Triangle display board

Abstract

To provide a triangular display board which is easy to store, does not take up space, and does not need to be assembled when used. [Solution] The triangular sign 1 has six coil springs 10 with round hooks, four double rings 12, and light-reflecting cloth 20. Each light-reflecting cloth 20 has a fitting portion in the center of its longitudinal direction into which the coil springs 10 with round hooks are fitted. Also, on both sides of the fitting portion are two frame portions 22, 23 that form the strip-shaped portions of adjacent faces of a regular tetrahedron. The two light-reflecting cloths 20 are connected to each other with snap buttons 25, 26 provided on the frame portions 22, 23. Two of the coil springs 10 with round hooks that do not intersect can be folded for storage, and when released from the folded state, the elastic force of the two coil springs 10 with round hooks unfolds and stands up as a regular tetrahedron.

Description

[Technical Field]

[0001] This invention relates to a warning triangle used in the event of a vehicle breakdown. [Background technology]

[0002] Triangular warning signs are installed to prevent rear-end collisions with vehicles behind when a vehicle is forced to make an emergency stop due to a breakdown or other reason. When an emergency stop is necessary, drivers become overwhelmed and find it difficult to act calmly, making it difficult to assemble and install the triangular warning sign quickly. In light of this situation, the triangular warning sign in Patent Document 1 has been proposed.

[0003] This triangular stop sign is formed by cutting out a triangular sign (5) in one half (2) of a base plate (1) with only its base edge (6) connected, allowing it to stand up from the base edge (6). Also, a long, narrow support member (8) is cut out in the other half (3) of the base plate (1) with only its inner edge (9) connected, allowing it to stand up from the inner edge (9). The tip of the upright support member (8) is fixed to the upper back surface of the upright triangular sign (5), so that when the base plate (1) is unfolded, the triangular sign (5) is supported by the support member (8) and can maintain its upright state. When folded, the triangular sign (5) fits snugly within the triangular sign cutout (5a) in the one half (2), and the support member (8) fits snugly within the support member cutout (8a) in the other half (3). This triangular stop sign can be folded flat for storage, so it does not take up much space, and when in use, it can be quickly assembled and set up by simply unfolding it after removal. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 5643454 Summary of the Invention [Problem to be solved by the invention]

[0005] However, in the triangular warning sign described in Patent Document 1, in order for the triangular warning sign (5) to be supported by the support material (8) and maintain an upright state, the tip of the upright support material (8) must be fixed to the upper back surface of the upright triangular warning sign (5) and assembled. In an emergency, it can be difficult to remain calm, and even simple assembly can be difficult. Therefore, if a warning sign could be easily stored and not take up much space, and could be unfolded and erected as a triangular warning sign without the need for assembly when in use, it would be easier to prevent rear-end collisions with vehicles behind.

[0006] The present invention has been made in consideration of the above-mentioned problems of the prior art, and provides a triangular warning sign that is easy to store, does not take up space, and does not require assembly when in use. [Means for solving the problem]

[0007] In order to solve the above problem, the triangular signboard of claim 1 is characterized in that it has six side members made of a long elastic material that form the sides of a regular tetrahedron, four vertex members that fasten the ends of the three side members to form the vertices of the regular tetrahedron, and a frame member that forms the strip-shaped portion of a hollow triangle that is the shape of the four faces of the regular tetrahedron, and the frame members are six pieces of cloth, and each frame member has an insertion portion in the center of the longitudinal direction into which the side members are inserted, and two frame portions on both sides of the insertion portion that form the strip-shaped portions of adjacent faces of the regular tetrahedron, and the two frame members are connected to each other by connecting means provided on the frame portions, and two of the side members that do not intersect can be folded and stored, and when released from the folded state, the elastic force of the two non-intersecting side members causes it to unfold and stand up as a regular tetrahedron.

[0008] The triangular sign of claim 2 is characterized in that, in claim 1, the side member is a coil spring with round hooks provided on both ends, the vertex member is a double ring, and the frame member is a light-reflecting cloth that has the function of reflecting light.

[0009] The triangular warning sign according to claim 3 is characterized in that in claim 1, the side members are hollow pipes or solid round bars made of elastic resin.

[0010] The warning triangle according to claim 4 is characterized in that in any one of claims 1 to 3, the connecting means is a snap button.

[0011] The warning triangle according to claim 5 is characterized in that in any one of claims 1 to 3, the connecting means is a sewing thread. [Effects of the Invention]

[0012] The triangular display board according to claim 1 is a triangular display board having six side members, four vertex members, and a frame member. Each frame member has a fitting portion in the center of its longitudinal direction into which the side member is fitted. Also, on both sides of the fitting portion are two frame portions that form strip-shaped portions of adjacent faces of a regular tetrahedron. Furthermore, the two frame members are connected to each other by connecting means provided on the frame portions.

[0013] Furthermore, because the two non-intersecting side members can be folded for storage, the triangular sign can be easily folded and does not take up much space. Furthermore, when the folded triangular sign is opened, the elasticity of the two non-intersecting side members causes it to unfold and stand up as a regular tetrahedron, eliminating the need for assembly when in use. Therefore, this triangular sign is easy to store and does not take up much space, and does not require assembly when in use. Furthermore, this triangular sign can be installed far away by simply throwing it, without requiring a person to move to set it up. Furthermore, regardless of the orientation of any of the regular tetrahedron faces on the ground, it can be recognized as a triangle by vehicles behind on the road.

[0014] In the triangular sign of claim 2, the side members are coil springs with round hooks at both ends, and the vertex member is a double ring, so the vertices of a regular tetrahedron can be easily formed by fastening the three round hooks of the coil spring to the double ring. Furthermore, the frame member is a light-reflecting fabric that reflects light, making it easy for vehicles behind to notice.

[0015] In the triangular sign according to claim 3, the side members are hollow pipes or solid round bars made of elastic resin, so that the weight can be reduced.

[0016] In the warning triangle according to claim 4, the connecting means is a snap button, which makes it easy to attach and detach the frame members, and is particularly convenient. In particular, if some of the frame members become damaged or soiled, they can be easily replaced.

[0017] In the warning triangle according to claim 5, the connecting means is sewing thread, so the warning triangle can be manufactured at low cost. [Brief explanation of the drawings]

[0018] [Figure 1] FIG. 2 is a perspective view of the warning triangle of the first embodiment. [Figure 2] 1A and 1B are a front view and a perspective view of a coil spring with a hook, respectively, of the triangular indicator plate of the first embodiment, and a double ring, respectively. [Figure 3] FIG. 2 is a front view of the light-reflecting fabric of the warning triangle of the first embodiment. [Figure 4] FIG. 10 is a front view of the triangular warning sign of the first embodiment, showing a hook-equipped coil spring fitted into the fitting portion of the light-reflecting fabric. [Figure 5] 10 is a diagram showing the triangular display plate of the first embodiment, in which the round hooks 10b of the coil spring 10 with three round hooks are fastened by the double ring 12. FIG. [Figure 6] FIG. 2 is a perspective view of the warning triangle of the first embodiment when it is first folded. [Figure 7]FIG. 2 is a perspective view of the warning triangle according to the first embodiment, showing the warning triangle being folded. [Figure 8] 10 is a diagram showing the folded warning triangle of the first embodiment being stored in a storage bag. FIG. [Figure 9] 10 is a diagram showing the folded triangular display panel of the first embodiment, standing up as a regular tetrahedron. FIG. [Figure 10] FIG. 10 is a perspective view of a warning triangle according to a second embodiment. [Figure 11] FIG. 10 is a front view of the light-reflecting fabric of the warning triangle of the second embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0019] First and second embodiments of the triangular sign plate according to the present invention will be described below with reference to the drawings. First, the triangular sign plate of the first embodiment will be described. As shown in FIG. 1, this triangular sign plate 1 includes six coil springs 10 with round hooks made of elongated elastic material that form the sides of a regular tetrahedron, four double rings 12 that fasten the ends of three of the coil springs 10 with round hooks to form the vertices of the regular tetrahedron, and six pieces of light-reflecting fabric 20 that form the hollow triangular bands that form the four faces of the regular tetrahedron. The light-reflecting fabric 20 is a red fabric that reflects light. The coil springs 10 with round hooks are the "side members," the double rings 12 are the "vertex members," and the light-reflecting fabric 20 are the "frame members."

[0020] The coil spring 10 with round hooks is made of metal and, as shown in FIG. 2(1), consists of a coil body 10a, which is a long elastic body, and round hooks 10b attached to both ends of the coil body 10a. The six coil bodies 10a form the sides of a regular tetrahedron. The round hooks 10b of three of the coil springs with round hooks 10 are fastened by a double ring 12, forming one vertex of the regular tetrahedron. Here, the round hook 10b is the "end." As shown in FIG. 2(2), the double ring 12 is a metal fitting formed by doubling a thin metal wire. Because the metal wire is double-wound in this double ring 12, the round hooks 10b can be attached and removed. However, since the round hooks 10b fastened to the double ring 12 cannot be easily removed, they are stabilized as vertices of the regular tetrahedron. Note that instead of the coil spring with round hooks, a hollow pipe or solid round bar made of lightweight, elastic resin may be used. Furthermore, the double ring 12 may be made of resin.

[0021] As shown in Figure 3, the light-reflecting cloth 20 is an octagon with the same shape on both sides, formed by folding back a single piece of fabric at the long side 20c. The light-reflecting cloth 20 consists of two parallel long sides 20c and 20g, two opening sides 20a and 20e perpendicular to the long sides 20c and 20g, and four oblique sides 20b, 20d, 20f, and 20h connecting the opening sides 20a and 20e to the long sides 20c and 20g. The long sides 20c and 20g and the oblique sides 20b, 20d, 20f, and 20h are sewn together with sewing threads 27a and 27b. However, the opening sides 20a and 20e are not sewn together because they are used to fit the round hook coil spring 10. Both ends of opening side 20a and both ends of opening side 20e are sewn parallel to long sides 20c and 20g with sewing threads 27c and 27d. Furthermore, the angle θ formed between oblique sides 20b, 20d, 20f, and 20h and sewing threads 27c and 27d is 60 degrees. Note that although light reflecting cloth 20 has an octagonal shape with the same shape on both sides, with one piece of cloth folded back at long side 20c, two octagonal pieces of cloth with the same shape on both sides may be sewn together.

[0022] In this way, the opening sides 20a and 20e and the sewing threads 27c and 27d form a fitting portion 21 in the longitudinal center of the light reflecting cloth 20, into which the round hook coil spring 10 is fitted. Furthermore, on both sides of the fitting portion 21, trapezoidal frame portions 22 and 23 are formed by the long sides 20c and 20g, the oblique sides 20b, 20d, 20f, and 20h, and the sewing threads 27c and 27d. These frame portions 22 and 23 form the strip-like portions of adjacent faces of a regular tetrahedron. Furthermore, four snap buttons 25 and 26 are attached near the intersections of the long sides 20c and 20g and the oblique sides 20b, 20d, 20f, and 20h of the frame portions 22 and 23. These snap buttons 25 and 26 consist of a convex button 25 and a concave button 26, and adjacent snap buttons 25 and 26 always have a convex button 25 and a concave button 26. By arranging the convex buttons 25 and the concave buttons 26 in this manner, all six pieces of light reflecting cloth 20 have the same configuration, which makes manufacturing easier and provides versatility.

[0023] A method for manufacturing the triangular sign 1 configured as described above will now be described. First, six coil springs 10 with round hooks, four double rings 12, and six pieces of light-reflecting cloth 20, as shown in FIGS. 2 and 3, are prepared. Then, as shown in FIG. 4, for all six pieces of light-reflecting cloth 20, the coil springs 10 with round hooks are inserted into the insertion portions 21 from one of the opening sides 20a, 20e. Then, as shown in FIG. 5, the round hooks 10b of three coil springs 10 with round hooks are fastened by one double ring 12. Similarly, the round hooks 10b of three coil springs 10 with round hooks are fastened to each of the remaining three double rings 12 to form a regular tetrahedron. Next, the convex button 25 and the concave button 26 provided on the frame portions 22, 23 of the light-reflecting cloth 20 on the same side of the regular tetrahedron are fitted together to form a hollow triangle, which is the shape of the four faces of the regular tetrahedron. At this time, the angle θ formed by the hypotenuses 20b, 20d, 20f, and 20h of the light-reflecting fabric 20 and the sewing threads 27c and 27d is 60 degrees, so the shape of this part matches the shape of the vertex of an equilateral triangle, and there is no excess or shortage of light-reflecting fabric 20. In this way, the triangular sign 1 shown in Figure 1 is completed. Note that the frame portions 22 and 23 form the strip-shaped portion of the hollow triangle.

[0024] Next, we will explain how to store this triangular sign 1. As shown in Figure 6, of the six coil springs 10 with round hooks that make up the sides of a regular tetrahedron, any one coil spring 10-1 with round hooks is pushed in the direction of arrow A, which is inside the regular tetrahedron. This causes the pushed coil spring 10-1 with round hooks to fold to approximately half its length, and the two double rings 12 are overlapped.

[0025] Then, as shown in FIG. 7, while holding the two overlapping double rings 12, apply force to the remaining two double rings 12 in the directions of arrows B and C. This causes the non-intersecting coil spring 10-2, which faces the coil spring 10-1 with round hooks, already folded to approximately half its length, to fold to approximately half its length. In this way, only the two non-intersecting coil springs 10-1 and 10-2 with round hooks are folded, while the remaining four coil springs 10 with round hooks are not. This allows for easy folding without requiring much force and saves space. The folded triangular sign 1 can then be stored in a storage bag 30, as shown in FIG. 8. In this specification, any two non-intersecting coil springs of the six coil springs 10 with round hooks may also be referred to as the coil springs 10-1 and 10-2 with round hooks.

[0026] Next, we will explain how to unfold this triangular sign 1 and erect it as a regular tetrahedron. As shown in Figure 9, the central portion of the folded triangular sign 1 is grasped and thrown toward the desired location where the triangular sign 1 should unfold and erect as a regular tetrahedron. As a result, the folded triangular sign 1 unfolds and erects as a regular tetrahedron due to the elastic force of two non-intersecting coil springs 10-1 and 10-2 with round hooks, as shown by the arrows in Figure 9. This eliminates the need for assembly and allows the triangular sign 1 to be quickly erected as a regular tetrahedron, making it easier to prevent rear-end collisions with vehicles behind. Furthermore, this triangular sign 1 can be installed far away by simply throwing it, without requiring a person to move to set it up. Furthermore, regardless of the orientation of any of the tetrahedron's faces on the ground, it can be recognized as a triangle by vehicles behind on the road.

[0027] In the triangular sign 1 of the first embodiment, two of the non-intersecting coil springs 10 with round hooks can be folded for storage, making it easy to fold and space-saving for storage. Furthermore, when the folded triangular sign 1 is released from the hand, the elastic force of the two non-intersecting coil springs 10-1 and 10-2 with round hooks causes it to unfold and stand up as a regular tetrahedron, eliminating the need for assembly when in use. Therefore, this triangular sign 1 is easy to store, does not take up space, and does not require assembly when in use.

[0028] Furthermore, in this triangular warning sign 1, the vertices of a regular tetrahedron can be easily formed by fastening the round hooks 10b of the three round hook coil springs 10 to the double ring 12. Furthermore, the light reflective fabric 20 has the function of reflecting light, making it easy for vehicles behind to notice.

[0029] Furthermore, in this triangular warning sign 1, weight can be reduced by using a hollow pipe or a solid round bar made of elastic resin instead of the coil spring with a round hook.

[0030] Furthermore, this warning triangle 1 is convenient because the frame members can be easily attached and detached using the snap buttons 25 and 26. In particular, if a portion of the light-reflecting fabric 20 becomes damaged or soiled, it can be easily replaced.

[0031] Next, a triangular sign board of embodiment 2 will be described. However, the same components as those of embodiment 1 are designated by the same reference numerals, and their description will be omitted. As shown in FIG. 10 , the triangular sign board 2 includes six coil springs 10 with round hooks, each made of a long elastic body, that form the sides of a regular tetrahedron; four double rings 12 that fasten the round hooks 10b of the three coil springs 10 to form the vertices of the regular tetrahedron; and six light-reflecting cloths 30 that form the hollow triangular bands that form the four faces of the regular tetrahedron. Here, the light-reflecting cloths 30 are red, light-reflecting cloths, and serve as "frame members." Furthermore, sewing thread 31 is used as a connecting member to fasten the light-reflecting cloths 30 on the same face of the regular tetrahedron.

[0032] 11, the light reflecting cloth 30 has exactly the same shape as the light reflecting cloth 20 of the first embodiment, except that the snap buttons 25, 26 provided on the light reflecting cloth 20 are not attached.

[0033] To manufacture this triangular sign board 2, instead of fitting together the convex button 25 and the concave button 26 provided on the light-reflecting cloth 20 on the same surface of the regular tetrahedron as in the case of manufacturing the triangular sign board 1, the light-reflecting cloth 20 on the same surface of the regular tetrahedron can be sewn together with sewing thread 31.

[0034] In the warning triangle 2 of the second embodiment, the light reflecting cloths 20 can be connected by sewing together the light reflecting cloths 20 on the same face of the regular tetrahedron with sewing thread 31, so that the warning triangle 2 can be manufactured inexpensively. Otherwise, the configuration and operation of the warning triangle 2 are the same as those of the first embodiment.

[0035] While the triangular sign of the present invention has been described above in accordance with the first and second embodiments, the present invention is not limited to these and can be modified as appropriate without departing from the technical concept of the present invention. For example, while the first and second embodiments use a coil spring 10 with a round hook as the edge member, other types of bending springs such as a rod spring or a leaf spring can also be used. [Explanation of symbols]

[0036] 1, 2...triangular display plate, 10, 10-1, 10-2...side member (coil spring with round hook), 10b...end (round hook), 12...vertex member (double ring), 20, 30...frame member (light-reflective fabric), 21...insertion portion, 22, 23...frame portion, 25, 26, 31...connection means (25, 26...snap button, 31...sewing thread).

Claims

1. A triangular signboard having six side members made of a long elastic body that form the sides of a regular tetrahedron, four vertex members that fasten the ends of the three side members to form the vertices of the regular tetrahedron, and a frame member that forms a strip-shaped hollow triangle that is the shape of the four faces of the regular tetrahedron, The frame member is made of six pieces of fabric, Each of the frame members has a fitting portion in the center in the longitudinal direction into which the side member is fitted, and two frame portions on both sides of the fitting portion that form band-like portions of adjacent faces of a regular tetrahedron, The two frame members are connected to each other by a connecting means provided on the frame portion, The triangular display board is characterized in that it can be stored by folding two of the side members that do not intersect, and when released from the folded state, it unfolds due to the elastic force of the two side members that do not intersect and stands up as a regular tetrahedron.

2. The side member is a coil spring with round hooks provided at both ends, the apex member is a double ring; 2. The warning triangle according to claim 1, wherein the frame member is a light-reflecting fabric having a function of reflecting light.

3. 2. The triangular sign according to claim 1, wherein the side members are hollow pipes or solid round bars made of elastic resin.

4. 4. The warning triangle according to claim 1, wherein the connecting means is a snap button.

5. 4. The warning triangle according to claim 1, wherein the connecting means is a sewing thread.

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