CN102040108A - Multiple paper sheets feeding prevention component - Google Patents
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- CN102040108A CN102040108A CN2010102944654A CN201010294465A CN102040108A CN 102040108 A CN102040108 A CN 102040108A CN 2010102944654 A CN2010102944654 A CN 2010102944654A CN 201010294465 A CN201010294465 A CN 201010294465A CN 102040108 A CN102040108 A CN 102040108A
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Abstract
The present invention provides a multiple paper sheets feeding prevention component which is provided with a contact surface that contacts with the paper sheet. Furthermore the contact surface comprises a polyurethane elastomer and at least one thermoplastic elastomer as the elastomer components. Furthermore the proportion of the polyurethane elastomer relatively to the total amount of the elastomer components is not less than 5wt% and does not exceed 90wt%.
Description
Technical field
The present invention relates to a kind of be used for more than of many stack papers separately and paper feed prevent multipage paper feed parts.
Background technology
For example, xerographic printer, laser printer, common paper facsimile unit have the paper feeding box of imaging device of multi-function printer of these apparatus functions or paper feed tray etc. in, a kind of paper feed mechanism is provided, is used for preventing to pile up more than two the paper mistake paper feed (multipage paper feed) in overlapped that is contained in paper feeding box etc.Paper feed mechanism generally comprises that feeding-in roll that outer peripheral face at least is made up of rubber etc. and the pressure by spring etc. can contact with the feeding-in roll outer peripheral face prevents multipage paper feed parts.
In second that prevents from by the friction force that prevents multipage paper feed parts to pile up paper error paper feed that reaches subsequently, paper feed mechanism only separates first paper that contacts with feeding-in roll with other paper, and by the rotation of feeding-in roll it is sent.
As preventing multipage paper feed parts, use separating pad with writing board shape surface or separating sheet etc. usually, described surface contacts (for example, referring to Patent Document 1 (Japanese uncensored patent disclosure No.2003-321580)) with feeding-in roll and paper.
Summary of the invention
Usually, as the parts that prevent plain paper multipage paper feed separating pad for example, prevent the parts of multipage paper feed general use at least its mating surfaces or preferably its integral body forms by cross-linked material (sulfide), described cross-linked material is writing board shape by the composite mold pressing that will comprise following composition and passes through crosslinked acquisition: crosslinking agent (vulcanizator); Rubber is ethylene propylene diene rubber (EPDM), natural rubber, poly-urethane rubber, poly-chloroprene rubber, government rubber (NBR) etc. for example.
Yet, in recent years, have a kind of demand: by using because its themoplasticity is easy to reusable so-called thermoplastic elastomer forms and prevent multipage paper feed parts.
The multipage paper feed parts of being made up of thermoplastic elastomer that prevent not only need to possess the outstanding multipage paper feed effect (preventing second page and the paper error paper feed that piles up subsequently by aforesaid friction force) that prevents, and can cause so-called point ring (screeching) phenomenon hardly, that is because (chatter vibrations) and abnormal sound are vibrated in the flutter that the friction with feeding-in roll and paper produces.
For example, can form that to have these thermoplastic elastomers that go out the parts that prevent the multipage paper feed of color characteristic be the elastic body with composite structure, it is by dynamic crosslinking EPDM in the matrix of being made up of thermoplastic base resin or thermoplastic elastomer or polyester elastomer etc. and EP rubbers (EPM) acquisition.
Yet, prevent multipage paper feed parts and its resistance to abrasion deficiency of comparing of making by the rubber cross material by what these thermoplastic elastomers were formed.
The object of the present invention is to provide a kind of have outstanding prevent multipage paper feed effect and prevent point ring effect and have an outstanding resistance to abrasion prevent multipage paper feed parts.
Traditional prevent that by what the rubber cross material was made multipage paper feed parts can for example carbon black, silicon dioxide, calcium carbonate and french talc wait and improve resistance to abrasion by comprising customary filler.Yet even be known that and comprise conventional filler, thermoplastic elastomer can not present enough strengthening actions.
Therefore, the contriver further studies the material that has outstanding thermoplastic elastomer strengthening action and replace conventional filler, and therefore, found by the polyurethanes elastic body of predetermined ratio is sneaked in another thermoplastic elastomer, can improve the resistance to abrasion that prevents multipage paper feed parts, and with only use another thermoplastic elastomer separately or only use the elastomeric situation of polyurethanes to compare separately, can also improve the effect that prevents the multipage paper feed that prevents multipage paper feed parts and suppress the effect of point ring.
For example, in the thermoplastic elastomer of the material that prevents multipage paper feed parts that becomes patent documentation 1 (the patent disclosure No.2003-321580 of Japanese unexamined), the polyurethanes elastic body matrix that acts on dynamic crosslinking EPDM and EPM, and in patent documentation 2 (the patent disclosure No.2004-346139 of Japanese unexamined), also use the matrix that acts on the dynamic crosslinking butaprene.In addition, in patent documentation 3 (the patent disclosure No.2006-208594 of Japanese unexamined), the polyurethanes elastic body was once disperseed as the soft particle in the poly-urethane rubber cross-linked material.
Yet, even when preventing that multipage paper feed parts from being to have in the elastic body etc. of composite structure as mentioned above any one by use formed the time, can not obtain and use preventing the same outstanding enhancing effect of multipage paper feed parts, prevent multipage paper feed effect and preventing point ring effect of polyurethanes elastic body and another thermoplastic elastomer simultaneously.
Therefore, according to the present invention, prevent that multipage paper feed parts have the mating surfaces that contacts with paper, and this mating surfaces comprises polyurethanes elastic body and at least a thermoplastic elastomer as elastomeric component at least, and the ratio of polyurethanes elastic body relative resilient body component total content is not less than 5 quality % and is no more than 90 quality %.
According to the present invention, can provide a kind of have outstanding prevent multipage paper feed effect and prevent point ring effect and have an outstanding resistance to abrasion prevent multipage paper feed parts.
Description of drawings
Fig. 1 is the transparent view that presents the embodiment in the specific embodiment that prevents multipage paper feed parts of the present invention.
Fig. 2 is the transparent view that presents the embodiment that the paper feed mechanism that prevents multipage paper feed parts among Fig. 1 embodiment has been installed in it.
Fig. 3 is the transmission electron micrograph that prevents the disperse state in the multipage paper feed parts that presents the manufacturing in embodiments of the invention 1 of polyurethanes elastomer particles.
Fig. 4 is the transmission electron micrograph that prevents the disperse state in the multipage paper feed parts that presents the manufacturing in embodiments of the invention 2 of polyurethanes elastomer particles.
The specific embodiment
Fig. 1 is the transparent view that presents the embodiment in the specific embodiment that prevents multipage paper feed parts of the present invention.Fig. 2 is the transparent view that presents the embodiment that the paper feed mechanism that prevents multipage paper feed parts among Fig. 1 embodiment has been installed in it.
With reference to figure 2, the paper feed mechanism 1 of this embodiment comprises the feeding-in roll 3 that outer peripheral face 2 at least is made up of rubber etc. and prevents multipage paper feed parts (separating pad) 4 that these parts are configured to contact with the outer peripheral face 2 of feeding-in roll 3 by the pressure of (not shown) such as spring.
In this embodiment, prevent that multipage paper feed parts 4 have rectangular planar shape, and it supports with supported 6 of following state: the upper surface (contact surface) 5 as a surface of the aspect among the figure is exposed.Under the relative state of the outer peripheral face 2 of contact surface 5 and feeding-in roll 3, by brace table 6 being pressed to outer peripheral face 2 with the direction shown in the arrow (outlined arrow) of Outline in scheming, contact surface 5 can be contacted by predetermined crimp force (pressure-welding force) with outer peripheral face 2 via (not shown) such as springs.
The rotation of the direction shown in the dotted arrow that replaces along length among the figure by feeding-in roll 3, paper feed mechanism 1 only will with first paper 7 of feeding-in roll 3 contact with separate with other paper 7, and first paper sent into the imaging device inboard shown in solid arrow among the figure, simultaneously by with the friction force that friction produced of the contact surface 5 that prevents multipage paper feed parts 4, prevent to send to piling up and being contained in the paper feeding box of imaging device or the paper feed tray second and paper 7 subsequently.
With reference to Fig. 1, this embodiment prevent multipage paper feed parts 4 by contain as the composition in its entirety of the polyurethanes elastic body of elastomeric component and at least a thermoplastic elastomer be molded and be rectangular planar shape.
The polyurethane kind elastic body is all kinds ofly to comprise hard segment with polyurethane structural and have in the polyurethanes elastic body of soft chain segment of polyester or polyether structure one or more.
Another thermoplastic elastomer preferred polyester class elastic body that uses with the polyurethanes elastic body, polyvinylchloride, polyvinyl alcohol etc., and special preferred polyester class elastic body.
Polyester elastomer is one or more in the various polyester elastomers, for example comprises the segmented copolymer of the amorphous polyethers (polytetramethylene ether glycol etc.) of the glass transition temperature that is no more than-70 ℃ as the aromatic polyester with high melting point and high-crystallinity (polybutylene terephthalate etc.) of hard segment with as having of soft chain segment.
In elastomeric component, mainly can comprise conventional packing for example carbon black, silicon dioxide, calcium carbonate, french talc etc. in order to regulate the rubber hardness that prevents multipage paper feed parts 4 etc.
In the present invention, polyurethanes elastic body relative resilient body component total content (that is, for example, when polyurethanes elastic body and these elastic bodys of polyester elastomer use together, these two kinds of elastomeric total amounts of polyurethanes elastic body and polyester elastomer) ratio must be not less than 5 quality % as mentioned above and be no more than 90 quality %
When the elastomeric ratio of polyurethanes is lower than this scope, can not obtain as mentioned above owing to mix the effect that prevents multipage paper feed effect and resistance to abrasion that the raising of using polyurethanes elastic body and another thermoplastic elastomer to be caused prevents multipage paper feed parts 4.On the other hand,, not only can not obtain further effect, and prevent that the effect of point ring from reducing if ratio surpasses this scope.
When considering further to improve when preventing multipage paper feed effect and resistance to abrasion, the ratio of polyurethane elastomer preferably is not less than 20 quality % when considering further to improve when preventing that point from ringing effect in this scope, and this ratio preferably is no more than 80 quality %.
When using polyurethanes elastic body and these two kinds of elastic bodys of polyester elastomer, elastomeric component preferably presents one of following two kinds of forms:
(1) comprises the island structure of the polyester elastomer particle that is dispersed in the polyurethanes elastic body; Perhaps
(2) comprise the island structure of the polyurethanes elastomer particles that is dispersed in the polyester elastomer.
Particle diameter corresponding to the elastomer particles on the island of island structure (1) or (2) preferably is no more than 1 μ m.When the particle diameter on the island of island structure surpasses this scope, can not obtain enough effects, that is improve and prevent preventing multipage paper feed effect and preventing point ring effect and the effect that improves resistance to abrasion of multipage paper feed parts 4.
In the present invention, particle grain size is expressed as via the value that graphical analysis obtained to the image of DFM (phase) form that shows the elastomeric component that obtains by use scanning probe microscopy (SPM).
For example, in island structure (1) and (2) any one introduced in elastomeric component, mediate by mixing two kinds of elastic bodys with predetermined ratio and taking the circumstances into consideration to sneak into the compound that filler etc. is obtained, simultaneously by using for example double screw extrusion machine heating.
The island structure of elastomeric component (1) and (2) present and mainly depend on the volume ratio of polyurethanes elastic body to polyester elastomer.Specifically, usually, marine what be made up of the component with larger volume ratio, the component with smaller size smaller ratio is disperseed as the island, thereby forms island structure.
By with any one is introduced in the elastomeric component in island structure (1) and (2), can further improve the performance that prevents multipage paper feed parts 4.
For example, polyester elastomer is rich on volume ratio also to be formed when comprising the island structure (2) of the polyurethanes elastomer particles that is dispersed in the polyester elastomer so that become when the mixed elastomer component, although polyurethane for example polyurethanes elastic body etc. is unfavorable to preventing point ring effect usually, but keep preventing multipage paper feed parts 4 prevent multipage paper feed effect and resistance to abrasion in, still can improve and prevent point ring effect, and can well balanced these performances.
The polyurethanes elastic body is rich also to be formed when comprising the island structure (1) of the polyester elastomer particle that is dispersed in the polyurethanes elastic body so that become when the mixed elastomer component, when the point ring property retention that will prevent multipage paper feed parts 4 is in permissible range, can significantly improves and prevent multipage paper feed effect and resistance to abrasion.
By mix the two or more also kneadings such as fillers that comprise the elastomeric elastic body of polyurethanes and take the circumstances into consideration to add with predetermined ratio, preventing multipage paper feed parts 4 by these elastic body manufacturings of mold pressing when using double screw extruder heating as mentioned above then.
In order to prevent that 4 mold pressings of multipage paper feed parts from being rectangular planar shape as shown in fig. 1, the material of mediating is molded to writing board shape or chip shape and is cut into predetermined plane shape (rectangular shape), and the material of perhaps mediating is poured in the mould and mold pressing is a rectangular planar shape by filling to wait.
Can will prevent that multipage paper feed parts 4 are adjusted into and have predetermined surface roughness and thickness by grind waiting.
Consider in its paper feed mechanism 1 of packing into, the thickness that prevents multipage paper feed parts 4 preferably with traditional equating.Although this depends on the structure etc. of the imaging device of the structure of paper feed mechanism 1 and the paper feed mechanism 1 of packing into, this thickness is 0.2mm at least preferably, more preferably 0.4mm at least, and preferably be no more than 4mm, more preferably no more than 3.5mm.
Obtain to prevent the hardness of multipage paper feed parts 4 according to illustrated method of measurement in " polysulphide rubbers or thermoplastic rubber---hardness test " among the JIS K 6253:2006.Under the relative humidity of 23 ± 1 ℃ temperature and 55 ± 1%, prevent that multipage paper feed parts preferably have the A type hardness tester meter hardness that is not less than A60/S, more preferably are not less than A70/S, and are no more than A95/S, more preferably no more than A90/S.
Be lower than this scope if prevent the hardness of multipage paper feed parts 4, the contact surface 5 that prevents multipage paper feed parts 4 is so crossed soft and is easy to wearing and tearing by the friction with paper.If hardness above this scope, prevents 4 hardening of multipage paper feed parts so and when contact surface 5 contacts with the outer peripheral face 2 of feeding-in roll 3, tends to reduce along the distortion of thickness direction.Therefore, thus the effect that prevents the multipage paper feed of utilizing the friction force of contact surface 5 to produce reduces the paper multipage paper feed that can not prevent to have different coefficients of friction fully reliably.
For example, in order to adjust the hardness that prevents multipage paper feed parts 4, kind and the content that can select elastomeric kind and grade and adjust filler.
Prevent that multipage paper feed parts 4 can be fixed in the paper feed mechanism 1 of packing on the brace table 6 by using Acrylic Foam Tape or double-back tape etc.
[embodiment]
Except the condition of special version, under the environment of the relative humidity of 23 ± 1 ℃ temperature and 55 ± 1%, in embodiment as described below and the reference examples prevent that multipage paper feed parts from making, performance measurement and test.
＜embodiment 1 〉
The polyester elastomer (Hytrel (registered trade mark (RTM)) 3046 that DU PONT-TORAY Co., Ltd is made) that mixes 70 mass parts, the polyurethane kind elastic body of 30 mass parts (Elastollan (registered trade mark (RTM)) ET 880 that BASF Japan Co., Ltd. makes), and 1 mass parts carbon black (trade name: SEAST SO, Tokai Carbon Co., Ltd is made), mediate by using double screw extruder, by using single-screw extrusion machine to extrude mold pressing is have 1.35mm thickness laminar, be cut into rectangular shape then, and grind its surface, that makes rectangular planar shape with 1.0mm thickness thus prevents multipage paper feed parts.
By the form of using scanning probe microscopy (the STI 3800N that Seiko Instruments Co., Ltd is made) to observe the elastomeric component that prevents multipage paper feed parts among the embodiment 1, and as shown in Figure 3, can confirm that its form is rendered as the island structure that comprises the polyurethanes elastomer particles (dark space part among the figure) that is dispersed in polyester elastomer (clear zone among the figure).The particle diameter of the polyurethanes elastomer particles that is obtained by graphical analysis Fig. 3 is 0.5 μ m.
＜embodiment 2 〉
Make in the same way have an identical shaped and same size with embodiment 1 prevent multipage paper feed parts, the ratio of different is polyester elastomer adjusts to 30 mass parts and the elastomeric ratio of polyurethanes is adjusted to 70 mass parts.
By the form of using scanning probe microscopy to observe the elastomeric component that prevents multipage paper feed parts among the embodiment 2, and as shown in Figure 4, can confirm that its form is rendered as the island structure that comprises the polyester elastomer particle (clear zone part among the figure) that is dispersed in polyurethanes elastic body (dark space among the figure).The particle diameter of the polyurethanes elastomer particles that is obtained by graphical analysis Fig. 4 is 0.8 μ m.
Comparison diagram 3 and Fig. 4, the island structure among Fig. 3 is more clear, and infers that this textural difference shows performance balance in described after a while embodiment 1 and 2, particularly prevents the difference of point ring effect.
＜embodiment 3 〉
Make in the same way have an identical shaped and same size with embodiment 1 prevent multipage paper feed parts, the ratio of different is polyester elastomer adjusts to 93 mass parts and the elastomeric ratio of polyurethanes is adjusted to 7 mass parts.
＜embodiment 4 〉
Make in the same way have an identical shaped and same size with embodiment 1 prevent multipage paper feed parts, the ratio of different is polyester elastomer adjusts to 15 mass parts and the elastomeric ratio of polyurethanes is adjusted to 85 mass parts.
＜comparative example 1 〉
Make in the same way have an identical shaped and same size with embodiment 1 prevent multipage paper feed parts, the elastomeric ratio of polyurethanes that different is is adjusted to 100 mass parts and mixed polyester class elastic body not.
＜comparative example 2 〉
Make in the same way have an identical shaped and same size with embodiment 1 prevent multipage paper feed parts, the ratio of different is polyester elastomer is adjusted to 100 mass parts and is not mixed the polyurethanes elastic body.
＜comparative example 3 〉
Make in the same way have an identical shaped and same size with embodiment 1 prevent multipage paper feed parts, the ratio of different is polyester elastomer adjusts to 97 mass parts and the elastomeric ratio of polyurethanes is adjusted to 3 mass parts.
＜comparative example 4 〉
Make in the same way have an identical shaped and same size with embodiment 1 prevent multipage paper feed parts, the ratio of different is polyester elastomer adjusts to 7 mass parts and the elastomeric ratio of polyurethanes is adjusted to 93 mass parts.
＜comparative example 5 〉
Mix and mediate the resin cross-linking agent (TACKIROL (registered trade mark (RTM)) 250-III that Taoka Chemical Co., Ltd. makes) of 70 mass parts EPDM (Esprene (registered trade mark (RTM)) E505 of Sumitomo Chemical Co's manufacturing), 30 mass parts polypropylene (NOVATEC (registered trade mark (RTM)) MG05ES that Japan Polypropylene Co., Ltd. makes), 1 mass parts carbon black (aforesaid SEAST SO) and 5.6 mass parts, thus and the dynamically crosslinked elastic composition that comprises the EPDM cross-linked material that is dispersed in the polypropylene for preparing of EPDM quilt.
Next, elastic composition is to have the chip shape of 1.35mm thickness and be cut into rectangular shape by using single screw extrusion machine to be extruded mold pressing, and its surface is ground, thus produce rectangular planar shape with 1.0mm thickness prevent multipage paper feed parts.
＜hardness measurement 〉
By illustrated method of measurement among the above-mentioned JIS K 6253:2006, measure the A type hardness tester meter hardness that prevents multipage paper feed parts according to embodiment and comparative example manufacturing.
The measurement of＜friction coefficient 〉
(TRIBOGEAR (registered trade mark (RTM)) the type HEIDON (registered trade mark (RTM))-14DR) that SHINTO Scientific Co., Ltd. makes measures the friction coefficient of measuring the common paper (the Properbond paper (PB paper) that Canon Inc. makes) of paper according to the surface that prevents multipage paper feed parts of embodiment and comparative example manufacturing with respect to conduct to use the superficial makings measurement mechanism.As measuring condition, prevent that the in-plane of multipage paper feed parts is of a size of 10mm * 30mm, load is 1.96N (200gf), and speed is 600mm/ minute.
＜abrasion test 〉
After the initial mass of measuring according to embodiment and reference examples manufacturing as mentioned above that prevents multipage paper feed parts, with preventing that multipage paper feed parts from substituting the true separating pad of monochrome laser printer (LBP-1420 that Canon Inc. makes).
Then, measure continuously, and that will obtain and difference initial mass are as the abrasion loss (mg) of assessing resistance to abrasion by the quality that prevents multipage paper feed parts after the paper of 3000PPC.
＜point ring assessment 〉
By whether point takes place during the PPC paper ring continuously in abrasion test according to following criterion evaluation.
Two circles mark: the point ring does not take place fully.
Circles mark: little point ring takes place, but be confirmed as permissible.
Warning triangle: point ring not frequently but take place once in a while and needing can not be defined as improving.
The spider mark: the point ring is frequent to be taken place.
＜multipage paper feed 〉
Continuous in whether the multipage paper feed of two above PPC paper takes place during the PPC paper in abrasion test according to following criterion evaluation.
Circles mark: the multipage paper feed does not take place fully.
Warning triangle: the multipage paper feed occurs once or several times.
The spider mark: the multipage paper feed frequently takes place.
The result is as shown in table 1.
From table 1, can find to have less friction coefficient and cause the multipage paper feed easily by the multipage paper feed parts that prevent that comprise the comparative example 5 that the elastic composition that is scattered in the crosslinked EPDM in the polypropylene makes, and have bigger abrasion loss and resistance to abrasion deficiency, and cause the point ring easily.
By only using preventing multipage paper feed parts and using the polyurethanes elastic body simultaneously and the multipage paper feed parts that prevent of the comparative example 4 of polyester elastomer (the elastomeric ratio of polyurethanes is adjusted to 93 quality %) have the friction coefficient bigger than comparative example 5, outstanding multipage paper feed effect, littler abrasion loss and the outstanding resistance to abrasion of preventing of comparative example 1 that the polyurethanes elastic body makes as elastomeric component, yet, still can cause the point ring.
Only use polyester elastomer preventing multipage paper feed parts and using the polyurethanes elastic body simultaneously and the multipage paper feed parts that prevent of the comparative example 3 of polyester elastomer (the elastomeric ratio of polyurethanes is adjusted to 3 quality %) can not cause the point ring fully as the comparative example 2 of elastomeric component, yet, they have the friction coefficient more smaller than the friction coefficient of comparative example 1 and 4, and so easier multipage paper feed that causes, and have bigger abrasion loss, and resistance to abrasion deficiency.
On the other hand, the multipage paper feed parts that prevent of embodiment 1 to 4 have great friction coefficient, outstanding multipage paper feed effect, less abrasion loss and the outstanding resistance to abrasion of preventing, and, the point of these parts ring is in permissible range in addition, wherein saidly prevents that multipage paper feed parts from using the ratio of polyurethanes elastic body and polyester elastomer and polyurethanes elastic body relative resilient body component total amount to adjust to simultaneously and being not less than 5 quality % and being no more than 90 quality %.
Especially, use polyurethanes elastic body and polyester elastomer to have great friction coefficient simultaneously as the multipage paper feed parts that prevent of the embodiment 1 of elastomeric component, the outstanding multipage paper feed effect that prevents, and less abrasion loss and outstanding resistance to abrasion, and in addition, can not cause the point ring fully, wherein in described elastomeric component, the elastomeric ratio of polyurethanes is adjusted to the ratio of 30 quality % and polyester elastomer and is adjusted to 70 quality % (polyester elastomer affluence), and presents the form of the island structure that as above comprises the Fig. 3 that is dispersed in the polyurethanes elastomer particles of stating in the polyester elastomer.
Use polyurethanes elastic body and polyester elastomer can cause slight point ring simultaneously as the multipage paper feed parts that prevent of the embodiment 2 of elastomeric component, yet, this point ring is in permissible range, and this prevents that multipage paper feed parts have great friction coefficient and the outstanding multipage paper feed effect that prevents, very little abrasion loss and outstanding especially resistance to abrasion, wherein, in described elastomeric component, the elastomeric ratio of polyurethanes is adjusted to the ratio of 70 quality % and polyester elastomer and is adjusted to 30 quality % (polyurethanes elastic body affluence), and presents the form of the island structure of the Fig. 4 that comprises the polyester elastomer particle that is dispersed in the polyurethanes elastic body as mentioned above.
The specific embodiment of the present invention just is used to illustrate the specific embodiment of the technology of the present invention content, and should not be construed as the present invention and be limited to these detailed embodiment, and protection scope of the present invention and content are only invested the restriction of claim herein.
The Japanese patent application No.2009-240634 that the application submitted to Japanese Patent office based on October 19th, 2009, so its whole disclosures are combined in this by reference.
Claims (5)
1. one kind prevents multipage paper feed parts, it comprises the contact surface that contacts with paper, it is characterized in that, at least described contact surface comprises polyurethanes elastic body and at least a thermoplastic elastomer as elastomeric component, and the ratio of the total amount of described polyurethanes elastic body relative resilient body component is not less than 5 quality % and is no more than 90 quality %.
2. the multipage paper feed parts that prevent as claimed in claim 1 is characterized in that, described elastomeric component is made by polyurethanes elastic body and these two kinds of elastic bodys of polyester elastomer.
3. the multipage paper feed parts that prevent as claimed in claim 2 is characterized in that described elastomeric component presents island structure, and it comprises the described polyester elastomer particle that is dispersed in the described polyurethanes elastic body.
4. the multipage paper feed parts that prevent as claimed in claim 2 is characterized in that described elastomeric component presents island structure, and it comprises the described polyurethanes elastic body body particle that is dispersed in the described polyesters elasticity.
5. as claim 3 or the 4 described multipage paper feed parts that prevent, it is characterized in that, be no more than 1 μ m corresponding to the particle diameter of the elastomer particles on the island in the described island structure.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009-240634 | 2009-10-19 | ||
| JP2009240634A JP5260466B2 (en) | 2009-10-19 | 2009-10-19 | Paper sheet double feed prevention member |
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| Publication Number | Publication Date |
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| CN102040108A true CN102040108A (en) | 2011-05-04 |
| CN102040108B CN102040108B (en) | 2016-01-20 |
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| JP6091224B2 (en) | 2013-01-23 | 2017-03-08 | 住友ゴム工業株式会社 | Feeding material |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1447836A (en) * | 2000-08-14 | 2003-10-08 | 株式会社可乐丽 | Polymer compsn. |
| JP2005206303A (en) * | 2004-01-21 | 2005-08-04 | Sumitomo Rubber Ind Ltd | Double-feed prevention member for paper sheet |
| JP2008013295A (en) * | 2006-07-04 | 2008-01-24 | Sumitomo Rubber Ind Ltd | Member for preventing double feed of paper sheets |
| CN101253043A (en) * | 2005-08-31 | 2008-08-27 | 利乐拉瓦尔集团及财务有限公司 | Packaging layered material |
| CN101395214A (en) * | 2006-03-03 | 2009-03-25 | 横滨橡胶株式会社 | Elastomer composition, method for producing same, and pneumatic tire using same |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000255816A (en) * | 1999-03-04 | 2000-09-19 | Toyo Tire & Rubber Co Ltd | Document conveying belt and manufacture thereof |
| JP4275276B2 (en) * | 1999-12-15 | 2009-06-10 | グローリー株式会社 | Paper feeding member, manufacturing method thereof, and paper feeding device |
| JP3977819B2 (en) * | 2004-03-26 | 2007-09-19 | 住友ゴム工業株式会社 | Paper sheet double feed prevention member |
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- 2009-10-19 JP JP2009240634A patent/JP5260466B2/en active Active
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1447836A (en) * | 2000-08-14 | 2003-10-08 | 株式会社可乐丽 | Polymer compsn. |
| JP2005206303A (en) * | 2004-01-21 | 2005-08-04 | Sumitomo Rubber Ind Ltd | Double-feed prevention member for paper sheet |
| CN101253043A (en) * | 2005-08-31 | 2008-08-27 | 利乐拉瓦尔集团及财务有限公司 | Packaging layered material |
| CN101395214A (en) * | 2006-03-03 | 2009-03-25 | 横滨橡胶株式会社 | Elastomer composition, method for producing same, and pneumatic tire using same |
| JP2008013295A (en) * | 2006-07-04 | 2008-01-24 | Sumitomo Rubber Ind Ltd | Member for preventing double feed of paper sheets |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5260466B2 (en) | 2013-08-14 |
| JP2011084394A (en) | 2011-04-28 |
| CN102040108B (en) | 2016-01-20 |
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