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1. (WO2018088770) EXCAVATION BIT AND EXCAVATION STEEL PIPE
Latest bibliographic data on file with the International Bureau    Submit observation

Pub. No.: WO/2018/088770 International Application No.: PCT/KR2017/012522
Publication Date: 17.05.2018 International Filing Date: 07.11.2017
IPC:
E21B 10/32 (2006.01) ,E21B 10/42 (2006.01) ,E21B 10/62 (2006.01) ,E02D 5/38 (2006.01) ,E02D 7/30 (2006.01)
Applicants: C&P TECH CO., LTD.[KR/KR]; (Sanbon-dong) #201, 35, LS-ro 182beon-gil Gunpo-si Gyeonggi-do 15807, KR
DONGLIM INDUSTRIAL CO., LTD.[KR/KR]; (Jeongwang-dong) 37, Jeongwangcheon-ro Siheung-si Gyeonggi-do 15115, KR
Inventors: KYE, Jin Tae; KR
KIM, Gwi Pal; KR
Agent: KIM, Nam Sik; KR
LEE, In Haeng; KR
Priority Data:
10-2016-014984510.11.2016KR
Title (EN) EXCAVATION BIT AND EXCAVATION STEEL PIPE
(FR) TRÉPAN D'EXCAVATION ET TUYAU EN ACIER D'EXCAVATION
(KO) 굴착용 비트 및 굴착용 강관
Abstract: front page image
(EN) The present invention relates to an excavation bit capable of facilitating the installation of a steel pipe, and to an excavation steel pipe. The excavation bit comprises: a bit body formed elongated in the longitudinal direction so as to be insertable into the excavation steel pipe having a pipe shape; a bit head part coupled to one surface of the bit body, and having an excavation surface formed on a tip of the bit head part and a wing bit accommodating groove formed on an outer circumferential surface of the bit head part; a wing bit formed elongated in the longitudinal direction and installed near the excavation surface of the bit head part such that the wing bit can be folded and unfolded; and a temporary catching device protruding from the bit body in the outer diameter direction and installed so as to catch onto a catching projection portion of the excavation steel pipe so that the excavation steel pipe progresses together with the bit body in the direction of progress of excavation while being inserted by the bit body, and only the bit body emerges externally while leaving the excavation steel pipe behind when the bit body moves backward in the direction opposite to the direction of progress of excavation.
(FR) La présente invention concerne un trépan d'excavation permettant de faciliter l'installation d'un tuyau en acier, et un tuyau en acier d'excavation. Le trépan d'excavation comprend : un corps de trépan de forme allongée dans la direction longitudinale de façon à pouvoir être introduit dans le tuyau en acier d'excavation ayant une forme de tuyau ; une partie tête de trépan couplée à une surface du corps de trépan, et comportant une surface d'excavation formée sur un bout de la partie tête de trépan et une rainure de réception de trépan à ailettes formée sur une surface circonférentielle extérieure de la partie tête de trépan ; un trépan à ailettes de forme allongée dans la direction longitudinale et installé à proximité de la surface d'excavation de la partie tête de trépan de façon à pouvoir plier et déplier le trépan à ailettes ; et un dispositif de saisie temporaire faisant saillie du corps de trépan dans la direction de diamètre extérieur et installé de façon à saisir une partie en saillie de saisie du tuyau en acier d'excavation de sorte que le tuyau en acier d'excavation progresse conjointement avec le corps de trépan dans le sens de progression d'excavation tout en étant inséré par le corps de trépan, et que seul le corps de trépan émerge à l'extérieur tout en laissant le tuyau en acier d'excavation en arrière lorsque le corps de trépan se déplace vers l'arrière dans le sens opposé au sens de progression d'excavation.
(KO) 본 발명은 강관의 설치를 용이하게 할 수 있는 굴착용 비트 및 굴착용 강관에 관한 것으로서, 파이프 형태의 굴착용 강관에 삽입될 수 있도록 길이방향으로 길게 형성되는 비트 몸체와, 상기 비트 몸체의 일면에 결합되어 첨단에 굴착면이 형성되고, 외경면에 윙 비트 수용홈이 형성되는 비트 헤드부와, 길이방향으로 길게 형성되고, 상기 비트 헤드부의 상기 굴착면의 인근에 펼침 및 접힘이 가능하게 설치되는 윙 비트 및 상기 굴착용 강관이 상기 비트 몸체에 의해 삽입되어져서 상기 비트 몸체와 함께 굴착 진행 방향을 따라 진행하고, 상기 비트 몸체가 굴착 진행 방향의 반대 방향으로 후퇴할 때 상기 굴착용 강관은 남겨 놓고 상기 비트 몸체만 외부로 빠져나올 수 있도록, 상기 비트 몸체로부터 외경 방향으로 돌출되어 상기 굴착용 강관의 걸림턱부에 걸리도록 설치되는 임시 걸림 장치를 포함할 수 있다.
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)