JPH0410821B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a chair-type pine surge machine that has a simple structure and an excellent pine surge effect.

[Background of the invention]

It is desirable that the kneading wheel of a chair-type pine surge machine moves up and down along the backrest.
A structure as shown in Publication No.-51296 has been proposed. In the case of this conventional example, a mechanical section including a motor and a speed reduction section moves along a guide rail having a rack and a protrusion. However, forming a guide rail with gears cut to match the shape of the treatment surface has many disadvantages in terms of manufacturing strength and precision.

Furthermore, since the driving force when the mechanism moves and the pressing force that the massage wheel receives from the treatment surface are applied to the rack of the guide rail, if the weight of the user is relatively heavy, the above driving force may be applied excessively. In addition, the kneading wheel does not move smoothly, and the noise, especially the squeak, becomes louder.

There are also devices that use linear guides to allow the mechanism to move up and down in a straight line, and perform treatment using arms that extend from the mechanism, but since the kneading ring provided at the end of the arm is a free end, It is easily deformed by the pressing force from the user's back, and sufficient pressing force cannot be obtained.

[Means for solving problems]

In order to solve the above-mentioned drawbacks, the present invention provides a backrest portion 3 having a treatment surface portion 6, a mechanism portion that moves along a linear guide body 50 inside the backrest portion 3, and a mechanism portion provided on the back side of the treatment surface portion 6. The rotating shaft 8 of the mechanical section and the massaging section 18 are rotatably connected to each other by a connecting arm 24, and both sides of the rotating shaft 8 are formed along the treatment surface section 6. It is movably attached to a guide rail 20.

〔Example〕

The pine surge machine body 1 includes a seat portion 2, a backrest portion 3,
It is composed of armrest parts 4, 4 and leg parts 5. The backrest portion 3 is provided with a treatment surface portion 6 in the vertical direction, and this portion is covered with a cover 7 made of extensible fabric or the like, and on the back side, a treatment surface portion 6 is provided with a rotation shaft 8 having an eccentricity e. an eccentric wheel 9 integrally mounted on the eccentric wheel 9; a ball 10 rolling on the eccentric wheel 9;
Rising part 11 and parallel part 1 provided along the outer periphery
2. One-way clutch body 1 consisting of inclined portion 13
4. A kneading section 18 is provided, which is made up of a bearing ball 15 and an outer ring 16 that roll on the outer periphery of the clutch body 14, and a kneading ring 17 that is inclined in opposite directions. On the other hand, on the back side of the backrest part 3, guide rails 20, 20 are provided which are integrally attached to a pipe frame 19 forming the backrest frame. A guide roller 22 attached to both ends of the rotating shaft 8 of the kneading wheel 17 is rotatably housed in the surface 21 . Further, a connecting arm 24 is provided on the rotating shaft 8 via a bearing 23, and a motor base 25 and the motor base 2 are connected to the other arm 24 via a pulley shaft 30.
5, a pulley 27 attached to the drive shaft 26' of the motor 26, and a belt 28.
and a driven pulley 29 are provided. The driven pulley shaft 30 has both ends suspended by pulley bearings 32 provided on the side wall 31 of the motor base 25, and a gear 34 loosely fitted to the pulley shaft 30 by a gear bearing 33, and a worm bearing 35. A worm 36 is loosely fitted by a worm 36, and meshing surfaces 37 and 38 are formed on the opposing inner surfaces of the worm 36 and transmission surfaces 39 and 39 that engage with the meshing surfaces 37 and 38, respectively. An idler 40 is loosely inserted into the pulley shaft 30 using a positioning key 41 so as to be slidable and transmit only rotational force. The idler 40 is slidably controlled in the axial direction by a working rod 43 that engages with a groove 42 formed on its outer circumferential surface, and the working rod 43 has a fulcrum 43'.
It is connected to a plunger 46 which is driven and controlled by a solenoid 44 and a spring 45. On the other hand, the gear 34 loosely fitted onto the pulley shaft 30 is a reduction gear 47.
The worm 36 is connected to a rotating shaft gear 49 that is integrally attached to the rotating shaft 8 of the kneading wheel 17 through It meshes with a worm wheel 52 that is integrally coupled with a rotary screw 51 that engages with the guide body 50 . Further, the connecting arm 24 is rotatably and loosely connected to the pulley shaft 30 by a connecting bearing 53 provided on the pulley shaft 30, and the entire assembly constitutes a driving section.

54 is the operation part of the pine surge machine, code 6
1 is connected to the pine surge machine main body 1, and the operation switches include a back straightening and massaging selection switch 55, a massaging and pushing selection switch 56, a massaging width setting switch 57, and a massaging position control switch 5.
8. A power switch 59 is installed. This massage width setting switch 57 is connected to a flush circuit 62 as shown in FIG.
The transistor Q ₁ is activated by the conduction of the transistor Q 1 , which activates the relay 60 and starts the motor 26 . However, after the time set in advance by the resistor R ₁ and the capacitor C ₁ has elapsed, the base potential of the transistor Q ₁ becomes high. , the transistor _Q1 is turned off, the relay 60 is turned off, and the motor 26 stops rotating.

Next, the operation of this pine surge machine will be explained.
The practitioner sits on the seat 2, rests his or her back against the backrest 3, and then operates the switches on the operating section 54.

First, the power switch 59 is turned on, and then the selection switch 55 for, for example, back stretching or kneading is set to, for example, back stretching. Then, the motor 26 rotates, the solenoid 44 is energized, and the operating rod 4
3 is pulled toward the right in FIG.
0 to the left in FIG. 3, the transmission surface 39 is coupled to the engagement surface 38 of the worm 36, and the motor
6. Pulley shaft 3 transmitted via belt 28
A rotational force of 0 is transmitted to the worm 36. As the worm wheel 52 rotates and the rotary screw 51 integrated with the worm wheel 52 rotates, the kneading section 18 including the drive mechanism moves between the linear guide body 50 and the rotary screw 51.
The backrest part 3 due to the vertical thrust generated by
The massage ring 17 moves along the spine of the practitioner.
creates a back-stretching effect while applying compressive force. The vertical movement is performed by detecting the position using limit switches (not shown) attached to the upper and lower ends of the guide rail 20 and by switching the direction of rotation of the motor 26.

On the other hand, when the practitioner desires partial pine surgery, the selection switch 55 is turned on. Then, although the motor 26 continues to rotate, the solenoid 44 is released and the operating rod 43 is pulled toward the left in FIG. 3 by the spring 45. Therefore, the action rod 43 presses the idler 40 to the right in the figure via the fulcrum 43', and the transmission surface 39 and the worm 3
6 is disengaged, and now the transmission surface 39
' engages with the meshing surface 37 of the gear 34 and transmits the rotational force of the pulley shaft 30 to the gear 34. The rotational force of the lever is transmitted to the rotating shaft 8 via the reduction gear 47. At this time, if the kneading/pushing selection switch 56 of the operating section is on the "kneading" side, the rotating shaft 8 will rotate clockwise in FIG. 5. Therefore, at this time, the ball 10 first rolls clockwise on the eccentric wheel 9, but the ball 10 is immediately clamped by the inclined portion 13 of the clutch body 14 and the eccentric wheel 9, and as a result, the clutch body 14 It rotates integrally with the rotating shaft 8. Therefore, the kneading wheel 17 as a whole rotates at an incline, and this inclination rotation increases or decreases the width of the kneading wheel for the treatment area and increases or decreases the treatment depth due to the eccentricity 2×e of the eccentric wheel 9, thereby applying a kneading action. It is something to do.

If the selection switch 56 is set to "push", the motor 26 will rotate in the opposite direction as described above, the eccentric wheel 9 will rotate counterclockwise in FIG. Driving idly. Therefore, the clutch body 14 does not rotate, and as a result, the width of the massage ring 17 remains the same, and only the displacement amount 2xe by the eccentric ring 9 acts as an increase or decrease in the treatment depth, resulting in a so-called pushing effect.

However, if the practitioner wishes to adjust the treatment width during the above-mentioned pushing action (that is, increase or decrease by rotating the massage wheel), the massage width setting switch 5 can be used.
Insert 7. Then, the relay 60 is activated to reverse the rotational direction of the motor 26, and the kneading wheel 17 rotates clockwise in the figure and the kneading wheel width begins to increase or decrease, similar to the kneading operation. However, in this case, since the operating time of the relay 60 is extremely short, the kneading wheel rotates for a few minutes and then stops. Thereafter, the motor 26 rotates normally again, so that the width of the kneading wheel 17 remains at that position, that is, the width increases or decreases, and the pushing operation begins again.

In addition, during the above-mentioned back stretching operation, it is advantageous in manufacturing that the guide body 50 that causes vertical movement is a straight line, but on the other hand, as a treatment effect, the massaging section 18 can move along the skeleton of the user. It's good. Therefore, the mechanism placed on the motor base 25 linearly moves up and down along the linear guide body 50, but the kneading part 18 and the mechanism part They are connected by a connecting arm 24 which is rotatable between a connecting bearing 53 and a bearing 23. Therefore, if the guide rails 20, 20' are formed into a curve along the frame, Even if the kneading section 18 moves in a curve as the section moves up and down in a straight line, the connecting arm 24
The rotation of the pulley shaft 30 and the rotary shaft 8 allows operation without changing the distance between the shafts.

At this time, the guide rail 20 does not need to have a complicated structure such as a geared rack as in the past, and if the guide rollers 22 are housed in a rotatable manner, high precision is not required. Furthermore, the guide rail 20 does not have to be substantially U-shaped as long as it can be supported so that the massaging wheel 17 does not collapse excessively against the pressing force of the treatment surface.

In addition, in the above embodiment, the mechanism includes a motor 26.
Although the linear guide body 50 does not rotate, it is of course possible to use a mechanism in which the mechanical unit moves up and down when the linear guide body 50 rotates.

[Effect]

As described above, the present invention includes a backrest portion 3 having a treatment surface portion 6, a mechanism portion that moves along a linear guide body 50 inside the backrest portion 3, and a massager provided on the back side of the treatment surface portion 6. The rotating shaft 8 of the mechanism section and the massaging section 18 are rotatably connected to each other by a connecting arm 24, and guides are formed on both sides of the rotating shaft 8 along the treatment surface section 6. Since it is movably attached to the rail 20, the linear screw shaft 50, which is advantageous in manufacturing, can be used to realize curved movement of the massaging section 18 along the treatment surface, and it can be changed by the pressing force from the user. It is possible to propose a chair-type pine surge machine that has a firm pressing force, is inexpensive, and has a high pine surge effect.

[Brief explanation of drawings]

Fig. 1 is an external view of the chair-type pine surge machine according to the present invention, Fig. 2 is a cross-sectional view, Fig. 3 is a horizontal sectional view of the mechanism, Fig. 4 is a perspective view of the drive unit, and Fig. 5 is a kneading wheel. Vertical sectional view, Figure 6 is a cross sectional view of the kneading wheel, Figure 7
The figure is an external view of the operating section, and FIG. 8 is a circuit diagram of the flash switch section. 3...Backrest part, 6...Treatment surface part, 18...
Massage section, 24...connection arm, 50...linear guide body.

Claims (1)

[Claims] 1. A backrest part 3 having a treatment surface part 6, a mechanism part that moves along a linear guide body 50 inside the backrest part 3, and a massaging part 18 provided on the back side of the treatment surface part 6, The rotating shaft 8 of the mechanism section and the massaging section 18 are rotatably connected to each other by a connecting arm 24, and both sides of the rotating shaft 8 are movably attached to guide rails 20 formed along the treatment surface section 6. A chair-type pine surge machine with the following features: