US3814015A - Printing machine with a roller platen releasing device - Google Patents

Printing machine with a roller platen releasing device Download PDF

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Publication number
US3814015A
US3814015A US00230903A US23090372A US3814015A US 3814015 A US3814015 A US 3814015A US 00230903 A US00230903 A US 00230903A US 23090372 A US23090372 A US 23090372A US 3814015 A US3814015 A US 3814015A
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US
United States
Prior art keywords
printing
frame
roller platen
carriage
releasing
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.)
Expired - Lifetime
Application number
US00230903A
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English (en)
Inventor
Y Ozaki
F Mishima
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.)
Janome Corp
Original Assignee
Janome Sewing Machine Co 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 Janome Sewing Machine Co Ltd filed Critical Janome Sewing Machine Co Ltd
Application granted granted Critical
Publication of US3814015A publication Critical patent/US3814015A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41L—APPARATUS OR DEVICES FOR MANIFOLDING, DUPLICATING OR PRINTING FOR OFFICE OR OTHER COMMERCIAL PURPOSES; ADDRESSING MACHINES OR LIKE SERIES-PRINTING MACHINES
    • B41L45/00—Kinds or types of addressing machines or of like series-printing machines
    • B41L45/02—Kinds or types of addressing machines or of like series-printing machines using printing plates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41L—APPARATUS OR DEVICES FOR MANIFOLDING, DUPLICATING OR PRINTING FOR OFFICE OR OTHER COMMERCIAL PURPOSES; ADDRESSING MACHINES OR LIKE SERIES-PRINTING MACHINES
    • B41L19/00—Duplicating or printing apparatus or machines for office or other commercial purposes, of special types or for particular purposes and not otherwise provided for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41L—APPARATUS OR DEVICES FOR MANIFOLDING, DUPLICATING OR PRINTING FOR OFFICE OR OTHER COMMERCIAL PURPOSES; ADDRESSING MACHINES OR LIKE SERIES-PRINTING MACHINES
    • B41L47/00—Details of addressographs or like series-printing machines
    • B41L47/02—Applications of printing surfaces in addressing machines or like series-printing machines
    • B41L47/04—Applications of printing surfaces in addressing machines or like series-printing machines of flat or curved plates for relief printing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41L—APPARATUS OR DEVICES FOR MANIFOLDING, DUPLICATING OR PRINTING FOR OFFICE OR OTHER COMMERCIAL PURPOSES; ADDRESSING MACHINES OR LIKE SERIES-PRINTING MACHINES
    • B41L47/00—Details of addressographs or like series-printing machines
    • B41L47/14—Devices or arrangements for storing or handling plates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41L—APPARATUS OR DEVICES FOR MANIFOLDING, DUPLICATING OR PRINTING FOR OFFICE OR OTHER COMMERCIAL PURPOSES; ADDRESSING MACHINES OR LIKE SERIES-PRINTING MACHINES
    • B41L47/00—Details of addressographs or like series-printing machines
    • B41L47/14—Devices or arrangements for storing or handling plates
    • B41L47/16—Magazines

Definitions

  • the invention relates to printing machines and more particularly relates to a roller platen releasing device for printing machines.
  • a printing machine having a carriage mounted on the printing bed for transverse movement over type characters and a material to be imprinted such as a sales slip provided on the printing bed
  • Another object of the invention is to provide a roller platen support which is adjustable to adjust the printing pressure of the roller platen in accordance with the thickness of the material to be printed.
  • roller platen In order to avoid a reprinting operation of the machine during the return strokeof the carriage with the roller platen, it has been proposed that the roller platen is to be pressed against the printing bed during the movement of the carriage in one direction transversely of the printing bed, and that the roller platen is to be held in a position spaced from the printing bedduring the returning movement of the carriage in the opposite direction. But the conventional roller platen releasing devices are not suited for precise operations.
  • the roller platen supported on the carriage is held arrested in two restricted positions for printing and non-printing by means of a spring biased holding lever.
  • the roller platen is turned to printing and inopera tive positions against the action of the holding lever by means of a releasing lever which is actuated during each cycle of transverse movements of the carriage and roller platen over the printing bed.
  • the present invention uses an eccentric shaft which turnably supports a swingable frame which in turn rotatably supports the roller platen, and the eccentric shaft is adjustably mounted on the carriage. According to the present invention, by adjusting the eccentricity of the eccentric shaft with respect to the swingable frame, the position of the roller platen is appropriately adjusted relative to the printing bed. Thus the printing pressure of the roller platen is variably changed in accordance with the material to be printed. In this invention, such an adjustment of the rol ler platen will be easily accomplished.
  • FIG. I shows a printing machine embodying a roller platen releasing device of the present invention.
  • FIG. 2 shows a sectional elevation of the carriage of the printing machine taken along the line II II in FIG.
  • FIG. 3 shows a sectional view taken along the line I III in FIG. 2 and shows the roller platen in a printing position.
  • FIG. 4 shows the same sectional view as the view in FIG. 3, but shows the roller platen in a non-printing retracted position.
  • FIG. 5 shows a sectional view taken along the line V V in FIG. 2.
  • FIG. 6 shows an exploded perspective view of a preferred embodiment of the present invention.
  • a printing bed 1 is at both ends thereof provided with a pair of end plates 10,10 which are each formed with an outwardly bent horizontal portion 16 at the top thereof and an inwardly bent horizontal portion 17 as a foot at the lower part thereof.
  • On the printing bed I there are provided a plurality of type wheels 18 for representing dates or sales accounts.
  • the type wheels have type characters formed on the periphery thereof and are arranged in a stack on the underside of the printing bed. Each type wheel has a part exposed above the printing bed I projecting from an opening I I formed in the printing bed.
  • positioning pieces 12,12 and 13,13 are provided in a spaced relation.
  • These positioning pieces are adapted to position a credit card and a material to be printed such as a sales slip (not shown) in a predetermined position on the printing bed 1.
  • Tipping actuating blocks 100,10011 are fixed on the printing bed, which are, as will be described later in detail, adapted to actuate a releasing lever for shifting the roller platen.
  • a carriage 29 is mounted on the printing bed 1 for transverse movement in a printing stroke and a return stroke between the end plates 10,10.
  • the device of the present invention is accommodated in the carriage 29 and comprises mainly a main frame 21, a supporting frame 3, a swingable roller platen frame 4 on an eccentric shaft 5, a supporting plate 6, a connecting plate 7, a releasing lever 9, a holding lever 60 and a roller platen 8.
  • the carriage 29 has a cover 28 of U-shape in the cross section to cover the U-shaped main frame 2
  • wheel rollers 23 and 24 are rotatably mounted .by means of shafts 25 and 26 respectively.
  • the rollers 23 are in engagement with the upper faces along the edges of the printing bed I while the rollers 24 are in engagement with the lower faces along the edges of the printing bed so that the carriage 29 may be moved on the printing bed transversely thereof.
  • the supporting U-shape frame 3 is fixedly attached to the main carriage frame 2 by means of fastening screws 22,22 with washers 21,21 being inserted between the screws and the upper transverse wall of the main frame 2 and placed in the depressions 20,20 in the transverse wall.
  • the eccentric shaft 5 is fixedly supported on the supporting frame 3 between the depending leg walls thereof.
  • the reduced portion 51 of the eccenric shaft is eccentric to the central axis of the shaft and fitted into a bearing hole in the depending wall 34 of the supporting frame 3 while the reduced portion 52 is concentric with the central axis of the shaft 5 but fitted into an eccentric ring 31 which is in turn fixedly fitted in the boss on the opposite depending wall of the supporting frame 3 by means of a screw 32.
  • the roller platen frame 4 is swingably supported within the supporting frame 3 on the eccentric shaft 5 which passes through the aligned holes 47,48 respectively formed in the upper parts of the depending walls of the swingable frame 4.
  • the roller platen 8 which is made of plastic or other known material, is rotatably supported by frame 4 on a transverse shaft which is at both ends thereof fitted into the aligned holes formed in the lower part of the oppositely depending walls of the swingable frame 4.
  • one end of the roller platen 8 is supported by a support shaft 46 which is fitted into the axial bore of the roller platen 8.
  • the support shaft 46 is supported on a support piece 44 adjustably mounted by means ofa screw on one depending wall of the swingable frame 4.
  • the angular movement of frame 4 in one direction is restricted by a vertical wall 2 provided between the opposite depending walls ofthe main frame 2, on which abut the projections 4',4' respectively formed at the lower ends of the opposite depending walls of frame 4 when the swingable frame 4 is swung on one direction around the eccentric shaft 5 to a printing position in which the central axis of the roller platen 8 is, as shown in H6. 3, located at a point in the one direction just passed over the vertical plane Y Y from the axis of the shaft 5 to the printing bed 1.
  • the eccentric shaft 5 is prevented from axially shifting by the eccentric ring 31 which is at one end thereof in contact with the stepped shoulder of the eccentric shaft 5 and also by of a collar 41 which is fixedly secured on the opposite end portion of the eccentric shaft 5 by screw 42 and is in contact with the inner face of theopposite depending wall of the swingable frame 4.
  • a holding plate 6 is at the upper part thereof mounted on the extension of the reduced portion 51 of the eccentric shaft 5 at one end of the supporting shaft 3, and a holding lever is turnably mounted on the lower end part of the holding plate 6 by means of a pin 61.
  • a spring 62 is at one end hooked into a notch 64 at the top edge of the holding plate 6 and is at the other end anchored in the holding lever 60 to bias the holding lever in upward, see FIG. 5.
  • the holding lever 60 is at the upper surface thereof provided with a depressed engaging face 60 at the intermediate partthereof and has a sloped depressed engaging face 63 at the free end part thereof.
  • the engaging faces 60,63 of the holding lever 60 are adapted to be in engagement with the free follower part 43a of an arresting pin 43 which also turnably supports the releasing lever 9 on the lower part of one depending wall of roller platen frame 4.
  • the releasing lever 9 is at the top thereof provided with an inclined contacting surface or edge 90 and has a lower arm portion 91 which is adapted to engage the fixed actuating blocks 100,100a on the printing bed 1 as shown in FlGS. 3, 4 and 5 during the transverse movement of the carriage 29 over the printing bed 1.
  • the connecting contact plate 7 is turnably mounted on the reduced portion 51 of the eccentric shaft 5.
  • the plate 7 is provided with an inclined contact face 72 at the lower end thereof.
  • Spring is at one end hooked into a hole 71 at the top part of the plate 7 and is at the other end anchored to a hole 4" in the lower part of the one depending wall of the swingable frame 4 to press the inclined contact edge 72 of plate 7 against the inclined contact face of the releasing lever 9.
  • the spring 70 is of a force stronger than the force of the spring 62 acting on the holding lever 60.
  • the resilient connecting means 7, 70 connect the releasing lever 9 with the roller platen frame 4.
  • the frame 4 can be swung by the shifting means 9, 91, 90, 72; 7, 70 to the opposite restricted positions against the cam action of holding lever 60 biased against follower projection 43a by spring 62, and is at the same time held arrested in the restricted positions by the action of the same spring 62, due to the contact engagement between the holding lever 60 and the extension 43a of the pin 43 on the swinging frame 4.
  • the reduced portion 52 of the eccentric shaft 5 has a slot 53 for a tool at the free end thereof, and the free end of the reduced portion 52 is located in alignment with openings 54 and 55 respectively provided in the depending walls of the main frame 2 and of the cover 28. Therefore, the operator can insert an instrument such as a screw driver through the openings 54in frame 2 and 55 in cover 28 and rotate the eccentric shaft 5 to adjust the same relative to the swingable frame 4, thereby to adjust the position of the roller platen 8 with respect to the printing bed 1 for variably changing the pressure of the roller platen on the material to be printed.
  • an instrument such as a screw driver
  • roller platen 8 Such an adjustment of the roller platen 8 will, according to the present invention, give no adverse effects to the normal cooperation between the releasing lever 9 and the fixed actuating blocks 100,100a on the printing bed 1, because such a cooperation is maintained by the tensioning action of spring 62.
  • the lower arm portion 91 of the releasing lever 9 engages the block on the printing bed 1 before the carriage arrives over the sales slip and turns the frame 4 with the roller platen 8 in one direction around the eccentric shaft 5 through the contact plate 7 and the spring 70 against the action of spring 62, which causes resilient engagement between the holding lever 61) and the extension 43a of the pin 43.
  • the swinging movement of frame 4 in this first direction is restricted by the vertical wall 2 of the main frame 2, which is contacted by the projections 4',4' provided respectively on the lower ends of the opposite depending walls of the swingable frame 4, and the roller platen 8 is held in a printing position closest to the printing bed 1 as shown in FIG. 3.
  • the swingable frame 4 is held in an arrested restricted position, since the extension 434 of the pin 43 is supported by the sloped depressed engaging face 63 of the holding lever 60 which is biased on by spring 62.
  • the roller platen 8 presses the sales slip (not shown) against the type characters on the printing bed 1 to print the same.
  • the lower arm portion 91 of the releasing lever 9 engages another tipping block 100a which is located at a position on the printing bed 1 where the carriage 29 has passed over the sales slip and beyond the end of the stack of type wheels 18.
  • the releasing lever 9 passes over the tipping block 100a in the same man ncr as it passes over the first tipping block 100.
  • the releasing lever 9 is now turned in the opposite direction around the pin 43 against the action of spring 70 and gets over the tipping block 100a.
  • the arm portion 91 is rotated so that face portion of edge 90 of releasing lever 9 presses against face portion 72" of contact face 72 of connecting contact plate 7, since in this position face portion 72" is located far away from the extension of the line connecting point 71 with shaft portion 51, connecting plate 7 is rotated about shaft portion 51 and the turning of members 7 and 9, with contact faces 90 and 72 sliding on each other, permits arm portion 91 to pass block 1110a during the return stroke of the carriage 29.
  • the retracted roller platen 8 will no more press the sales slip onto the printing bed 1.
  • the releasing lever 9 91 passes block in the same manner as block 1011a, and then the carriage 29 returns to the initial position as shown in FIG. 3 completing the printing cycle.
  • a printing machine with a roller platen releasing device comprising a printing bed, type means mounted on said printing bed; carriage means mounted on said printing bed for reciprocating movement over said type means in a printing stroke and in a return stroke; a roller platen frame mounted on said carriage means for angular movement, and a roller platen having a follower projection and mounted on said frame for movement therewith between a printing position cooperating with said type means and a retracted position for bassing said type means by; holding meansfor arresting said roller platen frame and said roller platen in said printing position during said printing stroke, and in said retracted position during said return stroke; shifting means including releasing means turnably mounted on said frame and having a contact face, connecting means mounted on said carriage means and having an other contact face slidingly abutting said contact face, and a spring connecting a portion of said connecting means with said frame; and two actuating blocks secured to said printing bed on opposite sides of said type means and located in the path of movement of said releasing means during said strokes of said carriage means so that said
  • a printing machine with a roller platen releasing device comprising a printing bed, type means mounted on said printing bed; carriage means mounted on said printing bed for reciprocating movement over said type means in a printing stroke and in a return stroke; a roller platen frame having a follower projection and mounted on said carriage means for angular movement, and a roller platen mounted on said frame for movement therewith between a printing position cooperating with said type means and a retracted position for passing said type means by; resilient holding means for yieldingly arresting said roller platen frame and said roller platen in said printing position during said printing stroke, and in said retracted position during said return stroke, shifting means including releasing means mounted on said frame, and resilient connecting means connecting said releasing means with said carriage so that turning of said releasing means in opposite directions causes turning of said frame between said printing and retracted positions; and two actuating blocks secured to said printing bed on opposite sides of said type means and located in the path of movement of said releasing means during said strokes of said carriage means so that said releasing means is turned in opposite
  • a printing machine with a roller platen releasing device comprising a printing bed, type means mounted on said printing bed; carriage means mounted on said printing bed for reciprocating movement over said type means in a printing stroke and in a return stroke; a roller platen frame mounted on said carriage means for angular movement, and a roller platen mounted on said frame for movement therewith between a printing position cooperating with said type means and a retracted position for passing said type means by; holding means for arresting said roller platen frame and said roller platen in said printing position during said printing stroke, and in said retracted position during said return stroke; shifting means including releasing means turnably mounted on said frame and having a contact face, connecting means mounted on said carriage means and having an other contact face slidingly abutting said contact face, and a spring connecting a portion of said connecting means with said frame; and two actuating blocks secured to said printing bed on opposite sides of said type means and located in the path of movement of said releasing means during said strokes of said carriage means so that said releasing means is turned in opposite directions
  • said releasing means includes a releasing lever having said contact face and an arm for engaging said actuating blocks
  • said connecting means includes a connecting lever having said other contact face, and wherein said portion of said connecting lever is located remote from said other contact face.
  • said carriage means includes an eccentric shaft means turnably supporting said roller platen frame, and in cluding an end portion projecting from said carriage and having means for engaging a tool so that said eccentric shaft means can be manually turned for adjusting the distance between said roller platen on said roller platen frame and said type means in said printing position.
  • said eccentric shaft means includes a main shaft portion, a first reduced end portion, eccentric to the axis of said main shaft portions and mounted in said carriage means, a second reduced end portion concentric to said axis, and being said projecting end portion and an eccentric ring for mounting said second reduced end portion on said carriage means.

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US00230903A 1971-02-24 1972-03-01 Printing machine with a roller platen releasing device Expired - Lifetime US3814015A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1971011211U JPS543767Y2 (enrdf_load_stackoverflow) 1971-02-24 1971-02-24

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US3814015A true US3814015A (en) 1974-06-04

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US00230903A Expired - Lifetime US3814015A (en) 1971-02-24 1972-03-01 Printing machine with a roller platen releasing device

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US (1) US3814015A (enrdf_load_stackoverflow)
JP (1) JPS543767Y2 (enrdf_load_stackoverflow)
CA (1) CA955792A (enrdf_load_stackoverflow)
DE (1) DE2208784B2 (enrdf_load_stackoverflow)
GB (1) GB1351892A (enrdf_load_stackoverflow)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3954056A (en) * 1975-04-09 1976-05-04 Control Data Corporation Platen positioning means for imprinters
US4014257A (en) * 1975-07-28 1977-03-29 Minnesota Mining And Manufacturing Company Apparatus for die cutting indicia on a multilayer tape
US4041863A (en) * 1975-07-18 1977-08-16 Vidac Corporation Precision hand label imprinter and dispenser
US4078491A (en) * 1976-01-26 1978-03-14 Schweers Karl D Portable credit card imprinter
US4651642A (en) * 1978-11-17 1987-03-24 National Business Systems Inc. Credit card imprinter with disabling means
US4704962A (en) * 1985-10-15 1987-11-10 Robert Healey Printing machine
US5296292A (en) * 1990-09-04 1994-03-22 W. L. Gore & Associates, Inc. Elongated cylindrical tensile article

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5031093U (enrdf_load_stackoverflow) * 1973-07-13 1975-04-07
GB2183547B (en) * 1985-11-18 1990-07-04 Security Imprinter Corp An imprinter for imprinting characters from a card-like character source member onto a sheet material document.

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1305778A (en) * 1919-06-03 Printing-machine
US3018725A (en) * 1960-02-10 1962-01-30 Addressograph Multigraph Printing machines
US3260199A (en) * 1964-08-28 1966-07-12 Farrington Business Mach Platen mechanism for printing machines
US3274931A (en) * 1964-06-26 1966-09-27 Farrington Business Mach Printing apparatus
US3388660A (en) * 1965-08-24 1968-06-18 Farrington Business Mach Printing machine having means for locking platen assembly from one position to another depending on direction of travel
US3410207A (en) * 1965-12-08 1968-11-12 Farrington Business Mach Pressure control means for traveling roller in bed and cylinder printing machines
US3446144A (en) * 1966-10-25 1969-05-27 Addressograph Multigraph Printing machines with form clamping means
US3538848A (en) * 1969-04-22 1970-11-10 Control Data Corp Latch means for a traveling roller platen on a swingable carriage
US3650209A (en) * 1969-11-17 1972-03-21 Cubic Corp Traveling cylinder imprinter with over center platen cylinder activating mechanism

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1305778A (en) * 1919-06-03 Printing-machine
US3018725A (en) * 1960-02-10 1962-01-30 Addressograph Multigraph Printing machines
US3274931A (en) * 1964-06-26 1966-09-27 Farrington Business Mach Printing apparatus
US3260199A (en) * 1964-08-28 1966-07-12 Farrington Business Mach Platen mechanism for printing machines
US3388660A (en) * 1965-08-24 1968-06-18 Farrington Business Mach Printing machine having means for locking platen assembly from one position to another depending on direction of travel
US3410207A (en) * 1965-12-08 1968-11-12 Farrington Business Mach Pressure control means for traveling roller in bed and cylinder printing machines
US3446144A (en) * 1966-10-25 1969-05-27 Addressograph Multigraph Printing machines with form clamping means
US3538848A (en) * 1969-04-22 1970-11-10 Control Data Corp Latch means for a traveling roller platen on a swingable carriage
US3650209A (en) * 1969-11-17 1972-03-21 Cubic Corp Traveling cylinder imprinter with over center platen cylinder activating mechanism

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3954056A (en) * 1975-04-09 1976-05-04 Control Data Corporation Platen positioning means for imprinters
US4041863A (en) * 1975-07-18 1977-08-16 Vidac Corporation Precision hand label imprinter and dispenser
US4014257A (en) * 1975-07-28 1977-03-29 Minnesota Mining And Manufacturing Company Apparatus for die cutting indicia on a multilayer tape
US4078491A (en) * 1976-01-26 1978-03-14 Schweers Karl D Portable credit card imprinter
US4651642A (en) * 1978-11-17 1987-03-24 National Business Systems Inc. Credit card imprinter with disabling means
US4704962A (en) * 1985-10-15 1987-11-10 Robert Healey Printing machine
US5296292A (en) * 1990-09-04 1994-03-22 W. L. Gore & Associates, Inc. Elongated cylindrical tensile article

Also Published As

Publication number Publication date
JPS478203U (enrdf_load_stackoverflow) 1972-09-30
DE2208784A1 (de) 1972-09-07
DE2208784C3 (enrdf_load_stackoverflow) 1981-02-05
GB1351892A (en) 1974-05-01
CA955792A (en) 1974-10-08
JPS543767Y2 (enrdf_load_stackoverflow) 1979-02-21
DE2208784B2 (de) 1980-05-08

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