IES20190096U1 - Drill bit assembly for percussion drill tools - Google Patents
Drill bit assembly for percussion drill toolsInfo
- 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
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>
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)
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 |
-
2018
- 2018-11-22 IE IES20180460A patent/IES87042B2/en unknown
-
2019
- 2019-06-20 IE IE20190096U patent/IES87163Y1/en unknown
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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