EP0437005B1 - Typenscheibe für Schreibmaschinen o.dgl. - Google Patents

Typenscheibe für Schreibmaschinen o.dgl. Download PDF

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Publication number
EP0437005B1
EP0437005B1 EP90250327A EP90250327A EP0437005B1 EP 0437005 B1 EP0437005 B1 EP 0437005B1 EP 90250327 A EP90250327 A EP 90250327A EP 90250327 A EP90250327 A EP 90250327A EP 0437005 B1 EP0437005 B1 EP 0437005B1
Authority
EP
European Patent Office
Prior art keywords
hub
daisy wheel
drive shaft
webs
wheel according
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
EP90250327A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0437005A1 (de
Inventor
Olaf Meisner
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0437005A1 publication Critical patent/EP0437005A1/de
Application granted granted Critical
Publication of EP0437005B1 publication Critical patent/EP0437005B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • B41J1/28—Carriers stationary for impression, e.g. with the types or dies not moving relative to the carriers
    • B41J1/30—Carriers stationary for impression, e.g. with the types or dies not moving relative to the carriers with the types or dies moving relative to the carriers or mounted on flexible carriers
    • 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
    • B41J1/243—Mounting or fixing the carriers

Definitions

  • the invention relates to a type disk for typewriters or the like.
  • a hub made of resilient plastic and with radially outwardly directed from the hub, designed as a type support, resilient spokes, in which the hub has a central hole for initiating rotary movements in the type disk
  • Serving drive shaft of the typewriter is provided and has on its side facing the free end of the drive shaft projecting resilient webs with locking lugs that can snap into an annular groove of the drive shaft, the rear sides of the webs being at a distance from the axis of the type plate that is less than half the diameter of the central hole of the hub.
  • the invention has for its object to provide a type plate of the type under consideration, which can be produced with simple injection molding tools and which ensures a secure fit on the drive shaft with easy assembly and disassembly despite low production costs.
  • This object is achieved according to the invention in a relevant type plate in that the latching lugs are arranged at the free ends of the webs which are designed as cantilever arms which are deformable in a plane parallel to the object.
  • the type plate according to the invention offers the advantage of low manufacturing costs and high flexibility of the cantilever arms in the radial direction with high rigidity in the axial direction.
  • FIGS. 1 to 3 1 is the property of a type disk, from which spring-elastic spokes, not shown in a known manner, extend outward with types arranged at their free ends.
  • the hub 1 has a central hole 2, the diameter of which corresponds to the diameter of a drive shaft 3.
  • the locking lugs 7 are arranged on the inner sides of the free ends of crescent-shaped cantilever arm sections 8, the backs 9 of which, viewed in the axial direction of the type plate (cf. FIG. 1), are at a distance from the inner wall 10 of the central hole.
  • the ends of the cantilever arm sections facing away from the latching lugs 7 are connected to the hub 1 via short, radially outwardly directed cantilever arm sections 11, the cantilever arm sections 11 forming integral components of the hub 1.
  • Around the cantilever arm sections 8 in the axial direction A sufficient rigidity, but to impart sufficient flexibility in the radial direction, they have a substantially rectangular cross section, ie viewed in Figures 2 and 3, their height is greater than their width.
  • the cantilever arm sections 8 can be injection molded with simple means, that is, in particular, there is no need for metallic inserts which ensure the mobility or resilience of the resilient cantilever arm sections 8 .
  • FIGS. 1 to 3 show the hub of a type plate, which is intended for drive shafts 3, the expansion head has a significantly smaller diameter than the hole 2 of the type plate.
  • FIGS. 4 to 6 show an embodiment which is intended for drive shafts 12, the expansion head 13 of which has a diameter which is only slightly smaller than the diameter of the main part of the drive shaft 12.
  • the hub 1 it is necessary to have the hub 1 to provide the type plate with a central hole 14, the diameter of which is larger than the diameter of the expansion head 13.
  • too, gaps are obtained between the back 9 of the cantilever arm sections 8 and the inner wall 16 of the central hole 14 in the axial direction of the drive shaft 12 and the type plate, which enable inexpensive production of the type plate.

Landscapes

  • Mechanical Operated Clutches (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Holding Or Fastening Of Disk On Rotational Shaft (AREA)
  • Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
  • Handling Of Sheets (AREA)
EP90250327A 1990-01-12 1990-12-21 Typenscheibe für Schreibmaschinen o.dgl. Expired - Lifetime EP0437005B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4001080A DE4001080A1 (de) 1990-01-12 1990-01-12 Typenscheibe fuer schreibmaschinen o. dgl.
DE4001080 1990-01-12

Publications (2)

Publication Number Publication Date
EP0437005A1 EP0437005A1 (de) 1991-07-17
EP0437005B1 true EP0437005B1 (de) 1995-06-14

Family

ID=6398168

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90250327A Expired - Lifetime EP0437005B1 (de) 1990-01-12 1990-12-21 Typenscheibe für Schreibmaschinen o.dgl.

Country Status (5)

Country Link
US (1) US5106214A (enrdf_load_html_response)
EP (1) EP0437005B1 (enrdf_load_html_response)
JP (1) JPH04314549A (enrdf_load_html_response)
KR (1) KR910014217A (enrdf_load_html_response)
DE (1) DE4001080A1 (enrdf_load_html_response)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4339239C1 (de) * 1993-11-12 1995-04-27 Ransmayer A & Rodrian A Typenscheibe für eine Schreibmaschine
US8580326B2 (en) 2004-04-08 2013-11-12 Cargill, Incorporated Treating meat from dark-cutting carcasses using an acidification process

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3878929A (en) * 1973-11-23 1975-04-22 Pitney Bowes Inc Type disc with integral coupling device
US3986593A (en) * 1975-05-14 1976-10-19 Pitney-Bowes, Inc. Snap-action fastener assembly
DE3140177A1 (de) * 1981-10-08 1983-04-28 Alfred Ransmayer & Albert Rodrian, 1000 Berlin Typenrad
DE8129561U1 (de) * 1981-10-08 1982-03-11 Alfred Ransmayer & Albert Rodrian, 1000 Berlin Typenrad
CH648790A5 (fr) * 1982-04-05 1985-04-15 Caracteres Sa Dispositif pour la fixation amovible d'un disque porte-caracteres de machine imprimante sur l'arbre moteur qui l'entraine.
US4465387A (en) * 1982-09-30 1984-08-14 Data Motion, Inc. Daisy wheel mounting apparatus
CH651503A5 (fr) * 1983-02-09 1985-09-30 Caracteres Sa Disque porte-caracteres pour machine imprimante.
US4496254A (en) * 1983-03-18 1985-01-29 Primages, Inc. Method and apparatus for mounting a daisy print wheel on the shaft of a print head
SU1260252A1 (ru) * 1983-05-12 1986-09-30 Специальное Конструкторское Бюро Средств Отображения Информации Лепестково-дисковый литероноситель
CH654526A5 (fr) * 1983-11-25 1986-02-28 Caracteres Sa Disque porte-caracteres pour machine imprimante.
CH656836A5 (fr) * 1984-05-22 1986-07-31 Caracteres Sa Disque porte-caracteres pour machine imprimante.
US4591282A (en) * 1984-06-29 1986-05-27 International Business Machines Corporation Drive mechanism for a ribbon disc
DE3637437A1 (de) * 1985-11-07 1987-05-14 Caracteres Sa Typenrad fuer einen drucker

Also Published As

Publication number Publication date
DE4001080A1 (de) 1991-07-18
JPH04314549A (ja) 1992-11-05
EP0437005A1 (de) 1991-07-17
KR910014217A (ko) 1991-08-31
DE4001080C2 (enrdf_load_html_response) 1991-10-24
US5106214A (en) 1992-04-21

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