CN201654471U - Seal component preventing tiny powder particles from leaking - Google Patents
Seal component preventing tiny powder particles from leaking Download PDFInfo
- Publication number
- CN201654471U CN201654471U CN2010201593529U CN201020159352U CN201654471U CN 201654471 U CN201654471 U CN 201654471U CN 2010201593529 U CN2010201593529 U CN 2010201593529U CN 201020159352 U CN201020159352 U CN 201020159352U CN 201654471 U CN201654471 U CN 201654471U
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- Prior art keywords
- movable body
- pile yarns
- fine
- hair
- powder particles
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Abstract
The utility model provides a seal component preventing tiny powder particles from leaking. The fibers of the sliding part coming into contact with a movable body have excellent retentivity and sufficient air tightness and can not fall off under the condition that the functions of the movable body coming into contact with tiny powder particles in the casing are not influenced, so tiny powdered ink and other tiny powder particles can be prevented from leaking. A seal component (1) is glued on a movable body coming into contact with tiny powder particles or the surface of the casing of the movable body, and a preset clearance between the movable body and the casing of the movable body is sealed without influencing the action of the movable body so as to prevent tiny powder particles from leaking. The seal component (1) comprises a pile fabric (2), the pile fabric (2) consists of pile yarns and a plain weaved texture supporting the pile yarns, the pile yarns consist of synthetic resin fibers having low friction coefficient, abrasion resistance and heat resistance, the back of the pile fabric (2) is provided with a coating (5) preventing the pile yarns from falling, and the pile yarns are tilted to one direction by heating.
Description
Technical field
The utility model relates to a kind of containment member that prevents that fine powder body from leaking, detailed say so about, for example using in the electrophotographic copier of fine ink powder, be used to prevent leak the containment member of fine ink powder from dispersing between development roller and the shell for obtaining distinct image.
Background technology
In the past, electrophotographic copier and office are suitably surrounded by shell with the Delevoping cartridge (being also referred to as developer) of printer and are constituted, by with Delevoping cartridge, by the charged development roller that has adhered to ink powder, apply ink powder and form ink powder image to the roller of photoreceptor.Then paper is laminated on the photoreceptor that forms image, and the ink powder of photosensitive surface is transferred on the paper.At corresponding shell position, two ends containment member is installed, makes two ends of development roller and the space between the shell sealed, to prevent the leakage of dispersing of ink powder with the bearing side of magnetic roller.
Containment member in the past uses and be bonded with goods wool, synthon felt or sponge, laminated structure on the felt layers of fluorofibre.
Yet, because the slipper of the containment member of above-mentioned laminated structure is a felt layers, thus bursting forth, coming off of fiber can appear, and this slipper shortage nerve, so the long-term words of using can make its sealing descend, thereby produce the problem of ink powder leakage.In addition, when being attached to containment member on the shell, on slide unit, can wrinkle occurring and produce the slit, the problem that ink powder leaks therefore also can occur.
The utility model content
The utility model is in order to solve the above-mentioned problem that exists in containment member in the past, it is a kind of that its purpose is to provide, under the situation of the function that does not hinder the movable body that contacts with fine powder body in the shell, the retentivity of the fiber of the sliding part that contacts with this movable body is not well, can come off, and have enough sealings, thereby can prevent the containment member that fine powder body such as fine ink powder leaks.The utility model is a kind of containment member that is used to prevent fine powder body leakage, the surface of shell that is bonded in the movable body of fine powder body contact or this movable body is under the situation that does not hinder this movable body action, pre-fixed gap between the shell of described movable body and this movable body sealed prevent that described powder body from leaking, it is characterized in that: based on nap fabric, this nap fabric by the pile yarns that become slip fine hair with its supporting, the base cloth of plain weave tissue constitutes, the pile yarns of described fine hair are the synthetic resin fibers with low-friction coefficient and abrasion performance, and the described base cloth back side has the coating that prevents villus shedding; And described pile yarns fall hair with the form that do not hinder movable body action to certain direction.
Based on above-mentioned formation, encapsulant is installed in the space between movable body and the shell.Because plain weave tissue, coating have flexibility, thus can be corresponding with the shape of the installation position of movable body or shell, make installation easily.The pile yarns of fine hair are by the supporting of plain weave tissue, and pile yarns can prevent to come off by coating.Space between movable body and the shell can be clogged by fine hair, the leakage of fine powder body can be prevented.Pile yarns have low-friction coefficient and abrasion performance, can be suitable for long-term use.Owing to carried out the fine hair of the pile yams line-group formation of hair with the form that does not hinder the movable body action to a direction, and can insert fine powder body in the pile yarns, so can form firm sealant.In addition, because the hair of pile yarns, the effect that intervillous space is narrowed down is arranged, make the supplemental (inserting supplemental) of fine powder body so when being promoted the leakage that can prevent fine powder body, because pile yarns are fitly to certain direction, so can suppress sliding resistance.
Preferably, described pile yarns pass through hair of heated hot roller.
Based on above-mentioned formation, by hot roller the pile yarns of hair were carried out in its heating, owing to eliminated the natural fluctuating on the pile yarns, make it open fibre raising (stretching degree of its fiber improves) and stablized sealing, so can prevent the leakage of fine powder body.
Based on the utility model, can obtain following effect.
Because the pile yarns that the fiber plucking is woven into are as fine hair, and bonding coating with flexibility has constituted containment member on the base cloth back side of plucking braiding, so the fine hair retentivity that contact with movable body well and can not come off.Carrying out on the containment member the fine hair of pile yarns of plucking braiding, in the space between movable body and shell, by adhesive linkage is mutually bonding with the side of shell or movable body, can seal this space, thereby the sealing property of the fine powder body of the fine ink powder in the shell etc. can be guaranteed fully.That is to say, owing to fine powder body is wrapped in the fine hair, so can prevent the leakage of fine powder body.The fine hair of containment member is so formed by the fiber with low-friction coefficient and abrasion performance to be suitable as the fine hair that makes it to slide because be.In addition, because fine hair has the flexibility of appropriateness, so can the holding function of movable member not exerted an influence.And,, fine powder body is wrapped in the fine hair, so when can preventing that fine powder body from leaking, also can suppress sliding resistance by by carrying out falling the fine hair that the pile yams line-group of hair constitutes to a direction with the form that do not hinder movable body action.
Description of drawings
Fig. 1 is the perspective of the containment member of the 1st embodiment
Fig. 2 is the profile of the containment member of the 1st embodiment.
Fig. 3 (a) is the skeleton diagram that has the base cloth of fine hair before the demonstration dabbing.
Fig. 3 (b) is the skeleton diagram that has the base cloth of fine hair behind the demonstration dabbing.
Fig. 4 is the use aspect graph that is positioned at the containment member of Delevoping cartridge.
Fig. 5 is the enlarged drawing of containment member application site.
Fig. 6 is near the skeleton diagram the Delevoping cartridge.
Fig. 7 is the Action Specification figure of containment member.
Symbol description
The 1-containment member, 2-base cloth, 3-fine hair, 5-coating, 5A-adhesive coating, 6-cushion, 21-shell, 24-development roller, 26-space, 27-ink powder
Embodiment
The inventor tests single thread fineness, the height of fine hair and scope piloerection density, that fine ink powder can not leak of fine hair of the pile yarns of formation fine hair, has obtained following suitable scope.In usage range, the single thread fineness that forms the pile yarns of fine hair is set at 1～15 denier for best.If its fineness is lower than 1 denier, pile yarns can break owing to friction, if surpass 15 deniers, sliding resistance are uprised.The height of fine hair is preferably 1.0～4.0mm.The fine hair that is shorter in length than 1.0mm can not fully be guaranteed sealing, and length surpasses under the situation of 4.0mm, though can not impact sealing, cost is uprised.The piloerection density of fine hair is set in 4～200,000/In
2Be the best.If be less than 40,000/In
2The leakage of fine powder body will take place, more than 200,000/In
2Cost is uprised.As mentioned above, the fine hair in the present embodiment has been selected the scope of the good practicality of economy.
Cushion has used the foaming body of polyurethane.This cushion need have can with the flexibility of the bonding well appropriateness of case surface.In addition, the material of cushion is not limited to polyurethane, also can be materials such as rubber, synthetic rubber.
The hair processing of falling of fine hair is to be undertaken by pushing the pile yarns of fine hair part to certain direction with the hot roller that is heated to 80～150 ℃.By hot roller is warmed to 80～150 ℃, can eliminate the inhomogeneous hair of fine hair and the fluctuating of yarn.
Then, with reference to Fig. 1～Fig. 7 the 1st embodiment of the present utility model is described.The containment member of present embodiment is for being applicable to, used member in the Delevoping cartridge of electrophotographic copier of fine ink powder, the development roller in order to obtain high-resolution image.Fig. 1 shows the perspective state of containment member 1, and Fig. 2 enlarges the cross-section structure that shows containment member 1.
This containment member 1 is engaged and is constituted by the coating 5 at the base cloth 2 with fine hair 3, base cloth 2 back sides and soft also rubber-like cushion 6, is provided with the assembling adhesive coating 7 for said structure being fixed to application site below cushion 6.As shown in Figure 2, the base cloth 2 with plain weave tissue is on the one side of base cloth 2 the fluorine resin fiber to be woven on weft yarn 2A and the warp thread 2B as fine hair 3 pluckings of pile yarns and to form.Described fine hair 3 is parts that contact and slide with development roller 24 described later.
As shown in Figures 1 and 2, fine hair 3 falls hair with respect to base cloth 2 to certain direction.In falling in the hair processing of fine hair, fabric that can be by plucking is woven into, promptly as Fig. 3 (a) shown in have the base cloth 2 of erectting fine hair 3 pass a pair of hot roller (not giving diagram) that has been heated be processed into shown in Fig. 3 (b) mao after the state of fine hair 3.
Because the friction factor of fluorine resin fiber is low, so be suitable as the material of fine hair 3.This fluorine resin can be formed by for example polytetrafluoroethylene (PTFE), perfluoroethylene-propylene (FEP) (multipolymer of tetrafluoroethene and hexafluoropropylene), tetrafluoroethene and perfluoroalkyl vinyl ether multipolymer (PFA), TFE copolymer resins such as (ETFE).
In addition, as the fiber of fine hair, also can be ultra-high molecular weight polyethylene, polypropylene, polyamide, aromatic polyamide, polyoxymethylene etc.Fine hair 3 can constitute by having low-friction coefficient, abrasion performance and stable on heating fiber.
The back side at the base cloth 2 with the finished fine hair 3 of hair is formed with coating 5.Coating 5 is formed by water miscible emulsion.As the material of water miscible emulsion, can enumerate styrene-butadiene rubber (SBR), ethylene-vinyl acetate copolymer (EVA), polymethylmethacrylate (PMMA) etc., used ethylene-vinyl acetate copolymer (EVA) in the present embodiment.As shown in Figure 2, at the back side of coating 5, coating 5 and cushion 6 engage by adhesive coating 5A.Adhesive coating 5 uses the sticker of general rubber-like, acrylic compounds etc., perhaps uses the pressure sensitivity sticker.
Cushion 6 preferably uses age inhibiting endurance quality, material that heat resistance is superior, in order to obtain that it enough closely is attached on the movable body, does not hinder the flexibility and the elasticity of rotation, preferably uses the foaming body about 3～30 times.Cushion 6 in the present embodiment has used heat resistance, the polyurethane foam that oxidation resistent susceptibility is superior.
The assembling that is used for cushion 6 is installed and fixed the appropriate location has been used the pressure sensitivity sticker of above-mentioned rubber-like, acrylic compounds with adhesive coating 7, also can use general sticker.The pressure sensitivity sticker of acrylic compounds has been used in installation in the present embodiment with adhesive coating 7.
As shown in Figure 6, be provided with the roller and the paper 29 of photoreceptor 28 near Delevoping cartridge 20, as Fig. 4 and shown in Figure 5, the containment member 1 in the present embodiment is used to seal the development roller 24 in the Delevoping cartridge 20 that is in electrophotographic copier.That is to say, in the shell 21 of Delevoping cartridge 20, development roller 24 is set to horizontal, be bearing in the form that can rotate driving by the fulcrum 25 at two ends on the bearing 22 of shell 21 of Delevoping cartridge 20, roller surface when duplicating is adsorbing charged fine ink powder 27, this ink powder is rotated, and is applied to as shown in Figure 6 on the photoreceptor 28.The image of the fine ink powder 27 of photoreceptor 28 is transferred on the paper 29.
As Fig. 4 and shown in Figure 5, the corresponding part in both ends (Fig. 4 and Fig. 5 only represent right part one side) with above-mentioned development roller 24 on shell 21 has formed the circular depressions (concave curvatures) 23 of diameter greater than development roller 24, in order to make containment member 1 seal space between the inner peripheral surface of the end outer peripheral face of development roller 24 and this circular depressions 23, containment member 1 is installed in the circular depressions 23 with the form of fine hair 3 towards the contact direction (sense of rotation of development roller 24) of fine ink powder 27.The assembling of containment member 1 is to finish by assembling to bond on the inner peripheral surface of circular depressions 23 with adhesive coating 7.Also have elasticity because cushion 6 is soft, thus can be corresponding with the curved surface of circular depressions 23 easily, make the in order bonding of cushion 6.In addition, install and to use by the two sides adhesive tape as core such as nonwoven fabrics, film with sticker 7, any one of two sides adhesive tape that does not perhaps have core, but owing to there is not the two sides adhesive plaster of core to be rich in retractility and good to the following of curved surface, so can prevent the fold of encapsulant 1, be suitable for this purposes.
Then, the development roller 24 of Delevoping cartridge 20 carries out electrofax and duplicates with the same being used usually, because it is bonding and be bearing on the inner peripheral surface of circular depressions 23 by the cushion in the containment member 16, and form sliding part, rubber-like fine hair 3 is in and the contacted state in the end of development roller 24, make in the situation lower seal space 26 of the rotation that can not hinder development roller 24, thereby prevent that fine ink powder 27 is to shell 21 external leakages.
As shown in Figure 5, because being installed in the fine hair 3 of the containment member 1 in the space 26 between shell 21 and the development roller 24 is in to the sense of rotation of development roller 24 and falls the state of hair, make corresponding and wrapped up by fine hair 3, so can prevent 26 leakages of fine ink powder 27 from the space to the fine ink powder 27 that containment member 1 side is sent with the rotation of development roller 24.Because the fine ink powder 27 and the fine hair 3 that are wrapped up by fine hair 3 have formed firm sealant, afterwards the fine ink powder of sending to containment member 1 side 27 is pushed back, so that the sealing of fine ink powder 27 is good.
The containment member of present embodiment is applicable to electrophotographic copier and the office development roller of printer, thereby prevented that fine ink powder from dispersing from the space between development roller and the shell, but the containment member in the utility model is not limited thereto the situation of development roller, can also send roller as the powder body that for example is applicable to packaging machine that electrophotographic copier and office are packed with the medicament of the cleaning part of printer or fine powder body (powder or particle) etc., thereby prevent that medicament from sending from this that space between roller and the shell disperses etc., prevent that the encapsulant that fine powder body leaks is extensive use of.
In addition, the article construction in the utility model is not limited to the mode of above-mentioned enforcement, for example also can omit cushion 6, and only uses encapsulant 1 and assembling to constitute with adhesive coating 7.Narrow situation adopts such embodiment, even also can be suitable for containment member of the present utility model in the space.
Claims (2)
1. containment member that is used to prevent that fine powder body from leaking, be bonded in the surface of the shell of the movable body of fine powder body contact or this movable body, thereby under the situation that does not hinder the action of this movable body, the pre-fixed gap between the shell of described movable body and this movable body sealed and prevent described powder body leakage
It is characterized in that: based on nap fabric, this nap fabric by the pile yarns that become slip fine hair with base cloth its supporting, the plain weave tissue is constituted, the pile yarns of described fine hair are the synthetic resin fibers with low-friction coefficient and abrasion performance, and the described base cloth back side has the coating that prevents villus shedding;
And described pile yarns fall hair with the form that do not hinder movable body action to certain direction.
2. the containment member that is used to prevent fine powder body leakage according to claim 1 is characterized in that: described pile yarns pass through hair of heated hot roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201593529U CN201654471U (en) | 2010-03-15 | 2010-03-15 | Seal component preventing tiny powder particles from leaking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201593529U CN201654471U (en) | 2010-03-15 | 2010-03-15 | Seal component preventing tiny powder particles from leaking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201654471U true CN201654471U (en) | 2010-11-24 |
Family
ID=43119715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201593529U Expired - Lifetime CN201654471U (en) | 2010-03-15 | 2010-03-15 | Seal component preventing tiny powder particles from leaking |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201654471U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107709850A (en) * | 2015-09-09 | 2018-02-16 | 霓达株式会社 | Seal and sealing mechanism |
-
2010
- 2010-03-15 CN CN2010201593529U patent/CN201654471U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107709850A (en) * | 2015-09-09 | 2018-02-16 | 霓达株式会社 | Seal and sealing mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101124 |
|
| CX01 | Expiry of patent term |