CN1325503A - Image reader and image forming device - Google Patents
Image reader and image forming device Download PDFInfo
- Publication number
- CN1325503A CN1325503A CN 99812953 CN99812953A CN1325503A CN 1325503 A CN1325503 A CN 1325503A CN 99812953 CN99812953 CN 99812953 CN 99812953 A CN99812953 A CN 99812953A CN 1325503 A CN1325503 A CN 1325503A
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- China
- Prior art keywords
- pressing plate
- mentioned
- image read
- original copy
- pressing
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/60—Apparatus which relate to the handling of originals
- G03G15/605—Holders for originals or exposure platens
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
- H04N1/10—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using flat picture-bearing surfaces
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
- H04N2201/04—Scanning arrangements
- H04N2201/0402—Arrangements not specific to a particular one of the scanning methods covered by groups H04N1/04 - H04N1/207
- H04N2201/0422—Media holders, covers, supports, backgrounds; Arrangements to facilitate placing of the medium
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
- H04N2201/04—Scanning arrangements
- H04N2201/0402—Arrangements not specific to a particular one of the scanning methods covered by groups H04N1/04 - H04N1/207
- H04N2201/0434—Arrangements not specific to a particular one of the scanning methods covered by groups H04N1/04 - H04N1/207 specially adapted for scanning pages of a book
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Holders For Sensitive Materials And Originals (AREA)
- Exposure Or Original Feeding In Electrophotography (AREA)
Abstract
The present invention relates to an image reader and an image forming device, constructed in a simple arrangement to prevent floating of a document, even if a thin one, by imparting a sufficient pressing force thereto, to improve the operability and durability of a document pressing plate(14), and to make it possible to reduce the weight and thickness of a document holder, including a flexible locking member(147)that, when a first pressure plate(141)and a second pressure plate(142)are folded in the middle, softly supports the two pressure plates(141, 142), thereby elastically lock the two pressure plates(141, 142)together at an angle in a suitable range, thus mitigating the impact force exerted upon locking of the two pressure plates(141, 142).
Description
The present invention relates to have the image read-out and the image processing system of the original manuscript pressing plate of pushing down the original copy on the original copy placement section.
In general, image read-outs such as scanner, or with in the image processing systems such as the printer of electronics camera style etc., duplicating machine, draught machine, facsimile recorder, push down original copy by the original manuscript pressing plate that can be installed in the apparatus main body portion to folding from upper side, original copy is adjacent on manuscript table glass.
For example, original manuscript pressing plate 1 shown in Fig. 8, it is folding formula structure in the what is called that can couple together the pressing plate 2,3 of two bodies rotationally, in this original manuscript pressing plate, one side's the 1st pressing plate 2 can be installed on folding ground by the unillustrated apparatus main body of 4,4 pairs of hinge-units portion, and above-mentioned the 2nd pressing plate 3 can swingingly connect via the rotating side end edge portion as 5 pairs the 1st pressing plates 2 of folding of rotational coupling mechanism in bending.
In addition, rear side (being upper face side among Fig. 8) at above-mentioned the 1st pressing plate 2 and the 2nd pressing plate 3, cover aforementioned folding 5 ground and lay white plate 6, make this white plate 6 be contacted with on the original copy and push down, the bending on the surface of original copy of above-mentioned whereby two pressing plates 2,3 with flexibility.For example, in Fig. 6 of expression situation of the present invention, though be used as the books original copy B of the representative of thick original copy, above-mentioned two pressing plates 2,3 are bent into chevron along the front cover of this books original copy B, original manuscript pressing plate 1 totally be adjacent to original copy B one side.And the power F of armrest pins original manuscript pressing plate 1, improves the being adjacent to property of original copy to original copy glass platform whereby, and prevents the position changing of the relative positions.
Get back to Fig. 8, with the part on above-mentioned the 1st pressing plate 2 and the 2nd pressing plate 3 opposites on, end edge portion one side at the 1st pressing plate 2 is provided with the protrusion engagement portion 7 that constitutes the open-angle limiting mechanism, and at the recessed flute profile retainer 8 of accommodating above-mentioned protrusion engagement portion 7 that is provided with of the 2nd pressing plate 3 one sides, above-mentioned the 1st pressing plate 2 and the 2nd pressing plate 3 are when being bent into chevron as the state of above-mentioned Fig. 6, the front-end edge of above-mentioned protrusion engagement portion 7 partly leans against on the internal face of aforementioned flute profile retainer 8, above-mentioned whereby the 1st pressing plate 2 and the 2nd pressing plate 3 become strong each other arrested state, and two pressing plates of result middle knuckle degree is to each other limited rigidly.
In addition, though do not draw, also have need not be above-mentioned protrusion engagement portion 7 and with the plate type member person of rigidity.At the rigidity plate type member to fixing as welding such as the folding 5 of rotational coupling mechanism or primary screw, the rigidity plate type member is installed on the occasion of folding 5, during with the maximum angle bending, the both sides' of folding 5 swing substrate 5a, 5b become the arrested state of rigidity each other via above-mentioned rigidity plate type member at the 1st pressing plate 2 and the 2nd pressing plate 3.
; in the existing apparatus that has above-mentioned and so on open-angle limiting mechanism; because the middle knuckle degree of the 1st pressing plate 2 and the 2nd pressing plate 3 is defined as a limited angular rigidly; though so in the occasion that is taken as corresponding to the limited angular of the sort of thick original copy shown in Fig. 6; above-mentioned two pressing plates 2,3 can be pushed original copy under the state that is constrained in limited angular each other; but occasion at thin original copy; because above-mentioned two pressing plates 2,3 become the state that freely rotates each other, the pressing operation of original copy can not carry out with enough power.As a result, sometimes to the power that the is adjacent to deficiency of manuscript table glass and original copy floats, can not carry out preferable image and read action.
In addition, when above-mentioned two pressing plates 2,3 are subjected to the restriction of open-angle limiting mechanism,,, become the reason of the permanance reduction of device so its impulsive force makes damages such as bump part or its crack on every side sometimes because these two pressing plates 2,3 clash into each other.Therefore, though also taked the thickness of thickening original manuscript pressing plate or rigidity check plate, enlarge countermeasures such as contact area, but the overall maximization and the weight that all exist original manuscript pressing plate with any countermeasure increase such problem, the operability of original manuscript pressing plate reduces, and then the strike note when limiting sometimes also increases on the contrary.
The present invention makes in view of the above problems, its purpose is that providing a kind of does not cause the maximization of original manuscript pressing plate and increase weight, with simple formation, improve the operability and the permanance of original manuscript pressing plate, and can carry out image read-out and image processing system that preferable image forms.
To achieve these goals, in the described image read-out of claim 1, be to have the original manuscript pressing plate of pushing down the original copy on the original copy placement section that is placed on apparatus main body portion, this original manuscript pressing plate comprises can be to the 1st pressing plate of said apparatus main part folding ground installation, via rotational coupling mechanism can bending ground the 2nd pressing plate that this one the 1st pressing plate is connected, and the image read-out that limits the open-angle limiting mechanism of these the 1st pressing plates and the 2nd pressing plate bending angle to each other, wherein above-mentioned open-angle limiting mechanism comprises the flexible stopper element on the pressing plate that is fixed at least one side's side in above-mentioned the 1st pressing plate and the 2nd pressing plate, and this flexible stopper element is configured to flexibly be contacted with the pressing plate side of the opposing party's side when above-mentioned the 1st pressing plate and the 2nd pressing plate bending.
In addition, in the described image read-out of claim 2, aforesaid right requires 1 described flexible stopper element to be mounted to when the 1st pressing plate and the 2nd pressing plate bending, is contacted with the position relation of the pressing plate or the rotational coupling mechanism of aforementioned the opposing party's side.
And then, in the described image read-out of claim 3, the described flexible stopper element of aforementioned claim 1 comprises the fixed part on the pressing plate that is fixed in a certain side's side in the 1st pressing plate and the 2nd pressing plate, from then on a fixed part is to the laminated spring portion that the pressing plate of the opposing party's side stretches out, and forms to be equivalent to aforementioned two pressing plates gap that rotates freely angular range each other between the pressing plate of above-mentioned laminated spring portion and the opposing party's side.
Moreover in the described image read-out of claim 4, the pressing plate of aforementioned claim 3 described laminated spring portion and the opposing party's side becomes the position relation that is in contact with one another via the interval of stipulating respectively on the direction of being out of shape up and down of laminated spring portion.
On the other hand, form in the device according to inventive images in that claim 5 is described, have aforesaid right requirement 1 or 2 or 3 or 4 described image read-outs.
Here, require in the 1 and 2 described inventions at aforesaid right, because when in the 1st pressing plate and the 2nd pressing plate, rolling over, these two pressing plates are flexibly blocked by flexible stopper element each other, has suitable angular range and two pressing plates become flexible each other arrested state, even thin original copy makes two pressing plates open-angle each other change to big occasion from little occasion to thick books original copy, also original copy is provided enough pressing forces, prevent floating of original copy, so can improve the operability and the permanance of original manuscript pressing plate.
In addition, because the impulsive force during two pressing plate stop is relaxed by flexible stopper element, permanance improves so the operation of original manuscript pressing plate is undisturbedly carried out, and because there is no need to improve the rigidity of original manuscript pressing plate etc., so the weight reduction and the attenuate of original copy press device become possibility, the operability of original manuscript pressing plate improves, and can realize the weight reduction and the attenuate of original copy press device, improves the productivity of device and can carry out preferable image to form.
At this moment,, make the 1st pressing plate and the 2nd pressing plate freely rotate the gap of usefulness, then utilize this freely to rotate the placement that particularly can make original copy and move easily with reliable if be provided with as the described invention of claim 3.
In addition, as the described invention of claim 4, if be taken as the formation that on two sides' deformation direction, is contacted with pressing plate as the laminated spring of flexible stopper element, then become simple formation, and on two sides' up and down of the 1st pressing plate and the 2nd pressing plate wrap direction, obtain above-mentioned effect-effect.
And then, even inventive images according to claim 5 forms device, also obtain same effect-effect.
Fig. 1 is the key diagram of overlooking of the structure when rear side watch original manuscript pressing plate of expression in one embodiment of the present of invention.
Fig. 2 is the side-looking key diagram of the original manuscript pressing plate shown in Fig. 1.
Fig. 3 is that the side-looking key diagram is amplified in the part of the major part of the original manuscript pressing plate shown in the presentation graphs 2.
Fig. 4 is the key diagram of overlooking of the structure when rear side watch original manuscript pressing plate of expression in an alternative embodiment of the invention.
Fig. 5 is that the side-looking key diagram is amplified in the part of the major part of the original manuscript pressing plate shown in the presentation graphs 4.
Fig. 6 is that expression is according to the side-looking key diagram of pushing down the state of books original copy by original manuscript pressing plate of the present invention.
Fig. 7 is the side-looking key diagram of expression as the schematic configuration of the duplicating machine of one of utilization image processing system of the present invention example.
Fig. 8 is the outward appearance perspective key diagram of the structure of the existing original manuscript pressing plate of expression.
Implement optimal morphology of the present invention
Though explain embodiments of the invention based on accompanying drawing below, before this, be the summary that example explanation has the image processing system of image read-out with the electronic photo copiers.
In the electronic photo copiers shown in Fig. 7, on the upper part of apparatus main body 11, be provided as the original copy glass platform 12 of original copy mounting table, and can folding ground install push down the original copy 13 that is placed on this original copy glass platform 12 according to original manuscript pressing plate 14 of the present invention.The structure of relevant original manuscript pressing plate 14 is hereinafter addressed.
Be provided with the scanister (scanning optical apparatus) 15 of composing images reading mechanism in the positive lower part of above-mentioned original copy glass platform 12.These one scan device 15 handlebar scan light shine the illuminating lamp 15a of original copy 13 usefulness on the above-mentioned original copy glass platform 12, and have the catoptron 15b and the projecting lens 15c that guide to from the reflected light of original copy 13 on the image carrier hereinafter addressed (below be designated as photosensitive drums) 16.
In addition, in the lower side of above-mentioned scanister 15, photosensitive drums 16 is being provided with turning clockwise as shown in the figure.Around this photosensitive drums 16, disposing successively along the rotation driving direction of photosensitive drums 16 and to make the charged equably charger of this photosensitive drums 16 17, carbon dust is supplied to by the reflected light from above-mentioned scanister 15 is exposed on photosensitive drums 16 display 18 that the electrostatic latent image that forms carries out video picture, be fitted in the separatory separating charger 20 of recording chart after carbon dust on the above-mentioned photosensitive drums 16 of making of paper path looks like to be transferred to the transfer printing charger 19 of recording chart one side and makes transfer printing midway, and the cleaning device 22 etc. that remains in the carbon dust on the photosensitive drums 16 after the removals-recovery discharge transfer printing.
And then, outlet side in the paper path 23 of extending to the export department of apparatus main body 11 from above-mentioned transfer printing charger 19 and separating charger 20, disposing with heating power and making the fixing fixing device 24 of usefulness of carbon dust picture on the recording chart, from then on row's paper transport path 26 extends to row's paper disc 25 of the export department that is installed in apparatus main body 11 in the export department of a fixing device 24, on this row's paper transport path 26, near the export department of above-mentioned fixing device 22, disposing exit roller 27.In addition, below paper path 23, constitute sheet feed section ground the paper feeding cassette 30 of depositing the cutting recording chart is set.
The export department on the diagram right side in above-mentioned paper feeding cassette 30 is disposing and is sending the paper feed roller 31 that is placed on the recording chart in this paper feeding cassette 30, is extending transport path 32 from the paper feed roller 31 of this paper feeding cassette 30 to the transfer area of above-mentioned photosensitive drums 16.Near the transfer area in this transport path 32, be provided with the registration roller 33 that synchronously recording chart is passed out to transfer area with image forming course.Upstream side at the throughput direction of registration roller 33 is disposing the alignment sensor (not shown) that monitors that the paper feeding state is used.
Structure with regard to the original copy press device in one embodiment of the present of invention describes below.
The detailed structure of above-mentioned original manuscript pressing plate 14 is shown in Fig. 1, Fig. 2 and Fig. 3.Original manuscript pressing plate 14 in the present embodiment is to have folding formula structure in the what is called of the 1st pressing plate 141 and the 2nd pressing plate 142, and above-mentioned the 1st pressing plate 141 can be installed in to folding said apparatus main body 11 (with reference to a Fig. 7) side via a pair of hinge-unit 143,143 of the cardinal extremity edge part that is located at the 1st pressing plate 141.
In addition, in the ora terminalis part of the swing side of the opposite side of above-mentioned the 1st pressing plate 141, the 2nd pressing plate 142 can swingingly connect via the double spread 144,144 as rotational coupling mechanism in bending.In the rear side of these the 1st pressing plates 141 and the 2nd pressing plate 142, just, cover aforementioned folding 144,144 ground and lay white plate 145 in the face of on the side of aforementioned original copy glass platform 12 sides, 145 pairs of aforementioned original copy glass platforms 12 of above-mentioned white plate directly contact-leave.Above-mentioned white plate 145 constitutes by pasting white sheet material on the surface of the elastic substrate that constitutes in for example sponge etc., is fixed in the pressing plate side by adhesive member etc.
Though as is generally known above-mentioned each folding 144 is each end edge portion of a pair of swing substrate 144a, 144b to be docked each other around axle rotate connectionist freely, but above-mentioned substrate 144a, the 144b of respectively swinging is by 146 pairs of outstanding respectively fastening fixing of the cylindrical fixing lug boss 141a of portion, 142a that are arranged on above-mentioned the 1st pressing plate 141 and the 2nd pressing plate 142 of a plurality of primary screws, whereby shown in double dot dash line among Fig. 3, above-mentioned the 1st pressing plate 141 and the 2nd pressing plate 142 can couple together to upside and downside both direction respectively each other with being bent into chevron and paddy shape.
At this moment, as shown in Figure 2, limiting by the upside open-angle limiting mechanism and the downside open-angle limiting mechanism of the following stated respectively between above-mentioned the 1st pressing plate 141 and the 2nd pressing plate 142 to the maximum open-angle θ 1 of upside with to the maximum open-angle θ 2 of downside.
At first, upside open-angle limiting mechanism is made up of constituting of contacting with each other of each end face of above-mentioned the 1st pressing plate 141 and the 2nd pressing plate 142, more particularly, two face-off end face 141b of these two the 1st pressing plates 141 and the 2nd pressing plate 142 coupling part each other, 142b forms inclined contact surface, the face-off end face 141b of the 1st pressing plate 141 1 sides forms obtuse-angulate inclined contact surface, and the face-off end face 142b of the 2nd pressing plate 142 1 sides forms acutangulate inclined contact surface, these two inclined contact surface 141b, 142b contacts under the maximum open-angle state of the above-mentioned paddy shape that becomes the maximum open-angle θ 1 of upside each other, two the 1st pressing plates 141 and the 2nd pressing plate 142 become arrested state whereby, are constrained to can not surpass its ground and open.
Though the maximum open-angle θ 1 of the upside of this moment depend on above-mentioned the 1st pressing plate 141 and the 2nd pressing plate 142 two inclined contact surface 141b, 142b to each other the relative tilt angle and leave distance, but in the present embodiment, consider the operability of original manuscript pressing plate 14, above-mentioned maximum open-angle θ 1 sets in 10 °～30 ° scopes.
On the other hand, downside open-angle limiting mechanism has the flexible check plate 147 in folding of being installed in 144.That is to say, elastic plate members such as corrosion resistant plate about this flexible check plate 147 usefulness thickness 0.5 mm～1mm are made, the fixed part 147a of this flexible check plate 147 overlaps common fastening be fixed of ground by aforementioned primary screw 146 to the fixed part of a side's of above-mentioned folding 144 swing substrate 144a, and from this fixed part 147a be bent into the 147b of laminated spring portion that stepped appearance extends from two oscillating deck 144a, 144b of above-mentioned folding 144 leave a little downwards and parallel substantially coincidences extension.That is to say that the 147b of laminated spring portion of this flexible check plate 147 can support to elastic deformation under cantilever-shaped free flexible state.
At this moment, " a " set at interval between two swing substrate 144a, the 144b of the 147b of laminated spring portion of above-mentioned flexible check plate 147 and folding 144 for, above-mentioned the 1st pressing plate 141 and the 2nd pressing plate 142 freely rotate when being bent into chevron downwards by the amount that is equivalent to this gap " a ", and the free fore-end that becomes the above-mentioned laminated spring 147b of portion flexibly is contacted with the position relation of swing substrate 144b one side of folding 144.And above-mentioned two pressing plates 141,142 are each other further downwards during bending, and the 147b of laminated spring portion elastic deformation becomes two pressing plates 141,142 each other by its counter-force formation of stop flexibly.
Though the maximum open-angle θ 2 of above-mentioned two pressing plates 141,142 of this moment downside each other depends on the spring constant of above-mentioned interval " a " and the 147b of laminated spring portion, the interval in the present embodiment but " a " sets for example smaller value in the 1mm left and right sides for, become under the smaller state of two pressing plates 141,142 downside open-angle each other, the free fore-end of the above-mentioned laminated spring 147b of portion is contacted with the formation of swing substrate 144b one side.That is to say, set above-mentioned two pressing plates 141,142 for and flexibly keeping with smaller open-angle each other, and when reaching above-mentioned maximum open-angle θ 2, produce the spring constant that can not become near the stopping power of rigidity above its open-angle.
In such an embodiment, when the folding, these two pressing plates 141,142 are flexibly blocked by flexible stopper element 147 each other in the 1st pressing plate 141 and the 2nd pressing plate 142, and two pressing plates 141,142 become flexible arrested state with suitable angular range each other.Thereby, even, also original copy is provided enough pressing forces (with reference to the label F among Fig. 6), prevent floating of original copy in the inconsistent occasion of suitable angle from thin original copy to two pressing plates of thick books original copy 141,142 open-angle each other.
In addition, because the impact during two pressing plate 141,142 stop is relaxed by flexible stopper element 147, so the operation of original manuscript pressing plate 14 is undisturbedly carried out, permanance improves.And then because there is no need to improve the rigidity of original manuscript pressing plate 14 grades as always, so the weight reduction of original copy press device and attenuate become possibility, the operability of original manuscript pressing plate 14 improves.
On the other hand, in the original manuscript pressing plate 34 according to another embodiment shown in Fig. 4 and Fig. 5, being located at a pair of hinge-unit 343,343 on the basic end edge portion of the 1st pressing plate 341 becomes the structure that the original manuscript pressing plate 34 that is installed on the aforementioned means main body 11 (with reference to Fig. 7) can folding.
On the bending end edge portion of above-mentioned the 1st pressing plate 341, the outstanding setting horizontal wide rotation base station 344 that stretches out to the 2nd pressing plate 342 1 sides, the front end expansion section of the protruding axis 344a that is provided with highlightedly from the plate width direction both ends of the surface of this rotations base station 344 push away in the dead eye of the vertical floor 342a perforation formation that is passed in above-mentioned the 2nd pressing plate 342 widely and fix.Above-mentioned protruding axis 344a rotation keeps freely, and above-mentioned whereby the 1st pressing plate 341 and the 2nd pressing plate 342 can swingingly couple together in bending.
At this moment, the maximum open-angle θ 1 of the upside between above-mentioned the 1st pressing plate 341 and the 2nd pressing plate 342 and the maximum open-angle θ of downside 2 (with reference to Fig. 2) limit by an open-angle limiting mechanism of hereinafter addressing.
That is to say that the open-angle limiting mechanism in the present embodiment has the flexible check plate 347 of dual-purpose upside and downside open-angle limiting mechanism.At these flexible check plate 347 places, its fixed part 347a is by fixing primary screw 346 fastening bending ora terminalis parts that are fixed in the 1st pressing plate 341, and the 347b of laminated spring portion stretches out to the 2nd pressing plate 342 1 sides from the 347a of said fixing portion stepped appearance bending ground.
And then horizontal wide shape ground connects the angle limits aperture 348 that forms the above-mentioned laminated spring 347b of portion of income on the cross rib board 342c of above-mentioned the 2nd pressing plate 342, and the above-mentioned laminated spring 347b of portion passes in this angle limits aperture 348 with the sliding fit state.Forming predetermined gap respectively between the lower edge on these 347b of laminated spring portion and the angle limits aperture 348.And, above-mentioned the 1st pressing plate 341 and the 2nd pressing plate 342 by the amount that is equivalent to these gaps along the vertical direction during bending the free fore-end of the above-mentioned laminated spring 347b of portion be contacted with angle limits aperture 348 on lower edge ground elastic deformation, become two pressing plates 341,342 each other by its counter-force formation of stop flexibly.
Though maximum open-angle θ 1, the θ 2 of above-mentioned two pressing plates 341,342 above-below direction each other of this moment depends on the respectively interval between the last lower edge of the above-mentioned laminated spring 347b of portion and angle limits aperture 348 respectively, spring constant with the 347b of laminated spring portion, but the interval in the present embodiment is set smallerly, the free fore-end that becomes the above-mentioned laminated spring 347b of portion be contacted with under the smaller state of two pressing plates 341,342 open-angle up and down each other angle limits aperture 348 on the formation of lower edge.That is to say that above-mentioned two pressing plates 341,342 flexibly keep with smaller open-angle, and set for each other when reaching above-mentioned maximum open-angle θ 1, θ 2, produce near the stopping power of rigidity so that do not become spring constant above its open-angle.
In such an embodiment, except the effect of the foregoing description, the bending of both direction up and down that is limited in of the middle knuckle degree of above-mentioned the 1st pressing plate 341 and the 2nd pressing plate 342 is flexibly carried out in moving, and obtains good operability and permanance whereby.And, because become simple formation, so the low cost of obtaining and good productivity.
Though above the present invention is not limited to the foregoing description based on the specifically clear invention of being made by the present inventor of embodiment, all distortion are possible in the scope that does not break away from its spirit certainly.For example, though in the various embodiments described above, use laminated spring as flexible stopper element, the present invention is not limited to this, can be used for flexible stopper element to various elastic components such as volute springs.
In addition, the scope of application of the present invention is not limited to above-mentioned duplicating machine, is applicable to the image processing system of other electronic photography modes of document board certainly too.
Claims (5)
1. an image read-out has the original manuscript pressing plate of pushing down the original copy on the original copy placement section that is placed on apparatus main body portion,
This original manuscript pressing plate comprises can be to the 1st pressing plate of said apparatus main part folding ground installation, via rotational coupling mechanism can bending ground the 2nd pressing plate that this one the 1st pressing plate is connected, and the image read-out that limits the open-angle limiting mechanism of these the 1st pressing plates and the 2nd pressing plate bending angle to each other, it is characterized in that, wherein
Above-mentioned open-angle limiting mechanism comprises the flexible stopper element on the pressing plate that is fixed at least one side's side in above-mentioned the 1st pressing plate and the 2nd pressing plate,
This flexible stopper element is configured to flexibly be contacted with the pressing plate side of the opposing party's side when above-mentioned the 1st pressing plate and the 2nd pressing plate bending.
2. the described image read-out of claim 1 is characterized in that, wherein aforementioned flexible stopper element is mounted to when the 1st pressing plate and the 2nd pressing plate bending, is contacted with the position relation of the pressing plate or the rotational coupling mechanism of aforementioned the opposing party's side.
3. the described image read-out of claim 1, it is characterized in that, wherein aforementioned flexible stopper element comprise on the pressing plate that is fixed in a certain side's side in the 1st pressing plate and the 2nd pressing plate fixed part and from then on a fixed part to laminated spring portion that the pressing plate of the opposing party's side stretches out
Between the pressing plate of above-mentioned laminated spring portion and the opposing party's side, form and be equivalent to aforementioned two pressing plates gap that rotates freely angular range each other.
4. the described image read-out of claim 3 is characterized in that, wherein the pressing plate of aforementioned panels spring portion and the opposing party's side becomes the position relation that is in contact with one another via the interval of stipulating respectively on the direction of being out of shape up and down of laminated spring portion.
5. an image processing system is characterized in that, wherein has claim 1 or 2 or 3 or 4 described image read-outs.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP325878/1998 | 1998-10-31 | ||
| JP32587898A JP4257755B2 (en) | 1998-10-31 | 1998-10-31 | Image reading apparatus and image forming apparatus |
| JP325878/98 | 1998-10-31 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1325503A true CN1325503A (en) | 2001-12-05 |
| CN100437347C CN100437347C (en) | 2008-11-26 |
Family
ID=18181632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB998129534A Expired - Fee Related CN100437347C (en) | 1998-10-31 | 1999-11-01 | Image reader and image forming device |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP4257755B2 (en) |
| CN (1) | CN100437347C (en) |
| WO (1) | WO2000026722A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100421447C (en) * | 2004-12-28 | 2008-09-24 | 佳能株式会社 | Image reading apparatus |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4603732B2 (en) * | 2001-02-21 | 2010-12-22 | キヤノン株式会社 | Image reading device |
| JP6129096B2 (en) * | 2014-02-21 | 2017-05-17 | 京セラドキュメントソリューションズ株式会社 | Image reading device |
| JP7452087B2 (en) | 2020-02-26 | 2024-03-19 | 株式会社アドヴィックス | Vehicle braking control device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60113224A (en) * | 1983-11-24 | 1985-06-19 | Canon Inc | Original press-contacting device |
| US4636065A (en) * | 1983-11-25 | 1987-01-13 | Canon Kabushiki Kaisha | Molded article with flexible hinge |
| JP2703289B2 (en) * | 1988-10-31 | 1998-01-26 | 株式会社東芝 | Image forming device |
| DE4344322A1 (en) * | 1993-12-23 | 1995-06-29 | Siemens Ag | Sintered contact material |
| JPH0954373A (en) * | 1995-08-17 | 1997-02-25 | Mita Ind Co Ltd | Structure for coupling part of half opening/closing type document holding plate |
| JPH1039429A (en) * | 1996-07-26 | 1998-02-13 | Ricoh Co Ltd | Fixing member for movable parts |
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1998
- 1998-10-31 JP JP32587898A patent/JP4257755B2/en not_active Expired - Fee Related
-
1999
- 1999-11-01 WO PCT/JP1999/006084 patent/WO2000026722A1/en active Search and Examination
- 1999-11-01 CN CNB998129534A patent/CN100437347C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100421447C (en) * | 2004-12-28 | 2008-09-24 | 佳能株式会社 | Image reading apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2000026722A1 (en) | 2000-05-11 |
| JP4257755B2 (en) | 2009-04-22 |
| JP2000137302A (en) | 2000-05-16 |
| CN100437347C (en) | 2008-11-26 |
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