TWM514169U - Image acquisition device - Google Patents

Description

Image capture device

The present invention provides an image capturing device, and more particularly to an image capturing device applied to a contact image sensor module.

With the advancement of the technology industry, various office machines such as scanners, printers or fax machines have become indispensable equipment in the office. Among them, a scanner with a file scanning function or a multi-function transaction machine is an indispensable device for electronic office documents. The Contact Type Image Sensor (CIS) module has been widely used in platform image scanners. During the scanning movement, the CIS module maintains stable contact with the transparent glass plate on which the document to be scanned is placed, which is an important key to the quality of the scanned image.

The contact mechanism of the CIS module includes a contact mechanism with the transmission device. The prior art has adopted the contact mode of the gear and the rack, and is driven by the gear and the rack. The manufacturing and installation precision is high, and if the installation precision is poor, The transmission noise is large, the wear is large, the service life is short, and the gear and the rack drive are high, and the maintenance and maintenance costs are high. In the prior art, the contact mode of the metal track or the plastic track has been used, but the metal track or the plastic track slides and rubs, which is easy to wear and has a short service life.

The contact mechanism of the CIS module further includes a contact mechanism with the glass plate. The conventional CIS module can use the wear plate to contact the glass plate, and the movement mode is sliding in a single direction, the sliding friction is easy to wear, and the service life is short, although the structure Simple, but the glass plate needs to coat a layer of oil film for lubrication, which is troublesome.

In summary, the creator feels that the above-mentioned deficiencies can be improved. He has devoted himself to research and cooperates with the application of academics, and finally proposes a design that is reasonable in design and effective in improving the above-mentioned deficiencies.

The technical problem to be solved by the present invention is to provide an image capturing device, wherein the image sensor module and the transmission device are in contact with each other in rolling contact, the rolling friction is small in wear, the vibration is small, the noise is small, and the service life is long.

The technical problem to be solved by the present invention is to provide an image capturing device, wherein the image sensor module and the transparent plate are in contact with each other in rolling contact, the rolling friction is small in wear, the service life is long, and the structure is simple, and the transparent plate There is no need to apply a lubricated oil film.

In order to solve the above technical problem, the present invention provides an image capturing device disposed between a base of the electronic device and the transparent plate, comprising: an image sensor module having an upper surface, the upper surface being adjacent to the image capturing device a transparent sensor plate; a sensor module bracket, the image sensor module is disposed on the sensor module bracket; a roller bracket is disposed under the sensor module bracket, the roller bracket includes a roller bracket body and two rollers, the two rollers are pivotally disposed on the roller bracket body; at least one elastic component is disposed between the sensor module bracket and the roller bracket for elastically supporting the sensor a module bracket; and a rail disposed on the base, the two rollers of the roller bracket being mounted on the rail, the rollers being rotatable on the rail.

Preferably, the track is a plastic track.

Preferably, the method further includes at least two rolling bodies mounted on an upper surface of the image sensor module, the at least two rolling bodies forming rolling contact with the transparent plate.

This creation has at least the following advantages:

The two rollers of the creation roller bracket and the track of the base are in rolling contact, rolling The abrasion is small, the vibration is small, and the service life is long.

Further, the track can be a plastic track, and the plastic track can be directly formed on the plastic base for manufacturing.

Further, at least two rolling bodies can be mounted on the upper surface of the image sensor module, and the rolling bodies form rolling contact with the transparent plate. Therefore, the rolling object can be used to ensure that the document to be scanned is within the depth of field of the image sensor module. The accuracy of the rolling element is high, and the friction between the rolling element and the transparent plate is small, and the variation of the depth of field is small, so that the image quality is high. The rolling element can roll in any direction, the rolling friction has small wear and long service life, and the structure is simple. Because the friction between the rolling element and the transparent plate is small, and the surface roughness of the transparent plate is not high, the transparent plate does not need to be coated. Lubricated oil film.

In order to further understand the features and technical contents of the present invention, please refer to the following detailed description and drawings of the present invention. However, the drawings are only for reference and description, and are not intended to limit the creation.

1‧‧‧Image Sensor Module

11‧‧‧ upper surface

12‧‧‧ accommodating slots

2‧‧‧Sensor module bracket

21‧‧‧Loading Department

211‧‧‧Substrate

212‧‧‧Limited board

22‧‧‧First pivotal

221‧‧‧Pivot

3‧‧‧Roller bracket

31‧‧‧Roller bracket body

311‧‧‧Axis hole

312‧‧ ‧ notch

32‧‧‧Roller

321‧‧‧Roller body

322‧‧‧V-groove

323‧‧‧Shaft axis

33‧‧‧Second pivotal

331‧‧‧ pivot

34‧‧‧ Rotating Center

35‧‧‧Fixed column

4‧‧‧Flexible components

41‧‧‧ Fixed Department

42‧‧‧Abutment

5‧‧‧ rolling elements

6‧‧‧Conveyor belt

100‧‧‧Base

101‧‧‧ Track

200‧‧‧ transparent plate

FIG. 1 is an exploded perspective view of the image capturing device of the present invention.

2 is an exploded perspective view of another angle of the image capturing device of the present invention.

FIG. 3 is a perspective assembled view of the image capturing device of the present invention.

4 is a perspective assembled view of another angle of the created image capturing device.

FIG. 5 is a perspective view of the creative image capturing device disposed on the scanner.

FIG. 6 is a perspective view of the created image capturing device disposed on the base of the scanner.

Figure 7 is a plan view showing the image capturing device of the present invention disposed on the scanner.

FIG. 8 is another plan view of the present image capturing device disposed on the scanner.

FIG. 9 is an exploded perspective view of another embodiment of the created image capturing device.

[First Embodiment]

Referring to FIG. 1 to FIG. 4 , the present invention provides an image capturing device disposed between a base 100 of an electronic device and a transparent plate 200 (a glass plate) (as shown in FIG. 5 ), and the electronic device may be a scanner. Or the MFP, the image capturing device includes an image sensor module 1, a sensor module holder 2, a roller holder 3, and at least one elastic member 4.

The image sensor module 1 can be a contact image sensor (CIS) module, which includes an optical lens, a sensing component, and a photoelectric conversion circuit (not shown). The image sensor module 1 has an upper surface 11 that is adjacent to the transparent plate 200.

The sensor module holder 2 can have a carrying portion 21 and a first pivoting portion 22, and the carrying portion 21 can be used to carry the image sensor module 1. The structure of the carrying portion 21 is not limited, in this embodiment. The carrying portion 21 has a substrate 211 and a plurality of limiting plates 212 extending upwardly from the front and rear ends of the substrate 211. The image sensor module 1 is disposed on the substrate 211 of the carrying portion 21, and is limited to the Between the limiting plates 212, the image sensor module 1 and the limiting plates 212 can have appropriate gaps, so that the image sensor module 1 can be placed up and down in the sensor module. On the bracket 2. The first pivoting portion 22 is coupled to the carrying portion 21, and the first pivoting portion 22 can have a pivot hole 221 for pivoting the roller bracket 3. However, the configuration of the sensor module holder 2 is not limited, and may be changed according to actual needs, and thus will not be described again.

The roller bracket 3 is disposed under the sensor module bracket 2, and the roller bracket 3 can be located below the middle section of the sensor module bracket 2, so that the sensor module bracket 2 can be balancedly disposed on the roller bracket 3. The roller bracket 3 includes a roller bracket body 31 and two rollers 32. The roller bracket body 31 can extend to form a second pivoting portion 33. The second pivoting portion 33 has a pivot 331 and a pivot 331 of the second pivoting portion 33. The pivoting holes 221 of the first pivoting portion 22 are pivotally connected to each other, so that the sensor module bracket 2 and the roller bracket 3 are pivotally connected to each other, and the pivot 331 and the pivot hole 221 can form a center of rotation 34 (as shown in the figure). The rotation center 34 is formed at the pivotal joint of the sensor module holder 2 and the roller holder 3, so that the sensor module holder 2 can be stably moved relative to the roller holder 3. However, the construction of the roller bracket 3 of the present invention is not limited, and can be adapted to actual needs. And change it, so it will not be repeated.

In addition, the artificial sensor module bracket 2 and the roller bracket 3 are not limited to be connected in a pivotal manner. For example, a lifting guide structure may be disposed between the sensor module bracket 2 and the roller bracket 3 (eg, The column, the guide shaft, the guide rail or the guide hole, the guide groove, and the like) can guide the movement of the sensor module bracket 2 on the roller bracket 3 to move up and down.

The two rollers 32 are pivotally mounted on the roller bracket body 31. The roller 32 can be a one-piece, two-piece or multi-piece structure. The roller 32 has a roller body 321 . The roller body 321 is provided with a V-shaped groove 322 at the circumference of the roller body 321 . The roller body 321 is provided with a convex shaft 323 at an axial center thereof. The protruding shaft 323 protrudes from both sides of the roller body 321 , and the roller 32 can The shaft 311 is pivotally disposed on the corresponding shaft hole 311 of the roller bracket body 31, so that the two rollers 32 are pivotally disposed on the near sides of the roller bracket body 31, and the roller 32 can be freely rotated on the roller bracket body 31. The bottom of the roller bracket body 31 may be formed with a recess 312 for receiving the rail 101 to avoid interference between the roller bracket body 31 and the rail 101. The two rollers 32 correspond to the notches 312 of the roller bracket body 31. The two rollers 32 are located on the same straight line, and the two rollers 32 may also be located on both sides of the center of rotation 34.

The base 100 is provided with a track 101, which may be a plastic track or a metal track, and the track 101 may have a circular arc shape in cross section. The track 101 can be integrally formed on the base 100. The track 101 can also be independent and assembled on the base 100. In this embodiment, the track 101 is a plastic track, which is integrally formed on the base 100 of the plastic. The two rollers 32 of the roller bracket 3 are mounted on the rail 101 of the base 100 (as shown in FIGS. 6 and 7). The two rollers 32 can roll on the rail 101, so that the roller bracket 3 can move on the rail 101, and the roller 32 is When the track 101 is rolled, a line contact can be formed between the roller 32 and the track 101 (as shown in FIG. 8), and the V-shaped groove 322 can also provide a limit effect of the left and right movement of the roller 32, so that the roller 32 can be in the track. Steady scrolling on 101. The two rollers 32 carry the entire image sensor module 1 and the sensor module bracket 2 across the track 101, and the two rollers 32 form rolling friction with the track 101.

The sensor module bracket 2 or the roller bracket 3 described above may be further connected to one The conveyor belt 6 can be driven by a motor transmission component (not shown), so that the sensor module bracket 2 and the roller bracket 3 can be pulled by the conveyor belt 6 to drive the image sensor module 1 on the track 101. The two ends are moved to perform a file scanning operation; the above-mentioned technique for driving the image sensor module 1 to move and scan by using the conveyor belt and the motor transmission component is a conventional technique, and thus will not be described again.

The elastic component 4 is disposed between the sensor module holder 2 and the roller bracket 3, and can be used for elastically supporting the sensor module holder 2, so that the image sensor module 1 is attached to the transparent plate 200. The type and configuration of the elastic member 4 are not limited and may be a torsion spring, a compression spring, a spring piece or other elastic members. In this embodiment, the elastic member 4 is a torsion spring, that is, a double torsion spring structure. The elastic member 4 has two fixing portions 41 and a top abutting portion 42. The fixing portion 41 extends in a spiral shape, and the top abutting portion 42 is connected. Between the two fixing portions 41. The two fixing portions 41 are sleeved and fixed on the fixing posts 35 on both sides of the roller bracket 3, and the top abutting portion 42 can be in contact with the middle portion of the sensor module bracket 2, so as to provide upward elastic force by the elastic member 4. The middle portion of the sensor module holder 2 enables the sensor module holder 2 to be balancedly biased, and the sensor module holder 2 and the image sensor module 1 are uplifted upward to make the image sensor The module 1 can be kept in contact with the transparent plate 200 to provide good scanning image quality.

The present invention may further include at least two rolling bodies 5, which may be ball bearings or roller members. In this embodiment, the rolling bodies 5 are roller members, and at least two rolling bodies 5 are mounted on the image sensor module 1 The accommodating slots 12 are respectively disposed at the two sides of the upper surface 11 of the image sensor module 1 , and the rolling bodies 5 are disposed in the accommodating slots 12 , and the rolling bodies 5 are disposed The upper surface 11 is partially (top) so that the rolling bodies 5 can roll in any direction. When the elastic element 4 pushes the image sensor module 1 to be attached to the transparent plate 200, the rolling body 5 can form a rolling contact with the transparent plate 200, so that the image sensor module 1 and the transparent plate 200 are rolling elements. 5 contact.

[Second embodiment]

Referring to FIG. 9 , in the embodiment, the elastic element 4 is a compression spring, and the elastic element (pressure spring) 4 is disposed between the sensor module bracket 2 and the roller bracket 3 to utilize the elasticity. The component 4 provides an upward elastic force against the middle section of the sensor module holder 2, and the sensor module holder 2 and the image sensor module 1 are upwardly abutted, so that the image sensor module 1 can The transparent plate 200 remains in contact to provide good scanning image quality.

Therefore, the two rollers of the wheel bracket of the present invention are in rolling contact with the track of the base, and the rolling friction has small wear, small vibration and long service life. If the metal track is further replaced by a plastic track, the plastic track can be directly formed on the plastic base for manufacturing.

Furthermore, the creation can ensure that the document to be scanned is within the depth of field of the image sensor module by using a rolling body. The image sensor module contacts the transparent plate through the rolling element under the support of the elastic component, the precision of the rolling body is high, and the friction between the rolling body and the transparent plate is small, the variation of the depth of field is small, the imaging distance is fixed, and the image quality is improved. high. The rolling element can roll in any direction, the rolling friction has small wear and long service life, and the structure is simple. Because the friction between the rolling element and the transparent plate is small, and the surface roughness of the transparent plate is not high, the transparent plate does not need to be coated. Coating oil film lubricated.

However, the above description is only the preferred embodiment of the present invention, and it is not intended to limit the scope of patent protection of this creation. Therefore, the equivalent changes made by using this creation specification and the contents of the schema are all included in the right of this creation. Within the scope of protection, it is given to Chen Ming.

1‧‧‧Image Sensor Module

11‧‧‧ upper surface

12‧‧‧ accommodating slots

2‧‧‧Sensor module bracket

21‧‧‧Loading Department

211‧‧‧Substrate

212‧‧‧Limited board

22‧‧‧First pivotal

3‧‧‧Roller bracket

31‧‧‧Roller bracket body

311‧‧‧Axis hole

312‧‧ ‧ notch

32‧‧‧Roller

321‧‧‧Roller body

322‧‧‧V-groove

323‧‧‧Shaft axis

33‧‧‧Second pivotal

331‧‧‧ pivot

35‧‧‧Fixed column

4‧‧‧Flexible components

41‧‧‧ Fixed Department

42‧‧‧Abutment

5‧‧‧ rolling elements

Claims (10)

An image capturing device is disposed between the base of the electronic device and the transparent plate, and includes: an image sensor module having an upper surface, the upper surface is adjacent to the transparent plate; and a sensor module bracket The image sensor module is disposed on the sensor module bracket; a roller bracket is disposed under the sensor module bracket, the roller bracket includes a roller bracket body and two rollers, the two The roller is pivotally disposed on the roller bracket body; at least one elastic component is disposed between the sensor module bracket and the roller bracket for elastically supporting the sensor module bracket; and a track, the setting thereof On the base, two rollers of the roller bracket are mounted on the rail, and the two rollers can roll on the rail. The image capturing device of claim 1, wherein the two rollers each have a roller body, and the circumference of the roller body is provided with a V-shaped groove, the cross section of the track is formed into a circular arc shape, and the V-shaped grooves of the two rollers are The track fits. The image capturing device of claim 2, wherein a center of the roller body is provided with a convex shaft protruding from two sides of the roller body, the protruding shaft being pivotally disposed on the roller bracket body Corresponding shaft holes, the two rollers are pivotally disposed on the near sides of the roller bracket body. The image capturing device of claim 1, wherein the sensor module bracket and the roller bracket are pivotally connected to each other, and the pivot joint between the sensor module bracket and the roller bracket forms a center of rotation. The rollers are on the same line and the two rollers are located on either side of the center of rotation. The image capturing device of claim 1, wherein the roller bracket is located below the middle portion of the sensor module bracket, and the at least one elastic member abuts the middle portion of the sensor module bracket, Sensor module bracket and the image sensor module Up to the top. The image capturing device of claim 1, further comprising at least two rolling bodies, the at least two rolling bodies being a ball member or a roller member, wherein the at least two rolling bodies are mounted on an upper surface of the image sensor module At both sides, the at least two rolling bodies form rolling contact with the transparent plate. The image capturing device of claim 1, wherein the sensor module holder has a carrying portion, the carrying portion has a substrate and a plurality of limiting plates extending upward from the front and rear ends of the substrate. The image sensor module is disposed on the substrate of the carrying portion, and is disposed between the limiting plates, so that the image sensor module can be placed up and down in the sensor module bracket. on. The image capturing device of claim 1, wherein the at least one elastic element is a torsion spring or a compression spring. The image capture device of claim 1, wherein the track is integrally formed or combined on the base. The image capturing device of claim 1, wherein the track is a plastic track or a metal track.