US3417847A - Printing mechanism having a rim of rotating type levers - Google Patents

Printing mechanism having a rim of rotating type levers Download PDF

Info

Publication number
US3417847A
US3417847A US624527A US62452767A US3417847A US 3417847 A US3417847 A US 3417847A US 624527 A US624527 A US 624527A US 62452767 A US62452767 A US 62452767A US 3417847 A US3417847 A US 3417847A
Authority
US
United States
Prior art keywords
printing
type
rim
levers
type levers
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
US624527A
Other languages
English (en)
Inventor
Fleischer Manfred
Galaske Folker
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric Corp
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 International Standard Electric Corp filed Critical International Standard Electric Corp
Application granted granted Critical
Publication of US3417847A publication Critical patent/US3417847A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • B41J7/00—Type-selecting or type-actuating mechanisms
    • B41J7/36—Selecting arrangements applied to type-carriers rotating during impression
    • B41J7/40—Type movable on carrier for impression
    • 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
    • B41J1/00—Typewriters or selective printing mechanisms characterised by the mounting, arrangement or disposition of the types or dies
    • B41J1/22—Typewriters or selective printing mechanisms characterised by the mounting, arrangement or disposition of the types or dies with types or dies mounted on carriers rotatable for selection
    • B41J1/24—Typewriters or selective printing mechanisms characterised by the mounting, arrangement or disposition of the types or dies with types or dies mounted on carriers rotatable for selection the plane of the type or die face being perpendicular to the axis of rotation
    • B41J1/26—Carriers moving for impression

Definitions

  • ABSTRACT OF THE DISCLOSURE A printing mechanism in which the printing elements consist of a rim of type levers arranged radially in relation to their axis of rotation. The arrangement with respect to the printing plane being such that the extended center line of this axis intersects at the printing point in the printing plane.
  • the present invention relates to a printing mechanism for effecting the serial data recording in which the printing element consists of a rim of type levers arranged radially in relation to the axis of rotation.
  • the type levers are selected individually, to strike a printing base, which is a cylindrical body having a horizontally or vertically arranged shaft.
  • German Patent No. 423,548 have certain disadvantages and one is that the achievable printing speed is relatively low, because the rim of type levers must first be brought to a standstill prior to each printing operation.
  • this disadvantage is overcome by providing printing out of the movement which eliminates the problem of the high relative movement between the type and the recording medium as is done in the so'called on-the-fly printing.
  • this is accomplished by the rim of type levers rotating at a constant speed, and the axis of rotation of the rim of type levers is arranged, in relation to the printing base or support, so that the extended centre line of the axis (shaft) intersects with the vertical line on the printing point. This point of intersection lies in or approximately in the printing plane. This allows printing to occur each time on the centre line of the axis such that the angular variation of the struck type, with respect to the recording medium, has little effect for the time duration of the printing operation, and print is produced.
  • FIGS. 1 to 3 of the accompanying drawings in which:
  • FIG. 1 shows in a simplified representation, the printing mechanism in a side view taken in a partial sectional elevation
  • FIG. 2 shows a top view of selected portions of FIG. 1 to illustrate the cam plates (curved tracks);
  • FIG. 3 shows in a developmental view, the optionally controllable rotational tracks of the cam plate sensing elements associated with the type levers.
  • the individual type levers 5 are supported in a rim-shaped fashion in the radially arranged indentations of an annular type-lever bearing 3.
  • the type-lever support 6 resting on a ring console 6a, and a dome-shaped type lever guide 7 with the guide slots 7a.
  • the console 6a and the guide 7 are centrically led through the upper portion of the type lever bearing 3 and are supported on a ring shoulder 3a.
  • a (not shown) clamping device prevents the parts 6 and 7 from sliding off or shifting on their own.
  • each type lever 5 there is associated a transfer lever 8 which, by means of a gear mesh, are in a form-locking connection or engagement with one another.
  • Each of the transfer levers 8 is provided at its other end with a slide member So having a shuttle-type cross-section. These slide members radially project out of the circumference of the typelever bearing 3,and serve to bring the type levers, which are selected by stationary control means 12, into connection with the stationarily arranged cam plates (curved tracks) 9 and 10, into the impact (striking) position, and into position for returning the type levers to normal.
  • the type-lever bearing 3 is rigidly connected to a vertical axis of rotation 4.
  • this axis is subjected to a continuous drive, and is arranged so that the extension of the centre line Y of the axis coincides with the tangent line extending through the centre point of printing P at the circumference of the platen 1 or the paper track 2 which is led round it.
  • the selection of the type bar 5a into the printing position is effected with the aid of control means 12.
  • the respectively associated sliding member 8a is deflected by a mechanical or electrical deflector (separator) from the normal track of rotation, as indicated by the dot-and-dash line, onto the track indicated by the dash line. Due to this deflection, the respective sliding member 8a is brought onto the inclined portion of the striking cam plate 9 which causes the associated type lever 5 as shown in FIG. 1 to be brought into striking (printing) position.
  • the sliding member 8a due to the continuous rotation of the rim of type levers, enters the range of the reset cam plate 10 and returns to the normal non-printing position.
  • FIG. 2 shows the arrangement of the two cam plates 9 and 10, as well as the control means 12 with respect to the printing platen 1 and the printing point P.
  • the cam plates 9 and 10 with respect to the rotating rim of type levers 13 rotating in the direction indicated by the arrow, are mounted on stationary cam plate bearings 11 (FIG. 1) and are adjustible within certain limits for exactly defining the printing time position.
  • the striking cam plate 9 has a pitch which is almost constant throughout its entire length, so that very favourable acceleration values are obtained. Because of the efiective centrifugal forces, it is possible to eliminate spring mounting of type lever.
  • the position of the centre of gravity of both the type levers 5 and of the transfer levers 8 is selected so that the type levers, during rotation, are retained by centrifugal force in their position against the type-lever support 6. Moreover, the sliding members 8a, because of the moment of inertia occurring during the printing and the resetting movement, reliable adherence to the cam plates is assured.
  • any conventional ink ribbon may be used or, due to the rotation of the rim of type levers 13, a conventional type of ink roller may be utilized so that the types are inked While passing.
  • a printing wheel with a vertically standing axis of rotation or a printing bar having a plane surface, as is customary in strip chart recorders, as the printing base. These are then arranged in a similar way as described hereinbefore, with respect to the centre line of the axis of rotation 4.
  • the type-lever bearing 3 is connected in a form-locking manner to the axis of rotation 4 via a Cardan-joint-like intermediate member.
  • a print mechanism comprising:
  • a printing element including a rim of type levers carrying type heads and rotating about an axis at a constant speed;
  • each of said type levers being arranged radially in relation to the axis of rotation of said rim and being pivotally mounted to the rim at the end of the type lever which is normally closest said axis of rotation, said axis of rotation passing through said printing point;
  • the type head on a selected type lever being arranged to move toward said axis of rotation during its movement from a normal rest position to said printing point;
  • a mechanism according to claim 1, wherein said means for supporting a print receiving member is a platen, said axis of rotation is vertical, and said rim of type levers rotates below said platen and horizontally around the vertical axis of rotation.
  • a mechanism according to claim 2 including stationary guide means, said guide means causing said rim of type levers to assume a position inclined towards the printing point, and a shaft at the axis of rotation, said shaft being connected in a form-locking manner to each type of lever of said rim of type levers by means of a pivotly mounted transfer lever.
  • each type lever of said rim of type levers is in a form-locking connection with a transfer lever, said transfer lever including on one end a sliding member adapted to engage a pair of stationary supported cam plates, said cam plates arranged within the range of the rotational track of said sliding members, such that the selected type levers are brought into the printing position by one of said cam plates and returned to the normal position by the other of said cam plates.

Landscapes

  • Common Mechanisms (AREA)
  • Character Spaces And Line Spaces In Printers (AREA)
US624527A 1966-04-07 1967-03-20 Printing mechanism having a rim of rotating type levers Expired - Lifetime US3417847A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEST025216 1966-04-07

Publications (1)

Publication Number Publication Date
US3417847A true US3417847A (en) 1968-12-24

Family

ID=7460450

Family Applications (1)

Application Number Title Priority Date Filing Date
US624527A Expired - Lifetime US3417847A (en) 1966-04-07 1967-03-20 Printing mechanism having a rim of rotating type levers

Country Status (8)

Country Link
US (1) US3417847A (th)
BE (1) BE696675A (th)
CH (1) CH461855A (th)
DE (1) DE1270593B (th)
DK (1) DK113113B (th)
FR (1) FR1517579A (th)
GB (1) GB1140286A (th)
NL (1) NL153127B (th)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3556277A (en) * 1966-04-07 1971-01-19 Int Standard Electric Corp Switchpoint-type deflecting device
US3727741A (en) * 1966-04-07 1973-04-17 Int Standard Electric Corp Printing mechanism having a rim of rotating typelevers
US3768621A (en) * 1970-04-13 1973-10-30 Int Standard Electric Corp Printing mechanism for serial data recording
US3770094A (en) * 1969-05-27 1973-11-06 Int Standard Electric Corp Printing apparatus utilizing magnetic selection of type levers from a continuously rotating magazine
US3853211A (en) * 1969-04-24 1974-12-10 Int Standard Electric Corp Type lever actuation arrangement in serial printers having rotating type lever magazines

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US304463A (en) * 1884-09-02 sheehy
US871145A (en) * 1901-11-20 1907-11-19 American Typographic Corp Mechanism for producing character impressions.
US1864088A (en) * 1927-02-23 1932-06-21 Teletype Corp Selecting mechanism
US2127507A (en) * 1935-01-29 1938-08-23 Burnell Lab Company Inc Printing instrumentality for typewriting machines
US2139700A (en) * 1934-01-27 1938-12-13 Harry W Slavin Typewriter action
US2369433A (en) * 1942-07-21 1945-02-13 Ibm Printing machine
US2547046A (en) * 1946-05-24 1951-04-03 Creed & Co Ltd Type-wheel construction for printing telegraph receivers
US3289805A (en) * 1964-11-27 1966-12-06 Scm Corp Typewriter having typelevers mounted on a rotating member

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB164370A (en) * 1919-08-06 1921-06-16 Creed & Co Ltd Improvements in or relating to printing apparatus, suitable for reproducing in ordinary printed characters telegraphic messages
AT134854B (de) * 1932-01-21 1933-10-10 Creed & Co Ltd Telegraphenempfänger für Blattdruck.
DE632323C (de) * 1932-04-02 1936-07-06 Siemens & Halske Akt Ges Druckvorrichtung fuer Typendruckapparate, deren Druckvorrichtung aus einem rotierenden und verschiebbaren Typenhebelkorb besteht

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US304463A (en) * 1884-09-02 sheehy
US871145A (en) * 1901-11-20 1907-11-19 American Typographic Corp Mechanism for producing character impressions.
US1864088A (en) * 1927-02-23 1932-06-21 Teletype Corp Selecting mechanism
US2139700A (en) * 1934-01-27 1938-12-13 Harry W Slavin Typewriter action
US2127507A (en) * 1935-01-29 1938-08-23 Burnell Lab Company Inc Printing instrumentality for typewriting machines
US2369433A (en) * 1942-07-21 1945-02-13 Ibm Printing machine
US2547046A (en) * 1946-05-24 1951-04-03 Creed & Co Ltd Type-wheel construction for printing telegraph receivers
US3289805A (en) * 1964-11-27 1966-12-06 Scm Corp Typewriter having typelevers mounted on a rotating member

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3556277A (en) * 1966-04-07 1971-01-19 Int Standard Electric Corp Switchpoint-type deflecting device
US3727741A (en) * 1966-04-07 1973-04-17 Int Standard Electric Corp Printing mechanism having a rim of rotating typelevers
US3853211A (en) * 1969-04-24 1974-12-10 Int Standard Electric Corp Type lever actuation arrangement in serial printers having rotating type lever magazines
US3770094A (en) * 1969-05-27 1973-11-06 Int Standard Electric Corp Printing apparatus utilizing magnetic selection of type levers from a continuously rotating magazine
US3768621A (en) * 1970-04-13 1973-10-30 Int Standard Electric Corp Printing mechanism for serial data recording

Also Published As

Publication number Publication date
NL6704818A (th) 1967-10-09
BE696675A (th) 1967-10-06
GB1140286A (en) 1969-01-15
CH461855A (de) 1968-08-31
DK113113B (da) 1969-02-17
NL153127B (nl) 1977-05-16
FR1517579A (fr) 1968-03-15
DE1270593B (de) 1968-06-20

Similar Documents

Publication Publication Date Title
US2236663A (en) Type wheel teletypewriter
US3168182A (en) Type wheel shifting and impacting means in high speed printers
US3356199A (en) Printer having type disk rotatable in a plane parallel to the printing line
US4106611A (en) Serial printing apparatus
US3442365A (en) Font wheel aligning device
US3417847A (en) Printing mechanism having a rim of rotating type levers
US2951439A (en) Printing unit for a high speed printer
US3326346A (en) Type drum printer with hammer mounted inside of and coaxial with drum
US3797387A (en) High speed printer
US3805941A (en) Ballistic print hammer and type-bearing element combination for on-the-fly printer
US3773161A (en) High speed serial printer with plural hammers
US3901371A (en) Print actuator arrangement and encoder
US3424291A (en) Carriage drive for high-speed printer
US4335970A (en) Type wheel for serial printing apparatus
US3420350A (en) Type head driving means employing flexible belt
US2369433A (en) Printing machine
US3924726A (en) Typehead support for a single element printer
US3921518A (en) High speed printer
US3750794A (en) High speed print drum with traveling print hammer
US4069907A (en) High speed printer having spokes with a plurality of sections connected together at an angle greater than zero
US3896919A (en) Double band type carrier
US3807542A (en) Bounce suppressing mechanism
US2864482A (en) Pageprinter
US2771025A (en) Print impression mechanism
US3643596A (en) High-speed in-line printer