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 resonanceInfo
- 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
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
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.
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)
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)
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 |
-
1978
- 1978-07-12 FR FR7821601A patent/FR2430827A1/en active Granted
Patent Citations (3)
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)
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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Legal Events
Date | Code | Title | Description |
---|---|---|---|
CL | Concession to grant licences | ||
ST | Notification of lapse |