KR101712734B1 - Breathable gaiters secured - Google Patents

Breathable gaiters secured Download PDF

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Publication number
KR101712734B1
KR101712734B1 KR1020150092408A KR20150092408A KR101712734B1 KR 101712734 B1 KR101712734 B1 KR 101712734B1 KR 1020150092408 A KR1020150092408 A KR 1020150092408A KR 20150092408 A KR20150092408 A KR 20150092408A KR 101712734 B1 KR101712734 B1 KR 101712734B1
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KR
South Korea
Prior art keywords
circuit board
printed circuit
led
display panel
helmet
Prior art date
Application number
KR1020150092408A
Other languages
Korean (ko)
Other versions
KR20170002200A (en
Inventor
서진용
Original Assignee
주식회사 서진안전
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 주식회사 서진안전 filed Critical 주식회사 서진안전
Priority to KR1020150092408A priority Critical patent/KR101712734B1/en
Publication of KR20170002200A publication Critical patent/KR20170002200A/en
Application granted granted Critical
Publication of KR101712734B1 publication Critical patent/KR101712734B1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V33/00—Structural combinations of lighting devices with other articles, not otherwise provided for
    • F21V33/0064—Health, life-saving or fire-fighting equipment
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21L—LIGHTING DEVICES OR SYSTEMS THEREOF, BEING PORTABLE OR SPECIALLY ADAPTED FOR TRANSPORTATION
    • F21L4/00—Electric lighting devices with self-contained electric batteries or cells
    • F21L4/08—Electric lighting devices with self-contained electric batteries or cells characterised by means for in situ recharging of the batteries or cells
    • F21L4/085—Pocket lamps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
    • F21V23/0442—Arrangement of electric circuit elements in or on lighting devices the elements being switches activated by means of a sensor, e.g. motion or photodetectors
    • F21V23/0464—Arrangement of electric circuit elements in or on lighting devices the elements being switches activated by means of a sensor, e.g. motion or photodetectors the sensor sensing the level of ambient illumination, e.g. dawn or dusk sensors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
    • F21V23/0442—Arrangement of electric circuit elements in or on lighting devices the elements being switches activated by means of a sensor, e.g. motion or photodetectors
    • F21V23/0471—Arrangement of electric circuit elements in or on lighting devices the elements being switches activated by means of a sensor, e.g. motion or photodetectors the sensor detecting the proximity, the presence or the movement of an object or a person
    • H05B37/0227—
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/40—Lighting for industrial, commercial, recreational or military use
    • F21W2131/402—Lighting for industrial, commercial, recreational or military use for working places

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Helmets And Other Head Coverings (AREA)

Abstract

The present invention relates to a safety display device for a helmet using an LED that flashes an LED to enable a relative worker to easily find an operator in a nighttime work, a underground work, a tunnel work, etc., In the case of constructing the safety display device for a helmet using LED, it is possible to directly construct a mounting portion formed in a circular ring shape at the rear end portion of a normal helmet, or to form a circular battery- A body integrally formed with a clip; A printed circuit board is mounted on a back surface of the body, a printed circuit board is mounted on the back surface of the printed circuit board, and a coupling groove is formed on the front surface of the circuit board, the coupling groove being divided into three equal parts, A display panel for forming a light emitting portion so as to emit light by being coupled with the LED lamp; A microcontroller is installed at the center of the circuit board mounting part, and an LED lamp is formed on an outer three-divided wing of the front surface, and a lighting sensor is attached to one side of the wing, and a motion sensor A printed circuit board having a printed circuit board; A sticker plate configured to be attached to and detached from a coupling groove of the display panel and having a sticker attachment surface for attaching a sticker to the center; A battery accommodated from the rear of the battery compartment of the body and supplying power to the printed circuit board stored in the display panel; A safety indicator for a helmet using an LED is used as a cover which is coupled to the rear of the battery compartment of the body so as to press the rear end of the battery.

Description

Breathable gaiters secured display using a LED

The present invention relates to a safety display device for a helmet using an LED that flashes an LED to enable a relative worker to easily find an operator in a nighttime work, a underground work, a tunnel work, or the like.

In general, it is essential to wear a helmet, which is a helmet, to protect the user's head when riding a construction site, a motorcycle, or a bicycle.

In this way, the helmet to be worn for safety protects the head of the wearer, but it is easily detected by the other person, so that it is prevented from hitting each other, and it is helpful to easily grasp the position of the worker.

However, the helmets used so far have been configured to simply protect the head, and furthermore, to improve discrimination, the helmet was satisfactorily colored in white or attached with a luminous sticker, and separately developed safety indicator Until now it was the actual situation.

       On the other hand, the prior art patent literature developed so far will be described as follows.

In Patent Application No. 10-2005-0023749 (Mar. 22, 2005), a light emitting bulb for safety indication is attached to the bottom surface of the upper portion of the housing by a button cover, and a light emitting diode flashing control chip mounting printed circuit board and a push A plurality of surface-mounted light emitting diodes connected to the printed circuit board are positioned on an outer frame of the fixing member and a fixing member is inserted into the housing and fused to form an integrated body. do. Patent application No. 10-2009-0057789 (Jun. 26, 2009) is a motorcycle, a bike, etc., which has a high speed and a small safety structure that can protect the driver, The safety lamp includes a rubber sheet formed on both sides of the adhesive surface, and a support plate formed to have a curved surface on the upper surface of the rubber sheet. And a lower support protrusion formed on both sides of the support plate to form an engaging groove on an inner surface of the protrusion and a support protrusion formed on a lower end of the protrusion to sandwich the LED substrate therebetween, A light source unit configured to supply power to the LED substrate; and a reflection surface formed on an upper portion of the support plate including the LED substrate, Luer light reflector so that the waterproof case configured jaw to the upper surface; A through hole is formed in the light reflecting case to engage with the light reflecting case, an external space is formed in the seating space in which the battery is seated, and the battery unit is seated on the rubber sheet and the on / off switch is formed on the side. The patent application No. 10-2009-0129513 (Dec. 23, 2009) discloses an LED display device that allows an operator to easily and accurately identify a driver who travels at night in a display area of characters, numbers, Solar LEDs are used to make solar panels that supply power to illuminate traffic safety signs and LEDs in a direction that is suitable for road conditions and weather conditions. A traffic safety sign, comprising: a pile installed on a road for mounting a traffic safety sign; an LED installed at an edge of the traffic sign to illuminate a display area indicating various traffic safety; In order to make sure that the lights are not scattered to the outside but are lit in the direction of the display area, A solar panel disposed on an upper end of the column so as to convert solar energy into electric energy for supplying power to the LED, and a controller for controlling the LEDs to be turned on and off And an LED traffic safety sign using solar heat comprising the control unit. Patent Application No. 10-2011-0025243 (Mar. 23, 2011) discloses a bicycle equipped with a signal indicator which is supplied with power from a power source installed on a bicycle and is capable of displaying the situation in a direction of rotation or emergency such as an emergency situation. A display controller for controlling a signal indicator and displaying a travel distance and a calorie consumption; and a display controller connected to the display controller for signaling the rotation direction and the stop signal, A signal display unit in which a plurality of LED modules are composed of a plurality of rows and columns, and a laser irradiation unit for displaying the width of the bicycle. The patent application No. 10-2011-0128965 (Dec. 2011) relates to a safety helmet worn at a construction site constituting an LED display panel capable of displaying various identification messages according to a construction site, and an LED display panel And the mounted information is output through the LED display panel. Patent Application No. 10-2014-0041713 (Apr. 4, 2014) discloses a LED lighting device having a housing structure in which the LED module is installed inside and a heat dissipation part is formed on an upper part of the housing; A joint box formed on an upper portion of the housing main body, the power box being connected to the joint box; A casing unit having the LED module installed inside the housing main body, and a casing part coupled to an upper part of the housing main body to facilitate coupling of the lamp with other equipment or facility; And a heat dissipating unit formed on the casing unit to dissipate heat generated in the LED module unit. The heat dissipating unit is formed perpendicularly to the housing body, and has a cylindrical shape The heat radiating fins are formed in a cylindrical shape so that the heat radiating effect can be enhanced by smoothly flowing the air regardless of the direction of the wind. And a junction box is attached to the upper part of the heat dissipating part, so that it can be safely supplied with electric power without causing a short circuit or disconnection even when a severe wind blows or a wind blows due to the connection in the box, It is easy to connect with other equipment or facility. A utility model registration application No. 20-1997-0045554 (December 31, 1997) relates to an LED lamp module for a traffic safety sign, which is a conventional LED lamp type traffic safety sign, It is made of aluminum or plastic case which can insert LED lamp by injection and LED lamp is inserted into it, so that the traffic indication part is formed as one unit. It is an LED lamp module for traffic safety signboard which can be converted into sign and improved the manufacturing process of LED light traffic safety sign compared with conventional LED lamp traffic sign. The present invention relates to a portable type multifunctional safety display device, and more particularly, to a portable type multifunctional safety display device having a base plate on which a magnet is embedded and on which a mounting groove is formed; A drive motor fixed to one side of the installation groove; A rotary rod hinged to the inside of the installation groove so as to be rotatable and connected at one end to the drive motor to receive a rotary force; A battery embedded in the base plate to supply power; A warning plate fixed to the other end of the rotary rod and having a warning portion including letters, characters, pictures and arrows; A control unit provided at one side of the base plate and having a built-in memory; And a flashing lamp connected to the control unit with the battery as a power source to be turned on at the same time when the warning plate rotates according to the shape indicated on the warning unit and turned off when the warning plate is in the home position. By stimulating the senses, it can promptly and strikingly concentrate on gaze, which is excellent in preventing accidents and enhancing visibility. Therefore, it is possible to induce safe driving of trailing vehicles regardless of state or night, and it is easy to carry, In addition, it can be usefully used in equipment or places where other safety precautions are required.

In consideration of the fact that there is no separate safety display device to be mounted on the safety helmet, the present invention has been improved and invented in accordance with the patent application No. 10-2014-0124757 (2014.09.19) filed by the inventor of the present invention, The safety lamp is flashed when the two conditions are matched to detect the movement of the wearer, so that the wearer can be identified, and the safety display device can be separately constructed and easily mounted on the existing helmet.

According to an aspect of the present invention, there is provided a safety display device for a helmet using an LED, comprising: a body formed integrally with a backward-folded clip at a lower side of a back surface, ; A printed circuit board is mounted on a back surface of the body, a printed circuit board is mounted on the back surface of the printed circuit board, and a coupling groove is formed on the front surface of the circuit board, the coupling groove being divided into three equal parts, A display panel for forming a light emitting portion so as to emit light by being coupled with the LED lamp; A microcontroller is installed at the center of the circuit board mounting part, and an LED lamp is formed on an outer three-divided wing of the front surface, and a lighting sensor is attached to one side of the wing, and a motion sensor A printed circuit board having a printed circuit board; A sticker plate configured to be attached to and detached from a coupling groove of the display panel and having a sticker attachment surface for attaching a sticker to the center; A battery accommodated from the rear of the battery compartment of the body and supplying power to the printed circuit board stored in the display panel; A safety indicator for a helmet using an LED is used as a cover which is coupled to the rear of the battery compartment of the body so as to press the rear end of the battery.

According to another aspect of the present invention, there is provided a helmet, comprising: a mounting portion formed at the rear end of a normal helmet in a circular ring shape; A printed circuit board is mounted on a back surface of the printed circuit board, and the printed circuit board is mounted on a back surface of the printed circuit board. The front surface of the printed circuit board is circular, A display panel for forming a light emitting portion so as to emit light by being coupled with the LED lamp; A microcontroller is installed at the center of the circuit board mounting part, and an LED lamp is formed on the outer three sides of the front panel. An illumination sensor is attached to one side of the LED lamp, and a motion sensing A printed circuit board having a sensor; A sticker plate configured to be detachable and attachable to a front engagement groove of the display panel and having a sticker attachment surface for attaching a sticker at the center; A battery for storing electric power supplied from the inside of the helmet to the printed circuit board mounted on the display panel; And a safety indicator for a helmet using an LED as a cover that is coupled to the rear of the mounting portion of the helmet so as to press the rear end of the battery.

Here, the printed circuit board includes an illumination sensor and an operation sensor for sensing a tilt, and a microcontroller for selectively generating a flash signal by sensing and calculating signals of the illumination sensor and the motion sensor, And the LED lamp is turned on when the ON signal of the illumination sensor and the ON signal of the motion detection sensor are simultaneously applied to the safety indicator for the helmet using the LED. .

The present invention detects the illuminance of the scene and the motion of the wearer simultaneously, and when the two conditions coincide, the safety lamp is flickered to separately identify the wearer, so that the helmet can be easily mounted on the existing helmet, When the scene is dark due to dark or cloudy weather as a tunnel, or when the illuminance sensor that senses the illuminance at night work is turned on and ready for flashing, when the wearer operates to work, the motion sensor is turned on and blinks, Of course, it is easy for others to identify and prevent safety accidents. In this case, the configuration and flashing sequence of the blinking LED are varied to make it more distinguishable. It is easy to attach and detach to the helmet, and the appearance is beautiful but dark. A new invention such as minimizing battery consumption .

1 is an exemplary view of a helmet embodying the present invention;
2 is an exploded view showing a configuration of the present invention;
Fig. 3 is an example of a configuration state in which the present invention is assembled. Fig.
4 is a diagram illustrating an example of the configuration of a signboard which is a main part of the present invention.
Fig. 5 is a diagram showing an example of the configuration of a printed circuit board which is a main part of the present invention. Fig.
6 is a diagram illustrating an example of the configuration of a helmet according to another embodiment of the present invention.
FIG. 7 is a schematic view of a configuration of a lamp circuit of a printed circuit board which is a main part of the present invention. FIG.
8 is a diagram illustrating a specific circuit configuration state of a printed circuit board which is a main part of the present invention.

The configuration of the present invention will be described below.

A body 10 integrally formed with a clip 12 rearwardly bent at a lower side of the back surface, which is formed in a circular ring shape so as to form the battery compartment 11;

A printed circuit board 30 is mounted on the back surface of the body 10 and a circuit board mounting part 21 is formed on the back surface of the body 10 to form a coupling groove 22 divided into three parts, A display panel (20) for forming a light emitting portion (23) to emit light by coupling an LED lamp (36) to the remaining three portions where the coupling groove (22) is formed;

A microcontroller 35 is installed at the center of the circuit board mounting portion 21 and an LED lamp 36 is formed on the outer three divided wings 31 on the front side and an illuminance sensor 37 is provided on one side of the wing 31 A printed circuit board (30) having a motion detection sensor (38) attached thereto and operated by sensing a tilt at any one of the backsides;

A sticky plate (40) configured to be adhered to and detachable from a coupling groove (22) of the display panel (20) and having a sticky attachment surface (41) for attaching a sticky in the center;

A battery (50) housed in the body (10) from the rear of the battery compartment (11) and supplying power to the printed circuit board (30) housed in the display panel (20);

A safety indicator for a helmet using an LED is configured as a cover 60 which is coupled to the rear of the battery storage portion 11 of the body 10 so as to press the rear end of the battery 50.

A mounting portion 101 formed at the rear end of the conventional helmet 100 in a circular ring shape;

A printed circuit board 30 is mounted on the back surface of the circuit board mounting portion 21 and a coupling groove 22 divided into three equal parts is formed on the outer surface of the circuit board mounting portion 21, A display panel (20) for forming a light emitting portion (23) to emit light by coupling an LED lamp (36) to the remaining three portions where the coupling groove (22) is formed;

A microcontroller 35 is installed at the center of the circuit board mounting portion 21 and an LED lamp 36 is formed on the outer three divided wings 31 on the front side and an illuminance sensor 37 is provided on one side of the wing 31 A printed circuit board (30) having a motion detection sensor (38) attached thereto and operated by sensing a tilt at any one of the backsides;

A sticker plate 40 configured to be adhered to and detachable from the front engagement groove 22 of the display panel 20 and having a sticker attachment surface 41 for attaching a sticker to the center;

A battery 50 accommodated in the mounting portion 101 of the helmet 100 from the inside of the helmet 100 and supplying power to the printed circuit board 30 mounted on the display panel 20;

A safety indicator for a helmet using an LED may be used as the cover 60 which is coupled to the rear of the mounting portion 101 of the helmet 100 so as to press the rear end of the battery 50.

At this time, the printed circuit board includes an illuminance sensor 37 and a motion sensor 38 for sensing a tilt, and detects and calculates signals of the illuminance sensor 37 and the motion sensor 38, And an LED lamp 36 which is selectively turned on and off according to a flicker signal generated by the microcontroller 35. The ON signal of the illuminance sensor 37 and the operation signal And the LED lamp 36 is turned on when the ON signal of the sensor 38 is simultaneously applied.

Hereinafter, the embodiment of the present invention will be described.

In order to implement the present invention, a mounting portion 101 having a circular ring shape is formed at the rear end of a normal helmet 100, or a rear portion of the rear surface of the helmet 100 is formed with a circular ring shape to form the battery- The body 10 is configured to be detachably attached to the helmet 100 having the bent clip 12 integrally formed thereon.

A circuit board mounting portion 21 is formed on the back surface and a coupling groove 22 divided into three parts on the outer side in a circular shape is formed on the front surface and an LED lamp 36 The microcontroller 35 is built in the center of the circuit board mounting portion 21 of the display panel 20 and the outer side of the front side And a motion detection sensor 38 that is configured to detect the inclination of the rear surface of the blade 33 and to detect the tilt of the rear surface of the blade 33, The substrate 30 is coupled to the circuit board mounting portion 21 so that the LED lamp 36 is aligned with the light emitting portion 23. [

Next, a separate sticker plate 40 constituting the sticker attaching surface 41 is engaged with the engaging groove 22 of the display panel 20.

Here, the sticker plate 40 is configured separately from the display panel 20. First, the display panel 20 is required to have a light emitting portion 23 that emits light emitted from the LED lamp 36. And the second purpose is to improve the appearance by directing the sticky plate in various colors. Thirdly, when the light emitted from the LED lamp 36 passes through the light emitting portion 23, So that the light emitting portion 23 can be clearly divided into three portions.

If the symbol or safety phrase of the company is printed on the sticker-attaching surface 41 of the sticker plate 40 and attached, the function will be great.

  The display panel 20 in which the printed circuit board 30 and the sticker plate 40 are combined is mounted on the mounting portion 101 of the helmet 100 or the battery accommodating portion 11 of the body 10, As shown in Fig.

A battery 50 for supplying power to the printed circuit board 30 is housed from the rear of the mounting portion 101 of the helmet 100 or the battery storage portion 11 of the body 10 and the rear end of the battery 50 When the cover 60 is pressed to press it, all the construction is completed.

The present invention thus completed is combined with the use of a clip 12 integrally formed with a body 10 of the present invention which is constructed by attaching a helmet 100 constructed according to the present invention to a conventional helmet 100 When the weather is blurred, when the weather is blurred, when the blurring of the blurring occurs or when the surrounding environment becomes dark, the illuminance sensor 37, which senses the ambient condition, sends a signal to the microcontroller 35 to turn on the LED lamp 36 .

When the wearer operates in the above-described state, when the motion sensor 38 senses the ON signal, the ON signal sent from the illumination sensor 37 and the motion sensor 38 are sent to the microcontroller 35 The microcontroller 35 calculates the sent on signal by the microcontroller 35 and when the ON signal sent from the illumination sensor 37 matches the ON signal sent from the motion sensor 38, The blinking light of the LED lamp 36 is emitted to the outside through the light emitting part 23 to easily recognize the wearer.

At this time, the LED circuit 36 is flickered and the printed circuit board that emits light constitutes an illuminance sensor 37 and an operation sensor 38 for sensing a tilt, and these illuminance sensors 37, The microcontroller 35 and the microcontroller 35, which detect and calculate the signal of the motion sensor 38 and selectively generate the flashing signal, and the microcontroller 35, And the method is infinite.

10: Body 11: Battery compartment 12: Clip
20: display panel 21: circuit board mounting portion 22: coupling groove
23: light emitting portion 30: printed circuit board 31: wing
35: Microcontroller 36: LED lamp 37: Illumination sensor
38: motion detection sensor 40: sticker plate 41: sticker attachment surface
50: Battery 60: Cover 100: Helmet
101:

Claims (3)

A display panel 20 for forming a light emitting portion 23 so as to emit light when the LED lamp 36 is combined with the display panel 20 and a printed circuit board 30 having a detection sensor, And a cover (60) coupled to the rear of the battery storage portion (11) of the body (10) so as to press the rear end of the battery (50)
The body (10) comprises: a clip (12) integrally formed with a rearwardly folded back side downwardly formed in a circular ring shape;
The display panel 20 is coupled to the body 10 and the circuit board mounting portion 21 is formed on the back surface to mount the printed circuit board 30. The front surface of the display panel 20 has a circular shape, And a light emitting part (23) for emitting light by coupling an LED lamp (36) to the remaining three parts where the coupling groove (22) is formed;
The printed circuit board 30 is mounted on the circuit board mounting portion 21 and has a microcontroller 35 installed at its center and an LED lamp 36 is formed on the outer three divided wings 31 on the front side. And a motion detection sensor (38) attached to one side of the illumination sensor (37) and operated by sensing a tilt in any one of the rear side;
The sticker plate (40) is configured to be adhered to and detachable from the engagement groove (22) of the display panel (20), and a sticker attachment surface (41)
The LED lamp 36 senses and calculates signals of the illumination sensor 37 and the motion sensor 38 to detect an ON signal of the illumination sensor 37 and an operation signal of the motion sensor 38. [ The safety indicator for the helmet using the LED is configured to be turned on when the ON signal of the LED is turned on simultaneously. delete delete
KR1020150092408A 2015-06-29 2015-06-29 Breathable gaiters secured KR101712734B1 (en)

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KR20190000693U (en) 2017-09-08 2019-03-18 (주)삼정물산 Safety helmet equipped with removable lighting units

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CN109519737A (en) * 2018-11-30 2019-03-26 硅湖职业技术学院 Safety cap multi-angle early-warning lamp device and its control method
CN110185952A (en) * 2019-06-11 2019-08-30 贵州大学 Searchlight is used in a kind of portable safety of coal mines detection

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