KR102100687B1 - LOAD LUGGER TRUCK with TURN-OVER PREVENTION SYSTEM - Google Patents

Abstract

According to the present invention, a load lugger apparatus having a rollover prevention system includes: a vehicle body (100) of a transportation means; a lugger frame (105) mounted on the vehicle body (100); a boom (115) having a rear end coupled to one side of the lugger frame (105) through a boom hinge (230), and having a first chain engaging portion (110) formed on a front end portion thereof; a boom cylinder (120) having one end hinged to one side of the boom (115) and the other end hinged to the lugger frame (105); a bucket (135) having second chain engaging portions (125), respectively formed on both front and rear portions of both the side surfaces thereof, having a dumping hinge (130) protruding on a rear end of a lower portion of the side surface thereof, and disposed on the lugger frame (105); a chain member (140) having both ends fixed to the second chain engaging portions (125) and having a longitudinal center portion held and fixed to the first chain engaging portion (110); outrigger units (150) coupled to both sides of a rear portion of the vehicle body (100) and formed to lower, to the ground, support members (145) provided on lower ends thereof or raise the same; a hook (160, figure 2) hinged to a rear end of the vehicle body (100) and having a hook groove (155) formed on a front end thereof and engaged with the dumping hinge (130); a plurality of load cells (LC1, LC2, LC3 and LC4) for sensing a load distribution by supporting the lugger frame (105) in the vehicle body (100); and a controller (170) for controlling the operations of the outrigger units (150) and the boom cylinder (120) in response to load signals sensed by the load cells (LC1, LC2, LC3 and LC4).

Description

LOAD LUGGER TRUCK with TURN-OVER PREVENTION SYSTEM}

The present invention is an invention of a load rugger device to which an overturn protection system is applied to prevent overturning of a vehicle during loading, unloading, and / or dumping of a bucket.

Patent Document 001 relates to an apparatus for preventing the tipping of a dump truck, and prevents the tipping of the vehicle by automatically moving the center of gravity of the loading box as well as warning the driver after determining the danger of tipping the vehicle during dumping at a side slope. The main purpose is to provide a tipping device for tipping trucks that allows dumping operations on any slope. In order to achieve the above object, the present invention, the overturning of the dump truck having a cylinder mechanism that is rotatably coupled to the vehicle body frame via a hinge coupling portion and rotates the loading box upward and downward about the hinge coupling portion. A preventive device comprising: load detection means for detecting a load applied to a left portion and a right portion of a vehicle body frame through a hinge coupling portion from a loading box during a dumping operation by a cylinder mechanism; A controller that outputs a control signal for preventing vehicle overturning when it is determined that there is a risk of vehicle overturning from the detection signal of the load detection means; A driving means for moving the center of gravity of the entire dump truck by moving to the left or right with respect to the loading portion of the cylinder mechanism which is the coupling portion with the loading side according to the control signal output by the controller; It provides a device for preventing the tipping of a dump truck including a.

Patent Document 002 relates to a door opening and closing device for a dump truck for transporting gravel, sand, and rocks, and is configured such that the door formed at the rear of the stack is completely lifted over the stack, so that waste carried in the stack, iron scrap, gravel, and sand And a door opening and closing device for a dump truck loading box configured to discharge rocks and the like quickly and smoothly. One side of the door arm is hinged to both rear ends of the loading box, and the other side of the door arm comprises a bracket hinged to the door, and the arm cylinder fixed to the loading box is hinged to the door arm, so that the door arm is operated by the operation of the arm cylinder. It is configured so that the door is lifted to the top of the loading box by rotating about the hinge.

Patent document 003 relates to a device for preventing the rollover of a concrete pump truck, and the first rear leg part and the second rear leg part are respectively installed on both rear sides of the base frame constituting the vehicle body, and the length direction of the first and second rear leg parts In addition, while the first water tank and the second water tank are installed, a boom position detecting means is installed on the boom driving gear cover mounted on the boom turning device, and the boom position detecting means is used to control the working position of the boom detected through the boom position detecting means. Water pump control means for switching the flow path so that water in the water tank 1 and 2 is moved is installed, and water pump control means for operating / stopping the water quantity control means according to the signal applied from the boom position detection means, and these water quantity control means A switch means for electrically turning on / off the water pump control means is installed, and according to the position of the boom, the water is moved to the leg part located corresponding to the position of the boom, thereby weighting the corresponding leg part It is possible to secure the stability of the boom by acting as.

Patent document 004 relates to an apparatus for detecting the load weight of a freight vehicle, which is in contact with an upper portion of a plate spring of a freight vehicle, and has a plate-like body portion having a curvature equal to the curvature of the plate spring, and is located in the upper center of the plate-shaped body portion, It is composed of a sensor unit for detecting curvature, a first fixed body portion and a second fixed body portion fixedly installed on both ends of the plate-shaped body portion based on the sensor portion and wound around a band and fixed to the plate spring.

Republic of Korea Patent 10-2014-0013634 Republic of Korea Public Practical 20-2004-0031750 Republic of Korea Public Practical 20-1998-0026400 Republic of Korea Patent 10-2017-0053963

SUMMARY OF THE INVENTION An object of the present invention is to provide a rollover prevention system that prevents a rollover of a vehicle in a situation where a rollover of a vehicle is expected according to a change in the center of gravity of the vehicle body when loading, unloading, or dumping a bucket in a road loader truck It is to provide an applied load rugger device.

A road logger device to which the rollover prevention system according to the present invention is applied includes a vehicle body 100 of a vehicle; A rugger frame 105 mounted on the vehicle body 100; The rear end is coupled to one side of the rugger frame 105 through the boom hinge 230, the boom 115 is formed on the front end of the first chain engaging portion 110; A boom cylinder 120 having one end hinged to one side of the boom 115 and the other end hinged to the rugger frame 105; The second chain engaging portion 125 is formed on both sides of the front and rear sides of the two sides, the dumping hinge 130 is formed protruding at the rear end of the side, the bucket 135 disposed on the rugger frame 105; The ring formed at both ends is fixed to the second chain engaging portion 125, and the ring formed at the central portion in the longitudinal direction is a chain member 140 fixed to the first chain engaging portion 110; An outrigger unit 150 coupled to both rear sides of the vehicle body 100 and configured to lower or raise the support member 145 provided at the bottom thereof to the ground side; A hook 160 that is hinged to the rear end of the vehicle body 100 and a hook groove 155 that is engaged with the dumping hinge 130 at the front end; A plurality of load cells (LC1, 2, 3, 4) for sensing the load distribution by supporting the rugger frame (105) in the vehicle body (100); And it may include a controller 170 for controlling the operation of the outrigger unit 150 and the boom cylinder 120 according to the load signal sensed by the load cells (LC1, 2, 3, 4).

The road logger device to which the roll-over prevention system according to the present invention is applied, the outrigger unit 150 includes: a support cylinder 180 that lowers or raises a support shaft 175 provided with the support member 145 at a lower end; And one side may include a support arm 185 is coupled to the vehicle body 100, the support cylinder 180 is coupled to the other side.

A road logger device to which the rollover prevention system according to the present invention is applied includes a length adjustment cylinder 190 hinged to the vehicle body to adjust the length of the support arm 185; And it may further include a rotating cylinder 195 mounted to the vehicle body to control the rotational position of the length adjustment cylinder 190.

The road logger device to which the rollover prevention system according to the present invention is applied includes a hook rotation cylinder 205 that rotates the hook 160 hinged to the vehicle body 100; It may further include.

In the load logger device to which the rollover prevention system according to the present invention is applied, the controller 170 sets a range in which load signals sensed by the first, second, third, and fourth load cells LC1, 2, 3, 4 are preset. If it exceeds, the operation of the boom cylinder 120 may be stopped.

In the load logger device to which the roll-over prevention system according to the present invention is applied, the outrigger unit 150 may further include a trigger load cell 200 configured on the support member to sense the support force.

In the present invention, it is possible to detect the load fluctuation characteristics of the vehicle body during unloading, loading, or dumping of the bucket, thereby preventing the vehicle body from overturning by operating the outrigger unit.

In the present invention, the support shaft of the outrigger unit can stably support the vehicle body by stably maintaining the support force against the ground.

In the present invention, when the load signal detected by the load cell exceeds a preset range, the rotation operation of the boom may be stopped and the outrigger may be operated.

In the present invention, in order to dump the bucket, it is possible to easily control the rotational position of the hook so that the dumping hinge of the bucket is caught in the hook groove.

In the present invention, the controller may adjust the position or length of the outrigger unit according to the load signal sensed by the load cell, thereby more effectively preventing the overturning of the vehicle body.

The effects according to the embodiments of the present invention mentioned above are not limited only to the contents described, and further include all predictable effects from the specification and drawings.

1 is a side view showing a state in which the bucket is loaded on the vehicle in the present invention.
2 is a side view showing a state in which the bucket is unloaded from the vehicle in the present invention.
3 is a side view showing a state in which the bucket is unloaded on the road surface in the vehicle in the present invention.
4 and 5 is a side view showing a state in which the bucket is dumped in the vehicle in the present invention.
6 is a schematic configuration diagram of a road rugger device to which an overturn protection system according to the present invention is applied.
7 and 8 are partial side views of the outrigger unit in the road rugger truck according to the present invention.
9 is a schematic plan view of an outrigger unit in a road rugger truck according to the present invention.
10 and 11 are graphs showing changes in unloading and dumping loads of buckets in a road logger truck according to the present invention.
12 is a side view showing the rotation operation of the hook in the rugger truck according to the present invention.

Hereinafter, the most preferred embodiment of the present invention will be described in detail in order to describe in detail that a person skilled in the art to which the present invention pertains can easily implement the present invention.

The citation numbers cited in the following examples do not refer only to the designated numbers, and may be cited for the entire embodiments. The subject presented in the Examples is not limited to only the name, and exhibits the same purpose and effect, and is considered to be capable of substituting subjects with similar solution principles.

[Example 1-1] The present invention relates to a road rugger device to which an overturn prevention system is applied, the present invention (see FIGS. 2 and 6), the vehicle body 100 of a transportation means; A rugger frame 105 mounted on the vehicle body 100; The rear end is coupled to one side of the rugger frame 105 through the boom hinge 230, the boom 115 is formed on the front end of the first chain engaging portion 110; A boom cylinder 120 having one end hinged to one side of the boom 115 and the other end hinged to the rugger frame 105; The second chain engaging portion 125 is formed on both sides of the front and rear sides of the two sides, the dumping hinge 130 is formed protruding at the rear end of the side, the bucket 135 disposed on the rugger frame 105; The ring formed at both ends is fixed to the second chain engaging portion 125, and the ring formed at the central portion in the longitudinal direction is a chain member 140 fixed to the first chain engaging portion 110; An outrigger unit 150 coupled to both rear sides of the vehicle body 100 and configured to lower or raise the support member 145 provided at the bottom thereof to the ground side; A hook 160 that is hinged to the rear end of the vehicle body 100 and a hook groove 155 that is engaged with the dumping hinge 130 at the front end; A plurality of load cells (LC1, 2, 3, 4) for sensing the load distribution by supporting the rugger frame (105) in the vehicle body (100); And a controller 170 for controlling the operation of the outrigger unit 150 and the boom cylinder 120 according to load signals sensed by the load cells LC1, 2, 3, and 4; It may include.

In the present invention (see Figs. 2 and 6), a rugger frame is constructed on a body stacker of a loader truck. First, second, third, and fourth load cells are configured in the vehicle body, and they sense the load of the rugger frame and the bucket in real time. The first and second load cells are configured on both front sides of the rugger frame, and the third and fourth load cells are configured on both rear sides of the rugger frame.

In more detail with respect to the overall structure of the road rugger truck (see FIG. 2), one end of the boom is rotatably installed at the rear end of the vehicle body by the boom hinge. The boom is preferably installed on both sides of the vehicle body.

A first chain engaging portion is further formed at the tip of the boom. The rear end of the boom cylinder is hinged to the rugger frame, and the front end is configured to push and pull one side of the boom. Here, when the boom cylinder pushes the boom, the boom rotates forward (clockwise in FIG. 2), and when the boom cylinder pulls the boom, the boom may be rotated counterclockwise (counterclockwise in FIG. 2).

On both sides of the bucket, second chain hooks are formed on both sides of the front and rear sides, and rings are formed on both ends of the chain member, and the hooks are fixed to the second chain hooks, and the hooks are also provided at the center of the chain member in the longitudinal direction. It is formed, and the hook is fixed by hanging the first chain-hanging part configured in the boom. It is preferable that the operation of hooking such a hook to the engaging portion is performed directly by an operator.

In the present invention (see FIGS. 1,2 and 3), when the boom cylinder rotates the boom in the forward direction, the bucket is unloaded to the ground side in the rugger frame, and when the boom cylinder rotates the boom in the reverse direction, The bucket is loaded from the ground to the rugger frame side.

In addition, the bucket may be dumped as shown in FIG. 4. In more detail, a hook is further formed on the rear side of the vehicle body. One end of the hook is hinged to the vehicle body, and a hook groove is further formed at the tip. In addition, a dumping hinge is formed at a lower rear end of the bucket, and the dumping hinge of the bucket is caught in the hook groove at a first rotational position where the hook is raised, and is dumped obliquely to discharge the load to the ground side. have.

In addition, as shown in FIG. 2, the dumping hinge of the bucket is not caught in the hook groove at the second rotational position where the hook is lowered, and the bucket can be loaded or unloaded horizontally without a dumping operation. In the present invention, as illustrated in FIG. 4, the bucket is dumped while the hook groove of the hook is raised, but as illustrated in FIG. 5, the bucket may be dumped while the hook groove of the hook is positioned rearward. have. In the present invention, dumping for convenience means that the bucket is rotated obliquely to discharge a load, and unloading / loading means to horizontally move the bucket using the boom in the horizontal state of the bucket.

[Example 1-2] The present invention relates to a load logger device to which an overturn prevention system is applied, in Example 1-1, the load cells LC1, 2, 3, 4 are installed on both sides of the front. It may include load cells LC1 and 2 and third and fourth load cells LC3 and 4 installed at both rear sides.

The controller controls the operation of the outrigger unit by controlling the hydraulic operation unit 225 according to the load signal applied from the load cell to control the operation of the outrigger unit so that the vehicle body is overturned by the movement of the load during bucket loading, unloading, or dumping operation. To prevent.

In the present invention, the load cell is arranged two front left and right two rear left and right of the rug frame, the number of installation and installation position of the load cell may be changed according to the design specifications.

[Example 1-3] The present invention relates to a road rugger device to which an overturn prevention system is applied, and in Example 1-1, an inclined surface 220 inclined inward is provided at the front lower and rear lower portions of the bucket 135. Can be formed.

In the present invention (see FIG. 1), the bucket is disposed on a rugger frame, and the lower front and lower rear surfaces of the bucket are inclined inward to prevent jamming during unloading and loading. During the dumping process, objects in the bucket can be easily discharged.

[Example 2-1] The present invention relates to a road logger device to which an overturn prevention system is applied. In Example 1-1, the outrigger unit 150 is provided with the support member 145 at the bottom. A support cylinder 180 for lowering or raising the support shaft 175; And one side is coupled to the vehicle body 100, the support arm 185 is coupled to the support cylinder 180 on the other side; It may include.

In the present invention (see Fig. 7), the outrigger unit is a support arm coupled to the vehicle body, a support cylinder mounted on the front end of the support arm, a support shaft that moves up and down by the support cylinder, and mounted on the lower surface of the support shaft It is configured to include a supporting member, and the controller operates the supporting cylinder hydraulically to move the supporting shaft downward and press the supporting member to the ground. In addition, the boom cylinder can be operated to dump / load / unload the bucket using the boom. Here, the user can manually perform the operation of hanging the chain member on the bucket and the boom.

[Example 2-2] The present invention relates to a road logger device to which an overturn prevention system is applied. In Example 1-1, the outrigger unit 150 has both rear and front sides of the rugger frame 105. Can be configured respectively.

Here, the outrigger unit is configured on both sides of the rear of the vehicle body to prevent the overturn of the vehicle body due to the loading / unloading / dumping movement of the bucket.

In addition, referring to Figure 6, the outrigger unit is configured on both sides of the front and the back of the bucket, respectively, to effectively prevent the vehicle from tipping over, and the installation position and number of the outrigger units are variable according to the design specifications. Can be implemented.

[Example 3-1] The present invention relates to a road logger device to which an overturn prevention system is applied, and in Example 2-1, a length adjustment cylinder hinged to the vehicle body to adjust the length of the support arm 185 (190); And a rotation cylinder 195 mounted to the vehicle body to control the rotational position of the length adjustment cylinder 190. It may further include.

In the present invention (see Fig. 9), the outrigger unit is installed on the vehicle body and the position of the support member can be adjusted within a set range. In more detail, the support cylinder is mounted on the front end of the support arm, and the length adjustment cylinder can adjust the length of the support arm by pushing the support arm forward or pulling it back.

 Here, the length adjustment cylinder is configured to be rotatable in the horizontal direction in the vehicle body through a hinge, and the rotation cylinder can adjust the rotational position of the length adjustment cylinder through a gear coupling structure.

[Example 3-2] The present invention relates to a load logger device to which an overturn prevention system is applied. In Example 3-1, the controller 170 includes the first, 2, 3, and 4 load cells LC1, 2, 3, 4) calculates the length of the support arm 185 and the rotational position of the support arm 185 according to the load signal sensed, and correspondingly, the length adjustment cylinder 190 and the rotation cylinder ( 195) can be controlled.

 [Example 3-3] The present invention relates to a road rugger device to which an overturn prevention system is applied. In Example 3-1, the rotary cylinder 195 is provided with the length adjustment cylinder 190 through a gear coupling structure. The rotation position can be controlled.

In an embodiment of the present invention, the controller receives the load signal from the first, second, third, and fourth load cells, and adjusts the rotational position and length of the support arm through the rotary cylinder and the length adjustment cylinder, and the support The support member can be pressed to the ground by operating the cylinder. Therefore, by actively responding to changes in the load distribution, when the bucket is loaded or unloaded, when the bucket is dumped, the overturning of the vehicle body can be prevented.

[Example 4-1] The present invention relates to a road logger device to which an overturn prevention system is applied. In Example 1-1, a hook rotation cylinder rotating the hook 160 hinged to the vehicle body 100 is rotated. 205; It may include.

In the present invention (see Fig. 12), a hook groove is formed at one end of the hook, and the other end is hinged to the vehicle body. And, the hook can be rotated in the 12 o'clock position (first rotation position), or can be rotated in the 3 o'clock direction (second rotation position), the controller can rotate the hook through the hook cylinder. Here, the hook cylinder may be an air cylinder operated by air.

[Example 4-2] The present invention relates to a road rugger device to which an overturn prevention system is applied, and in Example 6-1, the fixing configured in the vehicle body 100 to limit the rotation range of the hook 160 Member 210; And it is mounted on the fixing member 210 to be elastically compressed by the hook 160 may further include an elastic member (215).

In the present invention (see Fig. 12), in order to limit the rotation of the hook, a fixing member is formed / mounted on the vehicle body. In addition, the elastic member is further configured to reduce the impact with the fixing member during the rotation operation of the hook. The elastic member is coupled to the fixing member, and may have a coil spring structure elastically compressed by the hook.

[Embodiment 4-3] The present invention relates to a road rugger device to which an overturn prevention system is applied. In Example 6-1, the controller 170 operates the hook rotation cylinder 205 to operate the hook 160. ) To the first rotational position, and actuating the boom cylinder 120 so that the dumping hinge 130 of the bucket 135 is caught in the hook groove 155 of the hook 160. (135) can be dumped.

[Example 4-4] The present invention relates to a road logger device to which an overturn prevention system is applied. In Example 6-1, the controller 170 operates the hook rotation cylinder 205 to operate the hook 160. ) Is changed to the second rotational position, and the boom cylinder 120 is operated to unload the bucket 135 in a horizontal state.

In the present invention (see FIGS. 1, 2, and 3), when the boom cylinder rotates the boom in the forward direction, the bucket is unloaded to the ground side in the rugger frame, and when the boom cylinder rotates the boom in the reverse direction , The bucket is loaded from the ground to the rugger frame side.

In addition, the bucket may be dumped as shown in FIG. 4. That is, a hook is further formed on the rear side of the vehicle body. One end of the hook is hinged to the vehicle body, and a hook groove is further formed at the tip.

In addition, a dumping hinge is formed at a lower rear end of the bucket, and the dumping hinge of the bucket is caught by the hook groove and dumped at the first rotational position where the hook is raised, so that the load can be discharged to the ground side. In addition, as shown in FIG. 2, the dumping hinge of the bucket is not caught in the hook groove at the second rotational position where the hook is lowered, and the bucket can be loaded or unloaded horizontally without a dumping operation.

In the present invention, when unloading, loading, or dumping of the bucket, the load of the vehicle body is sensed, and thus the outrigger unit is operated to prevent the vehicle body from overturning, and the controller according to the load signal detected by the load cell controls the outrigger. By adjusting the rotation position and length of the unit, it is possible to more effectively prevent the overturning of the vehicle body due to the change in the load position, and the support shaft of the outrigger unit can stably support the vehicle body by stably maintaining the support force against the ground. , When the load signal detected by the load cell exceeds a preset range, the rotation operation of the boom can be stopped and the outrigger can be operated. In order to dump the bucket, it is easy to rotate the hook so that the bucket's dumping hinge catches the hook groove. Can be controlled.

[Example 5-1] The present invention relates to a load logger device to which an overturn prevention system is applied. In Example 1-1, the controller 170 includes the first, 2, 3, and 4 load cells LC1, If the load signal detected in 2, 3, 4) exceeds a preset range, the operation of the boom cylinder 120 may be stopped.

In the present invention (see Fig. 10), the horizontal axis represents the operating length of the boom, and the vertical axis represents the load signal sensed by the first load cell and the third load cell. During the unloading process of the bucket, the load signal of the first load cell gradually decreases, and the load signal of the third load cell gradually increases. In addition, when the appropriate range for the load signal is set in advance, and the load signal is outside the appropriate range, the controller may stop the boom cylinder.

Similarly, in the present invention (see Fig. 11), the horizontal axis represents the operating length of the boom, and the vertical axis represents the load signal sensed by the first load cell and the third load cell. During the dumping process of the bucket, the load signal of the first load cell gradually decreases, and the load signal of the third load cell gradually increases. In addition, the controller may perform the unloading or loading operation of the bucket again by operating the boom cylinder by operating the outrigger and supporting the vehicle body more firmly.

[Embodiment 5-2] The present invention relates to a road logger device to which an overturn prevention system is applied, and in Embodiment 5-1, the controller 170 stops the operation of the boom cylinder 120 and then the The support member 145 may be pressed to the ground by operating the trigger unit 150.

When the proper range for the load signal is set in advance, and the load signal is out of the proper range, the controller can stop the operation of the boom cylinder. In addition, the controller may perform the dumping operation of the bucket again by operating the boom cylinder while operating the outrigger to support the vehicle body more firmly. In addition, the controller may perform the loading / unloading / dumping operation of the bucket again by resetting the length of the support arm and the rotation angle of the support arm as shown in FIG. 8.

[Example 6-1] The present invention relates to a road logger device to which an overturn prevention system is applied. In Example 1-1, the outrigger unit 150 is configured on the support member and triggers to sense the support force. Load cell 200; It may further include.

In the present invention (see FIG. 8), the trigger load cell configured in the support shaft senses the support force that the support shaft is supported on the ground, and transmits it to the controller.

In an embodiment of the present invention, the load cell / trigger load cell is a load transducer sensor, outputs an electrical signal proportional to the load, and can have a resistance wire torsion gauge structure, and this method changes the resistance of the torsion gauge to an elastic body deformed to the load. Is a method of drawing as an electrical signal using a bridge circuit, and the measurement range differs depending on the structure of the elastic body, but may range from a few gf to over 100tf. In addition, the method using the torsion gauge can make the displacement of the elastic body considerably small, so it can be made compact / lightweight, and since the torsion is directly converted into an electrical signal, it is also possible to follow dynamic changes and to perform telemetry.

[Example 6-2] The present invention relates to a load logger device to which an overturn prevention system is applied. In Example 6-1, the controller 170 has a support force sensed by the trigger load cell 200 in a set range. To be included in, it is possible to control the operation of the support cylinder 180.

For example, when the support cylinder lowers the support shaft, the support member is pressed against the ground, and the ground may be recessed by the pressing force. At this time, the supporting force sensed by the triload cell is reduced. Accordingly, the controller can further operate the support cylinder to increase the support force formed on the support shaft, and thus, more actively secure the support force of the outrigger unit in an environment where the ground is not hard to prevent the roller truck from tipping over. And more stable bucketing / loading / unloading.

100: body 105: rugger frame
110: first chain engaging portion 115: boom
120: boom cylinder 125: the second chain hook
130: dumping hinge 135: bucket
140: chain member 145: support member
150: outrigger unit 155: hook groove
160: Hook LC1, LC2, LC3, LC4: 1, 2, 3, 4 load cells
170: controller 175: support shaft
180: support cylinder 185: support arm
190: Length adjustment cylinder 195: Rotary cylinder
200: trigger load cell 205: hook rotation cylinder
210: fixing member 215: elastic member
220: slope 225: hydraulic operation unit
230: Boom hinge

Claims (6)

A vehicle body 100 of a transportation means;
A rugger frame 105 mounted on the vehicle body 100;
Boom 115 is coupled to one side of the rugger frame 105 through the boom hinge 230, the first chain engaging portion 110 is formed at the front end;
A boom cylinder 120 having one end hinged to one side of the boom 115 and the other end hinged to the rugger frame 105;
A second chain engaging portion 125 is formed on both sides of the front and rear sides of the two sides, the dumping hinge 130 is formed protruding at the rear end of the side, the bucket 135 disposed on the rugger frame 105;
The ring formed at both ends is fixed to the second chain engaging portion 125, and the ring formed at the central portion in the longitudinal direction is a chain member 140 fixed to the first chain engaging portion 110;
An outrigger unit 150 coupled to both rear sides of the vehicle body 100 and configured to lower or raise the support member 145 provided at the bottom thereof to the ground side;
A hook 160 that is hinged to the rear end of the vehicle body 100 and a hook groove 155 that engages with the dumping hinge 130 at the front end;
A plurality of load cells (LC1, 2, 3, 4) for sensing the load distribution by supporting the rugger frame (105) in the vehicle body (100); And
A controller 170 for controlling the operation of the outrigger unit 150 and the boom cylinder 120 according to the load signal sensed by the load cells LC1, 2, 3, 4;
When the load signal sensed by the first, second, third, and fourth load cells LC1, 2, 3, and 4 exceeds a preset limit, the controller 170 stops the operation of the boom cylinder 120. Load rugger device with a rollover prevention system characterized by.
According to claim 1,
The outrigger unit 150 includes a support cylinder 180 that lowers or raises a support shaft 175 provided with the support member 145 at a lower end; And
One side is coupled to the vehicle body 100, the support arm 185 is coupled to the support cylinder 180 on the other side; Load rugger device is applied, characterized in that the rollover prevention system comprising a.
According to claim 2,
A length adjusting cylinder 190 hinged to the vehicle body to adjust the length of the support arm 185; And
A rotation cylinder 195 mounted on the vehicle body to control the rotational position of the length adjustment cylinder 190; Load rugger device is applied, characterized in that the rollover prevention system further comprises a.
According to claim 1,
A hook rotation cylinder 205 for rotating the hook 160 hinged to the vehicle body 100; Load rugger device is applied to the roll-over prevention system comprising a.
delete According to claim 2,
The outrigger unit 150 is a trigger load cell 200 is configured on the support member to sense the support force; Load rugger device is applied, characterized in that it further comprises a rollover prevention system.

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