JP6852903B2 - Massage machine - Google Patents

Description

The present invention relates to a massage machine in which a massage mechanism is housed. In particular, the present invention relates to a chair-type massage machine used by the user while sitting on the seat.

Conventionally, the massage mechanism of a chair-type massage machine is housed inside the backrest portion, and generates at least one or more massage operations of kneading, tapping, acupressure, and vibration. As a massage machine accommodating such a massage mechanism (back massage device), for example, there is one shown in Patent Document 1.

Japanese Unexamined Patent Publication No. 2014-210005

By the way, the user has requested that various massages be performed on the treatment area such as the shoulder.
To meet this demand, for example, as shown in Patent Document 1, there is a massage machine provided with an advancing / retreating mechanism that changes the amount of protrusion of the treatment child (massage member) forward. This advancing / retreating mechanism causes the treatment element to protrude forward by inflating the airbag (air cell) (see FIG. 27 and the like).

However, since the advancing / retreating mechanism is an airbag, it is considered that the treatment child does not protrude as expected in the actual massage operation because it is compressed and deformed by the load of the user or the like. That is, there is a risk that the pushing into the treatment portion will be weak.
By the way, conventionally, many guide rails for moving the massage mechanism in the chair-type massage machine in the vertical direction are continuous and fixed (see FIGS. 13 to 19 of Patent Document 1 and the like). In the case of such a massage machine provided with one fixed guide rail, the amount of protrusion of the treatment element in the forward direction is limited.

That is, even if the advancing / retreating mechanism as in Patent Document 1 is adopted for the conventional massage machine equipped with one fixed guide rail, the amount of protrusion of the treatment child cannot be expected, so the effect of the massage is low. There is a risk that it will become a thing.
In the case of a massage machine as in Patent Document 1, it is unclear whether the user's request to perform various massages on the treatment section can be surely realized.

Therefore, in view of the above problems, the present invention makes the entire device simple and compact, can easily switch the massage position, and can give various massage effects to the user. The purpose is to provide.

In order to achieve the above object, the following technical measures have been taken in the present invention.
The massage machine according to the present invention includes a massage mechanism that imparts a massage operation to a treatment unit, a moving drive unit that moves the massage mechanism from one side to the other along a predetermined trajectory, and the like. It is characterized by having a switching mechanism for switching the moving direction of the massage mechanism to a plurality of directions by changing the degree of bending of the trajectory.

Preferably, the switching mechanism has a connecting portion that enables the massage mechanism to continuously move the bending portion existing on the orbit when the degree of bending of the orbit is changed. Good.
Preferably, the track is formed by associating the first track and the second track in the longitudinal direction, the connecting portion is formed at the mated portion, and the first orbit is formed at the connecting portion. It is preferable that the bending degree of the orbit can be changed by swinging one orbit or the second orbit around an axis orthogonal to the longitudinal direction.

Preferably, the track is formed by abutting the first rail member and the second rail member in the longitudinal direction, and the massage mechanism rolls on the first rail member and the second rail member. Alternatively, it has a sliding guide member, and when the guide member continuously moves through the connection portion, the massage mechanism continuously moves from the first rail member to the second rail member. It is good to do it.

Preferably, the massage mechanism has a rotating shaft that is arranged in a direction intersecting the track and transmits the rotational driving force of the moving driving unit, and a driving member provided on the rotating shaft, and the driving member Due to the transmitted rotational driving force, the massage mechanism is configured to move from one side of the track to the other side or from the other side to one side, and the guide member continuously moves through the connection portion to obtain the said. When the massage mechanism moves from the first rail member to the second rail member, the massage mechanism is configured to tilt around the axis of the rotation shaft that transmits the rotational driving force of the moving drive unit. It is good to have.

Preferably, the drive rail member included in the drive member is arranged along the first rail member, and the end portion of the drive rail member is located at a position separated from the connection portion toward the anti-second rail member side. It should be deployed.
Preferably, in the connecting portion, the first rail member has a first connecting piece projecting in the longitudinal direction, the second rail member has a second connecting piece projecting in the longitudinal direction, and the first The connection piece and the second connection piece are arranged so as to overlap in a side view, and the side surface of the first connection piece and the side surface of the second connection piece have any bending angle of the track. Even if there is, the state of contact is maintained, and the guide surface of the first connection piece and the guide surface of the second connection piece are in a state of being continuously connected to the guide surface of the first connection piece. It is preferable that at least one of the guide surfaces of the second connecting piece is in constant contact with the guide member.

Preferably, the main body portion provided with the massage mechanism, the swinging portion capable of swinging with respect to the main body portion, and the posture of the swinging portion are oriented in a predetermined direction with respect to the main body portion. It has a posture changing portion that swings and changes, the main body portion is provided with the first rail member, and the swinging portion is provided with the second rail member. When the posture of the swinging portion is changed by the posture changing portion, the degree of bending of the second rail member is changed by the switching mechanism, and the massage mechanism continuously moves from the main body portion to the swinging portion. You should move.

Preferably, the posture changing portion is a ratchet mechanism capable of changing the inclination degree of the swinging portion in a plurality of directions.
The most preferable form of the massage machine according to the present invention is a massage mechanism that imparts a massage operation to the treatment unit, and the massage mechanism is moved from one side to the other along a predetermined trajectory. It has a moving drive unit and a switching mechanism for switching the moving direction of the massage mechanism into a plurality of directions by changing the degree of bending of the orbit, and the massage mechanism is arranged in a direction intersecting the orbit. Moreover, it has a rotating shaft for transmitting the rotational driving force of the moving driving unit and guide members provided at both ends of the rotating shaft.
The switching mechanism has a connecting portion that enables the massage mechanism to continuously move to a bending portion existing on the orbit when the degree of bending of the orbit is changed.
The orbit is formed by associating the first orbit and the second orbit in the longitudinal direction, and the connecting portion is formed at the mated portion, and at the connecting portion, the first orbit or the first orbit or By swinging the second track around an axial center orthogonal to the longitudinal direction, the degree of bending of the track can be changed, and the track extends the first rail member and the second rail member. is formed by causing butted in direction, the massaging mechanism, the first rail member and the second rail member on said guide member is assumed that the through rolling slides, the guide member is the connection By continuously moving the portions, the massage mechanism continuously moves from the first rail member to the second rail member, and in the connecting portion, the first rail member moves in the longitudinal direction. has a first connection piece that roll and said guide member upper surface protrudes, said second rail member has a second connection piece longitudinally projecting and said guide member rolls on the upper surface, The first connection piece and the second connection piece are arranged so as to overlap each other in a side view, and the side surface of the first connection piece and the side surface of the second connection piece have different bending angles of the track. The guide surface of the first connection piece and the guide surface of the second connection piece are in a state of being continuously connected by maintaining the state of being in contact with any of the first connection pieces. At least one of the guide surface and the guide surface of the second connecting piece is in contact with the guide member.

According to the present invention, the entire device can be made simple and compact, the massage position can be easily switched, and various massage effects can be imparted to the user.

It is a perspective view which shows the whole of the massage machine which concerns on this invention (left figure: the state which the main body part of the backrest part and the headrest part are at the same inclination (first posture), right figure: the headrest part is tilted forward. The massage mechanism protrudes forward from the main body (second posture). It is a front view which shows the massage machine which concerns on this invention (left figure: 1st posture, right figure: 2nd posture). It is sectional drawing of the massage machine which concerns on this invention (left figure: AA cross section, right figure: BB cross section). It is a perspective view of the massage machine in the first posture (AA cross section). It is an enlarged view of the connection part (C part) of a switching mechanism (first posture). It is a perspective view of the massage machine in the 2nd posture (BB cross section). It is an enlarged view of the connection part (D part) of a switching mechanism (second posture). It is a figure which shows the continuous movement state of the guide member in the 2nd posture (1st rail-connecting part-second rail).

Hereinafter, an embodiment of the massage machine 1 according to the present invention will be described with reference to the drawings.
In the present embodiment, the chair-type massage machine 1 will be described as an example, but this is an example embodying the present invention, and the specific example does not limit the configuration of the present invention. ..
Also, in order to make the drawings easier to see, some of the components are omitted.

In the following description, the direction shown in the drawing will be the direction when the massage machine 1 is described. This coincides with the direction seen from the user sitting on the massage machine 1.
1 to 8 show an embodiment of the massage machine 1 according to the present invention.
The states shown in FIGS. 1 to 3 on the left, FIGS. 4 and 5, are referred to as the "first posture" of the massage machine 1.

The states shown on the right side of FIGS. 1 to 3 and the states shown in FIGS. 6 to 8 are referred to as the "second posture" of the massage machine 1.
The first posture and the second posture are examples for explaining the present embodiment, and are not limited to these postures (tilt angles). That is, in addition to these postures, a plurality of postures may be held.

As shown in FIG. 1 and the like, the massage machine 1 of the present embodiment has a seat portion 2 on which the user can sit, and a backrest portion provided so as to extend upward from the seat portion 2 and the rear end side. The user sits on the seat portion 2 and leans on the backrest portion 3 to massage from the neck muscles and shoulders to the lumbar region.
That is, when using this massage machine 1, the user sits down on the seat portion 2 and sits on the backrest portion 3 with the back attached, and the massage mechanism 30 housed inside the backrest portion 3 The treatment is performed from the neck muscles and shoulders to the waist of the user, that is, the back (treatment part) is massaged.

Regarding the massage machine 1, for example, when reclining is possible, the back of the user can be massaged in various postures (tilted posture, standing posture, etc.) of the backrest portion 3.
The seat portion 2 has an area sufficient for the user to sit on, and a cushion material is provided on the seat surface (upper surface) side.

The backrest portion 3 is provided on the rear end side of the seat portion 2 so as to stand up in the front-rear direction, and is a member that supports the back portion (lumbar to shoulder portion) of the user so as to cover the entire surface. is there. The backrest portion 3 is a housing having a width slightly wider than the shoulder width of the user, a plate shape (plate shape) long in the vertical direction, and a hollow inside. Further, the backrest portion 3 has a thickness in the front-rear direction that is thinner than that in the width direction.

That is, the backrest portion 3 is arranged along the back portion of the user. The backrest portion 3 has a plate-shaped base body 6 (rear side cover) that is long in the vertical direction, and a covering body 7 (front side cover) that covers the front surface of the base body 6.
The base body 6 is formed in a plate shape that is thin in the front-rear direction and long in the vertical direction. In other words, it can be said that the base body 6 opens toward the front and is formed in a shallow concave shape.

A massage mechanism 30 (details will be described later) is attached to the front surface of the base body 6 so as to be movable in the vertical direction. That is, the massage mechanism 30 provided on the front surface of the base body 6 moves from one side of the track 23 to the other side (vertical direction) along a predetermined track 23 by the moving drive unit 13 (details will be described later). To do.
The covering body 7 is thin in the front-rear direction and is formed in the shape of a long plate in the vertical direction like the base body 6. In other words, it can be said that the covering body 7 is formed in a shallow concave shape with an opening toward the rear.

That is, the covering body 7 closes the opening facing the front of the base body 6 by covering the front surface of the base body 6 over the entire surface.
Further, on the central side of the covering body 7 in the width direction, an opening 8 that opens forward along the vertical direction is formed.
The width of the opening 8 is narrower in the left-right direction than the width of the covering body 7, and the length is the same as that in the vertical direction of the covering body 7. That is, when the opening 8 is viewed from the front, the opening is formed in a long strip shape in the vertical direction.

Along the opening 8, the massage mechanism 30 freely moves in the vertical direction (longitudinal direction) on the front surface of the base body 6 (inside the backrest portion 3). That is, the opening 8 is a moving area in which the massage mechanism 30 moves up and down.
Further, the opening 8 is covered without a gap by a cloth-like front cover body (not shown) or the like so that the massage mechanism 30 does not directly hit the back (treatment portion) of the user.

That is, in the backrest portion 3, the base body 6 and the covering body 7 are superposed in the front-rear direction, and a space is formed in the superposed portion. The backrest portion 3 accommodates the massage mechanism 30 so as to be movable along the vertically long opening 8. Further, the opening 8 of the covering body 7 is arranged so that the treatment child 33 of the massage mechanism 30 projects forward, and is closed by a front cover body or the like.
As shown in FIGS. 1 to 6, in the present embodiment, the backrest portion 3 is a main body portion 4 that is supported by hanging from the shoulder to the waist of the user, and a headrest portion that is supported by hanging from the neck muscle to the head. It is divided into upper and lower parts with 5 (swinging part). The headrest portion 5 is swingable with respect to the main body portion 4.

A pair of left and right posture changing portions 9 are provided between the main body portion 4 and the headrest portion 5 so that the headrest portion 5 is swung in a predetermined direction with respect to the main body portion 4 and engaged in a predetermined posture. ing.
Regarding the base body 6, the main body 4 side is referred to as the first base body 6a, and the headrest portion 5 side is referred to as the second base body 6b. Similarly, of the covering body 7, the main body 4 side is referred to as the first covering body 7a, and the headrest portion 5 side is referred to as the second covering body 7b. Similarly, for the opening 8, the main body 4 side is referred to as the first opening 8a, and the headrest portion 5 side is referred to as the second opening 8b.

As shown in FIG. 1, the posture changing portion 9 swingably supports the headrest portion 5 (swinging portion) with respect to the main body portion 4 and engages the headrest portion 5 in a predetermined posture. The posture changing portion 9 maintains the posture of the swinging portion 5 in a plurality of directions by changing the degree of inclination.
The posture changing portion 9 is provided between the main body portion 4 and the headrest portion 5 and is provided on at least one of the left and right sides of the headrest portion 5.

The posture changing portion 9 is provided in the headrest portion 5, and is engaged with the engaging member 10 when the headrest portion 5 is changed to a predetermined posture, and the engaging member 10 is oriented around the axis in the left-right direction. It has a support shaft 11 that swingably supports it, and a support member 12 that is provided on the main body 4 and supports the support shaft 11.
The posture changing portion 9 swings the headrest portion 5 in a predetermined posture (massage position) in the front-rear direction by engaging the support member 12 of the main body portion 4 and the engaging member 10 of the headrest portion 5. It is configured to be able to stop and maintain its posture.

The posture changing portion 9 may be, for example, a posture in which the headrest portion 5 is swung backward so as to have the same inclination as the inclination of the main body portion 4 (first posture), or a posture in which the headrest portion 5 is swung forward and bent. Change to multiple postures such as (second posture). The posture of the headrest portion 5 is not limited to the illustrated one.
The configuration of the posture changing portion 9 is particularly limited as long as the headrest portion 5 is fixed at a position in a predetermined posture in the front-rear direction and the headrest portion 5 can be released from the fixation when switching to another posture. I will not do it.

For example, the posture changing portion 9 may employ a ratchet mechanism or the like capable of changing the degree of inclination of the headrest portion 5 in a plurality of directions.
By the way, the massage mechanism 30 of the present embodiment is provided with a moving drive unit 13 for moving the massage mechanism 30 in the vertical direction.
As shown in FIGS. 1 to 6, the moving drive unit 13 is provided below the drive unit of the massage mechanism 30, and raises and lowers the massage mechanism 30 and raises and lowers the massage mechanism 30 and raises and lowers the massage mechanism 30. It has a guide portion 21 for guiding along the member 18.

The elevating unit 14 converts the elevating motor 15 that generates a rotational driving force, the gearbox 16 that reduces the rotational driving force to a predetermined speed, the rotating shaft 17 that rotates by the rotational driving force, and the rotational driving force into an elevating operation. It has an elevating member 18 and an elevating member 18.
In the elevating motor 15, the output shaft 15a faces to the left, and the output shaft 15a is inserted into the side gearbox 16. In the gearbox 16, the rotating shaft 17 (elevating shaft) is below the output shaft 15a and penetrates in the left-right direction. The gearbox 16 reduces the output rotational driving force to a predetermined speed and transmits it to the elevating shaft.

The elevating shaft is arranged in a direction (left-right direction) in which the axis intersects the direction of the track 23 (details will be described later), and the gearbox 16 is arranged in the center of the longitudinal direction thereof. That is, the elevating shaft is connected to the elevating motor 15 via the gearbox 16. An elevating member 18 is provided on the end side of the elevating shaft.
The elevating member 18 has a driving member 19 provided on the elevating shaft and a driving rail member 20 on which the driving member 19 moves. In the present embodiment, the drive member 19 is a pinion gear and the drive rail member 20 is a rack gear.

The pinion gears 19 are attached to both ends of the elevating shaft, and rotate with the rotation of the elevating shaft. A rack gear 20 is provided on the front surface of the first base body 6a facing the pinion gear 19.
The rack gear 20 has rack teeth arranged side by side in a straight line along the vertical direction, and the pinion gear 19 meshes with the rack gear 20. When the pinion gear 19 moves on the rack gear 20, the rotational driving force of the elevating shaft is converted into a linear movement operation in the vertical direction, and the massage mechanism 30 rises and falls in the backrest portion 3.

A guide portion 21 for guiding the massage mechanism 30 in the vertical direction is provided on the outer side of the elevating member 18 in the left-right direction.
The guide portion 21 has a guide member 22 attached to the side of the massage mechanism 30 (both ends of the elevating shaft, etc.) and a track 23 that guides the guide member 22 from one side to the other. There is.

As shown in FIGS. 3 to 8, the guide member 22 is a roller member 22 whose axis is oriented in the left-right direction and is rotatably or slidably fitted in the track 23. The diameter of the roller member 22 is substantially the same as the height in the track 23 (groove height), and the height in the axial direction is larger than the depth in the track 23 (groove depth). As a result, the roller member 22 can move in the track 23.

A pair of roller members 22 (upper roller members 22a) are provided on both left and right sides of the upper part of the massage mechanism 30 (casing 41), and a pair (lower roller members 22b) are provided on both left and right sides of the lower part (left and right ends of the elevating shaft). Has been done. That is, the roller members 22 are provided at substantially four corners of the massage mechanism 30.
The track 23 is a rail member 23 into which the roller member 22 is rolled or slidably fitted. Hereinafter, the track 23 will be described as the rail member 23.

When the position of the headrest portion 5 is changed from the first posture to the second posture by the posture changing portion 9, the rail member 23 is bent and switched in the changed direction. ..
The rail member 23 of the present embodiment is composed of the first rail member 24 and the second rail member 25, and is formed by associating the first rail member 24 and the second rail member 25 in the longitudinal direction. There is.

Further, in the present embodiment, of these two rail members 24 and 25, the second rail member 25 is configured to be able to bend in the front-rear direction with respect to the first rail member 24.
That is, when the first rail member 24 and the second rail member 25 are changed to the first posture, the parts that are in contact with each other are close to each other. In addition, the associated portion separates when the posture is changed to the second posture.

A pair of first rail members 24 are provided on both the left and right sides of the first opening 8a (main body 4), and are arranged in parallel with the rack gear 20. The length of the first rail member 24 is substantially the same as the length of the first opening 8a in the longitudinal direction (vertical direction).
The first rail member 24 has two side walls, a front side wall 24a and a rear side wall 24b, the front side wall 24a is formed on the first covering body 7a, and the rear side wall 24b is formed on the first base body 6a. .. The front side wall 24a and the rear side wall 24b of the first rail member 24 are arranged so as to face each other in the front-rear direction. Further, the distance (groove width) between the front side wall 24a and the rear side wall 24b is substantially the same as the diameter of the roller member 22.

A pair of second rail members 25 are provided on both the left and right sides of the second opening 8b (headrest portion 5). The length of the second rail member 25 is substantially the same as the length of the second opening 8b in the longitudinal direction (vertical direction).
The second rail member 25 has two side walls, a front side wall 25a and a rear side wall 25b, the front side wall 25a is formed on the second covering body 7b, and the rear side wall 25b is formed on the second base body 6b. .. The front side wall 25a and the rear side wall 25b of the second rail member 25 are arranged so as to face each other in the front-rear direction. Further, the distance (groove width) between the front side wall 25a and the rear side wall 25b is substantially the same as the diameter of the roller member 22.

Regarding the width (groove depth) of the first rail member 24 and the second rail member 25, it is assumed that the outer peripheral surfaces of the roller member 22 can be sufficiently contacted.
A switching mechanism 26 for switching the moving direction of the massage mechanism 30 is provided between the upper portion of the first rail member 24 and the lower portion of the second rail member 25.
As shown in FIGS. 3 to 8, the switching mechanism 26 switches the moving direction of the massage mechanism 30 to a plurality of directions by changing the degree of bending of the first rail member 24 and the second rail member 25. is there.

In the switching mechanism 26, when the degree of bending of the first rail member 24 and the second rail member 25 is changed, the massage mechanism 30 continuously presses the bending portions existing on the first rail member 24 and the second rail member 25. It has a "connecting portion 27" that enables it to move in a targeted manner.
The connecting portion 27 is a joint that allows the roller member 22 to continuously run even if it is bent at a portion where the upper end portion of the first rail member 24 and the lower end portion of the second rail member 25 meet. It is the part that became.

That is, the switching mechanism 26 swings the second rail member 25 (or the first rail member 24) around the axis perpendicular to the longitudinal direction (the axis around the support shaft 11 of the posture changing portion 9) at the connecting portion 27. By moving it, the degree of bending of the first rail member 24 and the second rail member 25 is changed.
By moving the roller member 22 while continuously contacting the connecting portion 27, the roller member 22 is guided without being separated from the first rail member 24 and the second rail member 25, so that the massage mechanism 30 is guided by the first rail. It continuously moves from the member 24 to the second rail member 25 via the connecting portion 27.

In the switching mechanism 26, for example, the headrest portion 5 is changed from the “first posture” shown in FIGS. 4 and 5 to the “second posture” shown in FIGS. 6 and 7 by the posture changing portion 9. Then, the second rail member 25 is tilted in the same direction (forward direction) as the headrest portion 5 among the plurality of moving directions to bring the connecting portion 27 into a bent state. The connecting portion 27 in which the bent portion is formed is used as a “transfer portion” that allows the massage mechanism 30 to be guided seamlessly between the first rail member 24 and the second rail member 25.

That is, the switching mechanism 26 prevents the roller member 22 from providing a "non-contact section" in which the roller member 22 does not come into contact with both the first rail member 24 and the second rail member 25.
In other words, when the roller member 22 finishes traveling on the first rail member 24, it immediately travels on the second rail member 25 by passing through the connecting portion 27 of the bent portion that can be transferred by the switching mechanism 26. Can be done.

The upper end of the rack gear (drive rail member 20) is provided at a position away from the connecting portion 27 on the anti-second rail member 25 side.
As shown in FIGS. 4 to 8, the connecting portion 27 has a first connecting piece 28 protruding in the longitudinal direction from the first rail member 24 and a second rail member in the direction opposite to the first connecting piece 28. It has a second connecting piece 29 projecting from 25 in the longitudinal direction.

Specifically, the first connection piece 28 and the second connection piece 29 are arranged so as to be staggered in a front view. For example, when the first connecting piece 28 extends upward from the right side of the first rail member 24, the second connecting piece 29 extends downward from the left side of the second rail member 25. The first connection piece 28 and the second connection piece 29 may be arranged in opposite positions (left-right reversed).

Further, the first connection piece 28 and the second connection piece 29 are arranged so as to overlap (overlap) in the side view (see FIGS. 5 and 7). That is, the upper end of the guide surface 28b of the first connection piece 28 and the lower end of the guide surface 29b of the second connection piece 29 overlap even when the first rail member 24 and the second rail member 25 are bent. There is. This is the connecting portion 27, which is a “transfer section” for the roller member 22 to move from the first rail member 24 to the second rail member 25.

The side surface 28a facing the outside of the first connecting piece 28 and the side surface 29a facing the inside of the second connecting piece 29 are arranged so as to face each other. Further, the guide surface 28b facing the front of the first connection piece 28 and the guide surface 29b facing the front of the second connection piece 29 are continuously connected to guide the first connection piece 28. At least one of the surface 28b and the guide surface 29b of the second connecting piece 29 is always in contact with the roller member 22.

That is, the first connecting piece 28 and the second connecting piece 29 are provided so as to be in contact with each other in the left-right direction, and what is the bending angle of the first rail member 24 and the second rail member 25. Maintain contact with each other.
For example, when the first rail member 24 and the second rail member 25 are in a bent state and the roller member 22 traveling in the first rail member 24 moves to the second rail member 25, the roller member 22 at the connecting portion 27 Is about to come into contact with the guide surface 28b of the first connection piece 28, and then begins to come into contact with the guide surface 29b of the second connection piece 29.

As a result, the massage mechanism 30 moves on the first rail member 24 and the second rail member 25 from one side (upper side) to the other side (lower side) or from the other side to one side.
That is, in the connecting portion 27, there is a section in which the roller member 22 contacts both the guide surface 28b of the first connection piece 28 and the guide surface 29b of the second connection piece 29.
Further, when the roller member 22 continuously moves through the connecting portion 27 and the massage mechanism 30 moves from the first rail member 24 to the second rail member 25 via the connecting portion 27, the moving drive unit 13 The massage mechanism 30 is tilted around the axis of the rotating shaft 17 (elevating shaft) that transmits the rotational driving force of the above.

That is, the massage mechanism 30 is swingably supported around the axis of the rotation shaft 17 (elevating shaft) of the moving drive unit 13.
In this way, the massage mechanism 30 swings around the axis of the rotating shaft 17 (elevating shaft) due to the switching of the moving direction by the switching mechanism 26 and the ascent by the moving drive unit 13, so that the backrest portion 3 It can protrude more forward.

Next, the outline of the configuration of the massage mechanism 30 will be described.
The basic device configuration of the massage mechanism 30 described below is almost the same as the configuration described in, for example, Japanese Patent Application Laid-Open No. 2011-1331039.
As shown in FIGS. 2, 4, 6, and the like, the massage mechanism 30 of the present embodiment penetrates the massage member 31 that imparts a massage operation to the treatment portion (back portion) and the proximal end side of the massage member 31. A massage rotation shaft 34, a drive unit 35 that rotationally drives the massage rotation shaft 34, a conversion unit 38 that converts the rotational force of the massage rotation shaft 34 into a massage operation, and a movement drive unit that moves the massage member 31 in the vertical direction. 13 and.

A pair of massage members 31 are arranged at predetermined intervals in the left-right direction. The massage member 31 has an arm member 32 that projects from the drive unit 35 toward the user side (forward).
The tip of the arm member 32 protrudes in two directions, an obliquely front upper part and an oblique front lower part, and a treatment child 33 is provided at each of the branched upper tip and lower tip. The midway portion of the arm member 32 in the longitudinal direction is the base end of the massage member 31.

The treatment child 33 massages the back portion (treatment portion) of the user such as the shoulder, and is a member formed in a spherical shape.
When the pair of left and right massage members 31 are separated from each other in close proximity to each other, the treatment child 33 on the left side and the treatment child 33 on the right side repeat close separation in the left-right direction to massage the treated portion.

The massage rotation shaft 34 is arranged so that its axis faces in the horizontal direction, and is rotatably supported by a support portion 42 provided on the casing 41. The massage rotation shaft 34 penetrates the conversion portion 38 provided at the base end of the massage member 31 in the left-right direction.
The drive unit 35 is arranged in the casing 41 between the pair of left and right massage members 31. The drive unit 35 includes a drive motor 36 that generates a rotational driving force, and a gearbox 37 that reduces the rotational driving force to a predetermined speed and transmits the rotational driving force to the massage rotation shaft 34.

In the drive motor 36, the output shaft 36a faces to the left, and the output shaft 36a is inserted into the side gearbox 37. In the gearbox 37, the massage rotation shaft 34 is below the output shaft 36a and penetrates in the left-right direction. The gearbox 37 reduces the output rotational driving force to a predetermined speed and transmits it to the massage rotary shaft 34.
The conversion unit 38 converts the rotational force of the massage rotation shaft 34 into a massage operation (proximity separation operation) of the massage member 31. The conversion unit 38 is provided on each of the base end sides of the pair of massage members 31, and the massage rotation shaft 34 rotatably penetrates therethrough.

The conversion unit 38 includes an inclined boss portion 39 that rotates integrally with the massage rotation shaft 34, an annular fitting portion 40 that is provided at the base end of the massage member 31 and externally fits the inclined boss portion 39, and the massage member 31 that rotates the massage. It has a regulation unit (not shown) that regulates accompanying rotation with the shaft 34.
The inclined boss portion 39 is fitted with a massage rotation shaft 34, and rotates together with the massage rotation shaft 34. An inclined cam surface is provided on the outer peripheral surface of the inclined boss portion 39 with respect to the massage rotation shaft 34. The tilted boss portion 39 tilts and rotates with respect to the axis of the massage rotation shaft 34. The inclination of the inclined boss portion 39 (cam surface) is inclined relative to each other between the pair of left and right massage members 31.

The annular fitting portion 40 is formed at the base end of the massage member 31, and fits the inclined boss portion 39 on the outside in a relatively rotatable state. The massage member 31 swings when the annular fitting portion 40 rotatably fits the inclined boss portion 39 that rotates in an inclined manner.
The restricting portion restricts the annular fitting portion 40 from rotating with respect to the inclined boss portion 39, and is provided on the rear side (casing 41 side) of the annular fitting portion 40. The regulation portion has a regulation pin provided in the annular fitting portion 40 and a regulation groove into which the regulation pin is slidably fitted.

The regulation pin is projected in the opposite direction (rear direction) of the massage member 31 projecting forward from the annular fitting portion 40. The regulation groove is long in the left-right direction and is provided in the casing 41 facing the regulation pin. The regulation pin is slidably inserted into the regulation groove, and the regulation pin swings in the left-right direction.
The moving drive unit 13 is as described above.

The operation mode of the massage machine 1 of the present embodiment will be described below.
First, the situation in the "first posture" will be described with reference to the left figure of FIG. 3, FIGS. 4, 5 and the like.
The posture changing portion 9 brings the headrest portion 5 into a "first posture" state having the same inclination as the inclination of the main body portion 4.

The switching mechanism 26 tilts the second rail member 25 rearward so as to be on the same straight line (same track) as the first rail member 24 according to the posture of the headrest portion 5.
As shown in FIGS. 4 and 5, at this time, the first rail member 24 and the second rail member 25 are brought into contact with each other, and the guide surface 28b of the first connection piece 28 and the guide surface 29b of the second connection piece 29 are surfaced. It has become one. The portion where the two guide surfaces 28b and 29b are flush with each other is the connecting portion 27.

Further, in a side view, the side surface 28a of the first connection piece 28 and the side surface 29a of the second connection piece 29 have a large overlapping (overlapping) portion. The first rail member 24 to the connecting portion 27 to the second rail member 25 are in a state in which the tracks 23 are connected to one.
In this state, when the moving drive unit 13 is operated to raise the massage mechanism 30 along the first rail member 24, the upper roller member 22a of the massage mechanism 30 travels in the first rail member 24. Subsequently, when the upper roller member 22a approaches the upper part of the first rail member 24, the first connecting piece 28 and the second connecting piece 29 travel on the connecting portion 27 in which the first connecting piece 28 and the second connecting piece 29 largely overlap. When the traveling portion 27 is finished, the upper roller member 22a travels in the second rail member 25.

In this way, the roller member 22 continuously and smoothly runs on the first rail member 24 to the connecting portion 27 to the second rail member 25.
First, the situation in the "second posture" will be described with reference to the right figure of FIG. 3, FIGS. 6 to 8, and the like.
The headrest portion 5 is in a "second posture" state in which the headrest portion 5 is bent forward by the posture changing portion 9.

The switching mechanism 26 tilts the second rail member 25 forward in accordance with the forward bending posture of the headrest portion 5.
That is, when the posture of the headrest portion 5 is changed by the posture changing portion 9, the switching mechanism 26 changes the degree of bending of the second rail member 25.
As shown in FIGS. 6 and 7, at this time, the track 23 composed of the first rail member 24 and the second rail member 25 has an L-shape bent rearward. The bent portion at this time is the connecting portion 27.

In the connection portion 27, the upper end of the guide surface 28b of the first connection piece 28 and the lower end of the guide surface 29b of the second connection piece 29 overlap in a side view. The overlapping portion in the "second posture" is smaller than that in the "first posture", but the roller member 22 can continuously travel.
That is, even in the bent state of the track 23 composed of the first rail member 24 to the connecting portion 27 to the second rail member 25, the first connecting piece 28 and the second connecting piece 29 overlap each other in the traveling direction of the roller member 22. , It is in a state of being connected to one without interruption (see FIGS. 7, 8 and so on).

In this state, when the moving drive unit 13 is operated to raise the massage mechanism 30 along the first rail member 24, the upper roller member 22a of the massage mechanism 30 travels in the first rail member 24. Subsequently, when the upper roller member 22a approaches the upper part of the first rail member 24, the first connecting piece 28 travels.
Further, when the upper roller member 22a approaches the upper end of the first connecting piece 28, it overlaps with the lower end of the second connecting piece 29 and travels in contact with the "connecting portion 27" which is a bent portion.

That is, the upper roller member 22a comes into contact with both the first connection piece 28 and the second connection piece 29, and continuously travels on the "connection portion 27".
When the upper roller member 22a is separated from the first connecting piece 28 (connecting portion 27), the upper roller member 22a travels on the second connecting piece 29 which is already in contact, and then travels in the second rail member 25.
The massage mechanism 30 rises from the main body 4 to the headrest 5 and continuously moves by the moving drive unit 13, and swings forward around the axis of the elevating shaft (lower roller member 22b). ..

At this time, the treatment child 33 of the massage member 31 protrudes forward from the main body portion 4 and the headrest portion 5, and is switched to a predetermined massage position.
As described above, the feature of the massage machine 1 of the present embodiment is that when the massage mechanism 30 is moved from one side to the other along a predetermined track 23 (rail member) by the moving drive unit 13. The object is to have a switching mechanism 26 capable of switching the moving direction of the massage mechanism 30 by changing the degree of bending of the track 23.

That is, the massage machine 1 of the present embodiment has a function of moving the massage mechanism 30 in the direction in which the headrest portion 5 is tilted.
Further, when the massage mechanism 30 is moved from one side to the other side, a switching portion (connecting portion 27) capable of smoothly shifting the moving direction is provided.

By providing such a trajectory 23 and a switching mechanism 26, the position of the massage can be easily switched, and various massage effects can be imparted to the user. In addition, the entire device can be made simple and compact.
The configuration of the track 23 and the switching mechanism 26 described in the present embodiment is an example and is not limited thereto.

It should be noted that the embodiments disclosed this time are exemplary in all respects and are not considered to be restrictive.
For example, it has a rotating shaft 17 (elevating shaft) provided with a driving member 19 and a massage rotating shaft 34 provided in the massage mechanism 30 and imparting a massage operation to the treatment portion, and the rotating shaft 17 (elevating shaft). ) And the massage rotation shaft 34 may be provided identically or coaxially.

In the present embodiment, the rail member 23 (track) is divided into a first rail member 24 and a second rail member 25, but it may be a single bendable rail member.
In particular, in the embodiments disclosed this time, matters not specified, for example, operating conditions, operating conditions, dimensions of components, weight, etc., do not deviate from the range normally practiced by those skilled in the art, and are normal. If you are a person skilled in the art, you are adopting items that can be easily assumed.

1 Massager 2 Seat 3 Backrest 4 Main body 5 Headrest 6 Base 6a 1st base 6b 2nd base 7 Cover 7a 1st cover 7b 2nd cover 8 Opening 8a 1st opening 8b 2nd opening 9 Posture change part 10 Engagement member 11 Support shaft 12 Support member 13 Moving drive part 14 Lifting part 15 Lifting motor 15a Output shaft 16 Gearbox 17 Rotating shaft (lifting shaft)
18 Lifting member 19 Drive member (pinion gear)
20 Drive rail member (rack gear)
21 Guide unit 22 Guide member (roller member)
22a Upper roller member 22b Lower roller member 23 Track (rail member)
24 1st rail member 24a Front side wall 24b Rear side wall 25 2nd rail member 25a Front side wall 25b Rear side wall 26 Switching mechanism 27 Connection part 28 1st connection piece 28a Side surface 28b Guide surface 29 2nd connection piece 29a Side surface 29b Guide surface 30 Massage Mechanism 31 Massage member 32 Arm member 33 Treatment child 34 Massage rotation shaft 35 Drive unit 36 Drive motor 36a Output shaft 37 Gearbox 38 Conversion unit 39 Inclined boss unit 40 Circular fitting unit 41 Casing 42 Support unit

Claims (5)

A massage mechanism that imparts a massage operation to the treatment unit, a moving drive unit that moves the massage mechanism from one side to the other along a predetermined trajectory, and a degree of bending of the trajectory are changed. As a result, it has a switching mechanism that switches the moving direction of the massage mechanism to a plurality of directions.
The massage mechanism has a rotation shaft that is arranged in a direction intersecting the trajectory and transmits a rotation driving force of the movement drive unit, and guide members provided at both ends of the rotation shaft.
The switching mechanism has a connecting portion that enables the massage mechanism to continuously move to a bending portion existing on the orbit when the degree of bending of the orbit is changed.
The track is formed by associating the first orbit and the second orbit in the longitudinal direction, and the connecting portion is formed at the mated portion, and the first orbit or the first orbit or the first orbit or the second orbit is formed at the connecting portion. By swinging the second trajectory around an axis orthogonal to the longitudinal direction, the degree of bending of the trajectory can be changed.
The track is formed by associating the first rail member and the second rail member in the longitudinal direction, and in the massage mechanism, the guide member rolls on the first rail member and the second rail member. It is assumed to move or slide, and when the guide member continuously moves through the connection portion, the massage mechanism continuously moves from the first rail member to the second rail member. Yes,
In the connecting portion, the first rail member has a first connecting piece that projects in the longitudinal direction and the guide member rolls on the upper surface, and the second rail member projects in the longitudinal direction and the guide member. Has a second connecting piece that rolls on the upper surface, and the first connecting piece and the second connecting piece are arranged so as to overlap in a side view, and the side surface of the first connecting piece and the first connecting piece are arranged so as to overlap each other. The side surface of the two connection pieces is maintained in contact with any bending angle of the track, and the guide surface of the first connection piece and the guide surface of the second connection piece are continuously connected. A massage machine characterized in that at least one of the guide surface of the first connecting piece and the guide surface of the second connecting piece is in contact with the guide member. The massaging mechanism includes a driving member provided on the front Symbol rotation axis,
The massage mechanism is configured to move from one side of the track to the other side or from the other side to one side by the rotational driving force transmitted by the driving member.
When the guide member continuously moves through the connection portion and the massage mechanism moves from the first rail member to the second rail member, the rotation that transmits the rotational driving force of the moving driving portion. The massage machine according to claim 1, wherein the massage mechanism is configured to be tilted around the axis of the shaft. The drive rail member included in the drive member is arranged along the first rail member, and the end portion of the drive rail member is arranged at a position away from the connection portion on the anti-second rail member side. The massage machine according to claim 2, wherein the massage machine is provided. The main body provided with the massage mechanism, the swinging portion capable of swinging with respect to the main body, and the posture of the swinging portion are swung in a predetermined direction with respect to the main body. Has a posture change part to change
The first rail member is provided on the main body portion, and the first rail member is provided.
The swing portion is provided with the second rail member.
When the posture of the swinging portion is changed by the posture changing portion, the degree of bending of the second rail member is changed by the switching mechanism, and the massage mechanism continuously moves from the main body portion to the swinging portion. The massage machine according to claim 1, wherein the massage machine is moved. The massage machine according to claim 4, wherein the posture changing portion is a ratchet mechanism capable of changing the inclination degree of the swinging portion in a plurality of directions.

Images