DE3030910C2 - - Google Patents

Info

Publication number
DE3030910C2
DE3030910C2 DE19803030910 DE3030910A DE3030910C2 DE 3030910 C2 DE3030910 C2 DE 3030910C2 DE 19803030910 DE19803030910 DE 19803030910 DE 3030910 A DE3030910 A DE 3030910A DE 3030910 C2 DE3030910 C2 DE 3030910C2
Authority
DE
Germany
Prior art keywords
tool according
spring
mass
magnetic
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.)
Expired
Application number
DE19803030910
Other languages
German (de)
English (en)
Other versions
DE3030910A1 (de
Inventor
Richard Worsley Lancashire Gb Ward
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.)
DOBSON PARK INDUSTRIES Ltd NOTTINGHAM NOTTINGHAMSHIRE GB
Original Assignee
DOBSON PARK INDUSTRIES Ltd NOTTINGHAM NOTTINGHAMSHIRE GB
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
Priority claimed from GB7928687A external-priority patent/GB2033544B/en
Application filed by DOBSON PARK INDUSTRIES Ltd NOTTINGHAM NOTTINGHAMSHIRE GB filed Critical DOBSON PARK INDUSTRIES Ltd NOTTINGHAM NOTTINGHAMSHIRE GB
Publication of DE3030910A1 publication Critical patent/DE3030910A1/de
Application granted granted Critical
Publication of DE3030910C2 publication Critical patent/DE3030910C2/de
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D9/00—Portable percussive tools with fluid-pressure drive, i.e. driven directly by fluids, e.g. having several percussive tool bits operated simultaneously
    • B25D9/14—Control devices for the reciprocating piston
    • 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
    • B25D11/064—Means for driving the impulse member using an electromagnetic drive

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Electromagnetism (AREA)
  • Percussive Tools And Related Accessories (AREA)
DE19803030910 1979-08-17 1980-08-16 Schlagendes oder stossendes werkzeug Granted DE3030910A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7928687A GB2033544B (en) 1978-09-13 1979-08-17 Valves

Publications (2)

Publication Number Publication Date
DE3030910A1 DE3030910A1 (de) 1981-03-26
DE3030910C2 true DE3030910C2 (enExample) 1987-08-06

Family

ID=10507271

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19803030910 Granted DE3030910A1 (de) 1979-08-17 1980-08-16 Schlagendes oder stossendes werkzeug

Country Status (1)

Country Link
DE (1) DE3030910A1 (enExample)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005017483B4 (de) * 2005-04-15 2007-04-05 Compact Dynamics Gmbh Linearaktor in einem Elektro-Schlagwerkzeug
DE102005017481B4 (de) 2005-04-15 2007-08-30 Compact Dynamics Gmbh Linearaktor
DE102005017482B4 (de) 2005-04-15 2007-05-03 Compact Dynamics Gmbh Gaswechselventilaktor für einen ventilgesteuerten Verbrennungsmotor
NO335354B1 (no) 2013-02-18 2014-12-01 Pav Holding As Høyfrekvent væskedrevet borhammer for perkusjonsboring i harde formasjoner
CN107914247A (zh) * 2017-12-18 2018-04-17 付国华 一种电磁式电镐

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH359108A (de) * 1958-05-08 1961-12-15 Elemag Anstalt Elektrisches Schlaggerät, insbesondere Schlaghammer
DE2111653C3 (de) * 1971-03-11 1974-12-19 Erwin 8931 Hiltenfingen Lueer Druckluftbetätigter Klopfer
US3925985A (en) * 1973-01-09 1975-12-16 Rapidex Inc Impact actuator

Also Published As

Publication number Publication date
DE3030910A1 (de) 1981-03-26

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Legal Events

Date Code Title Description
8101 Request for examination as to novelty
8105 Search report available
8110 Request for examination paragraph 44
D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee