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公开(公告)号：DE3668835D1
公开(公告)日：1990-03-15
申请号：DE3668835
申请日：1986-07-28
Applicant: IBM
Abstract: The present invention relates to an assembly of electromagnetic actuators (A, B, C, D, E) for the hammers of an impact printer arranged side by side and extending along a line. Each actuator comprises a first stator part (41) formed with at least one pole piece, a second stator part (42) formed with at least one pole piece and positioned relative to the first stator part so that the pole pieces are spaced apart so as to form a gap therebetween. A single coil (43) is associated with one of the stator parts. Each actuator also includes an armature member (44) formed with a body of non-magnetisable material, at least one armature element of magnetisable material and a hammer head (67). The armature member is supported between the stator parts so that the armature element is located adjacent to the gap. Energisation of the coil causes the generation of a flux which passes across the gap and through the armature element tending to move the armature element into the gap and to cause the hammer head to move into a print position,According to the invention the components of adjacent actuators are complementary in shape so that projecting components (43) of each actuator engage in recessed components (53) of the adjacent actuator whereby the overall length of the assembly along the line is less than the sum of the overall widths of the individual actuators.
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公开(公告)号：AU571095B2
公开(公告)日：1988-03-31
申请号：AU4427985
申请日：1985-06-28
Applicant: IBM
Inventor： THORNE WILLIAM DUNCAN
Abstract: A printer of the type including a platen, a bank of hammers extending in a straight line along and spaced from the platen and a continuous metal band of magnetizable material on which are mounted a plurality of print elements is provided with drive means for moving the band between the platen and the hammer bank and control means for controlling the movement of the band so that the print elements on the band move along the line of hammers. The band drive means includes a drive wheel located near one end of the hammer bank and means for forcing the band into close contact with the peripheral surface of the drive wheel. The means for forcing the band into close contact with the peripheral surface of the drive wheel can be a permanent magnet member located on the surface of the drive wheel. The band movement control means includes guide means for guiding the band so that it extends along the hammer bank and permanent magnet means adapted to force the band into close contact with the guide means. The guide means can be a fixed guide member located near the end of the hammer bank remote from the drive wheel and the permanent magnet means can be a permanent magnet member located on the surface of the guide member and adapted to attract the band to the guide member.
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公开(公告)号：DE3275519D1
公开(公告)日：1987-04-09
申请号：DE3275519
申请日：1982-11-23
Applicant: IBM
Inventor： THORNE WILLIAM DUNCAN
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Patent Agency Ranking
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公开(公告)号：DE3266961D1
公开(公告)日：1985-11-21
申请号：DE3266961
申请日：1982-11-23
Applicant: IBM
Inventor： THORNE WILLIAM DUNCAN
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公开(公告)号：FI61428C
公开(公告)日：1982-08-10
申请号：FI751897
申请日：1975-06-26
Applicant: IBM
Abstract: A ribbon cartridge for an endless loop inked ribbon suitable for use with a wire matrix printer, for example, is disclosed in which the cartridge includes elongated guide members to confine the path of the loop of ribbon outside of the cartridge to a predetermined path and to allow for insertion of the cartridge into a using machine without the necessity of threading inky ribbon through fixed guides on the machinery.
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公开(公告)号：NO143262C
公开(公告)日：1981-01-07
申请号：NO752367
申请日：1975-06-30
Applicant: IBM
Abstract: A ribbon cartridge for an endless loop inked ribbon suitable for use with a wire matrix printer, for example, is disclosed in which the cartridge includes elongated guide members to confine the path of the loop of ribbon outside of the cartridge to a predetermined path and to allow for insertion of the cartridge into a using machine without the necessity of threading inky ribbon through fixed guides on the machinery.
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公开(公告)号：AU8068075A
公开(公告)日：1976-11-04
申请号：AU8068075
申请日：1975-04-30
Applicant: IBM
Abstract: A ribbon cartridge for an endless loop inked ribbon suitable for use with a wire matrix printer, for example, is disclosed in which the cartridge includes elongated guide members to confine the path of the loop of ribbon outside of the cartridge to a predetermined path and to allow for insertion of the cartridge into a using machine without the necessity of threading inky ribbon through fixed guides on the machinery.
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