EP1352718A1 - Pneumatisches Schlagwerk - Google Patents
Pneumatisches Schlagwerk Download PDFInfo
- Publication number
- EP1352718A1 EP1352718A1 EP03405216A EP03405216A EP1352718A1 EP 1352718 A1 EP1352718 A1 EP 1352718A1 EP 03405216 A EP03405216 A EP 03405216A EP 03405216 A EP03405216 A EP 03405216A EP 1352718 A1 EP1352718 A1 EP 1352718A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- impact
- guide tube
- piston
- flying piston
- tool
- 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
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
- 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
- B25D2217/0023—Pistons
Definitions
- the invention refers to a pneumatic percussion with a hinund by an air spring moved air piston, preferably for use in at least partially beating Hand power tools.
- an electromechanically driven striking mechanism has a Hand tool a, in a guide tube by an air spring back and forth herded flying pistons pointing to an anvil and this the front end of an in a tool holder recorded tool beats.
- the flying piston and the Anvils are usually made of steel, which at sufficiently high mass density for Impact pulse generation also high toughness and strength is achieved.
- US2283292 has a pneumatic percussion a Electric hand tool one in a guide tube by an air spring back and forth moved flying piston out of steel.
- the flying piston in the impact contact area a cylindrical insert made of another, shock-resistant material.
- the non-impact-stressed inner core of the flying piston is also made a metal heavier in steel.
- Such multi-part aircraft pistons point through the Impact damage of the interfaces on a reduced life and are also technologically complex in production.
- the task is to realize a striking mechanism for use in the environment strong magnetic fields.
- a percussion mechanism reciprocates through an air spring Flying piston on which directly or by means of an intermediate Döppers on the Front end of a striking tool received in a tool holder strikes, wherein the one-piece manufactured air piston and / or the striker from a non-ferromagnetic, advantageously curable material.
- the one-piece execution of the flying piston and / or Döppers from a nonferromagnetic material allows full full life Functionality of the impact mechanism even in the environment of strong magnetic fields, such as practical experiments resulted.
- the material is similar mass-dense and / or tough as steel, eg.
- One non-ferromagnetic steel alloy as a conventional chromium-nickel-iron alloy bzpw. V2A or V4A or a hardenable alloy such as X90CrMoV18, creating one for components from steel dimensioned impact mechanism dynamics is still accepted, which is technologically advantageous.
- both the striker and the flying piston from a nonferromagnetic material, thereby further causing magnetically induced sticking is suppressed.
- the flying piston is guided in a guide tube, which continues advantageous from a non-ferromagnetic, preferably diamagnetic material such as a magnesium-aluminum alloy, whereby a magnetically effected Sticking to the guide tube is suppressed.
- a non-ferromagnetic, preferably diamagnetic material such as a magnesium-aluminum alloy
- a hand tool on such a percussion whereby this in environments with strong, especially static, magnetic fields can be used.
- a common power hand tool in the form of an at least partially beating Kombihammers has one in a guide tube made of a magnesium-aluminum alloy guided, reciprocated by an air spring on the piston, which als meets an anvil, which is on the front end of a recorded in a tool holder Impact tool like a chisel strikes.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Percussive Tools And Related Accessories (AREA)
Abstract
Description
Claims (8)
- Schlagwerk mit einem, durch eine Luftfeder hin- und herbewegten Flugkolben, welche direkt oder mittels eines zwischengeordneten Döppers auf das Stirnende eines in einer Werkzeugaufnahme aufgenommenen Werkzeugs schlägt, dadurch gekennzeichnet, dass der aus einem Stück gefertigte Flugkolben und/oder der Döpper aus einem nichtferromagnetischem Material besteht.
- Schlagwerk nach Anspruch 1, dadurch gekennzeichnet, dass das Material ähnlich massendicht und/oder zähefest wie Stahl ist.
- Schlagwerk nach Anspruch 2, dadurch gekennzeichnet, dass das Material eine nichtferromagnetische, optional härtbare, Stahllegierung ist.
- Schlagwerk nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass sowohl der Döpper als auch der Flugkolben aus einem nichtferromagnetischem Material besteht.
- Schlagwerk nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass der Flugkolben in einem in einem Führungsrohr geführt ist.
- Schlagwerk nach Anspruch 5, dadurch gekennzeichnet, dass das Führungsrohr aus einem nichtferromagnetischen Material besteht.
- Schlagwerk nach Anspruch 6, dadurch gekennzeichnet, dass das Führungsrohr aus einem diamagnetischem Material besteht.
- Handwerkzeugmaschine, dadurch gekennzeichnet, dass ein Schlagwerk nach einem der vorherigen Ansprüche vorhanden ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10216051A DE10216051A1 (de) | 2002-04-11 | 2002-04-11 | Pneumatisches Schlagwerk |
DE10216051 | 2002-04-11 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1352718A1 true EP1352718A1 (de) | 2003-10-15 |
EP1352718B1 EP1352718B1 (de) | 2006-03-29 |
Family
ID=28051253
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03405216A Expired - Lifetime EP1352718B1 (de) | 2002-04-11 | 2003-04-01 | Pneumatisches Schlagwerk |
Country Status (5)
Country | Link |
---|---|
US (1) | US20040000414A1 (de) |
EP (1) | EP1352718B1 (de) |
JP (1) | JP2003311650A (de) |
CN (1) | CN1449898A (de) |
DE (2) | DE10216051A1 (de) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004047606A1 (de) * | 2004-09-30 | 2006-04-06 | Hilti Ag | Bohr- und/oder Meisselhammer |
NL1030643C2 (nl) * | 2005-12-12 | 2007-06-13 | Arie Koenraad Jan Rokus Horden | Elektrisch apparaat met slagmechanisme. |
GB0912283D0 (en) | 2009-07-15 | 2009-08-26 | Black & Decker Inc | Motor driven hammer having means for controlling the power of impact |
DE102012013409A1 (de) * | 2012-05-23 | 2013-11-28 | Atlas Copco Construction Tools Gmbh | Schlagvorrichtung |
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 (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3402776A (en) * | 1965-05-12 | 1968-09-24 | Evgeny Vsevolodovich Alexandrov | Device for impact loading a solid body |
EP0759341A2 (de) * | 1995-08-18 | 1997-02-26 | Makita Corporation | Bohrhammer mit einem Mechanismus zum Verhindern von Leerschlägen |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2242944B2 (de) * | 1972-08-31 | 1981-04-23 | Robert Bosch Gmbh, 7000 Stuttgart | Bohrhammer |
JP3413991B2 (ja) * | 1994-10-14 | 2003-06-09 | 日立工機株式会社 | 打込機のピストン装置 |
DE19843642B4 (de) * | 1998-09-23 | 2004-03-25 | Wacker Construction Equipment Ag | Luftfederschlagwerk mit Rückholluftfeder |
DE10033362A1 (de) * | 2000-07-08 | 2002-01-17 | Hilti Ag | Elektrohandwerkzeug mit Leerschlagabschaltung |
DE10103141A1 (de) * | 2001-01-24 | 2002-07-25 | Hilti Ag | Elektrohandwerkzeuggerät mit Leerschlagabschaltung |
-
2002
- 2002-04-11 DE DE10216051A patent/DE10216051A1/de not_active Withdrawn
-
2003
- 2003-04-01 DE DE50302805T patent/DE50302805D1/de not_active Expired - Lifetime
- 2003-04-01 EP EP03405216A patent/EP1352718B1/de not_active Expired - Lifetime
- 2003-04-08 CN CN03109516.XA patent/CN1449898A/zh active Pending
- 2003-04-10 US US10/411,165 patent/US20040000414A1/en not_active Abandoned
- 2003-04-10 JP JP2003106908A patent/JP2003311650A/ja active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3402776A (en) * | 1965-05-12 | 1968-09-24 | Evgeny Vsevolodovich Alexandrov | Device for impact loading a solid body |
EP0759341A2 (de) * | 1995-08-18 | 1997-02-26 | Makita Corporation | Bohrhammer mit einem Mechanismus zum Verhindern von Leerschlägen |
Also Published As
Publication number | Publication date |
---|---|
US20040000414A1 (en) | 2004-01-01 |
EP1352718B1 (de) | 2006-03-29 |
DE10216051A1 (de) | 2003-10-23 |
CN1449898A (zh) | 2003-10-22 |
DE50302805D1 (de) | 2006-05-18 |
JP2003311650A (ja) | 2003-11-05 |
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