CN1209613A - Driving mechanism of optical scanner and assembling method therefor - Google Patents
Driving mechanism of optical scanner and assembling method therefor Download PDFInfo
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- CN1209613A CN1209613A CN 97111902 CN97111902A CN1209613A CN 1209613 A CN1209613 A CN 1209613A CN 97111902 CN97111902 CN 97111902 CN 97111902 A CN97111902 A CN 97111902A CN 1209613 A CN1209613 A CN 1209613A
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Abstract
The new assembling method designed for reducing optical path tolerance between sensor and document is aimed at making the optical path tolerance only just limited within the transparent glass layer space for holding document. Its assembling method is characterized by that the upper cover of the scanner is placed upside down, the transparent glass layer is placed in the upper cover, then the sensor is matched with the driving mechanism, fixed in the upper cover, then the scanner can be tested, when the test is normal, the base seat can be placed on the inverted upper cover, and combined together,then the combined structure is inverted again,so that the complete assembling process of the scanner can be implemented.
Description
The present invention is a kind of new assemble method that utilizes contact-type image inductor (Contact Image Sensor:CIS) for the platform-type optical scanner of scanister, because the contact-type image inductor has the shallow characteristic of the depth of field, think the light path tolerance that reduces scanner optics mechanical system, so it only is the thickness of the transparent glass layer between scanister and scanned document that the light path tolerance is eased down to, so that produce light, thin, little, skilful, and easily assembling, the scanner structure safeguarded.
Tradition takes electric coupling device (Charge-CoupledDevice:CCD) to be the platform-type scanner of optical scanner, because its optical-mechanical system is very complicated, therefore its bulk shape structure is huge, need account for bigger space, its weight also increases relatively simultaneously, reason since electric coupling device when receiving image signal, be to utilize optical lens that the scaled back of the image length of scanning document is throwed on it, for keeping certain scale down, whole optical path is necessary for certain value, can't shorten again, simplify, add whole optics mechanical system many catoptrons of still needing, so, the volume of this optical-mechanical system can't reduce again, thus, whole optics mechanical system is under so heavy weight limits, in case when carrying out displacement scanning, it is just quite big that tool promotes required power, for this reason, traditional scanner, major part is after the base horizontal, begin gear train with scanner, the control interface, each spare part such as optical-mechanical system is combined in it, treat again transparent glass layer and loam cake to be covered thereon after the aforementioned combination, and flip combined, because being still, the scanister major part of its optical-mechanical system takes electric coupling device (Charge-Coupled Device:CCD), because its optical-mechanical system complex, therefore its scanning light path tolerance is just quite big, adding it must whole after the scanner assembling finishes, just carry out test jobs, therefore, when test is undesired, after must whole scanner taking maintenance apart, re-assembly again, test, when expending very much time that light path adjusts and maintenance, dismounting, the time of assembling, so, cause the inventor and redesign the research of scanner assembling mode, and then develop a kind of research that reduces the new assembling mode of light path tolerance, and then develop a kind of new assemble method and mechanism that reduces the light path tolerance.
Shortcoming at existing method and structure, fundamental purpose of the present invention is for reducing the light path tolerance that scanister and scanned document are asked, thereby the platform-type optical scanner assemble method that makes new advances of exploitation, it mainly is the transparent glass layer with scanner, gear train, the control interface, after spare parts such as optical-mechanical system are combined in inverted loam cake, carry out test jobs immediately, to be tested errorless after, just lower cover can be assembled in and cover, continuous aforesaid structure the inversion and upward flip of assembling, just finish the package program of whole scanner, not only can cancel the program of adjusting the light path tolerance, more can conveniently test when bad, dismounting, the job procedure of maintenance is saved really and is assembled man-hour, cost.
Another object of the present invention is the scanner that utilizes the contact-type image inductor to receive as image signal, for making contact-type image inductor and the file that is scanned keep to obtain the focusing position of clear scanning effect, contact-type image inductor and transparent glass layer will be maintained fixed apart from displacement scan.
Another purpose of the present invention is a characteristic of utilizing contact-type image inductor light path short, the light path of transparent glass layer and contact-type image inductor is adjusted mode, the interior elastic body of the bearing that utilization provides the contact-type image inductor to be provided with, and be attached at the wearing piece of contact-type image inductor two ora terminalis tops, or roller is set in contact-type image inductor two ora terminalis sides, utilize wearing piece to contact transparent glass layer or roller, reach the effect that is maintained fixed apart from displacement scanning along the walking of transparent glass layer below.
Further specify the present invention below in conjunction with accompanying drawing.
Fig. 1 is a stereographic map of the present invention.
Fig. 2, Fig. 2 a are spare part assembling outside drawing of the present invention.
Fig. 3 is the side cutaway view of Fig. 2.
Fig. 4 is the top plan view of Fig. 2.
Fig. 5 is another embodiment of the present invention figure.
Fig. 6 analyses and observe embodiment for first side of light path adjustment of the present invention.
Fig. 7 is that embodiment is analysed and observe in the another side of light path adjustment of the present invention.
The figure number explanation:
10 scanners, 11 flips, 12 loam cakes, 13 transparent glass layers, 14 optical-mechanical systems
141 contact-type image inductors, 15 bases, 16 gear trains, 161 control interfaces
163 20 bearings of 162 motors, 30 elastic bodys, 32 shell fragments 40,40 ' wearing piece
50,50 ' roller
Consulting Fig. 1 is stereographic map of the present invention, and Fig. 2, Fig. 2 a are the outside drawing of its assembling, and Fig. 3 then is the side cutaway view of Fig. 2, and Fig. 4 is the top plan view of Fig. 2.The present invention adopts contact-type image inductor (Contact Image Sensor:CIS) to be scanister, it has the shallow characteristic of the depth of field, therefore, optical path length between scanister and scanned document must shorten, for making the light path tolerance between scanister and scanned document, only be the thickness between the transparent glass layer of the two, special research and development one new assemble method is its characteristics to reach to need not to adjust the scanning light path when assembling and reduce the repair demolition operation.
Shown in figure, platform-type optical scanner of the present invention consists predominantly of a flip 11, one loam cake 12, one transparent glass layer 13, one optical-mechanical system 14, one base 15 and a gear train 16 constitute, wherein, optical scanner in this optical-mechanical system 14 is to take contact-type image inductor (CIS) 141 to be the image signal receiving trap, this contact-type image inductor 141 is because of the shallow cause of its depth of field, so it can not take the scanner structure of electric coupling device, and need accurately adjust optical path length, can make the file that is scanned in its focusing range, test gained factually, this optical path length need be equivalent to press close to, be contacted with transparent glass layer 13 belows, so, for making contact-type image inductor 141 be maintained fixed in-plant displacement, it need design a light path mechanism in addition, to reach clear scanning effect, this light path mechanism mainly comprises a bearing 20, one elastic body 30, this bearing 20 is located on the axle 163 of gear train 16, and is controlled by the control interface 16l of gear train 16, motor 162 drives displacement.
Secondly, contact-type image inductor 141 along transparent glass layer 13 bottom displacements, it is arranged at aforementionedly has in elastic body 30 bearing 20 thereon, it is smooth in transparent glass layer 13 bottoms and keep equidistant displacement for contact-type image inductor 141 is able to, elastic body 30 in the bearing 20 stays on the bottom of contact-type image inductor 141, drives displacement and the adjustment of elasticity spacing with gear train 16; Moreover, for keeping in touch the 141 steady displacements of formula image sensor, above two ora terminalis of contact-type image inductor 141, the wearing piece 40,40 ' that the coefficient of friction that is sticked is very little, this wearing piece 40,40 ' is to press close to, contact on the non-scanning area of transparent glass layer 13, sheet 40,40 ' long-term and transparent glass layer 13 frictions and generation scratch avoid friction, influence scanning quality, utilize elastic body 30 and two wearing pieces 40,40 ' shore and contact, make contact-type image inductor 141 in scanner 10, reach preferable light path and adjust effect.
Moreover the scanister in this optical-mechanical system 14 is to take contact-type image inductor 141, and its number of assembling steps is:
Step 1: earlier the loam cake 12 of scanner is inverted, loam cake 12 end faces are kept flat down;
Step 2: again transparent glass layer 13 is placed in the aforementioned loam cake 12, and the scanning area breach of loam cake 12 end faces is sealed;
Step 3: behind the continuous scanister and elastic body 30 combinations with optical-mechanical system 14, be arranged in the bearing 20, at this moment, the wearing piece 40,40 ' that two coefficients of friction are very little also is installed in the end face place, last two ends of scanister again;
Step 4: with the bearing 20 of the appropriate scanister of combinations thereof, with gear train 16 the axle 163 fits after, be fixed in the loam cake 12;
Step 5: again the motor 162 of gear train 16 and the spare part that cooperates are installed in the loam cake 12, and interlock with bearing 20 and to combine;
Step 6: the control interface 161 that will have circuit such as power supply, signal processing in addition concurrently is assembled in loam cake 12 1 sides, and is fastened on the loam cake 12;
Step 7: aforementioned being assembled to after this, this does not all assemble the scanner of finishing as yet, can carry out the scan function test immediately, in case test is normal, just base 15 is combined on the loam cake 12, again with its inversion, the end face that makes loam cake 12 up, after then flip 11 being combined in loam cake 12, just finish the package program of whole scanner, can pack shipment;
Step 8: if scan function is tested when undesired, carry out the maintenance activity program at once, return step 7 and carry out.
See also shown in Figure 5, it is another preferred embodiment of the present invention, promptly change to second wheel 50,50 ' in the set wearing piece 40,40 ' in the two ora terminalis top of aforesaid contact-type image inductor 141, this second wheel 50,50 ' is to be located at 141 liang of ora terminalis sides of contact-type image inductor, and, can reach the purpose of adjusting light path equally along the walking of transparent glass layer 13 bottoms.
Again referring to Figure 6 and Figure 7, the Application Example of light path mechanism elastic body 30, be that elastic body 30 can be two spiral springs, be divided into 141 liang of ora terminalis bottoms of contact-type image inductor, it is shored the bottom surface of close transparent glass layer 13, in addition, the shell fragment 32 that this elastic body 30 can also integrated punching forms replaces, the support chip that utilizes the two ends of shell fragment 32 to be washed into is shored contact transparent glass layer 13 bottoms with contact-type image inductor 141, can make contact-type image inductor 141 and transparent glass layer 13, be maintained fixed spacing, and can make scanned document in the focusing range of contact-type image inductor 141, obtain clear scanning effect.
In sum, can understand that advantage of the present invention is:
1, simplify the package assembly of scanner, the cancellation tradition is to the set-up procedure of scanning light path.
2, carry out scan function test ahead of time, exempt after tradition must overall package finishes, the operation that can test, in case when finding problem is arranged, must expend the field-strip of quite growing, treat maintenance process after, the drawback of still needing and re-assemblying.
Claims (8)
1, a kind of gear train assemble method of optical scanner, this scanner are made of a flip, a loam cake, a transparent glass layer, a base, a gear train and an optical-mechanical system, it is characterized in that assemble method is:
Step 1: earlier the loam cake of scanner is inverted;
Step 2: transparent glass layer is placed in the aforementioned loam cake again;
Step 3: behind the continuous scanister and elastic body combination with the optical-mechanical system, be arranged in the bearing, the wearing piece that two coefficients of friction are very little also is installed in the end face place, last two ends of scanister again;
Step 4: said structure is arranged in the bearing, and the axle sleeve with gear train closes, is fixed in the loam cake again;
Step 5: the motor of gear train and the spare part of cooperation are installed in the loam cake, and interlocking with bearing combines;
Step 6: the control interface that will have in addition circuit such as power supply, signal processing concurrently is assembled in loam cake one side, and is fastened in and covers;
Step 7: aforementioned being assembled to after this, this does not all assemble the scanner of finishing as yet, can carry out the scan function test immediately, when test is normal, just base is combined in to cover, again with its inversion, then flip is combined in loam cake, finishes the package program of scanner;
Step 8: aforementioned scan function is tested when undesired, carries out the maintenance activity program at once, returns step 7 and carries out.
2, the gear train assemble method of optical scanner as claimed in claim 1 is characterized in that this scanister takes to have the contact-type image inductor of the shallow characteristic of the depth of field.
3; a kind of gear train of optical scanner; this scanner mainly is by a flip; one loam cake; one transparent glass layer; one base; one gear train and an optical-mechanical system constitute; it is characterized in that; optical scanner in the optical facilities system is that to take the contact-type image inductor be the image signal receiving trap; this contact-type image inductor is pressed close to; be contacted with the transparent glass layer below; and along the displacement of transparent glass layer bottom protection fixed range; thereby make the contact-type image inductor design in a light path mechanism; keep in touch on formula image sensor and the transparent glass layer scanned document in the focusing scope in so that obtain clear scanning effect.
4, the gear train of optical scanner as claimed in claim 3, it is characterized in that this light path mechanism is located in the bearing by an elastic body, this bearing is to be arranged on the axle of gear train, and the motor that is controlled by gear train drives, and the contact-type image inductor is arranged on the bearing, and utilize elastic body make the contact-type image inductor shored, smooth in transparent glass layer bottom and keep equidistant displacement.
5, the gear train of optical scanner as claimed in claim 4, it is characterized in that for keeping being arranged at the steady displacement of contact-type image inductor on the light path adjusting mechanism bearing, above two ora terminalis of contact-type image inductor, the wearing piece that the coefficient of friction that is sticked is very little, and make wearing piece press close to, contact on the non-scanning area of transparent glass layer, by the shoring, contact of shell fragment, two wearing pieces, make the contact-type image inductor in platform-type scanner, reach preferable light path adjustment.
6, the gear train of optical scanner as claimed in claim 4 is characterized in that being arranged at the contact-type image inductor on the bearing, and its two ora terminalis side can be established roller in addition and replace wearing piece, and this second wheel is to walk displacement along the transparent glass layer bottom line.
7, the gear train of optical scanner as claimed in claim 4 is characterized in that this elastic body can be made as two spiral springs, and this two spring is arranged at contact-type image inductor two ora terminalis bottom.
8, the gear train of optical scanner as claimed in claim 4 is characterized in that this elastic body can be made as the shell fragment that integrated punching is shaped, and the two ends of this shell fragment strike out support chip, contact-type image inductor two ora terminalis bottom can be shored.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97111902A CN1082691C (en) | 1997-06-25 | 1997-06-25 | Driving mechanism of optical scanner and assembling method therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97111902A CN1082691C (en) | 1997-06-25 | 1997-06-25 | Driving mechanism of optical scanner and assembling method therefor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1209613A true CN1209613A (en) | 1999-03-03 |
| CN1082691C CN1082691C (en) | 2002-04-10 |
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ID=5171939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97111902A Expired - Fee Related CN1082691C (en) | 1997-06-25 | 1997-06-25 | Driving mechanism of optical scanner and assembling method therefor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1082691C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1294518C (en) * | 1999-10-13 | 2007-01-10 | 东友科技股份有限公司 | Scanner |
| CN100389431C (en) * | 2003-03-24 | 2008-05-21 | 虹光精密工业〔苏州〕有限公司 | Scanning instrument capable of regulating scanning unit position |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5424610B2 (en) * | 1973-06-26 | 1979-08-22 | ||
| JPH043279A (en) * | 1990-04-20 | 1992-01-08 | Canon Inc | Image reader |
| US5717503A (en) * | 1996-03-26 | 1998-02-10 | First International Computers, Inc. | Actuating mechanism for optical scanner |
-
1997
- 1997-06-25 CN CN97111902A patent/CN1082691C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1294518C (en) * | 1999-10-13 | 2007-01-10 | 东友科技股份有限公司 | Scanner |
| CN100389431C (en) * | 2003-03-24 | 2008-05-21 | 虹光精密工业〔苏州〕有限公司 | Scanning instrument capable of regulating scanning unit position |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1082691C (en) | 2002-04-10 |
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Owner name: WEIQIANG TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: XINHONG SCIENCE AND TECHNOLOGY CO., LTD. Effective date: 20010707 |
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Effective date of registration: 20010707 Address after: No. 596 lane two, LITE-ON Road, Xinfeng Township, Hsinchu County, Taiwan Province, China 11 Applicant after: Foxlink Image Technology Co., Ltd. Address before: -6 building, No. 5, Lane 607, 1 Lane, Guangfu Road, 30, Taiwan, Hsinchu Applicant before: Xinhong Science and Technology Co., Ltd. |
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