AT15436U3 - Ice Drill - Google Patents

Abstract

In an ice drill (1) having a one-piece light metal base body (2), which light metal base body (2) has a helical part (3) and a cutting part (4) adjoining the helical part (3), it is proposed that the cutting part (4) has at least one Tungsten carbide cutting plate (11, 12, 13) which is removably attached to the light metal base body (2), that the coil part (3) at least a first coil (6) and a second coil (7), each having a substantially trapezoidal or have rectangular cross-section, and that the first coil (6) and the second coil (7) over the entire length of the coil part (3) are arranged such that the first coil (6) in the cutting part (4) as the first carbide cutting plate holder (9 ) of the cutting part (4) is formed, and in that the second helix (7) is formed in the cutting part (4) as a second carbide cutting plate holder (10) of the cutting part (4), that on the first Hartmet allschneidplatten- holder (9) a first hard metal cutting plate (12) is fixed, and in that on the second carbide cutting plate holder (10), one of the first hard metal cutting plate (12) different, second carbide cutting plate (13) is fixed, and that the first and the second hard metal cutting plate (12, 13) are arranged spaced apart from one another for cutting a merely annular region.

Description

GM 50099/2017

07/14/2016

06/15/2017

15.10.2018 (51) Int. CI .: E21B 7/00 (2006.01)

E21B 10/44 (2006.01)

AT 15436 U3 2018-10-15

(60) Junction from PCT 2016066780 (73) Utility model: JOHANN EBERHARD GMBH (30) Priority: 07/27/2015 AT A00500 / 2015 claimed. 8503 St. Josef (AT) (56) CITATION: EP 1083294 A1 US 5213170 A US 7946355 B1 (74) representative: Gibler & Poth Patentanwälte KG 1010 Vienna (AT)

(54) ICE DRILL (57) In an ice drill (1) with a one-piece light metal base (2), which

Light metal base body (2) has a helical part (3) and a cutting part (4) adjoining the helical part (3), it is proposed that the cutting part (4) have at least one hard metal cutting plate (11, 12, 13) which is exchangeable on the

Light metal base body (2) is attached such that the coil part (3) has at least a first coil (6) and a second coil (7), each of which has an essentially trapezoidal or rectangular cross section, and that the first coil (6) and the second helix (7) are arranged along the entire length of the helical part (3), that the first helix (6) in the cutting part (4) is designed as the first hard metal cutting plate holder (9) of the cutting part (4), and that the second helix (7) is formed in the cutting part (4) as a second hard metal cutting plate holder (10) of the cutting part (4), that a first hard metal cutting plate (12) is fastened to the first hard metal cutting plate holder (9) and that on the second hard metal cutting plate holder ( 10) a second hard metal cutting plate (13) which is different from the first hard metal cutting plate (12) is fastened, and that the first and second hard metal cutting plates (12, 13) for cutting a only annular areas are spaced from each other.

Research report on GM 50099/2017

Classification of the subject of the application according to IPC:

E21B 7/00 (2006.01); E21B 10/44 (2006.01)

Classification of the application according to CPC:

E21B 7/00 (2013.01); E21B 10/44 (2013.01)

Researched test substance (classification):

E21B

Consulted online database:

EPODOC, WPI, TXT

This research report was published on May 24th, 2017

Claims (1)

Claims 1-13 created. Category*· Title of the publication: Country code, publication number, document type (applicant), publication date, text or figure if necessary Concerning claim A A A EP 1083294 Al (HILTI AG) March 14, 2001 (March 14, 2001) characters US 5213170 A (SAVITSKI) May 25, 1993 (May 25, 1993) characters US 7946355 Bl (KLUGE) May 24, 2011 (May 24, 2011) characters 1-13 1-13 1-13 Date of completion of the research: ς t 1 1 examiner: 13.09.2018 beite 1 von 1 wankmüller Alfred> Categories of the listed documents: A publication that defines the general state of the art. X Publication of particular importance: the application P document which is of importance (categories X or Y), but according to the subject cannot be published as new or on the priority date of the application simply because of this publication. inventive activity can be considered based. E Document of particular importance (Category X) from which Y Publication of importance: the subject of the application cannot be an “older right” (earlier filing date, however, should be considered as based on inventive step, if the republished, protection is possible in Austria, novelty would be considered) Make publication with one or more other publications). is associated with this category and this connection for & publication which is a member of the same patent family. is obvious to a specialist.