EP1886767A3 - Hand tool machine with pneumatic striking mechanism - Google Patents

Hand tool machine with pneumatic striking mechanism Download PDF

Info

Publication number
EP1886767A3
EP1886767A3 EP07113295A EP07113295A EP1886767A3 EP 1886767 A3 EP1886767 A3 EP 1886767A3 EP 07113295 A EP07113295 A EP 07113295A EP 07113295 A EP07113295 A EP 07113295A EP 1886767 A3 EP1886767 A3 EP 1886767A3
Authority
EP
European Patent Office
Prior art keywords
hand tool
striking mechanism
tool machine
tool
pneumatic striking
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.)
Withdrawn
Application number
EP07113295A
Other languages
German (de)
French (fr)
Other versions
EP1886767A2 (en
Inventor
Stefan Hammerstingl
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 EP1886767A2 publication Critical patent/EP1886767A2/en
Publication of EP1886767A3 publication Critical patent/EP1886767A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D16/00—Portable percussive machines with superimposed rotation, the rotational movement of the output shaft of a motor being modified to generate axial impacts on the tool bit
    • 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
    • B25D11/005—Arrangements for adjusting the stroke of the impulse member or for stopping the impact action when the tool is lifted from the working surface
    • 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
    • B25D17/06—Hammer pistons; Anvils ; Guide-sleeves for pistons
    • 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
    • B25D2217/0011—Details of anvils, guide-sleeves or pistons
    • B25D2217/0015—Anvils
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2222/00—Materials of the tool or the workpiece
    • B25D2222/54—Plastics
    • B25D2222/66—Polypropylene
    • 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
    • B25D2250/131—Idling mode of tools

Landscapes

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

Abstract

Eine Handwerkzeugmaschine zum zumindest teilweise schlagenden Antrieb eines Werkzeugs (3) mit einem pneumatischen Schlagwerk (4) mit einem in einem Führungsrohr (5) geführten sowie durch eine Luftfeder (6) antreibbaren Flugkolben (7) zum Beaufschlagen eines axial begrenzt beweglichen Döppers (8) für das Werkzeug (3), wobei im Führungsrohr (5) ein viskoelastisches Dämpfungselement (9) angeordnet ist, wobei das Dämpfungselement (9) in eine axial beidseitig begrenzte, umlaufende Radialnut (13) des Döppers (8) eingreift.

Figure imgaf001
A hand tool for at least partially driving a tool (3) with a pneumatic impact mechanism (4) with a guided in a guide tube (5) and by an air spring (6) driven air piston (7) for acting on an axially limited beatpiece (8) for the tool (3), wherein in the guide tube (5) a viscoelastic damping element (9) is arranged, wherein the damping element (9) engages in an axially on both sides limited, circumferential radial groove (13) of the striker (8).
Figure imgaf001
EP07113295A 2006-08-07 2007-07-27 Hand tool machine with pneumatic striking mechanism Withdrawn EP1886767A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006000395A DE102006000395A1 (en) 2006-08-07 2006-08-07 Hand tool with pneumatic percussion

Publications (2)

Publication Number Publication Date
EP1886767A2 EP1886767A2 (en) 2008-02-13
EP1886767A3 true EP1886767A3 (en) 2008-02-27

Family

ID=38693557

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07113295A Withdrawn EP1886767A3 (en) 2006-08-07 2007-07-27 Hand tool machine with pneumatic striking mechanism

Country Status (3)

Country Link
US (1) US20080029283A1 (en)
EP (1) EP1886767A3 (en)
DE (1) DE102006000395A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8011547B2 (en) * 2007-10-05 2011-09-06 Senco Brands, Inc. Fastener driving tool using a gas spring
US8763874B2 (en) 2007-10-05 2014-07-01 Senco Brands, Inc. Gas spring fastener driving tool with improved lifter and latch mechanisms
DE102008010100A1 (en) * 2008-02-20 2009-08-27 Robert Bosch Gmbh Hand tool
JP5154995B2 (en) * 2008-03-28 2013-02-27 株式会社マキタ Impact tool
US8636081B2 (en) 2011-12-15 2014-01-28 Milwaukee Electric Tool Corporation Rotary hammer
US20240123589A1 (en) * 2019-11-12 2024-04-18 Hilti Aktiengesellschaft Impact mechanism arrangement
SE545906C2 (en) * 2022-12-09 2024-03-12 Atlas Copco Ind Technique Ab Hand-held percussive tool

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2207962A1 (en) * 1972-02-21 1972-08-30 Bosch Gmbh Robert AIR SPRING HAMMER
NL7810416A (en) * 1977-12-21 1979-06-25 Duss Maschf ELECTROPNEUMATIC HAMMER, FITTED WITH A ROCKET FOR THE IMPACT PISTON.
EP0014760A1 (en) * 1979-01-31 1980-09-03 Black & Decker Inc. Idling and air replenishing system for a reciprocating hammer mechanism
DE19933972A1 (en) * 1999-07-20 2001-01-25 Bosch Gmbh Robert Hammer drill or hammer
EP1147861A2 (en) * 2000-04-18 2001-10-24 HILTI Aktiengesellschaft Electric hand tool with idle running switch off
WO2003024671A2 (en) * 2001-09-17 2003-03-27 Milwaukee Electric Tool Corporation Rotary hammer
US20040194987A1 (en) * 2001-03-07 2004-10-07 Andreas Hanke Hammer

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1896992A (en) * 1930-02-06 1933-02-07 Agren Ernst Malcus Arrangement in striking tools
US3179185A (en) * 1962-06-14 1965-04-20 Chicago Pneumatic Tool Co Demolition tool with shock attenuating means
DE2229388C3 (en) * 1972-06-16 1981-01-22 Robert Bosch Gmbh, 7000 Stuttgart Hand-operated hammer drill
DE3010479A1 (en) * 1980-03-19 1981-10-08 Robert Bosch Gmbh, 7000 Stuttgart MACHINE TOOL, IN PARTICULAR HAND MACHINE TOOL WITH AN AIR SPRING PERFORMANCE
US4442906A (en) * 1980-11-18 1984-04-17 Black & Decker Inc. Percussive drills
US4648609A (en) * 1985-01-22 1987-03-10 Construction Robotics, Inc. Driver tool
DE3633675A1 (en) * 1986-10-03 1988-04-14 Hilti Ag DRILLING HAMMER WITH STRIKE
JP2552566B2 (en) * 1990-04-05 1996-11-13 株式会社マキタ Impact tool
US5363835A (en) * 1992-08-31 1994-11-15 Rocktec Limited Nose block assembly
JP3424870B2 (en) * 1995-02-28 2003-07-07 株式会社マキタ Immersion prevention device for impact tools
JP3292972B2 (en) * 1996-03-29 2002-06-17 株式会社マキタ Impact tool
DE19714287A1 (en) * 1997-04-07 1998-10-08 Hilti Ag Drilling and / or chiseling device
DE29711704U1 (en) * 1997-07-04 1997-09-04 Hilti Ag, Schaan Drilling and / or chiseling device
US5896934A (en) * 1997-09-08 1999-04-27 Chicago Pneumatic Tool Company Reciprocating tool having a piston retainer
DE10209293A1 (en) * 2002-03-01 2003-09-18 Hilti Ag Pneumatic striking mechanism
JP4179159B2 (en) * 2003-12-18 2008-11-12 日立工機株式会社 Impact tool
DE102005000179A1 (en) * 2005-12-07 2007-06-14 Hilti Ag Hammer striker

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2207962A1 (en) * 1972-02-21 1972-08-30 Bosch Gmbh Robert AIR SPRING HAMMER
NL7810416A (en) * 1977-12-21 1979-06-25 Duss Maschf ELECTROPNEUMATIC HAMMER, FITTED WITH A ROCKET FOR THE IMPACT PISTON.
EP0014760A1 (en) * 1979-01-31 1980-09-03 Black & Decker Inc. Idling and air replenishing system for a reciprocating hammer mechanism
DE19933972A1 (en) * 1999-07-20 2001-01-25 Bosch Gmbh Robert Hammer drill or hammer
EP1147861A2 (en) * 2000-04-18 2001-10-24 HILTI Aktiengesellschaft Electric hand tool with idle running switch off
US20040194987A1 (en) * 2001-03-07 2004-10-07 Andreas Hanke Hammer
WO2003024671A2 (en) * 2001-09-17 2003-03-27 Milwaukee Electric Tool Corporation Rotary hammer

Also Published As

Publication number Publication date
DE102006000395A1 (en) 2008-02-14
US20080029283A1 (en) 2008-02-07
EP1886767A2 (en) 2008-02-13

Similar Documents

Publication Publication Date Title
EP1886767A3 (en) Hand tool machine with pneumatic striking mechanism
EP1967329A3 (en) Hand tool machine with pneumatic striking mechanism
EP1862265A3 (en) Hand tool with a slip clutch
EP2254732A1 (en) Handheld machine tool
DE102007000059A1 (en) Hand tool with vibration absorber
EP1226903A3 (en) Electric hand tool with idle running switch off
DE19933972A1 (en) Hammer drill or hammer
EP2243580A3 (en) Pneumatic striking mechanism and handheld machine tool with such a mechanism
EP2517835A3 (en) Power tool
US20160271779A1 (en) Handheld Machine Tool
WO2008055743A1 (en) Mass oscillating unit for hand-held machine tools with a striking device
DE102015011738A1 (en) impact tool
EP1910039B1 (en) Percussion mechanism for an at least percussively-operated hand-held tool
EP2017039A3 (en) Powered hand-tool with percussion mechanism
EP2319661A1 (en) Hand-held power tool
EP1340596A1 (en) Pneumatic percussion mechanism
US9498874B2 (en) Hammer drill
AU2005200725A1 (en) Driver blade for fastening tool
DE102010001683A1 (en) Hand-held power tool device i.e. drilling hammer device, for use in e.g. drilling machine, has hammer mechanism with operation unit, which is connected with ventilation hole closure unit and holds closure unit in open position
DE50211969D1 (en) Spindle head for a machine tool
DE20216310U1 (en) Press-in
DE102011088485A1 (en) Percussion device for hand tool machine, particularly drilling or chipping hammer, comprises piston with intermediate base movably mounted relative to piston base body, and valve element provided to vent of air chamber of air spring unit
EP2283978A2 (en) Hand tool machine apparatus
DE10142569A1 (en) Manual tool machine has beater w ith piston connected to drive unit and transmission element, with rotarily driven curved element and piston rod
EP2047951B1 (en) Manual machine tool with a crank drive

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR MK YU

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR MK YU

17P Request for examination filed

Effective date: 20080827

AKX Designation fees paid

Designated state(s): CH DE FR GB IT LI

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

17Q First examination report despatched

Effective date: 20081106

18W Application withdrawn

Effective date: 20081113