CN1177743C - Paper pick-up mechanism for automatic file feeder - Google Patents
Paper pick-up mechanism for automatic file feeder Download PDFInfo
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- CN1177743C CN1177743C CNB011016167A CN01101616A CN1177743C CN 1177743 C CN1177743 C CN 1177743C CN B011016167 A CNB011016167 A CN B011016167A CN 01101616 A CN01101616 A CN 01101616A CN 1177743 C CN1177743 C CN 1177743C
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- framework
- friction
- automatic file
- paper
- picking
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Abstract
The present invention relates to a paper picking mechanism for an automatic file feeder. The present invention comprises a frame, at least one picking element and at least one frictional element assembly, wherein the picking element is rotatablely arranged on the frame; the frictional element assembly can be arranged on the frame in a driven mode and is in contact with the frame; the frictional element assembly generates the torque force effect through frictional force during the rotation, so the frame swings, and the picking element automatically picks paper.
Description
Technical field
The present invention relates to a kind of mechanism for picking paper sheet, particularly relate to a kind ofly can be used for scanning, xerox, the mechanism for picking paper sheet of printing, facsimile apparatus or the like automatic file feeder.
Background technology
For many files can be imported continuously, can be equipped with in image capturing device or the type printer automatic file feeder (automatic document feede, ADF); And a kind of ADF equipment tilts to put more than 15 degree usually with feeding box, putting into feeding box when paper just can slide into by deadweight and treat paper feed device, though the design of this kind tilting has the function of automatic paper feed, whole institute takes up space bigger, is the shortcoming of this type of automatic file feeder.
Another kind of platform-type or approach platform-type automatic file feeder, such as No. the 5344134th, US Patent exposure, feeding box is put in the horizontal direction, and the paper horizontal pendulum is placed in the feeding box; Because this type of design paper can not move automatically, so must make paper paper feed automatically by mechanism for picking paper sheet in addition.
No matter be to tilt or horizontally disposed automatic file feeder, when paper feed, need to detect paper by sensor earlier, then by engine installation for example motor power interlock connecting rod mechanism or lever element again are provided, make and pick up roller (pick-up roller) and be flapped toward paper automatically, and contact to carry out automatic paper feed with paper; Import fully when all paper and to finish, sensor detects does not have paper, and motor then need reverse drivening rod mechanism or lever make and pick up roller and up lift and return to position of readiness, put into paper once more in order to the user.
Above-described automatic file feeder pick up roller, all be by motor forward and backward drivening rod mechanism or lever element, pick up roller to the lower swing or the action of upwards raising to finish; The one shortcoming is that the design of lever element or connecting rod mechanism must be accurate, and also needs the cooperation of other Detection ﹠ Controling elements and interlock circuit in addition, improves the design-calculated complexity undoubtedly; And another shortcoming is after to be automatic file feeder finish paper feed, and motor reverse again drivening rod mechanism or lever element upwards lift so that pick up roller, and so more complexity and frequency of utilization improve the occupation mode of motor.
Summary of the invention
The object of the present invention is to provide a kind of mechanism for picking paper sheet of automatic file feeder, it utilizes friction force to produce the design of twisting force, make a framework that the friction element assembly that can be driven is installed, convert the effect of torsion to and swing by friction force, and form the form of paper feed automatically with paper.
The object of the present invention is achieved like this, and a kind of mechanism for picking paper sheet of automatic file feeder promptly is provided, and includes: a framework; At least one pickup device, it is installed in rotation on the framework; And at least one friction element assembly, it can be subjected to be installed in drivingly on the framework and with framework and contact, and by friction force framework is produced twisting force when rotating, and makes the framework swing, and this pickup device is picked up paper automatically.
That is to say, in order to reach above-mentioned purpose, a friction element assembly that can be driven and rotate can be installed on a framework, and friction face is made on this friction element assembly one surface and the framework subsides are supported, in view of the above when the friction element assembly rotates, friction force between itself and framework can produce twisting force to framework, swings and make framework pass through drive-connecting shaft.
Above-mentioned friction element assembly can be a friction shoe, or is installed in the arbitrary element on the framework, for example the autoamtic paper feeding roller, pick up roller, or in order to connect and to drive the belt that picks up roller and autoamtic paper feeding roller etc.
Again, when not having paper on automatic file feeder, framework can make an end lift by the interlock mode of general lever or connecting rod, put into paper once more in order to the user.Also can then by the effect of clump weight, framework not lifted automatically when having paper, put paper again in order to the user at framework one end configuration clump weight; Maybe can utilize the elastic restoring force of elastic element that framework one end is lifted.
Removably adjust counterweight element and can dispose again on the above-mentioned clump weight, in order to the lever counterweight ratio of adjusting framework.
The advantage of apparatus of the present invention is that it converts twisting force to friction force, impels framework to do the lever swing, and the design of framework superordinate friction component, makes this mechanism meet industrial utilization; Because the design of clump weight makes framework under motorless drive, can lift in addition, thereby have the practical function that reduces the motor Occupation coefficient in the use from the command of execution one end.
Description of drawings
Below in conjunction with accompanying drawing, describe embodiments of the invention in detail, wherein:
Fig. 1 is a combination appearance figure of the present invention;
Fig. 2 is a plan sketch of the present invention;
Fig. 3 is the scheme drawing of one of friction component conversion assembly of the present invention position;
Fig. 4 is two a scheme drawing of friction component conversion assembly of the present invention position;
Fig. 5 is three a scheme drawing of friction component conversion assembly of the present invention position;
Fig. 6 is the scheme drawing of one of automatic paper feed state of the present invention;
Fig. 7 is the constitution diagram of framework of the present invention behind lower swing;
Fig. 8 is two a scheme drawing of automatic paper feed state of the present invention;
Fig. 9 is three a scheme drawing of automatic paper feed state of the present invention;
Figure 10 is the view behind the present invention the finishes automatic paper feed;
Figure 11 is that the present invention is with autoamtic paper feeding roller and framework contacting structure scheme drawing;
Figure 12 is that the present invention is with belt and framework contacting structure scheme drawing;
Figure 13 is that the present invention is to pick up roller and framework contacting structure scheme drawing;
Figure 14 is for setting the structural representation of spring on the friction shoe of the present invention;
Figure 15 is belt of the present invention and framework upper convex portion contacting structure scheme drawing;
Figure 16 is provided with the exploded drawings of adjusting counterweight element for clump weight of the present invention.
The specific embodiment
See also Fig. 1, shown in Figure 2, the present invention mainly includes a framework 11, one and is installed on that the rotating roller 21, of picking up is installed in the framework 11 and picks up the autoamtic paper feeding roller 31 of roller 21 opposed rotatable in the framework 11, and one is installed in the friction components 41 that contact with framework 11 surfaces on the framework 11.Wherein picking up roller 21, autoamtic paper feeding roller 31 can separately or merge and be called as the pickup device that automatic feed is provided.
That wherein picks up roller 21 axially is equipped with an axostylus axostyle 22, and is arranged on contiguous first end face 12 in the framework 11, and first end 23 of axostylus axostyle 22 is hubbed on first side 14 of framework 11, and second end 24 of axostylus axostyle 22 is hubbed on second side 15 of framework 11.
And autoamtic paper feeding roller 31 axially be equipped with an axostylus axostyle 32, and be arranged in the framework 11 contiguous second end face 13, and first end 33 of axostylus axostyle 32 passes first side 14 of framework 11, be articulated on first side 52 of a platform 51, and second end 34 of axostylus axostyle 32 passes second side 15 of framework 11, with second side, 53 pivot joints of platform 51; So framework 11 forms the suspention shape by axostylus axostyle 32 supports and can swing.
Picking up roller 21 and autoamtic paper feeding roller 31 again is installed in the framework 11 toward each other, and be provided with a gear 61 adjacent to second end, 24 places on the axostylus axostyle 22, and correspondence is provided with another gear 62 on the axostylus axostyle 32,61,62 of two gears, connect a belt 63, make and pick up roller 21 and autoamtic paper feeding roller 31 constant speed rotation synchronously.
See also shown in Figure 3ly, friction element assembly 41 can be installed on second end 24 of the axostylus axostyle 22 that picks up roller 21, and an end is made contact surface 42 and pasted with second side 15 of framework 11 and support.
Again, the group of friction element assembly 41 is established the position, except above-mentioned be installed on the axostylus axostyle 22 that picks up roller 21 with first side 14 of framework 11 or second side 15 paste support, see also shown in Figure 4, friction element assembly 41 also can be installed on the axostylus axostyle 32 of autoamtic paper feeding roller 31, and an end is made contact surface 42 and supported with first side, 14 subsides of framework 11.Or as shown in Figure 5, friction element assembly 41 is installed on the axostylus axostyle 32 of autoamtic paper feeding roller 31, an end is made contact surface 42 and is supported with second side, 15 subsides of framework 11.
See also Fig. 1, shown in Figure 2, on second end face 13 of framework 11, be provided with clump weight 71, and be equipped with a clutch block 72 on second end 34 of axostylus axostyle 32, and protrude a flange 73 on the clutch block 72; A sheathed again driver element 74 on second end 34 of other axostylus axostyle 32, this driver element 74 axially on be extended with a flange 75, make the flange 75 of flange 73 and driver element 74 on the clutch block 72 can be corresponding mutually in view of the above, and can abut against or separate, form one-way clutch.These driver element 74 1 sides connect another driver element 76 in addition, and this driver element 76 can be to driver element 74 transmission power.
See also Fig. 6, shown in Figure 7, when driver element 76 reaches the driver element 74 that is meshed with power, along with the rotation of driver element 74, its axially set flange 75 can be abutted against with the flange 73 on the clutch block 72, drive axostylus axostyle 32 with this and rotate; Axostylus axostyle 32 in the rotation is except making autoamtic paper feeding roller 31 rotates, and the transmission by belt 63 can make axostylus axostyle 22 rotate with picking up roller 21, and picks up roller 21 and make synchronous constant speed with autoamtic paper feeding roller 31 and rotate.
When axostylus axostyle 22 rotates, the friction element assembly 41 that is installed on axostylus axostyle first end 23 also can rotate synchronously, this moment since the friction face 42 of friction element assembly 41 contact with first side 14 of framework 11, so the friction force of 11 of friction element assembly 41 and frameworks just can change into twisting force to framework 11.And behind the twisting force that framework 11 is subjected to being transformed by friction force, can cooperate the axial axostylus axostyle 32 of autoamtic paper feeding roller 31, present the lever swing, first end face 12 that makes framework 11 by the state that lifts originally to lower swing.
After so the user is put into paper 77 between platform 51 and the framework 11, default detection (detecting) device (not shown) is sensed paper 77, can convert the mode of torsion by above-mentioned friction force to, make framework 11, and make and pick up roller 21 and contact with paper 77 to lower swing.
See also Fig. 7, shown in Figure 8, be provided with one at second end face, 13 rears of framework 11 and feed paper roller 78, the rotating speed that should feed paper roller 78 is higher than the rotating speed of driver element 76, therefore in the paper 77 paper feed processes, in case contact the quick pulling that promptly is subjected to feeding paper roller 78 with hello paper roller 78, the part that this moment, paper 77 contacted with autoamtic paper feeding roller 31, just can impel autoamtic paper feeding roller 31 and axostylus axostyle 32 to improve rotating speed, and the rotational angle of the axostylus axostyle 32 of raising rotating speed makes the flange 75 on the flange 73 leading driver elemenies 74 on the clutch block 72 form the separation shapes greater than the rotational angle of driver element 74.
Since autoamtic paper feeding roller 31 with pick up roller 21 and continue to rotate, therefore being installed in the friction element assembly 41 that contacts with framework 11 on the axostylus axostyle 22 still continues framework 11 is produced twisting force, make and pick up roller 21 and contact with paper 77, reason clutch block flange 73 does not separate with driver element flange 75, and makes the framework 11 can't the bottom.
See also Fig. 9, shown in Figure 10, when detector detects last paper 77 by behind the autoamtic paper feeding roller 31, driver element 76 promptly stops imput power, and another driver element 74 also stops operating thereupon, flange 73 on the clutch block 72 and the flange 75 on the driver element 74 are still at a distance of an intersegmental distance at this moment, and framework 11 is subjected to the effect of the clump weight 71 that second end face 13 set, mating flanges 73 again, 75 spacing, can make 13 swings of second end face downwards, so first end face 12 of framework 11 upwards lifts, and is beneficial to the user and once more paper 77 is inserted framework 11 belows.
The present invention only utilizes the used friction element assembly 41 of structure that produces friction force and convert twisting force on framework 11 to be not limited to utilize friction shoe 43, friction element assembly 41 can be that other are installed in the framework 11 in other embodiments of the invention, in order to produce other members of automatic feed, see also shown in Figure 11, an end of autoamtic paper feeding roller 31 can be made friction face 81 among this embodiment, and the friction face 81 and first side, 14 subsides of framework 11 are supported; In view of the above, when autoamtic paper feeding roller 31 rotated, friction face 81 just can produce twisting force to framework 11, makes framework 11 carry out automatic paper feed to lower swing.
See also shown in Figure 12, can will make friction face 82 with belt 63 1 sides of picking up roller axostylus axostyle 22 in order to connect autoamtic paper feeding roller axostylus axostyle 32, and friction face 82 is pasted with second side 15 of framework 11 to be supported, when belt 63 rotates, friction face 82 can produce twisting force on second side 15, make framework 11 to lower swing in order to carrying out automatic paper feed.
See also shown in Figure 13ly again, can will make friction face 84, and friction face 84 is pasted with first side 14 of framework 11 support in order to the end that picks up roller 21 that the paper feed effect is provided; So, when picking up roller 21 rotations, can make friction force convert twisting force to, first end face 12 that impels framework 11 is to the bottom, in order to carrying out automatic paper feed.Moreover, it will be appreciated that, pick up roller 21 and also may exist with the profile of similar soft gear, in the case, also can reach the effect of picking up paper.
See also shown in Figure 14, strength is supported in the subsides that first side of the contact surface 42 of friction shoe 43 and framework 11 is 14, can be acted on the friction shoe 43 by a spring 85 that is arranged at the adjustable tightness of axostylus axostyle 22 first ends 23 provides, for example an end of spring 85 set one can displacement with rotation adjustment piece 86, so that adjust the positive force that friction shoe 43 acts on first side 14 when shipment, the torsion that friction force is produced is enough to make framework 11 swings by this.
Rotate in the structure that drives framework 11 swings by belt 63 again, the friction face 82 that belt 63 1 sides form is not necessarily wanted all to contact with second side 15 of framework 11, its another embodiment state, see also shown in Figure 15ly, be convexly equipped with a protuberance 87 in the 15 internal face positions, second side of framework 11; When belt 63 rotated, friction face 82 contacts the friction force that is produced with protuberance 87 can impel framework 11 swings.
Except aforementioned with friction shoe 63, pick up roller 21, autoamtic paper feeding roller 31 and belt 63 and contact with framework 11, thereby friction force is converted to outside the twisting force by each element rotation, another kind of feasible mode is to make gear 61 or gear 62 keep the friction law (not shown) with second side 15 of framework 11, so also can reach the effect of swing frame 11.
See also shown in Figure 16 again, on the set clump weight 71 of second end face 13 of framework 11, can further dispose some counterweight elements 83 of removably adjusting, when adjusting framework 11 and make lever swing with this, required counterweight ratio is so that the more smooth and easy sensitivity of the swing of framework 11.
Another kind of feasible mode is to utilize the spring (not shown) to replace clump weight 71 or adjustment counterweight element 83, so that framework 11 automatically restores to position of readiness, sends into the paper that the next group desire is handled for the user.For example on framework 11, do not influence position and 51 mounting spring of platform of paper feed, can make framework 11 when not being subjected to twisting force, return position of readiness from movable pendulum.
The present invention converts twisting force to friction force, impels framework 11 to do lever swing, technological means not seen before, and the design of framework 11 superordinate friction components 41, not only structure innovation, simplify, meet industrial utilization especially; The present invention can make framework 11 under motorless drive by the design of clump weight 71 in addition, can lift from the command of execution one end, makes the present invention have the practical function that reduces the motor Occupation coefficient in the use.
The above only is preferred embodiment of the present invention, and all equalizations of doing according to claim of the present invention change and modify, and all belong to patent covering scope of the present invention.
Claims (9)
1. the mechanism for picking paper sheet of an automatic file feeder includes:
One framework;
At least one pickup device, it is installed in rotation on the framework; And
At least one friction element assembly, it can be subjected to be installed in drivingly on the framework and with framework and contact, and by friction force framework is produced twisting force when rotating, and makes the framework swing, and this pickup device is picked up paper automatically.
2. the mechanism for picking paper sheet of automatic file feeder as claimed in claim 1, wherein the friction element assembly is a friction shoe, itself and this pickup device interlock, an end is made friction face and is contacted with the framework surface.
3. the mechanism for picking paper sheet of automatic file feeder as claimed in claim 1, wherein friction element assembly and this pickup device are integrally formed, and this pickup device one end is made friction face and framework and pasted and support.
4. the mechanism for picking paper sheet of automatic file feeder as claimed in claim 1, wherein the friction element assembly is a kind of is installed on the framework and in order to connecting and to drive the belt of this pickup device, and belt one side is made friction face and supported with the framework subsides.
5. the mechanism for picking paper sheet of automatic file feeder as claimed in claim 1, wherein this friction element assembly can cooperate one can adjust the spring of tightness to adjust the positive force between this friction element assembly and this framework.
6. the mechanism for picking paper sheet of automatic file feeder as claimed in claim 4, its middle frame epirelief is provided with protuberance and contacts with the friction face of belt.
7. the mechanism for picking paper sheet of automatic file feeder as claimed in claim 1, its middle frame one end is provided with clump weight, and framework must be subjected to the counterweight effect and put back position of readiness when making no paper.
8. the mechanism for picking paper sheet of automatic file feeder as claimed in claim 8, wherein clump weight is provided with some counterweight elements of removably adjusting, in order to adjusting the required counterweight ratio of framework lever motion.
9. the mechanism for picking paper sheet of automatic file feeder as claimed in claim 1 can set a spring on its middle frame, so that framework must not be subjected to the application force of spring and put back position of readiness when having paper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011016167A CN1177743C (en) | 2001-01-12 | 2001-01-12 | Paper pick-up mechanism for automatic file feeder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011016167A CN1177743C (en) | 2001-01-12 | 2001-01-12 | Paper pick-up mechanism for automatic file feeder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1364726A CN1364726A (en) | 2002-08-21 |
| CN1177743C true CN1177743C (en) | 2004-12-01 |
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ID=4652164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011016167A Expired - Lifetime CN1177743C (en) | 2001-01-12 | 2001-01-12 | Paper pick-up mechanism for automatic file feeder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1177743C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6060885B2 (en) * | 2013-12-11 | 2017-01-18 | ブラザー工業株式会社 | Feeding device and image recording device |
| JP6176173B2 (en) | 2014-03-31 | 2017-08-09 | ブラザー工業株式会社 | Feeding device and image recording device |
| CN105668274B (en) * | 2014-10-14 | 2020-05-26 | 虹光精密工业股份有限公司 | Paper separating device |
-
2001
- 2001-01-12 CN CNB011016167A patent/CN1177743C/en not_active Expired - Lifetime
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| Publication number | Publication date |
|---|---|
| CN1364726A (en) | 2002-08-21 |
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Granted publication date: 20041201 |
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