EP2243580A3 - Pneumatic striking mechanism and handheld machine tool with such a mechanism - Google Patents

Pneumatic striking mechanism and handheld machine tool with such a mechanism Download PDF

Info

Publication number
EP2243580A3
EP2243580A3 EP10158108A EP10158108A EP2243580A3 EP 2243580 A3 EP2243580 A3 EP 2243580A3 EP 10158108 A EP10158108 A EP 10158108A EP 10158108 A EP10158108 A EP 10158108A EP 2243580 A3 EP2243580 A3 EP 2243580A3
Authority
EP
European Patent Office
Prior art keywords
piston
machine tool
guide cylinder
handheld machine
flying
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Withdrawn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
EP10158108A
Other languages
German (de)
French (fr)
Other versions
EP2243580A2 (en
Inventor
Ferdinand Kristen
Stefan Hammerstingl
Erwin Manschitz
Markus Hartmann
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 EP2243580A2 publication Critical patent/EP2243580A2/en
Publication of EP2243580A3 publication Critical patent/EP2243580A3/en
Withdrawn legal-status Critical Current

Links

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
    • B25D17/06—Hammer pistons; Anvils ; Guide-sleeves for pistons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2211/00—Details of portable percussive tools with electromotor or other motor drive
    • B25D2211/003—Crossed drill and motor spindles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2211/00—Details of portable percussive tools with electromotor or other motor drive
    • B25D2211/06—Means for driving the impulse member
    • B25D2211/068—Crank-actuated impulse-driving mechanisms
    • 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
    • B25D2217/0019—Guide-sleeves
    • 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
    • B25D2217/0023—Pistons
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)

Abstract

Das erfindungsgemässe pneumatische Schlagwerk beinhaltet einen Führungszylinder, indem ein Flugkolben und ein Erregerkolben längs einer Schlagachse beweglich angeordnet sind. Der Führungszylinder weist einen Kunststoff auf. Ein pneumatischer Raum, abgeschlossen durch den Führungszylinder, den Flugkolben und den Erregerkolben, und ein Antrieb zum periodischen Bewegen des Erregerkolbens, wodurch der Flugkolben zu einer periodischen Bewegung zwischen Schlagfläche und Erregerkolben angeregt ist, sind in dem Schlagwerk vorgesehen.

Figure imgaf001
The pneumatic percussion mechanism according to the invention comprises a guide cylinder in which a flying piston and an excitation piston are movably arranged along a striking axis. The guide cylinder has a plastic. A pneumatic space, completed by the guide cylinder, the flying piston and the exciter piston, and a drive for periodically moving the exciter piston, whereby the flying piston is excited to a periodic movement between the face and exciter piston, are provided in the hammer mechanism.
Figure imgaf001
EP10158108A 2009-04-20 2010-03-29 Pneumatic striking mechanism and handheld machine tool with such a mechanism Withdrawn EP2243580A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102009002474A DE102009002474A1 (en) 2009-04-20 2009-04-20 Pneumatic percussion and hand tool

Publications (2)

Publication Number Publication Date
EP2243580A2 EP2243580A2 (en) 2010-10-27
EP2243580A3 true EP2243580A3 (en) 2011-05-25

Family

ID=42272028

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10158108A Withdrawn EP2243580A3 (en) 2009-04-20 2010-03-29 Pneumatic striking mechanism and handheld machine tool with such a mechanism

Country Status (3)

Country Link
US (1) US9199369B2 (en)
EP (1) EP2243580A3 (en)
DE (1) DE102009002474A1 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10102144B2 (en) 2013-04-16 2018-10-16 Sandisk Technologies Llc Systems, methods and interfaces for data virtualization
US10558561B2 (en) 2013-04-16 2020-02-11 Sandisk Technologies Llc Systems and methods for storage metadata management
US9842128B2 (en) 2013-08-01 2017-12-12 Sandisk Technologies Llc Systems and methods for atomic storage operations
US10019320B2 (en) 2013-10-18 2018-07-10 Sandisk Technologies Llc Systems and methods for distributed atomic storage operations
US10073630B2 (en) 2013-11-08 2018-09-11 Sandisk Technologies Llc Systems and methods for log coordination
EP2910336A1 (en) * 2014-02-21 2015-08-26 HILTI Aktiengesellschaft Power tool
US9946607B2 (en) 2015-03-04 2018-04-17 Sandisk Technologies Llc Systems and methods for storage error management
US10344861B2 (en) 2015-04-24 2019-07-09 Caterpillar Inc. Hammer having composite piston sleeve
EP3117962A1 (en) * 2015-07-17 2017-01-18 HILTI Aktiengesellschaft Manual machine tool
EP3697574A1 (en) 2017-10-20 2020-08-26 Milwaukee Electric Tool Corporation Percussion tool
US11059155B2 (en) 2018-01-26 2021-07-13 Milwaukee Electric Tool Corporation Percussion tool
DE102020209356A1 (en) 2020-07-24 2022-01-27 Robert Bosch Gesellschaft mit beschränkter Haftung Percussion device for a hand-held power tool

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2063141A (en) * 1979-11-14 1981-06-03 Bosch Gmbh Robert A hand machine tool provided with an air-spring percussion mechanism
US4476941A (en) * 1982-06-29 1984-10-16 Robert Bosch Gmbh Motor-driven hand-held percussion tool
US4602689A (en) * 1980-03-19 1986-07-29 Robert Bosch Gmbh Power tool
EP1027964A2 (en) * 1999-02-09 2000-08-16 Black & Decker Inc. Rotary hammer
WO2008094134A2 (en) * 2005-09-23 2008-08-07 Hard Hat Technology, Llc Combination of impact tool and shaped relatively lower modulus material

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1246357A (en) 1969-08-25 1971-09-15 Inst Gornogo Dela Imeni Skochi Improvements relating to impact mechanisms
US4388776A (en) * 1980-06-16 1983-06-21 Tomy Corporation Pneumatically operated toy employing a movable implement
US4738339A (en) * 1985-03-08 1988-04-19 Tayco Developments, Inc. Energy absorber device with composite plastic casing having high strength inner cylinder
US5348425A (en) * 1992-11-10 1994-09-20 Heiliger Robert W Piston cylinder device with a protective coating and method of producing such a coating
US6395359B1 (en) * 1997-08-13 2002-05-28 The United States Of America As Represented By The Secretary Of The Navy Power cylinder non-metallic liner seal assembly
DE19828423C2 (en) * 1998-06-25 2000-05-18 Wacker Werke Kg Driving piston for an air spring hammer mechanism
WO2000029210A1 (en) * 1998-11-18 2000-05-25 Daikin Industries, Ltd. Fluorine-containing polymer structure having high-temperature adhesiveness and sliding material using it
JP2005193354A (en) * 2004-01-09 2005-07-21 Hitachi Koki Co Ltd Impact tool
DE102005021734A1 (en) * 2005-05-11 2006-11-16 Robert Bosch Gmbh Power tool

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2063141A (en) * 1979-11-14 1981-06-03 Bosch Gmbh Robert A hand machine tool provided with an air-spring percussion mechanism
US4602689A (en) * 1980-03-19 1986-07-29 Robert Bosch Gmbh Power tool
US4476941A (en) * 1982-06-29 1984-10-16 Robert Bosch Gmbh Motor-driven hand-held percussion tool
EP1027964A2 (en) * 1999-02-09 2000-08-16 Black & Decker Inc. Rotary hammer
WO2008094134A2 (en) * 2005-09-23 2008-08-07 Hard Hat Technology, Llc Combination of impact tool and shaped relatively lower modulus material

Also Published As

Publication number Publication date
DE102009002474A1 (en) 2010-10-21
US9199369B2 (en) 2015-12-01
EP2243580A2 (en) 2010-10-27
US20100263894A1 (en) 2010-10-21

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