JPH0453800Y2 - - Google Patents

Description

[Detailed description of the invention] <Technical field of the invention> This invention relates to a magnetic field generating therapeutic device that increases blood circulation and alleviates symptoms such as stiffness and pain by continuously applying an alternating magnetic field to the body. In particular, this invention relates to a new structure of a laminated iron core used in this type of treatment device.

<Background of the invention> Conventional magnetic field generating treatment devices are comprised of a magnetic field generator housed inside a box-shaped or cylindrical case body. It is held against the body surface and applies an alternating magnetic field to the affected area. The magnetic field generator described above has a laminated iron core 40 (shown in FIG. 9) in which a plurality of silicon steel plates are laminated, one of which is open.
A coil is wound around this laminated core 40 a predetermined number of times to generate an alternating magnetic field from each open end surface. When applying magnetic therapy to an affected area using this type of magnetic field generating treatment device, it is effective to apply a strong magnetic field to the affected area in a concentrated manner.
However, in order to increase the strength of the generated magnetic field, it is necessary to increase the number of turns of the coil or the number of laminated silicon steel plates, which has the disadvantage of increasing the shape of the magnetic field generator and, by extension, the shape of the entire treatment device. However, if only the number of turns of the coil is changed, there is a risk that the surface temperature of the core will rise abnormally, and if only the number of laminated silicon steel plates is increased, the weight of the core will become significantly heavier, which is not practical. There were many problems.

<Purpose of the invention> This invention is a magnetic field generation treatment that can increase the strength of the generated magnetic field by devising the shape of the laminated iron core without increasing the number of turns of the coil or the number of laminated silicon steel plates, and can concentrate the effect on the affected area. The purpose is to provide ingredients.

<Configuration and Effects of the Invention> In order to achieve the above object, in the present invention, each leg end face of a laminated core with one side open has a thickness smaller than the lamination thickness of the core and smaller than the width of the leg. A protruding body having a width is provided in a protruding manner, and lines of magnetic force are concentrated on this protruding portion.

According to the present invention, even if the size of the laminated silicon steel plates is the same as in the conventional example, the strength of the generated magnetic field can be strengthened, and the strong magnetic field can be concentrated, contributing to improved magnetic treatment effects. Therefore, since there is no need to increase the number of turns of the coil or the number of laminated silicon steel plates to strengthen the magnetic field, it is possible to prevent the temperature of the core from increasing and the weight of the core to increase, and the overall shape of the treatment device can be reduced. In addition, protrusions can be easily formed by laminating two types of silicon steel plates, one that includes the protrusions and the other, and the shape, size, and position of the protrusions. Settings such as these can be made extremely easily by simply determining the shape of the silicon steel plate.
It has a remarkable effect of achieving the purpose of the invention.

<Description of Embodiments> FIGS. 1 to 4 show a magnetic field generating treatment device according to the present invention. The illustrated example has a plurality of case bodies 2
A magnetic field generator 1 is housed and arranged inside each case, and each case body 2 is pivotally connected in a row, and connection members 3 and 4 that can be interconnected are attached to the case bodies 2 and 2 located at both ends. .

Each case body 2 is formed by abutting open end surfaces of a pair of coupling elements 5 and 6 and fixing them with screws 7 at a plurality of locations. A protrusion 8 is provided on one side and a concave groove (not shown) is provided on the other side of the mating portion of the open end surface of each coupling element 5, 6. When the coupling elements 5, 6 are brought together, the protrusion 8 and The concave grooves fit together.

Either protruding shafts 9, 9 facing in the vertical direction or bearing holes 10, 10 are formed on the side end surface of each case body 2, and between the adjacent case bodies 2, 2,
By engaging the protruding shaft 9 into the bearing hole 10, the case bodies 2, 2 are pivotally connected to each other so as to be freely rotatable.
In addition, in the connecting part of each case body 2, 2, a contact piece 11 is formed on the protruding shaft side and a stop groove 12 is formed on the bearing hole side, and when the contact piece 11 engages in the stop groove 12, the case Rotation between the bodies 2 is restricted.

Mounting shafts 13, 13 are provided at the outer ends of the case bodies 2, 2 at both end positions, and each mounting shaft 13, 1
A belt 14 constituting the connecting members 3 and 4 is attached to and arranged at 3. Surface fasteners 15 and 16 that engage with each other are attached to the tip of one belt 14 and the entire length of the other belt 14, and by engaging these surface fasteners 15 and 16 to connect the belts 14 and 14, The treatment device can be wrapped around the body and fixed in place.

As shown in FIG. 5, the magnetic field generator 1 includes a laminated iron core 20 having legs 18 and 19 at both ends of a base 17 with one side open, and a coil bobbin fitted to each leg 18 and 19. It consists of 21 and 22.
The coil bobbins 21 and 22 are formed by winding coils 25 and 26 around flanged frame bodies 23 and 24, respectively, and are fixed in the hollow interior of the case body 2 with the end faces of the legs 18 and 19 facing the one of the coupled bodies. Ru. The coils 25 and 26 of both coil bobbins 21 and 22 are connected so that the alternating magnetic fields generated by energization mutually strengthen each other, and as shown in FIG. Connect in series. Thermostats 27 and 28 are interposed in the coil connection circuit to regulate the temperature rise of the iron core 20 and coils 25 and 26. This circuit is connected to an AC power source 30 via a timer 29, and an arbitrary operating time is set by the timer 29. This timer 29 is connected to the leader line 31 as shown in FIG.
It is housed in a control case 32 attached to the tip, and a time setting camera 33 and a power-on switch 34 are provided on the top surface of the case 32.

As shown in FIG. 7, the laminated core 20 is made by laminating a plurality of silicon steel plates and forming each open end into a protruding shape. In the embodiment shown in FIG. 7, projections 37 and 38 are formed protruding from the center of each open end surface 35 and 36 of the iron core 20, that is, the end surface of each leg 18 and 19, on the inner side. , 38 are formed in a rectangular shape having a thickness smaller than the laminated thickness of the iron core 20 and a width smaller than the width of the legs 18 and 19.

When using a magnetic field generating treatment device, first, the magnetic field generating treatment device is attached and fixed by being wrapped around the body part where stiffness, pain, etc. occur. Next, set the timer 29 by shooting 33,
When the power supply switch 34 is turned on, each coil 25, 26 of each magnetic field generator 1 is energized, and the iron core 20
The superimposed magnetic flux of both coils 25 and 26 acts on the body from the end faces of the legs 18 and 19.

In this case, since protrusions 37 and 38 are provided on the end faces of the legs 18 and 19 of the iron core 20, the lines of magnetic force
As shown in FIG. 8, the magnetic field acts concentratedly on the protrusions 37 and 38, increasing the strength of the magnetic field. For example, in this embodiment, the magnetic field strength increases by about 50% compared to the conventional example shown in FIG.

Further, each case body 2 vibrates simultaneously with the generation of the magnetic field, which exerts a pine surge effect on the body, and also imparts a thermal effect to the body by generating Joule heat. The magnetic field generated by each magnetic field generator 1 exerts a concentrated effect on the affected area over a wide range and surrounds it, increasing blood circulation in the area where stiffness or pain occurs and alleviating the symptoms.

[Brief explanation of the drawing]

Figure 1 is a front view showing the overall configuration of the magnetic field generating treatment device according to this invention, Figure 2 is an enlarged cross-sectional view of the connected case body cut horizontally, and Figure 3 is a vertical view of the connected case body. 4 is a plan view showing the state of use of the magnetic field generating treatment device; FIG. 5 is a front view showing the configuration of the magnetic field generator;
Fig. 6 is a block diagram showing the electrical wiring of the magnetic field generating treatment device, Fig. 7 is a perspective view showing the structure of the laminated core, Fig. 8 is an explanatory diagram showing the distribution of the generated magnetic field, and Fig. 9 is a conventional laminated iron core. FIG. 3 is a perspective view showing the structure of the iron core. 20...Laminated core, 25, 26...Coil, 3
7,38...Protrusion.

Claims (1)

[Claims for Utility Model Registration] A laminated core made of a plurality of laminated silicon steel plates with one side open, a coil wound around the laminated core, and an alternating current voltage applied to the coil.
A magnetic field generation treatment device that generates an alternating magnetic field from each leg end face of the laminated core, wherein the laminated core has a thickness smaller than the lamination thickness of the core at each flat end face of the leg, and a thickness greater than the width of the leg. A magnetic field generating treatment device comprising protrusions each having a small width.