JP3593087B2 - Compact disk holder and its support - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a compact disc holder and a support base for improving the compact disc storage performance.
[0002]
[Prior art]
Conventionally, a container that accommodates a plurality of compact discs in an easy-to-see manner has been proposed. For example, in Japanese Utility Model Laid-Open No. 5-71191, storage cases that accommodate a rotatable arm on which a compact disc is placed are connected by protrusions. A structure in which a plurality of units are connected is disclosed, and Japanese Utility Model Publication No. 6-43028 discloses a structure in which a plurality of holders on which compact disks are placed are connected by a connecting piece so as to be opened and closed.
[0003]
[Problems to be solved by the invention]
However, it is difficult to find a specific one in the actual Japanese Utility Model Publication No. 5-71191 because the compact discs are aligned at short intervals, and the real fair 6-43028 needs to open the whole so that there is a disadvantage that a wasteful operation is forced. In addition, since these prior arts require a member or a storage case for each compact disk, a large storage container is required to store them. In addition, there is a disadvantage that the cost is increased.
SUMMARY OF THE INVENTION An object of the present invention is to propose a compact disc holder that has a simple structure and good usability, requires only a small installation space, and is economically superior.
[0004]
In order to solve the problem, a first compact disc holder of the present invention includes a holding portion made of a magnet member that is fitted directly into a central hole of a compact disc or via a cover member, and a side wall portion that covers a side surface of the compact disc. And the compact disc is held by magnetically adhering the front end surface of the holding portion to the ferromagnetic article.
The compact disc interposed therebetween is held by fitting the tip end surface of the holding portion to the ferromagnetic article directly into the central hole of the compact disc or via a cover member. By configuring the holding portion with a magnet member, the compact disc can be held as long as there is a ferromagnetic material, and the structure is greatly simplified.
[0005]
According to a second compact disc holder of the present invention, in the first compact disc holder, the holding portion and the side wall portion formed so as to cover one central side surface of the compact disc are integrated. It is formed, and it comprises the magnet member magnetized by the polarity from which the front end surface of this holding part and the outer surface part of this side wall part differ.
Thus, the compact disc holder can be used to support the compact disc so that it does not come off from the center of one side of the compact disc, and other ferromagnetic materials can be magnetically attracted to the outer surface of the side wall portion.
A third compact disc holder according to the present invention is the compact disc holder according to the second aspect, wherein the compact disc holder has a surface opposite to the surface covered by the side wall portion of the compact disc by being magnetically attracted to the front end surface of the holding portion. A ferromagnetic wall member covering the central side surface is provided.
As described above, holding the compact disc in a state where the side surface of the central portion is covered can be performed between the magnet member and the ferromagnetic member.
[0006]
According to a fourth compact disk holder of the present invention, in the compact disk holder of the third invention, the wall member is formed of a magnet, and the front end surface of the holding portion is on the side of the magnetic adsorption surface. It is magnetized by a magnetic pole different from the opposite side. Therefore, in order to hold the compact disc in the state of covering the central side surface, it can be performed between two magnet members. In both the third and fourth inventions, a large number of compact disc holders holding compact discs can be attached in succession by magnetic attraction. Therefore, in this state, it can be placed at an arbitrary place without a special storage container, and can be attached to a ferromagnetic article by a magnetic force, thereby minimizing the installation space.
According to a fifth aspect of the present invention, in the compact disc holder of the fourth aspect, the wall member is made of the same member as the compact disc holder of the second aspect.
In this way, if the wall member is composed of the same magnet member, one compact disk holder composed of one part for one compact disk is sufficient, so that the mounting operation is easy and economical. There are also benefits.
[0007]
According to a sixth compact disc holder of the present invention, in the compact disc holder of the second to fifth aspects of the invention, the outer surface of the side wall portion or the outer surface of the wall member is formed in a substantially curved shape, and is at least flat and strong. When magnetically attracted to a magnetic material, it can be rotated.
According to this configuration, it is possible to freely open between a plurality of compact discs connected to each other, so that it is easy to find a desired compact disc. It will be very good.
[0008]
According to a seventh aspect of the present invention, there is provided a compact disc holder according to the first aspect, wherein the compact disc holder according to the first aspect of the present invention is mounted in a housing cover capable of housing the compact disc forming the side wall portion, and substantially in the center of the housing cover. The holding part is made of a magnet member, and the compact disk is magnetically attracted to the ferromagnetic article together with the housing cover by the magnetic attraction force of the holding part.
If comprised in this way, dirt, such as dust, with respect to a compact disk can be prevented.
[0009]
An eighth compact disk holder of the present invention is composed of a housing cover that can accommodate a compact disk, and a magnet member that is connected via a connecting member, and the ferromagnetic article is connected via the housing cover and the connecting member. The compact disc is held by magnetically attracting the magnet member.
Such a configuration further increases the degree of freedom of search.
[0010]
According to a ninth compact disc holder of the present invention, in the compact disc holder of the seventh or eighth invention, the housing cover is formed of a soft transmissive member.
With this configuration, the display can be seen directly, and the degree of freedom for searching for a compact disc is further increased.
[0011]
When a plurality of compact disc holders 1 made of magnets are mounted in a connected state (see FIG. 29) and a plurality of connected compact disc holders 1 are attached to a ferromagnetic article with magnetic attraction ( (See FIG. 30) Leakage magnetic flux indicated by broken lines is generated from N to S in the figure. As described above, since the present invention uses a magnet member, when a compact disc holder is installed in a place where leakage magnetic flux is considered to be affected, for example, in the vicinity of a personal computer, the personal computer is operated to input data from the compact disc. In addition, in the work of dropping data on the floppy disk, it is also necessary to consider that the magnetic disk is not easily damaged even if the floppy disk approaches or comes into contact with a work desk or the like.
[0012]
A tenth compact disc holder of the present invention is the compact disc holder of the second to ninth inventions, wherein an attractive force auxiliary magnet is attached or interposed between a plurality of compact disc holders.
When the magnets are stacked in the magnetizing direction, there is a characteristic that the increase in the attractive force of the magnets increases up to a certain thickness. Utilizing this feature, the compact disk holder uses a magnet with relatively weak magnetic force to reduce the possibility of magnetic interference, and in particular, as shown in FIG. An attracting force auxiliary magnet 139 is interposed between the ferromagnetic part S8, which is a body, and the compact disc holder 1, and is fixed by suction.
In the case where the compact disc holder 1 is used without being attracted to the adherend, the attractive force of the compact disc holder can be increased by causing the compact disc holder 1 to attract the attracting force auxiliary magnet 139.
[0013]
An eleventh compact disk holder of the present invention is the compact disk holder of the first to tenth inventions, wherein the magnet member is a ferrite-based bonded magnet.
As described above, the magnet member of the compact disk holder is a ferrite-based bonded magnet having a relatively weak magnetic force than other types of magnets, thereby reducing the possibility of magnetic disturbance to the floppy disk and making it complicated. Even a simple shape can easily form a magnetic field.
[0014]
A twelfth compact disc holder support base according to the present invention is a ferromagnetic support base for magnetically attracting the compact disc holder according to any one of claims 1 to 11, wherein one side of the support base is provided. A compact disk holder having a magnet member magnetized with an N pole on the other side of the S pole is fixed to the inside by magnetic attraction, and a ferromagnetic material is provided between the rearmost part of the compact disk holder and the bottom of the support base. It is characterized in that a magnetic closed circuit is formed by magnetically adsorbing a manufactured joint plate to prevent external leakage magnetic flux.
As shown in FIG. 31, the support base of the present invention uses a support base 140 made of a ferromagnetic material to which the compact disc holder 1 holding the compact disc 5 is fixed with a magnetic attraction force. A compact disk holder 1 that holds a compact disk 5 and has a magnet member that is vertically magnetized (magnetized in the thickness direction so that it becomes a single-sided N pole and another single-sided S pole) on the inner surface of the support base 140 is magnetically attracted. Further, a magnetic closed plate 142 is magnetically attracted between the rearmost part of the compact disk holder 1 and the support base bottom part 141 to form a magnetic closed circuit to prevent external leakage magnetic flux. As shown in FIG. 33, the present invention can also be applied to the case where the attractive force auxiliary magnet 139 is used.
[0015]
In a thirteenth compact disk holder support base according to the present invention, the magnet member is subjected to double-sided multipolar magnetization, and the compact disk holder provided with the magnet member is fixed to the inside thereof by magnetic attraction. At the same time, a ferromagnetic joint plate was magnetically attracted to the rearmost part of the compact disk holder to form a magnetic closed circuit to prevent external leakage magnetic flux.
As shown in FIG. 36, the support base of the compact disk holder uses a ferromagnetic support base 140 that fixes the compact disk holder 1 holding the compact disk 5 by a magnetic adsorption force. A compact disk holder 1 having a magnet member having a multipole magnetized vertically (double-sided multipolar magnetization in the thickness direction) and holding a compact disk 5 is fixed by a magnetic attraction force. A magnetic joint plate 142 is magnetically attracted to the last part to form a magnetic closed circuit, thereby preventing external leakage magnetic flux.
[0016]
Magnets used in the magnet member of the present invention include ferrite magnets such as strontium ferrite, barium ferrite, rare earth magnets such as neodymium / iron / boron, samarium / cobalt, samarium / iron / nitrogen, manganese / aluminum magnets, and bonded magnets thereof ( Permanent magnets such as plastic magnets and rubber magnets can be used. Among them, bonded magnets have a relatively low magnetic force, so they are unlikely to cause magnetic interference to floppy disks, etc. The shape bonded magnet is preferable because it is an oxide, has a large coercive force, is stable and is excellent in economy.
[0017]
The magnetization pattern of the magnet member in the present invention is as shown in FIG. 39 (a). The magnet member is vertically magnetized (N-pole on one side (b) magnetized in the thickness direction and S-pole on the other side (c)). 37) and 38), as shown in FIG. 37 and FIG. 38, the magnet member shown in FIG. 37 (a) is vertically polarized (see (b) and (c) in which two or four poles are magnetized in the thickness direction). A multipolar magnet that is vertically magnetized can be used.
The upper and lower magnetized products are centripetal adsorbent that attracts them in the center when connecting the compact disc holder, rotational ability when rotating the compact disc holder, the outer surface of the side wall of the compact disc holder or the outer surface of the wall member In addition to the advantage that there is little decrease in the attractive force due to the decrease in the adhesion of the attracting surface when bending is applied, in order to form an anisotropic bonded magnet in a magnetic field, the orientation and magnetization are affected by the magnetic field that indicates the magnetic field orientation. There are advantages that can be achieved at the same time, but the attractive force is lower than that of upper and lower multipolar magnetization, and the external leakage magnetic flux extends far away.
Multipole upper and lower magnetized products have a short distance between the N and S poles, so the external leakage magnetic flux does not reach far, the adhesion force is large, and the centripetal and rotational properties are good, but the adhesion force of the curved surface is inferior. Magnetization is difficult except that it is performed after molding.
Therefore, the magnetization pattern may be determined according to the field of application in which the compact disc holder is used.
[0018]
DETAILED DESCRIPTION OF THE INVENTION
The present invention can store a plurality of compact discs by holding a compact disc with a compact disc holder using a magnet member, and further enabling the compact disc holders to be connected by the magnetic force of each magnet member. This will be described below with reference to examples.
[0019]
FIG. 1 shows a first embodiment of the present invention.
The compact disc holder 1 according to the present embodiment is composed of a single magnet member 2 as shown in a perspective view (a) and a cross-sectional view AA in FIG. A holding part 3 that fits into the central hole 6 of the compact disk 5 is formed at the central part of the magnet member 2, and a side wall part 4 that covers the central part of the compact disk 5 is formed behind the holding part 3.
In addition, although these holding | maintenance parts 3 and the side wall part 4 are illustrated in the column shape, arbitrary shapes, such as a polygon and an ellipse, may be sufficient.
The front end surface 3a of the holding portion 3 of the magnet member 2 and the outer surface 4a of the side wall portion 4 are magnetized with different polarities, and each can be magnetically attracted to a ferromagnetic material.
In addition, the curved part 4b is formed in the outer surface 4a of the said side wall part 4, and it becomes easy to carry out the rotation effect mentioned later.
FIG. 2 is an example of use of this embodiment, and the front end surface of the holding portion 3 in a state where the holding portion 3 of the magnet member 2 is fitted in the center hole 6 of the compact disk 5 as shown in the procedure diagram of FIG. When the magnetic disk 3a is magnetically attracted to the BO position in the ferromagnetic article S1 such as an iron shelf, the compact disk 5 is separated from the ferromagnetic article S1 and the side wall of the magnet member 2 as shown in the end view BB of FIG. It is held between the parts 4.
[0020]
FIG. 3 shows a second embodiment.
In this embodiment, as a ferromagnetic article to be magnetically attracted to the magnet member 2 manufactured in the same manner as the first embodiment, the distal end surface 23a of the holding portion 23 and the side wall portion 24 have substantially the same shape as the magnet member 2. On the outer surface 24a, a magnet member 22 magnetized in the opposite polarity is used to constitute a compact disc holder 21 by these two magnet members 2 and 22, and the compact disc 5 is shown in the flowchart of FIG. The compact disc 5 is held by magnetically adsorbing the holding portion 3 of the magnet member 2 and the holding portion 23 of the magnet member 22 in the center hole 6.
In addition, the length of the holding portions 3 and 23 is preferably slightly longer than the thickness of the compact disc 5 in terms of storage space, and the length is not necessarily provided equally as in the embodiment, but only on one side. It may be provided in a concentrated manner.
[0021]
In this state, the compact disk can be installed by magnetically adsorbing the side wall of one magnet to an arbitrary place in the ferromagnetic article S2 such as an iron shelf. (See CC end view (b) at adsorption position CO)
If a plurality of units holding the compact disc 5 are produced between the magnet members 2 and 22 of the compact disc holder 21 produced in the same manner as in the present embodiment, the side walls of the other magnet are sequentially magnetically attracted. It is possible to connect a plurality of compact discs as shown in FIG. In this case, the installation location is arbitrary, and a useless space can be used, which is beneficial in the storage space.
In addition, when searching for a desired product from a plurality of connected compact discs, even if the compact discs are opened as shown in FIG. 4, the magnetic attractive force acts, and if the release force is released, the original connected state is restored. It is convenient because it is restored.
In this embodiment, since the curved portion 4b is formed on the side wall portion 4 of the magnet member 2, the magnet rotates when opening the space between the compact discs, so that the operation can be performed more smoothly.
[0022]
In this embodiment, when a plurality of compact disks are connected, as shown in FIG. 5, the connected state can be maintained by itself, so that there is no need for a ferromagnetic article in the periphery, so that the mounting surface can be made compact. Can be stored.
[0023]
FIG. 6 shows a third embodiment.
In this embodiment, holding the compact disk between the magnet members is the same as in the second embodiment, but differs in that the same magnet member is used.
That is, as shown in FIG. 5A, the compact disc holder 31 is composed of a single magnet member 32, and is inserted into the center hole of the disc-shaped wall portion 37 formed at the center of the compact disc holder 31 into the center hole of the compact disc. A holding part 38 and a left holding part 39 are provided.
The allowances of the right holding part 38 and the left holding part 39 may be set to be slightly larger than the thickness of the compact disc in total, and in the present embodiment, the allowance is equal. The end surface 38a of the right holding portion 38 and the end surface 39a of the left holding portion 39 are magnetized with different polarities.
In order to hold a compact disk, as shown in (b), in the state where the central hole 6 of the compact disk 5 is fitted on the right holding portion 38 side of the compact disk holder 31, the magnetic force in another compact disk holder 31 ′ is set. What is necessary is just to magnetically attract left holding | maintenance part 39 'which is the holding | maintenance part of the adsorption | suction side.
In the same procedure, as shown in (c), a plurality of compact disks can be connected, and can be magnetically attracted and held on the ferromagnetic article S3.
[0024]
FIG. 7 shows a modification of the third embodiment.
In the third embodiment, the compact disc holder is bilaterally symmetric and looks good, but since the difference in polarity between the two end faces is difficult to understand, a structure that can easily identify the shape is disclosed in the modification.
In this embodiment, as shown in (a), the compact disc holder 41 is a single magnet member 42, and the holding portion 43 is formed to protrude slightly larger than the thickness of the compact disc at the central portion on one side of the side wall portion 44. The outer surface of the side wall portion and the front end surface of the holding portion are magnetized with different polarities. (Therefore, the configuration is basically the same as the compact disc holder 1 in the first embodiment.)
According to this configuration, since the difference in polarity can be identified by the difference in shape, the holding operation of the compact disk is simplified.
And after connecting a some compact disk, as shown in (b), it can be made to magnetically attract and hold | maintain to ferromagnetic material article | item S4.
[0025]
In addition, as shown in FIG. 8 as another easy-to-identify shape, the holding portion 53 of the compact disc holder 51 is formed to have a larger width in the above modification, and a groove portion 53a is provided on the opposite surface. As shown in FIG. 9, an appropriate structure may be employed, such as a convex portion 67 having a spherical shape on one side of the compact disc holder 61 and a concave portion 68 on the opposite surface.
[0026]
In the second embodiment, the third embodiment, and the modification of the third embodiment, the compact disk is held between the magnet members. However, as shown in FIG. You may form with a body material.
(A) is a compact disc holder 71 composed of a magnet member 72 having a shape in which the width of the magnet member holding portion 73 in the second embodiment is widened and a ferromagnetic wall member 77 processed with a steel plate or the like. FIG. 8B is a schematic view using a ferromagnetic wall member 78 formed by processing a steel plate or the like into the same shape as the compact disc holder 51 shown in FIG. Reference numeral 5 denotes a compact disc.
[0027]
In the description of each of the embodiments and the modifications so far, the compact disk has been exposed, but the same applies to the compact disk 5 accommodated in the protective cover 7 as shown in FIG. Can be implemented. This figure shows a state in which the compact disk 5 is held between the magnet members 2 and 22 in the second embodiment.
[0028]
In the present invention, in order to hold the compact disk, it is possible to implement other than the structure in which the magnet member described so far is directly used, which will be described based on the following examples.
[0029]
12 to 15 show a fourth embodiment.
The compact disc holder 101 used in this embodiment includes a storage cover 102 capable of storing the compact disc 5 and a magnet member 103 accommodated therein.
As shown in FIG. 12B and FIG. 13 which is a DD cross section of the storage cover 102, the storage cover 102 is processed into a bag shape with the back surface portion 104 and the front surface portion 105 of a transparent resin sheet and accommodates the compact disc 5. A portion 106 is formed, and a magnet member 103 magnetized on both surfaces is formed in the center portion of the inner surface of the back surface portion 104 under the condition that the center hole 6 of the compact disk 5 shown in FIG. It is covered by the member 109 and disposed by welding the periphery.
The arrangement structure may be any appropriate method other than the present embodiment.
Further, a flap portion 107 is formed on the upper portion of the back surface portion 104, and an attachment band 108 is attached on the upper portion of the front surface portion 105.
The compact disc 5 is disposed at a predetermined position of the housing portion 106, and then the housing is completed by inserting the flap portion 107 into the attachment band 108. (See FIG. 12 (c) and FIG. 14)
Since the compact disk holder 101 can be magnetically attracted to the ferromagnetic article and the other compact disk holder 101 by the magnet member 103, a plurality of compact disk holders containing the compact disk 5 as shown in FIG. 101 can be attached to the ferromagnetic article S4 in a connected state.
[0030]
16 to 18 show a fifth embodiment.
As shown in FIG. 16A, the compact disc holder 111 in this embodiment includes a storage cover 112 that can accommodate a compact disc and two magnet members 113a and 113b.
The storage cover 112 is formed in a bag shape with a back surface portion 114 and a front surface portion 115 and is provided with a collecting portion 116 for the compact disc 5. A central hole of the compact disc is fitted into the central portion of the back surface portion 114, and a magnet member 113a is inserted. A flap portion 117 is formed at the upper portion, and a magnet member 113b is disposed at the upper end portion so as to be magnetically attractable to the magnet member 113a. In addition, as shown in FIG. 17 of the EE cross section, the sheet members 119 and 119 to be attached by covering and welding the magnet members 113a and 113b are provided outside the back surface portion 114 in this embodiment. However, the attachment method is not limited to this, and an appropriate structure may be adopted.
Further, a notch 115a is provided on the upper surface 115 so that the magnet member 113a is exposed.
Then, in the state where the compact disc 5 is accommodated at a predetermined position as shown in (b), the flap portion 117 is bent downward, and the magnet member 113b provided at the same portion is provided on the magnet member 113a provided on the one wall side. By compaction, the compact disc is completely accommodated. (See FIG. 16 (c) and FIG. 18 (a))
In addition, if the recessed part is provided as shown to 114a, it will become easy to bend the said flap part 117 easily.
In this state, as in the fourth embodiment, as shown in FIG. 18B, connection and joining by magnetic attraction to another compact disk holder 111 and the ferromagnetic article S5 are possible.
In this embodiment, there is an advantage that the compact disk can be easily stored as compared with the fourth embodiment.
[0031]
19 to 22 show a sixth embodiment.
As shown in FIG. 19B and FIG. 20 which is an F-F sectional view of the compact disc holder 121 according to the present invention, the compact disc holder 121 includes a general storage cover 122 and a magnet member 123. Is different from the above-described fourth and fifth embodiments in that it is out of the compact disk storage position.
The storage cover 122 forms a compact disk storage portion 126 between the back surface portion 124 and the front surface portion 125, and a flap portion 127 is attached to the upper portion of the back surface portion 124 by welding. An attachment band 128 for inserting and locking the flap portion 127 is attached by welding or the like.
The magnet member 123 is attached to the upper portion of the back surface portion 124 by being interposed between the flap portions 127. At that time, as shown in FIGS. 19B and 19C, the central storage space may be maximized, or storage unevenness or the like (not shown) may be provided so that the magnet member 123 is positioned at the center. The thickness of the magnet member 123 is set so that the upper surface position of the flap covering the magnet member 123 does not become lower than the upper surface of the attachment band 128 when the compact disk 5 described below is stored.
In this state, the compact disc 5 shown in (a) is inserted into the compact disc storage portion 126 of the storage cover 122 shown in (b), and the flap portion 127 is further inserted into the attachment band 128 so that the compact disc holder 121 is attached. Stored. (See FIG. 19 (c) and FIG. 21)
Then, as shown in FIG. 22, the plurality of compact disc holders 121 are connected to each other by the magnetic attractive force by the respective magnet members 123 and attached to the ferromagnetic article S6 with the magnetic attractive force.
In this embodiment, since the position of the magnet member 123 is away from the compact disc storage portion 126, the compact disc holder 121 can be opened widely when searching for a desired compact disc, and there is an advantage that it is easy to see.
In addition, if the magnet member 123 is provided in the front-end | tip of the narrow extension part 129 like FIG. 23 and the modification of a present Example shown in FIG. 24 which is the GG cross section, it will become still easier to open.
Reference numeral 130 denotes a protrusion for causing the magnet member 123 to protrude, which facilitates magnetic attraction with other compact disk holders, and can be applied to each of the embodiments shown in FIGS. is there.
[0032]
25 to 28 show a seventh embodiment.
In this embodiment, the extension portion 129 (see FIG. 23) in the modification of the sixth embodiment is configured as a separate member, and the compact disc holder 131 is shown in FIG. 25 and its HH sectional view. As shown in FIG. 26, the storage cover 132, a magnet member 133, and a connecting member 134 that accommodate a general compact disc are configured.
A hole 138 is provided in the upper portion of the housing cover 132, and a string-like connecting member 134 formed of resin fiber or the like is passed therethrough. The connecting member 134 is formed in an annular shape, and an end thereof is inserted into a magnet cover 135 formed of a thin resin such as a resin in the magnet member 133, and FIG. It is hung on the protrusion 136 shown in the K cross section (b). Then, the lid plate 138 is locked by being fitted through the magnet body 137 by forcible fitting or the like.
In addition, about the attachment structure of the said connection member 134 and the magnet member 133, and the structure of magnet member 133 itself, you may implement not only the said Example but with an appropriate structure. As shown in FIG. 28, the compact disk holder 131 configured as described above can be connected to another compact disk holder 131 and attached to the ferromagnetic material S7 by the magnetic attraction force of the magnet member 133. Become. According to this embodiment, when searching for a desired compact disk, it can be opened wide and can be viewed easily, and it is easier to see because it can be twisted.
[0033]
The following examples show the manufacturing method and various performances of the compact disc holder.
[0034]
(Example 8)
In this example, the magnetic attractive force of the compact disk holder was obtained.
The compact disk holder (hereinafter referred to as sample 1) used in this measurement has the shape shown in FIG. 1, and the side wall 4 has a diameter of 25 mm, the holding part 3 has a diameter of 14.8 mm, and a thickness of 2.1 mm (1 piece). A known plastic magnet using a bond magnet (plastic magnet) molding pellet (magnetic characteristics Br: 2580G, bHc2360Oe, iHc2800Oe, BHmax1.6MGOe) made of commercially available anisotropic strontium ferrite powder and polyamide resin Molded by the injection molding method.
The attractive force auxiliary magnet is cylindrical and has a diameter of 14.8 mm and a thickness of 7.8 mm, and is formed in the same manner as the above compact disc holder.
Both magnetizations are magnetized simultaneously with orientation by a magnetic field orientation magnetic field (13000 Oe) at the time of magnetic field shaping. (The other side as a pair of compact disc holders is formed by reversing the direction of the magnetic field.)
The attractive force when the compact disc holder and the attractive force auxiliary magnet manufactured as described above are attached using a steel plate (thickness of 1.5 mm) as an adherend is 85 g in the case of the compact disc alone. 32, when the compact disc 1 is attached via the attractive force auxiliary magnet 139 as shown in FIG. 32, the weight is 170 g, and the former feels that the attractive force is insufficient, but the latter can provide a sufficient feel. If the attractive force in a pair is sufficient, there is no concern about the attractive force because the attractive force tends to increase with further coupling.
[0035]
Example 9
In this example, the external leakage magnetic flux was measured.
The sample of the compact disc holder used for this measurement is the sample 1 which is an anisotropic strontium ferrite bonded magnet similar to the eighth embodiment, and a molded bond magnet of commercially available isotropic neodymium / iron / boron / bonded magnet. A sample molded to the same size as Sample 1 by a known injection molding method using molding pellets (magnetic characteristics Br: 4600G, bHc4300Oe, iHc14000Oe, BHmax5MGOe) and subjected to vertical magnetization by applying a magnetic field of 25000 Oe from the vertical direction 2 is used.
Then, as a result of measuring the surface leakage magnetic flux density at the center of the end portion with 24 compact discs connected using a gauss meter, it was 1950 G in the case of isotropic neodymium / iron / boron / bonded magnet of sample 2. In contrast, the anisotropic strontium ferrite bonded magnet of Sample 1 was found to be as weak as 872G. Therefore, if a ferrite-based bonded magnet is used as a compact disk holder, the possibility of magnetic interference to floppy disks and the like can be reduced, and this magnet can be easily formed into a magnetic field even with a complicated shape compared to other types of magnets. It is suitable because it is cheap and inexpensive.
[0036]
(Example 10)
In this example, when a support base was used in a state where a compact disc holder that was vertically magnetized was used, the leakage magnetic flux density from the support base was measured.
The above-described sample 1 is used as a compact disc holder used for the measurement.
The measurement result shows that the surface magnetic flux density at the center of the rear end of the compact disc holding part is 920 G when it is attached to a 1.5 mm thick iron plate as an adherend in a state where 24 compact disc holders are connected. 31 is a magnetic closed circuit in which 24 compact disc holders are connected between a support base 140 (made of iron plate, thickness 1.5 mm, width 50 mm) and a joint plate (1.5 mm thickness) shown in FIG. When the magnetic flux density is measured with a gauss meter, the leakage magnetic flux density on the back of the iron plate at the center is about 2G, and it was found that there is almost no leakage.
[0037]
(Example 11)
In this example, when a support base was used in a state where a compact disc holder with upper and lower two-pole magnetization was used, the leakage magnetic flux density from the support base was measured.
The compact disc holder used for this measurement was subjected to demagnetization by applying a reverse magnetic field by a known method after molding in the same manner as in Example 8. Then, the compact disc holder shown in FIG. 34 ((a) sectional view, (b) back surface) As shown in the figure), a two-pole magnetized yoke having a central pole diameter of 10 mm is concentrically arranged in a concentric circle so that the top surface is N pole and the bottom surface is S pole. Magnetization is performed by applying a direct current pulse current 1500A from the power source. The surface magnetic flux density at the center of the rear end of the compact disc holder was 870 G when 24 compact discs were connected with this compact disc holder and attached to a 1.5 mm thick iron plate as an adherend. As shown in FIG. 36, the back of the iron plate at the center is formed by sticking to a support plate made of iron plate having a thickness of 1.5 mm and a width of 50 mm and attaching a 1.5 mm thick iron plate to the last part to form a magnetic closed circuit. When the leakage magnetic flux density is measured with a gauss meter, it is 0 G, and no leakage is recognized.
[0038]
【The invention's effect】
According to the present invention, since the compact disk can be collected in the compact disk holder using the magnet member, a plurality of compact disks can be connected by magnetic attraction, and the simple structure is easy to use and economical. In addition to being excellent, the compact disk holder can be attached to any place on a ferromagnetic article such as an iron shelf, so that useless space can be utilized and installation space can be reduced. .
Furthermore, according to the present invention, when used in a field where there is a possibility of approaching a floppy disk in the case of work of a personal computer or the like, a bond magnet having a low magnetic force can be used in combination with an attractive force auxiliary magnet, Further, leakage magnetic flux can be prevented by the support of the compact disk holder that forms a magnetic closed circuit.
[Brief description of the drawings]
FIGS. 1A and 1B are explanatory views of a first embodiment according to the present invention, wherein FIG. 1A is a perspective view, and FIG. 1B is a cross-sectional view taken along line AA in FIG.
FIGS. 2A and 2B are explanatory views of a first embodiment according to the present invention, wherein FIG. 2A is a mounting procedure diagram, and FIG. 2B is a cross-sectional view taken along line BB in FIG.
FIGS. 3A and 3B are explanatory views of a second embodiment according to the present invention, wherein FIG. 3A is a mounting procedure diagram, FIG. 3B is a cross-sectional view taken along line BB in FIG. 3A, and FIG. A schematic diagram when attached to a ferromagnetic article is shown.
FIG. 4 shows a schematic view when the connected compact disc is opened in the second embodiment of the present invention.
FIG. 5 is a schematic view when a connected compact disc is mounted in a second embodiment according to the present invention.
6A and 6B are explanatory views of a third embodiment according to the present invention, wherein FIG. 6A is a front view of a compact disc holder, FIG. 6B is an explanatory view for holding a compact disc, and FIG. 1 shows a schematic view when a compact disk is attached to a ferromagnetic article.
FIGS. 7A and 7B are explanatory views of a modification of the third embodiment according to the present invention, in which FIG. 7A is a front view of a compact disc holder, and FIG. 7B is a diagram showing a connected compact disc attached to a ferromagnetic article. Schematic representation of time is shown.
FIG. 8 is a sectional view showing another modification of the third embodiment according to the present invention.
FIG. 9 shows a sectional view of another modification of the third embodiment according to the present invention.
FIG. 10 is an explanatory view showing another embodiment of the modification of the second embodiment and the third embodiment according to the present invention, (a) is a schematic diagram applied to the second embodiment, and (b). These show the schematic applied to a modification of the third embodiment.
FIG. 11 is an explanatory view when a protective cover is used in the second embodiment of the present invention.
12A and 12B are explanatory views of a fourth embodiment according to the present invention, in which FIG. 12A is a perspective view of a compact disc, FIG. 12B is a perspective view of a compact disc holder, and FIG. 12C is a compact housing a compact disc. The perspective view of a disk holder is shown.
FIG. 13 is a sectional view taken along line DD in FIG.
FIG. 14 shows a central longitudinal sectional view in FIG.
FIG. 15 is a sectional view when a plurality of compact disc holders according to a fourth embodiment of the present invention are attached to a ferromagnetic article in a connected state.
16A and 16B are explanatory views of a fifth embodiment according to the present invention, in which FIG. 16A is a perspective view of a compact disc holder, FIG. 16B is a perspective view of a compact disc holder with a compact disc mounted thereon, and FIG. FIG. 3 shows a perspective view of a compact disc holder that accommodates a compact disc.
FIG. 17 is a cross-sectional view taken along line EE in FIG.
18A and 18B are explanatory views showing a state in which the compact disc according to the fifth embodiment of the present invention is mounted on the compact disc holder, wherein FIG. 18A is a longitudinal sectional view of FIG. 16C, and FIG. FIG. 3 shows a cross-sectional view of the connected compact disc holder attached to a ferromagnetic article.
FIG. 19 is an explanatory view of a sixth embodiment according to the present invention, where (a) is a perspective view of a compact disc, (b) is a perspective view of a compact disc holder, and (c) is a compact housing a compact disc. The perspective view of a disk holder is shown.
FIG. 20 is a cross-sectional view taken along line FF in FIG.
FIG. 21 shows a central longitudinal sectional view in FIG.
FIG. 22 is a cross-sectional view of a sixth embodiment of the present invention when a plurality of compact disc holders are connected to a ferromagnetic article in a connected state.
FIG. 23 is a perspective view of a modified example of the sixth embodiment according to the present invention.
24 is a sectional view taken along line GG in FIG.
FIG. 25 shows a perspective view of a seventh embodiment according to the present invention.
FIG. 26 is a cross-sectional view taken along the line HH in FIG.
27A and 27B are cross-sectional views of a magnet member according to a seventh embodiment of the present invention, where FIG. 27A is a cross-sectional view taken along line JJ in FIG. 26, and FIG. 27B is a cross-sectional view taken along line KK in FIG.
FIG. 28 is a sectional view when a plurality of compact disc holders according to the seventh embodiment of the present invention are attached to a ferromagnetic article in a connected state.
FIG. 29 is a conceptual schematic diagram showing external leakage magnetic flux when a connected compact disc is placed according to a second embodiment of the present invention.
FIG. 30 is a conceptual schematic diagram showing external leakage magnetic flux in a state in which a compact disk in a coupled state in a second embodiment according to the present invention is magnetically attracted to a ferromagnetic article.
FIG. 31 is a schematic diagram showing a magnetic closed circuit according to a twelfth aspect of the present invention.
FIG. 32 is a schematic diagram showing an embodiment in the tenth aspect of the present invention.
FIG. 33 is a schematic diagram showing an embodiment of the tenth and twelfth aspects of the present invention.
FIG. 34 is a schematic diagram showing an example of a magnetized pattern in which upper and lower multipolar magnetization is applied to the magnet member of the present invention, and (a) is a schematic diagram in which a compact disc is held by a pair of compact disc holders; (B) is the right side view.
FIG. 35 is a conceptual schematic diagram showing external leakage magnetic flux generated at both ends when a compact disc holder shown in FIG. 37 described below is connected to the magnet member of the present invention.
FIG. 36 is a conceptual schematic diagram of a magnetic closed circuit showing an embodiment in a thirteenth aspect of the present invention.
FIG. 37 is a schematic diagram showing upper and lower multipolar (two poles) magnetization in which magnetic poles are provided concentrically on the magnet member of the present invention, (a) is a front view, (b) is a left side view, and (c) is a left side view. A right side view is shown.
FIG. 38 is a schematic diagram showing upper and lower multi-pole magnetization in which a magnet member of the present invention is provided with multi-poles obtained by dividing a circle into four parts, (a) is a front view, (b) is a left side view, and (c) is a left side view. A right side view is shown.
FIG. 39 is a schematic view showing a state where the magnet member of the present invention is vertically magnetized, wherein (a) is a front view, (b) is a left side view, and (c) is a right side view.
[Explanation of symbols]
S1, S2, S3, S4, S5, S6, S7, S8 Ferromagnetic article
1, 21, 31, 31 ', 41, 51, 61, 71 Compact disc holder 2, 22, 32, 42, 72 Magnet member
3, 23, 43, 53, 73 Holding part
3a, 23a, 53a Tip surface
4, 24, 44 Side wall
4a, 24a outer surface
4b Curved surface
5 Compact disc
6 Central hole
7 Protective cover
37 walls
38 Right holding part
38a, 39a end face
39 Left holding part
67 Convex
68 recess
77, 78 Wall member
101, 111, 121, 131 Compact disc holder
102, 112, 122, 132 Housing cover
103, 113a, 113b, 123, 133 Magnet member
104, 114, 124 Back side
105, 115, 125 Surface part
106, 116, 126 Storage unit
107, 117, 127 Flap part
108, 118, 128 Mounting band
109, 119 sheet member
114a recess
115a Notch
129 Extension
130 Projection
134 Connecting member
138 hole
139 Adsorption force auxiliary magnet
140 Support stand
141 Support base bottom
142 Joint plate

Claims (13)

A holding portion made of a magnet member that fits directly or through a cover member into the central hole of the compact disc, and a side wall portion that covers the side surface of the compact disc, and the tip surface of the holding portion is magnetically attracted to the ferromagnetic article. A compact disc holder characterized by holding a compact disc. The holding portion and the side wall portion formed so as to cover one side surface of the central portion of the compact disc are integrally formed, and the leading end surface of the holding portion and the outer surface portion of the side wall portion are attached to different polarities. The compact disc holder according to claim 1, wherein the compact disc holder is constituted by a magnetized magnet member. 3. A ferromagnetic wall member that magnetically attracts to the front end surface of the holding portion and covers a central side surface of the surface opposite to the surface covered by the side wall portion of the compact disk. Compact disc holder. 4. The compact disk according to claim 3, wherein the wall member is formed of a magnet and is magnetized to a magnetic pole different from a side opposite to the magnetic adsorption surface side of the tip surface of the holding portion. Retaining tool. 5. The compact disc holder according to claim 4, wherein the wall member is made of the same member as the compact disc holder according to claim 2. 6. The outer surface of the side wall portion or the outer surface of the wall member is formed in a substantially curved shape, and is rotatable when at least magnetically attracted to a flat ferromagnetic material. The compact disc holder according to crab. Consists of a storage cover that can store the compact disk that forms the side wall portion, and the holding portion that is made of a magnet member mounted substantially in the center of the storage cover, and stores the compact disk by the magnetic attraction force of the holding portion. The compact disc holder according to claim 1, wherein the cover is magnetically attracted to the ferromagnetic article. The compact disk is configured by an accommodating cover capable of accommodating a compact disk and a magnet member connected via a connecting member, and the magnet member is magnetically attracted to the ferromagnetic article via the accommodating cover and the connecting member. A compact disc holder characterized by holding. 9. The compact disc holder according to claim 7, wherein the housing cover is formed of a soft and transparent member. A compact disk holder, wherein an attractive force auxiliary magnet is attached to the ferromagnetic article and the compact disk holder according to any one of claims 2 to 9, or is interposed between a plurality of compact disk holders. Ingredients. 11. The compact disc holder according to claim 1, wherein the magnet member is a ferrite-based bonded magnet. A ferromagnetic support for magnetically attracting the compact disk holder according to any one of claims 1 to 11, wherein one magnet is magnetized on one side and the other side is magnetized on an S pole. A compact disk holder with a magnetic disk is fixed to the inside by a magnetic attraction force, and a magnetic joint plate is magnetically adsorbed between the last part of the compact disk holder and the bottom of the support base to form a magnetic closed circuit. A support for a compact disc holder, characterized by preventing external leakage magnetic flux. The magnet member is subjected to double-sided multipole magnetization, and the compact disk holder provided with the magnet member is fixed to the inside by magnetic attraction, and the rear part of the compact disk holder is made of a ferromagnetic material. 13. The support for a compact disc holder according to claim 12, wherein the joint plate is magnetically attracted to form a magnetic closed circuit to prevent external leakage magnetic flux.

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