CN1955853A - Sheet conveying apparatus and image forming apparatus - Google Patents
Sheet conveying apparatus and image forming apparatus Download PDFInfo
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- CN1955853A CN1955853A CN 200610164613 CN200610164613A CN1955853A CN 1955853 A CN1955853 A CN 1955853A CN 200610164613 CN200610164613 CN 200610164613 CN 200610164613 A CN200610164613 A CN 200610164613A CN 1955853 A CN1955853 A CN 1955853A
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- swing arm
- swing
- rotary body
- sheet material
- pressurization
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Abstract
A sheet conveying apparatus includes a pair of rollers; a conveying unit that conveys a sheet by holding in a nip portion, the nip portion formed by a pair of rollers as a rotating unit such that one of the pair of rollers contacts and pressurizes the other roller; a pressure lever of which a fixed edge is oscillatably supported by a immovable portion, the pressure lever including an oscillating edge, the oscillating edge of the pressure lever being capable of contacting a supporting shaft of the pressure roller; an oscillating lever of which a fixed edge is oscillatably supported by the pressure lever in the oscillating edge side, the oscillating lever including a plurality of oscillating edges around the fixed edge; and an elastic unit that is latched between the fixed edge of the oscillating lever and the immovable portion, and biases the oscillating lever towards the one of the pair of rollers. A position of the fixed edge of the oscillating lever, from among positions at which an end of the elastic unit is latched on, is capable of being changed in a state of being deviated from a position before oscillating based on an oscillating position of the oscillating lever separately from an oscillation of the fixed edge.
Description
Technical field
The present invention relates to a kind of sheet material conveyor and image processing system, more particularly, relate to sheet material and carry the right pressing mechanism of employed roller.
Background technology
In recent years, as everyone knows, in the image processing system that adopts electrofax mode or electrostatic means,, then utilize the toner of supplying with from display that electrostatic latent image is carried out visualization processing if same relatively charged sub-image supporting body is that photoreceptor forms and the corresponding electrostatic latent image of picture signal.
The toner picture that carries on the photoreceptor on being transferred to recording chart as a kind of recording medium etc. after, utilize fixing device, by be heated, plus-pressure and in photographic fixing under the effect of melting, soaking on sheet material P.As specially permit No. 3243143 record, have hot-rolling mode but disclose fixing device as the backer roll of the warm-up mill of fixing member and the clamping feeding recordable paper that is oppositely arranged with it.
In the hot-rolling mode, the record as the spy opens clear 59-67568 communique and the clear 62-164077 communique of Te Kai forms the clamping part by the mutual clamping feeding sheets of roller P.Because this clamping part will be supplied with sheet material P from the heat of warm-up mill on one side at one side clamping sheet material P in course of conveying, so require efficiently to the feeding sheet materials heat.Therefore, utilize bigger pressure will form the mutual crimping of roller of clamping part.
Open in the clear 59-67568 communique the spy, be provided with: pressure rod, its be can with the tilting member of the bearing butt of backer roll; Swing arm, itself and this pressure rod is supported coaxially, and utilizes the relation of being located at the spring between swing arm and the pressure rod and forming mutual traction; The relieving rod that can swing, distolateral being oppositely arranged of swing of itself and swing arm, and be provided with and engage the hook portion that breaks away from the part of its swinging end, when the swinging end of swing arm is subjected to displacement according to the swing state of relieving rod, the spring that utilization hangs over this swinging end makes the bearing contact separation of pressure rod and backer roll, thereby the pressurized state and the pressurization disarm state of backer roll are set respectively.
Open in the clear 62-164077 communique the spy and to disclose following structure, promptly, on the support unit that can swing, backer roll is set, at the distolateral swing arm that to swing that is provided with of the swing of support unit, it is to make the driver part of backer roll to the fixing roller contact separation, near the swing fulcrum of swing arm, collude the spring that hangs with the pressured usefulness of elasticity, in this structure, swing position according to swing arm, the colluding of above-mentioned spring hang the position with the swing fulcrum shaft as top point (dead point) to a side or opposite side displacement, the swing position that keeps swing arm thus, and backer roll maintained and position that the position of fixing roller crimping or crimping are removed.
In addition, Te Kaiping 9-101696 communique, spy open the 2003-287973 communique and the spy opens in the clear 59-067568 communique, when above-mentioned pressure contact portion is stopped up by sheet material, open the side cover of the image processing system that fixing device is housed, the user just can remove the sheet material of obstruction.At this moment, well-known, remove for the sheet material that makes the user easily will be blocked in pressure contact portion, be provided with according to the opening action of side cover and pressing mechanism that backer roll is removed the pressurization of fixing roller.
Explain, Figure 24 A is the figure of the pressurized state of the special pressing mechanism of opening the disclosed fixing device of clear 59-67568 communique of expression, shown in the Reference numeral of present embodiment use, utilize pressure rod 303 to push backer roll bearing 316 with the backer roll 302 of fixing roller 301 relative butts.Pressure rod 303 is supported swingably by the rotating shaft 310 that is supported on fixed part, with backer roll bearing 316 butts.Swing arm 304 is supported with pressure rod 303 swingably via bolster 307.In addition, on swing arm 304, an end utilization card shotpin 309 of spring 305 and near be hooked on the bolster 307 colluding of swinging end 306A side are hung T1 place, position.
The other end of spring 305 is hooked on fixed part and colludes and hang position T2 and go up and launch, and forms near the shape by avoiding interfering with bolster 307 bolster 307 that departs from extend through swing arm 304 sides under the state of spring center.
Shown in Figure 24 B, it is the swinging end at center with bolster 307 that swing arm 304 has a plurality of, promptly is so-called two strands of shapes.Be provided with the card shotpin 309 of above-mentioned spring 305 near the swinging end 306A the bolster 307 of two bursts of portions, two gangs of shape swinging end 306A that run through swing arm 304 fix an end of spring 305.In addition, that utilizes that clamping bar 311 had promotes self-swinging end 306B to the line part that swinging end 306A extends by pressure roller 313, and the swing arm fulcrum post 312 that can engage disengaging thus with the hook portion 328 that is positioned at clamping bar 311 pinching ends is arranged on the swing arm 304.
Touch by swing arm fulcrum post 312 and pressure rod 303 and to limit swing arm 304 to the rotation of the left side of position shown in Figure 24 A.Thus, prevent the situation that the plus-pressure to backer roll 302 is difficult to play a role.
Though do not illustrate, for example, clamping bar 311 is formed in the employed image processing system shown in Figure 1 100 of present embodiment on the side to be opened/closed cover 202, when side cover 202 is closed, utilize with swinging end 306B and swinging end 306A between the state of the relative swing arm fulcrum post 312 that is had by pressure roller 313 promotion swing arms 304 of line part under, the displacement of restriction swing arm 304, in addition, when side cover 202 is opened, by the hook portion 328 that is positioned at clamping bar 311 front ends is engaged with swing arm fulcrum post 312, and cooperating opening of side cover 202, pulling swing arm fulcrum post 312 makes swing arm 304 rotations.
Figure 24 A forms clamping part N in order to make backer roll 302 be crimped on fixing roller 301, push backer roll 302 and make the nip state of periphery of fixing roller 301 of its a part of periphery.Like this, in the swing process of swing arm 304, when colluding the bolster 307 of hanging position and swing arm 304 at the two ends of spring 305 and being listed on the straight line, the elongation of spring 305 is maximum M1.At this moment, when maximum tension takes place, if the dead point that is positioned on the straight line with each several part is the border, cross spring 305 when colluding of swing arm 304 sides hung position T1 to a certain direction, (Figure 25 represents with Reference numeral M2 then to be retracted to the state of also lacking than the elongation that is arranged in the dead-centre position by spring 305, its elongation is shorter than the elongation under the situation of dead point) time tractive force, produce with this position and be application point, be the moment of fulcrum with bolster 307.
Under situation about the pressurized state of backer roll 302 being removed from above-mentioned state, by opening the side cover 202 of image processing system 100, the hook portion 328 that is positioned at the front end of relieving rod 320 spurs the swing arm fulcrum post 312 of swing arms 304 sides.Thus, remove displacement restriction, and allow its clockwise rotation swing arm 304.
In Figure 24 A, by making position that colluding on the swing arm 304 hang spring 305 (for simplicity, in Figure 24 A, represent) with Reference numeral T1, collude on the side opposite with swing arm 304 sides hang spring 305 the position (for simplicity, in Figure 24 A, represent with Reference numeral T2) and the position of bolster 307 be located along the same line, be under the situation of so-called dead-centre position, spring 305 becomes maximum tension, and then if begin to rotate from this state, contraction corresponding to spring 305, weakening of tension force, by act on the recovery of shape power on the backer roll 302 from fixing roller 301, the position of the bolster 307 that swing arm 304 is had (for simplicity, represent with Reference numeral P1 among Figure 24 A) displacement counterclockwise in Figure 24 A, make pressure rod 303 to direction rotation away from the bearing 316 of backer roll 302.Thus, removed the pressed state of 302 pairs of fixing rollers 301 of backer roll.
But, in this structure, have following problem.That is, because in order to make the position displacement of turning axle 310 in the pressure rod 303, the rotation amount of swing arm 304 must be bigger, so according to the difference of the position of the member that disposes periphery, owing to the interference with above-mentioned parts is difficult to obtain sufficient rotation amount.Therefore, if spring 305 keeps the state of insufficient contraction, then can not obtain pressurization and remove necessary rotation amount.
Figure 25 is illustrated in the figure that the spy opens the pressurization disarm state of the pressing mechanism of disclosed fixing device in the clear 59-67568 communique.In Figure 25, the parts identical with Figure 24 A and 24B are represented with identical Reference numeral, and are omitted its explanation.As shown in figure 25, open and remove under the situation of pressurization, just solved sheet material and carried freely, be so-called blocking problem at side cover 202.Though close side cover 202 after having solved blockage problem, following of the state that also exists swing arm 304 not reset fully covers 202 problems of closing with the side.
In order to remove pressurization to backer roll 302, if the rotation quantitative change of swing arm 304 is big, then the swing arm fulcrum post 312 of swing arm 304 sides is from having the motion track of the hook portion 328 that engages renunciative relieving rod 320 sides to leave with it, in addition, from also the leaving to the line part of swinging end 306A of relieving rod 320 sides from motion track by pressure roller 313 by the swinging end 306B of relative swing arm 304 sides of pressure roller 313.
At this moment, even owing to close side cover 202, line part between the swinging end of swing arm 304 sides do not push yet relieving rod 320 sides by pressure roller 313, so not only can not set the pressurized state of backer roll 302, also have the problem of not setting pressurized state under the state that side cover 202, swing arm 304 do not reset only closing carelessly.Thus, utilize by pressure roller 313 the swinging end 306B of swing arm 304 to be gone into required power to backer roll 302 side pressures and increase gradually.Thus, the resistance when side cover 202 is closed increases gradually, the problem that the operability when 202 shutoff operation is covered in the generation side reduces.
The purpose of present embodiment is in view of above-mentioned existing sheet material clamping convey device, particularly on one side the clamping feeding sheets carries out problem in the sheet material conveyor of fixing device etc. that other operations are the photographic fixing operation on one side, resistance when closing by reducing side cover 202 can improve the operability when setting pressurized state or disarm state.And then, a kind of sheet material conveyor and fixing device are provided, even when side cover 202 is opened, be in pressurized state, also can easily carry out the on-off action of side cover 202.
Summary of the invention
The objective of the invention is to solve at least above-mentioned problem.
A kind of sheet material conveyor that the present invention relates to comprises: a pair of rotary body; Delivery section, it makes this rotary body be crimped on another rotary body, thereby forms pressure contact portion, and carried by described pressure contact portion clamping sheet material a rotary body pressurization in a pair of rotary body; The pressure rod that can swing, its cardinal extremity is bearing on the fixed part, and have can with the swinging end of the swivel bearing portion butt of the rotary body of pressurized in the described rotary body; It is distolateral that swing arm, its cardinal extremity are bearing in the swing of described pressure rod, is that benchmark has a plurality of swinging ends with described cardinal extremity, can make the change in location of the fulcrum that is supported on described base end side when swing; Elastic body, it is hooked between base end side described in the swinging end of described swing arm and the described fixed part, and it is described swing arm in described rotary body is pressured, wherein, described elastomeric colluding hung in the position, and the cardinal extremity that described swing arm is located in the position movablely is hung in colluding of described swing arm base end side, the swing position of base end side when swinging according to described swing arm, different with the swing of base end side, change with the state of the different offset in position before swing.
In addition, sheet material conveyor involved in the present invention comprises: a pair of rotary body; Delivery section, it is crimped on another rotary body this rotary body, thereby forms pressure contact portion, and carried by described pressure contact portion clamping sheet material a rotary body pressurization in a pair of rotary body; The pressure rod that can swing, its cardinal extremity is bearing in fixed bearing portion, be provided with can with the pressurization part of the swivel bearing portion butt of the rotary body of pressurized in the described rotary body; It is distolateral that the swing arm that can swing, its cardinal extremity are bearing in the swing of described pressure rod; Pressing lever, it pushes described swing arm, making described swing arm remove the position from pressurization swings to pressing position, wherein, push described swing arm at described pressing lever and make it remove the position to the process of pressing position swing, the direction swing that described pressing lever is left to the swing fulcrum from described swing arm from pressurization.
In addition, image processing system of the present invention is provided with sheet material conveyor, and this sheet material conveyor comprises: a pair of rotary body; Delivery section, it makes this rotary body be crimped on another rotary body, thereby forms pressure contact portion, and carried by described pressure contact portion clamping sheet material a rotary body pressurization in a pair of rotary body; The pressure rod that can swing, its cardinal extremity is bearing on the fixed part, and have can with the swinging end of the swivel bearing portion butt of the rotary body of pressurized in the described rotary body; It is distolateral that swing arm, its cardinal extremity are bearing in the swing of described pressure rod, is that benchmark has a plurality of swinging ends with described cardinal extremity, can make the change in location of the fulcrum that is supported on described base end side when swing; Elastic body, it is hooked between base end side described in the swinging end of described swing arm and the described fixed part, and it is described swing arm in described rotary body is pressured, wherein, described elastomeric colluding hung in the position, and the cardinal extremity that described swing arm is located in the position movablely is hung in colluding of described swing arm base end side, the swing position of base end side when swinging according to described swing arm, different with the swing of base end side, change with the state of the different offset in position before swing.
As mentioned above, with reference to accompanying drawing by learning above-mentioned and other purposes of the present invention, feature and advantage to knowing in the detailed description of the invention.
Description of drawings
Fig. 1 is the in-built sectional view of the image processing system of expression first embodiment.
Fig. 2 is the Y handle box and the amplification assumption diagram on every side thereof of the image processing system of expression first embodiment.
Fig. 3 is that the sectional view of open mode is covered in the side of the image processing system of expression first embodiment.
Fig. 4 is the figure of pressurized state of the fixing device of expression first embodiment.
Fig. 5 is (A)-(A) directional profile figure of pressurized state of the fixing device of first embodiment.
Fig. 6 is the figure of disarm state of the fixing device of expression first embodiment.
Fig. 7 is the figure of pressurized state of the fixing device of expression second embodiment.
Fig. 8 is the figure of disarm state of the fixing device of expression the 3rd embodiment.
Fig. 9 is the B direction observation figure of disarm state of the fixing device of the 3rd embodiment.
Figure 10 is (C)-(C) directional profile figure of disarm state of the fixing device of the 3rd embodiment.
Figure 11 is (D)-(D) directional profile figure of disarm state of the fixing device of the 3rd embodiment.
Figure 12 is the figure of the state of the clamping bar of fixing device of expression the 3rd embodiment and swing arm butt.
Figure 13 is the constitutional diagram that the swing arm of the fixing device of the 3rd embodiment is pressed into pressurized state.
Figure 14 is the figure of swing arm that further is pressed into the fixing device of the 3rd embodiment than Figure 13.
Figure 15 is the figure of swing arm that further is pressed into the fixing device of the 3rd embodiment than Figure 14.
Figure 16 is the figure of swing arm that further is pressed into the fixing device of the 3rd embodiment than Figure 15.
Figure 17 is the figure of swing arm that further is pressed into the fixing device of the 3rd embodiment than Figure 16.
Figure 18 is the figure of swing arm that further is pressed into the fixing device of the 3rd embodiment than Figure 17.
Figure 19 is the figure of swing arm that further is pressed into the fixing device of the 3rd embodiment than Figure 18.
Figure 20 is the figure of pressurized state of the fixing device of expression the 3rd embodiment.
Figure 21 is that the figure of the irregular pressurized state of fixing device is covered when opening in the side of the image processing system of expression the 3rd embodiment.
Figure 22 is (E)-(E) directional profile figure of irregular pressurized state of the fixing device of the 3rd embodiment.
Figure 23 is illustrated in the pin that the side that slotted hole is set on the pressure rod and will installs main body certainly extends to insert in this slotted hole figure with the structure example of the oscillating quantity of restriction pressure rod.
Figure 24 A is the figure of pressurized state of pressing mechanism of the fixing device of expression prior art embodiment.
Figure 24 B is that the pressurized state of pressing mechanism of fixing device of expression prior art embodiment is along the sectional view of (F)-(F) direction of Figure 24 A.
Figure 25 is the figure of disarm state of pressing mechanism of the fixing device of expression prior art embodiment.
Embodiment
Fig. 1 is the in-built sectional view of the image processing system of expression first embodiment.The basic structure of image processing system 100 at first, is described.In Fig. 1, image processing system 100 has four handle box 400Y, 400M, 400C, the 400K of the toner picture that is used for generation yellow, magenta, cyan, black (following note is Y, M, C, K).It forms material and uses the mutually different Y of color, M, C, K toner as image, and structure in addition is identical, and changes when reaching the life-span.With the handle box 400Y that is used to generate Y toner picture is example, as shown in Figure 2, is provided with photosensitive drums 401Y, drum cleaning device 405Y, static eraser (not shown), Charging system 406Y, imagescope 500Y etc.Handle box 400Y as image formation unit can install, dismantle on image processing system 100 main bodys, can disposable replacing consumption part.
Above-mentioned Charging system 406Y drives the drive unit that is gone out by figure not and the surperficial uniform charged of the photosensitive drums 401Y of the rotation of dextrorotation veer in the drawings.The electrostatic latent image that Y uses is carried by laser L scan exposure in the surface of the photosensitive drums 401Y of uniform charged.The electrostatic latent image of this Y manifests Y toner picture by the imagescope 500Y that use contains the Y developer of Y toner and magnetic carrier.Then, in intermediate transfer belt 403 enterprising interline transfer printings described later.Drum cleaning device 405Y will remove through the toner of the photosensitive drums 401Y remained on surface after the intermediate transfer process.In addition, the residual charge of the photosensitive drums 401Y after above-mentioned static eraser will clean is removed.Remove static by this, the surface of photosensitive drums 401Y is initialised and prepares next imaging.Go up in photosensitive drums (401M, 401C, 401K) too in the handle box of other colors (400M, 400C, 400K) and form (M, C, K) toner picture, and in intermediate transfer belt 403 enterprising interline transfer printings.
Above-mentioned imagescope 500Y is provided with from the opening of its housing and exposes partly and the developing roll 501Y that is provided with.In addition, also be provided with two the conveyor screw bodies (ス Network リ ュ ゥ) 502Y, the wing 503Y that are arranged in parallel, toner concentration sensor (below be called the T sensor) 504Y.
In the housing of imagescope 500Y, take in the not shown Y developer that contains magnetic carrier and Y toner.This Y developer is carried on the surface of above-mentioned developing roll 501Y after utilizing two conveyor screw body 502Y stirring conveying frictional electrifications.So, by limit the bed thickness of developer with wing 503Y, then with it to carrying with the relative video picture zone of photosensitive drums 401Y with Y, this make the Y toner attached to the electrostatic latent image on the photosensitive drums 401Y on.Adhere to by this, on photosensitive drums 401Y, form Y toner picture.In imagescope 500Y, the Y developer that is consumed the Y toner by video picture turns back in the housing along with the rotation of developing roll 501Y.
Between two conveyor screw body 502Y, be provided with spaced walls.Utilize this spaced walls to be divided into the first supply unit 505Y of the conveyor screw body 502Y that accommodates right side among developing roll 501Y or the figure etc. and the second supply unit 506Y that accommodates the conveyor screw body 502Y in left side among the figure in the housing.The conveyor screw body 502Y on right side is driven by not shown drive unit rotation among the figure, and the Y developer in the first supply unit 505Y side direction inboard, front from figure is on one side carried, Yi Bian supply with developing roll 501Y.
Near the Y developer that utilizes the conveyor screw body 502Y on right side among the figure to be transported to the first supply unit 505Y end enters in the second supply unit 506Y by the not shown peristome of being located at above-mentioned partition wall.In the second supply unit 506Y, among the figure conveyor screw body 502Y in left side by not shown drive unit driven in rotation, the reverse conveying of Y developer conveyor screw body 502Y on right side to figure that will send here from the first supply unit 505Y.
Near the Y developer that is transported to the second supply unit 506Y end by the conveyor screw body 502Y in left side among the figure turns back in the first supply unit 505Y by another peristome (not shown) of being located at above-mentioned partition wall.
The above-mentioned T sensor 504Y that is made of the magnetic susceptibility sensor is arranged on the diapire of the second supply unit 506Y, output and the corresponding voltage of magnetic susceptibility that passes through the Y developer on it.The magnetic susceptibility of two composition developers that contains toner and magnetic carrier is owing to have good correlationship with toner concentration, so T sensor 504Y exports the voltage corresponding with the Y toner concentration.This output voltage values is delivered to not shown control part.This control part is provided with the RAM of storage Y with Vtref, and this Y Vtref is the desired value from the voltage of T sensor 504Y output.Also storing from the desired value of the voltage that is loaded into the not shown T sensor output on other imagescopes among this RAM is M with Vtref, C with Vtref and K Vtref data.
Y is used for the drive controlling of Y described later with toner conveyance device with Vtref.Specifically, the not shown Y of above-mentioned control part drive controlling with toner conveyance device and in the second supply unit 506Y supply Y toner so that the magnitude of voltage of T sensor 504Y output approaches Y Vtref.By this supply, the Y toner concentration in the Y developer of imagescope 500Y is maintained in the specialized range.About the imagescope of other handle boxes, utilize M, C, K to implement same toner replenishing control with toner conveyance device.
Among the Fig. 1 that formerly illustrates, be provided with exposure device 402 below in the figure of handle box 400Y, 400M, 400C, 400K.The exposure device 402 that forms device as sub-image will be radiated on each photosensitive drums among handle box 400Y, 400M, 400C, the 400K and expose based on image information emitted laser L.By this exposure, on photosensitive drums 401Y, 401M, 401C, 401K, form the electrostatic latent image that Y, M, C, K use.In addition, the laser (L) that exposure device 402 sends from light source by the polygon prism scanning that is driven by the motor rotation on one side is on one side by means of a plurality of optical lenses or catoptron irradiation photosensitive drums.
The downside configuration has paper receiver 425 and the paper accommodation device that is assembled in feed roll 426 grades in this paper receiver 425 in the figure of exposure device 402.Paper receiver 425 will write down many overlapping taking in of sheet material P of body as sheet, make its uppermost sheet material P and feed roll 426 butts.If feed roll 426 is driven along being rotated counterclockwise the direction rotation among the figure by not shown drive unit, then uppermost sheet material P just sends to feeding path 424.Near the end of this feeding path 424, be provided with alignment roller to 510.This alignment roller rotates two rollers to 510 for clamping sheet material P, and temporarily stops the rotation immediately after sandwiching paper.Then, sheet material P sent to secondary transfer printing clamping part described later in the suitable moment.
On the other hand, be provided with transfer printing unit 404 above in the figure of handle box 400Y, 400M, 400C, 400K, the intermediate transfer belt 403 as the intermediate transfer body is set up in these transfer printing unit 404 tensionings, and makes it make annular movement.Except that intermediate transfer belt 403, this transfer printing unit 404 also is provided with secondary transfer printing biasing roller 407, band cleaning device 408 etc.In addition, also be provided with four primary transfer biasing roller 409Y, 409M, 409C, 409K and secondary transfer printing backing rolls 410, cleaning backing roll 411, idler roller 412 etc.Intermediate transfer belt 403 is erected on these seven rollers, and the rotation by any roller at least wherein drives counterclockwise makes annular movement in figure.
Primary transfer biasing roller 409Y, 409M, 409C, 409K sandwich the intermediate transfer belt 403 of annular movement between photosensitive drums 401Y, 401M, 401C, the 401K, form the primary transfer clamping part respectively.This is that (annular inner peripheral surface) applies mode with toner reversed polarity (as positive) transfer bias at the back side of intermediate transfer belt 403.Roller except primary transfer biasing roller 409Y, 409M, 409C, 409K all electrical ground.Intermediate transfer belt 403 is in the process of the primary transfer clamping part of using by Y, M, C, K successively along with annular movement, and the Y on photosensitive drums 401Y, 401M, 401C, the 401K, M, C, K toner picture overlap, and realize primary transfer.Thus, forming the toner picture that four looks overlap (below be called four colour toners pictures) on the intermediate transfer belt 403.
Above-mentioned secondary transfer printing backing roll 410 sandwiches intermediate transfer belt 403 between itself and the secondary transfer roller 407, forms the secondary transfer printing clamping part.Forming four visual colour toners pictures on the intermediate transfer belt 403 is transferred on the sheet material P by this secondary transfer printing clamping part.So, with the white interaction formation full-color toner picture of sheet material P.On by the intermediate transfer belt behind the secondary transfer printing clamping part 403, adhere to the transfer printing remaining toner that is not transferred on the sheet material P.Utilize band cleaning device 408 to clean.By the secondary transfer printing clamping part will be in the lump secondary transfer printing the sheet material P of four colour toners pictures in transfer printing after be transported to fixing device 300 by transport path 413.
Fixing device 300 forms the photographic fixing clamping part by fixing roller 301 and backer roll 302, and wherein, the inside of fixing roller 301 has pyrotoxins such as Halogen lamp LED, on one side backer roll 302 rotates with authorised pressure and fixing roller 301 butts on one side.The sheet material P that is sent in the fixing device 300 makes its unfixing toner be close to fixing roller 301 as loading end, and by the clamping of photographic fixing clamping part.So, make the toner in the toner picture softening by the influence of heating or pressurization, make full-color toner as photographic fixing.
In fixing device 300, photographic fixing the sheet material P of full-color toner picture after fixing device 300 output, the bifurcation point of the row of coming paper path 414 and the preceding transport path 415 of counter-rotating.Be provided with first swingably at this bifurcation point and switch pawl 416, swing the course of switching sheet material P by it.Specifically, the direction action of the transport path 415 to before of the front end by making pawl near counter-rotating, the course of this sheet material P is to the direction of arranging paper path 414.In addition, the direction swing of the transport path 415 to before of the front end by making pawl away from counter-rotating, the course of this sheet material P is the direction of transport path 415 before reversing.
Utilizing first to switch pawl 416 and select under the situation of the course in row's paper path 414, sheet material P from row's paper path 414 through exit rollers to after 417, be stacked on and be equipped on the outer and row's pile stack 418 above the housing 200 of image processing system.In contrast, utilizing first to switch pawl 416 and select under the situation of the course of transport path 415 before counter-rotating, sheet material P enters reverse roll to 419 clamping part through the preceding transport path 415 of counter-rotating.Reverse roll is carried to storehouse 418 the 419 sheet material P that will sandwich between roller, but when being about to enter clamping part in the rear end of sheet material P, makes the roller reverse rotation.By reverse rotation, sheet material P is by to carrying in the opposite direction with before side, and the rear end side of sheet material P enters counter-rotating transport path 420.
Between above-mentioned transfer printing unit 404 and the storehouse portion 418 above it, dispose bottle support 203.This bottle support 203 is mounted with toner bottle 507Y, 507M, 507C, the 507K as the toner resettlement section that accommodates Y, M, C, K toner.Toner bottle 507Y, 507M, 507C, 507K are arranged side by side with the angle that tilts a little than level mutually, and with the order of Y, M, C, K allocation position are uprised gradually.Y among toner bottle 507Y, 507M, 507C, the 507K, M, C, K toner are respectively by the imagescope of the suitable supply of toner conveyance device described later to handle box 400Y, 400M, 400C, 400K.These toner bottles 507Y, 507M, 507C, 507K are independent of handle box 400Y, 400M, 400C, 400K are removably mounted on image processing system 100 main bodys.
In image processing system 100, side cover 202 is that fulcrum is provided with swingably with unit, two sides 201 with the cover rotation axis 204 that is located at its underpart setting, and can open and close with respect to framework 200.Fig. 3 represents side cover 202 states of opening.
As shown in Figure 1, when side cover 202 is in closing state with respect to framework 200, between itself and framework 200, be formed with transfer printing after transport path 413 and from the logical paper path of fixing device 300 outside image processing system.Be among the middle mind-set figure during clockwise direction Unscrew at side cover 202 with cover rotation axis 204, and framework 200 and unit, two sides 201 leave significantly.As shown in Figure 3, leave by this, after the transfer printing transport path 413 and from the logical paper path of fixing device 300 outside image processing system to exposing outside, so easily remove the obstruction paper in this logical paper path.
That is, leave the pressing mechanism of just 302 pairs of fixing roller 301 applied pressures of backer roll of fixing device 300 being removed 315 from framework 200 in case be provided with unit, two sides 201.Image processing system 100 is to remove the sheet material P that stops up take place stopping up under the situation of paperboard to row's paper path 414 of 417 from paper receiver 425 to exit roller, as shown in Figure 3 side cover 202 is opened.
Below, the pressing mechanism of the fixing device of first embodiment is described.The fixing device 300 of first embodiment has can be by on one side and the mutual butt of a part of periphery structure of rotating the clamping part of clamping feeding sheets P on one side, and fixing roller 301 and backer roll 302 be set respectively, wherein, fixing roller 301 is contacting with image in a side across clamping part, backer roll 302 opposite side with sheet material P face contact to fixing roller 301.Backer roll 302 can be with respect to fixing roller 301 contact separations, its supporting structure, are that pressing mechanism 315 is shown in Fig. 4 and Fig. 5.
In the structure shown in the Figure 4 and 5, be with the difference of Figure 24 A, Figure 24 B and structure shown in Figure 25, in extending direction end as the spring 305 of elastomeric element, with the opposite side in end that is hooked on framework 200 sides that are equivalent to fixed part, the end that is hooked on the swinging end 306A side of swing arm 304 can displacement at its swinging end self.
Promptly, in Fig. 4, be set up in swing arm 304 and be equivalent to spring 305 between the framework 200 of fixed part near the cardinal extremity of swing arm 304, the colluding of a 306A place that is hooked on two strands of shape swinging ends by card shotpin 309 hung position T1 and changed on the position different with swinging preceding position according to the swing position of swing arm 304.
Next its principle is described.In Fig. 4, near the colluding of spring 305 that is provided with swinging end 306A the cardinal extremity of swing arm 304 hung position T1, the slotted hole 308 that formation is extended along the akin direction of tangent line that with bolster 307 is the swinging track (representing with Reference numeral L among Fig. 4) of benchmark, the chimeric card shotpin 309 that colludes the direction of extension end that hangs spring 305 on slotted hole 308.In addition, the opposition side of spring 305 utilizes spring installation projection 324 to be fixed on fixed part and colludes extension position T2.
Fig. 5 is along Fig. 4 (A)-(A) directional profile figure.As shown in Figure 5, card shotpin 309 is inserted in the elongated holes 308, and the end of spring 305 is hooked on its axially central authorities, and wherein, described slotted hole 308 forms in two branches of a swinging end 306A of the swing arm 304 that branches into two bursts of structures.In Fig. 4, slotted hole 308 according to the swing position of swing arm 304 along being the swinging track L displacement at center with bolster 307, in the swing process of swing arm 304, shown in Reference numeral L1 among Fig. 4, be located at card shotpin 309 that colluding of spring 305 hang position T1 and collude with respect to the fixed part as framework 200 sides of an end of spring 305 extending directions and hang position T2 and bolster 307 is located along the same line, each parts under this state are in the dead-centre position.
At this moment be that spring 305 when producing maximum tensions, elongation become maximum M1.If surpass this straight line, then according to the direction that surpasses, utilize when shrinking (with among Figure 25 with Reference numeral M2 represent identical, elongation diminishes) tractive force, the position above this straight line more when being displaced to than maximum elongation.Perhaps, as shown in figure 25, when utilize shrinking (with among Figure 25 with Reference numeral M2 represent identical, elongation diminishes) tractive force, the position below this straight line more during than maximum elongation.
Fig. 6 is the figure of pressurization disarm state of the fixing device of expression first embodiment, expression spring 305 collude the state of position T1 of hanging from the below process.Therefore, be located at card shotpin 309 that near colluding of spring 305 cardinal extremity that is positioned at swing arm 304 hang T1 place, position with this straight line be the border be independent of this swing arm 304 swing to bottom offset, thereby set the position of the moment loading direction variation that makes the tractive force that utilizes spring 305.
Especially, owing to be located at the base end side that the card shotpin 309 of hanging position T1 is not fixed on swing arm 304 that colludes of spring 305 in the swing arm 304, but can displacement alone in slotted hole 308, so even swing arm 304 is in order with a straight line to be boundary bit side or below and do not rotate significantly thereon, also can set the action direction of moment, this moment is set towards the state of backer roll 302 pressured swing arms 304 and the state that leaves from backer roll 302.
Thus, near the situation that colluding of spring 305 hang the cardinal extremity that the card shotpin 309 of position T1 is fixed on swing arm 304 is different with being located at, when the action direction that makes the relative swing arm 304 of moment changes, owing to utilize the oscillating quantity (rotational travel) of swing arm 304 and the displacement of card shotpin 309, so can reduce the oscillating quantity of swing arm 304.In addition, the position of representing swing arm shown in Figure 4 304 among Fig. 6 with Reference numeral P3.
In the first embodiment, the amount of movement of card shotpin 309 in slotted hole 308 is 6mm, as shown in Figure 4, limit slotted hole 308 length direction towards, make colluding of spring 305 bearing of trend two ends hang position T1, fixed part colludes the bolster 307 of hanging position T2 and swing arm 304 and all is arranged on the straight line L1, promptly, collude the card shotpin 309 of hanging T1 place, position at spring 305 and cross the dead point upward during displacement, the angle θ 1 between the length direction of the extended line of spring 305 and slotted hole 308 is chosen in 100～120 °.
As shown in Figure 6, utilize this angle, spring 305 colludes the card shotpin 309 of hanging T1 place, position when crossing dead point displacement downwards, under the angle θ 2 of the length direction of the extended line of above-mentioned spring 305 and slotted hole 308 becomes less than 90 ° state, can keep the state that swing arm 304 leaves from backer roll 302.Identical with situation shown in Figure 25, this swing arm 304 means from the state that backer roll 302 leaves, although the bolster 307 of swing arm 304 is owing to the shape restoring force that the releasing and the fixing roller 301 of the depended on pressure of spring 305 produced is carried out displacement (moving to the position that P2 represents from the position that Reference numeral P1 represents) in Figure 25, but with it linkedly, pressure rod 303 is the state of fulcrum to the direction swing of leaving backer roll 302 with turning axle 310.
The inventor is based on above-mentioned condition, as shown in Figure 4, the angle θ 1 of the length direction of the extended line of the spring 305 of swing arm 304 when backer roll 302 is pressured and slotted hole 308 is set at 105 °, measure the oscillating quantity (corner) of swing arm 304, then as shown in Figure 6, under the state that setting swing arm 304 leaves from backer roll 302, the oscillating quantity of this swing arm 304 (rotation angle) θ 2 measurement results are 68 °.
By way of parenthesis, colluding the card shotpin 309 of hanging T1 place, position at the spring 305 of swing arm 304 sides is not to utilize the tractive force displacement automatically of spring 305 contractions but be fixed under the situation on the swing arm 304, can obtain following result: owing to need make swing arm 304 swing until card shotpin 309 being turned to and blocking the automatic position identical when mobile of shotpin 309, and card shotpin 309 can not move automatically, so correspondingly the oscillating quantity of swing arm 304 (corner) becomes big.
From this result as can be seen, can make the other end 306B of the swinging end of swing arm 304 be positioned at the motion track of clamping bar 311, thus, can according to the slip of clamping bar 311 by clamping bar 311 carry out push action by pressure roller 313, only by with this clamp rod 311 integrated the closing motion of side cover 202 just can swing arm 304 is pressured to backer roll 302.In addition, swing arm 304 and pressure rod 303 shown in Figure 6 utilize not shown block and the holding position.That is, swinging end 306B in the swing arm 304 and the line part between the swinging end 306A are present in the motion track by pressure roller 313 of clamping bar 311 sides.
Thus, swing arm 304 when clamping bar 311 is moved to the left by pushing line part between swinging end 306B and the swinging end 306A by pressure roller 313 on the clamping bar 311.As a result, can be to pressure rod 303 sideway swivels.Therefore, as shown in Figure 3, rotate to closing direction from the open sides cover of framework 200 202.If clamping bar 311 is swung with the rotation interlock of side cover 202, then move to the double dot dash line direction by solid line position shown in Figure 6.
By to the moving clamping bar 311 of pressure rod 303 thrusters, then the line part between the swinging end 306B of swing arm 304 and the swinging end 306A is by being pushed with standing facing each other mutually by pressure roller 313 of clamping bar 311 sides, thereby swing arm 304 begins to rotate.Finally, be positioned at the hook portion 328 of clamping bar 311 front ends since hook on the swing arm 304 swing arm fulcrum post 312 and to status transition shown in Figure 4.
In addition, in Fig. 6, with the mode of the drift of Reference numeral M2=spring 305 set the slotted hole 308 of swing arm 304 sides form, be length or length direction, under the depended on pressure of spring 305 acts on the state of bar class, can not keep the pressurization disarm state thus.
As mentioned above, according to first embodiment, can reduce the oscillating quantity (corner) of swing arm 304.The result, owing to one of the swinging end that can make swing arm 304 306A does not break away from from the sliding trace of clamping bar 311, so the side of closing image formation device 100 covers at 202 o'clock after eliminating obstruction, even do not carry out swing arm 304 reset operations, also can set the pressurized state of backer roll 302.
Because colluding the displacement of hanging the position, the spring 305 of swing arm 304 sides at card shotpin 309 places undertaken by the open-and-shut like this structure of so-called slotted hole 308, so do not use complex structure just can reduce the oscillating quantity (corner) of swing arm 304, and can cover that 202 closing motion matches and the pressurized state of setting backer roll 302 with the side.
Below, the pressing mechanism of the fixing device of second embodiment is described.The inside of the image processing system of relevant second embodiment, owing to have and first embodiment identical construction and the action, identical structure marks same Reference numeral and omits explanation.Fig. 7 is the sectional view of pressing mechanism of the fixing device of second embodiment, has the identical mechanism with Fig. 4.And, in Fig. 7, represent the parts identical, and omit explanation whole parts with Fig. 4 with identical Reference numeral.
In Fig. 7, be with the difference of first embodiment: in the swinging end 306A of swing arm 304 side, the card shotpin 309 chimeric with slotted hole 308 is arranged on length direction one end.And, use around the bolster 307 circuitous connecting links 314 that form.In addition, an end card of spring 305 ends on the opposite side end of the card shotpin 309 of connecting link 314, and the other end of spring 305 is fixed on fixed part by spring installation projection 324 and colludes extension position T2.
According to the second above-mentioned embodiment, in order to obtain the effect identical, needn't design the structure portion of special spring shape with first embodiment, also can use the spring of the formation prolongation state of common usefulness.
Below, the pressing mechanism of the fixing device of the 3rd embodiment is described.The inside of the image processing system of the 3rd embodiment, owing to have and first embodiment identical construction and the action, identical structure marks same Reference numeral and omits explanation.At first.The pressing mechanism 315 of fixing device 300 is described with Fig. 8～Figure 22.The state of the pressing mechanism 315 when Fig. 8 represents that side cover 202 leaves framework 200 states significantly.Fig. 9 represents the swing arm 304 seen from the B direction of Fig. 8.Figure 10 is the sectional view of Fig. 8 (C)-(C) direction, and Figure 11 is the sectional view of Fig. 8 (D)-(D) direction.
Below, utilize Fig. 8 and Fig. 9 that swing arm 304 is described.Swing arm 304 is removed between position and the pressing position in pressurization shown in Figure 8 and is swung.Swing arm 304 has swinging end 306B and swinging end 306A, wherein, when pressurization is removed, swinging end 306B extends top in figure and to cover 202 inclinations to the side oblique, as shown in Figure 9, swinging end 306A self-swinging end 306B is divided into two forks, when pressurization is removed than the more close fixing roller 301 of swinging end 306B.The bolster 307 of above-mentioned pressure rod 303 freely swing the fixing swinging end 306A of swing arm 304.
In addition, on the swinging end 306A of swing arm 304, be provided with slotted hole 308, and card shotpin 309 is fastened in this slotted hole 308.One end of spring 305 is installed on this card shotpin 309, and the other end of spring 305 is installed in the spring that extends from the side of the side of framework 200 or fixing device 300 and installs on the projection 324.Remove the position at swing arm 304 to the process of pressing position swing from pressurization, this slotted hole 308, card shotpin 309 and spring 305 work as the depended on pressure switching device shifter, and described depended on pressure switching device shifter is that the depended on pressure of 305 pairs of swing arms 304 of spring is switched to the pressured direction of pressing position (among the figure counterclockwise) from remove the pressured direction (clockwise direction the figure) in position to pressurization.As shown in Figure 8, when side cover 202 is in from state that framework 200 is left significantly when removing the position (swing arm 304 is in pressurization), spring 305 becomes drift.
In addition, be provided with register pin 325 on the inboard side of swinging end 306A, when swing arm 304 was in pressurization releasing position, register pin 325 touched with the location division 326 of pressure rod 303, and restriction swing arm 304 is along clockwise direction swing among the figure.On the side of the front side of the swinging end 306B of swing arm 304, be provided with engaging protrusion 327, when pressurization is removed, engage with the hook portion 328 of relieving rod 320.In addition, on the relative position of the inboard side of swinging end 306B and engaging protrusion 327, be provided with locator protrusions 329, when pressing mechanism 315 is in pressurized state, this locator protrusions 329 touches with the locating slot 330 of pressure rod 303, and restriction pressure rod 303 is along (position is removed in pressurization) rotation counterclockwise among the figure.
In Fig. 8 and Fig. 9, be located at the second fixed part pilot hole 341 of second fixed part 335 by inserting, thereby the carriage 331 that is fixed with clamping bar 311 and relieving rod 320 is positioned from the locator protrusions 342 that unit, two sides side plate 332 extends.
As shown in Figure 8, be provided with hook-shaped hook portion 328 on the end of the apparatus main body side of relieving rod 320, when the pressurized state of pressing mechanism 315 was disengaged, this hook portion 328 engaged with the engaging protrusion 327 of swing arm 304.In addition, be provided with to the side-prominent releasing spring installation portion 344 in front, and an end of removing spring 345 is installed in the end of the unit, two sides of relieving rod 320 201 sides.Removing the other end of spring 345 installs with the state that extends to the second spring installation portion 346 of being located at second fixed part 335.Thus, relieving rod 320 utilizes releasing spring 345 counterclockwise pressured in figure.In addition, second fixed pin 339 passes the hole portion of the relieving rod slotted hole 338 and the carriage 331 of relieving rod 320, is fixed on the clamping bar 311, and restriction cancellation bar 320 counterclockwise moves in figure.
As shown in Figure 8, be provided with fastening spring installation portion 348, and an end of fastening spring 349 is installed in side plate 332 ends, the unit, two sides of clamping bar 311.On the other hand, the other end of fastening spring 349 is installed on the first spring installation portion 350 that the stage portion 333 of carriage 331 is extended with the state of spring stretching.Thus, clamping bar 311 is by counterclockwise pressured in figure.
Next, according to Figure 10, Figure 11 clamping bar 311 and relieving rod 320 are described.Clamping bar 311 and relieving rod 320 are installed in via carriage 331 on unit, the two sides side plate 332 of the unit, two sides 201 in the side cover 202.Carriage 331 has carriage stage portion 333, first fixed part 334 and second fixed part 335 that floats from unit, two sides side plate 332.As shown in figure 10, on relieving rod 320, be provided with relieving rod hole portion 336,, make these first fixed pin, 337 riveted and fixed on the carriage stage portion 333 of carriage 331 by first fixed pin 337 is inserted in this relieving rod hole portion 336.
Thus, relieving rod 320 serves as that the swing fulcrum can be fixed on the carriage 331 with freely swinging with first fixed pin 337.Second fixed pin 339 inserts in the relieving rod slotted hole portion 338 of relieving rod 320, and the stage portion 333 of second fixed pin, 339 through brackets 331 and riveted and fixed are on clamping bar 311.Thus, clamping bar 311 serves as that the swing fulcrum is fixed on the carriage 331 with freely swinging with second fixed pin 339.In addition, in the first fixed part screw 340 that trip bolt 343 is screwed into first fixed part 334, shell 331 is fixed on unit, the two sides side plate 332.
As shown in figure 11, will be installed on the end of framework 200 sides of clamping bar 311 by pressure roller 313 via engagement pin 347 with rotating freely.Second fixed pin 339 from away from the direction of unit, two sides side plate 332 successively with the order of relieving rod 320, carriage stage portion 333 and clamping bar 311 as three's oscillation centre and be fixed.On relieving rod 320, be provided with and remove spring installation portion 344.Clamping bar 311 touches with the connecting portion 351 of as shown in figure 11 carriage 331 when pressurization is removed, when making by pressure roller 313 with swing arm 304 butts, with the position limit of clamping bar 311 press pressure roller 313 can with the position of swinging end 306B butt.In addition, second fixed part 335 is fixed on unit, the two sides side plate 332 by locator protrusions 342.
Then, utilize Figure 12～Figure 20 to illustrate that pressing mechanism 315 covers 202 states that leave more greatly from framework 200 as shown in Figure 8 from the side and covers the state that 202 down periods exerted pressure to backer roll bearing 316 up to the side.In addition, in Figure 12～Figure 20, the parts mark identical Reference numeral identical, and the explanation of omitting whole parts with Fig. 8.
If at transport path after the transfer printing 413 or from the paper path of fixing device 300 outside image processing system paper obstruction etc. takes place, side cover 202 is opened, again side cover 202 is closed after the removal paper etc., then as shown in figure 12, the swinging end 306B butt of pressing pressure roller 313 and swing arm 304 of clamping bar 311.
As shown in figure 13, if further close side cover 202, then utilize clamping bar 311 to push swing arm 304, making it serves as that the swing fulcrum is along (pressing position direction) swing counterclockwise among the figure with bolster 307.In addition, via swing arm 304 clamping bar 311 is passed to bolster 307 to the power that is pressed into of fixing roller 301 sides, making pressure rod 303 serves as the clockwise direction swing in figure of swing fulcrum with rotation axis 310.Thus, the pressurization part 323 of pressure rod 303 is gone into backer roll bearing 316 to fixing roller 301 side pressures, makes backer roll bearing 316 to fixing roller 301 side shiftings.
In addition, serve as (pressing position direction) swing counterclockwise in figure of swing fulcrum by making swing arm 304 with bolster 307, the card shotpin 309 of swing arm 304 moves to the direction of leaving spring installation projection 324.As a result, spring 305 is from the drift elongation, and is via card shotpin 309 that swing arm 304 clockwise direction (locality is removed in pressurization) in figure is pressured.
At this moment, as shown in figure 13, when seeing by the axial section of fixing roller 301, connect by the contact point of pressure roller 313 and swinging end 306B and as the straight line of the central point of second fixed pin 339 of the swing fulcrum of clamping bar 311, with the bearing surface of swing arm 304 and clamping bar 311 butts be that swinging end 306B side angulation θ is less than 90 °.Thereby swing arm 304 is subjected to the oblique power D of below in figure from clamping bar 311.
So, as shown in figure 14, become till 90 ° until θ, Yi Bian clamping bar 311 be subjected to self-swinging bar 304 oblique power D of below in figure by pressure roller 313, Yi Bian the below of swinging end 306B side in figure of swing arm 304 moved.Because can installing of clamping bar 311, so, the swinging end 306B side of swing arm 304 is moved swimmingly while move the below that the swinging end 306B side of swing arm 304 is rotated in figure by pressure roller 313 with rotating freely.Thus, can weaken and close the side to apparatus main body and cover 202 o'clock resistance, can close side cover 202 swimmingly.In addition, make swing arm 304 along (pressing position direction) swing counterclockwise among the figure by being pressed into by clamping bar 311, leave thereby make card shotpin 309 further from spring projection 324 is installed, spring 305 further extends.Thus, spring 305 makes swing arm 304 further raise along the power (moment) of clockwise direction swing among the figure, has increased the power of pushing clamping bar 311 downwards.
Further be pressed into swing arm 304 and when making θ surpass 90 ° at the state from Figure 14, the center of pressing pressure roller 313 arrives than the position of contact position above more of pressing between pressure roller 313 and swinging end 306B.Like this, self-swinging bar 304 moment that acts on clamping bar 311 just switches to the moment of upward pushing from the moment of pushing downwards.As a result, the moment that 304 pairs of clamping bars 311 of swing arm are pushed upward just surpasses fastening spring 349 makes the pressured in the counterclockwise direction moment of clamping bar 311, thereby clamping bar 311 is swung clockwise.
As a result, clamping bar 311 moves by the direction of pressure roller 313 to the swing fulcrum that leaves swing arm 304 (bolster 307).Promptly, the position of clamping bar 311 as shown in figure 15 from primary importance to second place displacement, wherein, in primary importance, clamping bar 311 is positioned at same position at the front end and the relieving rod 320 of fixing roller 301 sides at the front end of fixing roller 301 sides on above-below direction, in the second place, clamping bar 311 the front end of fixing roller 301 sides be positioned at than relieving rod 320 the front end of fixing roller 301 sides more above.
Thus, clamping bar 311 is left by the swing fulcrum (bolster 307) of the pressing position of swing arm 304 from swing arm 304, can be with less power rotary oscillation bar 304.Thereby, can weaken and close the side to framework 200 and cover 202 o'clock resistance, can close side cover 202 swimmingly.At this moment, the side butt of the connecting portion 353 of clamping bar 311 and carriage 331 limits it and swings along clockwise direction.Under this state, locator protrusions 329 (not shown) of swing arm 304 and the locating slot 330 of pressure rod 303 touch and are spacing.
The state that the swinging end 306B of the swing arm 304 above clamping bar 311 is to figure moves is further closed the side and was covered 202 o'clock, shown in Figure 16,17, clamping bar 311 by pressure roller 313 from the end of the swinging end 306B of swing arm 304 to figure the below move while rotating.In addition, because swing arm 304 is pushed and rotation counterclockwise in figure by clamping bar 311, the slotted hole 308 of swing arm 304 covers the state that 202 side direction oblique uppers tilt from fixing roller 301 side ends of this slotted hole 308 certainly to the side and erects gradually.Under state shown in Figure 17, although the depended on pressure maximum of spring 305, make the moment maximum of swing arm 304 (position is removed in pressurization) swing to counterclockwise, but because the fulcrum of the swing arm 304 that makes clamping bar 311 (pressing position) swing along clockwise direction fully leaves from the swing fulcrum (bolster 307) of swing arm 304, so the resistance when the device cover is closed does not increase more.
As shown in figure 18, if the slotted hole 308 of swing arm 304 vertically erects, then the card shotpin 309 that engages with slotted hole 308 moves to the upper end from the bottom of slotted hole 308 by the depended on pressure of spring 305.
If utilize clamping bar 311 to make swing arm 304 along counterclockwise further swing among the figure, then as shown in figure 19, the distance that projection 324 is installed from slotted hole 308 upper ends to spring is than the distance weak point that projection 324 is installed to spring from the lower end of slotted hole 308.As a result, card shotpin 309 moves to the upper end of slotted hole 308.If card shotpin 309 moves to the upper end of slotted hole 308, the axle center of then blocking shotpin 309 likens to and is top among the bolster 307 more close figure of the rotation center of swing arm 304.
As a result, the depended on pressure of spring 305 switches to from the moment that swing arm 304 is swung along clockwise direction the figure (direction is removed in pressurization) and makes its moment of (pressing position direction) swing in the counterclockwise direction.So the moment that swing arm 304 is pushed clamping bar 311 upward disappears, on the contrary, clamping bar 311 utilizes the depended on pressure of fastening spring 349 to produce the moment of pushing swing arm 304 downwards.Therefore, push the moment of swing arm 304 and the moment that spring 305 is rotated counterclockwise swing arm 304 downwards by clamping bar 311, swing arm 304 is swung swimmingly along being rotated counterclockwise direction (pressing position).Thus, can weaken and close the side to framework 200 and cover 202 o'clock resistance, and can close side cover 202 swimmingly.
Then, as shown in figure 20, if close side cover 202, the locator protrusions 329 of then not shown swing arm 304 (with reference to figure 9) just touches with the locating slot 330 of pressure rod 303 and spacing.In addition, spring 305 is pressured to backer roll 302 sides with swing arm 304, and bolster 307 is pressured to backer roll 302 sides.Thus, on pressure rod 303, produce and make its right handed moment in figure, can exert pressure well backer roll bearing 316.In addition, clamping bar 311 utilizes depended on pressure below in figure of fastening spring 349 to push swing arm 304, therefore suppresses swing arm 304 along clockwise direction rotation among the figure.
Suppressed moving of swing arm 304 by clamping bar 311 like this, rotated in the counterclockwise direction because of the reacting force that is subjected to backer roll bearing 316 thereby the locator protrusions 329 of swing arm 304 can limit pressure rod 303.Thus, pressing mechanism 315 can be exerted pressure to backer roll bearing 316 with authorised pressure.In addition, cover under 202 closing state (pressing mechanism is in pressurized state) in the side, the engaging protrusion 327 of swing arm 304 is covered 202 sides and relative than the hook portion 328 more close sides of relieving rod 320.
When side cover 202 was opened, the hook portion 328 of relieving rod 320 was fastened on the engaging protrusion 327 of swing arm 304, made swing arm 304 along clockwise direction rotation among the figure.Owing to utilize releasing spring 345 to make relieving rod 320 counterclockwise pressured in figure, so when hook portion 328 and engaging protrusion 327 butts, relieving rod 320 can not crossed engaging protrusion 327, can engage with engaging protrusion 327 reliably.If utilize the hook portion 328 of relieving rod 320 that swing arm 304 during the clockwise direction rotation, is then left from the engaging protrusion 327 of swing arm 304 and the hook portion 328 of relieving rod 320 in figure.
In addition, when the hook portion 328 of the engaging protrusion 327 of swing arm 304 and relieving rod 320 is left, the lower end position of the slotted hole 308 of swing arm 304 than upper end position more by fixing roller 301 sides.So card shotpin 309 moves down from the upper end of slotted hole 308, the depended on pressure of spring 305 just makes it along right handed moment among the figure from swing arm 304 is changed to along counter clockwise direction rotating moment the figure.Thus, even the engaging protrusion 327 of swing arm 304 is left from the hook portion 328 of relieving rod 320, swing arm 304 also utilizes the depended on pressure of spring 305 along clockwise direction rotation among the figure, with clamping bar 311 butts.Afterwards, swing arm 304 one side are touched by pressure roller 313 with clamping bar 311, Yi Bian open gradually, swing to pressurization shown in Figure 8 always and remove the position.
As mentioned above, push swing arm 304 and make swing arm 304 remove the position to the process of pressing position swing, make clamping bar 311 swing and move to swing arm 304 leading sections from pressurization at clamping bar 311.Thus, push swing arm 304 and make swing arm 304 remove the position to the process of pressing position swing at clamping bar 311 from pressurization, compare with the situation that clamping bar 311 can not be swung, it is approaching to suppress the swing fulcrum of swing arm 304 and the distance of pushing fulcrum that clamping bar 311 is pushed swing arm 304.Thereby, remove the position at swing arm 304 to the process of pressing position swing from pressurization, can suppress clamping bar 311 and swing arm 304 is pressed into the necessary power of pressing position increases gradually.As a result, needn't push swing arm 304, just can make swing arm 304 swing to pressing position with clamping bar 311 brute forces, and the resistance can reduce side cover 202 and close the time.
In addition, remove the position at swing arm 304 to the process of pressing position swing from pressurization, clamping bar 311 is switched to and boosts direction (direction of leaving from bolster) from pressing direction (with the approaching direction of bolster as the swing fulcrum of swing arm) as the moment that is subjected to swing arm 304 by pressure roller 313 of clamping bar 311 and swing arm 304 docking sections.Specifically, when seeing as the axial section of the fixing roller 301 of rotary body, with swing arm 304 and bearing surfaces clamping bar 311 butts (swing part side) be the border with the abutment of clamping bar 311 and swing arm 304 point when angle theta between the line that the swing fulcrum of clamping bar 311 is connected is 90 °, clamping bar 311 switches the moment direction of the swing arm 304 that is subjected to.During less than 90 °, by the spring 305 as pressured device swing arm 304 is removed the pressured power of direction to pressurization at θ, clamping bar 311 is subjected to the moment of depressing direction (near the bolster direction) from swing arm 304.If θ surpasses 90 °, then swing arm 304 is removed the pressured power in position to pressurization by spring 305, clamping bar 311 is subjected to the moment that pressure from swing arm 304 plays direction (direction of leaving from bolster).Thus, the moment from swing arm 304 that clamping bar 311 is subjected to is removed the position at swing arm 304 from pressurization and is switched to the process of pressing position swing.Like this, by switching to the moment of clamping bar 311 having been pressed direction, utilize this pressure to play the moment of direction (direction of leaving from bolster), clamping bar 311 moves to the front end of swing arm 304.Thereby, remove the position at swing arm 304 to the process of pressing position swing from pressurization, the fulcrum (abutment of clamping bar 311 and swing arm 304) of pushing that clamping bar 311 is pushed swing arm 304 can leave from the swing fulcrum (bolster) of swing arm 304.
In addition, owing to be provided with the pressured fastening spring 349 of direction (near the direction of bolster) from swing arm 304 sides to clamping bar 311 that depress, so when pressing mechanism is in pressurized state, utilize fastening spring 349 pressured swing arms 304 via clamping bar 311, can suppress swing arm 304 and remove the position swing to pressurization.In addition, when pressurization is removed, can make swing arm 304, and remove the position when pressing position is swung from pressurization, can make by pressure roller 313 front end of butt swing arm 304 reliably at swing arm 304 to the assigned position swing.
By the abutting part that makes clamping bar 311 and swing arm 304 become rotate freely by pressure roller 313, make swing arm 304 remove the position to the process of pressing position swing from pressurization, clamping bar 311 can move in the rotation of the side of swing arm 304 on one side on one side with the abutting part of swing arm 304.As a result, the sliding resistance with swing arm 304 can be reduced, side cover 202 can be closed swimmingly.In addition, also can reduce the frictional dissipation of swing arm 304.
In addition, because relieving rod 320 can be swung, the cover 202 state lower swing bars of opening 304 are under the so irregular state of pressing position in the side, when if close side cover 202 relieving rod 320 and engaging protrusion 327 being touched, then relieving rod 320 swings can be crossed engaging protrusion 327.Thus, under cover 202 states of opening of side,, side cover 202 is normally closed even swing arm 304 is in pressing position.
Be provided with the dip plane owing to be in the front end of backer roll 302 sides at relieving rod 320, so if under the state that relieving rod 320 and engaging protrusion 327 are touched, further close side cover 202, then relieving rod 320 is upwards guided by the dip plane and is swung, and can cross engaging protrusion 327 swimmingly.Therefore, can reduce pressing mechanism is in and closes the side under the irregular state and cover 202 o'clock resistance.
In addition, remove spring 345 to the pressured relieving rod 320 of counter clockwise direction (side of swing in the opposite direction when touching engaging protrusion 327 with relieving rod 320) by utilizing, after relieving rod 320 is crossed engaging protrusion 327, the position that relieving rod 320 is positioned at open the hook portion 328 of covering 202 o'clock relieving rods 320 in the side to engage with engaging protrusion 327.
In addition, as the effect of the pressing mechanism 315 of the fixing device of the 3rd embodiment,, as shown in figure 21,, also can close the side and cover 202 even be in the so irregular state of pressing position for swing arm 304 because relieving rod 320 is supported swingably.Below utilize Figure 21 and Figure 22 to describe.Figure 21 is that expression swing arm 304 is under the pressing position state 202 closing state are covered in the side, and Figure 22 is the E-E sectional view of Figure 21.In addition, in Figure 21 and Figure 22, use identical Reference numeral to represent the parts identical, and omit the explanation of whole parts with Fig. 8.
As Figure 21 and shown in Figure 22, when swing arm 304 was in the state of pressing position, the engaging protrusion 327 of swing arm 304 was covered 202 sides than the more close side of swinging end 306B.Thereby, if under swing arm 304 is in the state of pressing position, open side cover 202, then relieving rod 320 at the front end of fixing roller 301 sides with regard to the engaging protrusion 327 of touching swing arm 304 and limited.Relieving rod 320 becomes to the side at the front end of fixing roller 301 sides and covers the conical in shape of extending below 202 side direction.If further close side cover 202 from the state that the front end and the engaging protrusion 327 of relieving rod 320 are touched, then overcome the depended on pressure of removing spring 345, the front end of relieving rod 320 is stuck projection 327 guiding, and relieving rod 320 is that rotation center is along clockwise direction swing among the figure with first fixed pin 337.As a result, the front end of relieving rod 320 is moved upward, and the hook portion 328 of relieving rod 320 is crossed engaging protrusion 327.
If hook portion 328 crosses engaging protrusion 327, then make relieving rod 320 along swing counterclockwise among the figure by the depended on pressure of removing spring 345, can make the position of the hook portion 328 of relieving rod 320 be in side shown in Figure 20 and cover 202 closing state.In addition, clamping bar 311 touches the swinging end 306B of swing arm 304 by pressure roller 313.If further side lid 202 is closed from the state that touches swinging end 306B by pressure roller 313 of clamping bar 311, then clamping bar 311 overcomes the depended on pressure of fastening spring 349 and is directed to swinging end 306B and is moved upward.When side cover 202 was closed, as shown in figure 20, the top that the front end of clamping bar 311 moves to the front end of relieving rod 320 was the second place.
As mentioned above, even be in pressing position at swing arm 304, the side covered close side cover 202 under the 202 irregular states of opening, also with common state under the same when it is closed, become state shown in Figure 20, so operation is removed in pressurization and the pressurization that can follow the switching of side cover 202 to carry out pressing mechanism 315 after this.
In addition, as shown in figure 23, also slotted hole 410 can be set on pressure rod 303, the pin 810 that will extend from device main body side face or fixing device 300 sides inserts in these slotted holes 410 and the oscillating quantity of restriction pressure rod 303.By this structure, pressure rod 303 is swung significantly in the time of can preventing to install, and with the miscellaneous part collision, damages miscellaneous part etc.In addition, as shown in figure 23, when swing arm 304 is in pressurization and removes the position, pin 810 and slotted hole 410 collisions, the moving of restriction pressure rod 303.Thus, can suppress swing arm takes place crooked in pressurization releasing position.As a result, covered 202 o'clock closing the side, can make clamping bar 311 by pressure roller 313 reliably with the front end butt of the swing part 306B of swing arm 304.
As mentioned above,, can reduce backer roll 302 and along with the action of side cover 202 fixing roller 301 be exerted pressure and pressurize and remove the resistance of action, can improve the operability of on-off action thus according to the pressing mechanism 315 of the fixing device of the 3rd embodiment.In addition, even from pressurized state and open under the irregular state of side cover 202, also can normally open and close side cover 202.Thus, can easily open the side and cover the obstruction releasing with sheet material in 202 o'clock.
In addition, the 3rd embodiment is to be applicable to by slotted hole 308 and card shotpin 309 to constitute an example of the pressing mechanism 315 of depended on pressure switching device shifter, but also can be applicable to previous Figure 24 A, Figure 24 B and pressing mechanism 315 shown in Figure 25, be made of the depended on pressure switching device shifter card shotpin 309.
In addition, in above narration, be applicable to the situation of fixing device although understand pressing mechanism, but for example, also can be applicable to a pair of rotary body and sheet material conveyors such as alignment roller, wherein, described sheet material conveyor is exerted pressure to a rotary body in a pair of rotary body, thereby this rotary body is crimped on forms pressure contact portion on another rotary body, carry sheet material is clamped in this pressure contact portion.
Those skilled in the art also can easily derive other effects and variation.Present embodiment is not limited to the specific implementations of above narration.Thereby, under the situation of the scope of the inventive concept that does not exceed appending claims and be equal to, can carry out various variations.
The application enjoys in the Japanese patent application No. 2005-287833 that formerly proposed on September 30th, 2005, Japanese patent application No. 2006-109444 that on April 12nd, 2006 formerly proposed, Japanese patent application No. 2006-216442 that on August 9th, 2006 formerly proposed and the right of priority of the Japanese patent application No. 2006-223442 application that formerly proposed on August 18th, 2006, and its full content enrolls among the application.
Claims (13)
1, a kind of sheet material conveyor is characterized in that, comprising:
A pair of rotary body;
Delivery section, it makes this rotary body be crimped on another rotary body, thereby forms pressure contact portion, and carried by described pressure contact portion clamping sheet material a rotary body pressurization in a pair of rotary body;
The pressure rod that can swing, its cardinal extremity is bearing on the fixed part, and have can with the swinging end of the swivel bearing portion butt of the rotary body of pressurized in the described rotary body;
It is distolateral that swing arm, its cardinal extremity are bearing in the swing of described pressure rod, is that benchmark has a plurality of swinging ends with described cardinal extremity, can make the change in location of the fulcrum that is supported on described base end side when swing;
Elastic body, it is hooked between base end side described in the swinging end of described swing arm and the described fixed part, and described swing arm in described rotary body is pressured,
Described elastomeric colluding hung in the position, the cardinal extremity that described swing arm is located in the position movablely is hung in colluding of described swing arm base end side, the swing position of base end side when swinging according to described swing arm, different with the swing of base end side, change with the state of the different offset in position before swing.
2, sheet material conveyor as claimed in claim 1, it is characterized in that, elastic body is hung the position colluding of described swing arm side and is changed along following direction, this direction and cardinal extremity with described swing arm are that the tangent line of swinging track of described swing arm of benchmark is close, the cardinal extremity of described swing arm can carry out displacement independently in following position, these positions are: a shaft position that is supported on cardinal extremity with elastic body in the hanging device of described fixed part and described swing arm side and described swing arm is positioned at situation on the straight line as benchmark, can cross the position of keeping on the swinging track of described straight line the pressured state of described swing arm in described rotary body; And the position that can keep the state that leave of described swing arm from described rotary body.
3, sheet material conveyor as claimed in claim 1, it is characterized in that, hang on the position described swing arm base end side, elastomeric colluding, be provided with can with collude the chimeric slotted hole of fulcrum post of hanging described elastic body end, the position of described fulcrum post on the length direction of described slotted hole changes according to the swing position of described swing arm base end side.
4, a kind of sheet material conveyor is characterized in that, comprising:
A pair of rotary body;
Delivery section, it is crimped on another rotary body this rotary body, thereby forms pressure contact portion, and carried by described pressure contact portion clamping sheet material a rotary body pressurization in a pair of rotary body;
The pressure rod that can swing, its cardinal extremity is bearing in fixed bearing portion, be provided with can with the pressurization part of the swivel bearing portion butt of the rotary body of pressurized in the described rotary body;
It is distolateral that the swing arm that can swing, its cardinal extremity are bearing in the swing of described pressure rod;
Pressing lever, it pushes described swing arm, and make described swing arm remove the position and swing to pressing position from pressurization,
Push described swing arm at described pressing lever and make it remove the position to the process of pressing position swing, the direction swing that described pressing lever is left to the swing fulcrum from described swing arm from pressurization.
5, sheet material conveyor as claimed in claim 4, it is characterized in that, remove the position at described swing arm to the process of pressing position swing from pressurization, the direction of the moment that described pressing lever is subjected to from described swing arm is switched to the direction that the swing fulcrum from described swing arm leaves.
6, sheet material conveyor as claimed in claim 4 is characterized in that,
The surface of contact of described pressing lever and described swing arm is a curved surface,
With the following moment be the boundary, switch the direction of the moment that described pressing lever is subjected to from described swing arm, this is constantly: the axial cross section by described rotary body is observed, the surface of contact of described swing arm and described pressing lever butt and following connecting line angulation are the moment of 90 degree, and described connecting line is connected the contact point of described pressing lever and described swing arm with the swing fulcrum of described pressing lever.
7, sheet material conveyor as claimed in claim 6 is characterized in that, is provided with pressured portion, and its front end with described pressing lever is pressured to the direction of the swing fulcrum of approaching described swing arm.
8, sheet material conveyor as claimed in claim 4 is characterized in that, the contact site of described pressing lever and described swing arm is the cylinder that can rotate freely.
9, sheet material conveyor as claimed in claim 4 is characterized in that, also is provided with relieving rod, and it fastens with the engaging protrusion of being located on the described swing arm, makes described swing arm remove the position swing from pressing position to pressurization,
Described swing arm is swung between pressing position and pressurization releasing these two positions, position,
Described relieving rod is supported swingably.
10, sheet material conveyor as claimed in claim 9 is characterized in that, described relieving rod is provided with the dip plane in a side that is positioned at described rotary body front end.
11, sheet material conveyor as claimed in claim 9 is characterized in that, is provided with pressured portion, and it is pressured to the direction opposite with swaying direction with described relieving rod when described relieving rod touches with described engaging protrusion.
12, sheet material conveyor as claimed in claim 9 is characterized in that, also is provided with pressing lever, and it pushes described swing arm, make described swing arm remove the position and swing to pressing position from pressurization,
Make described swing arm remove the position to the process of pressing position swing at described pressing lever, make of the direction swing of described pressing lever to the swing fulcrum that leaves described swing arm from pressurization.
13, a kind of image processing system is characterized in that, is provided with sheet material conveyor,
Described sheet material conveyor comprises:
A pair of rotary body;
Delivery section, it makes this rotary body be crimped on another rotary body, thereby forms pressure contact portion, and carried by described pressure contact portion clamping sheet material a rotary body pressurization in a pair of rotary body;
The pressure rod that can swing, its cardinal extremity is bearing on the fixed part, and have can with the swinging end of the swivel bearing portion butt of the rotary body of pressurized in the described rotary body;
It is distolateral that swing arm, its cardinal extremity are bearing in the swing of described pressure rod, is that benchmark has a plurality of swinging ends with described cardinal extremity, can make the change in location of the fulcrum that is supported on described base end side when swing;
Elastic body, it is hooked between base end side described in the swinging end of described swing arm and the described fixed part, and described swing arm in described rotary body is pressured,
Described elastomeric colluding hung in the position, the cardinal extremity that described swing arm is located in the position movablely is hung in colluding of described swing arm base end side, the swing position of base end side when swinging according to described swing arm, different with the swing of base end side, change with the state of the different offset in position before swing.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP287833/05 | 2005-09-30 | ||
| JP2005287833A JP4387345B2 (en) | 2005-09-30 | 2005-09-30 | Sheet conveying device, fixing device, and image forming apparatus |
| JP109444/06 | 2006-04-12 | ||
| JP216442/06 | 2006-08-09 | ||
| JP223442/06 | 2006-08-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1955853A true CN1955853A (en) | 2007-05-02 |
| CN100547494C CN100547494C (en) | 2009-10-07 |
Family
ID=38026728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006101646134A Active CN100547494C (en) | 2005-09-30 | 2006-09-30 | Sheet material conveyor and image processing system |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4387345B2 (en) |
| CN (1) | CN100547494C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111045306A (en) * | 2018-10-11 | 2020-04-21 | 夏普株式会社 | Belt offset correction device, fixing device and image forming apparatus |
| CN113454539A (en) * | 2019-03-14 | 2021-09-28 | 富士胶片商业创新有限公司 | Conveying device, fixing device, and image forming apparatus |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4800150B2 (en) * | 2006-04-12 | 2011-10-26 | 株式会社リコー | Sheet material conveying apparatus, fixing apparatus, and image forming apparatus |
| JP5364246B2 (en) * | 2007-06-13 | 2013-12-11 | 京セラドキュメントソリューションズ株式会社 | Image forming apparatus fixing unit structure |
| JP5014234B2 (en) * | 2008-04-17 | 2012-08-29 | 株式会社リコー | Fixing apparatus and image forming apparatus |
| JP5757971B2 (en) * | 2013-03-28 | 2015-08-05 | シャープ株式会社 | Fixing apparatus and image forming apparatus having the same |
| JP6201946B2 (en) | 2014-09-22 | 2017-09-27 | 富士ゼロックス株式会社 | Image forming apparatus |
-
2005
- 2005-09-30 JP JP2005287833A patent/JP4387345B2/en active Active
-
2006
- 2006-09-30 CN CNB2006101646134A patent/CN100547494C/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111045306A (en) * | 2018-10-11 | 2020-04-21 | 夏普株式会社 | Belt offset correction device, fixing device and image forming apparatus |
| CN113454539A (en) * | 2019-03-14 | 2021-09-28 | 富士胶片商业创新有限公司 | Conveying device, fixing device, and image forming apparatus |
| CN113454539B (en) * | 2019-03-14 | 2024-02-23 | 富士胶片商业创新有限公司 | Conveying device, fixing device, and image forming apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4387345B2 (en) | 2009-12-16 |
| CN100547494C (en) | 2009-10-07 |
| JP2007099408A (en) | 2007-04-19 |
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