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1. (WO2019050066) LINEAR ACTUATOR HAVING FREE FALL FUNCTION
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Pub. No.: WO/2019/050066 International Application No.: PCT/KR2017/009855
Publication Date: 14.03.2019 International Filing Date: 08.09.2017
IPC:
F16H 25/22 (2006.01) ,F16H 25/24 (2006.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
H
GEARING
25
Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
18
for conveying or interconverting oscillating or reciprocating motions
20
Screw mechanisms
22
with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
H
GEARING
25
Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
18
for conveying or interconverting oscillating or reciprocating motions
20
Screw mechanisms
24
Elements essential to such mechanisms, e.g. screws, nuts
Applicants:
한화에어로스페이스 주식회사 HANWHA AEROSPACE CO., LTD. [KR/KR]; 경상남도 창원시 성산구 창원대로 1204 1204, Changwon-daero, Seongsan-gu Changwon-si, Gyeongsangnam-do 51542, KR
Inventors:
김태주 KIM, Tae Ju; KR
엄새빈 UM, Sae Bin; KR
김은수 KIM, Eun Soo; KR
박상준 PARK, Sang Joon; KR
Agent:
최호석 CHOI, Ho Suk; KR
Priority Data:
10-2017-011445007.09.2017KR
Title (EN) LINEAR ACTUATOR HAVING FREE FALL FUNCTION
(FR) ACTIONNEUR LINÉAIRE AYANT UNE FONCTION DE CHUTE LIBRE
(KO) 자유낙하 기능을 구비한 리니어 액추에이터
Abstract:
(EN) The present invention relates to a linear actuator having a free fall function and, specifically, to a linear actuator which has a piston rod member disposed at one side of a cylinder body and capable of moving back and forth and moves the piston rod member back and forth by using a rotational force of a rotary motor. When a jamming phenomenon, in which the piston rod member is stopped by the fixing of an operating screw member and a screw member, occurs, the linear actuator enables the piston rod member to free-fall in a direction in which a load is applied, so as to secure the maximum extension length of the piston rod member, thereby ensuring safety in an emergency.
(FR) La présente invention concerne un actionneur linéaire ayant une fonction de chute libre et, spécifiquement, un actionneur linéaire qui comporte un élément de tige de piston disposé sur un côté d’un corps de cylindre et pouvant se déplacer en va-et-vient et déplace l’élément de tige de piston en va-et-vient au moyen d’une force de rotation d’un moteur rotatif. Lorsqu’un phénomène de coincement, dans lequel l’élément de tige de piston est arrêté par la fixation d’un élément de vis d’actionnement et d’un élément de vis, se produit, l’actionneur linéaire permet à l’élément de tige de piston de tomber en chute libre dans une direction dans laquelle une charge est appliquée, de façon à fixer la longueur d’extension maximale de l’élément de tige de piston, de façon à assurer la sécurité en cas d’urgence.
(KO) 본 발명은 자유낙하 기능을 구비한 리니어 액추에이터에 관한 것으로 실린더 본체의 일 측에 전, 후 이동 가능한 피스톤 로드부재를 회전 모터의 회전력으로 전, 후 이동시키는 리니어 액추에이터에서 작동 나사부재와 스크류부재의 고착에 의한 피스톤 로드부재가 정지되는 재밍(Jamming) 현상 발생 시 피스톤 로드부재를 하중이 작용되는 방향으로 자유 낙하 시켜 피스톤 로드부재의 최대 신장 길이를 확보함으로써 비상 시에 안전성을 확보할 수 있다.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: Korean (KO)
Filing Language: Korean (KO)