be formed to the predetermined length. As in the massage machine 1, it is preferable to connect the auxiliary connecting pipe 24 composed of a rubber hose or the like to the intake pipe 5 having a certain length and form the intake pipe 5 and the auxiliary connecting pipe 24 to have the predetermined length as a whole. In this case, there is an advantage that the length of the entire intake pipe 5 can be easily adjusted using the auxiliary connecting pipe 24.

As described above, in this example, the driving sound of the air pump 2 leaked from the intake port 4 of the air pump 2 with a simple structure in which the intake pipe 5 having a predetermined length is connected to the intake port 4 of the air pump 2. it is possible to suppression can be effectively achieved silencing of the air pump 2 driving sound.

Furthermore, the suction port 7 of the intake pipe member 5 is in a direction other than the user side who uses the air massage machine 1, such as in front of the massage machine (strictly, the direction other than where the user's ear is located). As a result, the drive sound of the air pump 2 that could not be silenced by the intake pipe 5 is emitted from the suction port 7 of the intake pipe 5 toward a direction other than the user side of the air massage machine 1. to be, that it is possible to prevent the allowed to reach directly to the user the driving sound air pump 2, reduction of user discomfort due to the driving noise air pump 2 is achieved.

  By the way, the length of the intake pipe 5 suitable for silencing differs depending on the frequency of the driving sound of the air pump 2 as described above. However, when the length of the intake pipe 5 increases, The internal resistance increases, the intake efficiency decreases, and the air pump 2 (specifically, the drive unit 19 that is a compressor) is overloaded. A large amount of heat is generated in the air pump 2 due to the overload, and the air pump 2 Will shorten the lifespan.

When the length of the intake pipe 5 is long as described above, it is preferable to arrange the suction port 7 of the intake pipe 5 outside the pump housing 6 as in the air massage machine 1 of FIG. As a result, air outside the pump housing 6 that is maintained at a relatively low temperature as compared with the air inside the pump housing 6 heated by heat is sucked from the suction port 7 of the intake pipe member 5, and the relatively low temperature is The air pump 2 can be cooled with air, and the life of the air massage machine 1 can be extended.

  In addition, since this invention has the characteristics in the structure of the air massage machine 1, it cannot be overemphasized that it can apply to the various massage machines provided with the air massage machine 1 irrespective of the chair type massage machine 12 illustrated.

It is side sectional drawing of the principal part of the air massage machine of the example of embodiment of this invention. It is a perspective view of the chair type massage machine provided with the air massage machine same as the above. It is a schematic block diagram of the air massage machine in a chair type massage machine same as the above. It is the perspective view seen from the downward direction of an air pump same as the above. It is a graph which shows the relationship between the length dimension of the pipe for intake, and the drive sound of the air pump which leaks from the suction inlet of the pipe for intake. It is a sound deadening room of an air massage machine same as the above, (a) is a perspective view, and (b) is a sectional side view. It is a muffler room of a reference example, (a) is a perspective view, and (b) is a sectional side view. It is a sectional side view of the principal part of the air massage machine of other examples of an embodiment of the invention. It is a sectional side view of the principal part of the air massage machine of other examples of an embodiment of the invention. It is explanatory drawing explaining the problem of background art.

DESCRIPTION OF SYMBOLS 1 Air massage machine 2 Air pump 3 Air bag 4 Intake port 5 Intake pipe 6 Pump housing 7 Intake port 8 Air supply path 9 Silence room 10 Interior space 11 Outer shell wall 12 Chair type massage machine

Claims (3)

In an air massage machine that is provided in a chair type massage machine having a backrest part behind the seat part and inflates and contracts the air bag by supplying and discharging air by the air pump, the user performs treatment. A leg portion made of an elastic material standing from the bottom surface of the pump housing is supported through a gap between the bottom surface of the pump housing and accommodated in the pump housing, and drilled in the bottom surface of the outer shell of the air pump. One end of an intake pipe member having a predetermined length, which is L-shaped and silences the driving sound generated by the air pump, is connected to the intake port disposed opposite to the bottom surface of the pump housing. interior communicates, adjust the length of the intake pipe material with which to face the suction port of the other end of the intake pipe material arranged in the gap to the outside of the outer shell of the air pump is a tube An auxiliary connection pipe to an air massager, characterized in that toward the inlet in front of the air massager.   2. The air massage machine according to claim 1, wherein the suction port of the intake pipe is disposed outside the pump housing.   A silencer chamber is installed in the air supply path connecting the air pump and the air bag to mute the drive sound of the air pump, and the outer shell walls facing each other across the inner space of the silencer chamber are joined in close proximity to each other. The air massage machine according to claim 1, which is integrated.

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