JPS5931339B2 - Solenoid device for electromagnetic massager - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a solenoid device used in an electromagnetic massager, and an object thereof is to provide a solenoid device for an electromagnetic massager that can be configured to be small and lightweight. be.

An embodiment of the present invention will be described below with reference to the drawings. In the figure, reference numeral 1 denotes a casing forming the massager body, one end of which has a size and shape that can be held by hand, and the other end of which is a solenoid device 2 of the present invention that serves as a drive unit.
is installed.

The solenoid device 2 for an electromagnetic massager will be described in detail below. In FIG. 5 is pivoted. The rotating body 5 has a substantially U-shaped side surface and a leg portion 5a located on one free end side of the rotating body 5, and a leg portion 5a located on the other free end side of the rotating body 5 made of a magnetic material such as iron. A suction target portion 5c consisting of
5c. These attracted parts 5c,
5c extend in opposite directions along both rotational directions of the rotating body 5, respectively. These suction target parts 5c
, 5c are provided approximately along a radius centered on the pivot portion 4. In order to do this, this embodiment uses an example in which the upper surface of the attracted part 5c is curved, as illustrated in FIG. It shows. Also, 6 is the rotating body 5
It is a cushioning material made of rubber etc. attached to the

On the other hand, the leg portion 5a is provided with a pair of abutting bodies 7, 7 as actuating portions that abut against a massaged portion such as a shoulder. These abutting bodies T, T are made of synthetic resin or a material having appropriate elasticity, and are arranged in the rotating direction of the rotating body 5. Further, as shown in FIG. 2, the pivot portion 4 has a pivot 9 fixed to the frame 3 with screws 8, 8, and the pivot 9 is rotatable in an oil-impregnated bearing 4a press-fitted into the rotating body 5. It was inserted into.

On the other hand, electromagnets 10, 10 for operating the rotating body 5 are attached to the frame 3. These electromagnets 10, 10
is the radius r before and after the rotating body 5 in its rotating direction.
The central axis of the coil 10a is substantially aligned with the coil 10a. Note that the electromagnet 10 includes a coil 10a and a main yoke 10b.
, an auxiliary yoke 10c, a coil poppin 10d, etc., and the attracted portion 5c is inserted into the coil center hole 10e. And these, electromagnet 10
, 10 are intermittently and alternately energized, for example, several times per second, by a drive circuit 11 built into the casing 1, thereby intermittently attracting the suction target portion 5c of the rotating body 5. The rotating body 5 is rotated reciprocatingly around a pivot 9. In addition, a buffer material 12 is attached to each of the electromagnets 10, 10, and these buffer materials 12, 12
also serves as a stopper that restricts the rotation range of the rotating body 5. In the massaging device configured as described above, when the power switch (not shown) is turned ON and the drive circuit 11 is energized, the electromagnet 1
0 and 10 are alternately excited and are alternately strongly and rapidly attracted to the inner side of the coil center hole 10e.
Rotates back and forth intermittently around the center.

Therefore, since the abutting bodies 7, 7 also reciprocate, the part A to be pine surged, such as a shoulder, is sandwiched between these abutting bodies 7, 7, and the pine surge is performed by the abutting bodies 7, 7. At this time, the abutting bodies 7, 7 alternately strike from different diagonal directions while sandwiching the pine surge area A, so it is not necessary to simply strike the pine surge area from the vertical direction like a conventional shoulder tapper. Instead, an effective pine surge can be achieved by adding a kneading motion and a grasping motion. By the way, according to the solenoid device 2 for an electromagnetic massaging device having the above configuration, the attracted parts 5c, 5c inserted into the coil center hole 10e of the rotating body 5 are shaped approximately along the radius r centered on the pivot 9, and By arranging the electromagnets 10, 10 at the radius r so as to substantially coincide with the central axis of the coil 10a, the solenoid device 2 can be made smaller and lighter. That is, as illustrated in FIG.
If the electromagnets 1', 10' are disposed oppositely along this axis, the displacement t of the rotating body 5' about the pivot 9' is large as shown by the chain line in FIG. , the coil 10a' of the electromagnet 1' must be formed with a coil center hole 10e' large enough to absorb the displacement t, and the electromagnet 1' becomes larger accordingly.

Furthermore, as the center hole of the coil becomes larger, the magnetic flux density passing through this hole becomes sparse and the attractive force decreases.
In order to compensate for this, it is necessary to increase the number of turns of the coil 10a', and therefore the electromagnet 1' becomes even larger. In other words, since the electromagnets 1', 1' become larger in size,
The frame etc. also become larger, and the weight of the solenoid device also increases. However, according to the structure of the present invention, the attracted parts 5c, 5c rotate on the radius r and the displacement as in the cited example is small, so it is possible to realize a reduction in size and weight, and moreover, the electromagnet 1
Since 0 and 10 do not directly face each other, further miniaturization can be achieved. Although a pair of electromagnets were used in this embodiment, it goes without saying that a single electromagnet may be used to rotate the rotary body back and forth. The present invention can also be implemented in solenoid devices used in any other equipment.

In addition, in carrying out the present invention, the specific structures, shapes, positions, etc. of the rotating body, electromagnet, actuating part, attracted part, pivot, etc. are not limited to the above-mentioned embodiment unless it is contrary to the gist thereof. It goes without saying that various configurations and implementations can be made without any modifications. As explained above, the present invention provides an attracted part of a rotary body that rotates around a pivot axis approximately along a radius centered on the pivot axis, and an electromagnet that attracts this attracted part along the radius. By arranging the coils so that their central axes substantially coincide with each other, it is possible to provide a solenoid device for an electromagnetic massager that can be made smaller and lighter.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention; FIG. 1 is a side view, partially in section, of a solenoid device used in a massaging device, FIG. 2 is a front view, partially in section, of the device, and FIG. FIG. 7 is a diagram illustrating the operation of a part of another solenoid device shown in comparison with the present invention. 2...Solenoid device, 4...Pivot part, 5...Rotating body, 5c...Suctioned part, 7
... Actuation part (contact body), 9 ... Pivot, 10 ...
···electromagnet.

Claims (1)

[Claims] 1. A solenoid device for an electromagnetic massager that is operated by inserting an attracted part made of a magnetic material in a rotary body provided with an operating part into the center hole of an electromagnet's coil, and attracting the attracted part with this electromagnet. , the attracted portion is provided approximately along a radius centered on the pivot of the rotating body, and the electromagnet is arranged so that the center axis of its coil approximately coincides with the radius. Solenoid device for electromagnetic massager.