JP2010172478A - Air massage machine and massage chair - Google Patents

Air massage machine and massage chair Download PDF

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JP2010172478A
JP2010172478A JP2009018025A JP2009018025A JP2010172478A JP 2010172478 A JP2010172478 A JP 2010172478A JP 2009018025 A JP2009018025 A JP 2009018025A JP 2009018025 A JP2009018025 A JP 2009018025A JP 2010172478 A JP2010172478 A JP 2010172478A
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air
airbag
airbags
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massage
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JP5103413B2 (en
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Mitsuharu Terada
光治 寺田
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Panasonic Electric Works Co Ltd
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Panasonic Electric Works Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide an air massage machine capable of suppressing a contact of a user's body with a body case while retaining massage effects. <P>SOLUTION: First airbags 23 and 24 include inflation/deflation portions 23a and 24a which are inflatable/deflatable by the feed/exhaust of air by an air feed/exhaust device, and partition sections 32 which partition the internal spaces of the first airbags 23 and 24 to partition them into non-inflation/-deflation portions 23b and 24b where no air is fed/exhausted by the air feed/exhaust device. The inflation/deflation portions 23a and 24a of the first airbags 23 and 24 are provided with bellows sections 35 around their peripheries so as to increase the displacements of pressing sections X, and the non-inflation/-deflation portions 23b and 24b are also provided with similar bellows sections 35. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、膨縮動作可能なエアバッグを有するエアマッサージ機及びそのエアマッサージ機を備えたマッサージ椅子に関するものである。   The present invention relates to an air massage machine having an inflatable / deflating air bag and a massage chair provided with the air massage machine.

従来、膨縮動作可能なエアバッグにて使用者の施療部位に対し、マッサージを行うエアマッサージ機が広く知られている。
例えば、特許文献1のエアマッサージ機は、座部の前部に使用者の脚部をのせることができるオットマンに脚部用のエアマッサージ機が備えられている。この脚部用のマッサージ機は、本体ケースに使用者の脚部を配置可能に形成される左右一対の収容溝部の外表面側で、使用者の脚部を左右方向から挟み込むことが可能なエアバッグが設けられている。そして、そのエアバッグを膨縮動作させることで、使用者の脚部を押圧してマッサージを行うものである。
DESCRIPTION OF RELATED ART Conventionally, the air massage machine which massages a user's treatment site | part with the airbag which can be expanded / contracted is known widely.
For example, the air massage machine of patent document 1 is equipped with the air massage machine for legs in the ottoman which can put a user's leg on the front part of a seat part. This leg massager is an air that can sandwich the user's legs from the left and right sides on the outer surface side of the pair of left and right housing grooves formed so that the user's legs can be placed in the body case. A bag is provided. Then, by inflating and contracting the airbag, the leg of the user is pressed and massage is performed.

特開2001−95867号公報JP 2001-95867 A

ところで、特許文献1のエアマッサージ機において、例えば本体ケースが硬質の成型品(例えばポリプロピレン)からなる場合、使用者の脚部と本体ケースの収容溝部(側壁)の外表面とが接触すると痛みを伴ってしまうため、使用者の脚部と本体ケースの収容溝とが接触しないようにエアバッグを配置することが望ましい。その解決手段として、例えば大きい(大容量の)エアバッグを用いることが考えられるが、そうするとマッサージを行う際に最も押圧力の高い部分(押圧部位)が狙った位置(例えば脹脛部のみ等)からずれてしまい好適なマッサージを行うことが難しかった。   By the way, in the air massage machine of patent document 1, when a main body case consists of hard moldings (for example, polypropylene), when a user's leg part and the outer surface of the accommodation groove part (side wall) of a main body case contact, it will be painful. Therefore, it is desirable to arrange the airbag so that the leg portion of the user and the housing groove of the main body case do not come into contact with each other. For example, a large (large-capacity) airbag may be used as a solution. However, when performing massage, from the position where the highest pressing force (pressing part) is aimed (for example, only the calf part). It shifted and it was difficult to perform a suitable massage.

本発明は、上記課題を解決するためになされたものであって、その目的は、マッサージ効果を維持しつつ使用者の身体が本体ケースと接触することを抑制可能なエアマッサージ機及びマッサージ椅子を提供することにある。   The present invention has been made to solve the above-described problems, and an object of the present invention is to provide an air massage machine and a massage chair that can suppress a user's body from contacting the body case while maintaining a massage effect. It is to provide.

上記課題を解決するために、請求項1に記載の発明は、エア給排装置による空気の給排気によって膨縮動作可能なエアバッグを本体ケースの外表面に備え、前記エアバッグを膨縮動作させて使用者にマッサージを行うエアマッサージ機であって、前記エアバッグは、前記エア給排装置による空気の給排気が行われて膨縮動作可能な膨縮部と、前記エア給排装置による空気の給排気が不能な非膨縮部とに区切るべく、前記エアバッグの内部空間を区切る区切り部を備えたことをその要旨とする。   In order to solve the above-described problem, the invention described in claim 1 is provided with an airbag that can be inflated and contracted by air supply / exhaust by an air supply / exhaust device on an outer surface of a main body case, and the airbag is inflated / expanded. An air massaging machine for massaging a user, wherein the air bag includes an inflating / contracting portion that is inflated / contracted by air supply / exhaust by the air supply / exhaust device, and the air supply / exhaust device The gist of the present invention is to provide a delimiter that delimits the internal space of the airbag in order to divide it into a non-inflatable portion that cannot supply and exhaust air.

この発明では、エアバッグには、エア給排装置による空気の給排気が行われて膨縮動作可能な膨縮部と、エア給排装置による空気の給排気が不能な非膨縮部とに区切るべく、エアバッグの内部空間を区切る区切り部が備えられる。これにより、エアバッグの膨縮部によって狙った位置のマッサージを行いつつ、例えば本体ケースの外表面を非膨縮部にて覆うことが可能となるため、膨縮部によってマッサージ効果を維持しつつ、膨縮部及び非膨縮部にて使用者の身体が本体ケースと接触することを抑えることも可能となる。   According to the present invention, the airbag includes an inflatable portion that can be inflated / contracted by air supply / exhaust by the air supply / exhaust device and a non-inflatable portion that cannot supply / exhaust air by the air supply / exhaust device In order to divide, the division part which divides the internal space of an airbag is provided. This makes it possible to cover, for example, the outer surface of the main body case with the non-inflatable / contracted portion while performing massage at the position aimed by the inflatable / contracted portion of the airbag, so that the inflating / contracting portion maintains the massage effect. In addition, it is possible to suppress the user's body from coming into contact with the main body case at the inflating / contracting portion and the non-expanding / contracting portion.

請求項2に記載の発明は、請求項1に記載のエアマッサージ機において、前記エアバッグは、前記膨縮部及び非膨縮部が区切られた第1エアバッグとして構成され、その第1エアバッグに加えて膨縮部を備えた第2エアバッグが用いられ、前記第1エアバッグの非膨縮部に前記第2エアバッグの膨縮部が重ねて配置されたことをその要旨とする。   According to a second aspect of the present invention, in the air massage machine according to the first aspect, the airbag is configured as a first airbag in which the inflatable portion and the non-inflatable portion are separated, and the first air The gist of the invention is that a second airbag having an inflating / contracting portion is used in addition to the bag, and the inflating / contracting portion of the second airbag is placed on the non-inflating / contracting portion of the first airbag. .

この発明では、エアバッグは、膨縮部及び非膨縮部が区切られた第1エアバッグとして構成され、その第1エアバッグに加えて膨縮部を備えた第2エアバッグが用いられ、第1エアバッグの非膨縮部に第2エアバッグの膨縮部が重ねて配置される。これにより、第1エアバッグの非膨縮部がスペーサの役割となり、第2エアバッグによる使用者の身体(脚部)の押圧力を大きくすることができる。また、所定押圧力になると第1エアバッグの非膨縮部が変形するため、使用者に対して過度の押圧力を与えることが抑制される。   In the present invention, the airbag is configured as a first airbag in which an inflatable part and a non-inflated part are separated, and a second airbag provided with an inflated part in addition to the first airbag is used. The expansion / contraction part of the second airbag is arranged so as to overlap the non-inflation part of the first airbag. Thereby, the non-inflatable part of the first airbag serves as a spacer, and the pressing force of the user's body (leg part) by the second airbag can be increased. Moreover, since the non-inflation part of a 1st airbag will deform | transform if it becomes predetermined | prescribed pressing force, giving an excessive pressing force with respect to a user is suppressed.

請求項3に記載の発明は、請求項2に記載のエアマッサージ機において、前記第2エアバッグは、前記第1エアバッグよりも前記使用者側に配置されたことをその要旨とする。
この発明では、第2エアバッグは、第1エアバッグよりも使用者側に配置される。このように、第2エアバッグが第1エアバッグよりも使用者側に配置されることで、第2エアバッグの膨縮部による膨縮動作にて第1エアバッグが押し出されることが抑制されるため、第1エアバッグの膨縮部の膨縮動作によるマッサージに影響を与えることが抑えられる。
The gist of the invention according to claim 3 is that, in the air massage machine according to claim 2, the second airbag is arranged closer to the user than the first airbag.
In the present invention, the second airbag is disposed closer to the user than the first airbag. As described above, the second airbag is disposed closer to the user than the first airbag, thereby suppressing the first airbag from being pushed out by the expansion / contraction operation by the expansion / contraction portion of the second airbag. Therefore, it is possible to suppress the influence on the massage due to the expansion / contraction operation of the expansion / contraction part of the first airbag.

請求項4に記載の発明は、請求項2又は3に記載のエアマッサージ機において、前記第1エアバッグの膨縮部には、押圧部位の変位を増大させるべくその周囲に蛇腹部が設けられるものであり、前記非膨縮部においても同様の蛇腹部が設けられたことをその要旨とする。   According to a fourth aspect of the present invention, in the air massage machine according to the second or third aspect of the present invention, the inflated / contracted portion of the first airbag is provided with a bellows portion around it to increase the displacement of the pressing portion. The gist is that a similar bellows portion is provided in the non-expanded portion.

この発明では、第1エアバッグの膨縮部には、押圧部位の変位を増大させるべくその周囲に蛇腹部が設けられるものであり、非膨縮部においても同様の蛇腹部が設けられる。つまり、非膨縮部を膨縮部同様に蛇腹形状の蛇腹部を設けることで、断面係数が大きくなり、非膨縮部を変形しにくい構成とすることができ、非膨縮部をより好適なスペーサとして使用することができる。   In the present invention, the bellows portion is provided around the expansion / contraction portion of the first airbag so as to increase the displacement of the pressing portion, and the same bellows portion is also provided in the non-inflation portion. In other words, by providing the bellows-like bellows portion like the bellows-like portion in the non-expandable portion, the section modulus can be increased and the non-expandable portion can be made difficult to deform, and the non-expandable portion is more suitable. Can be used as a spacer.

請求項5に記載の発明は、使用者が着座可能な座部の前部にオットマンが設けられ、該オットマンには、請求項1〜4のいずれか一項に記載のエアマッサージ機が備えられて構成されることをその要旨とする。   As for invention of Claim 5, an ottoman is provided in the front part of the seat part which a user can sit down, and this ottoman is equipped with the air massage machine as described in any one of Claims 1-4. The gist is to be configured.

この発明では、使用者が着座可能な座部の前部にオットマンが設けられ、該オットマンには、請求項1〜4のいずれか一項に記載のエアマッサージ機が備えられて構成されるため、請求項1〜4の効果と同様の効果を奏することができるマッサージ椅子を提供することができる。   In this invention, since the ottoman is provided in the front part of the seat which can be seated by the user, the ottoman is provided with the air massage machine according to any one of claims 1 to 4. Moreover, the massage chair which can show | play the effect similar to the effect of Claims 1-4 can be provided.

本発明によれば、マッサージ効果を維持しつつ使用者の身体が本体ケースと接触することを抑制可能なエアマッサージ機及びマッサージ椅子を提供することができる。   ADVANTAGE OF THE INVENTION According to this invention, the air massage machine and massage chair which can suppress that a user's body contacts a main body case, maintaining a massage effect can be provided.

マッサージ椅子の概略構成図である。It is a schematic block diagram of a massage chair. エアマッサージ機を備えたオットマンの斜視図である。It is a perspective view of an ottoman provided with an air massage machine. エアマッサージ機を備えたオットマンの正面図である。It is a front view of an ottoman provided with an air massage machine. 膨縮部及び非膨縮部について説明するための説明図である。It is explanatory drawing for demonstrating an expansion / contraction part and a non-expansion / contraction part. 膨縮部及び非膨縮部について説明するための説明図である。It is explanatory drawing for demonstrating an expansion / contraction part and a non-expansion / contraction part. エアマッサージ機を備えたオットマンの斜視図である。It is a perspective view of an ottoman provided with an air massage machine. エアマッサージ機を備えたオットマンの正面図である。It is a front view of an ottoman provided with an air massage machine.

(第1実施形態)
以下、本発明を具体化した第1実施形態を図面に従って説明する。
図1は、本実施形態のエアマッサージ機を備えたマッサージ椅子の概略構成を示す。図1に示すように、マッサージ椅子10の脚部11は図示しない床面に載置されるとともに、その脚部11の上部には使用者が着座可能な座部12が固定されている。その座部12の後側には、使用者が背中をもたれ掛けさせるための背もたれ部13が傾動可能に設けられるとともに、座部12の前側には使用者の脚を載せることができるオットマン14が傾動可能に設けられている。また、使用者の腕を置くための肘掛け部15が背もたれ部13から座部12の両側前方にかけて設けられている。
(First embodiment)
A first embodiment of the present invention will be described below with reference to the drawings.
FIG. 1 shows a schematic configuration of a massage chair provided with the air massage machine of the present embodiment. As shown in FIG. 1, the leg portion 11 of the massage chair 10 is placed on a floor surface (not shown), and a seat portion 12 on which a user can sit is fixed to the upper portion of the leg portion 11. On the rear side of the seat portion 12, a backrest portion 13 for allowing the user to lean back is provided so as to be able to tilt, and on the front side of the seat portion 12, an ottoman 14 on which the user's legs can be placed. It can be tilted. An armrest 15 for placing the user's arm is provided from the backrest 13 to the front of both sides of the seat 12.

背もたれ部13は、前面が開口された硬質樹脂材料からなる図示しない本体ケース内に、背もたれ部13の上下方向に沿って図示しないガイドレールが設けられ、このガイドレールに沿って上下方向にマッサージ機構16が組み付けられている。このマッサージ機構16には、図示しない各種駆動モータが備えられており、これら各種駆動モータの駆動によってマッサージ機構16の上下動や、該マッサージ機構16に備えられる一対の施療子16aによる所定の施療動作が行われるようになっている。   The backrest portion 13 is provided with a guide rail (not shown) along the vertical direction of the backrest portion 13 in a body case (not shown) made of a hard resin material whose front surface is opened, and a massage mechanism is provided along the guide rail in the vertical direction. 16 is assembled. The massage mechanism 16 is provided with various drive motors (not shown). The drive of these various drive motors causes the massage mechanism 16 to move up and down, and a predetermined treatment operation by the pair of treatment elements 16 a provided in the massage mechanism 16. Is to be done.

オットマン14は、座部12に着座した使用者の脚部(脹脛部)を挿入配置可能な脚部側オットマン14aと、使用者の足部を載せて支持する足部側オットマン14bとで構成され、脚部側オットマン14aが前記座部12の前部に傾動可能に設けられ、脚部側オットマン14aの前部に前記足部側オットマン14bが傾動可能に設けられている。尚、これらオットマン14a,14bは、例えばポリプロピレン等の硬質な成型品からなる本体ケース17を図示しないカバーで覆われて構成されている。   The ottoman 14 includes a leg-side ottoman 14a into which a user's leg (sheath part) seated on the seat 12 can be inserted and arranged, and a foot-side ottoman 14b that supports the user's foot by placing it thereon. The leg-side ottoman 14a is tiltably provided at the front portion of the seat portion 12, and the foot-side ottoman 14b is tiltably provided at the front portion of the leg-side ottoman 14a. The ottomans 14a and 14b are configured by covering a main body case 17 made of a hard molded product such as polypropylene, for example, with a cover (not shown).

また、本実施形態のマッサージ椅子10の脚部側オットマン14aには、空気を利用して使用者に対して施療を行うエアマッサージ機20としての機能が備えられている。エアマッサージ機20は、図1又は図2に示すように、椅子型のマッサージ椅子10の脚部11内に設けられたエア給排装置21と、このエア給排装置21と図示しない給排気ホースにより接続されるとともにマッサージ椅子10の脚部側オットマン14aの本体ケース17に配置される第1エアバッグ23,24とから構成されている。   Moreover, the leg part ottoman 14a of the massage chair 10 of this embodiment is provided with the function as the air massage machine 20 which treats a user using air. As shown in FIG. 1 or 2, the air massage machine 20 includes an air supply / discharge device 21 provided in a leg portion 11 of a chair-type massage chair 10, an air supply / discharge device 21 and a supply / exhaust hose (not shown). And the first airbags 23 and 24 arranged in the main body case 17 of the leg-side ottoman 14a of the massage chair 10.

エアマッサージ機20を構成する第1エアバッグ23,24は、図2に示すように、脚部側オットマン14aの本体ケース17に形成される左右一対の収容溝部25に沿って、設けられ、使用者の脚部(脹脛部)を左右方向から挟み込むことが可能となっている。   As shown in FIG. 2, the first airbags 23 and 24 constituting the air massage machine 20 are provided and used along a pair of left and right accommodation grooves 25 formed in the body case 17 of the leg side ottoman 14a. It is possible to sandwich a person's leg part (swelling part) from the left-right direction.

第1エアバッグ23,24は、図2〜図4に示すように給排気ホースと接続される接続口30と、その接続口30から流入及び流出する空気を通す流路31とを備え、前記エア給排装置21からの空気を前記接続口30及び流路31を介し、第1エアバッグ23,24のそれぞれに設けられる膨縮動作可能な膨縮部23a,24aまで供給されるようになっている。   As shown in FIGS. 2 to 4, the first airbags 23 and 24 include a connection port 30 connected to the air supply / exhaust hose, and a flow path 31 through which air flows in and out from the connection port 30. The air from the air supply / discharge device 21 is supplied to the inflatable and deflating portions 23a and 24a provided in the first airbags 23 and 24, respectively, via the connection port 30 and the flow path 31. ing.

また第1エアバッグ23,24には、その内部空間を区切ってエア給排装置21からの空気の給排気によって膨縮動作可能な前記膨縮部23a,24aと、エア給排装置21からの空気の給排気が不能とされて膨縮動作不能な非膨縮部23b,24bとなるように区切る区切り部32が設けられている。尚、第1エアバッグ23,24の膨縮部23a,24a及び非膨縮部23b,24bは本体ケース17の外表面(側壁)17aに配置されている。   In addition, the first airbags 23, 24 are separated from the air supply / discharge devices 21 by the expansion / contraction portions 23 a, 24 a that can be expanded and contracted by supplying / exhausting air from the air supply / discharge devices 21. A delimiter 32 is provided to divide the air into non-expandable parts 23b and 24b that are incapable of air supply / exhaust and cannot be inflated / expanded. Note that the inflated and deflated portions 23 a and 24 a and the non-inflated and deflated portions 23 b and 24 b of the first airbags 23 and 24 are disposed on the outer surface (side wall) 17 a of the main body case 17.

第1エアバッグ23,24の膨縮部23a,24aには、使用者の脚部を押圧する押圧部位Xの変位を増大させるべくその周囲に蛇腹部35が設けられる。また、第1エアバッグ23,24の非膨縮部23b,24bにも、同様にその表面に蛇腹形状の蛇腹部35が設けられている。この蛇腹部35は、図5に示すようにエアバッグ23,24の膨縮部23a,24a及び非膨縮部23b,24bの前面36及び後面37の両面に設けられている。また、前面36及び後面37に設けられる蛇腹部35は、前面36側の凹部36a及び凸部36bと、後面37側の凹部37a及び凸部37bとで構成されており、それぞれの凹部36a,37aとそれぞれの凸部36b,37bとが交互に配置されるようになっている。また、蛇腹部35は、前面36側の凹部36aの位置の後面37側が後面37側の凸部37bが位置するように、前面36側の凸部36bの位置の後面37側が後面37側の凹部37aが位置するように形成されている。そのため、エアバッグ23,24成形段階において前面36側の凹部36a及び凸部36bが後面37側の凸部37b及び凹部37aと当接しにくくなっており、成形段階における成形ミスを抑えることができる。   Bellows 35 are provided around the expansion / contraction portions 23a and 24a of the first airbags 23 and 24 so as to increase the displacement of the pressing portion X that presses the leg portion of the user. Similarly, the bellows-shaped bellows portion 35 is provided on the surfaces of the non-inflated portions 23b, 24b of the first airbags 23, 24 as well. As shown in FIG. 5, the bellows portion 35 is provided on both the front surface 36 and the rear surface 37 of the inflated / deflated portions 23 a, 24 a and the non-inflated portions 23 b, 24 b of the airbags 23, 24. The bellows portion 35 provided on the front surface 36 and the rear surface 37 is composed of a concave portion 36a and a convex portion 36b on the front surface 36 side, and a concave portion 37a and a convex portion 37b on the rear surface 37 side, and the respective concave portions 36a and 37a. And the convex portions 36b and 37b are alternately arranged. Further, the bellows portion 35 is a recess in which the rear surface 37 side of the convex portion 36b on the front surface 36 side is the rear surface 37 side so that the rear surface 37 side of the concave portion 36a on the front surface 36 side is located on the rear surface 37 side. 37a is formed to be positioned. Therefore, the concave portions 36a and the convex portions 36b on the front surface 36 side are less likely to come into contact with the convex portions 37b and the concave portions 37a on the rear surface 37 side in the molding step of the airbags 23 and 24, and molding errors in the molding step can be suppressed.

尚、第1エアバッグ23,24は、その膨縮部23a,24a、非膨縮部23b,24b及び蛇腹部35が所謂ブロー成形(袋状に膨らませつつ成形型にて成形)にて一体的に構成されているため、膨縮部23a,24a、非膨縮部23b,24b及び蛇腹部35を別工程で成形するといった工程数の増加を抑えることができ、加工コストも抑えられている。   The first airbags 23 and 24 are integrally formed by so-called blow molding (molded with a molding die while being inflated in a bag shape), with the inflated and contracted portions 23a and 24a, the non-inflated and contracted portions 23b and 24b, and the bellows portion 35. Therefore, it is possible to suppress an increase in the number of steps such as forming the expansion / contraction portions 23a and 24a, the non-expansion / contraction portions 23b and 24b, and the bellows portion 35 in separate steps, and the processing cost is also suppressed.

上記の構成にて、エアマッサージ機20は、エア給排装置21からの空気の給排によりエアバッグ23,24の膨縮部23a,24aを膨縮動作させ、マッサージ椅子10に着座した使用者の脚部(脹脛部)等を挟み込んで押圧してマッサージを施すようになっている。   With the above configuration, the air massage machine 20 is a user who is seated on the massage chair 10 by inflating and contracting the inflating / contracting portions 23a and 24a of the airbags 23 and 24 by supplying and discharging air from the air supply / exhaust device 21. The leg part (swelling part) etc. is inserted and pressed to massage.

また、エアマッサージ機20を構成するエアバッグ23,24には、その内部空間が区切られて膨縮部23a,24a及び非膨縮部23b,24bとなるように区切り部32が設けられている。そして膨縮部23a,24a及び非膨縮部23b,24bにてエアマッサージ機20を構成するオットマン14aの本体ケース17の外表面17aが覆うとともに、膨縮部23a,24aが膨縮動作される。そのため、膨縮部23a,24aの膨縮動作にて使用者の身体(脚部)の狙った位置である脹脛部をマッサージして従来の装置と同様のマッサージ効果を維持しつつ、膨縮部23a,24a及び非膨縮部23b,24bにて使用者の脚部(身体)と本体ケース17とが接触することが抑制されている。また、第1エアバッグ23,24の膨縮部23a,24aの表面(前面36及び後面37)に蛇腹部35を形成したため、エア給排装置21による空気供給時に、オットマン14の幅方向に膨張しやすくなり、好適に使用者の脚部を押圧することが可能となる。   In addition, the airbags 23 and 24 constituting the air massage machine 20 are provided with partition portions 32 so that the internal spaces thereof are partitioned into the inflated and deflated portions 23a and 24a and the non-inflated and deflated portions 23b and 24b. . And the outer surface 17a of the main body case 17 of the ottoman 14a which comprises the air massage machine 20 is covered with the expansion / contraction part 23a, 24a and the non-expansion / contraction part 23b, 24b, and expansion / contraction part 23a, 24a is expanded / contracted. . Therefore, the expansion / contraction part is maintained while massaging the calf part which is the target position of the user's body (leg part) by the expansion / contraction operation of the expansion / contraction parts 23a, 24a and maintaining the same massage effect as the conventional device. The contact between the user's leg (body) and the main body case 17 is suppressed at 23a, 24a and the non-expanded parts 23b, 24b. In addition, since the bellows portion 35 is formed on the surfaces (front surface 36 and rear surface 37) of the inflating / contracting portions 23a, 24a of the first airbags 23, 24, the air supply / exhaust device 21 inflates in the width direction of the ottoman 14. It becomes easy to do and it becomes possible to press a user's leg part suitably.

また、非膨縮部23b、24bには、膨縮部23a,24a同様に蛇腹形状の蛇腹部35が設けられることで、断面係数が大きくなり、非膨縮部23b,24bを変形しにくい構成とすることができ、非膨縮部23b,24bをより好適なスペーサとして使用することができる。   Further, the non-expandable portions 23b and 24b are provided with the bellows-shaped bellows portion 35 similarly to the inflated and contracted portions 23a and 24a, so that the section coefficient is increased and the non-expanded portions 23b and 24b are not easily deformed. The non-expanded parts 23b and 24b can be used as more suitable spacers.

次に、本実施形態の特徴的な作用効果を記載する。
(1)エアバッグ23,24には、エア給排装置21による空気の給排気が行われて膨縮動作可能な膨縮部23a,24aと、エア給排装置21による空気の給排気が不能な非膨縮部23b,24bとに区切るべく、エアバッグ23,24の内部空間を区切る区切り部32が備えられる。これにより、エアバッグ23,24の膨縮部23a,24aによって狙った位置のマッサージを行いつつ、例えば本体ケース17の外表面17aを非膨縮部23b,24bにて覆うことが可能となるため、膨縮部23a,24aによってマッサージ効果を維持しつつ、膨縮部23a,24a及び非膨縮部23b,24bにて使用者の身体が本体ケース17と接触することを抑えることも可能となる。
Next, characteristic effects of the present embodiment will be described.
(1) In the airbags 23 and 24, air supply / exhaust by the air supply / exhaust device 21 is performed, and expansion / contraction portions 23a and 24a that can be inflated / contracted, and air supply / exhaust by the air supply / exhaust device 21 are impossible. In order to divide into the non-inflatable parts 23b and 24b, a delimiter 32 that divides the internal space of the airbags 23 and 24 is provided. Accordingly, for example, the outer surface 17a of the main body case 17 can be covered with the non-inflatable / deflated portions 23b and 24b while performing massage at the targeted position by the inflatable / deflating portions 23a and 24a of the airbags 23 and 24. In addition, it is possible to suppress the user's body from coming into contact with the main body case 17 by the expansion / contraction portions 23a, 24a and the non-expansion / contraction portions 23b, 24b while maintaining the massage effect by the expansion / contraction portions 23a, 24a. .

(2)エアバッグ23,24の押圧部位Xの周囲に蛇腹部35を設けたことで、押圧部位Xが膨張しやすくなり、使用者の脚部を挟み込んで押圧し、効果的なマッサージを施すことができる。   (2) Since the bellows portion 35 is provided around the pressing portion X of the airbags 23 and 24, the pressing portion X is easily expanded, and the leg portion of the user is sandwiched and pressed to perform an effective massage. be able to.

(3)第1エアバッグ23,24の膨縮部23a,24aには、押圧部位Xの変位を増大させるべくその周囲に蛇腹部35が設けられるものであり、非膨縮部23b,24bにおいても同様の蛇腹部35が設けられる。つまり、非膨縮部23b,24bを膨縮部23a,24a同様に蛇腹形状の蛇腹部35を設けることで、断面係数が大きくなり、非膨縮部23b,24bを変形しにくい構成とすることができ、非膨縮部23b,24bをより好適なスペーサとして使用することができる。   (3) The bellows portion 35 is provided around the inflated / deflated portions 23a, 24a of the first airbags 23, 24 in order to increase the displacement of the pressing portion X. In the non-inflated portions 23b, 24b, Is also provided with a similar bellows portion 35. That is, by providing the bellows-shaped bellows portion 35 in the same manner as the bellows-like portions 23a and 24a, the non-expandable portions 23b and 24b are configured to increase the cross-sectional modulus and make the non-expandable portions 23b and 24b difficult to deform. The non-expanded parts 23b and 24b can be used as a more suitable spacer.

(第2実施形態)
以下、本発明を具体化した第2実施形態を図6,図7に従って説明する。尚、第1実施形態と同じ部材については同じ符号を付して図面及び説明の全て又は一部を割愛する。
(Second Embodiment)
A second embodiment embodying the present invention will be described below with reference to FIGS. In addition, about the same member as 1st Embodiment, the same code | symbol is attached | subjected and all or one part of drawing and description is omitted.

図1に本実施形態のマッサージ椅子10の第1エアバッグ23,24の内側(マッサージ時において使用者の脚部側)には、図6及び図7に示すように、第1エアバッグ23,24に沿って第2エアバッグ40,41が設けられている。この第2エアバッグ40,41は、前記エア給排装置21と図示しない給排気ホースによって接続される接続口42と、その接続口42から流入及び流出する空気を通す流路43とを備え、第2エアバッグ40,41のそれぞれに設けられる膨縮動作可能な膨縮部40a,41aまで供給されるようになっている。   As shown in FIG. 6 and FIG. 7, the first airbag 23, inside the first airbags 23, 24 of the massage chair 10 of this embodiment (on the user's leg side during massage), 24, second airbags 40 and 41 are provided. The second airbags 40 and 41 include a connection port 42 connected by the air supply / discharge device 21 and a supply / exhaust hose (not shown), and a flow path 43 through which air flows in and out of the connection port 42. The second airbags 40 and 41 are supplied to the inflatable and deflating parts 40a and 41a provided in the second airbags 40 and 41, respectively.

また、第2エアバッグ40,41の膨縮部40a,41aには第1エアバッグ23,24同様にその表面(前面44及び後面45)に蛇腹形状の蛇腹部46(図6中、第2エアバッグ40,41のそれぞれに1つずつ図示)が設けられている。   Further, like the first airbags 23 and 24, the inflated and contracted portions 40 a and 41 a of the second airbags 40 and 41 have a bellows-shaped bellows portion 46 (in FIG. 6, the second bellows portion 46). One airbag is provided for each of the airbags 40, 41).

上記のように構成されたエアマッサージ機20は、エア給排装置21からの空気の給排により第1エアバッグ23,24の膨縮部23a,24aと、第2エアバッグ40,41の膨縮部40a,41aを膨縮動作させ、マッサージ椅子10に着座した使用者の脚部(脹脛部)等を挟み込んで押圧してマッサージを施すようになっている。尚、第2エアバッグ40,41の膨縮部40a,41aには、第1エアバッグ23,24の膨縮部23a,24aと同様に押圧部位Xの周囲に、押圧部位Xの変位を大きくするべく蛇腹部35が形成されている。   The air massage machine 20 configured as described above is configured such that the inflation / decompression portions 23a and 24a of the first airbags 23 and 24 and the inflation of the second airbags 40 and 41 are performed by supplying and discharging air from the air supply / exhaust device 21. The contracting portions 40a and 41a are inflated and contracted, and a leg portion (swelling portion) of a user seated on the massage chair 10 is sandwiched and pressed to perform massage. In addition, in the inflating / contracting portions 40a, 41a of the second airbags 40, 41, the displacement of the pressing portion X is greatly increased around the pressing portion X, similarly to the inflating / contracting portions 23a, 24a of the first airbags 23, 24. A bellows portion 35 is formed as much as possible.

また、エアバッグ23,24,40,41は、膨縮部23a,24a及び非膨縮部23b,24bを備えた第1エアバッグ23,24と、膨縮部40a,41aを備えた第2エアバッグ40,41とで構成され、第1エアバッグ23,24の非膨縮部23b,24bに第2エアバッグ40,41の膨縮部40a,41aが重ねて配置されている。そのため、第1エアバッグ23,24の非膨縮部23b,24bがスペーサの役割となり、第2エアバッグ40,41による使用者の身体(脚部)の押圧力を大きくすることができる。また、所定押圧力になると第1エアバッグ23,24の非膨縮部23b,24bが変形するため、使用者に対して過度の押圧力を与えることが抑制される。   The airbags 23, 24, 40, and 41 include first airbags 23 and 24 that include inflated and deflated parts 23a and 24a and non-inflated and deflated parts 23b and 24b, and second that include inflated and deflated parts 40a and 41a. The airbags 40 and 41 are configured such that the inflated and deflated portions 40a and 41a of the second airbags 40 and 41 overlap the non-inflated and deflated portions 23b and 24b of the first airbags 23 and 24, respectively. For this reason, the non-inflatable portions 23b and 24b of the first airbags 23 and 24 serve as spacers, and the pressing force of the user's body (legs) by the second airbags 40 and 41 can be increased. Moreover, since the non-inflation parts 23b and 24b of the 1st airbags 23 and 24 will deform | transform if it becomes predetermined | prescribed pressing force, giving an excessive pressing force with respect to a user is suppressed.

また、第2エアバッグ40,41は、第1エアバッグ23,24よりも使用者側(収容溝部)に配置されている。このため、第2エアバッグ40,41が第1エアバッグよりも使用者側に配置されることで、第2エアバッグ40,41の膨縮部40a,41aによる膨縮動作にて第1エアバッグ23,24が押し出されることが抑制されるため、第1エアバッグ23,24の膨縮部23a,24aの膨縮動作によるマッサージに影響を与えることが抑えられる。   The second airbags 40 and 41 are disposed closer to the user side (accommodating groove) than the first airbags 23 and 24. For this reason, since the second airbags 40 and 41 are arranged closer to the user than the first airbag, the first airbag can be expanded and contracted by the expansion and contraction portions 40a and 41a of the second airbags 40 and 41. Since the bags 23 and 24 are suppressed from being pushed out, it is possible to suppress the massage caused by the expansion / contraction operation of the expansion / contraction portions 23a and 24a of the first airbags 23 and 24.

また、エアバッグの非膨縮部23b,24bは、その表面(前面44及び後面45)が蛇腹形状となる蛇腹部46が形成されている。このような構成とすることで、非膨縮部23b,24bの断面係数が大きくなり、変形しにくい構成とすることができ、非膨縮部23b,24bをより好適なスペーサとして使用することができる。これにより、第2エアバッグ40,41の膨縮部40a,41aの膨縮動作を安定して行うことが可能となる。   Further, the non-inflated portions 23b and 24b of the airbag are formed with a bellows portion 46 whose surfaces (front surface 44 and rear surface 45) have a bellows shape. By adopting such a configuration, the non-expandable portions 23b, 24b have a larger section modulus and can be made difficult to deform, and the non-expanded portions 23b, 24b can be used as more suitable spacers. it can. Thereby, the expansion / contraction operation | movement of the expansion / contraction part 40a, 41a of the 2nd airbag 40, 41 can be performed stably.

以上記述したように、本実施形態によれば、前記第1実施形態の効果に加え、以下の効果を奏することができる。
(1)エアバッグ23,24,40,41は、膨縮部23a,24a及び非膨縮部23b,24bが区切られた第1エアバッグ23,24として構成され、その第1エアバッグ23,24に加えて膨縮部40a,41aを備えた第2エアバッグ40,41が用いられ、第1エアバッグ23,24の非膨縮部23b,24bに第2エアバッグ40,41の膨縮部40a,41aが重ねて配置される。これにより、第1エアバッグ23,24の非膨縮部23b,24bがスペーサの役割となり、第2エアバッグ40,41による使用者の身体(脚部)の押圧力を大きくすることができる。また、所定押圧力になると第1エアバッグ23,24の非膨縮部23b,24bが変形するため、使用者に対して過度の押圧力を与えることが抑制される。
As described above, according to this embodiment, in addition to the effects of the first embodiment, the following effects can be achieved.
(1) The airbags 23, 24, 40, and 41 are configured as first airbags 23 and 24 in which the inflated and deflated parts 23a and 24a and the non-inflated and deflated parts 23b and 24b are partitioned. In addition to 24, second airbags 40 and 41 having inflated and deflated portions 40a and 41a are used, and inflated and deflated of second airbags 40 and 41 in non-inflated and deflated portions 23b and 24b of first airbags 23 and 24, respectively. The parts 40a and 41a are arranged so as to overlap each other. As a result, the non-inflated parts 23b, 24b of the first airbags 23, 24 serve as spacers, and the pressing force of the user's body (legs) by the second airbags 40, 41 can be increased. Moreover, since the non-inflation parts 23b and 24b of the 1st airbags 23 and 24 will deform | transform if it becomes predetermined | prescribed pressing force, giving an excessive pressing force with respect to a user is suppressed.

(2)また、第1エアバッグ23,24の非膨縮部23b、24bには、蛇腹部35が形成され、その非膨縮部23b,24bと第2エアバッグ40,41の膨縮部40a,41aとが重ねて配置されるため、第2エアバッグ40,41の膨縮部40a,41aの膨張時に、その膨張動作を安定して行うことが可能となる。   (2) The bellows portion 35 is formed in the non-inflatable portions 23b, 24b of the first airbags 23, 24, and the non-inflatable portions 23b, 24b and the inflatable portions of the second airbags 40, 41 are formed. Since 40a and 41a are arranged in an overlapping manner, the inflating operation can be stably performed when the inflating / contracting portions 40a and 41a of the second airbags 40 and 41 are inflated.

(3)第2エアバッグ40,41は、第1エアバッグ23,24よりも使用者側(内側)に配置される。このように、第2エアバッグ40,41が第1エアバッグよりも使用者側に配置されることで、第2エアバッグ40,41の膨縮部40a,41aによる膨縮動作にて第1エアバッグ23,24が押し出されることが抑制されるため、第1エアバッグ23,24の膨縮部23a,24aの膨縮動作によるマッサージに影響を与えることが抑えられる。   (3) The second airbags 40 and 41 are arranged closer to the user side (inner side) than the first airbags 23 and 24. As described above, the second airbags 40 and 41 are arranged closer to the user side than the first airbag, so that the first airbag can be expanded and contracted by the expansion and contraction portions 40a and 41a of the second airbags 40 and 41. Since the airbags 23 and 24 are suppressed from being pushed out, it is possible to suppress the massage caused by the expansion / contraction operation of the expansion / contraction portions 23a and 24a of the first airbags 23 and 24.

尚、本発明の実施形態は、以下のように変更してもよい。
・上記第1実施形態では、蛇腹部35を前面36側の凹部36a及び凸部36bと、後面37側の凹部37a及び凸部37bとで構成したが、前面36側の凹部36a及び凸部36b、若しくは後面37側の凹部37a及び凸部37bの少なくとも一方で構成してもよい。また、第2実施形態の蛇腹部46についても同様である。また、各エアバッグ23,24,40,41の前面36,44及び後面37,45に蛇腹部35,46の数や形成位置を任意に変更してもよく、また、第1エアバッグ23,24及び第2エアバッグ40,41のいずれか一方のみに蛇腹部35,46を設ける構成や、膨縮部23a,24a及び非膨縮部23b,24bのいずれか一方にのみに蛇腹部35を設ける構成、更には蛇腹部35,46を省略した構成を採用してもよい。
In addition, you may change embodiment of this invention as follows.
In the first embodiment, the bellows portion 35 is constituted by the concave portion 36a and the convex portion 36b on the front surface 36 side, and the concave portion 37a and the convex portion 37b on the rear surface 37 side, but the concave portion 36a and the convex portion 36b on the front surface 36 side. Or you may comprise at least one of the recessed part 37a by the side of the rear surface 37, and the convex part 37b. The same applies to the bellows portion 46 of the second embodiment. In addition, the number of bellows portions 35 and 46 and the formation positions may be arbitrarily changed on the front surfaces 36 and 44 and the rear surfaces 37 and 45 of the airbags 23, 24, 40, and 41. The bellows part 35 is provided only in either one of the inflatable parts 23a, 24a and the non-inflated parts 23b, 24b. A configuration in which the bellows portions 35 and 46 are omitted may be employed.

・上記第2実施形態では、第1エアバッグ23,24の非膨縮部23b,24bの内側に第2エアバッグ40,41の膨縮部40a,41aを配置する構成としたが、これに限らず、第2エアバッグ40,41の膨縮部40a,41aの内側に第1エアバッグ23,24の非膨縮部23b,24bを配置する構成を採用してもよい。   -In the said 2nd Embodiment, it was set as the structure which has arrange | positioned the expansion-contraction part 40a, 41a of the 2nd airbag 40, 41 inside the non-expansion-contraction part 23b, 24b of the 1st airbag 23,24. Not limited to this, a configuration may be adopted in which the non-inflatable portions 23b, 24b of the first airbags 23, 24 are arranged inside the inflatable portions 40a, 41a of the second airbags 40, 41.

・上記第2実施形態では、第1エアバッグ23,24の内側に第2エアバッグ40,41を配置する構成としたが、これに限らず、第2エアバッグ40,41の内側に第1エアバッグ23,24を配置する構成を採用してもよい。また、第2エアバッグ40,41に非膨縮部を設けてもよい。また、第2エアバッグ40,41を省略した構成を採用してもよい。   In the second embodiment, the second airbags 40 and 41 are arranged inside the first airbags 23 and 24. However, the present invention is not limited thereto, and the first airbags 40 and 41 are arranged inside the first airbags 40 and 41. You may employ | adopt the structure which arrange | positions the airbags 23 and 24. FIG. Moreover, you may provide a non-inflation part in the 2nd airbag 40,41. Moreover, you may employ | adopt the structure which abbreviate | omitted the 2nd airbag 40,41.

・上記各実施形態では、所謂ブロー成形にて第1エアバッグ23,24を成形したが、その他の成形方法にて第1エアバッグ23,24を成形してもよい。例えば、膨縮部23a,24a及び非膨縮部23b,24bを別体で形成し、膨縮部23a,24a及び非膨縮部23b,24bを溶着して一体的に成形してもよい。また、特に言及していないが、第2エアバッグ40,41は、ブロー成形やその他の成形方法を用いてよい。   In each of the above embodiments, the first airbags 23 and 24 are molded by so-called blow molding, but the first airbags 23 and 24 may be molded by other molding methods. For example, the expansion / contraction parts 23a, 24a and the non-expansion / contraction parts 23b, 24b may be formed separately, and the expansion / contraction parts 23a, 24a and the non-expansion / contraction parts 23b, 24b may be welded and formed integrally. Although not specifically mentioned, the second airbags 40 and 41 may use blow molding or other molding methods.

・上記各実施形態では、エアバッグ23,24,40,41を脚部側オットマン14aの収容溝部25に配置する構成としたが、その他の場所に更にエアバッグを増設してもよい。   In each of the above embodiments, the airbags 23, 24, 40, and 41 are arranged in the housing groove 25 of the leg-side ottoman 14a. However, airbags may be added to other locations.

・上記各実施形態では、背もたれ部13にマッサージ機構16を有したマッサージ椅子10に、エアバッグ23,24,40,41によるエアマッサージ機20を設ける構成としたが、その他のタイプのマッサージ機にエアバッグ23,24,40,41によるエアマッサージ機20を設ける構成を採用してもよい。また、オットマン14単体にエアマッサージ機20を設ける構成を採用してもよい。   In each of the above embodiments, the massage chair 10 having the massage mechanism 16 in the backrest portion 13 is provided with the air massage machine 20 using the airbags 23, 24, 40, and 41. However, in other types of massage machines, You may employ | adopt the structure which provides the air massage machine 20 by the airbag 23,24,40,41. Moreover, you may employ | adopt the structure which provides the air massage machine 20 in the ottoman 14 single-piece | unit.

・上記各実施形態では、マッサージ椅子10の背もたれ部13にマッサージ機構16を設けたが、マッサージ機構16を省略した構成を採用してもよい。
・上記各実施形態では、脚部側オットマン14aを傾動可能としたが、傾動不能、つまり固定する構成であってもよい。また、足部側オットマン14bを傾動可能としたが、傾動不能、つまり固定する構成であってもよい。
In each of the above embodiments, the massage mechanism 16 is provided in the backrest portion 13 of the massage chair 10, but a configuration in which the massage mechanism 16 is omitted may be employed.
In each of the above embodiments, the leg-side ottoman 14a can be tilted. Further, although the foot side ottoman 14b can be tilted, it may not be tilted, that is, may be fixed.

・上記各実施形態では、オットマン14の収容溝部25に配置される第1エアバッグ23,24に適用したが、これ以外の位置にエアバッグを設け、そのエアバッグに、膨縮部23a,24a及び非膨縮部23b,24bに区切る区切り部32を設けるといった上記各実施形態を適用してもよい。   In each of the above embodiments, the present invention is applied to the first airbags 23 and 24 arranged in the accommodation groove portion 25 of the ottoman 14, but an airbag is provided at a position other than this, and the airbags are inflated and contracted portions 23a and 24a. In addition, each of the above embodiments may be applied, in which a delimiter 32 that delimits the non-expandable portions 23b and 24b is provided.

・上記各実施形態では、肘掛け部15を設ける構成としたが、肘掛け部15を省略した構成を採用してもよい。   In each of the above embodiments, the armrest portion 15 is provided. However, a configuration in which the armrest portion 15 is omitted may be employed.

10…マッサージ椅子、12…座部、14,14a,14b…オットマン、17…本体ケース、17a…外表面、20…エアマッサージ機、21…エア給排装置、23,24…第1エアバッグ、23a,24a,40a,41a…膨縮部、23b,24b…非膨縮部、32…区切り部、35,46…蛇腹部、40,41…第2エアバッグ、X…押圧部位。   DESCRIPTION OF SYMBOLS 10 ... Massage chair, 12 ... Seat part, 14, 14a, 14b ... Ottoman, 17 ... Main body case, 17a ... Outer surface, 20 ... Air massage machine, 21 ... Air supply / discharge device, 23, 24 ... 1st airbag, 23a, 24a, 40a, 41a ... inflated / contracted part, 23b, 24b ... non-inflated / contracted part, 32 ... delimiter part, 35, 46 ... bellows part, 40, 41 ... second airbag, X ... pressing part.

Claims (5)

エア給排装置による空気の給排気によって膨縮動作可能なエアバッグを本体ケースの外表面に備え、
前記エアバッグを膨縮動作させて使用者にマッサージを行うエアマッサージ機であって、
前記エアバッグは、前記エア給排装置による空気の給排気が行われて膨縮動作可能な膨縮部と、前記エア給排装置による空気の給排気が不能な非膨縮部とに区切るべく、前記エアバッグの内部空間を区切る区切り部を備えたことを特徴とするエアマッサージ機。
An air bag that can be inflated and contracted by air supply / exhaust by an air supply / discharge device is provided on the outer surface of the main body case,
An air massage machine that performs massage on a user by inflating and contracting the airbag,
The airbag should be divided into an inflatable portion that can be expanded and contracted by supplying and exhausting air by the air supply and exhaust device and a non-inflatable portion that cannot supply and exhaust air by the air supply and exhaust device. An air massage machine comprising a partition portion for partitioning the internal space of the airbag.
請求項1に記載のエアマッサージ機において、
前記エアバッグは、前記膨縮部及び非膨縮部が区切られた第1エアバッグとして構成され、その第1エアバッグに加えて膨縮部を備えた第2エアバッグが用いられ、
前記第1エアバッグの非膨縮部に前記第2エアバッグの膨縮部が重ねて配置されたことを特徴とするエアマッサージ機。
In the air massage machine according to claim 1,
The airbag is configured as a first airbag in which the inflatable portion and the non-inflatable portion are separated, and a second airbag provided with an inflatable portion in addition to the first airbag is used.
An air massage machine according to claim 1, wherein an inflated / contracted portion of the second airbag is placed on a non-inflated / deflated portion of the first airbag.
請求項2に記載のエアマッサージ機において、
前記第2エアバッグは、前記第1エアバッグよりも前記使用者側に配置されたことを特徴とするマッサージ機。
In the air massage machine according to claim 2,
The massage machine according to claim 1, wherein the second airbag is disposed closer to the user than the first airbag.
請求項2又は3に記載のエアマッサージ機において、
前記第1エアバッグの膨縮部には、押圧部位の変位を増大させるべくその周囲に蛇腹部が設けられるものであり、前記非膨縮部においても同様の蛇腹部が設けられたことを特徴とするマッサージ機。
In the air massage machine according to claim 2 or 3,
The inflated / contracted portion of the first airbag is provided with a bellows portion around it to increase the displacement of the pressing portion, and a similar bellows portion is also provided in the non-inflated / deflated portion. And massage machine.
使用者が着座可能な座部の前部にオットマンが設けられ、該オットマンには、請求項1〜4のいずれか一項に記載のエアマッサージ機が備えられて構成されることを特徴とするマッサージ椅子。   An ottoman is provided at a front portion of a seat portion on which a user can sit, and the ottoman is provided with the air massage machine according to any one of claims 1 to 4. Massage chair.
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