JPS6139232B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a means for temporarily fixing the lid of various containers, especially containers whose lids are pivotally mounted to open and close freely, and which is robust, has a good appearance, and is reliable and free from lateral displacement. The present invention relates to the provision of a locking device that provides a secure engagement and is easy to install.

Therefore, in conventional permanent magnets commonly used as this type of temporary fixing means, a magnet body is usually buried in the open end of a container, and a yoke is attached to this buried magnet.
The structure is such that the ferromagnetic plate of the lid is attracted to the protruding yoke end.

However, in such a method, it is necessary to prepare a gap for the magnet to fit in advance, and since the suction ends are two parallel yoke ends, it is difficult to precisely create a uniform suction level. In addition to this request, it was also necessary to prepare a separate engagement structure to prevent horizontal displacement of the suction surface.

Furthermore, the suction by the end of the yoke is subject to restrictions on appearance, making it difficult to devise a satisfactory design.

The temporary fixing structure according to the present invention was specially devised in view of the inconveniences in the prior art. As it is simply assembled and installed, the assembly cost and container molding cost are reduced, and the magnet body is covered with a casing material to improve the exterior, and the lock is mainly engaged with the hole of the female stopper. It reliably prevents horizontal displacement of the tool itself,
The gist of the structure is that a ferromagnetic plate 2 is placed on one pole surface of a permanent magnet 1 with a hole 1a opened toward the magnetic pole surface.
A female stopper a is provided, in which the plate 2 and the magnet 1 are held together by a non-magnetic case 4, and a mounting member is provided on the non-attractive surface of the magnet 1 on the plate 2. and a male stopper b having a mounting member provided on the non-adhering surface of the ferromagnetic plate 3 which is magnetically and removably attracted to the magnetic pole surface of the female stopper a.
The container lid and the container opening are configured such that the ferromagnetic members 2a, 3a protruding from either or both of the magnets 1 and 3 are removably attracted to the magnet 1 through the hole 1a of the magnet 1, and are pivotally connected to be able to be opened and closed. Based on the point that the male and female fasteners a and b are fixed facing each other, the following specific embodiments and considerable design changes accompanying these embodiments are planned.

Hereinafter, a typical embodiment of the container lid temporary fixing structure according to the present invention will be described with reference to the attached drawings.
is a permanent magnet with a hole 1a extending in the direction of the magnetic pole surface, a ferromagnetic plate 2 on one side of the magnetic pole surface, and an inverted dish-shaped magnet made of a non-magnetic material having a hole communicating with the hole 1a. The magnet 1 and the plate 2 are fitted into the case 4 with a case 4 having a shape of , is an integral part.

The ferromagnetic member 2a is erected on the plate 2 surface of the female stopper a constructed in this manner, and the small diameter rod portion 2a' of this member 2a is inserted into the plate 2 and the mounting washer 5, and its protrusion is The insertion end portion is caulked onto the washer 5 surface and fixed integrally.

The edge of the hole communicating with the hole 1a in the case 4 is bent inward to form a locking flange 4b to facilitate the positioning of the magnet 1 in the center hole and the decorative function of the edge of the opening. This has been taken into consideration.

Next, the male stopper consists of a ferromagnetic plate 3 that is magnetically and removably attracted to the magnetic pole surface of the female stopper a, and a ferromagnetic member 3a that protrudes from the surface of this plate 3. Similarly, the washer 5 is integrally caulked.

Note that the washer 5 has a pair of bent legs 5a, 5a, and the legs 5a are connected to the container body c and the lid d.
The mounting slits 6, 6 are folded and fixed at the inner depths of the openings.

Thus, the shape of the container body c and the lid d to which the male and female stops are to be attached are subject to various changes depending on the type of container intended for use, and in particular, the design of the end face for attachment is planned to be changed. is the second
As shown in the figure, the mounting end surfaces of the male and female fasteners are slightly concave, giving the mounting surface a smooth appearance and preventing the mounting fasteners from slipping.
Also, the mounting strength is particularly good.

Next, we will explain an example of a design change of a male and female stopper that is planned to be installed. In the example shown in FIG. The ferromagnetic member 2a in the plate 2 is omitted, and the example shown in FIG. The member 3a in 3 is omitted, and the edge flange 3b is made to stand up so that it engages with the periphery of the female stopper a.

Next, in the case shown in Fig. 6, a magnetic shield plate 7 is attached to prevent the radiation of magnetic lines of force from the magnet 1 used, and when a magnetic tape, magnetic chip, card, etc. comes into contact with the stop surface. This was taken into consideration so that the recorded contents would not be destroyed even in case 4, and in the example shown in Fig. This method further ensures that the magnetic recording portion is not destroyed by direct contact with the magnetic pole surface. Incidentally, the example shown in FIG. 7 is intended to reduce the manufacturing cost and assembly cost of the case 4 by utilizing such a seed plate 7.

Furthermore, the embodiments shown in FIG. 9 and subsequent figures are examples of changes in the design of the attachment members of male and female fasteners, and the narrow diameter rod portions 2a' and 3a' are modified to have wooden screws (as shown in FIG. 9), It has a bolt-rod shape (illustrated in Figure 10), a tapping screw-type (illustrated in Figure 11), and a push-in wedge shape (illustrated in Figure 12), and other considerable design changes are planned. It is what was done.

The temporary fixing structure according to the present invention has the above-mentioned features, in particular, the male and female fixings are constructed separately, and these fasteners themselves have sufficient aesthetic appearance. The specific effects of the above-mentioned characteristics can be expected by virtue of the fact that the ferromagnetic members 2a and 3a form a magnetic closed circuit approximately in the central hole.

In other words, the separate structure aims to reduce the manufacturing cost of the container body and lid as well as the assembly cost of the stopper, and at the same time, ensure secure attachment and improve appearance characteristics. . In addition, the attachment member can be easily leveled, and a good suction function and prevention of horizontal displacement of the suction surface are ensured at the same time. In particular, most of the magnetic flux unique to the magnets used is concentrated in the ferromagnetic members 2a and 3a, and it is certain that the attraction force will be worn out due to the displacement of the attraction surface in the conventional yoke and the inevitable expansion of the attraction end surface. This was prevented.

In addition, in the method described above, the shape, shape, etc. that immediately corresponds to the purpose of use and shape of the various cases in which it is planned to be installed,
A male and female stop having different appearance characteristics, color tone, etc. can be provided particularly easily.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a container body having a temporary fixing structure according to the present invention, FIG. 2 is an enlarged perspective view of the same essential parts, and FIGS.
FIG. 12 is a sectional view showing each embodiment of a male and female stop. In the figure, 1... permanent magnet, 2, 3... ferromagnetic plate, 4... case, 5... washer, 6... slit, 7... shield plate are shown.

Claims (1)

[Claims] 1. A ferromagnetic plate 2 is attached to one magnetic pole surface of a permanent magnet 1 with a hole 1a opened toward the magnetic pole surface, and the plate 2 and the magnet 1 are enclosed in a non-magnetic case 4. A female stopper a, which is integrally held and has an attachment member provided on the non-adhering surface of the magnet 1 of the plate 2, and a female stopper a that is removably magnetically attracted to the magnetic pole surface of the female stopper a. ferromagnetic members 2a, 3a protruding from either or both of the plates 2, 3;
The male and female stoppers a and b are respectively fixed to the container lid and the container opening, which are pivotally attached to the container lid and the container opening, so as to face each other. A temporary fixing structure for container lids featuring: 2. Claim 1, characterized in that the ferromagnetic protrusion 3a has a length that reaches the plate 2 through the hole 1a of the magnet 1, and has a length such that it comes into contact with and attracts the plate 2. Temporary fixing structure for container lids as described in Section 1. 3. According to claim 1, the ferromagnetic protrusion 2a has a length that reaches the upper edge of the opening of the hole 1a of the magnet 1, so that it comes into contact with and attracts the surface of the plate 3. A temporary fixing structure for such a container lid.