CN103002191A - Manuscript reading device - Google Patents
Manuscript reading device Download PDFInfo
- Publication number
- CN103002191A CN103002191A CN2012103347170A CN201210334717A CN103002191A CN 103002191 A CN103002191 A CN 103002191A CN 2012103347170 A CN2012103347170 A CN 2012103347170A CN 201210334717 A CN201210334717 A CN 201210334717A CN 103002191 A CN103002191 A CN 103002191A
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- China
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- framework
- contact glass
- reading apparatus
- document reading
- original document
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- Facsimile Scanning Arrangements (AREA)
- Facsimiles In General (AREA)
- Electrophotography Configuration And Component (AREA)
Abstract
Provided is a manuscript reading device. A piece of manuscript bench glass (11) is mounted on an open part (20) that is formed on an upper surface of a frame (2). Support parts (22) are continuously formed at the periphery of the open part (20) of the frame (2) and are significantly higher than other parts. In addition, the manuscript bench glass (11) is supported by the support parts (22), and the manuscript bench glass (11) and the support parts (22) are contacted in an airtight manner. In this way, the frame is not subjected to deformation such as flexure, and intrusion of foreign matters into the frame is avoided without an increase in the number of the components.
Description
Technical field
The present invention relates to for photocopier, fax, printer and compound the original document reading apparatus that possesses the image processing system of these functions.
Background technology
Thereby original document reading apparatus optical profile type ground scan manuscript reads original copy.Particularly, at contact glass mounting original copy and to its irradiation light, this reverberation and transmitted light are carried out that optical profile type is processed and with the photo-electric conversion element of CCD etc. this reverberation and transmitted light converted to digital signal and form view data.Herein, if the foreign matter of dust etc. is attached on the opticses such as the interior speculum of original document reading apparatus and lens, then this foreign matter also is read as image, and the result causes the decline of image quality.
In the past, for the device framework is installed contact glass, for example, come contact glass is supported by at four jiaos of framework etc. protuberance being set for the Decision Height position, but between contact glass and framework, produce the gap, the situation that exists foreign matter to invade in the framework from here.In addition, also can consider at the peristome that is formed at framework contact glass to be installed directly, if thereby but the then strength decreased framework deflection of framework of thickness attenuation of receptacle material, thus between contact glass and framework, produce the gap, in the same manner as described above, foreign matter is invaded from the gap.
Therefore, for example in Japanese kokai publication hei 7-287438 number, thereby propose to have the structure that prevents the intrusion of foreign matter by sandwiched seal member between contact glass and framework.
Yet in the structure of above-mentioned motion, seal member must be folded in the whole peripheral extent of contact glass, so that assembling operation becomes is numerous and diverse, operating efficiency descends.And components number also increases.
Summary of the invention
The present invention produces in view of this type of problem in the past, its purpose is, be equipped with in the original document reading apparatus of contact glass at the peristome that is formed on the framework upper surface, do not make the distortion of deflection etc. result from framework, and do not make components number not prevent that foreign matter from invading with increasing in framework.
The original document reading apparatus involved in the present invention of reaching above-mentioned purpose is characterised in that to have: the framework that is formed with peristome at upper surface; Be installed on the optics in the above-mentioned framework; Install in the mode that at least a portion of the peristome of above-mentioned framework is sealed, for the contact glass of original copy mounting; And support periphery, that be higher than other parts of above-mentioned framework upper surface that is formed on the peristome of above-mentioned framework, above-mentioned contact glass is by above-mentioned support part supports, and contacts airtightly with above-mentioned support.
, also can also be provided with the glass strip that reads for to the original copy that utilizes auto document feeder to transport herein, utilize above-mentioned contact glass and above-mentioned glass strip that the peristome of above-mentioned framework is sealed.
In addition, invade the viewpoint in the framework from preventing more reliably foreign matter, the outer circumference end of above-mentioned support is compared with the outer circumference end of contact glass be positioned at the inboard.
In addition, also can erect by incision at above-mentioned support and be formed for rising portions that contact glass is positioned, erect the opening that form from the inboard shutoff of above-mentioned framework by carrying out above-mentioned incision with elastomeric element.
In original document reading apparatus involved in the present invention, utilize support periphery, that be higher than other parts of framework upper surface of the peristome that is formed at continuously the framework upper surface that contact glass is supported, so there is not the danger that deflection deformation occurs such as overlapping because of framework and contact glass, and because contact glass contacts airtightly with support, so can not use the ground such as seal member to prevent that foreign matter from invading in the framework.
Description of drawings
Fig. 1 is the stereogram of an example of expression original document reading apparatus involved in the present invention.
Fig. 2 is the vertical sectional view of the brief configuration of expression original document reading apparatus shown in Figure 1.
Fig. 3 is the partial enlarged drawing of the A section of Fig. 1.
Fig. 4 is that the expression contact glass is with respect to the partial vertical sectional view of the installment state of support.
Fig. 5 is the stereogram of other examples of expression original document reading apparatus involved in the present invention.
Fig. 6 is the vertical sectional view at length direction both ends of glass strip of the original document reading apparatus of Fig. 5.
Fig. 7 is the vertical sectional view of length direction central portion of glass strip of the original document reading apparatus of Fig. 5.
Fig. 8 is the partial sectional view that is formed with the support of rising portions.
Description of reference numerals
2 ... framework; R
1, R
2Original document reading apparatus; 10 ... original copy; 11 ... contact glass; 11a ... the outer circumference end of contact glass; 12a, 12b ... mobile unit (optics); 13 ... imaging apparatus (optics); 20 ... peristome; 21 ... datum level; 22 ... support; 22a ... the outer circumference end of support; 23 ... rising portions; 24 ... opening; 25 ... elastomeric element; 31 ... guide member; 32 ... glass strip.
Embodiment
Below, with reference to the accompanying drawings original document reading apparatus involved in the present invention is described in more detail, but the present invention is not subjected to any restriction of these execution modes.
Stereogram to an example representing original document reading apparatus involved in the present invention in Fig. 1 represents, in Fig. 2 the vertical sectional view of expression brief configuration is represented.For original document reading apparatus R shown in Figure 1
1, in peristome 20 mountings of the quadrangle form of the upper surface that is formed at framework 2 contact glass 11 is arranged.In the inside of framework 2, be provided with the imaging apparatus (optics) 13 that mobile unit described later (optics) 12a, 12b and CCD etc. convert light to the signal of telecommunication.
As shown in Figure 2, the downside at contact glass 11 is provided with the first mobile unit 12a and the second mobile unit 12b.The first mobile unit 12a and the second mobile unit 12b move in the horizontal direction by the power from motor 15 with guide rail with mobile by not shown drive transmission mechanism.
The first mobile unit 12a possesses light source 121, reflecting plate 122 and speculum 123, and the original copy 10 that is positioned on the contact glass 11 from 121 pairs of light sources shines light, with speculum 123 this reverberation is transferred to the second mobile unit 12b.In addition, reflecting plate 122 is the parts that the light of light source 121 exposed to effectively the effect of master copy for improving.This first mobile unit 12a moves to right-hand member from original copy 10 left ends, will transfer to continuously from the reverberation of original copy the second mobile unit 12b.
The second mobile unit 12b possesses speculum 124 and speculum 125, will transmit to the imaging apparatuss such as CCD 13 via lens 12c from the light that the first mobile unit 12a transmission comes.The second mobile unit 12b and the first mobile unit 12a are synchronously mobile, but its translational speed is the first mobile unit 12a half.Because the movement of this second mobile unit 12b is all identical in any position of original copy 10 to the distance of lens 12c from the image surface of original copy 10.Thus, in any position of original copy 10, focus all is the state of polymerization.
And, by the irradiation of lens 12c optically focused on imaging apparatus 13 and convert the signal of telecommunication to.In addition, this example represents by imaging apparatus 13 image transitions of original copy to be become the example of the signal of telecommunication, but also can replace imaging apparatus 13 and photoreceptor is configured in the outside of original document reading apparatus, and expose to the light of the charged photosensitive surface of homogeneous irradiation scioptics 12c, thereby form the electrostatic latent image identical with original image at photosensitive surface.At this moment, the light of scioptics 12c, the glass pane by other setting is radiated on the photoreceptor.
The amplification stereogram of the A part of Fig. 1 shown in Fig. 3.Such as Fig. 1 and shown in Figure 3, the periphery at the peristome 20 of the upper surface that is formed at framework 2 is formed with the support 22 higher than other parts of framework upper surface continuously in the complete cycle scope.
As shown in Figure 4, support 22 exceeds the formation of height H ground than the datum level 21 of framework 2.Upper surface mounting at this support 22 has contact glass 11, contact glass 11 to be supported section's 22 supportings.Like this, be higher than datum level 21 by the contact-making surface that makes contact glass 11 and framework 2, invade in the framework 2 thereby suppress to be deposited in the foreign matters such as the rubbish of upper surface of framework 2 and dust.In addition, can improve framework 2 with respect to the intensity of moment of flexure, thus can be owing to contact glass 11 is supported in distortion such as framework 2 generation deflections.Height H is not limited especially, still generally be preferably the scope of 0.5mm ~ 5mm.In addition, for 22 the angle of inclination from datum level 21 to support, consider ease of processing etc. and suitably determine get final product, but the angle of inclination is formed steep anxious angle that it is just better then to suppress the effect that foreign matter invades in the framework 2.
In addition, the outer circumference end 22a of support 22 is compared with the outer circumference end 11a of contact glass 11 and be positioned at the inboard.Near the datum level 21 that thus, can be suppressed at support 22 is piled up foreign matter.Even from the viewpoint that the tabular surface in the situation lower support section 22 that has deviation aspect part dimension or the assembling also can not expose, the length L 2 between the outer circumference end 11a of the outer circumference end 22a of support 22 and contact glass 11 is preferably the scope of 1mm ~ 5mm.In addition, from avoiding contact glass is applied the viewpoint of local power, the contact length L1 of contact glass 11 and support 22 is preferably the scope of 1mm ~ 10mm.
The stereogram of the execution mode of other of the original document reading apparatus that expression shown in Fig. 5 is involved in the present invention.Original document reading apparatus R shown in this figure
2Have the glass strip 32 that reads for to the original copy that transports by not shown auto document feeder (ADF), the peristome 20 of framework 2 is by glass strip 32 and contact glass 11 sealings.
On the other hand, as shown in Figure 5,3 limits of contact glass 11 and above-mentioned execution mode are formed on support 22 supportings on the framework 2 in the same manner.A limit guided member 31 supportings of the remainder of contact glass 11.Particularly, such as Figure 6 and Figure 7, an above-mentioned limit of contact glass 11 is embedded among the grooving 31b side that is formed on guide member 31, height and the thickness rectangular shape about equally of contact glass 11,31 supportings of contact glass 11 guided members.The original copy positioning element 33 of the reference position when in addition, being illustrated in contact glass 11 surperficial mounting original copy 10 also guided member 31 is fixedly supported upon on the contact glass 11.
In order with high accuracy contact glass 11 to be installed on the framework 2, can the location division be set in framework 2.The partial sectional view of an example of the location division of expression shown in Fig. 8.In a part that is formed on the support 22 on the framework 2, be provided with the wide enlarged portion 221 of other parts of Width.And, cut the rising portions 23 that erects quadrangle form from the end of the peristome side of enlarged portion 221.Make the side of contact glass 11 be connected to this rising portions 23, thereby realize that contact glass 11 is with respect to the location of framework 2.In addition, for incision erects rising portions 23 rear formed openings 24, by from the interior side bonds of framework 2 and opening 23 deep equalities or slightly thick elastomeric element 25 and with its filling.Thus, prevent foreign matter 2 interior intrusions from opening 24 to framework.For erecting wall 23, arrange for a limit of contact glass 11 or plural limit and get final product, preferably for two adjacent limits this is set at least and erects wall 23.In addition, for erecting wall 23, also can one or more be set for a limit of contact glass 11.
Claims (4)
1. original document reading apparatus is characterized in that having:
Be formed with the framework of peristome at upper surface;
Be installed in the optics in the described framework;
Contact glass, it is used for the mounting original copy, and installs in the mode that at least a portion of the peristome of described framework is sealed; And
Support, it is formed on the periphery of the peristome of described framework, and is higher than other parts of described framework upper surface,
Described contact glass is by described support part supports, and contacts airtightly with described support.
2. original document reading apparatus according to claim 1 is characterized in that,
Described original document reading apparatus also has the glass strip that reads for to the original copy that utilizes auto document feeder to transport,
The peristome of described framework is by described contact glass and the sealing of described glass strip.
3. original document reading apparatus according to claim 1 is characterized in that,
The outer circumference end of described support is compared with the outer circumference end of described contact glass and is positioned at the inboard.
4. original document reading apparatus according to claim 1 is characterized in that,
Erect by incision at described support and to be formed for rising portions that contact glass is positioned,
Described original document reading apparatus also has elastomeric element, and this elastomeric element is from the opening of inboard shutoff by carrying out forming after described incision erects of described framework.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011198926A JP5527296B2 (en) | 2011-09-13 | 2011-09-13 | Document reader |
| JP2011-198926 | 2011-09-13 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103002191A true CN103002191A (en) | 2013-03-27 |
| CN103002191B CN103002191B (en) | 2015-11-04 |
Family
ID=47930291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210334717.0A Active CN103002191B (en) | 2011-09-13 | 2012-09-11 | Original document reading apparatus |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5527296B2 (en) |
| CN (1) | CN103002191B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1122459A (en) * | 1994-04-15 | 1996-05-15 | 三田工业株式会社 | Image forming apparatus |
| JP2000341475A (en) * | 1999-05-27 | 2000-12-08 | Ricoh Co Ltd | Reader |
| US20030184818A1 (en) * | 2002-03-29 | 2003-10-02 | Satoshi Mikajiri | Dust-proof structure of image-reading device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0615056U (en) * | 1992-07-28 | 1994-02-25 | 株式会社リコー | Document reader |
| JPH11160814A (en) * | 1997-12-01 | 1999-06-18 | Canon Inc | Image reader |
| JP2003295359A (en) * | 2002-04-05 | 2003-10-15 | Ricoh Co Ltd | Sealing device and image reader |
-
2011
- 2011-09-13 JP JP2011198926A patent/JP5527296B2/en not_active Expired - Fee Related
-
2012
- 2012-09-11 CN CN201210334717.0A patent/CN103002191B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1122459A (en) * | 1994-04-15 | 1996-05-15 | 三田工业株式会社 | Image forming apparatus |
| JP2000341475A (en) * | 1999-05-27 | 2000-12-08 | Ricoh Co Ltd | Reader |
| JP3901872B2 (en) * | 1999-05-27 | 2007-04-04 | 株式会社リコー | Reader |
| US20030184818A1 (en) * | 2002-03-29 | 2003-10-02 | Satoshi Mikajiri | Dust-proof structure of image-reading device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103002191B (en) | 2015-11-04 |
| JP2013062629A (en) | 2013-04-04 |
| JP5527296B2 (en) | 2014-06-18 |
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