CN101330562B - Auto-feed scanner with movable paper guide ribs - Google Patents

Abstract

The invention discloses an automatic paper feeding scanner with a movable paper guide rib device, which comprises a platform type scanner and an automatic paper feeder. The shell of the platform scanner is internally provided with a movable paper guide rib device, and the movable paper guide rib device comprises a paper guide rib device, at least one groove, a plurality of elastic bodies and a fixing sheet. The automatic paper feeding scanner with the movable paper guide rib device provided by the invention can prevent the large-size scanned file from being damaged by the up-and-down movement of the paper guide rib device.

Description

Auto-feed scanner with movable paper guide ribs

technical field

The invention relates to an automatic paper-feeding scanner, in particular to an automatic paper-feeding scanner with a movable paper-guiding rib device.

Background technique

The automatic paper feeding scanner has been widely used by users because of its automatic paper feeding function. The automatic document feeding scanner generally includes an automatic document feeding device and a flatbed scanner. The automatic document feeder is placed on the glass platform of the flatbed scanner. When performing document-feed scanning, the document is transported by the automatic document feeder to be scanned. When performing flat-bed scanning, the document is placed on the glass platform and is scanned.

Please refer to FIG. 1 a , which is a schematic diagram of a known automatic paper feeding scanner. FIG. 1 a shows a flatbed scanner 101 , a glass platform 102 , a scanning window 103 and a rib 104 for sheet-fed scanning in a known automatic sheet-feed scanner 100 . The convex rib 104 is disposed on one side of the scanning window 103 and is used for guiding documents fed by an automatic document feeder (not shown) to pass through the scanning window 103 to be scanned. Known automatic sheet-feeding scanners have the following defects: when performing flatbed scanning, if the size of the scanned document P, such as a map, is greater than the size of the glass platform 102, when the scanned document P is placed on the glass platform 102 , the document P will cover the convex rib 104. Before scanning, the user needs to cover the glass platform 102 with an automatic document feeder (not shown in the figure), which is equivalent to the function of the upper cover, to perform flat-bed scanning. Since the convex rib 104 is a convex structure, when the automatic document feeder is covered on the glass platform 102, a downward force will be applied to the document P, causing the document P to be penetrated by the convex rib 104 due to the force, thus Corruption is caused to file P, as shown in Figure 1b.

Therefore, there is a need for an improved automatic paper-feeding scanner to improve the above problems.

Contents of the invention

The purpose of the present invention is to provide an automatic paper-feeding scanner, which has a movable paper-guiding rib device, so as to avoid damaging large-sized scanned documents.

In a preferred embodiment, the present invention provides an automatic paper-feeding scanner with a movable paper-guiding rib device, the automatic paper-feeding scanner includes a flatbed scanner and an automatic document feeder, and the movable paper-guiding rib The device is set in the housing of the flatbed scanner, wherein the movable paper guide rib device includes:

Paper guiding rib device for guiding the documents conveyed by the automatic document feeder through the flatbed scanner;

At least one groove is arranged on the shell;

A plurality of elastic bodies are used to make the paper guide rib device move up and down relative to the housing in the groove; and

The fixing piece is connected with the shell and is used for fixing multiple elastic bodies thereon.

In a preferred embodiment, at least one groove is a single elongated groove, and the paper guiding rib device includes a paper guiding rib plate and a row of convex ribs, and the paper guiding rib plate and a row of convex ribs are integrally formed.

In a preferred embodiment, each side of the paper guiding rib plate has a fixing ring, and the two side walls of the elongated groove each have a protruding post respectively passing through the fixing ring.

In a preferred embodiment, the paper guide rib device includes a connecting rod and a plurality of convex ribs connected in series through the connecting rod, and at least one groove includes a plurality of grooves, and each convex rib is in each concave Move up and down in the slot.

In a preferred embodiment, the two ends of the connecting rod are fixed to the housing, and a plurality of elastic bodies are arranged on the two ends of the connecting rod of the connecting rod type paper guide rib and abut against the fixed piece, so that the connecting rod type paper guide rib The rib moves up and down relative to the housing.

In a preferred embodiment, the paper guiding rib device includes a plurality of convex ribs, and at least one groove includes a plurality of grooves.

In a preferred embodiment, each convex rib has a convex column on both sides, and each side wall of each groove has an engaging recess for accommodating the convex column, and one end of each convex rib It is fixed on the shell, and the other end of each convex rib is pressed against by the elastic body to move up and down relative to the shell.

In a preferred embodiment, the plurality of elastic bodies are a plurality of springs.

In a preferred embodiment, the plurality of elastic bodies are a plurality of elastic sheets.

The automatic paper-feeding scanner with movable paper-guiding rib device provided by the present invention has the following beneficial effects by moving the paper-guiding rib device up and down relative to the shell of the platform scanner: avoiding damage to large-sized documents and keeping them Integrity; low cost and simple structure; the movable paper guide rib device is convenient to use and easy to repair or troubleshoot.

Description of drawings

Figures 1a and 1b are structural schematic diagrams of a paper guide rib device of a known automatic paper feeding scanner;

Fig. 2 is a schematic structural view of the movable paper guide rib device of the present invention;

3a, 3b, 3c, 3d, 3e are structural schematic diagrams of the first embodiment of the movable paper guide rib device of the present invention;

4a, 4b, 4c are schematic structural views of the second embodiment of the movable paper guide rib device of the present invention;

5a and 5b are schematic structural views of the third embodiment of the movable paper guiding rib device of the present invention.

Wherein, the reference signs are explained as follows:

100 Automatic paper feeding scanner 207 Post

101. F Platform Scanner 208 Engagement Groove

102. G1 glass platform 307 paper guide rib plate

103. G2 scanning window 308 fixing ring

104 Convex Rib 309 Protruding Column

202, 302, 402 shell 407 connecting rod

203, 303, 403 groove 408 connecting rod groove

204, 304, 404 Elastomer P Large size files

205, 305 Fixed sheet R Paper guide rib device

206, 306, 406 convex rib

Detailed ways

Please refer to FIG. 2 , which is a structural diagram of a preferred embodiment of the movable paper guiding rib device of the present invention. The flatbed scanner F has a glass platform G1 for use in flatbed scanning, and the scanning window G2 is used for scanning documents fed by the automatic document feeder. In addition, the paper guiding rib device R of the present invention is arranged on one side of the scanning window G2, and the paper guiding rib device R can move up and down. In detail, when using the automatic document feeder to feed documents for scanning, the paper guide rib device R can help the document enter the scanning window G2 smoothly for scanning. In the case of paper-fed scanning, the paper guide rib device R does not It can move up/down, and its function is the same as that of the known fixed paper guide rib device. When using the flatbed scanner F to scan large-sized documents, the user will cover the automatic document feeder, which is equivalent to the function of the upper cover, on the glass platform G1. At this time, the automatic document feeder will give the paper guide rib device R a downward pressure. , since the paper guide rib device R is movable, the paper guide rib device R will move downward based on the downward pressure, so the large-sized document located on the paper guide rib device R will not be moved by the paper guide rib device R pierces, thus keeping the file intact.

Various embodiments of the automatic paper-feeding scanner with the movable paper-guiding rib device of the present invention are described below.

Please refer to FIG. 3 , which is a structural diagram of the first embodiment of the movable paper guiding rib device of the present invention. The groove in the movable paper guide rib device of the present invention has only side walls and no base, and the fixed piece at the bottom of the groove is used as the base of the groove, and the fixed piece is fixed on the flatbed scanner. The back of the housing, so that the elastic body can be arranged on the fixed piece and against the rib, which can be clearly seen from the following illustration. Please refer to FIG. 3 a , which is an exploded structure diagram of the first elastic body of the partially movable paper guiding rib device according to the first embodiment of the present invention. In FIG. 3 a, there are multiple grooves 203 on the housing 202 of the flatbed scanner (only one groove is provided as a representative for illustration in the figure), and the multiple grooves 203 correspond to the same number of ribs 206, and Each rib 206 passes through a groove 203 . Both sides of the protruding rib 206 are provided with a protruding post 207, and the protruding post 207 is used to engage with the engaging groove 208 provided on the two side walls of the groove 203, as shown in Figure 3e, and Figure 3e is from a platform It is a schematic structural diagram of the scanner looking up from the bottom of the casing, and the fixing piece and the elastic body are not marked in the figure.

In the first embodiment shown in FIG. 3 a and FIG. 3 b , the combination of the protrusion 207 and the engaging groove 208 enables one end of the protrusion 206 to be fixed on the housing 202 . In the first embodiment, the elastic body 204 is an elastic piece (first elastic body), and the elastic piece is integrally formed with the fixing piece 205 , wherein the fixing piece 205 is connected with the casing 202 . The first elastic body 204 abuts against the other end of the convex rib 206, so that when the convex rib 206 is subjected to downward pressure, the protrusion 207 on the convex rib 206 rotates relative to the engagement groove 208 so that the convex rib 206 passes through the groove The notch of the groove 203 moves downward, so the rib 206 presses the first elastic body 204 to move the rib 206 downward to a position below the notch of the groove 203 , as shown in FIG. 3 b . Please refer to FIG. 3c and FIG. 3d , which are schematic diagrams of the second elastic body of the partially movable paper guiding rib device according to the first embodiment of the present invention. Its working condition is similar to that of the movable paper guide rib device using the first elastic body, the difference is that the elastic body 204 is replaced by a shrapnel (first elastic body) to a more common spring (second elastic body), and the spring is arranged on the fixed piece 205 and is not integrally formed with the fixed piece 205, the rest of the structure is exactly the same as that of the movable paper guide rib device using the first elastic body, regardless of whether it is the movable paper guide rib device using the first elastic body or the second elastic body are classified as the first embodiment.

Please refer to FIG. 4 , which is a structural diagram of the second embodiment of the movable paper guiding rib device of the present invention. It can be clearly seen from Fig. 4a that the paper guide rib device of the second embodiment is a paper guide rib plate 307, and a fixing ring 308 is respectively arranged on both sides of the paper guide rib plate 307, for connecting with the side wall of the elongated groove 303 Combining with the protruding column 309, a fixed piece 305 is arranged at the bottom of the elongated groove 303 to connect with the housing 302 of the flatbed scanner, and a plurality of elastic bodies 304 are arranged on the fixed piece 305 and abut against the paper guide rib plate 307 At the bottom, when the convex rib 306 on the paper guide rib plate 307 is under downward pressure, the paper guide rib plate 307 can move up and down relative to the elongated groove 303 through the rotation of the fixed ring 308 relative to the protruding column 309, As shown in FIG. 4b, FIG. 4b is a schematic side view of the movable paper guide rib device which does not move downwards according to the second embodiment of the present invention. When the automatic document feeding scanner intends to scan a large-size document, the large-size document is placed on the flatbed scanner and the large-size document is covered on the rib 306. When scanning starts, the automatic document feeder that replaces the upper cover is pressed down Closed and in contact with the flatbed scanner, at this time the downward pressure of the automatic document feeder gives the convex rib 306 a downward pressure, so that the paper guide rib plate 307 connected to the convex rib 306 rotates relative to the protruding column 309 through its fixing ring 308 And move down, as shown in Figure 4c. Of course, the elastic body 304 of the second embodiment can also choose to use elastic pieces or springs. If elastic pieces are selected as the elastic body, the elastic pieces and the fixing piece 305 are also integrally formed.

Please refer to FIG. 5a and FIG. 5b , which are structural schematic diagrams of the third embodiment of the movable paper guiding rib device of the present invention. The paper guide rib device of the third embodiment includes a connecting rod 407 and a plurality of ribs 406 connected in series on the connecting rod 407. In FIG. 5a, each rib 406 corresponds to a groove 403 and each rib 406 Pass through the corresponding groove 403, and the two ends of the connecting rod 407 are connected with the side wall of the housing 402 under the groove 403, wherein the two side walls of the housing 402 are respectively provided with a connecting rod groove 408 for accommodating The connecting rod 407 is fixed to the housing 402 and the connecting rod 407 can still rotate. The connection between the connecting rod 407 and the housing 402 is shown in Figure 5b, and Figure 5b is from the bottom of the flatbed scanner Schematic diagram of the structure viewed from above and the fixed piece is not marked in this figure.

When a large-size document is to be scanned, the automatic document feeder is pressed closed to contact the large-size document placed on the flatbed scanner, and at the same time, a downward pressure is given to the convex rib 406 to compress the elastic body 404, which is opposite to each other through the connecting rod 407 Rotation is generated in the connecting rod groove 408 to make the paper guiding rib device move downward.

The special feature of the third embodiment is that if the elastic body 404 is an elastic piece, the elastic piece is arranged on the connecting rod 407, and presses down against the fixing piece connected with the housing 402, that is to say, the present embodiment The elastic piece and the fixed piece are not integrally formed, which is different from the integrally formed elastic piece and fixed piece in the first and second embodiments. If its elastic body 404 is a spring, then the spring is still arranged on the fixed piece, and the spring pushes against the connecting rod 407 so that the convex rib 406 which is located on the connecting rod 407 moves up and down synchronously with the connecting rod 407 .

The movable paper guide rib device of the present invention can move up and down relative to the housing of the platform scanner, thereby keeping large-sized documents intact, avoiding damage, and completely improving the defects of known scanning devices. The present invention is not only low in cost, but also simple in structure , quite in line with economic benefits, if the movable paper guide rib device breaks down, it is quite easy to repair or troubleshoot, and it is more convenient to use.

Finally, it should be noted that although the present invention has been described in detail with reference to preferred embodiments, the above embodiments are only used to illustrate the technical solutions of the present invention rather than limit them. Those of ordinary skill in the art should understand that the present invention can be The technical solution shall be modified or equivalently replaced without departing from the spirit and scope of the technical solution of the present invention.

Claims (9)

1. An automatic paper-feeding scanner with a movable paper-guiding rib device, the automatic paper-feeding scanner comprises a platform scanner and an automatic document feeder, it is characterized in that the movable paper-guiding rib device is arranged on In a housing of the platform scanner, the movable paper guide rib device includes: a paper guiding rib device for guiding a document conveyed by the automatic document feeder through the flatbed scanner; at least one groove formed on the housing; At least one fixing piece is fixed on the back of the casing to serve as the bottom of the groove; and At least one elastic body is arranged on the fixed piece, and the elastic body resists the paper guide rib device so that part of the paper guide rib device passes through the groove and protrudes on the housing, so that the paper guide rib device The device moves up and down relative to the housing within the groove. 2. The automatic paper-feed scanner with a movable paper guide rib device as claimed in claim 1, wherein the at least one groove is a single elongated groove, and the paper guide rib device comprises a paper guide rib A flat plate and a row of convex ribs, and the paper guiding rib flat plate and a row of convex ribs are integrally formed. 3. The automatic paper-feed scanner with movable paper guide rib device as claimed in claim 2, characterized in that, both sides of the paper guide rib plate respectively have a fixed ring, and the two sides of the elongated groove The walls each have a protruding column passing through the fixing ring respectively. 4. The automatic paper-feeding scanner with movable paper guide rib device as claimed in claim 1, characterized in that, the paper guide rib device comprises a connecting rod and a plurality of convex ribs connected in series by the connecting rod , and the at least one groove includes a plurality of grooves, and each of the protruding ribs moves up and down in each of the grooves. 5. The automatic paper feeding scanner with movable paper guide rib device as claimed in claim 4, characterized in that, the two ends of the connecting rod are fixed to the housing, and the elastic body is arranged on the connecting rod guide The two ends of the connecting rod of the paper rib abut against the fixing piece, so that the link type paper guiding rib moves up and down relative to the housing. 6. The automatic document feeding scanner with a movable paper guiding rib device as claimed in claim 1, wherein the paper guiding rib device comprises a plurality of raised ribs, and the at least one groove comprises a plurality of grooves. 7. The automatic paper-feeding scanner with movable paper-guiding rib device as claimed in claim 6, characterized in that, each of the two sides of the convex rib has a protruding post, and each of the two sides of the groove Each wall has an engaging recess for accommodating the protruding column, and one end of each protruding rib is fixed on the housing, and the other end of each protruding rib is pressed against by the elastic body to make a relative Up and down movement of the housing. 8. The automatic paper-feeding scanner with a movable paper-guiding rib device as claimed in claim 1, wherein the elastic body is a spring. 9. The automatic paper-feeding scanner with a movable paper-guiding rib device as claimed in claim 1, wherein the elastic body is an elastic piece.

Images