CN102256037B - Scanning mechanism - Google Patents
Scanning mechanism Download PDFInfo
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- CN102256037B CN102256037B CN201010181244.6A CN201010181244A CN102256037B CN 102256037 B CN102256037 B CN 102256037B CN 201010181244 A CN201010181244 A CN 201010181244A CN 102256037 B CN102256037 B CN 102256037B
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- scanning element
- track
- bearing
- sweep mechanism
- driving member
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Abstract
The invention relates to a scanning mechanism, which comprises a scanning unit, a track and a driving element, wherein the scanning unit is provided with a jointing part and a bearing part and arranged on the track in a sliding way by the bearing part; the driving element is connected to the jointing part of the scanning unit to drive the scanning unit to slide along the track; and the orthographic projection of the jointing part on the track is superposed with that of the bearing part on the track. The scanning unit of the scanning mechanism provided by the invention can move smoothly to further improve the image scanning quality of the scanning mechanism.
Description
Technical field
The present invention relates to a kind of sweep mechanism, relate in particular to a kind of sweep mechanism of optical scanner module.
Background technology
Along with the progress of software and hardware, scanner has become one of basic outfit of many computer users, and it can be by word or pictorial data such as file, magazine, books, pictures, and scanning input computer is also processed.
In various scanners, platform type scanner is the most frequently used one.In the time that wish scans file, the transmission mechanism such as gear train and driving belt that needs motor, be arranged in scanning element drives scanning element, and scanning element is slided along an axis of guide, so that the object that is placed horizontally at scanning element top is scanned.
But in this mechanism, because above-mentioned these motors, driving belt and gear train are arranged on a side of the axis of guide conventionally, and and the axis of guide between have a distance, therefore, when motor drives when scanning element via driving belt, driving belt can cause moment of torsion to scanning element.This moment of torsion can make scanning element move along the axis of guide abreast, allows the displacement of the relative both sides of scanning element occur gap, and then causes scanning image quality out unstable.
Summary of the invention
Its scanning element the object of this invention is to provide a kind of sweep mechanism, so that can smoothly move.
One embodiment of the invention provide a kind of sweep mechanism, and it comprises one scan unit, a track and a driving member.Scanning element has a junction surface and a bearing and leaning portion, and wherein scanning element configures in orbit slidably by bearing and leaning portion.Driving member is connected to the junction surface of scanning element, to drive scanning element to slide along the track.Junction surface orthographic projection and bearing and leaning portion orthographic projection in orbit is in orbit overlapped.
In one embodiment of this invention, above-mentioned junction surface and bearing and leaning portion are positioned in fact the central authorities of scanning element.
In one embodiment of this invention, above-mentioned scanning element has relative two sides, and driving member is a belt.One end of belt is connected to one of them of side of scanning element, and the other end of belt is walked around track and be connected to wherein another of the side of scanning element.
In one embodiment of this invention, above-mentioned belt and track are in the same plane in fact.
In one embodiment of this invention, above-mentioned sweep mechanism also comprises a base, is configured in the below of scanning element, wherein above-mentioned track by from base towards the extended projection of scanning element.
In one embodiment of this invention, above-mentioned sweep mechanism also comprises a guide post, is configured in the below of scanning element, and above-mentioned track bears against the part pole face on this guide post for bearing and leaning portion.
In one embodiment of this invention, above-mentioned guide post has a hollow bulb, and belt is connected to scanning element through hollow bulb.
Based on above-mentioned, in the above embodiment of the present invention, the junction surface being connected with driving member due to scanning element, and the bearing and leaning portion that couples of scanning element and track, its orthographic projection is in orbit overlapped, and therefore, when driving member is in the time driving scanning element to slide along the track, this kind of mutual configuration relation makes driving member can not produce the moment of torsion that scanning element is caused to beat, thereby this sweep mechanism can make its scanning element slide along the track abreast, and then promote the scanning quality of scanning element.
For above-mentioned feature and advantage of the present invention can be become apparent, special embodiment below, and coordinate accompanying drawing to be described in detail below.
Brief description of the drawings
Fig. 1 is the schematic diagram of a kind of sweep mechanism of one embodiment of the invention.
Fig. 2 is that a kind of sweep mechanism of another embodiment of the present invention is at the part sectioned view at driving member and track place.
Fig. 3 is the schematic diagram of a kind of sweep mechanism of another embodiment of the present invention.
Main element symbol description:
100,300: sweep mechanism; 110: scanning element;
112: junction surface; 114: bearing and leaning portion;
120,320: track; 122: hollow bulb;
130,230: driving member; 140: transmission module;
142: motor; 144: belt gear;
146: belt pulley; 350: base;
E1: the first side; E2: the second side;
P1: plane.
Embodiment
Fig. 1 is the schematic diagram of a kind of sweep mechanism of one embodiment of the invention.Please refer to Fig. 1, in the present embodiment, sweep mechanism 100 is to be applied in one scan device (not shown).Sweep mechanism 100 comprises one scan unit 110, a track 120 and a driving member 130.Scanning element 110 is for example charge coupled cell (the charge coupled device of a group pattern formula; Referred to as: CCD) (not shown), in order to object (not shown) is carried out to optics sensing to reach the object of image scan.Scanning element 110 has a junction surface 112 and a bearing and leaning portion 114, and wherein scanning element 110 is configured on track 120 slidably by bearing and leaning portion 114.Driving member 130 is connected to the junction surface 112 of scanning element 110, to drive scanning element 110 to slide along track 120.
Orthographic projection and bearing and leaning portion 114 orthographic projection on track 120 of junction surface 112 on track 120 is overlapped.In other words, track 120, junction surface 112 in the present embodiment are positioned at same plane P1 above with bearing and leaning portion 114, and junction surface 112 is positioned at the top of bearing and leaning portion 114.Thus, in the time that scanning element 110 transmission parts 130 drive and slide along track 120, the resultant moment that driving member 130 puts in scanning element 110 is essentially zero, so that driving member 130 can drive scanning element 110 to slide abreast along track 120, and unlikely generation makes the moment of torsion of scanning element 110 beats, to avoid the inconsistent situation of scanning distance of scanning element 110 relative both sides.
Details are as follows in addition again, in the present embodiment, driving member 130 is for example a belt, and its one end is connected in one first side E1 of scanning element 110, and its other end is walked around track 120 and be connected in the one second side E2 of scanning element 110 with respect to the first side E1.In the present embodiment, driving member 130 is to be for example connected on the junction surface 112 of scanning element 110 by a fixture (not shown).Moreover junction surface 112 and bearing and leaning portion 114 are positioned in fact the centre of scanning element 110.The present embodiment does not limit the structure external form of driving member 130 and is connected to the mechanism of scanning element 110.In another unshowned embodiment of the present invention, driving member also can be a rope or refining bar, and fixture is also had some change along with the kind difference of driving member.
In addition, in the present embodiment, sweep mechanism 100 comprises a transmission module 140, and transmission module 140 comprises a motor 142, a belt gear 144, a belt pulley 146 and above-mentioned driving member 130.Belt gear 144 is configured on motor 142, and driving member 130 is engaged on belt gear 144, and supports driving member 130 by belt pulley 146.Belt pulley 146 also has an adjusting mechanism (not shown), uses as the use of adjusting belt tension.The present embodiment does not limit the form of motor 142 in transmission module 140, belt gear 144 and belt pulley 146, still has other can be in order to drive the mode of driving member 130, and above-described embodiment is only one of them of the numerous embodiment of the present invention.
In addition, the present invention does not limit junction surface 112 yet and is positioned at the position in scanning element 110 with bearing and leaning portion 114, in another unshowned embodiment of the present invention, all meet and be positioned at same plane and junction surface 112 is positioned under the prerequisite directly over bearing and leaning portion 114 with bearing and leaning portion 114 at track 120, junction surface 112, junction surface 112 and bearing and leaning portion 114 also can be positioned at any side of scanning element 110, and track 120 can pass through any side of scanning element 110.
In the present embodiment, track 120 is for example a guide post, it is positioned at the below of scanning element 110, and scanning element 110 is coupled in by bearing and leaning portion 114 on the part pole face of guide post, and driving member 130 is in fact all positioned in plane P 1 with track 120, the strength that driving member 130 is applied in scanning element 110 is parallel to track 120 and is positioned in this plane P 1, to guarantee that driving member 130 can not cause the moment of torsion that makes its beat to scanning element 110.Moreover track 120 has a hollow bulb 122, wherein driving member 130 is connected to scanning element through this hollow bulb 122.
But the present embodiment is not limited this, Fig. 2 is that a kind of sweep mechanism of another embodiment of the present invention is at the part sectioned view at driving member and track place.Please refer to Fig. 2, different from above-described embodiment, the driving member 230 of the present embodiment is walked around the hollow bulb 122 of track 120, and the belt in the present embodiment is centered around top and the below of guide post, and this measure can reach effect same as the previously described embodiments equally.
Accordingly, the present invention is not limited the structure external form of track 120.In another unshowned embodiment of the present invention, track also can be the guide post with other different section shapes.
Moreover Fig. 3 is the schematic diagram of a kind of sweep mechanism of another embodiment of the present invention.Please refer to Fig. 3, in the present embodiment, sweep mechanism 300 comprises driving member same as the previously described embodiments 130 and scanning element 110, and the difference is that, sweep mechanism 300 also comprises a base 350, and it is configured in scanning element 110 belows.Track 320 is towards the extended projection of scanning element 110 from base 350.Accordingly, scanning element 110 can be coupled on track 320 slidably by bearing and leaning portion 114, moreover 130 belows from base 350 of driving member are passed to be connected to scanning element 110.
From the embodiment of above-mentioned Fig. 1 and the embodiment of Fig. 3, the present invention does not limit the structure external form of track 120, track 320, anyly make track 120 (or track 320) and junction surface 112, bearing and leaning portion 114 person that is positioned in same plane, all applicable to the present invention.In other words, designer can be changed the structure external form of track 120, track 320 according to the space in scanner and the kind of drive, or track 120, track 320 are carried out to suitable combination with other members in scanner.
In sum, in the above embodiment of the present invention, sweep mechanism overlaps each other by the orthographic projection in orbit of its junction surface, bearing and leaning portion, to cause all in the same plane and junction of this three in the allocative effect of bearing and leaning portion top.So, when scanning element transmission part drives, can not produce and allow the moment of torsion of scanning element beat, and then scanning element can be slid along the track abreast.This measure can allow the relative both sides of the scanning module displacement within the unit interval consistent, effectively to promote the stability of scanning element while sliding, and then improves the image scanning quality of sweep mechanism.
Although the present invention discloses as above with embodiment; but it is not in order to limit the present invention, any those skilled in the art, without departing from the spirit and scope of the present invention; can suitably change or be equal to replacement, therefore protection scope of the present invention should be as the criterion with the scope that claims were defined.
Claims (6)
1. a sweep mechanism, is characterized in that, comprising:
One scan unit, has a junction surface and a bearing and leaning portion;
One track, described scanning element is configured in slidably by bearing and leaning portion on described track; And
One driving member, is connected to the described junction surface of described scanning element, and described driving member drives described scanning element to slide along described track, and orthographic projection and the described bearing and leaning portion orthographic projection on described track of wherein said junction surface on described track is overlapped,
Wherein said scanning element has relative two sides, and described driving member is a belt, one end of described belt is connected to one of them of described two sides of described scanning element, and the other end of described belt is walked around described track and wherein another of the described two sides that are connected to described scanning element.
2. sweep mechanism according to claim 1, is characterized in that, described bearing and leaning portion and described junction are in the central authorities of described scanning element.
3. sweep mechanism according to claim 1, is characterized in that, described belt and described track are in the same plane.
4. sweep mechanism according to claim 1, is characterized in that, also comprises:
One base, is configured in the below of described scanning element, and described track by from described base towards the extended projection of described scanning element.
5. sweep mechanism according to claim 1, is characterized in that, also comprises:
One guide post, is configured in the below of described scanning element, and described track bears against the part pole face on described guide post for described bearing and leaning portion.
6. sweep mechanism according to claim 5, is characterized in that, described guide post has a hollow bulb, and described belt is connected to described scanning element through described hollow bulb.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010181244.6A CN102256037B (en) | 2010-05-17 | 2010-05-17 | Scanning mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010181244.6A CN102256037B (en) | 2010-05-17 | 2010-05-17 | Scanning mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102256037A CN102256037A (en) | 2011-11-23 |
| CN102256037B true CN102256037B (en) | 2014-06-18 |
Family
ID=44983015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010181244.6A Expired - Fee Related CN102256037B (en) | 2010-05-17 | 2010-05-17 | Scanning mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102256037B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI469880B (en) * | 2011-12-12 | 2015-01-21 | Cal Comp Electronics & Comm Co | Tramsmitting module and multi-functional printer using the same |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2419612Y (en) * | 2000-04-19 | 2001-02-14 | 宋昕 | Scanner with improved lens moving machanism |
| CN2676299Y (en) * | 2003-12-31 | 2005-02-02 | 德茂科技股份有限公司 | Flat-bed scanner with penetrative scan function |
| CN1744653A (en) * | 2004-09-04 | 2006-03-08 | 三星电子株式会社 | Scanner and imaging device with scanner |
-
2010
- 2010-05-17 CN CN201010181244.6A patent/CN102256037B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2419612Y (en) * | 2000-04-19 | 2001-02-14 | 宋昕 | Scanner with improved lens moving machanism |
| CN2676299Y (en) * | 2003-12-31 | 2005-02-02 | 德茂科技股份有限公司 | Flat-bed scanner with penetrative scan function |
| CN1744653A (en) * | 2004-09-04 | 2006-03-08 | 三星电子株式会社 | Scanner and imaging device with scanner |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102256037A (en) | 2011-11-23 |
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