JP2019141241A - Magnetic treatment tool - Google Patents

Abstract

To provide a magnetic treatment tool in which a magnet is accurately arranged inside a soft cord-like body, and which can exhibit stable effect of magnetic force, and makes the soft cord-like body be hardly torn.SOLUTION: A magnetic treatment tool comprises a soft cord-like body extending in the longitudinal direction, and a magnet stored inside the soft cord-like body. The magnetic treatment tool is such that: the soft cord-like body is a joined body formed by joining a first cord-like member having a trapezoidal groove on an outer peripheral surface and extending in the longitudinal direction, and a second cord-like member having a trapezoid projection corresponding to the trapezoidal groove of the first cord-like member; the first cord-like member has a recessed magnet support part formed in a recessed shape in a bottom of the trapezoidal groove; at least a part of the magnet is inserted into the recessed magnet support part; and an angle θa made by virtual lines connecting a center point of the soft cord-like body to upper end parts at both sides of the trapezoidal groove of the first cord-like member is in a range of 40 degrees or more and 150 degrees or less.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a magnetic treatment device that is used on a neck or arm and is expected to have an effect of promoting blood circulation by the action of magnetism.

  It is known that when a necklace or bracelet having a magnet is worn, effects such as blood circulation promotion can be obtained by the action of magnetism. For example, a magnetic therapy device having a flexible and bendable flexible string, a magnet accommodated in the flexible string, and a connecting device provided at both ends of the flexible string. Are known.

  Patent Document 1 discloses a magnetic therapy device having a flexible long magnetic part (soft string-like body) in which a plurality of magnets are housed in silicone rubber. In this patent document 1, as a method of manufacturing a magnetic treatment device, a mold having an upper mold and a lower mold corresponding to a magnetic part is used, and silicone rubber is set in a part corresponding to the magnetic part of the mold, A method of press molding after disposing a magnet on the set silicone rubber is disclosed.

JP 2009-18060 A

In order to stably obtain the magnetic action by the magnetic therapy device, it is necessary to accurately arrange the magnets in the flexible string-like body so that the directions and intervals of the magnets are not uneven.
However, in the press molding disclosed in Patent Document 1, since the magnetic body is disposed on the uncured silicone rubber set in the mold, it is troublesome to accurately dispose the magnet. Moreover, since the press molding is performed after the magnet is arranged, there is a possibility that the arranged magnet is displaced. In addition, when press molding is performed with a magnet sandwiched between uncured silicone rubber and uncured silicone rubber, the silicone rubber bonding area will be partially reduced, and soft cords will be used during the use of magnetic therapy devices. There is a possibility that the shaped body is easily torn at the joint portion of the silicone rubber.

  The present invention has been made in view of such problems, and its purpose is that a magnet is accurately arranged inside a flexible string-like body, and a stable magnetic force effect can be exhibited. Another object of the present invention is to provide a magnetic treatment device in which a soft string-like body is difficult to tear.

The inventor of the present invention uses the flexible string-like body as a joined body obtained by joining the first string-like member and the second string-like member, and provides a trapezoidal groove on the joining surface of the first string-like member, By forming the joining surface of the trapezoidal member into a trapezoidal shape, the bonding area between the first cord-like member and the second cord-like member is increased to increase the adhesion, and further, the bottom of the trapezoidal groove of the first cord-like member is recessed. It has been found that by providing the formed concave magnet support portion, inserting at least a part of the magnet into the concave magnet support portion, and supporting the magnet, the magnet can be accurately arranged.
Accordingly, the present invention provides the following means in order to solve the above problems.

(1) A magnetic treatment device according to one aspect of the present invention is a magnetic treatment device having a soft string-like body extending in a longitudinal direction and a magnet accommodated in the soft string-like body. The flexible string-like body includes a first string-like member extending in the longitudinal direction having a trapezoidal groove on an outer peripheral surface, and a second string-like member having a trapezoidal protrusion corresponding to the trapezoidal groove of the first string-like member. The first string-like member has a concave magnet support portion formed in a concave shape at the bottom of the trapezoidal groove, and at least a part of the magnet is inserted into the concave magnet support portion. The angle θa formed by the imaginary line connecting the center point of the flexible string-like body and the upper ends of both sides of the trapezoidal groove of the first string-like member is in the range of 40 degrees to 150 degrees. It is said.

(2) In the magnetic therapy device according to (1) above, the magnet may be an anisotropic magnet.
(3) In the magnetic therapy device according to the above (1) or (2), a first clasp portion formed on one end side of the flexible string and a second clasp portion formed on the other end side Engaging means for detachably engaging the first clasp unit and the second clasp unit is formed in at least one of the first clasp unit and the second clasp unit. It may be.

  According to the present invention, there is provided a magnetic therapy device in which magnets are accurately arranged inside a flexible string-like body, which can exert a stable magnetic force effect, and the flexible string-like body is difficult to tear. It becomes possible.

It is a top view of the magnetic therapy tool concerning the embodiment of the present invention. It is a front view which shows the state which removed the 1st clasp part and the 2nd clasp part of the magnetic therapy tool of FIG. It is sectional drawing along the longitudinal direction of A part of FIG. FIG. 4 is a cross-sectional view taken along line IV-IV in FIG. 3. It is a cross-sectional view of the 1st string-like member used for the magnetic therapy tool concerning the embodiment of the present invention. It is a conceptual diagram explaining the magnetic flux line around the anisotropic magnet used for the magnetic therapy tool concerning the embodiment of the present invention. It is a flowchart explaining the manufacturing method of the magnetic therapy tool concerning embodiment of this invention. BRIEF DESCRIPTION OF THE DRAWINGS It is a figure explaining the anisotropic magnet material and 1st string-like member which are prepared at the preparation process in the manufacturing method of the magnetic therapy apparatus concerning embodiment of this invention, Comprising: (a) is a cross section along a longitudinal direction. It is a figure and (b) is the bb line cross-sectional view of (a). It is a figure explaining the 1st string-like member which inserted the anisotropic magnet material obtained at the insertion process in the manufacturing method of the magnetic therapy equipment concerning the embodiment of the present invention, and (a) followed the longitudinal direction. It is sectional drawing, (b) is the bb line cross-sectional view of (a). It is a figure explaining the molded object obtained by the joining process in the manufacturing method of the magnetic therapy apparatus concerning embodiment of this invention, Comprising: (a) is sectional drawing along a longitudinal direction, (b) is (a). FIG.

  Hereinafter, the present invention will be described in detail with appropriate reference to the drawings. In the drawings used in the following description, in order to make the characteristics of the present invention easier to understand, there are cases where the characteristic parts are enlarged for the sake of convenience, and the dimensional ratios of the respective components are different from actual ones. is there.

  FIG. 1 is a plan view of a magnetic therapy device according to an embodiment of the present invention. FIG. 2 is a front view showing a state in which the first clasp portion 30a and the second clasp portion 30b of the magnetic therapy device of FIG. 1 are removed. 3 is a cross-sectional view taken along the longitudinal direction of portion A in FIG. 2, and FIG. 4 is a cross-sectional view taken along line IV-IV in FIG. FIG. 5 is a cross-sectional view of the first string-like member.

  As shown in FIGS. 1 to 5, the magnetic treatment device 1 of this embodiment includes a soft string-like body 10 and anisotropic magnets 20 a and 20 b housed inside the soft string-like body 10. . In the present embodiment, the two anisotropic magnets 20a and 20b are arranged so as to repel each other, that is, the same magnetic poles face the same side and are adjacent to each other, so that one strong magnetic force is generated. Part 21 is configured.

  The magnetic therapy device 1 has a first clasp portion 30a formed on one end side of the flexible string-like body 10 and a second clasp portion 30b formed on the other end side. By engaging the first clasp part 30a and the second clasp part 30b, the magnetic therapy device 1 forms a ring as shown in FIG. The magnetic treatment device 1 forming a ring is used as, for example, a magnetic necklace or a magnetic bracelet.

(Soft string)
The flexible string 10 is preferably an elastic body that can be bent in a temperature range of −60 ° C. or more and 60 ° C. or less.

  Although the cross-sectional shape of the flexible string-like body 10 is circular in this embodiment, the cross-sectional shape is not particularly limited as long as it can be bent, and may be, for example, an ellipse or a polygon. Although the diameter (phi in FIGS. 3-5) of the flexible string-like body 10 is not specifically limited, For example, it is the range of 0.3 cm or more and 2 cm or less. Further, the length of the flexible string-like body 10 in the length direction is not particularly limited. For example, the length used as a necklace is in a range of 30 cm to 70 cm, and the length used as a bracelet is 10 cm. It is the range of 30 cm or less.

  The flexible string-like body 10 includes a first string-like member 11 extending in the longitudinal direction having a trapezoidal groove 12 on the outer peripheral surface, and a second string-like shape having a trapezoidal protrusion corresponding to the trapezoidal groove 12 of the first string-like member 11. This is a joined body in which the member 15 is joined. The trapezoidal groove 12 is an isosceles trapezoid whose bottom is narrower than the opening. Since the first string-like member 11 and the second string-like member 15 are joined via the slope of the trapezoidal groove 12 and the joining area is large, the joining force between the first string-like member 11 and the second string-like member 15 Is expensive. For this reason, it becomes difficult to occur that the flexible string-like body 10 is torn during use.

  It is preferable that the 1st string-like member 11 and the 2nd string-like member 15 are formed from soft resin. Rubber and elastomer can be used as the soft resin. Examples of the rubber include silicone rubber, urethane rubber, butadiene rubber, isoprene rubber, acrylic rubber, chloroprene rubber, and fluorine rubber. Examples of elastomers include styrene elastomers, olefin elastomers, vinyl chloride elastomers, urethane elastomers, and amide elastomers. The first string-like member 11 and the second string-like member 15 may be formed from different soft resins, but are preferably formed from the same type of soft resin from the viewpoint of bonding strength. In the present embodiment, silicone rubber is used for both the first string-like member 11 and the second string-like member 15. By using silicone rubber, the flexible string-like body 10 is lightweight and flexible, and has excellent biocompatibility.

  The first string-like member 11 has a concave magnet support portion 13 formed in a concave shape at the bottom of the trapezoidal groove 12, and at least a part of the anisotropic magnets 20 a and 20 b is inserted into the concave magnet support portion 13. . In the present embodiment, portions of 50% by volume or more of the anisotropic magnets 20 a and 20 b are inserted into the concave magnet support portion 13. A portion of 50% by volume or more of the anisotropic magnets 20a and 20b is inserted into and supported by the concave magnet support portion 13, whereby the arrangement positions of the anisotropic magnets 20a and 20b are determined by the concave magnet support portion 13. Therefore, the arrangement positions of the anisotropic magnets 20a and 20b can be held with higher accuracy.

  The size of the opening of the concave magnet support portion 13 is preferably the same as or slightly narrower than the size of the bottom surfaces of the anisotropic magnets 20a and 20b (the lower surface on the side inserted into the concave magnet support portion 13). In this case, the adhesion between the concave magnet support portion 13 and the anisotropic magnets 20a and 20b is improved, the arrangement positions of the anisotropic magnets 20a and 20b are difficult to shift, and the arrangement positions of the anisotropic magnets 20a and 20b are reduced. It can be held with high accuracy. However, if the opening size of the concave magnet support portion 13 becomes too narrow, it may be difficult to insert the anisotropic magnets 20 a and 20 b into the concave magnet support portion 13. For this reason, it is preferable that the opening size of the concave magnet support part 13 is 95% or more with respect to the size of the bottom face of the anisotropic magnets 20a and 20b.

As shown in FIG. 5, the first string-like member 11 has a width A (Y direction) length A of the bottom of the trapezoidal groove 12 that is 1/2 or more with respect to the diameter φ of the flexible string-like body 10. / 5 or less is preferable. The length B in the height direction (Z direction) of the bottom of the trapezoidal groove 12 is preferably in the range of 1/2 or more and 4/5 or less with respect to the diameter φ of the flexible string-like body 10.
Further, the angle θa formed by the imaginary line connecting the center point O when the flexible string-like body 10 is formed and the upper ends C and D on both sides of the trapezoidal groove of the first string-like member is 40 degrees or more and 150 degrees or less. It is preferable to be in the range. The angle θb of the slope of the trapezoidal groove 12 is preferably 95 degrees or more.

  When the length A, the length B, the angle θa, and the angle θb are in the above ranges, the bonding area between the first string-like member 11 and the second string-like member 15 can be increased, and the first string-like member 11 is obtained. And the second string-like member 15 can be increased in bonding force. In order to increase the bonding area between the first string-like member 11 and the second string-like member 15, the angle θa is more preferably in the range of 80 degrees to 150 degrees. In addition, the angle θb is more preferably in the range of 95 degrees to 150 degrees.

  The second string-like member 15 has a concave magnet accommodating part 16 formed in a concave shape on the surface joined to the first string-like member 11, and at least a part of the anisotropic magnets 20 a, 20 b is the concave magnet accommodating part 16. Is housed in. By housing the anisotropic magnets 20a and 20b in the concave magnet housing portion 16, the adhesion between the second string-like member 15 and the anisotropic magnets 20a and 20b is improved. For this reason, the arrangement positions of the anisotropic magnets 20a and 20b are more difficult to shift, and the arrangement positions of the anisotropic magnets 20a and 20b can be more accurately maintained. Further, the bonding force between the first string-like member 11 and the second string-like member 15 becomes strong.

(Anisotropic magnet)
As shown in FIGS. 3 and 4, the anisotropic magnets 20a and 20b are preferably rectangular parallelepipeds so that the magnetization direction can be visually discerned. In the present embodiment, the length W in the width direction (Y direction), the length H in the height direction (Z direction), and the length L in the longitudinal direction (X direction) are 1: 2: 4.

  The corners and sides of the anisotropic magnets 20a and 20b are preferably chamfered or rounded. Thereby, for example, even when the soft string-like body 10 is bent excessively or when the soft string-like body 10 is excessively loaded with pressure, the anisotropic magnets 20a and 20b have fine cracks and chips. It becomes difficult to occur.

  As materials for the anisotropic magnets 20a and 20b, those normally used as magnets for magnetic therapy devices such as rare earth magnets, anisotropic ferrite magnets and anisotropic rubber magnets can be used. In the present embodiment, rare earth magnets are used as the anisotropic magnets 20a and 20b.

  In the present embodiment, one strong magnetic force generator 21 is constituted by two anisotropic magnets 20a and 20b. The strong magnetic force generation unit 21 generates a strong magnetic force capable of delivering magnetism to a far away position as compared with a single anisotropic magnet. The reason for this will be described with reference to FIG.

  FIG. 6A is a conceptual diagram showing a state of magnetic flux lines distributed around the anisotropic magnet 20 when the anisotropic magnet 20 is disposed alone. As shown by a broken line in FIG. 6A, when the anisotropic magnet 20 is arranged alone, no other magnet is arranged nearby, so the periphery of the anisotropic magnet 20 is anisotropic. A magnetic circuit is formed in which magnetic flux comes out from the N pole of the magnet 20 and returns to the S pole of the same anisotropic magnet 20 so that the magnetic flux concentrates in a region near the anisotropic magnet 20. Therefore, the magnetic flux of the anisotropic magnet 20 does not extend far from the anisotropic magnet 20.

  FIG. 6B shows the state of magnetic flux lines distributed around the anisotropic magnets 20a and 20b when two anisotropic magnets 20a and 20b having different magnetic poles facing the same side are arranged adjacent to each other. It is a conceptual diagram showing. 6B, when two anisotropic magnets 20a and 20b having different magnetic poles facing the same side are arranged so as to be adjacent to each other, as shown by a broken line in FIG. 6B, the N pole of one anisotropic magnet And the S pole of the other anisotropic magnet are arranged close to each other, so that the magnetic flux emitted from the N pole of the anisotropic magnets 20a and 20b is the S pole of another adjacent anisotropic magnet, Or return to the south pole of the same anisotropic magnet. Therefore, a magnetic circuit in which magnetic flux concentrates in a region near the anisotropic magnets 20a and 20b is formed. Therefore, the magnetic flux of the anisotropic magnets 20a and 20b does not extend far from the anisotropic magnets 20a and 20b.

  FIG. 6C shows a state of magnetic flux lines distributed around the anisotropic magnets 20a and 20b when two anisotropic magnets 20a and 20b having the same magnetic pole facing the same side are arranged adjacent to each other. It is a conceptual diagram showing. As shown by a broken line in FIG. 6C, when two anisotropic magnets 20a and 20b having the same magnetic pole facing the same side are arranged adjacent to each other, the N pole of one anisotropic magnet (Or S pole) and the N pole (or S pole) of the other anisotropic magnet are arranged close to each other, so the magnetic flux emitted from the N pole of the anisotropic magnets 20a and 20b Due to the influence of the N pole of the anisotropic magnet, the return to the S pole through the area close to the anisotropic magnet is hindered. Therefore, a magnetic circuit in which magnetic flux concentrates in a region far from the anisotropic magnets 20a and 20b is formed. Therefore, magnetism can be delivered to a position far away from the anisotropic magnets 20a and 20b (the strong magnetic force generation unit 21).

  In the present embodiment, it is necessary to align the two anisotropic magnets 20a and 20b constituting one strong magnetic force generation unit 21 so as to be aligned (parallel). When magnetizing, the direction in which the magnetic field is applied is constant, so that a prescribed magnetic field may not be obtained unless the orientation of the magnet material is uniform. Therefore, it is necessary to accurately arrange the magnet material before magnetizing inside the flexible string-like body.

(1st clasp part, 2nd clasp part)
At least one of the first clasp part 30a and the second clasp part 30b is formed with an engaging means for detachably engaging the first clasp part 30a and the second clasp part 30b. For example, a permanent magnet can be used as the engaging means.

(Production method)
Next, the manufacturing method of the magnetic therapy tool 1 of this embodiment is demonstrated with reference to FIGS.
As shown in FIG. 7, the method for manufacturing the magnetic therapy device 1 of this embodiment includes a preparation step S01, an insertion step S02, a joining step S03, and a magnetization step S04.

(Preparation process)
In the preparation step S01, anisotropic magnet materials 22a and 22b and a first string-like member 11 are prepared as shown in FIG.
The anisotropic magnet materials 22a and 22b are members that generate the anisotropic magnets 20a and 20b by magnetization. The anisotropic magnet materials 22a and 22b are rectangular parallelepipeds, and the corners and sides are chamfered or rounded. Accordingly, in the next insertion step S02, it is possible to smoothly perform the operation when inserting the concave cord support portion 13 of the first string-like member 11. The anisotropic magnet materials 22a and 22b can be produced, for example, by solidifying magnetic material powder while applying a magnetic field. As a result, anisotropic magnet materials 22a and 22b having easy axes of magnetization can be obtained.

  The first string-like member 11 is a string-like member having a trapezoidal groove 12 provided with a concave magnet support portion 13 formed in a concave shape at the bottom. The concave magnet support 13 accommodates and supports the anisotropic magnet materials 22a and 22b. Although the production method of the first string-like member 11 varies depending on the type of the soft resin as a raw material, for example, when silicone rubber is used as the soft resin, it can be produced by molding.

(Insertion process)
In the insertion step S02, as shown in FIG. 9, the anisotropic magnet members 22a and 22b are inserted into the concave magnet support portion 13 of the first string-like member 11 prepared in the preparation step S01. In this case, since the anisotropic magnet materials 22a and 22b are only inserted into the concave magnet support portion 13 of the molded first string-like member 11, the magnet material is disposed on the silicone rubber before curing as in the prior art. Compared to the above, the magnet material can be arranged with high accuracy.

(Joining process)
In the joining step S03, the second cord shape is formed on the surface of the first cord-like member 11 into which the anisotropic magnet materials 22a and 22b are inserted in the insertion step S02. Join the members. For example, when silicone rubber is used as the soft resin, as shown in FIG. 10, the first string member 11 with the anisotropic magnet materials 22a and 22b inserted is used as the first mold 41 (lower mold) and the second mold. It arrange | positions at the cylindrical metal mold | die 40 which consists of metal mold | die 42, and fills the space between the 1st string-shaped member 11 and the metal mold | die 40 with uncured silicone rubber, and then uncured silicone rubber By heating and curing, the second string-like member 15 can be generated and the first string-like member 11 and the second string-like member 15 can be joined. In this way, a molded body having the soft string-like body 10 extending in the longitudinal direction and the anisotropic magnet members 22a and 22b accommodated in the soft string-like body 10 is obtained.

(Magnetization process)
In the magnetization step S04, the anisotropic magnet materials 22a and 22b of the molded body obtained in the joining step S03 are magnetized. As a method of magnetizing the anisotropic magnet materials 22a and 22b, a magnetizer generally used for magnetizing the magnet material can be used. At this time, the magnetization is performed by aligning the magnetic field direction of magnetization and the directions of the anisotropic magnet materials 22a and 22b. Especially in the case of anisotropic magnet materials, since the easy magnetization axes are aligned, if the orientation of the anisotropic magnet materials is not aligned, each magnet is applied when magnetized by applying a magnetic field in a certain direction. There is a risk that sufficient magnetic force will not be exhibited. In the case of the present embodiment, since the anisotropic magnet materials 22a and 22b can be accurately arranged so that the directions and intervals of the anisotropic magnet materials 22a and 22b do not become nonuniform, the magnetizing step S04. A sufficient magnetic force can be obtained.

  In the magnetic therapy device 1 of the present embodiment configured as described above, at least a part of the anisotropic magnets 20a and 20b is inserted into the concave magnet support portion 13 of the first string-like member 11, and is anisotropic. Since the anisotropic magnets 20a and 20b are supported, the anisotropic magnets 20a and 20b can be accurately arranged. Further, the flexible string-like body 10 is a joined body in which the first string-like member 11 having the trapezoidal groove 12 and the second string-like member 15 having the trapezoidal protrusion are joined. Since the string-like member 15 is joined via the slope of the trapezoidal groove 12, the joining area between the first string-like member 11 and the second string-like member 15 is increased, and the flexible string-like body 10 is difficult to tear during use. Become.

  In the manufacturing method of the magnetic therapy device 1 of the present embodiment, after inserting the anisotropic magnet materials 22a and 22b into the concave magnet support portion 13 of the first string-like member 11 in the insertion step S02, in the joining step S03, Since the 1st string-like member 11 and the 2nd string-like member 15 are joined, anisotropic magnet material 22a, 22b can be arrange | positioned accurately. Further, in the joining step S03, the first string-like member 11 having the trapezoidal groove 12 and the second string-like member 15 having the trapezoidal protrusion are joined via the slope of the trapezoidal groove 12, so that the first string-like member 11 and A joining area with the 2nd string-like member 15 becomes large. And since the anisotropic magnet materials 22a and 22b are magnetized in the state arrange | positioned accurately in the inside of the soft string-like body 10 by magnetizing process S04, the magnetic force of the anisotropic magnets 20a and 20b is stabilized. Therefore, according to the manufacturing method of the present embodiment, it is possible to manufacture the magnetic therapy device 1 in which the anisotropic magnets 20a and 20b can be accurately arranged and the flexible string-like body 10 is difficult to tear during use. it can.

  The embodiment of the present invention has been described above with reference to the drawings. However, each configuration in the present embodiment and combinations thereof are examples, and the addition and omission of configurations are within the scope not departing from the gist of the present invention. Substitutions and other changes are possible.

For example, in the above-described embodiment, the two anisotropic magnets 20a and 20b are arranged so as to be adjacent to each other so that the same magnetic pole faces the same side, and the two anisotropic magnets 20a and 20b share the same. Although the two strong magnetic force generators 21 are configured, the present invention is not limited to this case. Specifically, a plurality of anisotropic magnets may be arranged at positions separated from each other so that the magnetism generated by each anisotropic magnet acts on the human body.
In the present embodiment, rectangular anisotropic magnets 20a and 20b are used as magnets, but the present invention is not limited to this. Specifically, an isotropic magnet may be used as the magnet. The shape of the magnet may be a columnar shape such as an elliptical columnar shape or a polygonal columnar shape.

[Example 1]
As the first string-like member, a trapezoidal groove having a diameter φ of 3.4 mm, a length A of 1.6 mm, a length B of 1.9 mm, an angle θa of 100 degrees, and an angle θb of 120 degrees shown in FIG. And a silicone rubber first string member having a concave magnet support at the bottom of the trapezoidal groove was produced by molding. The length of the first string-like member made of silicone rubber was 40 cm, and the concave magnet support portions were formed at intervals of 5 cm.
Further, the rare earth magnet material powder was solidified into a rectangular shape while applying a magnetic field to produce an anisotropic rare earth magnet material (L: 4 mm, H: 2 mm, W: 1 mm).

The anisotropic rare earth magnet material was inserted into the concave magnet support portion of the silicone rubber first string member. The silicone rubber first string member inserted with the anisotropic rare earth magnet material is placed in a cylindrical mold, and the space between the first string member and the mold is filled with uncured silicone rubber. Then, by heating and curing the uncured silicone rubber, a second string member was generated and the first string member and the second string member were joined.
An anisotropic rare earth magnet material of the obtained molded body was magnetized to obtain a magnetic therapy device.

[Examples 2 to 9]
A magnetic therapy device is manufactured in the same manner as in Example 1 except that the diameter φ, the length A, the length B, the angle θa, and the angle θb of the first string-like member are the values described in Table 1 below. did.

[Evaluation]
The adhesion between the first string-like member and the second string-like member of the magnetic therapy device manufactured in Examples 1 to 9 was evaluated. And the case where adhesiveness was favorable was determined as "(circle)". The results are shown in Table 1.

  From Table 1, it was confirmed that the magnetic therapy device obtained in any of Examples 1 to 9 had good adhesion between the first string-like member and the second string-like member.

DESCRIPTION OF SYMBOLS 1 ... Magnetic therapy tool, 10 ... Soft string-like body, 11 ... 1st string-like member, 12 ... Trapezoid groove, 13 ... Concave magnet support part, 15 ... 2nd string-like member, 16 ... Concave magnet accommodating part, 20 , 20a, 20b ... anisotropic magnet, 21 ... strong magnetic force generator, 22a, 22b ... anisotropic magnet material, 30a ... first clasp part, 30b ... second clasp part, 40 ... mold, 41 ... first Mold, 42 ... 2nd mold

Claims (3)

A magnetic therapy device having a soft string-like body extending in the longitudinal direction and a magnet accommodated in the soft string-like body,
The flexible string-like body includes a first string-like member extending in the longitudinal direction having a trapezoidal groove on an outer peripheral surface, and a second string-like member having a trapezoidal protrusion corresponding to the trapezoid groove of the first string-like member; Is a joined body,
The first string-like member has a concave magnet support portion formed in a concave shape at the bottom of the trapezoidal groove, and at least a part of the magnet is inserted into the concave magnet support portion,
Magnetic treatment characterized in that an angle θa formed by an imaginary line connecting the center point of the flexible string-like body and the upper ends on both sides of the trapezoidal groove of the first string-like member is in the range of 40 degrees to 150 degrees. Ingredients.   The magnetic therapy device according to claim 1, wherein the magnet is an anisotropic magnet.   Furthermore, it has the 1st clasp part formed in the one end side of the said flexible string-like body, and the 2nd clasp part formed in the other end side, Of the said 1st clasp part and the said 2nd clasp part, The magnetic therapy device according to claim 1 or 2, wherein an engagement means for detachably engaging the first clasp portion and the second clasp portion is formed on either one of them.

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