JP2011067327A - Chair type massage machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a chair type massage machine in which a footrest part body is turned always in conjunction with tilt of a backrest part, the massage machine allowing the footrest part body to be optionally turned. <P>SOLUTION: The chair type massage machine includes: a seat part on which a user sits down; a treating part for massaging the user; the backrest part tiltably provided at the back of the seat part; the footrest part vertically turnably provided in a front part of the seat ; and an interlocking member for turning the leg mounting part interlocked with the tilt of the backrest part. The footrest part has a footrest part body vertically turnably provided in the front part of the seat part and a turning drive part vertically rockably provided between the interlocking member and the footrest part body. The footrest part is turnable interlocked with the tilt of the backrest part via the interlocking member and the tuning drive part changes positions of the footrest part with respect to the interlocking member to turn the footrest part body. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a chair type massage machine provided with a leg rest at the front of a seat.

  Conventionally, a seat portion on which a user is seated and a backrest portion provided at the rear portion of the seat portion so as to be tiltable are provided, and a leg rest main body provided at the front portion of the seat portion is tilted to the backrest portion. There is a chair-type massage machine that can be rotated in conjunction with it. By interlocking the tilting of the backrest and the rotation of the leg rest main body, the leg rest main body is lowered when the back rest is raised in the forward direction, and the back rest is moved to the rear. In the state of being tilted in the direction, the leg rest main body is in a raised state.

  However, when the leg rest main body rotates in conjunction with the tilting of the backrest, the backrest and the leg rest main body cannot be operated individually, so it is difficult to say that the user has good usability. there were. In order to solve this problem, for example, there are methods disclosed in Patent Documents 1 to 3.

  Patent Document 1 proposes a reclining chair provided with connection means capable of selectively switching between the interlocking state and the non-interlocking state of the backrest part and the leg rest main body and the releasing means for releasing the interlocking state. The reclining chair is in an interlocking state in which the frame of the backrest part and the connecting member connected to the leg resting part main body are engaged by the engaging member, and the leg resting part main body is connected to the backrest part via the connecting member. It can be rotated by tilting. Further, in the non-interlocking state in which this engagement is released, the legrest main body does not rotate due to the tilting of the backrest part, so that only the backrest part can be tilted. Therefore, the interlocking state and the non-interlocking state can be switched.

  Patent Document 2 discloses a massage provided with a first link member connected to a backrest portion and freely rotatable forward and a ratchet mechanism provided at a hinge portion between the leg rest body and the seat portion. A machine has been proposed. The massage machine can turn the leg rest main body in conjunction with the backrest via the first link member, and can manually lift the leg rest main body. Further, since the ratchet mechanism can lock the rotation of the leg rest part body relative to the seat part, the leg rest part body can be raised while the backrest part is raised in the forward direction. I can do it.

  Further, Patent Document 3 proposes a leg rest main body that is divided into a first foot rest that is interlocked with the tilting of the backrest portion and a second foot rest that is interlocked with the push and pull of the manual lever. Yes. The first footrest can be lifted in conjunction with the tilting of the backrest by a first link mechanism interposed between the backrest and the first footrest. Furthermore, the second footrest can be raised in conjunction with the push and pull of the manual lever by the second link mechanism connected to the manual lever. Therefore, this leg rest part main body can be made into the state which has raised a part (2nd footrest stand) of the leg rest part main body in the state which the backrest part has raised in the front direction.

Japanese Patent No.2643844 JP 2000-23773 Japanese Patent Laid-Open No. 2001-128770

  However, the reclining chair disclosed in Patent Document 1 can tilt the backrest portion in the non-interlocking state, but cannot rotate the leg rest portion main body. Therefore, in order to rotate the leg rest part body, a complicated operation such as raising the back part forward and connecting the back rest part and the leg rest part body is necessary, and it is difficult to say that it is easy to use. Met. Further, there is a problem that the structure becomes complicated by providing a connecting means for switching between the interlocking state and the non-interlocking state of the backrest part and the leg rest main body and a releasing means for releasing the interlocking state. In addition, although it is possible to mount a motor further as a drive source which rotates a leg mounting part main body, it is thought that a problem arises in terms of size reduction and weight reduction of a chair type massage machine main body.

  Further, the massage machine disclosed in Patent Document 2 is locked when the leg rest main body is raised by the ratchet mechanism, and when the rotation of the leg rest main body with respect to the seat is stopped, the backrest portion is The leg rest main body can be raised while standing in the forward direction, but the leg rest main body cannot be rotated in conjunction with the tilting of the backrest. Therefore, in order to rotate the leg rest main body in conjunction with the tilting of the backrest, an operation for releasing the lock is necessary. In particular, in order to release the lock, the leg rest main body that is locked in the raised state must be lifted again and raised to a predetermined angle or more. It was difficult for the user to say that it was easy to use because it was troublesome to operate while lifting the foot or lifting its own foot from the leg rest main body.

  Moreover, when the legrest part main body disclosed by patent document 3 raises a legrest part main body in the state which the backrest part has raised in the front direction, a part (1st footrest base) of a legrest part main body. Cannot be raised. Furthermore, compared to the case where the user's foot is supported by the leg rest main body, when the user's foot is supported by a part of the leg rest main body (second foot rest), There was a risk that the area would be reduced and the user's feet would be burdened and hindered from relaxing. Moreover, the structure of the leg rest main body is complicated by providing the leg rest main body in a portion that interlocks with the tilting of the backrest portion and a portion interlocked with the push and pull of the manual lever.

  Therefore, in the chair type massage machine, the leg rest main body can always rotate in conjunction with the tilting of the backrest, and there is no need to provide the connecting means as described above, and the leg rest main body can be rotated arbitrarily. It is desirable that it can be moved. The present invention has been made in view of such circumstances, and the leg rest main body can be rotated in conjunction with the tilting of the backrest, and the leg rest main body can be arbitrarily rotated. The object is to provide a chair-type massage machine that can be used.

  The present invention employs the following means in order to solve the above problems. That is, in the present invention, a seat portion on which a user is seated, a treatment portion that performs a massage operation on the user, a backrest portion that is tiltably provided at a rear portion of the seat portion, and a front portion of the seat portion A leg rest that is pivotable in the vertical direction, and an interlocking member that pivots the leg rest in conjunction with the tilting of the backrest, the leg rest being the seat A leg rest main body provided to be pivotable in the vertical direction at the front part of the head, and a pivot drive part disposed between the interlocking member and the leg rest main body so as to be swingable in the vertical direction. The leg rest can be rotated in conjunction with the tilting of the backrest via the interlocking member, and the pivot drive portion of the leg rest main body with respect to the interlocking member A chair type massage machine configured to rotate the leg rest main body by changing the position. .

  By setting it as such a structure, the leg mounting part which has a leg mounting part main body and a rotation drive part can always rotate in response to tilting of a backrest part via an interlocking member. Further, the rotation driving unit can arbitrarily rotate the leg mounting unit body by changing the position of the leg mounting unit body with respect to the interlocking member. Therefore, unlike the case of providing connection means as in the prior art, the leg rest main body can always rotate in conjunction with the tilting of the backrest, and the leg rest main body can be arbitrarily rotated. it can.

  The interlocking member has one end pivotably connected to the backrest portion and the other end pivotally connected to the rotation driving portion so as to be swingable. It is preferable that the drive unit is configured to be rocked in conjunction with the tilting of the backrest part via the interlocking member, and to be in contact with the leg rest part body to rotate the leg rest part body.

With such a configuration, the rotation drive unit can swing in conjunction with the tilting of the backrest part via the interlocking member, and the legrest main body rotates as the rotation drive unit swings. Can move. Therefore, the leg rest part main body can always rotate in conjunction with the tilting of the backrest part, and the leg rest part main body can be arbitrarily rotated. In addition, since the rotation drive unit changes the position of the leg rest part body relative to the interlocking member that swings due to the tilt of the back rest part, for example, when the leg rest part is tilted to raise the leg rest part body, The dynamic drive unit can rotate the leg rest main body with a small driving force.

  The rotation driving unit includes a swinging member connected to the interlocking member so as to be swingable with respect to a seat part, and an air cell supported by the swinging member to expand and contract by air supply / discharge. It is preferable that the position of the leg rest part body with respect to the interlocking member is changed by the expansion and contraction of the air cell to rotate the leg rest part body.

  By adopting such a configuration, for example, it is necessary to further mount a motor as a drive source for rotating the leg rest main body by sharing the pump used for driving the treatment unit provided in the chair type massage machine. The chair-type massage machine body can be reduced in size and weight.

  Moreover, the said leg mounting part main body may be comprised so that separation from the said rotation drive part is possible. With such a configuration, for example, when an object, a person, an animal, or the like is present below the leg rest main body (between the floor), the leg rest main body and the rotational drive section can be separated. Thus, it is possible to prevent pinching when the leg rest portion is lowered.

  According to the present invention, the interlocking member can rotate the legrest portion having the legrest main body and the rotation driving portion in conjunction with the tilting of the backrest portion, and the rotation driving portion interlocks with the rotation. The position of the leg rest main body relative to the member can be changed to rotate the leg rest main body. Accordingly, it is possible to provide a chair type massage machine capable of rotating the leg rest main body in conjunction with the tilting of the backrest portion and capable of arbitrarily rotating the leg rest main body. Is possible.

It is a front perspective view which shows the whole structure of the chair type massage machine which concerns on embodiment. It is a side view which abbreviate | omitted a part of armrest part and seat part of the chair type massage machine shown in FIG. 1, and is a figure explaining the state which the backrest part stood up and the legrest part descended most. It is a side view which abbreviate | omitted a part of armrest part and seat part of the chair type massage machine which concerns on embodiment, and is a figure explaining the state which the backrest part tilted and the legrest part raised most. It is a figure explaining the interlocking state of a backrest part and a legrest part. It is a figure explaining the state which the leg mounting part raised by the rotation drive part. It is a figure explaining the state which the leg mounting part main body of the chair type massage machine shown in FIG. 3 expanded. It is a wiring block diagram of the chair type massage machine concerning an embodiment.

[overall structure]
The whole structure of the chair type massage machine 1 which concerns on embodiment of this invention is demonstrated. FIG. 1 is a perspective view showing an overall configuration of a chair type massage machine 1 according to an embodiment of the present invention, and FIG. 2 omits a part of an armrest and a seat part of the chair type massage machine shown in FIG. It is a side view, and is a figure explaining the state where the backrest part stood up and the leg rest part descended most. FIG. 7 is a wiring block diagram of the chair type massage machine 1.

  The chair-type massage machine 1 includes a seat portion 3 on which a user sits, a backrest portion 4 that supports the user's upper body from behind, an armrest portion 5 that supports the user's arm portion, and the user's head. The pillow part 6 which supports a part from back, and the leg mounting part 7 which supports a user's leg part are comprised mainly. The chair type massage machine 1 is provided with a treatment unit 2 for performing a massage operation on a user's body.

  In the description of the direction in the present application, the front side is “front”, the rear side is “rear”, the left hand side is “left”, and the right hand side is “right” when viewed from the user seated on the seat 3. . Further, the head side of the user seated on the seat portion 3 with the backrest portion 4 raised in the forward direction is “upper”, and the waist side is “lower”.

[Seat]
The structure of the seat part 3 is demonstrated. As shown in FIG. 2, the seat portion 3 is configured such that a cushion portion 32 formed so that the upper surface is used as a seat surface 33 is disposed on the upper portion of the base 31 having the leg portions 30 on both sides of the lower portion. Has been. The cushion portion 32 has an interior material (not shown) made of urethane foam, sponge, or polystyrene foam placed on the upper surface of the base 31, and the seat surface 33 massages the user's buttocks and thighs. A plurality of air cells 23 are provided. These air cells 23 are connected to a later-described air supply / exhaust device 10 by an air hose (not shown), and are configured to expand or contract by the air supply / exhaust from the air supply / exhaust device 10. Thereby, when a user sits on the chair type massage machine 1, the air cell 23 repeats expansion and contraction, thereby applying a pressing stimulus to the user's buttocks and thighs.

  The seat surface 33 and the air cell 23 are covered with an exterior material (not shown) made of a raised tricot made of polyester, synthetic leather, or natural leather. The seat 3 may be supported by the base 31 so as to be swingable, and may be swingable by a seat swinging means (not shown).

  Below the seat surface 33, as shown in FIG. 7, as shown in FIG. 7, the air supply / exhaust device 10 having a pump and a valve for supplying and exhausting air to the treatment unit 2 (air cells 23 to 27), There is provided a control device 11 comprising a CPU, a memory (RAM), and a microcomputer having a storage unit (ROM) for controlling the driving of the tilting drive mechanism 44, the rotation drive mechanism 93) and the air supply / exhaust device 10. The control device 11 is electrically connected to an operation device 12 operated by a user, and based on an input signal input from the operation device 12, each drive mechanism (tilt drive mechanism 44, rotation drive mechanism 93). ) And an output signal for driving and controlling the air supply / exhaust device 10.

[Backrest]
The structure of the backrest part 4 is demonstrated. The backrest part 4 is configured by arranging a cushion or the like on the back frame 40, and when an adult of a general physique sits on the seat surface 33 to support the upper body of the user, the body of the adult Is a size that does not protrude from the outside, and has a substantially rectangular shape when viewed from the front.

  Inside the backrest 4 is provided a massager 20 that can be moved up and down by a lifting unit, and can perform a massage operation by applying mechanical stimulation to the shoulder, back, waist, etc. of the user. The massage device 20 includes a plurality of treatment elements (refer to FIG. 2), and is configured to transmit the rolling power of a massage motor (not shown) to the treatment element so that the massage element can be operated and beaten. Yes. Moreover, the backrest part 4 may be provided with a plurality of air cells 24 for massaging the upper body of the user. These air cells 24 (see FIG. 7) are connected to the air supply / exhaust device 10 by an air hose (not shown), and are configured to expand or contract by the air supply / exhaust from the air supply / exhaust device 10. As a result, when the user sits on the chair type massage machine 1, the air cell 24 repeats expansion and contraction to give a pressing stimulus to the upper body of the user.

  The backrest part 4 can be tilted in the front-rear direction about a lateral tilting shaft 42 provided at the rear part of the seat part 3, and as shown in FIG. 2, the backrest part 4 moves forward. As shown in FIG. 3, the backrest part 4 can be reclined from the raised state (standing state) to the rearwardly tilted state (tilted state), and at any position (angle) with respect to the seat part 3. ) To stop. Tilt of the backrest part 4 is performed by the tilt drive mechanism 44. The tilt drive mechanism 44 is provided between the seat portion 3 and the backrest portion 4, one end 44 a of the tilt drive mechanism 44 is connected to the base 31 of the seat portion 3, and the other end 44 b of the tilt drive mechanism 44 is connected. It is connected to the lower part of the backrest 4 and tilts the backrest 4 in the front-rear direction. For the tilt drive mechanism 44, an actuator such as a gas type or an electric type can be used.

  In addition, as shown in FIG. 2, the chair type massage machine 1 is provided with the front end of the seating surface 33 inclined slightly upward compared to the rear end. Thereby, when sitting on the seating surface 33, the user can sit deeply and relax, and when tilting the backrest 4, the user does not exert excessive force on the abdominal muscles or the waist, It is possible to follow the tilting of the backrest 4 while maintaining a relaxed state.

[Armrest]
As shown in FIG. 1, the armrest portion 5 is provided on both sides of the backrest portion 4 so as to extend forward along the seat portion 3. The arm can be supported. The armrest portion 5 may be provided with a plurality of air cells 25. These air cells are connected to the air supply / exhaust device 10 via an air hose (not shown), and are configured to expand or contract by air supply / exhaust from the air supply / exhaust device 10. Thus, when the user sits on the chair type massage machine 1, the air cell 25 repeats expansion and contraction, thereby giving a pressing stimulus to the user's arm and hand.

[Pillow part]
As shown in FIGS. 1 and 2, the pillow portion 6 is provided at the upper front portion of the backrest portion 4, and can support the head of the user whose upper body is supported by the backrest portion 4 from behind. I can do it. The pillow part 6 may be provided with a plurality of air cells 26. These air cells 26 are connected to the air supply / exhaust device 10 via an air hose (not shown), and are configured to expand or contract by air supply / exhaust from the air supply / exhaust device 10. As a result, when the user sits on the chair type massage machine 1, the air cell 26 repeats expansion and contraction, thereby giving a pressing stimulus to the neck and shoulder of the user.

[Leg mount]
The leg rest part 7 is provided at the front part of the seat part 3 and can support the leg part of the user seated on the seat surface 33. The leg rest portion 7 is provided so as to be pivotable in a substantially vertical direction with respect to the seat portion 3, and as shown in FIG. As shown in FIG. 3, the leg rest 7 can be rotated to the most elevated state (second posture), and the position (angle) relative to the seat 3 can be arbitrarily changed. Further, as will be described in detail later, the leg rest 7 has a leg rest main body 8 and a rotation drive unit 9 and rotates in conjunction with the tilt of the backrest 4 via the interlocking member 46. Is configured to do.

  As shown in FIGS. 2 and 3, the leg rest portion main body 8 includes a leg holding portion 82 that supports a portion from the knee to the foot of the user's leg from the rear and the side. The body part 8 is rotatable in a substantially vertical direction around a horizontal rotation shaft 81 provided at the front upper end of the seat part 3. The leg rest main body 8 can be bent and stretched by changing the bending angle of the knee of the seated user by rotating in the substantially vertical direction.

  As shown in FIGS. 2 and 3, the rotation drive unit 9 is disposed between the leg rest main body 8 and an interlocking member 46 described later, and is provided in the lateral direction provided at the front portion of the seat portion 3. About the swing shaft 91, it can swing substantially in the vertical direction. The rotation drive unit 9 is swung in conjunction with the tilting of the backrest part 4 via one end 46a of the interlocking member 46, and abuts on the rear part of the leg resting part body 8, thereby Can be rotated. Moreover, the rotation drive part 9 is comprised so that the position (angle) of the leg mounting part main body 8 with respect to the interlocking member 46 mentioned later may be changed, and the leg mounting part main body 8 may be arbitrarily rotated to a substantially up-down direction. .

[Interlocking member]
As shown in FIGS. 2 and 3, the chair type massage machine 1 has a long interlocking member 46 in the front and rear direction below the seat surface 33. The interlocking member 46 is interposed between the backrest part 4 and the leg rest part 7 and is configured to rotate the leg rest part 7 in conjunction with the tilting of the backrest part 4. Specifically, in this interlocking member 46, one end 46 a of the interlocking member 46 is rotatably connected to the rotational drive part 9 of the leg rest part 7, and the other end 46 b of the interlocking member 46 is the lower part of the backrest part 4. Is pivotally connected to.

  The interlocking between the tilting of the backrest 4 and the rotation of the leg rest 7 will be described. FIG. 4 is a diagram for explaining an interlocking state between the backrest part 4 and the leg rest part 7, and shows a state in which the backrest part 4 is tilted backward. When the backrest 4 tilts about the tilting shaft 42, the interlocking member 46 swings in the front-rear direction via the other end 46 b of the interlocking member 46 that is rotatably connected to the lower portion of the backrest 4. When the interlocking member 46 swings in the front-rear direction, the rotational drive unit 9 swings in the substantially vertical direction via the one end 46a of the interlocking member 46 that is pivotally connected to the rotational drive unit 9 of the leg rest part 7. Moved. When the rotation drive unit 9 is swung in the substantially vertical direction about the swing shaft 91, the rotation drive unit 9 abuts on the rear portion of the leg mounting unit body 8 and moves the leg mounting unit body 8 substantially vertically. In order to rotate in the direction, the leg rest part main body 8 can rotate around the rotation shaft 81. Therefore, the leg rest part 7 can be rotated in conjunction with the tilting of the backrest part 4.

[Leg rest body]
Next, the leg rest part main body 8 will be described in detail. The leg rest part main body 8 has a leg holding part 82 that supports a part from the knee to the foot of the leg part of the user. The leg holding portion 82 includes an upper leg holding portion 82a corresponding to a calf and a lower leg holding portion 82b corresponding to a portion extending from the user's knee to the ankle and mainly corresponding to the calf. A plurality of air cells 27 are provided. These air cells 27 are connected to the air supply / exhaust device 10 via an air hose (not shown), and are configured to expand or contract by air supply / exhaust from the air supply / exhaust device 10. As a result, when the user sits on the chair type massage machine 1, the air cell 27 repeatedly expands and contracts to give a pressure stimulus to the calf of the user and the back of the foot and the heel. Yes.

  Furthermore, the leg rest part main body 8 has a telescopic mechanism 83. The expansion / contraction mechanism 83 includes a support frame 84 that is rotatable in a substantially vertical direction around a horizontal rotation shaft 81 provided at the front upper end of the seat portion 3, and the support frame 84. A slide member 85 slidably mounted in the length direction of the user's leg is provided. By sliding the slide member 85 with respect to the support frame 84, the expansion / contraction mechanism 83 expands / contracts and changes its length. be able to.

  In the embodiment, two slide members 85 are provided, a first slide member 85a slidably attached to the support frame 84, and a second slide slidably attached to the first slide member. There is a member 85b. Each slide member 85 is configured to slide in conjunction with each other with respect to the support frame 84 by a link mechanism or the like (not shown) and to be positioned at an arbitrary position. The slide member 85 is driven to extend and contract by an extension drive device (not shown) such as an electric motor and a screw feed mechanism provided on the support frame 84.

  The upper leg holding portion 82a is supported by the first slide member 85a so as to slide in the direction of the arrow a together with the first slide member 85a. The lower leg holding portion 82b is supported by the second slide member 85b so as to slide in the direction of the arrow b together with the second slide member 85b. Therefore, each slide member 85 is moved in the length direction of the user's leg from the contracted state as shown in FIG. 4 by a telescopic drive device (not shown), and separated from the seat portion 3 as shown in FIG. The leg rest part main body 8 can be made into the extended state.

[Rotation drive unit]
Next, the rotation drive unit 9 will be described in detail. As shown in FIGS. 2 and 3, the rotation drive unit 9 includes a swing member 92 and a rotation drive mechanism 93.

  The swing member 92 is disposed between the interlocking member 46 and the rotation drive mechanism 93. The swinging member 92 is swingable in a substantially vertical direction about the swinging shaft 91, and one end 46a of the interlocking member 46 is rotatably connected to the central portion of the rear part. Therefore, since the interlocking member 46 swings the swinging member 92 in the front-rear direction via the one end 46 a of the interlocking member 46, the swinging member 92 swings in the substantially vertical direction around the swinging shaft 91.

  The rotation drive mechanism 93 is disposed between the leg rest body 8 and the swing member 92. The rotation drive mechanism 93 is supported on the front surface of the swing member 92 and swings substantially vertically with the swing member 92. Further, the rotation drive mechanism 93 is configured to swing with respect to the swinging member 92 connected to the interlocking member 46 and to contact the rear part of the leg mounting unit body 8 to rotate the leg mounting unit body 8. Has been. Therefore, the rotation drive mechanism 93 can change the position of the leg rest part main body 8 with respect to the interlocking member 46, and can rotate the leg rest part main body 8 arbitrarily. Therefore, even if the backrest portion 4 is raised forward as shown in FIG. 5 or the backrest portion 4 is not largely tilted rearward, the leg rest body 8 is rotated to rise ( (4th posture), and the user can obtain a relaxed posture by extending his / her legs forward with the upper body up.

  With such a configuration, as shown in FIG. 4, a state (third posture) in which the leg rest body 8 is raised in conjunction with the tilting of the backrest portion 4, and a leg rest as shown in FIG. 3. The leg rest main body 8 can be arbitrarily rotated between the state in which the main body 8 is raised most (second posture). Further, as shown in FIG. 2, the leg rest main body 8 is moved in the state where the leg rest main body 8 is lowered most (first posture) and the backrest is raised in the forward direction as shown in FIG. The leg rest body 8 can be arbitrarily rotated between the raised state (fourth posture).

  The position (angle) of the leg rest portion 7 that rotates in conjunction with the backrest portion 4 is determined by the positions of the rotation shaft 81 and the one end 46 a of the interlocking member 46 and the tilt shaft 42 and the other end 46 b of the interlocking member 46. be able to. In the embodiment, the rotation of the pivot shaft 81 and the interlocking member 46 is such that the leg rest body 8 is rotated about 45 degrees from the most lowered state (first posture) to the raised state (third posture). One end 46a, the tilt shaft 42, and the other end 46b of the interlocking member 46 are provided (see FIG. 4). Moreover, while the backrest part 4 is tilted back, the rotation drive part 9 changes the position of the leg rest part main body 8 with respect to the interlocking member 46, the leg rest part main body 8 raises, and the chair-type massage machine 1 is carried out. The interlocking member 46 and the rotation drive part 9 are provided so that it may become a substantially flat state (refer FIG. 3). Therefore, when the leg rest part 4 is tilted backward to raise the leg rest part main body 8, the turning drive part 9 can turn the leg rest part main body 8 with a small driving force.

  Further, when the backrest part 4 is tilted, the interlocking member 46 swings in the front-rear direction via the other end 46 b of the interlocking member 46, and the rotational drive part 9 moves substantially vertically through the one end 46 a of the interlocking member 46. By swinging, the rotation drive unit 9 abuts on the rear part of the leg mounting unit main body 8 to rotate the leg mounting unit main body 8, so that the leg mounting unit main body 8 can rotate in a substantially vertical direction. Furthermore, the rotation drive unit 9 is configured such that the rotation drive mechanism 93 swings with respect to a swinging member 92 connected to the interlocking member 46 swinging in the front-rear direction via one end 46a of the interlocking member 46, Since the rotation drive unit 9 abuts on the rear part of the leg rest part main body 8 and changes the position of the leg rest part main body 8 with respect to the interlocking member 46, the leg rest part main body 8 can be pivoted substantially vertically. . That is, the rotation drive unit 9 is swung in conjunction with the tilting of the backrest part via the interlocking member 46, contacts the legrest body 8 and rotates the legrest body 8, and the interlocking member. The position of the leg rest body 8 with respect to 46 is changed. Therefore, the leg rest part body 8 can rotate smoothly in a short time, and the user can tilt the backrest part 4 while maintaining a relaxed state without applying excessive force to the abdominal muscles and the waist. Can follow.

  The leg rest main body 8 may be configured to be separated from the rotation drive unit 9. In the embodiment, the leg rest main body 8 and the rotation drive mechanism 93 can be separated from each other. For example, when the leg rest main body 8 is rotated from the state where the leg rest main body 8 is raised as shown in FIG. 3 to the state where the leg rest main body 8 is lowered as shown in FIG. When there is an object, a person, an animal, etc., the leg rest part main body 8 and the rotation drive part 9 can be separated to prevent pinching when the leg rest part is lowered. Can do.

  The rotation drive mechanism 93 has a plurality of air cells 93 that expand and contract by air supply / exhaust in order to change the position (angle) of the leg rest body 8 with respect to the swing member 92. The leg rest part main body 8 is rotated by supplying and exhausting air to the air cell 93 and expanding and contracting. When the air cell 93 expands, the leg rest part main body 8 is lifted as shown in FIG. 4 posture), and when the air cell 93 contracts, the leg rest body 8 is lowered (first posture) as shown in FIG. By adopting such a configuration, for example, it can be used as a drive source for rotating the leg rest body by sharing it with a pump used to drive the treatment section (air cells 23 to 27) provided in the chair type massage machine. There is no need to further mount a motor, and the chair-type massage machine body can be reduced in size and weight.

  Conventionally, there has been a chair-type massage machine that rotates a leg rest body by using an air cell that is expanded and contracted by air supply and exhaust as a drive source. However, since the leg rest main body having a large number of treatment parts is heavier, it is difficult to sufficiently raise the leg rest main body when an air cell that expands and contracts by air supply and exhaust is used as a drive source. The chair type massage machine 1 could not be brought into a substantially flat state.

  However, by changing the position of the leg rest part body 8 with respect to the interlocking member 46 that the pivot drive part 9 swings by the tilt of the back rest part 4, the back rest part 4 is tilted and the leg rest part body 8 is moved. In the case of raising, the rotation driving mechanism 93 can rotate the leg rest main body 8 with a small driving force. Therefore, even if an air cell that expands and contracts by air supply / exhaust is used for the rotation drive mechanism 93, the leg rest body 8 can be sufficiently rotated. As shown in FIG. The machine 1 can be in a substantially flat state. Therefore, it is not necessary to further mount a motor as a drive source for rotating the leg rest main body, and the chair type massage machine main body can be reduced in size and weight.

  The present invention can be applied to a chair type massage machine provided with a leg rest at the front of the seat.

DESCRIPTION OF SYMBOLS 1 Chair type massage machine 10 Supply / exhaust apparatus 11 Control apparatus 12 Operation apparatus 2 Treatment part 20 Massage device 23-27 Air cell 3 Seat part 30 Leg part 31 Base 32 Cushion part 33 Seat surface 4 Backrest part 40 Back frame 42 Tilt axis 44 Tilt Drive Mechanism 44a Tilt Drive Mechanism One End 44b Tilt Drive Mechanism Other End 46 Interlocking Member 46a Interlocking Member One End 46b Interlocking Member Other End 5 Armrest 6 Pillow 7 Leg Mount 8 Leg Mount Main Body 81 Rotating Shaft 82 Leg holder 82a Upper leg holder 82b Lower leg holder 83 Telescopic mechanism 84 Support frame 85 Slide member 85a First slide member 85b Second slide member 9 Rotating drive unit 91 Oscillating shaft 92 Oscillating member 93 Rotating Drive mechanism

Claims (4)

A seat where the user is seated, a treatment unit that performs a massage operation for the user, a backrest that can be tilted at the rear of the seat, and a front part of the seat that pivots up and down A leg rest provided in a possible manner, and an interlocking member that rotates the leg rest in conjunction with the tilting of the backrest,
The leg rest is
A leg rest body provided on the front part of the seat so as to be rotatable in the vertical direction;
A rotation drive unit disposed between the interlocking member and the leg rest main body and provided to be swingable in the vertical direction;
The leg rest can be rotated in conjunction with the tilting of the backrest via the interlocking member, and the rotational drive portion can change the position of the leg rest main body with respect to the interlocking member. A chair type massage machine configured to rotate the leg rest main body. One end of the interlocking member is pivotally connected to the backrest portion, and the other end is pivotally connected to the rotation drive portion, and is provided to be swingable.
The rotation drive unit is configured to swing through the interlocking member in conjunction with the tilting of the backrest unit, and to contact the leg mounting unit main body to rotate the leg mounting unit main body. The chair type massage machine of Claim 1 characterized by these. The rotation drive unit is
A swing member connected to the interlocking member and swingable with respect to a seat; an air cell supported by the swing member and expanding and contracting by air supply and discharge;
Have
3. The chair according to claim 1, wherein the chair is configured to change the position of the leg rest main body with respect to the interlocking member by rotating and contracting the air cell to rotate the leg rest main body. Type massage machine. The chair type massage machine according to any one of claims 1 to 3, wherein the leg rest part body is configured to be separated from the rotation drive part.

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