US3170224A - Rotary cutting tool - Google Patents
Rotary cutting tool Download PDFInfo
- Publication number
- US3170224A US3170224A US337856A US33785664A US3170224A US 3170224 A US3170224 A US 3170224A US 337856 A US337856 A US 337856A US 33785664 A US33785664 A US 33785664A US 3170224 A US3170224 A US 3170224A
- Authority
- US
- United States
- Prior art keywords
- shaft
- head
- dimension
- cutting
- cutting head
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Lifetime
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Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/10—Bits for countersinking
- B23B51/102—Back spot-facing or chamfering
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S408/00—Cutting by use of rotating axially moving tool
- Y10S408/713—Tool having detachable cutting edge
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T408/00—Cutting by use of rotating axially moving tool
- Y10T408/55—Cutting by use of rotating axially moving tool with work-engaging structure other than Tool or tool-support
- Y10T408/561—Having tool-opposing, work-engaging surface
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T408/00—Cutting by use of rotating axially moving tool
- Y10T408/86—Tool-support with means to permit positioning of the Tool relative to support
- Y10T408/865—Pivotable Tool
- Y10T408/868—Pivotable Tool with multiple cutting positions
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T408/00—Cutting by use of rotating axially moving tool
- Y10T408/89—Tool or Tool with support
- Y10T408/907—Tool or Tool with support including detailed shank
Definitions
- My invention relates generally to metal working tools and more particularly to back-facing tools.
- the primary object of my invention is the provision of an extremely inexpensive light weight tool bit which from conventional portable rotary power sources, such as chuckequipped hand drills and the like, and which may be used with a minimum consumption of time and effort to either deburr or chamfer metallic workpieces which have been previously drilled.
- a further object of my invention is the provision of a device of the class above described which includes a shank having a bifurcated outer end in which is pivotally mounted a novel triangular combination deb-urring and chamfering head which has a maximum longitudinal dimension considerably greater than that of saidshaft and a minimum transverse or altitude dimension substantially equal to that of said shaft, whereby upon imparting pivotal movements of said head, same may be passed through an opening corresponding in diameter generally to that of said shaft and thereafter swung into alternative operative positions to either deburr and backface or chamfer.
- a further object of my invention is the provision of a device of the class above described whichris extremely inexpensive to produce, which is foolproof in its operation, and which is rugged and durable.
- FIG. 1 is a view in perspective of my novel tool
- FIG. 2 is a view in side'elevation of the structure of FIG. 1, showing a different position of some of the parts
- FIG. 3 is a view corresponding to FIG. 2, but showing a still different position of some of the parts;
- FIG. 4 is a view in transverse section as seen from the line 4-4 of FIG. 3;
- FIG. 5 is a view in end elevation of the structureof FIG. 1;
- FIG. 6 is an enlarged fragmentary view in side elevation as seen generally from right to left of FIG. 1, some parts being broken away and shown in section.
- the numeral 10 indicates the shaft or shank of my novel tool, which, preferably, and as shown, is cylindrical in shape.
- the shank 10 is. adapted to he received within the chuck of a conventional power tool such as a portable hand drill.
- a conventional power tool such as a portable hand drill.
- the shaft 11 At its outer endthe shaft 11) is bifurcated as at 11, the opposed tines; thereof being identifiedby 12.
- 'Snugly received between the tines 12 for free pivotal movements about the pin 13 is a cutting head 14.
- Head 14, as shown, is in the nature of an isosceles triangle, the flat opposite sides. thereof being identified by 15 and 16.
- the converging side edges 17, 18 are each of a less dimension than the longitudinal dimension of the base 19. 1
- the plane of the head 14' is mounted for pivotal movements in a plane bisecting the axis of the shaft 10, and that the pivot pin 13 passes through the 3,179,224 Patented Feb. 23, 1965 projected planes of the opposite sides 10a of the shaft 10 so as to permit passage of the head 14 through a drilled aperture X in a workpiece Y which hasdiametrical dimension only slightly greater than that of shaft 10. Thereafter, the head 14 may be rotated about the axis of the pivot pin 13 to either of its two operative positions, one of which is indicated by dotted lines in FIG. 2, and
- the linear dimension ofv the base 19 of the cutting head 14 is substantially greater than the transverse dimension of the shaft 11).
- opposite end portions 1%, 1% thereof are relieved rearwardiy of their respective cutting edges 21, 22.
- a rotary metal working tool bit comprising:
- said cutting head being mounted in the bifurcated end of said shaft centrally along the altitude thereof for unlimited pivotal movements in a plane bisecting the axis of said shaft,
- the altitude of said cutting head having a dimension corresponding generally to the transverse dimension of said shaft, whereby said head may be substantially retracted into the projected planes "of opposite. sides of said shaft when said head is pivotally moved to an inoperative positionwith the base thereof in substantial alignment with one side of said shaft.
Description
Feb. 23, 1965 s. A. JOHNSON 3,170,224
ROTARY CUTTING TOOL Filed Jan. 15. 1964 A7- TORNEYS may be readily attached to and removed 3,177 53,224 RGTARY CUTTRNG TGGL Etanley A. .Iohnson, North Star Speciaities line,
8% 16th Ave. SE, Minneapolis, Filed Han. 15, 1964, Ser. No. 337,35
2 (Ilairns. {$1. 29 1fi5) My invention relates generally to metal working tools and more particularly to back-facing tools.
The primary object of my invention is the provision of an extremely inexpensive light weight tool bit which from conventional portable rotary power sources, such as chuckequipped hand drills and the like, and which may be used with a minimum consumption of time and effort to either deburr or chamfer metallic workpieces which have been previously drilled.
A further object of my invention is the provision of a device of the class above described which includes a shank having a bifurcated outer end in which is pivotally mounted a novel triangular combination deb-urring and chamfering head which has a maximum longitudinal dimension considerably greater than that of saidshaft and a minimum transverse or altitude dimension substantially equal to that of said shaft, whereby upon imparting pivotal movements of said head, same may be passed through an opening corresponding in diameter generally to that of said shaft and thereafter swung into alternative operative positions to either deburr and backface or chamfer.
A further object of my invention is the provision of a device of the class above described whichris extremely inexpensive to produce, which is foolproof in its operation, and which is rugged and durable.
The above and still further objects of my invention will become apparent from the following detailed specification, appended claims, and attached drawings.
Referring to the drawings wherein like characters indi- I cate like parts throughout the several views:
FIG. 1 is a view in perspective of my novel tool; FIG. 2 is a view in side'elevation of the structure of FIG. 1, showing a different position of some of the parts,
. some parts being broken away and shown in section;
FIG. 3 is a view corresponding to FIG. 2, but showing a still different position of some of the parts;
FIG. 4 is a view in transverse section as seen from the line 4-4 of FIG. 3;
FIG. 5 is a view in end elevation of the structureof FIG. 1; and
FIG. 6 is an enlarged fragmentary view in side elevation as seen generally from right to left of FIG. 1, some parts being broken away and shown in section.
Referring with greater particularly to the drawings, the numeral 10 indicates the shaft or shank of my novel tool, which, preferably, and as shown, is cylindrical in shape.
At its upper end, not shown, the shank 10 is. adapted to he received within the chuck of a conventional power tool such as a portable hand drill. At its outer endthe shaft 11) is bifurcated as at 11, the opposed tines; thereof being identifiedby 12. 'Snugly received between the tines 12 for free pivotal movements about the pin 13 is a cutting head 14. Head 14, as shown, is in the nature of an isosceles triangle, the flat opposite sides. thereof being identified by 15 and 16. Specifically, the converging side edges 17, 18 are each of a less dimension than the longitudinal dimension of the base 19. 1
It will be noted that the plane of the head 14' is mounted for pivotal movements in a plane bisecting the axis of the shaft 10, and that the pivot pin 13 passes through the 3,179,224 Patented Feb. 23, 1965 projected planes of the opposite sides 10a of the shaft 10 so as to permit passage of the head 14 through a drilled aperture X in a workpiece Y which hasdiametrical dimension only slightly greater than that of shaft 10. Thereafter, the head 14 may be rotated about the axis of the pivot pin 13 to either of its two operative positions, one of which is indicated by dotted lines in FIG. 2, and
the other by the full line showing of FIG. 3. 'Which of these two alternative positions is chosen,.would depend upon whether the operator desires to remove by back facing the burr Z, conventionally formed by the drilling of the aperture X, and as shown in FIG. 3, or alternatively, to chamfer the lower end of the aperture X, as indicated by 20 in FIG. 2.
As shown, the linear dimension ofv the base 19 of the cutting head 14 is substantially greater than the transverse dimension of the shaft 11). For the purpose of increasing the cutting ability of said base 19, opposite end portions 1%, 1% thereof are relieved rearwardiy of their respective cutting edges 21, 22.
It will be noted that the converging side edges 17, 1S of the cutting head 1 are likewise relieved rearwardly of their cutting edges 23, 24 defined respectively thereby, as indicated at 23a, 24a, respectively.
be completely satisfactory for the accomplishment of the.
above objects; and while I have disclosed a preferred em bodirnent thereof, same may well be capable of modification without departure from the scope and spirit of the appended claims.
What is claimed is: a V
1. A rotary metal working tool bit comprising:
(a) an elongated shaft having a bifurcated outer: end,
I (b) a cutting head in the form of an isosceles triangle, the base portion of which has a longitudinal dimension substantially greater than the transverse dimension of said shaft and which is formed to define flat parallel side surfaces,
(c) the converging sides of said cutting head defining cooperating cutting. edges, and opposite side portions of the base of said head defining cooperating substantially coplanar cutting edges,
(d) said cutting head being mounted in the bifurcated end of said shaft centrally along the altitude thereof for unlimited pivotal movements in a plane bisecting the axis of said shaft,
(e) the altitude of said cutting head having a dimension corresponding generally to the transverse dimension of said shaft, whereby said head may be substantially retracted into the projected planes "of opposite. sides of said shaft when said head is pivotally moved to an inoperative positionwith the base thereof in substantial alignment with one side of said shaft.
No references cited.
ANDREW JUI-IASZ. Primary Examiner.
Claims (1)
1. A ROTARY METAL WORKING TOOL BIT COMPRISING: (3) AN ELONGATED SHAFT HAVING A BIFURCATED OUTER END, (B) A CUTTING HEAD IN THE FORM OF AN ISOSCELES TRIANGLE, THE BASE PORTION OF WHICH HAS A LONGITUDINAL DIMENSION SUBSTANTIALLY GREATER THAN THE TRANSVERSE DIMENSION OF SAID SHAFT AND WHICH IS FORMED TO DEFINE FLAT PARALLEL SIDE SURFACES, (C) THE CONVERGING SIDES OF SAID CUTTING HEAD DEFINING COOPERATING CUTTING EDGES, AND OPPOSITE SIDE PORTIONS OF THE BASE OF SAID HEAD DEFINING COOPERATING SUBSTANTIALLY COPLANAR CUTTING EDGES, (D) SAID CUTTING HEAD BEING MOUNTED IN THE BIFURCATED END OF SAID SHAFT CENTRALLY ALONG THE ALTITUDE THEREOF FOR UNLIMITED PIVOTAL MOVEMENTS IN A PLANE BISECTING THE AXIS OF SAID SHAFT, (E) THE ALTITUDE OF SAID CUTTING HEAD HAVING A DIMENSION CORRESPONDING GENERALLY TO THE TRANSVERESE DIMENSION OF SAID SHAFT, WHEREBY SAID HEAD MAY BE SUBSTANTIALLY RETRACTED INTO THE PROJECTED PLANES OF OPPOSITE SIDES OF SAID SHAFT WHEN SAID HEAD IS PIVOTALLY MOVED TO AN INOPERATIVE POSITION WITH THE BASE THEREOF IN SUBSTANTIAL ALIGNMENT WITH ONE SIDE OF SAID SHAFT.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US337856A US3170224A (en) | 1964-01-15 | 1964-01-15 | Rotary cutting tool |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US337856A US3170224A (en) | 1964-01-15 | 1964-01-15 | Rotary cutting tool |
Publications (1)
Publication Number | Publication Date |
---|---|
US3170224A true US3170224A (en) | 1965-02-23 |
Family
ID=23322306
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US337856A Expired - Lifetime US3170224A (en) | 1964-01-15 | 1964-01-15 | Rotary cutting tool |
Country Status (1)
Country | Link |
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US (1) | US3170224A (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3380137A (en) * | 1966-05-12 | 1968-04-30 | Valeron Corp | Cylindrical insert cutting tool |
US3540325A (en) * | 1968-02-08 | 1970-11-17 | Gerard P Artaud | Self-centering deburring tool |
US4195957A (en) * | 1977-06-23 | 1980-04-01 | Wilhelm Hegenscheidt Gesellschaft Mit Beschraenkter Haftung | Boring tool with floating double edged knife |
US4303356A (en) * | 1980-01-07 | 1981-12-01 | Williams David B | Deburring tool |
US4488840A (en) * | 1982-07-08 | 1984-12-18 | Pollington Bernard M | Rotary cutting tool |
EP0818264A1 (en) * | 1996-07-11 | 1998-01-14 | SOCIETE NATIONALE D'ETUDE ET DE CONSTRUCTION DE MOTEURS D'AVIATION -Snecma | Tool and method for deburring |
US5765973A (en) * | 1994-02-16 | 1998-06-16 | Noga Engineering Ltd. | Reversible conuntersink |
US20050158133A1 (en) * | 2002-01-19 | 2005-07-21 | Hill Ronald P. | Tile cutting attachment |
US20060213047A1 (en) * | 2005-03-22 | 2006-09-28 | The Boeing Company | Riveted fastener extraction apparatuses and method |
US20060263159A1 (en) * | 2002-08-21 | 2006-11-23 | Nissin Kogyo Co., Ltd. | Deburring method and automotive knuckle |
-
1964
- 1964-01-15 US US337856A patent/US3170224A/en not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
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None * |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3380137A (en) * | 1966-05-12 | 1968-04-30 | Valeron Corp | Cylindrical insert cutting tool |
US3540325A (en) * | 1968-02-08 | 1970-11-17 | Gerard P Artaud | Self-centering deburring tool |
US4195957A (en) * | 1977-06-23 | 1980-04-01 | Wilhelm Hegenscheidt Gesellschaft Mit Beschraenkter Haftung | Boring tool with floating double edged knife |
US4303356A (en) * | 1980-01-07 | 1981-12-01 | Williams David B | Deburring tool |
US4488840A (en) * | 1982-07-08 | 1984-12-18 | Pollington Bernard M | Rotary cutting tool |
US5765973A (en) * | 1994-02-16 | 1998-06-16 | Noga Engineering Ltd. | Reversible conuntersink |
DE19505083B4 (en) * | 1994-02-16 | 2004-04-15 | Noga Engineering Ltd. | Countersink with reversible direction of rotation |
EP0818264A1 (en) * | 1996-07-11 | 1998-01-14 | SOCIETE NATIONALE D'ETUDE ET DE CONSTRUCTION DE MOTEURS D'AVIATION -Snecma | Tool and method for deburring |
US20050158133A1 (en) * | 2002-01-19 | 2005-07-21 | Hill Ronald P. | Tile cutting attachment |
US20060263159A1 (en) * | 2002-08-21 | 2006-11-23 | Nissin Kogyo Co., Ltd. | Deburring method and automotive knuckle |
US7231703B2 (en) * | 2002-08-21 | 2007-06-19 | Nissin Kogyo Co., Ltd. | Deburring method and automotive knuckle |
US20060213047A1 (en) * | 2005-03-22 | 2006-09-28 | The Boeing Company | Riveted fastener extraction apparatuses and method |
US7784163B2 (en) * | 2005-03-22 | 2010-08-31 | The Boeing Company | Riveted fastener extraction apparatuses and method |
US20100319180A1 (en) * | 2005-03-22 | 2010-12-23 | The Boeing Company | Riveted fastener extraction apparatus and method |
US8056204B2 (en) | 2005-03-22 | 2011-11-15 | The Boeing Company | Riveted fastener extraction apparatus and method |
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