JPS6482968A - Printing head - Google Patents

Printing head

Info

Publication number
JPS6482968A
JPS6482968A JP23875087A JP23875087A JPS6482968A JP S6482968 A JPS6482968 A JP S6482968A JP 23875087 A JP23875087 A JP 23875087A JP 23875087 A JP23875087 A JP 23875087A JP S6482968 A JPS6482968 A JP S6482968A
Authority
JP
Japan
Prior art keywords
leaf spring
restrained
fulcrum
impact
armature
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.)
Pending
Application number
JP23875087A
Other languages
Japanese (ja)
Inventor
Akira Asano
Kenji Okuna
Kaname Furuya
Sadayuki Shimizu
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP23875087A priority Critical patent/JPS6482968A/en
Publication of JPS6482968A publication Critical patent/JPS6482968A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/22—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of impact or pressure on a printing material or impression-transfer material
    • B41J2/23—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of impact or pressure on a printing material or impression-transfer material using print wires
    • B41J2/27—Actuators for print wires
    • B41J2/28—Actuators for print wires of spring charge type, i.e. with mechanical power under electro-magnetic control

Landscapes

  • Impact Printers (AREA)

Abstract

PURPOSE:To obtain a release-type printing head having excellent printing characteristics and capable of high-speed printing, by providing a first fulcrum for deflecting a leaf spring by a magnetix flux of a permanent magnet and a second fulcrum for adjusting an impact force of the leaf spring. CONSTITUTION:When a coil 5 around a core 3 is excited and an armature 11 is released from attraction, a wire 13 collides against a platen 20. By an impact force Fimp generated at this moment, a moment Mimp around an impact center G in the armature 11 is generated, as shown in Fig. (b), and the armature 11 tends to rotate about the impact center G. At this moment, a leaf spring 10 is restrained from moving upward, by a pressing force fsb exerted by an auxiliary spring 15 (second fulcrum). A downward reaction of the leaf spring 10 generated subsequently is restrained, this time, by a protrusion 9a (first fulcrum). Namely, the leaf spring 10 is restrained from motion on both the upper and lower sides by the impact center G, the auxiliary spring 15 and the protrusion 9a, so that the leaf spring 10 is restrained from being vibrated by the impact force Fimp.
JP23875087A 1987-09-25 1987-09-25 Printing head Pending JPS6482968A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23875087A JPS6482968A (en) 1987-09-25 1987-09-25 Printing head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23875087A JPS6482968A (en) 1987-09-25 1987-09-25 Printing head

Publications (1)

Publication Number Publication Date
JPS6482968A true JPS6482968A (en) 1989-03-28

Family

ID=17034701

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23875087A Pending JPS6482968A (en) 1987-09-25 1987-09-25 Printing head

Country Status (1)

Country Link
JP (1) JPS6482968A (en)

Similar Documents

Publication Publication Date Title
US3741113A (en) High energy print hammer unit with fast settle out
JPS56127462A (en) Wire print head
US4109776A (en) Apparatus for marking an information carrying medium
JPS623231Y2 (en)
CA1109906A (en) Magnetic latch device for a clapper type contactor
JPS5561485A (en) Printing head for wire printer
EP0365267A2 (en) A printing head for an impact dot printer
JPS5995164A (en) Print head for wire dot printers
EP0305137A2 (en) Wire-dot printing head
JPH0634109Y2 (en) Print head
JPS5738164A (en) Impact dot printing head
JPH0237559Y2 (en)
EP0269959B1 (en) Wire-type printing head
JPS6036462Y2 (en) printing device
JPS58177374A (en) print head
JPS6027662Y2 (en) Dot printer needle drive device
JPS60176777A (en) Electromagnet device for spring releasing type dot printer
JPH0679886A (en) Printing head for dot impact printer
JPS61222759A (en) Dot printer head
JPS591271A (en) recording device
JPS60180851A (en) Wire dot head
JPH02227262A (en) Printing wire drive device
JPS5644985A (en) Wire dot printer
JPS6140165A (en) Printing head
JPS632211A (en) Contact switch