IE37985B1 - Improvements in or relating to printing machines - Google Patents
Improvements in or relating to printing machinesInfo
- Publication number
- IE37985B1 IE37985B1 IE1365/73A IE136573A IE37985B1 IE 37985 B1 IE37985 B1 IE 37985B1 IE 1365/73 A IE1365/73 A IE 1365/73A IE 136573 A IE136573 A IE 136573A IE 37985 B1 IE37985 B1 IE 37985B1
- Authority
- IE
- Ireland
- Prior art keywords
- coil
- coils
- head
- sheet
- electric
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
- H02K41/02—Linear motors; Sectional motors
- H02K41/035—DC motors; Unipolar motors
- H02K41/0352—Unipolar motors
- H02K41/0354—Lorentz force motors, e.g. voice coil motors
- H02K41/0356—Lorentz force motors, e.g. voice coil motors moving along a straight path
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J19/00—Character- or line-spacing mechanisms
- B41J19/18—Character-spacing or back-spacing mechanisms; Carriage return or release devices therefor
- B41J19/20—Positive-feed character-spacing mechanisms
- B41J19/30—Electromagnetically-operated mechanisms
- B41J19/305—Linear drive mechanisms for carriage movement
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Electromagnetism (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Power Engineering (AREA)
- Character Spaces And Line Spaces In Printers (AREA)
- Impact Printers (AREA)
- Common Mechanisms (AREA)
Abstract
1392010 Reciprocating electric motors BELL PUNCH CO Ltd 17 Aug 1973 [18 Aug 1972 17 Nov 1972] 38759/72 and 53193/72 Heading H2A [Also in Division B6] In a printing machine in which a print head 36 moves relatively to a sheet when printing on the sheet, the head is moved by a drive mechanism 10 which comprises means e.g. electrical coils 22 for providing a magnetic field normal to the longitudinal axis of an elongated member, e.g. a mild steel bar 14, upon which is slidably mounted for movement parallel to the axis of the member on electrical conductor, e.g. a coil 32, upon which the print head is secured and which coil 32 is arranged to conduct electric current in a direction which is normal to both the axis and the magnetic field, and there is provided an electric circuit for supplying current to the coil 32 and/or the coils 22 so that the coil 32 moves longitudinally of the bar 14. As shown, the circuit to the coils 22 comprises a smoothing 24 and rectifier bridge 26 connected to an A.C. mains, whilst that to the coil 32 includes a step-down transformer 44 and a control circuit 40 while input 41 is connected to position control circuitry which causes the control circuit to generate a waveform whose shape determines the speed and direction of the head reciprocation; other circuits drive the sheet to be printed. Alternatively, these two supply circuits may be connected respectively, to the other coils 32, 22. The former 30 of coil 32 has on its cheeks shock-absorbing material 34. In other embodiments, the head and moving coil assembly are slidably mounted on rollers, and the mechanism is of tubular configuration. Position control may also be effected by a sensor comprising a stationary non-magnetic tape (52<SP>1</SP>), Fig. 4, having seven lines of perforations for co-operation with seven light-emitting diodes (56) and photo-electric diodes (58), Fig. 6, carried by the moving coil.
[GB1392010A]
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3875972 | 1972-08-18 | ||
GB5319372A GB1392010A (en) | 1972-08-18 | 1972-11-17 | Printing machines |
Publications (2)
Publication Number | Publication Date |
---|---|
IE37985L IE37985L (en) | 1974-02-18 |
IE37985B1 true IE37985B1 (en) | 1977-11-23 |
Family
ID=26263903
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IE1365/73A IE37985B1 (en) | 1972-08-18 | 1973-08-09 | Improvements in or relating to printing machines |
Country Status (8)
Country | Link |
---|---|
US (1) | US3867675A (en) |
DE (1) | DE2341754A1 (en) |
FR (1) | FR2196606A5 (en) |
GB (1) | GB1392010A (en) |
IE (1) | IE37985B1 (en) |
IT (1) | IT998388B (en) |
LU (1) | LU68258A1 (en) |
NL (1) | NL7311402A (en) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4044881A (en) * | 1976-04-13 | 1977-08-30 | International Business Machines Corporation | Serial printer with linear motor drive |
US4149808A (en) * | 1977-09-14 | 1979-04-17 | Exxon Research & Engineering Co. | Linear drive for a printing apparatus |
US4230978A (en) * | 1978-02-24 | 1980-10-28 | Compugraphic Corporation | Impulse drive system |
US4245259A (en) * | 1978-03-01 | 1981-01-13 | Am International, Inc. | Inertia drive head for optical scanning and readout |
US4404572A (en) * | 1979-01-31 | 1983-09-13 | Canon Kabushiki Kaisha | Recording apparatus |
DE3003024A1 (en) * | 1980-01-29 | 1981-07-30 | Kernforschungszentrum Karlsruhe Gmbh, 7500 Karlsruhe | FLUESSIGHELIUM PUMP |
FR2459138A1 (en) * | 1979-06-19 | 1981-01-09 | Realisations Etud Electro | LINEAR MOTOR PRINTER |
US4357567A (en) * | 1979-10-19 | 1982-11-02 | Barcrest Limited | Reversible motor |
JPS5662179A (en) * | 1979-10-26 | 1981-05-27 | Canon Inc | Recording device |
US4409576A (en) * | 1982-02-03 | 1983-10-11 | Polaroid Corporation | Method and apparatus which change magnetic forces of a linear motor |
US4565497A (en) * | 1982-12-03 | 1986-01-21 | Novacor Medical Corporation | Pump actuator |
JPH0239815Y2 (en) * | 1984-11-08 | 1990-10-24 | ||
US4764815A (en) * | 1985-06-24 | 1988-08-16 | Powers Chemco | Array scanning system with movable platen |
US4792858A (en) * | 1987-06-05 | 1988-12-20 | Powers Chemco, Inc. | Optical scanning system having a rotatable platen assembly and method for loading same |
DE4027553C1 (en) * | 1990-08-31 | 1991-10-02 | Bruno 8037 Olching De Gruber | |
US5726568A (en) * | 1995-06-07 | 1998-03-10 | International Business Machines Corporation | Magneto-repulsion punching with dynamic damping |
EP1269612B1 (en) * | 2000-03-28 | 2009-05-06 | Custom Sensors & Technologies, Inc. | Linear voice coil actuator with compensating coils |
AT510941B1 (en) * | 2011-09-05 | 2012-07-15 | Seh Ltd | MAGNETIC DEVICE |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3688035A (en) * | 1970-05-28 | 1972-08-29 | Teletype Corp | Teleprinter type selection and assembly therefor |
-
1972
- 1972-11-17 GB GB5319372A patent/GB1392010A/en not_active Expired
-
1973
- 1973-08-09 IE IE1365/73A patent/IE37985B1/en unknown
- 1973-08-13 US US388664A patent/US3867675A/en not_active Expired - Lifetime
- 1973-08-17 LU LU68258A patent/LU68258A1/xx unknown
- 1973-08-17 FR FR7330092A patent/FR2196606A5/fr not_active Expired
- 1973-08-17 IT IT27995/73A patent/IT998388B/en active
- 1973-08-17 NL NL7311402A patent/NL7311402A/xx unknown
- 1973-08-17 DE DE19732341754 patent/DE2341754A1/en active Pending
Also Published As
Publication number | Publication date |
---|---|
IE37985L (en) | 1974-02-18 |
NL7311402A (en) | 1974-02-20 |
GB1392010A (en) | 1975-04-23 |
FR2196606A5 (en) | 1974-03-15 |
LU68258A1 (en) | 1973-10-24 |
US3867675A (en) | 1975-02-18 |
IT998388B (en) | 1976-01-20 |
DE2341754A1 (en) | 1974-02-28 |
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