JPS6220202Y2 - - Google Patents

Description

[Detailed Description of the Invention] Technical Field The present invention relates to a pine surge device that performs pine surge using fir balls.

Conventional technology Conventionally, a pine surge device that presses the neck, back, etc. of a human body with a massage ball has an eccentric shaft extending outside the case that is connected to a drive motor provided inside the case via a transmission means such as a gear. Generally, a massaging ball is provided at the tip of an eccentric shaft that moves eccentrically as the drive motor rotates. This device applies pine surge and acupressure effects to affected areas of the human body by means of a fir ball that moves eccentrically along with an eccentric shaft.

FIGS. 1 and 2 show the basic structure of an example of a conventional pine surge device. 1 is a drive motor, 2 is a worm gear connected to the drive motor 1, and 3 is a pair of helical gears that mesh with the worm gear 2.
Eccentric shafts 4 eccentric by a predetermined angle are connected to the shafts of the helical gears 3, and a rice ball 5 is provided at one end of each eccentric shaft 4.

Now, with the above-mentioned pine serge machine that has a pair of fir balls separated by a predetermined distance, if the distance between the fir balls can be adjusted, more effective pine surge can be performed for users of different physiques. It is preferable. Therefore, in the conventional pine surge machine as shown in FIGS. 1 and 2, the distance between the rice balls is adjusted by moving the helical gear 3 on the worm gear 2. but,
In such an adjustment, it is difficult to maintain the meshing distance between the worm gear and the helical gear at the same distance, and this has the disadvantage of significantly shortening the life of the gear due to gear wear, crushing, etc.
Further, since the spacing is adjusted by moving each of the rice balls separately, there are other problems such as the operation for adjustment is extremely troublesome.

Therefore, in order to solve the above-mentioned problems of the conventional pine surge device, in a patent application filed on the same day as the present application, the applicant of the present application has provided a connecting shaft with an eccentric joint at a position offset from the center of the fir ball, and A connecting rod is provided to change the position of the rice balls by rotating the balls around a connecting shaft, and one end of the connecting rod is engaged with a long hole of a rotatably provided variable gear. We proposed a pine surge device that can change the distance between the fir balls with a simple operation by moving the connecting rod and changing the position of the fir balls. However, in the case of a pine surge machine that uses a connecting rod as described above to adjust the distance between the rice balls, the connecting rod moves up and down as the rice balls are driven, so the size of the gap between the connecting rod and the eccentric joint is small. If it changed, there was a danger that fingers etc. could get caught in the gap.

Purpose The present invention was created in view of the above problem, and its purpose is to provide a pine surge device that can adjust the distance between the rice balls, and to eliminate the danger of fingers, etc. being caught between the connecting rod and the joint while the rice balls are being driven. Our goal is to provide a neutral pine surge device.

Embodiment Hereinafter, the present invention will be described in detail with reference to the drawings showing a preferred embodiment.

In FIGS. 3 to 6 showing the structure of a pine surge device according to an embodiment of the present invention, 10 is a case of the pine surge device, and 11 is a gear box provided in the case 1. 12 is gearbox 1
This is a worm gear installed in the center of the case 10, and is connected to the rotating shaft of a drive motor (not shown) separately provided inside the case 10. Reference numeral 13 designates a pair of helical gears that are pivotally supported within the gearbox 11 while meshing with the worm gear 12.
3A is rotatably supported by bearings 14 provided above and below within the gearbox 11. Note that in FIG. 3, the cross-sectional structure of the left half is completely the same as the structure of the right half, so it is omitted.
Therefore, the helical gear 13, shaft 13A, and bearing 14 are similarly arranged on the left side of the gear box 11. With the above structure, the left and right helical gears 13 rotate simultaneously in response to the rotation of the worm gear 12 by the drive motor.

An eccentric joint 15 is connected and fixed to one end of the shaft 13A of the helical gear 13. This eccentric joint 15 is positioned with one end protruding outward from a hole provided in the case 10, as shown in the figure.
Moreover, its shape forms an inclined part in which the upper end surface is inclined by a predetermined angle. 16 is a rice ball, and as shown in FIG. 4, a connecting shaft 16A is fixed at a position offset by a predetermined length r from the center of the lower end surface. The rice ball 16 is rotatably connected to the eccentric joint 15 at its connecting shaft 16A. Further, as shown in FIG. 3, the massaging balls 16 are connected in such a manner that they are inclined at an angle of the inclined portion of the eccentric joint 15 with respect to the shaft 13A of the helical gear 13 mentioned above. Since the rice balls 16 are eccentrically connected via the eccentric joint 15 as described above, as the helical gear 13 rotates, the apexes perform an eccentric movement (revolutionary movement) in which the apex traces a circular orbit with a predetermined radius.

As shown in the figure, a pair of variable gears 17 are rotatably supported by a cylindrical portion 11A that surrounds the shaft 13A of the helical gear 13 formed in the upper portion of the gear box 11. The variable gears 17 are meshed with each other, and when one rotates, the other also rotates at the same time.
This is a connecting rod fixed to part A, and has a curved shape that is bent downward as shown in the figure.
The lower end of the engagement portion 18A on the lower side of the 8 is inserted into a long hole 17A provided on the variable gear 17 facing outward. The long hole 17A is provided with a width such that the engagement portion 18A can move freely in its length direction. As described above, when the variable gear 17 rotates around the cylindrical portion 11A, the connecting rod 18 receives a force in accordance with the rotational movement of the long hole 17A and rotates together with the variable gear 17, so that the massaging ball 16 rotates around the connecting shaft 16A. And, since the connecting shaft 16A of the massaging ball 16 is provided at a position offset by the length r from the center of the massaging ball 16 as described above, the massaging ball 16 rotates around the connecting shaft 16A.
As the massaging ball 1 rotates around the connecting shaft 16A,
The position of the kneading ball 16 moves within a predetermined range. It is easy to understand that the maximum movement amount by the rotation of the kneading ball 16 is 2r because the connecting shaft 16A is offset by the length r. The above-mentioned position movement of the kneading ball 16 is performed simultaneously and symmetrically on the left and right because the variable gears 17 are meshed with each other. In FIG. 5, the variable gear 17 is rotated to move the connecting rod 18.
1 shows the change in position of the massage ball 16 when the position of the long hole 17A is moved from position A to position B (the massage ball 16 moves from the solid line portion to the dashed line portion).

Reference numeral 19 denotes an adjustment gear having a diameter sufficiently smaller than that of the variable gear 17 that is positioned in mesh with one of the variable gears 17, and is rotatably supported at a predetermined location of the case 10 by a shaft 20, and a part of the gear is rotatably supported by a shaft 20. It protrudes outside the case 10 from a notch 21 provided in the case 10. In actual use of this embodiment, the user rotates the adjustment gear 19 protruding from the case 10 with his/her finger, thereby adjusting the adjustment gear 19.
The variable gear 17 that meshes with the rice ball 9 is rotated to move the rice balls 16 described above. A stopper 22 is rotatably supported by a shaft 23 in the vicinity of the variable gear 17, and has a pawl 22A located opposite the variable gear 17 at one end, as shown.
This stopper 22 has a pawl 22A that is constantly variable gear 1.
It is biased counterclockwise by a spring (not shown) so that it is located away from 7.

Reference numeral 24 denotes a locking device that is attached to a position near the stopper 22 on the case 10 so as to be slidable by a predetermined amount.
4A and a protrusion 24B that slides within the case 10 together with the operating section 24A. Lock device 2
The projection 24B of No. 4 is close to the stopper 22 at the solid line position shown in FIG. Then, when the operating portion 24A is pressed with a finger and the protrusion 24B is slid to the position shown by the broken line in FIG.
B gradually pushes the stopper 22 in the direction of the variable gear 17. As a result, the stopper 22 rotates around the shaft 23 and the pawl 22A is wedged between the teeth of the variable gear 17, thereby stopping the rotation of the variable gear 17 and fixing the position.

Next, the operation of the pine surge device constructed as above will be explained.

When the user presses the affected area, such as the neck, on which pine surgery is to be performed, between the pair of massage balls 16 and rotates the drive motor, the aforementioned eccentric movement of the massage balls 16 causes the pressing action of the massage balls 16 to be applied to the affected area, resulting in pine surgery. It will be done. Now, in such pine surge using a pair of fir balls 16, if the interval between the fir balls 16 can be changed arbitrarily, the pine surge position can be changed, and more efficient pine surge becomes possible. Furthermore, the interval between the rice balls 16 can be adjusted according to the user's physique, which is extremely convenient. In this embodiment, when the user wants to change the spacing between the massage balls 16, the locking device 24 is released and the claw 22A of the stopper 22 confirms that the variable gear 17 is separated, and then moves the adjusting gear 19 to the left or right with his or her fingers. When turned in this direction, both the variable gears 17 that mesh with the adjustment gear 19 rotate at the same time, as described above. Due to the rotation of the variable gear 17, the rice balls 16 together with the connecting rod 18 rotate around the eccentric connecting shaft 16A. As a result, as described above, the positions of the massage balls 16 move within the range of 2r, so that the mutual spacing of the massage balls 16 can be adjusted by adjusting the amount of rotation of the adjustment gear 19.

After adjusting the distance between the rice balls 16 to the desired distance, the rotation of the variable gear 17 is stopped by sliding the operating part 24A of the locking device 24 and engaging the claw 22A of the stopper 22 into the variable gear 17. The position of the rice ball 16 is fixed.

As described above, in this embodiment, the distance between the rice balls 16 can be adjusted as desired, and the distance can be set and fixed by only extremely simple operations.

In the above-mentioned pine surge device, the connecting rod 18 moves vertically together with the massaging balls 16 due to the rotation of the eccentric joint 15, but as described above, the engaging portion 18A can be freely moved by the elongated hole 17A on the variable gear 17. Since the rice balls 16 are inserted so as to move freely, the movement of the rice balls 16 is not hindered.

Now, as shown in FIG. 7, the eccentric joint 15-1 used in the conventional pine surge device has a shaft portion inclined at a predetermined angle, and a portion of the shaft portion that is almost flush with the cover 10 of the pine surge device. This structure has a flange 15-2 for reducing the gap between the eccentric joint 15-1 and the hole provided in the case 10. When this eccentric joint 15-1 is used in a pine surge machine which is equipped with a connecting rod 18 and can adjust the spacing of the fir balls 16 like the pine surge device of this embodiment, the connecting rod 18 and the eccentric joint 15 are connected to each other as shown in FIG. -1, a gap 30 remains between the two. In such a structure, the eccentric joint 15-
Along with the eccentric movement of 1, the connecting rod 1 along with the fir balls 16
8 moves up and down, the size of the gap 30 described above changes. As a result, there was a risk that fingers or the like could get caught in the gap 30 and be injured.

Therefore, in the pine surge device according to an embodiment of the present invention, the shape of the eccentric joint 15 is changed to the third shape.
6 and 8, the side surfaces 15A and 15B of the sloping portion are formed in a curved shape extending along the shape of the connecting rod 18. By forming
The structure is such that the gap 30 between the eccentric joint 15 and the connecting rod 18 is sufficiently small. With the structure described above, the gap 30 is always constant even if the eccentric joint 15 moves eccentrically, so the gap 3
This can effectively prevent fingers or the like from getting caught in the 0.

Effects As explained above, according to the present invention, the gap between the joint and the connecting rod can be made sufficiently small, and there is no danger of fingers getting caught in the gap when driving the fir balls, resulting in a safe pine surger. becomes.

[Brief explanation of the drawing]

1 and 2 are schematic configuration diagrams of a conventional pine serge device, FIG. 3 is a sectional view of a pine surge device according to an embodiment of the present invention, and FIG. 4 is a pine surge device used in an embodiment of the present invention. A perspective view of the fir tree ball, Fig. 5 is a plan view showing a part of the inside of the pine surge device shown in Fig. 3, Fig. 6 is a perspective view showing the configuration of the variable gear and adjustment gear of the pine surge device, and Fig. 7 is an eccentric view. FIG. 8 is a sectional view showing details of the eccentric joint portion of a pine surge device according to an embodiment of the present invention. Here, 10... Case, 11... Gear box, 15... Eccentric joint, 16... Fir ball,
16A... Connection shaft, 17... Variable gear, 17A...
...Long hole, 18...Connection rod, 19...Adjustment gear, 2
2...It's a stopper.

Claims (1)

[Claims for Utility Model Registration] A drive motor, a pair of joints rotated by the drive of the drive motor, a pair of kneading balls having rotating shafts at positions offset from the center of the joints, and from the center of rotation of the joints. A pivoting means that tilts the rice balls at a predetermined angle in an deviated position and supports each of the rice balls so that they can rotate freely; a connecting rod that is fixed to each of the rice balls; a holding means that holds the other end of the connecting rod; A position defining means for defining a holding position by the holding means, and a fixing means for fixing the holding position defined by the position defining means, the upper surface shape of the joint having a small and constant gap with the connecting rod. A pine surge device characterized by having a shape that follows the connecting rod.