JPH0211256B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a pine surger that is incorporated into the backrest of a chair, bed, etc., and presses or massages the back of the human body.

[Background technology] In this type of pine surgery machine, a plurality of rollers are arranged around a rotating body, and by moving and rotating the rotating body, each roller is replaced in turn and intermittently touches the back of the human body. A technique for applying acupressure pine surge to the body is shown in Publication of Utility Model Publication No. 52-7998, etc. However, in this conventional example, the only pine surge that can be performed is the above-mentioned intermittent acupressure pine surge, and there has been a desire for something that can also provide a light pine surge.

[Object of the Invention] The present invention has been made in view of the above points, and its purpose is to provide a pine surge machine in which a plurality of rollers are attached to the circumference of the rotating body, by performing only intermittent shiatsu pine surge. The aim is to provide a pine surge machine that can obtain a light pine surge without having to rub the pine serge.

[Disclosure of the Invention] The present invention provides a rail, a drive shaft that moves along the rail, and a rotating body that is provided on the drive shaft and has a plurality of rollers rotatably attached to its periphery. In addition, a rack arranged along the rail, a pinion provided on the drive shaft that rotates the drive shaft as the drive shaft moves by meshing with the rack, and a drive shaft that is freely rotatable between the drive shaft and the drive shaft. A particular feature of the invention is that the invention further comprises: a rail, a drive shaft that moves along the rail, and a clutch means for connecting and releasing the connection in the rotational direction with the rotating body attached to the rail; a rack arranged along the rail;
A pinion that is slidably provided on the drive shaft and rotates the drive shaft as the drive shaft moves by meshing with the rack, and a rack that moves the pinion in the axial direction of the drive shaft to which a rotating body is fixed. The combined invention is characterized in that it is provided with a switching means for switching between an engaged position and a non-engaged position, and in either case, by moving the rotating body while rotating, the intermittent By moving the acupressure pine surge without rotating the rotating body, a specific roller is rolled in contact with the back surface of the human body, thereby making it possible to obtain a rubbing pine surge.

The present invention will be described in detail below based on the illustrated embodiment.The embodiment shown in FIGS. 1 to 3 is incorporated into the back of a chair, and the chair here includes a pipe frame 1, It consists of a seat cushion 2, back cushions 3 placed on both sides of the front of the backrest, a headrest 4 placed on the upper end of the backrest, a back cover 5 located between the back cushions 3 and at the center of the front of the backrest, and a pipe frame. U-shaped rails 6 with openings facing each other are fixed to the parts located on both sides of the back of the backrest 1, and a support extending from the pipe frame 1 is attached to the back of the central part of the backrest. Board 1
A feed screw 13 whose upper and lower ends are supported by bearings 4 and 15 is installed, and a belt 18 connects a pulley 16 attached to the lower end of the feed screw 13 and a pulley 22 of a motor 17 placed at the lower end of the back of the backrest. It is connected. In addition, the pair of rails 6
A rack 7 is fixed to the edge of each opening,
Limit switches 21, 21 are attached to the upper and lower ends of one rail 6, respectively.

A rotating body 9 that is a member that performs a pine surge operation and a roller 1 attached to the circumference of this rotating body 9
0 is attached to the drive shaft 8. This drive shaft 8 has rollers 20 attached to both ends that roll within the rail 6, a pinion 19 that meshes with the rack 7, and has a built-in female thread that engages with the feed screw 13. Mobile object 1
It passes through a long hole 12a formed in the backrest 2, which is long in the front-rear direction. When the feed screw 13 is rotated, the moving body 12 moves up and down, and at this time, the drive shaft 8 that moves up and down with the moving body 12 has rollers 20 at both ends rolling on the rail 6. Since it passes through the elongated hole 12a of the moving body 12, it moves up and down along the rail 6, which is bent to follow the shape of the back of the human body.
Also, since the pinions 19 at both ends are engaged with the racks 7, rotation occurs as the rack moves up and down.

Now, a pair of rotating bodies 9 are attached to the drive shaft 8 with a moving body 12 in between.
Each rotating body 9 is formed of two plates and has a trifurcated shape with three legs protruding radially.
0 is attached, and both rotating bodies 9 are attached to the inner circumference.
A sleeve 23 is inserted to connect the drive shaft 8, and the drive shaft 8 can freely rotate through the sleeve 23. Further, as shown in FIG. 3, an electromagnet having a coil 28 housed in a yoke 27 is fixed to one side of one of the rotating bodies 9. As shown in FIG. on the other hand,
The drive shaft 8 is provided with a spline 80, and a flange body 25 having a spline groove that connects with the spline 80 is attached, and is configured to rotate together with the drive shaft 8 and to be able to slide freely in the axial direction. A clutch plate 26 is attached to one surface of the flange body 25, and a pin 30 biased in the projecting direction by a spring 29 is incorporated in the clutch plate 26. Here, the clutch plate 26 and the yoke 27 face each other, and meshing teeth that mesh with each other are formed on their opposing surfaces to constitute the meshing clutch 11. When the coil 28 is energized and excited, the yoke 27 and clutch plate 2
6 are engaged with each other, and the rotation of the drive shaft 8 is transmitted to the rotating body 9. When the power supply to the coil 28 is cut off, the yoke 27 and the clutch plate 26 are pushed by the protruding pin 30 under spring bias. are separated, and the rotation of the drive shaft 8 is no longer transmitted to the rotating body 9.

If the motor 17 is rotated with the dog clutch 11 connected, the drive shaft 8 will move together with the movable body 12 due to the drive by the feed screw 13.
moves up and down, and along with this up and down movement, a rotating body 9 rotates together with a drive shaft 8. A roller 10 attached to the tip of each leg protruding from the rotating body 9 is shown in FIG. As shown, the roller 10 that presses the back of the human body through the back cover 5 is sequentially replaced, that is, it moves up and down while intermittently applying finger pressure to the back of the human body. Furthermore, when the motor 17 is rotated with the dog clutch 11 disengaged, the rotation of the drive shaft 8 is not transmitted to the rotating body 9, so that the rotating body 9 is one of the three rollers 10, as shown in FIG. The two rollers 10 are moved while being rolled so as to rub the back of the human body through the back cover 5. When the drive shaft 8 reaches the upper and lower ends of the rail 6, this is detected by the limit switches 21, 21, and the direction of rotation of the motor 17 is reversed.

Other embodiments are shown in FIGS. 4 to 6. The rotating body 9 here is directly fixed to the drive shaft 8, and no dog clutch as shown in the previous embodiment is provided. Whether or not the rotating body 9 is rotated as it moves up and down is controlled by whether or not a pinion 19 attached to the drive shaft 8 is engaged with the rack 7. The pinion 19 here is attached to the drive shaft 8 by spline portions 33 provided at both ends of the drive shaft 8 so as to be slidable in the axial direction and capable of transmitting rotation. By the pin 34 biased by the spring 35 provided in the part 33,
It is designed to be elastically locked at two locations.
If the pinion 19 is moved toward the end of the drive shaft 8 along the spline portion 33, the pinion 19 will be moved to the rack 7.
If the pinion 19 is moved in the opposite direction, the pinion 19 will not engage with the rack 7, and therefore, when the drive shaft 8 is moved up or down, the drive shaft 8 will not rotate. be.

The means for moving the pinion 19 is the guide plate 3 fixed to the upper and lower ends of the rail 6.
1 and 32. The guide plate 31 disposed at the upper end of the rail 6 moves the pinion 19 toward the center as the drive shaft 8 moves upward, and removes the pinion 19 from the position where it engages with the rack 7. A guide plate 32 provided at the lower end guides the pinion 19 toward the end of the drive shaft 8 as the drive shaft 8 moves downward, and guides the pinion 19 to a position where it engages with the rack 7. In other words, it is capable of switching without the need for a clutch.

However, in this lever pine surge machine, during upward movement, the rack 7 and the pinion 19 engage, causing the drive shaft 8 to rotate, and the rotating body 9 to rotate accordingly, as shown in FIG. Since the rack 7 and pinion 19 are not engaged during the downward movement, the pine surge is performed in the state shown in FIG. 8. When you want to obtain the pine surge shown in Fig. 7 during downward movement, or when you want to obtain the pine surge shown in Fig. 8 during upward movement, operate the switch before the pinion 19 reaches the guide plates 31, 32. The direction of rotation of the motor 17 may be reversed by

[Effects of the Invention] As described above, the specified invention provides a state in which the rotating body is rotated while moving the drive shaft by switching the clutch means, and a state in which the rotating body is not rotated only by moving the drive shaft. In the former case, the rotary body rotates with the drive shaft and each roller moves while revolving, thereby achieving acupressure pine surge that gradually changes the acupressure position, and in the latter case In this method, a roller that is in contact with the back of the human body can be used to roll the back of the human body, and in addition, rotating the rotating body utilizes the movement of the drive shaft and the rack and pinion. Therefore, it is structurally extremely simple and can be provided at low cost, and in the merged invention,
A state in which the rotating body is rotated while moving the drive shaft depending on whether the pinion is placed in the meshing position with the rack or in the non-meshing position by switching the switching means;
It is possible to select a state in which the rotating body is not rotated by simply moving the drive shaft, and in conjunction with this, the same effects as in the case of the specific invention can be achieved.

[Brief explanation of drawings]

Fig. 1 is a perspective view of one embodiment of the present invention, Fig. 2 is a horizontal sectional view of the same, Fig. 3 is a broken perspective view of the same, Fig. 4 is a perspective view of another embodiment, and Fig. 5 is the same as the above. Figure 6 is a rear view of the same, Figures 7 and 8 are the same as above.
The figure is a side view showing the operation, and 6 is a rail, 7
is a rack, 8 is a drive shaft, 9 is a rotating body, 10 is a roller, 11 is a dog clutch, and 31 and 32 are guide plates.

Claims (1)

[Claims] 1. A rail, a drive shaft that moves along the rail, and a rotating body that is provided on the drive shaft and has a plurality of rollers rotatably attached to its periphery, and A rack arranged along the rail, a pinion provided on the drive shaft and rotating the drive shaft as the drive shaft moves by meshing with the rack, and a drive shaft and a pinion attached to the drive shaft so as to freely rotate. and a clutch means for connecting and disconnecting the rotating body in the rotational direction. 2 comprises a rail, a drive shaft that moves along the rail, and a rotating body that is provided on the drive shaft and has a plurality of rollers freely rotatable around its periphery, and that is arranged along the rail. a rack, a pinion that is slidably provided on the drive shaft and rotates the drive shaft as the drive shaft moves by meshing with the rack; and a pinion that rotates the drive shaft in the axial direction of the drive shaft to which the rotating body is fixed. A pine serge machine characterized by comprising a switching means that is moved to switch between an engaged position and a non-engaged position with a rack.