FR2430827A1 - Control for electromagnetic percussive motor - has regulator to effect coordination of trigger impulses and core plunger motion to promote resonance - Google Patents

Control for electromagnetic percussive motor - has regulator to effect coordination of trigger impulses and core plunger motion to promote resonance

Info

Publication number
FR2430827A1
FR2430827A1 FR7821601A FR7821601A FR2430827A1 FR 2430827 A1 FR2430827 A1 FR 2430827A1 FR 7821601 A FR7821601 A FR 7821601A FR 7821601 A FR7821601 A FR 7821601A FR 2430827 A1 FR2430827 A1 FR 2430827A1
Authority
FR
France
Prior art keywords
regulator
electromagnetic
control
plunger motion
trigger impulses
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
FR7821601A
Other languages
French (fr)
Other versions
FR2430827B1 (en
Inventor
Georges Jacquemet
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.)
MARTELEC
Original Assignee
MARTELEC
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 MARTELEC filed Critical MARTELEC
Priority to FR7821601A priority Critical patent/FR2430827A1/en
Publication of FR2430827A1 publication Critical patent/FR2430827A1/en
Application granted granted Critical
Publication of FR2430827B1 publication Critical patent/FR2430827B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/18—Circuit arrangements for obtaining desired operating characteristics, e.g. for slow operation, for sequential energisation of windings, for high-speed energisation of windings
    • 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)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Portable Nailing Machines And Staplers (AREA)

Abstract

The electro-magnetic percussive motor has a core plunger (8) which is mounted in the coil (6) of an electro-magnet (7), and having circuitry which includes capacitors (4) with charge (3) and discharge(5) thyristors controlled by an impulse emitter (10). The coil moves the plunger to accummulte electrical energy, with the return movement imparting the hammer blow, and capacitor discharge gives rise to a short term coil impulse which instigates the return. A potentiometer may be included in the electronic control circuit, being used to effect an adjustable co-ordination of trigger impulses and plunger motion.
FR7821601A 1978-07-12 1978-07-12 Control for electromagnetic percussive motor - has regulator to effect coordination of trigger impulses and core plunger motion to promote resonance Granted FR2430827A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7821601A FR2430827A1 (en) 1978-07-12 1978-07-12 Control for electromagnetic percussive motor - has regulator to effect coordination of trigger impulses and core plunger motion to promote resonance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7821601A FR2430827A1 (en) 1978-07-12 1978-07-12 Control for electromagnetic percussive motor - has regulator to effect coordination of trigger impulses and core plunger motion to promote resonance

Publications (2)

Publication Number Publication Date
FR2430827A1 true FR2430827A1 (en) 1980-02-08
FR2430827B1 FR2430827B1 (en) 1981-01-09

Family

ID=9210991

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7821601A Granted FR2430827A1 (en) 1978-07-12 1978-07-12 Control for electromagnetic percussive motor - has regulator to effect coordination of trigger impulses and core plunger motion to promote resonance

Country Status (1)

Country Link
FR (1) FR2430827A1 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2531363A1 (en) * 1982-08-03 1984-02-10 Martelec METHOD AND DEVICE FOR SELF-SYNCHRONIZED CONTROL OF AN ELECTRO-MAGNETIC HAMMER
FR2542373A1 (en) * 1983-03-01 1984-09-14 Fev Forsch Energietech Verbr METHOD FOR STARTING ADJUSTING DEVICES FOR VOLUMETRIC MACHINES
EP0118591A1 (en) * 1983-03-04 1984-09-19 Klöckner, Wolfgang, Dr. Process and device for activating an electromagnetic positioner
US4490654A (en) * 1983-06-10 1984-12-25 The Arthur G. Russell Company, Incorporated Control circuit for vibratory devices
EP0265566A1 (en) * 1986-10-24 1988-05-04 Procedes Techniques De Construction Electromagnetic percussion pile driver
WO1999035656A3 (en) * 1998-01-08 1999-09-23 Robotech Inc Magnet assembly with reciprocating core member and associated method of operation
EP2210711A1 (en) 2009-01-21 2010-07-28 HILTI Aktiengesellschaft Striking mechanism and hand tool machine

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH358763A (en) * 1958-07-16 1961-11-30 Elemag Anstalt Electronically controlled electromagnetic impact device
FR1584429A (en) * 1967-09-13 1969-12-19
DE2309514A1 (en) * 1972-05-08 1973-11-29 Faessler Heinz ELECTROMAGNETIC STRIKING DEVICE

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH358763A (en) * 1958-07-16 1961-11-30 Elemag Anstalt Electronically controlled electromagnetic impact device
FR1584429A (en) * 1967-09-13 1969-12-19
DE2309514A1 (en) * 1972-05-08 1973-11-29 Faessler Heinz ELECTROMAGNETIC STRIKING DEVICE

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2531363A1 (en) * 1982-08-03 1984-02-10 Martelec METHOD AND DEVICE FOR SELF-SYNCHRONIZED CONTROL OF AN ELECTRO-MAGNETIC HAMMER
EP0101389A1 (en) * 1982-08-03 1984-02-22 Martelec Process and device for the self-synchronised control of an electromagnetic hammer
US4553074A (en) * 1982-08-03 1985-11-12 Martelec Societe Civile Particuliere Method of and apparatus for the autosynchronization of an electromagnetic hammer
FR2542373A1 (en) * 1983-03-01 1984-09-14 Fev Forsch Energietech Verbr METHOD FOR STARTING ADJUSTING DEVICES FOR VOLUMETRIC MACHINES
EP0118591A1 (en) * 1983-03-04 1984-09-19 Klöckner, Wolfgang, Dr. Process and device for activating an electromagnetic positioner
US4490654A (en) * 1983-06-10 1984-12-25 The Arthur G. Russell Company, Incorporated Control circuit for vibratory devices
EP0265566A1 (en) * 1986-10-24 1988-05-04 Procedes Techniques De Construction Electromagnetic percussion pile driver
WO1999035656A3 (en) * 1998-01-08 1999-09-23 Robotech Inc Magnet assembly with reciprocating core member and associated method of operation
US6188151B1 (en) 1998-01-08 2001-02-13 Robotech, Inc. Magnet assembly with reciprocating core member and associated method of operation
EP2210711A1 (en) 2009-01-21 2010-07-28 HILTI Aktiengesellschaft Striking mechanism and hand tool machine
CN101797745B (en) * 2009-01-21 2014-09-10 喜利得股份公司 Striking mechanism and hand tool machine
US9259830B2 (en) 2009-01-21 2016-02-16 Hilti Aktiengesellschaft Striking mechanism and hand-held power tool

Also Published As

Publication number Publication date
FR2430827B1 (en) 1981-01-09

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