JP7304771B2 - Massage unit and massage machine - Google Patents

Description

The present invention relates to a massage unit having treatment elements and a massage machine equipped with the massage unit.

Patent Literature 1 discloses a massage machine capable of significantly changing the amount of protrusion of kneading balls.

In the massage machine disclosed in FIGS. 2 to 6 of Patent Document 1, a pair of left and right guide bars extending in the front-rear direction are attached to upper and lower portions of a massage unit casing, respectively. A kneading ball drive unit casing is attached to each guide bar. The kneading ball driving unit casing can move back and forth along each guide bar. The kneading balls move back and forth in the front-rear direction by moving back and forth along the guide bars of the kneading ball drive unit casing.

In the massage machine disclosed in FIGS. 7 to 12 of Patent Document 1, a pair of left and right pinion gears are attached to the advancing and retreating shaft extending along the left and right width direction, and a pair of left and right circles are attached to the upper part of the kneading ball drive unit casing. Arc-shaped racks are installed. As the pinion gear rotates with the rotation of the forward/backward shaft, the rack moves while meshing with the pinion gear. By the movement of the rack, the kneading ball driving unit casing swings in the front-rear direction about the elevating shaft, and the kneading balls move back and forth in the front-rear direction.

JP-A-2002-159549

In the massage unit disclosed in Patent Document 1, the kneading ball drive unit casing retreats backward when the protruding amount of the kneading balls is reduced. need to ensure.

SUMMARY OF THE INVENTION In view of the above situation, an object of the present invention is to provide a massage unit that does not need to secure an empty space in preparation for when the protrusion amount of the treatment element is reduced, and a massage machine that mounts the massage unit.

The massage unit disclosed herein comprises a treatment element, a longitudinally extendable actuator, and an arm to which the treatment element is attached at one end, one end of the actuator being attached to the other end of the arm. a first rotation fulcrum that is a rotation fulcrum of the arm is provided at an intermediate portion of the arm, and a positional relationship between the first rotation fulcrum and a second rotation fulcrum that is the rotation fulcrum of the other end of the actuator; Alternatively, the configuration (first configuration) is such that the positional relationship between the first rotation fulcrum and the other end of the actuator is fixed.

In the massage unit having the first configuration, a first rotating shaft serving as the first rotation fulcrum and an eccentric rotating body fixed to the first rotating shaft are provided, and the first rotating shaft includes the eccentric rotating body. A configuration (second configuration) in which the arm is supported through the support may be employed.

In the massage unit having the second configuration, the actuator may be configured to swing in the axial direction of the first rotating shaft with the other end of the actuator as a fulcrum (third configuration).

In the massage unit of the second or third configuration, a configuration (fourth configuration) in which a fixed shaft parallel to the first rotation shaft is provided and the other end of the actuator is attached to the fixed shaft good.

In the massage unit having any one of the second to fourth configurations, a configuration comprising a second rotating shaft parallel to the first rotating shaft and a pinion gear provided at the end of the second rotating shaft (fifth configuration).

In the massage unit having any one of the first to fifth configurations, the treatment element may be configured to have a vibrator (sixth configuration).

The massage machine disclosed in the present specification includes a massage unit having any one of the first to sixth configurations, a body support section that supports the body of a user, and the body support section that is in contact with the body. and a guide rail extending along the surface, and the massage unit is guided by the guide rail to ascend and descend within the body support section (seventh configuration).

According to the massage unit and the massage machine equipped with the massage unit disclosed in this specification, it is not necessary to secure an empty space in preparation for reducing the amount of protrusion of the treatment elements.

Front perspective view of a massage machine according to one embodiment Front view of a massage unit according to one embodiment Rear view of a massage unit according to one embodiment 1 is a front perspective view of a massage unit according to one embodiment; FIG. Front perspective view of the massage machine according to one embodiment when the amount of protrusion of the treatment element is large. Front perspective view of a massage machine according to an embodiment when the protrusion amount of the treatment element is small. FIG. 11 is a side view of a massage unit according to an embodiment when each treatment element has a different protrusion amount; Front view of a massage unit according to a modification Rear view of a massage unit according to a modification Cross-sectional view of a massage unit according to a modification

Exemplary embodiments of the invention are described in detail below with reference to the drawings.

<1. Configuration of Massager>
FIG. 1 is a front perspective view of a massage machine 100 (hereinafter referred to as "massage machine 100") according to one embodiment. In the following description, the front side (front side) as seen from the user seated on the massage machine 100 with the backrest 300 not reclined is referred to as the "front side", and the massage performed with the backrest 300 not reclined. The rear side (rear side) of the patient seated on the machine 100 is referred to as the "rear side." In addition, the upper side (head side) as seen from the user seated on the massage machine 100 with the backrest 300 not reclined is referred to as the "upper side." The lower side (leg side) as seen from the seated patient is referred to as the "lower side". Also, the right side as viewed from the user seated on the massage machine 100 is referred to as the "right side", and the left side as viewed from the user seated on the massage machine 100 is referred to as the "left side".

The massage machine 100 includes a seat portion 200 , a backrest portion 300 , a base portion 400 , an arm treatment portion 500 , an operation portion 600 , a cord wire 700 , a stand 800 and an ottoman 900 .

The seat 200 supports the user's buttocks and thighs.

The backrest 300 supports the shoulders, waist, and back of the user. The backrest portion 300 is attached to the rear end of the seat portion 200 so as to be rotatable about a reclining rotation axis extending in the left-right direction. The backrest portion 300 incorporates guide rails 300B and 300C extending along a surface 300A in contact with the shoulders and hips of the user. The massage unit 1, which will be described later, moves up and down within the backrest portion 300 while being guided by the guide rails 300B and 300C. The guide rails 300B and 300C may be extended to the rear portion of the seat portion 200 so that the massage unit 1, which will be described later, moves up and down within the seat portion 200 and the backrest portion 300.

The base portion 400 is provided upright on both left and right sides of the seat portion 200 and below the seat portion 200 . 400 A of control parts are incorporated in the inside of the base part 400 provided in the left side of the seat part 200. As shown in FIG.

The arm treatment units 500 are provided upright on both the left and right sides of the seat portion 200 and above the seat portion 200 . The arm treatment section 500 incorporates an inflatable and contractible airbag, and treats the patient's arm while supporting it with the airbag.

The operation unit 600 is an input device for the user to select a treatment pattern and adjust the strength of the treatment. The operation unit 600 is connected to the control unit 400A via the code line 700. FIG. 400 A of control parts control each part of the massage machine 100 based on the signal output from the operation part 600. FIG.

The stand 800 is fixed to the arm treatment section 500 provided on the left side of the seat section 200 . The operating unit 600 is attachable to and detachable from the stand 800 .

The ottoman 900 supports the lower legs of the user.

<2. Configuration of massage unit>
FIG. 2 is a front view of a massage unit 1 (hereinafter referred to as "massage unit 1") according to one embodiment. FIG. 3 is a rear view of the massage unit 1. FIG. FIG. 4 is a front perspective view of the massage unit 1. FIG.

Massage unit 1 comprises frames 2 and 3 . The frame 2 is arranged on the left side of the massage unit 1 and the frame 3 is arranged on the right side of the massage unit 1. - 特許庁

The frames 2 and 3 have a substantially triangular shape with the front end, upper end, and lower end as vertices when viewed from the side. The frame 2 is provided with a substantially triangular opening 2A having a front end, an upper end, and a lower end as vertices when viewed from the side. Similarly, the frame 3 is provided with a substantially triangular opening 3A having vertices at the front end, the upper end, and the lower end when viewed from the side. By providing the openings in the frames 2 and 3, the weight of the massage unit 1 can be reduced. The strength of the frames 2 and 3 may be improved without providing the openings in the frames 2 and 3 for weight reduction.

The massage unit 1 further includes a storage section 4. The housing portion 4 houses a rotation transmission portion which will be described later. The storage portion 4 is arranged between the frame 2 and the frame 3 in the left-right direction. The distance between the frame 2 and the storage portion 4 is substantially the same as the distance between the frame 3 and the storage portion 4 .

The massage unit 1 further includes a fixed shaft 5, an elevating motor 6, an elevating rotating shaft 7, guide rollers 8-11, and pinion gears 12 and 13.

A fixed shaft 5 extending in the left-right direction penetrates the tops of the frames 2 , 3 , and storage section 4 . The fixed shaft 5 is fixed with respect to the frame 2 , the frame 3 and the storage section 4 . A guide roller 8 is attached to the left end of the fixed shaft 5 so as to be rotatable with respect to the fixed shaft 5 . A guide roller 9 is attached to the right end of the fixed shaft 5 so as to be rotatable with respect to the fixed shaft 5 .

The lifting motor 6 is attached to the right side surface of the storage section 4 . A lifting rotation shaft 7 extending in the left-right direction penetrates the lower portions of the frames 2 , 3 , and storage section 4 . The lifting rotary shaft 7 is rotatable with respect to the frame 2 , the frame 3 , and the storage section 4 . A guide roller 10 and a pinion gear 12 are attached to the left end of the lifting rotation shaft 7 . A guide roller 11 and a pinion gear 13 are attached to the right end of the lifting rotation shaft 7 . The guide rollers 10 and 11 and the pinion gears 12 and 13 are fixed to the lifting rotation shaft 7 .

In the drawings, the left end of the guide roller 10 is located on the left side of the left end of the guide roller 8, and the right end of the guide roller 11 is located on the right side of the right end of the guide roller 9. The left end of 8 and the left end of guide roller 10 are not shifted in the horizontal direction, and the right end of guide roller 9 and the right end of guide roller 11 are not shifted in the horizontal direction.

The lifting motor 6 is interlocked with the lifting rotating shaft 7 by a first rotation transmission part (not shown) housed in the housing part 4 . The first rotation transmission section includes a bearing section and a gear mechanism. The lifting rotary shaft 7 is rotatably supported by a bearing portion in the first rotation transmission portion, a bearing portion provided in the lower portion of the frame 2 , and a bearing portion provided in the lower portion of the frame 3 .

The pinion gear 12 meshes with the rack provided on the right side of the guide rail 300B, and the pinion gear 13 meshes with the rack provided on the left side of the guide rail 300C. Therefore, when the lifting motor 6 is driven to rotate the lifting rotary shaft 7, the massage unit 1 moves up and down along the guide rails 300B and 300C.

The guide rollers 8 and 10 move while rotating on the guide rail 300B when the massage unit 1 is raised and lowered, and the guide rollers 9 and 11 move while rotating on the guide rail 300C when the massage unit 1 is raised and lowered.

The massage unit 1 further includes a kneading motor 14 and a kneading rotary shaft 15. - 特許庁

The kneading motor 14 is attached to the left side of the storage section 4 . A kneading rotating shaft 15 extending in the left-right direction penetrates the front portion of the storage portion 4 . The kneading rotary shaft 15 is rotatable with respect to the frame 2 , the frame 3 , and the storage section 4 . The left end of the kneading rotating shaft 15 is attached to the frame 2 and the right end of the kneading rotating shaft 15 is attached to the frame 3 .

A kneading motor 14 is interlocked with a kneading rotation shaft 15 by a second rotation transmission part (not shown) housed in the housing part 4 . The second rotation transmission section includes a bearing section and a gear mechanism. The kneading rotating shaft 15 is rotatably supported by a bearing in the second rotation transmitting section, a bearing provided in the front portion of the frame 2 , and a bearing provided in the front portion of the frame 3 .

The massage unit 1 includes a pair of left and right treatment elements 16 and 17, a pair of left and right arms AM1 and AM2, a pair of left and right eccentric rotating bodies 18 and 19, a pair of left and right actuators 20 and 21, and a pair of left and right fasteners 22. and 23, and fastener fixing components 24-27.

The arm AM1 supports the treatment element 16, and the arm AM2 supports the treatment element 17. The treatment element 16 is rotatably attached to the front end of the arm AM1, and the treatment element 17 is rotatably attached to the front end of the arm AM2.

A pair of left and right eccentric rotating bodies 18 and 19 are fixed to the kneading rotating shaft 15 . The kneading rotating shaft 15 supports the intermediate portion of the arm AM1 via the eccentric rotating body 18, and supports the intermediate portion of the arm AM2 via the eccentric rotating body 19.

The actuator 20 can be stretched in the longitudinal direction of the actuator 20 and the actuator 21 can be stretched in the longitudinal direction of the actuator 21 . The structure of the actuators 20 and 21 is not particularly limited. The amount of protrusion of the rod member from the tubular member may be changed by rotating the motor.

The upper end of actuator 20 is attached to fixed shaft 5 via fastener 22 , and the upper end of actuator 21 is attached to fixed shaft 5 via fastener 23 . The actuator 20 is connected to a fastener 22 so as to swing in the left-right direction about the upper end of the actuator 20 as a fulcrum. The actuator 21 is connected to a fastener 23 so as to swing in the left-right direction with the upper end of the actuator 21 as a fulcrum. The fasteners 22 and 23 are rotatably attached to the fixed shaft 5, respectively. Fastener fixing components 24 and 25 prevent lateral movement of fastener 22 . The fastener fixing component 24 is provided to the left of the fastener 22 , and the fastener fixing component 25 is provided to the right of the fastener 22 . Fastener fixing parts 26 and 27 prevent lateral movement of fastener 23 . The fastener fixing component 26 is provided to the left of the fastener 23 , and the fastener fixing component 27 is provided to the right of the fastener 23 . As the fastener fixing parts 24 to 27, snap rings or the like that fit into grooves formed in the fixed shaft 5, for example, can be used.

The lower end of actuator 20 is connected to the rear end of arm AM1 by a ball joint, and the lower end of actuator 21 is connected to the rear end of arm AM2 by a ball joint.

The longitudinal direction of the actuator 20 changes on a plane perpendicular to the left-right direction as the actuator 20 expands and contracts, and the longitudinal direction of the actuator 21 changes on a plane perpendicular to the left-right direction depending on the expansion and contraction of the actuator 21 .

Here, the kneading action of the treatment elements 16 and 17 will be described. When the kneading motor 14 is driven, the kneading rotating shaft 15 rotates, and the eccentric rotating bodies 18 and 19 fixed to the kneading rotating shaft 15 also rotate. The rotation of the eccentric rotating bodies 18 and 19 causes the arms AM1 and AM2 to swing up and down, left and right, and back and forth, respectively. As a result, the treatment elements 16 and 17 perform a kneading motion on the person to be treated. During the kneading operation of the treatment elements 16 and 17, the actuator 20 swings in the left-right direction about the upper end of the actuator 20 and rotates about the fixed shaft 5, and the actuator 21 moves in the left-right direction about the upper end of the actuator 21 as the fulcrum. It rocks and rotates around the fixed shaft 5 .

Next, the tapping action of the treatment elements 16 and 17 and the projection amount of the treatment elements 16 and 17 will be described. The amount of protrusion of the treatment element 16 increases as the distance between the treatment element 16 and the guide rollers 8 to 11 in the front-rear direction increases. Similarly, the greater the distance between the treatment element 17 and the guide rollers 8 to 11 in the front-rear direction, the greater the amount of protrusion of the treatment element 17 .

When the actuator 20 extends, the arm AM1 rotates clockwise as viewed from the left side with the kneading rotary shaft 15 as the fulcrum of rotation. As a result, the treatment element 16 moves upward and backward. On the other hand, when the actuator 20 contracts, the arm AM1 rotates counterclockwise with the kneading rotary shaft 15 as the fulcrum of rotation as viewed from the left side. As a result, the treatment element 16 moves downward and forward.

Therefore, by repeating expansion and contraction of the actuator 20, the treatment element 16 performs a tapping motion on the person to be treated.

Similarly, when the actuator 21 extends, the arm AM2 rotates clockwise as viewed from the left side about the kneading rotary shaft 15 as a rotation fulcrum. As a result, the treatment element 17 moves upward and backward. On the other hand, when the actuator 21 contracts, the arm AM2 rotates counterclockwise with the kneading rotating shaft 15 as the rotation fulcrum as viewed from the left side. As a result, the treatment element 17 moves downward and forward.

Therefore, by repeating expansion and contraction of the actuator 21, the treatment element 17 performs a tapping motion on the person to be treated.

As described above, the massage unit 1 realizes the tapping motion of the treatment elements 17 by the expansion and contraction of the actuators 20 and 21. Therefore, unlike the massage unit disclosed in Patent Document 1, a rotary shaft for tapping is provided to perform the treatment. This has the advantage that it is not necessary to rotate the hitting rotation shaft during the child hitting operation.

By adjusting the amplitude of expansion and contraction of the actuator 20, the amplitude of the reciprocating motion of the treatment element 16 performing the tapping motion can be adjusted. The amplitude of the reciprocating motion of child 17 can be adjusted. Further, by adjusting the expansion/contraction speed of the actuator 20, the speed of the reciprocating motion of the treatment element 16 performing the tapping motion can be adjusted. The speed of the reciprocating motion of the treatment element 17 can be adjusted.

By independently controlling the expansion and contraction of the actuator 20 and the expansion and contraction of the actuator 21, the tapping action of the treatment element 16 and the tapping action of the treatment element 17 can be made independent of each other. For example, stopping the tapping motion of the treatment element 17 during the tapping motion of the treatment element 16, stopping the tapping motion of the treatment element 17 during the tapping motion of the treatment element 17, and the tapping motion of the treatment element 16 and the treatment element 17 It is possible to simultaneously perform the tapping motion and the like in mutually different manners.

Further, by adjusting the expansion and contraction of the actuator 20, the amount of projection of the treatment element 16 can be adjusted, and by adjusting the expansion and contraction of the actuator 21, the amount of projection of the treatment element 17 can be adjusted.

When the actuators 20 and 21 contract more than the states shown in FIGS. 1 to 4, the treatment elements 16 and 17 move more forward than in the states shown in FIGS. , and 17 are larger than those shown in FIGS. Conversely, when the actuators 20 and 21 extend beyond the state shown in FIGS. 1 to 4, the treatment elements 16 and 17 move further rearward than in the state shown in FIGS. The amount of protrusion of the treatment elements 16 and 17 is smaller than the state shown in FIGS.

In the massage unit 1, the positional relationship between the rotation fulcrums at the upper ends of the actuators 20 and 21 and the rotation fulcrums of the arms AM1 and AM2 is fixed. In this specification, "positional relationship" means "relative position". Therefore, "the positional relationship between the rotation fulcrums of the upper ends of the actuators 20 and 21 and the rotation fulcrums of the arms AM1 and AM2" means "the relative position of the rotation fulcrums of the arms AM1 and AM2 with respect to the rotation fulcrums of the respective upper ends of the actuators 20 and 21. position”. More specifically, in the massage unit 1, the positional relationship between the rotation fulcrums at predetermined locations (connection locations with fasteners in this embodiment) on the upper ends of the actuators 20 and 21 and the rotation fulcrums of the arms AM1 and AM2 is fixed. ing. That is, the massage unit 1 is configured so that it is not necessary to secure an empty space in case the protrusion amount of the treatment elements 16 and 17 is reduced. If the load applied to the actuators 20 and 21 when the arms AM1 and AM2 are moved can be reduced by devising the connection form between the actuator 20 and the arm AM1 and the connection form between the actuator 21 and the arm AM2, the fastener 22 and 23 may be fixed to a fixed shaft. In this case, the positional relationship between the upper ends of actuators 20 and 21 and the pivot points of arms AM1 and AM2 is fixed.

In the massage unit 1, by controlling the actuators 20 and 21 independently of each other, the amount of protrusion of the treatment elements 16 and the amount of protrusion of the treatment elements 17 can be made different from each other. For example, when the actuator 20 contracts more than the actuator 21, the projection amount of the treatment element 16 becomes larger than the projection amount of the treatment element 17 as shown in FIG.

In the massage unit 1, by changing the center of expansion and contraction while repeating the expansion and contraction of the actuators 20 and 21, the amount of projection of the treatment elements 16 and 17 can be changed while the treatment elements 16 and 17 are beating.

<3. Modified Example of Massage Unit>
FIG. 8 is a front view of a massage unit 1' (hereinafter referred to as "massage unit 1'") according to a modification. FIG. 9 is a rear view of the massage unit 1'. FIG. 10 is a sectional view of the massage unit 1'. FIG. 10 is a cross-sectional view of the massage unit 1' taken along the line BB shown in FIGS. 8 and 9 and perpendicular to the horizontal direction. In FIG. 10, illustration of the storage part 4 is omitted. 8 to 10 that are the same as those in FIGS. 2 to 7 are denoted by the same reference numerals.

In the massage machine 100, a massage unit 1' may be used instead of the massage unit 1.

In the massage unit 1', the rotation shaft 15L for kneading and the rotation shaft 15R for kneading can rotate independently of each other. It differs from the massage unit 1 in that the shaft 15R is rotated.

By independently controlling the kneading motor 14L and the kneading motor 14R, the kneading operation of the treatment elements 16 and the kneading operation of the treatment elements 17 can be made independent of each other.

Note that, unlike the second rotation transmission part of the massage unit 1, the third rotation transmission part provided between the kneading motor 14L and the kneading rotating shaft 15L is not housed inside the housing part 4 (see FIG. 10). reference). Similarly, the fourth rotation transmission section provided between the kneading motor 14R and the kneading rotating shaft 15R is not housed inside the housing section 4 either.

Instead of the second rotation transmitting portion of the massage unit 1, the storage portion 4 stores a bearing portion that supports the right end of the kneading rotary shaft 15L and a bearing portion that supports the left end of the kneading rotary shaft 15R.

The massage unit 1 ′ is also different from the massage unit 1 in that the lifting motor 6 is attached to the rear surface of the storage section 4 instead of the right side of the storage section 4 .

<4. Others>
The above embodiments should be considered illustrative in all respects and not restrictive, and the technical scope of the present invention is indicated by the scope of claims rather than the description of the above embodiments. It should be understood that all changes that fall within the meaning and range of equivalents of the claims are included.

In order to shorten the period of reciprocating motion of the treatment elements 16 and 17 performing the tapping motion, it is necessary to shorten the period of expansion and contraction of the actuators 20 and 21 . Therefore, if the response performance of the actuators 20 and 21 is not so high, there is a possibility that the cycle of the reciprocating motion of the treatment elements 16 and 17 performing the tapping action cannot be shortened to the desired value. Therefore, a vibrator (for example, a vibration motor) may be incorporated in the treatment elements 16 and 17, and the short-period reciprocating motion of the treatment elements 16 and 17 performing the tapping operation may be generated by the vibration of the vibrator.

For example, in the above embodiment, a so-called chair-type massage machine has been described as an example, but the massage unit according to the present invention can also be mounted on a so-called bed-type massage machine.

Further, for example, the fixed shaft 5 is changed to a rotating shaft, the rotating shaft is made rotatable with respect to the frame 2, the frame 3, and the storage unit 4, the guide roller 8 is fixed to the left end of the rotating shaft, and the rotating shaft The guide roller 9 may be fixed to the right end of the . In this case, it is preferable to fix the fasteners 22 and 23 to the fixed shaft 5 .

Reference Signs List 1 massage unit 5 fixed shaft 7 elevation rotary shaft 12, 13 pinion gear 15, 15L, 15R kneading rotary shaft 16, 17 treatment element 18, 19 eccentric rotating body 20, 21 actuator 100 massage machine 300 backrest 300B, 300C Guide rail AM1, AM2 Arm

Claims (5)

a therapist and
a longitudinally extendable actuator;
an arm to which the treatment element is attached at one end;
with
one end of the actuator is attached to the other end of the arm;
A first rotation fulcrum, which is a rotation fulcrum of the arm, is provided at an intermediate portion of the arm,
The positional relationship between the first rotational fulcrum and a second rotational fulcrum that is the rotational fulcrum of the other end of the actuator, or the positional relationship between the first rotational fulcrum and the other end of the actuator is fixed ,
a first rotating shaft serving as the first rotating fulcrum;
an eccentric rotating body fixed to the first rotating shaft;
the first rotating shaft supports the arm via an eccentric rotating body;
The said actuator is a massage unit which can be rock|fluctuated in the axial direction of the said 1st rotating shaft by using the other end of the said actuator as a fulcrum . A fixed shaft parallel to the first rotation axis,
2. The massage unit according to claim 1 , wherein the other end of said actuator is attached to said fixed shaft. a second rotation axis parallel to the first rotation axis;
a pinion gear provided at the end of the second rotating shaft;
3. A massage unit according to claim 1 or claim 2 , comprising: The massage unit according to any one of claims 1 to 3 , wherein the treatment element has a vibrator. A massage unit according to any one of claims 1 to 4 ;
a body support part that supports the body of the user;
a guide rail extending along a surface of the body support that contacts the body;
with
A massage machine, wherein the massage unit is guided by the guide rail to move up and down within the body support section.

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