CN1822632A - Scanner that can fix documents to be scanned - Google Patents

Abstract

A scanner capable of fixing a document to be scanned comprises: a light-transmitting platform for placing a document; a light source disposed above the light-transmitting platform for emitting light; a fixing device disposed between the light source and the light-transmitting platform, comprising a positioning mechanism for limiting the displacement of the document in a direction perpendicular to the light-transmitting platform, and a clamping mechanism for limiting the displacement of the document in a direction perpendicular to the light-transmitting platform; and a scanning module disposed below the light-transmitting platform for receiving the light emitted by the light source and penetrating the document and generating a corresponding sensing signal.

Description

Scanner that can fix documents to be scanned

technical field

The invention relates to a scanner, in particular to a scanner capable of fixing documents to be scanned.

Background technique

A scanner is a very common computer peripheral product, which can be used to scan an actual flat file and generate corresponding data. The scanner can also be used to convert images or media data such as photos, etc. Modified digitized format data. In addition, it can also provide some additional functions, such as the scanner can fax the image data to other fax devices through the telephone line, or connect to a network to send the image data in the form of electronic mail (e-mail) To other people, or realize the function of copying by connecting a printer, and also put the converted digital data on the Internet for multiple people to use. The transmissive scanner in the optical scanner is used to scan transparent documents, such as transparencies, slides, negatives, etc. The penetrating scanner projects a light through the transparent document to be scanned, so that the image on the transparent document can be converted into data in digital electronic form by the scanner.

Please refer to FIG. 1 and FIG. 2 , FIG. 1 is a schematic diagram of a scanner 10 in the prior art, and FIG. 2 is a schematic side view of the scanner 10 scanning a transparent document. The main body of the scanner 10 is covered by a casing 12, and a light-transmitting platform 14 is provided on the casing 12 for placing documents to be scanned. The main body includes a slide rail 16 and a scanning module 18, the slide rail 16 is fixed in the casing 12 along the front and back direction of the scanner 10 (ie, the direction of arrow A), and the scanning module 18 is slidably arranged on the slide The track 16 is used for receiving light emitted by a light source 20 and penetrating a document 22 to generate corresponding sensing signals. When scanning a transparent file 22, an auxiliary frame 24 can be used to hold the file 22 if necessary. There is an opening 26 on the auxiliary frame 24 to allow light to pass through, while other parts on the auxiliary frame 24 are light-tight. The opening 26 of the auxiliary frame 24 corresponds to the position of the document 22 . As shown in FIG. 2 , when a document 22 is to be scanned, the document 22 can be placed at the position of the opening 26, and the light source 20 is covered on the auxiliary frame 24, so that the light emitted by the light source 20 can pass through the transparent document 22, The opening 26 and the light-transmitting platform 14 are incident into the scanning module 18, and the incident light is converted into electronic image data by the scanning module 18.

However, if the scanning module 18 is a contact image sensor (contact image sensor, CIS) with a shallow scanning depth of field, then when scanning the document 22, the document 22 needs to be closely attached to the surface of the light-transmitting platform 14 to ensure that the document 22 However, the design of the auxiliary frame 24 of the prior art scanner 10 only provides the function of placing the document 22 in the opening 26 of the auxiliary frame 24, and fails to effectively attach the document 22 to the light-transmitting platform 14. On the surface; moreover, if the size of the opening 26 does not match the size of the document 22, then when the light source 20 covers the auxiliary frame 24, the document 22 will be displaced in the opening 26 of the auxiliary frame 24, affect the scan quality.

Contents of the invention

The present invention provides a scanner capable of fixing documents to be scanned to solve the above problems.

The invention discloses a scanner capable of fixing documents to be scanned, which includes a light-transmitting platform for placing a document; a light source arranged above the light-transmitting platform for emitting light; a fixing device, the Between the light source and the light-transmitting platform, it includes a positioning mechanism, the positioning mechanism includes a first plug, used to engage with the first hole of the document, and the first plug can be positioned on the first plug moving in the direction of engagement with the first hole of the document, and a first elastic element connected to the first plug for providing an elastic force parallel to the direction of engagement of the first plug and the first hole to the The first plug and a clamping mechanism are used to limit the displacement of the document in a direction perpendicular to the engagement direction between the first plug and the first hole; and a scanning module is arranged under the light-transmitting platform for use to receive the light emitted by the light source and penetrate the document, and generate corresponding sensing signals.

Description of drawings

FIG. 1 is a schematic diagram of a prior art scanner.

FIG. 2 is a schematic side view of a prior art scanner scanning a transparent document.

Fig. 3 is a diagram showing relative positions of components of the scanner of the present invention.

Fig. 4 is a schematic diagram of the fixing device according to the first embodiment of the present invention.

Fig. 5 is a schematic diagram of a fixing device fixing a document according to the first embodiment of the present invention.

Fig. 6 is a schematic diagram of the fixing device fixing the file when the file is in the scanning state according to the first embodiment of the present invention.

Fig. 7 is a schematic diagram of a fixing device according to a second embodiment of the present invention.

Fig. 8 is a schematic diagram of a fixing device fixing a document according to the second embodiment of the present invention.

FIG. 9 is a schematic diagram of a fixing device fixing a file when the file is in the scanning state according to the second embodiment of the present invention.

Fig. 10 is a schematic diagram of a fixing device according to a third embodiment of the present invention.

Fig. 11 is a schematic diagram of a fixing device fixing a document according to a third embodiment of the present invention.

FIG. 12 is a schematic diagram of a document carrier carrying documents according to a fourth embodiment of the present invention.

Fig. 13 is a schematic diagram of a fixing device fixing a file according to a fourth embodiment of the present invention.

Explanation of reference signs

10 scanners

12 Shell

14 Transparent platform

16 rails

18 scanning module

20 light sources

22 files

24 auxiliary frame

26 openings

30 scanners

32 Shell

34 Transparent platform

36 rails

38 scanning module

40 light sources

42 files

43 glass

44 Fixtures

44a Fixtures

44b Fixtures

44c Fixtures

46 positioning mechanism

48a, 48b first support

50a, 50b first opening

52a, 52b first plug

54a, 54b first elastic element

56 clamping mechanism

58a, 58b two second brackets

60a, 60b second opening

62a, 62b Second plug

64a, 64b second elastic element

66a, 66b first hole

68a, 68b Second hole

70 clamping mechanism

72a, 72b third support

74a, 74b third plug

76a, 76b third elastic element

78a, 78b third hole

79 clamping mechanism

80a, 80b baffle

82 file carrier

84a, 84b Fourth plug

86a, 86b fourth hole

Detailed ways

Please refer to FIG. 3 . FIG. 3 is a relative location diagram of components of a scanner 30 of the present invention. The main body of the scanner 30 is covered by a casing 32, and a light-transmitting platform 34 is provided on the casing 32 for placing documents to be scanned. The casing 32 includes a sliding rail 36 and a scanning module 38, the sliding rail 36 is fixed in the casing 32 along the front and rear directions of the scanner 30 (ie, the direction of arrow A), and the scanning module 38 can be a contact image The sensor (contact image sensor, CIS) is arranged on the slide rail 36 in a slidable manner, and is used to receive a light emitted from a light source 40 and penetrate a document 42 to generate a corresponding sensing signal, wherein The light source 40 can be a transparent scanning adapter (transparentmedia adapter, TMA), or the light board of a plane light source, and the light source 40 includes a glass 43, is used for pressing down the document 42 so that the document is attached to the light-transmitting platform 34; and the document 42 is A transparent object, such as negatives, slides, or transparencies. The scanner also includes a fixing device 44 disposed between the light source 40 and the light-transmitting platform 34 for fixing the document 42 so that the document 42 can be closely attached to the light-transmitting platform 34 to increase the scanning quality of the document 42 .

Please refer to FIG. 4 , which is a schematic diagram of a fixing device 44 a according to a first embodiment of the present invention. The fixing device 44a includes a positioning mechanism 46, which includes two first brackets 48a, 48b on which two first openings 50a, 50b are formed. The positioning mechanism 46 also includes two first plugs 52a, 52b, wherein the two first openings 50a, 50b can respectively be used to accommodate the two first plugs 52a, 52b, and the two first elastic elements 54a, 54b, They are respectively connected to the two first plugs 52a, 52b and installed in the two first brackets 48a, 48b respectively. The fixing device 44a also includes a clamping mechanism 56, which includes two second brackets 58a, 58b on which are provided two second openings 60a, 60b. The clamping mechanism 56 also includes two second plugs 62a, 62b, wherein the two second openings 60a, 60b can respectively be used to accommodate the two second plugs 62a, 62b, and the two second elastic elements 64a, 64b , respectively connected to the two second plugs 62a, 62b and respectively installed in the two second brackets 58a, 58b. The two first elastic elements 54a, 54b and the two second elastic elements 64a, 64b can be spring structures.

It can be seen from the figure that since the diameters of the two first openings 50a, 50b are equivalent to the outer diameters of the two first plugs 52a, 52b, the two first plugs connected to the two first elastic elements 54a, 54b The plugs 52a, 52b can just pass through the two first openings 50a, 50b of the two first brackets 48a, 48b, and can only move up and down (that is, the movement in the arrow X direction), while the two first elastic elements 54a, 54b can provide elastic force in the X direction to the two first plugs 52a, 52b; in addition, since the apertures of the two second openings 60a, 60b are slightly larger than the apertures of the two first openings 50a, 50b, and the two The aperture of the second opening 60a, 60b is slightly larger than the outer diameter of the two second plugs 62a, 62b, so the two second plugs 62a, 62b connected to the two second elastic elements 64a, 64b can pass through the two second plugs 62a, 62b. The two second openings 60a, 60b of the second bracket 58a, 58b can move up, down, left, and right (that is, the movement of the arrows X and Y directions), and the two second elastic elements 64a, 64b can provide a spring parallel to X. The spring force in the Y direction and the Y direction reaches the two second plugs 62a, 62b. The two first plugs 52a, 52b are made of flexible material, so they can bend and deform in the two second openings 60a, 60b.

Please refer to FIG. 5 . FIG. 5 is a schematic diagram of the fixing device 44 a fixing the document 42 according to the first embodiment of the present invention. Both sides of the file 42 include a plurality of spaced holes. Wherein the two first holes 66a, 66b, and the two second holes 68a, 68b can be connected with the two first plugs 52a, 52b of the positioning mechanism 46 and the two second plugs 62a, 52b of the clamping mechanism 56 respectively. 62b are engaged to fix the document 42 on the fixing device 44a. Furthermore, in terms of mechanism design, the distance between the first plug 52a and the second plug 62a can be greater than the distance between the first hole 66a and the second hole 68a of the file 42, so if the file 42 is to be fixed on the fixing device 44a At this time, the two first plugs 52a, 52b of the positioning mechanism 46 can be engaged with the two first holes 66a, 66b of the document 42, and then the two second plugs 62a, 66b of the clamping mechanism 56 62b flexes and deforms in the Y direction so that the two second holes 68a, 68b and the two second plugs 62a, 62b are tightly engaged with each other, that is, at this time, the second plugs 62a, 62b are constrained in the Y direction. The file 42 is displaced to achieve the effect of clamping the file 42.

Please refer to FIG. 6 . FIG. 6 is a schematic diagram of the fixing device 44 a fixing the document 42 when the document 42 is in the scanning state according to the first embodiment of the present invention. When the document 42 is in the scanning state, due to the effect of gravity, the glass 43 presses the document 42 so that it is closely attached to the light-transmitting platform 34. The two plugs 62a, 62b are also pressed by the light-transmitting platform 34 and retracted into the two first brackets 48a, 48b and the two second brackets 58a, 58b, so that the document 42 and the scanning module 38 can be shortened ( (not shown in the figure) between the depth of field, and because the two first elastic elements 54a, 54b can provide the elastic force in the engaging direction (X direction) of the two first plugs 52a, 52b, and the two second elastic elements 64a , 64b can provide the elastic force of the two second plugs 62a, 62b in the engaging direction (X direction) and perpendicular to the engaging direction (Y direction), so when the light source 40 is removed from the light-transmitting platform 34, due to the two second One plug 52a, 52b and two second plugs 62a, 62b are no longer pressed on the light-transmitting platform 34, so the two first brackets 48a, 48b and the two second brackets 58a, 58b can be ejected by elastic force, And reach the effect of fixing file 42.

Please refer to FIG. 7. FIG. 7 is a schematic diagram of a fixing device 44b according to a second embodiment of the present invention. In this embodiment, elements with the same reference numerals as those in the previous embodiment have the same structure and function. The fixing device 44b also includes a positioning mechanism 46, which includes two first brackets 48a, 48b on which two first openings 50a, 50b are defined. The positioning mechanism 46 also includes two first plugs 52a, 52b, wherein the two first openings 50a, 50b can respectively be used to accommodate the two first plugs 52a, 52b, and the two first elastic elements 54a, 54b, They are respectively connected to the two first plugs 52a, 52b and installed in the two first brackets 48a, 48b respectively. Same as the previous embodiment, the apertures of the two first openings 50a, 50b are equivalent to the outer diameters of the two first plugs 52a, 52b, so the two first plugs connected to the two first elastic elements 54a, 54b 52a, 52b can just pass through the two first openings 50a, 50b of the two first brackets 48a, 48b, and can only move up and down (that is, the movement in the arrow X direction), while the two first elastic elements 54a, The 54b can provide elastic force in the X direction to the two first plugs 52a, 52b.

The fixing device 44a also includes a clamping mechanism 70, including two third brackets 72a, 72b, two third plugs 74a, 74b, and two third elastic elements 76a, 76b, respectively connected to the two third plugs. The bolts 74a, 74b are installed in the two third brackets 72a, 72b respectively. The two third elastic elements 76a, 76b can be spring structures. The two third plugs 74a, 74b can move up, down, left, and right (that is, the movement of the arrows in the X and Y directions), and the two third elastic elements 76a, 76b can provide elastic forces parallel to the X and Y directions to the two A third plug 74a, 74b.

Please refer to FIG. 8 . FIG. 8 is a schematic diagram of a fixing device 44 b fixing a document 42 according to a second embodiment of the present invention. The two first plugs 52a, 52b of the positioning mechanism 46 can be engaged with the two first holes 66a, 66b of the document 42, and the two third plugs 74a, 74b of the clamping mechanism 70 can be engaged with the two first holes 66a, 66b of the document 42. The two third holes 78a, 78b are engaged to fix the file 42 on the fixing device 44b. When wanting to put the document 42 into the fixing device 44b, the two first plugs 52a, 52b of the positioning mechanism 46 can be engaged with the two first holes 66a, 66b of the document 42, and then the third plug can be inserted into the fixing device 44b. 74a, 74b are engaged with the third holes 78a, 78b. The third plugs 74a, 74b can elastically move left and right in the Y direction to engage with the third holes 78a, 78b. The elastic restoring force of the third elastic elements 76a, 76b will make the third plugs 74a, 74b constrain the displacement of the document 42 in the Y direction, thereby achieving the effect of clamping the document 42 .

Please refer to FIG. 9 . FIG. 9 is a schematic diagram of the fixing device 44 b fixing the file 42 when the file 42 is in the scanning state. When the document 42 is in the scanning state, due to gravity, the glass 43 of the light source 40 will press the document 42 so that it is closely attached to the light-transmitting platform 34. At this time, the two first plugs 52a, 52a of the fixing device 44b, 52b and the two third plugs 74a, 74b will be pressed on the light-transmitting platform 34, and the two first plugs 52a, 52b will retract into the two first brackets 48a, 48b. As for the two third plugs 74a, 74b are similar in structure to cantilever beams (cantilever), so they will also be retracted into the third holes 78a, 78b under the pressure of the light-transmitting platform 34 at this time, so that the document 42 and the scanning module 38 can be shortened ( Depth of field between not shown). In addition, since the two first elastic elements 54a, 54b can provide elastic forces in the engaging direction (X direction) of the two first plugs 52a, 52b, and the two third elastic elements 76a, 76b can provide elastic forces parallel to and perpendicular to the card. direction (X direction and Y direction), so when the light source 40 is removed, because the two first plugs 52a, 52b and the two second plugs 62a, 62b are no longer pressed on the light-transmitting platform 34, it can The restoring force of the spring pops out the two first holes 66a, 66b and the two third holes 78a, 78b, thereby achieving the effect of fixing the file 42 .

Please refer to FIG. 10 . FIG. 10 is a schematic diagram of a fixing device 44c according to a third embodiment of the present invention. In this embodiment, elements with the same reference numerals as those in the previous embodiment have the same structure and function. The fixing device 44c also includes a positioning mechanism 46, which includes two first brackets 48a, 48b on which two first openings 50a, 50b are defined. The positioning mechanism 46 also includes two first plugs 52a, 52b, wherein the two first openings 50a, 50b can respectively be used to accommodate the two first plugs 52a, 52b, and the two first elastic elements 54a, 54b, They are respectively connected to the two first plugs 52a, 52b and installed in the two first brackets 48a, 48b respectively. Same as the previous embodiment, the apertures of the two first openings 50a, 50b are equivalent to the outer diameters of the two first plugs 52a, 52b, so the two first plugs connected to the two first elastic elements 54a, 54b 52a, 52b can just pass through the two first openings 50a, 50b of the two first brackets 48a, 48b, and can only move up and down in the engaging direction (that is, the movement in the direction of the arrow X), while the two first elastic The elements 54a, 54b can provide elastic force in the X direction to the two first plugs 52a, 52b. The fixing device 44a also includes a clamping mechanism 79 including two stoppers 80a, 80b for pressing down and clamping the document 42 (not shown in the figure) to limit the displacement of the document 42 in the X and Y directions.

Please refer to FIG. 11 . FIG. 11 is a schematic diagram of a fixing device 44c fixing a document 42 according to a third embodiment of the present invention. After the file 42 passes through the two baffle plates 80a, 80b, the two first plugs 52a, 52b of the positioning mechanism 46 are engaged with the two first holes 66a, 66b of the file 42, and then the two first holes 66a, 66b are pressed down. Each baffle plate 80a, 80b makes the file 42 close to the glass 43, so as to achieve the effect of clamping the file 42.

If the document 42 is in the form of a single negative film, then a carrier can be designed to carry the single negative film and then fixed by a fixing device. Please refer to FIG. 12 . FIG. 12 is a schematic view of a document carrier 82 carrying documents 42 according to a fourth embodiment of the present invention. The file carrier 82 includes two fourth plugs 84 a, 84 b for engaging with the two fourth holes 86 a, 86 b of the file 42 to carry the file 42 . Please refer to FIG. 13 . FIG. 13 is a schematic diagram of a fixing device 44c fixing a document 42 according to a fourth embodiment of the present invention. Firstly, the baffle plate 80a can be lifted, and the document 42 can pass through the bottom of the baffle plate 80a after being combined with the document carrier 82, and then the two first plugs 52a, 52b of the positioning mechanism 46 can be connected with the two first holes of the document 42. 66a, 66b are engaged with each other, and since the baffle plate 80a has not yet pressed down on the document carrier 82, the document 42 can still be moved left and right so that the two first holes 66a, 66b can be accurately matched with the first plugs 52a, 52b. The first plugs 52 a , 52 b are engaged with the two first holes 66 a , 66 b and then the blocking plate 80 a is pressed down to clamp the document carrier 82 to achieve the effect of fixing the document 42 .

Compared with the scanner file fixing device of the prior art, the scanner file fixing device of the present invention can definitely fix the document to be scanned (such as a negative) on the light-transmitting platform, and the document to be scanned is parallel and perpendicular to the transparent platform. The direction of the optical platform is bound by the fixing device of the present invention, so it can improve the problem of displacement of the document to be scanned when the upper cover of the scanner is opened and closed in the prior art; in addition, the fixing device of the present invention can improve the existing technology When the fixing device clamps the document, there will be a certain distance between the document and the light-transmitting platform, which will deepen the scanning depth of field. Therefore, the fixing device of the present invention can effectively improve the scanning quality of the scanner.

The above descriptions are only preferred embodiments of the present invention, and all equivalent changes and modifications made without departing from the spirit and scope of the present invention fall within the scope defined by the appended claims.

Claims (20)

1. can fix the scanner of desiring scanning document for one kind, it comprises:

One printing opacity platform is used for placing a file;

One light source is arranged at the top of described printing opacity platform, is used for emitting beam;

One fixture, be arranged between described light source and described printing opacity platform, it comprises a location mechanism, is used for limiting described file in the displacement perpendicular to described printing opacity platform direction, and a clamp system, be used for limiting described file in displacement perpendicular to described printing opacity platform direction; And

The one scan module is arranged at the below of described printing opacity platform, is used for receiving the light that is sent and penetrated described file by described light source, and produces corresponding sense signals.

2. scanner as claimed in claim 1, wherein said detent mechanism comprise one first plug, be used for fastening with first hole of described file, and described first plug can engage the direction motion in described first plug with first hole of described file; And one first flexible member, be connected in described first plug, be used to provide one and be parallel to described first plug and engage the elastic force of direction with described first hole to described first plug.

3. scanner as claimed in claim 2, wherein said clamp system are used for limiting described file in the displacement that engages direction perpendicular to described first plug with described first hole.

4. scanner as claimed in claim 1, wherein said detent mechanism also comprise one first support, which is provided with one first opening, are used for holding described first plug, and described first flexible member is installed in described first support.

5. scanner as claimed in claim 1, wherein said clamp system comprises:

One second plug is used for fastening with second hole of described file, and described second plug can engage the direction motion in being parallel and perpendicular to described second plug with described second hole;

One second flexible member is connected in described second plug, is used to provide to be parallel and perpendicular to described second plug engages direction with described second hole elastic force to described second plug; And

One second support, which is provided with one second opening, be used for holding described second plug, so that described second plug can limit described file in the displacement that engages direction perpendicular to described second plug with described second hole, described second flexible member is installed in described second support.

6. scanner as claimed in claim 5, the aperture of wherein said second opening be greater than the aperture of described first opening,

7. scanner as claimed in claim 5, wherein said second flexible member is a spring.

8. scanner as claimed in claim 5, the distance of wherein said first plug and described second plug is greater than the distance at the second hole center of the first hole center of described file and described file.

9. scanner as claimed in claim 5, wherein said second plug is made up of flexible materials.

10. scanner as claimed in claim 1, wherein said clamp system comprises:

One the 3rd plug is used for fastening with the 3rd hole of described file, described the 3rd plug can be in described the 3rd hole in vertical and be parallel to the direction that described first plug engages with described first hole and move; And

One the 3rd flexible member, be connected in described the 3rd plug, be used to provide vertical be parallel to extremely described the 3rd plug of described first plug engages direction with described first hole elastic force, to limit described file in the displacement that engages direction perpendicular to described first plug with described first hole.

11. scanner scans device as claimed in claim 10, wherein said the 3rd flexible member is a spring.

12. scanner as claimed in claim 11, wherein when described the 3rd flexible member is in natural length, described the 3rd plug away from the distance of end of described first plug and described first plug distance less than the 3rd hole center of the first hole center of described file and described file.

13. scanner as claimed in claim 1, wherein said clamp system comprise two baffle plates, are used for pressing down described file, engage the displacement of direction to limit described file with described first hole in being parallel and perpendicular to described first plug.

14. scanner as claimed in claim 1, wherein said clamp system comprises a file carrier, it comprises one the 4th plug, be used for fastening with the 4th hole of described file, an and baffle plate, be used for pressing down described file carrier, engage the displacement of direction with described first hole in being parallel and perpendicular to described first plug to limit described file.

15. scanner as claimed in claim 1, wherein said light source comprises a glass, is used for pressing down described file so that described file is adjacent to described printing opacity platform.

16. scanner as claimed in claim 1, wherein said first flexible member is a spring.

17. scanner as claimed in claim 1, wherein said scan module are a contact image sensor.

18. scanner as claimed in claim 1, wherein said file are an egative film.

19. scanner as claimed in claim 1, wherein said light source are a transparent scanning adapter.

20. scanner as claimed in claim 1, wherein said light source are a tabula rasa.

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