RO90581B1 - Tubular knife - Google Patents
Tubular knifeInfo
- Publication number
- RO90581B1 RO90581B1 RO114425A RO11442584A RO90581B1 RO 90581 B1 RO90581 B1 RO 90581B1 RO 114425 A RO114425 A RO 114425A RO 11442584 A RO11442584 A RO 11442584A RO 90581 B1 RO90581 B1 RO 90581B1
- Authority
- RO
- Romania
- Prior art keywords
- extending
- inner periphery
- knife
- channels
- teeth
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/04—Drills for trepanning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2251/00—Details of tools for drilling machines
- B23B2251/14—Configuration of the cutting part, i.e. the main cutting edges
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2251/00—Details of tools for drilling machines
- B23B2251/40—Flutes, i.e. chip conveying grooves
- B23B2251/408—Spiral grooves
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling Tools (AREA)
- Milling Processes (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
- Cutting Tools, Boring Holders, And Turrets (AREA)
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
- Turning (AREA)
- Knives (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
Inventia se refera la un cutit tubular, conform inventiei principale cuprinsa în brevetul RSR nr. 84676, avand un corp prevazut cu un perete lateral, în general, tubular. Peretele lateral respectiv avand niste dinti distantati circcumferential pe fata frontala a capatului de lucru si niste canale elicoidale în jurul periferiei sale exterioare, ce se extind în sus dintre dinti distantati circumferential pe fata frontala a capatului de lucru si niste canale elicoidale în jurul periferiei sale exterioare, ce se extind în sus dintre dintii succesivi radial. Aceste canale sunt conjugate cu niste degajari ce se extind radial în afara, de la periferia interioara a peretelui lateral la canalele respective între dintii succesivi pentru a usura eliminarea aschiilor produse de muchiile taietoare respective. Radial în afara si în sus în canalele mentionate fiecare portiune degajata are o fata conducatoare ce se întinde radial extinzandu-se în sus la portiunea radiala interioara a fiecarei muchii taietoare. Periferia interioara a fiecarui dinte este degajata într-o directie radiala în afara pentru a realiza un spatiu liber de trecere radual ce se întinde corcumferential înre periferia interna a dintelui si miezul central format în piesa de lucru de catre cutit întinzandu-se posterior de la o linie de intersectie dintre periferia interna a dintelui si miezul central format în piesa de lucru de catre cutit. Acest spatiu liber de trecere întinzandu-se posterior de la o linie de intersectie dintre periferia interioara respectiva si fata conducatoare a fiecarei portiuni degajate pe o distanta nu mai mare de 1mm. Cutitul este prevazut cu un spatiu de treceThe invention relates to a tubular knife according to the main invention contained in the RSR patent no. 84676, having a body provided with a generally tubular lateral wall. The respective lateral wall having circularly spaced teeth spaced on the front end of the working end and helical channels around its outer periphery extending upwardly from the teeth circumferentially spaced on the front end of the working end and some helical grooves around its outer periphery , extending upwardly from successive radial teeth. These channels are conjugated with some openings extending radially outwardly from the inner periphery of the side wall to the respective channels between the successive teeth to ease the removal of the blades produced by the respective cutting edges. Radically out and up in the said channels, each exposed portion has a leading face extending radially extending to the radial inner portion of each cutting edge. The inner periphery of each tooth is released in a radially outward direction to provide a free ride clearance space extending corcumferentially from the inner periphery of the tooth and the central core formed in the workpiece by the knife extending rearward from a intersection line between the inner periphery of the tooth and the center core formed in the work piece by the knife. This free passage space extending rearward from a line of intersection between the respective inner periphery and the leading face of each portion, which extends over a distance of no more than 1 mm. The knife is provided with a passage space
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US06/518,637 US4538944A (en) | 1981-09-21 | 1983-07-29 | Annular cutter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RO90581A7 RO90581A7 (en) | 1987-01-30 |
| RO90581B1 true RO90581B1 (en) | 1987-01-31 |
Family
ID=24064826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RO114425A RO90581B1 (en) | 1983-07-29 | 1984-04-30 | Tubular knife |
Country Status (25)
| Country | Link |
|---|---|
| JP (1) | JPS6039007A (en) |
| AR (1) | AR231502A1 (en) |
| AU (1) | AU567545B2 (en) |
| BG (1) | BG48687A3 (en) |
| BR (1) | BR8403392A (en) |
| CA (1) | CA1204307A (en) |
| CH (1) | CH657552A5 (en) |
| CS (1) | CS254977B2 (en) |
| DE (1) | DE3409568A1 (en) |
| ES (1) | ES289252Y (en) |
| FR (1) | FR2549752B2 (en) |
| GB (1) | GB2144063B (en) |
| GR (1) | GR82212B (en) |
| HU (1) | HU199720B (en) |
| IL (1) | IL72243A (en) |
| IT (1) | IT1177621B (en) |
| MX (1) | MX159645A (en) |
| NL (1) | NL8401138A (en) |
| NO (1) | NO162007C (en) |
| NZ (1) | NZ207483A (en) |
| PL (1) | PL145481B1 (en) |
| RO (1) | RO90581B1 (en) |
| SE (1) | SE456566B (en) |
| YU (1) | YU75884A (en) |
| ZA (1) | ZA844992B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4682004B2 (en) * | 2005-09-28 | 2011-05-11 | 大見工業株式会社 | Hole cutter |
| CN110732695A (en) * | 2019-10-25 | 2020-01-31 | 西安石油大学 | Machine presss from both sides detachable deep hole reducing boring cutter device |
| KR102546625B1 (en) * | 2020-07-13 | 2023-06-23 | 오소연 | Walking assistance device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3086410A (en) * | 1961-01-23 | 1963-04-23 | Zimmermann Lukas | Trepanning tool |
| FR1568265A (en) * | 1968-03-22 | 1969-05-23 | ||
| US3609056A (en) * | 1969-06-05 | 1971-09-28 | Everett D Hougen | Hole cutter |
| US4322187A (en) * | 1980-06-18 | 1982-03-30 | Hougen Everett D | Annular hole cutter |
| CA1190419A (en) * | 1981-09-21 | 1985-07-16 | Everett D. Hougen | Annular cutter |
-
1984
- 1984-03-09 NO NO840924A patent/NO162007C/en unknown
- 1984-03-09 AU AU25452/84A patent/AU567545B2/en not_active Ceased
- 1984-03-09 SE SE8401304A patent/SE456566B/en not_active IP Right Cessation
- 1984-03-13 NZ NZ207483A patent/NZ207483A/en unknown
- 1984-03-15 DE DE19843409568 patent/DE3409568A1/en not_active Ceased
- 1984-03-19 CA CA000449885A patent/CA1204307A/en not_active Expired
- 1984-03-27 IT IT47942/84A patent/IT1177621B/en active
- 1984-04-10 NL NL8401138A patent/NL8401138A/en not_active Application Discontinuation
- 1984-04-12 JP JP59071897A patent/JPS6039007A/en active Granted
- 1984-04-13 GR GR74422A patent/GR82212B/el unknown
- 1984-04-23 MX MX201105A patent/MX159645A/en unknown
- 1984-04-27 YU YU00758/84A patent/YU75884A/en unknown
- 1984-04-30 RO RO114425A patent/RO90581B1/en unknown
- 1984-05-11 GB GB08412070A patent/GB2144063B/en not_active Expired
- 1984-06-25 FR FR8409989A patent/FR2549752B2/en not_active Expired
- 1984-06-27 IL IL8472243A patent/IL72243A/en unknown
- 1984-06-29 ZA ZA844992A patent/ZA844992B/en unknown
- 1984-07-02 CH CH3168/84A patent/CH657552A5/en not_active IP Right Cessation
- 1984-07-06 BR BR8403392A patent/BR8403392A/en not_active IP Right Cessation
- 1984-07-06 AR AR297138A patent/AR231502A1/en active
- 1984-07-06 BG BG066145A patent/BG48687A3/en unknown
- 1984-07-20 CS CS845596A patent/CS254977B2/en unknown
- 1984-07-26 ES ES1984289252U patent/ES289252Y/en not_active Expired
- 1984-07-27 PL PL1984248967A patent/PL145481B1/en unknown
- 1984-07-27 HU HU842892A patent/HU199720B/en not_active IP Right Cessation
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