KR20110011927A - A shock-absorbing device for helicopter - Google Patents

A shock-absorbing device for helicopter Download PDF

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Publication number
KR20110011927A
KR20110011927A KR1020090069404A KR20090069404A KR20110011927A KR 20110011927 A KR20110011927 A KR 20110011927A KR 1020090069404 A KR1020090069404 A KR 1020090069404A KR 20090069404 A KR20090069404 A KR 20090069404A KR 20110011927 A KR20110011927 A KR 20110011927A
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South Korea
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helicopter
shock absorber
support
coupled
elastic member
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KR1020090069404A
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Korean (ko)
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KR101055575B1 (en
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장진건
이영신
강이석
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충남대학교산학협력단
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D45/00—Aircraft indicators or protectors not otherwise provided for
    • B64D45/04—Landing aids; Safety measures to prevent collision with earth's surface
    • B64D45/06—Landing aids; Safety measures to prevent collision with earth's surface mechanical
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C27/00—Rotorcraft; Rotors peculiar thereto
    • B64C27/04—Helicopters

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Vibration Dampers (AREA)

Abstract

PURPOSE: A shock-absorbing device for a helicopter is provided to absorb shock when a helicopter is landed by installing an elastic member in the bottom of a tail boom. CONSTITUTION: A shock-absorbing device for a helicopter comprises a supporter(6), an operation part(7), an elastic member(8), and a shock absorber. The supporter is downward inclined and is hinged on the bottom of a tail boom. The operation part is formed in the end of the supporter and has a smaller diameter than the supporter. The operation part has a circular bar body(71), a round bar body(72), a coil spring(9), and a ring member(R). The elastic member is coupled to the operation part. The shock absorber connects the supporter and the tail boom.

Description

헬리콥터용 완충장치{A shock-absorbing device for helicopter}A shock-absorbing device for helicopter

본 발명은 헬리콥터용 완충장치에 관한 것으로, 더욱 상세하게는 착륙시 테일로터 블레이드 보다 먼저 지면과 접촉하여 충격력을 흡수하고, 자세를 안정적으로 지지해줄 수 있도록 한 헬리콥터용 완충장치에 관한 것이다.The present invention relates to a shock absorber for a helicopter, and more particularly, to a shock absorber for a helicopter to be able to absorb the impact force and to stably support the posture in contact with the ground before landing the tail rotor blade.

도 1은 종래 헬리콥터를 나타낸 도면이다.1 is a view showing a conventional helicopter.

도 1에 나타낸 바와 같이, 일반적인 헬리콥터는 조종석이 형성된 동체(2)와, 동체(2)의 상부에 설치된 메인로터 블레이드(3)와, 동체(2)의 후방에 연장 형성된 테일붐(5)과, 상기 테일붐(5)에 설치된 테일로터 블레이드(4) 등을 포함하여 구성된다.As shown in FIG. 1, a general helicopter includes a body 2 having a cockpit, a main rotor blade 3 installed at an upper portion of the body 2, a tail boom 5 formed at the rear of the body 2, It is configured to include a tail rotor blade (4) and the like installed on the tail boom (5).

이러한 헬리콥터는 착륙시 수평을 유지한 상태로 착륙하여야 하나 급격한 기류 변화 및 조종 미숙에 의해 동체가 기울어지면서 테일로터 블레이드가 지면에 먼저 닿아 파손되는 사고가 발생될 우려가 있다.Such a helicopter should land in a horizontal state during landing, but there is a possibility that the tail rotor blades first touch the ground and be damaged due to the drastic airflow change and inadequate steering.

본 발명은 상기한 종래 기술의 문제점을 해소하기 위해 안출된 것으로, 구형상으로 된 탄성부재가 테일붐의 하부에 설치되어 착륙시 지면과 먼저 접촉되면서 충격을 흡수하도록 하고, 자세를 안정적으로 유지할 수 있도록 함으로써 테일로터의 파손을 방지할 수 있도록 한 헬리콥터용 완충장치를 제공하는데 그 목적이 있다. The present invention has been devised to solve the above problems of the prior art, the spherical elastic member is installed in the lower portion of the tail boom to absorb the shock while first contacting the ground when landing, and can maintain a stable posture The purpose of the present invention is to provide a helicopter shock absorber that can prevent damage to the tail rotor.

상기한 본 발명의 목적은, 헬리콥터의 테일붐에 장착되는 완충장치에 있어서, 상기 테일붐의 하부에 힌지결합되며 하향 경사지게 설치된 지지대; 상기 지지대의 단부에 일정 길이로 형성되며 지지대의 직경보다 작은 직경으로 형성된 작동구간부; 상기 작동구간부에 결합되며 탄성을 갖는 구형상으로 된 탄성부재를 포함하는 헬리콥터용 완충장치에 의해 달성될 수 있다.An object of the present invention, the shock absorber mounted on the tail boom of the helicopter, hinged to the lower portion of the tail boom and installed downwardly inclined; An operation section formed at an end of the support with a predetermined length and having a diameter smaller than that of the support; It can be achieved by a shock absorber for a helicopter including an elastic member of the spherical shape is coupled to the operating section.

상기 작동구간부는 상기 지지대의 하단부에 형성되며 지지대 보다 작은 직경인 원봉체; 상기 원봉체의 후단에 형성되며 원봉체 보다 직경이 큰 환봉부; 상기 원봉체의 외측 전방에 결합되는 코일스프링; 상기 코일스프링에 탄력적으로 지지되도록 외측 후방에 결합되는 링부재를 포함하는 것을 특징으로 한다.The operation section is formed on the lower end of the support and the rod body having a smaller diameter than the support; A round rod portion formed at a rear end of the circular rod and having a larger diameter than the circular rod; A coil spring coupled to the outer front of the rod; It characterized in that it comprises a ring member coupled to the outer rear to elastically support the coil spring.

상기 탄성부재는 일단부는 환봉부에 고정되고 타단부는 링부재에 결합되며 호형으로 구부러진 형상으로 된 판스프링이 원주방향으로 배열되어 다수로 형성된 것을 특징으로 한다.The elastic member is characterized in that the one end is fixed to the round bar portion, the other end is coupled to the ring member and a plurality of leaf springs are arranged in the circumferential direction bent in an arc shape.

상기 탄성부재는 일단부는 환봉부에 고정되고 타단부는 제1링부재에 결합된 제1판스프링; 일단부는 환봉부에 고정되고 타단부는 제2링부재에 결합되며 제1판스프링보다 길이가 짧은 제2판스프링을 포함하는 것을 특징으로 한다.The elastic member may include a first plate spring having one end fixed to the round bar and the other end coupled to the first ring member; One end is fixed to the round bar and the other end is coupled to the second ring member, characterized in that it comprises a second leaf spring shorter than the first leaf spring.

상기 제1 및 제2판스프링은 교호 형성되는 것을 특징으로 한다.The first and second leaf springs are formed alternately.

본 발명에 따르면 구형상으로 된 탄성부재가 테일붐의 하부에 설치되어 착륙시 지면과 먼저 접촉되도록 함으로써 충격을 흡수할 수 있고 테일로터의 파손을 방지할 수 있는 효과가 있다.According to the present invention, the spherical elastic member is installed in the lower part of the tail boom to be in contact with the ground first when landing, thereby absorbing shock and preventing breakage of the tail rotor.

이하 본 발명의 바람직한 실시예를 첨부된 도면을 토대로 상세하게 설명하면 다음과 같다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 2는 본 발명에 따른 완충장치가 설치된 헬리콥터를 나타낸 도면, 도 3은 도 2에 도시된 본 발명에 따른 헬리콥터용 완충장치를 나타낸 사시도, 도 4는 본 발명에 따른 헬리콥터용 완충장치의 일 실시예를 나타낸 상세 도면이다.Figure 2 is a view showing a helicopter equipped with a shock absorber according to the present invention, Figure 3 is a perspective view showing a shock absorber for a helicopter according to the present invention shown in Figure 2, Figure 4 is an embodiment of a shock absorber for a helicopter according to the present invention Detailed drawing showing an example.

도 2 내지 도 4에 나타낸 바와 같이, 본 발명에 따른 헬리콥터용 완충장치(A)는 조종석이 형성된 동체(2), 상기 동체(2)의 상부에 설치된 메인로터 블레이드(3), 상기 동체(2)의 후방에 연장 형성된 테일붐(5), 상기 테일붐(5)에 설치된 테일로터 블레이드(4)를 포함하는 헬리콥터에 장착된다.As shown in Figures 2 to 4, the shock absorber (A) for a helicopter according to the present invention is a body 2, a cockpit is formed, the main rotor blade (3) installed on top of the body 2, the body 2 Tail tail boom (5) formed in the rear of the), is mounted on the helicopter including a tail rotor blade (4) installed on the tail boom (5).

본 발명에 따른 헬리콥터용 완충장치(A)는, Helicopter shock absorber (A) according to the present invention,

상기 테일붐(5)의 하부에 힌지결합되며 하향 경사지게 설치된 지지대(6);A support 6 hinged to a lower portion of the tail boom 5 and installed downwardly inclined;

상기 지지대(6)의 단부에 일정 길이로 형성되며 지지대(6) 보다 작은 직경을 갖는 작동구간부(7);An operating section (7) having a predetermined length at an end of the support (6) and having a diameter smaller than that of the support (6);

상기 작동구간부(7)에 결합되며 탄성을 갖는 구체로 된 탄성부재(8)를 포함하여 이루어진다. It comprises an elastic member (8) made of a sphere having elasticity and coupled to the operating section (7).

도 3 및 도 4에 나타낸 바와 같이, As shown in Figs. 3 and 4,

상기 지지대(6)는 일정 길이를 갖는 봉체로써 테일붐(5)과 결합되도록 힌지부가 상단에 형성되고, 하단에는 작동구간부(7)가 형성된다.The support 6 is a rod having a predetermined length, the hinge portion is formed at the upper end to be coupled to the tail boom 5, the operating section 7 is formed at the lower end.

상기 작동구간부(7)는 지지대(6)의 하단부에 형성되며 지지대(6) 보다 작은 직경으로 가공된 원봉체(71)와, 상기 원봉체(71)의 후단에 형성되며 원봉체(71) 보다 직경이 큰 환봉부(72)로 구성된다.The operation section 7 is formed at the lower end of the support 6 and the cylindrical body 71 processed to a diameter smaller than the support 6, and formed at the rear end of the cylindrical body 71 and the circular rod 71 It consists of a round bar 72 which is larger in diameter.

그리고 상기 원봉체(71)의 외측 전방에 결합되는 코일스프링(9)과, 상기 코일스프링(9)에 탄력적으로 지지되도록 외측 후방에 결합되는 링부재(R)를 더 포함한다.And a coil spring 9 coupled to the outer front of the circular rod 71 and a ring member R coupled to the outer rear so as to be elastically supported by the coil spring 9.

상기 환봉부(72)는 작동구간부(7)보다 직경이 크고 후단에 형성되는 일종의 봉체로써 링부재(R)를 끼운 후 나사결합 또는 용접 등의 방법에 의해 고정 설치된 다.The round bar 72 is a kind of rod formed in the rear end larger than the diameter of the operation section 7 is inserted into the ring member (R) and is fixed by screwing or welding or the like method.

도 3 및 도 4에 나타낸 바와 같이, 탄성부재(8)는 작동구간부(7)에 결합되며 탄성을 갖는 구형상으로써 마치 럭비공 형상으로 형성되어 충격이 가해질때 수축되면서 완충기능을 하게 된다.As shown in Figures 3 and 4, the elastic member 8 is coupled to the operation section 7 and is a spherical shape having elasticity as if it is formed in a rugby ball shape and contracts when an impact is applied, thereby providing a cushioning function.

상기 탄성부재(8)는 일단부는 환봉부(72)에 고정되고 타단부는 링부재(R)에 결합되며 호형으로 구부러진 형상으로 된 판스프링(82)이 원주방향으로 다수 배열되어 구성된다.One end of the elastic member 8 is fixed to the round bar 72, and the other end is coupled to the ring member R, and a plurality of leaf springs 82 having a curved shape in an arc shape are arranged in the circumferential direction.

여기서 상기 링부재(R)는 단일로 형성된다.Here, the ring member (R) is formed in a single.

상기 판스프링(82)의 일단부는 환봉부(72) 및 링부재(R)의 외면에 스폿 용접되거나 또는 고리 형태로 걸려 고정된다.One end of the leaf spring 82 is spot welded to the outer surface of the round bar portion 72 and the ring member (R) or hung in a ring shape.

따라서 환봉부(72) 및 링부재(R)의 외면에 다수의 고리부가 형성될 수도 있다.Therefore, a plurality of rings may be formed on the outer surface of the round bar 72 and the ring member (R).

상기와 같이 구성된 본 발명의 일 실시예에 대한 결합관계를 설명하기로 한다.A coupling relationship for an embodiment of the present invention configured as described above will be described.

상기 지지대(6)의 상단에 형성된 힌지부를 테일붐(5)의 하부측에 힌지결합시키고, 작동구간부(7)에 코일스프링(9)과 한개 이상의 링부재(R)를 끼워 결합시킨 후 환봉부(72)를 결합한다.The hinge part formed at the upper end of the support 6 is hinged to the lower side of the tail boom 5, and the coil spring 9 and the at least one ring member R are coupled to the operation section 7, and then the round bar is engaged. Joining section 72.

이후 판스프링(82)의 일단부는 환봉부(72)에 고정되고, 타단부는 링부재(R) 에 고정됨으로써 호형으로 구부러진 형태가 된다.Thereafter, one end of the leaf spring 82 is fixed to the round bar 72, and the other end is fixed to the ring member R to be bent in an arc shape.

상기와 같이 결합이 완료된 완충장치의 작동을 살펴보면,Looking at the operation of the shock absorber is completed as described above,

헬리콥터가 착륙하는 동안 테일붐(5)이 하부로 기울게 되면 먼저 탄성부재(8)가 지면에 닿으면 그 충격력이 호형으로 된 판스프링(82)을 압축시키면서 완화된다.When the tail boom 5 is inclined downward while the helicopter is landing, first, when the elastic member 8 touches the ground, the impact force is alleviated while compressing the arc-shaped leaf spring 82.

이때 판스프링(82)이 압축되어 양측으로 늘어나게 되며, 링부재(R)가 작동구간부(7)를 타고 전진하게 된다.At this time, the leaf spring 82 is compressed to extend to both sides, the ring member (R) is advanced in the operating section (7).

이러한 탄성부재(8)의 완충작동에 의해 충격력이 분산됨으로써 완충효과가 얻어지게 되고, 이 완충작용에 의해 테일붐(5)이 지면을 향해 급격히 기울어짐을 방지할 수 있고, 이에 따라 테일로터(4)의 파손을 방지할 수 있게 된다.As the impact force is dispersed by the buffering operation of the elastic member 8, a shock absorbing effect is obtained, and the shock absorbing effect prevents the tail boom 5 from being sharply inclined toward the ground, and thus the tail rotor 4 ) Can be prevented from being damaged.

한편 상기 지지대(6)의 상부와 테일붐(5)를 연결하는 완충기(S)가 더 설치된다. Meanwhile, a shock absorber S for connecting the upper portion of the support 6 to the tail boom 5 is further installed.

상기 완충기(S)의 일 예는 쇽업쇼버인 것이며, 상단은 테일붐(5)에 힌지결합되고 하단은 지지대(6)의 상부에 힌지결합된다.One example of the shock absorber (S) is a shock absorber, the upper end is hinged to the tail boom (5) and the lower end is hinged to the upper portion of the support (6).

한편 본 발명의 다른 실시예로서, 링부재(R)를 다수로 구성할수 있으며 설명의 편의상 제1 및 제2링부재(R1,R2)로 특정한다.On the other hand, as another embodiment of the present invention, the ring member (R) can be configured in a number and for convenience of description it is specified as the first and second ring members (R1, R2).

도 5는 본 발명에 따른 헬리콥터용 완충장치의 다른 실시예를 나타낸 상세 도면이다.5 is a detailed view showing another embodiment of the shock absorber for a helicopter according to the present invention.

도 5에 나타낸 바와 같이, 탄성부재(8)는 제1 및 제2링부재(R1,R2)가 적용되고 이에 결합되는 제1 및 제2판스프링(821,822)이 교호 배치되어 구형상을 이루도록 한 것이다.As shown in FIG. 5, the elastic member 8 includes a first and second plate springs 821 and 822 to which the first and second ring members R1 and R2 are applied and coupled thereto to form a spherical shape. will be.

즉, 탄성부재(8)의 다른 실시예는 That is, another embodiment of the elastic member 8

일단부는 환봉부(72)에 고정되고 타단부는 제1링부재(R1)에 결합된 제1판스프링(821);A first plate spring 821 having one end fixed to the round bar 72 and the other end coupled to the first ring member R1;

일단부는 환봉부(72)에 고정되고 타단부는 제2링부재(R2)에 결합되며 제1판스프링(821)보다 길이가 짧은 제2판스프링(822)을 포함하는 것이다.One end is fixed to the round bar 72, the other end is coupled to the second ring member (R2) and includes a second leaf spring 822 shorter than the first leaf spring 821.

그리고 상기 제1 및 제2판스프링(821,822)은 교호 배치된다.The first and second leaf springs 821 and 822 are alternately arranged.

상기 다른 실시예의 결합 및 작동관계는 상술한 첫번째 실시예와 대동소이하므로 이에 대한 상세한 설명은 생략하기로 한다.The combination and operation relationship of the other embodiment is similar to the first embodiment described above, so a detailed description thereof will be omitted.

비록 본 발명이 상기 언급된 바람직한 실시예와 관련하여 설명되어졌지만, 발명의 요지와 범위로부터 벗어남이 없이 다양한 수정 및 변형이 가능한 것은 당업자라면 용이하게 인식할 수 있을 것이며, 이러한 변경 및 수정은 모두 첨부된 청구의 범위에 속함은 자명하다.Although the present invention has been described in connection with the above-mentioned preferred embodiments, it will be apparent to those skilled in the art that various modifications and variations can be made without departing from the spirit and scope of the invention, It is obvious that the claims fall within the scope of the claims.

도 1은 종래 헬리콥터를 나타낸 도면.1 is a view showing a conventional helicopter.

도 2는 본 발명에 따른 완충장치가 설치된 헬리콥터를 나타낸 도면, 2 is a view showing a helicopter equipped with a shock absorber according to the present invention,

도 3은 도 2에 도시된 본 발명에 따른 헬리콥터용 완충장치를 나타낸 사시도,3 is a perspective view showing a shock absorber for a helicopter according to the present invention shown in FIG.

도 4는 본 발명에 따른 헬리콥터용 완충장치의 일 실시예를 나타낸 상세 도면, 4 is a detailed view showing an embodiment of the shock absorber for a helicopter according to the present invention;

도 5는 본 발명에 따른 헬리콥터용 완충장치의 다른 실시예를 나타낸 상세 도면.5 is a detailed view showing another embodiment of the shock absorber for a helicopter according to the present invention.

* 도면의 주요 부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings

6 : 지지대 7 : 작동구간부6: support 7: operating section

8 : 탄성부재 9 : 코일스프링8: elastic member 9: coil spring

72 : 환봉부 82 : 판스프링72: round bar 82: leaf spring

R : 링부재 R: Ring member

Claims (4)

헬리콥터의 테일붐(5)에 장착되는 완충장치에 있어서,In the shock absorber mounted on the tail boom 5 of the helicopter, 상기 테일붐(5)의 하부에 힌지결합되며 하향 경사지게 설치된 지지대(6);A support 6 hinged to a lower portion of the tail boom 5 and installed downwardly inclined; 상기 지지대(6)의 단부에 일정 길이로 형성되며 지지대(6) 보다 작은 직경을 갖는 작동구간부(7);An operating section (7) having a predetermined length at an end of the support (6) and having a diameter smaller than that of the support (6); 상기 작동구간부(7)에 결합되며 탄성을 갖는 구체로 된 탄성부재(8);An elastic member (8) formed of a sphere having elasticity and coupled to the operation section (7); 상기 지지대(6)와 테일붐(5)을 연결하는 완충기(S)로 구성되며,It consists of a shock absorber (S) for connecting the support 6 and the tail boom (5), 상기 작동구간부(7)는 The operation section 7 is 상기 지지대(6)의 하단부에 형성되며 지지대(6) 보다 작은 직경인 원봉체(71);A round rod body 71 formed at a lower end of the support 6 and having a diameter smaller than that of the support 6; 상기 원봉체(71)의 후단에 형성되며 원봉체(71) 보다 직경이 큰 환봉부(72);A round bar portion 72 formed at a rear end of the round rod body 71 and having a larger diameter than the round rod body 71; 상기 원봉체(71)의 외측 전방에 결합되는 코일스프링(9);Coil springs (9) coupled to the outer front of the rod (71); 상기 코일스프링(9)에 탄력적으로 지지되도록 외측 후방에 결합되는 링부재(R)Ring member (R) coupled to the outer rear to elastically support the coil spring (9) 를 포함하는 것을 특징으로 하는 헬리콥터용 완충장치.Helicopter shock absorber comprising a. 제 1항에 있어서,The method of claim 1, 상기 탄성부재(8)는 The elastic member 8 is 일단부는 환봉부(72)에 고정되고 타단부는 링부재(R)에 결합되며 호형으로 구부러진 형상으로 된 판스프링(82)이 원주방향으로 배열되어 다수로 형성된 것을 특징으로 하는 헬리콥터용 완충장치.One end is fixed to the round bar (72), the other end is coupled to the ring member (R) and the shock absorber for helicopters, characterized in that formed in a plurality of leaf springs (82) arranged in a circumferential direction. 제 1항에 있어서,The method of claim 1, 상기 탄성부재(8)는 The elastic member 8 is 일단부는 환봉부(72)에 고정되고 타단부는 제1링부재(R1)에 결합된 제1판스프링(821);A first plate spring 821 having one end fixed to the round bar 72 and the other end coupled to the first ring member R1; 일단부는 환봉부(72)에 고정되고 타단부는 제2링부재(R2)에 결합되며 제1판스프링(821)보다 길이가 짧은 제2판스프링(822)One end is fixed to the round bar 72, the other end is coupled to the second ring member (R2), the second leaf spring 822 shorter than the first leaf spring 821 을 포함하는 것을 특징으로 하는 헬리콥터용 완충장치.Helicopter shock absorber comprising a. 제 3항에 있어서,The method of claim 3, wherein 상기 제1 및 제2판스프링(821,822)은 교호 형성되는 것을 특징으로 하는 헬리콥터용 완충장치.The first and second leaf springs (821, 822) is a helicopter shock absorber, characterized in that formed alternately.
KR1020090069404A 2009-07-29 2009-07-29 Helicopter Shock Absorbers KR101055575B1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107187587A (en) * 2017-05-06 2017-09-22 深圳市雷凌广通技术研发有限公司 A kind of Intelligent unattended machine taken photo by plane for video display
CN107187588A (en) * 2017-05-06 2017-09-22 深圳市雷凌广通技术研发有限公司 A kind of Intelligent unattended machine with safety and shock-absorption function
CN108945444A (en) * 2018-08-30 2018-12-07 无锡莱特杰米科技发展有限公司 A kind of unmanned aerial photography machine of the wedding celebration with landing protection structure

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4815678A (en) * 1987-12-04 1989-03-28 The Boeing Company Pivotally mounted high energy absorbing aircraft tail skid assembly having predetermined failure mode
AU5167396A (en) * 1995-09-14 1997-04-01 Sikorsky Aircraft Corporation Energy absorbing landing gear/tail skid including means for indicating the magnitude of impact loads
JP2000344196A (en) * 1999-06-07 2000-12-12 Mitsubishi Heavy Ind Ltd Tail damper for aircraft
KR101015297B1 (en) * 2008-12-29 2011-02-15 충남대학교산학협력단 a shock-absorbing device for helicopter

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107187587A (en) * 2017-05-06 2017-09-22 深圳市雷凌广通技术研发有限公司 A kind of Intelligent unattended machine taken photo by plane for video display
CN107187588A (en) * 2017-05-06 2017-09-22 深圳市雷凌广通技术研发有限公司 A kind of Intelligent unattended machine with safety and shock-absorption function
CN107187587B (en) * 2017-05-06 2019-12-17 广厦传媒有限公司 A intelligent unmanned aerial vehicle for film and television aerial photography
CN108945444A (en) * 2018-08-30 2018-12-07 无锡莱特杰米科技发展有限公司 A kind of unmanned aerial photography machine of the wedding celebration with landing protection structure

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