CN1408555A

CN1408555A - Ribbon box and printer

Info

Publication number: CN1408555A
Application number: CN02143152A
Authority: CN
Inventors: 山县毅
Original assignee: Oki Electric Industry Co Ltd
Current assignee: Oki Electric Industry Co Ltd
Priority date: 2001-09-13
Filing date: 2002-09-13
Publication date: 2003-04-09
Anticipated expiration: 2022-09-13
Also published as: JP2003080812A; HK1053444A1; CN1277690C; KR100904877B1; KR20030023499A

Abstract

To facilitate the work for replacing an ink ribbon without staining the hand. SOLUTION: The ribbon cassette 1 has an ink ribbon 15 stretched from a first guide arm part 14a provided at one end part of a ribbon case 14 toward a second guide arm part 14b provided at the opposite end part wherein a ribbon guide 17 for leading the ink ribbon 15 to a print head 8 part is clamped at the stretching part of the ink ribbon 15 such that the ribbon guide 17 can be fixed removably to the ribbon case body 14. Furthermore, the ribbon guide 17 stops the ink ribbon 15 in slidable shape by means of a ribbon protector 18.

Description

Ribbon cartridge and printer

Technical field

Ribbon cartridge that uses on the printer that the present invention relates to print in the media with print head and the printer that uses this ribbon cartridge by colour band.

Background technology

There is the account ticket printer be used in printer of keeping accounts on the bankbook of the cash banding machine (ATM) that is built in financial institution etc. and use in general family etc. as the output machine of personal computer.Particularly, in these printers, on the medium that are imported on the lettering pressing plate, in impact printer and thermal transfer type printer, owing to when printing, consume coating ink on tape, so Ribbon Change more sometimes by colour band printing.Because the replacing operation of colour band is undertaken by the user usually, makes it easy replacing so want various ways.

For example, in No. the 2775820th, Japan Patent, a kind of printing mechanism that the more operation of Ribbon Change is carried out is easily disclosed.In this printing mechanism, print head is all used bearing bracket with the medium suppression member with ribbon guide function.This carriage can move in the vertical direction in the face of the lettering face of lettering medium.Have, it can be the center rotation with the supporting track that carrier configuration becomes, and simultaneously, and can move by along continuous straight runs on supporting track again.Medium suppression member can be along the direction rotation of leaving from print head.

Though easily on above-mentioned printer with the replacing operation, the user must carry out colour band is imported the operation of lettering head.In a single day the ink of general impact printer is bonded on hand and finger and the clothes, just is difficult to remove, and therefore will expertly induce belt with the equivalent substitute of ball pen.Also have,,,, just be difficult to processing for the user owing to bring out stained and the scarce word etc. of medium in the incorrect occasion of setting of band.

Purpose of the present invention is, in order to address the above problem, provide a kind of when changing belt the tape drum of easy operating.

Summary of the invention

In order to address the above problem, tape drum of the present invention is a kind of ribbon cartridge to the print head supply colour band that carries out lettering, it is characterized by, and comprising: have the housing that colour band outlet and colour band reclaim mouth; Be contained in the aforementioned housing and come out, during entering the way that aforementioned colour band reclaims mouthful, be exposed at the colour band that hull outside and tensioning are provided with from aforementioned colour band outlet; And the tape guide portion on the aforementioned colour band that exposes of being installed in is when using ribbon cartridge, and aforementioned tape guide portion is contained on the print head, guides aforementioned colour band to aforementioned print head.

Also have, being characterized as of aforementioned tape drum, aforementioned tape guide portion can install and remove in aforementioned housing.

Have again, being characterized as of aforementioned tape drum, colour band can support slidably in aforementioned tape guide portion, simultaneously, can and then protect aforementioned colour band slidably from the external world by the protector of band.

Also have, a kind of printer is arranged, above-mentioned tape drum can be installed, it is characterized by, be provided with: be oppositely arranged and support the lettering pressing plate of lettering medium with aforementioned print head; Load aforementioned print head, simultaneously can with respect to aforementioned lettering pressing plate along away from direction and the head rest that moves of approaching direction; And at above-mentioned print head and between the aforementioned medium that are directed on the aforementioned lettering pressing plate; and can be rotationally be bearing in head protector on the aforementioned head rest with axle; when the mounting or dismounting of aforementioned tape drum; the user rotates aforementioned head rest and head protector; between aforementioned print head and aforementioned head protector, predetermined gap is set; and admit aforementioned tape drum from this gap, can hang on the above-mentioned head rest simultaneously.

Description of drawings

Fig. 1 is the side view that the structuring concept of printer of the present invention is shown.

Fig. 2 is the outside drawing that tape drum of the present invention is shown.

Fig. 3 illustrates the details of tape guide portion.

Fig. 4 is the fragmentary, perspective view of relation that the protector of tape guide portion and band is shown.

Fig. 5 is the front view that the pith when being installed in tape drum on the head rest is shown.

Fig. 6 is the key diagram that the installation method of tape drum of the present invention is shown.

Fig. 7 is the side view of the state when tape drum being shown exchanging on printer of the present invention.

The specific embodiment

Below, one side is referring to accompanying drawing, and one side is described in detail with regard to each form of implementation of the present invention.

Embodiment 1:

Fig. 1 is the side view that the structure of printer of the present invention is shown.

In Fig. 1, when on medium 3, printing various literal and figure (below be called lettering) with printer 2, make Ribbon cassette 1.Conveying roller is to the 4 upper and lower surface crimping from medium 3, clamping medium 3.Conveying roller is many to (only illustrating two pairs among Fig. 1) for being provided with along medium landline 5 to 4, and drives rotation by not shown stepping motor, along the direction transport medium 3 of arrow M.Lettering pressing plate 6 is arranged on the position relative with print head 8, when lettering, from inboard supporting medium 3.Ways 9 is arranged to run through the head rest 7 of carrying print head 8 with drive member 10, and the front end of print head 8 then supports print head 8, makes the lettering face of its relative lettering pressing plate 6 vertical.Ways 9 supports head rest 7 slidably, then is carved with spiral helicine groove on drive member (feed screw) 10.In case drive member 10 rotations then are used to make the driving force of head rest 7 walkings to pass through the groove of said spiral shape towards head rest 7 transmission.That is to say that the running gear (not shown) by formation print heads such as ways 9 and drive member 10 makes head rest 7 slide along lettering truss direction.

Fig. 2 is the outside drawing that tape drum 1 of the present invention is shown, and it illustrates the state before being installed in it on printer.Tape drum 1 is by belt delivering roller and brake component formations such as (brake) in the shell 14 of housing 14, colour band 15, adjuster 16 and the band of band, not shown.In the present invention, on the housing 14 of band, the tape guide portion 17 that is used for keeping slidably in use colour band 15 can be housed with freely installing and removing.

The end of length direction at the housing 14 of band as shown in the figure, forms the first guide part 14a and the second guide part 14b Face to face.The first guide part 14a is the outlet that is used for supplying with to print head 8 colour band 15.The second guide part 14b then is the recovery mouth of colour band 15.Colour band 15 maintenance that can operatively suitably be tensioned easily.

Still untapped tape drum 1 is by state shown in Figure 2, promptly is contained on the colour band 15 by tape guide portion 17 and the part of colour band 15 is suspended on state on guide part 14d, the 14e, with sealings such as vacuum packaging or Polythene Bag preservation to prevent ink dried.

Fig. 3 illustrates the details of tape guide portion 17.Two sliding part 17c of gathering sill 17c that formation becomes the path of colour band 15 are arranged to, with mutually at angle.In the direction vertical, stretch out two operating portion 17g, 17g with respect to the bearing of trend of colour band 15.Operating portion 17g, 17g have hook part 17a, 17a at its front end, at rear end part knob portion 17b, 17b are arranged.Have, operating portion 17g, 17g are bearing in the 17h of wall portion with its roughly middle part again.If the direction along arrow G and H is afterburning simultaneously, then operating portion 17g, 17g are divided into the fulcrum strain with the intermediate portion, and hook part 17a, the 17a of front end enlarges along the direction of arrow I and J.If power is removed, then link up with part 17a, 17a and get back to original position with elasticity.Colour band 15 is opened by two gathering sill 17c to be established, and the colour band protector 18 with hole 18a that the some pin of print head 8 can pass through occupies gathering sill 17c.

Fig. 4 is the fragmentary, perspective view that tape guide portion 17 and the relation of the protector 18 of band are shown.In tape guide portion 17, the protector 18 of band is installed.On the sliding surface of the colour band 15 of tape guide portion 17, form the gathering sill 17c slightly wideer than the width of colour band 15, after colour band 15 is directed to, colour band protector 18 is installed, so that cover this gathering sill 17c in this gathering sill 17c.The installation towards tape guide portion 17 of protector 18 of band also can be used screw clamp and bonding etc.In this form of implementation, in four places of protector 18 of band jut 18b is set, four places at the sidewall of the sliding part 17e of the gathering sill 17c that forms tape guide portion 17 are provided with the hole 17d that admits aforementioned jut 18b.By direction the protector of being with 18 is embedded in the tape guide portions 17, and jut 18b is embedded among the 17d of hole, the protector 18 of band can be assemblied in the tape guide portion 17 along arrow L.Centre at the protector of being with 18 has diamond hole 18a, and it makes fillet with the relative while of some pin of print head in the bight.Existing high speed print head is owing to making medium 3 and its gap little (having reduced the actuating length of some pin), so the protector 18 of band is generally used the sheet metal manufacturing with the thickness about 0.05～0.1mm.Also have, in the face of the part of the colour band 15 of the some pin of print head is subjected to the strike of a pin, damage easily is so when colour band 15 withdraws from, be easy to generate tortuous walking and in problems such as folding of width.In order to prevent the appearance of these problems, colour band 15 is directed to along the gathering sill 17c of given length.

Fig. 5 is the front view that the pith when being contained in tape drum 1 on the head rest 7 is shown.When lettering, medium 3 are positioned on the lettering pressing plate 6, and head protector 12 then contacts with medium 3 and walks.Colour band 15 contacts with tape guide portion 17 with the protector 18 of band on the one hand, on the one hand by gathering sill 17c.Though tape guide portion 17 is the most approaching with medium 3 below print head 8,, the part in addition below print head is then fully isolated with medium 3.Like this, the occasion of lettering because colour band 15 contacts with the other parts of medium, is not polluted medium, so is favourable near the intermediate support part (middle bookbinding part) of the deposit of laterally opening thin (left and right page or leaf is arranged as magazine etc.).

Fig. 6 is the key diagram that tape drum 1 of the present invention is shown.Referring to Fig. 6, the band housing 14 in as blower tray capacity ribbon 15, by rotary actuator 16, can withdraw from colour band 15 in the direction of arrow A.When lettering, not shown dc motor drives the axle of this adjuster 16 of rotation.On the top in the outside of tape drum 14, a pair of jut 14c, 14c and guide part 14d and 14e and block 14f form, and as hereinafter described, all the retainer belt guide part 17, until tape drum 14 is contained on the printer.Also have, jut 14c, 14c and guide part 14d, 14e and block 14f are not limited to the position shown in the figure, have again, also can not form with tape drum 14, but form as independent part.

The jail hangs on the housing 14 of band by hook part 17a in tape guide portion 17.If one side is clamped knob portion 17b with finger, one side is suppressed along the block 14f of the side of the housing of being with 14, then links up with part 17a and jut 14c interferes.If further suppress, it is crooked laterally then to link up with part 17a, pinched protrusion part 14c, thus hook part 17a keeps jut 14c securely by elastic force, so can not fall from the housing 14 of band.Block 14f contacts with the 17h of wall portion of tape guide portion 17, prevents that tape guide portion 17 from further pushing towards the housing 14 of band.

When taking out tape guide portion 17, if catch two knob portion 17b with finger on the one hand, add external force on the one hand, make it close mutually, then linking up with part 17a is that fulcrum opens laterally with the cardinal principle mid portion, releasing tangles with jut 14c's.At this moment, if, just can take off tape guide portion 17 from the housing 14 of band near this one side drawstring guide part 17 of reader.Also have, the tape guide portion 17 shown in the figure is shaped as with the integrally formed example of plastic resin, and the shape of knob portion 17b etc. are also unrestricted.

The side view of head rest, tape guide portion and tape drum when Fig. 7 is the tape drum replacing that is illustrated on the printer of the present invention.

On the lower end of head rest 7, it can be the center swing with pivot point 11 that head protector 12 is mounted to.Head protector 12 is provided with the hole on the mid portion of the front end of print head 8, simultaneously, surrounds near the front end of protection print head 8 also.As shown in Figure 1, the front end face of print head 8 to the lettering face of lettering pressing plate 6 vertically towards the time, head protector 12 has the effect of avoiding colour band 15 to contact with medium 3, simultaneously, makes the gap that can suitably keep print head 8 and medium 3.Also have, this part also is a disclosed technology in No. the 2775820th, Japan Patent.Jut 7a is provided with for back described tape guide portion 17 is installed.

Box platform 13 is what to be used for fixing by the tape drum 1 of user loading and unloading, and it is fixedly mounted on the shelf (not shown) that keeps ways 9 and drive member 10.On this box platform 13, be provided with as be used to the dc motor of drive source of feeding, when lettering, be rotated control by not shown control device.

Relevant order of taking off tape drum 1 from printer is illustrated referring to Fig. 7.By not shown back-off assembly, whole shelf is rotated in the direction of arrow C, so that operate tape guide portion 17 easily.At this moment, shown in 7,, be the center with pivot point 11 owing to can use finger manipulation head protector 12, can make it to rotate towards printer side, so head protector 12 is big with the gap change of print head 8, carry out operation easily.If on the one hand, apply external force on the one hand with two knob portion 17b of finger retainer belt guide part 17, make it adjacent to each other, then linking up with part 17a is that fulcrum opens laterally with mid portion roughly, then closes with the extension of the jut 7a of head rest 7 to obtain removing.Under this state,, take off on the carriage 7 from the head along E direction drawstring guide part 17.The tape guide portion 17 of taking off still is contained in the housing 14 of band as shown in Figure 6, then, takes off whole tape drum 1 from box platform 13.

Herein, occasion at the discarded tape drum 1 that takes off, though do not need colour band 15 is contained on guide part 14d, the 14e, but, the occasion of temporarily taking off, be contained on guide part 14d, the 14e by a part, can prevent from the retainer 18 of the band of the thin thickness of plate, to give excessive load colour band 15.

Since with tape drum 1 be installed on the print head 8 order roughly with above-mentioned reversed in order of taking off, so its explanation is saved.Also have, as shown in the figure, tape drum 1 of the present invention is made and is comprised tape guide portion 17 and change.

As mentioned above; be directed among the given gathering sill 17c of colour band 15 in being arranged on tape guide portion 17; have again; owing to assemble in the mode that the protector 18 with band covers; even so with the operation of Ribbon Change 15 more in carry out the cleaning etc. of lettering pressing plate 6 and print head 8 occasion, also can not make protector 18 distortion of band.Tape guide portion 17 removes with beyond the jut 7a of head rest 7 engages, and also by the definite position of opening of colour band 15, simultaneously, surrounds around it by head protector 12.

The replacing operation of the band in this printer can the retainer belt guide part knob portion, guiding band on the lettering head.In other words, when handling colour band, needn't take a lot of trouble,, can correctly set colour band if carry out the installation exercise of tape guide portion.Have, hand and finger and clothes can be by inkiness again.Therefore, because as long as note not having the bad grade of the installation on head rest of tape drum, so can alleviate user's psychological burden.

Claims

1. a ribbon cartridge is supplied with colour band to the print head that carries out lettering, it is characterized by, and comprising: have the housing that colour band outlet and colour band reclaim mouth;

Be contained in the aforementioned housing and come out, during entering the way that aforementioned colour band reclaims mouthful, be exposed at the colour band that hull outside and tensioning are provided with from aforementioned colour band outlet;

And be contained in tape guide portion on the aforementioned colour band that exposes,

When using ribbon cartridge, aforementioned tape guide portion is contained on the aforementioned print head, guide aforementioned colour band to aforementioned print head.

2. ribbon cartridge as claimed in claim 1 is characterized by, and aforementioned tape guide portion can install and remove in aforementioned housing.

3. ribbon cartridge as claimed in claim 1 is characterized by, and colour band can support slidably in aforementioned tape guide portion, simultaneously, can and then protect aforementioned colour band slidably from the external world by the protector of band.

4. a printer can be installed as claim 2 or 3 described ribbon cartridges, it is characterized by, and it is provided with:

Be oppositely arranged and support the lettering pressing plate of lettering medium with aforementioned print head;

Load aforementioned print head, simultaneously can with respect to aforementioned lettering pressing plate along away from direction and the head rest that moves of approaching direction; And

At aforementioned print head and between the aforementioned medium that are directed on the aforementioned lettering pressing plate, and can be rotationally be bearing in head protector on the aforementioned head rest with axle,

When the mounting or dismounting of aforementioned tape drum, the user rotates aforementioned head rest and head protector, between aforementioned print head and aforementioned head protector predetermined gap is set, and from this gap aforementioned tape guide portion is installed on the aforementioned head rest.