CN105383965A - Image forming apparatus and method for feeding sheet - Google Patents
Image forming apparatus and method for feeding sheet Download PDFInfo
- Publication number
- CN105383965A CN105383965A CN201510573465.0A CN201510573465A CN105383965A CN 105383965 A CN105383965 A CN 105383965A CN 201510573465 A CN201510573465 A CN 201510573465A CN 105383965 A CN105383965 A CN 105383965A
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- CN
- China
- Prior art keywords
- axle
- gear
- arm
- maintaining part
- roller
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H3/00—Separating articles from piles
- B65H3/02—Separating articles from piles using friction forces between articles and separator
- B65H3/06—Rollers or like rotary separators
- B65H3/0684—Rollers or like rotary separators on moving support, e.g. pivoting, for bringing the roller or like rotary separator into contact with the pile
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H3/00—Separating articles from piles
- B65H3/02—Separating articles from piles using friction forces between articles and separator
- B65H3/06—Rollers or like rotary separators
- B65H3/0669—Driving devices therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H5/00—Feeding articles separated from piles; Feeding articles to machines
- B65H5/06—Feeding articles separated from piles; Feeding articles to machines by rollers or balls, e.g. between rollers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2402/00—Constructional details of the handling apparatus
- B65H2402/60—Coupling, adapter or locking means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2403/00—Power transmission; Driving means
- B65H2403/50—Driving mechanisms
- B65H2403/51—Cam mechanisms
- B65H2403/512—Cam mechanisms involving radial plate cam
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2403/00—Power transmission; Driving means
- B65H2403/70—Clutches; Couplings
- B65H2403/72—Clutches, brakes, e.g. one-way clutch +F204
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2404/00—Parts for transporting or guiding the handled material
- B65H2404/10—Rollers
- B65H2404/15—Roller assembly, particular roller arrangement
- B65H2404/152—Arrangement of roller on a movable frame
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sheets, Magazines, And Separation Thereof (AREA)
Abstract
An image forming apparatus includes a driving source that rotates a first shaft around the first shaft; a feeding mechanism that includes a transmission mechanism that transmits rotation of the first shaft in a first direction to a second shaft and does not transmit rotation of the first shaft in a direction opposite the first direction to the second shaft; a roller that is fixed to the second shaft and feeds a sheet from a stack of sheets by rotating around the second shaft; and a releasing member that is fixed to the second shaft; and a holding mechanism that holds the feeding mechanism with the roller away from the stack, wherein when the transmission mechanism transmits the rotation of the first shaft to the second shaft, the releasing member releases the hold on the feeding mechanism by the holding mechanism.
Description
Technical field
Present invention relates in general to image processing system and the method for being fed to sheet material from stack of sheets.
Background technology
Conventional printer comprises for picking up from multiple sheet materials of a pile and supplying the sheet material feeding apparatus of a sheet material to print unit.This sheet material feeding apparatus is by such as making the roller contacted with sheet material rotate and supply top-sheet (such as, see special train document 1) from multiple sheet materials of described a pile to print unit.
Reference listing
Patent documentation
[patent documentation 1] Japanese Unexamined Patent Publication No 2013-234060
In this type of sheet material feeding apparatus, at the end of the feeding of sheet material, the propulsive effort reversed with making roller makes roller be retracted into the retracted position do not contacted with sheet material.At this moment, by maintaining part, roller is remained on retracted position.
But if roller oppositely rotates while maintaining part keeps roller, then roller rubs and produces noise together with maintaining part.
Summary of the invention
According to one or more embodiment of the present invention, sheet material feeding apparatus can reduce noise when the heap keeping roller away from multiple sheet material.
According to one or more embodiment of the present invention, such as, a kind of sheet material feeding apparatus of the feeding of the heap from multiple sheet material sheet material can comprise: drive source, and it makes the first axle rotate in the two directions; Feed mechanism, it comprises and is fixed to the second axle and is fed to the roller of sheet material by rotating around the second axle while contact sheet; And maintaining body, when the heap of roller away from described multiple sheet material, it keeps feed mechanism; Wherein, described feed mechanism also can comprise arm, and described arm connects described first axle and described second axle, and this arm makes the second axle rotate around the first axle by the rotation of the first axle; Transport sector, it provides and optionally performs according to the hand of rotation of the first axle from the transmission of the rotation of the first axle to the second axle and do not transmit in described arm; And release component, it is fixed to described second axle and passes through to discharge by the maintenance of maintaining body on feed mechanism around the rotation of the second axle.
According to this structure, optionally can perform according to the hand of rotation of the first axle and rotate from the first axle to the transmission of the second axle and do not transmit.Therefore, the contrarotation of roller can be prevented, and can the noise caused because roller rubs together with maintaining body be reduced.In addition, rotated around the second axle by release component, can discharge by the maintenance of maintaining body on feed mechanism.That is, when rotation is transferred to the second axle from the first axle, can discharge by the maintenance of maintaining body on feed mechanism, and the second axle can be made to rotate around the first axle close on the direction of stack of sheets.In addition, when rotation is not transferred to the second axle from the first axle, can keep by the maintenance of maintaining body on feed mechanism.Therefore, stably feed mechanism can be kept when not being fed to sheet material when the heap of roller away from described multiple sheet material.
According to one or more embodiment of the present invention, such as, maintaining body can comprise the maintaining part keeping described arm.
According to this structure, maintaining part can keep this arm.This arm can have the rattle more less than roller, and has high-freedom degree at the design aspect for maintained portion.Therefore, more stably feed mechanism can be kept than maintenance roller.
According to one or more embodiment of the present invention, such as, maintaining body also can comprise elastic portion, and maintaining part is pressed to arm by it, and release component discharges by the maintenance of maintaining part on arm by compressing maintaining part on the direction of away from arm.
According to this structure, release component can be discharged by the maintenance of maintaining part on arm by the maintaining part compressed on the direction of away from arm by elastic portion is pressed to arm.Therefore, release component can be realized with relatively simple structure.
According to one or more embodiment of the present invention, such as, the engagement section engaged with maintaining part can be formed on the tip portion of arm, and release component can discharge the engaging between engagement section with maintaining part.
According to this structure, maintaining part can engage with the engagement section formed on the tip portion of arm.Therefore, maintaining part can stably keep this arm.
According to one or more embodiment of the present invention, such as, this transport sector also can comprise multiple gear, and described multiple gear comprises the first gear rotated around the first axle and the second gear rotated around the second axle; And power-transfer clutch, it is installed between at least one gear among from described multiple gear and the S. A. of at least one gear described, and switches the transmission of described rotation between at least one gear and S. A. according to the hand of rotation of at least one gear described and do not transmit.
According to this structure, can switch according to the hand of rotation of gear the transmission that is rotated between gear and S. A. with being arranged on the power-transfer clutch between gear and S. A. and not transmit.That is, can be switched according to the hand of rotation of the first axle by power-transfer clutch and rotate from the first axle to the transmission of the second axle with do not transmit.
According to one or more embodiment of the present invention, such as, at least one gear described can be the second gear, power-transfer clutch can switch according to the hand of rotation of the second gear and rotates from the second gear to the transmission of the second axle with do not transmit, and release component can be the cam formed with the second gear integral type.
According to this structure, power-transfer clutch can be arranged between the second gear and the second axle, and release component can be embodied as the cam formed with the second gear integral type.Therefore, can component count be reduced, and the assembly operation of sheet material feeding apparatus can be made more efficient.
According to one or more embodiment of the present invention, such as, transport sector can comprise the gear rotated around the second axle, and release component can be the cam formed with gear integral type.
According to this structure, release component can be embodied as the cam that can be formed with gear integral type.Therefore, can component count be reduced, and the assembly operation of sheet material feeding apparatus can be made more efficient.
Chopping machine according to one or more embodiment of the present invention can comprise above-mentioned sheet material feeding apparatus.
According to this structure, the effect similar with the effect of above-mentioned sheet material feeding apparatus can be obtained in chopping machine.
According to one or more embodiment of the present invention, image processing system can comprise feed mechanism, and it comprises: drive source, and it makes the first axle rotate around the first axle; Transport sector, its by the rotary transfer of the first axle in a first direction to the second axle, and not by the rotary transfer of the first axle in a direction opposite the first direction to the second axle; Roller, it is fixed to the second axle, and by being fed to sheet material around the second axle rotates from stack of sheets; And release component, it is fixed to the second axle; And maintaining body, roller away from during described heap its keep feed mechanism, wherein, when transport sector by the rotary transfer of the first axle to the second axle time, release component release by the maintenance of maintaining body on feed mechanism.
According to one or more embodiment of the present invention, a kind of method can comprise makes the first axle rotate around the first axle with drive source; With transport sector only by the rotary transfer of the first axle in a first direction to the second axle; With roller by being fed to sheet material around the second axle rotates from stack of sheets; With arm, the first axle is connected with the second axle; Roller away from during described heap with maintaining part keeping arm or roller; And when described transmission by the rotary transfer of the first axle to the second axle time, discharge by the maintenance of maintaining part on arm or roller with release component.
Noise can be reduced when the heap keeping roller away from described multiple sheet material according to the image processing system of one or more embodiment of the present invention.
Accompanying drawing explanation
Fig. 1 is the transparent view of the outward appearance of the chopping machine illustrated according to one or more embodiment of the present invention.
Fig. 2 is the section drawing of the inner structure of the chopping machine illustrated according to one or more embodiment of the present invention.
Fig. 3 is the transparent view of the structure of the sheet material feeding apparatus illustrated according to one or more embodiment of the present invention.
Fig. 4 be according to one or more embodiment of the present invention from the view viewed from the top of sheet material feeding apparatus.
Fig. 5 is the section drawing of the inner structure of the feed mechanism illustrated according to one or more embodiment of the present invention.
Fig. 6 is the view of the feed mechanism illustrating the sheet material feeding apparatus according to one or more embodiment of the present invention kept by maintaining body.
Fig. 7 is the view of the operation of the maintenance being used for discharging in sheet material feeding apparatus on feed mechanism illustrated according to one or more embodiment of the present invention.
Fig. 8 is the view of the sheet material feeding apparatus feeding sheet material illustrated according to one or more embodiment of the present invention.
Fig. 9 is the section drawing of the inner structure of the feed mechanism of the one or more embodiments illustrated according to the first modified example of the present invention.
Figure 10 is the view seen above sheet material feeding apparatus of the one or more embodiments according to the first modified example of the present invention.
Figure 11 is the view seen above sheet material feeding apparatus of the one or more embodiments according to the second modified example of the present invention.
Detailed description of the invention
Describe embodiments of the invention in detail below with reference to the accompanying drawings.
Set forth many specific detail in this article more thoroughly to understand to provide of the present invention.But, for those skilled in the art by for it is evident that and can implement the present invention when there is no these specific detail.In other cases, well-known feature is not described in detail ambiguous hard to understand to avoid making this describe.
With reference to while accompanying drawing, sheet material feeding apparatus according to an embodiment of the invention will described below.In one or more embodiment of the present invention, sheet material feeding apparatus is included in chopping machine.In the drawings, x-axis is the direction of principal axis of the roller 111 of chopping machine; Y-axis is that the direction and recording medium that intersect with x-axis are by the direction of transmitting; And z-axis is the direction intersected with x-axis and y-axis.
(structure of chopping machine)
First, will the structure comprising the chopping machine 10 according to one or more embodiment of sheet material feeding apparatus 100 be described.Fig. 1 is the transparent view of the outward appearance of the chopping machine 10 illustrated according to one or more embodiment of the present invention.Fig. 2 is the section drawing of the inner structure of the chopping machine 10 illustrated according to one or more embodiment of the present invention.
In one or more embodiment of the present invention, chopping machine 10 is examples of image processing system, and can be laser printer.This image processing system can be chopping machine or the MFP (multi-function peripheral) comprising printing function.Chopping machine 10 can comprise frame 11, magazine 12, pallet 13, print unit 14 and sheet material feeding apparatus 100.
Magazine 12 provides in the bottom of frame 11, and to be accommodated in frame 11 thus can to pull out in the y-axis direction.Magazine 12 holds the heap 50 of multiple sheet material.
Sheet material is the medium scattered thinly.Such as, sheet material can be made up of paper, resin or cloth etc.
The upper surface of frame 11 provides pallet 13.Printed sheets is discharged on pallet 13.
Print unit 14 print image on sheet material.Particularly, print unit 14 comprises such as photosensitive drums, transfer roll, fixing roller etc.The toner image that photosensitive drums is formed is transferred roller transfer on the sheet material transmitted along the first route 15.Then, the toner image be transferred on sheet material is fixed roller and is fixed on sheet material.
Chopping machine 10 according to one or more embodiment of the present invention can print on the two sides of sheet material.When performing duplex printing, in one side by the sheet material that prints after being sent to pallet 13 along the first route 15, its direction of travel is also sent to magazine 12 by along the second route 16.What be transferred into magazine 12 is again fed to print unit 14 to realize duplex printing along the first route 15 by the sheet material printed in one side.
Sheet material feeding apparatus 100 is fed to sheet material from the heap 50 of described multiple sheet material.Particularly, sheet material feeding apparatus 100 is fed to a sheet material from the heap 50 of the described multiple sheet material be contained in magazine 12 to the first route 15.
(structure of sheet material feeding apparatus)
Next, the structure according to the sheet material feeding apparatus 100 of one or more embodiment will be described.Fig. 3 is the transparent view of the structure of the sheet material feeding apparatus 100 illustrated according to one or more embodiment of the present invention.Fig. 4 be according to one or more embodiment of the present invention from the view viewed from the top of sheet material feeding apparatus 100.Fig. 5 is the section drawing of the inner structure of the feed mechanism 110 illustrated according to one or more embodiment of the present invention.
As shown in Figure 3, sheet material feeding apparatus 100 can comprise drive source 101, feed mechanism 110 and maintaining body 120.In addition, sheet material feeding apparatus 100 can comprise the first axle 102, second axle 103 and torque spring 104.
Drive source 101 is such as electric notors.Drive source 101 makes the first axle 102 rotate in the two directions.Particularly, in figure 3, drive source 101 makes the first axle 102 rotate on the second direction R2 shown in the first direction R1 shown in solid arrow and dashed line arrows.Second direction R2 is the direction contrary with first direction R1.
In addition, drive source 101 makes the transfer roller (not shown) transmitting sheet material along the first route 15 rotate in the two directions.That is, drive source 101 is all used in the sheet material feeding undertaken by feed mechanism 110 with in both sheet material transmission of the first route 15.
Feed mechanism 110 is the mechanisms for being fed to a sheet material in the heap 50 from described multiple sheet material.Feed mechanism 110 can comprise roller 111, arm 112, transport sector 113 and release component 119.
Roller 111 is also referred to as pick-up roller.Roller 111 is fixed on the two ends of the second axle 103 being parallel to the first axle 102, and rotates around the second axle 103.Second axle 103 can be arranged essentially parallel to the first axle 102.
Roller 111 is fed to sheet material by rotating around the second axle 103 while contact sheet.Particularly, roller is such as by rotating this top-sheet and other sheet separation while the top-sheet in the heap 50 of the described multiple sheet material of contact and this sheet material being fed to the first route 15.
Arm 112 is components of connection first axle 102 and the second axle 103.Arm 112 makes the second axle 103 rotate around the first axle 102 by the rotation of the first axle 102.That is, arm 112 is rotated around the first axle 102 by the rotation of the first axle 102.As a result, the second axle 103 rotates around the first axle 102 with the roller 111 being fixed to the second axle 103.
" rotation " means rotate thus draw a circle around S. A..That is, " rotation " mean rotating around S. A. away from the object on the position of S. A..
When the first axle 102 rotates on first direction R1, the second axle 103 and roller 111 are rotating close on the direction of sheet material.On the contrary, when the first axle 102 rotates on second direction R2, the second axle 103 and roller 111 rotate on the direction of the heap 50 away from described multiple sheet material.
On the tip portion of arm 112, form the first engagement section 112a engaged with the maintaining part 121 of maintaining body 120.In one or more embodiment of the present invention, the first engagement section 112a is the bossing formed on the end of the second axle 103 side of arm 112.Engaged by this first engagement section 112a and maintaining part 121, regulating arm 112 is around the rotation of the first axle 102.
Transport sector 113 is provided in arm 112.Transport sector 113 optionally performs according to the hand of rotation of the first axle 102 and rotates from the transmission of the first axle 102 to the second axle 103 and do not transmit.
Particularly, transport sector 113 by the rotary transfer of the first axle 102 on first direction R1 to the second axle 103, and not by the rotary transfer of the first axle 102 on second direction R2 to the second axle 103.In other words, transport sector 113 only by from the rotary transfer on first direction R1 among the first rotation of axle 102 on first direction R1 and second direction R2 to the second axle 103.
First direction R1 is the hand of rotation for the first axle 102 making the second axle 103 and roller 111 rotate on the direction of the heap 50 close to described multiple sheet material.That is, first direction R1 is the hand of rotation for being fed to sheet material.On the contrary, second direction R2 is the hand of rotation for the first axle 102 making the second axle 103 and roller 111 rotate on the direction of the heap 50 away from described multiple sheet material.
As shown in Figure 5, transport sector 113 can comprise the first gear 114, second gear 115, the 3rd gear 116, the 4th gear 117 and power-transfer clutch 118.
First gear 114 is fixed to the first axle 102 and rotates around the first axle 102.First gear 114 engages with the second gear 115.Here, the first gear 114 is straight gears.
Second gear 115 engages with the first gear 114 and the 3rd gear 116.That is, rotation is transferred to the 3rd gear 116 from the first gear 114 by the second gear 115.Here, the second gear 115 is straight gears.
In addition, on the side surface of the second gear 115, pressure is added by unshowned elastic component (such as, coil or spring).Thus, the rotation to the second gear 115 applies load, and arm 112 rotates around the first axle 102.
3rd gear 116 engages with the second gear 115 and the 4th gear 117.That is, the 3rd gear 116 transmits from the second gear 115 to the 4th gear 117 and rotates.Here, the 3rd gear 116 is straight gears.
4th gear 117 engages with the 3rd gear 116 and rotates around the second axle 103.Here, the 4th gear 117 is straight gears.
Power-transfer clutch 118 is so-called free-wheel clutch (also referred to as unidirectional free-wheel clutchs).Power-transfer clutch 118 is installed between the 4th gear 117 and the second axle 103.
Power-transfer clutch 118 switches the transmission of the rotation between the 4th gear 117 and the second axle 103 according to the hand of rotation of the 4th gear 117 and does not transmit.That is, power-transfer clutch 118 switches according to the hand of rotation of the 4th gear 117 and rotates from the transmission of the 4th gear 117 to the second axle 103 and do not transmit.
Particularly, when the first axle 102 rotates on first direction R1, rotation is transferred to the second axle 103 from the 4th gear 117 by power-transfer clutch 118.Meanwhile, when the first axle 102 rotates on second direction R2, rotation is not transferred to the second axle 103 from the 4th gear 117 by power-transfer clutch 118.
Release component 119 is fixed to the second axle 103.Release component 119 discharges by the maintenance of maintaining body 120 on feed mechanism 110 by rotating around the second axle 103.Particularly, the first engagement section 112a of release component 119 release arm 112 and the engaging between maintaining part 121.
In one or more embodiment of the present invention, release component 119 is discharged by the maintenance of maintaining body 120 on feed mechanism 110 by contact maintaining body 120.Particularly, release component 119 is discharged by the maintenance of maintaining part 121 on arm 112 by the maintaining part 121 compressing maintaining body 120 on the direction of away from arm 112.Such as, release component 119 is by the Linear-moving converted to for compressing maintaining part 121 in rotary moving of the second axle 103.
Particularly, release component 119 can be the cam such as formed with the 4th gear 117 integral type.More specifically, release component 119 can be such as tabular cam, its from centre of gration (that is, the center of the second axle 103) to the distance of circumference be not constant.Release component 119 need not be formed with the 4th gear 117 integral type.
When the heap 50 of roller 111 away from described multiple sheet material, retaining member 120 keeps feed mechanism 110.That is, maintaining body 120 regulating arm 112 is around the rotation around the first axle 102 of the rotation of the first axle 102 and the second axle 103 and roller 111.In one or more embodiment of the present invention, maintaining body 120 can comprise maintaining part 121 and elastic portion 122.
Maintaining part 121 keeping arm 112.Maintaining part 121 is formed the second engagement section 121a engaged with the first engagement section 112a of arm 112.Here, the second engagement section 121a corresponds to the sunk part as the bossing of the first engagement section 112a.
Elastic portion 122 is such as disc springs.Maintaining part 121 is pressed to arm 112 by elastic portion 122.That is, maintaining part 121 is pressed to arm 112 by elastic portion 122, the engaging therefore not between the first engagement section 112a of release arm 112 and the second engagement section 121a of maintaining part 121.
That is, to provide maintaining part 121 relative to the retractible mode of arm 112 and it is biased towards arm 112 by elastic portion 122.In addition, maintaining part 121 compresses by being released component 119 and moving up in the side of away from arm 112.As a result, discharge by the maintenance of maintaining part 121 on arm 112.
The operation of sheet material feeding apparatus
Next, the operation according to the sheet material feeding apparatus 100 constructed as described above of one or more embodiment will be described.Fig. 6 is the view of the feed mechanism 110 illustrating the sheet material feeding apparatus 100 according to one or more embodiment of the present invention kept by maintaining body 120.Fig. 7 is the view of the operation being used for discharging the maintenance on feed mechanism 110 in sheet material feeding apparatus 100 illustrated according to one or more embodiment of the present invention.Fig. 8 illustrates the view being fed to sheet material according to the sheet material feeding apparatus 100 of one or more embodiment of the present invention.In the figure 7, arrow diagram illustrates the hand of rotation of each mechanical part when the first axle 102 rotates on first direction R1.
In figure 6, when the heap 50 of roller 111 away from the described multiple sheet material be contained in magazine 12, feed mechanism 110 is kept mechanism and keeps.This position of feed mechanism 110 is called retracted position.
When feed mechanism 110 is remained on retracted position by this way, when the first axle 102 rotates on first direction R1, as shown in (a) of Fig. 7, the 3rd gear 116 rotates in the directions of the arrows.As a result, release component 119 and roller 111 also rotate in the directions of the arrows together with the second axle 103.
Because release component 119 rotates, as shown in (b) of Fig. 7, maintaining part 121 is released component 119 and compresses, and the first engagement section 112a is separated with the second engagement section 121a.That is, maintaining part 121 and the engaging between the first engagement section 112a is discharged.
When engaging between maintaining part 121 with the first engagement section 112a is released, arm 112 rotates around the first axle 102 on first direction R1.That is, the second axle 103 and roller 111 rotate around the first axle 102 on first direction R1.As a result, feed mechanism 110 moves to the position shown in Fig. 8.This position of feed mechanism 110 is called feed position.
That is, feed mechanism 110 moves to the feed position shown in Fig. 8 from the retracted position shown in Fig. 6.In feed position, a sheet material in the heap 50 from described multiple sheet material is fed to the first route 15 by rotating while contact sheet by roller 111.
Torque spring 104 applies power in one direction, and it makes arm 112 rotate on second direction R2 to adjust the power being used for roller 111 to be pressed to sheet material.But torque spring 104 only applies force to the degree offsetting the deadweight of feed mechanism 110 in feed position.That is, use torque spring 104 individually, feed mechanism 110 can not be stably retained on retracted position.
At the end of the feeding of sheet material, the first axle 102 rotates on second direction R2.Then, arm 112 rotates around the first axle 102 on second direction R2.That is, the second axle 103 and roller 111 rotate around the first axle 102 on second direction R2.As a result, feed mechanism 110 is back to retracted position and is kept mechanism 120 and keeps.
When the first axle 102 rotates on second direction R2, rotate and be not transferred to the second axle 103 by power-transfer clutch 118 from the 4th gear 117.That is, release component 119 also non rotating.Therefore, keep by the maintenance of maintaining part 121 on arm 112.
(effect)
As mentioned above, according to the sheet material feeding apparatus 100 according to one or more embodiment of the present invention, optionally can perform according to the hand of rotation of the first axle 102 and rotate from the transmission of the first axle 102 to the second axle 103 and do not transmit.Therefore, the contrarotation of roller 111 can be prevented, and the noise caused because roller 111 rubs together with maintaining body 120 can be reduced.In addition, rotated around the second axle 103 by release component 119, can discharge by the maintenance of maintaining body 120 on feed mechanism 110.That is, when rotation is transferred to the second axle 103 from the first axle 102, can discharges by the maintenance of maintaining body 120 on feed mechanism 110, and the second axle 103 can be made to rotate around the first axle 102 on the direction close to stack of sheets 50.In addition, when rotation is not transferred to the second axle 103 from the first axle 102, can keep by the maintenance of maintaining body 120 on feed mechanism 110.Therefore, feed mechanism 110 can stably be kept when not being fed to sheet material when the heap 50 of roller 111 away from described multiple sheet material.
In addition, according to the sheet material feeding apparatus 100 according to one or more embodiment of the present invention, maintaining part 121 can keeping arm 112.Arm 112 has the rattle more less than roller 111, and has high-freedom degree at the design aspect of maintained portion.Therefore, more stably feed mechanism 110 can be kept than maintenance roller 111.
In addition, according to the sheet material feeding apparatus 100 according to one or more embodiment of the present invention, release component 119 can be discharged by the maintenance of maintaining part 121 on arm 112 by the maintaining part 121 compressed on the direction of away from arm 112 by elastic portion is pressed to arm 112.Therefore, release component 119 can be realized with relatively simple structure.
In addition, according to the sheet material feeding apparatus 100 according to one or more embodiment of the present invention, maintaining part 121 can engage with the engagement section formed on the tip portion of arm 112.Therefore, maintaining part 121 can stably keeping arm 112.
In addition, according to the sheet material feeding apparatus 100 according to one or more embodiment of the present invention, can the transmission of the rotation between change gear and S. A. be carried out with being arranged on the hand of rotation of the power-transfer clutch between gear and S. A. according to gear and not transmitting.That is, can be switched according to the hand of rotation of the first axle 102 by power-transfer clutch and rotate from the transmission of the first axle 102 to the second axle 103 and do not transmit.
In addition, according to the sheet material feeding apparatus 100 according to one or more embodiment of the present invention, between the 4th gear 117 and the second axle 103, power-transfer clutch can be installed, and release component 119 can be embodied as the cam formed with the 4th gear 117 integral type.Therefore, can component count be reduced, and the assembly operation of sheet material feeding apparatus 100 can be made more efficient.
(the first modified example)
The embodiment of the first modified example of the present invention will be described below.The embodiment of the first modified example and the difference of the above embodiment of the present invention are that power-transfer clutch is installed to the 3rd gear.Sheet material feeding apparatus according to this modified example will be described around the difference with above-described embodiment below.
Fig. 9 is the section drawing of the inner structure of the feed mechanism 210 of the one or more embodiments illustrated according to the first modified example of the present invention.Figure 10 be according to one or more embodiments of the first modified example of the present invention from the view viewed from the top of sheet material feeding apparatus.In Fig. 10, in order to the gear in arm 112 can be seen, feed mechanism 210 is shown when cutting away a part for arm 112.In addition, in figure 9 and in figure 10, mark and those the same or similar parts in Fig. 5 and Fig. 4 with identical reference number, and by suitably the descriptions thereof are omitted.
Feed mechanism 210 can comprise roller 111, arm 112, transport sector 213 and releasing mechanism 119.Transport sector 213 can comprise the first gear 114, second gear 115, the 3rd gear 216a, the 4th gear 216b, the 3rd axle 216c, the 5th gear 217 and power-transfer clutch 218.
3rd gear 216a engages with the second gear 115.3rd gear 216a rotates around the 3rd axle 216c.
Power-transfer clutch 218 is the free-wheel clutchs of the power-transfer clutch 118 be similar in above-described embodiment.Power-transfer clutch 218 is installed between the 3rd gear 216a and the 3rd axle 216c.
Power-transfer clutch 218 switches according to the hand of rotation of the 3rd gear 216a and rotates from the 3rd gear 216a to the transmission of the 3rd axle 216c with do not transmit.Particularly, when the first axle 102 rotates on first direction R1, rotation is transferred to the 3rd axle 216c from the 3rd gear 216a by power-transfer clutch 218.Meanwhile, when the first axle 102 rotates on second direction R2, rotation is not transferred to the 3rd axle 216c from the 3rd gear 216a by power-transfer clutch 218.
4th gear 216b is fixed to the 3rd axle 216c and rotates around the 3rd axle 216c.In addition, the 4th gear 216b engages with the 5th gear 217.
5th gear 217 is fixed to the second axle 103 and rotates around the second axle 103.In addition, the 5th gear 217 engages with the 4th gear 216b.
Construct transport sector 213 as described above, when the first axle 102 rotates on first direction R1, rotate and be transferred to the second axle 103 by from the first axle 102, and when the first axle rotates on second direction R2, rotate and be not transferred to the second axle 103 from the first axle 102.
As mentioned above, according to the sheet material feeding apparatus of the one or more embodiments according to the first modified example of the present invention, even if when power-transfer clutch 218 is installed between the 3rd gear 216a and the 3rd axle 216c, those the similar effects with embodiments of the invention also can be obtained.
(the second modified example)
The embodiment of the second modified example of the present invention will be described below.With the difference of above-described embodiment, this modified example is that maintaining body keeps roller.Sheet material feeding apparatus according to this modified example will be described around the difference with above-described embodiment below.
Figure 11 be according to one or more embodiments of the second modified example of the present invention from the view viewed from the top of sheet material feeding apparatus.In fig. 11, mark and those the same or similar parts in Fig. 4 with identical reference number, and by suitably the descriptions thereof are omitted.
When the heap 50 of roller 111 away from described multiple sheet material, maintaining body 320 keeps feed mechanism 110.Maintaining body 320 can comprise maintaining part 321 and elastic portion 322.
Maintaining part 321 keeps roller 111.Maintaining part 321 is formed the contact portion 321a extended towards release component 119.Release component 119 is by contacting this contact portion 321a to discharge by the maintenance of maintaining part 321 on roller 111.
Maintaining part 121 is pressed to roller 111 by elastic portion 322.That is, maintaining part 121 is pressed to roller 111 by elastic portion 322, does not therefore discharge by the maintenance of maintaining part 321 on roller 111.
As mentioned above, according to the sheet material feeding apparatus of the one or more embodiments according to the second modified example, even if when maintaining part 321 keeps roller 111, also can prevent the contrarotation of roller 111 with power-transfer clutch 118, and the noise caused because roller 111 rubs together with maintaining body 320 can be reduced.In addition, rotated around the second axle 103 by release component 119, can discharge by the maintenance of maintaining body 320 on feed mechanism 110; Therefore, feed mechanism 110 heap 50 away from described multiple sheet material together with roller 111 can stably be kept.
(another modified example)
Described above is the sheet material feeding apparatus according to one or more embodiment of the present invention and modified example, but the invention is not restricted to these embodiments or these modified example.As long as it does not depart from spirit of the present invention, what those skilled in the art can imagine is applied to the various amendment of these embodiments and modified example and is also included within the scope of the invention by the form constructed by the component combination in different embodiment and modified example.
Such as, in above-described embodiment and modified example, sheet material feeding apparatus is included in laser printer, but the present invention is not limited thereto.Such as sheet material feeding apparatus can be included in ink-jet printer.In addition, such as, sheet material feeding apparatus can be included in duplicator, facsimile apparatus or multi-purpose machine.
The invention is not restricted to the structure of the transport sector in above-described embodiment and modified example.Such as, transport sector can use pulley and belt to carry out through-put power.In addition, transport sector can use the gear (such as, crowngear, helical wheel etc.) being different from straight gear to carry out through-put power.
In above-described embodiment and modified example, form the first engagement section and the second engagement section, but the shape of the first engagement section and the second engagement section is not limited to those in above-described embodiment and modified example.Such as, the first engagement section can be sunk part, and the second engagement section can be bossing.That is, as long as the first engagement section and the engaging of the second engagement section, the shape of the first engagement section and the second engagement section can be any shape.
In addition, do not need to provide the first engagement section and the second engagement section.Such as, by the maintaining part from hold-down arm below, feed mechanism can be remained on retracted position.
Although in above-described embodiment and modified example, release component be its from centre of gration to the distance of circumference and non-constant tabular component, the shape of release component is not limited thereto.Such as, release component can be the bar member extended from the second axle on the direction intersected with direction of principal axis.In this case, discharged by the maintenance of maintaining part on feed mechanism by bar member contact maintaining part.
The placement of power-transfer clutch be not limited in above-described embodiment and modified example 1 those.Such as, power-transfer clutch can be arranged between the first axle and the first gear.
Although only describe the disclosure relative to a limited number of embodiment, benefit from of the present disclosure person of skill in the art will appreciate that and can design other embodiment various without departing from the scope of the invention.Therefore, should only be limited the scope of the invention by claims.
Reference number explanation
10 chopping machines
11 frames
12 magazines
13 pallets
14 print units
15 first routes
16 second routes
The heap of more than 50 sheet material
100 sheet material feeding apparatus
101 drive sources
102 first axles
103 second axles
104 torque springs
110,210 feed mechanisms
111 rollers
112 arms
112a first engagement section
113,213 transport sectors
114 first gears
115 second gears
116,216a the 3rd gear
117,216b the 4th gear
118,218 power-transfer clutchs
119 release components
120,320 maintaining bodies
121,321 maintaining parts
121a second engagement section
122,322 elastic portion
216c the 3rd axle
217 the 5th gears
321a contact portion.
Claims (14)
1. an image processing system, comprising:
Drive source, described drive source makes the first axle rotate around described first axle;
Feed mechanism, comprising:
Transport sector, described transport sector by the rotary transfer of described first axle in a first direction to the second axle, and not by the rotary transfer of the first axle on direction opposite to the first direction to described second axle;
Roller, described roller is fixed to described second axle, and by being fed to sheet material around described second axle rotates from stack of sheets; And
Release component, described release component is fixed to described second axle; And
Maintaining body, when described roller is away from described heap, described maintaining body keeps described feed mechanism, wherein,
When described transport sector by the rotary transfer of described first axle to described second axle time, the release of described release component is by the maintenance of described maintaining body on described feed mechanism.
2. image processing system according to claim 1, wherein, described feed mechanism comprises the arm connecting described first axle and described second axle.
3. image processing system according to claim 2, wherein, when described first axle rotates, described arm makes described second axle rotate around the first axle on the direction towards described heap.
4. image processing system according to claim 2, wherein, described maintaining body keeps described arm or described roller.
5. image processing system according to claim 2, wherein, described maintaining body comprises the maintaining part keeping described arm.
6. image processing system according to claim 5, wherein
Described maintaining body also comprises the elastic portion described maintaining part being pressed to described arm, and
Described release component on the direction away from described arm, compress described maintaining part and release keeps described arm by described maintaining part.
7. image processing system according to claim 6, wherein
The tip portion of described arm is formed the engagement section engaged with described maintaining part, and
Described release component discharges the engaging between described engagement section with described maintaining part.
8. the image processing system according to any one in claim 1-7, wherein
Described transport sector also comprises:
Multiple gear, comprises the first gear rotated around described first axle and the second gear rotated around described second axle, and
Power-transfer clutch, is arranged between at least one gear among from described multiple gear and the S. A. of at least one gear described, and
Described power-transfer clutch based at least one gear described hand of rotation and switch the transmission of described rotation between at least one gear and described S. A. and do not transmit.
9. image processing system according to claim 8, wherein
At least one gear described is described second gear,
Described power-transfer clutch switches based on the hand of rotation of the second gear and rotates from described second gear to the transmission of described second axle and do not transmit, and
Described release component is the cam formed with described second gear integral type.
10. the image processing system according to any one in claim 1-7, wherein
Described transport sector comprises the gear rotated around described second axle, and
Described release component is the cam formed with gear integral type.
11. 1 kinds of methods, comprising:
With drive source, the first axle is rotated around described first axle;
With transport sector only by the rotary transfer of the first axle in a first direction to the second axle;
With roller by rotating from stack of sheets feeding sheet material around described second axle;
With arm, the first axle is connected with the second axle;
Described roller away from during described heap with maintaining part keeping arm or described roller; And
When described transmission by the rotary transfer of the first axle to the second axle time, discharge by the maintenance of maintaining part on arm or roller with release component.
12. methods according to claim 11, wherein
Described maintenance comprises, by elastic portion, described maintaining part is pressed to described arm, and
The described direction be released in away from described arm compresses described maintaining part and discharge and keep described arm by described maintaining part.
13. methods according to claim 12, wherein
The tip portion of described arm is formed the engagement section engaged with described maintaining part, and
The described release described engagement section of release and the engaging between described maintaining part.
14. methods according to claim 12, wherein
Described transport sector also comprises:
Multiple gear, comprises described first gear rotated around the first axle and the second gear rotated around described second axle, and
Power-transfer clutch, is arranged between at least one gear among from described multiple gear and the S. A. of at least one gear described, wherein
Described transmission comprises and to switch the transmission of described rotation between at least one gear and described S. A. based on the hand of rotation of at least one gear described with power-transfer clutch and do not transmit.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014178401A JP2016052921A (en) | 2014-09-02 | 2014-09-02 | Sheet feeder and printer |
| JP2014-178401 | 2014-09-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105383965A true CN105383965A (en) | 2016-03-09 |
Family
ID=54065198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510573465.0A Pending CN105383965A (en) | 2014-09-02 | 2015-09-02 | Image forming apparatus and method for feeding sheet |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20160060051A1 (en) |
| EP (1) | EP2998251A1 (en) |
| JP (1) | JP2016052921A (en) |
| CN (1) | CN105383965A (en) |
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| US20130285308A1 (en) * | 2012-04-27 | 2013-10-31 | Seiko Epson Corporation | Recording medium feeding device and recording apparatus |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN202389978U (en) * | 2011-11-14 | 2012-08-22 | 崴强科技股份有限公司 | Paper taking mechanism |
| JP5935496B2 (en) | 2012-05-10 | 2016-06-15 | 富士ゼロックス株式会社 | Sheet conveying apparatus, image reading apparatus, and image forming apparatus |
| US9056734B2 (en) * | 2012-08-15 | 2015-06-16 | Hewlett-Packard Development Company, L.P. | Apparatus for lowering and raising a pick arm |
| JP5753827B2 (en) * | 2012-09-19 | 2015-07-22 | 京セラドキュメントソリューションズ株式会社 | Sheet conveying device, and image reading apparatus and image forming apparatus provided with the same |
-
2014
- 2014-09-02 JP JP2014178401A patent/JP2016052921A/en active Pending
-
2015
- 2015-09-02 CN CN201510573465.0A patent/CN105383965A/en active Pending
- 2015-09-02 US US14/843,367 patent/US20160060051A1/en not_active Abandoned
- 2015-09-02 EP EP15183504.8A patent/EP2998251A1/en not_active Withdrawn
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05219298A (en) * | 1992-02-05 | 1993-08-27 | T T T Kk | Automatic paper feeder for facsimile equipment |
| CN1117013A (en) * | 1993-12-09 | 1996-02-21 | 村田机械株式会社 | Document paper supplying device |
| CN1427310A (en) * | 2001-12-20 | 2003-07-02 | 富士施乐株式会社 | Paper feeder and image forming device |
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| CN101683928A (en) * | 2008-09-25 | 2010-03-31 | 株式会社理光 | Recording sheet feeder and image forming apparatus |
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| CN102530597A (en) * | 2010-12-28 | 2012-07-04 | 兄弟工业株式会社 | Image recording device |
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| US20130285308A1 (en) * | 2012-04-27 | 2013-10-31 | Seiko Epson Corporation | Recording medium feeding device and recording apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| US20160060051A1 (en) | 2016-03-03 |
| EP2998251A1 (en) | 2016-03-23 |
| JP2016052921A (en) | 2016-04-14 |
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Application publication date: 20160309 |