CN105751731A - Magnetic attraction type loose-leaf notebook inner core and loose-leaf notebook - Google Patents
Magnetic attraction type loose-leaf notebook inner core and loose-leaf notebook Download PDFInfo
- Publication number
- CN105751731A CN105751731A CN201610237368.9A CN201610237368A CN105751731A CN 105751731 A CN105751731 A CN 105751731A CN 201610237368 A CN201610237368 A CN 201610237368A CN 105751731 A CN105751731 A CN 105751731A
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- Prior art keywords
- magnetic
- inner core
- loose
- leaf notebook
- leaf
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
- B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
- B42D3/00—Book covers
- B42D3/04—Book covers loose
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
- B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
- B42D3/00—Book covers
- B42D3/02—Book covers made of special materials
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- Soft Magnetic Materials (AREA)
Abstract
The invention discloses a magnetic attraction type loose-leaf notebook inner core and a loose-leaf notebook. The inner core is absorbed to a magnetic functional shaft (2) of a magnetic attraction type envelope (1) through magnetic force to form the loose-leaf notebook; the inner core comprises a plurality of pieces of overlapped magnetic functional paper (3); a magnetic functional strip (31) is arranged on the edge of each piece of magnetic functional paper (3); each magnetic functional strip (31) is absorbed to the magnetic functional shaft (2) of the magnetic attraction type envelope (1) through the magnetic force. The inner core can be matched with the magnetic attraction type envelope to form the loose-leaf notebook, and is magnetically absorbed to the envelope through the magnetic force, so that lossless quick disassembly and assembly of a single loose leaf of the inner core are realized; the combination is convenient; time is saved; the single loose leaf is positioned accurately and firmly without waggling, and is convenient to read and write.
Description
Technical field
This patent official-study appliances technical field, especially relates to a kind of magnetic-type loose-leaf notebook inner core and loose-leaf notebook.
Background technology
Loose-leaf notebook is again loose-leaf notebook, loose-leaf note book, and the inner core (interior page) of loose-leaf notebook can arbitrarily take out or increase.Using more flexible, inner core or its paper can arbitrarily be dismantled, change, combination in any, convenient arranges, and user can also according to the hobby of oneself, and loose-leaf notebook can be used for taking notes, account and rough draft etc..
As it is shown in figure 1, loose-leaf notebook is made up of strip of paper used for sealing, coil (or loose-leaf binder), inner core paper.It is disadvantageous in that:
1, coil type loose-leaf, loose-leaf side needs punching, and coil penetrates wherein, and after repeatedly using, loose-leaf punch position easily ftractures, and causes notebook damaged；
2, loose-leaf inconvenient operation, paper is dismantled, changes, needs to take off inner core in combination in any process, install on coil again, virtually waste a lot of time after rearranging.
3, coil diameter is less than loose leaf hole diameter, and loose-leaf easily rocks, and causes read-write inconvenience.
Summary of the invention
It is an object of the invention to provide a kind of magnetic-type loose-leaf notebook inner core and loose-leaf notebook, inner core can coordinate magnetic-type strip of paper used for sealing to use composition loose-leaf notebook, by magnetic force and strip of paper used for sealing magnetic suck, realize the lossless fast assembling-disassembling of inner core list loose-leaf, combined and instant, saves the time, and single loose-leaf accurate positioning is firm, do not rock, cause read-write convenient.
It is an object of the invention to be achieved through the following technical solutions:
A kind of magnetic-type loose-leaf notebook inner core, constitutes loose-leaf notebook by magnetic-adsorption in the magnetic functional shaft 2 of magnetic-type strip of paper used for sealing 1, and described inner core includes the magnetic functional paper 3 of multiple stackings；
The edge of described magnetic functional paper 3 is provided with magnetic function bar 31, and magnetic function bar 31 passes through magnetic-adsorption in the magnetic functional shaft 2 of magnetic-type strip of paper used for sealing 1.
The soft magnetic materials that described magnetic function bar 31 is after permanent magnet material or magnetization is made；The soft magnetic materials that described magnetic functional shaft 2 is after permanent magnet material or magnetization is made.
The soft magnetic materials that described magnetic function bar 31 is after permanent magnet material or magnetization is made；Described magnetic functional shaft 2 is made for magnetic suck material.
Described magnetic function bar 31 is made for magnetic suck material, and the soft magnetic materials that described magnetic functional shaft 2 is after permanent magnet material or magnetization is made.
The magnet of the soft magnetic materials after described permanent magnet material or magnetization is bipolar arrangement or replaces multi-polar arrangement.
Described magnetic suck material includes ferrum, cobalt, nickel or at least includes the alloy of ferrum, cobalt, nickel thrin.
Described magnetic function bar 31 is vertical bar shape.
Described magnetic function bar 31 is continuous strip or interrupted strip.
Described magnetic functional shaft 2 cross section is circular, oval, semicircle, half elliptic or rectangle；The contact surface of its magnetic functional shaft 2 and inner core is circular arc or linear.
A kind of magnetic-type loose-leaf notebook, including magnetic-type strip of paper used for sealing 1 and above-mentioned magnetic-type loose-leaf notebook inner core, described inner core is by magnetic-adsorption in the magnetic functional shaft 2 of magnetic-type strip of paper used for sealing 1, and described inner core includes the magnetic functional paper 3 of multiple stackings；The edge of described magnetic functional paper 3 is provided with magnetic function bar 31, and magnetic function bar 31 passes through magnetic-adsorption in the magnetic functional shaft 2 of magnetic-type strip of paper used for sealing 1.
As seen from the above technical solution provided by the invention, the magnetic-type loose-leaf notebook of embodiment of the present invention offer and loose-leaf notebook, inner core can coordinate magnetic-type strip of paper used for sealing to use composition loose-leaf notebook, by magnetic force and strip of paper used for sealing magnetic suck, it is achieved the lossless fast assembling-disassembling of inner core list loose-leaf, combined and instant, the saving time, single loose-leaf accurate positioning is firm, does not rock, and causes read-write convenient.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme of the embodiment of the present invention, below the accompanying drawing used required during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawings according to these accompanying drawings.
Fig. 1 is the loose-leaf notebook schematic diagram of prior art；
The structural representation of the magnetic-type loose-leaf notebook inner core that Fig. 2 provides for the embodiment of the present invention；
The structural representation one of the magnetic functional paper of the magnetic-type loose-leaf notebook inner core that Fig. 3 provides for the embodiment of the present invention；
The bipolar arrangement structural representation of the arrangement mode of the magnet of the magnetic-type loose-leaf notebook inner core that Fig. 4 provides for the embodiment of the present invention；
The alternately multi-polar arrangement structural representation of the arrangement mode of the magnet of the magnetic-type loose-leaf notebook inner core that Fig. 5 provides for the embodiment of the present invention；
The structural representation two of the magnetic functional paper of the magnetic-type loose-leaf notebook inner core that Fig. 6 provides for the embodiment of the present invention；
The structural representation three of the magnetic functional paper of the magnetic-type loose-leaf notebook inner core that Fig. 7 provides for the embodiment of the present invention；
The structural representation four of the magnetic functional paper of the magnetic-type loose-leaf notebook inner core that Fig. 8 provides for the embodiment of the present invention；
The structural representation one of the magnetic-type loose-leaf notebook that Fig. 9 provides for the embodiment of the present invention；
The structural representation two of the magnetic-type loose-leaf notebook that Figure 10 provides for the embodiment of the present invention；
The structural representation three of the magnetic-type loose-leaf notebook that Figure 11 provides for the embodiment of the present invention；
The structural representation four of the magnetic-type loose-leaf notebook that Figure 12 provides for the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.Based on embodiments of the invention, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into protection scope of the present invention.
Separately it should be noted that description orientation mentioned herein " on ", D score, "left", "right", " front, " afterwards " does not all refer in particular to this orientation except specified otherwise; be intended merely to description convenient, and its description different of the placement direction of described product is also not quite similar.Those of ordinary skill in the art are intelligible orientation under not making creative work premise, broadly falls into protection scope of the present invention.
Below in conjunction with accompanying drawing, the embodiment of the present invention is described in further detail.
Embodiment one
As shown in Figures 2 to 3, a kind of magnetic-type loose-leaf notebook inner core, in the magnetic functional shaft 2 of magnetic-type strip of paper used for sealing 1, constitute loose-leaf notebook by magnetic-adsorption, described inner core includes the magnetic functional paper 3 of multiple stackings；The edge of described magnetic functional paper 3 is provided with magnetic function bar 31, and magnetic function bar 31 in the magnetic functional shaft 2 of magnetic-type strip of paper used for sealing 1, forms loose-leaf notebook by magnetic-adsorption.
In order to realize magnetic-adsorption, magnetic functional shaft 2 and magnetic function bar 31 one of them there is magnetic, certainly, can both be magnetic also, therefore have techniques below scheme respectively:
The soft magnetic materials that scheme one, described magnetic function bar 31 are after permanent magnet material or magnetization is made；The soft magnetic materials that described magnetic functional shaft 2 is after permanent magnet material or magnetization is made, and namely both has magnetic.Needing little of magnetic suck material granulated garbage on magnetic function bar 31 with magnetic functional shaft 2 of cleaning magnetic-adsorption in use procedure sometimes, such as iron content sand grains, discarded book is ordered, and it is not firm otherwise to connect, easy to fall off, loses.
The soft magnetic materials that scheme two, described magnetic function bar 31 are after permanent magnet material or magnetization is made；Described magnetic functional shaft 2 is made for magnetic suck material, and namely magnetic function bar 31 has magnetic, and magnetic functional shaft 2 is nonmagnetic, and only meeting can by the magnetic-adsorption of magnetic magnetic function bar 31.The benefit of this scheme is, need not clear up magnetic functional shaft 2 in use procedure, only need to clear up little of magnetic suck material granulated garbage on magnetic function bar 31 of magnetic-adsorption, and magnetic functional shaft 2 infrequently moves, easy cleaning.
Scheme three, described magnetic function bar 31 are made for magnetic suck material, the soft magnetic materials that described magnetic functional shaft 2 is after permanent magnet material or magnetization is made, magnetic functional shaft 2 namely has magnetic, and magnetic function bar 31 is nonmagnetic, and only meeting can by the magnetic-adsorption of magnetic magnetic functional shaft 2.The benefit of this scheme is, need not clear up magnetic function bar 31 in use procedure, only need to clear up little of magnetic suck material granulated garbage, the more convenient cleaning in magnetic function bar 31 edge in magnetic functional shaft 2 of magnetic-adsorption.
Additionally, it should be noted that, the arrangement mode of magnet of the soft magnetic materials after described permanent magnet material or magnetization is bipolar arrangement as shown in Figure 4, or the arrangement mode of the magnet of the soft magnetic materials after described permanent magnet material or magnetization is alternately multi-polar arrangement as shown in Figure 5.
Can certainly be that multiple small magnet is stitched together.The mode preferably replaced by multipole, the shape of magnet can be cylinder, semicolumn, cuboid etc..Simply note the absorption between magnetic pole and mutex relation during arrangement.
In this example, above-mentioned magnetic suck material includes ferrum, cobalt, nickel or at least includes the alloy of ferrum, cobalt, nickel thrin.As adopted the ferrum of simple substance, cobalt or nickel, or, using ferroalloy, cobalt alloy, nickel alloy, ferrocobalt, iron-nickel alloy, cobalt-nickel alloy or ferrum cobalt close nickel alloy.
In this example, permanent magnet material adopts conventional known respective material, and e.g., permanent magnet material includes: sintering series permanent magnet material such as aluminum nickel cobalt, ferrite, neodymium iron boron, SmCo etc., and bonded ferrite, neodymium iron boron, SmCo, samarium ferrum nitrogen etc..
In this example, soft magnetic materials adopts conventional known respective material, and soft magnetic materials has the magnetic material of low-coercivity and high magnetic permeability and is prone to magnetization, is also easy to demagnetization, is widely used in electrical equipment and electronic equipment.Applying maximum soft magnetic materials is ferrum Si system alloy, it addition, ferrum aluminum series alloy, ferrum silicon aluminum series alloy and pure iron and mild steel also may be used.
In this example, the general magnetic function bar 31 described in magnetic-type loose-leaf notebook inner core is vertical bar shape, corresponding magnetic functional shaft 2 is also vertical bar shape, it is applied to the magnetic functional paper 3 of the loose-leaf notebook of rectangle, magnetic functional paper 3 in one or both sides even surrounding all can have magnetic function bar 31, side is conventional shape, and use can be write at same position by positive and negative in both sides, surrounding (with square magnetic functional paper 3), arbitrarily uses.
Meanwhile, the magnetic function bar 31 of vertical bar shape, it is also applied for the magnetic functional paper 3 of abnormity, as shown in Figure 6, magnetic functional paper 3 main body is circular, and a circular string place is straight flange, arranges magnetic function bar 31 at this straight flange, can meet use.
In this example, magnetic function bar 31 described as shown in Figure 3 is continuous strip, and corresponding magnetic functional shaft 2 is also continuous strip, it is also possible to is interrupted strip, but functionally need not.Meanwhile, described as illustrated in figs. 7 and 8 magnetic function bar 31 can be interrupted strip.Corresponding magnetic functional shaft 2 is also interrupted strip, it is also possible to be continuous strip.As it is shown in fig. 7, discontinuously strip can be symmetrical shape, corresponding magnetic functional shaft 2 is symmetrical shape, it is also possible to be continuous strip, and is all that continuous strip uses indifference.As shown in Figure 8, strip as interrupted in magnetic function bar 31 can be asymmetric form, and now coordinating corresponding magnetic functional shaft 2 is also asymmetric interrupted bar form, it is possible to prevent magnetic functional paper 3 to be inverted.
In this example, described magnetic functional shaft 2 cross section is circular, oval, semicircle, half elliptic or rectangle；The contact surface of its magnetic functional shaft 2 and inner core is circular arc or linear.As Fig. 9 to Figure 12 lists several form.
In this example, the edge of described magnetic functional paper 3 is provided with magnetic function bar 31, and magnetic function bar 31 can be coated on the edge of magnetic functional paper 3, one side and dual coating by the technique such as bonding, coating, infiltration, spraying, it is preferable that dual coating.Material used by magnetic function bar 31 such as permanent magnet material, soft magnetic materials or magnetic suck material all use dusty material.It is of course also possible to adopt the mode of crimping flaky material, such as iron plate.
Method is not the protection domain of this patent, and herein only to be applied to example, concrete method is as follows:
Magnetic-type loose-leaf notebook to prepare common A4 paper (210mm × 297mm):
Step 1, surface treatment, choosing 0.5 micron～100 flat Fe-Si-Al magnetics of micron flakes is magnetic functional powders raw material, weighs 1kg Fe-Si-Al magnetic, weighs 10g silane resin acceptor kh-550, and coupling agent uses the dilution of 100ml dehydrated alcohol；Fe-Si-Al magnetic is mixed homogeneously with the coupling agent after dilution, is placed in the vacuum drying oven of 80 DEG C～120 DEG C and dries obtains the Fe-Si-Al magnetic that surface treatment is good in 3 hours
Step 2, mixed glue, polyurethane chosen by resin, it is possible to selects adhesive for polyurethane (solid content 10wt%, i.e. polyurethane content 10%) 25g；High temperature latent curing agent 0.5g, ethyl acetate 10ml chosen by solvent；These resins are applicable to, with solvent, the Fe-Si-Al magnetic that 15g surface treatment is good；By three's Homogeneous phase mixing, specifically on high speed dispersor, thing mixed above is carried out dispersion process, make magnetic functional powders dispersed one-tenth magnetic functional powders sizing material；
Step 3, magnetic functional powders are coated with; it is the magnetic functional powders sizing material that the edge paper topcoating of single page raw material paper to A4 size covers width 5mm to be coated and thickness 0.05mm to be coated on MT-100 type casting machine, curtain coating coating procedure protects the part that paper need not be coated with；
Step 4, dry: the single page raw material paper being coated with magnetic function bar is placed in the vacuum drying oven of 80 DEG C and is dried process, gets rid of the excess of solvent of magnetic function bar.
Step 5, hot-forming, at 24T hot press--the single page raw material paper being coated with magnetic function bar after dried is carried out hot-press solidifying process, hot pressing temperature 100 DEG C, pressure 2MPa by HP-100 type heat pressing forming machines.
Above-mentioned simply a kind of painting method, the similar of other no longer describes in detail.
Use the magnetic-type loose-leaf notebook inner core composition loose-leaf notebook of this example, by magnetic force and strip of paper used for sealing magnetic suck, do not use coil, have the advantage that
1, firm firm, can repeatedly turn over conjunction；It is damaged from the paper of inner core；
2, can tear and take wherein one page, not affect the integrity of entirety；
3, use flexibly, can arbitrarily dismantle, the saving time, change, combination paper, meet the DIY hobby of user；
4, single loose-leaf accurate positioning is firm, does not rock, and causes read-write convenient.
Embodiment two
A kind of magnetic-type loose-leaf notebook, with reference to Fig. 9 to Figure 12, including magnetic-type strip of paper used for sealing 1 and the magnetic-type loose-leaf notebook inner core described in embodiment one in structure, described inner core is by magnetic-adsorption in the magnetic functional shaft 2 of magnetic-type strip of paper used for sealing 1, and described inner core includes the magnetic functional paper 3 of multiple stackings；The edge of described magnetic functional paper 3 is provided with magnetic function bar 31, and magnetic function bar 31 passes through magnetic-adsorption in the magnetic functional shaft 2 of magnetic-type strip of paper used for sealing 1.
The above; being only the present invention preferably detailed description of the invention, but protection scope of the present invention is not limited thereto, any those familiar with the art is in the technical scope that the invention discloses; the change that can readily occur in or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claims.
Claims (10)
1. a magnetic-type loose-leaf notebook inner core, constitutes loose-leaf notebook by magnetic-adsorption in the magnetic functional shaft (2) of magnetic-type strip of paper used for sealing (1), it is characterised in that: described inner core includes the magnetic functional paper (3) of multiple stackings；
The edge of described magnetic functional paper (3) is provided with magnetic function bar (31), magnetic function bar (31) by magnetic-adsorption in the magnetic functional shaft (2) of magnetic-type strip of paper used for sealing (1).
2. magnetic-type loose-leaf notebook inner core according to claim 1, it is characterised in that described magnetic function bar (31) is made for the soft magnetic materials after permanent magnet material or magnetization；Described magnetic functional shaft (2) is made for the soft magnetic materials after permanent magnet material or magnetization.
3. magnetic-type loose-leaf notebook inner core according to claim 1, it is characterised in that described magnetic function bar (31) is made for the soft magnetic materials after permanent magnet material or magnetization；Described magnetic functional shaft (2) is made for magnetic suck material.
4. magnetic-type loose-leaf notebook inner core according to claim 1, it is characterised in that described magnetic function bar (31) is made for magnetic suck material, described magnetic functional shaft (2) is made for the soft magnetic materials after permanent magnet material or magnetization.
5. the magnetic-type loose-leaf notebook inner core according to claim 2,3 or 4, it is characterised in that the magnet of described permanent magnet material or the soft magnetic materials after magnetization is bipolar arrangement or replaces multi-polar arrangement.
6. the magnetic-type loose-leaf notebook inner core according to claim 3 or 4, it is characterised in that described magnetic suck material includes ferrum, cobalt, nickel or at least includes the alloy of ferrum, cobalt, nickel thrin.
7. the magnetic-type loose-leaf notebook inner core according to claim 1,2,3 or 4, it is characterised in that described magnetic function bar (31) is vertical bar shape.
8. the magnetic-type loose-leaf notebook inner core according to claim 1,2,3 or 4, it is characterised in that described magnetic function bar (31) is continuous strip or interrupted strip.
9. the magnetic-type loose-leaf notebook inner core according to claim 1,2,3 or 4, it is characterised in that described magnetic functional shaft (2) cross section is circular, oval, semicircle, half elliptic or rectangle；The contact surface of its magnetic functional shaft (2) and inner core is circular arc or linear.
10. a magnetic-type loose-leaf notebook, it is characterized in that: include magnetic-type strip of paper used for sealing (1) and the magnetic-type loose-leaf notebook inner core described in claim 1 to 9 any one, described inner core is by magnetic-adsorption in the magnetic functional shaft (2) of magnetic-type strip of paper used for sealing (1), and described inner core includes the magnetic functional paper (3) of multiple stackings；The edge of described magnetic functional paper (3) is provided with magnetic function bar (31), magnetic function bar (31) by magnetic-adsorption in the magnetic functional shaft (2) of magnetic-type strip of paper used for sealing (1).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610237368.9A CN105751731B (en) | 2016-04-15 | 2016-04-15 | A kind of magnetic-type loose-leaf notebook inner core and loose-leaf notebook |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610237368.9A CN105751731B (en) | 2016-04-15 | 2016-04-15 | A kind of magnetic-type loose-leaf notebook inner core and loose-leaf notebook |
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| CN105751731A true CN105751731A (en) | 2016-07-13 |
| CN105751731B CN105751731B (en) | 2019-06-25 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109733087A (en) * | 2019-03-07 | 2019-05-10 | 郭伟武 | A kind of strip of paper used for sealing, loose-leaf notebook and anti-lost based reminding method |
| CN112674483A (en) * | 2020-12-24 | 2021-04-20 | 兰师伟 | Teacher gives lessons and uses lecture notes support frame |
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| GB436832A (en) * | 1934-12-21 | 1935-10-18 | Brian Ivor O Donnell | Improvements relating to loose-leaf note books, card folios and filing systems |
| GB631466A (en) * | 1946-12-02 | 1949-11-03 | Frank Cliff Page | Improvements in or relating to the binding or filing of sheets of paper and the like |
| JPS57185579U (en) * | 1981-05-20 | 1982-11-25 | ||
| JPS6432170U (en) * | 1987-08-20 | 1989-02-28 | ||
| JPH01153274U (en) * | 1988-04-13 | 1989-10-23 | ||
| JPH01306294A (en) * | 1988-06-03 | 1989-12-11 | Izumi Iwayama | Paper with magnet or magnetic material, and binder |
| JPH03153397A (en) * | 1989-11-13 | 1991-07-01 | Izumi Iwayama | Device for attachment of object to be stored such as paper using magnet or magnetic material as well as storage equipment |
| US5575503A (en) * | 1992-03-17 | 1996-11-19 | Masakatsu Takahashi | Filing tool |
| CN205674714U (en) * | 2016-04-15 | 2016-11-09 | 北矿磁材科技股份有限公司 | A kind of magnetic-type loose-leaf notebook inner core and loose-leaf notebook |
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2016
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB436832A (en) * | 1934-12-21 | 1935-10-18 | Brian Ivor O Donnell | Improvements relating to loose-leaf note books, card folios and filing systems |
| GB631466A (en) * | 1946-12-02 | 1949-11-03 | Frank Cliff Page | Improvements in or relating to the binding or filing of sheets of paper and the like |
| JPS57185579U (en) * | 1981-05-20 | 1982-11-25 | ||
| JPS6432170U (en) * | 1987-08-20 | 1989-02-28 | ||
| JPH01153274U (en) * | 1988-04-13 | 1989-10-23 | ||
| JPH01306294A (en) * | 1988-06-03 | 1989-12-11 | Izumi Iwayama | Paper with magnet or magnetic material, and binder |
| JPH03153397A (en) * | 1989-11-13 | 1991-07-01 | Izumi Iwayama | Device for attachment of object to be stored such as paper using magnet or magnetic material as well as storage equipment |
| US5575503A (en) * | 1992-03-17 | 1996-11-19 | Masakatsu Takahashi | Filing tool |
| CN205674714U (en) * | 2016-04-15 | 2016-11-09 | 北矿磁材科技股份有限公司 | A kind of magnetic-type loose-leaf notebook inner core and loose-leaf notebook |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109733087A (en) * | 2019-03-07 | 2019-05-10 | 郭伟武 | A kind of strip of paper used for sealing, loose-leaf notebook and anti-lost based reminding method |
| CN112674483A (en) * | 2020-12-24 | 2021-04-20 | 兰师伟 | Teacher gives lessons and uses lecture notes support frame |
| CN112674483B (en) * | 2020-12-24 | 2023-08-18 | 南京市淑先科技有限公司 | Lecture support frame for teacher teaching |
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| Publication number | Publication date |
|---|---|
| CN105751731B (en) | 2019-06-25 |
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