DE1561363A1 - Printing unit, especially for label printing and output devices - Google Patents

Description

PATBNTANWXITI Dipl.-Ing. WEHNSR FREE

"&. HEUMABlCr SB - BUP. B» «B. KÖlll, ΛβΏ. 1 7 · 2. 1 96? ** ^Ό '^ ^Ο ^

M; 1 PaGm 67/1

Meto-Gesellschaft Oacar Kind mbH., Hirsohhorn / JÜTeckar

Printing unit, in particular for label printing and output devices

The invention relates to a printing unit, in particular for label printing and output devices, with type wheels that have radial recesses on their hubs into which the driver of an axially adjustable and rotatable key shaft can engage with the radial, the number the type wheels corresponding grooves is provided, the widths of the type wheels corresponding distances from one another and in which a resilient detent engages.

There are printing units known, the key wave of which is more than is twice as long as the length of the character wheel package a and the driver is arranged approximately in the middle of the length of the key shaft. On both sides of the driver are arranged on the key shaft sleeves, which together with the key shaft axially displaceable, but secured against rotation in the frame of the printing unit. On the Sleeves an axially extending rib is arranged,

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which in a radial recess on the hub of the type wheels intervenes. These sleeves with the rib hold the type wheels in the printing position, while the one between The type wheel located in the sleeves, in which the driver engages, can be adjusted by turning the key shaft.

This known printing unit has the disadvantage that it is very wide because of the long key, which is before is particularly annoying with manually operated label printing and output devices.

The object of the invention is to design a printing unit of the type mentioned so that it can be adjusted easily and low construction costs is highly resilient and takes up little space.

According to the invention, this object is achieved in that the type wheels are rotatable on a frame in the printing unit mounted sleeve are stored, which has a substantially axially extending Schiita, by the driver of the axially displaceable key shaft in the sleeve into the radial recesses of the Type wheel takes effect and that each type wheel has a resilient, Remaining device holding the type wheel in pressure division is provided.

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In Üieährk nöaen "Druckwerk the key wave is only slightly laiigör as & äk siclr iniiö several type wheels, ζ.Βί M Mef t2 iicii sitiCöäiiOi§n ¥ e" lÄend the packages

elffef vöfteiihäffteii iüöfühtufig'sform ter ilrfindtiiig jeäää ^ penrsä üie gleiüiie Αηέ & ηΐ of printing types and lotitöprecnehdeV tM examples of 1QO or 180 ° to the leweiiigeö printing types there is a choice or there is a need for printing types out of every setting, the driver can only be brought into engagement with oil type wheels by: The set print types are always the 'ieee ^ aiiä ^ n üätfi -Wich

A sfnaöre Vorte ^ ilhWfte Ausführungsforo the invention iät characterized in / that the driver is inserted in the radial direction resiliently in the Schlüsseiwelle and its engaging in the recesses of the type wheels head in, the axial direction roof-like sloping edges on v / eist and each print wheel on its Nabe nui 'has a recess that jumps in from the sides of the type wheel to its cement and is assigned to a certain type of printing. This embodiment is particularly advantageous when the printing unit has only a few, for example 4 to 6 type wheels with relatively large printing types.

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1561113

In the following description there are two play the invention with reference to the drawings explained in more detail. Show it:

Fig. 1 is a radial sectional view, Fig. 2 is an axilla sectional view, Fig * 5 is a plan view of the new printing unit ^ Fig. 4 is a radial Schhittänsicht and Fig. 5 is an axial sectional view of an angled Embodiment of the printing unit according to the ErflMuni; ·

The 'Printing unit according to Fig * 1 to 3 sets sie'h Ott type wheels 1 together, the öiäd pushed onto a rotatably mounted in ßtsteil 2 of the printing sleeve "$" on their hubs 4, the type wheels radially "fertilizing 5, into which a driver mark 6 engage an axially cash Schlüeselwelle 7. lös 3 littief $ ■ i # t an axially extending slot 8 arranged # dttröm to the carrier 6 in the radial recesses 5 δβί type wheels 1 engages. Using a verdrehferfc on the key shaft 7 With the adjusting wheel 9 attached, the driver 6 can be brought into engagement with each of the type wheels 1 by axially displacing the key shaft 7, and the desired printing type 16 can be brought into the printing position by turning the adjusting wheel 9. Ten grooves 10 are spaced apart in the key shaft 7 arranged, which correspond to the widths of the type wheels 1 «In these grooves 10 at least one engages under the pressure of a spring 0Q98Ö & / ÖU4

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standing ball 11 a. It is through this detent that the engagement is brought about of the driver 6 with the individual type wheels, dern 1 facilitated.

On the frame 2 of the printing unit there are pivotable sensing levers 13 around the axis 12, which are counteracted by leaf springs 14 serrated wheels 15 formed on the sides of the type wheels 1 be printed. These locking levers 13 cause sioh the Do not turn type wheels 1 unintentionally and that they jump into such a position in which the print types 16, the reading number 17 and the recesses * 5 of each Align type wheels with each other. Since each type of printing 16 is assigned a reading number 17 and a radial recess 5 is, the driver 6 can be brought into engagement with each type wheel 1 by axially displacing the Sohlüsselwelle 7 will/

In order to facilitate the setting of the type wheels 1, a pointer 18 , which extends over the circumference of the type wheels 1 and is guided in the housing 2 so that it is axially displaceable and secured against rotation, is mounted near the setting wheel 9 on the Schlüsselwellθ 7. The tip 19 of the pointer 18 points to the type wheel 1 which is in engagement with the driver 6 and to the reading number 17 of the type wheel which is in print division.

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iAD. ORfGiNAL

The printing unit according to Flg. 4 and 5 aatst eich from five type wheels 1 'together ', which however only have printing types 16 but no reading numbers or characters. The type wheels 1 * are also pushed onto a sleeve 3 which is rotatably mounted in the frame 2 and which is provided with a longitudinal slot 8 through which the driver 6 * of the key shaft 7 * engages. In the hubs 4 ^{1 of} the type wheels 1 · there is always only one radial recess 5 'which protrudes inwardly in the form of a trough from the sides of the type wheel 1 ^f . In this one trough-shaped recess 5 * of a type wheel 1 ', a driver 6 ^{f can} engage, which is arranged in the key shaft 7' so as to be radially displaceable under the pressure of a spring 20. The head 21 of the deflecting driver 6 ', which engages in the trough-shaped recesses 5 ^{1 of} the type wheels 1 *, has flanks 22 which run inclined in the axial direction like a roof, so that when the key shaft 7 ^{1 is} axially displaced, the driver 6 ^f with its head 21 moves out of the trough-shaped Recess 5 ^{1 of} a type wheel 1 · jumps «The head 21 can also be spherical or kagelfttraig designed sain ·

The ball 11 latching in the grooves 10 of the base wall 7 * causes the driver 6 * to have a head. on the cylindrical inner surface ainaa of the type wheels 1 'comes · Äuteb turning da · stall **! * · 9 * the head slides the driver · 6 »on the diaae« ylindliach · inner surface until it enters the one trough-shaped recess 5 * of this type-

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it 1 'springs into place * The mid-shaped recesses 5 * are g eiier type of printing of the iiype-wheels ■ t:' train-

ää with the same position of the wheel 9 ^f at {Dyfearöd t ^f Moh the same type of printing 16 in ifiüdöttf 2ur relief äe? Mriststellung • f ^ di # ät a Äßsteigeröscheibe 23, which is fixed with

^ ' ^: Connected faft and; type whose- scope readable- 24 öder -jseiehöit öiigeordDie't ffind ^ which 'correspond to the "printing types 16 of the! f ^ ffttiradtr t ^f * If, for example, the fhi ^fi 4 ^if ih Abiesesteliüng _r then there is also the printing- ^ Λ ^: # ό Φ4? τίΑΤ'ΐΐΓ * ο ^Γ Λ'ώΟ 'ί f η. * f ti ^r Λ'ίίΟί Λ'ού * ¹ ffiÄ- Ίγυϊ ufern air *

in the

Wetift fetfföpieisweitt Ü # Mideii leftft l ^ pönrädei Letters teigett ttnd (Sit dVfi i ^ chteö! Pypetträde ^ 2ani # n- t ^ ätgetif d'Äßö ksnä; also a second index disk 25 Tötg # tifiie de ^ e -Buirfistatien ' 2 & aögeliraeht are _t which correspond with the letter printing types mxf the feeiden left ^ ßenrMern t ^f .

In Fig * 4, the new printing unit is in the head 30 of a hand operated price label printing and output device arranges * frame 2 of the printing unit is vertical Walls of a hand lever 32 that can be pivoted about the axis 31 educated. Labels adhering to a carrier tape are passed over a pressure plate 33. Get sound there they are placed under a pressure roller 34 in a known manner.

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The printing types 16 are provided with an underlay inking 35 colored.

The invention can analogously also be applied to printing units whose printing types are attached to rubber or plastic belts or link belts guided over discs are.

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Claims (5)

PA TENT AJSPRÜCHB:. (^ Printing unit, especially for label printing and output devices, with type wheels that have radial recesses on their hubs, in which the driver of an axially adjustable and rotatable key shaft can engage, which is provided with radial grooves corresponding to the number of type wheels, which have the widths of the type wheels from each other and in which a resilient catch engages, characterized in that the type wheels (1,1 ') are mounted on a rotatably mounted in the frame (2) of the printing unit sleeve (3) which has a essentially axially extending slot (8) through which the driver (6) of the key shaft (7) guided axially displaceably in the sleeve (3) engages in the radial recesses (5) of the type wheels (1 1 1 ') and that a resilient locking device '(13, 14, 15) holding the type wheel in the printing position is provided for each type wheel * 2. Printing unit according to claim 1, characterized in that each type wheel (.1) has the same number Printing types (16) and corresponding reading numbers or characters (17) and each printing type an axial one Recess (5) is assigned to the hub (4). 009809/0 Ui - 10 - 3. Printing unit according to claim 2, characterized in that on the key shaft (7) in the vicinity of the setting wheel (9) a pointer (18) reaching over the circumference of the type wheels (1) is axially immovable, which is guided axially displaceably on the frame (2) of the printing unit secured against rotation and its tip (19) each to the one in engagement with the driver (6) Character wheel (1) and the reading number (17) of the respective set printing type (16) has. 4. Printing unit according to claim 1, characterized in that the driver (6 ^f ) is inserted resiliently in the radial direction into the key ^{shaft (7 1} ) and its head (21) engaging in the recesses (5 ¹ ) of the type wheels (1 ¹⁾ in the axial direction roof-like inclined planks (22) and each type wheel (1 ¹ ) on its hub (4 ') has only one recess (5 ¹ ) from the sides of the type wheel (1') to its center inward jumps in and is assigned to a specific pressure type. 5. Printing unit according to claim 4, characterized in that with the adjusting wheel (9 ¹ ) of the key shaft (7 ') an indicator disc (23) is rigidly connected, on the circumference of which reading numbers (24) or characters are arranged, which are associated with the printing types (16) of the type wheels (1 ¹ ) correspond. 009809/0144 L e r s e i f e