CN208506497U - Delevoping cartridge - Google Patents

Abstract

The utility model provides a kind of Delevoping cartridge, comprising: developer roll has the axis for carrying the body part of toner and rotating together with body part；Shell can accommodate toner；Side seal contacts between the end in the axial direction and shell of body part with the end in the axial direction of body part；And lower sealing.Lower sealing includes: the first sheet material, is contacted with body part；Adhesive layer, for the first sheet material to be adhered to shell；And second sheet material, it is adhered to the end in the axial direction of adhesive layer, is contacted with side seal and shell.

Description

Delevoping cartridge

Technical field

The utility model relates to one kind Delevoping cartridges used in image forming apparatus.

Background technique

In the past, it is known that a kind of Delevoping cartridge, toner leaks near the both ends of developer roll in order to prevent, and side seal is matched It sets the both ends in developer roll and contacts.In this Delevoping cartridge, will in the long dimension direction of developer roll extend and Lower sealing with all face contacts of developer roll is adhered to shell.

Utility model content

However, when for example recycling Delevoping cartridge, being replaced when to side seal if lower sealing is adhered to side seal When, since it is desired that removing the lower sealing for being adhered to side seal, thus it is difficult to replace side seal.Further, it is difficult to close under Envelope is directly recycled, and there are problems that lower sealing new product must be changed to.

To solve the above-mentioned problems, the utility model provides a kind of Delevoping cartridge, comprising: developer roll has and adjusts for carrying The body part of toner and the axis rotated together with the body part；Shell can accommodate toner；Side seal is located at described Between the end in the axial direction and the shell in body portion, contacted with the end in the axial direction of the body part； And lower sealing.The lower sealing includes: the first sheet material, is contacted with the body part；Adhesive layer is used for first sheet material It is adhered to the shell；And second sheet material, it is adhered to the end in the axial direction of the adhesive layer, with the side seal It is contacted with the shell.

The Delevoping cartridge of the utility model, second sheet material are not bonded to the side seal and the shell.

The Delevoping cartridge of the utility model, the thickness of second sheet material are less than the thickness of the adhesive layer.

The Delevoping cartridge of the utility model, the thickness of second sheet material are less than the thickness of first sheet material.

The Delevoping cartridge of the utility model, second sheet material with a thickness of 0.05mm or less.

The Delevoping cartridge of the utility model, second sheet material are made of polyester.

The Delevoping cartridge of the utility model, in the axial direction, the part of second sheet material being in contact with the shell Size be greater than second sheet material the part being in contact with the side seal size.

The Delevoping cartridge of the utility model, in the axial direction, the portion of second sheet material being in contact with the side seal The size divided is 1~3mm.

The Delevoping cartridge of the utility model, in the axial direction, the part of second sheet material being in contact with the shell Size be 5~8mm.

The Delevoping cartridge of the utility model, the adhesive layer with a thickness of 0.3~0.6mm.

The Delevoping cartridge of the utility model, further includes the filler of non-curable, the filler be filled in by the shell, In the part that the side seal and second sheet material cross.

The Delevoping cartridge of the utility model, the side seal include: base；And surface layer, it is located at the base and described Between body portion, contacted with the body part.The shell includes: the first face, with it is described under it is in sealing contact；And second face, from The end in the axial direction in first face extends along from the lower direction left that seals, with the base in institute The end contact in axial direction is stated, is left in the axial direction with the surface layer, the filler is located at the surface layer and described the Between two faces.

The Delevoping cartridge of the utility model, the filler are fluorine-based lubricating grease.

The Delevoping cartridge of the utility model, the filler are Synthetic Oils.

The Delevoping cartridge of the utility model, second sheet material have first part and second part, the second part from The end in the downstream side on the direction of rotation of the developer roll of the first part is upwardly extended in the axis, in the rotation Turn on direction, the size of the second part is less than the size of the first part.

Detailed description of the invention

Fig. 1 is cross-sectional view, schematically illustrates the Delevoping cartridge of embodiment according to the present utility model.

Fig. 2 is the exploded perspective view of Delevoping cartridge.

Fig. 3 A is perspective view, shows the structure near the side seal bonding location before being bonded side seal.

Fig. 3 B is perspective view, shows the structure near the side seal bonding location after being bonded side seal.

Fig. 4 is exploded perspective view, shows the structure of lower sealing.

Fig. 5 shows the lower sealing region Chong Die with side seal and shell.

Fig. 6 A is the Z-Z cross-sectional view in Fig. 5.

Fig. 6 B shows the state when replacement side seal seals at present.

Fig. 7 is the cross-sectional view of variation, shows the structure near side seal bonding location.

Specific embodiment

Suitably refer to attached drawing below the Delevoping cartridge of embodiment according to the present utility model is described in detail.

As shown in Figure 1, Delevoping cartridge 1 uses in the image forming apparatus such as printer.Delevoping cartridge 1 includes: can be in inside Accommodate the shell 2 of toner；Developer roll 3；Supply roller 4；Blender 5；Lower sealing 6；And thickness margining tablet 10.3 He of developer roll Blender 5 is rotated respectively along arrow direction shown in FIG. 1.

Shell 2 is formed with toner accommodating chamber 7 and for toner to be supplied to developer roll 3 from toner accommodating chamber 7 Supply mouth 8.Blender 5 is located at the inside of toner accommodating chamber 7.Supply mouth 8 is formed (following along the axial direction of developer roll 3 Referred to as " axial direction ") rectangle long hole shape.

Developer roll 3 includes body part 3A, it is roller for carrying the part of toner on circumferential surface；And axis 3B, it It is rotated together with body part 3A.Axis 3B is supported on shell 2 bearing components not shown in a manner of it can rotate.

Supply roller 4 is supported on shell 2 in a manner of it can rotate, to contact with developer roll 3.

Lower sealing 6 is formed as the sheet extended in the axial direction.Lower sealing 6 is between shell 2 and developer roll 3, with development Roller 3 contacts.

Thickness margining tablet 10 is supported by shell 2, is contacted with developer roll 3.Thickness margining tablet 10 has sheet portion 11 and piece rubber Glue portion 12.Sheet portion 11 is supported on shell 2 by piece support plate 13 with the end of 3 opposite side of developer roll.Piece rubber section 12 is from piece Plate portion 11 is prominent towards developer roll 3, all face contacts with developer roll 3.

In above-mentioned Delevoping cartridge 1, the toner being contained in toner accommodating chamber 7 is stirred by blender 5, from supply mouth 8 Discharge, is then supplied to developer roll 3 by supply roller 4.Along with the rotation of developer roll 3, be supplied to toner on developer roll 3 into Enter between thickness margining tablet 10 and developer roll 3.The toner on developer roll 3 is limited to centainly by thickness margining tablet 10 as a result, The thin layer of thickness.

As shown in Fig. 2, side seal 30 is located between in the axial direction a end and shell 2 of body part 3A.In addition, side Sealing 30 is between the other end in the axial direction and shell 2 of body part 3A.That is, in the axial direction across being equipped at intervals with two Side seal 30.

As shown in figs.3 a and 3b, side seal 30 is contacted with the end in the axial direction of body part 3A.Body part 3A in axis A upward end 3C is located at one end 33 in the axial direction of side seal 30 and the other end 34 in the axial direction of side seal 30 Between.

In addition, in the axial direction, from one end of side seal 30 33 to the distance ratio of the body part 4A of supply roller 4 from side seal 30 The other end 34 to supply roller 4 body part 4A distance it is big.

Side seal 30 has base 31 and surface layer 32.Base 31 supports surface layer 32, is bonded in shell 2.Base 31 is by that can press Compression material is formed.Base 31 is, for example, polyurethane sponge etc..Base 31 is thicker than surface layer 32.Surface layer 32 is located at base 31 and developer roll Between 3 body part 3A, contacted with body part 3A.Size in the axial direction of the size in the axial direction on surface layer 32 than base 31 It is small.Surface layer 32 is, for example, nonwoven fabric etc..

Shell 2 includes the first face 21, in sealing contact under；Second face 22, from the end in the axial direction in the first face 21 Portion extends along from the direction that lower sealing 6 is left；And third face 23, side seal 30 are bonded in third face 23 (referring also to figure 6A)。

First face 21 is the face for being bonded lower sealing 6.First face 21 is extended to from shell 2 end in the axial direction The other end (referring to fig. 2).

Second face 22 is contacted with the other end 34 of the base 31 of side seal 30.Second face 22 does not connect in the axial direction with surface layer 32 Touching.That is, the second face 22 is positioned away from the position on surface layer 32.

Third face 23 is in the axial direction from the end of the second face 22 and the first face 21 opposite side along the ontology from supply roller 4 The direction that portion 4A leaves extends.Third face 23 is contacted with the bottom surface 35 of side seal.Specifically, the bottom in third face 23 and base 31 Face 35 contacts.In other words, the bottom surface 35 of base 31 is adhered to third face 23.In addition, the bottom surface 35 of base 31 is and base 31 36 opposite side of face contacted with surface layer 32 face.Third face 23 is located in the axial direction a end for shell 2.In addition, the Three faces 23 are located at the other end in the axial direction of shell 2.That is, two third faces 23 are arranged across interval in the axial direction.

Fig. 2 is returned to, lower sealing 6 has the rectangular portion 6A of the rectangle of long side in the axial direction and from the both ends of rectangular portion 6A in axis The extension 6B upwardly extended.On the direction of rotation of developer roll 3 (in the following description, referred to as " direction of rotation "), prolong The size of extending portion 6B is less than the size of rectangular portion 6A.Extension 6B extends from the downstream side of the direction of rotation of rectangular portion 6A.Under it is close Envelope 6 is formed with notch 6C in the upstream side of the direction of rotation of extension 6B.As shown in Figure 3B, lower sealing 6 in the axial direction End is contacted with side seal 30.

As shown in figure 4, lower sealing 6 has the first sheet material 61, the second sheet material 62 and adhesive layer 63.First sheet material 61 is that have With the sheet material of 6 corresponding shapes of above-mentioned lower sealing.First sheet material 61 is contacted with the body part 3A of developer roll 3 (referring to Fig. 6 A). Specifically, there is the first sheet material 61 front 61A and back side 61B, positive 61A to contact with body part 3A.The back of first sheet material 61 Face 61B is adhered to adhesive layer 63.First sheet material 61 has notch 61C, the shape and the shape phase of notch 6C of notch 61C It is corresponding.The thickness of first sheet material 61 is preferably 0.075~0.2mm, is in the present embodiment 0.1mm.First sheet material 61 is for example It is the resin sheet formed by polyester.

Adhesive layer 63 is the sheet material for the first sheet material 61 to be adhered to shell 2.Adhesive layer 63 has front 63A and the back side 63B.Positive 63A and back side 63B can be bonded.The positive 63A of adhesive layer 63 is adhered to the back side of the first sheet material 61 61B.The back side 63B of adhesive layer 63, which has, to be adhered to the central portion 631B in the first face 21 and is adhered to the end of the second sheet material 62 632B.In the axial direction, the size of adhesive layer 63 is identical as the size of the first sheet material 61.In a rotational direction, the ruler of adhesive layer 63 The very little size less than the first sheet material 61.Adhesive layer 63 is located at the position at the edge of the direction of rotation upstream side along the first sheet material 61 It sets.There is adhesive layer 63 notch 63C, notch 63C to have shape corresponding with notch 6C.The thickness of adhesive layer 63 compared with Good is 0.3~0.6mm, is in the present embodiment 0.4mm.Adhesive layer 63 is such as the compressible material shape as polyurethane sponge At.

Second sheet material is located in the axial direction a end for adhesive layer 63.In addition, the second sheet material is located at adhesive layer 63 The other end in the axial direction.That is, the second sheet material 62 is in the axial direction across being equipped at intervals with two.In the axial direction, second The size of sheet material 62 is less than the size of adhesive layer 63.Second sheet material 62 is bonded in the end in the axial direction of adhesive layer 63, with side Sealing 30 and the contact of shell 2 (referring to Fig. 6 A).Second sheet material 62 is not bonded to side seal 30 and shell 2.Specifically, second Material 62 has front 62A and back side 62B.Positive 62A is adhered to end 632B.Back side 62B is contacted with side seal 30 and shell 2 (referring to Fig. 6 A).

Second sheet material 62 is in L-shaped.Specifically, the second sheet material 62 has first part 621 and second part 622.The Two parts 622 from the end in the direction of rotation downstream side of first part 621 axially along from lower sealing 6 in the axial direction The direction that center is left extends (referring to Fig. 5).In a rotational direction, the size of second part 622 is less than the ruler of first part 621 It is very little.There is second sheet material 62 notch 62C, notch 62C to have shape corresponding with notch 6C

Second sheet material 62 is, for example, the sheet material of the resin formed by polyester.The thickness of second sheet material 62 is less than the first sheet material 61 thickness, and it is less than the thickness of adhesive layer 63.The thickness of second sheet material 62 be preferably the 1/4 of the thickness of the first sheet material 61 with Under, and 1/16 or less the thickness of preferably adhesive layer 63.Specifically, the thickness of the second sheet material 62 be preferably 0.05mm with Under, it is in the present embodiment 0.025mm.

As shown in figure 5, in the axial direction, the size L2 for the part of the second sheet material 62 being in contact with shell 2 is greater than second The size L1 for the part of material 62 being in contact with side seal 30.Size L1 is preferably 1~3mm, in the present embodiment for 2.2mm.Size L2 is preferably 5~8mm, is in the present embodiment 5.1mm.

As shown in Figure 6A, Delevoping cartridge 1 further includes filler G, and filler G is filled in by shell 2, side seal 30 and second In the part that material 62 crosses.Specifically, filler G is located in the gap between base 31 and the second sheet material 62.In addition, filling Agent G is between the second face 22 and base 31.In addition, filler G is located at the surface layer 32 in the second face 22 and side seal 30 of shell 2 Between gap in.That is, both filler G is contacted with surface layer 32 and base 31.Filler G is, for example, fluorine-based lubricating grease.It fills out Filling agent G is the material that can be filled with arbitrary shape, is not solidified after filling preferably.

Illustrate in the Delevoping cartridge 1 of the present embodiment of above structure below, when recycling or maintenance to side seal 30 The step of being replaced.

When replacing side seal 30, after removing developer roll 3 from shell 2, as shown in Figure 6B, firstly, close under lifting The end in the axial direction of envelope 6.When doing so, only lift the part of lower sealing 6 being bonded by the second sheet material 62.At this moment, close under The central portion (part that the second sheet material 62 is not bonded) in the axial direction of envelope 6 is in the state for being bonded in shell 2.It is close in the case where lifting After the end in the axial direction of envelope 6, side seal 30 is removed from shell 2, wipes the filler G for being attached to shell 2.Next, New side seal 30 is installed, filler G is filled into the part crossed by shell 2, side seal 30 and the second sheet material 62, it is close under making Envelope 6 contacts overlapping with side seal 30 and shell 2.Finally, developer roll 3 is installed to shell 2.

The Delevoping cartridge 1 of above-mentioned present embodiment can obtain following effect.

Instantly when sealing 6 is bonded in shell 2, the central portion in the axial direction of lower sealing 6 is bonded in shell by adhesive layer 63 Body 2.On the other hand, since lower sealing 6 has the second sheet material 62, the not glued layer in end in the axial direction of lower sealing 6 63 are adhered to side seal 30.As a result, when replacing side seal 30, without removing adhesive layer 63 from side seal 30.As a result, energy It is enough easily to replace side seal 30.At this point, the central portion in the axial direction of lower sealing 6 is bonded in shell 2 by adhesive layer 63.By This, the position relationship after having replaced side seal 30, between lower sealing 6 and shell 2.As a result, being easy to recycle Lower sealing 6.

As shown in Figure 6A, between the second sheet material 62 and adhesive layer 63, due to the second sheet material 62 thickness and have gap S.However, the thickness due to the second sheet material 62 is less than the thickness of adhesive layer 63, it is able to suppress toner and is leaked from gap S. Further, since the thickness of the second sheet material 62 is less than the thickness of adhesive layer 63, therefore, the thickness of the second sheet material 62 being capable of glued layer 63 absorb.

Specifically, due to the second sheet material 62 with a thickness of 0.05mm hereinafter, and adhesive layer 63 by compressible material shape At therefore, the contact pressure between developer roll 3 and lower sealing 6 being capable of general uniform.

Moreover, because adhesive layer 63 with a thickness of 0.3mm or more, it is thus possible to absorb the thickness of the second sheet material 62.Due to Adhesive layer 63 with a thickness of 0.6mm hereinafter, thus be able to suppress it is lower sealing 6 pairs of developer rolls 3 contact pressure it is excessive.

Further, since thickness of the thickness of the second sheet material 62 less than the first sheet material 61, therefore developer roll 3 is able to suppress under Seal the uneven of the contact pressure between 6.

In addition, as shown in figure 5, in the axial direction, the size L2 of the part that is in contact with shell 2 of the second sheet material 62 is than second The size L1 of the part that is in contact with side seal 30 of material 62 is big.Therefore, as shown in Figure 6B, when lifting lower sealing 6 in the axial direction End when, even if 6 curved angles of lower sealing are small, can also replace side seal 30.As a result, when replacing side seal 30, under Sealing 6 is too much without being bent.As a result, being able to suppress the deformation of lower sealing 6.

In addition, because size L1 is 1mm or more, thus substantially ensured close under clamping between developer roll 3 and side seal 30 The region of envelope 6.It is leaked between developer roll 3 and side seal 30 as a result, being able to suppress toner.Further, since size L1 For 3mm hereinafter, the region for therefore, between developer roll 3 and side seal 30 clamping lower sealing 6 is not excessive.As a result, can make to show Contact pressure general uniform between shadow roller 3 and side seal 30.

Because size L2 is 5mm or more, it is easy to lift the end in the axial direction of lower sealing 6.As a result, mentioning The high operability of replacement side seal 30.Because size L2 is 8mm hereinafter, therefore, bonding steady between lower sealing 6 and shell 2 It is fixed.

Further, since filler G is filled in the part crossed by shell 2, side seal 30 and the second sheet material 62, therefore, It is able to suppress gap of the toner between shell 2 and side seal 30 and the clearance leakage between side seal 30 and lower sealing 6. Further, since filler G is non-curable, and is not bonded, it therefore, can be easily when replacing side seal 30 It is wiped.

In addition, if notch 6C is not present in lower sealing 6, then the axially external end for the lower sealing 6 that developed roller 3 presses That is the possible warpage of direction of rotation upstream side end, with 3 strong contact of developer roll.Therefore, the contact between developer roll 3 and lower sealing 6 Pressure may not be kept constant.However, the second sheet material 62 has L-shaped, there is notch 62C, therefore, the second sheet material 62 with The notch 61C of the first sheet material 61 and notch 63C of third sheet material 63 constitutes the notch 6C of lower sealing 6 together.Pass through tool There is the notch 6C of lower sealing 6, the contact pressure between developer roll 3 and lower sealing 6 can be made uniform.

The present invention is not limited to the above embodiments, can utilize according to various modes illustrated below.Following In explanation, the component essentially identical to structure and above embodiment assigns identical appended drawing reference, and the description thereof will be omitted.

In the above-described embodiment, the base 31 of the second face 22 and side seal 30 contacts, and still, the utility model is not limited to This.For example, as shown in fig. 7, the second face 22A of shell 2A can not also be contacted with base 31 in variation.At this point, filling Agent G is in the gap between the second face 22A and base 31.Such shell 2A is also able to suppress toner from 30 He of side seal It is leaked between lower sealing 6.

In the above-described embodiment, filler G is fluorine-based lubricating grease, and still, the utility model is without being limited thereto.For example, filling out It fills agent G and is also possible to Synthetic Oil.

In the above-described embodiment, adhesive layer 63 be positive 63A and back side 63B be able to carry out bonding sheet material it is (two-sided Adhesive sheet), still, the utility model is without being limited thereto.Adhesive layer 63 is also possible to being capable of cured liquid adhesive.

In the above-described embodiment, the back side 62B of the second sheet material 62 does not have bonding agent, and still, the utility model is not limited to This.For example, it is also possible to which the bonding agent (bonding that is easily peeled off weaker than adhesive layer 63 is arranged in the back side 62B in the second sheet material 62 Agent).At this point, shell 2 can be only adhered to for the second sheet material 62 by being located at the bonding agent of the back side 62B of the second sheet material 62, it can be only It is adhered to side seal 30, both shell 2 and side seal 30 can also be adhered to.

According to this structure, when sealing 6 is bonded in shell 2 instantly, lower sealing 6 is adhered to shell 2 by adhesive layer 63, but It is, because lower sealing 6 has the second sheet material 62, the end of lower sealing 6 is adhered to side with the bonding force weaker than adhesive layer 63 Sealing 30.As a result, when replacing side seal 30, it is easy to remove side seal 30 from shell 2, therefore, can easily be done side The replacement of sealing 30.

In the above-described embodiment, the size on the surface layer 32 of side seal 30 is less than the size of base 31, and still, this is practical new Type is without being limited thereto.For example, surface layer 32 also can have size identical with base 31.

In the above-described embodiment, the second part 622 of the second sheet material 62 is configured to the rotation side from first part 621 End downstream extends, and still, the utility model is without being limited thereto.For example, second part can also be from the rotation of first part Turn the extension of direction upstream side end.In addition, second part can also extend from the direction of rotation central part of first part.That is, the Two sheet materials not only can be L-shaped, be also possible to T-shaped.

In the above-described embodiment, it as the containment member for preventing toner from leaking near the end of developer roll, shows Side seal and lower sealing, still, the utility model is without being limited thereto.For example, Delevoping cartridge can also be further provided with other sealings Component.

In the above-described embodiment, it regard the Delevoping cartridge 1 for integrally comprising toner accommodating chamber 7 as Delevoping cartridge, still, this Utility model is without being limited thereto.For example, it is also possible to which the toner Cartridge with toner accommodating chamber is installed to Delevoping cartridge and from development Box unloads.

In the above-described embodiment, using the side seal of double-layer structure 30, still, the utility model is without being limited thereto.For example, It can also be using the side seal with single layer structure or three layers or more structure.

Each element illustrated in above embodiment and variation can be implemented in any combination.

Claims (15)

1. a kind of Delevoping cartridge characterized by comprising

Developer roll has the axis for carrying the body part of toner and rotating together with the body part；

Shell can accommodate toner；

Side seal, between the end in the axial direction and the shell of the body part, with the body part described End contact in axial direction；And

Lower sealing, the lower sealing include:

First sheet material is contacted with the body part；

Adhesive layer, for first sheet material to be adhered to the shell；And

Second sheet material is adhered to the end in the axial direction of the adhesive layer, contacts with the side seal and the shell.

2. Delevoping cartridge according to claim 1, which is characterized in that second sheet material is not bonded to the side seal and institute State shell.

3. Delevoping cartridge according to claim 1, which is characterized in that the thickness of second sheet material is less than the adhesive layer Thickness.

4. Delevoping cartridge according to claim 1, which is characterized in that the thickness of second sheet material is less than first sheet material Thickness.

5. Delevoping cartridge according to claim 1, which is characterized in that second sheet material with a thickness of 0.05mm or less.

6. Delevoping cartridge according to claim 1, which is characterized in that second sheet material is made of polyester.

7. Delevoping cartridge according to claim 1, which is characterized in that in the axial direction, second sheet material with it is described The size for the part that shell is in contact is greater than the size for the part of second sheet material being in contact with the side seal.

8. Delevoping cartridge according to claim 1, which is characterized in that in the axial direction, second sheet material with it is described The size for the part that side seal is in contact is 1~3mm.

9. Delevoping cartridge according to claim 1, which is characterized in that in the axial direction, second sheet material with it is described The size for the part that shell is in contact is 5~8mm.

10. Delevoping cartridge according to claim 1, which is characterized in that the adhesive layer with a thickness of 0.3~0.6mm.

11. Delevoping cartridge according to claim 1, which is characterized in that further include the filler of non-curable, the filler It is filled in the part crossed by the shell, the side seal and second sheet material.

12. Delevoping cartridge according to claim 11, which is characterized in that the side seal includes:

Base；And

Surface layer contacts between the base and the body part with the body part,

The shell includes:

First face, with it is described under it is in sealing contact；And

Second face extends from the end in the axial direction in first face along from the lower direction left that seals, with The end contact in the axial direction of the base, leaves in the axial direction with the surface layer,

The filler is between the surface layer and second face.

13. Delevoping cartridge according to claim 11, which is characterized in that the filler is fluorine-based lubricating grease.

14. Delevoping cartridge according to claim 11, which is characterized in that the filler is Synthetic Oil.

15. Delevoping cartridge according to claim 1, which is characterized in that second sheet material has first part and second Point, the second part is from the end in the downstream side on the direction of rotation of the developer roll of the first part in the axis It upwardly extends,

On the direction of rotation, the size of the second part is less than the size of the first part.