WO2014006819A1

WO2014006819A1 - Air bag integrally molded from resin material, and massage chair provided with air bag

Info

Publication number: WO2014006819A1
Application number: PCT/JP2013/003510
Authority: WO
Inventors: 渡邊　知彦; 高谷　昭広; 中村　潤二; 吉美高橋
Original assignee: パナソニック株式会社
Priority date: 2012-07-06
Filing date: 2013-06-04
Publication date: 2014-01-09
Also published as: JP2014014437A

Abstract

An air bag (60) which is integrally molded from a resin material comprises a first air chamber (61) into which air is supplied and from which air is evacuated, a second air chamber (62) into which air is supplied and from which air is evacuated, and an interim portion (60C) which is formed between the first air chamber and the second air chamber. The interim portion (60C) further comprises a thin part (67), and a reinforcing part (68) which reinforces the thin part. The reinforcing part (68) is integrally formed with the thin part (67) and is thicker than the thin part (67).

Description

Air bag integrally molded from resin material and massage chair provided with this air bag

The present invention relates to an air bag integrally formed of a resin material and a massage chair including the air bag.

Patent Document 1 discloses an air bag having a first air chamber through which air is supplied and discharged, a second air chamber through which air is supplied and discharged, and an intermediate portion connecting the first air chamber and the second air chamber. Is described. The middle portion of the airbag has a thin portion.

JP 2012-70768 A

In the above-described air bag, for example, when the thin portion is loaded during assembly, the intermediate portion is deformed, and the first air chamber and the second air chamber may be displaced from desired positions.

An object of the present invention is to provide an airbag in which the strength of an intermediate portion of an airbag integrally molded with a resin material is improved, and a massage chair provided with the airbag.

The first aspect is an airbag that is integrally formed of a resin material. The air bag is formed between the first air chamber to which air is supplied and discharged, the second air chamber to which the air is supplied and discharged, and the first air chamber and the second air chamber. The intermediate portion includes a thin portion and a reinforcing portion that reinforces the thin portion, and the reinforcing portion is formed integrally with the thin portion and is thicker than the thin portion.

In one embodiment, the intermediate portion further includes a first supply port, a second supply port, and a first end extending toward the second air chamber, the first air chamber and the first supply port. Including a first conduit portion communicating with the first air chamber, a first end portion extending toward the first air chamber, and a second conduit portion communicating with the second air chamber and the second supply port, The thin portion includes an intermediate thin portion provided between the first end portion of the first conduit portion and the first end portion of the second conduit portion, and the reinforcing portion is formed of the intermediate thin portion. It is preferable that at least one of the upper side and the lower side extends in the longitudinal direction of the first pipe line part and the second pipe line part.

In one embodiment, the reinforcing portion is disposed in parallel with the first reinforcing portion, the first reinforcing portion extending in the longitudinal direction of the first and second conduit portions, and the first and second conduit portions. It is preferable that the said 1st and 2nd pipe line part is arrange | positioned between the said 1st reinforcement part and the said 2nd reinforcement part.

In one embodiment, it is preferable that the first end portion of the first conduit portion and the first end portion of the second conduit portion are located between the first reinforcement portion and the second reinforcement portion. .

In one embodiment, the first conduit portion includes a second end portion connected to the first air chamber, and the second conduit portion is a second end portion connected to the second air chamber. The reinforcing portion extends from the second end of the first conduit portion to the second end of the second conduit portion in the longitudinal direction of the first and second conduit portions, The length of the reinforcing portion in the longitudinal direction is preferably shorter than the distance from the second end portion of the first conduit portion to the second end portion of the second conduit portion.

In one embodiment, the first and second conduit portions extend obliquely with respect to the longitudinal direction of the first and second conduit portions, and the reinforcing portion has a substantially triangular shape. preferable.

The second aspect is an airbag that is integrally formed of a resin material and that can be folded along a folding axis. The air bag is formed between the first air chamber to which air is supplied and discharged, the second air chamber to which the air is supplied and discharged, and the first air chamber and the second air chamber. The intermediate portion includes a first supply port, a second supply port, and an end extending toward the second air chamber, and communicates the first air chamber and the first supply port. A first conduit portion; an end portion extending toward the first air chamber; a second conduit portion communicating with the second air chamber and the second supply port; and an end of the first conduit portion And a thin portion including an intermediate thin portion that extends in a direction inclined with respect to the bending axis.

The third aspect is a massage chair. The massage chair includes an ottoman and the airbag according to the first or second aspect, and the ottoman has two groove portions for fitting the right leg and the left leg, respectively. A side surface and an outer surface facing the inner surface, wherein one of the first air chamber and the second air chamber is disposed on one of the inner surface and the outer surface, and on the other of the inner surface and the outer surface The other of the first air chamber and the second air chamber is disposed.

In one embodiment, the ottoman includes a sole support portion that supports a sole, the sole support portion includes a treatment protrusion that protrudes toward the sole, and the airbag includes the first airbag. It is preferable that the sole is moved to the inner surface side or the outer surface side when the air chamber or the second air chamber expands.

In one embodiment, the ottoman includes a sole support portion that supports a sole, and the sole support portion includes a sole support surface and a heating wire disposed on the sole support surface. The heat ray includes a first portion extending in a first direction from the inner surface to the outer surface, and a second portion extending in a second direction orthogonal to the first direction, and the length of the first portion is the It is preferably longer than the length of the second part.

According to the present invention, it is possible to increase the strength of an intermediate portion of an airbag that is integrally formed of a resin material and provided in a massage chair or the like.

The perspective view which shows the whole structure of the massage machine of 1st Embodiment. The front view which shows the whole ottoman structure of 1st Embodiment. The front view which shows the whole structure of the state which is not bent in the upper massage part of 1st Embodiment. Sectional drawing which follows the Z4-Z4 line | wire of FIG. The top view which shows the structure of the sole support part of 1st Embodiment. The front view which shows the whole structure of the state which is not bent in the upper massage part of 2nd Embodiment. The front view which shows the whole structure of the state which is not bent in the upper massage part of a modification.

(First embodiment)
As shown in FIG. 1, the massage chair 1 includes a main body 10, a seat portion 11, a backrest 12, an armrest 13, an ottoman 20, and a supply device 80.

The ottoman 20 includes a leg support part 30 and a foot support part 70. The leg support part 30 is rotatably attached to the seat part 11. The foot support 70 is attached to the leg support 30 so as to be rotatable. The state of the ottoman 20 is changed between the reclining state and the sole support state according to the rotation of the leg support unit 30 and the sole support unit 70.

In the reclining state, the leg support surface 34 of the leg support 30 and the sole support surface 71 of the foot support 70 are parallel. In the reclining state, the leg support part 30 supports the upper leg from below, and the sole support part 70 supports the lower leg from below.

In the sole support state, the leg support surface 34 of the leg support portion 30 and the foot support surface 71 of the foot support portion 70 are substantially orthogonal (see FIG. 2). In the sole support state, the leg support unit 30 supports the back of the upper thigh, and the sole support unit 70 supports the sole from below.

The structure of the ottoman 20 will be described in detail with reference to FIG. Hereinafter, in the sole support state, the vertical direction of the ottoman 20 is the height direction, the front-back direction of the ottoman 20 is the depth direction, and the left-right direction of the ottoman 20 is the width direction. In FIG. 2, a connecting portion between the leg support 30 and the foot support 70 is omitted.

The leg support part 30 includes two groove parts 31 for fitting the right leg and the left leg, respectively. Each groove portion 31 includes an inner side surface 32, an outer side surface 33, a leg back support surface 34, a leg back massage portion 40, an upper massage portion 50, and a lower massage portion 60. In addition, about the groove part 31 which fits a right leg, an inner side respond | corresponds to the left side, and an outer side respond | corresponds to the right side. Moreover, about the groove part 31 corresponding to a left leg, an inner side respond | corresponds to the right side and an outer side respond | corresponds to the left side. The lower massage part 60 is an example of an airbag.

The leg back massage part 40 is arranged behind the upper massage part 50 and the lower massage part 60.

The back leg massage part 40 includes a back side air chamber 41 and a supply port 42. The back side air chamber 41 expands and contracts in response to supply and discharge of air from the supply port 42. The supply port 42 connects the back side air chamber 41 and the supply device 80 (see FIG. 1) to each other. The leg sole massage unit 40 is disposed on the leg sole support surface 34.

The upper massage part 50 includes an inner air chamber 51, an outer air chamber 52, two communication parts 53, and a supply port 54. The inner air chamber 51 and the outer air chamber 52 expand and contract in response to the supply and discharge of air from the supply port 54.

The two communication portions 53 are arranged in the height direction between the inner air chamber 51 and the outer air chamber 52. Each communication portion 53 communicates the inner air chamber 51 and the outer air chamber 52 with each other. The supply port 54 connects the upper communication portion 53 and the supply device 80 (see FIG. 1) to each other. The inner air chamber 51 is disposed on the inner side surface 32. The outer air chamber 52 is disposed on the outer surface 33. The communication portion 53 is disposed on the leg back support surface 34.

The upper massage part 50 can be bent at the boundary between the inner air chamber 51 and the communication part 53 and at the boundary between the outer air chamber 52 and the communication part 53. That is, the upper massage part 50 is disposed on the leg support part 30 in a state of being bent along the inner side surface 32, the leg back support surface 34, and the outer side surface 33.

The lower massage part 60 is arranged below the upper massage part 50.

The lower massage part 60 includes a first part 60A, a second part 60B, and an intermediate part 60C. The first portion 60A and the second portion 60B are connected to each other by an intermediate portion 60C.

The first portion 60A includes a first air chamber 61. The second part 60 B includes a second air chamber 62. The intermediate portion 60 C includes a first pipeline portion 63, a first supply port 64, a second pipeline portion 65, a second supply port 66, a thin portion 67, a reinforcement portion 68, and an auxiliary reinforcement portion 69. The reinforcing part 68 is an example of a first reinforcing part, and the auxiliary reinforcing part 69 is an example of a second reinforcing part.

The first air chamber 61 expands and contracts in response to supply and discharge of air from the first supply port 64. The second air chamber 62 expands and contracts in response to air supply and discharge from the second supply port 66.

The first portion 60A is disposed on the inner side surface 32. The second portion 60 B is disposed on the outer surface 33. The intermediate portion 60 C is disposed on the leg back support surface 34.

The lower massage part 60 can be bent at the boundary between the first part 60A and the intermediate part 60C and at the boundary between the second part 60B and the intermediate part 60C. That is, the lower massage part 60 is disposed on the leg support part 30 in a state of being bent along the inner side surface 32, the leg back support surface 34, and the outer side surface 33.

The structure of the lower massage part 60 will be described in detail with reference to FIG. In addition, FIG. 3 has shown the state which is not bending the lower massage part 60 of FIG.

The first duct portion 63 has a distal end portion (first end portion) 63A extending toward the second air chamber 62 and a base end portion (second end portion) 63B connected to the first air chamber 61. The first duct portion 63 extends from the first air chamber 61 toward the second air chamber 62. The tip portion 63A is formed closer to the first air chamber 61 than the center of the intermediate portion 60C. The 1st pipe line part 63 connects the 1st air chamber 61 and the 1st supply port 64 formed in 63 A of front-end | tip parts. The 1st supply port 64 connects the 1st pipe line part 63 and the supply apparatus 80 (refer FIG. 1) mutually.

The second duct portion 65 has a distal end portion (first end portion) 65A extending toward the first air chamber 61 and a base end portion (second end portion) 65B connected to the second air chamber 62. The second duct portion 65 extends from the second air chamber 62 toward the first air chamber 61. The tip 65A is formed closer to the first air chamber 61 than the center of the intermediate portion 60C. That is, the distal end portion 63A of the first conduit portion 63 and the end portion 65A of the second conduit portion 65 are disposed at asymmetric positions with respect to the center of the intermediate portion 60C. The second duct portion 65 communicates the second air chamber 62 and the second supply port 66 formed at the tip portion 65A. The 2nd supply port 66 connects the 2nd pipe line part 65 and the supply apparatus 80 (refer FIG. 1) mutually.

The longitudinal direction of the first pipeline part 63 and the second pipeline part 65 is parallel to the width direction. Moreover, the 1st pipe line part 63 and the 2nd pipe line part 65 are formed in the same position in a height direction.

The thin portion 67 includes an intermediate thin portion 67A, an upper thin portion 67B, and a lower thin portion 67C. The upper thin part 67 B is formed above the first pipe part 63 and the second pipe part 65. The lower thin portion 67C is formed below the first conduit portion 63 and the second conduit portion 65. The intermediate thin portion 67A is formed between the tip portion 63A and the tip portion 65A.

In the lower thin portion 67C, an attachment hole 67D is formed below the first conduit portion 63 and below the second conduit portion 65. The lower massage part 60 is attached to the leg support part 30 by a screw 35 (see FIG. 2) inserted into the attachment hole 67D.

The reinforcing portion 68 is formed in the upper thin portion 67B. The reinforcing portion 68 extends along the longitudinal direction of the first conduit portion 63 and the second conduit portion 65. The reinforcing portion 68 has a first end portion 68 A that extends toward the first air chamber 61. The first end portion 68 A is located in the vicinity of the base end portion 63 B of the first conduit portion 63. Preferably, the first end portion 68A is located closer to the second air chamber 62 than the base end portion 63B. The reinforcing portion 68 has a second end portion 68 B extending toward the second air chamber 62. The second end portion 68B is located in the vicinity of the base end portion 65B of the second conduit portion 65. Preferably, the second end portion 68B is located closer to the first air chamber 61 than the base end portion 65B. The reinforcing portion 68 is not in contact with the first air chamber 61, the second air chamber 62, the first conduit portion 63, and the second conduit portion 65.

The auxiliary reinforcing portion 69 includes a first auxiliary reinforcing portion 69A, a second auxiliary reinforcing portion 69B, and a third auxiliary reinforcing portion 69C.

The first auxiliary reinforcing portion 69A is formed below the first conduit portion 63 in the lower thin portion 67C. The length in the width direction of the first auxiliary reinforcing portion 69 A is shorter than the length in the width direction of the first pipeline portion 63.

The second auxiliary reinforcing portion 69B is formed below the second conduit portion 65 in the lower thin portion 67C. The length in the width direction of the second auxiliary reinforcing portion 69 B is shorter than the length in the width direction of the second pipe portion 65.

The third auxiliary reinforcing portion 69C is formed below the intermediate thin portion 67A in the lower thin portion 67C. The length in the width direction of the third auxiliary reinforcing portion 69C is shorter than the length in the width direction of the lower thin portion 67C.

As shown in FIG. 4, the thickness HB of the reinforcing portion 68 is thicker than the thickness HA of the thin portion 67 (67A, 67B, 67C). The thickness HC of the auxiliary reinforcing portion 69 (69A, 69B, 69C) is thicker than the thickness HA of the thin portion 67. Further, the reinforcing portion thickness HB is thicker than the auxiliary reinforcing portion thickness HC.

The air supply control to the lower massage part 60 will be described.

Air is supplied to and discharged from the first air chamber 61 of the lower massage unit 60 on the right side and the first air chamber 61 of the lower massage unit 60 on the left side by the supply device 80 (see FIG. 1) through the same supply system. Done.

The supply device 80 (see FIG. 1) supplies air to the second air chamber 62 of the left and right lower massage parts 60 and discharges air from the second air chamber 62 through the same supply system.

Therefore, the first air chambers 61 of the left and right lower massage parts 60 expand and contract simultaneously. In addition, the second air chambers 62 of the left and right lower massage parts 60 expand and contract simultaneously.

The manufacturing method of the lower massage part 60 is demonstrated.

The lower massage part 60 is formed of a resin material such as low density polyethylene. The lower massage part 60 is integrally formed of a resin material.

The lower massage part 60 is formed by blow molding. Specifically, the lower massage unit 60 is manufactured by sandwiching a cylindrical film with a mold, sending compressed air into the film, and pressing the film against the mold. The reinforcing portion 68 and the auxiliary reinforcing portion 69 are formed by the resin of the film accumulating in the resin pool portion formed in the mold. As a result, the thickness HA of the thin portion 67 is equal to or less than the thickness of two films stacked. The thickness HB of the reinforcing portion 68 and the thickness HC of the auxiliary reinforcing portion 69 are larger than the thickness of two stacked films. In addition, the first air chamber 61, the second air chamber 62, the first conduit portion 63, the first supply port 64, the second conduit portion 65, and the second supply port 66 allow air to flow. Formed. The thin portion 67, the reinforcing portion 68, and the auxiliary reinforcing portion 69 are formed as portions that block air circulation.

The operation of the lower massage part 60 will be described.

In the lower massage part 60, compared with the boundary between the first part 60A and the intermediate part 60C and the boundary between the second part 60B and the intermediate part 60C, the load on the intermediate thin part 67A is likely to be applied. For this reason, when the lower massage part 60 does not have the reinforcement part 68 and the auxiliary reinforcement part 69, the intermediate | middle thin part 67A of the lower massage part 60 bent along the shape of the groove part 31 is 1st part. It is easy to bend in the direction in which 60A and the second portion 60B approach.

According to the present embodiment, the lower massage portion 60 includes the reinforcing portion 68 and the third auxiliary reinforcing portion 69C that are thicker than the intermediate thin portion 67A. Therefore, the intermediate thin portion 67A includes the first portion 60A and the second portion 60B. It is hard to bend in the direction of approach.

In addition, since the communication part 53 is continuing from the inner side air chamber 51 to the outer side air chamber 52 in the upper massage part 50, the part between the inner side air chamber 51 and the outer side air chamber 52 is comparatively hard to bend.

Referring to FIG. 5, the structure of the sole support part 70 will be described.

The sole support unit 70 includes a right sole support surface 71 that supports the right sole F, a left sole support surface 71 that supports the left sole F, a sole movement mechanism 72, a treatment protrusion 73, And heating wire 74. In the foot support surface 71, an intrusion hole 71A is formed at a position where the center portion of the foot F is disposed. In FIG. 5, a cover that covers the heating wire 74 and the treatment protrusion 73 is omitted.

The treatment projection 73 can protrude from the intrusion hole 71A and can be buried below the intrusion hole 71A. Although not shown, the foot support portion 70 includes a protrusion mechanism for moving the treatment protrusion 73 upward and downward below the treatment protrusion 73.

The heating wire 74 is disposed on each sole support surface 71. The heating wire 74 includes a width portion 75 along the width direction and a depth portion 76 along the depth direction. When the width portion 75 and the depth portion 76 are connected to each other, the heating wire 74 has a meandering shape. The length of the width portion 75 is longer than the length of the depth portion 76. In addition, the total length of the width portion 75 is longer than the total length of the depth portion 76.

The sole movement mechanism 72 is disposed inside and outside each sole support surface 71. Each sole moving mechanism 72 expands and contracts by supplying air and discharging air by the supply device 80. The inner sole movement mechanism 72 and the outer sole movement mechanism 72 are alternately expanded and contracted to move the sole F inward and outward.

The expansion and contraction of the sole movement mechanism 72 is executed simultaneously with the expansion and contraction of the first air chamber 61 and the second air chamber 62 of the lower massage part 60. For example, when the first air chamber 61 expands and the second air chamber 62 contracts, the inner foot movement mechanism 72 expands and the outer foot movement mechanism 72 contracts. Further, when the first air chamber 61 contracts and the second air chamber 62 expands, the inner sole movement mechanism 72 contracts and the outer sole movement mechanism 72 expands. Thereby, the sole F becomes easy to move inside and outside.

The operation of the sole support part 70 will be described.

The sole movement mechanism 72 alternately moves the sole F toward the inside and the outside. For this reason, the sole F moves on the treatment protrusion 73. Thereby, the treatment protrusion 73 gives stimulation to a plurality of portions of the sole F.

In the heating wire 74, the length of the width portion 75 is longer than the length of the depth portion 76. The width portion 75 is disposed along the moving direction of the sole F, and the depth portion 76 is disposed along a direction orthogonal to the moving direction of the sole F. In this configuration, as compared with the configuration in which the length of the depth portion 76 is longer than the length of the width portion 75, the drag of the heating wire 74 when the sole F moves can be reduced.

The massage chair 1 of the first embodiment has the following advantages.

(1) The lower massage part 60 includes a reinforcing part 68 formed integrally with the thin part 67. The reinforcing portion 68 can increase the strength of the intermediate portion 60 C having the thin portion 67. Thereby, when attaching the lower massage part 60 to the leg support part 30, or after attaching, it can suppress that the 1st air chamber 61 and the 2nd air chamber 62 shift | deviate from a desired position by deform | transforming the intermediate part 60C. . Moreover, the reinforcement part 68 is formed by the lump when the lower massage part 60 is manufactured. For this reason, compared with the structure which reinforces the thin part 67 with the separate reinforcement part 68, a number of parts can be decreased.

(2) The lower massage part 60 includes a first air chamber 61 and a second air chamber 62. For this reason, compared with the case where the two lower massage parts which have one air chamber are each arrange | positioned in the inner surface 32 and the outer surface 33, the location which attaches the lower massage part 60 to the leg support part 30 using the screw 35 is provided. Can be reduced. Thereby, it becomes possible to attach the lower massage part 60 also to a smaller place.

(3) The reinforcing portion 68 is formed above the intermediate thin portion 67A, and extends in the longitudinal direction of the first conduit portion 63 and the second conduit portion 65. For this reason, it becomes difficult to apply a load to the intermediate thin portion 67A. Thereby, the intermediate thin portion 67A is reinforced, and deformation of the intermediate portion 60C is suppressed.

(4) The reinforcing portion 68 is formed almost entirely along the longitudinal direction of the first conduit portion 63 and the second conduit portion 65. For this reason, the lower massage part 60 is unlikely to bend at the intermediate part of the first pipe part 63 and the intermediate part of the second pipe part 65. On the other hand, since the reinforcing portion 68 is not formed above the base end portion 63B of the first conduit portion 63 and above the base end portion 65B of the second conduit portion 65, the

base end portions

63B and 65B are bent. Cheap. For this reason, the lower massage part 60 can be easily bent along the groove part 31.

(5) The sole support part 70 includes a treatment protrusion 73. For this reason, when the sole support part 70 moves the sole F inward and outward in cooperation with the lower massage part 60, the sole support part 70 has the treatment protrusions 73 at a plurality of locations on the sole F. Stimulation can be applied.

(6) The sole support portion 70 includes a heating wire 74 formed in a meandering manner by a width portion 75 and a depth portion 76 shorter than the width portion 75. For this reason, compared with the case where the length of the width | variety part 75 is shorter than the length of the depth part 76, the drag of the heating wire 74 when the lower massage part 60 moves the sole F inside and outside is small. That is, the load applied to the heating wire 74 is reduced by the movement of the sole F.

(7) The lower massage part 60 includes an auxiliary reinforcing part 69. The thickness HC of the auxiliary reinforcing portion 69 is thicker than the thickness HA of the lower thin portion 67C (that is, the thin portion 67). Accordingly, the auxiliary reinforcing portion 69 reinforces the lower thin portion 67C. Thereby, a deformation | transformation of 67 C of lower thin parts can be suppressed.

(8) The lower massage part 60 includes a third auxiliary reinforcing part 69C. Since the third auxiliary reinforcing portion 69C is disposed below the intermediate thin portion 67A, the load on the intermediate thin portion 67A can be reduced.

(Second Embodiment)
Next, the configuration of the second embodiment will be described with reference to FIG. In the massage chair 1 of the second embodiment, the lower massage part 60 provided in the massage chair 1 of the first embodiment is changed to the lower massage part 160. The lower massage part 160 includes an intermediate part 160C instead of the intermediate part 60C of the lower massage part 60. In addition, about the part which is common in 1st Embodiment, the same code | symbol is attached | subjected and description is abbreviate | omitted.

Referring to FIG. 6, the structure of the lower massage part 160 will be described in detail. 6 shows a state where the lower massage part 60 is not bent.

The lower massage part 60 includes a first part 60A, a second part 60B, and an intermediate part 160C. The first portion 60A and the second portion 60B are connected to each other by an intermediate portion 160C.

The intermediate portion 160 C includes a first conduit portion 163, a first supply port 64, a second conduit portion 165, a second supply port 66, a thin portion 167, and an auxiliary reinforcing portion 69.

1st part 60A is arrange | positioned at the inner surface 32 (refer FIG. 2) of the groove part 31. FIG. The second portion 60B is disposed on the outer surface 33 (see FIG. 2) of the groove 31. The intermediate portion 160 C is disposed on the leg back support surface 34 (see FIG. 2) of the groove portion 31.

The lower massage part 60 can be bent along the axis in the height direction at the boundary between the first part 60A and the intermediate part 160C and the boundary between the second part 60B and the intermediate part 160C. That is, the lower massage part 60 is disposed on the leg support part 30 in a state of being bent along the inner side surface 32, the leg back support surface 34, and the outer side surface 33. The axis in the height direction corresponds to the bending axis.

The first pipe line portion 163 has a distal end portion (first end portion) 163A extending toward the second air chamber 62 and a base end portion (second end portion) 63B connected to the first air chamber 61. The first duct portion 163 extends from the first air chamber 61 toward the second air chamber 62. The distal end portion 163A is formed closer to the second air chamber 62 than the center of the intermediate portion 160C.

The second pipe line portion 165 has a distal end portion (first end portion) 165A extending toward the first air chamber 61 and a base end portion (second end portion) 65B connected to the second air chamber 62. The second duct portion 165 extends from the second air chamber 62 toward the first air chamber 61. The tip 165A is formed closer to the second air chamber 62 than the center of the intermediate portion 160C.

The tip portion 163A of the first pipe line portion 163 is inclined so as to extend to the second air chamber 62 from the lower side toward the upper side. That is, the tip 163A is inclined with respect to the height direction. The leading end portion 165A of the first pipe line portion 165 is inclined so as to extend to the first air chamber 61 from the top to the bottom. That is, the tip 165A is also inclined with respect to the height direction.

The longitudinal direction of the 1st pipe line part 163 and the 2nd pipe line part 165 is parallel to the width direction. Moreover, the upper end of the 1st pipe line part 163 and the upper end of the 2nd pipe line part 165 are formed in the same position in a height direction. Moreover, the lower end of the 1st pipe line part 163 and the lower end of the 2nd pipe line part 165 are formed in the same position in a height direction. The tip portion 163A and the tip portion 165A are parallel to each other. The upper end of the tip portion 163A is positioned closer to the second air chamber 62 than the lower end of the tip portion 165A.

The thin part 167 includes an intermediate thin part 167A, an upper thin part 67B, and a lower thin part 67C. The intermediate thin portion 167A is formed between the tip portion 163A and the tip portion 165A. Since the distal end portion 163A and the distal end portion 165A are inclined with respect to the height direction and are parallel to each other, the intermediate thin portion 167A extends in a direction inclined with respect to the height direction.

The massage chair 1 of the second embodiment has the following advantages in addition to the advantages (2) and (5) to (8) of the first embodiment.

(9) The intermediate thin portion 167A is inclined with respect to the bending axis (height direction) of the lower massage portion 160. For this reason, the intermediate portion 160C is difficult to bend along the axis in the height direction. Further, the upper end of the tip portion 163A is located closer to the second air chamber 62 than the lower end of the tip portion 165A. Therefore, in the cross section of the lower massage portion 160 along the axis in the height direction, the intermediate portion 160C has at least one of the first conduit portion 163 and the second conduit portion 165. For this reason, the intermediate portion 160C is difficult to bend along the axis in the height direction. For this reason, when bending the lower massage part 60 or after bending, it is suppressed that the intermediate part 160C bends along the axis line of a height direction.

The present invention includes embodiments other than the above embodiment. Hereinafter, other embodiments of the present invention will be described as modifications of the above embodiments. It should be noted that the following modifications may be combined with each other, or the modification and the above embodiment.

The intermediate part 60C of the lower massage part 60 of the first embodiment has a rectangular reinforcing part 68 whose longitudinal direction is parallel to the width direction (see FIG. 3). On the other hand, an intermediate portion 260C of the lower massage portion 260 of the modified example shown in FIG. The height dimension at the center in the width direction of the reinforcing part 268 is larger than the height dimension of the end part in the width direction of the reinforcing part 268. In the intermediate portion 260 C, the upper end of the first duct portion 263 is inclined downward as it goes from the first air chamber 61 to the second air chamber 62. Similarly, the upper end of the second pipe section 265 is inclined downward from the second air chamber 62 toward the first air chamber 61. For this reason, the lower end of the upper thin part 267B is inclined downward from the both ends in the width direction toward the center. That is, the upper thin part 267B is formed in a triangular frame shape. In other words, the reinforcing portion 268 is formed in a substantially triangular shape. The lower end of the reinforcing portion 268 protrudes downward toward the center in the width direction. The reinforcing portion 268 extends from the upper thin portion 267B to the lower thin portion 267C via the intermediate thin portion 267A at a position between the distal end portion 263A of the first conduit portion 263 and the distal end portion 265A of the second conduit portion 265. It extends. The intermediate portion 260C does not have the third auxiliary reinforcing portion 69C.

In this modification, since the height of the reinforcing portion 268 is large at the center and near the center in the width direction of the intermediate portion 260C, the section modulus at the center and near the center of the intermediate portion 260C is large. For this reason, the intermediate portion 260C is more difficult to bend.

Further, the upper thin portion 267B includes a first portion that is located between the reinforcing portion 268 and the first conduit portion 263 and is inclined with respect to the height direction. The first portion of the upper thin portion 267B is located between the reinforcing portion 268 and the distal end portion 263A of the first conduit portion 263, and is continuous with the first portion of the intermediate thin portion 267A that is parallel to the height direction. The upper thin portion 267B includes a second portion that is located between the reinforcing portion 268 and the second conduit portion 265 and is inclined with respect to the height direction. The second portion of the upper thin portion 267B is located between the reinforcing portion 268 and the distal end portion 265A of the second conduit portion 265, and is continuous with the second portion of the intermediate thin portion 267A parallel to the height direction. That is, the thin portion 267 includes a bent portion that is continuous and bent from the upper end to the lower end of the intermediate portion 260C. For this reason, the intermediate portion 260C is more difficult to bend.

In the first embodiment, the first end portion 68A of the reinforcing portion 68 is located near the first air chamber 61, but may be located near the center of the intermediate portion 60C.

In the first embodiment, the second end portion 68B of the reinforcing portion 68 is located near the second air chamber 62, but may be located near the center of the intermediate portion 60C.

In the first embodiment, the reinforcing portion 68 is formed in the upper thin portion 67B, but may be formed in the lower thin portion 67C.

In the second embodiment, the lower massage portion 160 does not have the reinforcing portion 68 (see FIG. 3), but may have the reinforcing portion 68.

In the second embodiment, the intermediate thin portion 167A is inclined so as to extend from the second air chamber 62 to the first air chamber 61 as it goes downward from above, but from the first air chamber 61 as it goes downward from above. You may incline so that the 2nd air chamber 62 may be extended.

In the second embodiment, the lower massage part 160 is bent along the axis in the height direction, but is bent along an axis that is inclined with respect to the axis in the height direction (hereinafter referred to as “inclined axis”). Also good. In this case, the tilt axis corresponds to the bending axis. For example, the inclination axis is inclined so as to extend from the second air chamber 62 to the first air chamber 61 from the upper side to the lower side. When the lower massage portion 160 is bent along the tilt axis, the intermediate thin portion 167A may have a shape extending in parallel to the height direction. Further, the intermediate thin portion 167A may have a shape extending in a direction inclined at an angle different from the inclination axis.

In the first and second embodiments, the lower massage parts 60 and 160 include the first auxiliary reinforcing part 69A, the second auxiliary reinforcing part 69B, and the third auxiliary reinforcing part 69C, but the first auxiliary reinforcing part 69A, At least one of the two auxiliary reinforcing portions 69B and the third auxiliary reinforcing portion 69C may be omitted.

In the first and second embodiments, the resin material of the lower massage portions 60 and 160 is low-density polyethylene, but other resin materials may be used. Further, the resin material of the lower massage parts 60 and 160 may be a thermoplastic resin other than polyethylene. That is, in the first embodiment, the thin portion 67 and the reinforcing portion 68 are integrally formed, and the first portion 60 A, the second portion 60 B, and the intermediate portion 60 C have a hardness that can be disposed along the groove portion 31. If it is the massage part 60, any resin material can also be used. In the second embodiment, any resin material may be used as long as it is a massaging portion 160 having a hardness capable of arranging the first portion 60A, the second portion 60B, and the intermediate portion 160C along the groove portion 31. You can also.

In the first and second embodiments, the leg support unit 30 includes the back massage unit 40 and the upper massage unit 50, but at least one of the back massage unit 40 and the upper massage unit 50 may be omitted. .

In the first and second embodiments, the width portion 75 of the heating wire 74 is longer than the depth portion 76, but may be shorter than the depth portion 76.

In the first and second embodiments, the heating wire 74 has a meandering shape in which the width portion 75 and the depth portion 76 are continuous, but may have other shapes.

In the first and second embodiments, the foot support 70 has the heating wire 74, but the heating wire 74 may be omitted.

In the first and second embodiments, the foot support 70 has the treatment protrusion 73, but the treatment protrusion 73 may be omitted.

In the first and second embodiments, the ottoman 20 includes the reclining state and the sole support state, but may have only one of the reclining state and the sole support state.

In the first and second embodiments, the ottoman 20 has the sole support portion 70, but the sole support portion 70 may be omitted.

In the first and second embodiments, the lower massage parts 60 and 160 are arranged on the leg support part 30, but may be arranged on the armrest 13 to massage the arm. Further, the lower massage parts 60 and 160 may be disposed on the seat part 11. In this case, the intermediate portions 60 C and 160 C of the lower massage portions 60 and 160 have dimensions corresponding to the width of the seat portion 11.

In the lower massage parts 60 and 160 of the first and second embodiments, the first air chamber 61 is disposed on the inner surface 32, the second air chamber 62 is disposed on the outer surface 33, and the

intermediate portions

60C and 160C are the soles of the legs. It is disposed on the support surface 34. Alternatively, the first air chamber 61 may be disposed on the outer surface 33, the second air chamber 62 may be disposed on the inner surface 32, and the intermediate portions 60 C and 160 C may be disposed on the leg back support surface 34.

In the first and second embodiments, the lower massage parts 60 and 160 are disposed below the upper massage part 50, but may be disposed above the upper massage part 50.

In the upper massage part 50 of the first and second embodiments, the inner air chamber 51 and the outer air chamber 52 communicate with each other through the communication part 53, but the inner air chamber 51 and the outer air chamber 52 may be independent. . In this case, the upper massage part 50 can also have the same configuration as the lower massage parts 60 and 160.

In the first and second embodiments, supply and discharge of air to the first air chamber 61 of the lower massage parts 60 and 160 on the right side and the first air chamber 61 of the lower massage parts 60 and 160 on the left side are the same supply. This is done by the supply device 80 via the system. Instead, supply and discharge of air to the first air chamber 61 of the right lower massage part 60, 160 and to the first air chamber 61 of the left lower massage part 60, 160 are performed via separate supply systems. It may be performed by the supply device 80.

In the first and second embodiments, the supply and discharge of air to the second air chamber 62 of the lower massage parts 60 and 160 on the right side and the second air chamber 62 of the lower massage parts 60 and 160 on the left side are the same supply. This is done by the supply device 80 via the system. Instead, the supply and discharge of air to the second air chamber 62 of the right lower massage part 60, 160 and the second air chamber 62 of the left lower massage part 60, 160 are performed via separate supply systems. It may be performed by the supply device 80.

In the first and second embodiments, the massage chair 1 includes the backrest 12 and the armrest 13, but at least one of the backrest and the armrest 13 may be omitted.

In the first and second embodiments, the lower massage parts 60 and 160 are applied to the massage chair 1. However, the resin includes a first air chamber in which air is supplied and discharged, a second air chamber in which air is supplied and discharged, and an intermediate portion formed between the first air chamber and the second air chamber, The lower massage parts 60 and 160 of the above-described embodiment or the lower massage part 260 of the above modification can be applied to any airbag as long as the airbag is integrally formed of a material.

Claims

An air bag integrally formed of a resin material,
A first air chamber through which air is supplied and discharged;
A second air chamber to which the air is supplied and discharged;
An intermediate portion formed between the first air chamber and the second air chamber;
The intermediate portion is
Thin part,
A reinforcing portion that reinforces the thin portion,
An airbag in which the reinforcing portion is formed integrally with the thin portion and is thicker than the thin portion.
The intermediate portion further includes
A first supply port;
A second supply port;
A first pipe portion including a first end extending toward the second air chamber and communicating the first air chamber and the first supply port;
Including a first end portion extending toward the first air chamber, and a second pipe portion communicating the second air chamber and the second supply port,
The thin portion includes an intermediate thin portion provided between a first end portion of the first conduit portion and a first end portion of the second conduit portion,
The airbag according to claim 1, wherein the reinforcing portion extends in a longitudinal direction of the first conduit portion and the second conduit portion in at least one of the upper and lower portions of the intermediate thin portion.
The reinforcing part is
A first reinforcing portion extending in a longitudinal direction of the first and second conduit portions;
A second reinforcing portion that is disposed in parallel with the first reinforcing portion and extends in a longitudinal direction of the first and second conduit portions;
The airbag according to claim 2, wherein the first and second conduit portions are arranged between the first reinforcement portion and the second reinforcement portion.
The air according to claim 3, wherein the first end portion of the first conduit portion and the first end portion of the second conduit portion are located between the first reinforcement portion and the second reinforcement portion. bag.
The first conduit portion includes a second end connected to the first air chamber,
The second conduit portion includes a second end connected to the second air chamber,
The reinforcing portion extends from the second end of the first conduit portion to the second end of the second conduit portion in the longitudinal direction of the first and second conduit portions, 3. The airbag according to claim 2, wherein a length in the longitudinal direction is shorter than a distance from a second end portion of the first conduit portion to a second end portion of the second conduit portion.
3. The air according to claim 2, wherein the first and second conduit portions extend obliquely with respect to the longitudinal direction of the first and second conduit portions, and the reinforcing portion has a substantially triangular shape. bag.
An air bag that is integrally formed of a resin material and can be bent along a bending axis,
A first air chamber through which air is supplied and discharged;
A second air chamber to which the air is supplied and discharged;
An intermediate portion formed between the first air chamber and the second air chamber;
The intermediate portion is
A first supply port;
A second supply port;
A first conduit portion including an end portion extending toward the second air chamber, and communicating the first air chamber and the first supply port;
A second pipe portion including an end portion extending toward the first air chamber, and communicating the second air chamber and the second supply port;
A thin portion including an intermediate thin portion provided between an end portion of the first conduit portion and an end portion of the second conduit portion and extending in a direction inclined with respect to the bending axis;
Including air bag.
A massage chair,
With ottoman,
An air bag according to claim 1 or 7,
The ottoman includes two grooves for fitting the right leg and the left leg,
Each of the grooves includes an inner surface and an outer surface facing the inner surface,
One of the first air chamber and the second air chamber is disposed on one of the inner surface and the outer surface,
A massage chair, wherein the other of the first air chamber and the second air chamber is disposed on the other of the inner surface and the outer surface.
The ottoman includes a sole support portion that supports the sole,
The sole support portion includes a treatment protrusion that protrudes toward the sole,
The massage chair according to claim 8, wherein the airbag moves the sole toward the inner side surface or the outer side surface when the first air chamber or the second air chamber is inflated.
The ottoman includes a sole support portion that supports the sole,
The sole support portion includes a sole support surface and a heating wire disposed on the sole support surface,
The heating wire includes a first portion extending in a first direction from the inner surface toward the outer surface, and a second portion extending in a second direction orthogonal to the first direction, and the length of the first portion. The massage chair according to claim 8, wherein is longer than a length of the second part.