Indication device

Abstract

To provide a display device capable of clearly visually recognizing a direction indicated by an arrow beacon part while preventing falling by adopting a vent hole.SOLUTION: A display device 1 comprises a display part 2 having an arrow beacon part 21 indicating a direction from a start point 21a to an end point 21b, and a ventilation-hole arrangement region part 22 which is outside a contour 21d of the arrow beacon part 21 and in which a plurality of ventilation holes 220 are arranged. The ventilation-hole arrangement region part 22 is located from one side to the other side of a straight line 21c passing through the start point 21a and the end point 21b of the arrow beacon part 21, and the plurality of ventilation holes 220 include radial-arrangement ventilation holes arranged radially in rows from the start-point 21a side to the end-point 21b side of the arrow beacon part 21.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a display device suitable for use as a road direction guide, in which an arrow marking portion indicating movement from a starting point to an ending point is formed on a display portion.

Background Art

[0002] In order to prompt lane changes on a road under construction or the like, an arrow display board for guiding the route direction is installed. A general arrow display board displays an arrow on the surfaces of two metal plates connected in a downward-opening manner.

[0003] Such a general arrow display board may move or fall down when strong wind blows, and not only fails to perform an accurate display function, but also may cause serious traffic safety problems if it hits pedestrians or vehicles in motion.

[0004] The arrow board described in Patent Document 1 proposes that a downward-opening display board in a side view is formed in a mesh shape, an arrow is marked at the center of the display board, and air passes through the mesh of the display board to prevent falling due to strong wind.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0006] As in the arrow board described in the above Patent Document 1, the arrow marked is not easily visible due to the presence of a large number of air-permeable holes formed in the display board, so it is difficult to recognize the direction indicated by the arrow. As a result of research, the inventor of the present invention has obtained the knowledge that the arrow becomes even more prominent depending on the arrangement of the air-permeable holes.

[0007] This invention is based on the above findings and aims to provide a display device that prevents tipping over by employing ventilation holes and allows the direction indicated by the arrow sign to be clearly visible. [Means for solving the problem]

[0008] The invention according to claim 1 is a display device comprising a display unit having an arrow indicator unit indicating a direction from a starting point to an ending point, and a ventilation hole arrangement area unit located outside the contour of the arrow indicator unit and having a plurality of ventilation holes, wherein the ventilation hole arrangement area unit is located from one side to the other of a straight line passing through the starting point and the ending point of the arrow indicator unit, and the plurality of ventilation holes comprises radially arranged ventilation holes arranged in a radial row from the starting point side toward the ending point side of the arrow indicator unit.

[0009] The invention according to claim 2 is the display device according to claim 1, characterized in that the arrow indicator portion has a shape that becomes thicker from the starting point to the ending point.

[0010] The invention according to claim 3 is a display device according to claim 1 or 2, characterized in that the radially arranged ventilation holes include long and short ventilation holes having an opening shape with a longitudinal direction and a short direction, and the long and short ventilation holes are arranged in a row radially from the starting point side to the ending point side of the arrow indicator portion with the longitudinal direction of the opening facing outwards.

[0011] The invention according to claim 4 is the display device according to claim 3, characterized in that the radially elongated ventilation holes are rhomboid ventilation holes having a diamond shape.

[0012] The invention according to claim 5 is the display device according to claim 3, characterized in that the radially elongated ventilation holes are elliptical in shape.

[0013] The invention according to claim 6 is a display device according to claim 3, characterized in that the radially elongated ventilation holes are arranged in a row such that at least one of the longitudinal direction and the short direction of the opening shape gradually increases radially from the starting point side to the ending point side of the arrow indicator portion.

[0014] The invention according to claim 7 is a display device according to claim 1 or 2, characterized in that a fluorescent strip is formed inside the contour of the arrow indicator portion, along the contour.

[0015] The invention according to claim 8 is a display device according to claim 1 or 2, characterized in that a handle hole is formed at the end of the display portion, and the handle hole has a shape that is curved inwardly convex. [Effects of the Invention]

[0016] The display device of the present invention has multiple ventilation holes arranged in the ventilation hole area, making it less likely to move or tip over even when subjected to strong winds. This prevents the loss of its directional function and avoids accidents such as collisions with pedestrians or moving vehicles. Furthermore, since the arrow indicator is equipped with radially arranged ventilation holes that are positioned in a radial pattern from the starting point to the ending point, the radially arranged ventilation holes complement the direction indicated by the arrow indicator, and as a result, the direction indicated by the arrow indicator can be clearly seen.

[0017] In addition, by making the arrow marker thicker from the starting point to the ending point, the direction indicated by the arrow marker is emphasized, improving visibility.

[0018] In addition, if the ventilation holes are made into long and short shaped openings such as rhombuses or ellipses with a longitudinal and a transverse direction, and radially elongated ventilation holes are arranged in a row with the longitudinal direction of the opening facing outwards radially from the starting point to the ending point, or if radially elongated ventilation holes are arranged in a row so that they gradually increase in size radially from the starting point to the ending point, the effect of emphasizing the direction indicated by the arrow indicator is further enhanced.

[0019] In addition, inside the contour of the arrow marking part, fluorescent strip lines are formed along this contour, so that even when installed in an environment with insufficient brightness, the direction indicated by the arrow marking part can be easily visually recognized.

[0020] In addition, by forming a handle hole with a shape that curves convexly inward at the end of the display part, when a finger is inserted into and grasped the handle hole, the handle hole and the bent finger fit well, making it easy to hold.

Brief Explanation of Drawings

[0021] [Figure 1] It is a front view of a display device showing the first embodiment. [Figure 2] It is a side view of a display device showing the first embodiment. [Figure 3] It is a perspective view of a display device showing the first embodiment. [Figure 4] It is a front view of a display device showing the second embodiment. [Figure 5] It is a front view of a display device showing the third embodiment. [Figure 6] It is a front view of a display device showing the fourth embodiment.

Modes for Carrying Out the Invention

[0022] Hereinafter, preferred embodiments of the present invention will be described in detail based on the drawings. Needless to say, the present invention is not limited to the embodiments described below.

[0023] 〔First Embodiment〕 Figures 1 to 3 show the first embodiment of the present invention. Figure 1 is a front view of the display device, Figure 2 is a side view of the display device, and Figure 3 is a perspective view of the display device.

[0024] In the first embodiment, the display device 1 is a device installed on a road to guide directions, and includes two display parts 2 and a coupling member 3 that couples the two display parts 2.

[0025] The display unit 2 is composed of a rectangular plate-like body made of metal such as iron or aluminum. The two display units 2 are joined together in a V-shape when viewed from the side by a connecting member 3 positioned along one of the longer sides (top side), so as to gradually widen towards the other longer side (bottom side).

[0026] When the display device 1 is installed on a road or the like, the connecting member 3 becomes the top, and the other long side of the expanded display unit 2 becomes the bottom. Furthermore, a roughly rectangular gripping hole 30 is formed in the central part of the connecting member 3.

[0027] Handle holes 20, which are curved inward in a convex shape, are formed on both the left and right sides (short edge ends) of the two display units 2. Because the handle hole 20 has a curved shape, when you insert your fingers into the handle hole 20 and grip it, your bent fingers and the handle hole 20 fit together comfortably, making it easy to grip.

[0028] On the surfaces of the two display units 2 (opposite sides), an arrow indicator section 21 and a ventilation hole arrangement area section 22 are formed.

[0029] The arrow indicator section 21 is an arrow display having a straight rod-shaped section 210 and protruding sections 211 extending from one end of the rod-shaped section 210 to both sides. A starting point 21a and an ending point 21b are set at two predetermined points on the display unit 2. The base end of the arrow (the base end of the rod-shaped part 210) is positioned at the starting point 21a, and the tip of the arrow (the tip of the protruding part 211) is positioned at the ending point 21b.

[0030] In this embodiment, the starting point 21a and ending point 21b are set such that a straight line 21c passing through the starting point 21a and ending point 21b is positioned parallel to the long side of the display unit 2, i.e., horizontally and approximately in the center in the height direction. The starting point 21a is set on the right side in Figure 1, and the ending point 21b is set on the left side in Figure 1.

[0031] Therefore, the arrow indicator section 21 has a rod-shaped section 210 positioned approximately in the center of the height direction, which was previously horizontal, and a protruding section 211 is positioned continuously at one end thereof, indicating the direction from the starting point 21a to the ending point 21b (from right to left in Figure 1). In other words, the arrow indicator section 21 of this embodiment encourages the viewer to move to the left.

[0032] The arrow indicator section 21 is displayed so that it faces the same direction on both display sections 2, and the rod-shaped section 210 is shaped to gradually become thicker from the starting point 21a to the ending point 21b.

[0033] The inside of the outline 21d of the arrow sign section 21 is colored with an attention-grabbing color such as red. A fluorescent strip 212 is placed inside the contour 21d of the arrow indicator section 21, following the contour 21d.

[0034] Even at night or in dark environments, the fluorescent stripe 212 glows in the shape of an arrow, clearly indicating the direction from the starting point 21a to the ending point 21b of the arrow indicator section 21. The area outside the outline 21d of the arrow indicator section 21 of the display section 2 is colored in a different color from the arrow indicator section 21.

[0035] The ventilation hole arrangement area 22 is the area outside the contour 21d of the arrow indicator section 21, and is located from one side to the other of the straight line 21c that passes through the starting point 21a and ending point 21b of the arrow indicator section 21. In other words, the ventilation hole arrangement area 22 is the area outside the contour 21d of the arrow indicator section 21, and is located from the upper side to the lower side with respect to the straight line 21c.

[0036] The ventilation hole arrangement area 22 has multiple ventilation holes 220 arranged therein. The ventilation holes 220 are formed by passing through openings into the plate-like body of the display unit 2.

[0037] Of the ventilation holes 220, each pair of ventilation holes 220a is formed in a triangular shape and is located adjacent to the starting point 21a side of the protruding portion 211 of the arrow indicator portion 21, with one side running along the edge of the protruding portion 211 on the starting point 21a side and the other side running along the upper and lower edges of the rod-shaped portion 210. The pair of triangular ventilation holes 220a are arranged symmetrically with respect to the straight line 21c.

[0038] Multiple elongated, rectangular ventilation holes 220b are formed adjacent to the upper and lower long sides of the rod-shaped portion 210 of the arrow indicator portion 21, and each hole has an opening in the longitudinal and transverse directions. The rectangular ventilation holes 220b are located in the region of the arrow indicator portion 21 from the starting point 21a to the ending point 21b.

[0039] The rectangular ventilation holes 220b are positioned with their longitudinal direction horizontal and their transverse direction vertical. Specifically, the rectangular ventilation holes 220b are trapezoidal, with opposite parallel sides in the transverse direction aligned approximately in the height direction of the display unit 2, and one side of each opposite non-parallel longitudinal side aligned along the upper and lower longitudinal sides of the rod-shaped portion 210.

[0040] Since the rod-shaped portion 210 gradually thickens to a similar degree from the starting point 21a to the ending point 21b, the rectangular ventilation holes 220b are arranged in a radial row from the starting point 21a to the ending point 21b. Specifically, the rectangular ventilation holes 220b are arranged in a row of three, with two such rows forming a radial pattern from the starting point 21a to the ending point 21b. The rectangular ventilation holes 220b are arranged in a radial row from the starting point 21a to the ending point 21b, with the longitudinal direction of the opening facing outwards.

[0041] These rectangular ventilation holes 220b correspond to the radially arranged ventilation holes of the present invention. Furthermore, these rectangular ventilation holes 220b correspond to the long and short ventilation holes of the present invention, and to the radially long ventilation holes of the present invention.

[0042] The rectangular ventilation holes 220b arranged along the upper long side of the rod-shaped portion 210 and the rectangular ventilation holes 220b arranged along the lower long side of the rod-shaped portion 210 are positioned symmetrically with respect to the straight line 21c.

[0043] Furthermore, the rectangular ventilation holes 220b are arranged in a row such that the dimensions of the longitudinal openings gradually increase from the starting point 21a to the ending point 21b of the arrow indicator section 21.

[0044] The ventilation holes 220c other than the ventilation holes 220a and 220b are diamond-shaped ventilation holes 220c arranged in a radial row from the starting point 21a to the ending point 21b of the arrow indicator section 21.

[0045] The diamond-shaped ventilation holes 220c are located in the area extending from the starting point 21a to the ending point 21b of the arrow indicator section 21. The rhomboid ventilation opening 220c has an opening shape that includes diagonals in the longitudinal direction and diagonals in the transverse direction.

[0046] In this embodiment, the rhombus-shaped ventilation holes 220c are arranged such that the diagonals in the longitudinal direction are aligned along lines that form a radial pattern, and the diagonals in the transverse direction are aligned vertically to emphasize the radial pattern and make the arrows more prominent. The diagonals in the longitudinal and transverse directions are not perfectly perpendicular, so it is not a perfect rhombus (it is a so-called parallelogram), but it may be a perfect rhombus. If it is a perfect rhombus, the diagonals in the longitudinal direction may be aligned along lines that form a radial pattern.

[0047] The diamond-shaped ventilation holes 220c are positioned to form a radial row that is even further outward than the radial row of square ventilation holes 220b.

[0048] Multiple diamond-shaped ventilation holes 220c are arranged in rows along a radial line extending from the starting point 21a to the ending point 21b of the arrow indicator section 21.

[0049] Specifically, on one side (upper side) of the straight line 21c, the diamond-shaped ventilation holes 220c are arranged from the starting point 21a towards the ending point 21b, with five in the first row (the fifth being on the end point 21b side of the protruding section 211), six in the second row (the sixth being on the end point 21b side of the protruding section 211), five in the third row, and four in the fourth row, forming four radial lines.

[0050] Furthermore, on one side (upper side) of the straight line 21c, a diamond-shaped ventilation hole 220c1 is positioned on the radial line formed between the first row and the second row, on the side of the endpoint 21b from the fifth of the first row and the sixth of the second row, and a diamond-shaped ventilation hole 220c2 is also positioned on the radial line formed between the first row and the straight line 21c, on the side of the endpoint 21b from the fifth of the first row.

[0051] The diamond-shaped ventilation holes 220c (including 220c1 and 220c2) on the other side (lower side) of the straight line 21c are arranged symmetrically with respect to the straight line 21c, except for the fourth row, with respect to the diamond-shaped ventilation holes 220c (including 220c1 and 220c2) on the one side (upper side) of the straight line 21c. On the other side (lower side) of the straight line 21c, the fourth row of the diamond-shaped ventilation holes 220c consists of two holes.

[0052] Furthermore, the diamond-shaped ventilation holes 220c are arranged in a row such that the dimensions of the openings in the longitudinal and transverse directions gradually increase from the starting point 21a to the ending point 21b of the arrow indicator section 21.

[0053] These diamond-shaped ventilation holes 220c (including 220c1 and 220c2) correspond to the radially arranged ventilation holes of the present invention. Furthermore, these diamond-shaped ventilation holes 220c (including 220c1 and 220c2) correspond to the long and short ventilation holes of the present invention, and to the radially long ventilation holes of the present invention.

[0054] Since multiple ventilation holes 220 are provided in the ventilation hole arrangement area 22, the display device 1 is less likely to move or tip over due to strong winds, and is highly stable. The arrow sign section 21 is shaped to become thicker from the starting point 21a to the ending point 21b, which emphasizes the direction indicated by the arrow sign section 21 and makes it easier to attract the attention of pedestrians and drivers.

[0055] The rectangular ventilation holes 220b and the diamond-shaped ventilation holes 220c are arranged in a radial pattern from the starting point 21a to the ending point 21b of the arrow indicator section 21, with their longitudinal directions facing the window and gradually increasing in size. As a result, the direction indicated by the arrow indicator section 21 is further emphasized by the other ventilation holes 220c, making it even more clearly visible.

[0056] [Second Embodiment] Referring to Figure 4, a second embodiment of the present invention is shown. Note that the same parts as in the first embodiment will not be described, and only the differences will be explained. Figure 4 is a front view of a display device showing a second embodiment.

[0057] In the second embodiment, the difference from the first embodiment is that the rhomboid ventilation holes 220c are changed to elliptical ventilation holes 220d, which have an opening shape that has both a longitudinal and a transverse direction.

[0058] The elliptical ventilation holes 220d are located in the region extending from the starting point 21a to the ending point 21b of the arrow indicator section 21. The elliptical ventilation opening 220d has an opening shape with a major axis in the longitudinal direction and a minor axis in the transverse direction.

[0059] In this embodiment, the elliptical ventilation holes 220d have their major axes aligned along lines forming a radial pattern, and their minor axes are positioned vertically to emphasize the radial pattern and make the arrows more prominent. The major and minor axes are not perfectly perpendicular, so it is not a perfect ellipse (it is a deformed ellipse with the direction of the minor axis changed), but it may be a perfect ellipse. If it is a perfect ellipse, the major axis may be aligned along lines forming a radial pattern.

[0060] The elliptical ventilation holes 220d, like the diamond-shaped ventilation holes 220c in the first embodiment, are arranged in rows along a line that forms a radial pattern from the starting point 21a to the ending point 21b of the arrow indicator section 21.

[0061] Similar to the diamond-shaped ventilation holes 220c1 in the first embodiment, elliptical ventilation holes 220d1 and similar to the diamond-shaped ventilation holes 220c2 in the first embodiment are arranged.

[0062] Furthermore, the elliptical ventilation holes 220d are arranged in a row such that the dimensions of the major and minor axes of the openings, i.e., the dimensions of the openings in the longitudinal and transverse directions, gradually increase from the starting point 21a to the ending point 21b of the arrow indicator section 21.

[0063] These elliptical ventilation holes 220d (including 220d1 and 220d2) correspond to the radially arranged ventilation holes of the present invention. Furthermore, these elliptical ventilation holes 220d (including 220d1 and 220d2) correspond to the long and short ventilation holes of the present invention, and to the radially long ventilation holes of the present invention.

[0064] [Third Embodiment] A third embodiment will be described with reference to Figure 5. The same parts as those in the first and second embodiments will not be described.

[0065] In the third embodiment, the arrow indicator section 21 is colored (gradient) so that it becomes lighter from the starting point 21a to the ending point 21b, and a strong sense of dynamism is expressed as if it is leaping out from the starting point 21a to the ending point 21b.

[0066] The fluorescent stripe 212 is not provided inside the contour 21d of the arrow indicator section 21, and a ventilation hole-free region 23 is formed with a certain width surrounding the outside of the contour 21d, where ventilation holes 220 are not provided.

[0067] All of the ventilation holes 220 are elliptical, but in the areas 23 where no ventilation holes are located around the arrow indicator section 21, the elliptical opening shape of the ventilation holes 220 is partially cut out. As a result, the outline 21d of the arrow indicator section 21 surrounded by the area 23 where no ventilation holes are located becomes clearer.

[0068] Multiple ventilation holes 220 are arranged in rows along a radial line that extends from the starting point 21a to the ending point 21b of the arrow indicator section 21.

[0069] Specifically, on one side (upper side) of the straight line 21c, the ventilation holes 220 are arranged from the starting point 21a towards the ending point 21b, with 10 holes in the first row (the 9th and 10th are on the ending point 21b side of the protruding section 211), 10 holes in the second row (the 9th and 10th are on the ending point 21b side of the protruding section 211), 11 holes in the third row (the 9th to 11th are on the ending point 21b side of the protruding section 211), 11 holes in the fourth row (the 9th to 11th are on the ending point 21b side of the protruding section 211), 9 holes in the fifth row (the 9th is on the ending point 21b side of the protruding section 211), and 8 holes in the sixth row, forming six radial lines.

[0070] The ventilation holes 220 on the other side (lower side) of the straight line 21c are arranged symmetrically with respect to the straight line 21c with respect to the ventilation holes 220 on the one side (upper side) of the straight line 21c.

[0071] The ventilation holes 220 are formed in the area of ​​the display section 2 that extends from the starting point 21a of the arrow indicator section 21 to the area beyond the ending point 21b. In this embodiment, the ventilation hole 220 is formed from the starting point 21a, but it may also be formed from an area outside the starting point 21a.

[0072] In this embodiment, similar to the elliptical ventilation holes 220d in the second embodiment, the major and minor dimensions of the openings, i.e., the dimensions of the openings in the longitudinal and transverse directions, are arranged in a row such that they gradually increase from the starting point 21a to the ending point 21b of the arrow indicator section 21. However, the elliptical shape of the ventilation hole 220 closest to the starting point 21a is arranged to be close to a circular shape. Alternatively, the opening of the ventilation hole 220 closest to the starting point 21a may be made circular, and the shape may gradually become an ellipse towards the ending point 21b.

[0073] In this embodiment, unlike in the first and second embodiments, the display unit 2 is not provided with a handle hole 20, but of course, it is possible to form one.

[0074] [Fourth Embodiment] A fourth embodiment of the present invention will be described with reference to Figure 6. Note that the same parts as in the first to third embodiments will be omitted from the explanation, and the differences will be explained primarily.

[0075] In the fourth embodiment, the arrow indicator section 21 comprises an arrow body section 213 having a rod-shaped section 210 and an overhanging section 211, a first direction support section 214 formed at a slight distance from the tip of the overhanging section 211 of the arrow body section 213, and a second direction support section 215 formed at a slight distance from the tip of the first direction support section 214.

[0076] The first directional support portion 214 has a shape similar to the protruding portion 211 of the arrow body portion 213, but is larger, and is a mountain shape that is positioned parallel to the tip edge of the protruding portion 211 of the arrow body portion 213 at a distance.

[0077] The second directional support portion 215 has a similar shape to the first directional support portion 214, but is larger, and is a V-shaped structure positioned parallel to the tip edge of the first directional support portion 214 at a distance.

[0078] The first direction support portion 214 and the second direction support portion 215 point in the same direction as indicated by the arrow body portion 213, and the tip of the second direction support portion 215 becomes the endpoint 21b of the arrow indicator portion 21.

[0079] Similar to the third embodiment, the arrow indicator section 21 is colored (gradient) so that it gradually becomes darker from a lighter state from the starting point 21a to the ending point 21b.

[0080] All of the ventilation holes 220 are diamond-shaped, but rows of larger ventilation holes 220 and rows of smaller ventilation holes 220 are arranged alternately in a radial pattern. The ventilation holes 220 in each row are arranged such that their dimensions in the longitudinal and transverse directions gradually increase from the starting point 21a to the ending point 21b of the arrow indicator section 21, and the ratio of the longitudinal dimension to the transverse dimension gradually increases. In other words, the ventilation holes 220 become progressively narrower as they move from the starting point 21a to the ending point 21b of the arrow indicator section 21.

[0081] In this embodiment, the direction indicated by the arrow indicator 21 is emphasized by the shape of the arrow indicator 21 and the changes in the size and shape of the ventilation holes 220.

[0082] [Other variations] The present invention is not limited to the embodiments described above. For example, the following are also included.

[0083] In this embodiment, the arrow indicator 21 was designed to prompt the viewer to move to the left, but the direction of the prompt could be any direction.

[0084] In this embodiment, the ventilation holes arranged in radial rows have a shape with a longitudinal direction and a transverse direction, but they may also be circles, squares, or the like, without distinction between longitudinal and transverse directions.

[0085] In this embodiment, the ventilation holes arranged in a radial pattern are arranged in a shape that gradually increases in size radially from the starting point to the ending point of the arrow indicator. However, ventilation holes of the same shape can also be arranged in a radial pattern. Alternatively, the radial pattern can be made up of ventilation holes of different shapes, such as alternating between diamond-shaped and elliptical ventilation holes. Furthermore, the radial straight line 21c can be made different, for example, by arranging the first row of diamond-shaped ventilation holes and the second row of elliptical ventilation holes.

[0086] In the first and second embodiments, the ventilation holes arranged in radial rows are located in the region extending from the starting point to the ending point of the arrow indicator section, while in the third and fourth embodiments, they are located in the region extending beyond the starting point to the ending point of the arrow indicator section. However, they may also be located in only a portion of the region extending from the starting point to the ending point of the arrow indicator section.

[0087] In this embodiment, the two display units are joined in a V-shape when viewed from the side, so that they expand from one long side to the other long side. However, the two display units may be pivotally attached to one long side so that they can rotate, and can be opened and closed between a V-shape open state and an overlapping state.

[0088] In the first and second embodiments, handle holes are provided at both ends of the display section, but they can also be provided at only one end.

[0089] Each technical aspect of any embodiment may be applied to other embodiments to form examples. [Explanation of Symbols]

[0090] 1 Display device 2 Display section 20 handle holes 21 Arrow Sign Section 21a Starting point 21b Terminus 21c A straight line passing through the starting point and the ending point. 21d contour 210 Rod-shaped part 211 Overhang 212 Fluorescent lines 213 Arrow body 214 First direction support part 215 Second direction support part 22 Ventilation hole arrangement area 220 Ventilation hole 23 Area without ventilation holes 3 Connecting members 30 Gripping hole

Claims

1. A display device comprising a display unit having an arrow indicator section that indicates the direction from a starting point to an ending point, and a ventilation hole arrangement area section that is outside the contour of the arrow indicator section and where a plurality of ventilation holes are arranged, The ventilation hole arrangement area is located from one side to the other of a straight line passing through the starting point and ending point of the arrow indicator section. The plurality of ventilation holes include radially arranged ventilation holes that are arranged in a radial pattern from the starting point to the ending point of the arrow indicator. A display device characterized by the following features.

2. The display device according to claim 1, characterized in that the arrow indicator portion has a shape that becomes thicker from the starting point to the ending point.

3. The aforementioned radially arranged ventilation holes include long and short shaped ventilation holes with openings having a longitudinal direction and a short direction. The aforementioned elongated ventilation holes include radially elongated ventilation holes arranged in a row, radiating outwards from the starting point to the ending point of the arrow indicator, with the longitudinal direction of the opening facing outwards. The display device according to claim 1 or 2.

4. The aforementioned radially elongated ventilation holes are equipped with diamond-shaped ventilation holes. The display device according to feature 3.

5. The aforementioned radially elongated ventilation holes include elliptical ventilation holes. The display device according to feature 3.

6. The radially elongated ventilation holes are arranged in a row such that at least one of the longitudinal and transverse directions of the opening shape gradually increases radially from the starting point to the ending point of the arrow indicator. The display device according to feature 3.

7. The display device according to claim 1 or 2, characterized in that a fluorescent strip is formed inside the contour of the arrow marking portion, along the contour.

8. The display device according to claim 1 or 2, characterized in that a handle hole is formed at the end of the display portion, and the handle hole has a shape that is curved inwardly convex.

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