EP0575270B1 - Dispositif de maintien de l'outil d'un brise roche hydraulique - Google Patents

Dispositif de maintien de l'outil d'un brise roche hydraulique Download PDF

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Publication number
EP0575270B1
EP0575270B1 EP93420248A EP93420248A EP0575270B1 EP 0575270 B1 EP0575270 B1 EP 0575270B1 EP 93420248 A EP93420248 A EP 93420248A EP 93420248 A EP93420248 A EP 93420248A EP 0575270 B1 EP0575270 B1 EP 0575270B1
Authority
EP
European Patent Office
Prior art keywords
tool
guide
zone
guide means
opposed
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
EP93420248A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0575270A1 (fr
Inventor
Bernard Piras
Jean Sylvain Comarmond
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.)
Montabert SAS
Original Assignee
Montabert 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
Application filed by Montabert SAS filed Critical Montabert SAS
Publication of EP0575270A1 publication Critical patent/EP0575270A1/fr
Application granted granted Critical
Publication of EP0575270B1 publication Critical patent/EP0575270B1/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
    • 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
    • Y10T279/17085—Key retainer
    • 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
    • Y10T279/17923—Transverse pin

Definitions

  • the known solutions for ensuring these functions all have common characteristics.
  • the tool is guided on cylindrical surfaces, either of the same diameters or of different diameters.
  • the rotation stop and the axial retention of the tool are effected by one or more removable keys, cylindrical or flat, as described in document FR-A-2248914.
  • the present invention provides a holding device which overcomes these drawbacks.
  • the device according to the invention of the type in which the tool is arranged coaxially with a striking piston, is mounted to slide, with the interposition of upper and lower guide means, in a front guide, and is limited in its stroke, respectively, upwards, by an abutment face of the guide, and, downwards, by at least one transverse key, disposed between the guide means and also forming an axial retaining means for this tool in the guide , is characterized in that, on the one hand, the upper guide means, situated on the side of the striking face of the piston, comprises a guide zone, the guide curve of which includes inflection points forming angles of separation of facets, this zone cooperating with a zone of complementary section formed, at least locally, on the tool, to wedge the latter in rotation and, on the other hand, the lower guide means is constituted by a cooperating cylindrical sleeve nt with a tool area, also cylindrical.
  • the tool 5 has, in the upper part, a polygonal section, and below the notches 8, a cylindrical section.
  • the lower guide means 4 are constituted by a bush having a cylindrical bore.
  • the setting in rotation of the tool 5 relative to the front guide 2 is ensured by the upper guide means 3 which comprises a guide zone, the guiding curve of which includes inflection points forming angles 10 of separation between facets 12, that is, has non-circular, polygonal, or pseudopolygonal shapes.
  • the tool 5 has a square cross section and cooperates with sockets 3a and 4a, constituting the guide means, upper and lower, also having an axial bore of square section.
  • the tool 5b has two flats 14 constituting the facets 12 and cooperate with a socket 3c of similar internal section.
  • the tool 5c is provided, in its flats 14, with two concave facets 15. This tool cooperates with a bore of the same section as it formed in a 3d socket carried by the front guide 2.
  • FIG. 1 shows that the transverse clearances J1-J2 provided between the tool 5 and its guide means 3 and 4, whatever their embodiments, are less than the clearance J formed between the keys 7 and the bottom of the notches 8 , so that, in no case, the tool can come into contact with the keys in its transverse movements.
  • the tool When the tool is engaged deep in the ground and a resistant torque is applied on the whole of the front part of the device, the tool is set in rotation by its large active facets coming into contact with the facets opposite guide means 3.
  • the clearance J is also determined so that the keys 7 cannot not come into contact with the tool in its working conditions.
  • FIGS. 5 to 10 differ from the previous ones by the fact that the guide means 3 is not constituted by a socket but by at least two pairs of opposite plates 20, reported in the front guide 2. These plates can be distributed along the four sides of a square or a rectangle and can have planar active faces as shown in 21 in FIGS. 5 and 6, concave active faces as shown in 22 in FIGS. 7 and 8, or convex as shown in 23 in Figures 9 and 10. Their dorsal face can be flat or convex depending on the shape of the face against which they are supported.
  • the plates delimit a guide zone, the guiding curve of which includes points of inflection delimiting edges 10 and plane or curvilinear facets.
  • the cross section of the tool 5 is complementary to that of the guide zone, as already described in the previous embodiments.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Earth Drilling (AREA)
  • Paper (AREA)
  • Pens And Brushes (AREA)
  • Gripping On Spindles (AREA)
EP93420248A 1992-06-16 1993-06-15 Dispositif de maintien de l'outil d'un brise roche hydraulique Expired - Lifetime EP0575270B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9207542A FR2692187B1 (fr) 1992-06-16 1992-06-16 Dispositif de maintien de l'outil d'un brise roche hydraulique.
FR9207542 1992-06-16

Publications (2)

Publication Number Publication Date
EP0575270A1 EP0575270A1 (fr) 1993-12-22
EP0575270B1 true EP0575270B1 (fr) 1996-05-08

Family

ID=9430981

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93420248A Expired - Lifetime EP0575270B1 (fr) 1992-06-16 1993-06-15 Dispositif de maintien de l'outil d'un brise roche hydraulique

Country Status (12)

Country Link
US (1) US5388842A (ja)
EP (1) EP0575270B1 (ja)
JP (1) JPH0639744A (ja)
AT (1) ATE137698T1 (ja)
AU (1) AU666014B2 (ja)
CA (1) CA2098452C (ja)
DE (1) DE69302524T2 (ja)
ES (1) ES2088250T3 (ja)
FI (1) FI104155B1 (ja)
FR (1) FR2692187B1 (ja)
GR (1) GR3020358T3 (ja)
ZA (1) ZA934287B (ja)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE503683C2 (sv) * 1994-11-17 1996-07-29 Berema Atlas Copco Ab Hydraulisk brythammare
GB2314287B (en) * 1996-06-19 2001-01-10 John Terrance Crilly Hand held power tools
DE19738660A1 (de) * 1997-09-04 1999-03-18 Krupp Berco Bautechnik Gmbh Werkzeugführung an einer druckmittelbetriebenen Schlagvorrichtung
AU3315100A (en) * 1999-03-26 2000-10-16 Reginald Frederick Taylor Hammer drill assembly
JP2001302649A (ja) * 2000-04-28 2001-10-31 Sumitomo Chem Co Ltd プロピレンオキサイドの精製方法
FR2808720B1 (fr) * 2000-05-12 2002-07-26 Montabert Ets Appareil a percussion du type brise-roche
US6510904B1 (en) 2000-05-26 2003-01-28 Nippon Pneumatic Mfg. Co., Ltd. Protected tool bushing for an impact hammer
DE10044387A1 (de) * 2000-09-08 2002-04-04 Bosch Gmbh Robert Werkzeughalterung für eine Handwerkzeugmaschine
DE10105406A1 (de) * 2001-02-07 2002-08-08 Bosch Gmbh Robert Werkzeughalter für eine Handwerkzeugmaschine
DE10340164A1 (de) * 2003-09-01 2005-03-24 Robert Bosch Gmbh Werkzeughalter
FR2863518B1 (fr) * 2003-12-15 2006-01-13 Montabert Roger Dispositif d'assemblage du carter et du corps d'un brise roche hydraulique
FR2881764B1 (fr) * 2005-02-10 2007-03-16 Montabert Soc Par Actions Simp Appareil de damage destine a etre associe a un brise-roche
US7503628B2 (en) * 2006-09-01 2009-03-17 Hall David R Formation breaking assembly
JP2008126378A (ja) * 2006-11-22 2008-06-05 Makita Corp 打撃工具
FI119228B (fi) * 2006-12-05 2008-09-15 Sandvik Mining & Constr Oy Rikotuslaitteen työkalun laakerointi
DK2372203T3 (da) * 2010-03-29 2012-12-17 Siemens Ag Kobling i en aktuator med en ventil under anvendelse af et holdeelement, der griber ind i en udsparing
SE535904C2 (sv) * 2010-11-03 2013-02-12 Brokk Ab Brytanordning vid en fjärrstyrd med manöverbar arm utrustad arbetsmaskin
SE1051151A1 (sv) * 2010-11-03 2012-05-04 Brokk Ab Brythammare vid en med manöverbar arm utrustad arbetsmaskin
FR3058664B1 (fr) 2016-11-17 2019-07-05 Montabert Appareil a percussions

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE16210E (en) * 1925-11-10 Dbill head
US1798257A (en) * 1926-09-23 1931-03-31 Ingersoll Rand Co Front head for rock drills
US1969798A (en) * 1931-07-21 1934-08-14 Independent Pneumatic Tool Co Retainer for tools and the like
US2128935A (en) * 1934-08-20 1938-09-06 Sullivan Machinery Co Rock drill
US2150189A (en) * 1938-01-17 1939-03-14 Ronneberg Erik Drill chuck for mine drilling machines
US2716393A (en) * 1949-03-17 1955-08-30 Chicago Pneumatic Tool Co Chipping hammer tool retainer
DE1957510C2 (de) * 1969-11-15 1982-04-22 Robert Bosch Gmbh, 7000 Stuttgart Handgeführtes Schlagbohrgerät
DE2125818A1 (ja) * 1971-05-25 1972-09-14
FR2211869A5 (ja) * 1972-12-26 1974-07-19 Montabert Ets
CH583845A5 (ja) * 1973-06-28 1977-01-14 Langensiepen Max Upat Kg
DE2354168C2 (de) * 1973-10-30 1984-10-04 Robert Bosch Gmbh, 7000 Stuttgart Werkzeughalter für einen Bohrhammer
DE2809569A1 (de) * 1978-03-06 1979-09-20 Chris Eggers Jensen Werkzeuganordnung
FI70625C (fi) * 1984-07-03 1986-09-24 Tampella Oy Ab Kopplingsanordning foer en borrnacke foer slagborrmaskin
DE3536132A1 (de) * 1985-10-10 1987-04-16 Bosch Gmbh Robert Werkzeughalter
US4906049A (en) * 1988-11-28 1990-03-06 N. P. K. Construction Equipment, Inc. Ripper using a hydraulic hammer and a method for making the improvement
DE9011245U1 (de) * 1990-07-31 1990-10-04 Beuermann, Herbert, Dipl.-Ing., 5207 Winterscheid Druckmittelbetätigter Schlaghammer
JP4102782B2 (ja) * 2004-06-30 2008-06-18 株式会社大滝油圧 橋桁の送り出し架設方法及びそれに使用するガイド装置

Also Published As

Publication number Publication date
AU666014B2 (en) 1996-01-25
JPH0639744A (ja) 1994-02-15
FI932745A0 (fi) 1993-06-15
DE69302524D1 (de) 1996-06-13
AU4127393A (en) 1993-12-23
ATE137698T1 (de) 1996-05-15
ZA934287B (en) 1994-01-17
CA2098452A1 (fr) 1993-12-17
EP0575270A1 (fr) 1993-12-22
CA2098452C (fr) 1997-11-04
ES2088250T3 (es) 1996-08-01
DE69302524T2 (de) 1996-09-12
FI104155B (fi) 1999-11-30
FR2692187A1 (fr) 1993-12-17
FR2692187B1 (fr) 1997-06-20
FI104155B1 (fi) 1999-11-30
FI932745A (fi) 1993-12-17
US5388842A (en) 1995-02-14
GR3020358T3 (en) 1996-09-30

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