CN86108661A

CN86108661A - The handling mechanism for continuous sheets of printer

Info

Publication number: CN86108661A
Application number: CN86108661.9A
Authority: CN
Inventors: 前田刚
Original assignee: Toshiba Corp
Current assignee: Toshiba Corp
Priority date: 1985-12-20
Filing date: 1986-12-19
Publication date: 1987-11-04
Also published as: KR870005816A; CN1003119B; JPS62231779A

Abstract

Send the continuous form paper advance mechanism that printer that side is provided with a pair of dilatory equipment is used at the paper of platen.Should can be parallel to the platen motion by dilatory equipment, make the width coupling of its position and continuous form.Should also have a pair of ways that is arranged on the paper feeding side of platen by dilatory equipment.The lateral edges that these ways are in paper contacts, and moves with dilatory equipment, thereby sends into paper.

Description

The handling mechanism for continuous sheets of printer

The paper advance mechanism that the relevant printer of the present invention is printed on continuous form.More particularly, relevant the preventing in printer of the present invention carries continuous form to produce the paper advance mechanism of skew by the dilatory equipment of a trailed model.

The composition of the paper advance mechanism of the printer of traditional use continuous paper as shown in Figure 1.

This mechanism has a platen 1 and printhead 7, and the paper that a pair of dilatory equipment 3 is configured in platen 1 is sent side, just on top.Equipment 3 has a drive pulley that is configured in slidably on the driving shaft 9, a leading block that turns and be configured in slidably on the axis of guide 10, and the closed rubber strip around these drivings and leading block winding.One group prominent 6 with predetermined arranged spaced on the outer surface of belt.Prominent 6 and the perforation 5 that forms along the both sides of continuous form 2 engage.When axle 9 rotations, belt movement is upwards paper feeding just.

The guiding mechanism of a guiding paper 2 is configured in the paper feeding side of platen 1.This guiding mechanism has the axis of guide 8 that is arranged in parallel with platen 1, and a pair of removable vertically and be configured in the guide roller 4 of axle on 8 rotationally.

Paper 2 has various forms, and they have different width.When a kind of paper of pattern was replaced by the paper of another kind of pattern, equipment 3 was just moved axially, to making prominent 6 to insert in the perforation 5 of paper 2.Roller 4 is moved axially, to the EDGE CONTACT that makes roller and paper.

For the position that makes dilatory equipment and guide roller with paper is wide adapts, be necessary this equipment and guide roller be placed on the perpendicular plane of platen 1 on.Not to place like this, will unavoidably make paper be sent to platen sideling, the word line tilt of consequently printing, or word is printed outside the paper delivery.

Living, the position of these mechanisms and guide roller is all adjusted by the user, and they always can not be accurately positioned like this, thereby can not eliminate top pointed defective.

An object of the present invention is to provide a kind of can be to accurately the lead paper advance mechanism of continuous form of platen.

Another object of the present invention is to provide a kind of position that can regulate dilatory equipment and guiding mechanism to adapt to the paper advance mechanism of the width of the continuous form that is adopted.

Paper advance mechanism of the present invention makes and is arranged on ways that platen sends the dilatory equipment of side and be arranged on the platen supply side with the motion of a preposition relation, according to one embodiment of the invention, these ways for the guiding continuous form are connected on this equipment.Like this, when this equipment was moved, these ways also were moved.This equipment and these ways always are configured in the plane perpendicular to the platen axis.Therefore they make the continuous form platen that vertically leads.In order to regulate the position of this equipment and these ways, it is just enough only to need to move dilatory equipment.

Describe embodiment in conjunction with the drawings, the present invention will be clearer.

Fig. 1 is an oblique view of seeing the paper advance mechanism of traditions of the past from rear side.

Fig. 2 is the simple oblique view that has adopted the printer of one embodiment of the present of invention.

Fig. 3 is for seeing the oblique view according to a paper advance mechanism of the first embodiment of the present invention in the past from rear side.

Fig. 4 is a side view of paper advance mechanism shown in Figure 3.

Fig. 5 is the oblique view of seeing from rear side according to a paper advance mechanism of the second embodiment of the present invention.

Fig. 6 is the oblique view of seeing from rear side according to a paper advance mechanism of the third embodiment of the present invention.

Fig. 7 is the oblique view of seeing from rear side according to a paper advance mechanism of the fourth embodiment of the present invention.

Fig. 2 to 4 represents the first embodiment of the present invention.Fig. 2 represents a printer, and Fig. 3 is the figure that sees from rear side according to a paper advance mechanism of the present invention.

In this figure, printer comprises framework 21 and cover cap 22, and printhead 23 is installed in (not shown) on the balladeur train.Continuous form 25 is sent to along the peripheral surface of platen 24, and is printed 23 printing.Both sides along paper 25 form many for sending the perforation 26 that continuous form is used to a predetermined spacing.

The driving shaft 29 and the axis of guide 30 are configured in the paper of platen 24 and send side, just on the top of printer.These axles are arranged to be parallel to each other, and parallel with the axis of platen 24.

Axle

29 and 30 upper supports a pair of dilatory equipment 28.Make axle 29 revolution discontinuously by a driving mechanism (not shown), so that print delegation's word at every turn.

Equipment 28 comprises a drive pulley, a leading block, side plate 33 and around the closed rubber strip 32 that twines between these are taken turns.On with 32 outer surface, provide many prominent 35 with predetermined spacing.Prominent 35 spacing is equal to perforation 26 spacings on the paper 25.The revolution together of drive pulley and axle 29, and can on the axis direction of axle 29, move, leading block can turn round with axle 30, and can move on the axis direction of axle 30.

Make prominent 35 to insert in the perforation 26 of paper 25.When axle 29 revolution, belt 32 promptly is driven, thus conveyance of sheets 25 discontinuously.

In the paper feeding side of platen 24, also promptly in the present embodiment the back of platen 24 provides guide shaft 43, and guide shaft 43 is arranged to be parallel to platen 24.Storing paper 25 that (not shown) partly sends here from paper leads by the upper face of axle 43 and sends into platen 24.

One end of these ways 40 is connected respectively on the side plate 33 of equipment 28 with screw 31.Member 40 is made writing board shape.Member 40 extends to axle 43 by the top of platen 24.Cutting forms through hole on the guiding end 41 of these members 40, and is provided with the guide thimble 42 that links to each other with it, and axle 43 is inserted in hole and the guide thimble 42 loosely.Therefore, member 40 can move on the axis direction of bar 43.

The end 41 of equipment 28 and member 40 is positioned at a plane perpendicular to the axis of platen 24.Or rather, the end 41 of member 40 and the location of equipment 28 will make, when the perforation 26 of prominent 35 and paper 25 engaged, the end 41 of member 40 contacted the lateral edges 27 of paper 25 slightly.Like this, paper 25 and the platen 24 that is led by the end 41 of equipment 28 and member 40 intersects vertically.

In embodiment described above, when a kind of paper of pattern is an another kind of pattern when replacing, enter in the perforation of paper for impelling prominent 35, equipment 28 is moved along axle 29 and 30.Because member 40 moves with equipment 28, thereby the end 41 of equipment 28 and member 40 remains in the preposition relation.Therefore paper 25 can be by the platen 24 that leads orthogonally.Because member 40 moves with equipment 28, so for the position of adjustment equipment 28 and member 40, as long as mobile device 28 is just enough.

Fig. 5 represents second embodiment of the present invention.In this embodiment, saved axle 43, and guide finger 50 is stretched out towards the direction opposite with the guiding end 41 of member 40.For the paper that leads, make the lower surface of guide finger 50 contact paper 25.The length of this pin 50 is equal to the width of equipment 28 substantially, and can be mutually near contacting until them.

Fig. 6 represents the 3rd embodiment of the present invention, and in this embodiment, the long axis of guide 52 stretches out on the guiding end 41 of a member 40, and cutting forms through hole 53 on the end 41 of another member 40, and axle 52 is slidably inserted in the hole 53.

Fig. 7 represents the 4th embodiment of the present invention, in this embodiment, makes guide roller 60 turn and be bearing in movably on the axle 43.In order to guide paper, the lateral edges 27 of roller 60 and paper 25 is contacted.An end of arm 61 is connected on the equipment 28 continuously.These arms 61 laterally lengthen above platen 24, and the other end of arm 61 is connected on the roller 60.In this embodiment, by arm 61 roller 60 is moved with equipment 28.

In the 4th embodiment, one is provided with respectively for guiding paper 25 and the contacted member of the lateral edges of paper with for the coupling member that guiding parts and dilatory equipment are moved together.In first and the 3rd embodiment, a ways and the member of using with the contacted guiding paper of lateral edges of paper for co-operating ways and dilatory equipment is consisted of one.

The invention is not restricted to these embodiment described above, within the spirit and scope of the present invention, can also make various changes and improvements.

Claims

1, the paper feeder of continuous form, for paper being delivered to a printing position, the paper feeder that it is characterized in that described continuous form comprises that a pair of paper that is arranged on platen 24 sends the dilatory equipment 28 of side, described dilatory equipment 28 can be in the axially-movable of platen 24, make width coupling with continuous form 25, a pair of ways (40 in the paper feeding side of platen 24 for guiding paper 25,41,60,61), be in and during the lateral edges of low paper 25 contacted, described ways can be with the axially-movable of dilatory equipment 28 at platen 24.

2, the paper feeder of continuous form according to claim 1, wherein said ways is a ways 40, the one end is connected with described dilatory equipment 28, described member 40 extends perpendicular to platen 24 ground, the other end of described member 40 is positioned at the paper feeding side of platen 24, and the lateral edges of this other end of this member 40 and paper 25 contacts.

3, the paper feeder of continuous form according to claim 2, wherein, one axis of guide 43 is parallel to the paper feeding side that platen 24 ground are arranged on platen 24, and the other end of ways 40 has one by the hole, and axle 43 inserts in the hole of ways 40 slidably.

4, the paper feeder of continuous form according to claim 2, wherein, a guide post 50 stretches out facing to the other end of described ways 40.

5, the paper feeder of continuous form according to claim 2, wherein, one the other end of a long axis of guide 52 from described these ways 40 stretches out, and this other end of this another ways has one by hole 53, and the axis of guide 52 is slidably in the patchhole 53.

6, the paper feeder of continuous form according to claim 1, wherein said ways has the ways 40 for guiding paper 25, and be in during lateral edges with paper 25 contacts, and make described ways 40 and the coupling mutually of described dilatory equipment 28 with coupling part.