CN100429919C - Image forming apparatus - Google Patents
Image forming apparatus Download PDFInfo
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- CN100429919C CN100429919C CNB2006101593495A CN200610159349A CN100429919C CN 100429919 C CN100429919 C CN 100429919C CN B2006101593495 A CNB2006101593495 A CN B2006101593495A CN 200610159349 A CN200610159349 A CN 200610159349A CN 100429919 C CN100429919 C CN 100429919C
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Abstract
An image forming apparatus includes: a platen glass face provided in an apparatus body and having a reading area for reading a document set under a stationary condition thereof and an automatic reading area for reading the document while the document is guided past over this automatic reading area by an automatic document feeding mechanism, a cover means mounting said automatic document feeding mechanism and attached to the apparatus body via a pivot shaft to be pivoted for selectively opening/closing the platen glass face, and a reading guide attached to the cover means and configured for guiding the document in opposition to the automatic reading area when the cover means is closed. The reading guide has a first end portion close to said pivot shaft attached to be movable to/away from said cover means and a second end portion away from the pivot shaft attached to be immovable to/away from the cover means and an urging means for urging the first end portion of the reading guide toward said automatic reading area.
Description
The cross-reference of association request
The application requires the priority at the same applicant's of Japan's application on September 28th, 2005 JP2005-282576, and the whole of this application quote in this application as a reference.
Technical field
The present invention relates to image processing system, have reading the zone and the original copy of being induced by the auto document conveying mechanism being located on the apparatus main body by the regional contact glass face that reads automatically that reads of the original copy that reads under remaining static, the lid member that above-mentioned auto document conveying mechanism is installed utilize swinging operation can the state of the above-mentioned contact glass face of change over switch under, by being pivotally mounted on the said apparatus main body, when making above-mentioned lid member be in closed condition, relative and guide the guide that reads of original copy to be installed on the above-mentioned lid member with the above-mentioned zone of reading automatically.
Background technology
In the prior art, as first example of this image processing system (after, abbreviate the first prior art example as), have read guide with the state that does not move relative to the lid member stationary device (opening the 2002-189319 communique) with reference to the spy.
In addition, as second example of the image processing system of prior art (after, abbreviate the second prior art example as), have read as shown in figure 13 guide 4b by the afterburning member 11 that possesses respectively at both ends relative to lid member 4 with the whole far and near state device (opening the 2001-235909 communique) mounted thereto that moves freely with reference to the spy.
In order on the contact glass face, to induce original copy with the auto document conveying mechanism, while it is correctly read by the above-mentioned zone of reading automatically, need make contact glass and read guide in the overall with scope of the left and right sides of original copy, to be in the state that keeps same intervals, particularly can not apply uneven resistance original copy.
According to the above-mentioned first prior art example, because will cover member relatively fixedly reads guide, so in order to keep above-mentioned contact glass and the suitable position relation that reads guide, need keep the precision of both position relations highly, make that the installation site of covering the relative apparatus main body of member is a normal condition.
But if consider pivot or constitute the dimensional accuracy etc. of each parts around it, it is very difficult then in fact all keeping same intervals ground to install any part of apparatus main body (contact glass) and lid member (reading guide).Therefore, have the problem of the phenomenon that the part (particularly pivot side) that occurs reading guide easily floats from contact glass.
On the other hand, according to the above-mentioned second prior art example, utilizing afterburning member under contact glass side integral body is pressed afterburning state, to install owing to read guide from the lid member, therefore under the state of closing cap member, become the above-mentioned attitude of guide on the contact glass face that read easily, for example, state the auto document conveying mechanism in the use and reading the zone automatically when reading original copy, also can whole guarantee suitable gap.Yet in contrast, when the active force of above-mentioned afterburning member was big, this active force will cover member pushed to the contact glass top, the result, and existence is that end far away, center is brought to the danger of floating with the pivot.Therefore, there are the following problems: promptly do not using the auto document conveying mechanism, making original copy be positioned under static state that above-mentioned on the above-mentioned contact glass face read the zone and when reading, and lid member come-up, thus be easy to generate the not good problem that reads.
In addition, the guide that reads of the above-mentioned second prior art example is to use Screw to covering the structure that member side is installed.Therefore, not only the assembling operation of device bothers, but also need be used for the instrument of screw.In addition, read guide in case, then can not dismantle usually and read guide by screw, so, even for example change the thickness or the material of unusable paper, also can only act on identical active force to this paper.
Summary of the invention
Therefore, the object of the present invention is to provide a kind of addressing the above problem, when using and not using the auto document conveying mechanism, can carry out reading of original copy with suitable state in any occasion, and can carry out the image processing system of the assembling of device easily.
The feature structure of image processing system of the present invention is, possess: the contact glass face, be located on the apparatus main body, while have reading the zone and making the original copy of inducing read the zone automatically of the original copy that reads under remaining static by what read by the auto document conveying mechanism; The lid member carries above-mentioned auto document conveying mechanism, is installed on the said apparatus main body to utilize state that swinging operation can the above-mentioned contact glass face of change over switch should cover member by pivot; And read guide, be installed on the above-mentioned lid member, relative and guide original copy with the above-mentioned zone of reading automatically when making above-mentioned lid member be in closed condition, to install relative to far and near the moving freely of above-mentioned lid member near the first end side of above-mentioned pivot, to can not distance install movably apart from the above-mentioned relatively lid member of above-mentioned pivot the second end side far away, and possess above-mentioned first end side at the approaching above-mentioned afterburning member that applies active force on the regional direction that reads automatically.
In the image processing system of this structure, the first end side that reads guide is installed relative to covering far and near the moving freely of member, and be provided with the first end side at the approaching afterburning member that applies active force on the regional direction that reads automatically.Therefore, cover member and be in closed condition if make, then can be by enough active forces of necessity of reading the zone automatically and acting on being guided original copy effectively by the first end side that reads guide.On the other hand, though apply resistance torque in the first end side effect of reading guide, but because this first end side is near pivot, so compare with the gravity torque that is acted on the contact glass face by the center of gravity of lid member, the above-mentioned size that applies resistance torque is enough little.
In addition, the second end side that reads guide being covered member relatively can not distance install movably.Therefore, even the lid member is in closed condition, the active force that applies that reads the zone is not automatically actively worked yet by the second end side that reads guide.So, do not apply resistance torque in fact in the second end side.
Therefore, when reading the original copy that is positioned at inactive state on the contact glass face (static original copy read mode), above-mentioned gravity torque is considerably beyond the above-mentioned resistance torque that applies, so the lid member can be kept along the state of contact glass face.
On the other hand, use the auto document conveying mechanism, also read guide as mentioned above and can guide original copy effectively, do not read not good phenomenon so can not produce paperboard etc. reading (auto document read mode) when carrying out the reading of original copy on the zone automatically.
In addition, in the image processing system of this structure, do not need to be used to prevent to cover the fine setting of member come-up.In order always suitably to carry out reading of original copy, need satisfy following two conditions: i.e. " gravity torque that is acted on by the center of gravity of lid member on the contact glass face applies resistance torque big (first condition) than acting on to read on the guide "; And " when carrying original copy, act on the power that makes progress that reads on the guide than by the afterburning member of the first end side that reads guide to reading guide " to reading the active force little (second condition) that the zone applies automatically.First condition is the condition of trying to achieve under static original copy read mode, and second condition is the condition of trying to achieve under the auto document read mode.The resistance torque that applies in the above-mentioned first condition is created on the position of pivot near the lid member.Therefore, enough increase the applying resistance torque and also can not become big so of first end side even will read the active force of afterburning member of the first end side of guide.Therefore, do not need accurately to set the active force of the afterburning member of first end side, simply be set at enough big active force and get final product.So the active force of the afterburning member by closing the first end side is enough big, can satisfy above-mentioned second condition.Like this, in this structure, can set enough big active force, prevent to cover the member come-up so can not finely tune effectively in order to satisfy above-mentioned second condition.And because to act on the active force that reads on the guide enough big, so the height in the space passed through of original copy (that is, read on guide and the contact glass face the clearance gap that reads the zone automatically) does not change yet.Therefore, can smoothly, conscientiously and clearly carry out reading automatically of original copy.
In image processing system of the present invention, the conveying lid of above-mentioned auto document conveying mechanism also can switchably be set on above-mentioned lid member, and the relieving mechanism that discharges the active force that above-mentioned afterburning member produces by the switching manipulation interlock that covers with this conveyings is set.
According to image processing system of the present invention, be provided with by with the switching manipulation interlock of the conveying lid that is located at the auto document conveying mechanism that covers on the member, thereby discharge the relieving mechanism of the active force that afterburning member produces.
For example, afterburning member is a helical spring, and this helical spring is in compression usually because of the compression member that constitutes relieving mechanism.Have, compression member is covered interlock with conveying again.
When in the auto document conveying mechanism paperboard taking place, carry lid if open, then with this opening operation interlock, compression member is roughly removed simultaneously to helical spring compression.Thus, discharge by reading guide to reading the active force of zone effect automatically, thereby can easily remove the paper that in the auto document conveying mechanism, blocks.
In image processing system of the present invention, also can the above-mentioned guide that reads be installed on the above-mentioned lid member by link, this link has the above-mentioned relatively removable guide side of guide installation portion and the removable lid side of the relative above-mentioned lid member installation portion of reading.
According to the image processing system of this structure, be installed in when covering on the member will reading guide, cover on the member if link is located at earlier, as long as then will read on the guide side installation portion that guide is installed in link.For example,, and the cooperation pawl is set, then, just can installs by only in above-mentioned mating holes, embedding a this simple disposable operation of above-mentioned cooperation pawl in the link side if earlier mating holes is set reading the guide side.
And, will read guide from lid member when dismounting, above-mentioned cooperation pawl need only read the guide slip and getting final product by waiting under the state of pulling out and extracting from mating holes with finger, making.
Like this, be installed in the structure of covering on the member, then in the dismounting operation of reading guide, do not need specific purpose tool or masterful technique etc. if will read guide by link, thus can be simply and assemble effectively or maintenance etc.
In addition, link has the removable lid side of relative lid member installation portion, so also link self can be replaced by other parts.Thus, the also thickness of the paper that can use according to image processing system or material etc., the afterburning member that will have the optimal modulus of elasticity link of packing into is perhaps suitably selected himself material of link.
The feature structure of image processing system of the present invention is, possess: the contact glass face, be located on the apparatus main body, while have reading the zone and making the original copy of inducing read the zone automatically of the original copy that reads under remaining static by what read by the auto document conveying mechanism; The lid member carries above-mentioned auto document conveying mechanism, is installed on the said apparatus main body to utilize state that swinging operation can the above-mentioned contact glass face of change over switch should cover member by pivot; And read guide, be installed on the above-mentioned lid member, relative and guide original copy with the above-mentioned zone of reading automatically when making above-mentioned lid member be in closed condition, to install respectively relative to far and near the moving freely of above-mentioned lid member near the first end side of above-mentioned pivot and apart from above-mentioned pivot the second end side far away, and possess the first afterburning member and the second afterburning member that above-mentioned first end side and above-mentioned the second end side are applied active force near the above-mentioned direction that reads the zone automatically, set the active force of the above-mentioned first afterburning member and the above-mentioned second afterburning member, make when making above-mentioned lid member be in closed condition, act on above-mentioned read guide on the whole to apply resistance torque littler than the gravity torque that is acted on the above-mentioned contact glass face by the center of gravity of above-mentioned lid member, and act on above-mentioned the second end side apply resistance torque than act on above-mentioned first end side to apply resistance torque little.
In the image processing system of this structure, install respectively relative to covering far and near the moving freely of member reading the first end side of guide and the second end side, and be respectively equipped with first end side and the second end side near reading the first afterburning member and the second afterburning member that applies active force on the regional direction automatically.At this moment, cover member and be in closed condition, read the zone relatively automatically and apply active force reading guide if make, then can be by by reading guide to enough active forces of reading zone effect necessity automatically and guide original copy effectively.On the other hand, set the active force of the first afterburning member and the second afterburning member, though make that effect applies resistance torque on first end side that reads guide and the second end side both sides, but compare with the gravity torque that acts on the contact glass face by the center of gravity of lid member, act on read guide on the whole to apply resistance torque less, and act on above-mentioned the second end side apply resistance torque than act on above-mentioned first end side to apply resistance torque little.
Set if so, then under static original copy read mode, the lid member can be kept along the state of contact glass face, and under the auto document read mode, reading guide can apply the state of active force and guide original copy effectively reading the zone automatically by keeping.
In addition, under the auto document read mode, result from the transporting velocity of paper or thickness sometimes and in action, apply power upwards reading guide.But as long as this power that makes progress is no more than afterburning member to reading guide to reading the active force that the zone applies automatically, reading guide just can be from reading the zone come-up automatically.Under the situation that is this structure, textural at it, the resistance torque that applies that produces in the first end side that reads guide is difficult to become big, can make the active force of afterburning member of first end side enough big thus, thereby can set above-mentioned active force, make it fully surpass the above-mentioned power that makes progress.Therefore, the height in the space passed through of original copy (that is, read on guide and the contact glass face the clearance gap that reads the zone automatically) does not change.
Like this, in the image processing system of this structure, under static original copy read mode and any one pattern of auto document read mode, can not produce and read not good phenomenon, can smoothly, conscientiously and clearly carry out reading of original copy.
In image processing system of the present invention, the conveying lid of above-mentioned auto document conveying mechanism also can switchably be set on above-mentioned lid member, and be provided with by carrying the switching manipulation interlock of lid, thereby discharge the relieving mechanism of the active force that the above-mentioned first afterburning member and the above-mentioned second afterburning member produced with this.
According to image processing system of the present invention, be provided with by with the switching manipulation interlock of the conveying lid that is located at the auto document conveying mechanism that covers on the member, thereby discharge the relieving mechanism of the active force that the first afterburning member and the above-mentioned second afterburning member produced.
For example, the first afterburning member and the second afterburning member are helical spring, and this helical spring is in compressive state usually because of the compression member that constitutes relieving mechanism.Have, compression member is covered interlock with conveying again.
When in the auto document conveying mechanism paperboard taking place, carry lid if open, then with this opening operation interlock, compression member is roughly removed simultaneously to helical spring compression.Thus, discharge and read guide, can easily remove the paper that in the auto document conveying mechanism, blocks reading the active force of zone effect automatically.
In image processing system of the present invention, also can the above-mentioned guide that reads be installed on the above-mentioned lid member by link, this link has the above-mentioned relatively removable guide side of guide installation portion and the removable lid side of the relative above-mentioned lid member installation portion of reading.
According to the image processing system of this structure, be installed in when covering on the member will reading guide, cover on the member if earlier link is located at, as long as then will read on the guide side installation portion that guide is installed in link.For example,, and the cooperation pawl is set, then, just can installs by only in above-mentioned mating holes, embedding a this simple disposable operation of above-mentioned cooperation pawl in the link side if earlier mating holes is set reading the guide side.
In addition, will read guide, and above-mentioned cooperation pawl need only read the guide slip and gets final product by waiting under the state of pulling out and extracting from mating holes with finger, making from lid member when dismounting.
Like this, be installed in the structure of covering on the member, then in the dismounting operation of reading guide, do not need specific purpose tool or masterful technique etc. if will read guide by link, thus can be simply and assemble effectively or maintenance etc.
In addition, link has the removable lid side of relative lid member installation portion, so also link self can be replaced by other parts.Thus, the thickness or the material of the paper that can use according to image processing system, the afterburning member that will have the optimal modulus of elasticity link of packing into is perhaps suitably selected himself material of link.
Description of drawings
Fig. 1 is the stereogram that presentation video forms device.
Fig. 2 is the vertical view of opening under the state of lid member of image processing system.
Fig. 3 is the schematic diagram that presentation video forms the section of the auto document conveying mechanism that the master of device looks.
Fig. 4 is that key diagram is looked on the left side of image processing system.
Fig. 5 is the stereogram of major part of the installment state that reads the relative frame of guide of expression first execution mode.
Fig. 6 is the details drawing that reads the first end side of guide.
Fig. 7 is the details drawing that reads the second end side of guide.
Fig. 8 is the major part stereogram of the installment state that reads the relative frame of guide of expression second execution mode.
Fig. 9 is the major part stereogram of the installment state that reads the relative frame of guide of expression the 3rd execution mode.
Figure 10 (a) be from the top, Figure 10 (b) be from beneath to the stereogram of link.
Figure 11 is the cutaway view of link.
Figure 12 is the schematic diagram of section that expression possesses the auto document conveying mechanism of relieving mechanism.
Figure 13 is that key diagram is looked on the left side of image processing system of the afterburning state that read guide of image processing system under the state of closing cap member of expression prior art example.
Embodiment
Below based on the description of drawings embodiments of the present invention.In addition, use in the accompanying drawings with prior art example and represent same or suitable part with the part of same symbolic representation.
Fig. 1, Fig. 2 are the figure of an execution mode of expression image processing system of the present invention, as this image processing system G, photocopier, scanning machine, facsimile machine etc. are for example arranged, constitute and to read in image by following dual mode: promptly, make and read in original copy 1 is positioned at apparatus main body 2 with inactive state the reading on the regional 3A of 3 of contact glasses, under the state of closing cap member 4 to original copy 1 irradiates light, thereby read in; Perhaps, be equipped on placement original copy 1 on the auto document conveying mechanism 5 that covers on the member 4 under the state of closing cap member 4, induce original copy 1 and make it pass through irradiates light on one side by the regional 3B that reads automatically of auto document conveying mechanism 5 on one side, thereby read in to 3 of contact glasses.
In addition, though not expression in the drawings accommodates below contact glass 3 and reads in above-mentioned original copy 1 and make the various mechanisms of its photographic fixing on copy paper.
Above the said apparatus main body 2, be provided with above-mentioned contact glass 3 as the original copy placement part.As shown in the figure, contact glass 3 is divided into two parts, and wherein, the part that occupies most of area reads regional 3A and constitutes as above-mentioned, form can the mounting various sizes original copy 1.
In addition, with above-mentioned one side of reading regional 3A in abutting connection with and guarantee that forming the original copy 1 of being induced by above-mentioned auto document conveying mechanism 5 can pass through for the part of elongated shape reads regional 3B automatically and constitutes as above-mentioned.
As shown in Figure 4, above-mentioned lid member 4 is installed on the said apparatus main body 2 with the state that utilizes 3 of the above-mentioned contact glasses of the convertible switch of swinging operation by pivot 6.
In addition, along above-mentioned regional 3A and the above-mentioned axis direction that reads regional 3B automatically of reading in abutting connection with direction setting pivot 6.Now, the below of the vertical view of Fig. 2 is " front " of device, and the top of vertical view is " back side " of device, and right side, the left side of vertical view is respectively " right side ", " left side ".After, each is abbreviated as " front ", " back side ", " right side ", " left side ".
Therefore, utilize above-mentioned pivot 6 to be installed on the apparatus main body 2 by the marginal portion that makes above-mentioned rear side, the marginal portion of above-mentioned face side dominated by hand also moves up and down it, thereby lid member 4 swings up and down around above-mentioned pivot 6.And, owing to be to cover member 4,, just can cover the whole zone of above-mentioned contact glass 3, thereby can be in closed condition so cover member 4 and swing downwards by making to constitute than the big slightly area of plane of above-mentioned contact glass 3.
In addition, lid member 4 below by possess with cover covering part 4a that the above-mentioned state that reads regional 3A forms with to read relative the reading guide 4b of state setting of regional 3B automatically and constitute (with reference to Fig. 1) with above-mentioned.Reading guide 4b covers member 4 relatively and can give prominence to with retreating and to install.At this, " can give prominence to and retreat " is meant the state that can make at least a portion that reads guide 4b give prominence to or retreat into the lower position that covers member 4 from the lower position of lid member 4.
As shown in Figure 3, above-mentioned auto document conveying mechanism 5 possesses: the conveying original copy location division 5a of the stratiform that is equipped with respectively up and down at the central portion of lid member 4; Original copy receiving portion 5b; And by the interior combination that is loaded on the roller that covers on the member 4, band, transducer, motor etc., the original copy transfer member 5c that above-mentioned original copy 1 is induced along the original copy transport path R that represents with arrow among the figure.
And, with the above-mentioned state that reads on the part that guide 4b is positioned at above-mentioned original copy transport path R the above-mentioned guide 4b that reads is installed.
As shown in the figure, this reads guide 4b and is made of the light sheet material that cross section shape forms roughly " U " word shape, play following effect: promptly, by below it, guiding the original copy 1 that on above-mentioned original copy transport path R, moves by above-mentioned auto document conveying mechanism 5, make it not from the surface come-up that reads regional 3B automatically of above-mentioned contact glass 3, guarantee the precision that reads when image reads.
The lid member 4 that reads guide 4b is installed is in closed condition if make, then read guide 4b near the end of pivot 6 (after, as first end) the 4ba side to apart from pivot 6 end far away (after, as the second end) in the scope of 4bb side, a whole or part that reads guide 4b near the direction that reads regional 3B automatically on effect active force is arranged.So, apply resistance torque in the effect of reading on the guide 4b by this active force.On the other hand, since the center of gravity of lid member 4 and on 3 of contact glasses effect gravity torque is arranged.At this, be set at the above-mentioned resistance torque that applies littler than above-mentioned gravity torque.As long as the magnitude relationship of this moment is set up, then reading under the occasion (static original copy read mode) that is positioned at the original copy 1 on 3 of the contact glasses with inactive state, lid member 4 can be kept along the state of 3 of contact glasses.That is, being positioned at the following covering part 4a that covers member 4 is adjacent to contact glass 3 faces by original copy 1.Therefore, can not produce by the not good phenomenon that reads of pushing generations such as deficiency, can be conscientiously and clearly carry out reading of original copy 1.
On the other hand, using auto document conveying mechanism 5 reading automatically under the occasion that reads (auto document read mode) of carrying out original copy 1 on the regional 3B, make cover member 4 be in closed condition the time, reading guide 4b by above-mentioned active force also becomes afterburning state (pressed state) to reading regional 3B automatically.Therefore, by by reading guide 4b, just can guide original copy 1 effectively to reading the necessary enough active forces of regional 3B effect automatically.
In addition, under the auto document read mode, because of causing in action, the transporting velocity of paper or thickness applies power upwards sometimes to reading guide 4b.But as long as this power that makes progress is no more than above-mentioned active force, then reading guide 4b just can be from reading regional 3B come-up automatically.In the present embodiment, textural at it, the resistance torque that applies that produces in the first end 4ba side that reads guide 4b is difficult to increase, and can fully increase the active force of the first end 4ba side that reads guide 4b thus, so can set above-mentioned active force, make it fully surpass the above-mentioned power that makes progress.Therefore, the height in the space passed through of original copy (that is, read on 3 of guide 4b and the contact glasses the clearance gap that reads regional 3B automatically) does not change.In order to form above-mentioned clearance gap, for example below reading guide 4b, be provided with near the two ends to form at interval and use protuberance 4e more effective.
Therefore, if under this pressed state, carry out reading automatically of original copy 1 continuously, then can not produce paperboard etc. and read not good phenomenon, can smoothly, conscientiously and clearly carry out reading automatically of original copy 1.
Below, specify and read the execution mode that guide 4b covers the installment state of member 4 relatively.
First execution mode at first is described.
Fig. 5 is the stereogram of major part of installment state that guide 4b covers the frame F of member 4 relatively that reads of expression first execution mode.Fig. 6 and Fig. 7 are the details drawings that reads first end 4ba side and the second end 4bb side of guide 4b.
In this first execution mode, the first end 4ba side that reads guide 4b is installed relative to covering member 4 far and near moving freely, and is provided with the afterburning member that first end 4ba is applied active force on the approaching direction that reads regional 3B automatically.The second end 4bb side is covered member 4 relatively and can not distance be installed movably.
As shown in Figure 6, reading on the first end 4ba of guide 4b, be formed with, and in the relative portion of above-mentioned frame F, be formed with above-mentioned first and cooperate pawl 9 along the projected direction embedding first fastening hole 10 freely along the first outstanding cooperation pawl 9 of its short transverse.So, cooperate pawl 9 to embed this first fastening hole 10 upward from the below by making above-mentioned first, read guide 4b and just fix with the state that relative frame F can relatively move up and down.And, between first end 4ba and frame F, be provided with by frame F is guaranteed the anti-power of work and will read guide 4b pushes helical spring (being equivalent to afterburning member) 11 from reinforcing to contact glass 3 sides.
On the other hand, as shown in Figure 7, reading on the second end 4bb of guide 4b, be formed with along the second outstanding cooperation pawl 8 of the length direction that reads guide 4b, in the relative portion of the frame F that covers member 4b, be formed with above-mentioned second and cooperate pawl 8 simultaneously along the projected direction embedding second fastening hole 7 freely.So, cooperate pawl 8 to embed these second fastening holes 7 by making above-mentioned second, read guide 4b and just can cover member 4 relatively and can not distance fix movably.In addition, can make the size in the second fastening hole 7 cooperate the size of pawl 8 big slightly, thereby the second end 4bb side that allows to read guide 4b is covered slightly wobbling action of member 4 relatively than second.Like this, cooperate the situation that slightly has the space between the pawl 8 and the second fastening hole 7 also to be contained in this specification described " fixing " second.
As above fixedly under the state of the second end 4bb side, even lid member 4 is in closed condition, can be by the second end 4bb side to not reading the positive active force of regional 3B effect automatically yet.Therefore, do not produce in fact in the second end 4bb side and apply resistance torque.
In first execution mode that as above has first end 4ba and the second end 4bb, the first end 4ba side that reads guide 4b moves installation freely relative to covering member 4 distances, and is provided with the helical spring 11 as afterburning member.Therefore, cover member 4 and be in closed condition, then, can guide original copy effectively by by reading guide 4b to reading enough active forces of regional 3B effect necessity automatically if make.In addition, though apply resistance torque in the first end 4ba side effect of reading guide 4b, but because the nearly pivot 6 of this first end 4ba side joint, so above-mentioned gravity torque on applying the size of resistance torque and being acted on 3 of contact glasses by the center of gravity of lid member 4 is compared enough little.Therefore, under the state of closing cap member 4, about moment around pivot 6, by lid member 4 weight produced around the moment M1 of closing direction considerably beyond by above-mentioned helical spring 11 active force produced around the moment M2 that opens direction (with reference to Fig. 4), so no matter lid member 4 reads regional 3A or is reading regional 3B automatically above-mentioned, can be in the suitable state along contact glass 3.
Therefore, according to the image processing system of first execution mode, under static original copy read mode, lid member 4 can be kept along the state of 3 of contact glasses.That is, be positioned at the following covering part 4a that covers member 4 and be adjacent to contact glass 3 faces, so can be conscientiously and clearly carry out reading of original copy 1 by original copy 1.On the other hand, under the auto document read mode, reading guide 4b becomes pressed state to reading regional 3B automatically.Therefore, by reading guide 4b to reading the necessary enough active forces of regional 3B effect automatically, thereby can guide original copy 1 effectively.
In addition, in the image processing system of present embodiment, do not need to be used to prevent to cover the fine setting of member 4 come-ups.In order always suitably to carry out reading of original copy 1, need satisfy following two conditions: i.e. " gravity torque that acts on 3 of contact glasses by the center of gravity of lid member 4 applies resistance torque big (first condition) than acting on to read on the guide 4b "; And " when carrying original copy, act on the power that makes progress that reads on the guide 4b and read guide 4b to reading the active force little (second condition) that regional 3B applies automatically " than 11 pairs of helical springs by the first end 4ba side that reads guide 4b.First condition is the condition of trying to achieve under static original copy read mode, and second condition is the condition of trying to achieve under the auto document read mode.The resistance torque that applies of above-mentioned first condition occurs in and covers member 4 apart from the nearer position of pivot 6.Therefore, fully increase the applying resistance torque and also can not become big so of first end 4ba side even will read the active force of helical spring 11 of the first end 4ba side of guide 4b.Therefore, do not need accurately to set the active force of the helical spring 11 of first end 4ba side, simply be set at enough big active force and get final product.So the active force of the helical spring 11 by making first end 4ba side is enough big, can satisfy above-mentioned second condition.Like this, in the present embodiment, can set enough big active force, prevent to cover member 4 come-ups so can not finely tune effectively for satisfying above-mentioned second condition.And, because to act on the active force that reads on the guide 4b enough big, so the height in the space that original copy 1 passes through (that is, read on 3 of guide 4b and the contact glasses the clearance gap that reads regional 3B automatically) does not change yet.Therefore, can smoothly, conscientiously and clearly carry out reading automatically of original copy 1.
In addition, in order to form above-mentioned clearance gap, formation protuberance 4e at interval is set in the bottom of reading guide 4b.Thus, reading guide 4b and reading the space that is formed for the automatic transport paper between the regional 3B automatically.
Like this,, under static original copy read mode and any one pattern of auto document read mode, can not produce and read not good phenomenon, can smoothly, conscientiously and clearly carry out reading of original copy 1 according to the image processing system of first execution mode.
Second execution mode then is described.
Fig. 8 is the stereogram of major part of installment state that guide 4b covers the frame F of member 4 relatively that reads of expression second execution mode.
In this second execution mode, read the first end 4ba side of guide 4b and the second end 4bb side and install respectively, and first helical spring (being equivalent to the first afterburning member) 11a and second helical spring (the being equivalent to the second afterburning member) 11b that first end 4ba side and the second end 4bb side is applied active force on the approaching direction that reads regional 3B automatically is set respectively relative to covering member 4 far and near moving freely.The concrete formation that the first end 4ba of guide 4b and the second end 4bb be installed on the frame F that covers member 4 is identical with the formation of the first end 4ba side of explanation in the above-described first embodiment with reading.
In this second execution mode, the active force of the following setting first helical spring 11a and the second helical spring 11b: promptly, make when covering member 4 and being in closed condition, act on read guide 4b on the whole to apply resistance torque littler than the gravity torque that is acted on 3 of the contact glasses by the center of gravity of lid member 4, and act on the second end 4bb side apply resistance torque than act on first end 4ba side to apply resistance torque little.
Set if so, then under static original copy read mode, lid member 4 can be kept along the state of 3 of contact glasses.That is, be positioned at the following covering part 4a that covers member 4 and be adjacent to contact glass 3 faces, so can be conscientiously and clearly carry out reading of original copy 1 by original copy 1.On the other hand, under the auto document read mode, reading guide 4b becomes pressed state to reading regional 3B automatically.Therefore, by by reading guide 4b, can guide original copy 1 effectively to reading the necessary enough active forces of regional 3B effect automatically.In addition, under the auto document read mode, act on the power that makes progress that reads on the guide 4b and can not become above-mentioned bigger problem like that because of what the transporting velocity of paper or thickness caused.In addition, use protuberance 4c, then reading guide 4b and reading the space that is formed for the automatic transport paper between the regional 3B automatically if formation at interval is set in the bottom of reading guide 4b.
Like this,, under static original copy read mode and any one pattern of auto document read mode, can not produce and read not good phenomenon, can smoothly, conscientiously and clearly carry out reading of original copy 1 according to the image processing system of second execution mode.
The following describes the 3rd execution mode.
Fig. 9 is the stereogram of major part of installment state that guide 4b covers the frame F of member 4 relatively that reads of expression the 3rd execution mode.
In the 3rd execution mode, the first end 4ba side that reads guide 4b to be installed relative to covering member 4 far and near moving freely, the second end 4bb side is covered member 4 relatively can not distance install movably.But, afterburning member is not set reading on the guide 4b.That is to say, the 3rd execution mode to read guide 4b identical with the device that reads on the guide 4b behind the helical spring 11 that omits first end 4ba side at first execution mode shown in Figure 5.
When lid member 4 is in open mode, reads guide 4b and make first end 4ba owing to deadweight becomes from the outstanding slightly state of the lower position (position of covering part 4a) of lid member 4.If make and cover member 4 and be in closed condition, the first end 4ba side that then reads guide 4b contacts with reading regional 3B automatically, keeping under the constant state of this contact condition, retreats into the lower position that covers member 4.On the other hand, the on off state of the second end 4bb side that reads guide 4b and lid member 4 irrespectively is in the roughly the same level of lower position with lid member 4, so cover member 4 and be in closed condition and then read regional 3B automatically and contact with above-mentioned if make.Therefore, cover member 4 and be in closed condition, then read guide 4b and retreat into the lower position that covers member 4 from above-mentioned outstanding state if make, and become first end 4ba side and the second end 4bb side in pairs with read regional 3B state of contact automatically.At this, use protuberance 4c if formation at interval is set in the bottom of reading guide 4b, then reading guide 4b and reading the space that is formed for the automatic transport paper between the regional 3B automatically.
In addition, between lid member 4 and contact glass 3, except that the power that deadweight produced, do not act on any power, so lid member 4 is kept along the state of 3 of contact glasses by lid member 4.
Therefore,, under static original copy read mode and any one pattern of auto document read mode, can not produce and read not good phenomenon, can smoothly, conscientiously and clearly carry out reading of original copy 1 according to the image processing system of the 3rd execution mode.
And, in the present embodiment,, therefore need not be used to prevent to cover the fine setting of member 4 come-ups because afterburning member self is not set.Therefore, the effect of reading automatically of original copy 1 can be carried out easily, also maintenance activity etc. can be simplified simultaneously.Have, apparatus structure becomes simply again, thereby has also reduced manufacturing cost.
Below link is described.
Make following formation also can: promptly install when reading guide 4b, the second end 4bb side of the 4b that reads guide of the first end 4ba side that reads guide 4b of above-mentioned first execution mode～the 3rd execution modes or above-mentioned second execution mode be installed by link 20 at relative lid member 4.That is, constitute link 20 in addition, and cover member 4 relatively and read guide 4b can dismounting.
Figure 10 (a) be from the top, Figure 10 (b) be from beneath to the stereogram of link 20.In addition, Figure 11 is the cutaway view of link 20.
As shown in figure 10, link 20 is set, to read guide 4b by this link 20 and be installed in and cover on the member 4, this link 20 has as the guiding side that reads the removable guide side of guide 4b installation portion relatively and cooperates pawl 20b and lid side cooperation pawl 20a as relative lid member 4 removable lid side installation portions.
Reading the installation steps that guide 4b covers member 4 relatively is at first to connect link 20 on lid member 4.This connection is located at the first fastening hole 30a that covers member 4 sides by the lid side cooperation pawl 20a embedding that makes link 20 and carries out.At this moment, also can between lid member 4 and link 20, suitably sandwich elastomeric elements such as helical spring is installed.Then, cooperate on the pawl 20b reading the guiding side that guide 4b is installed in link 20.This installation is located at the installation of reading on the guide 4b by the guiding side cooperation pawl 20b embedding that makes link 20 and carries out with fastening hole 30b.These operations can both be finished by simple once-through operation.
On the other hand, when guide 4b is read in the dismounting of lid member 4, implement to get final product with above-mentioned opposite step.Particularly, above-mentioned guiding side is being cooperated pawl 20b read guide 4b and slide downwards by waiting under the state of pulling out and extracting with fastening hole 30b with finger, making from installation.Thus, reading guide 4b breaks away from from link 20.From lid member 4 dismounting links 20 time, also carry out same operation.
Like this, be installed in the structure of covering on the member 4 by link 20, then in the dismounting operation of reading guide 4b, do not need specific purpose tool or masterful technique etc. so long as will read guide 4b, can be simply and assemble effectively or maintenance etc.
And link 20 is to cover member 4 relatively and read the removable parts of guide 4b, so when guide 4b is read in 4 dismounting of lid member relatively, link 20 self can be replaced by other parts.Thus, according to the thickness or the material of the paper that uses in the image processing system, the link 20 of the helical spring with optimal modulus of elasticity can being packed into is perhaps suitably selected himself material of link 20.
In addition, though link 20 can adopt in first end 4ba side that reads guide 4b and the second end 4bb side both sides, but only adopt link 20, do not use the common structure of link 20 also to have no relations and the opposing party made a side of first end 4ba side or the second end 4bb side.
Below relieving mechanism is described.
In above-mentioned first execution mode with afterburning member and second execution mode, also the conveying lid 40a of auto document conveying mechanism 5 can switchably be set at lid on the member 4, and the relieving mechanism 40 of carrying the active force of the switching manipulation interlock that covers 40a, the afterburning member of release with this is set.This relieving mechanism 40 is used for the processing of paperboard.
Figure 12 is the schematic diagram of section that expression possesses the auto document conveying mechanism 5 of relieving mechanism 40.The compression member 40c that comes compression helical spring 11 by the interlinked mechanism 40b that is made of wire and pulley is installed carrying to cover on the 40a.This is carried and to cover 40a, interlinked mechanism 40b and compression member 40c together as relieving mechanism 40.Interlinked mechanism 40b also can be made of linkage component etc.
As described below, above-mentioned interlinked mechanism 40b can make to carry and cover 40a and compression member 40c interlock.
Cover under the common user mode that 40a closes compression member 40c compression helical spring 11 carrying.Like this, if paperboard takes place in auto document conveying mechanism 5, the operator opens to carry covers 40a, and then the wire of interlinked mechanism 40b stretches upward, and compression member 40c is moved upward.Thus, releasing is to the compression of helical spring 11.So under this state, release acts on the active force that reads automatically on the regional 3B by reading guide 4b, thereby can easily remove the paper that blocks in auto document conveying mechanism 5.
After finishing paperboard removal processing, if closing to carry, the operator covers 40a, then the wire of interlinked mechanism 40b returns and compression member 40c is moved downwards.At this moment, also can on compression member 40c, be provided with and return with spring (not shown) so that compression member 40c moves downwards energetically.Thus, helical spring 11 is compressed parts 40c compression once more, reads regional 3B relatively automatically and becomes afterburning state thereby read guide 4b.
Other execution mode below is described.
(1) above-mentioned afterburning member is not limited to the helical spring 11 that illustrates in execution mode before, also can be to use for example structure of leaf spring or elastic caoutchouc etc., in a word so long as can get final product to the member that contact glass 3 sides apply active force with reading guide 4b.Comprise these, be referred to as afterburning member.
(2) the above-mentioned guide 4b that reads is not limited to the shape or the material that illustrate in execution mode before, also can constitute with other shape or material.
(3) above-mentioned image processing system is not limited to apparatus main body 2 that illustrates or the structure of covering member 4 in execution mode before, can change shape or material etc.
In addition, as mentioned above, marked Reference numeral with the accompanying drawing contrast for convenience, but the present invention is not confined to the structure of accompanying drawing because of this mark.And, in the scope that does not break away from main points of the present invention, certainly implement in every way.
Claims (6)
1. an image processing system is characterized in that,
Possess: the contact glass face is located on the apparatus main body, while have reading the zone and making the original copy of being induced by the auto document conveying mechanism read the zone automatically by what read of the original copy that reads under remaining static; The lid member carries above-mentioned auto document conveying mechanism, is installed on the said apparatus main body to utilize state that swinging operation can the above-mentioned contact glass face of change over switch should cover member by pivot; And read guide, be installed on the above-mentioned lid member, relative and guide original copy with the above-mentioned zone of reading automatically when making above-mentioned lid member be in closed condition, to install relative to far and near the moving freely of above-mentioned lid member near the first end side of above-mentioned pivot, to can not distance install movably apart from the above-mentioned relatively lid member of above-mentioned pivot the second end side far away, and possess above-mentioned first end side at the approaching above-mentioned afterburning member that applies active force on the regional direction that reads automatically.
2. image processing system according to claim 1 is characterized in that,
On above-mentioned lid member, switchably be provided with the conveying lid of above-mentioned auto document conveying mechanism, and be provided with the relieving mechanism that discharges the active force that above-mentioned afterburning member produces by the switching manipulation interlock that covers with this conveyings.
3. image processing system according to claim 1 is characterized in that,
By link the above-mentioned guide that reads is installed on the above-mentioned lid member, this link has the above-mentioned relatively removable guide side of guide installation portion and the removable lid side of the relative above-mentioned lid member installation portion of reading.
4. an image processing system is characterized in that,
Possess: the contact glass face is located on the apparatus main body, while have reading the zone and making the original copy of being induced by the auto document conveying mechanism read the zone automatically by what read of the original copy that reads under remaining static; The lid member carries above-mentioned auto document conveying mechanism, is installed on the said apparatus main body to utilize state that swinging operation can the above-mentioned contact glass face of change over switch should cover member by pivot; And read guide, be installed on the above-mentioned lid member, relative and guide original copy with the above-mentioned zone of reading automatically when making above-mentioned lid member be in closed condition, to install respectively relative to far and near the moving freely of above-mentioned lid member near the first end side of above-mentioned pivot and apart from above-mentioned pivot the second end side far away, and possess the first afterburning member and the second afterburning member that above-mentioned first end side and above-mentioned the second end side are applied active force near the above-mentioned direction that reads the zone automatically, set the active force of the above-mentioned first afterburning member and the above-mentioned second afterburning member, make when making above-mentioned lid member be in closed condition, act on above-mentioned read guide on the whole to apply resistance torque littler than the gravity torque that is acted on the above-mentioned contact glass face by the center of gravity of above-mentioned lid member, and act on above-mentioned the second end side apply resistance torque than act on above-mentioned first end side to apply resistance torque little.
5. image processing system according to claim 4 is characterized in that,
On above-mentioned lid member, switchably be provided with the conveying lid of above-mentioned auto document conveying mechanism, and be provided with the relieving mechanism that discharges the active force that is produced by the above-mentioned first afterburning member and the above-mentioned second afterburning member by switching manipulation interlock with this conveying lid.
6. image processing system according to claim 4 is characterized in that,
By link the above-mentioned guide that reads is installed on the above-mentioned lid member, this link has the above-mentioned relatively removable guide side of guide installation portion and the removable lid side of the relative above-mentioned lid member installation portion of reading.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005-282576 | 2005-09-28 | ||
| JP2005282576 | 2005-09-28 | ||
| JP2005282576 | 2005-09-28 |
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| Publication Number | Publication Date |
|---|---|
| CN1941830A CN1941830A (en) | 2007-04-04 |
| CN100429919C true CN100429919C (en) | 2008-10-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2006101593495A Expired - Fee Related CN100429919C (en) | 2005-09-28 | 2006-09-27 | Image forming apparatus |
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| CN (1) | CN100429919C (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP6098060B2 (en) * | 2012-07-24 | 2017-03-22 | ブラザー工業株式会社 | Image processing device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06263272A (en) * | 1993-03-15 | 1994-09-20 | Canon Inc | Automatic sheet feeder and recorder |
| JP2001235909A (en) * | 2000-02-24 | 2001-08-31 | Murata Mach Ltd | Automatic sheet carrying device |
| JP2002171385A (en) * | 2000-12-05 | 2002-06-14 | Nisca Corp | Image reader |
| JP2002189319A (en) * | 2000-12-20 | 2002-07-05 | Ricoh Co Ltd | Automatic document feeder, image reader and image forming device |
| CN1470959A (en) * | 2002-06-24 | 2004-01-28 | �����ɷ� | Automatic manuscript transferning device |
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2006
- 2006-09-27 CN CNB2006101593495A patent/CN100429919C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06263272A (en) * | 1993-03-15 | 1994-09-20 | Canon Inc | Automatic sheet feeder and recorder |
| JP2001235909A (en) * | 2000-02-24 | 2001-08-31 | Murata Mach Ltd | Automatic sheet carrying device |
| JP2002171385A (en) * | 2000-12-05 | 2002-06-14 | Nisca Corp | Image reader |
| JP2002189319A (en) * | 2000-12-20 | 2002-07-05 | Ricoh Co Ltd | Automatic document feeder, image reader and image forming device |
| CN1470959A (en) * | 2002-06-24 | 2004-01-28 | �����ɷ� | Automatic manuscript transferning device |
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| CN1941830A (en) | 2007-04-04 |
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