Description

PAPER FRAME AND A COMBINED CARD AND FRAME

USING THEREOF

Technical Field

[1] The present invention relates to a paper frame, and a card fabricated from paper and usable as a frame. In particular, the present invention relates to a paper frame which allows a photograph or a picture to be easily and conveniently exhibitedand decorated, and a card not only used as an ordinary card for conveying information for the purpose of sales promotion, appreciation, invitation, etc., but also used as a desk frame or a wall-hanging frame by a receiver of the card. Background Art

[2] In general, a frame is fabricated from wood, metal, plastic or the like, into which an exhibit such as a photograph or a picture is inserted, so that the frame is usable as a means for decorating a wall, a table or the like. However, such a frame fabricated from such materials has problems in that its manufacturing costs are expensive and in that its manufacturing process is complicated.

[3] In addition, in order to retain a clean natural environment and to prevent environmental pollutionsuch as atmospheric pollution, soil pollution, or the like, it is more desirable to reduce the occurrence of wastes from the beginningthan to remove produced wastes. However, continuous use of such decorating products formed from a material difficult to recycle contributes to the occurrence of a lot of wastes, thereby accelerating environmental pollution.

[4] Meanwhile, an ordinary card, such as an invitation card, a sales promotion card, a thanks card, a congratulation card, etc., or a New Year's Card, is practically wasted once the message contained therein is informed to a counterpart, regardless of whether the content of the card is important or not or whether the card is aesthetically beautiful or not.

[5] In addition, even if the counterpart who has received the card wishes to put thecard aside for a long time, the card can be easily lost if it is not specially treated, for example, by putting it away in a storage case.

[6] Therefore, what is needed is a multifunctional card which can function not only as an ordinary card for informing a message but also as a desk frame or a wall-hanging frame.

[7] In addition, what is also needed is a multifunctional card which can be variously modified according to a card receiver's taste if the card receiver wishes to use the card as a frame.

Disclosure of Invention

Technical Problem

[8] Accordingly, the present invention is made in order to solve the above-mentioned problems, a first object of the present invention is to provide a paper frame which can be simply and conveniently fabricated by using a paper material, the manufacturing costs of which are inexpensive, and which can be fabricated from a material easy to recycle, thereby minimizing environmental pollution.

[9] A second object of the present invention is to provide a paper frame which is so durable and rigid that it can be continuously reused even though it is fabricated from a paper material, and whichcan be provided with a decorative feature so that the paper frame can serve as a desk frame or a wall-hanging frame, thereby satisfying both practical and aesthetic senses.

[10] A third object of the present invention is to provide a card usable as a frame, wherein the card can function as an ordinary card for conveying information and can be provided with one or more decorative features so that the card can function as a desk frame or a wall-hanging frame, thereby satisfying both practical and aesthetic senses.

[11] A fourth object of the present invention is to provide a card usable as a card, wherein the card can be variously decorated according to the selection of a card receiver in such a manner that the card can be used as a frame if desired. Technical Solution

[12] In order to achieve the above-mentioned objects, there is provided a paper frame comprising: a front unit having a plurality of folded supports at one or more edges thereof, and at least one sight window formed on the front side thereof; a rear unit having a plurality of folded second supports at one or more edges thereof, the second supports being in tight contact with thefirst supports, respectively; and at least one insertion unit inserted between the front unit and the rear unit at a position corresponding to the sight window, the insertion unit having one or more third supports formed at one or more edges thereof for supporting one or more edges of the sight window, respectively, wherein the front unit, the rear unit, and the insertion unit are assembled by being in tight contact with each other.

[13] The first supports, the second supports, and the third supports may be folded in a triangular cross-section, respectively.

[14] One folded wall of each of the first or second supports forms a side area of the paper frame.

[15] The front unit and the rear unit are formed by folding a sheet of continuous paper.

[16] Each of the third supports may be formed in an inverted triangular cross-section,

one side of which is in contact with the front unit, and an apex of which is in contact with the rear unit.

[17] An insertion slot may be formed in the rear unit at a position corresponding to one edge of the sight window.

[18] A marginal area extending from the one edge of the sight window may be folded between the front unit and the rear unit, thereby supporting the one edge of the sight window.

[19] The insertion slot in the rear unit is folded and engaged with the folded part at the one edge of the sight window.

[20] A part of the insertion unit corresponding to the one edge of the sight window extends and the insertion unit is folded to the outside of the rear unit through the insertion slot.

[21] An anchoring projection is formed at the top area of the rear unit.

[22] A folding line may be formed on the lower part of the rear unit, and a part of the rear unit is folded along the folding line, thereby forming an abutment capable of being partially spaced from the front unit while forming an inclined angle in relation to the front unit.

[23] The abutment is affixed to the front unit by one or more magnets and one or more metal pieces provided within the first supports and the second supports or within the first supports and the second supports, respectively.

[24] The magnets and metal pieces are affixed by auxiliary supports folded within and tightly contacted with the first and secondsupports, respectively.

[25] In order to achieve the above-mentioned objects, there is also provided a card usable as a frame, comprising: a card closure having a sight window for allowing the content of the card to be seen from the outside, and an anchoring projection formed at one end edge; a front unit having one or more insertion slitsfor removably inserting the content of the card, and an insertion slit engaged with the anchoring projection; and a support unit detachably attached to the front unit by magnetic force, wherein upon being attached to the front unit, the support unit forms a part of a rear unit, and upon being detached from the front unit, the support unit serves as a abutment for supporting the rear unit.

[26] The card may further comprise at least one additional card closure which can be assembled to or separated from the bodyof the card, the additional card closure having a sight window formed in a shape different from that of the above-mentioned sight window, the rear unit being formed with one or more insertion slits for removably assembling the additional card closure.

[27] The body of the card may be fabricated by a sheet of continuouspaper in such a manner that the lower end of the front unit is folded in a triangular cross-section, each

of left and right marginalareas of the front unit and the rear unit is folded in a triangular cross-section so that the left and right triangular cross-sections are symmetrical to each other, thereby securing support strength for preventing the distortion and flexure of the card body, and the folded parts are engaged with each other so as to form a hexahedral shape, thereby fulfilling the function as a frame, wherein the rear unit has cutout portions at a predetermined height from the bottom end thereof, so that the lower area of the rear unit below the cutout portions forms an abutment. [28] In order to achieve the above-mentioned objects, there is also provided a card usable as a frame, comprising: a card closure having a sight window for allowing the content of the card to be seen from the outside, and an anchoring projection formed at one end edge; a front unit having one or more insertion slits for removably inserting the content of the card, and an insertion slit engaged with the anchoring projection; and a support unit folded toward the front unit or detached from the front unit, wherein upon being folded, the support unit forms a part of a rear unit, and upon being detached from the front unit, the support unit serves as an abutment for supporting the rear unit, and wherein the front unit, the rear unit, and the support unit form a flat shape, and the rear unit has cutout portions formed at a predetermined height of from the bottom end thereof, so that the lower part of the rear unit below the cutout portions forms an abutment.

Advantageous Effects

[29] Because the inventive paper frame is formed from a paper material, its manufacturing costs are inexpensive, and because it is fabricated from a material easy to recycle, it is effective in minimizing environmental pollution. In addition, because each edge of the inventive paper frame includes a support formed in a triangular cross- section, the inventive paper frame is so durable and rigid that it can be continuously reused even if it is fabricated from a paper material. In addition, by providing a decorative feature, the inventive paper frame can serve as a desk frame or a wall- hanging frame, thereby satisfying both practical and aesthetic senses.

[30] In addition, the inventive card usable as a frame can provide a function as an aesthetic desk frame or an aesthetic wall-hanging frame, as well as a function as an ordinary card for conveying information. Furthermore, the outer appearance of the inventive card can be changed according to the selection of a card receiver in such a manner that the card can be used as a frame. Brief Description of the Drawings

[31] The foregoing and other objects, features and advantages of the present invention will become more apparent from the following detailed description when taken in

conjunction with the accompanying drawings in which: [32] FIG. 1 is a perspective view of a paper frame accordingto an embodiment of the present invention;

[33] FIG. 2 is a cross-sectional view taken along line A-A' of FIG. 1;

[34] FIG. 3 is a rear view of the paper frame of FIG. 1 ;

[35] FIG. 4 is a deployment view for the front and rear units of the paper frame of FIG. l;

[36] FIGs. 5 and 6 are deployment views of insertion units employed for assembling the paper frame of FIG. 1 ; [37] FIG. 7 is a front view of a card usable as a frame according to a second em- bodimentof the present invention, in which a closure of the card is unfolded; [38] FIGs. 8a to 8c show various card closures which can be applied to the card shown in FIG. 7. [39] FIG. 9 is a view for explaining an assembling structure of the body of the card of

FIG. 7; and [40] FIG. 10 is a perspective view of the card of FIG. 7.

Mode for the Invention [41] Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings. [42]

[43] First Embodiment

[44] [45] FIG. 1 is a perspective view of a paper frame according to an embodiment of thepresent invention, FIG. 2 is a cross-sectional view taken along line A-A' of FIG. 1, and FIG. 3 is a rear view of the paper frame of FIG. 1. [46] In addition, FIG. 4 is a deployment view for the front and rear units of the paper frame of FIG. 1, and FIGs. 5 and 6 are deployment views of insertion units employed for assembling the paper frame of FIG. 1. [47] As shown in FIGs. 1 to 6, the inventive paper frame includes a front unit 100, a rear unit 200, and at least one insertion unit 300, wherein the front unit 100, the rear unit

200 and the insertion unit 300 are assembled to be in tight contact, thereby forming a hexahedral shape. [48] In the inventive paper frame, which can be readily fabricated using a deployment view indicated on a paper material, at least one sight window for showing an exhibit inserted in the paper frame is formed in the front side of the front unit, and first supports 120, each of which is formed by folding the marginal areas 121, 123 and 125 of the front unit 100 along folding lines 120a, 120b and 12c, are positioned at one or

more edges of the front unit. Each of the first supports 120 is folded to the rear side of the front unit in a triangular cross-section in such a manner that a folded wall of the first support forms a side area or a part of such a side area of the paper frame at a cor- respondingedge of the front unit, and due to the triangular structure in cross-section of the first supports, the paper frame is sufficiently durable and rigid at theedges thereof, even though it is formed from a paper material.

[49] The term "marginal area"used herein means a part extending from a side or an edge of a paper sheet used for forming a front unit, a rear unit, or an insertion unit, wherein the marginal area is folded so as to form a support or an edge of the inventive paper frame.

[50] In order to form each of the first supports 120 in a triangularshape in cross-section by folding the marginal areas 121, 123 and 125, two or more, and preferably three or more folding lines are formed in each of the marginal areas 121, 123 and 125 of the front unit 100, and each first support 120 is formed in a triangular cross-section or a right-angled triangular cross-section by the walls thereof formed by folding a marginal area 121, 123 or 125 along the respective folding lines 120a, 120b and 120c. At this time, among the walls of each of the first supports, it is preferable to attach the wall formed by folding the corresponding marginal area 121, 123 or 125 along the outermost folding line 120c to a rear side of the front unit 100 with adhesive. Considering the convenient fabrication of such a support, it is more preferable to applying a dual sided adhesive tape to the wall of each of the first supports 120 to be attached to the rear side of the front unit 100, so that the first supports 120 can be easily attached to the front unit 100.

[51] The rear unit 200 supports the rear side of the front unit 100 of the paper frame, wherein second supports 210 formed by folding marginal areas 211 and 213 along folding lines 210a, 210b and 210c are also connected to the edges of the of the rear unit 200, respectively, as in the front unit. At this time, the secondsupports 210 correspond to and come into tight contact with the first supports 120, respectively. As the second supports 210 and thefirst supports 120 come into tight contact with each other, respectively, they form triangular shapes in cross-section, wherein the triangular shapes of the second supports 210 face the triangular shapes of the first supports 120, respectively, thereby preferably forming rectangular shapes in cross-section. Therefore, one of the walls of each of the first supports 120 or the second supports 210 forms a side area extending between the front unit 100 and the rear unit 200, and the walls of the first supports 120 and the second supports 210, which are in close contact with each other, form diametric areas in the respective rectangular cross-sections.

[52] The second supports 210 corresponding to the first supports are also formed by folding each of the marginal areas 211 and 213 along two or more, and preferably three

or more folding lines 210a, 210b and 210c formed on the marginal areas 211 and 213 in such a manner that each of the walls formed by folding a corresponding marginal area form a triangular shape in cross-section. In addition, the walls formed by folding the marginal areas 211 and 213 along the outer- most folding lines 210c are adhered to the front side of the rear unit 200 in the same manner as the first supports 120. At this time, the walls of the first and second supports, which come into tight contact with each other, are also adhered to each other in the same manner, wherein the interval between two adjacent folding lines for forming the first supports 120 and the second supports 210 are preferably controlled to correspond to each other, whereby each of the first and second supports forms a right-angled triangular cross-section.

[53] As shown in FIG. 4, the front unit 100 and the rear unit 200 are preferably formed from a sheet of paper, thereby being connected to each other. For this reason, the boundary area between the front unit 100 and the rear unit 200 is folded along folding lines formed on the boundary area, and the front unit 100 and the rear unit 200 form a structure which allows the front and rear units 100 and 200 to be correspondingly and tightly engaged and assembled with each other.

[54] Third supports 310 formed by folding marginal areas 311, 313 and 315 along folding lines 310a, 310b, 310c and 310d extend from the respective edges of the insertion unit 300, wherein the insertion unit 300 is inserted between the front unit 100 and the rear unit 200 so as to rigidly support a rectangular area surrounding a sight window 110 at the rear side of thesight window 110 through the third supports310. Each of the third supports 310 formed by folding the marginal areas 311, 313 and 315 of the insertion unit 300 has a triangular cross-section, wherein each of the marginal areas of the insertion unit 300 is formed with three or more, and preferably four or more folding lines 310a, 310b, 310c and 310d, so that walls formed by forming the marginal areas along the respective folding lines 310a, 310b, 310c and 310d have a triangular or right-angled triangular cross-section.

[55] One wall of each of the third supports 310 is attached to the rear side of the front unit at the surrounding areas of the sight windows 110. Preferably, each of the thirdsupports is attached at one wall thereof to the rear side of the front unit 100 in the same manner as the first and secondsupports 120 and 210.

[56] When the third supports 310 formed by folding the marginalareas 311, 313, 315 of the insertion unit along four folding lines 310a, 310b, 310c and 310d are attached to the rear side of the front unit 100, each of the third supports preferably takes a form of an inverted triangular shape with one side being attached to the rear side of the front unit 100 and an apex being in contact with the front side of the rear unit 200. By the third supports projecting forward from the insertion unit 300, there is formed an exhibit space 320 for inserting an exhibit between the sight window 110 and the insertion unit

300, wherein the exhibit can be affixed to the inside of the sight window 110 by the third supports 310 of the inverted triangular cross-section and the edges of the sight window 110.

[57] At this time, the insertion unit 300 is preferably formed with three or more third supports 310 at the edges thereof, and the front unit 100 and the rear unit 200 are also preferably formed with three or more first supports 120, and two or more second supports 210, respectively.

[58] The first supports 120, the second supports 210, and the thirdsupports 310, each of which is formed in a triangular cross-section and which are arranged between the front unit 100 and the rear unit 200, serve to strengthen the structure of the paper frame and to enhance the endurance of the paper frame.

[59] In addition, one side 111 of each sight window 110 is preferably folded between the front unit 100 and the rear unit 200 in the same manner as the first supports 120 or the second supports 210, so that the side 111 of the sight window 110 can be supported at an area where a third support 310 is not formed at an edge of the insertion unit 300 between the front unit 100 and the rear unit 200. That is, a partially cut area of a sight window 110 is folded along the folding lines 110a, 110b and 110c, thereby forming a fourth support 113, which is engaged with the rear side of the front unit 100 so as to support the rear side of the sight window 110.

[60] Preferably, insertion slots 220 extending in the widthwise direction are formed in the rear unit 200 in such a manner as to correspond to the fourth supports 113 in position, respectively.

[61] More preferably, each of the insertion slots 220in the rear unit 200 is formed in a pattern which is cut along the two lateral sides and the bottom or top side of a trapezoidal or rectangular shape, and in which a folding line 220a is formed along the top or bottom side of the trapezoidal or rectangular shape, thereby forming an insertion slot section 223a, which is folded toward and engaged with the corresponding fourth support 113. The insertion slot section 223a engaged with the corresponding fourth support 113 serves as a passage allowing an exhibit to be easily inserted into an exhibit space 310 formed in the inside of a sight window 110 through an insertion slot 220 from the rear unit 200.

[62] In order to assure that the above-mentioned passage is more securely provided, the insertion unit 300 is preferably formed with additional marginal area 330 of the insertion unit 300 corresponding to the above-mentioned one side 110 of a corresponding sight window 110 in position, wherein the marginal area 330 extends through a corresponding insertion slot 220, and then the marginal area 330 is folded along a folding line 330a to the outside of the rear unit 200 and attached to the rear unit 200.

[63] With this arrangement, an exhibit can be more smoothly inserted through the inlet of an insertion slot 220, and the inlet area of each of the insertion slots 220 can be reinforced, thereby improving the endurance of the insertion slots 220. Therefore, even if another exhibit is inserted in replacement of the previously inserted exhibit, the inventive paper frame can be continuously used.

[64] In addition, an anchoring projection 333 serving as a hanger for anchoring such a paper frame on a wall is also formed at the top of the rear unit 200, wherein the projection projects from the top end of the rear unit 200 and is formed with a through- hole 331. Preferably, the anchoring projection 333 is formed on the above-mentioned marginal area 330 of the insertion unit 300 projecting through the insertion slot 220 formed at the top area of the rear unit 200.

[65] In addition, a folding line 230a is formed on the lower area of the rear unit 200, so that a part of the lower area of the rear unit 200 is folded along the folding line 230a, thereby forming an abutment 240 which forms an inclined angle in relation to the front unit 100 and is partially spaced from the front unit 100. Preferably, a lower marginal area 241 extending from the rear unit 200 is folded along folding lines 240a, 240b and 240c to extend toward the first support 120 formed at the lower edge of the front unit 100 and then affixed to the first support 120, thereby forming the above-mentioned abutment 240, so that the inclinedangle of the abutment 240 is restricted.

[66] In order to reinforce the folding line 230a, the above-mentioned additional marginal area 330 of an insertion unit 300 overlapping and attached to the folding line 230a at the position of the lowermost insertion slot 220 is formed with a folding line 330a and the additional marginal area 330 is folded together with the abutment 240.

[67] In order to make the front unitlOO and the rear unit 200 retain tight contact with each other when the abutment 240 is not used, it is desired that the front unit 100 and the rear unit 200 are engaged with each other by a magnet and a metal piece, each of which is partially fixed withina first support 120 or a second support 210 at the lower parts of the front unit 100 and the rear unit 200, and the magnet and the metal piece are fixed by auxiliary supports 150 and 250 folded to the inside of the corresponding edges of the first support 120 or the second support 210. When the magnet is inserted into the first support, the metal piece is insertedinto the second support, thereby making the abutment 240 come into tight contact with the front unit and the rear unit.

[68]

[69] Second Embodiment

[70] FIG. 7 is a front view of a card usable as a frame according to a second em- bodimentof the present invention, in which a cover of the card is unfolded, and FIGs. 8a to 8c show various card closures which can be applied to the card shownin FIG. 7. In addition, FIG. 9 is a view for explaining an assembling structure of the body of the

card of FIG. 7, and FIG. 10 is a perspective view of the card of FIG. 7.

[71] The inventive card usable as a frame includes a card closure 402 and a card body

404, which in turn includes a front unit 502, a rear unit 504, and a support unit 506.

[72] The card closure 402 is formed with a sight window 406 allowing a part of the content of the card to be shownto the outside. Such a sight window may be formed in various shapes, such as a rectangular shape, a circular shape, a triangular shape, a star shape, a heart shape, etc., through which a part of the content of the card can be seen from the outside.

[73] The card closure 402 is formed with an anchoring projection 408 at one edge thereof, which can be fixedly engaged with the card body 404.

[74] Such a card closure 402 may be formed in a size equal to or smaller than that of the front unit 502 of the card body, and if desired, it is possible to provide two or more such card closures, each of which may be formed with a sight window 406 different from that of the initial card closure.

[75] If two or more card closures 402 are provided according to an embodiment of the present invention, it is possible to render a second or subsequent card closure to be freely engaged with or separated from the card body, wherein when such a second or subsequent card closureis engaged with the card body, it is possible to form an insertion slit 602 in the rear unit of the card body and to insert an end area of the card closure into the insertion slit 602, thereby fixing the card closure. As a result, a user may select a card closure formed with a sight window 406 of a desired shape among two or more card closures, whereby the card closures can be employed as various decorative products for a frame (see FIG. 8).

[76] The front unit 502 of the card body is formed with content insertion holes 412 for removably fixing a content to be exposed through the sight window 406, and an insertion hole 412, into which the anchoring projection 408 is inserted.

[77] The user can freely fix a photograph, a picture, or a clever expression by using the content insertion holes 410.

[78] In addition, by attaching permanent magnets 508 on marginal areas of the front unit

502, the support unit 506 connected to the rear unit 504 can be freely detachably attached to the front unit 502 by the magnetic force. This will be described in more detail with reference to FIG. 9.

[79] The inventive card usable as a frame is formed by folding the lower marginal area of the frontunit 502 of the card body 404 in a triangular cross-section, and by folding the left marginal areas 512 and 516 and the right marginal areas 514 and 518 of the front unit and the rear unit in such a manner that each of the marginal areas has a triangular cross-section, and the folded left and right marginal areas are symmetrical to each other, thereby securing sufficient supporting force for preventing the distortion

and flexure of the card body. In addition, as the folded marginal areas are engaged with the front unit or the rear unit, thereby forming the card body in a hexahedral shape, the card body can satisfactorily function as a frame.

[80] In addition, cutout portions 520 are formed adjacent to the lower end of the rear unit

504, so that when the card is used as a frame, the area below the lower end of the rear unit 504 serves as a support for supporting the frame (hereinafter, the area is referred to as the support unit).

[81] The support unit 506 is configured to be detachably attached to the front unit 502 by magnetic force, wherein the lower area 522 of the support unit 506 is configured to serve as an abutment for supporting the card body in a predetermined inclined angle when the support unit 506 is separated from the front unit 502.

[82] For this purpose, the front unit 502 engaged with or separated from the support unit

506 by magnetic force has permanent magnets provided within the marginal areas folded in a triangular cross-section, respectively, at the positions corresponding to the support unit, and the support unit 506 has magnetic substances 510 provided within the marginalareas folded in a triangular cross-section, respectively, at the positions corresponding to the permanentmagnets of the front unit. In a preferred embodiment, the magnetic substances 510 may be formed from an iron material which can be effectively attracted within a magnetic field formed by the permanent magnets.

[83] According to another embodiment of the present invention, the permanent magnets are provided within the marginal areas of the support unit 506 folded in a triangular cross-section, and the magnetic substances may be provided within the marginal areas of the front unit 502 folded in a triangular cross-section.

[84] Upon being adhered to the front unit 502 by magnetic force, thesupport unit 506 is integrally engaged with the rear unit 504, and upon being separated from the front unit by external physical force, the lower part 522 folded within a space formed between the front unit and the support unit is extended, thereby serving as an abutment of the card body, and the support unit forms an angle in relation to the front unit, thereby forming a support for the card body.

[85] In a preferred embodiment of the present invention, permanent magnets 604 may be provided within the upper parts of the marginalareas of the rear unit folded in a triangular cross-section, so that the card can be attached to a magnetically influenced area. Such a magnetically influenced area may include a wall surface provided with a magnetic substance or a surface of a refrigerator.

[86] In a preferred embodiment of the present invention, it is possible to form a wall- hanging hole 606 at the top end of the card closure, so that the card can be hooked onto a hanger in a form of a peg. Preferably, it is possible to form a wall-hanging arrangement in a foldable type, so that it can be fixed to or separated from an insertion

groove formed in the rear unit.

[87] In a preferred embodiment of the present invention, the inventive card may include a writing area 410 for writing a memo notes or a message on the body of the support unit.

[88] Such a writing area 610 may be formed in an integrated type or a removable type in relation to the body of the support unit. However, it is preferable to form such a writing area so that it is separated from the body of the support unit 506 by a folding line or a perforated line, whereby a user can easily and conveniently remove the writing area from the body of the support unit as needed.

[89] Although FIGs. 9 and 10 illustrate an embodiment for formingthe card which is also usable as a frame in a hexahedral shape, those skilled in the art will appreciate that the inventive card can be formed in a flat structure.

[90] That is, in the embodiment of FIG. 9, the lower end of the front unit 502 was folded in a triangular cross-section, and the left and right marginal areas 512, 514, 516 and 518 of the front and rear units were symmetrically folded in a triangular cross-section and engaged with the front unit or the rear unit, thereby forming a hexahedral shape. However, beyond bodies of the front and rear units, it is possible to omit or to adhesively attach the extensions formed to be folded in a triangular cross-section to the bodies of the front or rear units, so that the card takes a form of a flat rectangular structure.

[91] Of course, in the embodiment of such a flat structure, the support unit 506 is configured in such a manner thatit can be engaged with or separated from the front unit 502 by external physical force, wherein the support unit 506 serves as a support for supporting the card body when the support unit is separated.

[92] In addition, if the support unit 506 is separated by external physical force, the lower part 522 of the support unit folded between the front unit 502 and the support unit 506 is extended, thereby serving as an abutment. Industrial Applicability

[93] Although several preferred embodiments of the present invention have been shown and described for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims.