JP3155647U - Scanner unit - Google Patents

Abstract

There is provided a scanner unit capable of ensuring scanning quality without causing friction with an original plate and extending the service life of a flexible flat cable. A scanner unit 100 includes a frame body 1, a control module, an original plate 2, a reading module 3, a direction guide shaft 4, and a cable unit 5. The control module is installed on the frame body 1, and an original The plate 2 is installed on the upper part of the frame frame body 1, the direction guide shaft 4 is installed in the frame frame body 1, and is positioned below the original plate 2, and the reading module 3 slides on the direction guide shaft 4. Installed in a possible state, one end of the cable unit 5 is fixedly connected on the reading module 3, and the other end is fixedly connected on the control module. The cable unit 5 includes a restriction introduction plate and a restriction introduction. The flexible flat cable which adheres and fixes on a board is provided, and the cross section of a restriction | limiting introduction board exhibits curved shape. [Selection] Figure 1

Description

  The present invention relates to a scanner unit, and more particularly to a scanner unit including a restriction introduction plate.

Normally, scanners and office machines are equipped with a scanner unit.
As shown in FIG. 8, the scanner unit 100 ′ includes a frame frame body 1 ′, a glass original plate 2 ′, a reading module 3 ′, a direction guide shaft 4 ′, a flexible flat cable (Flexible Flat Cable, abbreviation for FFC). 5 ', provided with a control module (not shown).
An original 6 'is placed on the original plate 2'.
The original plate 2 ′ is installed on the upper part of the frame body 1 ′.
The reading module 3 ′ is installed in the frame 1 ′, reads information from the document 6 ′, and transmits a signal to the control module.
The reading module 3 ′ is guided by a direction guide shaft 4 ′.
One end of the flexible flat cable 5 ′ is connected to the lower part of the reading module 3 ′, and the other end is connected to a power source (not shown) through the control module.
In this way, power can be supplied to the reading module 3 ', information can be picked up, and signals can be transmitted to the control module.

However, the design of the scanner and the office machine has been reduced in size, and the height inside the frame frame body 1 ′ is limited as a space.
When the reading module 3 ′ picks up the information on the document 6 ′ and the flexible flat cable 5 ′ reciprocates according to the reading module 3 ′, the flexible flat cable 5 ′ is usually in a partially curved state. Become.
The curved portion is highly flexible due to its greater flexibility, and comes into contact with the original plate 2 ′ (see FIG. 8), and easily comes into contact with the original plate 2 ′ and causes friction.
This adversely affects the quality and efficiency of signal collection and causes wear of the flexible flat cable 5 '.

  The problem to be solved by the present invention is that the flexible flat cable does not come into contact with the original plate, so that it does not cause friction with the original plate, ensuring the quality of scanning, and extending the service life of the flexible flat cable. It is to provide a scanner unit that can.

The invention of claim 1 includes a frame frame body, a control module, an original plate, a reading module, a direction guide shaft, and a cable unit, the control module is installed on the frame frame body, and the original plate is the frame Installed in the upper part of the frame body, the direction guide shaft is installed in the frame frame body, located under the original plate, and the reading module is slidably installed on the direction guide shaft, One end of the cable unit is fixedly connected on the reading module, and the other end is fixedly connected on the control module. The cable unit is bonded to the restriction introduction plate and the restriction introduction plate. The scanner unit is characterized in that a flexible flat cable is provided and fixed, and the cross section of the restriction introducing plate is curved. .
The invention of claim 2 is characterized in that a cross section of the restriction introduction plate in a natural state has a substantially trapezoidal shape, and a cross section in a curved state of the restriction introduction plate has a substantially straight shape. The scanner unit is described.
The invention of claim 3 is characterized in that the restriction introducing plate includes a substrate and two blades connected to the substrate side in a state of being provided with elasticity, respectively. The scanner unit according to claim 2, wherein the scanner unit is formed by extending outward and extending in a long direction of the substrate.
The invention of claim 4 is the scanner unit according to claim 1, wherein the restriction introducing plate is made of a flexible material, and the cross section in a natural state has an approximately arc shape.
The invention of claim 5 is the scanner unit according to claim 1, wherein the restriction introducing plate is made of a flexible material, and the cross section in a natural state is approximately V-shaped. .
The invention of claim 6 is the scanner unit according to claim 1, wherein the restriction introducing plate is made of a flexible material and has a substantially L-shaped cross section in a natural state. .
7. The scanner unit according to claim 6, wherein the restriction introduction plate includes a substrate, and one side edge of the substrate is inclined and extends outward to form a wing plate. It is said.
The invention of claim 8 is the scanner unit according to claim 1, wherein the flexible flat cable is positioned relatively inside when the restriction introduction plate is in a curved state.

  In the scanner unit of the present invention, it is possible to prevent the flexible flat cable from contacting the document plate and causing friction with the document plate by installing the restriction introduction plate and the curved cross section of the restriction introduction plate being curved. . Thus, scanning quality can be ensured and the life of the flexible flat cable can be extended.

It is a cross-sectional schematic diagram of the scanner unit of the present invention. It is a cross-sectional schematic diagram of the cable unit shown in FIG. It is a schematic diagram which shows when the 1st Example of the restriction | limiting introduction board of the cable unit shown in FIG. 1 exists in a curved state. It is a cross-sectional schematic diagram of the restriction | limiting introduction board of 2nd Example of this invention. It is a schematic diagram which shows the time when the restriction | limiting introduction board of the cable unit shown in FIG. 4 exists in a curved state. It is a cross-sectional schematic diagram of the restriction | limiting introduction board of this invention 3rd Example. It is a cross-sectional schematic diagram of the restriction | limiting introduction board of 4th Example of this invention. It is a cross-sectional schematic diagram of a conventional scanner unit.

  The best mode for carrying out the present invention will be described below in detail with reference to the drawings.

  As shown in FIG. 1, the scanner unit 100 of the present invention includes a frame frame body 1, a document plate 2, a reading module 3, a direction guide shaft 4, a cable unit 5, and a control module (not shown).

As shown in FIG. 1, the document plate 2 is made of glass and allows light to pass through. The document plate 2 is placed on the upper part of the frame body 1 and places the document 6 thereon.
The reading module 3 is installed inside the frame body 1, irradiates light onto the document 6, reads an image signal corresponding to the document 6, and collects it.
The reading module 3 is supported by a direction guide shaft 4 installed under the original plate 2 and reciprocates along the axial direction of the direction guide shaft 4.
The reading module 3 executes the reciprocating motion in the arrow direction shown in FIG.

As shown in FIGS. 2 and 3, the cable unit 5 includes a restriction introducing plate 51 and a flexible flat cable 52 of the first embodiment.
The flexible flat cable 52 is bonded and fixed onto the restriction introduction plate 51.
The flexible flat cable 52 is always located on the relative inner side when the restriction introduction plate 51 is in a curved state.
One end located above the cable unit 5 is fixedly connected to the lower part of the reading module 3.
The flexible flat cable 52 and the components inside the reading module 3 are connected to each other and electrically connected.
The opposite end located below the cable unit 5 is connected to a power source (not shown) through a control module (not shown).
The flexible flat cable 52 and the components inside the control module are connected to each other and electrically connected.

As shown in FIGS. 2 and 3, the transverse cross section in the natural state of the restriction introducing plate 51 is substantially trapezoidal, a flat plate-like substrate 511, and two blades connected to the sides in a state of elasticity. 512 is included.
The vane plate 512 is formed so as to be inclined outward from the substrate 511 and extend in the long direction of the substrate 511.
The cross section of the restriction introducing plate 51 at the curved position is approximately linear.

  As shown in FIG. 1, when the reading module 3 collects a signal and transmits it to the control module through the cable unit 5, the reading module 3 is horizontally below the original plate 2 along the direction indicated by the arrow in the figure. In response to this, the cable unit 5 is interlocked to perform the reciprocating motion.

When the cable unit 5 of the scanner unit 100 of the present invention is bent, the restriction introducing plate 51 is flattened and erases the stress at the bent position.
The blades 512 on both sides of the substrate 511 located on the upper side with respect to the curved position of the restricting introduction plate 51 exert an acting force toward the lower side, and the lower side opposite to the curved position of the restricting introducing plate 51. Since the blades 512 on both sides of the substrate 511 located at the center exert an upward action force, the limiting introduction plate 51 becomes flat in the curved position and eliminates the stress.
At this time, the blades 512 on both sides of the substrate 511 at the curved position are unfolded and exhibit the same smooth curved surface as the substrate 511.

As shown in FIGS. 2 and 3, the curved position portion of the restriction introducing plate 51 is subjected to stress directed obliquely by the refracted blades 512 on both sides, and therefore cannot be deformed to rise in the vertical direction.
That is, only the reciprocating motion in the horizontal direction is possible, and the movement path and height of the restriction introduction plate 51 and the flexible flat cable 52 that is bonded and fixed inside the restriction introduction plate 51 are restricted.
Thus, the restriction introducing plate 51 does not rise at the curved position, and can avoid contact and friction with the document plate 2.
At the same time, the blades 512 located on both sides of the substrate 511 are inclined and refracted toward the inside of the curved position of the substrate 511.
Therefore, the blades 512 on both sides of the side substrate 511 that move to the curved position and are relatively close to the original plate 2 do not contact or rub against the original plate 2.

The restriction introduction plate 51 of the first embodiment of the present invention described above can adopt other three types of structures, and the function of the restriction introduction plate 51 can also be achieved by these.
The restriction introducing plate 53 of the second embodiment shown in FIG. 4 is made of a flexible material, and the cross section in a natural state is substantially L-shaped.
The restriction introducing plate 53 includes a flat plate-like substrate 531, and one side edge of the substrate 531 is inclined and extends outward to form a flat blade plate 532.
The curved state is shown in FIG.
The restriction introducing plate 54 of the third embodiment shown in FIG. 6 is made of a flexible material, and the natural cross section has an arcuate shape.
The restriction introducing plate 55 of the fourth embodiment shown in FIG. 7 is made of a flexible material, and the cross section in a natural state is approximately V-shaped.

The restriction introducing plates 51, 53, 54 and 55 of the scanner unit 100 of the present invention are not limited to the specific structure described above.
In other words, all equivalent changes and modifications to be made to the structure and configuration of the restriction introducing plates 51, 53, 54, and 55 of the scanner unit 100 of the present invention are within the scope that can be understood by those skilled in the art. It shall be included in the protection scope of the present invention.

The scanner unit 100 according to the present invention is provided with the restriction introducing plates 51, 53, 54, and 55, and the flexible introduction of the flexible flat cable 52 with the original plate is caused by the curved cross section of the restriction introducing plates 51, 53, 54, and 55. 2 and contact with the original plate 2 can be avoided.
Thus, the quality of scanning can be ensured and the life of the flexible flat cable 52 can be extended.

  The present invention has the novelty that is a requirement of the utility model, has sufficient progress compared to the conventional similar products, has high practicality, meets the needs of society, and has a very high industrial utility value .

100 Scanner unit 1 Frame frame body 2 Document plate 3 Reading module 4 Direction guide shaft 5 Cable unit 51 Restriction introduction plate 511 Substrate 512 Blade plate 52 Flexible flat cable 53 Restriction introduction plate 531 Substrate 532 Blade plate 54 Restriction introduction plate 55 Restriction introduction plate 6 Manuscript

Claims (8)

Includes frame body, control module, document plate, reading module, direction guide shaft, cable unit,
The control module is installed on the frame body,
The original plate is installed on the upper part of the frame body,
The direction guide shaft is installed in the frame body and is located under the original plate.
The reading module is installed in a slidable state on the direction guide shaft,
One end of the cable unit is fixedly connected to the reading module, and the other end is fixedly connected to the control module. The cable unit is bonded to the restriction introduction plate and the restriction introduction plate. A scanner unit comprising: a flexible flat cable to be fixed; and the cross section of the restriction introducing plate is curved. The cross section in the natural state of the restriction introducing plate is approximately trapezoidal,
2. The scanner unit according to claim 1, wherein a cross section of the restriction introducing plate in a curved state is approximately linear. The restriction introducing plate includes a substrate and two blades connected to the side of the substrate in a state of having elasticity respectively.
The scanner unit according to claim 2, wherein the two blades are formed to extend outward from the substrate and extend in a long direction of the substrate.   2. The scanner unit according to claim 1, wherein the restriction introduction plate is made of a flexible material, and the cross section in a natural state is substantially arcuate.   2. The scanner unit according to claim 1, wherein the restriction introducing plate is made of a flexible material and has a substantially V-shaped cross section in a natural state.   2. The scanner unit according to claim 1, wherein the restriction introducing plate is made of a flexible material and has a substantially L-shaped cross section in a natural state.   The scanner unit according to claim 6, wherein the restriction introducing plate includes a substrate, and one side edge of the substrate is inclined and extends outward to form a wing plate.   The scanner unit according to claim 1, wherein the flexible flat cable is positioned relatively inside when the restriction introduction plate is in a curved state.

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