CN1863264A - Manuscript reading device - Google Patents
Manuscript reading device Download PDFInfo
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- CN1863264A CN1863264A CN 200610077872 CN200610077872A CN1863264A CN 1863264 A CN1863264 A CN 1863264A CN 200610077872 CN200610077872 CN 200610077872 CN 200610077872 A CN200610077872 A CN 200610077872A CN 1863264 A CN1863264 A CN 1863264A
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- frame
- reading apparatus
- document reading
- original document
- imageing sensor
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Abstract
The manuscript reading device comprises: an image sensor, a crack to fix and support the sensor, a frame to support the crack, and a leaf spring with ends connected to the crack and frame respectively. This invention can inhibit sensor vibration.
Description
Technical field
The present invention relates to fixed configurations has the original document reading apparatus of the imageing sensor portion that reads original copy.
Background technology
For example in the original document reading apparatus such as photocopier or scanning means, exist to be used for original copy being made as the structure that is fixed in the device as the image sensor cell that image reads.
As this image read-out, disclosed structure has: image sensor cell, and it is used to read original copy; Light source cell, it is used for to original copy irradiating illumination light; Mirror unit, it is used for the reverberation from original copy 10 is conducted to image sensor cell (for example opening flat 7-38709 communique with reference to the spy).
As shown in Figures 1 and 2, existing image sensor cell 103 with original document reading apparatus is configured to be fixed in the device.This image sensor cell 103 has: lens 124, and its polymerization is from the reverberation of original copy; CCD (Charge-Coupled Device) 123, it is used to accept read by the reverberation of these lens 124 polymerizations and as image; Bracing frame 119, it supports these lens 124 and CCD123.
In addition, though not shown, this existing original document reading apparatus has the movable light source cell and the mirror unit that can move relative to original copy.These light source cells and mirror unit by the wire binding of travel mechanism, by this wire is twined to the peripheral part that drives drum, can draw light source cell and mirror unit, move abreast with original copy.
And, existing original document reading apparatus, its structure is, by image sensor cell 103, will be by the reverberation of light source cell and mirror unit reflection, see through lens 124 and read as image by CCD123.
Yet, existing original document reading apparatus, though it is not shown, but since during the operation of operation board or the action etc. that has the original copy of giving the ADF (Auto Document Feeder) that send original copy on the glass plate of original copy to give the motor of action or travel mechanism to mounting produce vibration, impact etc., vibrate so image sensor cell 103 produces.
Thus, because the CCD123 that is equipped on the image sensor cell 103 produces vibration, in the image that reads by this CCD123, shown in Fig. 3 A and Fig. 3 B, the problem that exists the straight line 121 described in the original copy 110 to produce as the distortion of reading images 120.
Therefore, produce vibration, in existing original document reading apparatus, taked following countermeasure respectively in order to suppress image sensor cell 103.
1) as shown in Figure 1, on the bracing frame 119 that supports image sensor cell 103, prolong and be formed with at the fixing stator 119a in the bottom surface of frame 108, this stator 119a and frame 108 are fixed by hold-down screw 118 screw stops on a large scale, can improve the rigidity of bracing frame 119 thus, and the vibration of decay image sensor cell 103 generations.
2) by increasing the thickness of the sheet metal that constitutes bracing frame 119, can improve the rigidity of bracing frame 119, and the vibration of decay image sensor cell 103 generations.
3) on bracing frame 119, dispose tabular weight 125, increase the weight of bracing frame 119 thus by hold-down screw 118 screw stops, thus the vibration that decay image sensor cell 103 produces.
Yet, take the existing original document reading apparatus of above-mentioned countermeasure, there is following problem.
During 1) by hold-down screw 118 screw stop bracing frames 119 and base plate 108, be subjected to the influence of the bending that produces on the frame 108 etc., the transmission route of vibration changes, and the vibration of passing to CCD123 also changes.That is, exist the inhibitory action of vibration to be subjected to the problem of influence of the deviation of manufacturing group.
When 2) increasing the thickness of the sheet metal that constitutes bracing frame 119, there is the increase of the weight that causes device integral body, in addition the too high problem of component costs.
3) because weight 125 is installed on bracing frame 119, cause part count to increase, the burden of assembling work increases.Thus, existing needs to prolong installation time, causes the increase of operation, the problem that manufacturing cost is too high.
In addition, shown in Fig. 4 A,, there is the structure of configuration conductive member 126 between bracing frame 119 and the frame 108 as EMI (Electro Magnetic Interference) countermeasure.Yet, this conductive member 126, the vibration suppression that is not image taking sensor unit 103 is a purpose, but is purpose with the conduction that improves as the EMI countermeasure.And this conductive member 126 shown in Fig. 4 B, with an end of frame 108 butts, is formed with a plurality of butt sheet 126a that become short palisade, and complex-shaped, processing cost is too high.
Summary of the invention
The purpose of this invention is to provide and to suppress the vibrative original document reading apparatus of imageing sensor portion well.
In order to achieve the above object, the original document reading apparatus that the present invention relates to has: imageing sensor portion, and it is used to read original copy; Bracing frame, it is fixed with this imageing sensor portion and supports imageing sensor; Frame, it supports this bracing frame.And this original document reading apparatus has vibration suppressing mechanism, and it is made as an end and bracing frame butt, the other end and frame butt, and, produce vibration and suppress imageing sensor portion by to the direction application of force of bracing frame away from frame.
According to the original document reading apparatus that the present invention relates to as above formation, the bracing frame that is supported with imageing sensor portion produces when vibrating, and by the vibration of vibration suppression mechanism attenuation by absorption bracing frame generation well, and suppresses the generation vibration of imageing sensor portion.
According to the original document reading apparatus that the present invention relates to as described, can suppress imageing sensor portion well and produce vibration.
By the following explanation that accompanying drawing carried out of referential expression example of the present invention, can be clear and definite described and other the features and advantages of the present invention.
Description of drawings
Fig. 1 is the stereogram of the existing image sensor cell of expression.
Fig. 2 is the end view of the existing image sensor cell of expression.
Fig. 3 A and Fig. 3 B are used for illustrating that reading images produces the figure that distorts.
Fig. 4 A and Fig. 4 B are the stereograms of existing other image sensor cells of expression.
Fig. 5 is the vertical view of the original document reading apparatus of expression present embodiment.
Fig. 6 is the end view of the original document reading apparatus of expression present embodiment.
Fig. 7 is the stereogram of presentation video sensor unit.
Fig. 8 A and Fig. 8 B are the figure that is used to illustrate the leaf spring of image sensor cell.
Embodiment
The original document reading apparatus of present embodiment is applicable to for example photocopier or scanning means etc.
As Fig. 5 and shown in Figure 6, original document reading apparatus has: image sensor cell 3, and it is used to read the original copy 10 that is equipped on the glass plate 9; Light source cell 4, it is used for to original copy 10 irradiating illumination light; Mirror unit 5, it is used for the reverberation from original copy 10 is guided to image sensor cell 3; Travel mechanism 6, it makes light source cell 4 and mirror unit 5 move relative to original copy; Frame 8, it supports these each unit 3,4,5.
And for this image sensor cell 3, the leaf spring 17 as suppressing bracing frame 19 vibrative vibration suppression unit is positioned near the CCD23, and is located at a side of the longitudinally of bracing frame 19.Leaf spring 17, one ends are fixed in a side of bracing frame 19 by hold-down screw 18 screw stops, the other end and frame 8 butts, by elastic force to the direction application of force of bracing frame 19 away from frame 8.
In addition, described image sensor cell 3, though adopt the structure that suppresses vibration by leaf spring 17, but adopt for example not shown, compression helical spring or turned round helical spring, in the relative gap of bracing frame 19 and frame 8, an end is fixed in bracing frame 19, the other end is configured to the structure with frame 8 butts, also can obtain same effect.In addition, leaf spring 17 also can be located at a plurality of places of the longitudinally of bracing frame 19 as required respectively.
As Fig. 5 and shown in Figure 6, light source cell 4, its structure is to move in device, has: lamp 11, it is to the original copy 10 irradiating illumination light that are equipped on glass plate 9; Speculum 12, it will reflect to mirror unit 5 from the reverberation of original copy 10.
It is one that light source cell 4 and mirror unit 5 are linked by wire 36, is wound in the peripheral part that drives drum 34 by this wire 36, can draw light source cell 4 and mirror unit 5, makes its reading face with original copy 10 mobile abreast.
Has image sensor cell 3 as the original document reading apparatus of above formation, for example, during by user's operating operation dish (not illustrating) or since the motor 30 of travel mechanism 6 produces vibration or from the impact of outside etc. when framework 19 transmits vibration, because strain takes place in the relative gap leaf spring 17 in bracing frame 19 and frame 8, so the vibration of attenuation by absorption bracing frame 19 well.Thus, can suppress well to produce vibration by the image sensor cell 3 of bracing frame 19 supports.
In addition, leaf spring 17, being made as an end is fixed on the bracing frame 19, the other end and frame 8 butts, by to bracing frame 19 relative frames 8 away from the direction application of force, even for example produce bending etc. on the frame 8 because the manufacturing group makes, cause the situation of the transmission route generation conversion of vibration, the inhibitory action that also can suppress to vibrate produces deviation.
As described, according to original document reading apparatus, being made as an end is fixed on the bracing frame 19, the other end and frame 8 butts, to bracing frame 19 relative frames 8 away from the leaf spring 17 of the direction application of force, since be located at image sensor cell 3, thus the vibration that image sensor cell 3 produces can be suppressed well, and can suppress this inhibitory action generation deviation.
In addition, according to this original document reading apparatus, by hold-down screw 18 leaf spring 17 stop of simpler structure are fixed on the bracing frame 19, produce vibration, so can reduce the manufacturing cost of the vibration that is used to suppress image sensor cell owing to can suppress image sensor cell 3 well.
In addition, in the original document reading apparatus of present embodiment, adopted and had the light source cell 4 that can move relative to original copy 10 and the structure of mirror unit 5, but, also can adopt certainly to have and on glass plate 9, give the automatic structure of sending unit (not shown) of giving of sending original copy 10 so long as be configured to be fixed with the structure of image sensor cell 3.
In addition, in the original document reading apparatus of present embodiment, be fixed in the leaf spring 17 on the bracing frame 19, adopted the structure of the base plate butt of relative frame 8, but the part that also can adopt frame 8 constitutes the sky plate of glass plate 9 sides, relatively this day plate, be fixed in the leaf spring on the bracing frame 19 and the structure of its butt.
Though expressed and described preferred implementations more of the present invention in detail, under the condition that does not break away from aim of the present invention or scope, can suitably carry out various changes and modification.
Claims (6)
1, a kind of original document reading apparatus is characterized in that, has:
Imageing sensor portion, it is used to read original copy;
Bracing frame, it is made as and is fixed with described imageing sensor portion, and supports described imageing sensor portion;
Frame, it supports support frame as described above;
Vibration suppressing mechanism, it is made as an end and support frame as described above butt, and the other end and described frame butt, and by to the direction application of force that makes support frame as described above away from described frame produce vibration and suppress described imageing sensor portion.
2, original document reading apparatus according to claim 1 is characterized in that,
Described vibration suppressing mechanism has spring member, and it is made as an end and is fixed in support frame as described above, the other end and described frame butt.
3, original document reading apparatus according to claim 2 is characterized in that,
Described spring member is a leaf spring.
4, original document reading apparatus according to claim 1 is characterized in that,
Support frame as described above forms long chi shape, and the two ends of longitudinally are fixed and be supported in described frame by screw stop,
Described vibration suppressing mechanism is disposed at the central portion of the longitudinally of support frame as described above.
5, original document reading apparatus according to claim 1 is characterized in that,
Light source portion and the configuration of described imageing sensor part body ground to original copy irradiating illumination light.
6, original document reading apparatus according to claim 1 is characterized in that,
Described imageing sensor portion has: lens combination, and its guiding is from the reverberation of original copy; CCD, it accepts the light by this lens combination guiding.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005139497A JP2006319605A (en) | 2005-05-12 | 2005-05-12 | Original reading apparatus |
| JP2005139497 | 2005-05-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1863264A true CN1863264A (en) | 2006-11-15 |
Family
ID=37390584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610077872 Pending CN1863264A (en) | 2005-05-12 | 2006-05-09 | Manuscript reading device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2006319605A (en) |
| CN (1) | CN1863264A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101464643B (en) * | 2007-12-18 | 2011-12-07 | 株式会社东芝 | Image scanning unit and image forming apparatus including the image scanning unit |
| CN102469236A (en) * | 2010-11-08 | 2012-05-23 | 富士施乐株式会社 | Image reading apparatus |
-
2005
- 2005-05-12 JP JP2005139497A patent/JP2006319605A/en active Pending
-
2006
- 2006-05-09 CN CN 200610077872 patent/CN1863264A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101464643B (en) * | 2007-12-18 | 2011-12-07 | 株式会社东芝 | Image scanning unit and image forming apparatus including the image scanning unit |
| CN102469236A (en) * | 2010-11-08 | 2012-05-23 | 富士施乐株式会社 | Image reading apparatus |
| CN102469236B (en) * | 2010-11-08 | 2016-03-02 | 富士施乐株式会社 | Image read-out |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2006319605A (en) | 2006-11-24 |
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