CN2305691Y - Rolling transmission type optical scanning device - Google Patents
Rolling transmission type optical scanning device Download PDFInfo
- Publication number
- CN2305691Y CN2305691Y CN 97224087 CN97224087U CN2305691Y CN 2305691 Y CN2305691 Y CN 2305691Y CN 97224087 CN97224087 CN 97224087 CN 97224087 U CN97224087 U CN 97224087U CN 2305691 Y CN2305691 Y CN 2305691Y
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- membrane module
- cis
- back shaft
- rolling element
- paired
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- Expired - Fee Related
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- 238000005096 rolling process Methods 0.000 title claims abstract description 30
- 230000003287 optical effect Effects 0.000 title claims abstract description 7
- 230000005540 biological transmission Effects 0.000 title 1
- 239000012528 membrane Substances 0.000 claims description 48
- 239000011324 bead Substances 0.000 claims description 2
- 238000006073 displacement reaction Methods 0.000 claims 2
- 230000000694 effects Effects 0.000 claims 2
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 4
- 240000002853 Nelumbo nucifera Species 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- CNQCVBJFEGMYDW-UHFFFAOYSA-N lawrencium atom Chemical compound [Lr] CNQCVBJFEGMYDW-UHFFFAOYSA-N 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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Abstract
An optical scanning device is prepared as setting rolling element at two sides of module of contact type sensor to make module slide tightly to transparent file platform by means of rolling element and matching elastic element to absorb vibration or deformation error of machine table.
Description
The utility model relates to a kind of platform-type optical scanner, be particularly related to a kind of optical scanner that has rolling element and use the contact-type sensor, this contact-type sensor membrane module contacts with transparent file platform holding point, and file is remained in the field depth of this membrane module.
The electric charge lotus root closes sensor (CCD) and contact-type sensor (CIS) is common image read-out in the scanner.Platform-type scanner uses the electric charge lotus root to close sensor mostly, because its depth of field is long, so the picture quality of scanning is good.And the depth of field of contact-type sensor (CIS) is short, and resolution is not high, so generally be applied to facsimile recorder or hand held scanner.Yet the shortcoming of using the electric charge lotus root to close sensor is that the light path of CCD and lens set institute palpus is longer, so the volume of scanner is difficult to dwindle.Though the resolution of CIS contact-type sensor closes sensor not as the electric charge lotus root, can be applicable to the platform-type scanner of low order.And CIS contact-type sensor is the height membrane moduleization, and is so volume is little, easy to assembly.The platform-type scanner of highly about 70cm is contracted to about 30cm height to use CIS contact-type sensor not only can make originally, also can save manufacturing cost, simplifies the inner structure of scanner.
Yet not using the CIS membrane module at present as yet is to overcome the short restriction of the CIS membrane module depth of field in the main cause of platform-type scanner.Because the depth of field of CIS membrane module has only 0.1mm, in case manufacturing tolerance is excessive, or the deformed element of board, file is left in its field depth, and influence the quality of image.Therefore, file is remained in the field depth of CIS membrane module when scanning, the dealer constantly makes great efforts the research improvement for a long time and seeks redress.
The purpose of this utility model is to provide a kind of platform-type scanner with rolling element, slides so that the CIS membrane module is close to the transparent file platform smooth-goingly, with the change of the minimizing CIS membrane module depth of field, and makes the quality of scan image keep stable.
It is short that another purpose of the utility model is to solve the CIS membrane module depth of field, the problem that scan image is distorted easily, a kind of rolling element is proposed, making CIS membrane module mat rolling element be close to the transparent file platform slides, keep the distance between file and the CIS membrane module, and make moving of this membrane module more smooth-going.
The purpose of this utility model is achieved in that promptly provides a kind of rolling driving type optical scanner, has a transparent file platform, is positioned at the board top and places file; It also comprises: a CIS membrane module, and be located at described transparent file platform below, and read the image of file; One rolling element group is installed in the both sides of described CIS membrane module, and is close to the surface below of described transparent file platform, drives described CIS membrane module and slides in the surface below of described transparent file platform; One conduction device is installed in the outside of described rolling element group, and to the described CIS module of upper support group; And a drive unit, connect described CIS membrane module, make it to shift to the other end, and read document image by an end of file.
The advantage of the utility model device is that its platform-type scanner structure is simple, and volume is little, scans smooth-goingly, and reliable in quality reduces assembly cost, is easy to carry.
Below in conjunction with accompanying drawing, embodiment of the present utility model is described, wherein:
Fig. 1 is the cut-away view of the utility model one embodiment;
Fig. 2 A is the utility model the foregoing description inner structure top view;
Fig. 2 B is the utility model the foregoing description inner structure side view;
Fig. 3 is another embodiment inner structure side view of the utility model.
CIS membrane module of the present utility model can be close to the transparent file platform and move smooth-goingly, to keep the stable of the depth of field.Based on this purpose, the utility model uses rolling element so that only a bit contact between CIS membrane module and the transparent file platform, and the cooperation flexible member, vibrates or the board distortion inaccuracy with absorption.The structure upward view of the utility model most preferred embodiment sees also Fig. 1, and the utility model device comprises: transparent file platform 101, and CIS membrane module 102, rolling element group 103, the conduction device (not shown), and drive unit 104 etc.Transparent file platform 101 is put file, is generally glass.CIS membrane module 102 is the CIS contact sensor of a membrane moduleization, in order to read the image document of file, can be electric signal with the image transitions of file.
Rolling element 103 is assembled in the both sides of CIS membrane module 102 respectively, and is supported by the conduction device (not shown), and the surface below that makes it to be close to transparent file platform 101 moves.Drive unit 104 comprises a motor 1041, gear set 1042, roller set 1043,1044 and an annular actuated element 1045.Motor 1041, gear set 1042 is connected mutually with roller 1043.Annular actuated element 1045 is a loop-type belt or a steel cable, is sleeved on the roller set 1043,1044.When motor 1041 started, drive gear set 1042 was rotated, and drives roller 1043 simultaneously, and annular actuated element 1045 is moved.Because annular actuated element 1045 parallel one side connect CIS membrane module 102, so when annular actuated element 1045 moves, just can drive CIS membrane module 102, make it to shift to the other end by an end of transparent file platform 101, and finish reading of document image.
The relative position of the utility model inner member please refer to Fig. 2 A and Fig. 2 B.Shown in Fig. 2 B, a rolling element 202 is respectively installed in the both sides of CIS membrane module 201, as positioning bead or ball.Rolling element 202 and transparent file platform 203 are and contact, to reduce the resistance of its friction.Rolling element 202 must be established three groups at least, and two groups are positioned at the same side, and another group then is positioned at the opposite side of CIS membrane module 201, and the balance when moving with maintenance CIS membrane module 201 can be referring to Fig. 2 A.Can install flexible member 2021 in the rolling element 202 additional as spring, when board vibrates or be out of shape, to adjust its error.
The outside installing conduction device 203 of rolling element 202, this conduction device 203 comprises a pair of back shaft 2031, chute 2032, and ball 2034.The end of back shaft 2031 has a ball 2034, and back shaft 2031 is moved in chute 2032.
Back shaft 2031 is to upper support CIS membrane module 201, and the surface below that makes it to be close to across rolling element 202 transparent file platform 203 moves.Can install flexible member 2033 additional on the back shaft 2031, as spring, the error during with vibration of absorption board or distortion.One side of CIS membrane module 201 has a clasp 2011, and annular gear 1045 (referring to Fig. 1) is connected this clasp 2011 to drive CIS membrane module 201.
Fig. 3 is another embodiment of the present utility model, and its design focal point is the same with preceding figure illustrated embodiment, just rolling element and conduction device has been done a little modifications.As shown in Figure 3, rolling element 301 can replace with roller, respectively assembles a roller 301 in CIS membrane module 302 both sides.The below of roller 301 also can install a flexible member 3011 additional, as spring.A guide shaft 3032 can be installed in back shaft 3031 bottoms of conduction device 303, and is inserted in guide rod 3033.Guide rod 3033 is fixed in the both sides of board base, so that CIS membrane module 302 moves along guide rod 3033.Can install a flexible member 3012 on the back shaft 3031 additional, as spring, the error during with vibration of absorption board or distortion.Embodiment's is the same in other element function and the earlier figures, here no longer narration.
The utility model uses rolling element and flexible member, makes the CIS membrane module can be close to the transparent file platform smooth-goingly and slides, and has solved the problem of CIS membrane module depth of field change, and also making the CIS membrane module be applied to platform-type scanner becomes feasible method.The reduced height that the utility model can make platform-type scanner is easy to carry to about the 30cm.Have again,, save cost because CIS membrane module height membrane moduleization can make assembling easier.The more important thing is that the utility model can guarantee that file in the field depth of CIS membrane module, makes the stable image quality of scanning.
Claims (8)
1. a rolling driving type optical scanner has a transparent file platform, is positioned at the board top and places file, it is characterized in that it also comprises: a CIS membrane module, and be located at described transparent file platform below, and read the image of file; One rolling element group is installed in the both sides of described CIS membrane module, and is close to the surface below of described transparent file platform, drives described CIS membrane module and slides in the surface below of described transparent file platform; One conduction device is installed in the outside of described rolling element group, and to the described CIS module of upper support group; And a drive unit, connect described CIS membrane module, make it to shift to the other end, and read document image by an end of file.
2. device as claimed in claim 1 is characterized in that, described conduction device comprises: a pair of back shaft, be connected the outside of described rolling element group respectively, and to the described CIS membrane module of upper support; A pair of chute lays respectively at the base both sides of board, and drives described paired back shaft and move along described paired chute; And a pair of ball, lay respectively at the below of described paired back shaft, and it is mobile in described paired chute to drive described paired back shaft.
3. device as claimed in claim 1 is characterized in that, described rolling element group is positioning bead, ball or roller.
4. device as claimed in claim 1 is characterized in that, described rolling element group also comprises several flexible members, and described CIS membrane module is subjected to its effect upper and lower displacement.
5. device as claimed in claim 2 is characterized in that described back shaft also comprises several flexible members, and described CIS membrane module is subjected to its effect upper and lower displacement.
6. device as claimed in claim 1 is characterized in that, described drive unit comprises: an annular actuated element is the loop shape, one side it parallel is connected described CIS membrane module; One roller set is positioned at two ends, board the same side, and cover merges the described annular actuated element of driving; One gear set connects described roller set, and drives described roller set rotation; One motor connects described gear set, and drives described gear set.
7. device as claimed in claim 6 is characterized in that, described annular actuated element is belt or cable wire.
8. device as claimed in claim 1 is characterized in that, described conduction device comprises: a pair of back shaft, be connected the described rolling element group outside respectively, and to the described CIS membrane module of upper support; Pair of guide rods, parallel shelf is located at the board both sides respectively, and supports described paired back shaft; And a pair of guide shaft, connect the bottom of described paired back shaft respectively, be sleeved on described paired described guide rod, and drive described paired back shaft and move along described paired guide rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97224087 CN2305691Y (en) | 1997-08-18 | 1997-08-18 | Rolling transmission type optical scanning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97224087 CN2305691Y (en) | 1997-08-18 | 1997-08-18 | Rolling transmission type optical scanning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2305691Y true CN2305691Y (en) | 1999-01-27 |
Family
ID=33938564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97224087 Expired - Fee Related CN2305691Y (en) | 1997-08-18 | 1997-08-18 | Rolling transmission type optical scanning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2305691Y (en) |
-
1997
- 1997-08-18 CN CN 97224087 patent/CN2305691Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |