EP0355071B1 - Foret comprenant une queue avec des rainures - Google Patents

Foret comprenant une queue avec des rainures Download PDF

Info

Publication number
EP0355071B1
EP0355071B1 EP89402184A EP89402184A EP0355071B1 EP 0355071 B1 EP0355071 B1 EP 0355071B1 EP 89402184 A EP89402184 A EP 89402184A EP 89402184 A EP89402184 A EP 89402184A EP 0355071 B1 EP0355071 B1 EP 0355071B1
Authority
EP
European Patent Office
Prior art keywords
grooves
locking
drill bit
groove
driving
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
Application number
EP89402184A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0355071A1 (fr
Inventor
Jean-Jacques Lafforgue
Claude Schwartz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Societe de Prospection et dInventions Techniques SPIT SAS
Original Assignee
Societe de Prospection et dInventions Techniques SPIT SAS
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9369156&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0355071(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Societe de Prospection et dInventions Techniques SPIT SAS filed Critical Societe de Prospection et dInventions Techniques SPIT SAS
Publication of EP0355071A1 publication Critical patent/EP0355071A1/fr
Application granted granted Critical
Publication of EP0355071B1 publication Critical patent/EP0355071B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D17/00—Details of, or accessories for, portable power-driven percussive tools
    • B25D17/08—Means for retaining and guiding the tool bit, e.g. chucks allowing axial oscillation of the tool bit
    • B25D17/084—Rotating chucks or sockets
    • B25D17/088—Rotating chucks or sockets with radial movable locking elements co-operating with bit shafts specially adapted therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D17/00—Details of, or accessories for, portable power-driven percussive tools
    • B25D17/02—Percussive tool bits
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2217/00—Details of, or accessories for, portable power-driven percussive tools
    • B25D2217/003—Details relating to chucks with radially movable locking elements
    • B25D2217/0034—Details of shank profiles
    • 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
    • Y10T279/00—Chucks or sockets
    • Y10T279/17—Socket type
    • Y10T279/17042—Lost motion
    • 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

  • the tool holder comprises at least one locking part, ball or cylinder, movable in a substantially radial direction, which limits the axial mobility of the rod, or drill bit, by penetrating into the cavities of that -ci, closed on both sides in the axial direction.
  • these balls or cylinders ensure not only the locking of the sliding but also the locking in rotation, by playing the role of coach.
  • the tool holder comprises, in addition to the locking piece (s), at least one key-shaped rotating driver. and often two diametrically opposite.
  • tool holders such as those of the applicant, which comprise a sliding locking ball and a rotary drive key which are diametrically opposite.
  • the applicant's front drills have a diametrically opposite locking groove and driving groove.
  • these drills can be fitted securely into the applicant's tool holders, in one position and only one. They could be fitted therein in a second position, diametrically opposite, but without guaranteed security, the drive groove, open towards the rear, being able to escape the locking ball.
  • These same drills could also be fitted securely into the tool holders of the type of those of FR-A-1 588 841, in two diametrically opposite positions. But they could not not be fitted in tool holders of the type of those of FR-A-2 331 410.
  • Drills of the type of those of FR-A-2 331 410 or EP-A-0 181 093 have two diametrically opposed locking grooves and two diametrically opposed driving grooves and 90 degrees from the locking grooves. These drills can be fitted into the tool holders of the type of those of FR-A-1 588 841 in four positions, 90 degrees from each other, but only two of which, diametrically opposite, with safety. In the tool holders of the type of those of FR-A-2 331 410, they can be fitted in two diametrically opposite positions, with safety. In the applicants' tool holders, they cannot be securely fitted in any position.
  • the drills of the type of those of FR-A-1 588 841 can be fitted securely into the tool holders of the type of those of FR-A-1 588 841 in two diametrically opposite positions. However, they cannot be fitted either in the tool holders of the type of those of FR-A-2 331 410 or in those of the type of the applicant.
  • the present invention aims to provide such a drill.
  • the invention relates to a drill comprising two rotational drive grooves, open towards the rear and diametrically opposite, and three sliding locking grooves, closed on both sides in the axial direction, two of these grooves. locking being diametrically opposite and the third being superimposed one of the two drive grooves.
  • the drill of the invention can be fitted securely into the tool holders of the applicant in a position. They can also be fitted securely in the tool holders of the type of those of FR-A-1 588 841 in four positions at 90 degrees from each other. They can also be fitted securely in the tool holders of the type of those of FR-A-2 331 410 in two diametrically opposite positions.
  • the driving groove associated with the locking groove creates in the locking groove an opening in its rear end surface, which prohibits the passage of the ball only by the stops formed by the two transition zones between the edges of the locking groove and those of the rear part of the drive groove.
  • the invention also provides for angularly shifting the drive groove relative to the associated locking groove so as to reduce one of the projections to the benefit of the other, the increased depth of which will then surely ensure good locking.
  • the drive groove is offset so as to make the lateral faces of the two associated grooves practically coincide in the drill drive zone, that is to say practically canceling the projection corresponding to the zone drive, to extend the friction area over a larger area.
  • the drill comprises two diametrically opposite locking grooves 1, 1 ′, a third locking groove 2 at 90 ° from the first two, a driving groove 3 almost diametrically opposite to the locking groove 2 and a second drive groove 4 with a longitudinal axis parallel to that of groove 2 but offset here radially from it by 5 °.
  • the drive grooves 3,4 are open towards the rear and the locking grooves 1,1 'are closed on both sides in the axial direction.
  • the driving groove 4 creates an opening in the end surfaces of the locking groove 2, while providing axial abutment surfaces.
  • This offset from the axis of the groove 4 has the effect of making the lateral faces 5 and 6 of the two grooves 2 and 4 practically coincide in the drive zone (b) of the drill bit and, on the other hand, of providing the opposite zone, of transition between the lateral faces (a) and (a '), a projecting surface 7, ensuring sufficiently the retention of the drill by abutment of the ball against this surface 7.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling Tools (AREA)
  • Earth Drilling (AREA)
  • Drilling And Boring (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Percussive Tools And Related Accessories (AREA)
EP89402184A 1988-08-05 1989-08-01 Foret comprenant une queue avec des rainures Expired - Lifetime EP0355071B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8810616 1988-08-05
FR8810616A FR2635039B1 (fr) 1988-08-05 1988-08-05 Foret comprenant une queue avec des rainures

Publications (2)

Publication Number Publication Date
EP0355071A1 EP0355071A1 (fr) 1990-02-21
EP0355071B1 true EP0355071B1 (fr) 1994-04-20

Family

ID=9369156

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89402184A Expired - Lifetime EP0355071B1 (fr) 1988-08-05 1989-08-01 Foret comprenant une queue avec des rainures

Country Status (12)

Country Link
US (1) US4943192A (da)
EP (1) EP0355071B1 (da)
JP (1) JP2819159B2 (da)
AU (1) AU621645B2 (da)
CA (1) CA1314736C (da)
DE (1) DE68914748T2 (da)
DK (1) DK174145B1 (da)
FI (1) FI90637C (da)
FR (1) FR2635039B1 (da)
IE (1) IE63396B1 (da)
IT (1) IT1231322B (da)
NO (1) NO893161L (da)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3745046C2 (de) * 1987-05-20 1996-07-25 Bosch Gmbh Robert Werkzeugaufnahme einer Handwerkzeugmaschine mit verdrehsicher einsetzbarem Werkzeug
DE4105414A1 (de) * 1991-02-21 1992-08-27 Hilti Ag Werkzeug und werkzeughalter fuer handwerkzeuggeraete
DE4137120A1 (de) * 1991-11-12 1993-05-13 Hilti Ag Werkzeug zum schlagbohren und werkzeugaufnahme fuer schlagbohrende werkzeuge
DE4141846A1 (de) * 1991-12-18 1993-06-24 Hilti Ag Werkzeug zum schlagbohren und meisseln und werkzeugaufnahme fuer diese werkzeuge
DE4242452A1 (de) * 1992-07-15 1994-01-20 Hilti Ag Werkzeug und Werkzeugaufnahme für Handwerkzeuggeräte
DE4313580A1 (de) * 1993-04-26 1994-10-27 Hilti Ag Werkzeugeinspannschaft
DE9314416U1 (de) * 1993-09-23 1993-12-09 Plica Werkzeugfabrik Ag, Mollis Werkzeugschaft
DE4341970A1 (de) * 1993-12-09 1995-06-14 Hilti Ag Werkzeug und Werkzeugaufnahme für Handwerkzeuggeräte
DE4341971A1 (de) * 1993-12-09 1995-06-14 Hilti Ag Werkzeug und Werkzeugaufnahme für Handwerkzeuggeräte
DE4341969A1 (de) * 1993-12-09 1995-06-14 Hilti Ag Werkzeug und Werkzeugaufnahme für Handwerkzeuggeräte
DE4402802C2 (de) * 1994-01-31 2003-01-30 Hilti Ag Werkzeug und Werkzeugaufnahme für Handwerkzeuggeräte
DE19507567A1 (de) * 1995-03-03 1996-09-05 Drebo Werkzeugfab Gmbh Bohrer
EP1128923B1 (en) * 1998-11-12 2008-05-28 BLACK & DECKER INC. Chuck, bit, assembly thereof and methods of mounting
EP1775046A3 (en) * 1998-11-12 2008-06-04 Black & Decker, Inc. Chuck,bit,assembly thereof and methods of mounting
EP1218135A4 (en) * 1999-07-21 2004-12-15 Black & Decker Inc MECHANICALLY DRIVEN CHUCK
DE102010002167A1 (de) * 2010-02-22 2011-08-25 Hilti Aktiengesellschaft Herstellungsverfahren für ein Einsteckende

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1969989U (de) * 1967-07-24 1967-10-05 Hilti Ag Werkzeughalter fuer bohrhaemmer.
NL175040C (nl) * 1974-08-19 1984-09-17 Durofac Kartro As Booropneeminrichting voor een klopboormachine.
DE2551125C2 (de) * 1975-11-14 1987-04-23 Robert Bosch Gmbh, 7000 Stuttgart Einrichtung an Handwerkzeugmaschinen zur Drehmomentübertragung
DE2650134A1 (de) * 1976-10-30 1978-05-11 Bosch Gmbh Robert Werkzeugeinsteckschaft
DE3205063C2 (de) * 1981-04-03 1986-10-09 Robert Bosch Gmbh, 7000 Stuttgart Werkzeughalter
DK333581A (da) * 1981-07-24 1983-01-25 Duforac Kartro A S Vaerktoejsskaft isaer til slag eller hammerbor
DE3413432A1 (de) * 1983-12-27 1985-07-04 Gebrüder Heller GmbH Werkzeugfabrik, 2807 Achim Bohrer fuer handbohrmaschinen
DE3429419A1 (de) * 1984-08-09 1986-02-20 Hilti Ag, Schaan Bohrwerkzeug fuer handbohrmaschinen
GB8425400D0 (en) * 1984-10-08 1984-11-14 Dom Holdings Plc Tool
DE3515555A1 (de) * 1985-04-30 1986-11-06 Gebrüder Heller GmbH Werkzeugfabrik, 2807 Achim Werkzeugaufnahme fuer bohrmaschinen, bohrvorrichtung sowie bohrer und bohrersatz
DE3539912A1 (de) * 1985-11-11 1987-05-14 Hilti Ag Werkzeughalter fuer bohr- und meisselwerkzeuge
US4747292A (en) * 1986-05-28 1988-05-31 Chorneau Frederick R Stretch forming apparatus
JP4560133B2 (ja) * 2007-06-26 2010-10-13 富士通株式会社 光インタフェース方法及びその装置
JP2010050803A (ja) * 2008-08-22 2010-03-04 Nippon Telegr & Teleph Corp <Ntt> 光伝送システム

Also Published As

Publication number Publication date
DE68914748T2 (de) 1994-11-24
JPH0366510A (ja) 1991-03-22
DK369389A (da) 1990-02-06
FR2635039A1 (fr) 1990-02-09
NO893161D0 (no) 1989-08-04
FI893705A0 (fi) 1989-08-04
FR2635039B1 (fr) 1990-11-02
CA1314736C (en) 1993-03-23
EP0355071A1 (fr) 1990-02-21
JP2819159B2 (ja) 1998-10-30
DK369389D0 (da) 1989-07-27
IT8921359A0 (it) 1989-07-28
US4943192A (en) 1990-07-24
IE892529L (en) 1990-02-05
FI90637B (fi) 1993-11-30
IT1231322B (it) 1991-11-28
AU3927489A (en) 1990-02-08
DE68914748D1 (de) 1994-05-26
FI90637C (fi) 1994-03-10
NO893161L (no) 1990-02-06
AU621645B2 (en) 1992-03-19
DK174145B1 (da) 2002-07-22
FI893705A (fi) 1990-02-06
IE63396B1 (en) 1995-04-19

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