JPS5984403A - Engagement device - Google Patents

Abstract

PURPOSE:To obtain a small engagement device with a large attraction force economically by a method wherein a permanent magnet to the surface of which a ferromagnetic plate is fixed is surrounded by a case to which a engagement hole is provided at the position apart from the end of the ferromagnetic plate and a ferromagnetic member projected downward is provided to a ferromagnetic plate coupled with the composition described above and the member is set into the engagement hole. CONSTITUTION:A ferromagnetic plate 2 is fixed to the surface of a permanent magnet 1 and another larger ferromagnetic plate 3 is fixed to the back of the magnet 1 and one end of the plate 3 is extended out of the magnet 1. Above composition is surrounded by a cylindrical nonmagnetic case 4 to which an engagement hole 4b is provided at the position corresponding to the end of the ferromagnetic plate 2 and a bent nail 4a is also provided to the end of the case 4 so that the ferromagnetic plate 3 is fixed. Thus a space 6 is provided in the case 4 below the hole 4b. On the other hand, a ferromagnetic plate 5 is provided corresponding to the ferromagnetic plate 3 and a ferromagnetic member 5a is provided to one end of the plate 5 downward. Thus, when they are coupled, the member 5a is immersed into the space 6 through the hole 4b so that a strong attraction force can be obtained.

Description

[Detailed Description of the Invention] This invention is a method for attaching a retaining protrusion to an opening of a bag, handbag, clothing, etc., which is used for a long time, especially when using a permanent magnet. −1 hour on the sides and sides of the 4th surface, at least to make the engagement and disengagement operations reliable and easy, and to arrange a ferromagnetic plate on each magnetic pole surface to suppress the success or failure of the magnetic force H as much as possible and to form an effective magnetic field, This magnetic field is communicated with each other only through the interlocking protrusions to create an effective adhesion state and to produce a magnetic shielding effect.

Therefore, the conventional engagement device of this type does not have a structure or body that can completely focus the lines of magnetic force on both magnetic pole faces of the magnet, and it has been recognized that there is usually a considerable amount of leakage magnetic flux. It is something.

The engaging tool according to the present invention has the same effect as the locking feature of the forest-shaped retaining tool by eliminating any leakage magnetic flux in the conical retaining tool. The gist of its composition is that it is a permanent magnet.
A magnetic plate (2) is attached to one magnetic pole surface in the
v) At the same time, attach a ferromagnetic magnet (3) to the other magnetic pole surface so as to protrude in the ft1ll direction from the magnetic pole face, and attach the non-magnetic case (4) to the N carrier. and E
For the tool, a permanent magnet (a ferromagnetic part (2) in theヰfil eyes Ji
5) a-5-The magnet t1. l side wall and case (4)
A strong (magnetic member (3)
Based on the point that the magnet can be removably adsorbed on the 8th surface, the following specific examples and a corresponding 7'' plan accompanying these examples are planned.

Embodiment 5 of a typical retainer according to the present invention - To explain with reference to the attached drawings, (1) is a permanent retainer provided with any shape such as a circular shape or a partially broken circular shape. Ferrite magnets, etc., which are usually inexpensive to mold, are used as magnets, but rare earth magnets and other magnets for one length are also planned separately. A ferromagnetic part (2) is mounted on the other surface of one of the magnetic poles W1, and a ferromagnetic part (3) whose width is wider than that of the magnetic pole W1 is mounted on the other magnetic Tf! surface. ,
One end of this plate (3) (31a f magnet (1)
It is made to protrude in the 11j direction from the magnetic pole surface of.

Next, a generally cylindrical case (4) made of a non-magnetic material having an inverted dish shape is mounted with the magnet (1) and plate (3) in a low position so that the inner pressure plate (2) is located inside. ) is bent and crimped on the surface of the magnetic plate (3) so that these parts are integrally held together.

Incidentally, an engagement hole +47b is opened by tilting the case (4) on the bright side where the plate (2) comes into contact, and the end of the plate (3) is opened at a position opposite to this hole (4)b. The part (3)a is arranged to form a gap (61) between the magnet ill and the battlement wall of the case (4).

In contrast to the female stopper A constructed in this way, the male stopper consists of a ferromagnetic part (5) and a ferromagnetic part U or plate etc. which is integrally protruded from this ferromagnetic I raw plate (5). This ferromagnetic member (5) a is made of a plate part tJ+ a in a female in A a, or a rod or plate that is integrally erected on this plate @ta+a. It abuts on the ferromagnetic member Gl bn, engages with the hole (4)b, and detachably attracts magnetically.

In addition, the protrusion of ferromagnetic member +31 b, (5) a is
3) Squeezing of (5) or spot welding to the plate +31 f5), welding with a wax, etc., caulking as shown in Figures 2 and 3, and screw attachment as shown in Figure 4; Figure A45 This book is designed to be installed using various methods such as tightening nuts as shown in the book.

Also, member (31b, 1i5) a 4H in Ic
The edge 'h is usually rounded around the edge to improve the fitability of the member (5)a and at the same time to suppress the contact edge area and improve the suction effect.

In addition, in each method of mounting the case (4) in the above, the case (4) is made into a simple cylindrical shape, and the ends of the cylinder are folded onto the planes of the plates (2) and (3), respectively. The structure is bent and alternately layered, as in the embodiment shown in FIG. 4, and the female stopper a is assembled in order to reduce the cost and reduce the case manufacturing cost. In addition, for the purpose of increasing the shielding effect of the plate (2), the circumference of the end face of the C case (4) that comes into contact with the plate (5) is set as a rising ridge (4) c, and the magnetic pole face 1. Prevents direct contact with magnetic tape, magnetic clips, etc.
(2) As an example, FIG. 5 is particularly illustrated.

Regardless of whether the male or female fasteners are constructed by hooking, attaching a stopper such as a coil to a handbag, band, shirt piece, etc. is a method that does not require the use of my own methods. Yes, usually LI-shaped bent legs (ka, f
/) Attach to the washer (7) 8 plate i3J, t5) with a by means of welding, threading, caulking, etc., or attach the collar (7) b of the washer (7) to the case (4) together with the plate (3). It was planned that the claws 141a and 84 would be attached, or that the plate (υ) would be slightly crimped with the collar (7)b.

Next, the embodiment shown in FIG.
), prepare a washer (a recess corresponding to the thickness and width of the force and a hole through which the leg piece (7) a is inserted), and insert the leg piece (7) a in the washer (7) to the magnetic ratio. Boards (3), (5) so that they communicate
The actual flight example in Figure i!lr!8 uses a funnel-shaped caulked tube (8) as a replacement for the force. Prepare this and fasten it to plates (3) and (5).To attach a handbag, etc., crush the end of the cough crimping tube (8) that protrudes from the surface, or insert an appropriate crimping object into this crimping tube (8). is press-fitted, stop layered, and installed as appropriate.Also, the embodiment shown in Fig. m9 has a funnel-shaped caulking Ijlt (
Instead of 8), a crimped tube (9) in the shape of a bottomed funnel was prepared and a similar attachment was used.
WI If (in this example, such installation is a further modification of the example, the caulking tube utm is
Prepare a washer IIIJla and a funnel-shaped tube + 1tll b, and attach the end of the tube that is to be expanded to the washer (107a, and fix it together at the periphery of the washer 107a, and the washer jib) on the a side. ; 31, (5) uses spot, rozuga and other methods to attach to 6 [again.

Next, each embodiment shown in FIG. 11 to FIG.

Nutto 0311 piercing bottle (I-superior, pin receiving plate 9 pieces (+51
゜゜In case of individual installation of bolts, tapping screws, etc. for rods and other stepped fittings, examples are planned.

The engaging tool using a permanent magnet according to the present invention has a unique structure of the clay retainer W, and includes the use of a permanent magnet (1) that does not have a hole for inserting the protrusion frame, and a ferromagnetic member (! ,il a
In general, [, the fixation at the side edge by the male stopper used as a mold, and the permanent magnet made by the ferromagnetic part +21. It was something that could be used as a wife.

That is, the permanent magnet (1) itself is not provided with locking protrusions or locking holes 8 in the male stopper, and the magnet ( 1) means that the manufacturing cost is double because the 1111 gap (6) is prepared with a divided shaft, that is, the manufacturing cost of the magnet (1) itself and the cost of molding the case and the case. Parts for assembly $1! It was considered to be particularly cheap in terms of its screen size.

In addition, such rough dimensional accuracy is due to the use of cheap magnets with relatively large dimensional irregularities - Fe engineering skills.

Next, almost all of the three individual bundles of the magnet +11 used in the f-traverse are captured by the plate +21.131, forming a magnetic field, and almost all of the magnetic flux is visible. Look,
The use of a relatively small magnet or a magnet with low magnetic capacity (11 is assumed to be f uI#I8, which reduces the molding cost of the stopper by ¥!1, has reliable adsorption ability, and has a special small size) This is a version of J-noh which is the work of the stop and the pin.0 Also, with the help of the plate (2), the male stop with E can be used with the go without any leakage of the magnetic force from the male stop a. b)+z for engagement
N'r, by installing the ferromagnetic opening member (5)a so as to be located in front of the engaging part, that is, on the front side of the opening/closing operation, the shoe will not be affected by leakage magnetism during the opening/closing operation. Furthermore, it is reliably rc-proof.

Next, the ferromagnetic member 15) a in the male stopper is turned sideways,
In particular, by positioning the member (5) towards the open end (2), the member (5) a end can be fixed to the magnet (circumference of This is because it acts to strengthen the hair on the sides and ensures that the adsorption state is maintained.

According to the present invention, the non-engaging tool has the effect of providing a small-sized engaging tool with a good suction force compared to the above characteristics at a low cost.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of the lever F of the engaging tool according to the present invention, and FIG.
FIG. 4 is a sectional view of each embodiment. In addition, in the figure (])...Permanent magnet, f2J! 31...
Ferromagnetic part, (4)... Case, (5)... Ferromagnetic part, (6)... Gap s +'/1... Staff, (8) ~
Scream...Clinching 1a10υ...Wood screw, (13...
Bolt, Oj...Swant, 01)...Practical pin,
(15)...Pin receiving plate consideration sIIfiJ...The wedge rod is also θ]. Minoru Yuki Hara, Patent Attorney Tamo Patent Attorney Co., Ltd. Figure 8 Figure 9 Figure 10 Figure 11 Figure 12

Claims (1)

[Claims] A ferromagnetic plate (2
), and at the same time, a ferromagnetic plate (3
) and hold it together with the non-magnetic case (4) [Also 1,! 81. 't: A permanent magnet (
In 1), the sound is absorbed by the magnetized and removed marks on the attached end face of the magnetic plate (2).
4:1 Member f51 a □2 Stands on 111-4k (3) or the plate (3) through the gap formed between the side wall of the magnet (1) and the peripheral wall of the case (4). The connecting member 4e is similar to '4 in that the magnetic blue is releasably absorbed υ onto the magnetic member +31 a jMI installed.