JP4182899B2 - Massage chair - Google Patents

Description

  The present invention relates to a massage chair including an ottoman that performs massage on a leg portion of a user.

  Conventionally, a massage chair capable of obtaining a massage effect while sitting on a chair is known. A typical massage chair is one that incorporates a massage mechanism in the backrest or the like provided on the back side of the chair body, and gives massages such as itching and tapping to the user by this massage mechanism. In recent years, many proposals have been made in which an ottoman for leg massage is connected to a chair body (see Patent Document 1). This ottoman is supported by a support arm extending from the front end of the chair body, and the user's leg is fitted and held in the treatment holding part provided on the one side thereof Thus, massage is performed by pressing the legs by the expansion and contraction of the airbag provided in the treatment holding portion. The support arm is rotatably connected to the chair body, and the ottoman is pivotally connected to the chair body through the support arm so as to be swingable in the front-rear direction. Therefore, the user appropriately selects the swing position of the ottoman. Thus, massage can be performed while holding its own leg at a desired angle.

In the conventional massage chair as described above, even if the support arm is positioned in a state where it is suspended from the chair body, the leg holding part of the ottoman protrudes greatly forward, so that it is sufficient for the feet. Space was difficult to secure. On the other hand, it is conceivable that the ottoman is rotated with respect to the support arm so that the protruding portion of the ottoman is not in the way, but in this case, an air hose for supplying / exhausting air to / from the airbag is provided. There has been a problem that the air hose may come off from the connection location or may be damaged due to wrapping around surrounding members as the ottoman rotates.
Japanese Patent Laid-Open No. 11-169417

  The present invention has been invented in view of the above problems, and is capable of rotating an ottoman provided with a treatment airbag without causing an air hose for supplying and exhausting air to the airbag to be disconnected or damaged. It is an object to provide a massage chair that can be used.

In order to solve the above-mentioned problems, the present invention includes an airbag 40 that is supplied and exhausted through an air hose 29 and an ottoman 6 that massages a leg of a user by expansion and contraction of the airbag 40. In the massage chair that is swingably connected to the chair body 1 via the ottoman 6, the ottoman 6 is rotatably connected to the support arm 19, and the rotating shaft 17 that is the center of rotation of the ottoman 6 is connected to the left and right sides of the ottoman 6. An outer air bag 40a that covers both inner side walls of the leg holding grooves 10 provided in the ottoman 6 with the air hoses 29 inserted through the rotary shafts 17 on both sides, respectively, A plurality of inner airbags 40b arranged inside the airbag 40a are provided .

In this way, when the ottoman 6 is not used, the ottoman 6 is rotated and stored at an angle that does not interfere with the ottoman 6, or the angle of the ottoman 6 is appropriately changed to perform various massages. In addition, when the ottoman 6 is rotated in this manner, the air hose 29 connected to the airbag 40 is prevented from being wound around the surrounding members. In addition, by adopting a structure in which the air hose 29 is inserted through the rotary shafts 17 on both sides, the inner diameter of the rotary shaft 17 can be made smaller than when the air hose 29 is inserted through only one side. The inner airbag 40b is a small one arranged in the length direction of the leg holding groove 10, and the outer airbag 40a is inflated and contracted, and the inner airbags 40b are timed with each other. By repeating expansion and contraction while making a mistake, effects such as squeaking up the calf portion can be obtained.

Further, the air hose 29 inserted through each rotating shaft 17 is connected to the outer and inner airbags 40a and 40b disposed in the adjacent leg holding grooves 10 so that the inner diameter of the rotating shaft 17 is increased. Therefore, the entire air supply / exhaust structure of the ottoman 6 can be compactly assembled.

Further, it is preferable to provide a rotation restricting portion 30 that restricts the rotation of the ottoman 6 within a predetermined angle with respect to the support arm 19. By restricting the rotation range of the ottoman 6 in this way, the air hose 29 is rotated by the rotation of the ottoman 6. Is prevented from twisting and causing damage.

  The massage chair of the present invention has an effect that the ottoman provided with the treatment airbag can be rotated without causing the air hose for supplying and exhausting air to the airbag to be disconnected or damaged.

  Hereinafter, the present invention will be described based on embodiments shown in the accompanying drawings. FIG. 2 is a perspective view of an example of a massage chair according to an embodiment of the present invention. As shown in the figure, the massage chair of this example is mainly composed of a chair body 1 and an ottoman 6 connected to the chair body 1. Is configured. The chair body 1 includes a seat 2 on which the user sits, a backrest 3 on which the user sitting on the seat 2 leans his back, and a seat 2 on which the user is seated. A massage mechanism (not shown), which is formed by an armrest portion 4 on which a person puts his arm and a support leg portion 5 for supporting the portions 2, 3, 4 upward, is mainly built in the backrest portion 3. ), Various massages such as squeezing and striking are applied to the back of the user who is seated. In addition, since the front-rear direction used in the text is based on a user who is seated on the seat 2, the rear side is the side where the backrest 3 is located with respect to the seat 2, and the front side Is the side opposite to the side where the backrest 3 is located with respect to the seat 2.

  The ottoman 6 includes a holding surface 11 provided with a treatment holding portion 7 for performing massage while holding a user's leg portion, and a substantially flat leg placing surface 12 for taking a relaxed posture on the leg portion. On the front and back. The treatment holding portion 7 has a central wall portion 8 projecting from the central portion thereof, and outer wall portions 9 projecting from both outer portions sandwiching the central wall portion 8. Leg holding grooves 10 are respectively formed between the outer wall portions 9. For example, an air bag 40 as shown in FIG. 1 is disposed on each inner side wall of the central wall portion 8 and the outer wall portion 9 as a treatment means for legs, and the user sitting in the seat portion 2 himself / herself Legs are fitted into the leg holding grooves 10 of the treatment holding part 7 and are supplied to and exhausted from the airbag 40, whereby the legs held by the treatment holding part 7 by the expansion and contraction of the airbag 40. Massage is mainly given to the calf part. The treatment holding portion 7 provided on the holding surface 11 side is not limited to the structure in which the leg portion is fitted in the leg holding groove 10 provided with the airbag 40 as in this example, but for example, the airbag 40. A structure in which a leg portion is fitted in a cylindrical body (not shown) provided with a belt or a belt (not shown) provided with an airbag 40 may be wound around a user's leg portion. In any structure, the legs are massaged by supplying and exhausting air to the airbag 40.

  As shown in FIG. 5 and the like, the frame portion 24 provided inside the ottoman 6 is projected in an arch shape in the front-rear direction from the main frame 13 provided in a rectangular shape and the left and right ends of the main frame 13. The projecting frame 14 that forms the skeleton of the outer wall 9, the upper and lower ends of the main frame 13 are connected, the central frame 15 that is located behind the central wall 8, and the projecting points of the projecting frames 14 And a support frame 16 for connecting the left and right ends of the main frame 13 respectively. The support frames 16 on both the left and right sides of the main frame 13 extend in the left-right direction with a cylindrical rotating shaft 17 having both ends opened, and each rotating shaft 17 is supported by a support arm (described later) via a rotating bearing 18. 19 is rotatably connected to the front-rear direction (see FIG. 7). The support arm 19 is connected to the front end of the seat portion 2 of the chair body 1 via a swinging center portion 20 provided on the one end 19a side so as to be rotatable in the front-rear direction, and on the other end 19b side. The rotary bearing 18 is arranged in the open connection hole 21 and the rotary shaft 17 of the ottoman 6 is rotatably fitted to the rotary bearing 18, so that the ottoman 6 is chaired via a pair of left and right support arms 19. It is connected to the main body 1. In this example, the rotating shaft 17 is a reversal center portion 23, and the ottoman 6 is connected to the support arm 19 through the reversal center portion 23 so as to be reversible. In addition, 22 in a figure is a reinforcement pipe and is distribute | arranged so that the left and right support arms 19 may be connected above the ottoman 6.

  As described above, the pair of support arms 19 that support the ottoman 6 are rotatable in the front-rear direction with respect to the chair body 1 around the swing center 20 on the one end 19a side. The ottoman 6 connected to the end 19 b side is swingable in the front-rear direction via the support arm 19. 2A, 3, 4, and 9, the support arm 19 is positioned so as to be suspended from the front end of the chair body 1, and the ottoman 6 supported by the support arm 19 is held on its holding surface. 11 shows a case where 11 is positioned in a front-facing state. In this case, the user who is seated on the seat 2 of the chair main body 1 fits the calf portion into the treatment holding portion 7 of the ottoman 6 in a posture in which the user's lower leg portion is set up substantially vertically. The part massage can be performed as described above. However, if it is not necessary to perform the leg massage, the ottoman 6 is inverted around the inversion center part 23 as shown in FIG. What is necessary is just to make it the leg mounting surface 12 face the front.

  In the massage chair of this example, as shown in FIG. 9, the reversal center portion 23 is rearward of the swing center portion 20 by a distance D in the figure when the support arm 19 is suspended from the front end of the chair body 1. The inversion center portion 23 is moved closer to the leg mounting surface 12 side than the central portion between the front and rear ends of the ottoman 6 when the holding surface 11 (or the leg mounting surface 12) is directed forward. Than the distance D1 between the front end in the front-rear direction of the ottoman 6 on the holding surface 11 side (specifically, the tips of the wall portions 8 and 9 of the treatment holding portion 7) and the reversal center portion 23. 6 is provided so that the distance D2 between the front end in the front-rear direction on the side of the leg resting surface 12 (specifically, the center portion of the leg resting surface 12) and the inversion center portion 23 is smaller. Hold the user's leg securely when facing forward. When the leg mounting surface 12 side is directed forward (see the broken line in FIG. 9), the leg mounting surface 12 is used as the seat portion of the chair body 1. 2 It can be positioned so as not to protrude almost forward with respect to the front end, and a foot space for the user is secured to prevent discomfort due to contact with the ottoman 6. Moreover, even if a user's calf hits the ottoman 6, since the leg mounting surface 12 is substantially flat, giving discomfort is suppressed. When it is desired that the ottoman 6 be easily reversed, the reversal center portion 23 is the center between the front and rear ends of the ottoman 6 when the holding surface 11 (or the leg mounting surface 12) is directed forward. It may be provided in the part.

  Further, the reversal center portion 23 of the ottoman 6 is positioned at the central portion between the upper and lower ends of the ottoman 6 when the holding surface 11 (or the leg mounting surface 12) is directed forward, whereby the ottoman 6 is Even if a large space for inversion is not provided, the inversion can be performed without any problem. Further, it is possible to prevent the positions of the upper and lower ends of the ottoman 6 from being shifted after the reversal.

  In the massage chair of this example, as described above, the support arm 19 that supports the ottoman 6 is rotatably connected to the front end of the chair body 1 via the swinging center portion 20 provided on the one end 19a side. As a result, the support arm 19 is rotatable about the swinging center portion 20 so that the lower portion of the support arm 19 moves forward and upward from a state where it is suspended from the front end of the seat portion 2. Therefore, the ottoman 6 supported by the support arm 19 in the suspended state as shown in FIG. 8A and having the holding surface 11 facing forward rotates so that the lower part thereof moves forward and upward. As shown in FIGS. 8B and 8C, the holding surface 11 moves to a state where the holding surface 11 faces upward and upward. In this way, by allowing the lower part of the ottoman 6 to be lifted forward and upward, the user can perform a leg massage by fitting the leg part into the treatment holding part 7 with the tip of the foot projected forward. By appropriately selecting the swing position of the ottoman 6 and the tilt position of the backrest portion 3, massage in a posture suitable for the user can be performed.

  Further, in the case where the ottoman 6 is inverted as compared with that shown in FIG. 8, that is, when the support arm 19 is suspended from the front end of the seat 2 and the leg mounting surface 12 of the ottoman 6 faces forward. In other words, the calf portion of the ottoman 6 in a state where the lower portion of the ottoman 6 is lifted forward and upward by the rotation of the support arm 19 can be placed and relaxed. Although not particularly illustrated, it is preferable to incorporate, for example, a treatment vibration generating portion or a roller portion as a treatment means for the leg portion on the leg mounting surface 12 side of the ottoman 6, in this case. In this case, the user can perform a leg massage with such a posture that the leg can be moved relatively freely, such as placing a calf portion on the leg placing surface 12.

  The swing position of the ottoman 6 and the tilt position of the backrest 3 are changed by the link mechanism 25 arranged below the seat 2 being operated based on the user's controller operation. The link mechanism 25 is as shown in FIG. 3, and includes a lift unit 26 that changes the tilt position of the backrest 3 by an expansion / contraction operation, an ottoman link 27 that changes the swing position of the ottoman 6, and a backrest. 3 is provided with an interlocking link 28 for operating the ottoman link 27 in accordance with the change in the inclination position 3, and as shown in FIG. 8, when the inclination angle of the backrest portion 3 is increased (decreased), the ottoman 6 is interlocked with this. Is moved to a swing position in the upper front direction (lower rear direction).

  As shown in FIG. 1, the ottoman 6 of this example is provided as a treatment means for the legs so as to cover substantially the entire inner walls facing each other of the leg holding grooves 10 of the treatment holding section 7. The airbag 40 (hereinafter referred to as 40a) and a plurality of airbags 40 (hereinafter referred to as 40b) arranged inside each airbag 40a are provided. The inner airbags 40b are small-sized ones arranged in the length direction of the leg holding grooves 10, and the outer airbags 40a are inflated and contracted, and the inner airbags 40b are different in time from each other. By repeating the expansion and contraction, effects such as squeaking up the calf portion can be obtained. Supply and exhaust of air to the airbags 40a and 40b is performed via an air hose 29. The air hose 29 is connected at one end to the airbags 40a and 40b provided on the ottoman 6 side and at the other end. The side is inserted into the cylindrical rotary shaft 17 and pulled out to the outside of the ottoman 6 and connected to an air supply / exhaust portion (not shown) provided on the chair body 1 side. Although FIG. 1A shows only the air hose 29 inserted into one of the rotating shafts 17 provided on both the left and right sides of the ottoman 6, a similar air hose 29 may be inserted into the other rotating shaft 17. The air hose 29 inserted through each rotating shaft 17 is connected to the airbags 40a and 40b disposed in the leg holding grooves 10 on the adjacent side, thereby reducing the inner diameter of the rotating shaft 17. In addition, the entire air supply / exhaust structure of the ottoman 6 is compactly integrated.

  In addition, in the ottoman 6 of this example, as shown in FIG. 5 and FIG. 6, the semicircular arc-shaped rotation restricting portion 30 is fixed to the half of the outer end surface forming the ring shape of the rotating shaft 17 on both sides, The rotation stopper 31 mounted on the support arm 19 is set so as to come into contact with one end of the rotation restricting portion 30 when the ottoman 6 tries to rotate beyond a predetermined angle range of about 180 degrees. As a result, the rotation of the ottoman 6 relative to the support arm 19 is restricted within a predetermined range, and accordingly, the rotation of the ottoman 6 prevents the air hose 29 from being largely twisted and causing damage.

  The ottoman 6 can be turned upside down within the range of 180 degrees as described above. However, in this example, the rotation restricting portion 30 on the outer end surface forming the ring shape of the rotating shaft 17 is not fixed. A plurality of locking projections 32 are provided at a predetermined interval on the half of the side, and between the rotation regulating portion 30 and the locking projections 32 adjacent thereto, and between the adjacent locking projections 32. The locking groove 33 is formed in each, and the position of the rotation stopper 31 is released from the position where the ottoman 6 is locked by fitting with the locking groove 33 (hereinafter referred to as the locking position). By providing a release lever 34 that moves to a position (hereinafter referred to as a release position), the ottoman 6 can be locked at a plurality of angles within a range of 180 degrees where the ottoman 6 is reversed. The release lever 34 and the rotation stopper 31 are connected by a link mechanism 35 that pulls up (lowers) the rotation stopper 31 in conjunction with the release lever 34 being pulled forward and downward (upward and backward). The rotation stopper 31 is lifted to move from the locking position to the release position. Even at the release position, the rotation stopper 31 hits the rotation restricting portion 30 to reliably restrict the rotation of the ottoman 6. It has become.

  Therefore, in the state where the rotation stopper 31 is pulled up by the operation of the release lever 34, for example, the ottoman 6 is rotated by 90 degrees from the state shown in FIG. 5, and the holding surface 11 is provided with the swing center portion 20 of the support arm 19. When the rotation stopper 31 is pulled down so as to be positioned so as to face the one end 19a and to be fitted with the locking groove 33 corresponding to the desired angle, the user can move his / her foot tip portion from the sole side to the ottoman. It is possible to perform foot tip massage by being fitted into the 6 leg holding grooves 10. At this time, since the ottoman 6 is securely fixed at the angle of 90 degrees, a stable massage is performed.

  The rotation locking mechanism including the rotation restricting portion 30 and the rotation stopper 31 as described above is preferably provided on the rotation shaft 17 and the support arm 19 on both the left and right sides. By providing it on both sides, it is difficult to cause damage even when a large load is applied, such as sitting on the ottoman 6, as compared to the case where the rotation locking mechanism is provided only on one side. As for the rotation stopper 31, it is preferable that the rotation stoppers 31 on both sides move in the same direction in conjunction with the operation of the release lever 34 provided on one support arm 19. By providing a mechanism that interlocks with each other, the rotation operation of the ottoman 6 is facilitated.

  In the massage chair of this example as described above, the ottoman 6 is rotatably connected to the support arm 19 so that the ottoman 6 can be reversed when not in use to secure a foot space, or the ottoman 6 The foot can be massaged by rotating it 90 degrees, and even when the ottoman 6 is rotated in this way, the air hose 29 for the airbags 40a and 40b is detached from the connection location and is damaged. Therefore, the reliability is high.

The ottoman of the massage chair of an example in embodiment of this invention is shown, (a) is a front view, (b) is a side view, (c) is a top view. It is a perspective view of a massage chair same as the above, (a) shows an ottoman use state and (b) an ottoman accommodation state. It is a side view which shows the internal structure of the whole massage chair same as the above. It is a perspective view which shows the internal structure of the whole massage chair same as the above. It is a perspective view which shows the structure of the ottoman and support arm of a massage chair same as the above. It is a perspective view which shows the state which reversed the ottoman of FIG. It is sectional drawing which shows the connection part of the ottoman and support arm of a massage chair same as the above. It is explanatory drawing which shows the reclining structure of a massage chair same as the above, and has shown a mode that the angle of reclining becomes large in order of (a), (b), (c). It is explanatory drawing which shows the positional relationship of the inversion center part of an ottoman in a massage chair same as the above.

Explanation of symbols

1 Chair body 6 Ottoman 17 Rotating shaft 19 Support arm 29 Air hose 30 Rotation restricting part 40 Air bag

Claims (3)

A massage chair comprising an airbag that is fed and exhausted through an air hose and an ottoman that massages a leg of a user by expansion and contraction of the airbag is swingably connected to the chair body via a support arm In addition, the ottoman is connected to the support arm in a rotatable manner, and a rotation shaft that is the rotation center of the ottoman is provided in a cylindrical shape on both the left and right sides of the ottoman, and air hoses are respectively inserted into the rotation shafts on both sides. A massage comprising an outer airbag covering both opposing inner side walls of the provided leg holding grooves, and a plurality of inner airbags arranged inside the outer airbag. Chair. Outer and inner airbags are disposed in the left and right leg holding grooves provided in the ottoman, respectively, and the air hoses inserted through the rotating shafts are respectively disposed in the adjacent leg holding grooves. The massage chair according to claim 1, wherein the massage chair is connected to the massage chair. The massage chair according to claim 1 or 2, further comprising a rotation restricting portion that restricts the rotation of the ottoman within a predetermined angle with respect to the support arm.

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