JPH0520548Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] This invention relates to a holding tool for holding documents, etc., which is frequently used in daily life.

[Prior art] Conventional gripping devices for documents, etc. are made of metal fittings, springs, etc.
For example, a binder is used to hold the document against a board such as cardboard, or a binder is used to punch two holes on one side of the document to be held, and pass an insertion string through the hole and fasten it with a metal fitting. There is a format.

[Problems to be solved by the invention] The above-mentioned conventional document holding device often requires a lot of effort to operate, and the product itself is bulky due to the use of metal fittings, etc., and a plate on which a part of the metal fittings is fixed is required. The body required a certain amount of strength, and the holding mechanism tended to be easily damaged.

The object of the present invention is to obtain a clamping tool that uses magnetic plates to easily clamp documents and the like using magnetic force and has a strong holding force.

[Means for Solving the Problems] The disadvantage of the conventional document holding device described above is that an inward folded portion is provided at approximately the center of the plate body, and the plate body can be freely opened and closed around the inward folded portion. , bag portions are arranged in parallel symmetrically near the inward folds of the plate body, N poles and S poles are alternately arranged on one side within the bag portion, and a magnetic plate is attached on one side. This problem is solved by a document holding device using magnetic force, which is characterized in that magnetic plates are arranged so as to face each other when the plates are closed, and the magnetic plates attract each other with magnetic force.

[Example] Hereinafter, an example of the present invention will be described based on the drawings.

FIG. 1 is a perspective view showing a document holder according to an embodiment of the present invention, and FIG. 2 is a sectional view of a main part of the document holder in a closed state. In the figure, 1 is a plate made of a synthetic resin sheet, paper, woven fabric, etc., and 2 and 2' are adjacent to an inward fold 3 formed approximately in the center of the plate 1, and The bag portion is formed by thermal welding, pasting, etc. using the synthetic resin sheets and the like arranged symmetrically with respect to the folding portion 3.

4, 4' are magnetic materials such as ferrite, rubber,
It is a flexible plate-shaped magnet plate formed by kneading synthetic resin or the like, and on one side of the magnet plate 4, 4' there is a thin magnetic plate 5, 5' made of iron, magnetic stainless steel, etc. is being installed.

Then, a pair of magnet plates 4, 4' having the magnetic plates 5, 5' attached thereto is arranged inside the bag parts 2, 2',
The magnetic plates 4 and 4' attract each other through the document 6 by magnetic force.

As shown in FIG. 2, these magnet plates 4 and 4' are magnetized on one side in parallel to the infolded portion 3 in the order of S pole, N pole, and S pole at regular intervals. , on one side of the other magnet plate 4', an N pole, an S pole,
Magnet plates 4, which have so-called anisotropy and are magnetized at regular intervals in the order of north pole, are opposed to each other.
The magnetic poles 4' are in a positional relationship such that opposite poles face each other. As a result, the magnetic plates 4 and 4' always face each other at a constant position without shifting in the left-right direction, so there is no need to perform positioning when holding documents or the like.

Furthermore, due to the yoke effect of the magnetic plates 5, 5', the magnetic field leaking from the surfaces on which the magnetic plates 5, 5' are attached becomes approximately zero, and the magnetic force is concentrated on the surfaces facing the magnetic plates 4, 4' when closed. The mutual magnetic attraction between the magnetic plates 4 and 4' increases, and the number of documents 6 that can be held increases.

FIG. 3 shows a present invention in which, in addition to the structure of the embodiment described above, a magnet plate 4 is loosely fitted in one bag part 2 and a magnet plate 4' is fixedly contained in the other bag part 2'. This is another embodiment of the clamping tool. In this embodiment, the other magnetic plate 4' is fixedly installed inside the bag part 2', but one magnetic plate 4 can be moved slightly because there is play inside the bag part 2. Magnet plate 4 in a pinched state,
Even if a positional shift occurs between opposing magnetic poles 4', the loosely fitted magnet plate 4 moves slightly to correct the positional shift of the magnetic poles, and as a result, the magnetic attraction force is always maximized. That will happen. The magnet plate 4' to which the magnetic plate 5' is attached is fixed to the bag portion 2' with an adhesive 8 such as double-sided adhesive tape.

For ease of use, a mount such as cardboard may be attached to one side of the plate 1 (for example, the right plate in FIG. 1).

In addition, both the magnet plates 4, 4' and the magnetic plates 5, 5' are formed into thin plates so as to have flexibility, and the plate body 1 and the bag parts 2, 2' are also made of flexible materials such as soft vinyl chloride sheets. Therefore, even if the surface of the document 6 to be held is uneven, the entire bag portions 2 and 2' deform along the unevenness of the document surface, and there is no loss in the holding force of the document 6, and the holding tool 1 The entire product is thin and has a soft feel.

[Effects of the invention] As detailed above, according to the document holding tool of the present invention, the bag portions are arranged symmetrically in the vicinity of the folded portion of the plate, and the bag portion has an N pole and an N pole on one side. By arranging the S poles alternately and incorporating a magnetic plate with a magnetic plate attached to one side, the structure is simple, there are no protruding parts such as metal fittings, and it is safe to handle, and the overall shape is It is formed flat so that it does not become bulky, and the yoke effect of the magnetic plate makes it possible to use the magnetic force to the maximum extent to hold documents.Furthermore, the magnetic plates always face each other at a fixed position for positioning. This means that the gripping operation is extremely excellent.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a document holder according to an embodiment of the present invention, Fig. 2 is a sectional view of essential parts of the document holder of the present invention in a closed state, and Fig. 3 is another embodiment of the present invention. FIG. 2 is a sectional view of a main part of a document holding tool according to an example. 1... Plate body, 2, 2'... Bag part, 3... Inward folded part,
4, 4'... Magnetic plate, 5, 5'... Magnetic plate, 6...
Documents, 7...adhesive.

Claims (1)

[Claims for Utility Model Registration] (1) An in-folded portion is provided at approximately the center of the plate, and the plate can be freely opened and closed around the in-folded portion, and a portion of the plate near the in-folded portion The bag parts are arranged side by side almost symmetrically, and inside the bag part, N poles and S poles are arranged alternately on one side, and a magnetic plate is attached on one side. A document holding tool utilizing magnetic force, characterized in that the magnetic plates are arranged so as to attract each other with magnetic force. (2) Utilization of magnetic force according to claim 1 of the utility model registration claim, characterized in that one bag part has a loosely fitted magnetic plate, and the other bag part has a fixed magnetic plate. document holder.