JPH042662Y2 - - Google Patents

Description

[Detailed description of the invention] "Field of industrial application" The present invention relates to a chair-shaped pine surgery machine equipped with a pine surgery tool on the backrest, and the main body of the pine surgery machine to which the pine surgery tool is attached and moved in various forms. This invention relates to a device for raising and lowering.

``Prior Art'' Conventionally, a screw feed mechanism or a rack-and-pinion gear mechanism has been generally used as a means for raising and lowering the main body of this type of pine surge machine.

``Problem that the invention aims to solve'' However, in the former case, due to the electric motor used to rotate the screw shaft screwed into the main body of the pine surge machine, a dead space is created at the top or bottom of the frame to which the main body is assembled. This makes the entire device larger, but the latter produces abnormal noise because the pinion gear rotates while being pressed against a fixed rack, and also causes rattling because the number of teeth on the pinion gear that meshes with the rack is extremely small. This caused problems such as making the user feel uncomfortable.

``Means for Solving the Problems'' However, the present invention has a structure in which the sprocket is engaged with a pair of left and right guide chains stretched between the bottom plate and the top plate to raise and lower the pine surge machine body. The upper and lower driving and driven sprockets provided on the upper part of the main body and the driven sprockets provided on the lower part of the main body are alternately engaged with the chain tensioned by a tension spring from the front side and the back side, while a guide roller guides the main body of the pine surge machine up and down. are rotatably supported on the upper and lower sprocket shafts.

``Operation'' Therefore, according to the present invention, the electric motor for lifting and lowering can be directly attached to the body of the pine surge machine, preventing the generation of dead space due to the motor, ensuring the desired lifting amount, and making the entire device more compact. In addition, each sprocket can be effectively engaged with the guide chain, and by using the minimum number of sprockets required, the main body of the pine surge machine can be lifted and lowered with good posture stability and supported by the guide chain. In particular, in this case, together with the guidance of the guide rollers, quieter and smoother raising and lowering is promoted, thereby improving the raising and lowering function of this pine serge machine.

"Embodiment" An embodiment of the present invention will be described below in detail based on the drawings. Fig. 1 is an explanatory diagram of the elevation of the pine surge machine body, Fig. 2 is an external perspective view of the pine surge machine as a whole, Fig. 3 is a front view of the pine surge machine body, and Fig. 4 is a rear view of the same. This chair-shaped pine surge machine is equipped with left and right kneading rollers 3, which are pine surge tools, on the surface side of a backrest 1a in which a pair of left and right elongated holes 2 are formed in parallel in the vertical direction, and a right armrest 1.
A controller box 4 buried in the outer surface of the box b is equipped with a masherage method selection switch 5, a height adjustment switch 6, and a self-propelled switch 7.

Further, a pine surge machine main body 8 to which the kneading roller 3 is attached and moves it in various forms is built into the backrest portion 1a.

As shown in FIGS. 1, 3, and 4, the pine surge machine main body 8 includes a first electric motor 9 for pine surge, a gear case 10 for converting the rotation of the motor 9 into pine surge motion, and a The second electric motor 11 is fixed to one side on the upper surface of the gear case 10, which includes a second electric motor 11 and a reduction gear case 12 that decelerates the rotation of the motor 11, and has the first electric motor 9 fixed to one side. A drive shaft 13, which is the output shaft of the reduction gear case 12, and vertical support shafts 14 and 15, whose intermediate portions are rotatably supported by the gear case 10, are connected to each other on both left and right sides of the pine surge machine body 8. Each shaft 13,
Drive and driven sprockets 16, 17, and 18 made of synthetic resin are respectively engaged and supported on both sides of the shafts 14 and 15, and the outer side of the drive sprocket 16 of the drive shaft 13 and the driven sprocket 18 of the lower support shaft 15 are connected to each other. Guide roller 1 made of synthetic resin on the outside
9 and 20 are freely rotatably supported.

It also includes a frame 21 that is the skeleton of the backrest portion 1a to which the pine surge machine main body 8 is assembled,
A bottom plate 22 that fixes the frame 21 to the inner bottom of the backrest portion 1a, and C-shaped left and right guide rails 23 that are erected and fixed in parallel on both sides of the bottom plate 22.
Left and right guide rails 23 are arranged opposite to the bottom plate 22.
It is formed into a square shape with a top plate 24 suspended horizontally on the upper end of the
The guide rollers 19 and 20 are connected to the guide rail 2.
3 is slidably fitted to the frame 21, and the pine surge machine main body 8 is supported by the frame 21 so as to be movable up and down.

Furthermore, left and right guide chains 25 are stretched inside the left and right guide rails 23, and as shown in FIG. The upper ends of each of the chains 25 are suspended from the top plate 24 via retaining pins 25, while a tension plate 28 is provided between the lower ends of the left and right guide rails 23, The lower end of the plate 28 is exposed from above to the lower surface side through a position fixing hole 29, and the plate 28 is suspended from the lower end of each chain 25 via a retaining pin 30, and a tension spring 31 is fitted therein. The left and right tension adjusting bolts 32 to be installed are exposed from above the plate 28 to the lower surface thereof through the through holes 33, and the tips of the bolts 32 are screwed into the bottom plate 22 via the fixing nuts 34, and the tension springs 31 Press the plate 28 downward with force to tension the guide chains 25 uniformly between the top plate 24 and the plate 28, and as shown in FIG. The rear side of each chain 25 is attached to each of the upper driven sprockets 17, and the rear side of each of the chains 25 is attached to each of the lower driven sprockets 18.
The rear sides of the sprockets 5 are engaged with each other, and the pine surgery machine main body 8 is moved up and down along the left and right guide rails 23 by the rotation of the drive sprockets 16.

As shown in FIG. 3, FIG. 4, and FIG.
6 are fixed facing each other, the ascending limit switch 37 is attached to the upper switch mount 35, the descending limit switch 38 is attached to the lower switch mount 36 so as to face the ascending limit switch 37, and the second motor 11 is reversed. The vertical switch 39 is mounted on the lower switch mount 36 in line with the lower limit switch 38, and the upper and lower parts are slidably supported by the upper and lower switch mounts 35 and 36, and the vertical switch 39 is mounted parallel to the lower switch mount 36. The first and second switch operating rods 4
0, 41, a return spring 43 is interposed between the lower switch mounting base 36 and a spring seat collar 42 that engages and pivots on the first switch operating rod 40 above the lower switch mounting base 36, and The push collars 44 and 45 supported by the engagement shaft are brought into contact with and supported by the ascending and descending limit switches 37 and 38, while the brake rubber for position retention is sandwiched between the lower switch mounting base 36 and the bracket 46 fixedly installed below this. tube 4
7, the lower end side of the second switch operating rod 41 is slidably inserted and supported, and a push collar 48 that is engaged and pivotally supported on the lower end of the second switch operating rod 41 is brought into contact with and supported by the changeover switch 39; Left and right switch pushing rubber tubes 50 and 51, which are attached to the gear case 10 via the lifting bracket 49, are slidably inserted into the middle of each of the operating rods 40 and 41, and the rubber tubes 50 and 51 are connected to the up and down switch mounting base 3.
Limit collars 52a, 52b, 53 on the ascending side and descending side are attached to each operating rod 40, 41 between 5 and 36.
a, 53b are engaged and supported at appropriate heights, and
A buffer spring 54 and its spring seat 5 are located above the descending side limit collar 53a of the first switch operating rod 40.
5 is provided, and each limit switch 37, 38 is operated when the height adjustment switch 6 is operated to raise or lower the pine surge machine main body 8, and when the main body 8 reaches the end position of the lifting side movement, the left switch is pushed by the rubber tube 50 to move the upper side to the upper side. By moving the first switch operating rod 40 upward via the limit collar 52a, the ascending limit switch 37 is turned off, and the second limit switch 37 is turned off.
The power supply to the electric motor 11 is cut off, and the main body 8 of the pinsurge machine is automatically stopped at the end position of the movement on the up/down side.When the main body 8 reaches the end position of the movement on the down side, the left switch is pressed and the rubber tube 50 is used to press the spring seat 55, The first switch operating rod 40 is connected to the return spring 43 via the buffer spring 54 and the limit collar 53a on the lowering side.
By moving the lower limit switch 37 downward against the
1 to automatically stop the pine surge machine main body 8 at the end position of the lowering side movement, and also make the changeover switch 39 function when the self-propelled switch 7 is operated to raise or lower the pine surge machine main body 8.
When the switch reaches the end position of the vertical movement, the right switch pushing rubber tube 51 moves the second switch operating rod 41 upward via the vertical limit collar 52b, thereby keeping the changeover switch 39 off (the second
Since the switch operating rod 41 is held in the upward movement position by the brake rubber tube 47), the direction of rotation of the second electric motor 11 is reversed, and the pine surge machine main body 8 is automatically lowered from the end position of the vertical movement. On the other hand, when the main body 8 reaches the end position of the downward movement, the right switch push rubber tube 51 pushes the second switch operating rod 4 through the downward limit collar 53b.
By moving 1 downward, the changeover switch 39
is held on (because the second switch operating rod 41 is held in the downward movement position by the brake rubber tube 47), the rotational direction of the second electric motor 11 is reversed, and the pine surge machine main body 8 is moved to the downward movement end position. The main body 8 is configured to automatically move upward and continuously move back and forth between the upward movement end position and the downward movement end position.

As shown in FIG. 7, a brake solenoid 56, which is excited in conjunction with the ON operation of the height adjustment switch 6 and the self-propelled switch 7, is engaged and supported by the motor shaft 11a of the second electric motor 11. The solenoid 56 is fixed to the side surface of the second electric motor 11, and the solenoid 56 is fixed to the side surface of the second electric motor 11. The middle part of the brake lever 58 is rotatably supported,
One end of the brake lever 58 is connected to the tip of the movable core 56a of the solenoid 56 via a pin 60, and the brake lever 58 and the solenoid 56
A compression spring 61 is fitted into the movable iron core 56a between the
The movable core 56a of the solenoid 56, which is de-energized when the switches 6 and 7 are turned off, is held protrudingly by the force of the compression spring 61, and the brake lever 58 is rotated counterclockwise about the fixed shaft 59. The tip of the lever 58 is engaged with the cam claw 57a of the brake cam 57 to restrict the rotation of the motor shaft 11a when the pine surge machine body 8 is lowered, and the pine surge machine body 8 is lowered by its own weight from the stop operation position. while holding the main body 8 in the stop operation position, while holding the movable core 56a in and out against the compression spring 61 by energizing the solenoid 56 when the switches 6 and 7 are turned on; The brake lever 58 is rotated clockwise about the fixed shaft 59, and the engagement between the tip of the lever 58 and the cam pawl 57a of the brake cam 57 is released, and the restriction on rotation of the motor shaft 11a is released. The main body 8 is configured to be able to be moved up and down.

By the way, as shown in FIG. 1, the kneading roller 3 is rotatably supported at the tip of a kneading arm 63 which has a two-pronged socket 62 fixed on its base end, and is mounted on both sides of the lower part of the gear case 10. Both sides of the kneading shaft 64 to be protruded are bent at a certain angle, and the kneading shaft 64
A holder 65 for removably inserting and fixing the socket part 62 is rotatably supported at both ends of the gear case 10, and an eccentric bub 67 is rotatably supported at both ends of a knocking shaft 66 that projects from both sides of the upper part of the gear case 10. A connecting rod 68 forming a ball joint 68a at one end is provided, and the ball joint 6 of the connecting rod 68 is attached to a ball bearing 65a formed at the upper part of the rear side of the holder 65.
8a is pivotally supported, and the other end side of the connecting rod 68 is connected to the eccentric bub 67, and when massaging is selected by the pine surge method selection switch 5, the massaging shaft 64
is rotated to move the kneading roller 3 through left-right swinging of the holder 65. At the same time, when the switch 5 selects beating, the beating shaft 66 is rotated to move the holder 65 through the eccentric bub 67 and the connecting rod 68. The kneading roller 3 is configured to perform a tapping motion by swinging back and forth.

The kneading rollers 3 are attached to the pine surge machine body 8 through the elongated holes 2 from the front side of the backrest 1a.
Insert the massaging arms 63 into the backrest portion 1a through the
This is done by inserting and fixing into 5.

This embodiment is configured as described above,
The height adjustment switch 6 lifts and lowers the pine surge machine body 8 to support the massaging rollers 3 at an appropriate height, and the pine surge method selection switch 5 selects massaging or pounding to move the massaging rollers 3 into a massaging or tapping motion. By doing this, local pine surge is performed, while the self-propelled switch 7 is turned on to automatically run the pine surge machine main body 8, which reciprocates up and down in a connected manner while massaging or tapping the massaging rollers 3. By letting
This allows you to perform general pine surgery from your waist, back, and neck.

"Effects of the Invention" As is clear from the above embodiments, in the present invention, the sprocket is engaged with a pair of left and right guide chains 25 stretched between the bottom plate 22 and the top plate 24 to move the pine serge machine body 8 up and down. In the structure, the upper and lower driving and driven sprockets 16 and 17 provided on the upper part of the pine surge machine main body 8 and the driven sprocket 18 provided on the lower part of the main body 8 are attached to the chain 25, which is tensioned by a tension spring 31, alternately from the front side and the back side. Guide rollers 19 and 2 engage with each other and guide the pine surge machine body 8 up and down.
0 to the top and bottom sprockets 16, 18 shafts 13,
15, the electric motor 11 for lifting and lowering can be directly attached to the pine surgery machine main body 8, preventing the generation of dead space due to the motor 11, and ensuring the desired amount of lifting and lowering the device. The whole can be easily made compact, and each sprocket 1 is attached to the guide chain 25.
By effectively meshing sprockets 16, 17, and 18, and using the minimum number of sprockets 16, 17, and 18 required, it is possible to raise and lower the pine surge machine body 8 supported by the guide chain 25 with good posture stability. In particular, in this case, together with the guidance of the guide rollers 19 and 20, it is possible to promote quieter and smoother lifting and lowering. It has remarkable effects such as being able to significantly improve the lifting and lowering functions.

[Brief explanation of drawings]

Figure 1 is an explanatory diagram of the elevation of the pine surge machine, Figure 2
The figure is an external perspective view of the entire pine surge machine, Figure 3 is a front view of the pine surge machine main body, and Figure 4 is a rear view of the same.
FIG. 5 is an explanatory diagram of the tensioning of the guide chain, FIG. 6 is an explanatory diagram of the lifting and lowering movement of the pine surge machine body, and FIG. 7 is a diagram illustrating the brake of the pine surge machine body. 3... Massage roller (pine surge tool), 8...
Pine surge machine body, 13... Drive shaft, 14, 15
...Support shaft, 16...Drive sprocket, 17,1
8...Driver sprocket, 25...Guide chain.

Claims (1)

[Scope of utility model registration request] In a structure in which sprockets are engaged with a pair of left and right guide chains 25 stretched between the bottom plate 22 and the top plate 24 to raise and lower the pine surge machine body 8, upper and lower driving and driven sprockets are provided on the upper part of the pine surge machine body 8. 16, 17 and main body 8
The driven sprocket 18 provided at the lower part is engaged with the chain 25, which is tensioned by a tension spring 31, alternately from the front side and the back side, while the guide roller 1 guides the pine surge machine body 8 up and down.
9, 20 are rotatably supported on the uppermost and lowermost sprockets 16, 18 and shafts 13, 15.