KR200153864Y1 - Safety ear protector - Google Patents

Safety ear protector Download PDF

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Publication number
KR200153864Y1
KR200153864Y1 KR2019950053155U KR19950053155U KR200153864Y1 KR 200153864 Y1 KR200153864 Y1 KR 200153864Y1 KR 2019950053155 U KR2019950053155 U KR 2019950053155U KR 19950053155 U KR19950053155 U KR 19950053155U KR 200153864 Y1 KR200153864 Y1 KR 200153864Y1
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South Korea
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opening
main body
spring
closing
push button
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KR2019950053155U
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Korean (ko)
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KR970027081U (en
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강성신
유권일
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이구택
포항종합제철주식회사
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Priority to KR2019950053155U priority Critical patent/KR200153864Y1/en
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F11/00Methods or devices for treatment of the ears or hearing sense; Non-electric hearing aids; Methods or devices for enabling ear patients to achieve auditory perception through physiological senses other than hearing sense; Protective devices for the ears, carried on the body or in the hand
    • A61F11/06Protective devices for the ears
    • A61F11/14Protective devices for the ears external, e.g. earcaps or earmuffs
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2250/00Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2250/0058Additional features; Implant or prostheses properties not otherwise provided for
    • A61F2250/0075Sound-damping or noise-reducing means

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biomedical Technology (AREA)
  • Acoustics & Sound (AREA)
  • Biophysics (AREA)
  • Otolaryngology (AREA)
  • Psychology (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Surgical Instruments (AREA)

Abstract

본 고안은 산업현장에서 작업자의 청각을 보호하는 안전 귀마개에 관한 것으로, 보다 상세히는 작업자의 귀에서 탈착시킬 필요없이 간단한 조작만으로 소리를 들을수 있음으로서 사용상의 편리함이 개선된 안전 귀마개에 관한 것이다.The present invention relates to a safety earplug for protecting the worker's hearing in the industrial field, and more particularly to a safety earplug improved in the convenience of use can be heard by a simple operation without having to detach from the operator's ear.

본 고안은 일단부에 고리형의 고정턱을 형성하고, 공기흐름구멍을 형성하며, 내부면에 암나사부가 형성된 개폐고정 너트를 갖추고, 상기 고정턱에 걸리는 외부 스프링을 갖추며, 상기 외부스프링의 내부에 삽입되고, 선단부에 고무패킹을 장착한 개폐스프링을 갖추며, 상기 개폐스프링의 끝단부가 밀착되고, 외주면에 다수개의 돌출리브가 형성된 개폐스프링 작동기를 갖추며, 상기 돌출리브에 접하여 일방향으로 회전시키는 걸림리브를 선단부에 다수개 갖추고, 후단부에는 수나사부가 형성된 푸시버튼 연결축을 갖추며, 상기 개폐고정너트의 암나사부에 결합되는 수나사부를 선단부에 형성하고, 내부면에 다수개의 삽입흠과 걸림턱이 일정거리를 가지고 복수개로 형성된 본체를 갖추고, 상기 본체의 후단부에 형성된 수나사부와 연결되어 상기 본체를 고정하는 본체고정너트를 갖추며, 상기 푸시버튼 연결측의 일단부에 형성된 수나사부와 연결되고 공기흐름구멍을 형성한 푸시버튼을 포함함을 특징으로 하는 안전 귀마개를 제공한다.The present invention forms an annular fixed jaw at one end, forms an air flow hole, and has an open / close fixing nut having a female threaded portion formed at an inner surface thereof, and has an external spring that is caught by the fixed jaw, and inside the outer spring. Inserted and equipped with an opening and closing spring equipped with a rubber packing on the front end, the end of the opening and spring is in close contact, the opening and closing spring actuator formed with a plurality of protruding ribs on the outer circumferential surface, the front end of the locking rib in contact with the protruding rib to rotate in one direction Equipped with a plurality of, the rear end is provided with a push button connecting shaft formed with a male thread portion, the male thread portion coupled to the female threaded portion of the opening and closing nut is formed at the front end, and a plurality of insertion grooves and locking jaws on the inner surface with a certain distance A main body having a main body formed of a main body, the main body being connected to a male Equipped with a body fixing nut for fixing the, and provides a safety earplug characterized in that it comprises a push button connected to the male screw formed on one end of the push-button connection side and formed an air flow hole.

Description

안전 귀마개Safety earplugs

제1도는 종래 기술에 따른 귀마개의 구성도.1 is a block diagram of the earplug according to the prior art.

제2도는 본 고안에 따른 안전 귀마개의 구성도.2 is a block diagram of a safety earplug according to the present invention.

제3도는 본 고안에 따른 안전 귀마개의 분해사시도.Figure 3 is an exploded perspective view of a safety earplug according to the present invention.

제4도는 본 고안에 따른 안전 귀마개의 단면도이다.4 is a cross-sectional view of the safety earplug according to the present invention.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

20 : 개폐고정너트 21 : 고정턱20: fixing nut 21: fixing jaw

30 : 외부 스프링 40 : 개폐스프링30: external spring 40: opening and closing spring

41 : 고무패킹 50 : 스프링 작동기41: rubber packing 50: spring actuator

51 : 돌출리브 60 : 푸시버튼 연결축51: protruding rib 60: pushbutton connecting shaft

61 : 걸림리브 70 : 본체61: jam rib 70: the body

73 : 돌출력 75 : 삽입흠73: protrusion force 75: insertion defect

80 : 본체고정너트 90 : 푸시버튼(PUSH BUTTON)80: main body fixing nut 90: push button (PUSH BUTTON)

본 고안은 산업현장에서 작업자의 청각을 보호하는 안전 귀마개에 관한 것으로, 보다 상세히는 작업자의 귀에서 탈착시킬 필요없이 간단한 조작만을 소리를 들을수 있음으로서 사용상의 편리함이 개선된 안전 귀마개에 관한 것이다.The present invention relates to a safety earplug for protecting the worker's hearing in the industrial field, and more particularly to a safety earplug with improved convenience in use can be heard only a simple operation without having to detach from the operator's ear.

일반적으로 귀마개(10)는 각종 산업현장에서 작업자의 청각을 소음으로부터 보호하는 안전장구이다. 이러한 귀마개(10)는 제1도에 도시된 바와 같이, 귀를 덮어주는 덮개판(11)을 양측에 갖추며, 상기 덮개판(11)을 서로 연결시키는 프레임(12)을 갖는다. 이러한 귀마개(10)는 작업장에서 효과적으로 소음을 차단할 수는 있지만, 이러한 귀마개(10)는 작업자가 대화를 하고자하는 경우는 이를 벗어야 하는 번거로움이 있다.In general, the ear plug 10 is a safety equipment that protects the worker's hearing from noise in various industrial sites. As shown in FIG. 1, the earplug 10 includes a cover plate 11 that covers the ears on both sides, and has a frame 12 that connects the cover plate 11 to each other. Such earplugs 10 can effectively block noise in the workplace, but such earplugs 10 are cumbersome to be removed if a worker wishes to have a conversation.

또한, 각종 설비에서 이상음을 청취하고자하는 경우에도 매번 벗어야 함으로서 작업자의 양쪽귀는 모두 큰 소음에 노출되어 청각장애를 유발하는 문제점을 갖는 것이다.In addition, even if you want to listen to the abnormal sound in various facilities to be removed every time both ears of the worker is exposed to loud noise has a problem causing hearing impairment.

본 고안은 상기한 바와같은 종래의 문제점을 해결하기 위하여 안츨된 것으로서, 그 목적은, 작업자의 귀에서 탈착시킬 필요없이 간단한 조작만으로 소리를 들을 수 있음으로서 작업자가귀에서 벗을 필요가 없음에 따른 사용상의 편리함이 개선된 안전 귀마개를 제공함에 있다.The present invention has been made in order to solve the conventional problems as described above, the object of the use is that the operator does not need to take off from the ear by being able to hear the sound with a simple operation without having to detach from the operator's ear Convenience in providing improved safety earplugs.

상기와 같은 목적을 달성하기 위한 기술적인 수단으로써, 본 고안은, 산업현장에서 작업자의 청각을 보호하는 안전 귀마개에 있어서, 일단부에 고리형의 고정턱을 형성하고, 공기흐름구멍을 형성하며, 내부면에 암나사부가 형성된 개폐고정 너트를 갖추고, 상기 고정턱에 걸리는 외부 스프링을 갖추며, 상기 외부스프링의 내부에 삽입되고, 선단부에 고무패킹을 장착한 개폐 스프링을 갖추며, 상기 개폐스프링의 끝단부가 밀착되고, 외주면에 다수개의 돌출리브가 형성된 개폐스프링 작동기를 갖추며, 상기 돌출리브에 접하여 일방향으로 회전시키는 걸림리브를 선단부에 다수개 갖추고, 후단부에는 수나사부가 형성된 푸시버튼 연결축을 갖추며, 상기 개폐고정너트의 암나사부에 결합되는 수나사부를 선단부에 형성하고, 내부면에 다수개의 삽입홈과 걸림턱이 일정거리를 가지고 복수개로 형성된 본체를 갖추고, 상기 본체의 후단부에 형성된 수나사부와 연결되어 상기 본체를 고정하는 본체고정너트를 갖추며, 상기 푸시버튼 연결축의 일단부에 형성된 수나사부와 연결되고 공기흐름구멍을 형성한 푸시버튼을 포함함을 특징으로 하는 안전 귀마개를 마련함에 의한다.As a technical means for achieving the above object, the present invention, in the safety earplugs to protect the worker's hearing in the industrial site, to form an annular fixed jaw at one end, and to form an air flow hole, Equipped with an opening and closing fixing nut formed with a female thread on the inner surface, and equipped with an external spring that is caught by the fixing jaw, is inserted into the outer spring, and equipped with an opening and closing spring equipped with rubber packing at the front end, the end of the opening and spring close contact And an opening / closing spring actuator having a plurality of protruding ribs formed on an outer circumferential surface thereof, having a plurality of engaging ribs in contact with the protruding ribs at one end thereof, and having a pushbutton connecting shaft having a male screw portion formed at a rear end thereof. A male thread portion coupled to the female thread portion is formed at the distal end portion, and a plurality of insertion grooves are formed on the inner surface. The locking jaw has a main body formed in plural with a predetermined distance, and is connected to the male screw part formed at the rear end of the main body, and has a main body fixing nut for fixing the main body, and is connected to the male screw part formed at one end of the pushbutton connecting shaft. And by providing a safety earplug characterized in that it comprises a push button formed air flow hole.

이하, 본 고안을 첨부된 도면에 의거하여 보다 상세하게 설명한다. 제2도는 본 고안에 따른 안전귀마게의 구성도이고, 제3도는 본 고안에 따른 안전귀마개의 분해 사시도이며, 제4도는 본 고안에 따른 안전귀마개의 단면도를 나타내고 있는 것이다.Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings. 2 is a block diagram of the safety earplug according to the present invention, Figure 3 is an exploded perspective view of the safety earplug according to the present invention, Figure 4 is a cross-sectional view of the safety earplug according to the present invention.

본 고안에 따른 안전귀마개(100)는 다수개의 부품이 서로 조합되어 일련의 공기 흐름구멍을 형성하는대, 가장 안쪽에 설치되는 개폐고정너트(20)는 다면체의 외형구조를 가지며, 내부면에는 암나사부(23)와 고리형의 고정턱(22)을 연속하여 형성하고, 상기 고정턱(22)에 일측이 끼워지는 외부스프링(30)은 일정 탄성력을 가지고 있으며, 선단부와 후단부의 외경이 상이한 구조를 갖는다. 그리고, 상기 외부스프링(30)의 내부공간에 삽입되는 개폐스프링(40)의 선단부에는 고무패킹(41)을 갖춘다.Safety earplug 100 according to the present invention is a plurality of parts are combined with each other to form a series of air flow holes, the innermost fixed fixing nut 20 is installed on the inner side has a polyhedral outer structure, the internal thread portion (23) and the ring-shaped fixing jaw 22 are formed continuously, the outer spring 30, one side of which is fitted to the fixing jaw 22 has a certain elastic force, the outer diameter of the front end and the rear end has a different structure Have Then, the front end of the opening and closing spring 40 is inserted into the inner space of the outer spring 30 is provided with a rubber packing 41.

또한, 상기 개폐스프링(40)의 일단부가 접하는 스프링 작동기(50)는 외부면에 일단부가 일정각도 경사져 형성된 다수개의 돌출리브(51)을 갖추고, 상기 돌출 리브(51)와 접촉하는 V자형의 걸림리브(61)를 선단부 외주면에 다수개 형성한 푸시버튼 연결축(60)은 후단부의 외부면에 수나사부(62)를 갖춘다. 그리고, 상기 개폐스프링(40)을 포함하는 외부스프링(30)과, 상기 스프링작동기(50)및 푸시버튼 연결측(60)이 서로 조합결합되어 내부에 설치되는 본체(70)의 선단부와 후단부 외부면에는 수나사부(71)가 각각 형성되고, 고리형의 돌출턱(73)을 형성하며, 내부면에는 삽입홈(75)과 걸림턱(76)이 일정거리를 가지고 다수개 형성되며, 상기 걸림턱(76)의 일단부는 상기 스프링작동기(50)의 외부면에 형성된 돌출리브(51)의 일단부에 형성된 일정각도와 동일한 형상으로 형성된다.In addition, the spring actuator 50 in contact with one end of the opening and closing spring 40 has a plurality of protruding ribs 51 having one end inclined at a predetermined angle on an outer surface thereof, and having a V-shaped contact with the protruding ribs 51. The pushbutton connecting shaft 60 having a plurality of ribs 61 formed on the outer circumferential surface of the distal end portion has a male screw portion 62 on the outer surface of the rear end portion. In addition, the front and rear ends of the main body 70 installed inside the outer spring 30 and the spring actuator 50 and the push button connection side 60 are combined with each other, including the opening and closing spring 40. Male threads 71 are formed on the outer surface, and annular protruding jaws 73 are formed on the outer surface, and a plurality of insertion grooves 75 and engaging jaws 76 are formed at a predetermined distance on the inner surface. One end of the locking jaw 76 is formed in the same shape as a predetermined angle formed on one end of the protruding rib 51 formed on the outer surface of the spring actuator 50.

상기 본체(70)의 후단부에 형성된 수나사부(71)와 결합되어 상기 본체(70)를 고정하는 고정너트(80)를 갖추며, 상기 푸시버튼 연결측(60)의 후단부에 형성된 수나사부(62)와 일체형으로 연결되는 푸시버튼(90)이 외부로 개방된 공기흐름구멍(91)을 가지고, 안전귀마개(100)의 가장 외부에 장착되어 사용자의 신호를 전달한다.A male screw portion (71) coupled to the male screw portion (71) formed at the rear end of the main body (70) and having a fixing nut (80) for fixing the main body (70), the male screw portion formed at the rear end of the pushbutton connection side (60) ( 62 is integrally connected with the push button 90 has an air flow hole 91 opened to the outside, and is mounted on the outermost of the safety earplug 100 to transmit a user's signal.

이러한 구성으로된 본 고안의 작용효과에 대하여 설명하면 다음과 같다.Referring to the effect of the present invention made in this configuration as follows.

본 고안에 따른 안전귀마개(100)는 사용자가 외부에 장착된 푸시버튼(90)을 한번 누르면, 외부소리가 연속하여 연결된 내부구멍을 통하여 전달하고, 상기 푸시버튼(90)을 또한번 누르게 되면, 외부소리가 차단되는 것이다.Safety earplug 100 according to the present invention, when the user presses the push button 90 mounted on the outside once, the external sound is continuously transmitted through the connected inner hole, and the push button 90 is pressed again, External sounds are cut off.

즉, 푸시버튼(90)을 사용자가 누르게 되면, 상기 푸시버튼(90)에 일측이 연결된 푸시버튼 연결축(60)이 전진하면서 상기 푸시버튼 연결축(60)의 선단부에 형성된 V형의 걸림리브(61)가, 스프링 작동기(50)의 외부면에 형성되고, 일정각도, 바람직하게는 15도 정도 경사진 돌출리브(51)를 접하면서 상기 돌출리브(51)의 일정각도에 의하여 본체(70)의 내부면에 형성된 다수개의 삽입홈(75), 바람직하게는 6개의 삽입홈(75)을 구성하고, 상기 삽입흠(75)은 상기 걸림턱에 연속한 걸림부위(H)를 형성한 홈과 형성하지 않은 홈이 번갈아 구성되는바, 상기 V형 걸림리브(61)가 상기 삽입홈(75)에 각각 삽입되어 푸시버튼(90)을 누를때 마다 전, 후진하여 상기 돌출리브(51)를 한 칸씩 일방향으로 회전하게 하는 것이다.That is, when the user presses the pushbutton 90, the pushbutton connecting shaft 60 connected to one side of the pushbutton 90 moves forward and the V-shaped locking rib formed at the tip of the pushbutton connecting shaft 60. The main body 70 is formed on the outer surface of the spring actuator 50 by contacting the protruding rib 51 inclined at a predetermined angle, preferably about 15 degrees, by the predetermined angle of the protruding rib 51. A plurality of insertion grooves 75, preferably six insertion grooves 75 formed on the inner surface of the), the insertion groove 75 is a groove forming a continuous locking portion (H) on the locking jaw The grooves are not formed alternately with the bar, the V-shaped locking ribs 61 are inserted into the insertion grooves 75, respectively, and each time the pushbutton 90 is pushed forward or backward, the protrusion ribs 51 are opened. One space to rotate in one direction.

즉, 스프링작동기(50)의 돌출리브(51)가 걸림턱(76)에 걸렸을때, 상기 스프링 작동기(50)를 항상 후방쪽으로 밀어내는 탄성력을 가지고 있는 외부스프링(30)이 전방측으로 압축됨으로서, 상기 외부스프링(30) 내부에 장착되는 개폐스프링(40)의 선단부에 형성된 고무패킹(41)이 개폐고정너트(80)의 내부면에 형성된 고리형의 고정턱(21)에 의해 이루어진 공기흐름구멍(22)을 밀봉하게 되어 외부로 부터의 소리전달을 차단하는 것이다.That is, when the protruding rib 51 of the spring actuator 50 is caught by the locking jaw 76, the outer spring 30 having an elastic force that always pushes the spring actuator 50 toward the rear side is compressed to the front side, An air flow hole formed by a ring-shaped fixing jaw 21 formed on the inner surface of the opening / closing fixing nut 80 has a rubber packing 41 formed at the front end of the opening / closing spring 40 mounted inside the outer spring 30. Sealing (22) is to block the transmission of sound from the outside.

상기와 같이 돌출리브(51)가 걸림턱(76)에 걸린상태에서 또다시 푸시 버튼(90)을 누르게 되면, 푸시버튼 연결측(60)의 걸림리브(61)에 의하여 상기 돌출리브(51)가 일방향으로 회전하면서 본체(70)의 삽입홈(75)에 삽입되어 압축된 상기 외부스프링(30)을 팽창시키고, 동시에 상기 외부스프링(30)의 내부에 장착된 개폐스프링(40)의 선단부에 형성된 고무패킹(41)이 상기 공기흐름구멍(22)를 개방함으로서 외부로 부터의 소리를 작업자의 귀에 전달하게 되는 것이다.When the push button 90 is pressed again while the protruding rib 51 is caught by the locking jaw 76 as described above, the protruding rib 51 is formed by the locking rib 61 of the push button connection side 60. Is inserted into the insertion groove 75 of the main body 70 while rotating in one direction to expand the compressed outer spring 30, and at the same time to the front end of the opening and closing spring 40 mounted inside the outer spring 30 The formed rubber packing 41 is to open the air flow hole 22 to transmit the sound from the outside to the worker's ear.

상슬한 바와같이 본 고안에 따른 안전 귀마개에 의하면, 소음이 발생되는 작장에서 청각보호 장비인 상기 안전 귀마개를 착용한 상태에서 간단한 조작으로 외부로 부터의 소리를 선택적으로 청취할 수가 있어서, 불필요한 소음과 작업에 필요한 대화및 기계이상 유무를 알수있는 소리를 귀덮개의 탈착없이 수행할 수 있어 사용상 편리하고, 효과적으로 청각을 보호할 수있는 실용상의 효과가 얻어지는 것이다.As described above, according to the safety earplug according to the present invention, in a noise-generating work place, the user can selectively listen to the sound from the outside with a simple operation while wearing the safety earplug as the hearing protection equipment, thereby preventing unnecessary noise and It is possible to perform the sound that can tell the presence of dialogue and machine abnormalities necessary for the work without detaching the ear cover, so that it is convenient in use and effective in protecting hearing.

Claims (1)

산업현장에서 작업자의 청각을 보호하는 안전 귀마개에 있어서, 일단부에 고리형의 고정턱(21)을 형성하고, 공기흐름구멍(22)을 형성하며, 내부면에 암나사부(23)가 형성된 개폐고정 너트(20)를 갖추고, 상기 고정턱(21)에 걸리는 외부 스프링(30)을 갖추며, 상기 외부스프링(30)의 내부에 삽입되고, 선단부에 고무패킹(41)을 장착한 개폐스프링(40)을 갖추며, 상기 개폐스프링(40)의 끝단부가 밀착되고, 외주면에 다수개의 돌출리브(51)가 형성된 개폐스프링 작동기(50)를 갖추며, 상기 돌출리브(51)에 접하여 일방향으로 회전시키는 걸림리브(61)를 선단부에 다수개 갖추고, 후단부에는 수나사부(62)가 형성된 푸시버튼 연결측(60)을 갖추며, 상기 개폐고정너트(20)의 암나사부(23)에 결합되는 수나사부(71)를 선단부에 형성하고, 내부면에 다수개의 삽입홈(75)과 걸림턱(76)이 일정거리를 가지고 복수개로 형성된 본체(70)를 갖추고, 상기 본체(70)의 후단부에 형성된 수나사부(71)와 연결되어 상기 본체(70)를 고정하는 본체고정너트(80)를 갖추며, 상기 푸시버튼 연결축(60)의 일단부에 형성된 수나사부(62)와 연결되고 공기흐름구멍(91)을 형성한 푸시버튼(90)을 포함함을 특징으로 하는 안전 귀마개.In the safety earplugs to protect the worker's hearing in the industrial field, opening and closing the ring-shaped fixing jaw 21, the air flow hole 22 is formed in one end, the female threaded portion 23 formed on the inner surface An opening / closing spring (40) having a fixing nut (20), having an outer spring (30) caught on the fixing jaw (21), inserted into the outer spring (30), and having a rubber packing (41) at its tip end. ) Is provided, the end portion of the opening and closing spring 40 is in close contact with the opening and closing spring actuator 50 formed with a plurality of protruding ribs 51 on the outer circumferential surface, the locking rib to rotate in one direction in contact with the protruding ribs 51 A plurality of end portions 61 are provided at the front end portion, and a rear end portion has a push button connection side 60 having a male thread portion 62 formed therein, and a male thread portion 71 coupled to the female thread portion 23 of the opening / closing fixing nut 20. ) Is formed at the tip, and a plurality of insertion grooves 75 and the locking step 76 on the inner surface It has a plurality of the main body 70 formed with a predetermined distance, the main body fixing nut 80 is connected to the male screw portion 71 formed at the rear end of the main body 70 to fix the main body 70, And a push button (90) connected to the male screw portion (62) formed at one end of the pushbutton connecting shaft (60) and forming an air flow hole (91).
KR2019950053155U 1995-12-29 1995-12-29 Safety ear protector KR200153864Y1 (en)

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KR2019950053155U KR200153864Y1 (en) 1995-12-29 1995-12-29 Safety ear protector

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KR2019950053155U KR200153864Y1 (en) 1995-12-29 1995-12-29 Safety ear protector

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KR200153864Y1 true KR200153864Y1 (en) 1999-08-02

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101696270B1 (en) 2015-09-23 2017-01-16 김수봉 hearing protection earmuffs for military use
KR102451662B1 (en) 2022-03-23 2022-10-06 에스아이로직 주식회사 Electronic device for providing service for controlling degree of attenuation of noise, and control method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101696270B1 (en) 2015-09-23 2017-01-16 김수봉 hearing protection earmuffs for military use
KR102451662B1 (en) 2022-03-23 2022-10-06 에스아이로직 주식회사 Electronic device for providing service for controlling degree of attenuation of noise, and control method
KR102571656B1 (en) 2022-03-23 2023-08-28 에스아이로직 주식회사 Electronic device for generating pressure point to coordinate of ear according to wearer, and performing customized wide dynamic range compression

Also Published As

Publication number Publication date
KR970027081U (en) 1997-07-24

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