CN110493486B

CN110493486B - Flange structure for scanner, scanner and multifunctional machine

Info

Publication number: CN110493486B
Application number: CN201910586915.8A
Authority: CN
Inventors: 唐波炯; 姜乔; 范志国
Original assignee: Lenovo Image Tianjin Technology Co Ltd
Current assignee: Zhixiang Technology Co ltd
Priority date: 2019-06-24
Filing date: 2019-07-01
Publication date: 2020-09-01
Anticipated expiration: 2039-07-01
Also published as: CN209767636U; CN110493486A

Abstract

The invention provides a flange structure for a scanner, the scanner and a multifunctional machine, wherein the flange structure for the scanner comprises an upper cover, a lower cover, a scanning glass and an original pressing plate, the lower cover is provided with a sealing part which is at least partially arranged to protrude out of the upper surface of the scanning glass corresponding to the original taking-out side, and the sealing part is provided with a guide surface which is arranged adjacent to the outer edge of the scanning glass and a sealing surface which is matched with the original pressing plate to form single-side sealing. The sealing surface which is matched with the original pressing plate to prevent external dust and light from entering the scanner is arranged, so that the scanning quality is ensured, and the guide surface is arranged to facilitate the original to slide out from the guide surface.

Description

Flange structure for scanner, scanner and multifunctional machine

Technical Field

The invention relates to the technical field of scanners, in particular to a flange structure for a scanner, a scanner and a multifunctional machine.

Background

In a conventional scanner, an original reading stage generally includes four members, i.e., an upper cover, a lower cover, an original cover, and a glass, to form a frame structure.

As shown in fig. 1 and 2, a conventional document stage structure is provided, in which a joint edge 4 pressed on a scanning glass 2 is formed along the peripheral edge of the scanning glass 2 in a top cover 1 to form a closed scanning space by engaging the scanning glass 2, the top cover 1 and a bottom cover (not shown) together, but as is well known, a scanner has an ADF scanning and an FB scanning, and when a user is in the FB scanning, the document needs to be taken out of the scanning glass 2 after the scanning is completed, and as shown in fig. 1, a break is formed between the front end of the joint edge 4 and the upper surface of the scanning glass 2 due to the joint edge 4, which may prevent the document from being taken out normally, and even when the user applies excessive force, the blocked document may be warped or damaged at its edge.

The original carrying platform structure shown in fig. 3 is improved based on the above problem, in which the overlapped edge structure in the original taking-out direction is removed, and a receiving platform is correspondingly processed on the lower cover 3 to ensure the fixed installation of the scanning glass, but the above solution may cause a gap between the original pressing plate 5 and the upper end of the lower cover 3, and external light and dust may enter the scanning optical assembly through the gap to affect the scanning quality.

Disclosure of Invention

Therefore, in order to solve the above problems, the present invention provides a rib structure for a scanner, and a multifunctional machine.

In order to solve the above problems, the present invention provides a flange structure for a scanner, including an upper cover, a lower cover, a scanning glass, and an original cover, wherein the lower cover is provided with a sealing portion protruding from an upper surface of the scanning glass corresponding to an original removing side, and the sealing portion has a guide surface provided adjacent to an outer edge of the scanning glass and a sealing surface forming a single-side seal in cooperation with the original cover.

Further, the bottom edge of the guide surface is configured to be flush with or lower than the upper surface of the scanning glass.

Further, the guide surface is configured as a flat surface inclined in the original document taking-out direction.

Further, the guide surface is configured as a curved surface that makes a smooth transition with the original document taking-out direction.

Further, the top edge of the sealing surface abuts against or extends into the lower edge of the original pressing plate.

Furthermore, a bearing platform is formed on the bottom cover corresponding to the original document taking-out side, and one edge of the scanning glass is overlapped on the bearing platform.

Further, two outer edges of the upper cover parallel to the original document taking-out direction form overlapping edges which are pressed on the scanning glass.

The present invention also provides a scanner comprising: the rib structure for a scanner as described in any of the above.

The invention provides a multifunctional machine, comprising: the scanner described above.

The technical scheme of the invention has the following advantages:

1. the flange structure for the scanner comprises an upper cover, a lower cover, a scanning glass and an original pressing plate, wherein the lower cover is provided with a sealing part at least partially protruding from the upper surface of the scanning glass corresponding to the original taking-out side, and the sealing part is provided with a guide surface adjacent to the outer edge of the scanning glass and a sealing surface matched with the original pressing plate to form single-side sealing.

The sealing surface which is matched with the original pressing plate to prevent external dust and light from entering the scanner is arranged, so that the scanning quality is ensured, and the guide surface is arranged to facilitate the original to slide out from the guide surface.

2. In the rib structure for a scanner according to the present invention, the bottom edge of the guide surface is configured to be flush with or lower than the upper surface of the scanning glass, so as to prevent a gap from being present between the bottom edge of the guide surface and the upper surface of the scanning glass, which may hinder the removal of an original.

3. In the rib structure for a scanner in the present invention, the guide surface is configured as a flat surface inclined in the original document taking-out direction in some of the embodiments. The type of the original document in the scanning process of the user is generally a paper sheet, generally a sheet of white paper of a4, when the white paper is attached to glass, the white paper is affected by atmospheric pressure and local static electricity, has a thin thickness, and is not easy to be directly taken up by the user.

4. In the scanner flange structure of the present invention, in some of the embodiments, the guide surface is configured as a curved surface that makes a smooth transition with the original document removing direction. As described above, the original document is generally a common paper, the front end of the original document is easily warped or torn when being impacted, the curved surface has good guiding performance, and the paper as a flexible member can smoothly transit on the curved surface, so that the original document is not damaged due to excessive movement of a client when the client takes the original document.

5. In the flange structure for a scanner of the present invention, the top edge of the sealing surface abuts against the lower edge of the original cover or extends into the original cover. The dust enters the scanner through the gap, the gap is the gap between the lower cover and the original pressing plate, the top edge of the sealing surface is abutted against the lower edge of the original pressing plate or extends into the original pressing plate, the stroke of the gap can be avoided, and a better dustproof effect is achieved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic view of a scanner with overlapping edges according to the background of the present invention;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;

FIG. 3 is a schematic view of a scanner without a lap edge according to the background of the invention;

fig. 4 is a schematic structural diagram of a rib structure for a scanner in embodiment 1 of the present invention;

FIG. 5 is a cross-sectional view taken along line A-A of FIG. 4;

fig. 6 is a schematic structural diagram of a modified embodiment of the rib structure for a scanner in example 1 according to the present invention;

fig. 7 is a partially enlarged view of a seal portion in example 1 provided by the present invention;

fig. 8 is a schematic structural diagram of another modified embodiment of the rib structure for a scanner in example 1 of the present invention.

Description of the background art reference numerals:

1-covering the upper cover;

2-scanning the glass;

3-lower cover;

4-overlapping edges;

5-original pressing plate;

l-ray.

Description of the examples reference numerals:

1-covering the upper cover;

2-lower cover; 21-a sealing part; 22-a carrier table; 211-a guide surface; 212-a sealing surface;

3-scanning the glass;

4-original cover.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

Example 1

As shown in fig. 4 to 8, the flange structure for a scanner according to the present embodiment includes an upper cover 1, a lower cover 2, a scanning glass 3, and an original cover plate 4, the lower cover 2 is formed with a sealing portion 21 protruding from an upper surface of the scanning glass 3 corresponding to an original removing side, and the sealing portion 21 has a guide surface 211 provided adjacent to an outer edge of the scanning glass 3 and a sealing surface 212 forming a single-sided seal in cooperation with the original cover plate 4. The sealing surface 212 provided in the present embodiment and cooperating with the original cover 4 prevents external dust and light from entering the scanner to ensure scanning quality, and the guide surface 211 is provided to facilitate the original to slide out from the guide surface 211.

The upper cover 1 and the lower cover 2 in the embodiment are injection-molded parts, are generally made of ABS or HIPS, have the characteristic of batch processing and forming, and can improve the production efficiency.

The document taking-out side in the present embodiment is defined as follows, and a typical scanning glass 3 has a rectangular configuration, and the side of the scanning glass 3 corresponding to the right hand side of a human hand when the human is standing facing the scanner is the document taking-out side in the present embodiment. According to human body function, the right side is convenient for the right hand operation of people, and the original manuscript is convenient to take out.

In order to support the scanning glass 3, a supporting base 22 is further formed on the bottom cover 2 corresponding to the document removing side, and one edge of the scanning glass 3 is overlapped on the supporting base 22.

For protection of the scanning glass 3, a shock absorbing strip or a shock absorbing cotton may be attached to the stage 22.

In order to restrict the tilting of the scanning glass 3, both outer edges of the upper cover 1 in the present embodiment parallel to the original document taking-out direction form a joint, which is pressed against the scanning glass 3.

In order to further enhance the fixation of the scanning glass 3, a place where the overlapping edge is combined with the upper surface of the scanning glass 3 is coated with glue, double-sided tape, a pressing strip, or the like.

The following is a detailed explanation of the structure of the seal portion 21 described above:

the bottom side of the guide surface 211 in this embodiment is configured to be flush with the upper surface of the scanning glass 3, but of course, in some other embodiments, the bottom side of the guide surface 211 may be configured to be lower than the upper surface of the scanning glass 3 to prevent a gap between the bottom side of the guide surface 211 and the upper surface of the scanning glass 3 from hindering the removal of the original.

As shown in fig. 6, the guide surface 211 in this embodiment is configured as a plane inclined in the original document taking-out direction, the type of the original document in the scanning process of the user is generally a paper sheet, and is generally a white paper sheet of a page a4, which is subjected to atmospheric pressure and local electrostatic action when the white paper sheet is attached to glass, and is thin in thickness, and is not easily taken up directly by the user.

In some other embodiments, the guide surface 211 may be a curved surface that smoothly transitions with the original removing direction, such as a spherical surface structure, a saddle surface, etc. as mentioned above, the original piece is generally a commonly used paper piece, the front end of which is easy to warp or tear when receiving an impact, the curved surface has good guiding performance, and the paper piece is a flexible piece that smoothly transitions on the curved surface without damaging the original due to an excessive movement when the client removes the original.

In order to ensure the sealing effect, the top edge of the sealing surface 212 in this embodiment extends into the original cover 4, and dust enters the scanner mainly through the gap between the lower cover 2 and the original cover 4, and the top edge of the sealing surface 212 abuts against the lower edge of the original cover 4 or extends into the original cover 4, so that the stroke of the gap can be avoided, and a better dust-proof effect can be achieved.

As shown in fig. 6 and 7, as a modified embodiment, there may be a gap between the top edge of the seal surface 212 and the lower edge of the original cover 4, and this design is due to the fact that the seal portion 21 of the present invention is designed to protrude from the upper surface of the glass, which itself may prevent the entry of dust and reduce the amount of dust entering.

As another modified embodiment, as shown in fig. 8, the top edge of the seal surface 212 abuts against the lower edge of the original cover 4, which provides a good dust-proof effect.

Of course, in order to prevent the hard contact problem during the closing process, a shock-absorbing sponge may be stuck at the top edge of the seal face 212 or the lower edge of the original cover 4.

Example 2

This embodiment provides a scanner, which includes the rib structure for a scanner described in embodiment 1 above, and has all technical advantages thereof, which are not described herein again.

Example 3

The present embodiment provides a multifunction machine including the scanner in embodiment 2.

In specific implementation, the scanner in embodiment 2 is generally installed on a printer used in a matching manner, and structurally forms a multifunctional all-in-one machine.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.

Claims

1. A flange structure for a scanner comprises an upper cover (1), a lower cover (2), a scanning glass (3) and an original pressing plate (4), and is characterized in that sealing parts (21) protruding out of the upper surface of the scanning glass (3) are formed on the lower cover (2) corresponding to the original taking-out side, and each sealing part (21) is provided with a guide surface (211) adjacent to the outer edge of the scanning glass (3) and a sealing surface (212) matched with the original pressing plate (4) to form single-side sealing; the top edge of the sealing surface (212) abuts against the lower edge of the original pressing plate (4) or extends into the original pressing plate (4), and a convex edge structure is correspondingly formed on the side edge of the original pressing plate (4) facing the sealing surface (212).

2. The rib structure for a scanner according to claim 1, wherein a bottom side of the guide surface (211) is configured to be flush with an upper surface of the scanning glass (3) or lower than the upper surface of the scanning glass (3).

3. The flange structure for scanner according to claim 2, wherein the guide surface (211) is configured as a flat surface inclined in the original document taking-out direction.

4. A rib structure for a scanner according to claim 2, wherein said guide surface (211) is configured as a curved surface smoothly transiting to a document taking-out direction.

5. A rib structure for scanner according to claim 4, characterized in that said lower cover (2) is further formed with a carrying table (22) corresponding to the original taking-out side, and one edge of said scanning glass (3) is overlapped on said carrying table (22).

6. A rib structure for scanner according to claim 5, characterized in that both outer edges of said upper cover (1) parallel to the original document taking-out direction form overlapping edges which are pressed against said scanning glass (3).

7. A scanner, comprising:

a rib structure for a scanner as claimed in any one of claims 1 to 6.

8. A multi-function machine, comprising:

a scanner as claimed in claim 7.