Chair and composite chair

Abstract

To provide a chair and a composite chair capable of smoothly reclining a backrest part even when a distance between a wall of a room and a back surface of the backrest part is small when the chair and the composite chair are installed close to the wall of the room by providing a mechanism for reclining the backrest part and sliding a seat part forward.SOLUTION: A chair 1 includes: a seat portion 2 on which a user can sit; a backrest portion 3 provided in the rear part of the seat portion 2; a leg body 5 that supports the seat portion 2 and the backrest portion 3; a reclining mechanism 6 that lifts the backrest portion 3 upward and reclines the lifted backrest portion 3; a slide mechanism 7 that slides the backrest portion 3 and the seat portion 2 in the front-rear direction; and an interlocking mechanism 8 that interlocks the reclining mechanism 6 and the slide mechanism 7.SELECTED DRAWING: Figure 4

Description

Technical Field

[0001] The present invention relates to a chair and a combined chair that can reliably perform a reclining operation of a backrest even when installed near an indoor wall.

Background Art

[0002] Conventionally, many chair-type massage machines can recline the backrest in the front-rear direction. Such chair-type massage machines are disclosed in, for example, Patent Document 1. Patent Document 1 discloses a technique related to a stationary chair-type massage machine capable of reclining the backrest.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] The chair-type massage machine of Patent Document 1 does not need to take a large distance between the wall of the room and the back surface of the backrest, and can be installed so as to be reclinable even in a small space (in other words, a short distance). This chair-type massage machine of Patent Document 1 has a configuration in which, for example, by leaving a distance of about 10 to 20 cm between the wall of the room and the back surface of the backrest, the backrest can be tilted backward for adjustment.

[0005] However, due to various situations such as the size of the room, there may be cases where it is necessary to install the chair with almost no space between the back surface of the backrest and the wall of the room. For example, there may be cases where only a small distance of several centimeters can be left between the wall of the room and the back surface of the backrest. In this case, it has been found that the conventional chair-type massage machine cannot recline the backrest.

[0006] Therefore, in view of the above problems, the present invention provides a chair and a combined chair that can smoothly and reliably recline the backrest even when the distance between the wall of the room and the back surface of the backrest is small when installed near the wall of the room, by providing a mechanism for reclining the backrest and sliding the seat forward.

Means for Solving the Problems

[0007] In order to achieve the above object, the present invention has taken the following technical means.

[0008] The chair according to the present invention includes a seat portion on which a user can sit, a backrest portion provided at the rear of the seat portion, a leg portion that supports the seat portion and the backrest portion, a reclining mechanism that reclines the backrest portion, a slide mechanism that slides the backrest portion and the seat portion in the front-rear direction, and an interlocking mechanism that interlocks the reclining mechanism and the slide mechanism.

[0009] Preferably, the leg portion has a fixed frame installed on the floor surface and a movable frame on which the seat portion and the backrest portion are mounted and which is slidable in the front-rear direction with respect to the fixed frame. The movable frame supports the backrest frame so that the backrest portion can be reclined and mounts the seat portion. The movable frame is preferably slidable in the front-rear direction with respect to the fixed frame by the slide mechanism.

[0010] Preferably, the interlocking mechanism is a mechanism that interlocks the reclining operation of the backrest frame by the reclining mechanism and the sliding operation of the movable frame in the front-rear direction by the slide mechanism.

[0011] Preferably, the interlocking mechanism is configured to interlock the slide mechanism to slide the moving frame in the front-rear direction by using the driving force output from the lifting mechanism that constitutes the reclining mechanism and reclining the backrest portion.

[0012] Preferably, the interlocking mechanism includes a first shaft provided at the lower part of the backrest frame, a first guide rail provided on the fixed frame in an upwardly inclined state from the rear lower side to the front upper side, and a first slider portion attached to the first shaft and moving obliquely on the first guide rail. It is preferably configured to have.

[0013] Preferably, when the first slider moves on the first guide rail in an upwardly inclined state, the interlocking mechanism generates a force component facing forward or backward from the upward or downward movement of the backrest frame, transmits the generated force component facing forward or backward to the first shaft to which the first slider is attached, and is configured to move the moving frame forward or backward via the backrest frame.

[0014] Preferably, the reclining mechanism raises the backrest portion upward, and the reclining mechanism includes a guide plate provided on the seat portion and having a long groove formed in the vertical direction, and a guide body that is rotatably fitted into the long groove and guided along the long groove. It is preferable that the backrest frame and the moving frame are connected via the reclining mechanism.

[0015] Preferably, the reclining mechanism raises the backrest portion upward and reclines the raised backrest portion backward. The long groove has a shape in which the upper part curves backward, and the long groove includes a lower groove portion extending obliquely backward along the vertical direction, and an upper groove portion formed by connecting to the upper side of the lower groove portion and reclined further backward than the lower groove portion. A rack gear is provided in the long groove, and at least two or more guide bodies are provided above and below the long groove. One of the guide bodies is movable from the lower groove portion to the upper groove portion, and the other guide body may be provided with a pinion gear meshing with the rack gear and be movable in the lower groove portion.

[0016] Preferably, the slide mechanism may include a second shaft provided on the moving frame, a second guide rail provided on the fixed frame in the front-rear direction, and a second slider portion attached to the second shaft and moving the second guide rail in the front-rear direction.

[0017] Preferably, the slide mechanism may include a slide bar provided on the moving frame so as to be parallel to the second guide rail and sliding with the front-rear movement of the moving frame, and a guide groove provided on the fixed frame and guiding the slide bar in the front-rear direction.

[0018] Preferably, armrest portions are provided on the left and right sides of the seat portion, respectively, and the armrest portions may be configured to move in the front-rear direction together with the seat portion in conjunction with the reclining operation of the backrest portion.

[0019] Preferably, the armrest portions are respectively attached to the left and right sides of the moving frame and may move in the front-rear direction together with the moving frame.

[0020] Preferably, a massage mechanism for massaging the treatment part of the user may be built in the backrest portion and / or the seat portion.

[0021] The composite chair according to the present invention is characterized in that at least two or more of the chairs described above are connected in the left - right direction by sandwiching a connecting unit.

[0022] Preferably, in the connecting unit, side plates of the connecting unit are arranged to be slidable in the front - rear direction, and the side plates may be connected to the moving frame.

Advantages of the Invention

[0023] According to the chair and the composite chair of the present invention, by providing a mechanism for causing a reclining operation of the backrest portion and a sliding operation of the seat portion in the forward direction, when installed near the wall of a room, even when the distance between the wall of the room and the back surface of the backrest portion is small, the backrest portion can be reclined smoothly and reliably.

Brief Description of the Drawings

[0024]

Figure 1

Figure 2A

Figure 2B

Figure 2C

Figure 2D

Figure 3A

Figure 3B

Figure 3C

Figure 3D

Figure 4

Figure 5A

Figure 5B

Figure 6

Figure 7

Mode for Carrying Out the Invention

[0025] Hereinafter, embodiments of the chair according to the present invention will be described with reference to the drawings.

[0026] The embodiments described below are examples of embodying the present invention, and do not limit the configuration of the present invention with those specific examples. Also, regarding the drawings, for ease of viewing, some of the components are omitted or drawn using phantom lines or the like.

[0027] In the following description, the directions shown in the drawings are taken as the directions when explaining the chair 1 of the present invention. For example, with respect to the up-down, front-rear, left-right, etc. directions of the chair 1, they are as shown in FIGS. 1 to 7 and the like. In the side views of FIGS. 1, 3A to 3D, the up-down and front-rear are as shown in the drawings, but the front side in the direction penetrating the paper surface is taken as the right, and the back side in the direction penetrating the paper surface is taken as the left. This is consistent with the direction seen from the user sitting on the chair 1.

[0028] Regarding the chair 1 according to the present invention, in this embodiment, a chair-type massage machine 1 incorporating a massage mechanism (not shown) for massaging the treatment area of the user is taken as an example and described. The massage mechanism may be a mechanical one or a pressing massage machine using the expansion and contraction of an airbag.

[0029] Figs. 1 to 5B are views showing an outline of the chair-type massage machine 1 according to this embodiment.

[0030] As shown in Figs. 2A, 3A, etc., in the chair-type massage machine 1 (chair 1) of this embodiment, a state where the backrest portion 3 descends, the lower portion of the backrest portion 3 is located under the seat portion 2, and the seat portion 2 is located rearward is taken as the basic position and is called the "sofa mode".

[0031] Figs. 2B to 2C, 3B to 3C, etc. are views showing a state in which, in the chair-type massage machine 1 of this embodiment, the backrest portion 3 is projected upward from the sofa mode and the seat portion 2 is slid forward to switch to the reclining operation of the backrest portion 3.

[0032] As shown in Figs. 2D, 3D, etc., in the chair-type massage machine 1 of this embodiment, a state where the raised backrest portion 3 is inclined rearward and the seat portion 2 is slid further forward is taken as the reclining position and is called the "lounge mode".

[0033] Note that the chair-type massage machine 1 of this embodiment can be used in a comfort mode in a state where the backrest portion 3 is projected upward and the seat portion 2 is slid forward as shown in Figs. 2C, 3C, etc.

[0034] As shown in Figs. 1 to 3D, etc., the chair-type massage machine 1 of this embodiment has a seat portion 2 on which a user can sit, a backrest portion 3 provided at the rear of the seat portion 2, armrest portions 4 arranged on the left and right sides of the seat portion 2, and legs 5 for supporting the seat portion 2 and the backrest portion 3.

[0035] Furthermore, the chair-type massage machine 1 includes a reclining mechanism 6 that raises the backrest portion 3 and reclines the raised backrest portion 3, a slide mechanism 7 that slides the seat portion 2 (moving frame 11) in the front-rear direction, and an interlocking mechanism 8 that interlocks the reclining mechanism 6 and the slide mechanism 7.

[0036] Note that the chair-type massage machine 1 of the present embodiment has a massage mechanism (not shown) built into the backrest portion 3. This massage mechanism performs a massage operation on the back of the user who is reclining against the backrest portion 3.

[0037] As shown in FIGS. 2A to 2D and FIGS. 3A to 3D, the seat portion 2 has a sufficient width for a user who wants to receive a massage to sit on. The entire seat portion 2 is covered with a seat or the like. The upper surface of the seat portion 2 is formed in a flat surface shape, and a cushioning material is provided to enhance the sitting comfort of the user.

[0038] The seat portion 2 is supported from below at a predetermined height by the legs 5 installed on the floor surface F. Further, a moving frame 11 capable of supporting the weight applied by the user is provided below the seat portion 2. Further, armrest portions 4 are provided on the left and right sides of the seat portion 2.

[0039] The seat portion 2 is slidable by the slide mechanism 7 as the moving frame 11 moves in the front-rear direction. Note that the armrest portions 4 slide in the front-rear direction together with the seat portion 2.

[0040] The backrest portion 3 has a sufficient width to support the back of the user from the waist to the shoulders. The entire backrest portion 3 is covered with a casing, a seat, or the like. The front surface of the backrest portion 3 is formed in a flat surface shape, and a cushioning material is provided.

[0041] The backrest portion 3 of the present embodiment can project upward (extendable) and incline rearward by using a reclining mechanism 6 described later. That is, the chair-type massage machine 1 of the present embodiment can perform massage on the back of the user in the reclining posture.

[0042] Inside the backrest portion 3, a backrest frame 14 capable of supporting the weight applied from the back of the user is provided. The backrest frame 14 is movable in the front-rear direction along with the slide of the moving frame 11 (details will be described later) in the front-rear direction.

[0043] In addition, in the present embodiment, inside the backrest portion 3, a massage mechanism (not shown) for performing massage operations such as kneading, tapping, or vibration on the treatment portion of the back of the user sitting on the seat portion 2 is provided.

[0044] Further, the chair-type massage machine 1 of the present embodiment is provided with a footrest portion 9 into which the lower limbs of the user can be inserted. Inside the footrest portion 9, a foot massage mechanism (not shown) for performing massage on the lower limbs of the user is provided.

[0045] The footrest portion 9 can be retracted and extended between the front of the seat portion 2 and the lower side (inside the leg body 5) by a forward extension mechanism. That is, the footrest portion 9 can be extended to the front of the seat portion 2 when performing massage on the lower limbs. Further, the footrest portion 9 can be stored inside the leg body 5, in other words, below the seat portion 2 when not performing massage on the lower limbs.

[0046] As shown in FIG. 4, FIG. 5A, FIG. 5B, etc., the leg body 5 is formed so that its appearance is like a turret, and is a frame body capable of supporting the seat portion 2 at a predetermined height from the floor surface F. The leg body 5 has a fixed frame 10 installed on the floor surface F and a moving frame 11 on which the seat portion 2 and the backrest portion 3 are mounted and which is movable in the front-rear direction with respect to the fixed frame 10.

[0047] As shown in FIG. 4 and the like, the fixed frame 10 (base frame 10) is formed by combining a plurality of bar materials such as metal pipe materials and angle materials in a plurality of intersecting shapes in the vertical direction, horizontal direction, and front-rear direction. The fixed frame 10 is stably placed on the floor surface F and holds the moving frame 11 so as to be movable in the front-rear direction. Further, inside the fixed frame 10 (below the moving frame 11 on which the seat portion 2 is mounted), a space capable of accommodating the footrest portion 9 is formed.

[0048] The fixed frame 10 is installed and fixed on the floor surface F. The fixed frame 10 has a pair of bottom bar materials 10a provided at the bottom and extending in the front-rear direction, a horizontal bar material 10b connecting the pair of bottom bar materials 10a, a front vertical bar material 10c erected from the front end side of the bottom bar material 10a, and a rear vertical bar material 10d erected from the rear end side of the bottom bar material 10a.

[0049] A pair of left and right bottom bar materials 10a are provided. The right bottom bar material 10aR is provided with its axis facing the front-rear direction. The left bottom bar material 10aL is provided at a predetermined distance from the right bottom bar material 10aR in the left-right direction (width direction). The bottom bar material 10a is provided with a leg member that can be placed on the floor surface F.

[0050] A pair of front and rear horizontal bar materials 10b are provided. The front horizontal bar material 10b is joined so as to bridge the front ends of the right bottom bar material 10aR and the left bottom bar material 10aL. The rear horizontal bar material 10b is joined so as to bridge the rear ends of the right bottom bar material 10aR and the left bottom bar material 10aL.

[0051] A pair of left and right front vertical bar materials 10c are provided. The right front vertical bar material 10cR is erected from the front end side of the right bottom bar material 10aR. The left front vertical bar material 10cL is erected from the front end side of the left bottom bar material 10aL.

[0052] The rear vertical bars 10d are provided in a pair on the left and right. The right rear vertical bar 10dR is erected from the rear end side of the right bottom bar 10aR. The left rear vertical bar 10dL is erected from the rear end side of the left bottom bar 10aL.

[0053] The right front vertical bar 10cR and the right rear vertical bar 10dR are connected by an upper bar 10eR. In this embodiment, the right upper bar 10eR is provided horizontally and in the front-rear direction so as to bridge the upper part of the right front vertical bar 10cR and the upper part of the rear vertical bar 10dR, and connects the right front vertical bar 10cR and the rear vertical bar 10dR. This right upper bar 10eR serves as the second guide rail 37 of the slide mechanism 7 described later.

[0054] The right upper bar 10eR and the right bottom bar 10aR are connected by a central bar 10fR. In this embodiment, the right central bar 10fR is provided in an inclined state from the rear lower side to the front upper side.

[0055] The right central bar 10fR is provided in an inclined state so as to cross the substantially central part of the right upper bar 10eR and the rear part of the bottom bar 10aR, and connects the right upper bar 10eR and the bottom bar 10aR. This right central bar 10fR serves as the first guide rail 19 that constitutes the interlocking mechanism 8 described later.

[0056] The left front vertical bar 10cL and the left rear vertical bar 10dL are connected by an upper bar 10eL. In this embodiment, the left upper bar 10eL is provided horizontally and in the front-rear direction so as to bridge the upper part of the left front vertical bar 10cL and the upper part of the rear vertical bar 10dL, and connects the left front vertical bar 10cL and the rear vertical bar 10dL. This left upper bar 10eL serves as the second guide rail 37 of the slide mechanism 7 described later.

[0057] The upper bar 10eL on the left side and the bottom bar 10aL on the left side are connected by the central bar 10fL. In this embodiment, the central bar 10fL on the left side is provided in an inclined state from the rear lower side to the front upper side.

[0058] The central bar 10fL on the left side is provided in an inclined state like a crossbar between the approximate center of the upper bar 10eL on the left side and the rear part of the bottom bar 10aL, and connects the upper bar 10eL and the bottom bar 10aL on the left side. This central bar 10fL on the left side becomes the first guide rail 19 that constitutes the interlocking mechanism 8 described later.

[0059] The moving frame 11 is slidable in the front - rear direction with respect to the fixed frame 10 by the slide mechanism 7. The moving frame 11 is equipped with a backrest frame 14 that supports the backrest part 3 in a reclining - capable manner and a seat part 2. That is, the moving frame 11 (seat frame 11) is connected to the backrest frame 14 via the reclining mechanism 6.

[0060] When the backrest frame 14 operates by the reclining mechanism 6, the backrest frame 14 can move in the front - rear direction by the interlocking mechanism 8, and the moving frame 11 connected to the backrest frame 14 can move in the front - rear direction by the slide mechanism 7.

[0061] That is, in the moving frame 11, by the interlocking mechanism 8, the reclining operation of the backrest frame 14 by the reclining mechanism 6 and the sliding operation in the front - rear direction by the slide mechanism 7 are performed simultaneously.

[0062] The moving frame 11 supports the seat part 2 on the front side, and a long groove 21 (guide plate 22) that constitutes the reclining mechanism 6 is attached to the rear side. The moving frame 11 is a member formed by combining bar materials such as metal pipe materials and angle materials in a frame shape.

[0063] The moving frame 11 has a seat frame body 12 on which the seat part 2 is mounted and a support frame body 13 that supports the seat frame body 12.

[0064] The seat frame 12 is a member formed by combining bar materials in a frame shape in the front - rear direction and the left - right direction. The seat part 2 is placed on the upper part of the seat frame 12.

[0065] In this embodiment, the seat frame 12 includes a pair of left - right arranged front - rear bars 12a provided to slope slightly upward in the front and face the front - rear direction, and a pair of left - right horizontal bars 12b provided to connect the pair of left - right front - rear bars 12a.

[0066] A pair of left - right front - rear bars 12a are provided. The right - hand front - rear bar 12a has its axis provided to face the front - rear direction. The left - hand front - rear bar 12a is provided at a predetermined distance from the right - hand front - rear bar 12a in the left - right direction (width direction).

[0067] The front - side horizontal bar 12b is provided to connect the front ends of the pair of left - right front - rear bars 12a. The rear - side horizontal bar 12b is provided to connect the rear parts of the pair of left - right front - rear bars 12a. The rear end of the rear - side horizontal bar 12b is connected to the support frame 13 (front vertical bar 13a). The seat frame 12 is formed in a rectangular shape (substantially U - shaped) that is slightly longer in the left - right direction in plan view.

[0068] Outside the left - right direction of the pair of left - right front - rear bars 12a, outer bars 12c are provided so as to be parallel to the front - rear bars 12a in plan view. The pair of left - right outer bars 12c are provided horizontally and facing the front - rear direction. These pair of left - right outer bars 12c serve as slide bars 39 that constitute a slide mechanism 7 described later.

[0069] Also, support plates 15 for supporting the armrest parts 4 are provided at the front ends of the pair of left - right front - rear bars 12a respectively. By attaching the armrest parts 4 to these support plates 15, they are fixed to the moving frame 11, and the armrest parts 4 move in the front - rear direction together with the moving frame 11.

[0070] The support frame body 13 is provided on the left and right sides of the rear part of the seat frame body 12, respectively. A reclining mechanism 6 including a guide plate 22 formed with a long groove 21 is attached to the support frame body 13. The reclining mechanism 6 is attached to the inner side in the left-right direction (the inner side of the leg body 5) of the support frame body 13.

[0071] The support frame body 13 is a rectangular frame body formed by combining bar materials in a frame shape in the front-rear direction and the left-right direction. The support frame body 13 is provided in the vertical direction along the backrest frame 14 described later.

[0072] The support frame body 13 has a front vertical bar 13a that is a vertically long member and is attached to the rear part of the seat frame body 12 (the rear end of the rear horizontal bar 12b), a rear vertical bar 13b that is arranged behind the front vertical bar 13a, and a bottom bar 13c that connects the front vertical bar 13a and the rear vertical bar 13b. A pair of support frame bodies 13 are arranged on the left and right.

[0073] The upper end of the rear vertical bar 13b is bent backward from about the upper 1 / 4 and is formed in a substantially L shape. The upper end of the bent rear vertical bar 13b is connected to the upper end of the front vertical bar 13a. The bottom bar 13c is provided orthogonally so as to bridge the lower part of the front vertical bar 13a and the lower part of the rear vertical bar 13b, and connects the front vertical bar 13a and the rear vertical bar 13b.

[0074] Also, a support plate 16 for supporting the armrest portion 4 is provided below the bent portion of the front vertical bar 13a and above the rear end of the front and rear bar 12a. By attaching the armrest portion 4 to this support plate 16, the armrest portion 4 is fixed to the moving frame 11, and the armrest portion 4 moves in the front-rear direction together with the moving frame 11.

[0075] Also, a plate member 17 is provided at the upper rear part of the rear vertical bar 13b. The plate member 17 is a member formed to protrude rearward. The plate member 17 of the present embodiment is formed in a substantially triangular shape. A second shaft 36 constituting the slide mechanism 7 described later is provided in a penetrating manner at the rear end of the plate member 17.

[0076] The backrest frame 14 is formed by combining a plurality of bar materials such as metal pipe materials and angle materials into a substantially rectangular shape in plan view. The backrest frame 14 is a frame that can sufficiently support the user's back via a cushioning material.

[0077] The backrest frame 14 is provided in a pair on the left and right, and has a pair of vertically long vertical bar materials 14a in the vertical direction, and a pair of upper and lower horizontal bar materials 14b provided so as to connect the upper and lower ends of the pair of left and right vertical bar materials 14a. The backrest frame 14 is formed in a vertically long rectangular shape (substantially U-shaped) in front view.

[0078] On the lower front side of these pair of left and right vertical bar materials 14a, auxiliary bar materials 14c are provided so as to be parallel to the vertical bar materials 14a. The auxiliary bar materials 14c are provided so as to project outward in the left and right directions. The auxiliary bar material 14c is provided so as to project leftward for the left vertical bar material 14a and project rightward for the right vertical bar material 14a.

[0079] That is, the interval (width) between the pair of left and right auxiliary bar materials 14c is wider than the interval (width) between the pair of left and right vertical bar materials 14a. A reclining mechanism 6 described later is attached to the outside in the left and right directions of the pair of left and right vertical bar materials 14a.

[0080] In addition, a rear bar material 14d is provided at the lower part of the backrest frame 14. The rear bar material 14d is a member that connects the lower rear side of the auxiliary bar material 14c and the lower rear side of the vertical bar material 14a, and is provided so as to project rearward. A first shaft 18 that constitutes an interlocking mechanism 8 is provided on the rear bar material 14d.

[0081] Now, as shown in FIGS. 1 to 5B, the chair-type massage machine 1 (chair 1) of the present embodiment has an interlocking mechanism 8 that interlocks a reclining operation in which the backrest portion 3 is projected upward and then reclined backward by a reclining mechanism 6 and a sliding operation in which the seat portion 2 (moving frame 11) is moved forward by a slide mechanism 7.

[0082] In explaining the features of the chair-type massage machine 1 of the present embodiment, the interlocking mechanism 8, the reclining mechanism 6, and the slide mechanism 7 will be described in detail in this order.

[0083] The interlocking mechanism 8, which is a feature of the chair-type massage machine 1 of the present embodiment, will be described.

[0084] As shown in FIGS. 2A to 5B, the interlocking mechanism 8 of the present embodiment is a mechanism that interlocks the reclining operation of the backrest frame 14 by the reclining mechanism 6 and the sliding operation of the moving frame 11 in the front-rear direction by the slide mechanism 7.

[0085] The interlocking mechanism 8 of the present embodiment is configured to interlock the slide mechanism 7 using the driving force for reclining the backrest portion 3 output by the elevating mechanism 28 (details will be described later) that constitutes the reclining mechanism 6, and slide the moving frame 11 in the front-rear direction.

[0086] The interlocking mechanism 8 of the present embodiment can interlock the operation of raising the backrest portion 3 (backrest frame 14) by the reclining mechanism 6 and then inclining it backward for reclining, and the operation of sliding the seat portion 2 (moving frame 11) forward by the slide mechanism 7.

[0087] Further, the interlocking mechanism 8 of the present embodiment can interlock the accommodating operation of raising the backward-inclined backrest portion 3 (backrest frame 14) by the reclining mechanism 6 and then moving the lower portion into the leg body 5 (fixed frame 10), and the sliding operation of moving the seat portion 2 (moving frame 11) backward by the slide mechanism 7.

[0088] The interlocking mechanism 8 includes a first shaft 18 provided at the lower part of the backrest frame 14, a first guide rail 19 provided on the fixed frame 10 in a state inclined upward from the rear lower side to the front upper side, and a first slider portion 20 attached to the first shaft 18 and moving obliquely on the first guide rail 19.

[0089] As shown in FIGS. 4 to 5B, a first shaft 18 is provided at the lower part of the backrest frame 14. A first slider portion 20 is arranged on the first shaft 18. The first shaft 18 is a rod-shaped member protruding outward in the width direction from the side surface of the rear bar 14d constituting the backrest frame 14.

[0090] The first shaft 18 is a cylindrical or tubular rod member, and a pair of left and right is provided. That is, there are two first shafts 18, namely a left shaft protruding leftward from the side surface of the left rear bar 14d and a right shaft protruding rightward from the side surface of the right rear bar 14d.

[0091] A first slider portion 20 that fits the first guide rail 19 so as to be movable in the vertical direction is attached to the first shaft 18.

[0092] As shown in FIGS. 2A to 4, etc., the upper end of the first guide rail 19 is joined to the middle portion in the front-rear direction of the upper bar 10e, and the lower end is joined to the rear portion of the bottom bar 10a. That is, the first guide rail 19 is provided between the upper bar 10e and the bottom bar 10a of the fixed frame 10 in a state inclined upward from the rear lower side to the front upper side, like a crossbar.

[0093] The first guide rail 19 (inclined rail 19) is a central bar 10f provided on the fixed frame 10 and inclined obliquely upward in the front. The central bar 10fR on the right side is the first guide rail 19 on the right side. The central bar 10fL on the left side is the first guide rail 19 on the left side.

[0094] That is, a pair of left and right first guide rails 19 are provided. A first slider part 20 that moves in the axial direction is fitted to the first guide rail 19.

[0095] The first slider part 20 moves the moving frame 11 in the front-rear direction by moving between the rear lower side and the front upper side on the first guide rail 19. A pair of left and right first slider parts 20 (tilted slider parts 20) are provided.

[0096] A rectangular through-hole penetrating in the front-rear direction is formed in the lower part of the first slider part 20. The first guide rail 19 is slidably inserted into this through-hole. That is, the first slider part 20 is provided so as to surround the upper, lower, left, and right side surfaces of the first guide rail 19 and is slidably arranged.

[0097] In addition, a cylindrical through-hole penetrating in the left-right direction is formed in the upper part of the first slider part 20. The first shaft 18 is rotatably inserted into this through-hole. For example, when the first slider part 20 moves from the rear lower side to the front upper side on the first guide rail 19 (moves in an obliquely upward direction), the backrest frame 14 rises and the moving frame 11 moves forward.

[0098] Now, when reclining the backrest part 3, although the possibility is low, for some reason, there is a possibility that a foreign object may be caught between the reclined backrest part 3 and the rear case body 43 (armrest part 4). Similarly, when reclining the backrest part 3, there is a possibility that a foreign object may be caught between the upper end of the reclined backrest part 3 and the wall W.

[0099] The chair-type massager 1 of the present embodiment is provided with a contact sensor (not shown) on the back surface of the backrest part 3. The contact sensor is provided, for example, at the upper end of the back surface of the backrest part 3 and at the lower side on the side of the back surface. The contact sensor may be provided on the entire back surface of the backrest part 3.

[0100] The contact sensor provided on the lower side of the rear side of the backrest portion 3 detects a foreign object between the backrest portion 3 and the rear case body 43 (armrest portion 4) when the backrest portion 3 is reclined, and based on the detection result, instantaneously stops the reclining of the backrest portion 3 or instantaneously raises it forward to prevent the foreign object from being pinched.

[0101] The contact sensor provided at the upper end of the back surface of the backrest portion 3 detects contact when a foreign object is pinched between the upper end of the backrest portion 3 and the wall W or when the upper end of the backrest portion 3 slightly contacts the wall W when the backrest portion 3 is reclined. Based on the detection result, it is possible to instantaneously stop the reclining of the backrest portion 3 or instantaneously raise it forward.

[0102] Next, the movement of the moving frame 11 in the front - rear direction by the interlocking mechanism 8 will be described.

[0103] The interlocking mechanism 8 generates a force component (x - direction component) directed forward or backward from the upward or downward movement (movement in the z - direction) of the backrest frame 14 by the movement of the first slider portion 20 along the first guide rail 19 in a front - rising inclined state. The generated force component directed forward or backward is further transmitted to the first shaft 18 to which the first slider portion 20 is attached, and the moving frame 11 is moved forward or backward via the backrest frame 14.

[0104] The interlocking mechanism 8 is provided on the fixed frame 10 with the first guide rail 19 in a front - rising inclined state from the rear - lower side to the front - upper side. The first slider portion 20 is provided at the lower part (rear bar 14d) of the backrest frame 14 via the first shaft 18.

[0105] The first slider portion 20 is slidably fitted to the first guide rail 19. The backrest frame 14 is connected to the fixed frame 10 (first guide rail 19) via the first shaft 18 and the first slider portion 20.

[0106] When the backrest frame 14 is raised by the reclining mechanism 6, the first slider portion 20 attached to the first shaft 18 moves obliquely from the rear lower side to the front upper side on the first guide rail 19. It moves in the front upper direction.

[0107] As the first slider portion 20 moves on the first guide rail 19 in the upper oblique front upper direction, the ascending component (z-direction component) of the backrest frame 14 is resolved into a forward movement component (x-direction component) of the moving frame 11.

[0108] That is, when the backrest frame 14 is raised, the first slider portion 20 (tilted slider portion 20) obliquely ascends from the rear lower side to the front upper side on the first guide rail 19 (tilted rail 19). As the backrest frame 14 ascends, it moves forward along with the movement of the first slider portion 20.

[0109] As the backrest frame 14 moves forward, the moving frame 11 slides forward by using the driving force of the reclining mechanism 6 by the interlocking mechanism 8. In this way, the interlocking mechanism 8 generates a component for moving the moving frame 11 forward.

[0110] In the interlocking mechanism 8 of the present embodiment, when the backrest portion 3 is reclined, the moving frame 11 (the moving frame 11 on which the backrest portion 3, the seat portion 2, and the armrest portion 4 are provided) can be slid in the front-rear direction.

[0111] That is, by adopting the configuration of the interlocking mechanism 8 described in detail above, when installed (must be installed) in a state where there is almost no space between the back surface of the backrest portion 3 and the wall W of the room due to the situation such as the size of the room, for example, when the distance between the wall W of the room and the back surface of the backrest portion 3 can only be opened by several centimeters, the following characteristic operations are exhibited.

[0112] As shown in FIGS. 2A to 2C, FIGS. 3A to 3C, etc., for example, the chair-type massager 1 is switched from the sofa mode to another mode (an operation of reclining the backrest portion 3). As a procedure for the operation of reclining the backrest portion 3, it is advisable to follow from FIG. 2A to FIG. 2D in a perspective view and from FIG. 3A to FIG. 3D in a side view.

[0113] The reclining mechanism 6 projects the backrest portion 3 upward from the leg portion 5. The upper part of the backrest portion 3 rises along the wall W.

[0114] The interlocking mechanism 8 interlocks with the operation of the backrest portion 3 by the reclining mechanism 6 and moves the moving frame 11 forward by the sliding mechanism 7.

[0115] The seat portion 2 and the armrest portion 4 slide forward from the basic position at position (i) in FIG. 3A, through position (ii) in FIG. 3B, to position (iii) in FIG. 3C. When the backrest portion 3 stops at the highest rising position, the chair-type massager 1 can be used as a comfort mode as shown in FIGS. 2C, 3C, etc.

[0116] As shown in FIGS. 2D, 3D, etc., the raised backrest portion 3 is reclined backward by the reclining mechanism 6.

[0117] The interlocking mechanism 8 interlocks with the operation of the backrest portion 3 by the reclining mechanism 6 and moves the moving frame 11 forward by the sliding mechanism 7.

[0118] The upper part of the backrest portion 3 moves downward along the wall W while the lower part moves forward. The backrest portion 3 reclines backward.

[0119] With further forward movement of the moving frame 11, the reclining backrest portion 3 moves forward and at the same time, the seat portion 2 also slides further forward. The seat portion 2 and the armrest portion 4 slide forward from position (iii) in FIG. 3C to position (iv) in FIG. 3D.

[0120] That is, the backrest portion 3 is inclined rearward by the reclining mechanism 6 and moves forward by the interlocking mechanism 8. At the same time, the seat portion 2 slides further forward by the slide mechanism 7 in conjunction with the operation of the backrest portion 3 by the interlocking mechanism 8. The chair-type massager 1 enters the lounge mode shown in FIGS. 2D and 3D, etc.

[0121] On the other hand, as shown in FIGS. 2C to 2D, 3C to 3D, etc., the chair-type massager 1 is switched from the lounge mode to another mode (operation in the accommodating direction). As the procedure for the operation in the accommodating direction, it is advisable to trace back in the reverse direction from FIGS. 2D and 3D to FIGS. 2A and 3A.

[0122] The reclining mechanism 6 raises the rearward-inclined backrest portion 3 forward. The upper part of the backrest portion 3 rises along the wall W. The backrest portion 3 is in a protruding state.

[0123] The moving frame 11 moves rearward by the slide mechanism 7 in conjunction with the operation of the backrest portion 3 by the interlocking mechanism 8. Since the moving frame 11 moves rearward, the seat portion 2 slides rearward.

[0124] As shown in FIGS. 2C and 3C, etc., even if the backrest portion 3 is stopped when it rises forward, the chair-type massager 1 can be used as the comfort mode.

[0125] When the raised backrest portion 3 is moved downward by the reclining mechanism 6, the lower part of the backrest portion 3 is accommodated inside the leg body 5. The moving frame 11 moves further rearward by the slide mechanism 7 in conjunction with the operation of the backrest portion 3 by the interlocking mechanism 8.

[0126] The seat portion 2 slides further rearward in conjunction with the operation of the backrest portion 3 and returns to the basic position. The chair-type massager 1 enters the sofa mode shown in FIGS. 2D and 3D, etc.

[0127] With the interlocking mechanism 8 of the present embodiment, by moving the moving frame 11 in the front-rear direction, the reclining operation of the backrest portion 3 can be performed without contacting the wall W even at a narrow interval (so-called realizing zero wall), and the seat portion 2 and the armrest portion 4 can be slid in the front-rear direction.

[0128] By providing such an interlocking mechanism 8, the chair-type massager 1 can be switched between a sofa mode (basic position), a comfort mode (the backrest portion 3 is in a protruding position), and a lounge mode (reclining position).

[0129] The reclining mechanism 6 is configured to switch from a sofa mode (basic position) in which the lower part of the backrest portion 3 is accommodated in the leg body 5, move forward while raising the backrest portion 3 to a comfort mode, and perform a reclining operation of tilting the raised backrest portion 3 backward to switch to a lounge mode. A pair of left and right reclining mechanisms 6 are provided.

[0130] Regarding the configuration of the reclining mechanism 6, for easy understanding in exploded views such as FIGS. 4 and 5B, it is shown outside the left and right directions of the moving frame 11 (leg body 5), but as shown in FIG. 5A, in the actual chair-type massager 1, it is attached inside the left and right directions of the support frame body 13 of the moving frame 11. That is, the support frame body 13 is arranged outside in the left and right directions, and the reclining mechanism 6 is arranged inside the support frame body 13.

[0131] As shown in FIGS. 4, 5A, 5B, etc., the reclining mechanism 6 includes a guide plate 22 provided on the seat portion 2 and having a long groove 21 formed in the vertical direction, and a guide body 23 that is rotatably fitted into the long groove 21 and guided along the long groove 21.

[0132] The guide plate 22 is a strip-shaped plate that is rectangular. Also, the guide plate 22 of the present embodiment is bent backward by about the upper 1 / 4 in order to conform to the shape of the long groove 21 described later. The guide plate 22 is formed in a substantially L shape in plan view. The guide plates 22 are a pair of members arranged on the left and right. The guide plates 22 are arranged outside the backrest frame 14.

[0133] The long groove 21 is formed in the guide plate 22 attached to the support frame body 13 of the moving frame 11. The long groove 21 is curved backward at the upper part in order to perform a reclining operation that inclines the backrest portion 3 backward. In the present embodiment, the long groove 21 is bent backward by about the upper 1 / 4 and is formed in a substantially L shape in plan view.

[0134] The long groove 21 has a groove width that allows the fitting of the guide body 23. That is, the guide body 23 is arranged to be rollable in the vertical direction along the long groove 21. The long groove 21 includes a lower groove portion 21a that extends along the vertical direction, and an upper groove portion 21b that is formed by connecting to the upper side of the lower groove portion 21a and is inclined backward more than the lower groove portion 21a.

[0135] The lower groove portion 21a is a linearly inclined groove in side view. That is, the guide body 23 moves in the obliquely upward rear direction in the lower groove portion 21a. The length of the lower groove portion 21a is in the range from the lower end of the long groove 21 to about 3 / 4 of the height. The lower groove portion 21a is provided with a rack gear 31 that constitutes the elevating mechanism 28.

[0136] The upper groove portion 21b is a groove that communicates with the lower groove portion 21a and is further bent backward. The upper groove portion 21b is a linearly inclined groove that is inclined further backward than the upper groove portion 21b in side view.

[0137] The upper end of the upper groove portion 21b can also be said to be the "obliquely rear upper end" that is further rearward than the upper end of the lower groove portion 21a. The guide body 23 moves in the obliquely upward rear direction in the upper groove portion 21b. The length of the upper groove portion 21 is in the range of about the upper 1 / 4 of the entire long groove 21.

[0138] The lower groove portion 21a is an area for raising the backrest frame 14 from the sofa mode (basic position). The upper groove portion 21b is an area for tilting the raised backrest frame 14 backward (to the lounge mode).

[0139] The guide plate 22 formed with the long groove 21 is attached to the support frame body 13 of the moving frame 11 such that it follows the vertical direction from the lower end portion to the bending portion and is inclined from the bending portion to the upper end portion.

[0140] A guide body 23 (rotating body 23) is fitted into the long groove 21. The guide body 23 is guided along the formation direction of the long groove 21 in a state of being fitted into the long groove 21, so that the backrest portion 3 can be guided in the vertical direction and the front - rear direction.

[0141] At least two or more guide bodies 23 are vertically provided in the long groove 21. The guide body 23 of the present embodiment includes a lower guide body 23a provided at the lower part of the long groove 21 and an upper guide body 23b provided at a position separated above the lower guide body 23a. That is, the guide body 23 is movably fitted into the long groove 21 at two positions in the vertical direction and is for raising and lowering or tilting the backrest portion 3.

[0142] A pair of left - right lower guide bodies 23a are provided. The lower guide body 23a has an outer diameter substantially the same as the opening width of the long groove 21 in order to fit into the long groove 21. The lower guide body 23a is a cylindrical body, and a through - hole into which a rotation drive shaft 30 is fitted is formed at the center. That is, the lower guide body 23a is attached to both end portions of the rotation drive shaft 30 arranged with the axis in the left - right direction.

[0143] The lower guide body 23a is provided with a pinion gear 32 that constitutes the lifting mechanism 28. The pinion gear 32 meshes with a rack gear 31 provided in the lower groove portion 21a. The lower guide body 23a is enabled to move in the lower groove portion 21a.

[0144] The upper guide bodies 23b are provided in a pair on the left and right. Since the upper guide bodies 23b are to be fitted into the long groove 21, the outer diameter is made the same as the opening width of the long groove 21. The upper guide bodies 23b are cylindrical bodies, and through holes into which the third shafts 24 are to be fitted are formed at the centers. The upper guide bodies 23b are made movable from the middle part in the vertical direction of the lower groove part 21a to the upper groove part 21b.

[0145] The lower guide bodies 23a and the upper guide bodies 23b are provided so as to be sandwiched from the left and right by the outer case member 25a and the inner case member 25b. With this configuration, the guide bodies 23 are movable in the vertical direction with respect to the long groove 21, but it is suppressed that the guide bodies 23 come out of the long groove 21 (separate left and right).

[0146] As shown in FIG. 5B, the upper guide bodies 23b are attached to the third shafts 24 provided on the backrest frame 14. The third shafts 24 are rod-shaped members that protrude outward in the width direction from the side surfaces of the auxiliary bar members 14c that make up the backrest frame 14. The third shafts 24 are rod members having a diameter smaller than the opening width of the long groove 21.

[0147] A pair of the third shafts 24 are provided on the left and right. That is, there are two third shafts 24: a left shaft that protrudes leftward from the side surface of the left auxiliary bar member 14c and a right shaft that protrudes rightward from the side surface of the right auxiliary bar member 14c.

[0148] The upper guide bodies 23b are rotatably attached to the third shafts 24 on the left and right respectively. The upper guide bodies 23b are vertically movably fitted into the respective left and right long grooves 21.

[0149] In this embodiment, the guide plate 22 is stored in the case body 25. This case body 25 is divided into two parts on the left and right and is composed of an outer case member 25a and an inner case member 25b.

[0150] The outer case member 25a is formed with a long groove 26 having the same shape as the long groove 21. The long groove 26 of the outer case member 25a, similar to the long groove 21, consists of a lower groove portion 26a extending along the vertical direction and an upper groove portion 26b formed by connecting to the upper side of the lower groove portion 26a and falling backward more than the lower groove portion 26a.

[0151] The lower groove portion 26a is a range that extends straight from the lower end of the long groove 26 to about 3 / 4 of the height. The upper groove portion 26b bends backward from the upper end of the lower groove portion 26a and is in the range of about 1 / 4 of the upper side of the entire long groove 26 of the range.

[0152] The inner case member 25b is formed with a long groove 27 having the same shape as the long groove 21. The long groove 27 of the inner case member 25b, similar to the long groove 21, consists of a lower groove portion 27a extending along the vertical direction and an upper groove portion 27b formed by connecting to the upper side of the lower groove portion 27a and falling backward more than the lower groove portion 27a.

[0153] The lower groove portion 27a is a range that extends straight from the lower end of the long groove 27 to about 3 / 4 of the height. The upper groove portion 27b bends backward from the upper end of the lower groove portion 27a and is in the range of about 1 / 4 of the upper side of the entire long groove 27.

[0154] The reclining mechanism 6 includes a lifting mechanism 28 that raises and lowers the backrest frame 14 to perform a reclining operation.

[0155] The lifting mechanism 28 has a drive unit 29 that outputs a driving force for raising and lowering the backrest frame 14, a rotary drive shaft 30 that is provided on the backrest frame 14 and to which the lower guide body 23a is attached and rotates by the output driving force, a rack gear 31 provided along the long groove 21, and a pinion gear 32 that is provided on the lower guide body 23a, meshes with the rack gear 31, and rotates by the rotation of the rotary drive shaft 30 to raise the backrest frame 14 along the long groove 21.

[0156] The drive unit 29 and the rotary drive shaft 30 of the lifting mechanism 28 are provided on the backrest frame 14.

[0157] The drive unit 29 includes a drive motor 33 that generates a rotational driving force and a gear case 34 that decelerates the rotational driving force. The drive motor 33 is arranged such that its output shaft faces downward. The gear case 34 is arranged below the drive motor 33, and the output shaft is inserted therein. The rotational driving force output from the drive motor 33 is transmitted to the rotary drive shaft 30 via the gear case 34.

[0158] The rotary drive shaft 30 is arranged at the lower part of the backrest frame 14 such that its axis is oriented in the left - right direction. The length of this rotary drive shaft 30 exceeds the length from the left end to the right end of the backrest frame 14.

[0159] That is, the rotary drive shaft 30 is rotatably arranged about an axis oriented in the left - right direction and is rotationally driven by the rotational driving force output from the drive motor 33. Lower guide bodies 23a are rotatably arranged at both the left and right ends of this rotary drive shaft 30. The left and right lower guide bodies 23a are vertically movably fitted into the respective left and right long grooves 21.

[0160] The rack gears 31 are provided on the guide plate 22 along the vertical direction of the lower groove portion 21a. A pair of rack gears 31 is provided on the left and right. The rack gears 31 are engageable with the pinion gears 32 and are attached such that their tooth tips face toward the lower groove portion 21a.

[0161] That is, the rack gears 31 are attached to the guide plate 22 along the front - side opening edge of the lower groove portion 21a. The pinion gears 32 are engaged with the rack gears 31 from the front.

[0162] The pinion gears 32 are provided on the lower guide bodies 23a. A pair of pinion gears 32 is provided on the left and right. In this embodiment, the lower guide bodies 23a are provided so as to sandwich the pinion gears 32 in the left - right direction. The pinion gears 32 are attached to the ends of the rotary drive shaft 30 and are integrally rotatable.

[0163] That is, the pinion gear 32 is in mesh with the rack gear 31. The pinion gear 32 is rotationally driven by a drive motor 33 located on the lower left side of the backrest frame 14. The rotating pinion gear 32 (lower guide body 23a) moves on the rack gear 31 along the lower groove portion 21a.

[0164] When the rotary drive shaft 30 is rotationally driven by the rotational driving force of the drive motor 33, the lower guide body 23a integrally attached to the rotary drive shaft 30 also rotates. Then, the pinion gear 32 provided on the lower guide body 23a moves vertically while being in mesh with the rack gear 31. As the pinion gear 32 travels on the rack gear 31, the backrest frame 14 is raised and lowered with respect to the fixed frame 10.

[0165] As shown in FIG. 5B, the guide plate 22 is provided with limit switches 35 for detecting the limit points of the reclining upward and rearward tilting movement of the backrest frame 14 and the limit point of the downward movement.

[0166] The limit switches 35 are provided at the lower end of the lower groove portion 21a and the rear end of the upper groove portion 21b, respectively. The lower limit switch 35 detects the limit point of the downward movement of the backrest frame 14. The upper limit switch 35 detects the limit point of the rearward tilting movement of the reclining of the backrest frame 14.

[0167] When the limit point is detected by this limit switch 35 and a stop signal is transmitted, the drive of the drive unit 29 stops. That is, by the limit switch 35 detecting the position of the backrest frame 14, the chair type massager 1 can be switched to any position of the "sofa mode", "comfort mode", and "reclining mode".

[0168] Next, the slide mechanism 7 constituting the chair type massager 1 of the present embodiment will be described.

[0169] The slide mechanism 7 is provided on the moving frame 11 and slides the moving frame 11 in the front-rear direction.

[0170] That is, when the backrest portion 3 performs a reclining operation, the driving force by the reclining mechanism 6 is converted into a forward force by the interlocking mechanism 8, and that force is applied to the moving frame 11. The slide mechanism 7 slides the moving frame 11 on which the seat portion 2 is mounted in the front-rear direction. Along with that slide, the backrest portion 3 moves forward.

[0171] The slide mechanism 7 includes a second shaft 36 provided at the rear portion of the support frame body 13 of the moving frame 11, a second guide rail 37 provided on the fixed frame 10 in the front-rear direction, and a second slider portion 38 attached to the second shaft 36 and moving the second guide rail 37 in the front-rear direction.

[0172] The moving frame 11 is provided with a second shaft 36 on which the second slider portion 38 is disposed. The second shaft 36 is provided on the support frame body 13 constituting the moving frame 11. The second shaft 36 is a rod-shaped member that protrudes outward in the width direction from the side surface of a plate member 17 provided on the rear vertical bar 13b of the support frame body 13.

[0173] The second shaft 36 is a cylindrical or tubular member, and a pair of left and right are provided. That is, there are two second shafts 36: a left shaft that protrudes leftward from the side surface of the left plate member 17 and a right shaft that protrudes rightward from the side surface of the right plate member 17.

[0174] A second slider portion 38 that fits movably in the front-rear direction with the second guide rail 37 is attached to the second shaft 36.

[0175] As shown in FIGS. 2A to 4 and the like, the second guide rail 37 guides the moving frame 11 in the front-rear direction. The second guide rail 37 is provided horizontally in the front-rear direction. A pair of left and right second guide rails 37 (horizontal rails 37) are provided.

[0176] The second guide rail 37 has its front end joined to the front end of the front vertical bar 10c that constitutes the fixed frame 10, and its rear end joined to the upper side of the rear vertical bar 10d. The second guide rail 37 is the upper bar 10e that constitutes the fixed frame 10.

[0177] The upper bar 10eR is the second guide rail 37 on the right side. The upper bar 10eL is the second guide rail 37 on the left side. A second slider part 38 is fitted to the second guide rail 37 so as to be movable in the front - rear direction.

[0178] By moving the second slider part 38 in the front - rear direction along the second guide rail 37, the moving frame 11 is slid horizontally and in the front - rear direction. A pair of left - right second slider parts 38 (horizontal slider parts 38) are provided.

[0179] A rectangular through - hole penetrating in the front - rear direction is formed in the lower part of the second slider part 38. The second guide rail 37 is slidably inserted into this through - hole. That is, the second slider part 38 is provided so as to surround the upper, lower, left, and right side surfaces of the second guide rail 37 and is slidably arranged.

[0180] Also, a cylindrical through - hole penetrating in the left - right direction is formed in the upper part of the second slider part 38 is formed. The second shaft 36 is rotatably inserted into this through - hole. For example, when the second slider part 38 moves from the rear side to the front side on the second guide rail 37, the moving frame 11 moves forward.

[0181] Further, the slide mechanism 7 includes a slide bar 39 provided on the moving frame 11 so as to be parallel to the second guide rail 37 in a plan view and slid by the forward - backward movement of the moving frame 11, and a guide groove 40 provided on the fixed frame 10 and guiding the slide bar 39 in the front - rear direction.

[0182] The slide bar 39 guides the moving frame 11 in the front - rear direction. A pair of left - right slide bars 39 are provided.

[0183] The slide bar 39 is the outer bar 12c that constitutes the seat frame 12 of the moving frame 11. The slide bar 39 is provided on the moving frame 11 outside the front and rear bars 12a in the left - right direction and parallel to the second guide rail 37.

[0184] The front end of the slide bar 39 is joined to the front end of the front and rear bar 12a, and the rear end is joined to the rear end of the front and rear bar 12a. The slide bar 39 is provided horizontally in the front - rear direction. The slide bar 39 is slidably inserted into the guide groove 40. When the slide bar 39 moves in the front - rear direction along the guide groove 40, the moving frame 11 slides in the front - rear direction.

[0185] The guide groove 40 guides the slide bar 39 in the front - rear direction. The guide groove 40 is attached to the upper part of the front vertical bar 10c. A pair of left - right guide grooves 40 are provided.

[0186] A rectangular through - hole penetrating in the front - rear direction is formed in the lower part of the guide groove 40. The slide bar 39 is slidably inserted into this through - hole. That is, the guide groove 40 has the same structure as the second slider part 38.

[0187] The guide groove 40 is provided so as to surround the upper, lower, left, and right side surfaces of the slide bar 39 and is slidably arranged. For example, when the slide bar 39 moves from the rear side to the front side on the guide groove 40, the moving frame 11 moves forward.

[0188] As shown in FIGS. 1 to 3D etc., armrest portions 4 are provided on the left and right sides of the seat portion 2 respectively. The armrest portions 4 are configured to move in the front - rear direction together with the seat portion 2 in conjunction with the reclining operation of the backrest portion 3.

[0189] The armrest portion 4 is a plate-shaped member arranged to stand upright in the vertical direction. The armrest portion 4 can support the elbows of the user sitting on the seat portion 2. Note that the upper surface of the armrest portion 4 may be formed substantially horizontally so that the elbows can be easily placed thereon.

[0190] Specifically, the armrest portions 4 are respectively attached to both the left and right sides of the moving frame 11 and move in the front-rear direction together with the moving frame 11. The front side of the armrest portion 4 is attached to the support plate 15. The support plate 15 is provided at the front end of the front-rear bar 12a of the seat frame body 12 that constitutes the moving frame 11.

[0191] The rear side of the armrest portion 4 is attached to the support plate 16. The support plate 16 is provided on the upper side of the rear end of the front-rear bar 12a of the seat frame body 12 that constitutes the moving frame 11. Also, the support plate 16 is provided in front of the front vertical bar 13a and below the bent portion.

[0192] A lower drawer member 41 is arranged at the lower part of the armrest portion 4. The lower drawer member 41 is a bar that is long in the front-rear direction and follows the movement of the armrest portion 4 in the front-rear direction. A roller body 42 is provided at the lower front side of the armrest portion 4.

[0193] This roller body 42 is arranged at the front end of the lower drawer member 41 and is a wheel that can roll in the front-rear direction. The roller body 42 rolls due to the movement of the armrest portion 4 in the front-rear direction. Due to the roller body 42, the armrest portion 4 moves smoothly in the front-rear direction.

[0194] That is, the armrest portion 4 is fixed to the moving frame 11 via the support plate 15 and the support plate 16. The armrest portion 4 moves in the same front-rear direction along with the front-rear slide of the seat portion 2 (moving frame 11).

[0195] Furthermore, the armrest portion 4 moves in the front-rear direction together with the seat portion 2 in conjunction with the reclining operation in which the lower part of the backrest portion 3 moves forward and the upper part inclines backward.

[0196] The armrest part 4 includes a fixed case body 43 (rear case body 43) fixed to the leg body, and a blindfold member 44 movable in the front-rear direction. It has a blindfold member 44 that can move in the front-rear direction.

[0197] The armrest part 4 is movable in the front-rear direction. When the armrest part 4 moves forward, an opening space is formed inside the rear case body 43, and devices such as the interlocking mechanism 8 can be seen.

[0198] On the other hand, when the armrest part 4 moves backward, the opening space formed by the forward movement is blocked. Due to the backward movement of the armrest part 4, there is a possibility that foreign objects may enter and be pinched in the opening space, which is not preferable.

[0199] Therefore, in this embodiment, a blindfold member 44 is provided inside the rear case body 43. The blindfold member 44 prevents the pinching of foreign objects due to the closing of the opening space formed by the forward movement when the armrest part 4 moves backward. Also, when the armrest part 4 moves forward, the blindfold member 44 covers the opening space to prevent the interior of the armrest part 4 from being visible and improve the appearance. The blindfold member 44 has a structure in which a plurality of plates overlap like a folding screen and the plates gradually slide forward. By the sliding of the plurality of plate materials in the front-rear direction, the opening space is covered. In this embodiment, the blindfold member 44 has a sliding structure like a folding screen composed of three plate materials.

[0200] The blindfold member 44 is composed of a front sliding plate material 44a, an intermediate sliding plate material 44b, and a rear sliding plate material 44c. The rear sliding plate material 44c is larger than the intermediate sliding plate material 44b and the front sliding plate material 44a, that is, it is sized to cover those two plate materials.

[0201] The intermediate sliding plate material 44b is larger than the front sliding plate material 44a, that is, it is sized to cover the front sliding plate material 44a. That is, the front sliding plate material 44a is the smallest among the three plate materials.

[0202] A slide piece 45a is provided at the lower part of the front slide plate material 44a. The slide piece 45a is slidably fitted into the front and rear rail 46 in the front - rear direction.

[0203] A slide piece 45b is provided at the lower part of the middle slide plate material 44b. The slide piece 45b is slidably fitted into the front and rear rail 46 in the front - rear direction. The slide piece 45b is provided outside the slide piece 45a in the left - right direction so as to overlap when being stored.

[0204] A slide piece 45c is provided at the lower part of the rear slide plate material 44c. The slide piece 45c is slidably fitted into the front and rear rail 46 in the front - rear direction. The slide piece 45c is provided outside the slide piece 45b in the left - right direction so as to overlap when being stored.

[0205] The front - rear rail 46 is provided at the lower part (bottom bar 10a) of the fixed frame 10. Three rails are provided on this front - rear rail 46, into which the slide piece 45a, the slide piece 45b, and the slide piece 45c are respectively slidably fitted in the front - rear direction.

[0206] Thus, the front slide plate material 44a can be retracted from and extended to the middle slide plate material 44b, and the middle slide plate material 44b can be retracted from and extended to the rear slide plate material 44c, forming a configuration like a folding screen.

[0207] The blind - fold member 44 of this embodiment closes the opening space formed inside the rear case body 43 by the slide plate materials 44a - 44c guided in the front - rear direction by the front - rear rail 46, preventing pinching such as of hands and preventing the inside of the arm - rest part 4 from being visible, thus improving the appearance.

[0208] Inside the rear case body 43 (arm - rest part 4), a telescopic mechanism 47 for supporting the three blind - fold members 44 so as to be movable in the front - rear direction is provided. The telescopic mechanism 47 is of the accordion type. A pair of left - right telescopic mechanisms 47 are provided. Also, two telescopic mechanisms 47 are provided vertically.

[0209] When in the sofa mode (when retracted), the telescopic mechanism 47 has a diamond shape that is vertically elongated, and when switching to the lounge mode, the diamond shape becomes horizontally elongated, having an accordion - type configuration.

[0210] The telescopic mechanism 47 has arm members 48 arranged in a cross - shape, support members 49 that rotatably support the arm members 48, and connecting members 50 that connect the plurality of arm members 48. The telescopic mechanism 47 can be telescoped in the front - rear direction by the proximity and separation of the arm members 48 arranged in a cross - shape.

[0211] The tips of the respective arm members 48 are rotatably connected via the connecting member 50. Among the arm members 48, there are long ones and short ones. In order from the front side of the telescopic mechanism 47, there are a short arm member 48a, a long arm member 48b, a long arm member 48c, and a short arm member 48d.

[0212] A support member 49a is provided on the front slide plate material 44a that constitutes the blind - fold member 44. A support member 49b is provided on the intermediate slide plate material 44b. A support member 49c is provided on the rear slide plate material 44c. A support member 49d is provided on the rear case body 43.

[0213] The front ends of the two short arm members 48a are rotatably supported by the support member 49a provided on the front slide plate material 44a. The rear ends of each of these two short arm members 48a are rotatably supported by the tip of the long arm member 48b via the connecting member 50a.

[0214] The middle portions in the longitudinal direction of the two long arm members 48b are arranged in a cross - shape and are rotatably supported by the support member 49b provided on the intermediate slide plate material 44b. The rear ends of each of these two long arm members 48b are rotatably supported by the tip of the long arm member 48c via the connecting member 50b.

[0215] The middle portions in the longitudinal direction of the two long arm members 48c are arranged in a cross shape and are rotatably supported by a support member 49c provided on the rear slide plate member 44c. The rear end of each of the two long arm members 48c is rotatably supported by a connecting member 50c at the tip of a short arm member 48d arranged on the rear side.

[0216] The rear ends of the two short arm members 48d arranged on the rear side are rotatably supported by a support member 49d provided on the rear case body 43.

[0217] As shown in FIGS. 2A to 3D, FIG. 5A, etc., the front slide plate member 44a of the present embodiment is provided with a notch portion 51 for avoiding the first shaft 18. A pair of left and right notch portions 51 are provided. The opening width of the notch portion 51 is larger than the outer diameter of the first shaft 18. The notch portion 51 is provided in parallel with the rear of the long groove 21 of the reclining mechanism 6.

[0218] For example, when the guide body 23 moves in the long groove 21 in the rearward and obliquely upward direction, the first slider portion 20 moves on the first guide rail 19 from the rear lower side to the front upper side. At this time, the first shaft 18 moves upward within the notch portion 51 in a manner similar to the movement of the guide body 23 in the long groove 21. [Operating Mode] Next, the operating mode of the chair-type massager 1 (chair 1) of the present invention will be described with reference to the drawings. [Sofa Mode] As shown in FIGS. 2A, 3A, 4, etc., by the reclining mechanism 6, the lower part of the backrest portion 3 is housed in the leg body 5. Also, the lower guide body 23a is located at the lower end of the lower groove portion 21a. Further, by the slide mechanism 7, the seat portion 2 is in a state of having moved rearward. This state is the sofa mode (basic position) of the chair-type massager 1 (chair 1).

[0219] Drive the drive unit 29 of the elevating mechanism 28. The drive motor 33 drives and outputs a rotational driving force. The rotational driving force is transmitted to the rotary drive shaft 30 via the gear case 34. The rotary drive shaft 30 rotates by the rotational driving force. [Switch from sofa mode to comfort mode] As shown in FIGS. 2B, 3B, 4, 5A, 5B, etc., the pinion gear 32 attached to the rotary drive shaft 30 runs up the rack gear 31. That is, the lower guide body 23a and the upper guide body 23b rise along the lower groove portion 21a.

[0220] The reclining mechanism 6 raises the backrest frame 14 (backrest portion 3). Also, the driving force of the reclining mechanism 6 is used as the driving force of the slide mechanism 7 by the linkage mechanism 8. When the slide mechanism 7 is driven, the moving frame 11 (seat portion 2 and armrest portion 4) slides forward from the position (i) in FIG. 3A to the position (ii) in FIG. 3B.

[0221] Since the long groove 21 (guide plate 22) of the reclining mechanism 6 is attached to the moving frame 11 that can move in the front-rear direction, the slide mechanism 7 is reclined by the linkage mechanism 8 and interlocks with the mechanism 6. That is, the moving frame 11 and the backrest frame 14 are interlocked by the linkage mechanism 8 and can move in the front-rear direction.

[0222] In the linkage mechanism 8, via the first shaft 18, the first slider portion 20 (tilting slider portion 20) connected to the backrest frame 14 moves obliquely forward upward (diagonally) from the rear lower side to the front upper side along the first guide rail 19 (tilting rail 19) provided in a state of being obliquely forward upward (diagonally) with respect to the fixed frame 10 simultaneously with the raising of the backrest portion 3.

[0223] When the first slider portion 20 moves obliquely forward upward along the first guide rail 19, the upward component (z-direction component) of the backrest frame 14 is resolved into a forward movement component (x-direction component) of the moving frame 11. Thereby, the moving frame 11 including the seat portion 2 and the armrest portion 4 moves forward.

[0224] The moving frame 11 is guided straight forward by a second slider portion 38 (horizontal slider portion 38) that moves on a second guide rail 37 (horizontal rail 37) and a slide bar 39 that moves in a guide groove 40. The seat portion 2 slides forward as the backrest portion 3 moves forward. [Comfort mode] As shown in FIGS. 2C, 3C, 4, 5A, 5B, etc., a pinion gear 32 attached to the rotary drive shaft 30 drives up the rack gear 31. The lower guide body 23a rises along the lower groove portion 21a. The upper guide body 23b rises along the lower groove portion 21a and reaches the upper end of the lower groove portion 21a.

[0225] By the reclining mechanism 6, the backrest frame 14 (backrest portion 3) further rises. The driving force of this reclining mechanism 6 is divided by the interlocking mechanism 8 and used as the driving force of the slide mechanism 7.

[0226] In the interlocking mechanism 8, a first slider portion 20 (tilt slider portion 20) connected to the backrest frame 14 via a first shaft 18 moves further in an obliquely forward and upward direction along a first guide rail 19 (tilt rail 19) provided on the fixed frame 10 simultaneously with the further rise of the backrest portion 3.

[0227] That is, the rising component (z-direction component) of the backrest frame 14 is divided into a forward movement component (x-direction component) of the moving frame 11, which becomes the driving force of the slide mechanism 7.

[0228] When the slide mechanism 7 is driven, the moving frame 11 is guided straight forward by a second slider portion 38 (horizontal slider portion 38) that moves on a second guide rail 37 (horizontal rail 37) and a slide bar 39 that moves in a guide groove 40. Also, the backrest frame 14 (backrest portion 3) moves forward by the interlocking mechanism 8.

[0229] The moving frame 11 including the seat part 2 and the armrest part 4 slides forward from the position (ii) in Fig. 3B to the position (iii) in Fig. 3C.

[0230] When the reclining mechanism 6 positions the upper guide body 23b at the part where it switches from the lower groove part 21a to the upper groove part 21b, the backrest part 3 rises to the highest level, and with the slide mechanism 7, the seat part 2 is in a state of moving forward. The state where the backrest part 3 protrudes most upward can be used as the comfort mode to use the chair-type massager 1. [Lounge mode] As shown in Fig. 2D, Fig. 3D, Fig. 4, Fig. 5A, Fig. 5B, etc., the pinion gear 32 attached to the rotary drive shaft 30 runs up to the upper end of the rack gear 31. The lower guide body 23a further rises along the lower groove part 21a. The upper guide body 23b rises along the upper groove part 21b and reaches the upper end of the upper groove part 21b.

[0231] With the reclining mechanism 6, the backrest frame 14 (backrest part 3) performs a reclining operation of tilting backward. The driving force of this reclining mechanism 6 is divided by the interlocking mechanism 8 and used as the driving force of the slide mechanism 7.

[0232] In the interlocking mechanism 8, the first slider part 20 (tilting slider part 20) connected to the backrest frame 14 via the first shaft 18 moves further in the diagonally forward and upward direction along the first guide rail 19 (tilting rail 19) provided on the fixed frame 10 simultaneously with the reclining operation of the backrest part 3 and reaches the upper end of the first guide rail 19.

[0233] That is, the rising component (z-direction component) of the backrest frame 14 is divided into the forward movement component (x-direction component) of the moving frame 11 and becomes the driving force of the slide mechanism 7.

[0234] When the slide mechanism 7 is driven, the moving frame 11 is further guided straight forward by a second slider portion 38 (horizontal slider portion 38) that moves on a second guide rail 37 (horizontal rail 37) and a slide bar 39 that moves in a guide groove 40. Further, the backrest frame 14 (backrest portion 3) moves further forward by an interlocking mechanism 8.

[0235] The moving frame 11 having the seat portion 2 and the armrest portion 4 slides forward from the position (iii) in FIG. 3C to the position (iv) in FIG. 3D.

[0236] When the upper guide body 23b is positioned at the upper end (diagonal rear upper end) of the upper groove portion 21b by the reclining mechanism 6, the backrest portion 3 reclines backward and reclines, and by the slide mechanism 7, the seat portion 2 is in a lounge mode (reclining position) where it moves further forward than the comfort mode.

[0237] Here, the reclining operation of the backrest portion 3 when installed near the wall W described above is an important and characteristic operation in the present invention, so it will be described in detail again.

[0238] Even when the chair-type massage machine 1 of the present embodiment has to be installed in a state where there is almost no space between the back surface of the backrest portion 3 and the wall W of the room due to various situations such as the size of the room, the reclining operation of the backrest portion 3 is possible (see FIG. 1 etc.).

[0239] The chair-type massage machine 1 of the present embodiment has a configuration in which a backrest frame 14 is mounted on a moving frame 11, and also has a configuration in which the reclining mechanism 6 and the slide mechanism 7 are interlocked by an interlocking mechanism 8.

[0240] When the chair-type massage machine 1 has the above configuration, when reclining the backrest portion 3, the interlocking mechanism 8 diverts the driving force of the reclining mechanism 6 to the sliding mechanism 7, so that the moving frame 11 slides forward. As the moving frame 11 slides, the backrest frame 14 moves forward while performing a reclining operation.

[0241] Due to such an interlocking mechanism 8 during the reclining operation of the backrest portion 3, as the seat portion 2 slides forward, the backrest portion 3 moves forward in an interlocking operation. As a result, the backrest portion 3 descends without contacting the wall W of the room. Therefore, for example, when installing the chair-type massage machine 1, even if the distance between the wall W of the room and the back surface of the backrest portion 3 can only be opened by several centimeters, the backrest portion 3 can be smoothly reclined (so-called zero wall can be realized).

[0242] According to the chair-type massage machine 1 (chair 1) of the present invention described in detail above, the reclining operation of the backrest portion 3 by the reclining mechanism 6 and the sliding operation of the seat portion 2 in the front-rear direction by the sliding mechanism 7 are smoothly interlocked by the interlocking mechanism 8. When installed near the wall of the room, even if the distance between the wall W of the room and the back surface of the backrest portion 3 is small, the backrest portion 3 can be smoothly reclined.

[0243] Now, the chair-type massage machine 1 of the present embodiment can connect a plurality of the same shape by the connecting unit 52.

[0244] FIG. 6 is a perspective view of a composite chair 54 in which the chair-type massage machine 1 of the present embodiment and a chair 53 having the same shape as the chair-type massage machine 1 are connected using the connecting unit 52. FIG. 7 is an exploded view of the composite chair 54 in which the chair-type massage machine 1 of the present embodiment and a chair 53 having the same shape as the chair-type massage machine 1 are connected using the connecting unit 52.

[0245] The chair - type massage machine 1 (chair 1) of the present embodiment described in detail above can be configured such that at least two or more chair - type massage machines 1 or chairs 53 of the same shape are connected in the left - right direction by sandwiching a connection unit 52 to form a composite chair 54.

[0246] As shown in FIGS. 6 and 7, in the present embodiment, a composite chair 54 is formed by arranging the chair - type massage machine 1 on the right side of the connection unit 52 and the chair 53 on the left side.

[0247] The connection unit 52 of the present embodiment has an appearance that is substantially chair - shaped. Also, the connection unit 52 has a hollow housing inside. The width of the connection unit 52 is about 1 / 3 of the width of the chair - type massage machine 1. Note that the shape and dimensions of the connection unit 52 can be arbitrarily set.

[0248] Regarding the configuration of the connection unit 52 of the present embodiment, the portion aligned with the seat part 2 during connection is defined as the horizontal part 55, and the portion aligned with the backrest part 3 is defined as the vertical part 56.

[0249] The upper surface of the horizontal part 55 of the connection unit 52 is flush with the upper surface of the seat part 2. That is, the height of the horizontal part 55 from the floor surface F is the same as the height of the seat part 2 from the floor surface F. Also, the front vertical surface of the horizontal part 55 is flush with the front vertical surface of the chair - type massage machine 1 (the bottom surface of the footrest 9 during storage) in the sofa mode.

[0250] A recess 55a is provided in the horizontal part 55 at a position slightly below the upper surface. The convex part 58a of the side plate member 58 fits into the recess 55a during backward sliding, smoothly storing the side plate member 58.

[0251] On the left and right sides of the lower part of the horizontal portion 55, there are connecting portions 57 that enable the connection of the chair-type massager 1 or a chair 53 of the same shape. In the present embodiment, the connecting portion 57 has a pin 57a provided on the left and right sides of the lower part of the horizontal portion 55, and a hole portion 57b provided on the bottom bar 10a of the fixed frame 10 into which the pin 57a fits. This connecting portion 57 is configured such that it can be easily fitted when connecting the chair-type massager 1 or the like, and does not easily come off after the connection.

[0252] Also, on the left and right sides of the horizontal portion 55, side plates 58 are arranged to be slidable in the front-rear direction. The side plates 58 are connected to the side surface side of the moving frame 11 in place of the armrest portions 4. The side plates 58 move together with the seat portion 2 as the moving frame 11 slides in the front-rear direction.

[0253] For example, in the case of the chair-type massager 1 arranged on the right side, the side plate 58 is arranged in place of the left armrest portion 4. Also, the side plate 58 is arranged in front of the rear case body 43. The amount of sliding forward of the side plate 58 is the same as the amount of sliding forward of the armrest portion 4.

[0254] Specifically, the side plate 58 is supported by a support plate 15 provided at the front end of the right moving frame 11 (front-rear bar 12a) and a support plate 16 provided at the rear end of the right moving frame 11 (front-rear bar 12a).

[0255] The upper surface of the side plate 58 is flush with the upper surface of the seat portion 2. That is, the height of the side plate 58 from the floor surface F is the same as the height of the seat portion 2 from the floor surface F. Also, the front vertical surface of the side plate 58 is flush with the front vertical surface of the chair-type massager 1 (the bottom surface of the footrest 9 at the time of storage) in the sofa mode.

[0256] Since the side plate 58 is housed in the horizontal portion 55, a convex portion 58a is provided at a position slightly below the upper surface. The convex portion 58a fits into a concave portion 55a provided in the horizontal portion 55 when sliding backward, so that the side plate 58 is smoothly housed.

[0257] At the lower part of the side plate member 58, a notch portion 58b for avoiding the connecting portion 57 during sliding is provided. The notch portion 58b is formed from the middle part in the front-rear direction toward the rear.

[0258] In the case of the chair 53 arranged on the left side, the side plate member 58 is arranged instead of the armrest portion on the right side of the chair 53. The side plate member 58 arranged on the chair 53 is fixed to the frame of the chair 53 and does not slide in the front-rear direction.

[0259] Also, the vertical portion 56 of the connecting unit 52 is flush with the front surface of the backrest portion 3. The height of the vertical portion 56 is substantially the same as the height of the backrest portion 3 of the chair-type massager 1 in the sofa mode.

[0260] The connecting unit 52 may have the vertical portion 56 in a flip-up type. By providing a hinge portion 59 at the portion where the horizontal portion 55 and the vertical portion 56 are joined, if the vertical portion 56 is laid down to overlap the horizontal portion 55, it becomes an armrest. Also, if the vertical portion 56 is flipped up to be flush with the front surface of the backrest 3, it becomes a long sofa shape on the left and right.

[0261] Also, a small item storage may be provided inside the connecting unit 52. Further, the connecting unit 52 may have a strength that allows sitting and a cushioning material, etc.

[0262] As described above, when using the connecting unit 52, a plurality of chair-type massagers 1 of the present embodiment can be connected.

[0263] For example, as shown in FIGS. 6 and 7, one chair-type massager 1 of the present embodiment and one chair 53 having the same shape as the chair-type massager 1 are prepared, and the connecting unit 52 can be sandwiched and connected between the chair-type massager 1 and the chair 53.

[0264] Further, two chair-type massagers 1 of the present embodiment can be prepared, and a connecting unit 52 can be sandwiched and connected between these chair-type massagers 1.

[0265] Furthermore, it is also possible to use two connecting units 52. For example, three chair-type massagers 1 of the present embodiment can be prepared, and a connecting unit 52 can be sandwiched and connected between each of these chair-type massagers 1.

[0266] Also, two chair-type massagers 1 of the present embodiment and one chair 53 having the same shape as the chair-type massager 1 can be prepared. The chair 53 can be installed between the two prepared chair-type massagers 1, and they can be connected by a connecting unit 52.

[0267] In this way, by using the connecting unit 52, it becomes possible to connect at least two or more of the chair-type massagers 1 and chairs 53 of the present embodiment in the left-right direction, and a composite chair 54 (a sofa-shaped chair 54 that is long in the left-right direction) of a desired size can be realized.

[0268] It should be noted that the embodiments disclosed this time should be considered as illustrative in all respects and not restrictive. In particular, in the embodiments disclosed this time, matters not explicitly stated, such as operating conditions, operating conditions, dimensions of components, weights, etc., do not deviate from the scope normally implemented by those skilled in the art, and those skilled in the art can easily assume matters that can be adopted. Although not shown in the drawings, for example, the length of the kneading arm provided in the massage mechanism built into the chair-type massager 1, the inclination angle with respect to the rotation drive shaft of the kneading arm, the separation distance between the left and right kneading arms, etc. can be appropriately changed in view of the treatment range.

Explanation of Reference Numerals

[0269] 1 Chair-type massager (chair) 2 Seat 3 Backrest 4 Armrest 5 Leg body 6 Reclining mechanism 7 Slide mechanism 8 Interlocking mechanism 10 Fixed frame (basic frame) 10eR Upper bar on the right side (second guide rail) 10eL Upper bar on the left side (second guide rail) 10fR Central bar on the right side (first guide rail) 10fL Central bar on the left side (first guide rail) 11 Moving frame 12 Seat frame body 13 Support frame body 14 Backrest frame 14c Sub-bar 14d Rear bar 18 First shaft 19 First guide rail (inclined rail) 20 First slider part (inclined slider part) 21 Long groove 21a Lower groove part 21b Upper groove part 22 Guide plate 23 Guide body 23a Lower guide body 23b Upper guide body 24 Third shaft 28 Lifting mechanism 29 Driving part 30 Rotational drive shaft 31 Rack gear 32 Pinion gear 33 Driving motor 36 Second shaft 37 Second guide rail 38 Second slider part 39 Slide bar 40 Guide groove 43 Fixed case body (rear case body) 44 Covering member 44a Front slide plate material 44b Intermediate slide plate material 44c Rear slide plate material 47 Telescoping mechanism 48 Arm member 49 Support member 50 Connecting member 52 Connecting unit 53 Chair 54 Composite chair 55 Horizontal part 56 Vertical part 58 Side plate material F Floor surface W Wall

Claims

1. a seat portion on which a user can sit, a backrest portion provided at the rear of the seat portion, legs that support the seat portion and the backrest portion, a reclining mechanism that reclines the backrest portion, a slide mechanism that slides the backrest portion and the seat portion in the front - rear direction, and a linkage mechanism that interlocks the reclining mechanism and the slide mechanism, characterized by a chair having the above features.

2. The legs include a fixed frame installed on the floor surface, and a moving frame on which the seat portion and the backrest portion are mounted and which is slidable in the front - rear direction with respect to the fixed frame. The moving frame mounts a backrest frame that supports the backrest portion in a reclinable manner and the seat portion. The moving frame is slidable in the front - rear direction with respect to the fixed frame by the slide mechanism. The chair according to claim 1, characterized by the above features.

3. The linkage mechanism is a mechanism that interlocks the reclining operation of the backrest frame by the reclining mechanism and the sliding operation of the moving frame in the front - rear direction by the slide mechanism. The chair according to claim 2, characterized by the above features.

4. The linkage mechanism is configured to interlock the slide mechanism and slide the moving frame in the front - rear direction using the driving force output from the lifting mechanism that constitutes the reclining mechanism and that reclines the backrest portion. The chair according to claim 3, characterized by the above features.

5. The linkage mechanism includes a first shaft provided at the lower part of the backrest frame, a first guide rail provided on the fixed frame in an upward - sloping state from the rear - lower side to the front - upper side, and a first slider portion attached to the first shaft and moving obliquely on the first guide rail. The chair according to claim 4, characterized by the above features.

6. The linkage mechanism includes when the first slider moves on the first guide rail in an upward - sloping state, a force component directed forward or backward is generated from the upward or downward movement of the backrest frame, the generated force component directed forward or backward is transmitted to the first shaft to which the first slider is attached, and the moving frame is moved forward or backward via the backrest frame. The chair according to claim 5, characterized in that...

7. The reclining mechanism raises the backrest portion upward, The reclining mechanism, is provided on the seat portion and has a guide plate in which a long groove extending in the vertical direction is formed, and a guide body that is rotatably fitted into the long groove and guided along the long groove, and the backrest frame and the moving frame are connected via the reclining mechanism. The chair according to claim 6, characterized in that...

8. The reclining mechanism raises the backrest portion upward and reclines the raised backrest portion backward, The long groove has a shape in which the upper portion curves backward, The long groove includes a lower groove portion that extends obliquely rearward along the vertical direction and an upper groove portion that is connected to the upper side of the lower groove portion and is more reclined backward than the lower groove portion, a rack gear is provided in the long groove, at least two or more guide bodies are provided above and below the long groove, one of the guide bodies is movable from the lower groove portion to the upper groove portion, the other guide body is provided with a pinion gear that meshes with the rack gear and is movable in the lower groove portion. The chair according to claim 7, characterized in that...

9. The slide mechanism, includes a second shaft provided on the moving frame, a second guide rail provided on the fixed frame in the front-rear direction, and a second slider portion attached to the second shaft and moving the second guide rail in the front-rear direction. The chair according to claim 8, characterized in that...

10. The slide mechanism, includes a slide bar provided on the moving frame so as to be parallel to the second guide rail and sliding with the forward and backward movement of the moving frame, and a guide groove provided on the fixed frame and guiding the slide bar in the front-rear direction. The chair according to claim 9, characterized in that...

11. Armrest portions are provided on the left and right sides of the seat portion, respectively, and the armrest portions are configured to move in the front-rear direction together with the seat portion in conjunction with the reclining operation of the backrest portion. The chair according to claim 1, characterized in that...

12. The armrest parts are respectively attached to both the left and right sides of the moving frame and move in the front-rear direction together with the moving frame. The chair according to claim 11, characterized in that.

13. The chair according to any one of claims 1 to 12, characterized in that a massage mechanism for massaging the treatment part of the user is built in the backrest part and / or the seat part.

14. A composite chair characterized in that at least two or more chairs according to any one of claims 1 to 13 are connected in the left-right direction by sandwiching a connecting unit.

15. The connecting unit is provided such that the side plates of the connecting unit are slidable in the front-rear direction, and the side plates are connected to the moving frame. The composite chair according to claim 14, characterized in that.

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