ZA908924B - A percussion device - Google Patents

A percussion device

Info

Publication number
ZA908924B
ZA908924B ZA908924A ZA908924A ZA908924B ZA 908924 B ZA908924 B ZA 908924B ZA 908924 A ZA908924 A ZA 908924A ZA 908924 A ZA908924 A ZA 908924A ZA 908924 B ZA908924 B ZA 908924B
Authority
ZA
South Africa
Prior art keywords
percussion
piston
crank mechanism
air cushions
cushion
Prior art date
Application number
ZA908924A
Other languages
English (en)
Inventor
Josef Erlach
Erlach Josef
Original Assignee
Sulzer 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 Sulzer Ag filed Critical Sulzer Ag
Publication of ZA908924B publication Critical patent/ZA908924B/xx

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Physical Deposition Of Substances That Are Components Of Semiconductor Devices (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Compressor (AREA)
  • Lock And Its Accessories (AREA)
  • Disintegrating Or Milling (AREA)
  • Earth Drilling (AREA)
ZA908924A 1990-01-15 1990-11-07 A percussion device ZA908924B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH12090 1990-01-15

Publications (1)

Publication Number Publication Date
ZA908924B true ZA908924B (en) 1991-08-28

Family

ID=4179709

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA908924A ZA908924B (en) 1990-01-15 1990-11-07 A percussion device

Country Status (9)

Country Link
US (1) US5161623A (xx)
EP (1) EP0438029B1 (xx)
JP (1) JPH04217472A (xx)
AT (1) ATE98547T1 (xx)
AU (1) AU632652B2 (xx)
CA (1) CA2033848C (xx)
DE (1) DE59003889D1 (xx)
FI (1) FI94036C (xx)
ZA (1) ZA908924B (xx)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19728729C2 (de) * 1997-07-04 2000-11-09 Wacker Werke Kg Luftfeder-Schlagwerk mit Luftausgleich
DE19828426C2 (de) * 1998-06-25 2003-04-03 Wacker Werke Kg Antriebskolben mit geringer Wandstärke für ein Luftfederschlagwerk
DE19843642B4 (de) * 1998-09-23 2004-03-25 Wacker Construction Equipment Ag Luftfederschlagwerk mit Rückholluftfeder
DE10145464C2 (de) * 2001-09-14 2003-08-28 Wacker Construction Equipment Bohr- und/oder Schlaghammer mit anpressdruckabhängiger Leerlaufsteuerung
GB0428210D0 (en) * 2004-12-23 2005-01-26 Black & Decker Inc Mode change mechanism
DE102005019711A1 (de) * 2005-04-28 2006-11-09 Robert Bosch Gmbh Handwerkzeugmaschinenschlagwerkeinheit
DE102012206452A1 (de) * 2012-04-19 2013-10-24 Hilti Aktiengesellschaft Handwerkzeugmaschine und Steuerungsverfahren
DE102012206445A1 (de) * 2012-04-19 2013-10-24 Hilti Aktiengesellschaft Werkzeugmaschine
EP2871028A1 (de) * 2013-11-11 2015-05-13 HILTI Aktiengesellschaft Handwerkzeugmaschine
EP3181298A1 (de) * 2015-12-15 2017-06-21 HILTI Aktiengesellschaft Schlagende werkzeugmaschine
US10814468B2 (en) 2017-10-20 2020-10-27 Milwaukee Electric Tool Corporation Percussion tool
CN214723936U (zh) 2018-01-26 2021-11-16 米沃奇电动工具公司 冲击工具
CN116494185B (zh) * 2023-05-29 2023-10-20 浙江德硕科技股份有限公司 一种带防尘和冷却功能的电镐

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1093302A (en) * 1910-03-01 1914-04-14 Pneumelectric Machine Company Pressure-developing pneumatic tool.
US1891411A (en) * 1928-02-24 1932-12-20 Cleveland Rock Drill Co Percussive drill
US1827877A (en) * 1929-03-06 1931-10-20 John H Meeker Power hammer
US1881886A (en) * 1931-04-06 1932-10-11 Independent Pneumatic Tool Co Valve construction for pneumatic tools
US2426409A (en) * 1944-03-31 1947-08-26 Chicago Pneumatic Tool Co Distributing valve for percussive tools
US3114421A (en) * 1960-04-04 1963-12-17 Skil Corp Pneumatic system for a rotary hammer device
DE2023913B2 (de) * 1970-05-15 1978-11-02 Hilti Ag, Schaan (Liechtenstein) Elektropneumatischer Bohrhammer
SE393940B (sv) * 1973-12-31 1977-05-31 Atlas Copco Ab Forfarande for dempning av en i ett slagverk ingaende slagkolvs rorelse samt slagverk for genomforande av forfarandet
DE2832169A1 (de) * 1978-07-21 1980-01-31 Hilti Ag Motorisch betriebener bohrhammer
DE2854569A1 (de) * 1978-12-18 1980-06-26 Hilti Ag Bohr- und meisselhammer
DE2854953C2 (de) * 1978-12-20 1982-11-18 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Bohrhammer
CH649604A5 (en) * 1980-07-11 1985-05-31 Vni I Pk I Percussive machine
DE3539030A1 (de) * 1985-11-02 1987-05-07 Hilti Ag Bohrhammer mit pneumatisch angetriebenem schlagkolben
US4823886A (en) * 1988-04-29 1989-04-25 Vladimir Pyatov Vacuum-compression type percussion power tool

Also Published As

Publication number Publication date
JPH04217472A (ja) 1992-08-07
DE59003889D1 (de) 1994-01-27
EP0438029A1 (de) 1991-07-24
US5161623A (en) 1992-11-10
ATE98547T1 (de) 1994-01-15
CA2033848A1 (en) 1991-07-16
FI94036C (fi) 1995-07-10
EP0438029B1 (de) 1993-12-15
AU632652B2 (en) 1993-01-07
CA2033848C (en) 2000-08-15
AU6933491A (en) 1991-07-18
FI94036B (fi) 1995-03-31
FI906465A0 (fi) 1990-12-31
FI906465A (fi) 1991-07-16

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