JPS61347A - Treatment element moving position detector of massage machine - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Technical Field] The present invention provides a pine surge machine that detects the movement position of the treatment element by placing a treatment element on a treatment table such as a backrest of a chair or a bed. The present invention relates to a device for detecting the moving position of a therapeutic element of a machine.

[Background technology]

A device for detecting the moving position of a treatment element in a pine massage machine in which a treatment element is freely movable to a treatment table has been proposed, for example, as described in Japanese Patent Application No. 114869/1983. A stone drive shaft 21 and a drive gear 22 are formed on the treatment table to allow the treatment element 1 to move freely, and a driven gear 31 that meshes with the drive gear 22 through a gear 23 is provided around the entire outer periphery. 1 within the movement range of the treatment element 1
A pair of arcuate slits 4.5 are formed in a disc 3 that rotates within a rotational range, and a pair of sensors Sx and Sz are arranged on both sides of the disc 3, with a light emitting element 6 and a light receiving element 7 facing each other,
By rotating the disc 3 in response to the rotation of the drive shaft 2, the pair of slits 4.5 pass through and block the light emitting element 6 and the light receiving element 7, respectively, and the sensor S s @
82 is turned on and off, and the movement position of the treatment element 1 is detected by the combination of the on and off states of the sensors St and S2. Here, as is clear from FIG. 2, the positions of the pair of pick-up ports 4.5 are shifted in the circumferential direction, and each sensor s1. The relationship between on/off of s2 and the movement range of the treatment element 1 is as shown in FIG. 1O. In other words, when sensor s1 is off and Ss is on, it indicates the upper end position, and sensor Sl.

When both S8 are on, the lower end position is shown, and when sensor S1 is on, S2 is off, or both Ss+St are off, it is the middle position. Now, when a large force is applied to the massager element 1 from the outside, the massager element 1 may move beyond the preset movement range, and in this case, the entire outer periphery of the disc 3 Since the moving vehicle 31 is formed, the disk 3 also rotates in response to the movement of the treatment element 1, and the slit 4.5 formed in the disk 3 may be displaced from its normal position. Ta. For example, when the slit 4.5 of the disc 3 is at a position corresponding to the lower end of the movement of the treatment element 1, both sensors Ss*Sz are in the ON state, but a large amount of pressure is applied to the treatment element 1 in the downward direction. When an external force is applied, the treatment element 1 moves beyond the lower end position, and the disk 3 rotates in response to this, and the slit 4.5 moves to a position where the sensor S1 is turned off and the sensor Sm is turned on. . If the external force applied to the treatment element 1 is removed in this state, the position of the slit 4.5 will shift even though the treatment element 1 is located at the lower end, so the movement position will be detected. The device indicates that the treatment element 1 is at the upper end, and even if an attempt is made to move the treatment element 1 upward, it does not move and can only be moved downward, resulting in the movement range of the treatment element 1 being shifted for a long time. .

[Purpose of the invention]

The present invention has been made in view of the above points, and its object is that even if the massager moves beyond both ends of the movement, the disk rotates beyond the position corresponding to both ends of the movement of the massager. To provide a treatment element movement position detecting device for a pine surgery machine which can maintain a normal movement range of the treatment element without causing the treatment element to move.

[Disclosure of the invention]

Embodiments of the present invention will be described below with reference to FIGS. 3 to 11. This is built into a pine-surge machine in which the treatment table is made up of the backrest of a chair. A rack 9 is integrally formed on both side edges. Reference numeral 2 denotes a drive shaft, a treatment element 1 composed of a pair of wheels 11, 11 is fixed to the drive shaft 2, and the treatment element 1 and the motor W% gear box sum and control box 14 are connected to the drive shaft. 2 to form a pine surge mechanism section 10. The rotation of the motor ν is transmitted to the drive shaft 2 at a reduced speed by a speed reducer in a gear box 13, and a pinion 17 integrally formed with a cylindrical body connected to both ends of the drive shaft 2 is connected to the treatment table. By meshing with the rack 9 of 8 and rotating the drive shaft 2, the treatment element 1 can be freely moved to both side edges of the opening of the treatment table 8. Now, what happens to the treatment element movement position detection device of the pine surgical machine of the tree embodiment is that the control box 14, as is clear from FIG.
As shown in FIG. 5, it is formed near one end of the drive shaft 2 on the control box 14 side.
Drive gear 2 forming a dog clutch between it and 6.
2, a disk 41 having a driven gear 42 on its outer periphery that meshes with the drive gear 22 through the gear 23 and rotates within one rotation within the movement range of the treatment element 1; and a pair formed on the disk 41. arc-shaped slits 61 and 62, and the disk 4
It is composed of a pair of sensors st and ss in which a light-emitting element 6 and a light-receiving element 7 face each other with the light-emitting element 6 and the light-receiving element 7 sandwiching the light-emitting element 6 between them. The sensor S is turned on and off by passing through and blocking the element 7, and the other sensor S is connected to the slit 6 on the inner circumferential side.
2 is similarly turned on and off, and the movement position of the treatment element 1 is detected by the combination of the on and off states of the sensors S1 and 83.

The positions of the pair of slits 61 and 62 are shifted in the circumferential direction, and the relationship between the on/off state of each sensor 8im and gm and the movement range of the treatment element 1 is as shown in FIG. That is, when sensor S1 is off and 5sll is on, it indicates the upper end position, when both sensors 51sS and 51s are on, it indicates the lower end position, and when sensor S1 is on, Sm is off, or St.
When both S and S are off, the intermediate position is indicated. The gear 23 is composed of a large-diameter gear 24 and a small-diameter gear 25. The large-diameter gear 24 meshes with the drive gear 22, and the small-diameter gear 25 meshes with the driven gear 42 of the disk 41, so that the drive The disc 41 rotates in response to the rotation of the shaft 2, and the small-diameter gear 25 that meshes with the driven gear 42 and the sensor s1. As is clear from FIG. 5 and FIG. Said disk 41
consists of a small-diameter disk A and a large-diameter disk B having a driven gear 42 formed on its outer periphery, and as shown in FIG. A cylindrical portion 44 with openings at both ends formed at the center of a disc B having a diameter of 1.5 mm is inserted through the cylindrical portion 44, and a nut 46 is screwed into a threaded portion 45 formed on the outer circumferential wall of the cylindrical portion 44. disk A of
and a large-diameter disk B are integrally polymerized. Path'
(73F[AM['*!(711MB i.1t-1
r-! +7) (ate.

Slits 63.64 and 65.66 are formed,
As the small-diameter disk A and the large-diameter disk B are superposed, the slits 63 and 65 are integrated into a slit 61 as shown by diagonal lines in FIGS. 8(a) and 8(b).
The slits 64 and 66 are integrated to form the slit 62. A trapezoidal stopper C is integrally formed on the outer periphery of the small diameter disk A at a position corresponding to the lower end of movement of the treatment element 1 and projects from the outer periphery, and the stopper C is connected to the small diameter gear 25 and the sensor S1. *
s* are in opposing positions with the disk 41 sandwiched between them.
63 and 64 are formed at positions opposite to the lower end of the movement of the treatment element 1 and the center of the small diameter disc A, so that when the treatment element 1 moves to the lower end, it engages with the small diameter gear 25. This prevents the disk 41 from rotating. A toothless portion is formed in the driven gear 42 of the large-diameter disk B at a position corresponding to the upper end of the movement of the treatment element 1, so that the stop t
< - is configured, and the stopper D is configured as shown in FIG. Akira Ka, r! Yo9gc, pair tyvy, 'ritsu) 6
5' and 66 are formed at the upper end of the movement of the treatment element 1 at a position opposite to the shown position across the center of the large diameter disc, and mesh with the driven gear 42 when the treatment element 1 moves to the upper end. It engages with the small-diameter gear 25 to prevent rotation of the disc 41. As a result, as shown in FIG. 8(aL(b)), the disk 41 is provided with stoppers C and D for preventing rotation of the disk 41 at positions corresponding to both ends of the movement of the treatment element 1 of the driven gear 42. Here, by unscrewing the nut 46 that overlaps the small diameter disk A and the large diameter disk B and shifting the position of the small diameter disk A, the length of the slit 61.62 is changed. Since the height is freely variable and the positions of the stoppers C and D are also movable correspondingly, the movement range of the treatment element 1 is made variable.

FIG. 8(a) shows the overlapping relationship between the small-diameter disk A and the large-diameter disk B when the movement range of the treatment element 1 is increased, and FIG. Now, if the motor ratio is activated and the drive shaft 2 is rotated to move the treatment element 1, when the treatment element 1 is in the intermediate position, the driven gear 42 will move as shown in FIG. 11(a). The disk 41 rotates by meshing with the small-diameter gear 25, and when the treatment element 1 reaches the upper end of its movement, the stopper D meshes with the small-diameter gear trace, causing the disk 41 to rotate, as shown in FIG. At the same time, the sensor 8118m indicates the upper end position and outputs a signal to an operation instruction circuit (not shown) in the control box 14 to reverse the rotation of the motor ratio.
The treatment element 1 moves downward, and when the treatment element 1 reaches the lower end of movement, the stopper C engages with the small-diameter gear 25 to prevent rotation of the disk 41, as shown in FIG. 11(C). Suddenly, sensor S1. Ss indicates the lower end position, the rotation of the motor ratio is reversed, and the treatment element 1 moves upward. For example, if a large external force is applied to the treatment element 1 in the direction of pushing it downward when the treatment element 1 is located at the lower end, the treatment element 1 will move beyond the lower end, but the stopper C of the disc 41 will not move. Since it is prevented from rotating by meshing with the small-diameter gear 25, it does not rotate, and when the external force applied to the treatment element 1 is removed, the sleeves 61 and 62 of the disk 41 indicate the lower end position. Therefore, the rotation of the motor ratio can be reversed to move the treatment element 1 upward.
The same goes for the case where an external force pushing upward is applied when the treatment element 1 is located at the upper end, and the deviation in the movement range of the treatment element 1 can be small. Furthermore, even if the treatment element 1 moves when the stopper C or the stopper C is engaged with the small-diameter gear 25 and the disc 41 is prevented from rotating, the engagement formed between the drive gear □ 22 and the cylindrical body 16 is prevented. Since the clutch slips, no excessive force is applied to the small diameter gear 25, the large diameter gear 24, and the drive gear 22, so they will not be damaged. In this embodiment, the disk 42 is a small diameter disk A.
and a large-diameter disk B, but the outer periphery of one disk is formed with a driven gear 42, and the treatment element 1 of the driven gear 42 is
It goes without saying that the stoppers C and D may be constructed by forming toothless portions at one position corresponding to the upper and lower ends of the movement.

[Effects of the Invention] As described above, the present invention forms a drive gear on the drive shaft where the treatment element is freely movable on the treatment table, and a slit is formed in the disk having a driven gear on the outer periphery that meshes with the Uragi drive gear. , a light emitting element and a light receiving element are respectively disposed on both sides of the disk, and when the disk rotates in response to rotation of the drive shaft, the slit passes through the light emitting element and the light receiving element. In the treatment element movement position detecting device of the pine surge machine which performs and shuts off, stoppers for preventing the rotation of the disc are formed at positions corresponding to both ends of the movement of the treatment element of the driven gear, so that the treatment element is Since the disk is prevented from rotating by the stopper even if it exceeds both ends of movement, the effect is that the movement range of the treatment element can be maintained normally.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a conventional example, FIG. 2 is a front view of the same disc as above, and FIG. 3 is a cutaway perspective view of a pinsurge machine incorporating a moving position detection device according to an embodiment of the present invention. FIG. 4 is a cutaway rear view of the pine surge mechanism section same as above, FIG. 5 is a perspective view of an embodiment of the present invention, FIG. 6 is a front view of a small diameter disk same as above, and FIGS. 7(a) and (b). 8(a) and (b) are front views of the same disk with a large diameter, FIG. 9 is a surface cross-sectional view of the same disk, and 1θ and 1. 11(a), (b), and (c) are explanatory views of the same operation as above. 1... Treatment element, 2... Drive shaft, 3.41... Disc, 4° 5.61~ 66... Slit, 6... Light emitting element, 7... Light receiving element, 8... Treatment table, 22... Drive gear, 31.42... Driven gear, A... Small diameter Disc, B... Large diameter disc, C, D... Stopper, S
l*sx...Sensor.

Claims (2)

[Claims] (1) A drive gear is formed on a drive shaft that allows the treatment element to move freely on the treatment table, a slit is formed in a disk having a driven gear on the outer periphery that meshes with the drive gear, and a light emitting element and a light emitting element are formed on both sides of the disk. Movement of a treatment element of a massage machine in which light-receiving elements are respectively arranged, and the slit passes through and blocks the light-emitting element and the light-receiving element by rotating the disk in response to rotation of the drive shaft. A massage element movement position detection device for a massage machine, characterized in that a stopper for preventing rotation of the disc is formed at a position of the driven gear corresponding to both ends of movement of the treatment element. (2) The device for detecting the moving position of a treatment element of a massage machine according to claim 1, wherein the stopper is formed by forming a toothless portion on a driven gear.