ATTACHMENT TYPE SCRAPER DEVICE FOR IMPROVEMENT IN SCRAPING EFFICIENCY

Description

BACKGROUND OF THE INVENTION

Field of the Invention

The present invention relates to an attachment type scraper device for improvement in scraping efficiency, and more particularly, to a scraper device detachably mounted on construction equipment such as a skid-steer loader so as to scrape and remove floor materials such as urethane, concrete, and asphalt installed on the road or ground, in which the scraper device is configured to repeatedly move, when scraping the floor materials off the road or ground, a floor material removal blade in the forward-and-rearward direction so as to improve scraping efficiency, and to reuse the existing removal blade without replacing the same with a new removal blade in such a manner that, when the removal blade is worn out, a worn portion of the removal blade is readily reversed so as to use an unworn portion of the removal blade.

Description of the Related Art

Recently, as a result of the remarkable development of science and technology, great progress has been achieved in the construction fields such as civil or structural engineering, architecture, and mechanical or electrical engineering. Accordingly, large-scale buildings and facilities have been actively constructed.

Particularly, after floor materials such as urethane, concrete, and asphalt are installed on the road or ground, it is necessary to remove the floor materials from the floor surface when the floor materials become old or are damaged due to ageing of floor materials.

In the past, in order to remove floor materials such as urethane, concrete, and asphalt installed on the road or the ground from the floor surface, workers used a floor material removal apparatus to manually remove the floor materials, leading to deterioration in work efficiency and significant working hours.

In order to solve the above-described problem, recently, an attachment type scraper device capable of being attached to and detached from construction equipment such as a skid-steer loader has been developed and used.

An attachment type scraper device of the related art uses propulsion force of construction equipment such as a skid-steer loader so as to push the floor surface in a state in which one or more floor material removal blades are mounted on the scraper device, thereby removing a floor material from the floor surface. Meanwhile, when the floor surface is not flat or the floor material is fixed to the floor surface with a large fixing force, there is a problem in that the floor material may not be smoothly removed from the floor surface only using propulsion force of construction equipment such as a skid-steer loader.

In addition, when the floor material is scraped off the floor surface, a lower portion of the floor material removal blade is worn out. Here, when the lower portion is worn out by a predetermined amount, the floor material removal blade needs to be replaced with a new removal blade. In this case, a floor material removal blade is frequently replaced with a new removal blade due to the short replacement cycle of the floor material removal blade, which causes an increase in floor material removal costs.

Therefore, in order to solve the above-described problems, the present invention proposes a technique related to a scraper device detachably mounted on construction equipment such as a skid-steer loader so as to scrape and remove floor materials such as urethane, concrete, and asphalt installed on the road or ground, in which the scraper device is configured to repeatedly move, when scraping the floor materials off the road or ground, a floor material removal blade in the forward-and-rearward direction so as to improve scraping efficiency, and to reuse the existing removal blade without replacing the same with a new removal blade in such a manner that, when the removal blade is worn out, a worn portion of the removal blade is readily reversed so as to use an unworn portion of the removal blade. The following Patent Documents disclose prior art related to the scraper device.

RELATED ART DOCUMENT

Patent Document

• • Patent Document 1: Korean Patent No. 10-0794396 (titled “FLOOR MATERIAL REMOVAL DEVICE”)
  • Patent Document 2: Korean Patent No. 10-0891420 (titled “FLOOR REMOVAL DEVICE”)
  • Patent Document 3: Korean Patent Laid-Open Publication No. 10-2021-0009638 (titled “FLOOR MATERIAL REMOVAL DEVICE”)

SUMMARY OF THE INVENTION

Therefore, the present invention has been made in view of the above problems, and it is an object of the present invention to provide a scraper device detachably mounted on construction equipment such as a skid-steer loader so as to scrape and remove floor materials such as urethane, concrete, and asphalt installed on the road or ground and configured to repeatedly move, when scraping the floor materials off the road or ground, a floor material removal blade in the forward-and-rearward direction so as to remove the floor materials.

It is another object of the present invention to provide a scraper device configured to reuse the existing removal blade without replacing the same with a new removal blade in such a manner that, when the removal blade is worn out, a worn portion of the removal blade is readily reversed so as to use an unworn portion of the removal blade.

In accordance with the present invention, the above and other objects can be accomplished by the provision of an attachment type scraper device for improvement in scraping efficiency, the attachment type scraper device including

• • a base part configured to allow the scraper device to be detachably attached to construction equipment, wherein the base part provides a space allowing tension providing parts and a removal blade vibrating part to be installed therein,
  • the tension providing parts configured to provide tension to a plurality of horizontal removal blades respectively provided in scraper parts so as to enable the horizontal removal blades to maintain, when scraping a floor material off a floor surface, contact tension with respect to the floor surface,
  • a plurality of the scraper parts respectively including the plurality of horizontal removal blades, each of the horizontal removal blades being configured to scrape the floor material off the floor surface in a state of maintaining the contact tension with respect to the floor surface by the tension provided by the tension providing part, and
  • the removal blade vibrating part configured to vibrate, in a forward-and-rearward direction, the horizontal removal blades respectively formed in the plurality of scraper parts.

BRIEF DESCRIPTION OF THE DRAWINGS

The above and other objects, features, and other advantages of the present invention will be more clearly understood from the following detailed description taken in conjunction with the accompanying drawings, in which:

FIG. 1 is an exemplary view of the use of the present invention;

FIG. 2 is a detailed configuration view of the present invention;

FIG. 3 is a detailed configuration view of a base part of the present invention;

FIG. 4 is a detailed configuration view of a tension providing part of the present invention;

FIG. 5 is a detailed configuration view of a scraper part of the present invention;

FIG. 6 is an exemplary view of the operation of the scraper part of the present invention;

FIG. 7 is a detailed configuration view of a removal blade vibrating part of the present invention;

FIG. 8 is a detailed configuration view of a bearing part of the present invention; and

FIG. 9 is an exemplary view of the operation of the removal blade vibrating part of the present invention.

DETAILED DESCRIPTION OF THE INVENTION

Embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The present invention provides an attachment type scraper device for improvement in scraping efficiency (hereinafter referred to as the present invention). The present invention is detachably mounted on construction equipment such as a skid-steer loader so as to scrape and remove floor materials such as urethane, concrete, and asphalt installed on the road or ground and is configured to repeatedly move, when scraping the floor materials off the road or ground, a floor material removal blade in the forward-and-rearward direction, thereby having an effect of improving scraping efficiency. Further, the present invention is capable of reusing the existing removal blade without replacing the same with a new removal blade in such a manner that, when the removal blade is worn out, a worn portion of the removal blade is readily reversed so as to use an unworn portion of the removal blade, thereby having an effect of preventing construction delays caused by removal blade replacement work and reducing removal blade replacement costs. As shown in FIG. 2, the scraper device of the present invention includes a base part 100, a tension providing part 200, a scraper part 300, and a removal blade vibrating part 400.

Specifically, as shown in FIG. 2, the attachment type scraper device for improvement in scraping efficiency of the present invention includes

• • the base part 100 configured to allow the scraper device to be detachably attached to construction equipment 1, in which the base part provides a space allowing the tension providing parts 200 and the removal blade vibrating part 400 to be installed therein,
  • the tension providing parts 200 configured to provide tension to a plurality of horizontal removal blades 340 respectively provided in the scraper parts 300 so as to enable the horizontal removal blades 340 to maintain, when scraping a floor material off a floor surface, contact tension with respect to the floor surface,
  • a plurality of the scraper parts 300 respectively including the plurality of horizontal removal blades 340 each configured to scrape the floor material in a state of maintaining the contact tension with respect to the floor surface by the tension provided by the tension providing part 200, and
  • the removal blade vibrating part 400 configured to vibrate, in the forward-and-rearward direction, the horizontal removal blades 340 respectively formed in the plurality of scraper parts 300.

The base part 100 is configured to allow the scraper device to be detachably attached to the construction equipment 1, and to provide a space allowing the tension providing part 200 and the removal blade vibrating part 400 to be installed therein. As shown in FIG. 1, the base part 100 allows the scraper device of the present invention to be detachably attached to the construction equipment 1 such as a skid-steer loader, as an attachment type. Further, the base part 100 has a space formed therein and configured to allow the tension providing part 200 and the removal blade vibrating part 400 to be installed therein.

Specifically, as shown in FIG. 3, the base part 100 includes

• • an L-shaped base body 110 having a constant width and height, in which the base body is formed of a vertical body 111 and a horizontal body 112,
  • a plurality of hinge coupling parts 120 formed on the inner surface of the vertical body 111 of the base body 110 and configured to allow press arms 210 of the tension providing part 200 to be respectively hinged thereto,
  • a device coupling part 130 formed on the outer surface of the vertical body 111 of the base body 110 so as to detachably couple the base body 110 to the construction equipment 1,
  • a base cover 140 formed on the upper surface of the base body 110 so as to cover the base body 110, and
  • a motor installation part 150 formed on the inner surface of the vertical body 111 of the base body 110 so as to allow a motor 410 of the removal blade vibrating part 400 to be installed therein.

The base body 110 has an L-shape with a constant width and height and is formed of the vertical body 111 and the horizontal body 112. As shown in FIG. 3, the vertical body 111 is vertically formed on the upper side of the horizontal body 112, thereby forming an L-shape.

The tension providing parts 200 and the removal blade vibrating part 400 are installed in the inner space of the L-shaped base body 110 that is formed of the vertical body 111 and the horizontal body 11.

The present invention has a plurality of the hinge coupling parts 120 formed on the inner surface of the vertical body 111 of the base body 110 such that the press arms 210 respectively provided in the tension providing parts 200 are hinged to the respective hinge coupling parts 120. As shown in FIG. 3, the press arms 210 are hinged to the respective hinge coupling parts 120.

The device coupling part 130 is configured to be formed on the outer surface of the vertical body 111 of the base body 110 so as to allow the base body 110 to be detachably coupled to the construction equipment 1. The base body 110 is detachably coupled to the construction equipment 1, such as a skid-steer loader, using the device coupling part 130. In this manner, the scraper device of the present invention is detachably coupled to the construction equipment 1 such as a skid-steer loader.

The base cover 140 is configured to be formed on the upper side of the base body 110 to cover the base body 110. The base cover 140 is formed on the upper side of the base body 110 to protect the components installed in the base body 110 from the external environment.

In addition, a plurality of press arm through holes 141 is formed on the front side of the base cover 140 such that the press arms 210 of the tension providing part 200 are partially exposed to the outside through the respective arm through holes 141, as shown in FIG. 1.

The motor installation part 150 is a kind of motor installation bracket formed on the inner surface of the vertical body 111 of the base body 110 so as to allow the motor 410 of the removal blade vibrating part 400 to be installed therein.

The tension providing parts 200 are configured to provide tension to a plurality of the horizontal removal blades 340 such that the horizontal removal blades 340 of the scraper part 300 may maintain, when scraping a floor material off the floor surface, contact tension with respect to the floor surface. As shown in FIG. 4, the tension providing parts 200 include a plurality of the press arms 210 respectively hinged to the hinge coupling parts 120 of the base part 100, and a plurality of press arm guides 220 each having a linear guide groove formed therein and configured to enable a corresponding one of the press arms 210 to be rotated upwards and downwards.

The tension providing parts 200 provide tension to the plurality of horizontal removal blades 340 using hydraulic pressure, as shown in A of FIG. 4, or provide tension to the plurality of horizontal removal blades 340 using spring tension, as shown in B of FIG. 4.

When the press arms 210 respectively press the plurality of horizontal removal blades 340 toward the ground with predetermined pressure by hydraulic pressure or spring tension, the plurality of horizontal removal blades 340 comes into contact with the floor surface with predetermined contact tension. Then, when the construction equipment 1 such as a skid-steer loader moves forwards in this state, a floor material is separated and removed from the floor surface by forward propulsion force of the construction equipment.

The plurality of scraper parts 300 is configured to include the plurality of horizontal removal blades 340 each configured to scrape a floor material off the floor surface in a state of maintaining contact tension with respect to the floor surface by tension provided by the tension providing part 200. As shown in FIG. 5, each of the plurality of scraper parts 300 includes

• • a cylindrical-shaped cylinder 310 coupled to the lower side of a tip portion of the press arm 210 and formed to have an inner space defined therein, in which the cylindrical-shaped cylinder has a pair of insertion grooves 311 formed in an edge of a tip portion thereof and configured to allow the rear end of a lower removal blade coupling part 332 of a removal blade coupling part 330 to be inserted thereinto,
  • a cylindrical rotation shaft 320 installed in the cylindrical-shaped cylinder 310 so as to be freely rotatable therein in a state of passing through an inside of the cylindrical-shaped cylinder, in which the cylindrical rotation shaft has a front end and a rear end, the front end being coupled to the lower removal blade coupling part 332 of the removal blade coupling part 330, the rear end contacting a bearing outer ring 4522 of the removal blade vibrating part 400, and repeatedly performs forward-and-rearward movement according to eccentric movement of the bearing outer ring 4522 in a state of contacting the bearing outer ring 4522,
  • the removal blade coupling part 330 formed of an upper removal blade coupling part 331 and the lower removal blade coupling part 332 such that the horizontal removal blade 340 is inserted into and coupled to the removal blade coupling part, in which the lower removal blade coupling part 332 is coupled to a tip portion of the rotation shaft 320,
  • the horizontal removal blade 340 coupled to the removal blade coupling part 330 and configured to maintain contact tension with respect to the floor surface by the tension provided by the tension providing part 200, in which the horizontal removal blade is freely rotatable within a predetermined rotation range and scrapes, in a state of contacting the floor surface, the floor material off the floor surface while vibrating in the forward-and-rearward direction according to the forward-and-rearward movement of the rotation shaft 320,
  • a stopper 350 coupled to a rear portion of the rotation shaft 320, in which the stopper maintains a pressurized contact state with a pair of bearing mounts 440 by tension of a spring 360, and, when the rotation shaft 320 is moved in the forward-and-rearward direction by the eccentric movement of the bearing outer ring 4522, the stopper is repeatedly separated from and brought into contact with the pair of bearing mounts 440, and
  • the spring 360 inserted into the rear portion of the rotation shaft 320 such that one end of the spring is caught on the stopper 350 and the other end thereof is caught on an inner locking jaw of the cylindrical-shaped cylinder 310, thereby providing rearward restoring force to the rotation shaft 320.

The cylindrical-shaped cylinder 310 is coupled to the lower side of the tip portion of the press arm 210 and has an inner space formed therein. Further, the cylindrical-shaped cylinder has the pair of insertion grooves 311 formed in the edge of the tip portion thereof so as to allow the rear end of the lower removal blade coupling part 332 of the removal blade coupling part 330 to be inserted thereinto.

As shown in FIG. 7, the cylindrical-shaped cylinder 310 is coupled to the lower side of the tip portion of the press arm 210. Furthermore, the cylindrical-shaped cylinder 310 transmits upward-and-downward tension transmitted through the press arm 210 to the horizontal removal blade 340 during floor material scraping work such that each of the horizontal removal blades 340 contacts the floor surface with predetermined contact tension.

In addition, the rotation shaft 320 is inserted into an inner space of the cylindrical-shaped cylinder 310 so as to be freely rotatable therein in a state of passing through the inner space, and the pair of insertion grooves 311 is formed in the edge of the tip portion of the cylindrical-shaped cylinder. In this manner, the rear end of the lower removal blade coupling part 332 of the removal blade coupling part 330 is inserted into the pair of insertion grooves, as shown in FIG. 5.

In particular, each of the pair of insertion grooves 311 formed in the cylindrical-shaped cylinder 310 has a width formed to restrict free rotation of the horizontal removal blade 340 to a predetermined rotation range.

The removal blade coupling part 330 is coupled to the tip portion of the rotation shaft 320 that is inserted into the cylindrical-shaped cylinder 310 so as to be freely rotatable therein, and the horizontal removal blade 340 is coupled to the removal blade coupling part 330.

Therefore, the horizontal removal blade 340 is in a freely rotatable state. Meanwhile, when the horizontal removal blade 340 is in the freely rotatable state, scraping efficiency deteriorates when scraping work is performed to separate the floor material from the floor surface.

That is, it is necessary to restrict free rotation of the horizontal removal blade 340 to a predetermined rotation range. To this end, each of the pair of insertion grooves 311 into which the rear end of the lower removal blade coupling part 332 of the removal blade coupling part 330 having the horizontal removal blade 340 coupled thereto is inserted has a width formed to restrict free rotation of the horizontal removal blade 340 to a predetermined rotation range.

In addition, each of the pair of insertion grooves 311 formed in the cylindrical-shaped cylinder 310 has a depth formed to be larger than a forward distance of the horizontal removal blade 340 configured to vibrate forwards and rearwards for scraping work, and the depth is formed to be smaller than a distance between the rear end of the cylindrical-shaped cylinder 310 and the stopper 350 in contact with the pair of bearing mounts 440 such that the horizontal removal blade 340 is rotatable 180 degrees.

In order to perform floor material scraping work, the horizontal removal blade 340 vibrates forwards and rearwards, as shown in FIG. 7. Here, the rear end of the lower removal blade coupling part 332 of the removal blade coupling part 330 to which the horizontal removal blade 340 vibrating forwards and rearwards is coupled is not completely removed from the pair of insertion grooves 311 during floor material scraping work. On other hand, the rear end of the lower removal blade coupling part 332 is completely removed from the pair of insertion grooves 311 when the horizontal removal blade 340 is rotated 180 degrees for reuse thereof.

For reuse of the horizontal removal blade 340, one side portion of which is worn out, the horizontal removal blade 340, one side portion of which is worn out, is rotated 180 degrees such that an unworn portion on the other side of the horizontal removal blade is used for floor material scraping work.

To this end, as shown in the state “1” of FIG. 6, the horizontal removal blade 340, the worn portion of which faces the floor surface, is in the state of being coupled to the removal blade coupling part 330. Then, as shown in the state “2” of FIG. 6, when the removal blade coupling part 330 is pulled out by hand, the rear end of the lower removal blade coupling part 332 of the removal blade coupling part 330 is completely removed from the pair of insertion grooves 311. Here, when the removal blade coupling part 330 is rotated 180 degrees in this state, an unworn portion of the horizontal removal blade 340 faces the floor surface, as shown in the state “3” of FIG. 6. When the hand is released from the removal blade coupling part 330 in this state, the rear end of the lower removal blade coupling part 332 of the removal blade coupling part 330 is inserted into the pair of insertion grooves 311 again by the spring 360, as shown in the state “4” of FIG. 6. In this manner, the unworn portion of the horizontal removal blade 340 may be used to scrape a floor material off the floor surface.

As described above, the rear end of the lower removal blade coupling part 332 of the removal blade coupling part 330 to which the horizontal removal blade 340 is coupled is not completely removed from the pair of insertion grooves 311 during floor material scraping work. On the other hand, in order to reuse the horizontal removal blade 340, the rear end of the lower removal blade coupling part 332 of the removal blade coupling part 330 is completely removed from the pair of insertion grooves 311. In order to achieve such a configuration, as shown in FIG. 6, a depth S1 of the pair of insertion grooves 311 is formed to be larger than a forward distance S3 of the horizontal removal blade 340 configured to vibrate forwards and rearwards for scraping work. Further, the depth S1 is formed to be smaller than a distance S2 between the stopper 350 in contact with the pair of bearing mounts 440 and the rear end of the cylindrical-shaped cylinder 310.

In this structural configuration, the cylindrical rotation shaft 320 is installed in the cylindrical-shaped cylinder 310 so as to be freely rotatable therein in a state of passing through the inside of the cylindrical-shaped cylinder 310, the tip portion of the rotation shaft 320 is coupled to the lower removal blade coupling part 332 of the removal blade coupling part 330, and the rear end thereof contacts the bearing outer ring 4522 of the removal blade vibrating part 400. Here, the cylindrical rotation shaft 320 repeatedly performs forward-and-rearward vibration according to eccentric movement of the bearing outer ring 4522 in a state in which the rear end of the cylindrical rotation shaft is in contact with the bearing outer ring 4522.

Referring to FIG. 5, the rotation shaft 320 is installed in the cylindrical-shaped cylinder 310 so as to be freely rotatable therein in a state of passing through the inside of the cylindrical-shaped cylinder 310. Meanwhile, during floor material scraping work, as described above, rotation of the rotation shaft 320 is also restricted to a predetermined rotation range by the horizontal removal blade 340, the rotation of which is restricted to a predetermined rotation range by a predetermined width of the pair of insertion grooves 311. On the other hand, when the horizontal removal blade 340, one side portion of which is worn out, is rotated 180 degrees for reuse thereof, the rotation shaft 320 is rotated 180 degrees.

In addition, the lower removal blade coupling part 332 of the removal blade coupling part 330 is coupled to the tip portion of the rotation shaft 320, and the stopper 350 is coupled to the rear portion of the rotation shaft 320 in a state in which the spring 360 is coupled to the rear portion of the rotation shaft.

Additionally, since the rear portion of the rotation shaft 320 is in contact with the bearing outer ring 4522 of the removal blade vibrating part 400, the rotation shaft 320 repeatedly performs forward-and-rearward vibration according to eccentric movement of the bearing outer ring 4522.

The removal blade coupling part 330 is formed of the upper removal blade coupling part 331 and the lower removal blade coupling part 332 such that the horizontal removal blade 340 is inserted into and coupled to the removal blade coupling part.

That is, the horizontal removal blade 340 is inserted into a space defined between the upper removal blade coupling part 331 and the lower removal blade coupling part 332 such that the horizontal removal blade 340 is coupled to the removal blade coupling part 330, and the lower removal blade coupling part 332 is coupled to the tip portion of the rotation shaft 320.

The horizontal removal blade 340 is configured to be coupled to the removal blade coupling part 330, to maintain contact tension with respect to the floor surface by tension provided by the tension providing part 200, to be freely rotatable within a predetermined rotation range, and to scrape, in a state of contacting the floor surface, the floor material off the floor surface while vibrating in the forward-and-rearward direction according to forward-and-rearward movement of the rotation shaft 320.

During floor material removal work, since one side portion of the horizontal removal blade 340 is in contact with the floor surface, the one side portion is worn out. As described above, the removal blade coupling part 330 to which the horizontal removal blade 340 is coupled is rotated 180 degrees so as to use an unworn portion (that is, the other side portion) of the horizontal removal blade 340 for floor material scraping work. In this manner, even though one side portion of the horizontal removal blade 340 is worn out, the horizontal removal blade 340 may be reused by using the other side portion thereof.

The stopper 350 is coupled to the rear portion of the rotation shaft 320 and maintains a pressurized contact state with the pair of bearing mounts 440 by tension of the spring 360. Here, when the rotation shaft 320 performs forward-and-rearward movement according to eccentric movement of the bearing outer ring 4522, the stopper 350 is configured to be repeatedly separated from and brought into contact with the pair of bearing mounts 440.

That is, as shown in A of FIG. 7, the stopper 350 maintains a pressurized contact state with the pair of bearing mounts 440 by tension of the spring 360. As shown in B of FIG. 7, when the rotation shaft 320 is moved forwards by eccentric movement of the bearing outer ring 4522, the stopper 350 is separated from the pair of bearing mounts 440. As shown in C of FIG. 7, when the rotation shaft 320 is moved rearwards by eccentric movement of the bearing outer ring 4522, the stopper 350 is brought into pressurized contact with the pair of bearing mounts 440 again.

The spring 360 is fitted to the rear portion of the rotation shaft 320 such that one end of the spring is caught by the stopper 350 and the other end thereof is caught by the inner locking jaw of the cylindrical-shaped cylinder 310, thereby providing rearward restoring force to the rotation shaft 320.

That is, as shown in FIG. 7, when the rotation shaft 320 is moved forwards by eccentric movement of the bearing outer ring 4522 in the forward direction of the horizontal removal blade 340, the spring 360 is compressed, and when the bearing outer ring 4522 is moved eccentrically in the rearward direction of the horizontal removal blade 340, the spring 360 provides rearward restoring force to the rotation shaft 320 so as to move the rotation shaft 320 rearwards.

The removal blade vibrating part 400 is configured to vibrate, in the forward-and-rearward direction, the horizontal removal blades 340 respectively formed in the plurality of scraper parts 300. Specifically, as shown in FIG. 8, the removal blade vibrating part 400 includes

• • the motor 410 installed in the motor installation part 150 of the base part 100 and configured to generate rotational driving force to rotate a rotation rod 430,
  • a power transmission device 420 configured to transmit the rotational driving force of the motor 410 to the rotation rod 430,
  • the rotation rod 430 installed through eccentric cams 453 respectively provided in eccentric bearing parts 450, in which the rotation rod is rotated by the rotational driving force of the motor 410 transmitted by the power transmission device 420,
  • a plurality of the bearing mounts 440 each formed on the upper surface of the horizontal body 112 of the base body 110, in which each of the plurality of pairs of bearing mounts is installed for a corresponding one of the plurality of scraper parts 300, and each of the bearing mounts has a through hole 441 formed therein, and
  • the eccentric bearing parts 450 each installed on a corresponding one of the plurality of pairs of bearing mounts 440, in which each of the eccentric bearing parts moves, according to rotation of the rotation rod 430, a corresponding one of the rotation shafts 320 of the scraper parts 300 respectively installed on the eccentric bearing parts in the forward-and-rearward direction.

As shown in FIG. 3, the motor 410 is installed in the motor installation part 150 of the base part 100 and is configured to generate rotational driving force for rotation of the rotation rod 430.

The power transmission device 420 is configured to transmit rotational driving force of the motor 410 to the rotation rod 430. Here, the power transmission device includes a belt 421 configured to transmit rotational driving force of the motor 410 to a gear-shaped rotation wheel 422, and the gear-shaped rotation wheel 422 installed on the rotation rod 430 so as to rotate the rotation rod 430 by rotational driving force of the motor 410 transmitted by the belt 421.

The rotation rod 430 is configured to be installed through the eccentric cams 453 of the eccentric bearing parts 450 and to be rotated by rotational driving force of the motor 410 transmitted by the power transmission device 420.

As shown in FIG. 7, the rotation rod 430 is formed to have a predetermined length and is installed through the eccentric cams 453 of a plurality of the eccentric bearing parts 450 installed with a predetermined interval therebetween. Further, the rotation rod 430 is rotated by rotational driving force of the motor 410 to eccentrically rotate the eccentric cams 453.

The plurality of bearing mounts 440 is formed on the upper surface of the horizontal body 112 of the base body 110. Here, each of the plurality of pairs of bearing mounts is installed for a corresponding one of the plurality of scraper parts 300, and each of the bearing mounts has the through hole 441 formed therein.

As shown in FIG. 8, the plurality of bearing mounts 440 is formed on the upper surface of the horizontal body 112 of the base body 110 with a predetermined interval therebetween such that each of the plurality of pairs of bearing mounts is installed for a corresponding one of the plurality of scraper parts 300. Further, each of the bearing mounts 440 has a bearing installation unit 451 coupled thereto.

In addition, the through hole 441 is formed in each of the bearing mounts 440, and the eccentric cam 453 is installed through the through hole 441.

Each of the eccentric bearing parts 450 is installed in a corresponding one of the plurality of pairs of bearing mounts 440 and is configured to move, according to rotation of the rotation rod 430, a corresponding one of the rotation shafts 320 of the scraper parts 300 respectively installed on the eccentric bearing parts in the forward-and-rearward direction.

Specifically, as shown in FIG. 9, each of the eccentric bearing parts 450 includes

• • the bearing installation unit 451 configured to allow the eccentric cam 453 to be installed therethrough and coupled to the bearing mount 440,
  • a bearing 452 including a bearing inner ring 4521 eccentrically rotated by eccentric rotation of the eccentric cam 453, the bearing outer ring 4522 eccentrically moved by eccentric rotation of the bearing inner ring 4521, and a bearing ball 4523 formed between the bearing inner ring 4521 and the bearing outer ring 4522, and
  • the eccentric cam 453 having a rotation rod through-hole 4531 eccentrically formed therein and configured to allow the rotation rod 430 to pass therethrough, in which the eccentric cam 453 is installed through the bearing inner ring 4521 and the bearing installation unit 451 and is eccentrically rotated by rotation of the rotation rod 430.

The bearing installation unit 451 is configured to allow the eccentric cam 453 to be installed therethrough and to be coupled to the bearing mount 440.

As shown in FIG. 9, the bearing installation unit 451 is coupled to the bearing mount 440 so as to allow the eccentric cam 453 to be installed therethrough and supports the eccentric cam 453 installed through the bearing installation unit such that the excentric cam stably performs eccentric rotation thereof.

The bearing 452 is configured to include the bearing inner ring 4521 eccentrically rotated by eccentric rotation of the eccentric cam 453, the bearing outer ring 4522 eccentrically moved by eccentric rotation of the bearing inner ring 4521, and the bearing ball 4523 formed between the bearing inner ring 4521 and the bearing outer ring 4522.

When the eccentric cam 453 to be described later is eccentrically rotated, the bearing inner ring 4521 having the eccentric cam 453 installed therethrough is eccentrically rotated, and the bearing outer ring 4522 is eccentrically moved by eccentric rotation of the bearing inner ring 4521.

Eccentric movement of the bearing outer ring 4522 includes eccentric movement in the forward direction of the horizontal removal blade 340 and eccentric movement in the rearward direction of the horizontal removal blade 340.

That is, when the bearing outer ring 4522 is eccentrically moved in the forward direction of the horizontal removal blade 340 by eccentric rotation of the bearing inner ring 4521, as shown in B of FIG. 7, the rotation shaft 320 in contact with the bearing outer ring 4522 is moved forwards and, as such, the horizontal removal blade 340 located at the tip portion of the rotation shaft 320 is moved forwards. On the other hand, when the bearing outer ring 4522 is eccentrically moved in the rearward direction of the horizontal removal blade 340 by eccentric rotation of the bearing inner ring 4521, as shown in C of FIG. 7, the rotation shaft 320 in contact with the bearing outer ring 4522 is moved rearwards along the bearing outer ring 4522 due to tension of the spring 360 and, as such, the horizontal removal blade 340 located at the tip portion of the rotation shaft 320 is moved rearwards.

Eccentric rotation of the eccentric cam 453 causes the horizontal removal blade 340 to perform forward-and-rearward vibration in which forward-and-rearward movement of the horizontal removal blade 340 is repeatedly performed, thereby improving floor material scraping efficiency.

The eccentric cam 453 has the rotation rod through-hole 4531 eccentrically formed therein and configured to allow the rotation rod 430 to pass therethrough. Here, the eccentric cam 453 is configured to be installed through the bearing inner ring 4521 and the bearing installation unit 451 and to be eccentrically rotated by rotation of the rotation rod 430.

As shown in FIG. 9, since the eccentric cam 453 has the rotation rod through-hole 4531 eccentrically formed therein and configured to allow the rotation rod 430 to pass therethrough, the eccentric cam 453 is eccentrically rotated by rotation of the rotation rod 430 passing through the rotation rod through-hole 4531.

The bearing inner ring 4521 having the eccentric cam 453 installed therethrough is eccentrically rotated by eccentric rotation of the eccentric cam 453, and the bearing outer ring 4522 is eccentrically moved by eccentric rotation of the bearing inner ring 4521.

As is apparent from the above description, the present invention provides a scraper device detachably mounted on construction equipment such as a skid-steer loader so as to scrape and remove floor materials such as urethane, concrete, and asphalt installed on the road or ground and configured to repeatedly move, when scraping the floor materials off the road or ground, a floor material removal blade in the forward-and-rearward direction so as to remove the floor materials, thereby having an effect of improving scraping efficiency.

Additionally, the scraper device of the present invention is configured to reuse the existing removal blade without replacing the same with a new removal blade in such a manner that, when the removal blade is worn out, a worn portion of the removal blade is readily reversed so as to use an unworn portion of the removal blade, thereby having an effect of preventing construction delays caused by removal blade replacement work and reducing removal blade replacement costs.

Although a technical idea of the present invention has been described with reference to the accompanying drawings, it should be noted that the described technical idea is an example of a preferred embodiment of the present invention and is not intended to limit the scope of the present invention. It will be apparent to those skilled in the art that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims.