JP2023041077A - Safety lighting device for attention attraction - Google Patents

Abstract

To provide a safety display lighting device for attention attraction capable of making an approaching vehicle recognize that the vehicle is working from as far as possible in working at night or in a dark place or working on a highway.SOLUTION: A safety display lighting device is provided with a flexible tubular body cover that is made of a material having light transmissivity, is a tubular body having a cross-sectional shape of a major arc, and has a gap space formed between an outer circumferential surface and an inner circumferential surface of the tubular body, and a flexible substrate inserted into the gap space and formed by providing wiring on a sheet-like substrate on which a plurality of LED elements are arranged at predetermined intervals is provided, and both ends of the cylindrical body cover are expanded to detachably fit a pipe in the cavity part of the cylindrical body.SELECTED DRAWING: Figure 1

Description

INDUSTRIAL APPLICABILITY The present invention can be easily attached to and detached from facilities and structures such as safety fences installed at construction sites and work sites, and can visually confirm that workers are working even at night or in dark places. It relates to a warning safety lighting device.

When repairing highway surfaces, inspecting and repairing inner walls of tunnels, or replacing lighting fixtures, traffic guides hold red stick-shaped guide lights in their hands to guide vehicles and regulate lanes. Workers wear light-reflecting sheets to notify approaching vehicles that they are working, thereby preventing accidents during work.

However, the driver's visibility at night or in dark places is much lower than during the day. In addition, when working with an aerial work platform in a tunnel, even if the vehicle body is within the lane restrictions, the aerial work platform may protrude from the lane restrictions due to repairs, etc. In some cases, it may be necessary to perform repair work or the like at the very last minute.

In order to prevent accidents during work at night, in dark places, or on highways, it is necessary to make the vehicle aware that work is being done from as far away as possible. However, depending on the worker's posture and orientation, it may not be possible to obtain a sufficient amount of reflected light with only the light-reflecting sheet worn by the worker, making it difficult for the vehicle to notice that the worker is working from a distance that can avoid a collision. . For this reason, there is a demand for equipment that is bright when viewed from any direction and has excellent visibility from a distance.

The technology described in Patent Document 1 below is a guide light that is used as a lighting means for signaling at nighttime traffic control, construction sites, etc., and has a light source that also serves as a grip and light from the light source. and a light-emitting part attached to the light source part so as to communicate with the light-emitting part, wherein the light-emitting part is composed of a combination of a plurality of long and hollow arc tubes having a frustum shape. Due to the tapered structure, the upper arc tube and the lower arc tube are accommodated in a nested manner, contracted, and connected in an extensible manner. At the time of extension, the bottom of the upper arc tube and the top of the lower arc tube are connected by fitting, so that the extension structure of the light emitting section is maintained, and the light emitting section can be expanded and contracted in the axial direction.

According to the technique described in Patent Document 1 below, it is possible to provide a light-weight and highly portable guide light with a simple structure and an extensible (foldable) light-emitting part while providing sufficient visibility. there is However, the technology described in Patent Document 1 below is a signal light that a traffic guide holds a handle and informs that the vehicle is being worked on. There is a problem that it cannot be easily attached to a work piece or a work piece.

Patent Literature 2 below proposes a safety garment in which a flexible substrate on which an LED element is mounted is attached. Conventionally, work clothes with reflective materials attached are used to inform third parties of one's position at night or in a dark place, but the reflective materials cannot reflect light when there is no external light. There was a problem of lack of visibility. In order to solve this problem, Patent Document 2 below discloses a technique related to clothing equipped with LEDs.

However, in the technology disclosed in Patent Literature 2, since the flexible substrate is a resin plate, there is a problem that although it can be bent without flexibility and stretchability, the mounting location is limited. There is also the problem that it is heavy because it must be attached to work clothes, and it cannot be easily attached to facilities and structures such as safety fences that are installed at the work site and are considered effective for visual recognition. .

Japanese Patent Application Laid-Open No. 2021-7067 JP 2011-084838

As described above, when working at night, in a dark place, or working on a highway, it is necessary to make approaching vehicles notice that you are working from as far away as possible. To that end, we need a safety indicator light that is bright from any direction when viewed from the vehicle, has excellent visibility even from a distance, does not require special equipment or tools, and can be easily attached and detached at the work site. be.

In addition, road repair work is mainly performed outdoors, and the work must be carried out even in bad weather. For this reason, it is necessary to have a certain level of waterproofness and durability.

Therefore, in order to solve the above problems, the present invention is made of a material having translucency, has a cross-sectional shape of a major arc, and has a gap space formed between the outer peripheral surface and the inner peripheral surface. a cylindrical body cover of
a flexible substrate formed by providing wiring on a sheet-like substrate that is inserted into the gap space and on which a plurality of LED elements are arranged at predetermined intervals;
The safety lighting device for alerting attention is characterized in that a pipe is detachably fitted into a hollow portion of the cylindrical body cover by expanding both ends of the cylindrical body cover.

The safety lighting device for calling attention of the present invention is a cylindrical body having a major arc cross-sectional shape, and a gap space is formed between the outer circumference and the inner peripheral surface of the cylindrical body cover, and is inserted into the gap space. A flexible substrate is provided on which a plurality of LED elements are arranged at predetermined intervals.

The cross-sectional shape of the cylindrical body cover is a major arc, and the minor arc portion corresponds to the opening. The inner side of the cylindrical body cover is hollow with an arc-shaped cross section. The cylindrical body cover is flexible, and the width of the opening is widened by expanding both ends thereof. By widening the width of the opening, a pipe having a diameter substantially equal to the inner peripheral diameter of the cylindrical body cover can be fitted into the cavity. Further, by expanding both ends of the fitted cylindrical body cover, it can be easily removed from the pipe.

The material of the cylindrical body cover is preferably translucent polycarbonate, for example, milky white polycarbonate. A flexible substrate on which LEDs are mounted is inserted into the gap space between the outer peripheral surface and the inner peripheral surface of the cylindrical body cover. By lighting such an LED, the lighting tool becomes self-luminous. By installing the safety lighting device for calling attention of the present invention on a safety fence or the like at a work site, it is possible to make a vehicle approaching from a distance visually recognize that work is being performed even in a dark place or at night.

In the warning safety lighting device of the present invention, the LEDs are arranged so that the LED light is evenly emitted from all directions of the cylindrical body cover. As a result, regardless of the approaching direction of the vehicle or the installation method of the lighting device, it is possible to visually recognize that the work is being performed even from a distance.

In addition, by inserting the flexible substrate inserted into the gap so as to cover the inner peripheral surface of the cylindrical body (in close contact with the inner peripheral surface), the LED light can be further diffused and the visibility can be improved. In addition, in order to insert the flexible substrate so as to cover the inner peripheral surface, for example, a thin paper pattern that can maintain the shape of the inner peripheral surface and has flexibility is attached to the back side of the flexible substrate (the side where the LED light is not emitted). It can be easily realized by inserting

The safety lighting device for calling attention of the present invention has waterproof caps on both ends of the cylindrical body cover so that the work can be performed even in rough weather. As a result, it can be used even in outdoor work in rainy weather.

According to the present invention, even when working at night or in a dark place, or working on a highway, a warning with high visibility can be used from a distance that can sufficiently avoid collisions so that the vehicle can notice that work is in progress. A wake-up light can be provided. In addition, according to the present invention, the warning safety device is bright from any direction when viewed from the vehicle, has excellent visibility even from a distance, and can be easily attached and detached without requiring special equipment or tools at the construction site or work site. An indicator light can be provided.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view of a warning safety lighting device according to an embodiment of the present invention; FIG. 4 is a diagram showing a state in which a flexible substrate is inserted through a clearance space of a cylindrical body cover according to one embodiment of the present invention; FIG. 4 is a perspective view showing a state in which waterproof caps are fitted to both end portions of the cylindrical body cover according to the embodiment of the present invention; It is the figure which looked at the safety lighting implement for calling attention which is one embodiment of the present invention from the bottom. FIG. 4A is a cross-sectional view of a cylindrical body cover and a perspective view of a waterproof cap according to an embodiment of the present invention; It is a circuit wiring diagram formed in the flexible substrate which is one embodiment of the present invention. It is a figure explaining the function by which the safety lighting implement for calling attention which is one embodiment of this invention is fitted in a pipe etc. FIG. FIG. 10 is a diagram showing a usage example of attaching a safety lighting fixture for calling attention to a pipe of a safety fence of an aerial work platform of an aerial work platform.

Embodiments of the present invention will be described in detail with reference to the drawings, but the present invention is not limited thereto. FIG. 1 is an exploded perspective view of a warning safety lighting device 1 according to an embodiment of the present invention. The caution safety lighting device 1 is derived from a flexible substrate 20 on which an LED 21 is mounted (arranged) to be inserted into a gap 110 between the tubular body cover 10 and the tubular body cover 10, and a circuit of the flexible substrate 20, A connector 50 for connecting to an external power source and waterproof caps 30 for sealing both ends of the cylindrical body cover 10 are provided.

FIG. 2 is a view showing a state in which a flexible substrate 20 is inserted through a tubular body cover 10 that constitutes a safety lighting device 1 for calling attention according to an embodiment of the present invention. The flexible substrate 20 is bent into the shape of the gap 110 between the outer peripheral surface and the inner peripheral surface of the cylindrical body cover 10 and inserted therethrough. A plurality of LEDs 21 are arranged on the flexible substrate 20, and a circuit connecting these LEDs is formed on the flexible substrate. The material of the flexible substrate 10 is a flexible resin film, which is flat when no external force is applied.

Therefore, when inserted into the insertion space 110, it is included in the insertion space 110 in a shape along the inner side of the outer peripheral surface. In such a state, the LED 21 is in direct contact with the inside of the outer peripheral surface, so the light emitted from the cylindrical body cover 10 does not diffuse so much. On the other hand, if the flexible substrate 20 is enclosed in the clearance space 110 in a shape along the inner peripheral surface, the light emitted from the cylindrical body cover 10 is diffused more, and the visibility from a distance is improved. In order to insert the flexible substrate 20 into the gap space 110 in a shape along the inner peripheral surface, for example, the back side of the flexible substrate (the side where the LED does not emit light) can hold the shape of the inner peripheral surface and has flexibility. For example, affixing a paper pattern such as

FIG. 3 shows a safety device for calling attention in which a flexible substrate 20 is inserted into a clearance space 110 of a cylindrical body cover 10 and waterproof caps 30 are fitted to both ends of the cylindrical body cover 10 according to an embodiment of the present invention. 1 is a perspective view of a lighting fixture 1; FIG. Note that the safety lighting device 1 for calling attention shown in FIG. 3 is a cylindrical body whose cross-sectional shape is a circular arc of approximately 3/4 circumference, but the circular arc is a major arc and the portion corresponding to the opening is a minor arc. The cross-sectional shape does not have to be a substantially 3/4 arc shape.

A connector 50 for supplying power is led out from one end of the flexible substrate 20 inserted into the insertion space 110 . By connecting the connector 50 to the power supply, the LED arranged on the flexible substrate 20 blinks. The connector 50 is connected to a storage battery equipped with a solar panel or an external power source depending on the usage environment.

FIG. 4 is a bottom view of the warning safety lighting device 1 according to one embodiment of the present invention. A clearance space 110 is formed between an outer circumference 111 and an inner circumference 112 that constitute the cylindrical body cover 10 . The tubular body cover 10 is a tubular body having an arc-shaped cross section, and the inside of the tubular body is a hollow portion 40 . A connector 50 is led out from one end of the flexible substrate 20 inserted into the clearance space 110 .

5A and 5B are a cross-sectional view of the cylindrical body cover 10 and a perspective view of the waterproof cap 30 according to one embodiment of the present invention. 5(a) and 5(b) are cross-sectional views of a state where the waterproof cap 30 is fitted to the end of the tubular cover 10, and FIGS. 5(c) and 5(d) are the ends of the tubular cover 10. is a cross section in a state in which the waterproof cap 30 is not fitted. In the cross section of the tubular body cover 10 in the embodiment shown in FIG. 5, the major arc is approximately 3/4 of the circumference, and the minor arc corresponding to the opening is approximately 1/4 of the circumference.

Although the details will be described later, the feature of the warning safety lighting device of the present invention is that it can be easily attached to and detached from pipes such as safety fences and signboards installed in the work site in the hollow portion 40 . If the width of the opening is 1/2 or more of the inner circumference of the cylindrical body, the pipe can be fitted into the hollow portion 40, but if it is larger than 1/2, the pipe cannot be tightly held as it is. For this reason, it is necessary to attach adhesive such as double-sided tape to the inner periphery of the hollow portion, or tie the outer periphery with a string or the like. However, as in the present embodiment, the cylindrical body cover 10 is made of a flexible material (manufactured by resin extrusion molding), and the opening has a shape corresponding to a minor arc (the width of the opening is set to the inner circumference of the cylindrical body). 1/2 or less), it can be detachably fitted to a pipe such as a safety fence. Then, as shown in FIG. 5(e), by sealing the end portion of the clearance space 110 of the cylindrical body cover 10 with the waterproof cap 30, it is possible to prevent rainwater and the like from entering the clearance space 110. FIG.

FIG. 6 is a circuit wiring diagram formed on the flexible substrate 20. As shown in FIG. The flexible substrate 20 is made of a thin, flexible and bendable film, such as a plastic film such as polyimide, on which circuit wiring is formed by, for example, ink jet printing. One end of the flexible substrate 20 is connected to a connector 50 for supplying DC power from the outside. FIG. 6(a) is a circuit wiring diagram when LEDs 21 (not shown) are arranged in 3 rows in the short direction and 13 rows in the longitudinal direction. ) are arranged in four rows in the lateral direction and seven rows in the longitudinal direction.

By increasing the number of LEDs arranged in the lateral direction, the light is bright from any direction when viewed from the vehicle, and the visibility from a long distance is improved. Further, by increasing the number of LEDs arranged in the longitudinal direction, the safety lighting device for attracting attention can be made brighter and excellent in visibility. On the one hand, an increase in the number of LEDs is directly linked to power consumption. It is preferable that the length of the caution-calling safety lighting device is adapted to the working environment in which it is used, and the like.

7A and 7B are diagrams for explaining the function of the warning safety lighting device 1, which is an embodiment of the present invention, that can be fitted to pipes such as safety fences installed at work sites and the like. The cylindrical body cover 10 is made of flexible resin and has an opening width narrower than the inner diameter of the cylindrical body. That is, the cross-sectional shape of the cylindrical body cover is a circular arc, the circular arc is the major arc, and the portion corresponding to the opening is the minor arc.

As shown in FIG. 7( a ), the width of the opening is widened by pulling with a force F so as to open both ends of the opening of the cylindrical body cover 10 , and the pipe 60 having approximately the same size as the radius of the hollow portion 40 is inserted into the hollow portion 40 . fit. The tubular body cover 10 fits the pipe 60 by its elastic force (restoring force) F. As shown in FIG. FIG. 7(b) is a diagram in which the attention-calling safety lighting device 1 is fitted to the pipe 60 by the elastic force of the cylindrical body cover 10. FIG. In order to remove the warning safety lighting device 1 from the pipe 60 , it can be easily removed from the pipe 60 by opening both ends of the cylindrical body cover 10 .

The inner circumference of the cylindrical body cover 10 must be changed according to the diameter of the pipes used for the equipment/instruments installed at the work site. For example, the diameter of the single pipe used as scaffolding material is 27.2φ or 42.7φ, the diameter of the red pole is 28.0φ, and it is installed next to the anti-collision tank installed at the entrance of the highway. The diameter of the pole used is 60.5φ. Since the diameters of the pipes to be attached vary in this way, it is preferable that the inner diameter of the cylindrical body cover 10 is appropriately determined according to the diameter of the pipe to be fitted.

FIG. 8 is a view showing an example of use of the safety lighting device 1 for calling attention of the present invention, which is used by attaching the safety lighting device 1 for calling attention to the pipe of the safety fence of the high altitude work platform of the aerial work vehicle 70. be. When working in a tunnel of a highway, even if the main body of the vehicle for aerial work is within the lane regulation, the aerial work platform may protrude from the lane regulation due to the repaired part or the like. Even in such a case, by installing the warning safety lighting device 1 of the present invention on the safety fence of the high work platform, it is possible to make the approaching vehicle notice that the work is being carried out even from a distance.

1 safety lighting device for calling attention 10 cylindrical body cover 20 flexible substrate 21 LED
30 Waterproof cap 40 Cavity 50 Connector 60 Pipe 70 Aerial work vehicle 110 Gap space 111 Outer circumference 112 Inner circumference

Claims (5)

a flexible cylindrical body cover made of a translucent material, having a major arc cross-sectional shape, and having a gap space formed between the outer peripheral surface and the inner peripheral surface thereof;
a flexible substrate formed by providing wiring on a sheet-like substrate that is inserted into the gap space and on which a plurality of LED elements are arranged at predetermined intervals;
A safety lighting device for calling attention, characterized in that a pipe is detachably fitted in a hollow portion of the tubular body cover by expanding both ends of the tubular body cover. 2. The safety lighting device for calling attention according to claim 1, wherein the LED elements are arranged on the flexible substrate so that the light is emitted uniformly in all directions from the cylindrical body cover. 3. The safety lighting device for calling attention according to claim 1, wherein the flexible substrate inserted into the clearance space is inserted so as to cover the inner peripheral surface. 4. The safety lighting device for calling attention according to claim 1, wherein both ends of said clearance space are sealed with waterproof caps. 5. The safety lighting device for calling attention according to any one of claims 1 to 4, wherein the material of the cylindrical body cover is a milky-white polycarbonate.

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