Folding type sword rack
The foldable knife holder addresses the impracticality of conventional holders by allowing easy assembly, disassembly, and portability through its innovative V-shaped design with a storable horizontal plate, providing a stable and secure solution for Japanese swords.
Patent Information
- Application Number
- JP2023198121
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2023-11-22
- Publication Date
- 2025-06-03
- Estimated Expiration
- 2043-11-22
AI Technical Summary
Conventional knife holders for Japanese swords are non-dismantlable, bulky, and difficult to carry, making them impractical for use outside of specific events or exhibitions.
A foldable knife holder composed of a pair of vertical plates connected to form a V-shape, with a horizontal plate that can be stored within the vertical plates when not in use, allowing for easy assembly, disassembly, and portability.
The foldable design enables the knife holder to be compactly stored and easily carried, addressing the issues of bulkiness and portability of conventional holders while providing a stable and secure mounting solution for Japanese swords.
Smart Images

Figure 2025084316000001_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to a foldable knife holder for mounting a Japanese sword.
Background Art
[0002] Iaido tournaments, which are martial arts using Japanese swords (real swords or imitation swords), are regularly held. In an iaido tournament, since there is usually no clearly defined placement location for the Japanese swords of the participants, they are almost always placed flat on the floor along the wall of the venue or at the feet of the spectator seats. For this reason, when a participant takes out their own Japanese sword from among the Japanese swords placed flat in a disorderly manner, there is a risk of hitting surrounding structures or other people's belongings, or accidentally kicking the Japanese swords of other participants while walking.
[0003] Japanese swords are expensive, ranging from several hundred thousand yen for inexpensive ones to tens of thousands of yen even for imitation swords without blades. Also, the wooden parts of Japanese swords cannot be restored if they are damaged or dented, and it becomes necessary to incur costs for repair. Therefore, it can be said that in an iaido tournament, it is best to provide a dedicated placement location at the venue and place the Japanese swords on a knife holder (see, for example, Patent Document 1).
Prior Art Documents
Patent Documents
[0004]
Patent Document 1
Summary of the Invention
Problems to be Solved by the Invention
[0005] However, conventional knife holders were assembled from a plurality of parts and were non-dismantlable and bulky, so they were not easy to carry, and were rarely used outside except for opportunities such as exhibition sales by professionals.
[0006] Therefore, the present invention has been made in view of the above problems, and an object thereof is to provide a foldable knife holder that is easy to carry around.
Means for Solving the Problems
[0007] In order to solve the above problems, the present invention comprises a pair of left and right vertical plates provided with at least one groove for supporting the knife horizontally and facing each other, and connected so as to be openable and closable, and a horizontal plate for fixing the vertical plates in an open V-shaped state. The vertical plates are provided with mounting holes for attaching the horizontal plate in an open V-shaped state so as to face each other. At both end portions of the horizontal plate, notches are provided that can be fitted into the vertical plates when the horizontal plate is inserted into the mounting holes of the vertical plates. A recess for storing the horizontal plate when not in use is provided on the inner surface of the vertical plate, and a foldable knife holder is provided.
Effects of the Invention
[0008] According to the present invention, a foldable knife holder that is easy to carry around can be provided.
Brief Description of the Drawings
[0009]
Figure 1
Figure 2
Figure 3
Figure 4
Embodiment for Carrying out the Invention
[0010] The foldable knife holder according to the embodiment of the present invention will be described with reference to the accompanying drawings. The foldable knife holder 1 according to the embodiment of the present invention shown in Fig. 1(a) is for horizontally placing a plurality of Japanese swords thereon, and includes a pair of left and right vertical plates 2 and 3 that are connected so as to be openable and closable, and a horizontal plate 4 for fixing the vertical plates 2 and 3 in a state where they are opened in a V shape.
[0011] The vertical plate 2 is made of wood, for example, a lauan lumber core material with a thickness of 15 mm, and is composed of a trapezoidal plate-shaped member extending in the vertical direction as shown in Fig. 2(a). Near the upper base of the vertical plate 2, a handle hole 5, which is a rounded rectangular through-hole extending in the horizontal direction, is formed as a handle for the user to carry the knife holder 1. Near the side (hereinafter referred to as the "vertical side") of the vertical plate 2 facing the hypotenuse, a handle hole 6, which is a rounded rectangular through-hole extending in the vertical direction, is formed in the same manner as the handle hole 5 near the upper base.
[0012] A plurality of grooves 7 penetrating in the thickness direction of the vertical plate 2 are formed at equal intervals on the hypotenuse of the vertical plate 2. The plurality of grooves 7 are for supporting a plurality of Japanese swords, and have the same shape and the same dimensions as each other. Specifically, the plurality of grooves 7 are composed of notches that are approximately circular and extend from the hypotenuse of the vertical plate 2 toward the vertical side and further toward the lower base. In this embodiment, nine grooves 7 are provided on the vertical plate 2 in order to enable a maximum of nine Japanese swords to be placed on the knife holder 1.
[0013] On the vertical side of the plurality of grooves 7 near the hypotenuse of the vertical plate 2, small recesses 8, 8, which are small rectangular recesses, are formed above and below, and magnets 9, 9 are respectively embedded in the small recesses 8, 8. Near the upper end of the hypotenuse of the vertical plate 2, a finger hook groove 11, which is a small rectangular recess cut out so as to reach the hypotenuse, is formed. Note that the position of the finger hook groove 11 on the vertical plate 2 is not limited to the vicinity of the upper end of the hypotenuse, and may be, for example, near the lower end of the hypotenuse or the like. On the lower base of the vertical plate 2, a trapezoidal notch 12 is formed.
[0014] At the central position of the vertical plate 2, a rectangular recess 13 extending in the vertical direction for accommodating the horizontal plate 4 is formed. On the lower hypotenuse side of the recess 13 of the vertical plate 2, a rectangular mounting hole 14 for attaching the horizontal plate 4 is formed.
[0015] The vertical plate 3 is made of the same wood as the above-described vertical plate 2, and is composed of a right trapezoidal plate-shaped member having the same shape and dimensions as the vertical plate 2 as shown in Fig. 2(a). On the vertical plate 3, handle holes 5, 6 similar to those of the vertical plate 2, a plurality of grooves 7, small recesses 8, 8, a finger hook groove 11, a notch 12, a recess 13, and a mounting hole 14 are provided so as to face those of the vertical plate 2. Note that magnets 9, 9 are embedded in the small recesses 8, 8 of the vertical plate 3 in the same manner as in the vertical plate 2. At the central position of the bottom surface of the recess 13 of the vertical plate 3, a small recess 15, which is a small rectangular recess, is further formed. And a magnet 16 is embedded in the small recess 15.
[0016] Tape-shaped felt materials 17, 17 are attached to the hypotenuses of the vertical plates 2, 3 and the end faces of the respective grooves 7, 7 (the surface of the vertical plate 2 when viewed from the left in Fig. 2(a) and the surface of the vertical plate 3 when viewed from the right in Fig. 2(a)). Note that the end face is not limited to the felt material 17, and other tape-shaped cloths or rubbers having cushioning properties may be attached. The above-described vertical plates 2, 3 are connected so as to be openable and closable by three hinges 18, 18, 18 attached with their vertical sides adjacent to each other at equal intervals.
[0017] The horizontal plate 4 is made of wood (for example, a lauan lumber core material with a thickness of 15 mm), and is composed of a rectangular elongated plate-shaped member that can be accommodated in the recesses 13, 13 of the vertical plates 2, 3 as shown in Fig. 2(b). At the central position on one surface of the horizontal plate 4, a small concave portion 19, which is a rectangular small recess, is formed, and a magnet 21 is embedded in the small concave portion 19.
[0018] On the horizontal plate 4, two rectangular cutouts 22, 22 extending from the central position in the short side direction to one long side are formed. The cutouts 22, 22 are provided near both ends in the longitudinal direction of the horizontal plate 4, specifically, at positions equidistant from the central position in the longitudinal direction. Note that when looking at the other surface of the horizontal plate 4 (the surface opposite to the surface having the small concave portion 19), the cutouts 22, 22 penetrate the horizontal plate 4 in the thickness direction, and the direction of penetration of the horizontal plate 4 is inclined by a predetermined angle outward in the longitudinal direction (see Fig. 2(c)). With this configuration, when the vertical plates 2 and 3 are fitted into the cutouts 22, 22 of the horizontal plate 4 for using the knife holder 1 as described later, no play occurs between them, and the stability of the knife holder 1 can be improved.
[0019] When using the knife holder 1 having the above-described configuration, the user arranges the vertical plates 2 and 3 on the floor or the like in a V-shaped open state centering on the hinges 18, 18, 18. Next, the user inserts both end portions of the horizontal plate 4 into the mounting holes 14, 14 of the vertical plates 2 and 3, and fits the vertical plates 2 and 3 into the cutouts 22, 22 of the horizontal plate 4. By thus simply assembling the knife holder 1 by the user, the knife holder 1 becomes usable. Then, the user can place the Japanese sword on the knife holder 1 by arranging the Japanese sword horizontally in the groove 7 of the vertical plate 2 and the groove 7 of the vertical plate 3 facing it.
[0020] When not using the knife holder 1, the user removes the horizontal plate 4 from the mounting holes 14, 14 of the vertical plates 2 and 3, and stores the horizontal plate 4 in the concave portion 13 of the vertical plate 3 so that the magnet 21 of the horizontal plate 4 faces the magnet 16 of the concave portion 13 of the vertical plate 3. Thereby, the magnet 21 of the horizontal plate 4 and the magnet 16 of the concave portion 13 of the vertical plate 3 come into contact with each other, and the horizontal plate 4 can be fixed to the concave portion 13 of the vertical plate 3. Therefore, when the user opens and closes the vertical plates 2 and 3, it is possible to prevent the horizontal plate 4 from inadvertently coming off from the concave portion 13 of the vertical plate 3.
[0021] Next, the user can close the vertical plates 2 and 3, so that the magnets 9, 9 on the vertical plate 2 and the magnets 9, 9 on the vertical plate 3 facing it come into contact respectively, and the vertical plates 2 and 3 can be fixed so as not to be accidentally opened. In this way, the user can disassemble the knife holder 1 and fold it compactly, and can easily carry the knife holder 1 by putting fingers into the handle holes 5, 5 or the handle holes 6, 6 of the vertical plates 2 and 3. Also, since the horizontal plate 4 can be stored in the recesses 13, 13 of the vertical plates 2 and 3 as described above, the knife holder 1 can be stored and carried without losing the horizontal plate 4. Incidentally, the vertical plates 2 and 3 fixed by the magnets 9, 9, 9, 9 as described above can be easily opened by the user hooking a finger on the finger-hooking grooves 11, 11 of the vertical plates 2 and 3.
[0022] As described above, felt materials 17 are attached to the hypotenuses of the vertical plates 2 and 3 and the mouth surfaces of the respective grooves 7, 7. Thereby, not only the design property of the knife holder 1 is enhanced, but also when the user inserts and removes the Japanese sword into and out of the grooves 7, 7 of the vertical plates 2 and 3, it is possible to prevent the Japanese sword from accidentally hitting the hypotenuses of the vertical plates 2 and 3 or the mouth surfaces of the grooves 7, 7 and causing scratches or dents on the Japanese sword.
[0023] As described above, according to the present embodiment, a foldable knife holder 1 can be realized which is composed of a minimum number of parts, can be easily assembled and disassembled, can be folded compactly, does not require a large storage space when not in use (such as during transportation or storage), and is easy to carry. Also, when the knife holder 1 is folded, the vertical plates 2 and 3 are fixed by the magnets 9, 9, 9, 9, so that the labor of packing during storage and transportation can be omitted, and the convenience can be improved.
[0024] Incidentally, in the present embodiment, the vertical plates 2 and 3 are provided with nine grooves 7, 7, but the number of the grooves 7, 7 is not limited to this. For example, as shown in FIGS. 4(a) and 4(b), a knife holder 10 provided with five grooves 7, 7 on the vertical plates 2 and 3 may be used. Also, the shape and size of the grooves 7, 7 are not limited to the approximate circular shape described above, and for example, at least one of the grooves 7, 7 may be rectangular, triangular, or the like.
[0025] Further, it may be configured to further include small rectangular notches (small grooves) extending downward at positions vertically below the grooves 7 and 7. Thereby, since the blade of the Japanese sword can be placed in the small groove, the Japanese sword removed from the sheath can be stably placed on the sword stand 1. Note that the small groove is not limited to a rectangular shape, and may be a circular shape, a triangular shape, or the like.
[0026] Further, the shapes of the vertical plates 2 and 3 are not limited to the right trapezoidal shape described above, and may be, for example, a rectangular shape, a right triangular shape, or the like. In addition, in this embodiment, when folding the sword stand 1 as described above, the horizontal plate 4 is fixed to the concave portion 13 of the vertical plate 3 by magnets 16 and 21, and the vertical plates 2 and 3 are fixed to each other by magnets 9, 9, 9, and 9. However, the present invention is not limited to this, and other fixing means, such as hook-and-loop fasteners or suction cups, may be employed. Further, for example, a wooden U-shaped member may be prepared and attached to and fixed to the hypotenuse portions of the folded vertical plates 2 and 3.
[0027] In addition, in this embodiment, a pair of notches 22, 22 are provided near both ends of the horizontal plate 4 as described above. However, the present invention is not limited to this, and as shown in FIG. 2(d), at least a pair of notches may be further provided at positions inside the longitudinal direction of the horizontal plate 4 as viewed from the notches 22, 22 and at equal intervals from the central position in the longitudinal direction of the horizontal plate 4. With this configuration, the opening angle of the vertical plates 2 and 3 when using the sword stand 1 can be changed according to the length of the Japanese sword, and the Japanese sword can be placed on the sword stand 1 more stably. Note that it is more preferable that the inclination angle of the at least a pair of notches in the direction penetrating the horizontal plate 4 is smaller than that of the notches 22, 22.
[0028] Note that the object placed on the sword stand 1 is not limited to the Japanese sword, and other swords or rod-shaped objects can also be placed on the sword stand 1.
Explanation of Reference Numerals
[0029] 1, 10 Sword stand 2, 3 Vertical plates 4 Horizontal plate 5, 6 Handle holes 7 grooves 8, 15, 19 small recesses 9, 16, 21 magnets 11 finger-hooking grooves 12 notch 13 recess 14 mounting hole 17 felt material 18 hinge 22 notch
Claims
1. It comprises a pair of left and right vertical plates that are provided with at least one groove each for supporting the knife horizontally and are connected so as to be openable and closable, and a horizontal plate for fixing the vertical plates in a state where they are opened in a V shape. The vertical plates are provided with mounting holes for attaching the horizontal plate in a state where they are opened in a V shape so as to face each other. At both end portions of the horizontal plate, notches are respectively provided that can be fitted into the vertical plates when the horizontal plate is inserted into the mounting holes of the vertical plates. A folding knife holder, characterized in that a recess for storing the horizontal plate when not in use is provided on the inner surface of the vertical plate.
2. The folding knife holder according to claim 1, characterized in that the vertical plates are provided with first fixing means for fixing the vertical plates to each other when the vertical plates are closed.
3. The folding knife holder according to claim 1, characterized in that the recess of the vertical plate and the horizontal plate are provided with second fixing means for fixing the horizontal plate to the recess when the horizontal plate is stored in the recess.
4. The folding knife holder according to claim 1, characterized in that the vertical plates are provided with at least one through hole each as a handle for carrying the knife holder so as to face each other.
5. The folding knife holder according to claim 1, characterized in that a small recess is provided on the inner surface of the vertical plate, which is notched to reach one side of the vertical plate as a finger hook groove for opening the closed vertical plate.
6. The folding knife holder according to claim 2, characterized in that the first fixing means comprises magnets provided at least one each so as to face each other on the vertical plates.
7. The folding knife holder according to claim 3, characterized in that the second fixing means comprises magnets provided so as to face the horizontal plate and the recess when the horizontal plate is stored in the recess of the vertical plate.
Citation Information
Patent Citations
JP1975072600U