KR102558483B1 - Movable document scanning device and system - Google Patents

Abstract

The present invention relates to a vehicular mobile document scanning device, comprising: a driver's seat for which a driver rides and drives; A work table composed of a table of a certain height and a post supporting the table and installed on the bottom plate of the trailer; a leveling unit that supports the lower part of the work table and is formed on the bottom plate of the trailer, and which is interlocked with vibration to raise and lower the support column so that the height of the table is maintained constant; a height adjusting device seated on the top of the table, capable of placing books thereon, and adjusting the height of the bookshelves on both sides; It includes a scanner formed in the interior space of the trailer and disposed above the height adjusting device, and a scanning unit having a support for supporting the scanner.

Description

Vehicle mobile document scanning device {Movable document scanning device and system}

The present invention relates to a vehicular mobile document scanning device, and more particularly, to a vehicular mobile document scanning device capable of performing a scanning operation at a cultural heritage investigation site by mounting a scanning device equipped with a scanner to a vehicle.

In general, libraries, old book museums, etc. adopt a storage method of storing book information made into images by scanning books in a server.

In other words, among the businesses for storing old books, there is a business for digitizing old books (old documents).

It is a project to scan about 80,000 books of the National Library of Korea and public libraries every year to create a database (DB), but sometimes the scan is not accurate due to the thickness of the book.

So, when scanning, I place an auxiliary material such as Styrofoam under the book to scan, but there is a disadvantage that the efficiency is reduced because the thickness of the auxiliary material that needs to be supported has to be changed every time the bookshelf is turned over.

In addition, it is often necessary to scan while moving from place to place, so it is necessary to use a special vehicle equipped with a scanner.

In addition, vibration can be prevented in the scanning process to ensure scanning accuracy, but prior art for a moving vehicle equipped with such a scanning device has not been previously presented.

Korean Patent Application No. 10-2015-0136482

The present invention has been made to solve the problems of the prior art, and an object of the present invention is to provide a vehicle mobile document scanning device that can prevent vibration so that scanning can be performed in a stable state when scanning is performed while moving from place to place outside, and can maintain a horizontal state by adjusting the flatness according to the topography so that the scanning operation can be stably performed.

Another object of the present invention is to provide a vehicular mobile document scanning device capable of improving the efficiency of a scanning operation by providing support units for actively adjusting the heights of both bookshelves in response to changes in the thickness of both bookcases when scanning a book.

An object of the present invention described above is a vehicle portion composed of a driver's seat portion on which a driver rides and drives, and a trailer connected to the rear of the driver's seat portion and having a space therein; A work table composed of a table of a certain height and a post supporting the table and installed on the bottom plate of the trailer; a leveling unit that supports the lower part of the work table and is formed on the bottom plate of the trailer, and which is interlocked with vibration to raise and lower the support column so that the height of the table is maintained constant; a height adjusting device seated on the top of the table, capable of placing books thereon, and adjusting the height of the bookshelves on both sides; This can be achieved by a vehicle mobile document scanning device including a scanner formed in the interior space of the trailer and disposed above the height adjusting device, and a scanning unit having a support for supporting the scanner.

The leveling unit is mounted in a groove formed in the bottom plate of the trailer, and includes a cylinder unit having first and second rods coupled to the upper and lower portions, respectively, having an inlet port and an outlet port through which hydraulic pressure is drawn in or out, a hydraulic pressure supply unit connected to the inlet port and the outlet port by a hydraulic hose and supplying hydraulic pressure, the first rod supported at the bottom of the prop, and first and second sensors mounted on an inner wall of the groove to detect a lifting operation of the first and second rods, and the first and second sensors. It is characterized in that it comprises a; connected to the control unit for generating a signal for controlling the operation of the hydraulic pressure supply unit.

The height adjusting device includes a base plate seated on a table; first and second supporting plates disposed on both left and right sides and respectively supporting the bookshelves on both sides; first and second lifting actuators connected to lower portions of the base plate and the first and second support plates, respectively, and adjusting heights by a lifting operation; and an interlocking unit connecting the first and second elevation actuators so that the respective elevation operations are interlocked in opposite directions.

The first lift drive part has a first shaft having a plurality of support rings supported on the base plate formed on its outer surface, a first support roller having one end connected to the first shaft and the other end being in close contact with the bottom surface of the first support plate and rolling while having a predetermined inclination angle, and a second support roller having one end connected to the first shaft and the other end being in close contact with the bottom surface of the second support plate and rolling while having an inclination angle opposite to that of the first connection part. It is characterized in that it comprises a second connecting band connected.

The second lift drive part has a plurality of support rings supported by the base plate formed on the outer surface of the second shaft disposed parallel to the first shaft, one end connected to the second shaft and the other end connected to the first support plate and having an inclination angle opposite to that of the first linkage A third linkage having one end connected to the second shaft and the other end connected to the second support plate but having an inclination angle opposite to that of the second linkage And a fourth linkage. characterized by

It is connected to the other end of the third connecting rod, and includes a first folding member connected to the first supporting plate, connected to the other end of the fourth connecting rod, and a second folding member connected to the second supporting plate, wherein the first folding member or the second folding member is an elastic plate made of rubber to facilitate a bending operation.

One end is connected to the lower part of the first support plate by a third folding member, disposed inclined at an angle opposite to the first connecting rod, and the other end is formed with a third shaft having a base plate and a third support ring supported. It is characterized by including a first auxiliary support.

One end of the lower part of the second support plate is connected by a fourth folding member, inclined at an angle opposite to the second connecting rod, and a fourth shaft having a fourth support ring supported by the base plate is formed at the other end. It is characterized by including a second auxiliary support.

The third folding member or the fourth folding member is characterized in that the flexible plate made of rubber to facilitate the bending operation.

The first connecting rod and the second connecting rod or the third connecting rod and the fourth connecting rod are disconnected at a portion to form a spaced gap, and are composed of upper and lower plate members, and push the upper plate member to continuously press the first support plate or the second support plate.

According to the present invention, when scanning is to be performed while moving from place to place outside, scanning can be performed in a stable state, so that the scanning operation can be stably performed.

In addition, when a book is scanned, the efficiency of the scanning operation can be improved by providing a supporting part for actively adjusting the height of the bookshelf on both sides in response to the change in thickness of the bookshelf on both sides.

1 is a diagram showing a vehicle mobile document scanning device according to the present invention;
2 is an enlarged cross-sectional view showing a 'horizontal holding unit' in the vehicle mobile document scanning device according to the present invention;
Figure 3 is a cross-sectional perspective view showing a 'horizontal holding unit' in the vehicle mobile document scanning device according to the present invention;
4 is a perspective view showing a 'height adjusting device' in the vehicle mobile document scanning device according to the present invention;
5 is a rear perspective view showing a 'height adjusting device' in the vehicle mobile document scanning device according to the present invention;
6 is a side view showing a 'height adjusting device' in the vehicle mobile document scanning device according to the present invention;
7 and 8 are front views showing the lifting operation of the first and second supporting plates of the height adjusting device in the vehicle mobile document scanning device according to the present invention;
9 is a bottom perspective view showing a 'pressure control unit' according to another embodiment of the present invention;
10 is a cross-sectional view showing the operation of the 'pressure control unit' of FIG. 9;

Hereinafter, embodiments will be described in detail with reference to the accompanying drawings. However, since various changes can be made to the embodiments, the scope of the patent application is not limited or limited by these embodiments. It should be understood that all changes, equivalents or substitutes to the embodiments are included within the scope of rights.

Specific structural or functional descriptions of the embodiments are disclosed for illustrative purposes only, and may be modified and implemented in various forms. Therefore, the embodiments are not limited to the specific disclosed form, and the scope of the present specification includes changes, equivalents, or substitutes included in the technical spirit.

Although terms such as first or second may be used to describe various components, such terms should only be construed for the purpose of distinguishing one component from another. For example, a first element may be termed a second element, and similarly, a second element may be termed a first element.

It should be understood that when an element is referred to as being “connected” to another element, it may be directly connected or connected to the other element, but other elements may exist in the middle.

Terms used in the examples are used only for descriptive purposes and should not be construed as limiting. Singular expressions include plural expressions unless the context clearly dictates otherwise. In this specification, terms such as "comprise" or "having" are intended to specify that a feature, number, step, operation, component, part, or combination thereof described in the specification exists, but it should be understood that the presence or addition of one or more other features or numbers, steps, operations, components, parts, or combinations thereof is not excluded in advance.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by a person of ordinary skill in the art to which the embodiment belongs. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related art, and are not interpreted in an ideal or excessively formal meaning unless explicitly defined in the present application.

In addition, in the description with reference to the accompanying drawings, the same reference numerals are given to the same components regardless of reference numerals, and overlapping descriptions thereof will be omitted. In describing the embodiment, if it is determined that a detailed description of a related known technology may unnecessarily obscure the gist of the embodiment, the detailed description will be omitted.

Advantages and features of the present invention, and methods of achieving them, will become clear with reference to the detailed description of the following embodiments taken in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in a variety of different forms, and only these embodiments make the disclosure of the present invention complete, and those skilled in the art It is provided to completely inform the scope of the invention, and the present invention is only defined by the scope of the claims.

In the embodiments of the present invention, unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related art, and unless explicitly defined in the embodiments of the present invention, an ideal or excessively formal meaning. It is not to be interpreted.

The shapes, sizes, ratios, angles, numbers, etc. disclosed in the drawings for explaining the embodiments of the present invention are illustrative, so the present invention is not limited to the details shown. In addition, in describing the present invention, if it is determined that a detailed description of related known technologies may unnecessarily obscure the subject matter of the present invention, the detailed description will be omitted. When 'includes', 'has', 'consists of', etc. mentioned in this specification is used, other parts may be added unless 'only' is used. In the case where a component is expressed in the singular, the case including the plural is included unless otherwise explicitly stated.

In interpreting the components, even if there is no separate explicit description, it is interpreted as including the error range.

In the case of a description of a positional relationship, for example, when the positional relationship of two parts is described as 'on ~', 'on ~', 'on ~ below', 'next to', etc., one or more other parts may be located between the two parts unless 'immediately' or 'directly' is used.

When an element or layer is referred to as “on” another element or layer, it includes all cases where another element or layer is directly on top of another element or another layer or other element intervenes therebetween. Like reference numbers designate like elements throughout the specification.

The size and thickness of each component shown in the drawings are shown for convenience of description, and the present invention is not necessarily limited to the size and thickness of the illustrated components.

Each feature of the various embodiments of the present invention can be partially or entirely combined or combined with each other, and as those skilled in the art can fully understand, various interlocking and driving are possible technically, and each embodiment can be implemented independently of each other. It may be possible to implement together in a related relationship.

Among the accompanying drawings, FIG. 1 is a diagram showing a vehicle mobile document scanning device according to the present invention, FIG. 2 is an enlarged cross-sectional view showing a “leveling unit” in the vehicle mobile document scanning device according to the present invention, FIG. 3 is a sectional perspective view showing a “leveling unit” in the vehicle mobile document scanning device according to the present invention, FIG. 4 is a perspective view showing a “height adjusting device” in the vehicle mobile document scanning device according to the present invention, and FIG. Figure 6 is a rear perspective view showing the 'height adjusting device', Figure 6 is a side view showing the 'height adjusting device' in the vehicle mobile document scanning device according to the present invention, Figures 7 and 8 are front views showing the lifting operation of the first and second support plates of the height adjusting device in the vehicle mobile document scanning device according to the present invention, Figure 9 is a bottom perspective view showing the 'pressure control unit' according to another embodiment of the present invention, Figure 10 is a bottom perspective view showing the operation of the 'pressure control unit' of FIG. cross section shown.

A vehicle mobile document scanning device according to the present invention includes a vehicle portion C composed of a driver's seat 22 on which a driver rides and drives, and a trailer 24 connected to the rear of the driver's seat 22 and having a space therein; A work table 4 composed of a table 42 of a certain height and a post 44 supporting the table 42 and installed on the bottom plate of the trailer 24; A horizontal holding part (A) supporting the lower part of the work table 4 and formed on the bottom plate of the trailer 24, which is interlocked with the vibration to elevate the post 44 so that the height of the table 42 is maintained constant; A height adjusting device (B) that is seated on the top of the table 42 and can put books on it and adjusts the height of the bookshelf on both sides; It is formed in the inner space of the trailer 24 and has a scanner (S) disposed above the height adjusting device (B), and a scanning unit (6) having a support (S-2) for supporting the scanner (S).

The vehicle part C is composed of a driver's seat 22 on which a driver rides and drives, and a trailer 24 connected to the rear of the driver's seat 22 and having a space therein.

A work table 4 is formed inside the trailer 24, a height adjusting device B is mounted on the work table 4, and a scanning unit 6 is mounted on the top.

Preferably, a leveling unit (A) is provided to prevent vibration of the work table 4 and to ensure that the horizontal state is stably maintained.

2 and 3, the leveling unit (A) is shown in more detail.

The leveling unit (A) is mounted in a groove 240 formed in the bottom plate 242 of the trailer 24, and the first and second rods 261 and 262 are coupled to the upper and lower portions, respectively, and the cylinder unit 26 having an inlet port 263 and an outlet port 264 through which hydraulic pressure is drawn in or out, and a hydraulic hose connected to the inlet port 263 and the outlet port 264 to supply hydraulic pressure. part 27;

The hydraulic pressure supply unit 27 may be an air compressor that supplies high-pressure air, and the air compressor is driven by vehicle power.

In addition, the leveling unit A includes first and second sensors 266 and 267 in which the first rod 261 is supported under the support 44 and mounted on the inner wall of the groove 240 to sense the lifting operation of the first and second rods 261 and 262, and a control unit connected to the first and second sensors 266 and 267 to generate a signal to control the operation of the hydraulic pressure supply unit 27.

The first and second sensors 266 and 267 may be optical sensors including a light emitting part 266-1 mounted on the inner wall of the groove 240 and a light receiving part 266-2 formed on the first and second rods 261 and 262 and corresponding to the light emitting part 266-1.

Therefore, when the laser emitted from the light emitting unit 266-1 is irradiated to the light receiving unit 266-2 and the position of the light receiving unit 266-2 changes (elevation operation of the first and second rods 261 and 262), the movement can be detected immediately, and the detected signal is transmitted to the control unit.

For example, when the first rod 261 at the top is contracted by the descent of the post 44, the first sensor 266 senses it, and air is immediately injected to withdraw the first rod 261 to correct the lowered value. The value is corrected and raised to correspond to this, thereby preventing the post 44 from descending.

In addition, when the second rod 262 at the bottom is contracted, the second sensor 267 immediately senses it, transmits it to the control unit, and air is injected to correct the contracted value by withdrawing the second rod 262. Withdraw to prevent the column 44 from descending.

On the other hand, the height adjusting device B supports the bookshelves on both sides of the open book in an open state, and adjusts the height of the bookshelf on both sides.

The height adjusting device (B) will be described with reference to FIGS. 4 to 10 .

The height adjusting device (B) is a base plate (2) seated on the table (42); first and second support plates 10 and 20 disposed on both left and right sides and respectively supporting the bookshelves on both sides; first and second lifting actuators 100 and 200 connected to the lower portions of the base plate 2 and the first and second supporting plates 10 and 20, respectively, and adjusting the height by an lifting operation; It includes; an interlocking unit 300 that connects the first and second elevation driving units 100 and 200 so that each lifting operation is interlocked in opposite directions.

The first lift drive unit 100 includes a first shaft 104 having a plurality of support rings 102 supported on the base plate 2 formed on its outer surface, and a first support roller 111, one end of which is connected to the first shaft 104 and the other end of which is rolled while being in close contact with the bottom surface of the first support plate 10, the first connecting rod 110 connected to have a predetermined inclination angle, and one end of the first shaft 104. This is connected and the other end is formed with a second support roller 122 that rolls while being in close contact with the bottom surface of the second supporting plate 20, and is connected to have an inclination angle opposite to that of the first connecting member 110. It includes a second linking member 120.

The first shaft 104 is a rod body having a certain length, and four support rings 102 are formed on the outer circumferential surface, and the support rings 102 are formed larger than the diameter of the first shaft 104.

The first connecting rod 110 is rotatably connected by being hinged to one side of the first shaft 104 and is formed to have an inclination angle θ1 of 30 to 50°.

The second connecting rod 120 is disposed in the opposite direction to the first connecting rod 110 . That is, the second connecting rod 120 is rotatably connected by being hinged to the other side of the first shaft 104, and is formed to have an inclination angle θ2 of 130 to 150°.

The above inclination angle represents an angle toward the y-axis with respect to the x-axis.

The second lift drive unit 200 includes a second shaft 204 having a plurality of support rings 202 supported on the base plate 2 formed on the outer surface thereof and arranged in parallel with the first shaft 104, one end connected to the second shaft 204 and the other end connected to the first support plate 10 but having an inclination angle opposite to that of the first connection stand 110, a third connecting rod 230, It includes a fourth connecting rod 240 having one end connected to the second shaft 204 and the other end connected to the second supporting plate 20 and connected to have an inclination angle opposite to that of the second connecting rod 120.

The second shaft 204 is a rod body having a certain length, and four support rings 102 are formed on the outer circumferential surface, and the support rings 102 are formed larger than the diameter of the second shaft 204 .

The second shaft 204 is a rod body having a certain length, and four support rings 102 are formed on the outer circumferential surface, and the support rings 102 are formed larger than the diameter of the second shaft 204 .

The third connecting rod 230 is rotatably connected by being hinged to one side of the second shaft 204 and is formed to have an inclination angle of 130 to 150°.

The fourth connecting rod 240 is disposed in the opposite direction to the third connecting rod 230 . That is, the fourth connector 240 is rotatably connected by being hinged to the other side of the second shaft 204, and is formed to have an inclination angle of 30 to 50°.

The above inclination angle represents an angle toward the y-axis with respect to the x-axis.

Meanwhile, a first folding member 51 connected to the other end of the third connecting rod 230 and connected to the first support plate 10 is included.

It is also connected to the other end of the fourth connecting rod 240 and includes a second folding member 52 connected to the second support plate 20 .

The first folding member 51 or the second folding member 52 may be an elastic plate made of rubber so as to facilitate a bending operation.

Meanwhile, the interlocking unit 300 includes a first auxiliary support 400 and a second auxiliary support 500 .

The first auxiliary support 400 has one end connected to the lower portion of the first supporting plate 10 by a third folding member 53 and disposed inclined at an angle opposite to the first connecting rod 110, and a third shaft 420 having a third support ring 102 supported by the base plate 2 is formed at the other end.

The second auxiliary support 500 has one end connected to the lower portion of the second supporting plate 20 by a fourth folding member 54 and disposed inclined at an angle opposite to the second connecting rod 120, and a fourth shaft 520 having a fourth support ring 102 supported by the base plate 2 is formed at the other end.

Preferably, the third folding member 53 or the fourth folding member 54 may be an elastic plate made of rubber so as to facilitate a bending operation.

Referring to FIG. 1 , one side bookshelf P1 and the other side bookshelf P2 of a book are seated on the first support plate 10 and the second support plate 20, respectively, and a scanner S is positioned on top of them.

In the initial stage of scanning, since one side of the bookshelf P1 is thin and the other side is thick, the first support plate 10 is raised and the second support plate 20 is lowered by the weight.

7, when the second supporting plate 20 descends, the fourth connecting rod 240 and the second auxiliary support 500 rotate downward, and the second supporting roller 122 of the second connecting rod 120 also rotates downward while rolling on the bottom surface of the second supporting plate 20.

When the second connecting rod 120 rotates downward, the first shaft 104 rotates, and the first connecting rod 110 connected to the first shaft 104 rotates upward.

Since the first support roller 111 of the first connecting rod 110 pushes up while rolling the bottom surface of the first support plate 10, the first support plate 10 rotates upward.

In addition, the third connector 230 supporting the first support plate 10 rotates upward, and the first auxiliary support 400 also rotates upward.

Conversely, referring to FIG. 8 , as the scanning process gradually progresses, one side of the bookshelf P1 gradually becomes thicker and the other side of the bookshelf P2 becomes thinner, and when the first support plate 10 is lowered by the weight,

The third connecting rod 230 and the first auxiliary support 400 rotate downward, and the first connecting rod 110 also rotates downward while the first support roller 111 rolls on the bottom surface of the second support plate 20.

When the first connecting rod 110 rotates downward, the second shaft 204 rotates, and the second connecting rod 120 connected to the second shaft 204 rotates upward.

Since the second support roller 122 of the second connecting rod 120 pushes up while rolling the bottom surface of the second support plate 20, the second support plate 20 rotates upward.

In addition, the fourth connector 240 supporting the second support plate 20 rotates upward, and the second auxiliary support 500 also rotates upward.

The lifting and lowering operations of the first support plate 10 and the second support plate 20 are performed in opposition to each other, so that they can be performed in proportion to the variation in the thickness of one bookshelf P1 and the other bookshelf P2. Therefore, when one bookcase P1 is thin, the height of one support plate can be raised so that it can be corrected to the same height as the other bookshelf P2.

Meanwhile, FIGS. 9 and 10 show a height adjusting device B' according to another embodiment.

9 and 10, in the height adjusting device (B′) according to another embodiment, the first connecting rod 110 and the second connecting rod 120 or the third connecting rod 230 and the fourth connecting rod 240 are disconnected to form a spaced gap and are composed of upper and lower plates F1 and F2,

It may include; a pressure control unit 700 that pushes the upper plate member F1 and continuously adheres to the first support plate 10 or the second support plate 20 .

The pressure control unit 700 includes a step 720 formed at the end of the lower plate F2, a body 740 having a moving groove into which the step 720 is inserted, a spring 750 coupled to the inside of the body 740 to elastically support the step 720, and a fastener 760 screwed to the rear end of the body 740 and in close contact with the spring 750 to adjust tension. It is composed by

By tightening or loosening the fastener 760, the tension of the spring 750 can be adjusted and the upper plate member F1 connected thereto can move forward and backward, so that the gap can be adjusted.

Although the embodiments of the present invention have been described in more detail with reference to the accompanying drawings, the present invention is not necessarily limited to these embodiments, and may be variously modified and implemented without departing from the technical spirit of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention, but to explain, and the scope of the technical idea of the present invention is not limited by these embodiments. Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive. The protection scope of the present invention should be construed according to the claims below, and all technical ideas within the equivalent range should be construed as being included in the scope of the present invention.

Therefore, other implementations, other embodiments, and equivalents of the claims are within the scope of the following claims.

C: vehicle part 4: work table
6: scanning unit 22: driver's seat unit
24: trailer 27; Hydraulic supply part
42: Table 44: Shore
2: base plate 10: first support plate
20: second supporting plate 51: first folding member
52: second folding member 53: third folding member
54: 4th section steel member 100: 1st lifting drive unit
104: first shaft 110: first connecting rod
120: second connecting rod 200: second lift drive unit
204: second shaft 230: third connecting rod
240: 4th connector

Claims (3)

A vehicle portion composed of a driver's seat for which a driver rides and drives, and a trailer connected to the rear of the driver's seat and having a space therein;
A work table composed of a table of a certain height and a post supporting the table and installed on the bottom plate of the trailer;
a leveling unit that supports the lower part of the work table and is formed on the bottom plate of the trailer, and which is interlocked with vibration to raise and lower the support column so that the height of the table is maintained constant;
a height adjusting device seated on the top of the table, capable of placing books thereon, and adjusting the height of the bookshelves on both sides;
A vehicle movable document scanning device comprising: a scanner formed in the interior space of the trailer and disposed above the height adjusting device; and a scanning unit having a support for supporting the scanner,
The leveling unit
It is mounted in a groove formed on the bottom plate of the trailer, and the first and second rods are respectively coupled to the upper and lower parts, and a cylinder unit having an inlet port and an outlet port through which hydraulic pressure is introduced or withdrawn, and a hydraulic hose connected to the inlet port and the outlet port and supplying hydraulic pressure,
The first rod is supported on the lower part of the support, and first and second sensors are mounted on the inner wall of the groove to detect the lifting operation of the first and second rods, and a control unit is connected to the first and second sensors and generates a signal for controlling the operation of the hydraulic supply unit.
The height adjustment device
Base plate seated on the table;
first and second supporting plates disposed on both left and right sides and respectively supporting the bookshelves on both sides; first and second lifting actuators connected to lower portions of the base plate and the first and second support plates, respectively, and adjusting heights by a lifting operation;
A linkage unit connecting the first and second lift actuators so that each lift operation is interlocked in opposite directions;
The first lift drive part
A first shaft having a plurality of support rings supported on the base plate formed on an outer surface thereof;
A first connecting rod having one end connected to the first shaft and the other end having a first support roller that rolls while being in close contact with the bottom surface of the first support plate, and connected to have a predetermined inclination angle;
A second support roller having one end connected to the first shaft and the other end rolling while being in close contact with the bottom surface of the second support plate is formed, and is connected to have an inclination angle opposite to that of the first connection stand,
The second lift drive part
A second shaft having a plurality of support rings supported on the base plate formed on an outer surface thereof and arranged in parallel with the first shaft;
A third connecting rod having one end connected to the second shaft and the other end connected to the first supporting plate and having an inclination angle opposite to that of the first connecting rod;
A fourth linking rod having one end connected to the second shaft and the other end connected to the second support plate to have an inclination angle opposite to that of the second linking rod,
A first auxiliary support having one end connected to the lower part of the first support plate by a third folding member, inclined at an angle opposite to the first connecting rod, and a third shaft having a third support ring supported with the base plate formed at the other end;
A second auxiliary support having one end connected to the lower portion of the second support plate by a fourth folding member, inclined at an angle opposite to the second connecting rod, and a fourth shaft having a fourth support ring supported with a base plate formed at the other end;
Vehicle mobile document scanning device comprising a.
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