3D pop-up card

Abstract

According to the 3D pop-up card disclosed by the utility model, the foldable double-layer base card is adopted, the base card is folded along the creases and can be reversibly switched from a folded closed state to an unfolded open state, and the foldable image is fixed on the inner side of the base card. Grooves are formed in the positions, on the two sides of the crease, of the inner layer of the base card in the closed state respectively, the grooves in the two sides are parallel to the crease, the base card and the foldable image are connected through an L-shaped connecting piece, a first arm A of the L-shaped connecting piece is connected with the grooves, and a second arm B of the L-shaped connecting piece is connected with the foldable image. A second arm B of the L-shaped connecting piece is installed on the foldable image, so that the foldable image is smoothly pulled open and unfolded in a diagonal line mode in the opening process of the 3D pop-up card, and by means of the mode that the edges of the inner layer and the outer layer of the base card are bonded, a lamp, an acoustics element and other elements can be contained in the base card. And the 3D card has more entertainment playability.

Description

Technical Field

[0001] The utility model belongs to the technical field of cards with reversible switching between open and closed states, and particularly relates to a 3D pop-up card, which has a foldable base card with an inner side and an outer side. The base card can be folded along a crease and can be reversibly switched from a folded closed state to an unfolded open state. A foldable figure is fixed on the inner side of the base card, and the foldable figure unfolds into a three-dimensional structure by itself during the switching process of the base card to the open state. Background Art

[0002] 3D pop-up cards (hereinafter simply referred to as 3D cards) in various embodiments have long been known, and basically include: a card that is usually simply folded as a base (hereinafter simply referred to as a base card); and a figure arranged in the base card. The main function of such a 3D card is that when the folded card is opened, the initially substantially two-dimensionally compressed figure rises and / or unfolds in a three-dimensional manner from the card plane.

[0003] Generally, by unfolding a total of 180° two stackable base card parts into a plane, the corresponding 3D card can be opened from the closed state. The basic principle is that the compressed figure is fastened to the base card in such a way that by opening the folded base card, a tensile stress is applied to the figure, and this tensile stress switches the figure from a compressed configuration to a three-dimensional or extended configuration.

[0004] Therefore, the structure of the corresponding 3D card needs to form a figure on the one hand that can be switched from a compressed two-dimensional state to a three-dimensional state, and on the other hand, it needs to be able to fasten the figure inside the base card. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a structure that ensures the figure is fixed to the base card in a simple manner and enables the figure to unfold smoothly when the 3D card is opened.

[0006] The present utility model realizes the above object through the following technical solutions: A 3D pop-up card has a foldable base card, the base card having an inner side and an outer side, wherein the base card can be folded along a crease and can be reversibly switched from a folded closed state to an unfolded open state, wherein a foldable image is fixed to the inner side of the base card, and the foldable image self-unfolds into a three-dimensional structure during the switching of the base card to the open state. The base card is two-layered, and the inner layer in the closed state has at least one groove on each side of the crease. The base card and the foldable image are connected to each other by an L-shaped connecting member, and the first arm A of the L-shaped connecting member engages with the groove, and the second arm B of the L-shaped connecting member is mounted on the foldable image. Grooves are provided in the inner layer for fixing the foldable image by means of the L-shaped connecting members provided therefor. At the same time, these grooves are not visible on the outer side of the 3D pop-up card, so that the appearance of the card is not affected. By providing an L-shaped connecting member for each groove, the foldable image is fixed with a simple structure. One of the two arms of the L-shaped shape is correspondingly engaged in the groove, and the other arm is connected to the foldable image. In this way, a connection is established as a whole between the base card and the foldable image, and this connection ensures that the movement during the unfolding and folding of the base card is synchronously transmitted to the foldable image. The second arm of the L-shaped connecting member can be adhesively bonded to the inner or outer side of a part of the foldable image.

[0007] Preferably, the grooves are arranged offset from each other on both sides of the crease, this offset being related to a line parallel to the long side of the base card, wherein the side extending orthogonally to the crease is regarded as the long side of the base card. In other words, the grooves are located on different parallel lines parallel to the long side. When unfolded, this offset causes forces to be applied to different sections of the foldable image, for example to sections that are diagonally opposite each other, so that the foldable image can be pulled apart and unfolded diagonally.

[0008] Preferably, a single groove is arranged on each side of the crease, and these two grooves are preferably arranged offset from each other such that when the base card is unfolded and opened, when viewed in a top view, these two grooves are arranged diagonally relative to each other, so that the foldable image is realized to be pulled apart and unfolded diagonally during the opening of the 3D pop-up card.

[0009] Preferably, the grooves extend substantially parallel to the crease. One arm of the L-shaped connecting member can be correspondingly inserted into the groove and bent if necessary, and the surface of the other arm of the L-shaped connecting member is connected or adhesively bonded to a certain section of the foldable image. In addition, the connection between the L-shaped connecting member and the groove can also be strengthened by adhesion or other fixing measures.

[0010] Preferably, the crease is arranged in the center of the base card, that is, the base card and the 3D pop-up card are folded in half along the center line. Of course, in another embodiment, it is conceivable that the base card and the 3D pop-up card are not folded in the center.

[0011] Preferably, the inner layer of the base card in the closed state is folded onto the outer layer of the base card in the closed state on one or both sides of the crease, and this situation may occur on one or both sides of the crease. The base card can be composed of a long piece of paper or cardboard, and it is folded parallel to the center line of the crease on both sides of the crease, or the inner layer is set as an independent part fixed on the outer layer.

[0012] Preferably, the inner layer of the base card in the closed state and the outer layer of the base card in the closed state are adhered to each other. In principle, other connection means can also be conceived; adhesion to each other is the most preferred solution. This adhesion to each other does not have to be carried out on the entire surface; in most cases, adhesion in the edge area of the corresponding layers can achieve the effect.

[0013] Preferably, the foldable figure includes horizontal and vertical elements, which are inserted into each other and are arranged perpendicular to each other in the fully open state of the 3D pop-up card. On the other hand, when the card is closed, the horizontal and vertical elements are placed flat on top of each other. Here, the naming of "horizontal" and "vertical" has nothing to do with the orientation of the base card; in particular, the three-dimensional figure can also be fixed to the base card obliquely. According to the present invention, the number of corresponding elements can vary. Whether the number of horizontal and vertical elements is equal and whether the number of elements is even or odd is also not important.

[0014] Preferably, the 3D pop-up card includes a lamp and / or an acoustic element, and a switch for activating the lamp and / or the acoustic element.

[0015] Preferably, the lamp and / or the acoustic element is arranged between the inner layer and the outer layer of the base card; the inner layer and the outer layer of the base card are only adhered together in the edge area, leaving a gap very suitable for receiving additional elements. Therefore, the lamp and / or the acoustic element is basically invisible from the outside, but still can achieve their purpose. However, in the case of a lamp element, it should be noted that in order to achieve the desired effect, the lamp and / or the acoustic element needs to be visible from the outside, that is, the lamp and / or the acoustic element is separately arranged outside the inner layer of the base card and is fixedly connected to the inner layer of the base card and / or the horizontal and vertical elements.

[0016] Preferably, the lamp and / or the acoustic element are provided separately and fixedly connected to the inner layer of the base card and / or the horizontal and vertical elements.

[0017] Preferably, in order to actuate the lamp and / or the acoustic element, the 3D pop-up card may have conventional electronic components such as a power source, a switch, an integrated circuit for controlling the electronic components, and a plurality of lamp elements and / or acoustic elements. Except for the lamp elements and the acoustic elements, the electronic components are arranged on a circuit board. The power source is usually a battery, and the switch may also exist in the form of a sensor, such as in the form of a photodiode.

[0018] Preferably, the 3D pop-up card has a foldable base card with an inner side and an outer side, wherein the base card can be folded along a crease and can be reversibly switched from a folded closed state to an unfolded open state, wherein a foldable figure is fixed to the inner side of the base card, and the foldable figure unfolds itself into a three-dimensional structure during the switching of the base card to the open state. The base card is two-layered and includes an inner layer. The base card and the foldable figure are connected to each other by an L-shaped connecting member, and the first arm A of the L-shaped connecting member is fixedly connected to the inner layer, and the second arm B of the L-shaped connecting member is mounted on the foldable figure.

[0019] If the 3D pop-up card forms a plane after being unfolded, that is, the two parts or halves of the card are unfolded at a total angle of 0° and are adjacent in a plane, the 3D pop-up card can be regarded as being open. Conversely, if the two parts or halves of the card are located on top of each other and their inner sides are arranged one above the other, the card can be regarded as being closed.

[0020] Compared with the prior art, the beneficial effects obtained by the present utility model are:

[0021] A 3D pop-up card disclosed by the present utility model adopts a foldable double-layer base card. The base card has an inner side and an outer side. The base card can be folded along a crease and can be reversibly switched from a folded closed state to an unfolded open state. A foldable figure is fixed on the inner side of the base card. The foldable figure self-unfolds into a three-dimensional structure during the switching process of the base card to the open state. By respectively arranging a groove on both sides of the crease on the inner layer of the base card in the closed state, the two side grooves are parallel to the crease. The base card and the foldable figure are connected to each other through an L-shaped connecting piece. The first arm A of the L-shaped connecting piece engages with the groove, and the second arm B of the L-shaped connecting piece is installed on the foldable figure, so that the foldable figure smoothly unfolds diagonally and expands during the opening process of the 3D pop-up card. Through the way of bonding the edges of the inner and outer layers of the base card, elements such as lamps and acoustics can be accommodated inside the base card, making the 3D card have more entertainment playability. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. However, the present utility model is not limited to the shown implementation variants. In particular, within the technically feasible scope, the present utility model includes any combination of the technical features listed in the claims or described in the specification as related to the present utility model.

[0023] Figure 1 Schematic view from an oblique upper direction showing the 3D pop-up card of the present utility model.

[0024] Figure 2 Showing the base card of the 3D pop-up card of the present utility model before folding.

[0025] Figure 3 Showing the base card of the 3D pop-up card of the present utility model after folding.

[0026] Figure 4 Showing the L-shaped connecting piece composed of two arms A and B of the 3D pop-up card of the present utility model.

[0027] Figure 5 Showing another schematic view of the L-shaped connecting piece of the 3D pop-up card of the present utility model.

[0028] Figure 6 Showing the base card of the 3D pop-up card of the present utility model and the L-shaped connecting piece inserted into the groove.

[0029] Figure 7 Showing the base card 1 of the 3D pop-up card of the present utility model having an opening 13 for accommodating a lamp element. Detailed implementation mode

[0030] The following further illustrates the present utility model in conjunction with the accompanying drawings of the specification and specific embodiments. However, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts belong to the scope of protection of the present utility model.

[0031] Please refer to the attached Figure 1 to the attached Figure 7 A 3D pop-up card, which consists of a base card 1 and a foldable image 3. The foldable image 3 is composed of a plurality of horizontal elements 8 and a plurality of vertical elements 9. These elements are inserted into each other at the slots provided therefor and form a 90° angle when the card is unfolded. The foldable image 3 is fixed to the inner side 11 of the base card 1.

[0032] The foldable image 3 is connected to the base card 1 through an L-shaped connecting member 7. The base card 1 can be unfolded along the crease 2, so that when the base card 1 is unfolded, the foldable image 3 automatically unfolds into a three-dimensional structure.

[0033] The base card 1 consists of two inner layers 5 and two outer layers 6. The inner layer 5 is folded onto the outer layer 6 along the arrow 10. In addition, the base card 1 is flipped along the crease 2. In another embodiment, the inner layer 5 can also be bonded to the outer layer 6, where the inner layer 5 is provided as a separate component. In addition, a slot 4 for receiving the L-shaped connecting member 7 is provided in the inner layer 5. In the unfolded state of the 3D pop-up card, the inner layer 5 abuts against the outer layer 6 that is no longer visible at this time, and usually the inner layer 5 and the outer layer 6 are bonded at least in the edge region.

[0034] The first arm A of the L-shaped connecting member 7 is arranged to be inserted into the slot 4 in the base card 1, and the second arm B of the L-shaped connecting member 7 is used to connect to the foldable image 3.

[0035] According to the degree of unfolding or closing of the base card 1, the angle between the two arms A and B of the L-shaped connecting member 7 also changes accordingly. The arms A and B are connected to each other in such a way that when the base card 1 is folded, for example, sufficient flexibility is provided by means of the crease buffer block between the arms A and B.

[0036] The first arm A of the L-shaped connecting member 7 is inserted into the slot 4, and the second arm B of the L-shaped connecting member 7 is used to be fastened to the foldable image 3, preferably bonded together.

[0037] Various electronic components are integrated into the base card 1, more precisely, between the inner layer 5 and the outer layer 6. Here, the electronic components refer to the acoustic element 14 and the circuit board 15, wherein the integrated circuit, the battery and the LED are arranged on the circuit board 15. These electronic components are controlled by a switch (not shown here), and when the base card 1 is unfolded, the switch activates the integrated circuit and plays a melody.

[0038] The above examples are only specific embodiments of the present invention. Obviously, the present invention is not limited to the above examples, and there are many similar modifications. All modifications that can be directly derived or associated with the contents disclosed by ordinary technicians in this field should be considered as the scope of protection of the present invention.

Claims

1. A 3D pop-up card, characterized in that: The 3D pop-up card has a foldable base card (1), wherein the base card (1) has an inner side (11) and an outer side, wherein the base card (1) can be folded along a fold (2) and can be reversibly switched from a folded closed state to an unfolded open state, wherein a foldable image (3) is fixed to the inner side (11) of the base card (1), and the foldable image (3) automatically unfolds into a three-dimensional structure during the switching process of the base card (1) to the open state, the base card (1) is two-layered, the inner layer (5) in the closed state has at least one groove (4) on both sides of the fold (2), the base card (1) and the foldable image (3) are connected to each other by an L-shaped connector (7), and the first arm (A) of the L-shaped connector (7) is engaged with the groove (4), and the second arm (B) of the L-shaped connector (7) is installed on the foldable image (3).

2. The 3D pop-up card according to claim 1, characterized in that: The grooves (4) are arranged offset from each other on both sides of the fold (2).

3. The 3D pop-up card according to claim 1 or 2, characterized in that: A single groove (4) is arranged on each side of the fold (2).

4. The 3D pop-up card according to claim 1, characterized in that: The fold (2) is arranged in the center of the base card (1).

5. The 3D pop-up card according to claim 1, characterized in that: The inner layer (5) of the base card (1) in the closed state is folded onto the outer layer (6) of the base card (1) in the closed state on one or both sides of the fold (2).

6. The 3D pop-up card according to claim 1, characterized in that: The inner layer (5) of the base card (1) in the closed state and the outer layer (6) of the base card (1) in the closed state are bonded to each other.

7. The 3D pop-up card according to claim 1, characterized in that: The foldable image (3) comprises horizontal and vertical elements (8, 9), wherein the horizontal and vertical elements (8, 9) are plugged into each other and are arranged perpendicular to each other in the fully opened state of the 3D pop-up card.

8. The 3D pop-up card according to claim 1, characterized in that: The 3D pop-up card comprises a light and / or acoustic element (14), and a switch for activating the light and / or acoustic element (14).

9. The 3D pop-up card according to claim 8, characterized in that: The light and / or acoustic element (14) is arranged between the inner layer (5) and the outer layer (6) of the base card (1), or the light and / or acoustic element (14) is separately arranged outside the inner layer of the base card (1), and is fixedly connected to the inner layer of the base card (1) and / or the horizontal and vertical elements (8, 9).

10. A 3D pop-up card, characterized in that: The 3D pop-up card has a foldable base card (1), wherein the base card (1) has an inner side (11) and an outer side, wherein the base card (1) can be folded along a fold (2) and can be reversibly switched from a folded closed state to an unfolded open state, wherein a foldable image (3) is fixed on the inner side (11) of the base card (1), and the foldable image (3) automatically unfolds into a three-dimensional structure during the switching process of the base card (1) to the open state, wherein the base card (1) is two-layered, wherein the base card (1) includes an inner layer (5), wherein the base card (1) and the foldable image (3) are connected to each other via an L-shaped connector (7), wherein a first arm (A) of the L-shaped connector (7) is fixedly connected to the inner layer (5), and a second arm (B) of the L-shaped connector (7) is mounted on the foldable image (3).

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