EP0876881A3 - Drill- and/or percussion apparatus - Google Patents

Drill- and/or percussion apparatus Download PDF

Info

Publication number
EP0876881A3
EP0876881A3 EP98810143A EP98810143A EP0876881A3 EP 0876881 A3 EP0876881 A3 EP 0876881A3 EP 98810143 A EP98810143 A EP 98810143A EP 98810143 A EP98810143 A EP 98810143A EP 0876881 A3 EP0876881 A3 EP 0876881A3
Authority
EP
European Patent Office
Prior art keywords
guide tube
stop
machining
cooperates
air passage
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.)
Granted
Application number
EP98810143A
Other languages
German (de)
French (fr)
Other versions
EP0876881B1 (en
EP0876881A2 (en
Inventor
Helmut Nussrainer
Jens Frenzel
Hans-Werner Bongers-Ambrosius
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.)
Hilti AG
Original Assignee
Hilti AG
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 Hilti AG filed Critical Hilti AG
Publication of EP0876881A2 publication Critical patent/EP0876881A2/en
Publication of EP0876881A3 publication Critical patent/EP0876881A3/en
Application granted granted Critical
Publication of EP0876881B1 publication Critical patent/EP0876881B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D11/00—Portable percussive tools with electromotor or other motor drive
    • B25D11/06—Means for driving the impulse member
    • B25D11/12—Means for driving the impulse member comprising a crank mechanism
    • B25D11/125—Means for driving the impulse member comprising a crank mechanism with a fluid cushion between the crank drive and the striking body
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2250/00—General details of portable percussive tools; Components used in portable percussive tools
    • B25D2250/035—Bleeding holes, e.g. in piston guide-sleeves

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Earth Drilling (AREA)

Abstract

Das Bohr- und/oder Meisselgerät weist ein Führungsrohr (9) mit wenigstens einem radial verlaufenden Luftdurchlass (10) sowie einem der Steuerung des Luftdurchlasses (10) dienenden Steuerkörper auf, der mit einem Anschlag (30) mit einer ersten Anschlagschulter (18) des Döppers (17) zusammenwirkt. Der Steuerkörper ist gegenüber dem Führungsrohr (9) entgegen der Bearbeitungsrichtung gegen die Kraft einer sich an der Schalthülse (13, 33) abstützenden Feder (12) versetzbar. Der Döpper (17) weist eine entgegen der Bearbeitungsrichtung weisende zweite Anschlagschulter (19) auf, die mit einer axial fest mit dem Führungsrohr (9) in Verbindung stehenden, in Bearbeitungsrichtung weisenden Anschlagfläche (20) zusammenwirkt.

Figure 00000001
The drilling and / or chiseling device has a guide tube (9) with at least one radially extending air passage (10) and a control body which serves to control the air passage (10) and which has a stop (30) with a first stop shoulder (18) of the Döppers (17) cooperates. The control body can be displaced relative to the guide tube (9) against the direction of machining against the force of a spring (12) supported on the switching sleeve (13, 33). The striker (17) has a second stop shoulder (19) which points counter to the machining direction and which cooperates with a stop surface (20) which is axially fixed to the guide tube (9) and points in the machining direction.
Figure 00000001
EP98810143A 1997-04-07 1998-02-23 Drill- and/or percussion apparatus Expired - Lifetime EP0876881B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19714287A DE19714287A1 (en) 1997-04-07 1997-04-07 Drilling and / or chiseling device
DE19714287 1997-04-07

Publications (3)

Publication Number Publication Date
EP0876881A2 EP0876881A2 (en) 1998-11-11
EP0876881A3 true EP0876881A3 (en) 2002-11-27
EP0876881B1 EP0876881B1 (en) 2006-08-23

Family

ID=7825676

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98810143A Expired - Lifetime EP0876881B1 (en) 1997-04-07 1998-02-23 Drill- and/or percussion apparatus

Country Status (5)

Country Link
US (1) US5992541A (en)
EP (1) EP0876881B1 (en)
JP (1) JPH10309680A (en)
CN (1) CN1066380C (en)
DE (2) DE19714287A1 (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19929183B4 (en) * 1999-06-25 2004-07-29 Wacker Construction Equipment Ag Air spring hammer mechanism with hollow impact piston with idle opening
DE19955412A1 (en) * 1999-11-18 2001-05-23 Hilti Ag Drilling and chiseling device
DE10019071A1 (en) * 2000-04-18 2001-10-25 Hilti Ag Electric hand tool device with blank stop
DE10103996C1 (en) * 2001-01-30 2002-10-02 Wacker Werke Kg Air spring hammer mechanism for a hammer and / or hammer drill with a short piston
EP1607187B1 (en) * 2004-06-18 2010-04-28 HILTI Aktiengesellschaft Device for improving the deactivation response of an electropneumatic percussive tool
DE102006000395A1 (en) * 2006-08-07 2008-02-14 Hilti Ag Hand tool with pneumatic percussion
DE102006060320A1 (en) * 2006-12-20 2008-06-26 Robert Bosch Gmbh Schlagwerk for a hand tool
DE102007000081A1 (en) * 2007-02-08 2008-08-21 Hilti Ag Hand tool with pneumatic percussion
US8534527B2 (en) 2008-04-03 2013-09-17 Black & Decker Inc. Cordless framing nailer
US9216502B2 (en) 2008-04-03 2015-12-22 Black & Decker Inc. Multi-stranded return spring for fastening tool
US9399281B2 (en) 2012-09-20 2016-07-26 Black & Decker Inc. Stall release lever for fastening tool
US9346158B2 (en) 2012-09-20 2016-05-24 Black & Decker Inc. Magnetic profile lifter
CN102966673A (en) * 2012-12-04 2013-03-13 普光新高（北京）技术开发有限公司 Electric-isolation rotating shaft device
EP2821183B1 (en) 2013-07-05 2017-06-21 Black & Decker Inc. Hammer Drill
EP2857149A1 (en) * 2013-10-03 2015-04-08 HILTI Aktiengesellschaft Manual tool machine
US11833652B2 (en) * 2022-01-25 2023-12-05 Hilti Aktiengesellschaft Power tool

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3662843A (en) * 1970-01-29 1972-05-16 Gen Dynamics Corp Impact tools
DE2641070A1 (en) * 1976-09-11 1978-03-16 Bosch Gmbh Robert MOTOR-DRIVEN HAMMER WITH AIR SUSPENSION
DE3743333A1 (en) * 1987-12-21 1989-07-06 Bosch Gmbh Robert Motor-driven chiselling or drilling hammer

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE11750T1 (en) * 1980-11-18 1985-02-15 Black & Decker Inc. IMPACT DRILL.
DE3304916A1 (en) * 1983-02-12 1984-08-16 Robert Bosch Gmbh, 7000 Stuttgart DRILLING HAMMER
DE3429140A1 (en) * 1984-08-08 1986-02-20 Black & Decker Inc., Newark, Del. DRILLING HAMMER WITH A PNEUMATIC STRIKE
DE3826213A1 (en) * 1988-08-02 1990-02-15 Bosch Gmbh Robert DRILLING HAMMER
DE3932134A1 (en) * 1989-09-27 1991-04-04 Bosch Gmbh Robert Motor driven hammer - has indirect air cushion striker action which can be adjusted from outside
DE4239294A1 (en) * 1992-11-23 1994-05-26 Black & Decker Inc Hammer drill with pneumatic hammer mechanism
JP3292969B2 (en) * 1995-08-18 2002-06-17 株式会社マキタ Hammer drill

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3662843A (en) * 1970-01-29 1972-05-16 Gen Dynamics Corp Impact tools
DE2641070A1 (en) * 1976-09-11 1978-03-16 Bosch Gmbh Robert MOTOR-DRIVEN HAMMER WITH AIR SUSPENSION
DE3743333A1 (en) * 1987-12-21 1989-07-06 Bosch Gmbh Robert Motor-driven chiselling or drilling hammer

Also Published As

Publication number Publication date
DE59813693D1 (en) 2006-10-05
CN1197717A (en) 1998-11-04
CN1066380C (en) 2001-05-30
DE19714287A1 (en) 1998-10-08
US5992541A (en) 1999-11-30
JPH10309680A (en) 1998-11-24
EP0876881B1 (en) 2006-08-23
EP0876881A2 (en) 1998-11-11

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