Patent Application
20080263917
The present invention relates to a calendar board capable of distinguishing a holiday and an ordinary day with one block, and more particularly, to a block used for realizing a perpetual calendar on a writable board, which has magnetic force and expresses the same date indicated on both sides of the block with different colors, thereby distinguishing a holiday and an ordinary day with one with one block.
In general, a board for realizing a perpetual calendar using magnets having a date thereon serves as the perpetual calendar in such a way that rubber magnets, each of which has a date printed on one side thereof, are bonded on edges of sections divided at regular intervals while locations of the rubber magnets are changed whenever the month is changed.
However, such calendar board has several disadvantages in that a user cannot clearly distinguish holidays and ordinary days at a look since the dates written on the magnets are all colored with black, and in that the calendar board cannot secure usefulness in selling on the market since it is not acknowledged in its economical value as the perpetual calendar due to the above disadvantage.
To solve the above problems, Korean Utility Model Application No. 2004-0029310 (entitled “board having calendar function and monthly plan table function” and Korean utility Model Registration No. 20-0373966 (entitled “table calendar having monthly plan table function”, which have been invented by the same inventor as the present invention, respectively disclose a monthly plan board and a table calendar, which can distinguish holidays and ordinary days by providing two date blocks expressing the same date with two colors.
However, such board and calendar also have some disadvantages in that additional space for storing unused date blocks therein is needed, and in that it is possible to frequently loss the date blocks since the unused date blocks are stored in additional space.
Accordingly, the present invention has been made to solve the above-mentioned problems occurring in the prior art, and it is an object of the present invention to provide a calendar board capable of distinguishing a holiday and an ordinary day with one block, which can distinguish a holiday and an ordinary day by expressing the same date written on both sides of the block with different colors.
To accomplish the above object, according to the present invention, there is provided a calendar board capable of distinguishing a holiday and an ordinary day with one block, comprising: a board body in which a magnetic body is embedded and on which a date table is printed, the date table having a month indication section located on the front surface of the board body, an array of day sections located beneath the month indication section for dividing days, arrays of date sections located beneath the array of day sections, and a memo section having a space for allowing a user to take a memo; and thirty-one date blocks respectively bonded on an edge of the upper portion of each section of the arrays of date sections, each date block having two colors printed on both sides thereof for distinguishing a holiday and an ordinary day, each date block being smaller than the memo section formed on the date dividing table.
Reference will be now made in detail to the preferred embodiment of the present invention with reference to the attached drawings.
As shown in
At this time, the block 101 secures the receiving space 102 by two assemblable plates 101a and 101b engaging with each other, and the assemblable plates 101a and 101b respectively have opening portions 105 opened in the form of the same date. Color papers 106 are disposed at right and left sides of the magnet 103 and inserted into the receiving spaces 102, whereby the same date indicated on both sides of the block 101 is expressed with different colors.
At this time, to secure the receiving space of the block, the block includes a wall 101c injection-molded with a plastic material as high as the receiving space to be secured, and a protrusion 101d and a recess 101e corresponding with each other on the assemblable plate 101a. The assemblable plate 101b has the same form as the assemblable plate 101a, so that the two assemblable plates 101a and 101b are assembled with each other after being respectively injection-molded by just one mold.
Furthermore, the recess and the projection of the assemblable plate respectively have an inward jaw and an outward jaw so as to prevent a free separation from each other after engagement, and such engagement means have been known widely, and can be embodied by one of various known methods.
Alternatively, the wall 101c of the assemblable plate 101a is elongated and has a stepped part formed on the front end thereof and a screw thread formed on the stepped part, and the wall 101c of the assemblable plate 101b corresponding to the assemblable plate 101a has a screw thread formed on the outer periphery thereof, whereby the assemblable plates 101a and 101b are engaged with each other by screw-tightening.
The assemblable plates 101a and 101b can be engaged with each other by one of various known engagement methods since a change of the engagement method does not change the object of the present invention.
Moreover, the assemblable plates 101a and 101b can be assembled with each other by using neodymium for generating a number of magnetic lines so as to obtain strong bonding force without shielding the magnetic lines.
Additionally, the present invention may include a collapsible plate 116 formed on the lower end portion of the board body 110 and being inwardly collapsible toward the board body 110, thereby promoting convenience in use by allowing a user to easily store various blocks for indicating additional commemoration days or other indications.
At this time, the collapsible plate 116 mounted on the lower end portion of the board body 110 has coupling means 116a formed on the upper end portion thereof, and the board body 110 also has coupling means 110a formed on the lower end portion thereof for fixing the collapsible plate 116 thereon by fitting it on the coupling means 110a or detaching the collapsible plate 116 from the board body 110 by drawing out it from the coupling means 110a. The coupling means 116a and 110a are in a hinge type.
As described above, the calendar board according to the present invention has the block 101 having the same date, which is indicated on the both sides thereof with different colors, thereby distinguishing a holiday and an ordinary day with just one block. In more detail, the assemblable plates 101a and 101b constituting the block has the opening part 105 formed in a number for indicating a date, and the color papers 106 of different colors are accommodated in the receiving space 102 of the block 101, whereby the holiday and the ordinary day can be indicated with different colors by exposing the color papers 106 through the opening part 105. Additionally, the present invention can provide an ornamental board since the block can be formed in various shapes.
Furthermore, the board can store the blocks by attaching the block on the collapsible plate 116 in a state where the collapsible plate 116 is inwardly collapsed toward the board body 110, and store writing tools or an eraser for taking a memo on the collapsible plate 116 by unfolding the collapsible plate 116 mounted on the lower end portion of the board, thereby providing convenience in use.
As shown in the drawings, the date block 200 according to the second embodiment of the present invention is a magnet having a number on both sides thereof, and includes an isotropic rubber magnet 210, an anisotropic rubber magnet 220, and bonding means 240 for bonding the rubber magnets with each other.
The isotropic rubber magnet 210 is a common magnet which is generally used as stationery articles and simply attached on something without strong magnetic force or precision. Such isotropic rubber magnet is manufactured by a press process after adding magnetic powder particle, such as ferrite powder, with rubber material.
The anisotropic rubber magnet 220 is manufactured by giving a uniform directionality to ferrite powder particles, which are mixed with the rubber material, by mounting a magnetic field during a process for pressing out a rubber magnet. Such anisotropic rubber magnet is commonly used in precision instruments, such as motors, duplicators, and television sets.
In general, the isotropic rubber magnet 210 and the anisotropic rubber magnet 220 have different magnetic forces, i.e., a weak magnetic side and a strong magnetic side. Particularly, the isotropic rubber magnet 210 has a side which has strong magnetic force and the other side which has little magnetic force. In such rubber magnet, generally, the strong magnetic side is used for attachment, and the weak magnetic side is used for indicating a printed matter. Moreover, the strong magnetic side can be treated with UV coating so as to prevent coloring of the board on which the rubber magnet is attached.
In the present invention, the strong magnetic sides of the isotropic rubber magnet 210 and the anisotropic rubber magnet 220 are used as an indication part 230 in order to increase bonding force on both sides thereof. To increase bonding force on both sides of the indication part 230, the isotropic rubber magnet 210 and the anisotropic rubber magnet 220 are bonded with each other. At this time, since the strong magnetic sides of the isotropic rubber magnet 210 and the anisotropic rubber magnet 220 are the indication parts 230 and the weak magnetic sides thereof are bonded with each other, the both sides of the indication part 230 has increased bonding force, whereby the both sides of the indication part 230 can be bonded.
As described above, when the weak magnetic sides of the isotropic rubber magnet 210 and the anisotropic rubber magnet 220 are bonded with each other, the rubber magnets can be easily bonded since they do not have the same polarity. On the contrary, when the strong magnetic sides of the isotropic rubber magnet 210 and the anisotropic rubber magnet 220 are bonded with each other, since the rubber magnets push to each other due to existence of the same polarity on the rubber magnets, a product manufactured by the above bonding of the rubber magnets is deteriorated in quality and outward appearance. Furthermore, since the weak magnetic sides become the indication part 230 if the strong magnetic sides are bonded with each other, bonding force of the indication part 230 is lowered. Since the both sides of the block according to the present invention must be used all, the weak magnetic sides of the rubber magnets 210 and 220 are bonded with each other so that the strong magnetic sides become the indication parts 230.
The indication part 230 is a sticker on which a colored number or character is printed, and adhered on the isotropic rubber magnet 210 and the anisotropic rubber magnet 220. At this time, the indication parts 230 of different colors are respectively adhered on the isotropic rubber magnet 210 and the anisotropic rubber magnet 220 to distinguish them from each other. The indication parts 230 used on the board body 110 have the same number printed with two colors to distinguish a holiday and an ordinary day, and preferably, thirty-one indication parts 230 are prepared for indicating holidays and ordinary days without regard to months. In addition, the indication parts 230 can be used as pieces in games which is played by using two or more colors, namely, a game of chess or a game of yut (Korean traditional game). Alternatively, the indication part 230 may have a side on which a Chinese character or an English word is printed and the other side on which a Korean word is printed so as to improve children s study effect.
Moreover, the present invention can prevent coloring of the board body 110 due to a long-term bonding of the rubber magnets since the indication parts 230 disposed on the rubber magnets 210 and 220 are bonded on the board body 110 and so the rubber magnets are not directly bonded on the board body 110.
The bonding means 240 is to bond the weak magnetic sides of the isotropic rubber magnet 210 and the anisotropic rubber magnet 220 with each other so that the strong magnetic sides of the isotropic rubber magnet 210 and the anisotropic rubber magnet 220 indicate the numbers or characters or are bonded on the board. At this time, the bonding means 240 may be double-coated adhesive tape or adhesives.
As shown in
As shown in
In the embodiments of the present invention, the date blocks according to the present invention indicate dates, days, and commemoration days, but the present invention is not restricted to the above embodiments, and can be applied widely, for example, attachment to a refrigerator door, a computer, a duplicator or a cooling fan, various advertisements, sign boards, letter boards for education, or others.
While the present invention has been described with reference to the particular illustrative embodiments, it is not to be restricted by the embodiments but only by the appended claims.
As described above, the present invention can distinguish the holiday and the ordinary day with one date block by indicating the same date on both sides of the date block with different colors, and secure economic efficiency and usefulness on the market since it is simple manufactured.
| Number | Date | Country | Kind |
|---|---|---|---|
| 20-2005-0004306 | Feb 2005 | KR | national |
| 20-2005-0007489 | Mar 2005 | KR | national |
| Filing Document | Filing Date | Country | Kind | 371c Date |
|---|---|---|---|---|
| PCT/KR06/00558 | 2/17/2006 | WO | 00 | 8/16/2007 |
