Perpetual calendar

Abstract

The present invention relates to a perpetual calendar which comprises: a plate-shaped body in which both left and right edges have a round shape; and a panel unit including a date display film surrounding an outer circumferential surface of the body and having multiple date display characters displaying a date, the date display film sliding on the outer circumferential surface of the body.

Description

perpetual calendar

[0001] The present invention relates to a perpetual calendar.

[0002] Typically, the number of days in each of the twelve months included in a calendar can vary from month to month. Furthermore, the days within a month can fall on different days of the week. Therefore, users who wish to use a calendar typically need to prepare a new calendar for each new year, and new calendars are produced each year.

[0003] Calendars made of paper have a short lifespan, and calendars made of synthetic resin are bulky, take up a lot of space, and are inconvenient to store and mail.

[0004] Korean Patent Publication No. 2342093 discloses a perpetual calendar that allows the user to easily change the date for the corresponding month and day by sliding the date panel left and right.

[0005] The perpetual calendar has a day-number change structure, a day-of-the-week change structure, and includes panels with multiple overlapping dates compared to a regular calendar. This structure allows the calendar to be larger than the size required to display a month in a regular calendar.

[0006] Therefore, compared to a regular calendar that divides a year into months, a perpetual calendar takes up a large amount of space, which may reduce the space utilization of the perpetual calendar.

[0007] Furthermore, because the panels of a perpetual calendar are exposed to the outside, it can be difficult to display the different colors of each day of the week, given the inherent characteristics of a perpetual calendar, which requires the day of the week to change each month. Consequently, all dates on the panels are displayed in the same color, and the calendar's inherent functionality is inherently inferior to that of a standard calendar.

[0008] (Prior art literature)

[0009] (Patent Document 1) Korean Patent Publication No. 2352093

[0010] The present invention is to provide a perpetual calendar that is compact, easy to distinguish between days of the week, and easy to use.

[0011] The perpetual calendar according to the present invention,

[0012] A plate-shaped body with rounded corners on both sides; and

[0013] It includes a date display film that wraps around the outer surface of the above body and has a plurality of date display characters formed to indicate the date.

[0014] The above body is characterized in that the date display film is supported so as to be slidable on the outer surface of the body.

[0015] At this time, it is preferable to further include at least one elastic body disposed inside the body and having elasticity to provide pressure to push the body outward.

[0016] Additionally, it is preferable that the elastic body is a spring or foam.

[0017] At this time, a date display area is divided on the front of the body, in which a calendar corresponding to a certain month is displayed,

[0018] The above date display film has an opaque first color, and the date display characters are formed to have a hole shape or a transparent color,

[0019] A first table board having an opaque color different from the first color and attached to the front of the body to correspond to the date display area, and disposed between the date display film and the body,

[0020] As the date display film slides, it is preferable that the color of the first table board is exposed to the date display characters located in the date display area.

[0021] In addition, the date display film has the date display characters formed in six rows,

[0022] In the first row, date display characters from 1 to 7 are arranged sequentially along the direction of movement of the date display film.

[0023] In the second row, date display characters from 2 to 14 are arranged in order along the sliding direction,

[0024] In the third row above, date display characters from 9 to 21 are arranged in order along the sliding direction,

[0025] In the fourth row above, date display characters from 16 to 28 are arranged in order along the sliding direction,

[0026] In the fifth row above, date display characters from 23 to 31 are arranged in order along the sliding direction.

[0027] In the above 6th row, date display characters from 30 to 31 are arranged in order along the sliding direction,

[0028] The date display character 1 of the first row, the date display character 8 of the second row, the date display character 15 of the third row, the date display character 22 of the fourth row, and the date display character 29 of the fifth row are arranged in the same column,

[0029] The date display character 2 of the second row, the date display character 9 of the third row, the date display character 16 of the fourth row, the date display character 23 of the fifth row, and the date display character 30 of the sixth row are arranged in the same column,

[0030] It is preferable that the above date display area has a size such that six rows and seven columns of the above date display characters on the above date display film are displayed.

[0031] In addition, on the front of the body, a month display area is defined above the date display area,

[0032] On the front surface of the body, a month display film is positioned on top of the date display film and is slidable on the outer surface of the body, and 12 month display characters indicating the month are formed to be listed in a row direction; and

[0033] Further comprising a second table board attached to the front of the body to correspond to the month display area and positioned between the month display film and the body;

[0034] The size of the above month display area and the second table board is such that one of the month display characters is displayed,

[0035] The above month display film has an opaque second color, and the month display characters are formed to have a hole shape or a transparent color,

[0036] It is preferable that the second table board has an opaque color different from the second color, so that as the month display film slides, the color of the second table board is exposed to the month display characters located in the month display area.

[0037] In addition, it further includes a front cover arranged at the outermost part and including at least one opening through which the date display area is exposed,

[0038] It is preferable that the above front cover covers a portion of the date display film that is not located in the date display area.

[0039] In addition, it is preferable to further include a handle connected to the date display film. In addition, the body,

[0040] A square plate unit having an area where the above date display characters are displayed; first and second round units each disposed on both sides of the square plate and connected to both ends of the square plate, each end having a round shape;

[0041] It is preferable to further include a plurality of side elastic bodies arranged in the spaces formed between the first and second round units and both sides of the square plate to provide pressure to push the first and second round units outward.

[0042] In addition, a date display area is divided on the front of the above body, in which a calendar corresponding to a certain month is displayed,

[0043] Further comprising at least one cover that covers at least one specific date display character among the date display characters exposed in the date display area to block exposure of the specific date display character,

[0044] It is preferable that the above cover include a front cover disposed on the date display film and a rear cover disposed in the internal space of the body and capable of being joined to the front cover by force.

[0045] According to the present invention, a film displaying multiple overlapping dates can be flexibly formed and formed to wrap around a body. The ends of the body wrapped by the film are rounded, allowing the film to easily slide along the body's outer periphery. Therefore, the side portions of the film, which previously extended outward, slide toward the back of the body as the body rotates, thereby reducing the size of the perpetual calendar compared to previous models.

[0046] In addition, according to the present invention, by forming the date transparently (for example, by making a hole) and forming a color in the background, the colors of weekdays and weekends can be displayed separately even if the position of the date moves due to the change of the month.

[0047] Furthermore, according to the present invention, by housing an elastic body within the body, the body pushes the film outward, maintaining a flat surface. Therefore, even if the perpetual calendar is subjected to external environmental changes or mechanical shocks, the film can be prevented from becoming uneven or deformed, resulting in inaccurate date display. This significantly enhances the durability and reliability of the product.

[0048] Figure 1 is a perspective view of the entire perpetual calendar according to an embodiment of the present invention.

[0049] Figure 2 is an exploded perspective view of the body shown in Figure 1.

[0050] Figure 3 is a perspective view of the panel section.

[0051] Figure 4 is a drawing showing the films of the panel section unfolded.

[0052] Figure 5 is an assembly drawing of the perpetual calendar shown in Figure 1.

[0053] Figure 6 is a drawing showing the appearance of an elastic body stored in a body.

[0054] Fig. 7 is an exploded perspective view of a perpetual calendar according to another embodiment of the present invention.

[0055] FIG. 8 is a drawing showing a perpetual calendar (1000-2) according to another embodiment of the present invention.

[0056] Before describing the present invention in detail below, it should be understood that the terminology used in this specification is for the purpose of describing specific embodiments only and is not intended to limit the scope of the present invention, which is limited solely by the scope of the appended utility model claims. Unless otherwise specified, all terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art.

[0057] Throughout this specification and claims, unless otherwise stated, the terms "comprise," "comprises," and "comprising" are used to mean including a stated item, step, or group of items, and steps, but not to the exclusion of any other item, step, or group of items, or group of steps.

[0058] Additionally, in the drawings, the width, length, thickness, angle, etc. of components may be exaggerated for convenience. The drawings are described from the perspective of an observer, and when a component is said to be "above / below" or "on / below" another component, this includes not only cases where it is "directly above / directly below" another component, but also cases where there is another component in between.

[0059] Meanwhile, the various embodiments of the present invention may be combined with any other embodiments unless explicitly indicated otherwise. In particular, any feature indicated as desirable or advantageous may be combined with any other feature or features indicated as desirable or advantageous.

[0060] Hereinafter, a perpetual calendar according to an embodiment of the present invention will be described in more detail with reference to the drawings.

[0061] Fig. 1 is a perspective view of the entire perpetual calendar according to an embodiment of the present invention, and Fig. 2 is an exploded perspective view of the body illustrated in Fig. 1. Fig. 3 is a perspective view of a panel portion, and Fig. 4 is a drawing showing the films of the panel portion unfolded. Fig. 5 is an assembly diagram of the perpetual calendar illustrated in Fig. 1.

[0062] Referring to FIGS. 1 to 5, a perpetual calendar (1000) according to an embodiment of the present invention can display twelve months and the dates included in those months on a monthly basis with one film.

[0063] The perpetual calendar (1000) according to the present embodiment has a three-dimensional shape. Specifically, the perpetual calendar (1000) has a plate shape with rounded corners on both the left and right sides. The date can be displayed on the front of the plate shape of the perpetual calendar (1000). In the present invention, the perpetual calendar (1000) can be used by standing it up by a stand (400) as needed. In the embodiment of the present invention, the stand (400) supports the bottom surface of the perpetual calendar (1000), but the position of the stand (400) is not particularly limited, and in another embodiment, the stand (400) is arranged to support the back surface of the plate shape of the perpetual calendar (1000), so that the perpetual calendar (1000) can be stood up slanted.

[0064] The perpetual calendar (1000) includes a body (100), a lid (200), a panel portion (300), a table board (BS1, BS2), an elastic body (SP), and a stand (400).

[0065] The body (100) serves to maintain the external shape of the perpetual calendar (1000) and provides structural stability. In addition, the perpetual calendar (1000) protects and supports components stored within the body (100) and the panel portion (300) arranged on the outer surface of the body (100).

[0066] The body (100) has a plate shape with rounded corners on both left and right sides. The body (100) provides a smooth surface so that the panel portion (300), which will be described later, can slide easily. The present invention does not specifically limit the material of the body (100), but for example, the body (100) may be made of plastic or metal to ensure durability.

[0067] The body (100) includes a front plate (110) and a rear plate (120). One or more lattice-shaped (PT) portions may be provided on the inner side of each of the front plate (110) and the rear plate (120). The bulkhead (PT) serves to reinforce the strength of the body (110). Specifically, it can prevent the body (100) from being crushed, damaged, or bent due to external pressure.

[0068] On the front panel (110), display areas (DA1, DA2) on which a calendar is displayed can be defined. That is, the calendar is displayed through the display areas (DA1, DA2). In the present embodiment, the display areas (DA1, DA2) may include a date display area (DA1) on which a date is displayed and a month display area (DA2) on which a month is displayed. The positions of the date display area (DA1) and the month display area (DA2) are not particularly limited, but in the present embodiment, the month display area (DA2) may be defined on the upper side of the date display area (DA1).

[0069] The front plate (110) and the rear plate (120) are coupled to each other to form an outer frame of the body (100). In the present embodiment, the front plate (110) and the rear plate (120) can be coupled to each other through a fixing bracket (FB) formed on the inner side of each.

[0070] In the present embodiment, the body (100) may further include a fixing ring (130). The fixing ring (130) has a ring shape that surrounds the body (100). The fixing ring (130) includes a front ring (131) and a rear ring (132). The front ring (131) and the rear ring (132) are male and female coupled to each other to form the ring shape. In the present embodiment, a fastening groove (G) for fitting the fastening ring (130) may be formed in some areas of the front plate (110) and the rear plate (120) of the body (100). The front ring (131) is fastened to the fastening groove (G) of the front plate (110), and the rear ring (132) is fastened to the fastening groove (G) of the rear plate (120). The fastening ring (130) may improve the bonding strength between the front plate (110) and the rear plate (120). In another embodiment of the present invention, a phrase may be formed on the surface of the fixed ring (130) at the user's discretion.

[0071] In the present invention, the upper and lower positions of the fixed ring (130) are not particularly limited, but as an example, the fixed ring (130) may be placed between the day display area (DA1) and the month display area (DA2) on a plan view to distinguish the two display areas (DA1, DA2).

[0072] The lid (200) is arranged at the top and bottom of the body (100) to form the external shape of the perpetual calendar (1000) together with the body (100), while providing structural stability. The lid (200) includes an upper lid (210) and a lower lid (220). The upper lid (210) covers the upper side of the body (100), and the lower lid (220) covers the lower side of the body (100). The perpetual calendar (1000) according to the present embodiment may be manufactured so that the upper lid (110) or the lower lid (220) can be easily opened and closed, if necessary.

[0073] The panel portion (300) is formed to surround the outer surface of the body (100). The panel portion (300) is provided to be slidable on the outer surface of the body (100).

[0074] The body (100) supports the panel part (300) so that the panel part (100) can slide.

[0075] Although not shown in the drawings, the perpetual calendar (1000) may further include a handle. The handle is connected to the panel part (300) and has a form exposed to the outside. Therefore, the user can hold the handle and easily slide the panel part (300). In the present invention, the specific means for providing the handle and the connection / arrangement relationship are not particularly limited.

[0076] The panel part (300) may be in the form of a film on which a plurality of numbers are formed. Specifically, the panel part (200) includes a date display film (310) and a month display film (320).

[0077] A plurality of date display characters (DL) may be formed on the date display film (310). The date display characters (DL) display the date (day).

[0078] The date display characters (DL) may be formed in 6 rows on the date display film (310).

[0079] In the first row, the date display characters (DL) from 1 to 7 may be arranged in order along the sliding direction of the date display film (310).

[0080] In the second row, the date display characters (DL) from 2 to 14 may be arranged in order along the sliding direction of the date display film (310).

[0081] In the third row, the date display characters (DL) from 9 to 21 may be arranged in order along the sliding direction of the date display film (310).

[0082] In the fourth row, the date display characters (DL) from 16 to 28 may be arranged in order along the sliding direction of the date display film (310).

[0083] In the fifth row, date display characters (DL) from 23 to 31 can be arranged sequentially along the sliding direction of the date display film (310).

[0084] In the 6th row, date display characters (DL) from 30 to 31 can be arranged sequentially along the sliding direction of the date display film (310).

[0085] The date display character 1 in the first row, the date display character 8 in the second row, the date display character 15 in the third row, the date display character 22 in the fourth row, and the date display character 29 in the fifth row can be arranged in the same column.

[0086] The date display character 2 in the second row, the date display character 9 in the third row, the date display character 16 in the fourth row, the date display character 23 in the fifth row, and the date display character 30 in the sixth row can be arranged in the same column.

[0087] In the present embodiment, the date display area (DA1) may have a size in which six rows and seven columns of date display characters (DL) on the date display film (310) are displayed. A portion of the date display film (310) is positioned to overlap the date display area (DA1), and as the date display film (310) slides, the date display characters (DL) formed on the date display film (310) and located in the date display area (DA1) may be displayed.

[0088] The date display film (310) has an opaque first color (DC1). The date display characters (DL) may be transparent. For example, the date display characters (DL) may have a hole shape or be formed to have a transparent color.

[0089] The month display film (320) may have a plurality of month display characters (ML) formed thereon. The month display characters (ML) represent months. Specifically, the month display characters (ML) include characters representing 12 months and may be formed on the month display film (320) so as to be arranged in the row direction.

[0090] In this embodiment, the month display area (DA2) may have a size in which one month display character (ML) among the month display characters (ML) on the month display film (320) is displayed. As the month display film (320) slides, one month display character (ML) located in the month display area (DA2) among the month display characters (ML) formed on the month display film (320) may be displayed.

[0091] The month display film (320) has an opaque second color (DC2). The month display characters (ML) may have light transmissivity. Exemplarily, the month display characters (ML) may have a hole shape or may be formed to have a transparent color.

[0092] In this embodiment, the first color (DC1) and the second color (DC2) may be the same as the color of the body (100). However, the first color (DC1) and the second color (DC2) are not particularly limited in the present invention.

[0093] The table boards (BS1, BS2) are disposed between the front panel (110) and the panel part (300). The table boards (BS1, BS2) are attached to and fixed to the front panel (110). That is, the table boards (BS1, BS2) do not move even when the films (310, 320) slide on the outer circumferential surface of the body (100).

[0094] The table boards (BS1, BS2) include a first table board (BS1) and a second table board (BS2).

[0095] The first table board (BS1) is attached to the front surface of the front plate (110) so as to correspond to the date display area (DA1). The first table board (BS1) has an opaque color (C1, C2) different from the first color (DC1). Therefore, as the date display film (310) slides, the colors (C1, C2) of the first table board (BS1) can be exposed to the date display characters (DL) located on the date display area (DA1).

[0096] In this embodiment, the first table board (BS1) may have multiple opaque colors (C1, C2). For example, the area on the first table board (BS1) where the date display characters (DL) corresponding to Sunday are located may be red (C1). The area on the first table board (BS1) where the date display characters (DL) corresponding to weekdays and Saturdays are located may be black (C2).

[0097] In Fig. 2, the first table board (BS1) is illustrated as including two colors (C1, C2), but the present invention is not limited thereto. In another embodiment of the present invention, the colors of the first table board (BS1) may be designed to display different colors for Sunday, Saturday, and weekdays, respectively.

[0098] For example, the area on the first table board (BS1) where the date display characters (DL) corresponding to Saturday are located may be blue.

[0099] The second table board (BS2) is attached to the front surface of the front panel (110) to correspond to the month display area (DA2). The first table board (BS2) has an opaque color (C3) different from the second color (DC2). Therefore, as the month display film (320) slides, the color (C3) of the second table board (BS2) can be exposed to the month display characters (ML) located on the month display area (DA2). The present invention is not particularly limited to the color of the second table board (BS2).

[0100] According to the present invention, the perpetual calendar (1000) may further include a third tableboard (BS3). The third tableboard (BS3) may be positioned between the first tableboard (BS1) and the second tableboard (BS2). A plurality of day-of-the-week characters (WL) may be displayed on the third tableboard (BS3). That is, characters indicating Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, and Sunday may be formed by being listed in a row direction on the third tableboard (BS3).

[0101] The film does not move on the third table board (BS3). In addition, the day-of-week characters (WL) have an opaque color. Therefore, all day-of-week characters (WL) formed on the third table board (BS3) can be exposed to the outside.

[0102] Figure 6 is a drawing showing the appearance of an elastic body stored in a body.

[0103] Referring to Fig. 6, the elastic body (SP) of the perpetual calendar (1000) according to the present invention is housed inside the body (100). The elastic body (SP) has elasticity and restoring force, and provides pressure to push the body (100) outward. In the present embodiment, the elastic body (SP) may be a spring or foam.

[0104] In Fig. 6, a case is illustrated where the elastic body (SP) is accommodated within a bracket (FB') separately provided on the inside of the body (100). The bracket (FB') serves to guide the elastic body (SP) so that it does not twist or move out of position. Although not illustrated in the drawing, according to another embodiment of the present invention, the elastic body (SP) may be fitted into the bracket (FB') in a direction that surrounds the outside of the bracket (FB').

[0105] According to the present invention, the elastic body provides pressure that pushes the body (100) outward, so that the panel portion (300) can be fixed flat without becoming uneven or wrinkled. In addition, even if an impact is applied from the outside, the panel portion can absorb the impact and reduce vibration, thereby increasing durability. The number of elastic bodies (SP) in the present invention is not limited.

[0106] Fig. 7 is an exploded perspective view of a perpetual calendar according to another embodiment of the present invention.

[0107] Referring to FIG. 7, a perpetual calendar (1000-1) according to another embodiment of the present invention may further include a front cover (140) and a rear cover (150) arranged at the outermost portion.

[0108] The front cover (140) covers the front plate (110) of the body (100).

[0109] The front cover (140) includes a first front cover (140) and a second front cover (142).

[0110] The first front cover (140) covers a portion of the date display film (310). The first front cover (141) has a first opening (OP1) that exposes the date display area (DA1). That is, the first front cover (141) exposes only the date display area (DA1) through the first opening (OP1), thereby covering the remaining area of ​​the date display film (310) that is not located in the date display area (DA1). Therefore, visibility can be improved.

[0111] The second front cover (142) covers a portion of the month display film (320). The second front cover (142) has a second opening (OP2) that exposes the month display area (DA2). That is, the second front cover (142) exposes only the month display area (DA2) through the second opening (OP2), thereby covering the remaining area of ​​the month display film (320) that is not located in the month display area (DA2). Therefore, visibility can be improved.

[0112] The rear cover (150) covers the rear plate (120) of the body (100). The rear cover (150) includes a first rear cover (151) and a second rear cover (152). The first rear cover (151) is coupled with the first front cover (141) and has a ring shape. The second rear cover (152) is coupled with the second front cover (142) and has a ring shape.

[0113] In Fig. 7, the rear cover (150) does not include an opening, but an opening may be formed as needed. For example, the calendar may be designed to be used on both sides, or a film for other purposes may be exposed through an opening formed separately in the rear cover (150).

[0114] In addition, although not shown in the drawing, the perpetual calendar (1000, 1000-1) according to the present invention may include at least one cover. The cover may cover a portion of an area to hide a specific date among the date display characters (DL) displayed on the date display film (320). For example, the specific date may be at least one of 29, 30, and 31. That is, the cover may hide at least one of 29, 30, and 31 among the date display characters (DL) so that it is not displayed on the display area (DA1). The size and number of covers may be adjusted depending on the number of date display characters (DL) to be covered.

[0115] In the present invention, the cover may be formed to be detachable from the date display area (DA1). For example, the cover may include a front cover and a rear cover, and the front cover and the rear cover may be magnetically coupled to each other. That is, at least one of the front cover and the rear cover may include a magnetic material. If only one of the two is magnetic, the other may include a metallic material capable of generating an attractive force with the magnetic material.

[0116] The front cover may be placed on the date display film (310), and the rear cover may be placed on the inside of the front plate (110) of the body (100). Specifically, the rear cover may be placed on the front plate (110) by being accommodated in a space partitioned by a partition (PT) formed on the inside of the front plate (110). The front cover may be detached from the date display area (DA1) by the force of attraction between the front cover and the rear cover.

[0117] In another embodiment of the present invention, when the body (100) or the date table board (BS1) is formed of metal, the cover may include only the front cover, and the front cover may be combined with the body (100) or the date table board (BS1) with the date display film (310) therebetween. In addition, in another embodiment of the present invention, when the front cover does not include magnetism, the front cover may be fastened to a part of the first front cover (140) illustrated in FIG. 7, thereby covering a part of the date display area (DA1).

[0118] FIG. 8 is a drawing showing a perpetual calendar (1000-2) according to another embodiment of the present invention.

[0119] Referring to FIG. 8, the body (100) of the perpetual calendar (1000-2) according to the present embodiment further includes a plurality of units forming the exterior of the body (100). Specifically, the body (100) may include a front plate (110), a rear plate (120), a first round unit (130a), and a second round unit (130b).

[0120] In this embodiment, the outer shape formed by the front plate (110) and the rear plate (120) may be a square plate shape. That is, the two end corners of the outer shape formed by combining the front plate (110) and the rear plate (120) do not have a round shape.

[0121] The first round unit (130a) and the second round unit (130b) are arranged at both ends of a square plate formed by the front plate (110) and the rear plate (120). The first round unit (130a) is coupled to one end of the square plate, and the second round unit (130b) is coupled to the other end of the square plate.

[0122] The first round unit (130a) includes a first upper unit (131a) and a first lower unit (132a). The first upper unit (131a) is coupled to one end of the square plate so as to correspond to a portion of the area where the second display film (320) is placed. The first lower unit (132a) is coupled to one end of the square plate so as to correspond to a portion of the area where the first display film (310) is placed. That is, the first lower unit (132a) is placed lower than the first upper unit (131a).

[0123] The second round unit (130b) includes a second upper unit (131b) and a second lower unit (132b). The second upper unit (131b) is coupled to an area at the other end of the square plate so as to correspond to a portion of the area where the second display film (320) is placed. The second lower unit (132b) is coupled to an area at the other end of the square plate so as to correspond to a portion of the area where the first display film (310) is placed. That is, the second lower unit (132b) is placed lower than the second upper unit (131b).

[0124] In another embodiment of the present invention, each of the first round unit (130a) and the second round unit (130b) may have an integral shape. In addition, in another embodiment of the present invention, the front plate (110) and the rear plate (120) may have an integral shape that is not separated from each other.

[0125] According to the present embodiment, the square plate (110, 120) may further include at least one connecting bump (BP) at each end and at least one side elastic member (SP-2) at each end. The connecting bump (BP) has a shape that protrudes outward from each end of the square plate (110, 120) in a direction toward each end. In the present embodiment, the side elastic member (SP-2) may be a spring. The side elastic member (SP-2) may be provided in a form that is fitted into the connecting bump (BP). The side elastic member (SP-2) and the connecting bump (BP) are covered by the first round unit (130a) and the second round unit (130b). That is, when the first round unit (130a) and the second round unit (130b) are combined with the square plate (110, 120), a side elastic body (SP-2) and a connecting bump (BP) can be placed in the internal space that is partitioned.

[0126] According to the present embodiment, the side elastic members (SP-2) provide pressure that pushes the first round unit (130a) and the second round unit (130b) outward toward the two ends. Accordingly, the panel portion (300) can be fixed flat without being uneven or wrinkled.

[0127] In another embodiment of the present invention, when the side elastic bodies (SP-2) are provided as foam rather than springs, the connecting bumps (BP) may be omitted.

[0128] The features, structures, effects, etc. exemplified in each of the aforementioned embodiments can be combined or modified to implement other embodiments by those skilled in the art. Accordingly, the contents related to such combinations and modifications should be construed as being included within the scope of the present invention.

[0129] (Explanation of symbols)

[0130] 1000: Perpetual Calendar 100: Body

[0131] 110: Front panel 120: Back panel

[0132] 130: Fixed ring 131: Front ring

[0133] 132: Rear ring G: Fastening groove

[0134] 200: Lead 210: Upper Lead

[0135] 220: Lower lid 300: Panel part

[0136] 310: Date display film 320: Month display film

[0137] 400: Pedestal OP: Opening

[0138] C1: First color C2: Second color

[0139] C3: Third color BS1: Date table board

[0140] BS2: Wall Table Board FB: Fixed Bracket

[0141] ML: Month display character WL: Week display character

[0142] DL: Date display character PT: Bulkhead

[0143] SP: Elastic 140: Front cover

[0144] 150: Back cover DA: Display area

[0145]

Claims

1. A plate-shaped body with rounded corners on both sides; and It includes a date display film that wraps around the outer surface of the above body and has a plurality of date display characters formed to indicate the date. The above body is a perpetual calendar that supports the date display film so that it can slide on the outer surface of the body.

2. In paragraph 1, A perpetual calendar further comprising at least one elastic body disposed inside the body and having elasticity to provide pressure that pushes the body outward.

3. In paragraph 2, The above elastic body is a perpetual calendar made of a spring or foam.

4. In paragraph 1, A date display area is divided on the front of the above body, in which a calendar corresponding to a certain month is displayed, The above date display film has an opaque first color, and the date display characters are formed to have a hole shape or a transparent color, A first table board having an opaque color different from the first color and attached to the front of the body to correspond to the date display area, and disposed between the date display film and the body, A perpetual calendar in which the color of the first table board is exposed to the date display characters located in the date display area as the date display film slides.

5. In paragraph 4, The above date display film has the above date display characters formed in six rows, In the first row, date display characters from 1 to 7 are arranged sequentially along the direction of movement of the date display film. In the second row, date display characters from 2 to 14 are arranged in order along the sliding direction, In the third row above, date display characters from 9 to 21 are arranged in order along the sliding direction, In the fourth row above, date display characters from 16 to 28 are arranged in order along the sliding direction, In the above 5th row, the date display characters from 23 to 31 are arranged in order along the sliding direction. In the above 6th row, date display characters from 30 to 31 are arranged in order along the sliding direction, The date display character 1 of the first row, the date display character 8 of the second row, the date display character 15 of the third row, the date display character 22 of the fourth row, and the date display character 29 of the fifth row are arranged in the same column, The date display character 2 of the second row, the date display character 9 of the third row, the date display character 16 of the fourth row, the date display character 23 of the fifth row, and the date display character 30 of the sixth row are arranged in the same column, A perpetual calendar having a size in which the above date display area displays six rows and seven columns of the above date display characters on the above date display film.

6. In paragraph 5, On the front of the above body, a month display area is divided above the date display area, On the front surface of the body, a month display film is positioned on top of the date display film and is slidable on the outer surface of the body, and 12 month display characters indicating the month are formed to be listed in a row direction; and Further comprising a second table board attached to the front of the body to correspond to the month display area and positioned between the month display film and the body; The size of the above month display area and the second table board is such that one of the month display characters is displayed, The above month display film has an opaque second color, and the month display characters are formed to have a hole shape or a transparent color, A perpetual calendar in which the second table board has an opaque color different from the second color, and the color of the second table board is exposed to the month display characters located in the month display area as the month display film slides.

7. In paragraph 5, Further comprising a front cover disposed at the outermost portion and including at least one opening through which the date display area is exposed, A perpetual calendar wherein the front cover covers a portion of the date display film that is not located in the date display area.

8. In paragraph 1, A perpetual calendar further comprising a handle connected to the above date display film.

9. In paragraph 1, The above body, A square plate unit having an area where the above date display characters are displayed; first and second round units each disposed on both sides of the square plate and connected to both ends of the square plate, each end having a round shape; A perpetual calendar further comprising a plurality of side elastic bodies each arranged in spaces formed between the first and second round units and both sides of the square plate to provide pressure to push the first and second round units outward.

10. In paragraph 1, A date display area is divided on the front of the above body, in which a calendar corresponding to a certain month is displayed, Further comprising at least one cover that covers at least one specific date display character among the date display characters exposed in the date display area to block exposure of the specific date display character, A perpetual calendar, wherein the cover comprises a front cover disposed on the date display film and a back cover disposed in the internal space of the body and capable of being joined to the front cover by force.

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