EP1642685A1 - Bohr- und/oder Meisselhammer - Google Patents
Bohr- und/oder Meisselhammer Download PDFInfo
- Publication number
- EP1642685A1 EP1642685A1 EP05108921A EP05108921A EP1642685A1 EP 1642685 A1 EP1642685 A1 EP 1642685A1 EP 05108921 A EP05108921 A EP 05108921A EP 05108921 A EP05108921 A EP 05108921A EP 1642685 A1 EP1642685 A1 EP 1642685A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- housing
- drill
- chisel hammer
- hammer
- guide tube
- 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- Withdrawn
Links
Images
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
-
- 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
- B25D2222/00—Materials of the tool or the workpiece
- B25D2222/21—Metals
- B25D2222/24—Aluminium
-
- 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
- B25D2250/121—Housing details
Definitions
- the invention relates to a drill and / or chisel hammer, referred to in the preamble of claim 1. Art.
- the motor and the gear are arranged, for example, to protect against external influences in each case in a housing within a device housing of a generic drill and / or chisel hammer.
- this also comprises a further housing, wherein this housing is usually formed in two parts and has an inner housing or guide tube and a surrounding flange tube. Due to the two-part design, the housing of the percussion on a large installation effort and a high weight.
- a hydraulic breaker for hydraulically operated excavators and excavators which has a one-piece machine housing made of cast metal.
- the machine housing comprises a housing or guide tube for the impact mechanism, a housing support and stiffening partitions.
- a disadvantage of the known solution is that the machine housing has a very high weight and thus is in particular unsuitable for a hand-held drill and / or chisel hammer.
- the object of the invention is to provide housing for individual components of a particular hand-held drill and / or chisel hammer, which are much cheaper and flexible to manufacture and have a low weight.
- At least one of the housings is made of an extruded profile.
- the cross section of the extruded profile is formed and manufactured in a predetermined length as a semi-finished product.
- Different housing concepts can be realized by different cut to length extruded sections. There are much lower manufacturing and tooling costs than in the known solutions.
- the cut extruded profile sections with a constant wall thickness on an uninterrupted fiber flow which ensures a long service life and reliability of the housing.
- the housing made of an extruded profile are recycling-friendly, since a material separation in the disposal of the housing is eliminated.
- the extruded profile is made of an aluminum alloy. Housing made of these extruded profiles have a low weight in relation to their dimensions.
- the extruded profile is made of an aluminum alloy according to DIN EN 1706 or DIN EN 755 Part 1-9.
- the extruded profile is made of a magnesium alloy. Housing from these extruded profiles also have a low weight in relation to their dimensions.
- the extruded profile is made of a magnesium alloy according to ASTM B107 / B107M or DIN 977-1, -2, -3.
- a plurality of housings disposed within the device housing of the rotary and / or chisel hammer are manufactured from an extruded profile, all housings made of extruded profiles, which are made of the same material, are advantageously produced, whereby the housings can be connected to one another in a materially bonded manner.
- all housings can be combined to form a housing group that is easy to install allows and has a low weight.
- the third housing is rotatably mounted to the first and / or second housing.
- the first housing for the motor and the second housing for the transmission are formed as a housing unit.
- This housing block is made of a single, an appropriately trained cross-section extruded profile. With the merger of the first and the second housing, individual wall sections can be saved and thus further reduce the weight of these housings as a whole. By using a single extruded profile sufficient rigidity of the housing unit or the housing block is ensured.
- At least one cover part is preferably provided on the first housing for the motor and / or on the second housing for the transmission, which protects the motor and / or the transmission arranged inside the housing in a simple manner from external influences.
- cover parts are provided at both ends of the housing or housing.
- the necessary openings for supply and discharge of cooling air to the engine and transmission are advantageously provided on the at least one cover part, whereby machining of the extruded profile sections for the housing is eliminated and the manufacturing costs can be kept low.
- On the extruded profile receptacles for fastening means, such as screws, are further advantageous, which allow easy fixing of the at least one cover part serving as a cover.
- the at least one cover part is made for example of a light metal or a suitable plastic.
- the third housing for the striking mechanism is designed as a guide tube, in which at least one striker and / or an exciter piston of the percussion mechanism are displaceably arranged.
- Different percussion types are realized, for example, by differently cut extruded profiles. With the extruded profile fewer parts are required for the housing of the impact mechanism, which not only significantly affects the total weight, but also reduces the assembly effort.
- the guide tube for the striking mechanism in the longitudinal direction extending channels, so that it can be dispensed with the arrangement of an additional covering tube, such as a flange.
- an additional covering tube such as a flange.
- the guide tube on outwardly directed ribs which additionally supports the heat dissipation by using the cooling air supplied to the drill and / or chisel hammer or the use of the exhaust air from the engine and / or transmission. Both measures individually but especially together ensure that the made of an extruded guide tube for the striking mechanism is exposed to only a slight heat distortion and thus has a sufficiently long service life.
- the running surfaces of the guide tube are coated so that self-lubricating running surfaces are provided for the components of the striking mechanism arranged in the guide tube.
- CVD chemical vapor deposition
- PVD plasma vapor deposition
- Another possibility is the coating of the running surfaces by means of oxidation.
- the coating of the running surfaces of a guide tube which is made of an aluminum alloy, carried out by hard anodization.
- the chisel hammer 1 shown in FIGS. 1 and 2 comprises a device housing 2, a motor 3 arranged in a first housing 11, a transmission 4 arranged in a second housing 12 and a percussion mechanism 5 comprising a third housing 21, all housings 11, 12 and 21 are made of extruded profiles made of aluminum alloy.
- the first housing 11 and the second housing 12 are formed as a housing unit 13, the housing unit 13 being formed of an extruded section.
- two cover parts 14, 15 are defined as the conclusion of the end faces of the extruded profile.
- the third housing 21 is formed as a guide tube 22 in which an anvil 6 and a field piston 7 of the impact mechanism 5 is arranged displaceably.
- the guide tube 22 has in the longitudinal direction L extending channels 23 and outwardly directed ribs 24. To improve the sliding properties and to increase the strength, the running surfaces 25 of the guide tube 22 are coated in a vacuum coating process.
- the third housing 21 for the impact mechanism 5 is fixedly connected to the second housing 12 for the transmission 4 or to the housing unit 13, for example by means of a protective gas welding.
- a bore 16 was provided in a wall of the second housing 12 and the housing unit 13, which opens the second housing 12 to the third housing 21 and allows connection of the excitation piston 7 arranged in the guide tube 22 with the transmission 4 via a connecting rod 8.
- all housings 11, 12 and 21 form a housing group which has a low weight and allows easy mounting of the chisel hammer 1.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Percussive Tools And Related Accessories (AREA)
- Earth Drilling (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004047606A DE102004047606A1 (de) | 2004-09-30 | 2004-09-30 | Bohr- und/oder Meisselhammer |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1642685A1 true EP1642685A1 (de) | 2006-04-05 |
Family
ID=35501244
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05108921A Withdrawn EP1642685A1 (de) | 2004-09-30 | 2005-09-27 | Bohr- und/oder Meisselhammer |
Country Status (4)
Country | Link |
---|---|
US (1) | US20060065417A1 (ja) |
EP (1) | EP1642685A1 (ja) |
JP (1) | JP2006102935A (ja) |
DE (1) | DE102004047606A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT519589A1 (de) * | 2017-01-24 | 2018-08-15 | Fill Gmbh | Entkernhammer zum Entkernen von Gusswerkstücken |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB0912283D0 (en) | 2009-07-15 | 2009-08-26 | Black & Decker Inc | Motor driven hammer having means for controlling the power of impact |
US8602124B2 (en) * | 2010-12-29 | 2013-12-10 | Medical Enterprises, Llc | Electric motor driven tool for orthopedic impacting |
US8695726B2 (en) | 2010-12-29 | 2014-04-15 | Medical Enterprises LLC | Electric motor driven tool for orthopedic impacting |
US8393409B2 (en) * | 2010-12-29 | 2013-03-12 | Ortho Technologies, Llc | Electric motor driven tool for orthopedic impacting |
JP2013091117A (ja) * | 2011-10-24 | 2013-05-16 | Makita Corp | 打撃工具 |
WO2013178246A1 (de) * | 2012-05-29 | 2013-12-05 | Hilti Aktiengesellschaft | Brennkraftbetriebenes setzgerät |
US20170106440A1 (en) * | 2014-06-09 | 2017-04-20 | O.M.Ler 2000 S.R.L. | De-coring vibrator or pneumatic hammer for de-coring of foundry castings with aluminium alloy jacket |
CN213259295U (zh) | 2017-10-20 | 2021-05-25 | 米沃奇电动工具公司 | 用于通过凿子在工件上执行开凿操作的冲击工具 |
US11059155B2 (en) | 2018-01-26 | 2021-07-13 | Milwaukee Electric Tool Corporation | Percussion tool |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3874460A (en) * | 1972-10-28 | 1975-04-01 | Bosch Gmbh Robert | Impact wrench |
US4474077A (en) * | 1982-02-01 | 1984-10-02 | Black & Decker Inc. | Housing retaining means for portable power tools and method of assembly therefor |
EP0731248A1 (de) * | 1995-03-10 | 1996-09-11 | Tracto-Technik Paul Schmidt Spezialmaschinen Kg | Schlaggerät |
EP0759341A2 (en) * | 1995-08-18 | 1997-02-26 | Makita Corporation | Hammer drill with an idling strike prevention mechanism |
US6241500B1 (en) * | 2000-03-23 | 2001-06-05 | Cooper Brands, Inc. | Double-throw air motor with reverse feature |
DE10201895A1 (de) * | 2001-01-19 | 2002-08-14 | Hitachi Koki Kk | Schlagwerkzeug |
EP1323501A2 (en) * | 2001-12-27 | 2003-07-02 | Black & Decker Inc. | Combined fastenerless motor end cap and output device mounting |
US20030137114A1 (en) * | 2000-09-08 | 2003-07-24 | Otto Baumann | Tool mounting for a hand machine tool |
US20040000414A1 (en) * | 2002-04-11 | 2004-01-01 | Karl Echtler | Method of manufacturing a percussion mechanism of a hand-held power tool |
DE10357758A1 (de) * | 2003-12-10 | 2005-07-21 | Wacker Construction Equipment Ag | Aufbruch- und/oder Bohrhammer mit linear geführter Griffeinrichtung |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2136523C3 (de) * | 1971-07-21 | 1983-11-03 | Hilti AG, 9494 Schaan | Elektrobohrhammer |
DE2242944B2 (de) * | 1972-08-31 | 1981-04-23 | Robert Bosch Gmbh, 7000 Stuttgart | Bohrhammer |
DE2449191C2 (de) * | 1974-10-16 | 1988-03-24 | Robert Bosch Gmbh, 7000 Stuttgart | Hammer |
US4114699A (en) * | 1976-01-22 | 1978-09-19 | Licentia Patent-Verwaltungs-Gmbh | Pneumatic rotary hammer device |
DE2728961C2 (de) * | 1977-06-27 | 1991-08-08 | Hilti Ag, Schaan | Bohrhammer mit arretierbarem Werkzeughalter |
ZA803409B (en) * | 1979-06-18 | 1981-05-27 | Kango Electric Hammers Ltd | Hammer drill |
US4384622A (en) * | 1979-11-16 | 1983-05-24 | Peter Koziniak | Impact wrench with linear motion hammer adapter |
ATE9881T1 (de) * | 1980-09-22 | 1984-11-15 | Black & Decker Inc. | Drehschlag-bohrwerkzeug. |
DE3329005A1 (de) * | 1983-08-11 | 1985-02-28 | Robert Bosch Gmbh, 7000 Stuttgart | Bohrhammer |
DE3516494A1 (de) * | 1985-05-08 | 1986-11-13 | Hilti Ag, Schaan | Bohrhammer |
DE3718804A1 (de) * | 1987-06-05 | 1988-12-15 | Gardner Denver Gmbh | Schrauber |
DE8809892U1 (de) * | 1988-08-03 | 1989-12-07 | Robert Bosch Gmbh, 7000 Stuttgart | Gehäuse für einen Handhobel |
US4991472A (en) * | 1988-11-04 | 1991-02-12 | James Curtis Hilliard | D.C. direct drive impact wrench |
US6044917A (en) * | 1996-03-18 | 2000-04-04 | Brunhoelzl; George | Pneumatic tool with side exhaust |
DE10034359A1 (de) * | 2000-07-14 | 2002-01-24 | Hilti Ag | Schlagendes Elektrohandwerkzeuggerät |
GB0121947D0 (en) * | 2001-09-12 | 2001-10-31 | Black & Decker Inc | Tool holder for hammer |
EP1302281B1 (de) * | 2001-10-15 | 2007-05-02 | HILTI Aktiengesellschaft | Kühlluftleitung für ein Elektrohandwerkzeuggerät mit elektropneumatischem Schlagwerk |
US6557649B1 (en) * | 2001-12-03 | 2003-05-06 | Shu Yi Yang | Pneumatic tool structure |
DE10160864A1 (de) * | 2001-12-12 | 2003-06-26 | Hilti Ag | Axial schlagendes Elektrohandwerkzeuggerät |
-
2004
- 2004-09-30 DE DE102004047606A patent/DE102004047606A1/de not_active Ceased
-
2005
- 2005-09-20 US US11/232,385 patent/US20060065417A1/en not_active Abandoned
- 2005-09-27 EP EP05108921A patent/EP1642685A1/de not_active Withdrawn
- 2005-09-30 JP JP2005286675A patent/JP2006102935A/ja not_active Withdrawn
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3874460A (en) * | 1972-10-28 | 1975-04-01 | Bosch Gmbh Robert | Impact wrench |
US4474077A (en) * | 1982-02-01 | 1984-10-02 | Black & Decker Inc. | Housing retaining means for portable power tools and method of assembly therefor |
EP0731248A1 (de) * | 1995-03-10 | 1996-09-11 | Tracto-Technik Paul Schmidt Spezialmaschinen Kg | Schlaggerät |
EP0759341A2 (en) * | 1995-08-18 | 1997-02-26 | Makita Corporation | Hammer drill with an idling strike prevention mechanism |
US6241500B1 (en) * | 2000-03-23 | 2001-06-05 | Cooper Brands, Inc. | Double-throw air motor with reverse feature |
US20030137114A1 (en) * | 2000-09-08 | 2003-07-24 | Otto Baumann | Tool mounting for a hand machine tool |
DE10201895A1 (de) * | 2001-01-19 | 2002-08-14 | Hitachi Koki Kk | Schlagwerkzeug |
EP1323501A2 (en) * | 2001-12-27 | 2003-07-02 | Black & Decker Inc. | Combined fastenerless motor end cap and output device mounting |
US20040000414A1 (en) * | 2002-04-11 | 2004-01-01 | Karl Echtler | Method of manufacturing a percussion mechanism of a hand-held power tool |
DE10357758A1 (de) * | 2003-12-10 | 2005-07-21 | Wacker Construction Equipment Ag | Aufbruch- und/oder Bohrhammer mit linear geführter Griffeinrichtung |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT519589A1 (de) * | 2017-01-24 | 2018-08-15 | Fill Gmbh | Entkernhammer zum Entkernen von Gusswerkstücken |
Also Published As
Publication number | Publication date |
---|---|
JP2006102935A (ja) | 2006-04-20 |
DE102004047606A1 (de) | 2006-04-06 |
US20060065417A1 (en) | 2006-03-30 |
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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 |
|
AK | Designated contracting states |
Kind code of ref document: A1 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 NL PL PT RO SE SI SK TR |
|
AX | Request for extension of the european patent |
Extension state: AL BA HR MK YU |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: HILTI AKTIENGESELLSCHAFT |
|
17P | Request for examination filed |
Effective date: 20061005 |
|
AKX | Designation fees paid |
Designated state(s): CH DE FR GB IT LI |
|
17Q | First examination report despatched |
Effective date: 20061117 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20070328 |