KR20160138638A - Curtain Type Sealed Cargo Box Cover using Fiber Sheet - Google Patents

Curtain Type Sealed Cargo Box Cover using Fiber Sheet Download PDF

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Publication number
KR20160138638A
KR20160138638A KR1020150072719A KR20150072719A KR20160138638A KR 20160138638 A KR20160138638 A KR 20160138638A KR 1020150072719 A KR1020150072719 A KR 1020150072719A KR 20150072719 A KR20150072719 A KR 20150072719A KR 20160138638 A KR20160138638 A KR 20160138638A
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South Korea
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shaft
take
fiber sheet
width direction
longitudinal
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KR1020150072719A
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Korean (ko)
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KR101703893B1 (en
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고창석
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고창석
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
    • B60P7/00—Securing or covering of load on vehicles
    • B60P7/02—Covering of load

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)

Abstract

According to the present invention, a curtain-type closed load box lid including a high-strength fiber sheet comprises: a pair of longitudinal direction frames (10) coupled to upper end edges of a load box (200) arranged in a longitudinal direction; a pair of width direction frames (20) installed to be perpendicular to the longitudinal direction frames (10), and coupled to the upper end edges of the load box (200) arranged in a widthwise direction; a first winding shaft (30) arranged in one of the longitudinal frames (10) to be extended in the longitudinal direction, and installed to rotate; a fiber sheet (40) which has an end fixated to the first winding shaft (30) to be wound around or unwound from the first winding shaft (30); a roll pipe (50) fixated to the other end of the fiber sheet (40) and conveyed along the widthwise direction frames (20) in the widthwise direction to convey the fixated fiber sheet (40) and open the upper end of the load box (200); a second winding shaft (60) arranged on the other one of the longitudinal frames (10) to be extended in the longitudinal direction and installed to rotate; a pair of wires (70) wound around or unwound from the second winding shaft (60) in accordance with the rotation of the second winding shaft (60); a first driving motor (80) rotating the first winding shaft (30); and a second driving motor (90) winding the second winding shaft (60).

Description

[0001] The present invention relates to a curtain type sealed cargo box cover using a high strength fiber sheet,

The present invention relates to a curtain type closed-type lid cover using a high-strength fiber sheet, and more particularly, to a lid cover of a curtain type using a high-strength fiber sheet, The present invention relates to a curtain type closed-type lid cover.

Generally, the loading box is installed at the rear of the car's car to load cargo.

Today, in Korea, where dump trucks are generalized, there is no enclosed trucks and formal tent carvers are used. As a result, fugitive dust and odors are generated at the time of driving the vehicle, causing serious environmental problems. There are many cases where roads are polluted and subsequent vehicles are subjected to traffic accidents.

 In the case of vehicles transporting waste, many complaints arise due to scattered dust and odors generated from waste. The Ministry of Environment and others are trying various solutions to solve these problems, but there is no proper alternative.

In order to solve these problems, legislation is being made in order to shut down the loading boxes in Korea.

Generally, the loading box is provided with a cover (opening and closing door) for opening and closing the loading box. There have been many applications for a method of automatically opening and closing the cover.

As a method for opening and closing the lid, there is a method of opening and closing the lid in two directions with the center portion being divided in two directions, and a method of opening and closing the lid by moving the lids in a sliding manner.

As a method of folding and spreading the cover in two directions centering on the center portion in a manner that the cover is divided into two halves, there is a method in which the cover is divided into two halves by using a sprocket, a chain and a driving motor, But it can not prevent the scattered dust and odor from being generated because it is not completely sealed, it is easily damaged and lost its function due to lack of durability, and the cover material is a tent material, which tears easily and has a short life have.

Korean Patent No. 10-1068339 (entitled " automatic opening / closing device for a lid of a waste container ") discloses another example of a method in which the lid is folded in two directions and spreads in two directions around a central portion.

The lid automatic opening and closing apparatus has a structure in which a pair of lids hinged to both sides of the upper portion of the loading box body are opened and closed in both directions using a sprocket, a chain, and a cylinder.

The cover automatic opening and closing apparatus has a complicated structure because it uses a sprocket, a chain and a cylinder to open and close the pair of covers in both directions. In addition, the loading operation can not be performed in the lateral direction of the vehicle without fully opening the lid. Therefore, in order to make the cover located at one side of the vehicle to be loaded in a pair of covers to be completely opened, it is necessary to always secure a space of half the width of the loading width of the vehicle separately from the space for the loading operation, It is necessary to perform the above-mentioned process.

As a method of opening and closing by sliding the cover in a sliding manner, the Korean Utility Model Publication No. 20-1994-0007269 (entitled "Waste Carrying Cover Opening and Closing Device") has been disclosed.

The waste container lid opening / closing device is structured such that a roller is installed on the lid of the loading lid to be opened and closed step by step.

The waste container lid opening / closing device has a complicated structure because it has a rail and a roller for manually opening and closing the lid. Further, since the lid is formed in multiple stages, there is a problem that the operation is not smooth.

SUMMARY OF THE INVENTION The present invention has been conceived in order to solve the above problems, and it is an object of the present invention to provide a cargo cargo lid of a freight vehicle, which is made of a fiber sheet having excellent durability, And a curtain type closed type lid cover using a high strength fiber sheet to be sealed.

Another object of the present invention is to provide a curtain type closed-type lid using a high-strength fiber sheet which prevents the occurrence of deflection by maintaining the tension of a curtain-type cover made of a fiber sheet.

In order to accomplish the above object, the curtain type closed type lid of a high strength fiber sheet according to the present invention includes a first guide groove (11) coupled to an upper edge of a loading box (200) A pair of longitudinal frames (10) provided with a housing and a housing space formed therein; A second guide groove 21 formed at an inner side of the longitudinal frame 10 at right angles to the width direction and coupled to an upper edge of the loading box 200 located in the width direction and having a receiving space formed therein, A pair of widthwise frames (20) in the width direction; A first take-up shaft (30) provided inside the one longitudinal frame (10) and provided to be rotatable along the longitudinal direction; A fiber sheet (40) fixed at one end to the first take-up shaft (30) and wound or unwound on the first take-up shaft (30); And a second end portion fixed to the other end of the fiber sheet 40 and having opposite ends inserted into the second guide groove 21 of the width direction frame 20 and being transported in the width direction along the width direction frame 20, A roll pipe 50 for transporting the fiber sheet 40 to open and close the top of the loading box 200; A second take-up shaft (60) provided inside the other longitudinal frame (10) along the longitudinal direction and rotatably installed; And the other end is fixed to both ends of the roll pipe 50. The other end of the second winding shaft 60 is fixed to both ends of the second winding shaft 60, 60; a pair of wires 70 wound and wound on the wire; A first drive motor 80 for rotating the first take-up shaft 30; A second drive motor 90 for rotating the second take-up shaft 60; And a control unit.

The controller may further include a controller for controlling operations of the first driving motor and the second driving motor.

The first driving motor 80 and the second driving motor 90 may be DC motors.

When the wire 70 is retracted by the rotation of the second driving motor 90, the control unit applies a current to the first driving motor 80, So that the tension of the fiber sheet (40) is adjusted by the magnetizing force by causing the first driving motor (80) to magnetize, and when the fiber sheet (40) is wound by the rotation of the first driving motor A current is applied to the motor 90 so that the second driving motor 90 is magnetized by the applied current so that a resistance torque of a certain magnitude is generated by the magnetizing force to adjust the tension of the fiber sheet 40 .

The longitudinal frame 10 has an intermediate portion of the widthwise end portion thereof protruding upward and has both side surfaces inclined with respect to the protruded portion. The widthwise frame 20 has an intermediate portion in the longitudinal direction thereof, And both sides of the protruded and protruded portion are inclined.

In addition, the driving power of the first driving motor 80 and the second driving motor 90 is supplied from the battery of the dump truck in which the loading car is loaded.

In addition, a remote controller for controlling the control unit wirelessly is further provided.

The curtain type closed type lid according to another embodiment of the present invention comprises a first guide groove 11 which is coupled to an upper edge of a loading box 200 located in a longitudinal direction and has a first guide groove 11 in a longitudinal direction, A pair of longitudinal frames (10) in a housing formed with a receiving space; A second guide groove 21 formed at an inner side of the longitudinal frame 10 at right angles to the width direction and coupled to an upper edge of the loading box 200 located in the width direction and having a receiving space formed therein, A pair of widthwise frames (20) in the width direction; A first take-up shaft (30) provided inside the one longitudinal frame (10) and provided to be rotatable along the longitudinal direction; A fiber sheet (40) fixed at one end to the first take-up shaft (30) and wound or unwound on the first take-up shaft (30); And a second end portion fixed to the other end of the fiber sheet 40 and having opposite ends inserted into the second guide groove 21 of the width direction frame 20 and being transported in the width direction along the width direction frame 20, A roll pipe 50 for transporting the fiber sheet 40 to open and close the top of the loading box 200; A second take-up shaft (60) provided inside the other longitudinal frame (10) along the longitudinal direction and rotatably installed; And the other end is fixed to both ends of the roll pipe 50. The other end of the second winding shaft 60 is fixed to both ends of the second winding shaft 60, 60; a pair of wires 70 wound and wound on the wire; A first handle (100) connected to the first take-up shaft (30) and rotating the first take-up shaft (30) by rotation; A second handle (110) connected to the second take-up shaft (60) and rotating the second take-up shaft (60) by rotation; And a control unit.

A first ratchet gear is provided at an end of the first take-up shaft 30 at a portion connected to the first handle 100 and a second ratchet gear is connected to the second take- The second handle (110) is provided with a second ratchet gear at an end of the second handle (60). The first handle (100) is provided with a first ball resiliently biased by a first spring and in contact with the first ratchet gear. The rotation of the first handle 100 is restrained. When the rotational force of the second handle 110 is greater than the elastic force of the first spring 100, A first ratchet portion (120) for rotating the first ratchet portion (120); When the rotational force of the first handle 100 is smaller than the elastic force of the second spring, the second ball is provided in the second handle 110 and is in contact with the second ratchet gear, A second ratchet part (130) for restricting rotation of the second handle (110) and rotating the second take-up shaft (60) when the rotational force of the first handle (100) is greater than the elastic force of the second spring; And further comprising:

In addition, the longitudinal frame 10 has an intermediate portion of the widthwise end portion thereof protruding upward and has both side surfaces inclined with respect to the protruded portion. The widthwise frame 20 has an intermediate portion in the longitudinal direction thereof, And both sides of the protruded and protruded portion are inclined.

The curtain type closed type lid of the curtain type using the high strength fiber sheet according to the present invention has a simple structure and is wound or unwound by using a fiber sheet having high strength to open and close the upper part of the ladder, It prevents the secondary cargo and the road pollution, and can prevent the dust and odor from occurring, thus solving the current problems that cause various environmental problems, and having a beautiful appearance, so that the dirt truck and the disgusting feeling Provides the effect of eliminating.

Further, since the fiber sheet is opened and closed while maintaining the tensile force, deflection does not occur and the loading box can be stably opened and closed.

1 is a view showing a state where a loading box equipped with a curtain type closed type lid cover using a high strength fiber sheet of the present invention is mounted on a dump truck.
2 is a plan view of a curtain type closed type lid cover using a high strength fiber sheet according to the present invention.
3 is a sectional view taken along the line AA 'of FIG.
4 is a cross-sectional view taken along line BB 'of FIG.
5 and 6 are cross-sectional views taken along line CC 'of FIG.
7 is a plan view of a curtain type closed type lid cover using another type of high strength fiber sheet according to the present invention.
FIG. 8 is a side view of a curtain type closed-type lid according to another embodiment of the present invention. FIG.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a curtain type closed type lid cover using a high strength fiber sheet according to the present invention will be described in detail with reference to the drawings.

1 is a view showing a state where a loading box equipped with a curtain type closed type lid cover using a high strength fiber sheet of the present invention is mounted on a dump truck.

The curtain type closed type lid 200 using the high strength fiber sheet according to the present invention is installed at the top of the ladder, and the ladder can be used by being loaded on the dump truck as shown in Fig.

The curtain type closed type lid 200 using the high strength fiber sheet according to the present invention may be provided in two forms, automatic and manual.

2 is a plan view of a curtain type closed type lid cover using a high strength fiber sheet according to the present invention.

As shown, the curtain-type closed-type lid of the present invention using the high-strength fiber sheet according to the present invention includes a pair of longitudinal frames 10, a pair of lateral frames 20, a first winding shaft 30, A sheet 40, a roll pipe 50, a second winding shaft 60, a pair of wires 70, a first driving motor 80, a second driving motor 90; .

The longitudinal frame 10 is coupled to an upper edge of the loading box 200 located in the longitudinal direction and has a pair of first guide grooves 11 along the longitudinal direction thereof and a housing having a receiving space therein.

A first take-up shaft 30 is rotatably provided in one longitudinal frame 10 and a second take-up shaft 60 is rotatably provided in the other longitudinal frame 10.

The width direction frame 20 is installed at right angles to the longitudinal direction frame 10 and is coupled to the upper edge of the loading box 200 located in the width direction and the second guide groove 21 is formed long inside the width direction do. The width direction frame 20 is formed as a pair with a housing in which a receiving space is formed.

Both ends of the roll pipe 50 are inserted into the second guide groove 21 so that the roll pipe 50 is wound around the second guide groove 21 by winding or loosening the fiber sheet 40, As shown in FIG.

The first take-up shaft 30 is provided inside the one longitudinal frame 10 so as to be long along the longitudinal direction and rotatably installed. The fiber sheet 40 is wound by the unidirectional rotation of the first take-up shaft 30 and the fiber sheet 40 is unwound by rotating in the other direction.

One end of the fiber sheet 40 is fixed to the first take-up shaft 30 and wound or unwound on the first take-up shaft 30. The fiber sheet 40 may be made of a polymer fiber such as carbon fiber, glass fiber or aramid fiber, and it is preferably made of a waterproof material by laminating a synthetic resin material such as polyurethane or the like.

3, the roll pipe 50 is fixed to the other end of the fiber sheet 40. Both end portions of the roll pipe 50 are inserted into the second guide groove 21 of the width direction frame 20, The upper end of the loading box 200 is opened and closed by conveying the fixed fiber sheet 40 in the width direction along the frame 20. A pair of the wires 70 are fixed to both ends of the roll pipe 50 so that the wire 70 is wound or the fiber sheet 40 is wound around the width direction of the width direction frame 20 .

The second take-up shaft 60 is rotatably installed inside the other longitudinal frame 10 along the longitudinal direction. The wire (70) is wound or unwound by the rotation of the second take-up shaft (60).

One end of the wire 70 is fixed to an end of the second take-up shaft 60 and the other end is fixed to both ends of the roll pipe 50 to rotate the second take- And is unwound and wound on the second take-up shaft 60.

5 and 6 are cross-sectional views taken along line C-C 'of FIG. 5 shows a state in which the wire 70 is wound around the second take-up shaft 60 in a state where the loading sheet is closed in a state where the fiber sheet 40 is unwound from the first take-up shaft 30. 6 shows a state in which the wire 70 is unwound from the second take-up shaft 60 in a state in which the stacking tray is opened in a state that the fiber sheet 40 is wound around the first take-up shaft 30.

At this time, as shown in Figs. 5 and 6, a guide roller 31 for guiding the fiber sheet 40 to be wound around the first take-up shaft 30 may be provided.

The first drive motor 80 serves to rotate the first take-up shaft 30.

The second drive motor 90 serves to rotate the second take-up shaft 60.

The first drive motor 80 and the second drive motor 90 respectively rotate the first take-up shaft 30 and the second take-up shaft 60. The reduction gear box 81 , 91) so as to perform decelerated rotation.

In addition, the first drive motor 80 and the second drive motor 90 may be DC motors, respectively.

Further, it is preferable that a control unit (not shown) for controlling the operation of the first drive motor 80 and the second drive motor 90 is further provided.

When the first winding shaft 30 or the second winding shaft 60 is rotated by the rotation of the first driving motor 80 or the second driving motor 90, So that the fiber sheet 40 is prevented from being sagged.

For this, the control unit applies a current to the first driving motor (80) when the wire (70) is wound by the rotation of the second driving motor (90) The tension of the fiber sheet 40 is controlled by the magnetizing force by allowing the motor 80 to be magnetized so that when the fiber sheet 40 is wound by the rotation of the first driving motor 80, A current is applied to the driving motor 90 so that the second driving motor 90 is magnetized by the applied current so that a resistance torque of a certain magnitude is generated by the magnetizing force, .

When the current is applied to the first and second driving motors 80 and 90 due to the characteristic of the DC motor, an electromotive force is generated and magnetized in the inside, and a resistance torque of a certain magnitude is generated by the magnetizing force. Thereby controlling the tensile force of the fiber sheet 40.

3 and 4, the middle frame of the longitudinal frame 10 protrudes upward and has both side surfaces inclined with respect to the protruded portion, and the width direction frame 20 5 and FIG. 6, it is preferable that the middle portion of the longitudinal section protrudes upward and both side surfaces form an inclined surface about the protruded portion.

When the middle portions of the longitudinal frame 10 and the lateral frame 20 protrude upward and both sides of the protruded portion are inclined, when the load such as soil, waste or the like is loaded on the loading box, A load such as soil and waste accumulated on the longitudinal frame 10 and the upper portion of the width direction frame 20 is allowed to flow so that when the fiber sheet 40 is closed, So that it is possible to prevent the load such as waste from flowing down, thereby facilitating the winding or unfolding operation of the fiber sheet 40.

In addition, it is preferable that the driving power of the first driving motor 80 and the second driving motor 90 be supplied from the battery of the dump truck in which the loading box is mounted.

If the driving power of the first driving motor 80 and the driving power of the second driving motor 90 are supplied from the battery of the dump truck, a separate power source for operating them is not required.

It is also preferable that a remote controller for controlling the control unit by radio is further provided.

FIG. 7 is a plan view of a curtain type closed-type lid according to another embodiment of the present invention, and FIG. 8 is a side view of a curtain type closed-type lid using another type of high-strength fiber sheet according to the present invention.

The curtain type closed type lid cover using the high strength fiber sheet according to the present invention, which is manually operated, comprises a pair of longitudinal frames 10, a pair of widthwise frames 20, a first take-up shaft 30, a fiber sheet 40, A first handle 100, a second handle 110, a first ratchet portion 120, a second ratchet portion 130, and a second ratchet portion 130. The roll pipe 50, the second winding shaft 60, the pair of wires 70, .

A pair of longitudinal frames 10, a pair of widthwise frames 20, a first winding shaft 30, a fiber sheet 40, a roll pipe 50, a second winding shaft 60, a pair of wires 70 is the same as the curtain type closed type lid cover using the above-mentioned automatic type high strength fiber sheet according to the present invention.

The first handle 100 is connected to the first take-up shaft 30 and serves to rotate the first take-up shaft 30 by rotation.

The second handle 110 is connected to the second take-up shaft 60 to rotate the second take-up shaft 60 by rotation.

The first handle 100 and the second handle 110 respectively rotate the first take-up shaft 30 and the second take-up shaft 60 so that the first and second handles 100 and 60 are connected to each other through a reduction gear box It is possible to reduce rotation of the handle for rotation of the take-up shaft and smooth rotation of the handle.

A predetermined tension is applied to the fiber sheet 40 at the time of rotation of the first take-up shaft 30 or the second take-up shaft 60 by the rotation of the first handle 100 or the second handle 110 So as to prevent the fiber sheet 40 from being sagged.

A first ratchet gear is provided at an end of the first take-up shaft 30 at a portion connected to the first handle 100 and a second ratchet gear is provided at a portion connected to the second handle 110, A second ratchet gear is provided at an end of the first handle 100 and a first ratchet 120 and a second ratchet 130 are provided to the first handle 100 and the second handle 110, respectively.

The first ratchet part 120 and the second ratchet part 130 are provided on the first and second handles 100 and 110 respectively and are provided with balls biased by a spring, The ball is engaged with the ratchet gear to restrain the rotation, and the rotation is made to rotate when the spring force is greater than the elastic force of the spring.

The first ratchet part 120 is provided on the first handle 100 and is provided with a first ball (not shown) that is resiliently biased by a first spring (not shown) and in contact with the first ratchet gear, When the rotational force of the second handle 110 is smaller than the elastic force of the first spring 100, the rotation of the first handle 100 is restricted. When the rotational force of the second handle 110 is greater than the elastic force of the first spring, So that the first take-up shaft 30 is rotated.

The second ratchet 130 is provided on the second handle 110 and is provided with a second ball (not shown) that is biased by a second spring (not shown) and contacts the second ratchet gear, When the rotational force of the first handle 100 is smaller than the elastic force of the second spring 100, the rotation of the second handle 110 is restricted. When the rotational force of the first handle 100 is greater than the elastic force of the second spring 100, So that the second take-up shaft 60 is rotated.

When the first handle 100 is rotated to wind up the fiber sheet 40, the second handle 110 is rotated by the second ratchet part 130 by the elastic force of the spring, When the fiber sheet 40 is unwound by winding the wire 70 by rotating the second handle 110, the first handle 100 is moved to the first ratchet part 120 The elasticity of the spring releases the fiber sheet 40 while maintaining a constant tension.

As described above, the configuration of the ratchet gear, the first ratchet portion 120, and the second ratchet portion 130 allows the fiber sheet 40 to be wound or unwound while maintaining a constant tension, so that when the fiber sheet 40 is wound or unwound It is possible to prevent the occurrence.

As in the case of the curtain type closed-type cargo lid cover using the above-described automatic high-strength fiber sheet, the longitudinal frame 10 has an intermediate portion in the width direction protruding upward, and both sides are inclined at the center of the protruded portion , The width direction frame 20 preferably has an intermediate portion of its longitudinal section projecting upward and both sides of the width direction forming an inclined surface about a protruded portion.

When the middle portions of the longitudinal frame 10 and the lateral frame 20 protrude upward and both sides of the protruded portion are inclined, when the load such as soil, waste or the like is loaded on the loading box, A load such as soil and waste accumulated on the longitudinal frame 10 and the upper portion of the width direction frame 20 is allowed to flow so that when the fiber sheet 40 is closed, So that it is possible to prevent the load such as waste from flowing down, thereby facilitating the winding or unfolding operation of the fiber sheet 40.

The technical idea should not be interpreted as being limited to the above-described embodiment of the present invention. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. Accordingly, such modifications and changes are within the scope of protection of the present invention as long as it is obvious to those skilled in the art.

10: longitudinal frame 11: first guide groove
20: width direction frame 21: second guide groove
30: first winding shaft 40: fiber sheet
50: roll pipe 60: second winding shaft
70: wire 80: first drive motor
90: second drive motor 100: first handle
110: second handle 120: first ratchet part
130: second ratchet part 200:

Claims (10)

A pair of longitudinal frames (10) coupled to an upper edge of the loading box (200) located in the longitudinal direction and having a first guide groove (11) in the longitudinal direction inside and a housing space formed therein;
A second guide groove 21 formed at an inner side of the longitudinal frame 10 at right angles to the width direction and coupled to an upper edge of the loading box 200 located in the width direction and having a receiving space formed therein, A pair of widthwise frames (20) in the width direction;
A first take-up shaft (30) provided inside the one longitudinal frame (10) and provided to be rotatable along the longitudinal direction;
A fiber sheet (40) fixed at one end to the first take-up shaft (30) and wound or unwound on the first take-up shaft (30);
And a second end portion fixed to the other end of the fiber sheet 40 and having opposite ends inserted into the second guide groove 21 of the width direction frame 20 and being transported in the width direction along the width direction frame 20, A roll pipe 50 for transporting the fiber sheet 40 to open and close the top of the loading box 200;
A second take-up shaft (60) provided inside the other longitudinal frame (10) along the longitudinal direction and rotatably installed;
And the other end is fixed to both ends of the roll pipe 50. The other end of the second winding shaft 60 is fixed to both ends of the second winding shaft 60, 60; a pair of wires 70 wound and wound on the wire;
A first drive motor 80 for rotating the first take-up shaft 30;
A second drive motor 90 for rotating the second take-up shaft 60;
Wherein the high-strength fiber sheet is made of a synthetic resin. The method according to claim 1,
Further comprising a controller for controlling operations of the first driving motor (80) and the second driving motor (90). 3. The method of claim 2,
Wherein the first drive motor (80) and the second drive motor (90) are DC motors, respectively. The apparatus of claim 3,
A current is applied to the first driving motor 80 when the wire 70 is wound by the rotation of the second driving motor 90 so that the first driving motor 80 is magnetized by the applied current Thereby controlling the tension of the fiber sheet 40 by the magnetizing force,
A current is applied to the second driving motor 90 when the fiber sheet 40 is wound by the rotation of the first driving motor 80 so that the second driving motor 90 is magnetized So that a resistance torque of a predetermined magnitude is generated by the magnetizing force to adjust the tensile force of the fiber sheet (40). 5. The method of claim 4,
The longitudinal frame 10 has an intermediate portion of the width direction projecting upward, both sides of the longitudinal frame 10 forming an inclined surface with a protruded portion as a center,
Wherein the width direction frame (20) has an intermediate portion of a longitudinal section thereof protruding upward, and both sides of the width direction frame are inclined with respect to a protruded portion. 6. The method of claim 5,
Wherein the drive power of the first drive motor (80) and the second drive motor (90) is supplied from a battery of a dump truck in which a load tray is loaded, the curtain type closed lid cover using the high strength fiber sheet. The method according to claim 6,
And a remote controller for controlling the control unit wirelessly. ≪ RTI ID = 0.0 > 21. < / RTI > A pair of longitudinal frames (10) coupled to an upper edge of the loading box (200) located in the longitudinal direction and having a first guide groove (11) in the longitudinal direction inside and a housing space formed therein;
A second guide groove 21 formed at an inner side of the longitudinal frame 10 at right angles to the width direction and coupled to an upper edge of the loading box 200 located in the width direction and having a receiving space formed therein, A pair of widthwise frames (20) in the width direction;
A first take-up shaft (30) provided inside the one longitudinal frame (10) and provided to be rotatable along the longitudinal direction;
A fiber sheet (40) fixed at one end to the first take-up shaft (30) and wound or unwound on the first take-up shaft (30);
And a second end portion fixed to the other end of the fiber sheet 40 and having opposite ends inserted into the second guide groove 21 of the width direction frame 20 and being transported in the width direction along the width direction frame 20, A roll pipe 50 for transporting the fiber sheet 40 to open and close the top of the loading box 200;
A second take-up shaft (60) provided inside the other longitudinal frame (10) along the longitudinal direction and rotatably installed;
And the other end is fixed to both ends of the roll pipe 50. The other end of the second winding shaft 60 is fixed to both ends of the second winding shaft 60, 60; a pair of wires 70 wound and wound on the wire;
A first handle (100) connected to the first take-up shaft (30) and rotating the first take-up shaft (30) by rotation;
A second handle (110) connected to the second take-up shaft (60) and rotating the second take-up shaft (60) by rotation;
And a high-strength fiber sheet. 9. The method of claim 8,
A first ratchet gear is provided at an end of the first take-up shaft 30 at a portion connected to the first handle 100 and the second take-up shaft 60 at a portion connected to the second handle 110, A second ratchet gear is provided at an end portion thereof,
When the rotational force of the second handle 110 is smaller than the elastic force of the first spring, the first ball is provided in the first handle 100 and is in contact with the first ratchet gear, A first ratchet part (120) for restricting rotation of the first handle (100) and rotating the first take - up shaft (30) when the rotational force of the second handle (110) is greater than the elastic force of the first spring (100);
When the rotational force of the first handle 100 is smaller than the elastic force of the second spring, the second ball is provided in the second handle 110 and is in contact with the second ratchet gear, A second ratchet part (130) for restricting rotation of the second handle (110) and rotating the second take-up shaft (60) when the rotational force of the first handle (100) is greater than the elastic force of the second spring;
Wherein the high-strength fiber sheet is made of a synthetic resin. 10. The method of claim 9,
The longitudinal frame 10 has an intermediate portion of the width direction projecting upward, both sides of the longitudinal frame 10 forming an inclined surface with a protruded portion as a center,
Wherein the width direction frame (20) has an intermediate portion of a longitudinal section thereof protruding upward, and both sides of the width direction frame are inclined with respect to a protruded portion.
KR1020150072719A 2015-05-26 2015-05-26 Curtain Type Sealed Cargo Box Cover using Fiber Sheet KR101703893B1 (en)

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KR1020150072719A KR101703893B1 (en) 2015-05-26 2015-05-26 Curtain Type Sealed Cargo Box Cover using Fiber Sheet

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Cited By (1)

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Publication number Priority date Publication date Assignee Title
KR20230171771A (en) * 2022-06-14 2023-12-21 송용만 Automatic cover for dump trucks

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KR101928857B1 (en) * 2018-06-12 2018-12-13 김재만 Loading box cover unit for dump trucks

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Publication number Priority date Publication date Assignee Title
KR100419731B1 (en) * 2001-07-16 2004-02-21 기아자동차주식회사 Side Trim Structure of Luggage Cover in Vehicles
JP4310263B2 (en) * 2004-11-22 2009-08-05 山崎物流有限会社 Cargo seat device

Patent Citations (2)

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Publication number Priority date Publication date Assignee Title
KR100419731B1 (en) * 2001-07-16 2004-02-21 기아자동차주식회사 Side Trim Structure of Luggage Cover in Vehicles
JP4310263B2 (en) * 2004-11-22 2009-08-05 山崎物流有限会社 Cargo seat device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20230171771A (en) * 2022-06-14 2023-12-21 송용만 Automatic cover for dump trucks

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