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公开(公告)号：FI753611A
公开(公告)日：1976-06-24
申请号：FI753611
申请日：1975-12-19
Applicant: IBM
Inventor： ABELL JR WILLIAM ABERTUS , FIELD THOMAS RAY , HAUS RALPH ANTHONY , SHAKIB IRAJ DAVID
Abstract: Disclosed is a mechanism for shifting the rack of a selection mechanism for a single element printer from one position to another in timed relationship to the translation of a barrel cam which provides the necessary mechanical input to control the amount of rotation of the typehead. The control of the rack shift mechanism is a cam arrangement operated in timed relationship with the translating barrel cam to provide for the shifting of the rack at the beginning of each print cycle, if necessary, and the retaining of the rack in its shifted position at the completion of the cycle, thereby eliminating the necessity to provide for the time required to shift the rack back to its home position at the end of the cycle. The elimination of the restore operation of the rack provides more time during the cycle to operate the selection mechanism and accomplish printing or conversely provides for a smaller amount of time being required for the necessary functions thereby providing the capability of operating the remainder of the mechanism at a faster rate.
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公开(公告)号：DE3475049D1
公开(公告)日：1988-12-15
申请号：DE3475049
申请日：1984-08-01
Applicant: IBM
Inventor： FIELD THOMAS RAY , HUGUES FRANCK MARION , SHAKIB IRAJ DAVID , VITEK EDWARD JOHN
Abstract: A print mechanism is described which has a constant current driven solenoid (22) acting against an arch-shaped hammer (10) to power the hammer (10) through an arc of powered flight followed by an arc of free flight. The solenoid/hammer engagement point (24) removes the solenoid to a position which does not obstruct print line visibility and the hammer (10) rest position is withdrawn to improve print line visibility.
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公开(公告)号：BR8107760A
公开(公告)日：1982-08-31
申请号：BR8107760
申请日：1981-11-27
Applicant: IBM
Inventor： MOTT WILLIAM EDWARD , SHAKIB IRAJ DAVID
Abstract: A replaceable font module (8) for a matrix printer includes an interrogable storage device (12) containing information representing graphic patterns and is connected to cooperate with a corresponding receptacle (100). The module (8) and receptacle (100) are configured to allow insertion without intense operator attention by virtue of a camming surface (48) on the module that cooperates with reference edge (154) of receptacle (100) to provide an undulating but positive latching motion in response to a simple operator insertion motion. As a part of the latching motion, a wiping action of spring contact (134) along contact pad (22) to assure a high quality contact.
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公开(公告)号：AU7737281A
公开(公告)日：1982-07-08
申请号：AU7737281
申请日：1981-11-11
Applicant: IBM
Inventor： MOTT WILLIAM EDWARD , SHAKIB IRAJ DAVID
Abstract: A replaceable font module (8) for a matrix printer includes an interrogable storage device (12) containing information representing graphic patterns and is connected to cooperate with a corresponding receptacle (100). The module (8) and receptacle (100) are configured to allow insertion without intense operator attention by virtue of a camming surface (48) on the module that cooperates with reference edge (154) of receptacle (100) to provide an undulating but positive latching motion in response to a simple operator insertion motion. As a part of the latching motion, a wiping action of spring contact (134) along contact pad (22) to assure a high quality contact.
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公开(公告)号：AU6976174A
公开(公告)日：1975-12-04
申请号：AU6976174
申请日：1974-06-04
Applicant: IBM
Inventor： SHAKIB IRAJ DAVID
Abstract: A carrier for a printer, having a single type element, is disclosed. The selection apparatus contained within the carrier is one whereby only a rotary power force plus control signals need be introduced into the carrier. The selection apparatus is comprised of barrel cams having a plurality of channels formed into the periphery of the barrel cams to cause lateral displacement thereof on their drive shaft. The lateral displacement of the barrel cams is converted into a linear motion which is in turn transmitted and converted into rotary motion to position the type element about its rotate and tilt axes. The controls for transmitting signals to the carrier are pneumatic and the pneumatic impulses received by the carrier logic block and actuator blocks activate mechanical latches to insert selector pins into the grooves of the barrel cams. A dual rack and single pinion arrangement is disclosed to convert the linear motion to rotary motion of the type element.
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Patent Agency Ranking
公开(公告)号：DE3275282D1
公开(公告)日：1987-03-05
申请号：DE3275282
申请日：1982-11-12
Applicant: IBM
Inventor： SHAKIB IRAJ DAVID , YOSMALI KRIKOR
IPC: B41J13/02 , B41J13/036 , B41J13/048 , B41J13/16 , B65H5/06
Abstract: A paper feed roll assembly for a printer or typewriter having a platen is described. The assembly is fabricated in such a way as to allow simple insertion into the printer or typewriter and the retention of the assembly in a proper position within the typewriter by the engagement of hooks (50) appended to the paper deflector (42, 54) with a paper release bail. Movement of paper release bail (14, 18) will compress a spring (28) which engages roll axle supports (20) and fixed rail (10), allowing the paper deflector (42, 54) and feed rolls (38) to with withdrawn from the periphery of the platen. The device allows automated assembly of the paper feed roll assembly into a machine and, in addition, provides complete self-alignment capability for the rolls (38) with respect to the periphery of the platen.
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公开(公告)号：DE3173732D1
公开(公告)日：1986-03-20
申请号：DE3173732
申请日：1981-10-20
Applicant: IBM
Inventor： MOTT WILLIAM EDWARD , SHAKIB IRAJ DAVID
Abstract: A replaceable font module (8) for a matrix printer includes an interrogable storage device (12) containing information representing graphic patterns and is connected to cooperate with a corresponding receptacle (100). The module (8) and receptacle (100) are configured to allow insertion without intense operator attention by virtue of a camming surface (48) on the module that cooperates with reference edge (154) of receptacle (100) to provide an undulating but positive latching motion in response to a simple operator insertion motion. As a part of the latching motion, a wiping action of spring contact (134) along contact pad (22) to assure a high quality contact.
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公开(公告)号：DK148877B
公开(公告)日：1985-11-04
申请号：DK578075
申请日：1975-12-18
Applicant: IBM
Inventor： ABELL JR WILLIAM ABERTUS , FIELD THOMAS RAY , HAUS RALPH ANTHONY , SHAKIB IRAJ DAVID
Abstract: Disclosed is a mechanism for shifting the rack of a selection mechanism for a single element printer from one position to another in timed relationship to the translation of a barrel cam which provides the necessary mechanical input to control the amount of rotation of the typehead. The control of the rack shift mechanism is a cam arrangement operated in timed relationship with the translating barrel cam to provide for the shifting of the rack at the beginning of each print cycle, if necessary, and the retaining of the rack in its shifted position at the completion of the cycle, thereby eliminating the necessity to provide for the time required to shift the rack back to its home position at the end of the cycle. The elimination of the restore operation of the rack provides more time during the cycle to operate the selection mechanism and accomplish printing or conversely provides for a smaller amount of time being required for the necessary functions thereby providing the capability of operating the remainder of the mechanism at a faster rate.
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公开(公告)号：DE3172267D1
公开(公告)日：1985-10-17
申请号：DE3172267
申请日：1981-11-25
Applicant: IBM
Inventor： SHAKIB IRAJ DAVID
Abstract: A powered gear driven paper insert and line feed mechanism capable of rotating a platen (10) through spacing increments and which is both power operated and disconnectable for manual operation, is disclosed. The platen (10) of the typewriter or the like may be manually rotated using platen knob (118) or may be electronically rotated by energizing a control magnet (110), thus engaging a dog clutch assembly (44, 74; 48, 76) to connect a drive motor (130) to the platen (110). The clutch assembly (44, 74; 48, 76) is such that two separate dog clutches are operable to disconnect the platen (10) and gear train (56, 92, 94. 96, 98, 14) from the overall clutch apparatus and also to disconnect the drive motor belt (32) and other related hardware which is driven by the drive motor (30) and belt (32).
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公开(公告)号：BR8206922A
公开(公告)日：1983-10-04
申请号：BR8206922
申请日：1982-11-30
Applicant: IBM
Inventor： SHAKIB IRAJ DAVID , YOSMALI KRIKOR
IPC: B41J13/02 , B41J13/036 , B41J13/048 , B41J13/16 , B65H5/06
Abstract: A paper feed roll assembly for a printer or typewriter having a platen is described. The assembly is fabricated in such a way as to allow simple insertion into the printer or typewriter and the retention of the assembly in a proper position within the typewriter by the engagement of hooks (50) appended to the paper deflector (42, 54) with a paper release bail. Movement of paper release bail (14, 18) will compress a spring (28) which engages roll axle supports (20) and fixed rail (10), allowing the paper deflector (42, 54) and feed rolls (38) to with withdrawn from the periphery of the platen. The device allows automated assembly of the paper feed roll assembly into a machine and, in addition, provides complete self-alignment capability for the rolls (38) with respect to the periphery of the platen.
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