JP2012010853A - Massage unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a massage unit improving the design flexibility of a second therapeutic finger by acquiring the power of the second therapeutic finger from a massaging shaft, and capable of reducing the number of part items and cost.SOLUTION: This massage unit includes: the massaging shaft 20 having an oblique shaft 25 inclined to the shaft core of a spindle 21; a first therapeutic finger 30 which has an arm section 31 rotatably fitted around the oblique shaft, a first massaging surface 33 disposed at the tip end of the arm section and massaging an affected part of a person to be treated, and an angle regulating member 17 formed at the base end of the arm section and engaged with a chassis to regulate the integral rotation of the arm section with the massaging shaft; the second therapeutic finger 40 swingably journaled to the first therapeutic finger and having a second massaging surface 44 at the tip end for massaging the affected part of the person to be treated; an eccentric cam 27 eccentrically disposed at the shaft core of the oblique shaft; a rod 19 whose base end abuts on the eccentric cam; a guide 39 which is formed at the first therapeutic finger and in which the rod is slidably fitted; and an abutment 43 which is formed at the second therapeutic finger and on which the tip of the rod abuts.

Description

  The present invention relates to a massage unit that can pinch an affected area such as a shoulder of a user and rub it.

2. Description of the Related Art A chair type massage machine having a massage unit for performing massage on a shoulder, back and waist of a user is known.
In this kind of chair type massage machine, there is also proposed one equipped with a massage unit that can massage not only the shoulder of the user but also feels like a person is squeezing the shoulder (for example, (See Patent Document 1).

The massage unit of Patent Document 1 has a pair of first and second treatment fingers that are vertically opposed to each other on the left and right, and the first treatment finger is in response to a swinging lever that swings up and down and left and right. The second treatment finger is supported by a swing lever and is slidable with respect to the swing arm.
The swing arm is connected to the chassis so that the swing angle is regulated by spherical ball links at both ends. By swinging the swing lever up and down and left and right, the first treatment finger and the second treatment finger are connected. The treatment fingers are operated so as to be able to approach and separate from each other.

Japanese Patent No. 40467702

  Since the swing angle of the swing arm to which the first treatment finger and the second treatment finger are attached is regulated by the ball link, the swing arm is transmitted to the first treatment finger through the swing arm by swinging the swing lever. The applied force is lost in the process until it is transmitted to the first treatment finger.

  Since the first treatment finger is a treatment finger that massages the shoulder of the user from above, it is necessary to apply a strong force to the affected part of the user. When a strong force is applied to the affected part (for example, the shoulder), the swing lever bends and further loss occurs. In order to reduce the loss and obtain a feeling of itchiness, it is necessary to make the rocking lever and the rocking arm that transmit force to the first treatment finger into a robust structure. This leads to an increase in size and weight of the massage unit, an increase in the number of parts, and an increase in cost.

  Further, since the power transmission path of the second treatment finger is also via the same swinging arm as that of the first treatment finger, sufficient force is not transmitted to the second treatment finger, and a loss occurs in the process of power transmission. In addition, since the swing arm needs to support not only the first treatment finger but also the second treatment finger, the force acting on the swing arm is large, and as described above, the massage unit is increased in size and weight. , Leading to an increase in the number of parts and cost.

Furthermore, in the massage unit of Patent Document 1, the movement of the second treatment finger follows the swing of the first treatment finger with respect to the swing arm, so that the first treatment finger is deformed by the reaction force of the pressure on the affected part. However, when the movement is reduced, the movement of the second treatment finger is also reduced.
In addition, since the second treatment finger follows the movement of the first treatment finger, the timing and swing range of the second treatment finger cannot be set independently.

  An object of the present invention is to provide a massage unit that can increase the degree of freedom in designing the second treatment finger and achieve reduction in the number of parts and the cost by obtaining the power of the second treatment finger from the kneading shaft. is there.

In order to solve the above problems, the massage unit of the present invention is
The chassis,
A stagnation motor deployed in the chassis;
A rubbing shaft that is pivotally supported by the chassis and rotated by a rubbing motor, and an oblique shaft that is disposed on the left and right of the main shaft and is inclined with respect to the axis of the main shaft;
An arm portion that is rotatably fitted to the oblique axis, a first squeezing surface that is disposed at the distal end of the arm portion, massages the affected area of the user, and is formed at the base end of the arm portion, and engages with the chassis. A first treatment finger having an angle regulating member that regulates rotation of the arm portion integrally with the stagnation shaft;
A second treatment finger pivotally supported by the first treatment finger and having a second massage surface at the tip for massaging the affected area of the user;
In a massage unit having
An eccentric cam arranged eccentric to the axis of the oblique axis;
The eccentric cam has a rod whose proximal end abuts,
A guide formed on the first treatment finger, in which the rod is slidably fitted;
Formed on the second treatment finger, where the tip of the rod contacts,
Have

  According to the massage unit of the present invention, the second treatment finger receives power transmission from the rod that reciprocates by the eccentric cam formed on the kneading shaft, and is not affected by the movement of the first treatment finger. A reciprocating motion approaching and separating from the treatment finger is performed. That is, the swing of the second treatment finger is not performed via the swing arm or the first treatment finger, and the first treatment finger is also subjected to power transmission from the oblique shaft formed on the kneading shaft. Swing. Therefore, the first treatment finger and the second treatment finger can be securely pinched without being affected by the load state.

  Since the swing arm is not required and the first treatment finger simply supports the second treatment finger, it is not necessary to make the first treatment finger as robust as the conventional swing arm. In addition, there is an advantage that the first treatment finger can be made of resin or the like.

  Further, the second treatment finger can independently set the movement timing and the swing range by the eccentric angle and the eccentric amount of the eccentric cam formed on the stagnation shaft. Accordingly, the degree of freedom in designing the second treatment finger can be increased, and the number of parts and cost can be reduced.

It is the perspective view which looked at the massage unit of this invention from diagonally forward. It is the perspective view which looked at the massage unit of this invention from diagonally backward. It is a partial exploded view of the massage unit of the present invention. FIG. 4 is a sectional view taken along line IV-IV in FIG. 2. It is explanatory drawing which shows the state which the 1st treatment finger and the 2nd treatment finger separated. It is explanatory drawing which shows the state which the 1st treatment finger and the 2nd treatment finger approached. It is explanatory drawing which shows the state which is receiving the massage by the massage unit of this invention in the state where the user fell down. It is explanatory drawing which looked at FIG. 7 from a different angle. It is explanatory drawing which shows the state which is receiving the massage by the massage unit of this invention in the state where the user sat down on the chair etc. It is the perspective view which looked at the massage unit which shows the different Example of this invention from diagonally forward. It is the perspective view which looked at the massage unit which shows the different Example of this invention from diagonally backward. It is a partial exploded view of the massage unit which shows the Example from which this invention differs. It is sectional drawing which follows the line XIII-XIII of FIG. It is the perspective view which looked at the massage unit which shows the Example from which a 1st treatment finger differs from diagonally forward. It is the perspective view which looked at the massage unit which shows the Example from which a 1st treatment finger differs from diagonally back.

1 and 2 are perspective views of the massage unit (10) of the present invention, and FIG. 3 is a first treatment finger (30), a second treatment finger (40) on one side, and an end portion of the massage shaft (20). It is a figure which decomposes | disassembles and shows.
The massage unit (10) of the present invention has a first treatment finger (30) and a second treatment finger (40) on the left and right sides of the rubbing shaft (20) rotatably arranged on the chassis (12), respectively. By moving them closer and away, the affected area such as the shoulder of the user is sandwiched and massaged.

  In each figure, in order to make the internal structure of the massage unit (10) easier to understand, the cover, cushion, frame, etc. attached to the outer periphery of the massage unit (10) are removed, but they are actually used. When doing so, a cover, a cushion, a frame or the like may be attached as appropriate.

  As shown in FIGS. 1 to 3, the massage unit (10) of the present invention exemplifies a configuration that operates using a kneading motor (14) disposed vertically in the approximate center of the chassis (12) as a drive source. The stagnation motor (14) is connected to a stagnation shaft (20) via a reduction mechanism (15) with gears and the like. 20) can be rotated.

  The stagnation shaft (20) includes a straight main shaft (21) connected to the speed reduction mechanism (15) at a substantially central position, inclined shaft portions (22) attached to both left and right ends of the main shaft (21), and the inclined shaft. An eccentric cam (27) provided on the tip side of the shaft portion (22) is provided.

The inclined shaft portion (22) is a member that supports a first treatment finger (30), which will be described later, and as shown in FIGS. 3 and 4, a cylindrical shape in which the tip fitted to the main shaft (21) is cut obliquely. An oblique shaft (25) having a flange (24) attached to one end is connected to the attachment member (23). By fixing the attachment member (23) to the main shaft (21), the oblique shaft (25) is arranged to be inclined with respect to the axis of the main shaft (21).
The inclination angle of the oblique shaft (25) can be set as appropriate, and the oblique shaft (25) of the inclined shaft portion (22) arranged on both sides of the main shaft (21) projects in the same direction as shown in the figure. It can be attached so that it protrudes in the opposite direction on the left and right.

  As shown in FIGS. 3 and 4, an eccentric cam (27) projects from the inclined shaft portion (22) at a position eccentric from the axis of the oblique shaft (25). Yes. The eccentric cam (27) reciprocates a rod (19) that swings a second treatment finger (40) described later.

  The treatment finger that sandwiches the affected area of the user includes a pair of upper and lower first treatment fingers (30) and a second treatment finger (40) supported by the inclined shaft portion (22).

The first treatment finger (30) has an engagement hole (32) that is rotatably fitted to the oblique shaft (25) of the inclined shaft portion (22), and is an arm that protrudes forward when viewed from the chassis (12). And a first stagnation surface (33) that is formed at the tip of the arm (31) and presses the affected area of the user. The first massaging surface (33) is a surface that presses the shoulder from the top when massaging the shoulder of the user. It is desirable to configure to a width of about.
The first treatment finger (30) has an inclined shaft so that the engaging hole (32) is fitted in the oblique shaft (25) of the inclined shaft portion (22), and one side of the arm portion (31) comes into contact with the flange (24). It is attached to the part (22).

On the base end side of the arm part (31), an angle restricting projection (36) is formed so as to fit into an angle restricting groove (16) formed in the chassis (12) and form an angle restricting member (17). Yes. The angle restricting protrusion (36) prevents the first treatment finger (30) from rotating integrally with the stagnation shaft (20) and fits to the oblique shaft (25) of the inclined shaft portion (22). The arm portion (31) swings in the left-right direction by the rotation of the oblique shaft (25).
Thereby, the 1st treatment part (30) (30) can approach and separate mutually, and can massage a patient's affected part.

  The angle restricting groove (16) with which the angle restricting protrusion (36) forming the angle restricting member (17) is engaged can be formed in the chassis (12). The angle restricting groove (16) extends in a direction parallel to the main shaft (21). It is desirable to do.

A bracket (37) formed with a shaft hole (38) for pivotally supporting a second treatment finger (40) to be described later projects from the arm portion (31) on the tip side of the engagement hole (32). ing.
A guide (39) into which a rod (19) described later is slidably fitted is formed on one surface of the arm portion (31), that is, the outer surface opposite to the flange (24). The illustrated guide (39) is a groove recessed in the arm portion (31).
The guide (39) is formed so that the groove center is shifted in a parallel direction or a rotational direction with respect to a line connecting the center of the engagement hole (32) and the center of the shaft hole (38).

A rod (19) whose one end abuts on the eccentric cam (27) and the other end abuts on a contact (43) of a second treatment finger (40) to be described later is slidably fitted to the guide (39). Yes. The rod (19) may be a flat plate having a rectangular cross section, and as shown in FIGS. 5 and 6, when interfering with another member (for example, a shaft (42) described later), A taper may be formed at that portion.
When the stagnation shaft (20) is rotated, the rotation of the first treatment part (30) is restricted by the angle restricting member (17). Exercise. At this time, the arm portion (31) rotates coaxially with the engagement hole (32) fitted to the oblique shaft (25), so that the eccentric cam (27) rotates against the eccentric cam (27). The contacting rod (19) slides back and forth along the guide (39). The reciprocating sliding movement of the rod (19) is a power source for the swinging movement of the second treatment finger (40) described below.

The second treatment finger (40) is rotatably supported by the first treatment finger (30).
As shown in FIGS. 1 to 4, the second treatment finger (40) is formed of a member having a narrower width and a smaller length than the first treatment finger (30).
The second treatment finger (40) has a recess (41) formed on the outer surface on the base end side, and a shaft (38) that fits into the shaft hole (38) of the arm portion (31) from the side surface of the recess (41). 42) is protruding.
The recess (41) is provided with a contact (43) that abuts against the distal end of the rod (19) toward the proximal end side.
The second treatment finger (40) has the shaft (42) fitted in the shaft hole (38) of the bracket (37) and is pivotally supported by the first treatment finger (30), and the contact (43) is the rod. Deployed to contact the tip of (19).

  The tip of the second treatment finger (40) is configured as a second stagnation surface (44) facing the first stagnation surface (33) of the first treatment finger (30). The second massaging surface (44) is a surface that pushes the shoulder from behind when the user's shoulder is squeezed, and the width of the second massaging surface (44) is similar to that of a human shoulder massage. In order to obtain an effect, it is desirable that the thumb is a little wider than the thumb of the hand.

  As shown in FIGS. 5 and 6, the second treatment finger (40) has a contact (43) that closely contacts the rod (19) and that the rod (19) closely contacts the eccentric cam (27). It is desirable to urge the first treatment finger (30) away from the first treatment finger (30) by an urging means (50) such as a spring. This prevents the rod (19) from wobbling or falling off, and transmits the eccentric rotation of the eccentric cam (27) via the rod (19) to the second treatment finger (40) without play. It can be converted into the swing motion of (40).

The second treatment finger (40) approaches the first treatment finger (30) as shown in FIGS. 5 and 6 by reciprocating the rod (19) by the rotation of the eccentric cam (27). , A swinging motion is performed.
When the eccentric cam (27) rotates eccentrically and the rod (19) moves in a direction that is pushed by the eccentric cam (27) and protrudes outward, the second treatment finger (40) is brought into contact with the rod (43) 19), the second treatment finger (40) is pivotally supported by the first treatment finger (30) by the shaft (42), so that the second treatment finger (40) is centered on the shaft (42) as shown in FIG. 1 Swing in the direction approaching the treatment finger (30).
Conversely, as shown in FIG. 5, when the eccentric cam (27) further rotates, the urging force of the urging means (50) causes the rod (19) to retreat following the eccentric cam (27), and the second The treatment finger (40) swings in a direction away from the first treatment finger (30).
By repeating the above, the second treatment finger (40) performs a swinging motion that approaches and separates from the first treatment finger (30).

  With respect to the massage unit (10) having the above configuration, as shown in FIG. 7 to FIG. 9, the user can touch the first treatment finger (30) on the upper side of the shoulder and the second treatment finger (40) on the back side. When the massage unit (10) is set to the stagnation motor (14) and the stagnation motor (14) is driven, power is transmitted to the stagnation shaft (20) via the speed reduction mechanism (15), and the stagnation shaft (20) rotates. The stagnation shaft (20) rotates with the oblique shaft (25) provided on the inclined shaft portions (22) at both ends of the main shaft (21) tilted with respect to the main shaft (21), but is attached to the oblique shaft (25). The paired left and right first treatment fingers (30) are prevented from rotating integrally with the oblique axis (25) by the angle restricting member (17), so that the left and right first treatment fingers (30) are adjusted to the left and right according to the inclination of the oblique axis (25) Swings and approaches and separates from each other. Thereby, the affected part of a user can receive a press massage.

  Further, since the eccentric cam (27) is provided at a position eccentric to the oblique axis (25), as shown in FIGS. 5 and 6, the eccentric cam (27) moves in a direction away from the guide (39). In this case, the rod 19 is retracted, and the second treatment finger 40 that is in contact with the rod 19 is moved away from the first treatment finger 30, that is, the first treatment finger 30 and the first treatment finger 30. 2 Swing in the direction to open between the treatment fingers (40).

  From this state, when the eccentric cam (27) further rotates and moves in a direction approaching the guide (39), the rod (19) advances and the rod (19) hits the second treatment finger (40) (43). Is pushed forward, the second treatment finger (40) approaches the first treatment finger (30) around the axis (42), that is, the first treatment finger (30) and the second treatment finger (40 Oscillates in a direction that narrows the distance to.

As described above, the second treatment finger (40) is moved closer to and away from the first treatment finger (30), so that the massaged part is massaged and massaged. This pinching operation includes the first treatment finger (30) having the first pinching surface (33) having the same width as the four fingers of the human hand and the second pinching surface (44) having the same width as the human thumb. Since it is performed by the second treatment finger (40) having the above, it is possible to obtain a feeling as if a person is shouldering.
Further, during the pinching, the first treatment finger (30) swings left and right, and the second treatment finger (40) pivotally supported by the first treatment finger (30) also follows and swings. You can experience a massage like picking your shoulders while taking a shiatsu.

Since the first treatment finger (30) is directly supported by the oblique axis (25) without using the swing arm described in the prior art document, most of the force transmitted from the oblique axis (25) is obtained. It can act on the affected area without loss.
In addition, since the second treatment finger (40) also receives a swinging force from the eccentric cam (27) through the rod (19) that slides, the loss of the transmitted force is suppressed as compared with the conventional treatment finger (40). Can do. In addition, since it is not affected by the movement of the first treatment finger (30), it can be pinched between the first treatment finger (30) and the second treatment finger (40) without being affected by the load state. it can.
Accordingly, the first treatment finger (30) and the second treatment finger (40) do not need to be constructed as in the conventional manner, and can be made of resin or the like, and the first treatment finger (30). And the number of parts for moving the 2nd treatment finger (40) can be reduced. Therefore, weight reduction, size reduction, and cost reduction of the massage unit (10) can be achieved.

By appropriately setting the amount of eccentricity of the eccentric cam (27) to the oblique axis (25), the eccentric angle diameter, etc., the swing range of the second treatment finger (40), that is, the first treatment finger (30) and the first treatment finger (30) 2 The width of the pinching with the treatment finger (40) and the timing of pinching can be changed.
Although the outer peripheral shape of the eccentric cam (27) is circular in this embodiment, the approach time of the first treatment finger (30) and the second treatment finger (40) can be reduced by providing an elliptical shape or providing a straight portion. It can be lengthened or shortened to provide a variety of massage massage.

The massage unit (10) of the present invention can be used as a pillow-type massage machine or placed on a bed, so that the shoulder P or the like can be seen when the user P is lying down as shown in FIGS. The affected area can be massaged. Further, as shown in FIG. 9, the affected part such as the shoulder can be massaged while the user P is seated.
The massage unit (10) of the present invention can be arranged so as to be movable up and down along the backrest portion of the chair type massage machine, and can be massaged from the shoulder of the user to the waist.

10 to 13 show that the eccentric cams (27) and (27) are formed in the middle of the inclined shafts (25) and (25) for the inclined shaft portion (22), and the first treatment finger (30) is supported from the side surface. In this embodiment, the flange (24) is provided on both sides of the oblique shafts (25) and (25).
As shown in FIGS. 12 and 13, the rod (19) is slidably fitted to a guide (39) established as a through hole in the first treatment finger (30).
The operation of the massage unit (10) is the same as in the above embodiment, but in this embodiment, the eccentric cam (27) and the rod (19) can be structured not to be exposed to the outside.
For example, when the cloth cover is attached to the massage unit (10), the rod (19) and the eccentric cam (27) or the second treatment finger (40) hit (43) by not exposing the rod (19) to the outside (43) The cloth cover can be prevented from biting between the two.
Further, as shown in FIG. 13, an attachment member (23) is also formed on the tip end side of the inclined shaft portion (22), and the attachment member (23) is supported by the chassis (12) with a bearing (not shown) or the like. If possible, since the stagnation shaft (20) is supported on both ends, the rotation of the stagnation shaft (20) can be stabilized.

14 and 15 show different embodiments of the first treatment finger (30).
The illustrated first treatment finger (30) is formed by branching the first kneading surface (33) into a plurality of portions in the longitudinal direction.
By bifurcating the first massaging surface (33), the bifurcated tip (34) presses the affected area of the user, so that it is possible to receive a massage with a sensation close to that of a person's finger.

It should be noted that a presser (35) made of a flexible member such as urethane, rubber, or sponge can be attached to each of the branched tips in order to adjust the contact with the affected area on the surface facing the affected area.
In addition, by making each branched tip from a resin of a flexible material, it is possible to adjust the hit to the affected area and provide a massage that feels like a shoulder itch by a human finger.

  INDUSTRIAL APPLICABILITY The present invention is useful as a massage unit having treatment fingers that can grasp and squeeze the affected area of the user.

(10) Massage unit
(14) Itching motor
(16) Angle regulation groove
(17) Angle regulating member
(19) Rod
(20) Sprung shaft
(22) Inclined shaft
(25) Oblique axis
(27) Eccentric cam
(30) First treatment finger
(31) Arm
(33) First grudge
(36) Angle regulating protrusion
(39) Guide
(40) Second treatment finger
(43) Win
(44) Second grudge

Claims (6)

The chassis,
A stagnation motor deployed in the chassis;
A rubbing shaft that is pivotally supported by the chassis and rotated by a rubbing motor, and an oblique shaft that is disposed on the left and right of the main shaft and is inclined with respect to the axis of the main shaft;
An arm portion that is rotatably fitted to the oblique axis, a first squeezing surface that is provided at the distal end of the arm portion, massages the affected area of the user, and is formed at the base end of the arm portion, and engages with the chassis. A first treatment finger having an angle regulating member that regulates rotation of the arm portion integrally with the stagnation shaft;
A second treatment finger pivotally supported by the first treatment finger and having a second massage surface at the tip for massaging the affected area of the user;
In a massage unit having
An eccentric cam arranged eccentric to the axis of the oblique axis;
The eccentric cam has a rod whose proximal end abuts,
A guide formed on the first treatment finger, in which the rod is slidably fitted;
Formed on the second treatment finger, where the tip of the rod contacts,
A massage unit characterized by comprising:   The massage unit according to claim 1, wherein the second treatment finger is urged by the urging member so that the contact comes into contact with the rod.   The massaging unit according to claim 1 or 2, wherein the eccentric cam is formed at an end portion of the oblique shaft, and the guide is a groove formed on the end surface of the first treatment finger.   The massaging unit according to claim 1 or 2, wherein the eccentric cam is formed in the middle of the oblique axis, and the guide is a through hole formed in the first treatment finger.   The massage unit according to any one of claims 1 to 4, wherein the first treatment finger has a plurality of distal ends of the first kneading surface branched in the longitudinal direction.   The massage unit according to claim 5, wherein a pressing member made of a flexible member is attached to each of the branched tips of the first massaging surface on the surface facing the second treatment finger.

Images