Card case

The card case with elastic connecting devices and a blocking mechanism addresses the issue of limited space and card loss by allowing expansion and contraction to store multiple cards securely.

JP2026506938APending Publication Date: 2026-02-27SHENZHEN JIANGDA HARDWARE PROD CO LTD
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Patent Information

Application Number
JP2025546880
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Priority Date
2023-12-26
Filing Date
2024-02-02
Publication Date
2026-02-27

AI Technical Summary

Technical Problem

Existing card cases are inconvenient for storing multiple cards due to limited space and prone to cards falling out, especially when uneven surfaces are encountered.

Method used

A card case with a first and second clamping plate connected by elastic connecting devices allowing vertical displacement, expanding and contracting to accommodate various card sizes, and featuring a blocking device to prevent cards from falling out.

Benefits of technology

The card case provides a simple, portable, and durable solution that securely stores multiple cards of different sizes without falling, ensuring easy insertion and removal.

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Abstract

The present invention provides a card case including a card case main body. The card case main body includes a first card clamping plate and a second card clamping plate, and at least one connecting device is provided between the first card clamping plate and the second card clamping plate, each connecting device including two connecting members directly or indirectly hingedly connected, which connect the first card clamping plate and the second card clamping plate to each other by collapsing and unfolding the connecting members, thereby forming an internal space that is freely expandable and capable of storing multiple cards. The card case main body further includes an elastic member provided on the card case main body, which provides an elastic restoring force for the first card clamping plate and the second card clamping plate to return to their initial positions from their expanded positions. The card case of the present invention has a simple structure, a small occupying space, and is easy to operate. The connecting device generates elastic displacement between the first card clamping plate and the second card clamping plate, allowing the internal space to freely expand and contract, thereby forming a space for storing cards.
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Description

[Technical Field]

[0001] The present invention relates to the technical field of card cases, and more particularly to a card case that is simple in structure and easy to carry. [Background technology]

[0002] As metal card cases have become more popular in the market over the years, users' requirements for product details have become increasingly higher. With the popularity of online cash payments, people carry less and less cash, and the ability to carry large amounts of cash is no longer necessary. Therefore, metal card cases are required to not only store cards, but also to store a small number of bills and receipts. Wallets and card cases are also becoming more compact and portable. In the prior art, metal card cases are used to store cards such as bank cards, business cards, and bills.

[0003] In modern life, people more or less need to use a variety of cards, including bank cards, supermarket cards, shopping cards, and membership cards. If these cards are not stored properly, problems often arise. Card cases emerged to help manage these numerous cards and are a product of the modern economy. There are generally two types of card cases: a booklet-style case with flip-through pages and a rotating case. Leather cases are the most common material, and, like a wallet, are convenient for carrying.

[0004] If there are too many cards in the card case, it becomes inconvenient to insert and remove cards. Also, when carrying the card case, cards are likely to fall out of the card case due to unevenness of the road surface, etc., causing unnecessary trouble. Summary of the Invention

[0005] The object of the present invention is to provide a new, simple and portable card case that solves the above technical problems. The connecting device generates elastic displacement between the first and second card case plates, allowing the internal space to expand and contract freely, creating space for storing cards, securely holding cards, and fulfilling the function of storing cards of different sizes.

[0006] The technical problem of the present invention is achieved by the following technical solutions: A card case including a card case body, The card case body includes a first card clamping plate and a second card clamping plate, and at least one connecting device is provided between the first card clamping plate and the second card clamping plate, and the first and second card clamping plates are connected by the at least one connecting device, and each connecting device includes two connecting members that are hingedly connected directly or indirectly, and when the connecting members are gathered and unfolded, the first card clamping plate and the second card clamping plate are displaced relative to each other, thereby forming an internal space that can expand and contract freely and can store a plurality of cards, and the card case body further includes an elastic member provided on the card case body, and the elastic member provides an elastic recovery force that allows the first card clamping plate and the second card clamping plate to return to their initial positions from the unfolded position.

[0007] Preferably, two connection devices are provided on each of the opposing sides of the first card clamping plate and the second card clamping plate, and the two connection members of each connection device are hingedly connected by at least one hinge portion.

[0008] Preferably, the elastic member is provided between the two hinge portions, and the elastic member is a spring, an elastic strip or an elastic cord.

[0009] Preferably, the elastic member is positioned between the first card holding plate and the second card holding plate.

[0010] Preferably, the elastic member is an elastic band or an elastic strip.

[0011] Preferably, the connection device further includes another elastic member attached to the connection member in the form of a sleeve, one end of the another elastic member being provided within the mounting groove of the first card clamping plate or the second card clamping plate and the other end being in contact with the inside of the mounting groove, and the another elastic member providing the connection member with an elastic recovery force that moves it horizontally outward.

[0012] Preferably, the first card holding plate and the second card holding plate are provided with a blocking device for preventing the card from falling out.

[0013] Preferably, the blocking device includes two rotatably connected connecting members, one end of each connecting member being attached to the first card clamping plate and the second card clamping plate, respectively, and the other end of each connecting member being hingedly connected by at least one hinge portion.

[0014] The technical problem of the present invention is achieved by the following alternative technical solutions. A card case including a card case body, The card case main body includes a first card clamping plate and a second card clamping plate facing the first card clamping plate, a connection device is provided between the first card clamping plate and the second card clamping plate, which are connected to each other by the connection device, and the connection device causes relative vertical displacement between the first card clamping plate and the second card clamping plate, thereby forming an internal space that is freely expandable and can store at least one card, and the connection device includes two connection members, which are provided on the first card clamping plate and the second card clamping plate, respectively, and the two connection members are directly hinged or indirectly hinged by at least one hinge portion.

[0015] Preferably, the card case body further includes an elastic member, which provides an elastic restoring force for restoring the first card holding plate and the second card holding plate to their initial positions.

[0016] The beneficial effects of the present invention are as follows: (1) Simple structure, low cost, small space required, easy operation, and excellent durability. (2) By using the connection device to generate elastic displacement between the first card case plate and the second card case plate, the internal space can expand and contract freely, forming a pocket that can store cards and has a recovering clamping force, thereby achieving the function of storing cards of different sizes and preventing them from falling out. [Brief explanation of the drawings]

[0017] [Figure 1] 1 is a structural schematic diagram of a card case according to Example 1 of the present invention. [Figure 2] 4 is another structural schematic diagram of the card case according to the first embodiment of the present invention. FIG. [Figure 3] FIG. 1 is an exploded view of a card case according to a first embodiment of the present invention. [Figure 4] 3 is a structural schematic diagram of four connecting members of the card case according to the first embodiment of the present invention. FIG. [Figure 5] 1 is a schematic diagram showing a partial structure of a card case according to a first embodiment of the present invention before a small number of cards are inserted into the card case. [Figure 6] 3A to 3C are schematic diagrams illustrating the structure of the card case according to the first embodiment of the present invention in the process of inserting a small number of cards into the card case. [Figure 7] 1 is a schematic diagram showing the structure of the card case according to the first embodiment of the present invention after a small number of cards have been inserted into the card case. [Figure 8] 1 is a schematic diagram showing a partial structure of the card case according to Example 1 of the present invention after a small number of slightly wide cards have been inserted into the card case. FIG. [Figure 9] 1 is a schematic diagram showing the structure of a card case according to a first embodiment of the present invention before the maximum number of cards are inserted into the card case. [Figure 10] 1A to 1C are schematic diagrams illustrating the structure of the card case according to the first embodiment of the present invention in the process of inserting the maximum number of cards into the card case. [Figure 11]1 is a schematic diagram showing the structure of a card case according to Example 1 of the present invention after the maximum number of cards have been inserted into the card case. FIG. [Figure 12] FIG. 10 is a structural schematic diagram of a card case according to a second embodiment of the present invention. [Figure 13] 10 is another structural schematic diagram of a card case according to Example 2 of the present invention. FIG. [Figure 14] 10A and 10B are schematic diagrams illustrating the structure of a card case according to a second embodiment of the present invention in the process of inserting some cards into the card case. [Figure 15] 10A and 10B are schematic diagrams showing another structure in the process of inserting some cards into the card case according to the second embodiment of the present invention. [Figure 16] FIG. 10 is a structural schematic diagram of a card case according to a third embodiment of the present invention. [Figure 17] FIG. 10 is another structural schematic diagram of the card case according to the third embodiment of the present invention. [Figure 18] 10A and 10B are schematic diagrams illustrating the structure of a card case according to a third embodiment of the present invention in the process of inserting some cards into the card case. [Figure 19] 10A and 10B are schematic diagrams showing another structure in the process of inserting some cards into the card case according to the third embodiment of the present invention. [Figure 20] FIG. 10 is a structural schematic diagram of a card case according to Example 4 of the present invention. [Figure 21] 10 is another structural schematic diagram of a card case according to Example 4 of the present invention. FIG. [Figure 22] 10A and 10B are schematic diagrams illustrating the structure of a card case according to a fourth embodiment of the present invention in the process of inserting some cards into the card case. [Figure 23] 10A and 10B are schematic diagrams showing another structure in the process of inserting some cards into the card case according to the fourth embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0018] The present invention will be further described below with reference to the drawings and specific embodiments. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art of this application, and the terms used herein are only for describing particular embodiments and are not intended to limit this application. The terms "comprise" and "have," as well as any variations thereof, in the specification and claims of this application and the accompanying drawings are intended to cover non-exclusive inclusions. The terms "first," "second," etc., in the specification and claims of this application or the above drawings are intended to distinguish different objects and not to describe a particular order.

[0019] The term "embodiment" as used herein means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the present application. The appearance of the term in each location in this specification does not necessarily refer to the same embodiment, nor does it refer to an independent or alternative embodiment that is mutually exclusive with other embodiments. Those skilled in the art can explicitly and implicitly understand that the embodiments described herein may be combined with other embodiments.

[0020] 1 to 3 show a card case provided in a first embodiment of the present invention. This card case 100 allows for easy carrying of multiple cards 200 and includes a card case body 10 and a fastening clip 20 attached to the card case body 10. The fastening clip 20 is used to fasten the card case body 10 to a belt or suspenders for easy portability or to carry banknotes. The card case body 10 includes a first card clamp plate 11 and a second card clamp plate 12 that is symmetrical to the first card clamp plate 11. The first card clamp plate 11 and the second card clamp plate 12 are connected by four connecting devices 13 that have the same structure. In the initial state before use, elastic pressure is generated between the first card clamp plate 11 and the second card clamp plate 12, and the first card clamp plate 11 and the second card clamp plate 12 are displaced vertically by the action of an external tensile force. The internal space of the first card clamp plate 11 and the second card clamp plate 12 can be freely expanded to form an adjustable pocket 15 (also called a space for storing multiple cards) that can store a card 200. When the external pulling force is released, the first card clamp plate 11 and the second card clamp plate 12 return to their initial positions due to the action of elastic recovery force, i.e., the first card clamp plate 11 and the second card clamp plate 12 are pressed against each other.

[0021] The connecting device 13 causes vertical elastic displacement between the first card clamp plate 11 and the second card clamp plate 12, allowing the internal space to expand and contract freely, forming a pocket 15 capable of accommodating multiple cards 200, thereby fulfilling the function of accommodating cards of different sizes and numbers. Specifically, in this embodiment, two connecting devices 13 are provided on each of the opposing sides between the first card clamp plate 11 and the second card clamp plate 12. Note that only one connecting device 13 or three or more connecting devices 13 may be provided on each side, and this can be determined according to needs and actual circumstances. For aesthetic reasons, the outermost ends of the connecting devices 13 are housed in recessed spaces and are flush with the outermost edges of the first card clamp plate 11 and the second card clamp plate 12.

[0022] Furthermore, a blocking device 17 for preventing the cards 200 from sliding out is provided between the first card clamp plate 11 and the second card clamp plate 12 to position the cards 200 and prevent them from falling out. This blocking device 17 includes two rotatably connected connecting members 171. One end of each connecting member 171 is attached to the mounting groove 112b of the first card clamp plate 11 and the mounting groove of the second card clamp plate 12, respectively (the first card clamp plate 11 and the second card clamp plate 12 are symmetrical in structure, so are not shown in the figure). The other end of each connecting member 171 is connected via a rotating shaft. The blocking device 17 is not limited to the above blocking method. The blocking device 17 may be an elastic member housed in a groove on the first card clamp plate 11 and the second card clamp plate 12, or an elastic member connecting the first card clamp plate 11 and the second card clamp plate 12. The elastic member may be any one of a return spring, an elastomer, an elastic band, a rubber cord, a rubber band, an elastic sheet, a bellows, or a spring tube. Any structure capable of performing the blocking function is included in the concept of the present invention.

[0023] 3, the first card clamping plate 11 includes a base plate 112 and an attachment plate 115 fixed to the base plate 112 by a plurality of fasteners 113 (e.g., screws). The second card clamping plate 12 includes a base plate 122 and an attachment plate 125 fixed to the base plate 122 by a plurality of fasteners 113 (e.g., screws). The outer or inner surfaces of the first card clamping plate 11 and the second card clamping plate 12 are each provided with four attachment grooves 112a for accommodating the corresponding connection devices 13.

[0024] As shown in FIG. 4 , each connection device 13 includes a first elastic member 130 and two connecting members 131 rotatably connected via a shaft. The first elastic member 130 is attached to each connecting member 131 in a sleeve-like manner. The free end of the first elastic member 130 is fitted into the mounting groove 112a. The other end of the first elastic member 130 is movably or fixedly connected to the connecting member 131. In this embodiment, the first elastic member 130 is a torsion spring. Furthermore, to accommodate cards 200 whose width is slightly larger than the width of the first card clamp plate 11 and the second card clamp plate 12, each connecting member 131 is further attached to the connecting member 131 in a sleeve-like manner. The second elastic member 135 is also housed in the mounting groove 112a, with one end fixed to the connecting member 131 and the other end abutting the inside of the mounting groove 112a. When a slightly wider card 200 is inserted into pocket 15, both ends of card 200 come into contact with connecting members 131, which move horizontally outward (in the direction of the arrow in FIG. 8) to provide the space necessary to insert the slightly larger card. When a slightly larger card is removed from pocket 15, the elastic recovery force of second elastic members 135 causes each connecting member 131 to move horizontally from the outside to its initial position (FIG. 8). Each connecting member 131 receives the force of second elastic members 135 at its initial position.

[0025] As shown in FIGS. 5 to 7 , in the initial position, the first card clamping plate 11 and the second card clamping plate 12 of the card case 100 are pressed against each other by the elastic force of a first elastic member 130 (e.g., a torsion spring). That is, a relatively small opposing force exists between the first card clamping plate 11 and the second card clamping plate 12. When one or more cards 200 are inserted into the card case 100, the first card clamping plate 11 and the second card clamping plate 12 are displaced relative to each other in the vertical direction under the action of an external tensile force (in the direction of the arrows in FIG. 5 ). At the same time, the two connecting members 131 of each connecting device 13 rotate about their axes to open, and the two connecting members 171 of the blocking device 17 also rotate about their axes to open, thereby preventing the card 200 from being removed. A storage space (also called a pocket 15) for storing multiple cards 200 is formed between the first card clamping plate 11 and the second card clamping plate 12. After storing these cards 200, when the external tensile force is released, the first card clamping plate 11 and the second card clamping plate 12 of the card case 100 press the cards 200 due to the elastic force of the first elastic member 130 (for example, a torsion spring). In this case, a relatively large opposing acting force (or clamping force) exists between the first card clamping plate 11 and the second card clamping plate 12. In this way, the cards 200 are securely clamped, preventing the cards 200 from falling out.

[0026] 9 to 11, FIG. 9 is a structural schematic diagram of the card case 100 before the maximum number of cards 200 is inserted. In FIG. 9, the distance between the first card clamping plate 11 and the second card clamping plate 12 is at its maximum. That is, in this state, the opening angle of the two connecting members 131 of the connecting device 13 is at its maximum, and the opening angle of the two connecting members 171 of the blocking device 17 is also at its maximum. In addition, the elastic recovery force of the first elastic member 130 (e.g., a torsion spring) of the first card clamping plate 11 and the second card clamping plate 12 of the card case 100 is also at its maximum. That is, the opposing acting force of the first card clamping plate 11 and the second card clamping plate 12 is also at its maximum (maximum clamping force). In this way, the maximum number of cards 200 are securely clamped between the first card clamping plate 11 and the second card clamping plate 12, making them less likely to fall out.

[0027] In the present invention, the first elastic member 130 drives the connecting member 131 by the connecting device 13, elastically displacing the first card clamping plate 11 and the second card clamping plate 12 in the vertical direction, thereby clamping the card stored in the internal space between the first card clamping plate 11 and the second card clamping plate, making it easy and convenient to insert and remove the card. The provision of the blocking device 17 prevents the card 200 from falling out of the pocket 15, which is advantageous in preventing the card case from falling out, and the structure is simple and easy to use.

[0028] 12 to 15, FIGS. 12 and 13 are structural schematic diagrams of a card case according to a second embodiment of the present invention. FIGS. 14 and 15 are structural schematic diagrams showing the process of inserting multiple cards into the card case according to the second embodiment of the present invention. The structure of the card case according to the second embodiment is basically the same as the structure of the card case according to the first embodiment, except that the two connecting members 131 of the connecting device 13 are not directly hinge-connected but are indirectly connected via hinge portions 133b, and the two connecting members 171 of the blocking device 17 are not directly hinge-connected but are indirectly connected via hinge portions 173b. The number of hinge portions 133b may be two, three, etc. The number of hinge portions 173b may be two, three, etc. The number of hinge portions 173b may be zero. In other words, the two connecting members 171 may be directly hinge-connected but not indirectly hinge-connected.

[0029] 16 to 19, FIGS. 16 and 17 are structural schematic diagrams of a card case according to Example 3 of the present invention. FIGS. 18 and 19 are structural schematic diagrams showing the process of inserting multiple cards into the card case according to Example 3 of the present invention. The structure of the card case according to Example 3 is basically the same as that of Example 2, except that elastic bands 130c (also referred to as elastic members such as elastic strips or elastic cords) are provided at both ends between the first card clamp plate 11 and the second card clamp plate 12, instead of the first elastic members 130 attached in a sleeve-like manner to the respective connecting members 131. The elastic recovery force of the two opposing elastic bands 130c causes the first card clamp plate 11 and the second card clamp plate 12 to return to their initial positions from the deployed positions. Note that the installation of the elastic bands 130c can also be applied to the card case according to Example 1, and the first elastic members 130 attached in a sleeve-like manner to the respective connecting members 131 may or may not be provided. From the viewpoint of cost reduction, the first elastic members 130 attached to the respective connecting members 131 in a sleeve-like manner are usually not provided.

[0030] 20 to 23, FIGS. 20 and 21 are structural schematic diagrams of a card case according to Example 4 of the present invention. FIGS. 22 and 23 are structural schematic diagrams showing the process of inserting multiple cards into the card case according to Example 4 of the present invention. The structure of the card case according to Example 4 is basically the same as that of Example 2, except that springs 130d (also referred to as elastic members such as elastic strips, elastic bands, or elastic cords) are connected between two hinge portions 133b at both ends of the first card clamp plate 11 and the second card clamp plate 12, instead of the first elastic members 130 attached in a sleeve-like manner to the respective connecting members 131. The elastic restoring force of the springs 130d causes the first card clamp plate 11 and the second card clamp plate 12 to return to their initial positions from the deployed positions. Note that the installation of the springs 130d can also be applied to the card case according to Example 1, and the first elastic members 130 attached in a sleeve-like manner to the respective connecting members 131 may or may not be provided. From the viewpoint of cost reduction, the first elastic members 130 attached to the respective connecting members 131 in a sleeve-like manner are usually not provided.

[0031] If the two connecting members 131 are directly hinged or indirectly hinged via at least one hinge portion and there is sufficient friction between them, the elastic member for restoring the first card clamp plate 11 and the second card clamp plate 12 from the expanded position to their initial positions can be omitted. Due to the presence of friction or resistance, the first card clamp plate 11 and the second card clamp plate 12 can be opened by simply pulling the first card clamp plate 11 and the second card clamp plate 12 with a small amount of force. The first card clamp plate 11 and the second card clamp plate 12 can clamp multiple cards 200 by simply pressing the first card clamp plate 11 and the second card clamp plate 12 with a small amount of force, and it is also possible to ensure that the cards 200 will not fall out.

[0032] In the present invention, by using the connection device 13 to generate a vertical elastic displacement between the first card clamp plate 11 and the second card clamp plate 12, it becomes easy to form a storage space between the first card clamp plate 11 and the second card clamp plate 12 that can store multiple cards, and by providing an elastic recovery force using the provided first elastic member, the first card clamp plate 11 and the second card clamp plate 12 can clamp multiple cards, making it easy and convenient to insert and remove cards. The provision of the blocking device 17 prevents the card 200 from falling out of the pocket 15, which is advantageous in preventing the card case from falling out, and the structure is simple and easy to use.

[0033] Those skilled in the art to which the present invention pertains can make appropriate changes and modifications to the above embodiments based on the disclosure and teachings of this specification. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and any modifications and variations of the present invention should also be included in the scope of protection of the claims of the present invention. Although some specific terms are used in this specification, these terms are used for the convenience of description and do not limit the present invention in any way.

Claims

1. A card case including a card case body, the card case further includes an elastic member provided on the card case body, which provides an elastic restoring force for the first card clamping plate and the second card clamping plate to return to their initial positions from the expanded position.

2. 2. The card case according to claim 1, wherein two connection devices are provided on each of the opposing sides of the first card clamping plate and the second card clamping plate, and the two connection members of each connection device are hinge-connected by at least one hinge portion.

3. 3. The card case according to claim 2, wherein the elastic member is provided between the two hinge portions, and the elastic member is a spring, an elastic strip, or an elastic cord.

4. 2. The card case according to claim 1, wherein the elastic member is positioned between the first card holding plate and the second card holding plate.

5. 5. The card case according to claim 4, wherein the elastic member is an elastic band or an elastic strip.

6. 2. The card case of claim 1, wherein the connection device further includes another elastic member attached to the connection member in a sleeve-like manner, one end of the another elastic member being disposed within the mounting groove of the first card clamping plate or the second card clamping plate, and the other end abutting against the inside of the mounting groove, and the another elastic member providing the connection member with an elastic recovery force that moves it horizontally outward.

7. 2. The card case according to claim 1, wherein the first card holding plate and the second card holding plate are provided with a blocking device for preventing the card from falling out.

8. 8. The card case of claim 7, wherein the blocking device includes two hinged connecting members, one end of each connecting member being attached to the first card clamping plate and the second card clamping plate, respectively, and the other end of each connecting member being hingedly connected by at least one hinge portion.

9. A card case including a card case body, a connecting device provided between the first card clamping plate and the second card clamping plate, the first and second card clamping plates being connected to each other by the connecting device, the connecting device causing relative vertical displacement between the first and second card clamping plates to form an internal space that is freely expandable and capable of accommodating at least one card, the connecting device including two connecting members provided on the first and second card clamping plates, respectively, the two connecting members being directly hinged or indirectly hinged via at least one hinge portion.

10. 10. The card case according to claim 9, wherein the card case body further comprises an elastic member, the elastic member providing an elastic restoring force for restoring the first card clamping plate and the second card clamping plate to their initial positions.

Citation Information

Patent Citations

  • Size-freely adjustable luggage case

    CN112914217A

  • Automatic card case

    CN201777011U

  • Wallet money clip

    US11284689B1