JP2000350756A - Chair-type massager - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify the structure of a massager and secure smooth actions by constituting the massager so that each driving force of a massage driving motor and a pat driving motor is transmitted to massaging ball driving arms through each driving shaft. SOLUTION: On rotating massage output shafts 18 by driving to rotate a massage driving motor 11 of a massage action unit 12, each tip of the shafts moves on a circumference drawing a lateral conical locus. Thereby, the upper ends of the driving arms 26 make massaging action by reciprocating left and right with a rotating shaft center of a patting output shaft 21 as a fulcrum through motions of bearing piece 30, ball joint, swing joint, etc. Brackets on both ends of a patting output shaft 21 move on a circumference up and down and forward and backward by the rotary driving of a pat driving motor 13 of a pat action unit 14, giving forward and backward swinging to the upper end of the driving arm 26 to make massage balls 24 do patting action. Thus, smooth actions can be secured and structure can be simplified.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a chair-type massage machine.

[0002]

2. Description of the Related Art Recently, there has been provided a seat portion and a backrest portion,
Of these, many chair-type massage machines having a built-in massage operation unit for massaging the back of the user with respect to the backrest have been proposed. In this type of chair-type massage machine, as a form of a massage operation part, a fir output shaft transmitting an eccentric rotational force to a drive arm supporting a fir ball is connected to a tataki output shaft transmitting an eccentric rotational force. It is known that the driving of these fir output shafts or the driving of the tataki output shaft can be selectively switched by a gear changing mechanism (Japanese Patent Application No. Hei 9-1997).
No. 12892).

[0003] That is, when the drive of the fir output shaft is selected, the drive arm swings mainly in the left-right direction, causing the fir ball to move in a vertically elliptical shape in the vertical and horizontal directions. When the driving of the tack output shaft is selected, the driving arm swings mainly in the front-rear direction to cause the fir ball to reciprocate in the front-rear direction, thereby obtaining the tapping operation. It is.

[0004]

In the conventional massage machine, the massage operation section has one operation unit, and the operation unit is provided with a fir output shaft, a tack output shaft, and a gear changing mechanism. Further, a drive input is made from one motor to the gear rearrangement mechanism. Therefore, not only the structure is complicated due to the existence of the gear changing mechanism, but also it is difficult to simplify the structure in order to facilitate the changing operation in the gear changing mechanism. Further, there is a case where the motor is inevitably increased in size due to the loss of power conversion efficiency from the motor.

[0005] For these reasons, there has been little freedom in the arrangement of parts and the like around the operation unit. Therefore, there is a need for structural miniaturization and simplification around the operation unit.
It should be noted that the massage operation unit may not be able to simultaneously obtain both the fir operation and the swirl operation. The present invention has been made in view of the above circumstances, and is a chair type in which a massage operation unit provided in a backrest unit can be simplified as much as possible while ensuring smooth movement. It aims to provide a massage machine.

It is another object of the present invention to provide a chair-type massage machine capable of performing a novel and complex movement such as a combination of a fir movement and a flap movement.

[0007]

According to the present invention, the following technical measures have been taken in order to achieve the above object. That is, the chair-type massage machine according to the present invention has a seat portion and a backrest portion, and has a built-in massage operation portion for massaging the back with respect to the backrest portion. The massage operation section is configured such that a fir operation unit having a fir drive motor as a drive source drives a fir output shaft, so that a fir operation can be transmitted to a fir ball drive arm via the fir output shaft. In addition, a tataki operation unit having a tataki drive motor as a drive source drives the tataki output shaft, so that the tataki operation can be transmitted to the fir ball drive arm via the tataki output shaft.

[0008] That is, the massage operation section has operation units separately corresponding to the fir operation and the flap operation, and each operation unit is provided with a separate motor. For this reason, in this massage operation section, it is only necessary to perform electrical switching for each motor without providing a gear rearrangement mechanism, thereby simplifying the structure. Even if separate operation units are provided for the fir operation and the flap operation, the mutual operation between the operation units is not performed because of the structural simplification described above. Since the positional flexibility for avoiding the interference is increased, the provision of such two operation units does not directly lead to an increase in the size of the structure.

[0009] Further, with respect to the point that two motors of a fir drive motor and a flap drive motor are provided,
Since they are not connected to the gear changing mechanism, their power conversion efficiency is high, and therefore, it is not necessary to use a large motor in each motor. The provision of the respective motors for the fir operation and the flap operation makes it possible to obtain a novel and complex massage operation in which the fir operation and the flap operation are performed simultaneously.

The backrest section is provided with elevating means for moving the massage operation section in the height direction, and this elevating means comprises at least a fir drive motor and a flap operation unit of the fir operation unit in the massage operation section. At least with the tataki drive motor in the left-right direction of the backrest portion. With such an arrangement structure, the space in the backrest can be effectively used, and the backrest can be made thinner. In this case, if the fir operation unit and the flap operation unit are arranged so as to be displaced up and down, further compactness can be achieved.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 4 shows the appearance of one embodiment of the chair-type massage machine 1 according to the present invention. This chair type massage machine 1 has a seat 3 and a backrest 4
And has a chair shape. Armrests 6 are provided on both left and right sides of the seat 3. Further, a front hanging portion 7 is provided at a front portion of the seat portion 3. This hanging part 7
May be in a fixed state, or may be capable of swinging up and down to form a footrest.

The backrest portion 4 can be reclined by an automatic method using an electric power source, a fluid pressure cylinder or the like as a drive source (not shown) or a manual method using an appropriate link mechanism according to a desired operation. When the front hanging portion 7 is used as a footrest, the front hanging portion 7 can be vertically swayed in synchronization with the reclining operation of the backrest portion 4 or independently based on a desired operation. The backrest unit 4 has a built-in massage operation unit 8 for massaging the back.

Although not shown, the seat 3 is provided with a massaging section for the buttocks and the thigh, and the massaging section for the lower leg is provided here when the front hanging portion 7 is used as a footrest. The backrest 4 which can also be provided with elevating means 9 which makes the massage operation unit 8 movable in the height direction. Therefore, the massage operation unit 8
It can be moved up and down so that the vertical position can be adjusted according to the body type of the user (seat person), and in some cases, the vertical position can be changed as a massage menu.

As the elevating means 9, for example, an electric ball screw mechanism, a fluid pressure cylinder, a mechanism for meshing a rack and a pinion, a link mechanism, a winding drive mechanism, and the like can be used (in the illustrated example, an electric motor is used). Ball screw mechanism). In the chair-type massage machine 1 having such a basic configuration, FIGS.
As shown in the figure, the massage operation unit 8 provided on the backrest unit 4 is composed of a fir operation unit 1 having a fist drive motor 11 as a driving source and a fist drive motor 11 as a base for mounting the elevating base 10.
2 is provided, and a flap operation unit 14 that uses a flap drive motor 13 as a drive source is provided.

The fir operation unit 12 is arranged on the upper side,
The tataki motion unit 14 is arranged on the lower side. In addition, while the fir drive motor 11 of the fir operation unit 12 is arranged vertically with its rotation axis centered vertically,
The tack drive motor 13 of the tack operation unit 14 is arranged horizontally with the rotation axis centered in the left-right direction. Thus, the fir operation unit 12 and the flap operation unit 1
4 so as not to cause positional mutual interference.
Further, in the fir operation unit 12 and the flap operation unit 14, at least the fir drive motor 1
The drive motor 1 and the undercut drive motor 13 are disposed on the right side of the front of the backrest 4 with respect to the center in the left-right direction. On the other hand, the lifting means 9 (the ball screw shaft 15 in FIG.
And a nut member 16 to be screwed thereto))
The backrest 4 is disposed on the left side of the front with respect to the center in the left-right direction.

That is, the elevating means 9 and each of the motors 1
1, 1 and 13 are arranged in the backrest portion 4 in the horizontal direction. The fir operation unit 12 has two fir output shafts 18 protruding toward both the left and right sides, and is provided to the fir output shafts 18 from the fir drive motor 11 via a transmission unit 19. The rotation power can be transmitted with or without deceleration. That is,
Both fir output shafts 18 are integrally rotated by a fir drive motor 11.

Although the transmission section 19 uses a belt transmission means, other suitable transmission means can be adopted. When the rotational power from the fir drive motor 11 is to be reduced, the speed may be reduced in the transmission unit 19. On the other hand, the tataki operation unit 14 has a tataki output shaft 21 which is provided below the fir output shaft 18 with its axis oriented in the left-right direction. The rotational power given from the drive motor 13 via the transmission unit 22 can be transmitted with or without reduction. That is,
The tack output shaft 21 is rotated by a tack drive motor 13.

The fact that the power transmission unit 22 can use means other than the illustrated belt transmission means and that the power transmission unit 22 can decelerate the transmission unit 22 of the fir operation unit 12
The same as in the case of No. 9. And the fir operation unit 12
The drive arm 26 (not shown in FIG. 3) that supports the fir balls 23 and 24 is attached by the fir output shaft 18 and the flap output shaft 21 of the flap operation unit 14. The fir balls 23 and 24 are disposed vertically above and below the drive arm 26 with a support arm 27 having a side surface shape of “H”. Among them, the upper fir ball 23 is mainly used for fir operation, and the lower fir ball 24 is mainly used for flap operation.

Each of the fir balls 23, 24 uses a rotatable elastic roller. In the fir output shaft 18, the protruding end side thereof and the portion connected to the drive arm 26 are bent obliquely with respect to the rotation axis. The direction of this bending is line-symmetric about the center in the left-right direction of the backrest portion 4 on the left and right protruding end sides.
And, in this bent portion, a bearing 3 such as a bearing is provided.
0 is provided, and the drive arm 26 is directly coupled via the bearing 30.

On the other hand, an eccentric portion 31 with respect to the rotation axis is provided at the protruding end of the undercut output shaft 21 at a portion connected to the drive arm 26, as shown in FIG. The direction of this eccentricity is point-symmetric about the rotation axis of the tack output shaft 21 on the left and right tip ends. The eccentric portion 31 may be integrally formed as the tack output shaft 21 or may be formed by fitting an eccentric collar. The eccentric portion 31 is provided with a bearing 32 such as a bearing, and a bracket 33 is held around the bearing 32. The bracket 33 is connected to a connecting shaft 37 having a left-right oscillating joint 35 at the lower end and a ball joint 36 at the upper end.

The drive arm 26 is connected indirectly via the connection shaft 37. For this reason, in the massage operation unit 8 of the chair-type massage machine 1, when the fir drive motor 11 is rotationally driven in the fir operation unit 12, the fir output shafts 18 on both sides rotate. Each of the protruding end portions moves circumferentially to draw a laterally conical trajectory. Along with this, the drive arm 26 freely rotates the bearing 30,
While receiving the free swing of the ball joint 36, the free swing of the swing joint 35, the free rotation of the bearing 32, and the like, the upper end thereof swings mainly in the left-right direction while using the rotation axis of the tack output shaft 21 as a fulcrum. You will be able to give movements like

Accordingly, this movement mainly causes the upper fir ball 23 to move in a left-right direction and a vertical direction (including a slight movement component in the front-back direction) so as to draw a vertically long ellipse, and this movement is a massage operation. It corresponds to the fir operation in the inside. Further, when the tack drive motor 13 is driven to rotate in the tack operation unit 14, the tack output shaft 21 rotates, and the eccentric portions 3 on both sides are rotated.
The bracket 33 moves circumferentially in the vertical and vertical directions around one. Accordingly, the drive arm 2
6, while receiving the free rotation of the bearings 32 and 30,
With the rotation axis of the fir output shaft 18 as a fulcrum, the upper end of the fir output shaft 18 can be moved in the forward and backward directions.

Accordingly, this movement mainly causes the lower fir ball 24 to move in the front-rear direction, and this movement corresponds to a flapping operation in the massage operation.
On the other hand, the fir drive motor 1 in the fir operation unit 12
It is also possible to simultaneously perform the rotation drive 1 and the rotation drive of the tataki drive motor 13 in the tataki operation unit 14, and in this case, a novel combination of the fir operation and the tataki operation described above is provided. A complex massage operation can be obtained. The present invention can be variously modified in addition to the above embodiment.

[0024]

As is apparent from the above description, in the chair-type massage machine according to the present invention according to the present invention, the massage operation section provided on the backrest section is provided separately for the fir operation and the tataki operation. Since the operation units are provided and each operation unit is provided with an individual motor, this massage operation unit does not require a gear changing mechanism, and can simplify the structure. Moreover, since two motors are provided as described above, the power conversion efficiency of each individual device becomes high,
The smooth motion can be ensured as the massage operation section, and the size of each motor can be suppressed.

Also, by providing each motor for fir operation and for flap operation, a novel and complex massage operation in which fir operation and flap operation are performed simultaneously can be obtained. In the backrest portion, when the lifting / lowering means and the massage operation portion (at least the fir drive motor and the tataki drive motor) are arranged in the left and right direction, space can be effectively used, and the backrest portion can be made thin.

[Brief description of the drawings]

FIG. 1 is a side view of a massage operation unit.

FIG. 2 is a plan view corresponding to FIG.

FIG. 3 is a front view corresponding to FIG. 1, with a drive lever, a fir ball, and the like removed.

FIG. 4 is a perspective view showing one embodiment of a chair-type massage machine according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Chair-type massage machine 3 Seat part 4 Backrest part 8 Massage operation part 9 Elevating means 10 Elevating base 11 Fir drive motor 12 Fir operation unit 13 Taki drive motor 14 Taki operation unit 18 Fir output shaft 21 Taki output shaft 23 Fir ball 24 Fir ball 26 Drive arm 27 Support arm

Continuation of the front page F term (reference) 4C074 AA04 AA05 CC17 DD02 EE02 GG03 HH02 4C100 AA00 AD11 AD17 AE11 AF03 BB04 BC02 BC04 BC11 CA03 DA05 EA12

Claims (2)

[Claims] A seat (3) and a backrest (4);
In a chair-type massage machine having a built-in massage operation section (8) for massaging the back with respect to the backrest section (4), the massage operation section (8) includes a fir drive motor (1).
Fir operation unit (12) having 1) as a drive source
By driving the fir output shaft (18), the fir operation can be transmitted to the fir ball drive arm (26) via the fir output shaft (18), and the flap driving motor (13) is The driving operation unit (14) provided as a driving source drives the driving output shaft (21),
A chair-type massage machine characterized in that a swirling operation can be transmitted to the fir ball drive arm (26) via the swirl output shaft (21). 2. A back-and-forth means (9) for moving the massage operation part (8) in the height direction on the backrest part (4).
The lifting means (9) includes at least a fir drive motor (11) of the fir operation unit (12) in the massage operation section (8) and at least a fake drive motor (13) of the flap operation unit (14). The chair-type massage machine according to claim 1, wherein the backrest (4) is arranged in the left-right direction between the two.