JP2015054532A - Cargo discharger for dump truck - Google Patents

Abstract

PROBLEM TO BE SOLVED: To discharge a cargo exceeding a gate height even when the gate is bottom-opened.SOLUTION: A cargo discharger 61 for a dump truck related to this invention comprises a liquid-tight storage body 62 attached to a load-carrying platform 2, a prismatic block 65 installed on the load-carrying platform 2 via the liquid-tight storage body, an abrasion resistant sheet 63 laid over the bottom top surface of the liquid-tight storage body 62 and the slope surface 69 of the prismatic block 65, and a slidable sheet 66 laid over the abrasion resistant sheet in the form of traversing a position corresponding to a slope start side edge part 70 of the prismatic block 65. The liquid-tight storage body 62 is formed into a box consisting of a rectangular bottom 71 and a peripheral wall part 72 rising from its circumference. The prismatic block 65 is formed into a near triangle to keep one of two orthogonal side faces in contact with the top face of the bottom 71 of the liquid-tight storage body 62, and the other in contact with the peripheral wall part 72 where a gate 3 is positioned, respectively, thereby forming an up-grade slope surface 69 directing to the upper edge of the gate 3.

Description

  The present invention mainly relates to a load for a dump truck which is applied when unloading a load having a size exceeding the height of the cage, for example, a soil generated in a flexible container bag or the like, or a large amount of concrete demolition. Concerning the discharge device.

  During transportation, the dump truck prevents the fall of the load with an enclosure called an ridge arranged so as to surround the loading platform, and, for example, a gate that can be opened and closed at the rear of the enclosure that surrounds the loading platform. In unloading, the gate is opened and the loading platform is raised and tilted to perform a so-called dump-up operation, whereby the cargo loaded on the loading platform is discharged backward.

  The dump truck gate has a general lower opening type that is configured so that the upper edge of the tilt is rotated about the swing axis and the lower edge of the tilt as the rotation axis. There is an upper gate type called F gate (L gate) configured to rotate by electric or hydraulic pressure. If the latter gate is used, it is possible to knock down the cage until it is almost the same height as the loading platform. Therefore, when dumping up, the load on the loading platform can be discharged smoothly.

JP-A-8-164783

  On the other hand, in the case of a general gate that opens and closes the tilting door, the space formed between the pivoting shaft and the loading platform during dumping is the so-called cargo discharge space. In the case of loads exceeding the size, it is difficult to discharge by dumping up due to interference with the upper edge of the tilt, and unloading by lifting using heavy machinery is forced.

  However, since the open gate can realize an opening / closing mechanism with a simpler structure, many dump trucks employing the same type of gate are in operation, and their effective utilization is desired.

  The present invention has been made in consideration of the above-described circumstances, and can be used for a dump truck capable of discharging a load having a size exceeding the height of the cage even when the gate opening / closing method is downwardly opened. The purpose is to provide a cargo discharge device.

In order to achieve the above object, the dump truck load ejector according to the present invention has at least a part of a lift erected so as to surround the loading platform as described in claim 1 with the upper edge as a rotation axis. In the dump truck loading / unloading tool installed in the dump truck composed of a rotating gate,
The prismatic block is provided on the loading platform, and the prismatic block is configured such that, of the side surfaces parallel to the material axis, one of the side surfaces substantially orthogonal to each other faces downward and the other is the gate facing surface. The side face that faces the gate and is inclined with respect to the orthogonal side face is configured to be installed on the cargo bed in such a posture that the slope faces an upward slope toward the upper edge of the gate.

  Further, the dump truck load ejector according to the present invention is formed in a box shape so that the bottom surface of the bottom portion is in contact with the loading platform and the outer peripheral surface of the rising portion rising from the periphery of the bottom portion is in contact with the tilt. The prismatic block is configured such that its installation surface is in contact with the upper surface of the bottom portion and its gate facing surface is in contact with the inner peripheral surface of the rising portion. It is.

  In the dump truck load ejector according to the present invention, the lower surface of the first bottom portion is in contact with the loading platform, and the lower surface of the second bottom portion formed integrally with the first bottom portion is installed on the loading platform. Abuts on the slope surface of the prismatic block, and is formed in a boat shape so that the outer peripheral surface of the peripheral wall portion rising from the peripheral edge of the first bottom portion and the second bottom portion is in contact with the tilt. A liquid-tight container is provided.

  In addition, the dump truck load ejector according to the present invention is configured such that the prismatic block is installed on the cargo bed with the liquid-tight container interposed therebetween, and the upper surface of the bottom of the liquid-tight container and the corners. Each of the first bottom and the second bottom constituting the liquid-tight container in a state in which the prismatic block is directly installed on the loading platform, and is formed so as to cover the slope surface of the columnar block. A wear-resistant sheet is provided so as to cover the upper surface.

  Further, the dump truck load ejector according to the present invention includes a slidable sheet laid so as to straddle the slope start side edge of the prismatic block or its equivalent position, and the slidable sheet, The upper surface of the loading platform and the slope surface of the prismatic block are formed so as to be integrally covered, and the upper surface of the bottom of the liquid-tight container and the slope surface of the prismatic block are formed so as to be integrally covered. The upper surfaces of the first and second bottoms constituting the liquid-tight container are covered so that the upper surface of the wear-resistant sheet is covered.

  Further, the dump truck load ejector according to the present invention includes a plurality of the wear-resistant sheet or the slidable sheet in addition to the wear-resistant sheet so that the total width dimension is larger than the width of the cargo bed. It is comprised by the sheet piece of this.

  The dump truck loading / unloading device according to the present invention is applied to a dump truck in which at least a part of the tilt is constituted by a so-called downwardly-opening gate, and is adjacent to the gate among the loading platform of the dump truck. The prismatic block is installed in the area, and the load is placed in the remaining area, but when installing the prismatic block on the loading platform, one of the side surfaces that are substantially orthogonal to each other among the side surfaces parallel to the material axis. Installed on the platform so that the installation surface faces downward, the other faces the gate as the gate-facing surface, and the side surface that is arranged obliquely with respect to the orthogonal side surface is an upward slope surface toward the upper edge of the gate. .

  In this way, when a dump-up operation is carried out to unload the load, the load slides down the slope surface of the prismatic block and then gets over the gate without being blocked by the gate. It is discharged to the back or side.

  Therefore, even if the load exceeds the height of the cage, there is no possibility of interference with the upper edge of the cage during dumping.

  The dump truck to which the present invention is applied is specific as long as at least a part of the tilt erected so as to surround the loading platform is composed of a gate that rotates about the upper edge as a rotation axis. The configuration is arbitrary, and a typical example is a one-sided dump truck (rear dump) with the rear door located at the rear of the loading platform, but the lower opening gate is located at the side of the loading platform. One- or two-way open dump trucks (side dumps) or three-way open dump trucks (tri-directional dump trucks) with lower gates located at the rear and both sides of the loading platform are also included.

  As long as the prismatic block has two side surfaces substantially orthogonal to each other among the side surfaces parallel to the material axis, the specific configuration thereof is arbitrary, as long as it has a side surface disposed obliquely with respect to the orthogonal side surface, A typical example is a right-angled triangle cross section in the direction perpendicular to the axis of the material.For example, it is configured to have a rectangular cross-section by chamfering the joints between the orthogonal side surfaces, and the gate facing surface. Strictly speaking, it is configured to have a pentagonal cross section by chamfering the connecting portion between the side surface to be the slope surface and the side surface to be the slope surface, or to be configured to chamfer the connecting portion between the end surface (upper surface and lower surface) and the side surface. It doesn't matter.

  In addition, the prismatic block may be rounded instead of chamfered between the side surfaces or between the side surface and the end surface, and the side surface to be the slope surface does not necessarily have to be a flat surface. For example, a configuration in which the load is smoothly curved so as to slide down may be used.

  The prismatic block is preferably detachable with respect to the dump truck bed, and for that purpose, it is preferably made of a lightweight material, for example, styrene foam.

  When installing the prismatic block on the loading platform, the installation method is arbitrary, but when installing the prismatic block directly on the loading platform, for example, a magnet sheet is attached to the installation surface of the prismatic block or in addition to the gate facing surface. In addition, by being configured to be magnetically attached to the loading platform or the gate via the magnet sheet, it is possible to easily attach and detach the loading platform while maintaining the installation state.

  If there is a risk of leakage of liquids, especially liquids containing harmful substances or contaminants, from the cargo, the bottom surface of the bottom part comes into contact with the loading platform, and the outer peripheral surface of the peripheral wall part rising from the periphery of the bottom part comes into contact with the container In addition to the liquid-tight container formed in a box shape as described above, the above-described prismatic block is mounted on the bottom surface of the liquid-tight container and the gate-facing surface is the peripheral wall portion. It is configured so as to be in contact with the inner peripheral surface, or the lower surface of the first bottom portion is in contact with the loading platform, and the second bottom surface integrally formed with the first bottom portion is installed at the corner of the loading platform. What is necessary is just to make it the structure formed in the boat shape so that the outer peripheral surface of the surrounding wall part which stands | starts from the peripheral surface of a 1st bottom part and a 2nd bottom part may contact | abut to a slope while being contact | abutted to the slope surface of a columnar block. .

  In such a configuration, since the liquid leaked from the cargo is held in the liquid-tight container, even if a liquid containing harmful substances or pollutants leaks from the cargo, the liquid is being transported or stored. There is no risk of spreading to the environment.

  How to attach the liquid-tight container to the loading platform or the prismatic block is arbitrary, but with a configuration in which a magnet sheet is attached to the bottom surface of the bottom and the outer peripheral surface of the peripheral wall part constituting the liquid-tight container, Or if it is set as the structure which attached the magnetic sheet to the lower surface of a 1st bottom part, and the outer peripheral surface of a surrounding wall part, it will become possible to attach or detach to a loading platform easily, maintaining an attachment state.

  Of the above-described configurations provided with the liquid-tight container, in the configuration in which the prismatic block is installed on the cargo bed via the liquid-tight container, for example, the installation surface of the prismatic block or the gate in addition thereto By adhering a double-sided adhesive tape to the opposite surface, and by attaching to the peripheral part of the liquid-tight container in addition to the bottom part of the liquid-tight container through the double-sided adhesive tape, It can be easily attached to and detached from the liquid-tight container.

  Here, when the wear resistance of the liquid-tight container is not sufficient, the liquid-tight container is formed so as to cover the upper surface of the bottom of the liquid-tight container and the slope surface of the prismatic block, or constitutes the liquid-tight container. It is desirable to further comprise a wear-resistant sheet formed so as to cover the upper surfaces of the first bottom portion and the second bottom portion.

  According to such a configuration, it is possible to prevent the deterioration of wear of the liquid-tight container or the prismatic block in addition to the liquid-tight container accompanying sliding of the load.

  The wear-resistant sheet is formed by using, for example, a double-sided adhesive tape, the upper surface of the bottom of the liquid-tight container and the slope surface of the prismatic block, or the upper surfaces of the first and second bottoms constituting the liquid-tight container. You can stick it to.

  When dumping up, if there is a risk that the load will be caught at the slope start side edge or the equivalent position due to the angle change due to the slope start side edge of the prismatic block, the slope start side edge of the prismatic block Or it is good to set it as the structure further provided with the slidable sheet | seat laid so that the equivalent position may be straddled.

Depending on the presence or absence of the liquid-tight container and its configuration, or the presence or absence of the wear-resistant sheet and its configuration, the slidable sheet is as follows.
(a) When the prismatic block is installed directly on the loading platform and the liquid-tight container is not used, the upper surface of the loading platform and the slope surface of the prismatic block should be covered integrally.
(b) When the prismatic block is installed at the bottom of the liquid-tight container and no wear-resistant sheet is used, the top surface of the bottom of the liquid-tight container and the slope surface of the prismatic block are integrally covered. like
(c) When the liquid-tight container is installed on the prismatic block and the wear-resistant sheet is not used, the upper surfaces of the first bottom part and the second bottom part constituting the liquid-tight container are To be covered
(d) When using an abrasion resistant sheet, it is formed so that the upper surface of the abrasion resistant sheet is covered regardless of the vertical relationship between the prismatic block and the liquid-tight container.

  According to these configurations, there is no possibility that the load is caught at the slope start side edge portion of the prismatic block or its corresponding position and the natural fall of the load is hindered.

  When laying the slidable sheet, for example, using a double-sided adhesive tape, lay so as to bridge the slope surface of the loading platform and the prismatic block, and the bottom surface of the liquid-tight container and the slope surface of the prismatic block. What is necessary is just to make it lay so that it may span and to lay on each upper surface of the 1st bottom part and 2nd bottom part which comprise a liquid-tight container, or to lay on the upper surface of an abrasion-resistant sheet | seat.

  The wear-resistant sheet or slidable sheet may be composed of a single sheet with the full width of the loading platform, but multiple sheets that are set so that the total width dimension is larger than the width of the loading platform. If they are made up of sheet pieces, they can be applied to various types of dump trucks because their full width can be adjusted to the width of the loading platform by overlapping them with an appropriate stacking allowance. , Improve versatility.

It is a figure of the load ejector 1 for dump trucks concerning 1st Embodiment, (a) is a side view, (b) is the arrow view seen from the AA line direction. It is the figure of the load discharge tool 1 for dump trucks similarly, (a) is an assembly perspective view, (b) is a whole perspective view. It is the figure which showed a mode that the load 31 was handled using the load discharge tool 1 for dump trucks, (a) is the state during conveyance, (b) is the side view which each showed the state at the time of dumping up. It is the figure which showed the prismatic block 5a which concerns on a modification, (a) is a rear view of the prismatic block 5a, (b) is an arrow view seen from the BB line direction, (c) is dumping up The side view which showed the state of time. It is the figure which showed the slidable sheet | seat 6a which concerns on a modification, (a) is the perspective view which showed the state before superimposition, (b) is the perspective view which showed the state after superimposition. It is a figure of the load ejector 61 for dump trucks concerning 2nd Embodiment, (a) is a side view, (b) is the arrow line view seen from CC line direction. The assembly perspective view of the load discharge tool 61 for dump trucks. The whole perspective view of the load discharge tool 61 for dump trucks similarly. It is the figure which showed a mode that the load 31 was handled using the load discharge tool 61 for dump trucks, (a) is the state during conveyance, (b) is the side view which each showed the state at the time of dumping up. It is a figure of the load ejector 101 for dump trucks concerning a modification, (a) is an assembly perspective view, (b) is a whole perspective view.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of a load ejector for a dump truck according to the present invention will be described with reference to the accompanying drawings.

[First Embodiment]
FIG. 1 is a side view and a plan view showing a dump truck load ejector according to a first embodiment, and FIG. 2 is an assembly perspective view and an overall perspective view of the same. As can be seen from these drawings, the dump truck load ejector 1 according to the present embodiment has a tilt located rearward among the three tilts erected so as to surround both sides and the rear of the loading platform 2. It is installed in a dump truck 4 composed of a gate 3 that rotates with an upper edge as a rotation axis, and includes a prismatic block 5 and a slidable sheet 6.

  The prismatic block 5 is formed in a substantially triangular prism shape having two side surfaces substantially orthogonal to each other and side surfaces arranged obliquely with respect to the orthogonal side surfaces as side surfaces parallel to the material axis. One of the side surfaces is brought into contact with the upper surface of the loading platform 2 as the installation surface 7 and the other is brought into contact with the gate 3 as the gate facing surface 8 so as to be arranged obliquely with respect to the installation surface 7 and the gate facing surface 8. The side surface is configured to be installed on the loading platform 2 as a slope surface 9 having an upward slope toward the upper edge of the gate 3.

  The prismatic block 5 has the width and height in the posture installed on the loading platform 2 as the inner width of the loading platform 2 and the height of the gate 3, respectively, and wears the outer peripheral surface of the block body formed of polystyrene foam. It is desirable to wrap it with a sheet. The wear-resistant sheet can be formed by laminating synthetic rubber on both surfaces of the synthetic fiber.

  As described above, the prismatic block 5 has a generally triangular prism shape as a whole, but the edge where the gate facing surface 8 and the slope surface 9 meet is chamfered so that it is strictly a quadrangular prism. Yes, it is possible to prevent damage when discharging the load by dumping up.

  The slidable sheet 6 is configured so as to be able to be integrally laid on the loading platform 2 and the slope surface 9 of the prismatic block 5 so as to straddle the slope start side edge 10 of the prismatic block 5, and the width in the laid state Is a width obtained by adding a margin d to the length of the slope surface 9 of the prismatic block 5.

  The margin length d, that is, the length of the portion of the slidable sheet 6 that is in contact with the loading platform 2 may be determined as appropriate, but all of the loading platform 2 except for the region where the prismatic block 5 is installed. It is also possible to determine that it is covered.

  The slidable sheet 6 can be constituted by laminating polytetrafluoroethylene or ultrahigh molecular weight polyethylene on a base material such as synthetic rubber.

  In order to transport a load using the dump truck load ejector 1 according to the present embodiment, first, as shown in FIG. 3A, the prismatic block 5 is placed on the gate 3 of the loading platform 2 of the dump truck 4. Install in an adjacent area.

  At the time of installation, the installation surface 7 of the prismatic block 5 is directed downward to come into contact with the upper surface of the loading platform 2, and the side facing the gate 3 with the gate facing surface 8 facing the gate 3 so as to be orthogonal to the gate. Is a slope surface 9 having an upward slope toward the upper edge of the gate 3.

  Here, if a magnet sheet is attached to the installation surface 7 and the gate facing surface 8 of the prismatic block 5 and is configured to be magnetically attached to the loading platform 2 and the gate 3 via the magnet sheet, the installation state is changed. It can be easily attached to and detached from the loading platform 2 while being held. In addition, it is desirable that the magnet sheet is subjected to non-slip processing on the magnetized surface.

  Next, the upper surface of the loading platform 2 in the vicinity of the slope start side edge and the prismatic block so that the slidable sheet 6 is straddled across the slope start side edge 10 of the prismatic block 5 using, for example, a double-sided adhesive tape. 5 is integrally laid on the slope surface 9. In addition, about the part laid in the upper surface of the loading platform 2, if it replaces with a double-sided adhesive tape and a magnet sheet is used, detachability will further improve.

  Next, the load 31 in which the generated soil is accommodated in the flexible container bag is placed on the upper surface of the loading platform 2 excluding the region adjacent to the gate 3 where the prismatic blocks 5 are arranged. In the present embodiment, it is assumed that moisture does not leak from the cargo 31.

  Next, the dump truck 4 is operated to transport the load 31 to the unloading point, and then the loading platform 2 of the dump truck 4 is raised at the unloading point as shown in FIG.

  In this way, as shown in the figure, the load 31 slides over the upper surface of the slidable sheet 6 along the slope surface 9 of the prismatic block 5 and then gets over the gate without being blocked by the gate 3. In this way, the dump truck 4 is discharged to the rear.

  As explained above, according to the dump truck load ejector 1 according to the present embodiment, the prismatic block 5 of the loading platform 2 is arranged so that the slope surface 9 of the block 5 has an upward slope toward the upper edge of the gate 3. Since it is installed in the area adjacent to the gate, there is no possibility of interference with the upper edge of the gate 3 at the time of dumping even if the load 31 exceeds the height of the gate 3.

  Therefore, even with the dump truck 4 having the lower gate 3, the large load 31 can be smoothly unloaded from the loading platform 2 by a normal dump-up operation, and unloading using heavy machinery is unnecessary. At the same time, it is possible to effectively utilize the dump truck 4 having a large number of operating units.

  Further, according to the dump truck load ejector 1 according to the present embodiment, the slidable sheet is placed on the loading platform 2 and the slope surface 9 of the prismatic block 5 so as to straddle the slope start side edge 10 of the prismatic block 5. 6 is integrally laid, it is possible to prevent the load 31 from being caught at the slope start side edge 10 of the prismatic block 5.

  Moreover, according to the dump truck load ejector 1 according to the present embodiment, the prismatic block 5 and the slidable sheet 6 are configured to be detachable, so that the dump truck 4 can be easily installed and removed. it can.

  In this embodiment, the case where the load 31 in which the generated soil is accommodated in the flexible container bag is discharged is described as an example. However, if the load exceeds the height of the tilt, the interference with the gate is avoided smoothly. For example, a large amount of concrete demolition can be targeted, and moreover, even with a load that does not exceed the height of the cage, it is of course possible to discharge using the present invention. is there.

  Further, in this embodiment, the dump truck to which the present invention is applied is the dump truck 4 that is a rear dump with the gate system opened in one direction, but instead of this, a two-sided dump truck (side dump) or a three-way dump truck is used. It can be applied to an open dump truck (three-turn dump truck).

  In addition, when applied to a side dump, since the tilt located on the side becomes the gate, the prismatic block 5 is configured so that the width becomes the length of the loading platform, and this is used as the gate located on the side. What is necessary is just to arrange adjacently.

  In this embodiment, the slope surface 9 of the prismatic block 5 is a flat surface. However, as shown in FIGS. 4 (a) and 4 (b), the slope surface 9 is replaced by a cross section orthogonal to the material axis. Alternatively, a prismatic block 5a having a sloped surface as a concave curved surface may be used.

  In such a configuration, the slope of the slope surface 9a gradually increases and the slope at the slope start side edge portion 10a of the prismatic block 5a is smaller than the slope of the slope surface 9. As shown in FIG. 3C, the load smoothly moves from the loading platform 2 to the slope surface 9a of the prismatic block 5a, and there is no possibility of being caught at the slope start side edge 10a of the prismatic block 5a.

  Here, the prismatic block 5a is composed of a block main body formed of foamed polystyrene and a slidable sheet covering its outer peripheral surface, and the slidable sheet is formed on a base material such as synthetic rubber with polytetrafluoroethylene or If a sliding material such as ultrahigh molecular weight polyethylene is laminated, the load 31 can be discharged more smoothly.

  Further, in this embodiment, the edge where the gate facing surface 8 and the slope surface 9 meet is chamfered, but the chamfering may be omitted if there is no risk of damage at the time of discharging the load.

  Further, in this embodiment, the slidable sheet 6 is constituted by a single sheet, but instead of this, as shown in FIG. 5, the total width dimension is set to be larger than the width of the loading platform 2. Alternatively, a slidable sheet 6a composed of two slidable sheet pieces 51, 51 may be adopted.

  In such a configuration, the two slidable sheet pieces 51, 51 can be adjusted to the width of the loading platform 2 by overlapping the two slidable sheet pieces 51, 51 with an appropriate overlap margin as shown in FIG. It can be applied to various types of dump trucks, and versatility is improved.

  On the other hand, in this embodiment, the slidable sheet 6 is integrally laid on the slope surface 9 of the loading platform 2 and the prismatic block 5 so as to straddle the slope start side edge portion 10 of the prismatic block 5, thereby the prismatic block. Although the load 31 is prevented from being caught at the slope start side edge 10 of the slope 5, if there is no such concern, the slidable sheet 6 and the slidable sheet 6a may be omitted. It doesn't matter.

  In particular, when the prismatic block 5a described with reference to FIG. 4 is used in place of the prismatic block 5, the prismatic block is further composed of a block main body formed of foamed polystyrene and a slidable sheet covering its outer peripheral surface. When configured, smooth discharge of the load 31 can be expected without using the slidable sheet 6 or the slidable sheet 6a.

[Second Embodiment]
Next, a second embodiment will be described. Note that components that are substantially the same as those of the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

  6 is a side view and a plan view showing a dump truck load ejector according to the second embodiment, FIG. 7 is an assembly perspective view thereof, and FIG. 8 is an overall perspective view thereof. As can be seen from these drawings, the dump truck load ejector 61 according to the present embodiment is installed on the dump truck 4, and includes a liquid-tight container 62 attached to the loading platform 2, the liquid-tightness. A prismatic block 65 installed on the loading platform 2 via a container, an abrasion resistant sheet 63 laid on the prismatic block, and a slidable sheet 66 laid on the abrasion resistant sheet are provided. .

  As can be clearly seen in FIG. 7, the liquid-tight container 62 is formed in a box shape including a rectangular bottom portion 71 and a peripheral wall portion 72 rising from the periphery thereof, and the lower surface of the bottom portion 71 is in contact with the loading platform 2. At the same time, the outer peripheral surface of the peripheral wall portion 72 is brought into contact with the inner surfaces of the respective tilts erected on the front edge portion, both side edge portions, and the rear edge portion of the loading platform 2. Here, the tilt erected on the rear edge is the gate 3 described in the first embodiment.

  The liquid-tight container 62 is formed by laminating synthetic rubber on both surfaces of the synthetic fiber to form a rectangular sheet, and the four corners of the rectangular sheet are folded, while the center is the bottom 71 and the periphery is Each of the edge portions of the rectangular sheet corresponding to the four sides can be bent at a right angle so as to be the peripheral wall portion 72.

  Here, a magnet sheet (not shown) is attached to the lower surface of the bottom portion 71 and the outer peripheral surface of the peripheral wall portion 72 constituting the liquid-tight container 62, and the upper surface of the cargo bed 2 is interposed via the magnet sheet. Each of the four tilts including the gate 3 can be magnetically attached to the inner surface. The magnet sheet is preferably non-slip processed on its magnetically attached surface.

  The prismatic block 65 is configured in a substantially triangular prism shape having two side surfaces substantially orthogonal to each other and side surfaces arranged obliquely with respect to the orthogonal side surfaces as side surfaces parallel to the material axis. One of the side surfaces is brought into contact with the upper surface of the bottom 71 constituting the liquid-tight container 62 with the installation surface 67 as the other side, and the gate 3 of the peripheral wall portion 72 of the liquid-tight container 62 has the other as the gate facing surface 68. By making contact with the peripheral wall portion 72 located at the rear, the side surface disposed obliquely with respect to the installation surface 67 and the gate facing surface 68 is used as an upward slope surface 69 facing the upper edge of the gate 3. It can be installed in.

  The prismatic block 65 has a width and a height in a posture installed on the loading platform 2 through the liquid-tight container 62, and has an inner width of the loading platform 2 and a height of the gate 3, respectively, and is formed of foamed polystyrene. It is desirable that the outer peripheral surface of the block body is wrapped with a wear-resistant sheet. The wear-resistant sheet can be formed by laminating synthetic rubber on both surfaces of the synthetic fiber.

  As described above, the prismatic block 65 has a generally triangular prism shape as a whole, but the edge where the gate facing surface 68 and the slope surface 69 meet and the edge where the installation surface 67 and the gate facing surface 68 meet. Strictly speaking, these parts are chamfered by chamfering them, and by chamfering the joint portion between the gate facing surface 68 and the slope surface 69, it is possible to prevent damage when discharging the load by dumping up. it can.

  Further, when the liquid-tight container 62 is manufactured, when the bottom portion 71 and the peripheral wall portion 72 are bent at a right angle so that the bottom portion 71 and the peripheral wall portion 72 are along the tilt, the corner portion formed by the load platform 2 and the tilt is formed. In this case, there may be slack in the connecting portion between the bottom portion 71 and the peripheral wall portion 72, or conversely, the connecting portion may be lifted from the corner of the joint, but the connecting portion between the installation surface 67 and the gate facing surface 68 may be If the chamfering is performed, it is possible to avoid the interference between the slack portion or the floating portion and the prismatic block 65 in advance.

  The wear-resistant sheet 63 has a width so that the slope surface 69 of the prismatic block 65 and the upper surface of the bottom 71 of the liquid-tight container 62 are covered except for the area where the prismatic block 65 is installed. And the length can be determined, and synthetic rubber can be laminated on both sides of the synthetic fiber.

  The slidable sheet 66 is configured to be laid on the upper surface of the wear-resistant sheet 63 so as to straddle the corresponding position of the slope start side edge portion 70 of the prismatic block 65, and the width in the laid state is set to the loading platform. The inner width and length of 2 are the length of the slope surface 9 of the prismatic block 5 plus the margin length d.

  The margin length d, i.e., the front extending length starting from the slope start side edge 70 of the prismatic block 65 may be determined as appropriate, but may be determined so that the entire wear-resistant sheet 63 is covered. .

  The slidable sheet 66 can be configured by laminating polytetrafluoroethylene or ultrahigh molecular weight polyethylene on a base material such as synthetic rubber.

  In order to transport the load using the dump truck load ejector 61 according to the present embodiment, first, the liquid-tight container 62 is attached to the loading platform 2 of the dump truck 4. At the time of attachment, the upper surface of the loading platform 2 and the inner surfaces of the four tilts including the gate 3 are used by using a magnet sheet attached to the lower surface of the bottom portion 71 and the outer peripheral surface of the peripheral wall portion 72 constituting the liquid-tight container 62. Each may be magnetically attached.

  There are magnet sheets that do not have a specific magnetization direction and those that have a magnetization direction in a certain direction, but when the latter magnet sheet is used, it is located in the front of the outer peripheral surface of the peripheral wall portion 72. Placed so that the magnetization direction is perpendicular to the length direction of the cargo bed at the location located on the side of the outer peripheral surface of the peripheral wall 72 and the bottom surface of the bottom 71 so that the magnetization direction is horizontal. By doing so, it is possible to increase the resistance to slipping down during dump-up.

  Next, the prismatic block 65 is installed on the loading platform 2 with the liquid-tight container 62 interposed. In installation, the installation surface 67 of the prismatic block 65 is brought into contact with the bottom 71 of the liquid-tight container 62, and the gate-facing surface 68 of the prismatic block is interposed through the peripheral wall 72 of the liquid-tight container 62. The gate facing surface is brought into contact with the inner surface of the peripheral wall portion 72 so as to face the gate 3 so that the side surface orthogonal to the gate surface becomes a slope surface 69 having an upward slope toward the upper edge of the gate 3. To do.

  When installing the prismatic block 65, for example, using a double-sided adhesive tape, the installation surface 67 and the gate facing surface 68 of the prismatic block are respectively set on the upper surface of the bottom 71 and the peripheral wall 72 of the liquid-tight container 62. What is necessary is just to attach to a surrounding surface.

  Next, the top surface of the bottom portion 71 of the liquid-tight container 62 excluding the slope surface 69 of the prismatic block and the region where the prismatic block 65 is installed so as to straddle the slope start side edge 70 of the prismatic block 65. The wear resistant sheet 63 is integrally laid using, for example, a double-sided adhesive tape, and then the slidable sheet 66 is straddled across the corresponding position of the slope start side edge 70 of the prismatic block 65. Lay on the top surface.

  Next, as shown in FIG. 9 (a), the load 31 is placed in an area of the upper surface of the bottom 71 that constitutes the liquid-tight container 62 except for the place where the prismatic block 65 is disposed.

  Next, the load 31 is transported to the unloading point by operating the dump truck 4, but since the load 31 is placed in the liquid-tight container 62, even if moisture leaks from the load, The moisture stays in the liquid-tight container due to the water-tightness of the liquid-tight container 62 and does not leak to the outside of the dump truck 4.

  Next, the loading platform 2 of the dump truck 4 is raised at the unloading point as shown in FIG.

  In this way, as shown in the figure, the load 31 slides over the upper surface of the slidable sheet 66 along the slope surface 69 of the prismatic block 65 and then climbs over the gate without being blocked by the gate 3. In this way, the dump truck 4 is discharged to the rear.

  As explained above, according to the dump truck load ejector 61 according to the present embodiment, the prismatic block 65 of the loading platform 2 is arranged so that the slope surface 69 of the prism block 65 has an upward slope toward the upper edge of the gate 3. Since it is installed in the area adjacent to the gate, there is no possibility of interference with the upper edge of the gate 3 at the time of dumping even if the load 31 exceeds the height of the gate 3.

  Therefore, even with the dump truck 4 having the lower gate 3, the large load 31 can be smoothly unloaded from the loading platform 2 by a normal dump-up operation, and unloading using heavy machinery is unnecessary. At the same time, it is possible to effectively utilize the dump truck 4 having a large number of operating units.

  Further, according to the dump truck load ejector 61 according to the present embodiment, the box-shaped liquid-tight container 62 is attached to the loading platform 2 of the dump truck 4 and the liquid-tight container is interposed. Since the columnar block 65 is installed on the loading platform 2 and the region excluding the region where the rectangular columnar block 65 is installed is used as the loading region of the liquid-tight container 62, moisture leaks from the loading 31. In this case, the moisture is retained in the liquid-tight container 62.

  Therefore, even if water containing harmful substances or pollutants leaks from the cargo 31, there is no risk of the harmful substances or pollutants diffusing into the environment during transportation or storage, and container dump for transporting industrial waste There is no need to use.

  Further, according to the dump truck load ejector 61 according to the present embodiment, the slope surface 69 of the prismatic block 65 and the top surface of the bottom 71 of the liquid-tight container 62 excluding the region where the prismatic block 65 is installed. Since the wear-resistant sheet 63 is integrally laid, it is possible to prevent the liquid-tight container 62 and the prismatic block 65 from being deteriorated due to the sliding of the load 31 in advance.

  Further, according to the dump truck load ejector 61 according to the present embodiment, the slidable sheet 66 is placed on the upper surface of the wear resistant sheet 63 so as to straddle the corresponding position of the slope start side edge 70 of the prismatic block 65. Since the laying is performed, it is possible to prevent the load 31 from being caught due to the change in the angle by the slope start side edge portion 70 of the prismatic block 65.

  Further, according to the dump truck load ejector 61 according to the present embodiment, the liquid-tight container 62, the prismatic block 65, the wear-resistant sheet 63, and the slidable sheet 66 are configured to be detachable. Installation and removal from the truck 4 can be easily performed.

  In the present embodiment, the case where the load 31 in which the generated soil is accommodated in the flexible container bag is discharged is taken as an example. However, as described in the first embodiment, the present invention is used to transport and discharge loads of all sizes. The application is not limited to loads exceeding the height of the cage.

  In the present embodiment, the present invention is applied to the dump truck 4. However, as in the first embodiment, instead of the dump truck 4, a two-sided dump truck (side dump) or a three-way opened system is used. It is possible to apply to a dump truck (three-turn dump).

  In the present embodiment, the liquid-tight container of the present invention is the liquid-tight container 62 formed in a box shape by bending a rectangular sheet, but a plurality of liquid-tight containers may be used as long as the liquid-tightness is ensured. The sheet pieces may be joined together to produce a liquid-tight container.

  Further, although not particularly mentioned in the present embodiment, chamfers are made at a joint portion between the installation surface 67 of the prismatic block 65 and the end surfaces orthogonal to the installation surface 67 (two surfaces positioned laterally in the posture installed on the loading platform 2). You may do it.

  According to such a configuration, as in the configuration of the embodiment in which chamfering is performed on the connection portion between the installation surface 67 and the gate facing surface 68, the slack portion and the floating portion generated when the liquid-tight container 62 is manufactured and the prismatic shape. Interference with the block 65 can be avoided in advance.

  In the present embodiment, the slope surface 69 of the prismatic block 65 is a flat surface. However, in the same manner as in FIGS. 4A and 4B which are modifications of the first embodiment, instead of the slope surface 69, a material is used. You may use the prismatic block which used the curved surface which becomes concave downward in the cross section orthogonal to an axis | shaft as a slope surface.

  According to such a configuration, similarly to FIG. 4C, it is possible to more reliably prevent the load 31 from being caught at the slope start side edge of the prismatic block during dumping.

   In the present embodiment, the edge where the gate facing surface 68 and the slope surface 69 meet is chamfered, but this may be omitted if there is no risk of damage during discharge of the load. Similarly, the joint portion between the installation surface 67 and the gate facing surface 68 is chamfered, but there is no slack or floating portion at the joint portion between the bottom 71 and the peripheral wall 72 of the liquid-tight container 62. If present, chamfering can be omitted.

  Further, in the present embodiment, the slidable sheet 66 is constituted by a single sheet, but instead of this, the total width dimension is larger than the width of the loading platform 2 as described in FIG. 5 of the first embodiment. Alternatively, a slidable sheet composed of two slidable sheet pieces set to be large may be adopted, and the wear-resistant sheet may be replaced by a width instead of the wear-resistant sheet 63. It is possible to configure the wear-resistant sheet composed of two wear-resistant sheet pieces set so that the total dimension is larger than the width of the loading platform 2.

  In these configurations, two slidable sheet pieces or two wear-resistant sheet pieces can be overlapped with an appropriate stacking margin so that the entire width thereof can be adjusted to the width of the loading platform 2, It can be applied to various types of dump trucks, improving versatility.

  On the other hand, in the present embodiment, the slidable sheet 66 is laid on the wear-resistant sheet 63 so as to straddle the position corresponding to the slope start side edge 70 of the prismatic block 65, thereby Although the load 31 is prevented from being caught by a change in the slope angle by the slope start side edge portion 70, the slidable sheet 66 may be omitted if there is no such concern.

  In this embodiment, the wear-resistant sheet 63 is integrally laid on the slope surface 69 of the prismatic block 65 and the upper surface of the bottom portion 71 of the liquid-tight container 62, but the liquid-tight container 62 is sufficient. If there is a good wear resistance, it is possible to omit this, and to lay only the slidable sheet 66, and to change the load 31 by changing the slope angle by the slope start side edge 70 of the prismatic block 65. If there is no fear of being caught, the slidable sheet 66 may be further omitted.

  Further, in the above-described two modifications, instead of the prismatic block 65, if a prismatic block having a curved surface that is concave downward is used as a slope surface, the slidable sheet 66 is omitted, and the wear resistance is reduced. In each configuration in which the proof sheet 63 is omitted or the slidable sheet 66 and the wear resistant sheet 63 are omitted, smooth discharge of the load 31 can be expected.

  Further, in the present embodiment, the liquid-tight container of the present invention is provided so that the lower surface of the bottom portion 71 is in contact with the loading platform 2 and the outer peripheral surface of the peripheral wall portion 72 rising from the peripheral edge of the bottom portion is in contact with the cage. The prismatic block 65 is configured such that its installation surface 67 is in contact with the upper surface of the bottom portion 71 and the gate facing surface 68 is in contact with the inner peripheral surface of the peripheral wall portion 72. However, instead of this, the positional relationship between the prismatic block and the liquid-tight container may be changed upside down.

  FIG. 10 shows a dump truck loading / unloading device 101 in which a liquid-tight container 102 is laid on a prismatic block 5 installed on a loading platform 2. As can be seen from FIG. In the dense container 102, the lower surface of the bottom 103 as the first bottom is in contact with the upper surface of the loading platform 2, and the lower surface of the bottom 104 as the second bottom formed integrally with the bottom is installed on the loading platform 2. While being in contact with the slope surface 9 of the prismatic block 5, the outer peripheral surface of the peripheral wall portion 105 rising from the periphery of the bottom portion 103 and the bottom portion 104 is in contact with the cage so that the whole becomes a boat shape. It is configured.

  The peripheral wall portion 105 is configured by a rectangular front wall body and two side wall bodies having a trapezoidal shape, and is in contact with the front side wall and the side side two side walls, respectively.

  Even with this configuration, the same effects as the second embodiment can be obtained, and the liquid-tight container 102 is installed on the prismatic block 5, so that the slope start side edge 10 of the prismatic block 5 If it becomes possible to reduce the catching of the load 31 due to the change in the tilt angle, the slidable sheet 66 can be omitted, and the liquid-tight container 102 has wear resistance, The wear resistant sheet 63 can be omitted.

1,61 Dump truck loading / unloading tool 2 Loading platform 3 Gate
4 Dump truck 5,5a, 65 Square block 6,6a, 66 Sliding sheet 7,67 Installation surface 8,68 Gate facing surface 9,9a, 69 Slope surface 10,10a, 70 Slope start side edge 31 Load 51 Sheet Piece 62 Liquid-tight Container 63 Abrasion Resistant Sheet 71 Bottom 72 Peripheral Wall

Claims (6)

In the dump truck load ejector installed on the dump truck, at least a part of the tilt erected so as to surround the loading platform is constituted by a gate configured to rotate with the upper edge as a rotation axis,
The prismatic block is provided on the loading platform, and the prismatic block is configured such that, of the side surfaces parallel to the material axis, one of the side surfaces substantially orthogonal to each other faces downward and the other is the gate facing surface. It is configured such that the side face facing the gate and disposed obliquely with respect to the orthogonal side face can be installed on the loading platform in a posture that becomes an upward slope surface toward the upper edge of the gate. Load dumper for dump trucks. The prismatic block is provided with a liquid-tight container formed in a box shape so that an outer peripheral surface of a peripheral wall portion that abuts the lower surface of the bottom portion comes into contact with the loading platform and rises from a peripheral edge of the bottom portion, and comes into contact with the tilt. The dump truck load ejector according to claim 1, wherein the installation surface is in contact with the upper surface of the bottom portion and the gate facing surface is in contact with the inner peripheral surface of the peripheral wall portion. The lower surface of the first bottom portion is in contact with the cargo bed and the lower surface of the second bottom portion formed integrally with the first bottom portion is in contact with the slope surface of the prismatic block installed in the cargo bed, The dump truck of Claim 1 provided with the liquid-tight container formed in the boat shape so that the outer peripheral surface of the surrounding wall part which stands | starts up from the periphery of the said 1st bottom part and the said 2nd bottom part may contact | abut to the said cage. Load discharger for trucks. The prismatic block is formed so as to cover the top surface of the bottom of the liquid-tight container and the slope surface of the prismatic block in a state where the prism-shaped block is installed on the cargo bed with the liquid-tight container interposed therebetween, or An abrasion-resistant sheet configured to cover the upper surfaces of the first bottom portion and the second bottom portion constituting the liquid-tight container in a state where the prismatic block is directly installed on the loading platform. The load discharger for dump trucks according to claim 2 or claim 3 provided. The slidable sheet is laid so as to straddle the slope start side edge of the prismatic block or its equivalent position, and the slidable sheet has an upper surface of the cargo bed and a slope surface of the prismatic block. A first bottom portion that is formed so as to be integrally covered, and is formed so that a top surface of a bottom of the liquid-tight container and a slope surface of the prismatic block are integrally covered, and constitutes the liquid-tight container. 5. The dump truck load ejector according to claim 1, wherein the upper surface of each of the first and second bottom portions is covered, or the upper surface of the wear-resistant sheet is covered. . 6. The wear-resistant sheet or the slidable sheet in addition to the wear-resistant sheet is composed of a plurality of sheet pieces set so that the total width dimension is larger than the width of the loading platform. Load dumper for dump trucks.

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