JPS6129124B2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) This invention provides a locking structure of the stopper itself using a permanent magnet, which can be attached closely to fabrics such as bags, etc., and is easy to install and easy to install. The present invention relates to the provision of an engagement tool that requires less effort and has sufficient mounting strength for the engagement tool.

(Prior art) As shown in Fig. 14 disclosed in Utility Model Application No. 54-77800, the conventional engaging tool has a through hole o formed in the center of a ferromagnetic plate n that attracts a permanent magnet m. , a ferromagnetic rod l is implanted in this through hole o with its small diameter rod part, and an enlarged end of an eyelet-type stopper p is attached to the small diameter rod part protruding from the ferromagnetic plate n of this ferromagnetic rod l. The mounting plate q, whose peripheral edge p' is detoured around the circumferential side of the mounting plate q to be held there, is inserted through a hole r made in the center of the mounting plate q and caulked to form an integrated structure with the ferromagnetic plate n. There was one that was designed to be attached to fabrics such as bags due to p.

(Problem to be Solved by the Invention) However, in the above-mentioned engagement tool, the periphery of the mounting plate q is held by the expanded end periphery p' of the stopper p, so that it cannot be attached to the ferromagnetic plate n. The end periphery p' of the stop leg p is lifted significantly so that the bent peripheral end p'' of the stop leg p can enter between the periphery of the plate q.

Therefore, when attached to a fabric z such as a bag, it is difficult to adhere to the surface of the fabric z, and as the usage period progresses, the portion of the fabric z that comes into contact with the lifted end periphery p' becomes dented and loosens. There was a problem.

(Means for Solving the Problems) The present invention has been devised especially in view of the inconveniences in the prior art. A permanent magnet 1 which is designed to eliminate any bulkiness caused by the cylindrical body, and which enables caulking operation by opening the cylinder body, and has a hole 1a extending from one magnetic pole surface a to the other magnetic pole surface b. A ferromagnetic rod 2 that protrudes from either or both of the ferromagnetic plate 2 attached to the magnetic pole surface b and the ferromagnetic plate 3 that is brought into contact with and attracted to the magnetic pole surface a.
In the engagement tool in which the ferromagnetic rods 2a, 3a are removably attracted to each other or to the ferromagnetic plate 2 or 3 in the hole 1a, the ferromagnetic rods 2a, 3a have large diameter heads 2a',
3a' and narrow diameter mounting necks 2a'', 3a'',
The ferromagnetic plates 2, 3 are provided with insertion holes 2b, 3b of the necks 2a'', 3a'', and a cylindrical portion 4a is provided with a flange 4a' facing outward at one cylindrical end. and a mounting tool 4 consisting of a plate part 4b attached to the collar part 4a' and having a peripheral edge 4b' bypassing the peripheral side of the collar part 4a' and being crimped onto the peripheral edge of the collar part 4a'. The plate part 4b is attached to the non-adsorption side surface of the ferromagnetic plates 2 and 3, and the ferromagnetic rods 2a and 3a are
The neck portions 2a'', 3a'' of the ferromagnetic rods 2a, 3a are connected to the holes 2b, 3b of the ferromagnetic plates 2, 3 and the plate portion 4b of the fixture 4, which are provided in communication with the cylinder portion 4a. 4b'' and the hole 1 of the permanent magnet 1.
The neck portions 2a'' and 3a'' of the fixture 4 are erected within the cylindrical portion 4a and are crimped onto the plate portion 4b.

A typical embodiment of the engaging tool according to the present invention will be described below with reference to the attached drawings, in which A represents a female tool and B represents a male tool. A ferromagnetic plate 2 is disposed on the ferromagnetic plate 2, and this is integrated with a permanent magnet 1 with a case 5 made of a non-magnetic material. A permanent magnet 1 with such a case 5
The hole 1 of the permanent magnet 1 is inserted into the ferromagnetic plate 2 integrated with the ferromagnetic plate 2.
A ferromagnetic rod 2a is installed that reaches the middle of a, and the ferromagnetic rod 2a has a large diameter head 2.
a' and a small-diameter mounting neck 2a'', an insertion hole 2b for the neck 2a'' is opened in the ferromagnetic plate 2, and a flange 4a' facing outward is provided at one cylindrical end. a cylindrical part 4a which is attached to the flange 4a', and a plate part 4b which is attached to the flange 4a' and whose peripheral edge 4b' is crimped onto the periphery of the flange 4a', bypassing the peripheral side of the flange 4a'. A fixture 4 consisting of the ferromagnetic rod 2a is attached to the non-adsorption side surface of the ferromagnetic plate 2 with the plate portion 4b in close contact with the ferromagnetic rod 2a.
The neck 2a'' of the ferromagnetic rod 2a is connected to the ferromagnetic plate 2.
and the hole 4b'' provided in the plate portion 4b of the fixture 4 so as to communicate with the cylinder portion 4a, and are inserted into the hole 1a of the permanent magnet 1 without contacting the inner circumferential wall of the hole 1a. The neck portion 2a'' that protrudes into the cylindrical portion 4a of the fixture 4 is connected to the plate portion 4.
It is crimped on b.

Next, the male tool B, which is engaged with the female tool A and can be freely attached and detached by magnetization, is attached to the ferromagnetic plate 3, which can be detachably attached to the magnetic pole surface b of the permanent magnet 1, and the hole 1a of the permanent magnet 1.
The ferromagnetic rod 3a is made up of a ferromagnetic rod 3a that comes into contact with and is magnetically attached to the top end of the ferromagnetic rod 2a through the ferromagnetic rod 2a, and a mounting tool 4. The ferromagnetic rod 3a has a large diameter head 3a' and a small diameter mounting neck 3.
a'', and the neck 3 is attached to the ferromagnetic plate 3.
A cylindrical portion 4a is opened with an insertion hole 3b having a diameter of 4.a'', and a flange 4a' facing outward is provided at one cylindrical end; A mounting tool 4 is provided with a plate portion 4b which is crimped onto the peripheral edge of the ferromagnetic plate 3 by bypassing the circumferential side of the flange 4a'. The ferromagnetic rod 3a communicates the neck 3a'' of the ferromagnetic rod 3a with the hole 3b of the ferromagnetic plate 3 and the plate portion 4b of the fixture 4 with the cylinder portion 4a. The neck portion 3a'', which is inserted into a hole 4b'' provided in the holder and stands upright, and which protrudes into the cylindrical portion 4a of the fixture 4, is caulked onto the plate portion 4b. Tool A and male tool B are the ferromagnetic rod 2.
a, 3a are attracted into the hole 1a, and the ferromagnetic plate 3 is engaged with the magnetic pole face b of the permanent magnet 1 by being attracted through the case 5.

A cylindrical fitting tool 7 is separately prepared for the male and female fittings B and A, which have such characteristics, and these male and female fittings B and A are separately prepared.
A is the mounting fabric for handbags, dress shirts, etc. 8
It is designed to be fixed integrally to the

The fitting and fastening tool 7 includes a cylindrical portion 7a that is fitted onto the previous cylindrical portion 4a, and an outer side that serves as a guide surface when expanding the open end of the cylindrical portion 4a outward. The opening end of the cylindrical portion 7a is expanded along the flange 4a' of the cylindrical portion when the cylindrical portion 4a is fitted into the cylindrical portion 4a.

In addition, this fitting and fastening tool 7 has a funnel-shaped one in which the flange 7b is shortened to use the washer 10 as in the male tool B, and a washer 9 in which the flange 7b is widened.
A funnel-shaped female tool A is used, which eliminates the need for the female tool A. Figure 2 shows male tool B decorated with button 10.
It is designed to be attached by folding in the end of the flange 7b. Furthermore, in Fig. 2, the ferromagnetic rod 3a of the male tool B extends through the hole 1a to the two ferromagnetic plates of the female tool A, and the ferromagnetic rod 2a is omitted. The side of 2 is extended to be used for attaching a band or the like.

Next, the embodiment shown in FIG. 4 is a ferromagnetic rod 2a of the female tool A.
The ferromagnetic rod 3a of the male tool B is particularly omitted, and the embodiment shown in FIG. A ferromagnetic plate 6 is separately placed on the magnetically attracted surface to form a magnetic shield. In the embodiment shown in FIG. 6, the top surface of the ferromagnetic plate 6 is The periphery of the case 5 made of a non-magnetic material is made to protrude and is covered, and the embodiment shown in FIG. It is designed to prevent this.

It should be noted that these cases 5 and ferromagnetic plates 6 are used to protect the magnets, especially to improve the impact resistance of the magnets in the female tool A that uses sintered magnets such as ferrite magnets, and to protect the magnet surfaces. It is designed to enhance the decorative function of.

Next, the female tool A shown in FIGS. 9 to 11
In particular, this shows an example of a plastic magnet in which ferromagnetic plates 2, 6, etc. are embedded and molded integrally.

FIG. 12 and FIG. 13 are examples of the male tool.

The mounting structure of the fastener according to the present invention is such that the cylindrical portion 4a has a generally straight cylindrical shape as described above, and is open, so that the mounting neck portion 2a'',
3a'' can be easily and reliably caulked, and the fit of the fitting fastener 7 along the outer periphery of the cylindrical portion 4a is good.
There is no gap between the attachment and the fabric 8, allowing for close attachment.

Therefore, the conventional inconveniences in gluing, brazing, spot welding, etc. are definitely eliminated, and it is possible to quickly and easily attach a strong fastening structure for male and female fittings, and to attach these male and female fittings. This made it possible.

In addition, the plate part 4b and the cylinder part 4a in the above are connected by rolling and fixing the widening edge of the funnel-shaped cylinder part 4a by the peripheral edge 4b' of the plate part 4b, and then pressing the peripheral part. Press pressure is especially applied so that the wall thickness is equal to or less than the overlapping dimension of these plate portions 4b and collar 4a', and it adheres tightly to the 8 sides of the fabric. and can be installed.

Such a molding method particularly makes the member thinner and more robust, and also makes it possible to provide the member at a lower cost.

[Brief explanation of the drawing]

1 and 2 are cross-sectional views of male and female devices according to each embodiment of the present invention, FIGS. 3 to 11 are cross-sectional views showing respective embodiments of the female device, and FIGS. 12 and 13. 14 is a cross-sectional view showing each embodiment of the male tool, and FIG. 14 is a cross-sectional view of a conventional example. 1...Permanent magnet, 2-3...Ferromagnetic plate, 4...
Mounting tool, 4a...Cylinder part, 4b...Plate part, 5...
Case, 6...Ferromagnetic plate, 7...Fitting fastener, 8...
...Fabric, 9...Washer, 10...Decoration button.

Claims (1)

[Scope of Claims] 1. A ferromagnetic plate 2 attached to the magnetic pole surface b of a permanent magnet 1 having a hole 1a extending from one magnetic pole surface a to the other magnetic pole surface b, and a magnetic plate 2 that is brought into contact with and attracted to the magnetic pole surface a. In the engagement tool in which ferromagnetic rods 2a and 3a protruding from either or both of the magnetic plate 3 are removably attracted to each other or to the ferromagnetic plate 2 or 3 within the hole 1a, The ferromagnetic rods 2a, 3a have large diameter heads 2a', 3
a' and narrow diameter mounting necks 2a'', 3a'', and insertion holes 2b, 3b of the necks 2a'', 3a'' are opened in the ferromagnetic plates 2, 3, and one cylinder A cylindrical portion 4a is provided with a flange 4a' facing outward at the end, and a peripheral edge 4b' is attached onto the flange 4a' and bypasses the circumferential side of the flange 4a'. A fixture 4 consisting of a plate portion 4b crimped onto the periphery of the ferromagnetic rods 2a and 3 is attached to the non-adsorption side surfaces of the ferromagnetic plates 2 and 3 with the plate portion 4b in close contact with the ferromagnetic rods 2a, 3a is the ferromagnetic rod 2a,
The neck portions 2a'', 3a'' of 3a are inserted into the holes 2b, 3b of the ferromagnetic plates 2, 3 and the hole 4b'' provided in the plate portion 4b of the fixture 4 so as to communicate with the cylindrical portion 4a. erected in the hole 1a of the permanent magnet 1,
The neck portion 2 protrudes into the cylindrical portion 4a of the fixture 4.
An engagement tool characterized in that a'' and 3a'' are caulked onto the plate portion 4b.