US3776130A - Locking arrangement for manually set printing wheels - Google Patents

Locking arrangement for manually set printing wheels Download PDF

Info

Publication number
US3776130A
US3776130A US00295496A US3776130DA US3776130A US 3776130 A US3776130 A US 3776130A US 00295496 A US00295496 A US 00295496A US 3776130D A US3776130D A US 3776130DA US 3776130 A US3776130 A US 3776130A
Authority
US
United States
Prior art keywords
locking
printing
arresting
pawls
carriage
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
US00295496A
Other languages
English (en)
Inventor
Y Tamiya
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 US3776130A publication Critical patent/US3776130A/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
    • B41J5/00—Devices or arrangements for controlling character selection
    • B41J5/02—Character or syllable selected by setting an index
    • B41J5/04—Single-character selection

Definitions

  • ABSTRACT A set of printing wheels with circumferentially spaced types and arresting recesses, can be set to digital printing positions by manual setting means.
  • An axial row of spring biassed arresting pawls engages a row of the arresting recesses, and yield resiliently while the printingwheels are turned during setting to a selected number.
  • the pawls have locking recesses cooperating with a locking bar extending at right angles to the direction of movement of the pawls to the'arresting position.
  • a carriage with a platen roller is manually moved out of an end position along a path over the printing wheels.
  • the carriage is operatively connected with the locking bar so that the locking bar is ineffective in the end position of the carriage while the printing wheels are 'set, and engages the locking recesses in the pawls when the carriage moves out of the end position so that the wheels cannot be displaced by the platen roller during printing.
  • Another object of the invention is to improve airrangements according to the prior art serving asirnilar purpose.
  • Another object ofthe invention ds to*lck arresting:
  • thepresent invention provides a locking arrangement for locking arresting pawls and thereby printingwheels by means of a lockingbar which is ineffectivezin one end position oftthecarriage,
  • FIG. 1 is a perspective view of aprintingrnachineto which the present invention is applied;
  • FIG. 2. is a fragmentary perspective vlew illustrating,-
  • FIG. 3 is a fragmentary side view, partially in section, illustrating the embodiment of FIG. 2; and:
  • FIG. 4 is a fragmentary bottom view of the embodiment of FIGS. 2and3.
  • a manual printer has a casing lrand supports-a car riage .2'having a rotary platen roller-'3 for movement along a path over the printing bed 4 which has a cutout 40, see 'alsorFIG.'-.3,'- through which a' segment shapedportion "of a set 55 of printing wheelsSprojects so that the'top. rowof types 5b is engaged bythe platen roller- 2 3.
  • Each printing wheel 5 is integral with a gearfi h'avin'g' arresting recesses 6a which respectively correspond to types 5b, and to angular printing positions of the printing wheels 5. All printing wheels and gears 5,.6 are mounted for free rotation; on a shaft 40 which is supported on the supporting frame means of the printer.
  • a cover plate 7 which has longitudinal slots 8 in which setting levers-.9 are guided so that rack bar portions 1 1 of the setting levers 9 mesh with the gear portions 6 of thetype wheels 5, respectively.
  • the setting levers 9 have head portions 10 on which buttons 10a are mounted after the assembly of the casing portion 7.
  • the rack portions 1 l are guided in a comb-shaped guide 12.
  • a set of arresting pawls 13 is arranged in a row and guided by guide members 20 for movement in radial direction into and out of the arresting recesses of the gear portions 6.
  • a guide rod 18 having ends mounted in'the frame of the machine, passes through a slot 14 in each arresting pawl 13 so that the arresting pawls can perform a slight angular movement for better fitting into the arresting recesses 6a into which they are biased by individual springs 19 located in blind bores 16 at the rear ends of the arresting pawls 13 whose front ends 15 are tapered to conform to the shape of the arresting recesses 6a; a
  • eachtooth of each gear 6 acts on the tapered end 15 of the respective pawl 13 to urge the respective pawl 13 out of the arresting recess 6a so that the pawls 13 yield against the actionof the small springs 19, and permit the setting of the printing wheels 5 to diflerent angular printing positions in'which difi'erent types 5b are located in an operative row on top of the type wheels 5.
  • Each arresting pawl 13 has a triangular locking recess 17, and when the arresting pawls 13 are in the arresting position fully engaging the arresting recesses 6a, all locking recesses 17 are aligned in an axial row.
  • A'bail 21 is mounted on a shaft 22 for angular movement, and has two arms 21;: between which a locking bar 23 extends directly below the" row of locking recesses 17.
  • a torsion spring 21b biasses bail 21 with looking bar 23 to an inoperative position in which locking bar 23 is not located in-the row of locking recesses 17.
  • An angular lever 24 is mounted on pivots 26 on the supporting frame 41 and has'one end 24a abutting the yoke portion of bail 21 and another end portion with apin 27 located in a fork-shaped portion 30 at one end of another angular lever 28 which is mounted for angular movement on a stationary shaft 29 secured to the machine frame.
  • Angular lever 28 is biased by a spring 32 in the direction of the arrow A so that the motion transmitting means 28, 24, 21 are biassed by the locking spring 32 to move to a position in which the locking bar 23 is in the locking position illustrated in chain lines in FIG. 3 in which locking bar 23 engages the slanted edges of the lockingrecesses 17 of pawls 13.
  • lever 28 is connected by a wire link 33 with a feeler lever 34 which is mounted on a supporting shaft 34a for angular movement.
  • the carriage 2 has on either side of the printing bed plate 4, a pair of rollers 35 engaging the top and bottom faces of the bed plate 4 so that the carriage 2 with the platen roller 3 can move along a path from the end position shown in FIG.
  • a roller 35 In the initial end position of carriage 2, a roller 35 is located in the region of the feeler end 34b, as best seen in FIG. 4, so that spring 32 cannot move feeler lever 34 to the position shown in broken lines.
  • the respective roller 35' moves to the position 35" shown in FIG. 4 in broken lines, and consequently permits feeler lever 34 to move to the broken line position due to the actionof spring 32.
  • feeler lever 34 and wire link 33 are part of the motion transmitting means which also include members 28, 24, and 21, spring 32 acts through the motion transmitting means on locking bar 23 so that locking bar 23 moves into the aligned row of locking recesses 17, completely looking all pawls 13 against movement out of the respective arresting recesses 6a.
  • the locking is particularly effective since the pawls are mounted on guide rails 20 and on guide shafts 18 for substantially radial movement in relation to the axis of the printing wheels 5, while the locking bar 23 extends in axial direction at right angles to the direction of movement of the arresting pawls 13.
  • the corresponding locking recess is also slightly displaced, but the locking bar 23 engaging the slanted walls of the respective locking recess 17, forces the pawl 13 to assume the correct arresting position, and the slanted edges of the front portion 15 of the respective arresting pawl 13 urge respective gear 6 and printing wheel 5 to the correct printing position.
  • a sheet is placed on the printing bed above the set 55 ofprinting wheels 5 and held by paper guides 1a shown in FIGS. 1 and 3.
  • the sheet not shown, is located between the projecting portion of the set 55 of printing wheels 5 and the plane in which the platen roller 3 moves during movement of the carriage 2.
  • feeler lever 34 is held in the solid line position shown in FIG. 4 so that the motion transmitting means 28, 24, 21 hold the locking bar 23 in the solid line position of FIG. 3 outside of the row of locking recesses 17, as shown in FIG. 3.
  • arresting pawls 13 are biassed only by springs 19 into the arresting position engaging the arresting recesses 6a.
  • Locking arrangement for manually set printing wheels comprising supporting means; carriage means including a platen roller and being supported on said. supporting means for movement with said platen roller along a path between two end positions; a set of printing wheel means mounted on said supporting means for independent angular movement about an axis between a plurality of angular printing positions, and having a plurality of types and a plurality of arresting recesses associated with said angular printing positions, respectively; a set of setting means for turning said printing wheel means to selected angular printing positions, respectively, so that an axial row of selected types is located in said path of said platen roller; a set of arresting pawls arranged in an axial row opposite an axial row of arresting recesses, said pawls being movable in a substantially radial direction to and from arresting positions located in said arresting recesses, respectively, and having locking recesses forming an axial row when said pawls are located in said arresting recesses in said arresting positions; arresting spring means for
  • Locking arrangement as claimed in claim 1 wherein said locking recesses have slanted edges so that when said locking bar enters a misaligned locking recess of a pawl which is not fully in said arresting position due to a wrong angular position of the respective printing wheel means, said locking recess is aligned by said locking bar with the locking recesses of the other pawls whereby the respective pawl is placed in said arresting position for holding said printing wheel means in the respective angular printing position.
  • Locking arrangement as claimed in claim 1 wherein said motion transmitting means include locking spring means for urging said motion transmitting means to hold said locking bar in said locking position, and feeler means biassed by said locking spring means to engage a portion of said carriage means only when said carriage means is in said one end position for bolding said locking bar in said inoperative position whereby when said carriage means moves out of said one end position and along said path, said portion releases said feeler means so that said locking spring means causes movement of said locking bar to said locking position.
  • Locking arrangement as claimed in claim 3 wherein said locking bar is moved by said motion transmitting means to said locking position in a direction transverse to said radial direction.
  • said carriage means includes a carriage on which said platen roller is mounted for rotation, and wherein said portion of said carriage meansis a roller rotatably mounted on said carriage and rolling along said path on said supporting means.
  • said motion transmitting means include a bail mounted for angular movement about a bail axis on said supporting means and having two arms located at the ends of said row of pawls, said locking bar being mounted on the ends of said arms; and wherein said feeler means includes a feeler lever mounted on said supporting means for angular movement and being biassed by said locking spring means to engage said car.- riage portion in said one end position of said carriage means.
  • each printing wheel means includes a printing wheel having circumferentially spaced types, and a gear po'rtionhaving teeth and said arresting recesses between said teeth.

Landscapes

  • Common Mechanisms (AREA)
US00295496A 1971-10-09 1972-10-06 Locking arrangement for manually set printing wheels Expired - Lifetime US3776130A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1971093153U JPS5020729Y2 (ja) 1971-10-09 1971-10-09

Publications (1)

Publication Number Publication Date
US3776130A true US3776130A (en) 1973-12-04

Family

ID=14074582

Family Applications (1)

Application Number Title Priority Date Filing Date
US00295496A Expired - Lifetime US3776130A (en) 1971-10-09 1972-10-06 Locking arrangement for manually set printing wheels

Country Status (2)

Country Link
US (1) US3776130A (ja)
JP (1) JPS5020729Y2 (ja)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3865026A (en) * 1973-07-23 1975-02-11 Dymo Industries Inc Imprinter
US3881411A (en) * 1973-02-16 1975-05-06 Janome Sewing Machine Co Ltd Type wheel arresting and blocking device
US3945316A (en) * 1974-01-17 1976-03-23 Dymo Industries, Inc. Portable transaction-log recorder
US3946665A (en) * 1974-06-28 1976-03-30 Addressograph-Multigraph Corporation Apparatus for positioning a rotatable indicia carrying member
DE2646204A1 (de) * 1975-10-13 1977-04-21 Pitney Bowes Ltd Druckwerk fuer eine frankiermaschine, einen scheckschreiber o.dgl.
US4050374A (en) * 1976-06-21 1977-09-27 Pitney-Bowes, Inc. Meter setting mechanism
US4256036A (en) * 1979-09-10 1981-03-17 Am International, Inc. Print wheel setting and control means in printing machines
US4287825A (en) * 1979-10-30 1981-09-08 Pitney Bowes Inc. Printing control system

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3138091A (en) * 1964-06-23 Printing machines
US3279369A (en) * 1964-12-21 1966-10-18 Farrington Business Mach Imprinter
US3322062A (en) * 1965-08-12 1967-05-30 Addressograph Multigraph Variable data print control and interlock means in printing machines
US3334582A (en) * 1965-08-12 1967-08-08 Addressograph Multigraph Reset signalling device for variable data printing machine
US3405634A (en) * 1966-09-12 1968-10-15 Addressograph Multigraph Settable wheel control means in bed and cylinder creating machines
US3494282A (en) * 1968-02-13 1970-02-10 Addressograph Multigraph Print wheel setting means and print control means in traveling roller bed and cylinder print machines

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3138091A (en) * 1964-06-23 Printing machines
US3279369A (en) * 1964-12-21 1966-10-18 Farrington Business Mach Imprinter
US3322062A (en) * 1965-08-12 1967-05-30 Addressograph Multigraph Variable data print control and interlock means in printing machines
US3334582A (en) * 1965-08-12 1967-08-08 Addressograph Multigraph Reset signalling device for variable data printing machine
US3405634A (en) * 1966-09-12 1968-10-15 Addressograph Multigraph Settable wheel control means in bed and cylinder creating machines
US3494282A (en) * 1968-02-13 1970-02-10 Addressograph Multigraph Print wheel setting means and print control means in traveling roller bed and cylinder print machines

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3881411A (en) * 1973-02-16 1975-05-06 Janome Sewing Machine Co Ltd Type wheel arresting and blocking device
US3865026A (en) * 1973-07-23 1975-02-11 Dymo Industries Inc Imprinter
US3945316A (en) * 1974-01-17 1976-03-23 Dymo Industries, Inc. Portable transaction-log recorder
US3946665A (en) * 1974-06-28 1976-03-30 Addressograph-Multigraph Corporation Apparatus for positioning a rotatable indicia carrying member
DE2646204A1 (de) * 1975-10-13 1977-04-21 Pitney Bowes Ltd Druckwerk fuer eine frankiermaschine, einen scheckschreiber o.dgl.
US4050374A (en) * 1976-06-21 1977-09-27 Pitney-Bowes, Inc. Meter setting mechanism
FR2355659A1 (fr) * 1976-06-21 1978-01-20 Pitney Bowes Inc Mecanisme de reglage de compteur pour machine a affranchir
US4256036A (en) * 1979-09-10 1981-03-17 Am International, Inc. Print wheel setting and control means in printing machines
US4287825A (en) * 1979-10-30 1981-09-08 Pitney Bowes Inc. Printing control system

Also Published As

Publication number Publication date
JPS4848703U (ja) 1973-06-26
JPS5020729Y2 (ja) 1975-06-23

Similar Documents

Publication Publication Date Title
US3256969A (en) High speed serial printing device
US3776130A (en) Locking arrangement for manually set printing wheels
US3881411A (en) Type wheel arresting and blocking device
US2165223A (en) Power-operated typewriter
US3397766A (en) Printer having plural hammers and a single hammer actuating means
US2981179A (en) Printer
US3432022A (en) Multiple-color printing structure for bookkeeping machines and the like
US2385036A (en) Typewriting machine
US2876280A (en) Type printing apparatus
US2728435A (en) Repeat operation mechanism for power driven typewriters or like machines
US2875686A (en) Cash registers
US2971625A (en) Repeat actuation arrangement for typewriters
US3467006A (en) Limited amount check writer
US1652091A (en) Cash register
US2512825A (en) Variable typewriter spacer
US3721186A (en) Rockable impression device for a printing machine
US2890301A (en) Mechanical device for the reading and storing of the working positions of a moving machine element
US1730052A (en) Friedrich w
US1599794A (en) Typewriting machine
US3759360A (en) Apparatus for the control of type printing sequences
US1755449A (en) Cost-accounting machine
US860296A (en) Type-writing machine.
US2297254A (en) Typewriter and like machine
US2848091A (en) Typewriter escapement mechanism
US1737337A (en) Manifolding typewriter