CN104252123B - Fixing device and image processing system - Google Patents
Fixing device and image processing system Download PDFInfo
- Publication number
- CN104252123B CN104252123B CN201310257724.XA CN201310257724A CN104252123B CN 104252123 B CN104252123 B CN 104252123B CN 201310257724 A CN201310257724 A CN 201310257724A CN 104252123 B CN104252123 B CN 104252123B
- Authority
- CN
- China
- Prior art keywords
- bearing
- fixing roller
- jut
- breach
- center
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The present invention relates to a kind of fixing device and image processing system, this fixing device has fixing roller, two bearings being arranged on fixing roller two ends and axle bearing mount portion, wherein, the outer surface of bearing is provided with at least two the first locating part, and the circumferencial direction that this first locating part has along bearing extends and first jut at close fixing roller center；And along the axially extending of fixing roller the second jut near fixing roller end, axle bearing mount portion has the peristome that the profile with bearing is consistent, and is arranged on the part that axially traps at peristome edge, and first breach corresponding with the shape of the first locating part.Because axially trapping part can stop that bearing moves axially, side and second jut of the first breach contact, and then stop the rotation of bearing, so bearing can be firmly locked together in axle bearing mount portion, can not move axially, can not rotate such that it is able to stable support fixing roller and cannot coming off from framework.
Description
Technical field
The present invention relates to a kind of fixing device, and the image containing this fixing device forms dress
Put.
Background technology
It is provided with on the image processing systems such as printer, photocopier or facsimile machine heating source built-in
Fixing roller.Send and the formation instruction of next image when image processing system receives host computer
Time, begin to be energized to heating source, with heat fixing roll, simultaneously drive fixing roller and rotate.When
The recording medium thing of the coloured dust figure of surface attachment is through fixing roller, and this recording medium thing is fixing
Roller and the backer roll being arranged oppositely with this fixing roller are seized on both sides by the arms down and are heated and pressurized, then, and toner
As being just fixed on recording medium thing, thus complete an image and formed.
In order to make recording medium thing can stably be seized on both sides by the arms in fixing, so that formed
Image ratio is more visible, it is therefore desirable to be respectively mounted bearing at the two ends of fixing roller, fixed to support this
Two bearings are fixed in framework by shadow roller the most again.
But, owing to fixing roller can give the inner surface of bearing with lasting friction when rotating
Power, therefore, along with using the growth of time and increasing of access times, bearing can be in framework
Gradually it is shifted over, and produces when fixing roller rotates and rock, thus be unable to reach stable support
The purpose of fixing roller, there is hangover or blooming in the image that may eventually lead to the formation of,
Summary of the invention
The present invention is carried out to solve the problems referred to above, it is therefore intended that provide one to have energy
Enough stable support fixing rollers and the fixing device of bearing that cannot come off from framework, Yi Jihan
There is the image processing system of this fixing device.
The present invention to achieve these goals, have employed following structure:
<structure 1>:
The present invention provides a kind of fixing device, it is characterised in that including: fixing roller, for handle
The toner picture being attached on recording medium thing is fixed on recording medium thing；Two bearings, install
Two ends at fixing roller；Framework, has two axle bearing mount portion, is used for being respectively mounted two axles
Holding, wherein, the outer surface of bearing is provided with at least two and has the first locating part of predetermined space,
First locating part has: the circumferencial direction along bearing extends and dashes forward near the first of fixing roller center
The portion of rising；And along the axially extending of fixing roller the second jut near fixing roller end, axle
Hold installation portion and there is the peristome that the profile with bearing is consistent, be arranged on peristome edge and
For stopping the part that axially traps that bearing moves axially, and with the shape of the first locating part
The first the most corresponding breach, edge and second jut of the first breach contact, and are used for hindering
The rotation that gear shaft holds.
<structure 2>:
The present invention provides a kind of image processing system, it is characterised in that include fixing device, should
Fixing device has fixing roller, for the toner picture being attached on recording medium thing is fixed on note
In record vehicle；Two bearings, are arranged on the two ends of fixing roller；Framework, has two bearings
Installation portion, is used for being respectively mounted two bearings, and wherein, the outer surface of bearing is provided with at least two
Having the first locating part of predetermined space, the first locating part has: the circumferencial direction along bearing prolongs
Stretch and first jut at close fixing roller center；And axially extending and close along fixing roller
Second jut of fixing roller end, axle bearing mount portion has the opening that the profile with bearing is consistent
Portion, is arranged on the edge of peristome and for stopping that what bearing moved axially axially traps
Part, and first breach the most corresponding with the shape of the first locating part, the edge of the first breach
Contact with the second jut, for stopping the rotation of bearing.
The effect of invention and effect
Fixing device according to the present invention and image processing system, because at this fixing device
In, it is arranged on the axially trapping part and can stop that bearing is carried out of peristome edge of axle bearing mount portion
Moving axially, the side and the second jut that are arranged on first breach at this peristome edge connect
Touch, and then stop the rotation of bearing, so bearing can be firmly locked together in axle bearing mount portion
In, can not move axially, can not rotate, beneficially fixing roller is when rotating
Stably supported by bearing, thus avoid the image ultimately formed that hangover or blooming occur.
Accompanying drawing explanation
Fig. 1 is the axonometric chart of the image processing system of the embodiment of the present invention；
Fig. 2 is the cut-away view of the image processing system of the embodiment of the present invention；
Fig. 3 is the exploded view of the fixing device of the embodiment of the present invention；
Fig. 4 is the structural representation of the fixing roller of the embodiment of the present invention；
Fig. 5 is the schematic diagram of the drive member of the embodiment of the present invention；
Fig. 6 is the drive member of the embodiment of the present invention and the installation of fixing roller assembles figure；
Fig. 7 is the schematic diagram of the abutment end of the bearing of the embodiment of the present invention；
Fig. 8 is the schematic diagram of the non-abutment end of the bearing of the embodiment of the present invention；
Fig. 9 is the structure chart of the framework of the embodiment of the present invention；
Figure 10 is the structure chart of the first locating part of the embodiment of the present invention；
Figure 11 is the bearing of the embodiment of the present invention and the installation of framework assembles figure；
Figure 12 is the side view of Figure 11；
Figure 13 is that the installation of the fixing roller of the embodiment of the present invention, bearing and framework assembles figure；
Figure 14 is the axonometric chart of the drive end side cover of the embodiment of the present invention；
Figure 15 is that the installation of drive end side cover, drive member and the bearing of the embodiment of the present invention assembles
Schematic diagram；
Figure 16 is that the A of Figure 15 is to schematic diagram；
Figure 17 is the axonometric chart of the driven end of the fixing roller of the embodiment of the present invention；
Figure 18 is the front view of the driven end of the fixing roller of the embodiment of the present invention；
Figure 19 is the structural representation of the driven end bracket part of the embodiment of the present invention；
Figure 20 is the bearing of the embodiment of the present invention and the installation of driven end bracket part assembles schematic diagram；
Figure 21 is the side view of Figure 20；
Figure 22 is that the installation of the drive member of the embodiment of the present invention, bearing and fixing roller assembles figure；
Figure 23 is the axonometric chart of the driven end side cover of the embodiment of the present invention；
Figure 24 is the front view of the driven end side cover of the embodiment of the present invention；And
Figure 25 is the assembling figure of the fixing device of the embodiment of the present invention.
Detailed description of the invention
Formed with the embodiment fixing device to the present invention relates to and image below in conjunction with the accompanying drawings
Device is described in detail.
The present invention provides a kind of fixing device, it is characterised in that including: fixing roller, for handle
The toner picture being attached on recording medium thing is fixed on recording medium thing；Two bearings, install
Two ends at fixing roller；Framework, has two axle bearing mount portion, is used for being respectively mounted two axles
Holding, wherein, the outer surface of bearing is provided with at least two and has the first locating part of predetermined space,
First locating part has: the circumferencial direction along bearing extends and dashes forward near the first of fixing roller center
The portion of rising；And along the axially extending of fixing roller the second jut near fixing roller end, axle
Hold installation portion and there is the peristome that the profile with bearing is consistent, be arranged on peristome edge and
For stopping the part that axially traps that bearing moves axially, and with the shape of the first locating part
The first the most corresponding breach, edge and second jut of the first breach contact, and are used for hindering
The rotation that gear shaft holds.
It addition, in above-mentioned fixing device, it is also possible to there is such feature: the first jut and
Second jut forms convex shape projection.
It addition, in above-mentioned fixing device, it is also possible to there is such feature: the first locating part is
Two, angle formed by the center of two the first locating parts and the circle center line connecting of bearing is 120 °,
First breach is two, and the center of two the first breach is formed folder with the line at peristome center
Angle is 120 °.
It addition, in above-mentioned fixing device, it is also possible to there is such feature: the outer surface of bearing
Being additionally provided with at least one second locating part, the circumferencial direction that the second locating part has along bearing extends
And near the 3rd jut at fixing roller center, the 3rd protruding part in two the first locating parts it
Between, there is the shape identical with the first jut, the edge of the peristome of axle bearing mount portion also sets
There is second breach the most corresponding with the shape of the second locating part.
It addition, in above-mentioned fixing device, it is also possible to there is such feature: the second locating part is
One, the center of the 3rd jut and the circle center line connecting of bearing and the center of the first jut and axle
Angle formed by the circle center line connecting held is 120 °, and the second breach is one, the center of the second breach
Formed by the line at peristome center and the line at the center of the first breach and peristome center
Angle is 120 °.
It addition, in above-mentioned fixing device, it is also possible to there is such feature: axially trapping part is
Bending hook, bending hook profile is L-shaped, raised also to fixing roller center position from peristome edge
And towards the axle bending of fixing roller.
It addition, above-mentioned fixing device also includes: drive member, it is connected with the drive end of fixing roller
Connect, be used for driving fixing roller to rotate；And drive end side cover, it is used for drive member is installed,
Wherein, drive end side lid is additionally provided with the screens corresponding with the second jut of the first locating part
Pin, contacts with the side of the non-of the second jut with the EDGE CONTACT of the first breach, is used for hindering
What gear shaft held rotates backward.
It addition, above-mentioned fixing device also includes: driven end side cover, for install fixing roller from
Moved end, wherein, driven end side cover is additionally provided with corresponding with the second jut of the first locating part
Blocking pin, contact with the side of the non-of the second jut with the EDGE CONTACT of the first breach,
For stoping rotating backward of bearing.
Further, above-mentioned fixing device also includes: spacing ring, is enclosed within the driven end of fixing roller,
Abut against with the side of the close driven end of bearing, for limiting moving axially of bearing, wherein,
Spacing ring has at least one bending part, and the driven end of fixing roller is provided with at least one and bending part
The installation through hole matched, is used for installing bending part.
The present invention also provides for a kind of image processing system, it is characterised in that including: fixing device,
For the toner picture being attached on recording medium thing is fixed on recording medium thing, this fixing dress
Put and include: fixing roller, for the toner picture being attached on recording medium thing is fixed on record matchmaker
On Jie's thing；Two bearings, are arranged on the two ends of fixing roller；Framework, has two bearings and installs
Portion, is used for being respectively mounted two bearings, and wherein, the outer surface of bearing is provided with at least two to be had
First locating part of predetermined space, the first locating part has: the circumferencial direction along bearing extends also
The first jut near fixing roller center；And along the axially extending of fixing roller and near fixing
Second jut of roll end, axle bearing mount portion has the peristome that the profile with bearing is consistent,
It is arranged on the edge of peristome and for stopping that what bearing moved axially axially traps part,
And first breach respectively the most corresponding with the shape of the first locating part, the edge of the first breach and the
Two juts contact, for stopping the rotation of bearing.
It addition, in above-mentioned fixing device, it is also possible to there is such feature: the first jut and
Second jut forms convex shape projection.
It addition, in above-mentioned fixing device, it is also possible to there is such feature: the first locating part is
Two, angle formed by the center of two the first locating parts and the circle center line connecting of bearing is 120 °,
First breach is two, and the center of two the first breach is formed folder with the line at peristome center
Angle is 120 °.
It addition, in above-mentioned fixing device, it is also possible to there is such feature: the outer surface of bearing
Being additionally provided with at least one second locating part, the circumferencial direction that the second locating part has along bearing extends
And near the 3rd jut at fixing roller center, the 3rd protruding part in two the first locating parts it
Between, there is the shape identical with the first jut, the edge of the peristome of axle bearing mount portion also sets
There is second breach the most corresponding with the shape of the second locating part.
It addition, in above-mentioned fixing device, it is also possible to there is such feature: the second locating part is
One, the center of the 3rd jut and the circle center line connecting of bearing and the center of the first jut and axle
Angle formed by the circle center line connecting held is 120 °, and the second breach is one, the center of the second breach
Formed by the line at peristome center and the line at the center of the first breach and peristome center
Angle is 120 °.
It addition, in above-mentioned fixing device, it is also possible to there is such feature: axially trapping part is
Bending hook, bending hook profile is L-shaped, raised also to fixing roller center position from peristome edge
And towards the axle bending of fixing roller.
It addition, above-mentioned fixing device also includes: drive member, it is connected with the drive end of fixing roller
Connect, be used for driving fixing roller to rotate；And drive end side cover, it is used for drive member is installed,
Wherein, drive end side lid is additionally provided with the screens corresponding with the second jut of the first locating part
Pin, contacts with the side of the non-of the second jut with the EDGE CONTACT of the first breach, is used for hindering
What gear shaft held rotates backward.
It addition, above-mentioned fixing device also includes: driven end side cover, for install fixing roller from
Moved end, wherein, driven end side cover is additionally provided with corresponding with the second jut of the first locating part
Blocking pin, contact with the side of the non-of the second jut with the EDGE CONTACT of the first breach,
For stoping rotating backward of bearing.
Further, above-mentioned fixing device also includes: spacing ring, is enclosed within the driven end of fixing roller,
Abut against with the side of the close driven end of bearing, for limiting moving axially of bearing, wherein,
Spacing ring has at least one bending part, and the driven end of fixing roller is provided with at least one and bending part
The installation through hole matched, is used for installing bending part.
Embodiment
Fig. 1 is the axonometric chart of the image processing system of the embodiment of the present invention.
Fig. 2 is the cut-away view of the image processing system of the embodiment of the present invention.
As shown in Figure 1, 2, the type of the image processing system 1 in the present embodiment is minicomputer,
For carrying out image formation on the such as recording medium such as paper, film thing, including sheet feed section 35,
Conveying roller 36, graphics processing unit 38, fixing device 2 and paper discharge unit 37.
Sheet feed section 35 is used for holding recording medium thing.
Conveying roller 36 is delivered to image procossing list for the recording medium thing held by sheet feed section 35
Unit 38.
The image shape that in graphics processing unit 38 reception figure, not shown epigyny device sends over
One-tenth information, and on recording medium thing, form the toner picture corresponding with this image forming information.
Fig. 3 is the exploded view of the fixing device of the embodiment of the present invention.
As it is shown on figure 3, fixing device 2 is for fixing the toner picture being attached on recording medium thing
On this recording medium thing, thus form permanent image, including fixing roller 5, backer roll 4, frame
3, two bearings 7 of body, drive member 8, driving ring 9, spacing ring 10 and two side covers.
Fig. 4 is the structural representation of the fixing roller of the embodiment of the present invention.
As shown in Figure 4, fixing roller 5 is for carrying out heat fixation to the toner picture on recording medium thing.
Fixing roller 5 is built-in with the not shown heating source for heating fixing roller 5 in figure.When fixed
When shadow roller 5 rotates, this heating source can heat up, and transfers heat to fixing roller 5, and further
Pass to be fixed the recording medium thing of roller 5 conveying, so that this toner arrives as heat fixation
On recording medium thing.
Fixing roller 5 two ends vertically are respectively drive end 27 and driven end 28.Drive end
27 drive member not shown with figure are connected, and carry out rotating and move under the drive of drive member
Make.Drive end 27 is provided with two the first through holes 15, and the two the first through hole 15 is at fixing roller 5
Central shaft both sides be distributed axisymmetricly.Driven end 28 is positioned at the offside of drive end 27, the most also
Being provided with two the second through holes 16, the two the second through hole 16 is in the central shaft both sides of fixing roller 5 also
It is distributed axisymmetricly.
Backer roll 4 is crimped on fixing roller 5 with certain pressure, seizes record on both sides by the arms together with fixing roller 5
Vehicle, and give recording medium thing with certain pressure.When recording medium thing is fixed roller 5 He
When backer roll 4 seizes conveying on both sides by the arms, this recording medium thing can be heated and pressurized simultaneously, thus toner picture
Recording medium thing is fixed up, forms permanent image.
Fig. 5 is the schematic diagram of the drive member of the embodiment of the present invention.
As it is shown in figure 5, drive member 8 is connected with the drive end 27 of fixing roller 5, it is used for driving
This fixing roller 5 rotates, to drive the conveying of recording medium thing.In the present embodiment, drive
Component 8 is for driving gear, but the present embodiment is not drawn into driving the gear shape of gear.Drive structure
The side that the drive end 27 with fixing roller 5 of part 8 is connected is provided with two drive end through holes 14.
Driving ring 9 is circular open loop structure, has two bending parts 13 to center of circle bending, this
The shape of two bending parts 13 is consistent with two drive end through holes 14, it is possible to embeds the two and drives
In moved end through hole 14.Ring 9 is driven to be made up of tension materials, when the bending part 13 driving ring 9 embeds
Time in two drive end through holes 14, the tension force of ring 9 is driven to ensure that bending part 13 tightly fastens
In drive end through hole 14, and it is unlikely to outwards to deviate from, so that it is guaranteed that drive ring 9 and drive end
Combining closely of through hole 14.
Fig. 6 is the drive member of the embodiment of the present invention and the installation of fixing roller assembles figure.
As shown in Figure 6, the drive end through hole 14 position in drive member 8 and the first through hole 15
Position on fixing roller 5 is consistent, the shape of shape also with the first through hole 15 of drive end through hole 14
Shape is consistent, and therefore, when drive member 8 and fixing roller 5 carrying out installation and assembling, first will drive
Drive end through hole 14 and the first through hole 15 of the drive end 27 of fixing roller 5 on component 8 align, so
After the bending part 13 on ring 9 will be driven again to embed in drive end through hole 14 and the first through hole 15.By
In the tension force effect of bending part 13 self, so bending part 13 can be by drive end through hole 14 and first
Through hole 15 is tightly fastened togather, and makes drive member 8 can drive the drive end 27 of fixing roller 5
Make synchronous axial system, and be unlikely to skidding.
Fig. 7 is the schematic diagram of the abutment end of the bearing of the embodiment of the present invention.
Fig. 8 is the schematic diagram of the non-abutment end of the bearing of the embodiment of the present invention.
As shown in Figure 7,8, the profile of bearing 7 is annular, the two ends in the axial direction of fixing roller 5
It is respectively abutment end 30 and non-abutment end 31, is radially divided into inner surface and outer surface.Bearing 7
Inner surface fasten with the end of fixing roller 5 and be connected, but be enclosed within the end of fixing roller 5,
And with its sliding contact.In the present embodiment, bearing 7 number has two, is arranged on fixing roller 5
Two ends, one of them is enclosed within the drive end 27 of fixing roller 5, and another one is enclosed within fixing roller 5
Driven end 28 on.
The outer surface of bearing 7 is provided with two the first locating parts 32 and second locating part 40.
Two the first locating part 32 predetermined distances on the outer surface of bearing 7, i.e., two
Angle α formed by the center of the first locating part 32 and the circle center line connecting of bearing 7 is 120 °.First
Locating part 32 has the first jut 17 and the second jut 18.First jut 17 is along bearing 7
Circumferencial direction extend and near fixing roller 5 center, axial along fixing roller 5 of the second jut 18
Extend and near fixing roller 5 end.First jut 17 and the second jut 18 are along non-abutting
31 centers are held to form convex shape projection to the direction of abutment end 30 line of centres, i.e., convex shape
Tip end is the second jut 18, and butt end is the first jut 17, and the first jut 17 is close
The abutment end 30 of bearing 7, the second jut 18 is near the non-abutment end 31 of bearing 7, and is positioned at
On centrage in the axial direction along fixing roller 5 of the first jut 17.First jut 17 and
The thickness sum of two juts 18 is more than or equal to the thickness of bearing 7, in the present embodiment, first
The thickness sum of jut 17 and the second jut 18 is equal to the thickness of bearing 7.
Second locating part 40 respectively with two the first locating parts 32 also phase on the outer surface of bearing 7
Every preset distance, i.e., the center of the second locating part 40 and the circle center line connecting of bearing 7 and the first limit
Angle formed by the center of part 32, position and the circle center line connecting of bearing 7 is 120 °.Second locating part 40
There is the circumferencial direction along bearing 7 extend and the 3rd jut 41 at close fixing roller 5 center, the
Three juts 41, between two the first locating parts 32, have identical with the first jut 41
Shape.In the present embodiment, the structure of the second locating part 40 and the first locating part 32 are different, because of
Be the second locating part 40 mainly play guide when bearing 7 is installed its install effect, i.e.,
First the second locating part 40 is alignd with predetermined installation site when bearing 7 is installed, carry out the most again
Install.If the structure of the second locating part 40 is as the first locating part 32, then just do not have
Guide installation effect.Meanwhile, the second locating part 40 also acts as and stops bearing 7 to move axially
Effect, and the rotation of bearing 7 can not be stoped.But, the structure of the second locating part 40 also may be used
Identical with the first locating part 32 to be set to.Although this second locating part 40 loses guiding and installs
Effect, but bearing 7 can be simultaneously by two the first locating parts 32 and second locating part
40 is the most spacing, thus further enhancing the steadiness of bearing 7.
Fig. 9 is the structure chart of the framework of the embodiment of the present invention.
As it is shown in figure 9, framework 3 includes two bracket part.The two bracket part is positioned at framework 3
Along fixing roller 5 axially on both sides, structure is specular.Wherein, driving of fixing roller 5 it is positioned at
The bracket part of moved end 27, as drive end bracket part 6, is positioned at the bracket of the driven end 28 of fixing roller 5
Portion is as driven end bracket part 19.
Drive end bracket part 6, for installing one of them end of bearing 7 and backer roll 4, has
Backer roll installation portion 20, axle bearing mount portion 22 and axially trap part 24.In figure indicated by arrow
Direction is the direction of rotation of fixing roller 5.
The profile of backer roll installation portion 20 matches with the end of backer roll 4, is used for installing pressurization
The end of roller 4.
Axle bearing mount portion 22 has the peristome 42 that the profile with bearing 7 is consistent, and is used for installing axle
Hold 7.The edge of peristome 42 is provided with two the first breach 33 and second breach 43.These are two years old
Individual first breach 33 is towards the radial opening of peristome 42.The center of two the first breach 33 with open
The line angulation at the center of oral area 42 is 120 °.The profile of each first breach 33 with
The profile of the first jut 17 of the first locating part 32 is consistent, and therefore, is pacifying bearing 7
During dress, the first jut 17 of the first locating part 32 just can pass this first breach 33.The
Two breach 43 are also towards the radial opening of peristome 42, and the profile of the second breach 43 is spacing with second
The shape of part 40 is corresponding, the center of the second breach 43 and the line and first at peristome 42 center
Angle formed by the center of breach 33 and the line at peristome 42 center is 120 °.
Axially trap part 24 and be positioned at the edge of peristome 42, along fixing roller 5 axially towards fixing
Roller 5 centrally disposed, is used for stopping that bearing 7 moves axially.In the present embodiment, axially hinder
Block piece 24 is bending hook 24.This bending hook 24 be shaped as L-shaped, from peristome 42 edge to fixed
Shadow roller 5 center position projection and to the axle bending of fixing roller 5.The arm of bending hook 24 is fixed on
The side at close fixing roller 5 center of peristome 42, the hook portion of bending hook 24 is towards fixing roller 5
Axis arrange.Determined by plane determined by the hook portion of three bending hooks 24 and peristome 42
Plane is parallel.
Figure 10 is the structure chart of the first locating part of the embodiment of the present invention.
Such as Fig. 9, shown in 10, peristome 42 and axially trap spacing d of part 242Equal to the first limit
The thickness d of the first jut 17 of position part 323, therefore, the first jut 17 can just embed
Peristome 42 and axially trapping in the cavity that part 24 is formed.Peristome 42 and axially trap part 24
Spacing d2Being also equal to the thickness of the 3rd jut 41 of the second locating part 40, therefore, the 3rd dashes forward
Play portion 41 also to be able to just embed peristome 42 and axially trap in the space that part 24 is formed.Cause
The first jut 17 and the 3rd jut 41 for bearing 7 by peristome 42 and axially trap part 24
Regulation, so bearing 7 cannot moving axially along fixing roller 5.
Figure 11 is the bearing of the embodiment of the present invention and the installation of framework assembles figure.
Figure 12 is the side view of Figure 11.
As shown in Figure 11,12, the arrow within bearing 7 represents bearing 7 rotation side when mounted
To, the arrow outside bearing 7 represents the rotation direction of fixing roller 5.When bearing 7 is installed
Time, the second locating part 40 is directed at the second breach 43, then the first projection of the first locating part 32
Portion 17 initially passes through the first breach 33, and the second locating part 40 is through the second breach 43 simultaneously, until axle
Holding the abutment end 30 of 7 to abut against with bending hook 24, then the first jut 17 is peristome 42 He
Axially trap in the space that part 24 is formed towards the direction identical with the rotation direction of fixing roller 5
Rotate, make the first jut 17 and the first breach 33 stagger a segment distance, simultaneously the second limit
Position the 3rd jut 41 of part 40 and the second breach 43 also stagger a segment distance.Because the first projection
The thickness d in portion 173Equal to peristome 42 and spacing d of bending hook 242, so the first jut 17
Being limited between edge and the bending hook 24 of the first breach 33 cannot axial along fixing roller 5
Move.
When bearing 7 is installed, the second jut 18 of the first locating part 32 of bearing 7
Rotate with the tracks that is shaped as of the first breach 33.When the first locating part 32 turns to it
When second jut 18 is stopped by the edge part 25 of the first breach 33, bearing 7 just cannot be further continued for
Rotate.In the present embodiment, when bearing 7 is installed, by bearing 7 towards with fixing roller 5
The identical direction of rotation direction rotate.When the second jut 18 of the first locating part 32 is by first
When the edge part 25 of breach 33 stops, bearing 7 cannot be along the rotation direction phase with fixing roller 5
Same direction is rotated further, thus prevents bearing 7 from rotating along with the rotation of fixing roller 5.
Figure 13 is that the installation of the fixing roller of the embodiment of the present invention, bearing and framework assembles figure.
As shown in figure 13, the drive end 27 of fixing roller 5 passes through to drive through bearing 7 with drive member 8
Rotating ring 9 is connected, and bearing 7 is arranged in the axle bearing mount portion 22 of drive end bracket part 6.Bearing 7
Abutment end 30 abut against with bending hook 24, non-abutment end 31 offsets with the housing of drive member 8
Connect.First jut 17 of the first locating part 32 of bearing 7 offsets with the edge of the first breach 33
Connect.Because bearing 7 is limited by the edge of bending hook 24, housing and the first breach 33, institute
Can be secured firmly in axle bearing mount portion 22, and not moving axially to fixing roller 5.
Figure 14 is the axonometric chart of the drive end side cover of the embodiment of the present invention.
Figure 15 is that the installation of drive end side cover, drive member and the bearing of the embodiment of the present invention assembles
Schematic diagram.
Figure 16 is that the A of Figure 15 is to schematic diagram.
Such as Figure 14, shown in 15 and 16, the number of side cover is two, respectively drive end side cover 11
With driven end side cover.Drive end side cover 11 is positioned near the drive end 27 of fixing roller 5, is used for pacifying
Dress drive member 8.Drive end side cover 11 is provided with the second jut 18 with the first locating part 32
The position blocking pin 26 that is consistent of position.This position blocking pin 26 and non-and first breach of the second jut 18
33 edge part 25 contact side abut against, for stop bearing 7 along with install time rotation
The direction turning in opposite direction rotates.Arrow in Figure 15 and Figure 16 represents the rotation side of fixing roller 5
To, also illustrate that bearing 7 direction of rotation when mounted simultaneously.In the present embodiment, because bearing 7
Direction of rotation when mounted is consistent with the direction of rotation of fixing roller 5, so position blocking pin 26 also can
Bearing 7 is stoped to rotate along the direction contrary with the direction of rotation of fixing roller 5.
As shown in Figure 10, because the one of the second jut 18 of the first locating part 32 on bearing 7
Side is abutted by the position blocking pin 26 on drive end side cover 11, and the opposite side quilt of this second jut 18
The edge part 25 of the first breach 33 abuts, so bearing 7 is fastened to position blocking pin 26 and first and lacks
Between the edge part 25 of mouth 33, both cannot be towards the direction identical with the direction of rotation of fixing roller 5
Rotate, also cannot rotate towards the direction contrary with the direction of rotation of fixing roller.
To sum up, because the bearing after An Zhuaning 7 can not be axially moveable, again can not rotary motion,
It is hereby ensured that bearing 7 will not come off in use, beneficially the stable operation of fixing roller 5,
Thus greatly reduce the out of order probability of fixing device 2.
Figure 17 is the axonometric chart of the driven end of the fixing roller of the embodiment of the present invention.
Figure 18 is the front view of the driven end of the fixing roller of the embodiment of the present invention.
Such as Figure 17, shown in 18, spacing ring 10 is positioned at the driven end 28 of fixing roller 5, its structure and
Material is just the same with driving ring 9, and the two can be general.The bending part of spacing ring 10 is snapped into
In second through hole 16 of the driven end 28 of fixing roller 5.Because spacing ring 10 and driving ring 9 are common
Design, it is possible to reduce the quantity of the mould of part and manufacture part, thus reduces fixing
The production cost of device 2, also can improve the packaging efficiency of part simultaneously.
Figure 19 is the structural representation of the driven end bracket part of the embodiment of the present invention.
As shown in figure 19, driven end bracket part 19 is positioned at the driven end 28 of fixing roller 5, its structure
It is specular with the structure of drive end bracket part 6, is used for another one bearing 7 and pressurization are installed
The another one end of roller 4.The direction of arrow in figure represents the rotation direction of fixing roller 5.
Figure 20 is the bearing of the embodiment of the present invention and the installation of driven end bracket part assembles schematic diagram.
Figure 21 is the side view of Figure 20.
Such as Figure 20, shown in 21, bearing 7 at the mounting means of driven end bracket part 19 with other one
Individual bearing 7 is the same at the mounting means of drive end bracket part 6.The direction of arrow in figure represents this reality
Execute the rotation direction when mounted of the bearing 7 in example.In the present embodiment, bearing 7 is when mounted
Rotation direction is also consistent with the rotation direction of fixing roller 5, and the structure of driven end bracket part 19
Being specular with the structure of drive end bracket part 6, therefore, bearing 7 can be locked in driven
In end breaket portion 19, can not rotate along the direction identical with the rotation direction of fixing roller 5,
Can not be along the axially-movable of fixing roller 5.
Figure 22 is that the installation of the drive member of the embodiment of the present invention, bearing and fixing roller assembles figure.
As shown in figure 22, the driven end 28 of fixing roller 5 runs through bearing 7.Bearing 7 is arranged on driven
In the peristome of the axle bearing mount portion in end breaket portion 19, its abutment end 30 and the bending of this peristome
Hook abuts against, and non-abutment end 31 abuts against with spacing ring 10.Because this bearing 7 receives folding simultaneously
Crotch, spacing ring 10 and the restriction of peristome self structure, therefore can not be to the axle of fixing roller 5
To movement.
Figure 23 is the axonometric chart of the driven end side cover of the embodiment of the present invention.
Figure 24 is the front view of the driven end side cover of the embodiment of the present invention.
Such as Figure 23, shown in 24, driven end side cover 12 is positioned near the driven end 28 of fixing roller 5,
For installing the driven end 28 of fixing roller 5.A blocking pin 39 it also is provided with on driven end side cover 12,
This blocking pin 39 position on driven end side cover 12 and position blocking pin 26 are on drive end side cover 11
Position be specular, therefore, in the present embodiment, blocking pin 39 also be able to stop bearing
7 rotate along the direction contrary with direction of rotation when installing.Arrow in figure represents fixing roller 5
Direction of rotation, also illustrate that bearing 7 direction of rotation when mounted simultaneously.Therefore, blocking pin
39 also are able to stop bearing 7 to rotate along the direction contrary with the direction of rotation of fixing roller 5.
Figure 25 is the assembling figure of the fixing device of the embodiment of the present invention.
As shown in figure 25, the drive end 27 of fixing roller 5 passes through one of bearing 7, by driving
Ring 9 locks together with drive member 8, and the driven end 28 of fixing roller 5 is through another one bearing 7 and limit
Position ring 10 locks together.Two bearings 7 are locked to drive end bracket part 6 and driven end bracket part respectively
In 19.The bearing 7 being locked in drive end bracket part 6 due to by bending hook 24, housing,
The edge of one breach 33 limit and cannot moving axially along fixing roller 5.Simultaneously as should
Bearing 7 is limited by edge part and the position blocking pin 26 of the first breach 33 and cannot be carried out rotating.
Because the structure of driven end bracket part 19 is specular with the structure of drive end bracket part 6, institute
It also is able to limit the moving axially and rotating of bearing 7 being positioned at this end with driven end bracket part 19.
Owing to bearing 7 structure at fixing roller 5 two ends is just the same, it is possible to realize common design, therefore
The processing mold quantity of parts can be reduced, advantageously reduce production cost.
The recording medium thing that paper discharge unit 37 is formed for fixing device 2 completes image is discharged, with
Just user reads, and so far completes an image formation action.
The effect of embodiment and effect:
Fixing device according to the present embodiment and image processing system, because at this fixing device
In, it is arranged on the axially trapping part and can stop that bearing is carried out of peristome edge of axle bearing mount portion
Moving axially, the side and the second jut that are arranged on first breach at this peristome edge connect
Touch, and then stop the rotation of bearing, so bearing can be firmly locked together in axle bearing mount portion
In, can not move axially, can not rotate, beneficially fixing roller is when rotating
Stably supported by bearing, thus avoid the image ultimately formed that hangover or blooming occur.
Further, since the bearing arrangement being positioned at fixing roller two ends is the same, it is possible to realize common
Change design, not only reduce the quantity of processing mold, and improve packaging efficiency.
Claims (10)
1. a fixing device, it is characterised in that including:
Fixing roller, for being fixed on described record the toner picture being attached on recording medium thing
In vehicle；
Two bearings, are arranged on the two ends of described fixing roller；And
Framework, has two axle bearing mount portion, is used for being respectively mounted said two bearing,
Wherein, the outer surface of described bearing be provided with at least two have predetermined space first limit
Position part, described first locating part has: the circumferencial direction along described bearing extends and near institute
State first jut at fixing roller center；And axially extending and close along described fixing roller
Second jut of described fixing roller end,
Described axle bearing mount portion has the peristome that the profile with described bearing is consistent, and is arranged on
The edge of described peristome and for stopping that what described bearing moved axially axially traps
Part, and at least two respectively the most corresponding with the shape of described at least two the first locating part the
One breach, the edge of described first breach contacts with described second jut, is used for stopping
The rotation of described bearing.
Fixing device the most according to claim 1, it is characterised in that:
Wherein, described first jut and described second jut form convex shape projection.
Fixing device the most according to claim 2, it is characterised in that:
Wherein, described first locating part is two, the center of two described first locating parts with
Angle formed by the circle center line connecting of described bearing is 120 °,
Described first breach is two, the center of two described first breach and described peristome
Angle formed by the line at center is 120 °.
Fixing device the most according to claim 1, it is characterised in that:
Wherein, the outer surface of described bearing is additionally provided with at least one second locating part, and described
The circumferencial direction that two locating parts have along described bearing extends and near described fixing roller center
3rd jut, described 3rd protruding part, between two described first locating parts, has
The shape identical with described first jut,
The edge of the described peristome of described axle bearing mount portion is additionally provided with and described second locating part
Respectively corresponding the second breach of shape.
Fixing device the most according to claim 4, it is characterised in that:
Wherein, described second locating part is one, the center of described 3rd jut and described
The center of the circle center line connecting of bearing and described first jut and the circle center line connecting institute of described bearing
The angle become is 120 °,
Described second breach is one, the center of described second breach and described peristome center
The center of line and described first breach and the line at described peristome center formed by angle
It it is 120 °.
Fixing device the most according to claim 1, it is characterised in that:
Wherein, described in axially trap part be bending hook, described bending hook profile is L-shaped, from institute
State that peristome edge is raised to described fixing roller center position and axle towards described fixing roller
Bending.
Fixing device the most according to claim 1, it is characterised in that also include:
Drive member, is connected with the drive end of described fixing roller, is used for driving described fixing
Roller rotates；And
Drive end side cover, is used for installing described drive member,
Wherein, described drive end side lid is additionally provided with and described the second of described first locating part
The position blocking pin that jut is corresponding, with the non-of described second jut and described first breach
The side of EDGE CONTACT contacts, for stopping rotating backward of described bearing.
Fixing device the most according to claim 7, it is characterised in that also include:
Driven end side cover, for installing the driven end of described fixing roller,
Wherein, described driven end side cover is additionally provided with and described the second of described first locating part
The blocking pin that jut is corresponding, with the non-of described second jut and described first breach
The side of EDGE CONTACT contacts, for stopping rotating backward of described bearing.
Fixing device the most according to claim 8, it is characterised in that also include:
Spacing ring, is enclosed within the driven end of described fixing roller, with described bearing close described from
The side of moved end abuts against, for limiting moving axially of described bearing,
Wherein, described spacing ring has at least one bending part,
The driven end of described fixing roller is provided with at least one installation matched with described bending part
Through hole, is used for installing described bending part.
10. an image processing system, it is characterised in that including:
Fixing device, for being fixed on described note the toner picture being attached on recording medium thing
In record vehicle,
Wherein, described fixing device is to record for any one in claim 1 to claim 9
Described fixing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310257724.XA CN104252123B (en) | 2013-06-25 | 2013-06-25 | Fixing device and image processing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310257724.XA CN104252123B (en) | 2013-06-25 | 2013-06-25 | Fixing device and image processing system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104252123A CN104252123A (en) | 2014-12-31 |
| CN104252123B true CN104252123B (en) | 2016-08-17 |
Family
ID=52187142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310257724.XA Active CN104252123B (en) | 2013-06-25 | 2013-06-25 | Fixing device and image processing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104252123B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017072713A (en) * | 2015-10-07 | 2017-04-13 | 株式会社リコー | Fixing device and image forming apparatus |
| JP6638367B2 (en) * | 2015-12-14 | 2020-01-29 | 富士ゼロックス株式会社 | Roll support device, transport device using the support device, fixing device, and image forming device |
| CN112415876A (en) * | 2020-12-01 | 2021-02-26 | 上海富士施乐有限公司 | Mounting structure of photographic fixing roller bearing |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05134573A (en) * | 1991-03-01 | 1993-05-28 | Ricoh Co Ltd | Structure for mounting bearing of heating roller |
| JPH05232828A (en) * | 1992-02-25 | 1993-09-10 | Sharp Corp | Fixing device |
| JP2008304503A (en) * | 2007-06-05 | 2008-12-18 | Panasonic Corp | Fixing device, and image forming device |
| CN102193454A (en) * | 2010-03-19 | 2011-09-21 | 柯尼卡美能达商用科技株式会社 | Fixing device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3274769B2 (en) * | 1994-07-28 | 2002-04-15 | キヤノン株式会社 | Fixing device |
-
2013
- 2013-06-25 CN CN201310257724.XA patent/CN104252123B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05134573A (en) * | 1991-03-01 | 1993-05-28 | Ricoh Co Ltd | Structure for mounting bearing of heating roller |
| JPH05232828A (en) * | 1992-02-25 | 1993-09-10 | Sharp Corp | Fixing device |
| JP2008304503A (en) * | 2007-06-05 | 2008-12-18 | Panasonic Corp | Fixing device, and image forming device |
| CN102193454A (en) * | 2010-03-19 | 2011-09-21 | 柯尼卡美能达商用科技株式会社 | Fixing device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104252123A (en) | 2014-12-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU2758763C1 (en) | Electrophotographic imaging apparatus, developing apparatus and coupling element | |
| CN104252123B (en) | Fixing device and image processing system | |
| JP5413427B2 (en) | Image forming apparatus | |
| JP2014134788A5 (en) | ||
| JP2017142473A5 (en) | ||
| RU2015128302A (en) | TECHNOLOGICAL CARTRIDGE AND IMAGE DEVICE | |
| RU2009126579A (en) | TECHNOLOGICAL CARTRIDGE AND IMAGE DEVICE | |
| CN106610572A (en) | Photosensitive drum drive assembly | |
| RU2018136383A (en) | CARTRIDGE AND DRUM ASSEMBLY FOR ELECTROPHOTOGRAPHIC IMAGE DEVICE | |
| RU2014105467A (en) | INCLUDING DEVELOPER BLOCK, TECHNOLOGICAL CARTRIDGE AND ELECTROPHOTOGRAPHIC IMAGE FORMING DEVICE | |
| JP2015111221A5 (en) | ||
| WO2008078368A1 (en) | Planetary movement type sliding device | |
| JP2014119534A5 (en) | ||
| RU2014105468A (en) | HEATING DEVICE | |
| CN208844188U (en) | Plated film pallet and coating system | |
| JP2018055024A (en) | Developing cartridge | |
| CN110323892A (en) | Motor brake module | |
| US8579287B1 (en) | High speed rotary nip diverter | |
| CN103425028B (en) | Fixing device and image forming apparatus | |
| US11097914B2 (en) | Medium conveying device, recording device, and method for determining skewing state of conveyance belt | |
| EP2078991A3 (en) | An image forming apparatus, a developing device and an image forming method | |
| JP2718991B2 (en) | Paper feed mechanism | |
| JP5731173B2 (en) | Sheet insertion device | |
| JP2008020029A (en) | Locking structure for rotary member | |
| TWI715603B (en) | Synchronizer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |