ZA876962B - Rotatable cutting bit - Google Patents
Rotatable cutting bitInfo
- Publication number
- ZA876962B ZA876962B ZA876962A ZA876962A ZA876962B ZA 876962 B ZA876962 B ZA 876962B ZA 876962 A ZA876962 A ZA 876962A ZA 876962 A ZA876962 A ZA 876962A ZA 876962 B ZA876962 B ZA 876962B
- Authority
- ZA
- South Africa
- Prior art keywords
- retainer
- rearward
- bore
- rear end
- rotatable cutting
- Prior art date
Links
- 230000000717 retained effect Effects 0.000 abstract 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
- E21C35/18—Mining picks; Holders therefor
- E21C35/19—Means for fixing picks or holders
- E21C35/197—Means for fixing picks or holders using sleeves, rings or the like, as main fixing elements
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
- Ultra Sonic Daignosis Equipment (AREA)
- Drilling Tools (AREA)
- Earth Drilling (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
- Road Repair (AREA)
- Harvester Elements (AREA)
- Threshing Machine Elements (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Table Equipment (AREA)
Abstract
A rotatable cutting tool (30) for mounting in the bore (22) of a bock comprising an elongate symmetrical body (32) having forward (34) and rearward (36) portions wherein the forward (34) portion terminates in a front end at which there is a cutting tip (44) and the rearward (36) portion is of a generally constant diameter and terminates in a rear end (46). The rearward (36) portion contains a channel adjacent the rear end (46). A resilient retainer (60) surrounds substantially all of the rearward (36) portion and extends rearwardly past the rear end (46). The retainer (60) has an inward projection (74) which is received within the channel so that the elongate body (32) and retainer are retained together. The retainer (60) has an unstressed diameter greater than the diameter of the bore (22) so that when the cutting tool (30) is inserted into the bore (22) the retainer (60) expands against the bore (22) so as to be held therein whereby the body (32) is free to rotate relative to the block (14).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US91633686A | 1986-10-07 | 1986-10-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
ZA876962B true ZA876962B (en) | 1988-07-27 |
Family
ID=25437096
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ZA876962A ZA876962B (en) | 1986-10-07 | 1987-09-16 | Rotatable cutting bit |
Country Status (10)
Country | Link |
---|---|
EP (1) | EP0264015B1 (en) |
JP (1) | JPS63161288A (en) |
AT (1) | ATE56248T1 (en) |
AU (1) | AU592017B2 (en) |
BR (1) | BR8705346A (en) |
CA (1) | CA1301781C (en) |
DE (1) | DE3764760D1 (en) |
DK (1) | DK523087A (en) |
ES (1) | ES2005372A6 (en) |
ZA (1) | ZA876962B (en) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE461165B (en) * | 1987-06-12 | 1990-01-15 | Hans Olav Norman | TOOLS FOR MINING, CUTTING OR PROCESSING OF SOLID MATERIALS |
US5303984A (en) * | 1992-11-16 | 1994-04-19 | Valenite Inc. | Cutting bit holder sleeve with retaining flange |
DE9411438U1 (en) * | 1994-07-16 | 1994-11-10 | Boart Longyear GmbH & Co. KG Hartmetallwerkzeugfabrik, 36149 Burghaun | Picks with lock protection |
DE19720635C2 (en) * | 1997-05-16 | 1999-05-12 | Betek Bergbau & Hartmetall | Chisel |
US7380888B2 (en) | 2001-04-19 | 2008-06-03 | Kennametal Inc. | Rotatable cutting tool having retainer with dimples |
DE10142438B4 (en) * | 2001-07-04 | 2007-09-13 | Betek Bergbau- Und Hartmetalltechnik Karl-Heinz Simon Gmbh & Co. Kg | Mounting arrangement for a shank bit |
DE102005051449B3 (en) | 2005-10-27 | 2007-03-01 | Betek Bergbau- Und Hartmetalltechnik Karl-Heinz Simon Gmbh & Co. Kg | Circular shank chisel, has retaining units divided between edges, which are at distance from each other and extend over part of circumference of clamping sleeve, where units form co-axial concave central section turned to convex groove base |
DE102005051450B4 (en) * | 2005-10-27 | 2010-08-05 | Betek Bergbau- Und Hartmetalltechnik Karl-Heinz Simon Gmbh & Co. Kg | Round shank chisel and chisel holder |
JP5336597B2 (en) * | 2008-08-18 | 2013-11-06 | サンドビック インテレクチュアル プロパティー アクティエボラーグ | Sleeve retainer for tool step shank |
US7789468B2 (en) * | 2008-08-19 | 2010-09-07 | The Sollami Company | Bit holder usable in bit blocks having either of a cylindrical or non-locking taper bore |
US8622482B2 (en) * | 2008-08-19 | 2014-01-07 | Phillip Sollami | Bit holder usable in bit blocks having either of a cylindrical or non-locking taper bore |
JP6636548B2 (en) * | 2018-01-31 | 2020-01-29 | エポコラム機工株式会社 | Conical bit |
US11898446B1 (en) | 2022-07-29 | 2024-02-13 | Kennametal Inc. | Tool retainer |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3519309A (en) * | 1965-08-12 | 1970-07-07 | Kennametal Inc | Rotary cone bit retained by captive keeper ring |
AU490754B2 (en) * | 1976-08-23 | 1976-11-04 | Carmet Company | Mine tool and keeper |
US4201421A (en) * | 1978-09-20 | 1980-05-06 | Besten Leroy E Den | Mining machine bit and mounting thereof |
US4575156A (en) * | 1984-03-13 | 1986-03-11 | Fansteel Inc. | Mining block and bit |
-
1987
- 1987-09-16 ZA ZA876962A patent/ZA876962B/en unknown
- 1987-09-28 AT AT87114132T patent/ATE56248T1/en not_active IP Right Cessation
- 1987-09-28 CA CA000548028A patent/CA1301781C/en not_active Expired - Lifetime
- 1987-09-28 EP EP87114132A patent/EP0264015B1/en not_active Expired - Lifetime
- 1987-09-28 AU AU79009/87A patent/AU592017B2/en not_active Ceased
- 1987-09-28 DE DE8787114132T patent/DE3764760D1/en not_active Expired - Fee Related
- 1987-10-01 BR BR8705346A patent/BR8705346A/en unknown
- 1987-10-02 ES ES8702821A patent/ES2005372A6/en not_active Expired
- 1987-10-06 DK DK523087A patent/DK523087A/en not_active Application Discontinuation
- 1987-10-06 JP JP62252293A patent/JPS63161288A/en active Pending
Also Published As
Publication number | Publication date |
---|---|
DK523087D0 (en) | 1987-10-06 |
DE3764760D1 (en) | 1990-10-11 |
JPS63161288A (en) | 1988-07-04 |
EP0264015B1 (en) | 1990-09-05 |
AU592017B2 (en) | 1989-12-21 |
DK523087A (en) | 1988-04-08 |
BR8705346A (en) | 1988-05-24 |
ATE56248T1 (en) | 1990-09-15 |
EP0264015A1 (en) | 1988-04-20 |
CA1301781C (en) | 1992-05-26 |
AU7900987A (en) | 1988-04-21 |
ES2005372A6 (en) | 1989-03-01 |
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