CN207676121U - Developing apparatus - Google Patents
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- CN207676121U CN207676121U CN201721610783.0U CN201721610783U CN207676121U CN 207676121 U CN207676121 U CN 207676121U CN 201721610783 U CN201721610783 U CN 201721610783U CN 207676121 U CN207676121 U CN 207676121U
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- side seal
- scraper
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Abstract
The utility model provides developing apparatus.The developing apparatus has：Developer roll；Frame supports developer roll；Side seal configures the end in the axial direction of developer roll and between frame, and is contacted with developer roll；And lower seal, it is contacted with developer roll, is formed as the sheet extended in the axial direction, the axial end of the lower seal is configured in a manner of be overlapped with side seal, and the axial end of the lower seal is presented axially in and locates in the outer part than side seal, frame has：First part, is located at the axially inner side of side seal, and is contacted with side seal；And second part is located at the upstream side on the direction of rotation of developer roll of side seal from first part towards axially external extension, and contacted with side seal, first part and second part have the first adhesive surface for being pasted with lower seal.
Description
Technical field
The developing apparatus that the utility model is related to be used in image forming apparatus.
Background technology
Conventionally, there is known the toner near the both ends from developer roll leaks and makes side seal and show in order to prevent
The developing apparatus of the both ends contact configuration of shadow roller.Toner is easy the gap between side seal and the frame of developing apparatus
Leakage, therefore lower side seals part is made to contact configuration with the side of the inside of the side seal in the axial direction of developer roll to prevent from mixing colours
Agent leaks.
Utility model content
However, in such developing apparatus, due to configuring lower side seals part on the inside of the left and right of side seal, deposit
Increase this problem in components number.
In order to solve the problem, the developing apparatus of the utility model has：Developer roll；Frame supports developer roll；Side is close
Sealing configures the end in the axial direction of developer roll and between frame, and is contacted with developer roll；And lower seal, with developer roll
Contact is formed as the sheet extended in the axial direction, and the axial end of lower seal is configured in a manner of be overlapped with side seal,
The axial end of lower seal is presented axially in be located in the outer part than side seal.Frame has：It is close to be located at side for first part
The axially inner side of sealing, and contacted with side seal；And second part is located at side from first part towards axially external extension
The upstream side on the direction of rotation of developer roll of sealing element, and contacted with side seal, first part and second part have
It is pasted with the first adhesive surface of lower seal.
Description of the drawings
Fig. 1 is the sectional view of the Delevoping cartridge for the embodiment for being schematically indicated the utility model.
Fig. 2 is the exploded perspective view of Delevoping cartridge.
Fig. 3 A are the stereograms indicated before side seal configuration configured near the position of side seal, and Fig. 3 B are configuration sides
Expression side seal near the position of sealing element matches the stereogram postponed.
Fig. 4 is the sectional view for the position relationship for indicating first part and Part III.
Fig. 5 is the sectional view on side seal periphery.
Fig. 6 A are the figures for the relationship for indicating side seal and scraper seal, and Fig. 6 B are the Z-Z sectional views of Fig. 6 A.
Fig. 7 is the figure for the boundary for indicating side seal and contact therewith.
Fig. 8 A~Fig. 8 F are the figures for indicating frame and side seal in variation.
Fig. 9 is the figure for the relationship for indicating side seal and scraper seal in variation.
Specific implementation mode
The developing apparatus of embodiment about the utility model suitably refers to attached drawing to be described in detail.
As shown in Figure 1, the Delevoping cartridge 1 of an example as developing apparatus uses in the image forming apparatuses such as printer.It is aobvious
Shadow box 1 has the frame 2 in internal receiving toner, developer roll 3, supply roller 4, blender 5, lower seal 6 and thickness limitation
Scraper 10.It should be noted that developer roll 3 and blender 5 are rotated to the direction of arrow shown in FIG. 1 respectively.
Frame 2 is formed with toner reception room 7 and the confession for supplying toner from toner reception room 7 to developer roll 3
To mouth 8.Blender 5 is configured in the inside of toner reception room 7.Supply mouth 8 is formed as the axial direction along developer roll 3 (following
Explanation in referred to as " axial direction ") rectangle elongated hole-shape.
Developer roll 3, which has, to be kept part, that is, roller main body 3A of the roller of toner in circumferential surface and is configured at the center of roller main body 3A
Axis and the roll shaft 3B rotated together with roller main body 3A.The roll shaft 3B of developer roll 3 is supported on frame through not shown bearing components
Frame 2.
Supply roller 4 is supported on frame 2 in a manner of carrying out sliding contact with developer roll 3.
Lower seal 6 is made of plastics etc., is formed as the sheet extended in the axial direction.Lower seal 6 configuration frame 2 with
Between developer roll 3, and contacted with developer roll 3.
Thickness limitation scraper 10 is supported on frame 2, and is configured in a manner of being contacted with developer roll 3.Thickness limits scraper 10
With scraper plate portion 11 and scraper rubber section 12.Scraper plate portion 11 is supported with the end of 3 opposite side of developer roll by scraper
Plate 13 and be supported on frame 2.Scraper rubber section 12 be arranged in 3 side of developer roll and the left and right directions that extends in left and right directions it is big
The small rubber component smaller than scraper plate portion 11.Scraper rubber section 12 it is prominent with the opposite face of developer roll 3 from scraper plate portion 11 and
It is contacted with the circumferential surface of developer roll 3.
In the Delevoping cartridge 1, the toner being housed in toner reception room 7 is stirred by blender 5 and from 8 row of supply mouth
After going out, supplied from supply roller 4 to developer roll 3.The toner on developer roll 3 is supplied to the rotation of developer roll 3 and into
Enter between thickness limitation scraper 10 and developer roll 3.Also, the toner on developer roll 3 is constrained to one by thickness limitation scraper 10
Determine the thin layer of thickness.
As shown in Fig. 2, being configured with scraper seal 50 between frame 2 and thickness limitation scraper 10.Moreover, in roller main body
Side seal 30 is configured between end in the axial direction of 3A and frame 2.
The material that scraper seal 50 can be compressed by such as sponge etc. is formed.Scraper seal 50 have in the axial direction compared with
The part of the long scraper seal main part 51 extended and the direction of rotation upstream side from scraper seal main part 51 is in axial direction
The scraper seal extension portion 52 extended towards outside of both ends.In the direction of rotation downstream side of scraper seal main part 51
Edge be formed with multiple recess portions 53 towards upstream side depression.The length ratio in a rotational direction of scraper seal extension portion 52
Length is short in a rotational direction for scraper seal main part 51.Scraper seal 50 has for viscous with thickness limitation scraper 10
Second adhesive surface 55 (part shown in dot-hatched) of knot.
Frame 2 has the first adhesive surface 25 of the lower section for lower seal 6 to be pasted on to developer roll 3.First adhesive surface
25 extend to the end of another party from the end of a side of frame 2.Lower seal 6 is pasted on frame 2 at the first adhesive surface 25
(with reference to Fig. 5).The axial end 6A of lower seal 6 is configured in a manner of Chong Die with side seal 30, is presented axially in ratio
Side seal 30 is located in the outer part.
The material that side seal 30 can be compressed by such as polyurethane sponge etc. is formed.Side seal 30 by developer roll 3 with
Frame 2 is clamped, and is contacted with the peripheral surface of developer roll 3.End in the axial direction of roller main body 3A is located at the axis than side seal 30
To lateral surface 33 at the axially inner side.
As shown in Fig. 3 A, Fig. 3 B, frame 2 has first for configuring side seal 30 at axially external both ends
Divide 21, second part 22, Part III 23 and Part IV 24.
First part 21 is located at the axially inner side of side seal 30, and is contacted with side seal 30.It should be noted that the
A part 21 includes the first face 21A being bent along the peripheral surface of developer roll 3 and from the first face 21A to the side for leaving developer roll 3
To the second face 21B of extension.
Second part 22 is from first part 21 towards axially external extension.Second part 22 is located at showing for side seal 30
Upstream side on the direction of rotation (in the following description, also referred to as " direction of rotation ") of shadow roller 3, and connect with side seal 30
It touches.First part 21 and second part 22 have for pasting first adhesive surface 25 of lower seal 6 (in figure 3b by point
The part of shape shadow representation).The length ratio configuration in a rotational direction of the part for being configured at the second face 21B of first adhesive surface 25
In the part of second part 22, length is long in a rotational direction.
As shown in Figure 3B, the axial end of the first adhesive surface 25 is located at the end in the axial direction than roller main body 3A by axial
Outside.Moreover, the first adhesive surface 25 is located at the axial lateral surface 33 than side seal 30 by axially external place.
Lower seal 6 is pasted on first part 21 and second by the double faced adhesive tape that profile is consistent with the first adhesive surface 25
Part 22, and be overlapped and contact with side seal 30.Also, lower seal 6 is not pasted on Part III 23.Moreover, lower sealing
Part 6 is not pasted on side seal 30.
Direction of rotation downstream side of the Part III 23 from the axially external end of second part 22 towards developer roll 3 extends.
Part III 23 is located at the axially external of side seal 30, and is contacted with side seal 30.
Part IV 24 be located at than second part 22 by developer roll 3 direction of rotation downstream side at and with side seal 30
The end in direction of rotation downstream side contacts.
As shown in Figure 3A, side seal 30 has the base 31 that can be compressed and carries out the table of sliding contact with developer roll 3
Layer 32.Base 31, which has, to be located at than first part 21 by the base main part 31A at axially external place and from main part 31A courts of base
The inside extension portion 31B extended to axially inner side.Surface layer 32 configures in base 31, has and is located on base main part 31A
The surface main body portion 32A and inside extension portion 32B on the extension portion 31B of inside.It should be noted that in the following description
In, base main part 31A and surface main body portion 32A are collectively referred to as side seal main part 30A, by inside extension portion 31B and interior
Side extension portion 32B is collectively referred to as inside extension portion 30B.That is, side seal 30 has to be located at leans on axially external place than first part 21
Side seal main part 30A and the inside extension portion 30B that extends from side seal main part 30A towards axially inner side.Inside
The direction of rotation upstream side end 30C of extension portion 30B is adjacent with the direction of rotation downstream side of first part 21, and preferably with first
Part contacts.
Length, that is, the base 31 of base 31 in the axial direction before side seal 30 is assembled to frame 2 is configured at first
Divide the length of the part between 21 and Part III 23 than the interval axially between first part 21 and Part III 23
It is long.Therefore, when side seal 30 is configured at frame 2, base 31 becomes the state being compressed by the axial direction.
As shown in figure 4, the distance L1 from rotation center to the Part III 23 of developer roll 3 is from the rotation of developer roll 3
The heart to first part 21 distance L2 or more.That is, the height on the thickness direction of side seal 30 of Part III 23 is ratio
First part 21 is low or identical with first part 21 height.
As shown in figure 5, before assembling side seal 30 to frame 2, the base 31 of side seal 30 is in direction of rotation
On length L3 (with reference to Fig. 3) than the length L4 long along direction of rotation from second part 22 to Part IV 24.Therefore, exist
When side seal 30 is assembled in frame 2, base 31 becomes the state being compressed by a rotational direction.
As shown in Figure 6A, scraper seal 50 configures the axial direction in side seal 30 in a manner of being contacted with side seal 30
Inside.Specifically, the end face 52A of the end of the left and right directions of scraper seal 50, that is, scraper seal extension portion 52 and side are close
The face 35 of the left and right inside of sealing 30 contacts.As shown in Figure 6B, scraper seal 50 is consistent by profile and the second adhesive surface 55
Double faced adhesive tape 58 and be pasted on scraper plate portion 11.
As shown in Figure 6A, the second adhesive surface 55 leaves positioned at the end of the axial direction from scraper seal 50 to axially inner side
Position, have from side seal 30 leave predetermined distance and from the direction of rotation upstream end of scraper seal 50 to direction of rotation under
Swim the first ora terminalis 55A of side extension, from the direction of rotation downstream of the first ora terminalis 55A to the second ora terminalis of axially external extension
The 55B and third ora terminalis 55C extended from the axially external end of the second ora terminalis 55B to direction of rotation downstream side.It needs
Illustrate, the first ora terminalis of ratio 55A, the second ora terminalis 55B and the third ora terminalis 55C of scraper seal 50 lean on axially external part
It is not pasted on scraper plate portion 11.
According to the Delevoping cartridge 1 of the present embodiment constituted as described above, following such effect can be obtained.
As shown in fig. 7, since side seal 30 is contacted with the first part 21 of frame 2 in axially inner side, and in rotation side
It is contacted to the upstream side with second part 22, therefore even if in the side of the axially inner side of side seal 30 and direction of rotation upstream side
Side be not provided with other containment members, can also toner be inhibited to leak.Also, due to side seal 30 and frame 2
Have a common boundary in a rotational direction extend and bend and extend in the axial direction, thus enter the boundary toner can not easily to
External leakage.
In addition, since side seal 30 is contacted with Part III 23 axially external, thus side seal 30 and frame 2
Having a common boundary becomes the axially external end from second part 22 Yu the boundary of side seal 30 further to the shape of direction of rotation bending
Shape, therefore toner is difficult to leak between side seal 30 and frame 2.
Further, since side seal 30 is with by first part 21, second part 22, Part III 23 and Part IV 24
It surrounds and the mode for being resisted against these parts in the state of compressing is arranged, therefore side seal 30 can be stably kept.
In addition, since side seal 30 has the inside extension portion adjacent with the direction of rotation downstream side of first part 21
30B, therefore the junction section of side seal 30 and first part 21 becomes and extends in a rotational direction and from direction of rotation downstream
Shape of the end of side to extension on the inside of direction of rotation.Therefore, even if entering side seal 30 and first part 21 in toner
Between in the case of, nor invade in a rotational direction but from axially inner side invade, can further suppress toner into
Enter between side seal 30 and first part 21.
In addition, due to before assembling side seal 30 to frame 2, the base 31 of side seal 30 is configured at first
The length of part in the axial direction between part 21 and Part III 23 is longer than from first part 21 to the length of Part III 23,
Therefore base 31 is compressively configured.Therefore, side seal 30 is resisted against first part 21 and third by elastic restoring force
Part 23, therefore can inhibit between first part 21 and the axially inner side end of side seal 30 and Part III 23 and side
Gap is vacated between the axially external end of sealing element 30, toner can be inhibited to leak.
In addition, due to before assembling side seal 30 to frame 2, the base 31 of side seal 30 is in a rotational direction
Length L3 than the length L4 long from second part 22 to Part IV 24, therefore the base 31 that can be compressed compressively is received
Hold.Therefore, side seal 30 is resisted against second part 22 and Part IV 24 by elastic restoring force, therefore can inhibit
Between the direction of rotation end of downstream side and Part IV 24 of the side seal 30 and direction of rotation upstream side of side seal 30
Gap is vacated between portion 30C and second part 22, toner can be inhibited to leak.
In addition, the end due to being located at roller main body 3A for lower seal 6 to be pasted on to the first adhesive surface 25 of frame 2
Axial outside axially external and positioned at side seal 30, therefore the lower seal 6 for being pasted on the first adhesive surface can be inhibited
End float.Since the end of lower seal 6 will not float, thus can inhibit lower seal 6 and side seal 30 it
Between there is gap.
In addition, since the height of Part III 23 is not higher than first part 21 (unlike first part 21 closer in rotating
The heart), so the axial end of lower seal 6 can be inhibited to float, therefore it is difficult between lower seal 6 and side seal 30
There is gap.
In addition, since lower seal 6 is not pasted on side seal 30, side seal 30 being capable of Free Transform.Work as side
Sealing element 30 can Free Transform when, can inhibit gap occur between side seal 30 and frame 2.
In addition, due to not pasting lower seal 6 in Part III 23, the axial end of lower seal 6 will not be by
To unnecessary constraint, the deformation of lower seal 6 can be inhibited.Therefore, it is possible to make being close to for lower seal 6 and side seal 30
Property and lower seal 6 and developer roll 3 close property it is good and toner is inhibited to leak.
In addition, limiting scraper 10 since scraper seal 50 is pasted on thickness at the second adhesive surface 55, it is viscous to become second
The shape of the ora terminalis bending of veneer 55, and the second ora terminalis 55B extended in the axial direction is played a role in a manner of stopping toner,
Therefore toner can be inhibited from gap S (with reference to Fig. 6 B) leakage occurred in the edge of the second adhesive surface 55.Since scraper is close
The part of the exterior portion positioned at the second adhesive surface 55 of sealing 50 is not limited the constraint of scraper 110 by thickness and can freely be received
Contracting, therefore in assembling, the part can be made to be shunk on length direction (axial direction) and contact configuration with side seal 30.
In addition, since the width (length in a rotational direction) of scraper seal extension portion 52 is than scraper seal main body
Portion 51 is narrow, therefore is easy to compress in the axial direction.Due to being easy to compress in the axial direction, in assembling, will can easily scrape
Knife sealing element extension portion 52 is compressed on length direction (axial direction) and is configured.
It should be noted that the utility model is not limited to the embodiment, it can be as illustrated below with various
Mode utilizes.In the following description, for the component of construction substantially same with the embodiment, mark same label and
The description thereof will be omitted.
In said embodiment, frame 2 has been set as the knot with first part 21, second part 22 and Part III 23
Structure, but the utility model is not limited to this.For example, it is also possible to be set as omitting the structure of Part III 23.With this configuration, side is close
Sealing 30 is also contacted in axially inner side with the first part 21 of frame 2, and trip side is contacted with second part 22 in a rotational direction,
Therefore the backward axially external bending of side seal 30 and the boundary left-hand tools direction upstream side extension of frame 2, becomes bending
Path.Therefore, toner is difficult to leak, even if in the side of the axially inner side of side seal 30 and direction of rotation upstream side
Side is not provided with other containment members, can also toner be inhibited to leak.
In said embodiment, the face that side seal 30 is contacted with frame 2 is flat, but the utility model does not limit
In this.For example, side seal 30 can also be set as having towards at least one party in first part and second part outstanding the
The structure of one protrusion, side seal can also be set as with the structure towards Part III third protrusion outstanding.
Specifically, as shown in Figure 8 A, the side seal 60A in variation has towards first part 21 outstanding first
Protrusion 61.First protrusion 61 is contacted with first part 21.First protrusion 61 can also configure multiple.According to the structure, side seal
The first protrusion 61 that part 60A has is close to frame 2 and toner can be inhibited to leak.
In addition, as shown in Figure 8 B, the side seal 60B in variation is in addition to having towards first part 21 outstanding first
Except protrusion 61, also have towards 22 first protrusion 62 outstanding of second part.Moreover, side seal 60B has towards third
23 third protrusion 63 outstanding of part.First protrusion 61,62 and third protrusion 63 are contacted with frame 2 respectively.Moreover, these protrusions
It can also be respectively configured multiple.According to the structure, the first protrusion 61,62 and third protrusion 63 and frame that side seal 60A has
Frame 2 is close to and toner can be inhibited to leak.
In addition, as shown in Figure 8 C, side seal 60C in variation in addition to have protrusion that side seal 60B has it
Outside, also have towards first part 21 and 22 the 5th protrusion 64 outstanding of second part and towards second part 22 and Part III
23 the 6th protrusions 65 outstanding.First protrusion 61,62, third protrusion 63, the 5th protrusion 64 and the 6th protrusion 65 connect with frame 2
It touches.Also, these protrusions can also be respectively configured multiple.According to the structure, the first protrusion 61,62, third protrusion the 63, the 5th it is prominent
Rise 64 and the 6th protrusion 65 be close to frame 2 and toner can be inhibited to leak.
In said embodiment, the contact surface of the frame 2 contacted with side seal 30 is flat, but the utility model
It is not limited to this.It is protruded for example, at least one party in first part and second part can also be set as having towards side seal
The second protrusion structure, Part III can also be set as with towards side seal the 4th protrusion outstanding structure.
Specifically, as in fig. 8d, the first part 21 of the frame 2 in variation, which has towards side seal 30, to be protruded
The second protrusion 71.Second protrusion 71 is contacted with side seal 30.Second protrusion 71 can also configure multiple.According to the structure,
The second protrusion 71 that first part 21 has is close to side seal 30, can efficiently inhibit toner by protrusion
Leakage.
In addition, as illustrated in fig. 8e, the first part 21 of the frame 2 in variation has towards side seal 30 outstanding the
Two protrusions 71, second part 22 have towards 30 second protrusion 72 outstanding of side seal.Also, Part III 23 has direction
30 the 4th protrusion 73 outstanding of side seal.Second protrusion 71,72 and the 4th protrusion 73 are contacted with side seal 30 respectively.And
And these protrusions can also be respectively configured it is multiple.According to the structure, the second protrusion 71,72 and the 4th protrusion 73 and side seal
30 are close to, and efficiently toner can be inhibited to leak by protrusion.
In addition, as shown in Figure 8 F, the first part 21 of the frame 2 in variation and second part 22 are in addition to Fig. 8 E's
Except the protrusion of example, also have the corner that intersects from first part 21 and second part 22 towards side seal 30 outstanding the
Seven protrusions 74.Also, second part 22 and Part III 23 are also equipped with other than the protrusion of the example with Fig. 8 E from second
The corner that part 22 intersects with Part III 23 is towards 30 the 8th protrusion 75 outstanding of side seal.7th protrusion 74 and the 8th is prominent
75 are played to contact with side seal 30 respectively.These protrusions can also be respectively configured multiple.According to the structure, the second protrusion 71,72,
4th protrusion 73, the 7th protrusion 74 and the 8th protrusion 75 are close to side seal 30, can efficiently be pressed down by protrusion
Toner leakage processed.
In said embodiment, being set as scraper seal extension portion 52, length compares scraper seal in a rotational direction
The short structure of length in a rotational direction of main part 51, but the utility model is not limited to this.For example, it is also possible to such as Fig. 9 institutes
The scraper seal 80 for the variation shown is set as not configuring the structure of extension portion like that.It with this configuration, also can be with the reality
Applying mode similarly inhibits toner to be leaked along the edge of the second adhesive surface.
In said embodiment, the structure that scraper seal is pasted on thickness limitation scraper, but the utility model are set as
It is not limited to this, the structure that scraper seal is pasted on frame can also be set as.
In said embodiment, it is set as the side in the side of the axially inner side of side seal 30 and direction of rotation upstream side
The structure of other containment members is not arranged for face, but the utility model is not limited to this, can also be in the axial direction of side seal 30
The other containment members of side setting of the side or direction of rotation upstream side of inside.
In said embodiment, use be provided integrally with toner reception room 7 Delevoping cartridge 1 be used as developing apparatus,
But the utility model is not limited to this, can also use the removable box conduct of toner Cartridge for example with toner reception room
Developing apparatus.
In said embodiment, the side seal 30 of double-layer structural is used, but the utility model is not limited to this,
The side seal of the construction of such as monolayer constructions or three layers or more may be used.
It should be noted that each element illustrated in the embodiment and variation arbitrarily can also be combined to come in fact
It applies.
Claims (15)
1. a kind of developing apparatus, which is characterized in that have：
Developer roll；
Frame supports the developer roll；
Side seal configures the end in the axial direction of the developer roll and between the frame, and is contacted with the developer roll；
And
Lower seal is contacted with the developer roll, is formed as the sheet upwardly extended in the axis, the axis of the lower seal
To end configured in a manner of Chong Die with the side seal, and the axial end of the lower seal is in the axial direction
Above it is located at and locates in the outer part than the side seal,
The frame has：
First part, is located at the axially inner side of the side seal, and is contacted with the side seal；And
Second part, from the first part towards the axially external extension, positioned at the side seal in the development
Upstream side on the direction of rotation of roller, and contacted with the side seal,
The first part and the second part have the first adhesive surface for being pasted with the lower seal.
2. developing apparatus according to claim 1, which is characterized in that
The axial end of the developer roll is located at the axial lateral surface than the side seal by the axially inner side
Place,
The axial end of first adhesive surface is located at the axial end than the developer roll by the axial direction
Outside.
3. developing apparatus according to claim 1, which is characterized in that
The axial end of first adhesive surface is located at the axial lateral surface than the side seal by described
Axially external place.
4. developing apparatus according to claim 1, which is characterized in that
The lower seal is not pasted on the side seal.
5. developing apparatus according to claim 1, which is characterized in that
The side seal has：
Side seal main part is located at and leans on the axially external place than the first part；And
Inside extension portion extends from the side seal main part towards the axially inner side,
The direction of rotation upstream side end of the inside extension portion and the direction of rotation downstream side of the first part
It is adjacent.
6. developing apparatus according to claim 1, which is characterized in that
The side seal has towards at least one party's the first protrusion outstanding in the first part and the second part.
7. developing apparatus according to claim 1, which is characterized in that
At least one party in the first part and the second part has towards the side seal the second protrusion outstanding.
8. developing apparatus according to claim 1, which is characterized in that
The frame has Part III, and the Part III is from the axially external end of the second part towards the rotation
Turn the extension of direction downstream side, is located at the described axially external of the side seal, and contact with the side seal.
9. developing apparatus according to claim 8, which is characterized in that
The lower seal is pasted on the first part and the second part, and is not pasted on the Part III.
10. developing apparatus according to claim 8, which is characterized in that
Distance from rotation center to the Part III of the developer roll is from the rotation center to the first part
Distance more than.
11. developing apparatus according to claim 8, which is characterized in that
The side seal has towards Part III third protrusion outstanding.
12. developing apparatus according to claim 8, which is characterized in that
The Part III has towards the side seal the 4th protrusion outstanding.
13. developing apparatus according to claim 1, which is characterized in that
The side seal has the base that can be compressed and carries out the surface layer of sliding contact with the developer roll,
There is the frame Part IV, the Part IV to be located at than the second part at the direction of rotation downstream side,
And contacted with the end in the direction of rotation downstream side of the base,
The length of the base on the direction of rotation than from the second part to the Part IV along the rotation
The length for turning direction is long.
14. developing apparatus according to claim 1, which is characterized in that
It is also equipped with：
Thickness limits scraper, is contacted with the circumferential surface of the developer roll；And
Scraper seal, setting can be compressed between the frame and thickness limitation scraper,
The scraper seal configures the axially inner side in the side seal in a manner of being contacted with side seal, and has
There is the second adhesive surface for being bonded in the frame or thickness limitation scraper,
Second adhesive surface is located at the position left from the axial end of the scraper seal to the axially inner side
It sets,
Second adhesive surface has：
First ora terminalis leaves predetermined distance from the side seal, and from the direction of rotation upstream of the scraper seal
It holds to the direction of rotation downstream side and extends；
Second ora terminalis, from the direction of rotation downstream of first ora terminalis to the axially external extension；And
Third ora terminalis extends from the axially external end of second ora terminalis to the direction of rotation downstream side.
15. developing apparatus according to claim 14, which is characterized in that
The scraper seal has：
Scraper seal main part；And
Scraper seal extension portion, it is described from being partially toward for the direction of rotation upstream side of the scraper seal main part
It is axially external to extend,
The length of the scraper seal extension portion on the direction of rotation is than the scraper seal main part in the rotation
The length turned on direction is short.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016232653A JP6862798B2 (en) | 2016-11-30 | 2016-11-30 | Developer |
| JP2016-232653 | 2016-11-30 |
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| Publication Number | Publication Date |
|---|---|
| CN207676121U true CN207676121U (en) | 2018-07-31 |
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| CN201721610783.0U Active CN207676121U (en) | 2016-11-30 | 2017-11-27 | Developing apparatus |
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| JP (1) | JP6862798B2 (en) |
| CN (1) | CN207676121U (en) |
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| JP2022168977A (en) | 2021-04-27 | 2022-11-09 | 京セラドキュメントソリューションズ株式会社 | Developing device and image forming apparatus including the same |
| JP2022168976A (en) | 2021-04-27 | 2022-11-09 | 京セラドキュメントソリューションズ株式会社 | Developing device and image forming apparatus including the same |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3093918B2 (en) * | 1993-11-25 | 2000-10-03 | キヤノン株式会社 | Developing device |
| JP3630957B2 (en) * | 1997-12-02 | 2005-03-23 | キヤノン株式会社 | Development device |
| JPH11272071A (en) * | 1998-03-19 | 1999-10-08 | Canon Inc | Developing device, processing cartridge and electrophotographic image forming device |
| JP2000105501A (en) * | 1998-09-30 | 2000-04-11 | Canon Inc | Developing device, process cartridge, and electrophotographic image forming device |
| JP3450241B2 (en) * | 1999-11-26 | 2003-09-22 | シャープ株式会社 | Development device |
| JP3682495B2 (en) * | 2000-03-28 | 2005-08-10 | ブラザー工業株式会社 | Development device |
| US6487383B2 (en) * | 2001-04-12 | 2002-11-26 | Lexmark International, Inc. | Dynamic end-seal for toner development unit |
| JP2010164736A (en) * | 2009-01-15 | 2010-07-29 | Brother Ind Ltd | Developing device |
| JP2011191331A (en) * | 2010-03-11 | 2011-09-29 | Murata Machinery Ltd | Developing device and image forming apparatus |
| JP2013015706A (en) * | 2011-07-05 | 2013-01-24 | Fuji Xerox Co Ltd | Developer handling device and image forming apparatus |
| JP5333540B2 (en) * | 2011-07-29 | 2013-11-06 | ブラザー工業株式会社 | Development device |
| JP2016167046A (en) * | 2015-03-05 | 2016-09-15 | 株式会社リコー | Developing device, process cartridge, and image forming apparatus |
-
2016
- 2016-11-30 JP JP2016232653A patent/JP6862798B2/en active Active
-
2017
- 2017-11-27 CN CN201721610783.0U patent/CN207676121U/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| JP2018091892A (en) | 2018-06-14 |
| JP6862798B2 (en) | 2021-04-21 |
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