IES20190096U1 - Drill bit assembly for percussion drill tools - Google Patents

Drill bit assembly for percussion drill tools

Info

Publication number
IES20190096U1
IES20190096U1 IES20190096U IE20190096U IES20190096U1 IE S20190096 U1 IES20190096 U1 IE S20190096U1 IE S20190096 U IES20190096 U IE S20190096U IE 20190096 U IE20190096 U IE 20190096U IE S20190096 U1 IES20190096 U1 IE S20190096U1
Authority
IE
Ireland
Prior art keywords
bit
percussion
drill
drive
drive ring
Prior art date
Application number
IES20190096U
Other versions
IES87163Y1 (en
Inventor
Purcell Joseph
Original Assignee
Mincon Int Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mincon Int Ltd filed Critical Mincon Int Ltd
Publication of IES20190096U1 publication Critical patent/IES20190096U1/en
Publication of IES87163Y1 publication Critical patent/IES87163Y1/en

Links

Landscapes

  • Percussive Tools And Related Accessories (AREA)

Abstract

The present invention relates to a drill bit assembly for fluid-operated percussion drill tools comprising a percussion bit having a head portion and a bit retaining portion. Engagement means are provided on the head portion engageable with complementary engagement means on a drive ring whereby rotational drive from the drive ring may be transmitted to the percussion bit. The assembly also comprises bit retaining means adapted for engagement with the bit retaining portion of the percussion bit to retain the percussion bit in the drill bit assembly. Connection means on the drive ring are adapted for connecting the drive ring to a drive means of the fluid-operated percussion drill tool. According to a first aspect, the drive ring comprises a plurality of separable part-annular drive dog segments, wherein the bit retaining means are provided on at least two of the drive dog segments. According to a second aspect the head portion of the bit comprises a main body and a plurality of bit inserts engaged therewith, and wherein the engagement means is provided by the bit inserts. <Figure 1>
IE20190096U 2018-11-22 2019-06-20 Drill bit assembly for percussion drill tools IES87163Y1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IES20180460A IES87042B2 (en) 2018-11-22 2018-11-22 Drill bit assembly for percussion drill tools

Publications (2)

Publication Number Publication Date
IES20190096U1 true IES20190096U1 (en) 2020-05-27
IES87163Y1 IES87163Y1 (en) 2020-09-30

Family

ID=67623429

Family Applications (2)

Application Number Title Priority Date Filing Date
IES20180460A IES87042B2 (en) 2018-11-22 2018-11-22 Drill bit assembly for percussion drill tools
IE20190096U IES87163Y1 (en) 2018-11-22 2019-06-20 Drill bit assembly for percussion drill tools

Family Applications Before (1)

Application Number Title Priority Date Filing Date
IES20180460A IES87042B2 (en) 2018-11-22 2018-11-22 Drill bit assembly for percussion drill tools

Country Status (1)

Country Link
IE (2) IES87042B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20230151694A1 (en) 2020-03-30 2023-05-18 Mincon International Limited Flushing and connection arrangements for percussion drill tools

Also Published As

Publication number Publication date
IES20180460A2 (en) 2019-08-21
IES87042B2 (en) 2019-08-21
IES87163Y1 (en) 2020-09-30

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