CN2681482Y - Scanner - Google Patents

Abstract

The utility model relates to a scanner which is used to scan an object, comprising a transparency cover, a detection device and a bunt-top structure. The transparency cover is used to place objects. The detection device which is arranged under the transparency cover is used to scan the objects. The bunt-top structure which is arranged in the detection device comprises a contact member and a resilient structural member. When the transparency cover contacts and presses the contact member, the resilient structural member can move in succession and deform to support the detection device until the detection device contacts with the contact member. So the detection device can hold certain distance with the transparency cover.

Description

Scanner

Technical field

This is novel to relate to a kind of scanner, particularly relates to a kind of scanner that can guarantee quality of scanning.

Background technology

Fig. 1 a shows a kind of schematic diagram of known contact type image scanner, and this scanner has upper shell 11, lower house 12, transparency cover 13, bogey 14, guiding rod member 15 and drive unit 16.Upper shell 11 has an opening 111, and transparency cover 13 is arranged on the opening 111, and object to be scanned (not showing among the figure, for example: paper, photograph etc.) just is placed on the transparency cover 13.Bogey 14 is arranged between upper shell 11 and the lower house 12, and inside is provided with the contact-type image sensor (not shown), scans across 13 pairs of objects to be scanned that are placed on it of transparency cover between this contact-type image sensor.Guiding rod member 15 is arranged on lower house 12 inside, and bogey 14 utilizations are striden the portion of establishing 141 and are connected with guiding rod member 15.Drive unit 16 is arranged in the lower house 12 and with bogey 14 and is connected, and bogey 14 drives by drive unit 16 and moves along guiding rod member 15, in order to finish the scanning to object to be scanned.

Known contact type image scanner internal structure schematic diagram shown in Fig. 1 b displayed map 1a, among Fig. 1 c displayed map 1b along the profile of hatching IC-IC '.By among Fig. 1 b and the 1c as can be known, stride the bottom that the portion of establishing 141 is formed on bogey 14, be provided with a plurality of rollers 142 in the both sides, top of bogey 14, in order to contact with transparency cover 13.In addition, bogey 14 is connected with the belt 161 of drive unit 16, moves thereby make bogey 14 to drive along guiding rod member 15 by drive unit 16.

Yet, from the above, in known contact type image scanner, distance between bogey and the transparency cover is fixing, therefore, the distance of controlling therebetween is consistent in whole scanning process, is making on the precision or all is being very difficult on the caused material slight deformation of variations in temperature.

Novel content

Therefore, the purpose of the scanner that this is novel is exactly in order to address the above problem, and a kind of scanner is provided, and in order to scan an object, it comprises a transparency cover, a checkout gear and an abutting structure.

According in this new embodiment, transparency cover is in order to place above-mentioned object; Checkout gear is arranged on the below of transparency cover in order to sweep object; Abutting structure is arranged in the checkout gear and comprises a contact member and an elastic component, when transparency cover compresses contact member, elastic component is with interlock and distortion, and then replace checkout gear and contact with contact member until checkout gear, make checkout gear and transparency cover keep a preset distance.

In this was novel, checkout gear and elastic component were formed in one.

In this is novel, elastic component has one first position, one second position and one the 3rd position, contact member is supported at first position, second position is arranged on the checkout gear, and imageing sensor is supported at the 3rd position, when transparency cover compresses contact member and then promote first position, elastic component is the fulcrum rotation with second position, drive the 3rd position and replace checkout gear, contact with contact member, make checkout gear and transparency cover keep a preset distance up to checkout gear.

In this was novel, checkout gear comprised an imageing sensor and a bearing assembly again, and imageing sensor is in order to scanning above-mentioned object, and bearing assembly is in order to the load image transducer.

In this was novel, bearing assembly and elastic component were formed in one.

In this was novel, scanner also comprised a drive unit, was connected with checkout gear, in order to drive checkout gear.

In this was novel, above-mentioned imageing sensor was contact-type image sensor (CIS) again.

Description of drawings

For making this novel above-mentioned and other purpose, feature and advantage can more obvious easy to understand,, and elaborate in conjunction with the accompanying drawings below especially exemplified by a concrete preferred embodiment.In the accompanying drawing:

Fig. 1 a shows the schematic diagram of known scanner;

Fig. 1 b shows the schematic diagram of known scanner;

Among Fig. 1 c displayed map 1b along the profile of hatching IC-IC;

Fig. 2 a shows the part sectioned view of this new type scanner, and at this moment transparency cover is still unassembled to housing;

Fig. 2 b shows the part sectioned view of this new type scanner, and at this moment transparency cover is assembled on the housing.

Embodiment

Below described in detail with the content of specific embodiment this novel announcement

Referring to Fig. 2 a and 2b, describe this novel scanner in detail.Fig. 2 a shows the fragmentary cross-sectional view of this new type scanner, and at this moment transparency cover is still unassembled to housing; Fig. 2 b shows the fragmentary cross-sectional view of this new type scanner, and at this moment transparency cover is assembled on the housing.As known scanner, the device and the assembly that constitute this new type scanner also all are arranged in the housing, and these will repeat no more.This novel scanner mainly is made of transparency cover 23, checkout gear and abutting structure, in the present embodiment, checkout gear comprises bearing assembly 24 and imageing sensor 25, and abutting structure comprises contact member 26 and elastic component 27, in addition, imageing sensor 22 is contact-type image sensor (CIS).

Can place object to be scanned (not showing on the figure, for example can be paper, photo etc.) on the transparency cover 23.Bearing assembly 24 is arranged on transparency cover 23 belows, and inside is provided with imageing sensor 25, and imageing sensor 25 scans across 23 pairs of objects of transparency cover.Contact member 26 is arranged in the bearing assembly 24, and an end has the top 261 of circular arc, and contact member 26 is fitted on the transparency cover 23 by its circular arc top 261.Elastic component 27 is positioned at the below of contact member 26, has first position 271, second position 272 and the 3rd position 273.First position 271 is connected with an end of contact member 26, also can be to contact; Second position 272 articulates with bearing assembly 24; The 3rd position 273 is connected with imageing sensor 25, also can be to contact, or by binder and affixed.

Shown in Fig. 2 a, at this moment imageing sensor 25 and contact member 26 are assembled in the bearing assembly 24, but still unassembled transparency cover 23, therefore elastic component 27 is not out of shape, the top 261 of contact member 26 is higher than the position that transparency cover 23 is about to assembling, and transparency cover 23 will press down contact member 26 so that be assembled on the scanner.

After Fig. 2 b demonstration is assembled to scanner with transparency cover 23, contact member 26 by transparency cover 23 to pressing down, thereby contact member 26 compresses first position 271 of elastic component 27, make that elastic component 27 is the fulcrum rotation with second position 272, and then make the 3rd position 273 of elastic component 27 promote and support imageing sensor 25, thereby keep a preset distance with transparency cover 23.In the present embodiment, imageing sensor 25 is by after the jack-up, the lower surface on the circular arc top 261 of the contact member 26 that reclining.That is to say that elastic component 27 produces distortion because of pressing down of transparency cover 23, and then force imageing sensor 25 to keep a preset distance with transparency cover 23.Thus, this novel scanner just can make imageing sensor 25 keep a preset distance with transparency cover 23 in whole scanning process, makes the position of object be positioned on the focal length of imageing sensor 25, to guarantee the optical quality of scanner.Drive bearing assembly 24 by drive unit (not showing on the figure) more later on, make imageing sensor can finish scanning imaging system.

Simultaneously, this elastic component in novel part that can be bearing assembly or one elastomer and being arranged on the bearing assembly independently.That is to say, when elastic component is bearing assembly a part of, elastic component can form the structure of a similar seesaw in the bottom of bearing assembly, the two ends of seesaw contact with imageing sensor with contact member respectively or are connected, and the fulcrum of seesaw then becomes one with bearing assembly.

Disclose with preferred embodiment though basis is novel; but it is not novel in order to limit this, anyly has the knack of those skilled in the art, is not breaking away from this a novel essence and scope; can make many changes and retouching, therefore this novel protection range is defined with accompanying Claim.

Claims (7)

1. a scanner in order to scan an object, is characterized in that, comprising:

One transparency cover is placed described object on it;

One checkout gear, the below that is arranged on described transparency cover is in order to scan described object; And

One abutting structure, be arranged in the checkout gear, and comprise a contact member and an elastic component, when transparency cover compresses contact member, elastic component is with interlock and distortion, and then replace checkout gear and contact with contact member until checkout gear, make checkout gear and transparency cover keep a preset distance.

2. scanner as claimed in claim 1 is characterized in that described checkout gear and elastic component are formed in one.

3. scanner as claimed in claim 1, it is characterized in that, described elastic component has one first position, one second position and one the 3rd position, contact member is supported at first position, second position is arranged on this checkout gear, and imageing sensor is supported at the 3rd position, when transparency cover compresses contact member and then promote first position, elastic component is the fulcrum rotation with second position, drive the 3rd position and replace checkout gear, contact with contact member up to checkout gear, make checkout gear and transparency cover keep a preset distance.

4. scanner as claimed in claim 1 is characterized in that, described checkout gear comprises an imageing sensor and a bearing assembly, and imageing sensor is in order to scan described object, bearing assembly load image transducer.

5. scanner as claimed in claim 4 is characterized in that described bearing assembly and elastic component are formed in one.

6. scanner as claimed in claim 1 is characterized in that it also comprises a drive unit, is connected with checkout gear, in order to drive checkout gear.

7. scanner as claimed in claim 1 is characterized in that, described imageing sensor is contact-type image sensor (CIS).

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