CN202889472U - Scanning device - Google Patents
Scanning device Download PDFInfo
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- CN202889472U CN202889472U CN201220574840.5U CN201220574840U CN202889472U CN 202889472 U CN202889472 U CN 202889472U CN 201220574840 U CN201220574840 U CN 201220574840U CN 202889472 U CN202889472 U CN 202889472U
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- scanning
- elastic component
- scanning platform
- sheet medium
- medium materials
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- 239000000463 material Substances 0.000 claims abstract description 91
- 238000000034 method Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000005483 Hooke's law Effects 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Abstract
The utility model discloses a scanning device, including scanning platform, paper feed gyro wheel, first elastic component and second elastic component. The scanning platform can read the sheet media; the paper feed roller can rotate and drive the flaky media material to move; the first elastic piece applies a force to the scanning platform to enable the scanning platform to be abutted against the paper feeding roller; the second elastic piece is opposite to the first elastic piece and applies a force to the scanning platform to enable the scanning platform to be abutted against the paper feeding roller. The side wall of the scanning platform, which is close to the first elastic piece, is an aligned reference end of the sheet-shaped medium material, and the force applied to the scanning platform by the first elastic piece is greater than the force applied to the scanning platform by the second elastic piece; or the force applied to the scanning platform by the first elastic member is equal to the force applied to the scanning platform by the second elastic member, and the distance between the first elastic member and the reference end is smaller than the distance between the second elastic member and the second end. The utility model discloses enable slice medium material and level and pass through scanning device and reduce crooked production.
Description
Technical field
The utility model relates to a kind of scanning system, particularly relates to a kind of scanning means that can effectively guarantee quality of scanning.
Background technology
In order to use more convenient and fast, store and the file publishing data, there are now many application to need optical scanner.To be converted to electronic format as the literal of carrier or graph data with paper by optical scanner processes with the follow-up data of facility.Portable scanner produces with little, the portable advantage of its volume thereupon.
See also Fig. 1 and Fig. 2, existing a kind of portable scanning means comprises one scan platform 91, is provided with paper-feed 92 above scanning platform 91, and the place, close two ends below scanning platform 91 is provided with respectively a spring 93.Existing portable scanning means is because the little consideration of volume, outside large-scale feeding box and paper guide not being set, thus file centering can't be scanned, thereby when scanning document, file can be close to an end of paper feed port 90, to reduce crooked in scanning process of file.The right-hand member of portable type scanning means is reference edge among definition Fig. 1 and Fig. 2, and namely file is close to the right-hand member paper feed of paper feed port.Definition is the first spring near the spring of reference edge, and the spring of the other end is the second spring.Take the long limit center line of scanning platform 91 as symmetrical centre, two springs 93 are positioned at symmetrical position, and two springs 93 are identical spring.When scanning process begins, the user puts into paper feed port guiding paper 94 with paper 94 and enters between paper-feed 92 and the scanning platform 91.Because two springs 93 are supported scanning platform 91, make scanning platform 91 and paper-feed 92 clamp paper 94, thereby 92 pairs of paper of paper-feed 94 produce a frictional force, paper-feed 92 rotates and drive paper 94, simultaneously, scanning platform 91 is along the scanning direction, and namely the long side direction of scanning platform 91 sequentially obtains the wherein image of one side of file.
But, above-mentioned existing portable type scanner is when scanning the file of general stationery, because the thickness of general paper file is all very thin, and about slightly 0.1mm, the stressed zone of paper file can obtain average positive force, serious crooked of unlikely generation in the paper feed scanning process.Yet when the thicker small size sheet medium materials of scanning thickness, especially during the card 95 such as identity card, bank card, because card 95 is hard and thickness is large, can make scanning platform 91 occur crooked away from the inferior horn of reference edge as fulcrum take card 95.As shown in Figure 2, two identical springs 93 force in scanning platform 91, but different arm of force L1 and L2 are arranged but, therefore the moment that is subjected to than the first spring place of the moment that is subjected in the second spring place of scanning platform 91 is for large, scanning platform 91 can rotate a minute angle until standing balance to clockwise direction, then can produce a gap between the scanning platform 91 of reference edge and card, the frictional force that causes paper-feed 92 drive cards to advance is inhomogeneous, thereby scanning image slanting out.
In view of above shortcoming, existing portable scanning means is real to be necessary to be improved.
Summary of the invention
The purpose of this utility model is to provide a kind of scanning means that can effectively guarantee quality of scanning for above-mentioned the deficiencies in the prior art.
For achieving the above object, the utility model provides a kind of scanning means, has a paper feed port, put into the sheet medium materials in this scanning means in order to guide the user, its paper feed port becomes a long groove shape, and described sheet medium materials comprise first kind sheet medium materials, and Equations of The Second Kind sheet medium materials, wherein the thickness of the Thickness Ratio first kind sheet medium materials of Equations of The Second Kind sheet medium materials is thick, and described scanning means comprises:
The one scan platform can read the sheet medium materials, and is a bulk, this scanning platform has the one scan direction, this scanning direction is the long side direction of this scanning platform, is the long side direction of this paper feed port, and this scanning platform sequentially obtains on the sheet medium materials the wherein image of one side along the scanning direction;
One paper-feed arranges and to contact with scanning platform, rotatably and drive the sheet medium materials and move;
One first elastic component is located at an end of scanning platform scanning direction, and applies a strength in scanning platform, makes scanning platform be resisted against paper-feed;
One second elastic component is located at the other end of scanning platform scanning direction, and is relative with the first elastic component, and apply a strength in scanning platform, make scanning platform be resisted against paper-feed, wherein, the strength that the first elastic component puts on scanning platform puts on the strength of scanning platform greater than the second elastic component;
When scanning was carried out, the first elastic component and the second elastic component put on scanning platform strength, make scanning platform be resisted against paper-feed, and the sheet medium materials are driven by paper-feed, read on the sheet medium materials the wherein image of one side by scanning platform.
In the utility model one embodiment, described scanning platform has for for the reference edge of sheet medium materials alignment with respect to the second end of this reference edge, and this scanning platform near the sidewall of this first elastic component as this reference edge for this sheet medium materials alignment.
In the utility model one embodiment, the spring wire diameter of described the first elastic component is greater than the spring wire diameter of described the second elastic component.
In the utility model one embodiment, the spring outer diameter of described the first elastic component is less than the spring outer diameter of described the second elastic component.
In the utility model one embodiment, the number of active coils of described the first elastic component is greater than the number of active coils of described the second elastic component.
For achieving the above object, the utility model provides another kind of scanning means, has a paper feed port, put into the sheet medium materials in this scanning means in order to guide the user, its paper feed port becomes a long groove shape, and described sheet medium materials comprise first kind sheet medium materials, and Equations of The Second Kind sheet medium materials, wherein the thickness of the Thickness Ratio first kind sheet medium materials of Equations of The Second Kind sheet medium materials is thick, and described scanning means comprises:
The one scan platform can read the sheet medium materials, and is a bulk, this scanning platform has the one scan direction, this scanning direction is the long side direction of this scanning platform, is the long side direction of paper feed port, and this scanning platform sequentially obtains on the sheet medium materials the wherein image of one side along the scanning direction;
One paper-feed contacts with scanning platform, and is rotatable and drive the sheet medium materials and move;
One first elastic component is located at an end of scanning platform scanning direction, and applies a strength in scanning platform, makes scanning platform be resisted against paper-feed;
One second elastic component, be located at the other end of scanning platform scanning direction, relative with the first elastic component, and apply a strength in scanning platform, make scanning platform be resisted against paper-feed, wherein, the strength that the first elastic component puts on scanning platform equals the strength that the second elastic component puts on scanning platform, scanning platform has for for the reference edge of this sheet medium materials alignment with respect to the second end of this reference edge, and near the sidewall of the first elastic component reference edge as the alignment of sheet medium materials, and the spacing of the first elastic component and reference edge is less than the second elastic component and with respect to the distance of the second end of this reference edge take scanning platform;
When scanning was carried out, the first elastic component and the second elastic component put on scanning platform strength, make scanning platform be resisted against paper-feed, and the sheet medium materials are driven by paper-feed, read on the sheet medium materials the wherein image of one side by scanning platform.
In the utility model one embodiment, described the first elastic component and the second elastic component are spring, and the spring constant of described the first elastic component equals the spring constant of described the second elastic component.
In sum, the utility model scanning means is by near the spring constant of the first elastic component of the reference edge spring constant greater than the second elastic component of the other end, when the Equations of The Second Kind sheet medium materials that thickness is thicker pass through, Equations of The Second Kind sheet medium materials are away from the equalising torque of the fulcrum both sides of the inferior horn of reference edge, perhaps by near the first elastic component of reference edge from the distance of the reference edge distance less than the second elastic component distance the second end, the first elastic component directly applies a strength in scanning platform, make scanning platform and paper-feed clamp that Equations of The Second Kind sheet medium materials are smooth to reduce crooked generation by scanning means, thereby can effectively guarantee quality of scanning.
Description of drawings
Fig. 1 is the three-dimensional exploded view of the scanning means of existing feedback original text formula.
Cutaway view when Fig. 2 is the card that the scanning means drilling depth of existing feedback original text formula is very little less, hard and thickness is large.
Fig. 3 is the three-dimensional exploded view of an embodiment of the utility model scanning means.
Fig. 4 is the cutaway view of the utility model scanning means when advancing the thicker sheet medium materials of thickness.
Fig. 5 is the three-dimensional exploded view of another embodiment of the utility model scanning means.
Wherein, description of reference numerals is as follows:
Scanning platform 1 paper-feed 2
The first elastic component 3 second elastic components 4
Paper feed port 5 Equations of The Second Kind sheet medium materials 6
Embodiment
By describing technology contents of the present utility model, structural feature in detail, realized purpose and effect, below in conjunction with execution mode and cooperate that accompanying drawing is detailed to give explanation.
See also Fig. 3, as shown in FIG., the utility model scanning means has a paper feed port 5, puts into the sheet medium materials in this scanning means in order to guide the user, 5 one-tenth one long groove shapes of its paper feed port.Described sheet medium materials comprise first kind sheet medium materials, and Equations of The Second Kind sheet medium materials 6, and wherein the thickness of the Thickness Ratio first kind sheet medium materials of Equations of The Second Kind sheet medium materials 6 is thick.
Described scanning means comprises:
One scan platform 1 can read the sheet medium materials, and is a bulk, defines its long side direction for its scanning direction, and namely the long side direction of paper feed port 5 is the scanning direction, and this scanning platform 1 sequentially obtains on the sheet medium materials the wherein image of one side along the scanning direction;
One paper-feed 2 arranges and to contact with scanning platform 1, rotatably and drive the sheet medium materials and move;
One first elastic component 3 is located at an end of scanning platform 1 scanning direction, and applies a strength in scanning platform 1, makes scanning platform 1 be resisted against paper-feed 2;
One second elastic component 4, be located at the other end of scanning platform 1 scanning direction, relative with the first elastic component 3, and apply a strength in scanning platform 1, make scanning platform 1 be resisted against paper-feed 2, wherein, the first elastic component 3 strength of putting on scanning platform 1 puts on the strength of scanning platform 1 greater than the second elastic component 4;
Scanning platform 1 has for for the reference edge of sheet medium materials alignment with respect to the second end of reference edge, in the present embodiment, with scanning platform 1 near the sidewall of the first elastic component 3 as the reference edge for the alignment of sheet medium materials, when scanning is carried out, after putting into the sheet medium materials, the first elastic component 3 and the second elastic component 4 put on scanning platform 1 strength, make scanning platform 1 be resisted against paper-feed 2, the sheet medium materials are driven by paper-feed 2, read on the sheet medium materials the wherein image of one side by scanning platform 1.
See also Fig. 3 and Fig. 4, in the first embodiment, described the first elastic component 3 and the second elastic component 4 are spring, and the spring constant of the first elastic component 3 is greater than the spring constant of the second elastic component 4.
When the thicker Equations of The Second Kind sheet medium materials 6 of scanning thickness, avoid scanning platform 1 to occur crooked away from the inferior horn of reference edge as fulcrum take Equations of The Second Kind sheet medium materials 6, principle according to equalising torque and Hooke's law, F1 * L1=F2 * L2, i.e. K1 * Δ X1 * L1=K2 * Δ X2 * L2, wherein, L1＜L2, therefore Δ X1=Δ X2 needs K1〉K2, namely the spring constant of the first elastic component 3 is greater than the spring constant of the second elastic component 4.When satisfying above-mentioned condition, the equalising torque of fulcrum both sides, scanning platform 1 does not produce crooked, and scanning platform 1 and the paper-feed 2 clamping Equations of The Second Kind sheet medium materials 6 smooth scanning means that pass through.
For satisfying K1〉K2, namely the spring constant of the first elastic component 3 is greater than the spring constant of the second elastic component 4, and the method that can take is:
One, in the identical situation of other coefficient, the spring wire diameter of the first elastic component 3 (making the steel wire diameter of spring) is greater than the spring wire diameter of the second elastic component 4;
Two, in the identical situation of other coefficient, the spring outer diameter of the first elastic component 3 (maximum outside diameter of spring) is less than the spring outer diameter of the second elastic component 4.
Three, in the identical situation of other coefficient, the number of active coils of the first elastic component 3 (spring can keep the number of turns of same pitch) is greater than the number of active coils of the second elastic component 4.
See also Fig. 5, among the second embodiment, the utility model scanning scanning means comprises:
One scan platform 1 can read the sheet medium materials, and is a bulk, defines its long side direction for its scanning direction, and namely the long side direction of paper feed port 5 is the scanning direction, and this scanning platform 1 sequentially obtains on the sheet medium materials the wherein image of one side along the scanning direction;
One paper-feed 2 arranges and to contact with scanning platform 1, rotatably and drive the sheet medium materials and move;
One first elastic component 3 is located at an end of scanning platform 1 scanning direction, and applies a strength in scanning platform 1, makes scanning platform 1 be resisted against paper-feed 2;
One second elastic component 4, be located at the other end of scanning platform 1 scanning direction, relative with the first elastic component 3, and apply a strength in scanning platform 1, make scanning platform 1 be resisted against paper-feed 2, wherein, the first elastic component 3 strength of putting on scanning platform 1 equals the strength that the second elastic component 4 puts on scanning platform 1;
Wherein, the first elastic component 3 and the second elastic component 4 are spring, and the spring constant of the first elastic component 3 equals the spring constant of the second elastic component 4, and the spacing of the first elastic component 3 and reference edge is less than the distance of the second elastic component 4 and the second end, when scanning is carried out, take scanning platform 1 near the sidewall of the first elastic component 3 reference edge as the alignment of sheet medium materials, after putting into the sheet medium materials, the first elastic component 3 and the second elastic component 4 put on scanning platform 1 strength, make scanning platform 1 be resisted against paper-feed 2, the sheet medium materials are driven by paper-feed 2, read on the sheet medium materials the wherein image of one side by scanning platform 1.
When the thicker Equations of The Second Kind sheet medium materials 6 of scanning thickness, because and the spacing of the first elastic component 3 and reference edge is less than the distance of the second elastic component 4 and the second end, Equations of The Second Kind sheet medium materials 6 alignment reference edges enter, the moment that the first elastic component 3 produces approximates the moment that the second elastic component 4 produces, scanning platform 1 does not produce crooked, and scanning platform 1 and the paper-feed 2 clamping Equations of The Second Kind sheet medium materials 6 smooth scanning means that pass through.
In sum, the utility model scanning means is by near the spring constant of the first elastic component 3 of the reference edge spring constant greater than the second elastic component 4 of the other end, when the Equations of The Second Kind sheet medium materials 6 that thickness is thicker passed through, Equations of The Second Kind sheet medium materials 6 were away from the equalising torque of the fulcrum both sides of the inferior horn of reference edge; Perhaps the first elastic component 3 strength of putting on scanning platform 1 equals the strength that the second elastic component 4 puts on scanning platform 1, by near the first elastic component 3 of reference edge from the distance of reference edge less than the distance of the second elastic component 4 distances with respect to the second end of reference edge, the first elastic component 3 directly applies a strength in scanning platform 1, make scanning platform 1 and paper-feed 2 clamp that Equations of The Second Kind sheet medium materials 6 are smooth to reduce crooked generation by scanning means, thereby can effectively guarantee quality of scanning.
Claims (8)
1. scanning means, it is characterized in that: have a paper feed port, put into the sheet medium materials in this scanning means in order to guide the user, this paper feed port becomes a long groove shape, described sheet medium materials comprise first kind sheet medium materials and Equations of The Second Kind sheet medium materials, wherein the thickness of these first kind sheet medium materials of the Thickness Ratio of these Equations of The Second Kind sheet medium materials is thick, and described scanning means comprises:
The one scan platform, can read this sheet medium materials, and be a bulk, this scanning platform has the one scan direction, this scanning direction is the long side direction of this scanning platform, be the long side direction of this paper feed port, this scanning platform sequentially obtains on these sheet medium materials the wherein image of one side along this scanning direction;
One paper-feed contacts with this scanning platform, can rotate and drive these sheet medium materials and move;
One first elastic component is located at this scanning platform along an end of this scanning direction, and is applied a strength in this scanning platform, makes this scanning platform be resisted against this paper-feed;
One second elastic component, be located at this scanning platform along the other end of this scanning direction, relative with this first elastic component, and apply a strength in this scanning platform, make this scanning platform be resisted against this paper-feed, wherein, this first elastic component strength of putting on this scanning platform puts on the strength of this scanning platform greater than this second elastic component;
This first elastic component and this second elastic component put on this scanning platform strength when scanning is carried out, make this scanning platform be resisted against this paper-feed, and these sheet medium materials are driven by this paper-feed, read on these sheet medium materials the wherein image of one side by this scanning platform.
2. scanning means as claimed in claim 1, it is characterized in that: described scanning platform has for for the reference edge of sheet medium materials alignment with respect to the second end of this reference edge, and this scanning platform near the sidewall of this first elastic component as this reference edge for this sheet medium materials alignment.
3. scanning means as claimed in claim 2, it is characterized in that: described the first elastic component and described the second elastic component are spring, and the spring constant of described the first elastic component is greater than the spring constant of described the second elastic component.
4. scanning means as claimed in claim 3, it is characterized in that: the spring wire diameter of described the first elastic component is greater than the spring wire diameter of described the second elastic component.
5. scanning means as claimed in claim 3, it is characterized in that: the spring outer diameter of described the first elastic component is less than the spring outer diameter of described the second elastic component.
6. scanning means as claimed in claim 3, it is characterized in that: the number of active coils of described the first elastic component is greater than the number of active coils of described the second elastic component.
7. scanning means, has a paper feed port, put into the sheet medium materials in this scanning means in order to guide the user, this paper feed port becomes a long groove shape, described sheet medium materials comprise first kind sheet medium materials and Equations of The Second Kind sheet medium materials, the thickness of the described first kind sheet of the Thickness Ratio medium materials of wherein said Equations of The Second Kind sheet medium materials is thick, and described scanning means comprises:
The one scan platform, can read described sheet medium materials, and be a bulk, this scanning platform has the one scan direction, this scanning direction is the long side direction of this scanning platform, be the long side direction of this paper feed port, this scanning platform sequentially obtains on these sheet medium materials the wherein image of one side along this scanning direction;
One paper-feed contacts with this scanning platform, can rotate and drive these sheet medium materials and move;
One first elastic component is located at this scanning platform along an end of this scanning direction, and is applied a strength in this scanning platform, makes this scanning platform be resisted against this paper-feed;
One second elastic component, be located at this scanning platform along the other end of this scanning direction, relative with this first elastic component, and apply a strength in this scanning platform, make this scanning platform be resisted against this paper-feed, wherein, the strength that this first elastic component puts on this scanning platform equals the strength that this second elastic component puts on this scanning platform, scanning platform has for for the reference edge of this sheet medium materials alignment with respect to the second end of this reference edge, and with this scanning platform near the sidewall of this first elastic component as this reference edge for this sheet medium materials alignment, and the spacing of this first elastic component and this reference edge is less than this second elastic component and with respect to the distance of this second end of this reference edge;
This first elastic component and this second elastic component put on this scanning platform strength when scanning is carried out, make this scanning platform be resisted against this paper-feed, and these sheet medium materials are driven by this paper-feed, read on these sheet medium materials the wherein image of one side by this scanning platform.
8. scanning means as claimed in claim 7, it is characterized in that: described the first elastic component and the second elastic component are spring, and the spring constant of described the first elastic component equals the spring constant of described the second elastic component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220574840.5U CN202889472U (en) | 2012-11-02 | 2012-11-02 | Scanning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220574840.5U CN202889472U (en) | 2012-11-02 | 2012-11-02 | Scanning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202889472U true CN202889472U (en) | 2013-04-17 |
Family
ID=48080857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220574840.5U Expired - Fee Related CN202889472U (en) | 2012-11-02 | 2012-11-02 | Scanning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202889472U (en) |
-
2012
- 2012-11-02 CN CN201220574840.5U patent/CN202889472U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130417 Termination date: 20211102 |