JPS605048B2 - Engagement tool - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides an engaging device using a permanent magnet, in particular a core in which lines of magnetic force are concentrated to provide a good adhesion surface and a convex surface for mutual engagement. This relates to improvements to the gold mounting structure.

Therefore, the female engagement tool of the conventional engagement tool using this type of permanent magnet as the female engagement tool generally consists of a ferromagnetic plate that is caulked with a core metal, and then this ferromagnetic plate is It is fixed to the base plate surface of handbag fabric etc. through other attachment means, and it saves the double effort of attaching the core bar and attaching the engaging stamen itself to the base plate surface. This required additional parts to attach to the base plate.

This conventional method has been relatively expensive in terms of both manufacturing cost and installation cost, and the dimensional accuracy of the crimped product has not always been satisfactory.

The present invention has been particularly devised in view of the disadvantages of the prior art, and is capable of mounting the core metal, the ferromagnetic plate, and the integral fixing to the base plate at the same time. This is intended to simplify the installation work by omitting parts.

In addition, since the height of the core metal relative to the ferromagnetic plate can be set relatively freely when installing the core metal, errors in the joining dimensions with the engagement female can be freely corrected when installing the core metal. This is how it was done. In accordance with this purpose, the engaging tool of the present invention has its main structure on one magnetic pole surface x of a permanent magnet 4 having an engaging hole 4a directed from one magnetic pole surface x toward the other magnetic pole surface y. an engaging female odor a attached with a ferromagnetic plate 5;
It consists of an engaging male fitting b which has a U-shape and has a ferromagnetic core bar 3 protruding from the plate surface of the mounting plate 2 which is attached by sandwiching the side edges of the mounting base plate 1. The mounting plate 2 of the engaging male taint b that contacts the magnetic pole surface y of the female ferrule a is a ferromagnetic plate, and the ferromagnetic core bar 3 on the mounting plate 2 surface of the engaging male ferrule b,
In the engagement tool which is removably adsorbed on the ferromagnetic plate 5 or the ferromagnetic core bar 7 provided upright from the ferromagnetic plate 5 in the hole 4a of the female engagement tool a, The ferromagnetic core metal 3 is formed into a swollen-headed portion 3a and a pongee-shaped spiral portion 3b, and the narrow-diameter screwed portion 3b is screwed into the mounting base plate 1 from the mounting plate 2 surface to form the swollen-headed portion 3a. is an engagement tool that is erected and supported on the two surfaces of the mounting plate.

Hereinafter, details of the present invention will be described with reference to a typical embodiment shown in the drawings. 1 indicates a handbag and other bags;
This figure shows a mounting base plate for shoe bands, other bands, lid plates for general containers, etc., and a U-shaped mounting plate 2 is prepared so as to sandwich the ends of this mounting base plate 1. At the same time, a ferromagnetic core metal 3 is screwed toward the base plate 1 from the two surfaces of the mounting plate, so that the mounting plate 2 and the base plate 1 are integrally fixed.

The core metal 3 is made up of a swollen birch part 3a and a screw thread part 3b whose diameter is larger than the swollen birch part 3a. An engaging end surface is formed at the portion by the difference in the length of the flap in between.

Further, a groove 3c for engagement with a driver is provided at the top end of the expanded head part 3a of the core bar 3, as shown in FIGS. There is something like that.

Furthermore, in the embodiment shown in FIG. 8, the expansion head part 3a itself is made into a prismatic shape instead of the groove 3c, and the core bar 3 can be attached using a spanner, wrench, etc. It is.

In addition, up to the tip of the spiral part 3b in the description, the diameter of the screw part 3b is relatively widened to ensure that the core bar 3 is firmly attached to the base plate 1 without being made thinner rapidly. This is designed to clearly prevent Kin 3 from slipping out. Next, as shown in FIGS. 1 and 2, the mounting plate 2 is made of a ferromagnetic plate, and the mounting plate 2 is a non-magnetic plate and a ferromagnetic plate 2' is separately provided. It is planned that the device will be used as an intervening device as shown in FIGS. 3 and 4.

Note that the length of the core metal 3 is determined relatively in relation to the intended engagement of the iron insert of the core metal 3, but the length of the core metal 3 is determined by the amount of screwing into the base plate 1. By adjusting the length of the core metal, it is possible to adjust the length of the core metal to some extent.

For such a configuration of the male engaging member b, the female engaging member used is one of the permanent magnets 4 in which the engaging hole 4a is opened from one magnetic pole face x to the other magnetic pole face y. A ferromagnetic plate 5 is disposed on the magnetic pole face x, and a case 6 made of a non-magnetic material is ironed so as to enclose the ferromagnetic plate 6 and the permanent magnet 1, thereby integrating the two.

Of course, the case 6 has a hole that fits into the previous hole 4a, and also has a locking piece 6a bent along the lower edge of the opening. ferromagnetic material with a sufficient magnetic gap between the bottom of the hole 4a in the engaging hole a and the wall of the hole 4a of the permanent magnet 4, i.e., a gap sufficient to prevent short-circuiting of the lines of magnetic force. A core bar 7 made of a metal core 7 is erected, and the threaded part of the core bar 7 is inserted through the ferromagnetic plate 5 and the mounting washer 8 and caulked, so that the washer 8 and the core bar 7 are integrally attached to the ferromagnetic plate 5. It is designed to be fixed to the Incidentally, in the embodiment shown in FIG.
The core metal 3 here is in direct contact with the ferromagnetic plate 5, and the mounting washer 8 is integrally fixed to the ferromagnetic plate 5 with the case 6. Next, in the embodiment shown in FIGS. 11 to 13, the magnetic pole surface y opposite to the magnetic pole surface x on which the ferromagnetic plate 5 is provided, that is, the magnetic pole surface on which the male engaging member b is placed is magnetically applied. A ferromagnetic plate 9 for shielding is attached, and the first
In the example shown in FIG. 1, the case 6 completely encloses the ferromagnetic plate 9, and the case 6 has a case 6 with enough space to prevent a magnetic short circuit between the outer circumferential surface of the permanent magnet 1 and the outer circumferential surface of the case 6. A gap 10 is provided.

In addition, in the case shown in FIG. 12, the upper edge of the case 6 is largely raised above the surface of the ferromagnetic plate 9 in order to avoid direct contact with the ferromagnetic plate 9 with the rising green 6b of the case 6 as much as possible. It is. Furthermore, in the case shown in FIG. 13, the mounting end surfaces of the ferromagnetic plate 9 and the case 6 are made to be on the same level, so that the close contact of the engaged male part b with the engaged female part a is particularly good. Furthermore, the embodiments shown in FIGS. 14 to 17 are examples of mounting the female engaging member a to the mounting base plate 1, and the example in FIG. 14 is a funnel-shaped mounting. The member 11 is fixed to the permanent magnet 4 with the ferromagnetic plate 5 and the case 6, and a mounting member corresponding to the mounting member 12 shown in FIG. 15 is attached to the mounting member 11 with the base plate 1 interposed. It is designed to be press-fitted and inflated.

The embodiment shown in FIG. I5 has a completely opposite configuration to the embodiment shown in FIG. 14. or,
The embodiment shown in FIG. 16 shows a mode in which the narrow zazen part of the core bar 7 is shaped like a pin and is press-fitted into the cutout of the washer 13, and in FIG. This figure shows a structure in which the bolt-shaped bolt is attached to the base plate 1 using a washer 14 and a nut 15. In attaching the core metal 7, FIG. 14 shows a structure in which it is attached by a fly to the ferromagnetic plate 5, and FIG. 15 shows a structure in which it is press-fitted into the ferromagnetic plate 5.

Furthermore, the embodiment shown in FIG. 18 is used as a snap for a shoe band, etc., in which the ferromagnetic plate 5 is extended laterally from the case 6, and the band is attached to the surface of this extension 5a. It was designed to open a go-hole.

The present invention has a characteristic configuration as described above, in particular, the mounting plate 2 for the base plate 1 is configured in a U-shape, and the core bar 3 is directly screwed into this mounting plate 2 to attach it to the base plate 1. The mounting plate 2 may be an adsorption ferromagnetic plate that serves as a magnetic path for the permanent magnet 4, or a separate ferromagnetic plate 2' may be attached to the mounting plate 2.
Since the core bar 3 is integrated with the base plate 1 at the same time as the core bar 3 is attached, the above-mentioned characteristics can be expected to be achieved in a concrete manner.

That is, the male engaging tool b according to the present invention simply consists of the mounting plate 2 and the core bar 3, and the number of parts used is kept to a minimum, and the time and effort required to manufacture the parts is reduced, and the time and effort required for installation is reduced. It is also an extremely simple thing that ends with a process,
Both make it possible to reduce manufacturing and installation costs.

In addition, the core metal 3 has a structure that attaches to the base plate 1, and the screw portion 3b has a large diameter all the way to its tip, thereby stabilizing the core metal 3 by firmly gripping the base plate 1.
In particular, it is possible to eliminate backlash and to adjust the dimensions of the core metal 3 by adjusting the threaded dimensions.

Therefore, in a fastener using a permanent magnet of this kind, strict dimensional accuracy of the male and female mating dimensions, especially the dimensional accuracy of the core bar 3, is required. In order to reliably draw out the adsorption force of the permanent magnet, which is inversely proportionally reduced, it is necessary to ensure that the top end surface of the core bar 3 is closely attached and the mounting plate 2 is closely attached to the four surfaces of the permanent magnet at the same time. It was necessary to do so.

On the other hand, actual parts have many dimensional irregularities not only during the manufacturing process but also during the assembly process, and it is difficult to create the ideal dimensional accuracy of the engagement tool. is considered difficult in practice.

The male engaging tool according to the present invention allows the dimensional accuracy to be corrected after the fact, that is, at the time of assembly.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional view showing the mounting state of a typical male engaging tool of the present invention, FIGS. 2 to 4 are cross-sectional views showing other embodiments, and FIGS. 5 to 8 are core metal The perspective views of FIGS. 9 to 18 are cross-sectional views of the engaged female odor. In the figure, 1...Base plate, 2...Mounting plate, 3...
... Core metal, 4 ... Permanent magnet, 5 ...
Ferromagnetic plate, 6... Case, 7... Core metal, 8
... Honorable washer, 9 ... Ferromagnetic plate, 10
...Gap, 11-12...Mounting member, 13
~14...A washer, 15...A nut. Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8 Figure 9 Figure 10 Figure 11 Figure 12 Figure 13 Figure 14 Figure 15 Figure 16 Figure 17 Figure 18

Claims (1)

[Claims] 1. An engaging female fitting a in which a ferromagnetic plate 5 is attached to one magnetic pole surface x of a permanent magnet 4 having an engaging hole 4a extending from one magnetic pole surface x to the other magnetic pole surface y, and a U-shaped and a male engaging member b having a ferromagnetic core bar 3 protruding from the plate surface of the mounting plate 2 which is mounted by sandwiching the side edges of the mounting base plate 1, and at least the female engaging member b. The mounting plate 2 of the male engaging member b that contacts the magnetic pole face y of the member a is made of a ferromagnetic plate, and the ferromagnetic core bar 3 on the mounting plate 2 surface of the male engaging member b contacts the magnetic pole face y of the male engaging member b. Hole 4a of tool a
The ferromagnetic core metal 3 is expanded by an engaging tool which is attached to the ferromagnetic plate 5 or the ferromagnetic core metal 7 which is erected from the ferromagnetic plate 5 so that it can be adsorbed and removed. Rod portion 3a and small diameter screw rod portion 3
b, and the small diameter screw rod portion 3b is screwed into the mounting base plate 1 from the two surfaces of the mounting plate, so that the expanded rod portion 3a is erected and supported on the two surfaces of the mounting plate. .