JP6503598B2 - LED device for internally illuminated road cone - Google Patents

Description

  The present invention relates to an internally-illuminated load cone LED device.

  When construction is performed on the road at night, it is required to clearly indicate the construction location and install security lights etc. that warn the passing vehicles and pedestrians. In particular, in nighttime construction on expressways, since the traveling speed of the vehicle is fast, a prompt and accurate warning to drivers in distant places is required, and a security light with high visibility even in the dark is required.

  In response to such a demand, conventionally, an incandescent lamp as a light source is accommodated inside a triangular cone-shaped load cone generally used at a construction site etc., and the road cone is illuminated from the inside by night illumination. An internally illuminated security light with improved visibility has been proposed (see Patent Document 1).

Japanese Patent Application Laid-Open No. 11-107228

  However, in the internally illuminated security light disclosed in Patent Document 1, the lower directivity of the incandescent lamp mainly illuminates the middle to lower end portions of the load cone rather than the upper end portion of the load cone, so the entire load cone is brightly illuminated. It is difficult. In addition, since internally illuminated security lights are mainly used on the road, they may be hit by vehicles. In particular, when the vehicle collides on a freeway, not only the light source is broken but also secondary damage due to the scattering of the light source may occur because the traveling speed of the vehicle is high, which is a problem.

  An object of the present invention is to provide a technique capable of ensuring high visibility at night and preventing breakage and scattering of a light source even when the vehicle is collided.

The LED for an internally-illuminated load cone according to the present invention is an LED device for an internally-illuminated load cone which is placed on the ground in a state housed inside the load cone and illuminates the load cone from the inside, And a power supply unit for supplying power to the LED, and a frame having the LED light emission unit and the power supply unit housed inside , at least an upper surface of which is open, and a side surface of the frame And a battery housed in the frame. The cover member and the lower end portion has an upper surface and a body portion connecting the lower end and top, the cover member, viewed in cross section, the upper surface is shorter than the lower end, the body portion from the lower end It has a tapered shape toward the upper surface, and is formed in a mortar shape that draws an arc inside in cross sectional view . The power supply unit uses the power of the battery as a power source.

  According to the present invention, by illuminating the load cone from the inside with the LED light, high visibility at night can be ensured. Further, since the light source is covered with a frame and the frame is covered with a cover member having a tapered side surface extending from the lower end to the upper end, damage and scattering of the light source can be prevented even in the case of collision with a vehicle. be able to.

FIG. 1 is a diagram for explaining the LED device of the first embodiment. FIG. 2 is a side view and a side cross-sectional view of the LED device of the first embodiment. FIG. 3 is a diagram for explaining an LED light emitting device. FIG. 4 is a circuit configuration diagram for explaining the electronic circuit unit. FIG. 5 is a view for explaining the structure of the frame. FIG. 6 is a view for explaining the shape of the cable fixing member. FIG. 7 is a view for explaining the shape of the cover member. FIG. 8 is a view for explaining a seal structure between the frame and the metal plate according to the second embodiment. FIG. 9 is a diagram for explaining the LED device of the third embodiment. FIG. 10 is a view for explaining a modification of the cable fixing member.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings and the like.

-1st Embodiment-
FIG. 1A is a perspective view of the internally-illuminated load cone LED device 100 according to the first embodiment (hereinafter simply referred to as the LED device 100) as viewed obliquely from above. FIG. 1B is a diagram for explaining an embodiment of the LED device 100. As shown in FIG.

  In the appearance of the LED device 100 according to this embodiment shown in FIG. 1A, the cover member 1, the metal plate 2, the transparent plate 3, and the electronic circuit unit 9 (not shown) housed inside the cover member 1. And the insertion hole 4 for inserting the power supply cable 12 (not shown) for supplying electric power to.

  As shown in FIG. 1, the cover member 1 of the present embodiment has a mortar shape in which the diameter of the upper end is smaller than the diameter of the lower end, and the side surface has a slope from the lower end to the upper end. By making the external shape of the LED device 100 into such a shape, the LED device 100 does not scatter even when it collides with a vehicle or when it is stepped on a tire. Details of the cover member 1 which is a feature of the present invention will be described later.

  In addition, the electronic circuit unit 9 housed inside the cover member 1 includes a light emitting diode 10 (light emitting diode: LED, hereinafter, simply referred to as LED 10), and the LED light from the LED 10 uses the transparent plate 3 It passes through and is emitted upward. Therefore, as shown in FIG. 1 (b), simply by placing the LED device 100 on a road or the like near the construction site and placing the load cone 200 on the LED device 100 so as to accommodate the LED device 100. , The road cone can be brightly illuminated from the inside. As a result, the load cone and the LED device 100 can be integrated to realize a function as an internally illuminated security light for night work that warns the driver of a passing vehicle.

  Fig.2 (a) is the side view which looked at the penetration hole 4 as the front, and FIG.2 (b) is the AA sectional drawing of the LED apparatus 100 of this embodiment.

  As shown in FIG. 2B, the LED device 100 according to the present embodiment includes the metal plates 2 and 6, the transparent plate 3, the frame 5, and the cable fixing member 7 inside the cover member 1. Prepare. Further, the frame 5 is provided with an insertion hole 8 for inserting the power cable 12. The insertion hole 8 is formed at a position which can penetrate to the inside of the frame 5 continuously to the insertion hole 4 for inserting the power cable 12 formed in the cover member 1. The above-described configuration (hereinafter, the above-described configurations are collectively referred to as the LED light emitting unit 50) provided inside the cover member 1 is as shown in FIG.

  FIG. 3 is a perspective view of the LED light emitting unit 50 as viewed obliquely from above. The LED light emitting unit 50 covers the lower part of the frame 5, the transparent plate 3 arranged to cover the upper part of the frame 5, the metal plate 2 arranged on the transparent plate 3, and the lower part of the frame 5. It is comprised from the metal plate 6 arrange | positioned, the penetration hole 8 formed in the frame 5 side surface, and the cable fixing member 7 screwed in the position which overlaps with the penetration hole 8. And the electronic circuit part 9 which comprises the light source of the LED apparatus 100 of this embodiment in the inside of the frame 5 is accommodated.

  FIG. 4 is a circuit configuration diagram for explaining the electronic circuit unit 9 provided in the LED device 100. The electronic circuit unit 9 of the present embodiment includes an LED light emitting unit 40 including the LED 10, a DC / DC converter 11, and a power cable 12.

  The DC / DC converter 11 is mounted on an electronic substrate to configure a power supply circuit, and functions as a power supply unit that supplies power to the LED 10. The DC (direct current) 24 V or other direct current voltage is input to the DC / DC converter 11 from the outside of the LED device 100 through the power cable 12. Then, the input DC voltage is transformed to an appropriate voltage value required for the light emission of the LED 10, and the converted voltage is output to the LED 10.

  The power supply cable 12 supplies a DC voltage from an external power supply (AC / DC power supply 13) described below to the DC / DC converter 11. One end of the power supply cable 12 passes through the insertion hole 4 formed in the cover member 1, the hole provided in the cable fixing member 7, and the insertion hole 8 formed in the frame 5, and the inside of the frame 5 Are connected to the input terminal of the DC / DC converter 11 housed in the The other end has a general power plug for connection to an outlet and can be connected to an AC / DC power supply 13.

  Incidentally, in the electronic circuit section 9, the power plug is erroneously directly connected to a commercial AC power source etc. in the previous stage of the input terminal of the DC / DC converter 11, and a voltage or current of the maximum rating or higher is input. In order to prevent this, a protective circuit may be provided that shuts off the power supply above the rated level. The protection circuit is configured of, for example, a fuse or the like.

  The AC / DC power supply 13 has a function of converting an AC voltage into a DC voltage, converts 100 V AC (AC) from a commercial power source into 24 V DC or another DC voltage, and supplies it to the power cable 12. The AC / DC power supply 13 is, for example, a cord reel generally used in a construction site or the like, an AC adapter or the like.

  The LED 10 is, for example, at least one or more high-brightness red LEDs, and is disposed such that its light emitting surface faces upward. Alternatively, in the case where the LED 10 is used as a light source by combining the LED 10 and a lens, a reflecting mirror or the like, the light emitting surface is arranged to face upward. Further, the light emitting surface or the light emitting surface of the LED 10 is disposed substantially at the center of the frame 5. Therefore, the LED light from the LED 10 is transmitted through the transparent plate 3 and emitted through the opening provided at the center of the metal plate 2 to the upper side of the LED device 100.

  The LED light emitted upward of the LED device 100 illuminates the inside of a load cone placed on the LED device 100. A general load cone has a triangular pyramid shape and narrows toward the top, so the LED light emitted right above the LED device 100 directly illuminates the top of the load cone and has a slope. Diffusely reflect the inner wall of the road cone. Therefore, the LED device 100 can illuminate the entire load cone brightly by the direct light emitted from the LED 10 and diffuse reflection. Further, by combining an optical lens having a light diffusion function, the entire load cone can be illuminated more evenly and brightly.

  As above, regarding the configuration of the LED device 100 according to the present embodiment, in particular, the electrically functional part has been described. Subsequently, structural features of the LED device 100 according to the present embodiment will be described in detail with reference to the drawings and the like.

  It has been described above that the electronic circuit unit 9 is accommodated inside the frame 5 shown in FIG. Below, the detail of each structure with which the LED light-emitting device 50 is provided is demonstrated.

  FIG. 5 is a perspective view of the frame 5 as viewed obliquely from above. As shown in the figure, the frame 5 has a cylindrical shape, and by being covered up and down by the transparent plate 3 and the metal plate 6, a space portion for housing the electronic circuit portion 9 is formed. The power supply cable 12 is inserted into the insertion hole 8 formed on the side surface of the frame 5 and connected to the electronic circuit unit 9 accommodated inside the frame 5. Further, the holes formed on both sides of the insertion hole 8 are screw holes for fixing the cable fixing member 7 to the frame 5 by screws. The details of the cable fixing member 7 will be described later.

  The frame 5 is formed of a metal such as aluminum. Since the frame 5 of the present embodiment is a special frame of 2.5 mm in thickness made by aluminum extrusion molding, it has high mechanical strength excellent in load resistance and impact resistance characteristics. By housing the electronic circuit unit 9 inside such a frame 5, the electric circuit unit housed inside even if the LED device 100 collides with a vehicle or when it is rolled up by a tire. 9 can be protected to prevent the LED device 100 from being damaged.

  Returning to FIG. 3, the description will be continued. The transparent plate 3 is disposed on the upper portion of the frame 5 and seals the frame 5 together with a metal plate 6 described later to form a space for housing the electronic circuit portion 9. The transparent plate 3 is formed of a material capable of transmitting LED light, such as transparent plastic. Furthermore, by using a material having excellent impact resistance such as reinforced plastic, the protective function for the electronic circuit portion 9 housed inside can be further enhanced. The transparent plate 3 is not limited to colorless and transparent, and may be red or the like as long as it can transmit light.

  The metal plate 2 is disposed on the transparent plate 3. Further, at the central portion of the metal plate 2, an opening capable of emitting the LED light from the electronic circuit unit 9 accommodated inside is formed. Further, the metal plate 2 is provided with holes through which screws can be inserted at appropriate intervals in the peripheral portion of the metal plate 2, and the transparent plate 3 provided with similar holes from the top surface of the metal surface 2 is It is fixed to the upper surface of the frame 5 together with the transparent plate 3 by being screwed into a screw hole provided on the upper end surface of the frame 5 via the interposition. By covering the upper surface of the LED light emitting unit 50 with the metal plate 2 in this manner, the impact resistance of the LED light emitting unit 50 can be improved, and the protection function for the electronic circuit unit 9 housed inside can be further enhanced.

  The metal plate 6 is disposed to cover the lower surface of the frame 5 from the lower side. The metal plate 6 is provided with holes through which screws can be inserted at appropriate intervals in the vicinity of the peripheral portion of the metal plate 6, and screws are inserted from the lower surface of the metal plate 6. The internal space of the frame 5 is sealed with the above-mentioned metal plate 2 and the transparent plate 3 by screwing into the screw holes.

  Further, the electronic circuit portion 9 accommodated in the internal space of the frame 5 is mounted on the metal plate 6 directly or via a heat sink or the like. For this reason, the metal plate 6 functions as a radiator which absorbs the heat generated from the electronic circuit unit 9 and radiates it to the outside together with the frame 5 formed of aluminum.

  Next, the cable fixing member 7 will be described.

  In an electrical device in which the power cable is directly connected to the board etc., a load is applied to the connection between the electrical device and the power cable by pulling the power cable, and the cable is pulled out by damage or the like at the connection. There are times when For this reason, generally, the cable and the electric device are fixed by using a wire fixing member called a so-called cable clamp which fixes the power cable and the substrate or casing of the electric device at the front stage of the connection portion. There is no direct load on the connection.

  However, the conventional wiring fixing member has a constant arc portion covering the cable and a flat portion having screw holes formed on both sides of the arc upper portion for fixing the fixing member to a substrate or the like. Because it has a band-like shape with a width of, it requires a corresponding space for fixing the wiring. In particular, since a width corresponding to a cable and a horizontal portion in the electric device is required, it may be difficult to secure such a width from the viewpoint of downsizing and design of the electric device, which is a problem.

  The cable fixing member 7 in the present embodiment solves such a problem and can securely fix the cable in a small space. Hereinafter, description will be made with reference to FIG.

  FIG. 6 is a view for explaining the shape of the cable fixing member 7. The cable fixing member 7 in the state of being fixed to the frame 5 is as shown in FIG. 3 and FIG. 2 (b) (however, the power cable 12 is not shown).

  The cable fixing member 7 includes a plate member 20 having a hole 20h through which the power supply cable 12 can be inserted, and a plate 21 having a hole 21h through which the power supply cable 12 can be inserted. Further, in the plate members 20 and 21, holes a and b are formed on both sides of the holes 20h and 21h, respectively, for inserting the screws through the plate members 20 and 21.

  The opening area of the holes 20 h and 21 h is larger than the cross-sectional area of the power supply cable 12, and is an area through which the power supply cable 12 can be inserted without difficulty. In the cable fixing member 7 of the present embodiment, the holes 20 h and 21 h are circular and both have the same diameter. Moreover, the external shape of the plate members 20 and 21 is the same rectangular shape.

  However, the positions of the holes 20 h and 21 h in the plate members 20 and 21 are offset from each other. As shown in FIG. 6, the holes 20 h and 21 h of the present embodiment are formed with an offset in the vertical direction (short direction) of the plate members 20 and 21. On the other hand, the holes a and b through which screws can be inserted are the same position so that the holes a and b penetrate without being displaced when the plate members 20 and 21 are overlapped to match the outer shape. Is formed.

  The fixing method of the power supply cable 12 by the cable fixing member 7 will be described. First, the power supply cable 12 is continuously inserted into the holes 20 h and 21 h and inserted into the insertion holes 8 formed on the side surface of the frame 5. In this state, the plate members 20 and 21 are overlapped and pressed against the side surface of the frame 5, and screws are screwed into the screw holes formed on both sides of the insertion hole 8 of the frame 5 through the holes a and b. As a result, the cable fixing member 7 is fixed to the frame 5 with the plate members 20 and 21 being tightened together so that their outer shapes are aligned on the basis of the positions of the holes a and b.

  Then, as described above, since the positions of the holes 20h and 21h have offsets with each other, the inner diameter portions of the holes 20h and 21h bite into each other in the coating of the power supply cable 12 by the offset. The shear force by the plate members 20 and 21 acts on it. The power supply cable 12 is firmly fixed to the frame 5 by the shear force given by the cable fixing member 7.

  The offset amount (displacement width) between the holes 20 h and 21 h is the opening area of the power cable 12 which penetrates the holes 20 h and 21 h when the plate members 20 and 21 are overlapped and fastened together. It is set in accordance with the coating thickness of the power supply cable 12 or the material of the coating, assuming that the cross-sectional area does not exceed. Specifically, when the cable is fixed by the cable fixing member 7, the inner diameter portions of the holes 20h and 21h bite into the coating of the power supply cable 12, and this bite damages the coating of the power supply cable 12 and the strength of the coating Is set so as not to drop excessively.

  The details of the structure of the LED light emitting unit 50 have been described above. The LED device 100 of the present embodiment is formed by covering the LED light emitting unit 50 with the cover member 1 described below. Hereinafter, the details of the cover member 1 characteristic of the present invention will be described with reference to FIG.

  FIG. 7A is a plan view of the LED device 100 according to this embodiment as viewed from above. FIG.7 (b) is EE sectional drawing of Fig.7 (a). FIG. 7C is a plan view of the LED device 100 according to this embodiment as viewed from below.

  As can be seen from FIGS. 7A to 7C, the inner side of the cover member 1 has a cylindrical shape in which the LED light emitting unit 50 can be stored.

  The outer diameter of the cover member 1 is formed such that the diameter on the upper end side is smaller than the diameter on the lower end side, and the outer side surface of the cover member 1 has a tapered shape in which the diameter decreases from the lower end toward the upper end.

  As described with reference to FIGS. 7B and 2A, the side surface of the cover member 1 has a substantially trapezoidal shape, and the upper base is shorter than the lower base. The side shape of the cover member corresponding to the trapezoidal leg has a mortar shape that draws an arc on the inner diameter side.

  Since the side surface of the cover member 1 has a mortar shape, when the LED device 100 is rolled on a vehicle, the tire is easily mounted, and the load applied to the cover member 1 from the tire mainly acts downward. In addition, even if the cover member 1 is deformed by the load from the tire, there is no bending that causes the cover member 1 to repel itself due to elastic deformation accompanying reaction when the load is removed. Therefore, even when the LED device 100 is covered by the vehicle, the LED device 100 does not scatter.

  Moreover, the cover member 1 is formed of rubber. By forming the cover member 1 of such a material with a high elastic limit, it is possible to ensure high impact resistance characteristics of the LED device 100.

  As described above, in the LED device 100 according to the present embodiment, the cover member 1 is made of a rubber material, and the diameter of the lower end is formed in a mortar shape larger than the diameter of the upper end. A frame 5 is provided, in which an electronic circuit unit 9 as a light source is accommodated. Thereby, even if it collides with a vehicle or is scolded by a vehicle, breakage and scattering of the LED device 100 can be prevented.

  As described above, the internally-illuminated load cone LED device according to the first embodiment is mounted on the ground in a state of being housed inside the load cone 200, and illuminates the load cone 200 from the inside from the inside. 100, including an LED light emitting unit 40 having an LED 10 with the light emitting surface directed upward, a DC / DC converter 11 (power supply unit) for supplying power to the LED, an LED light emitting unit 40 and a power supply unit; And a cover member 1 covering a side surface of the frame 5 at least the top surface of which is open. The cover member 1 has a lower end portion, an upper end portion, and a main body portion connecting the lower end portion and the upper end portion, the upper end portion of the cover member 1 is formed shorter than the lower end portion in a cross sectional view The (body portion) is formed in a tapered shape from the lower end to the upper end.

  Thereby, even if the LED device 100 collides with the vehicle or is turned into the vehicle, the frame 5 and the cover member 1 protect the LED light emitting unit 40 and the power supply unit, and the shape of the cover member 1 Since the load applied from the vehicle to the cover member 1 is mainly applied downward, damage and scattering of the LED device 100 can be prevented.

  Further, the LED device 100 for an internally illuminated load cone according to the present embodiment is formed in a mortar shape in which the side surface (body portion) of the cover member 1 draws an arc inside in a cross sectional view. Thus, even when the LED device 100 is covered by the vehicle, the load applied to the cover member 1 from the vehicle is further applied downward, so the LED device 100 does not scatter.

  Further, according to the internally-illuminated load cone LED device 100 of the present embodiment, the DC / DC converter 11 uses power externally input through the power cable 12 as a power source, and the frame 5 and the cover member 1 The power supply cable 12 has insertion holes 4 and 8 for inserting the DC / DC converter 11 from the outside. As a result, the connection between the power cable 12 and the DC / DC converter 11 is accommodated inside the frame 5 and the cover member 1, so that the LED device 100 collides with the vehicle or is looked up by the vehicle. In particular, damage around the power supply circuit of the LED device 100 can be prevented.

  Further, the internally-illuminated load cone LED device 100 according to the present embodiment includes the cable fixing member 7 for fixing the power cable 12 to the frame 5, and the cable fixing member 7 has a hole 20h through which the power cable 12 can be inserted. And the plate member 21 having the hole 21 h through which the power cable 12 can be inserted. The cable fixing member 7 fixes the hole 20 h and the hole 21 h to the frame 5. In this case, the opening area passing through the hole 20 h and the hole 21 h is formed so as to be equal to or less than the cross-sectional area of the power cable 12. As a result, the power cable 12 can be firmly fixed to the frame 5 in a small space of about the plate thickness of the plate members 20 and 21.

  Moreover, according to the LED device 100 of the present embodiment, the frame 5 is formed of metal, and the cover member 1 is formed of rubber. Thereby, the high impact resistance of the LED device 100 can be secured.

-Second embodiment-
The LED device 100 according to the second embodiment has a structure in which the electronic circuit unit 9 is completely sealed inside the frame 5 from the viewpoint of dustproofness and waterproofness.

  Specifically, in the LED device 100 according to the second embodiment, between the transparent plate 3 and the frame 5, between the cable fixing member 7 and the frame 5, and the metal plate 6 in the first embodiment. The difference is that an O-ring as a seal member is interposed between the frame 5 and the frame 5.

  An O-ring interposed between the transparent plate 3 and the frame 5 is disposed on the inner diameter side of a screw screwed to fix the transparent plate 3 and the frame 5. A groove may be provided in any one of the arrangement positions of the O-ring in the transparent plate 3 or the frame 5, and the O-ring may be attached to the groove. Further, not only the O-ring is disposed on the inner side of the screw position, a soft gasket may be used to simultaneously seal the screwing portion of the screw.

  An O-ring interposed between the cable fixing member 7 and the frame 5 is also disposed closer to the insertion hole 8 than a screw screwed to fix the cable fixing member 7 and the frame 5. A groove may be provided in either of the cable fixing member 7 or the arrangement position of the O-ring in the frame 5, and the O-ring may be attached to the groove. Further, not only the O-ring is disposed on the inner side of the screw position, a soft gasket may be used to simultaneously seal the screwing portion of the screw.

  On the other hand, as described above, the metal plate 6 has a heat radiation function due to the contact between the metal plate 6 and the frame 5. Therefore, in order not to reduce the heat radiation function, the O-ring 14 between the metal plate 6 and the frame 5 is provided in the manner as shown in FIG.

  FIG. 8 is a view for explaining an aspect in which the frame 5 and the metal plate 6 are fixed with the O-ring 14 interposed therebetween. As shown in the figure, the frame 5 is provided with a groove 15 on the inner diameter side of the screwing position. The O-ring 14 is attached to the groove 15. When the O-ring 14 is attached to the groove portion 15 and screwed, the O-ring 14 is compressed in the groove portion 15 and the frame 5 and the metal plate 6 are in contact with each other. Thus, the sealing function by the O-ring 14 can be achieved, and the heat dissipation function by the frame 5 and the metal plate 6 can be secured.

  As described above, according to the LED device of the second embodiment, between the transparent plate 3 and the frame 5, between the cable fixing member 7 and the frame 5, and between the metal plate 6 and the frame 5, An O-ring as a sealing member is provided. Thereby, the waterproof function and the dustproof function of the LED device 100 can be secured.

  Moreover, according to the LED device of the second embodiment, the frame 5 is provided with the groove 15 on the inner diameter side of the screwing position, and the groove 15 is screwed with the O-ring 14 attached to the groove 15. When the O-ring 14 is screwed, the O-ring 14 is compressed in the groove portion 15 and the frame 5 and the metal plate 6 are in contact with each other. Thus, the heat dissipation function by the frame 5 and the metal plate 6 can be provided, and the waterproof function and the dustproof function can be secured.

-Third embodiment-
The internally-illuminated load cone LED device 300 according to the third embodiment (hereinafter simply referred to as the LED device 300) differs from the LED device 100 described above in the aspect of the power cable 12. The power supply cable 12 included in the LED device 300 according to the present embodiment includes a main line 12a having a plug connectable to the AC / DC power supply 13 at one end, and a plurality of branch lines 12b branched from the main line 12a at predetermined intervals. It is a so-called suzuran cable. And the tip of each branch line 12b is equipped with the same composition as LED device 100 explained so far. That is, in the LED device 300 of the present embodiment, a plurality of LED devices 100 are connected in series integrally via the power supply cable 12. A specific aspect of the LED device 300 will be described with reference to FIG.

  FIG. 9 is a diagram for explaining an implementation aspect of the LED device 300 according to the third embodiment. Fig.9 (a) is the figure which looked at the state which actually installed LED device 300 of this embodiment on the street etc. from the side. FIG. 9 (b) is a plan view of FIG. 9 (a) seen from directly above with the load cone 200 removed.

  In the LED device 300 of the present embodiment, a DC voltage is supplied via the power supply cable 12 connected to the AC / DC power supply 13. The power supply cable 12 consists of one trunk line 12a and a plurality of branch lines 12b branched from the trunk line. The length of the trunk line 12a and the branch interval and number of branches of the branch line 12b are appropriately set according to the application. For example, in the present embodiment, assuming use at night construction on an expressway, the length of the trunk line 12a is 100 m, and branch points relating to the branch line 12b are provided every 5 m.

  And the LED apparatus 100 is each connected to each front-end | tip of the said branch line 12b. Then, by simply placing the load cones 200 on the respective LED devices 100, each load cone 200 can be brightly illuminated from the inside. As a result, an LED device 300 is configured in which a plurality of internally illuminated security lights, each of which is a combination of a load cone 200 and the LED device 100, extends over 100 m at intervals of 5 m.

  As described above, according to the LED device of the third embodiment, the power supply cable 12 is a tin run cable having at least two branch lines 12 b, and is an LED light emitting device (light emission Device) and a cover member 1 covering the frame 5 are respectively connected to the tip end portions of the branch lines 12b. As a result, by supplying power from one AC / DC power supply via one power supply cable 12, it is possible to realize the LED device 300 provided with a desired number of internally illuminated security lights in a desired length.

  The present invention is not limited to the above-described embodiment, and various modifications and applications are possible.

  For example, the cable fixing member 7 described with reference to FIG. 6 may be configured as shown in FIG. In the cable fixing member 30 shown in FIG. 10, only one hole a for inserting a screw is formed. The holes 22 h and 23 h through which the power supply cable can be inserted are formed offset from each other as in the cable fixing member 7. The positions of the holes a are only at the upper end sides of the holes 22 h and 23 h in the plate members 22 and 23. When fixing the power supply cable to the frame 5, the plate members 22 and 23 are overlapped in a state where the power supply cable is inserted through the holes 22 h and 23 h and the insertion holes 8 of the frame 5. At the same time, apply a screw through the hole a. In the frame 5 on the upper side of the insertion hole 8 of the frame 5, a screw hole that matches the hole a is formed. The offset amount of the holes 22 h and 23 h is the same as that of the cable fixing member 7, when the plate members 22 and 23 are overlapped and fastened together, the opening area passing through the holes 22 h and 23 h is the power cable 12. It is set to be less than the cross sectional area.

  Then, the cable fixing member 30 is fixed to the frame 5 on the basis of the lower ends of the plate members 22 and 23 whose positions are fixed by being pressed against the metal plate 6 and the position of the hole a. As a result, as with the cable fixing member 7, a shearing force based on the offset amount of the inner diameter portion of the holes 22h and 23h acts on the power supply cable, and the power supply cable and the frame 5 can be firmly fixed. A groove or a projection may be provided on the outer diameter side of the plate fixing position of the metal plate 6 in order to fix the lower ends of the plate members 22 and 23 more reliably. Alternatively, a support portion may be provided at the plate member fixing position of the frame 5 to support the plate member from the lower end, and the support portion may be provided with an accommodation groove in which the lower end of the plate member is accommodated.

  The cable fixing members 7 and 30 are not limited to two plate members, and may be a single plate member provided with a hole through which a cable can be inserted. In this case, the hole formed in the plate member is formed to have a predetermined offset with the insertion hole 8 of the frame 5 when the cable fixing member is fixed to the frame 5. According to the cable fixing member having such a configuration, the cable can be framed by the shear force of the plate member and the inner diameter portion of the insertion hole 8 only by fixing the plate member into which the cable is inserted to the frame 5. It can be fixed to the body 5. In addition, when applying the cable fixing members 7 and 30 to other electric devices, a target for fixing the cable fixing members 7 and 30 is not limited to the frame 5, and a case in which an electronic circuit portion to which a cable is connected is accommodated. It may be a body or the like.

  Moreover, the LED device 100 according to the first and second embodiments does not necessarily have to be supplied with power via the power supply cable 12, and may have a battery capable of driving the LED 10 inside the frame 5. Thereby, the LED device 100 can be operated even in an environment where there is no commercial power source or no generator can be prepared.

  Further, the cover member 1 and the frame 5 are not limited to the cylindrical shape, and may have a bottom surface. Moreover, the shape in the top view of the cover member 1 and the frame 5 is not limited to a circular shape, and may be a polygonal shape.

DESCRIPTION OF SYMBOLS 1 ... Cover member 4, 8 ... Insertion hole 5 ... Frame 7 ... Cable fixing member 9 ... Electronic circuit part (LED light emission part, electric power supply part)
10 ... LED
11: DC / DC converter (power supply unit)
12 ... Power cable (power cable, tin run cable)
12a: branch branch line 20: first plate member 20h: first hole portion 21: second plate member 21 h: second hole portion 40: LED light emitting portion 50: LED light emitting unit (light emitting device)
100, 300 ... LED devices for internally illuminated road cones 200 ... road cones

Claims (2)

In the internally-illuminated load cone LED device mounted on the ground in a state of being housed inside the load cone and illuminating the load cone from the inside,
An LED light emitting unit having an LED whose light emitting surface faces upward;
A power supply that supplies power to the LEDs;
A frame that accommodates the LED light emitting unit and the power supply unit inside and has at least an open upper surface;
A cover member that covers the side surface of the frame;
And a battery housed in the frame.
The cover member has a lower end, an upper surface, and a main body connecting the lower end and the upper surface .
The upper surface of the cover member is formed shorter than the lower end portion in a cross sectional view,
The main body portion has a tapered shape that inclines from the lower end portion to the upper surface, and is formed in a mortar shape that draws an arc inside in a cross sectional view .
The LED light emitting unit is disposed substantially at the center of the frame.
The power supply unit uses the power of the battery as a power supply.
LED device for internally illuminated road cones characterized by The frame is formed of metal,
The cover member is formed of rubber.
The LED device for an internally illuminated road cone according to claim 1 .

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