EP0771618A2 - Outil pour forer et/ou ciseler - Google Patents

Outil pour forer et/ou ciseler Download PDF

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Publication number
EP0771618A2
EP0771618A2 EP96810496A EP96810496A EP0771618A2 EP 0771618 A2 EP0771618 A2 EP 0771618A2 EP 96810496 A EP96810496 A EP 96810496A EP 96810496 A EP96810496 A EP 96810496A EP 0771618 A2 EP0771618 A2 EP 0771618A2
Authority
EP
European Patent Office
Prior art keywords
drilling
countershaft
wobble
pinion
bearing
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
EP96810496A
Other languages
German (de)
English (en)
Other versions
EP0771618B1 (fr
EP0771618A3 (fr
Inventor
Josef Fünfer
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 EP0771618A2 publication Critical patent/EP0771618A2/fr
Publication of EP0771618A3 publication Critical patent/EP0771618A3/fr
Application granted granted Critical
Publication of EP0771618B1 publication Critical patent/EP0771618B1/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
    • B25D11/00—Portable percussive tools with electromotor or other motor drive
    • B25D11/06—Means for driving the impulse member
    • B25D11/062—Means for driving the impulse member comprising a wobbling mechanism, swash plate

Definitions

  • the invention relates to a drilling and / or chiseling device with a striking mechanism which is driven by a wobble pin of a wobble mechanism.
  • a drilling and chiseling device is known, the striking mechanism and the tool spindle of which are driven by an electric drive motor.
  • a wobble mechanism is arranged between the drive motor and the striking mechanism. which is composed of a gear shaft with two bearings, a hub body arranged on the gear shaft in a rotationally fixed manner, a swash ring arranged on the hub body with respect to this freely rotatable with a wobble pin and a drive pinion interacting with the drive motor and non-rotatably connected to the gear shaft.
  • the non-rotatable connection of the hub body and the drive pinion with respect to the gear shaft is provided by an internal spline toothing arranged on the hub body and the drive pinion, which meshes with an external spline toothing of the gear shaft.
  • the external spline toothing of the gear shaft which acts as an output pinion, serves for the rotary drive of the tool spindle and engages in a gearwheel that is non-rotatably connected to the tool spindle.
  • the spline gears are manufactured on machine tools whose high hourly rates have a negative impact on the manufacturing costs of the gear shaft, the bearing body and the drive pinion. Because of these high manufacturing costs, this known drilling and / or chiseling device cannot be manufactured economically.
  • the invention has for its object to provide a drilling and / or chisel device, the hammer mechanism and tool spindle drive is simple and easy to assemble and economical to manufacture.
  • a one-piece countershaft is provided for actuating the wobble pin, which has a running groove for one Has a wobble ring having a wobble ring, at least one drive pinion and a bearing point on both sides of the raceway.
  • the countershaft according to the invention in which the running groove and the drive pinion are arranged in one piece thereon, is simple in its construction, economical to manufacture and can be installed quickly and safely in the drilling and / or chiseling device.
  • the two bearing points are spaced apart and interact with corresponding bearing areas arranged in the housing of the drilling and / or chiseling device.
  • the countershaft has the running groove on an outer contour which forms an essentially spherical bearing body.
  • the running groove is inclined to the longitudinal axis of the countershaft and is used for receiving balls, for example, which protrude into a further running groove on the inside of a swash ring.
  • the wobble pin which projects radially from the wobble ring, is located on the wobble ring.
  • the first bearing point is expediently arranged at a first, free end of the countershaft.
  • This freely accessible bearing point can be used in a plain bearing that is pressed into a corresponding bearing area of the housing.
  • the diameter of the bearing corresponds to the inside diameter of the plain bearing.
  • This first bearing point can be formed by the free end of the countershaft opposite the drilling direction.
  • the drive pinion is advantageously arranged between the first bearing point and the raceway.
  • the drive pinion is thus located in the area of the first, free end of the countershaft.
  • the drive movement transmitted from the countershaft to the striking mechanism via the wobble pin generates loads which act perpendicularly to the longitudinal extension of the countershaft.
  • Good support or support of the countershaft is achieved by preferably arranging the second bearing point between the second, free end of the countershaft and the raceway.
  • an output pinion is advantageously arranged on the second, free end of the countershaft.
  • a tool spindle With a countershaft, the drive pinion of which preferably has a larger effective diameter than the driven pinion, a tool spindle can be driven such that the speed of the tool spindle is lower than the speed of the drive motor.
  • the drilling and chiseling device shown in FIGS. 1 and 2 has a housing 1 with a handle 6 in an end region of the housing 1 opposite the drilling direction, an actuating switch 7 arranged in the handle 6, an electrical cable 8 protruding from the handle 6 and one with a Tool spindle 23 connected tool holder 9 in an end region of the housing 1 facing the drilling direction.
  • a drill or chisel tool, not shown, can be used in the tool holder 9.
  • the housing 1 is composed of a gear housing 2 which adjoins the tool holder 9 counter to the drilling direction and a motor housing 3 which adjoins the gear housing 2.
  • An electric drive motor 4 is arranged in the motor housing 3 and can be switched on with the actuation switch 7.
  • the wobble mechanism 25 shown in particular in FIG. 2 is composed of a countershaft 11 with two bearing points 19, 20, a drive pinion 10, a raceway 15 arranged on the countershaft 11, a wobble ring 13, a raceway 16 arranged on the wobble ring 13, and a plurality of balls 14 and a wobble pin 12 arranged on the wobble ring 13 together.
  • the swash ring 13 is rotatably supported in the circumferential direction via the balls 14 with respect to the countershaft 11.
  • the balls 14 protrude partly into the circumferential groove 15, which runs inclined to the longitudinal axis of the countershaft 11, is arranged on the outer contour of the countershaft 11, and partly into the groove 16 arranged on the inner contour of the swash ring 13.
  • the drive pinion 10 acts with a Teeth of the drive shaft 5 of the drive motor 4 together.
  • the first bearing point 19 is located at a free end opposite the drilling direction and is supported on a first bearing region 17 of the housing 1 via a slide bearing 26.
  • An output pinion 21 is arranged on a free end of the countershaft 11 facing the drilling direction, which pinion engages in a gearwheel 22 which is connected in a rotationally fixed manner to a tool spindle 23.
  • the second bearing 20 is arranged, which is supported via a ball bearing 27 on a second bearing area 18 of the housing 1.
  • the striking mechanism 28 is composed of a cylinder 29 and an impact piston 30 which can be axially displaced in the cylinder 29.
  • the cylinder 29 is closed in an end region opposite the drilling direction.
  • a movement joint 31 with a pivot pin 32 is arranged, which has a bore running perpendicular to the longitudinal extension of the pivot pin 32.
  • the wobble pin 12 of the wobble ring 13 engages in this bore in a longitudinally displaceable manner.
  • the cylinder 29 is coupled to the wobble pin 12 in a rotationally secure manner via the movement joint 31 and the pivot pin 32.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling And Boring (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Earth Drilling (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
EP96810496A 1995-10-30 1996-07-26 Outil pour forer et/ou ciseler Expired - Lifetime EP0771618B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19540396 1995-10-30
DE19540396A DE19540396A1 (de) 1995-10-30 1995-10-30 Bohr- und/oder Meisselgerät

Publications (3)

Publication Number Publication Date
EP0771618A2 true EP0771618A2 (fr) 1997-05-07
EP0771618A3 EP0771618A3 (fr) 1998-06-10
EP0771618B1 EP0771618B1 (fr) 2002-01-02

Family

ID=7776170

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96810496A Expired - Lifetime EP0771618B1 (fr) 1995-10-30 1996-07-26 Outil pour forer et/ou ciseler

Country Status (5)

Country Link
US (1) US5787996A (fr)
EP (1) EP0771618B1 (fr)
JP (1) JPH09168979A (fr)
CN (1) CN1068538C (fr)
DE (2) DE19540396A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101694147B (zh) * 2009-10-17 2011-11-16 中北大学 高水基液压凿岩机

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19955412A1 (de) * 1999-11-18 2001-05-23 Hilti Ag Bohr- und Meisselgerät
GB0008465D0 (en) 2000-04-07 2000-05-24 Black & Decker Inc Rotary hammer mode change mechanism
GB0125749D0 (en) * 2001-10-26 2001-12-19 Black & Decker Inc Power tool
DE10111748A1 (de) * 2001-03-12 2002-09-19 Hilti Ag Schaltwerk für ein kombiniertes Handwerkzeuggerät
DE10140319A1 (de) * 2001-08-16 2003-03-13 Bosch Gmbh Robert Handwerkzeugmaschine, insbesondere Bohr- und/oder Meißelhammer
EP1438160B1 (fr) * 2001-10-26 2011-01-19 Black & Decker Inc. Marteau
JP3680941B2 (ja) * 2002-01-18 2005-08-10 マックス株式会社 コンクリートドリル
JP3976187B2 (ja) * 2002-11-20 2007-09-12 株式会社マキタ ハンマードリル
DE10312981A1 (de) * 2003-03-24 2004-10-07 Robert Bosch Gmbh Elektrohandwerkzeugmaschine
DE102004020177A1 (de) * 2004-04-24 2005-11-17 Robert Bosch Gmbh Handwerkzeugmaschine mit einem drehenden und/oder schlagenden Antrieb
GB2433716A (en) * 2005-12-29 2007-07-04 Bosch Gmbh Robert Hammer drill and/or hammer chisel with bevel gear
DE102007001494B3 (de) * 2007-01-10 2008-07-10 Aeg Electric Tools Gmbh Handgeführter Bohrhammer
US7798245B2 (en) 2007-11-21 2010-09-21 Black & Decker Inc. Multi-mode drill with an electronic switching arrangement
US7717191B2 (en) 2007-11-21 2010-05-18 Black & Decker Inc. Multi-mode hammer drill with shift lock
US7717192B2 (en) 2007-11-21 2010-05-18 Black & Decker Inc. Multi-mode drill with mode collar
US7735575B2 (en) 2007-11-21 2010-06-15 Black & Decker Inc. Hammer drill with hard hammer support structure
US7762349B2 (en) 2007-11-21 2010-07-27 Black & Decker Inc. Multi-speed drill and transmission with low gear only clutch
US7854274B2 (en) 2007-11-21 2010-12-21 Black & Decker Inc. Multi-mode drill and transmission sub-assembly including a gear case cover supporting biasing
US7770660B2 (en) 2007-11-21 2010-08-10 Black & Decker Inc. Mid-handle drill construction and assembly process
CN101444909B (zh) * 2007-11-27 2013-03-27 希尔蒂股份公司 具有气动冲击装置的手持式工具机
US8636081B2 (en) 2011-12-15 2014-01-28 Milwaukee Electric Tool Corporation Rotary hammer
WO2011153689A1 (fr) * 2010-06-09 2011-12-15 Bosch Power Tools (China) Co., Ltd. Mécanisme de percussion
US9630307B2 (en) 2012-08-22 2017-04-25 Milwaukee Electric Tool Corporation Rotary hammer
CN206200893U (zh) * 2016-10-20 2017-05-31 布兰特·戈登·麦克阿瑟 一种可配合家用电钻使用的电动凿具

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3120326A1 (de) * 1980-10-21 1982-05-27 Robert Bosch Gmbh, 7000 Stuttgart Bohrhammer

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2449191C2 (de) * 1974-10-16 1988-03-24 Robert Bosch Gmbh, 7000 Stuttgart Hammer
DE2820128A1 (de) * 1978-05-09 1979-11-22 Bosch Gmbh Robert Handwerkzeugmaschine
FI67126C (fi) * 1982-09-27 1985-01-10 Tampella Oy Ab Kontinuerligt roterande slagborrmaskin
NL8304043A (nl) * 1983-11-24 1985-06-17 Skil Nederland Nv Inrichting voor het aandrijven van een boor- en/of slaggereedschap.
DE3506695A1 (de) * 1985-02-26 1986-08-28 Robert Bosch Gmbh, 7000 Stuttgart Bohrhammer
DE3516494A1 (de) * 1985-05-08 1986-11-13 Hilti Ag, Schaan Bohrhammer
DE9015285U1 (fr) * 1990-02-13 1991-06-06 Kiefer, Klaus Juergen, 2000 Hamburg, De
CN2098341U (zh) * 1991-05-20 1992-03-11 庄建龙 一种电钻变冲击电钻的装置
DE4215288A1 (de) * 1991-07-08 1993-01-14 Bosch Gmbh Robert Bohrhammer

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3120326A1 (de) * 1980-10-21 1982-05-27 Robert Bosch Gmbh, 7000 Stuttgart Bohrhammer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101694147B (zh) * 2009-10-17 2011-11-16 中北大学 高水基液压凿岩机

Also Published As

Publication number Publication date
CN1153091A (zh) 1997-07-02
JPH09168979A (ja) 1997-06-30
EP0771618B1 (fr) 2002-01-02
DE19540396A1 (de) 1997-05-07
CN1068538C (zh) 2001-07-18
DE59608538D1 (de) 2002-02-07
EP0771618A3 (fr) 1998-06-10
US5787996A (en) 1998-08-04

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