JP6915777B2 - Discharge jig and buried material discharge method - Google Patents

Description

The present invention relates to a discharge jig that is attached to the loading platform of a dump truck and discharges the buried material loaded on the loading platform, and a method for discharging the buried material using the discharging jig.

In recent years, underground wiring has become widespread from the viewpoint of consideration for the landscape and safety in the city. In underground wiring, pipes are buried underground, and power cables, communication cables, etc. are laid in the pipes. The same-day burial method is known as one of the methods used in such works.

In the same-day burial method, the pavement of the section to be laid is first broken and the soil under the pavement is excavated. Then, after providing a soil stopper at the excavated part, a pipe is installed, and the excavated part is backfilled with a buried material such as sand or soil. After that, the soil stopper will be removed and the road will be restored. The construction method that completes the work related to underground wiring in one day is called the same-day burial construction method.

In the above-mentioned same-day burial method, excavation is performed using a backhoe, and the backhoe is also used for backhoeing work. Specifically, the buried material for backfilling the excavated part is loaded on the loading platform of the dump truck and transported to the work site. However, when the width of the loading platform of the dump truck is wider than the width of the excavation site where the backfilling is performed, when the buried material is to be directly injected from the loading platform into the excavation site, the buried material is scattered around the excavation site.

For this reason, at present, the buried material loaded on the loading platform of the dump truck is scooped up with a backhoe and put into the excavation site. As described above, when the backhoe is used for both excavation and backfilling, the work efficiency is lowered because the other work cannot be performed while one work is being performed.

Since the same-day burial method is a method of restricting traffic on the road and implementing it, it is required to release the road as soon as possible. Therefore, shortening the backfilling work time is indispensable, and in order to achieve this, it is necessary to concentrate the backhoe on the excavation work, which is the original role. As a means to concentrate the backhoe on the excavation work, that is, to prevent the backhoe from being used for the backhoeing work, it is conceivable to put the buried material directly from the loading platform of the dump truck into the excavation site.

For example, Patent Document 1 discloses a cargo discharge assisting unit attached to a dump truck. In the cargo discharge assisting unit of Patent Document 1, the internal space of the dump truck is divided into a loading space and a non-loading space by a guide member. By using the cargo discharge assisting unit of Patent Document 1, it is considered that the discharge width of the load from the loading platform can be narrowed, so that the scattering of the load to the surroundings can be suppressed.

Japanese Patent Application No. 2015-85929

In Patent Document 1, the guide member is attached to the loading platform by locking the engaging member attached to one end of the guide member to the side plate of the loading platform. With such a configuration, when the loading platform is tilted and the load is discharged from the loading platform, there is a concern that the guide member is lowered by the load of the load and slides down to the lower part of the tilt plate. Therefore, there is room for further improvement in the technique of Patent Document 1.

In view of such a problem, the present invention can be stably attached to the loading platform of a dunk truck, and the work time can be shortened by being able to directly load the buried material from the dump truck. The purpose is to provide.

In order to solve the above problems, a typical configuration of the discharge jig according to the present invention is a discharge jig attached to the loading platform of the dump truck and discharging the buried material loaded on the loading platform, and is left and right of the loading platform. A pair of leg members arranged along each side plate, a pair of plate members rotatably connected to the front end of the leg member on the vehicle front side, and a predetermined end portion of the pair of plate materials on the vehicle rear side are connected to each other. It is provided with a connecting material that forms a width opening and a fall-off prevention member that is passed to the rear ends of the left and right side plates, and the legs and the rear end of the plate material are prevented from falling off when the loading platform is tilted. It is characterized in that it comes into contact with a member.

According to the above configuration, when the loading platform is tilted, the end portions of the leg material and the plate material on the rear side of the vehicle come into contact with the dropout prevention member. As a result, when the buried material is discharged by tilting the loading platform, even if a downward load is applied to the discharging jig due to the weight of the buried material, the discharging jig is prevented from being displaced outward below the loading platform. Is done. Therefore, the discharge jig can be stably attached to the loading platform of the dump truck.

Then, by attaching the discharge jig to the loading platform, the width for discharging the buried material is not the width in the vehicle width direction of the load but the width of the opening of the connecting material. As a result, the buried material can be directly injected into the excavation site from the dump truck without scattering the buried material around. Therefore, the backhoe can be devoted to the excavation work, and the work time can be shortened.

It is preferable that the connecting material can adjust the connecting position with the plate material. According to such a configuration, the width of the discharge jig can be adjusted by adjusting the connecting position of the connecting material. Therefore, the same discharge jig can be used even for dump trucks having different loading platform widths.

The width of the dropout prevention member may be adjustable. According to such a configuration, it is possible to use a common dropout prevention member even for dump trucks having different widths of the loading platform, and it is possible to reduce the cost of parts.

In order to solve the above problems, a typical configuration of the buried material discharge method according to the present invention is a buried material discharge method that is attached to the loading platform of a dump truck and discharges the buried material loaded on the loading platform. The discharge jig is attached to the loading platform, the buried material is loaded on the loading platform, and the loading platform is tilted at the work site so that the leg material of the discharging jig and the end of the plate material on the rear side of the vehicle are brought into contact with the dropout prevention member of the loading platform. It is characterized in that the buried material is discharged from the opening of the discharge jig with the tilt plate in the open state. The components corresponding to the technical idea of the discharge jig described above and their explanations are also applied to the buried material discharge method.

According to the present invention, it is possible to provide a discharge jig and a method for discharging a buried material, which can be stably attached to a loading platform of a dunk truck and can shorten a working time by being able to directly load a buried material from a dump truck. can.

It is a figure explaining the dump truck. It is a figure explaining the discharge jig which concerns on this embodiment. It is a top view of the discharge jig which concerns on this embodiment. It is a figure which shows the state which attached the discharge jig to the loading platform. It is a figure explaining the buried material discharge method using the discharge jig.

Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The dimensions, materials, other specific numerical values, etc. shown in the embodiment are merely examples for facilitating the understanding of the invention, and do not limit the present invention unless otherwise specified. In the present specification and drawings, elements having substantially the same function and configuration are designated by the same reference numerals to omit duplicate description, and elements not directly related to the present invention are not shown. do.

FIG. 1 is a diagram illustrating a dump truck 200. As shown in FIG. 1, a loading platform 210 that can be inclined upward is provided at the rear of the dump truck 200. The loading platform 210 includes a front plate 212, a bottom plate 214, a pair of left and right side plates 220a / 220b, and a tilt plate 230.

Side plates 220a and 220b are attached to the left and right sides of the bottom plate 214, respectively. A tilt plate 230 is attached to the rear ends of the side plates 220a and 220b. Specifically, side plate side connecting portions 222a and 222b are provided above the rear ends of the side plates 220a and 220b, respectively. The tilt plate side connecting portions 232a and 232b are provided on the upper portions of the left and right ends of the tilt plate 230, respectively. By connecting these side plate side connecting portions 222a / 222b and the tilting plate side connecting portions 232a / 232b, the tilting plate 230 is rotatably attached to the rear end of the side plate 220a / 220b with the upper end as the center.

A buried material (not shown) is loaded on the loading platform 210 described above. Examples of the burial material include earth and sand such as soil, gravel, and crushed stone. As shown in FIG. 1, by rotating the loading platform 210 so as to open the tilted plate 230, the buried material is discharged from between the rear ends of the side plates 220a and 220b of the loading platform 210 and the tilting plate 230. NS. Then, the discharge jig 100 described below is attached to the loading platform 210.

FIG. 2 is a diagram illustrating a discharge jig 100 according to the present embodiment. The discharge jig 100 shown in FIG. 2 is a jig for limiting the width of discharging the buried material loaded on the loading platform 210. As shown in FIG. 2A, the discharge jig 100 includes a pair of leg members 110a / 110b, a pair of plate members 120a / 120b, a connecting member 130, and a dropout prevention member 140. The pair of leg members 110a and 110b are members arranged along the left and right side plates 220a and 220b of the loading platform 210, respectively.

The pair of leg members 110a / 110b and the pair of plate members 120a / 120b are rotatably connected by a connecting portion 122 at the end on the front side of the vehicle. Therefore, the leg members 110a / 110b and the plate members 120a / 120b can be closed and stored as shown in FIG. (2). This makes it easy to store and transport the discharge jig 100.

Further, plate-shaped holding metal fittings 112 are rotatably attached to the leg members 110a and 110b so as to be hooked on pins 126 attached to the plate members 120a and 120b. As a result, when the leg members 110a / 110b and the plate members 120a / 120b are opened as shown in FIG. 2A and put into use, the holding metal fitting 112 is hooked on the pin 126 to form a stick. It prevents the plate material 120b from closing due to the weight of the material.

The connecting member 130 is a member for fixing the opening at the rear end of the pair of plate members 120a and 120b on the rear side of the vehicle. The connecting member 130 is a rod-shaped member, and has one right side connecting portion 132 on the side connected to the right side plate material 120b, and a plurality of connecting members 130 on the side connected to the left side plate material 120a (in the present embodiment). It has the left side connecting portions 134a, 134b, and 134c of (exemplify three). The right side connecting portion 132 and the left side connecting portions 134a, 134b, and 134c are connected to the through holes 124 provided at the ends of the plate members 120a and 120b.

FIG. 3 is a plan view of the discharge jig 100 according to the present embodiment. 3 (a) and 3 (b) show a state in which the loading platform 210 is attached to the loading platform 210 of the dump truck 200 having a different width.

According to the above configuration, the width of the discharge jig 100 can be changed by changing the interval between the plate members 120a and 120b by changing the connection position of the connecting member 130 with respect to the plate member 120a. For example, in FIG. 3A, the plate member 120a is connected to the innermost left side connecting portion 134a. On the other hand, in FIG. 3B, the plate member 120a is connected to the outermost left side connecting portion 134c. As a result, the opening width of the discharge jig 100 is wider in the state of FIG. 3 (b) than in the state of FIG. 3 (a). Therefore, the same discharge jig 100 can be used even for dump trucks 200 having different widths of the loading platform 210.

Further, since the connecting position between the connecting member 130 and the plate member 120a can be adjusted as described above, the width of the opening in the connecting member 130 can also be adjusted. That is, the opening is the outermost left side connecting portion 134c as shown in FIG. 3 (b) with respect to the width W1 when the plate material 120a is connected at the innermost left side connecting portion 134a as shown in FIG. 3 (a). The width W2 when the plate members 120a are connected is wider. As a result, the width of the opening can be adjusted according to the excavation location by changing the connection position of the plate member 120a with respect to the connecting member 130.

In the present embodiment, a configuration in which one right-side connecting portion and a plurality of left-side connecting portions are provided has been illustrated, but the present invention is not limited to this. For example, a plurality of right side connecting portions may be provided and one left side connecting portion may be provided, or one or more right side connecting portions and one left side connecting portion may be provided.

Further, as a method of implementing the above configuration, the right side connecting portion 132 and the left connecting portion 134a, 134b, 134c of the connecting member 130 are made into either a pin or a hole, and the plate members 120a, 120b are attached to the rear end of the vehicle. It was assumed that the other would be provided, but it is not limited to this. It is also possible to apply other known configurations as a method for adjusting the connecting position between the connecting member 130 and the plate members 120a / 120b.

FIG. 4 is a diagram showing a state in which the discharge jig 100 is attached to the loading platform 210. FIG. 4 (a) is a diagram showing the entire discharge jig 100 attached to the loading platform 210, and FIG. 4 (b) is an enlargement of the inside of the broken line circle of FIG. 4 (a) observed from the inside of the loading platform 210. It is a perspective view.

As shown in FIG. 4A, the drop-off prevention member 140 is delivered to the rear ends of the left and right side plates 220a and 220b of the loading platform 210 to prevent the discharge jig 100 from falling off behind the loading platform. Specifically, the dropout prevention member 140 includes a rod-shaped portion 142 and a pair of locking portions 144a and 144b fixed to both ends of the rod-shaped portion 142. As shown in FIG. 4B, the locking portion 144b is an L-shaped member (the same applies to the locking portion 144a), and is locked to the side plate side connecting portion 222b of the side plate 220b. As a result, the dropout prevention member 140 is passed between the left and right side plates 220a and 220b via the locking portions 144a and 144b.

As shown in FIG. 4A, when the loading platform 210 is tilted, the legs 110a / 110b of the discharge jig 100 and the rear ends of the plate members 120a / 120b come into contact with the dropout prevention member 140. As a result, when the loading platform 210 is tilted to discharge the buried material, even if a downward load is applied to the discharging jig 100 due to the weight of the buried material, the leg members 110a / 110b and the plate members 120a / 120b are rearward of the vehicle. The end on the side comes into contact with the dropout prevention member 140. Therefore, the discharge jig 100 can be prevented from slipping (falling off) outside the loading platform 210, that is, below the lower ends of the side plates 220a and 220b, and the discharging jig 100 can be stably attached to the loading platform 210 of the dump truck 200. ..

As described above, when the loading platform 210 is tilted and rotated so as to open the tilt plate 230, the buried material loaded on the loading platform 210 is discharged. At this time, since the discharge jig 100 is attached to the loading platform 210, the width for discharging the buried material is not the width in the vehicle width direction of the loading platform 210, but the widths W1 and W2 of the opening of the connecting member 130 (FIG. 3). See). As a result, even when the buried material is directly thrown into the excavated part from the dump truck 200, the buried material does not scatter around the excavated part. Therefore, the backhoe can be devoted to the excavation work, and the work time can be shortened.

Further, in the discharge jig 100 of the present embodiment, the width of the dropout prevention member 140 can be adjusted. Specifically, as shown in FIG. 4B, the locking portions 144a and 144b of the dropout prevention member 140 are provided with jacks 146. That is, the locking portions 144a and 144b are manufactured using a jack base.

According to the above configuration, the width of the fall prevention member 140 can be adjusted by rotating the handle of the jack 146. Therefore, even if the dump trucks 200 have different widths of the loading platform 210, the common dropout prevention member 140 can be used, and the component cost can be reduced.

Next, a method of discharging the buried material using the discharge jig 100 described above will be described. In the buried material discharge method of the present embodiment, the buried material attached to the loading platform 210 of the dump truck 200 and loaded on the loading platform 210 is discharged. First, as shown in FIG. 1, the above-mentioned discharge jig 100 is attached to the loading platform 210. Then, with the loading platform 210 horizontal, the buried material is loaded on the loading platform 210 and transported to the work site.

FIG. 5 is a diagram illustrating a method of discharging the buried material using the discharge jig 100 described above. The groove 320 for burying the pipe 310 is divided into an excavation section, a piping section, and a backfill section. In the excavation section, the groove 320 is excavated by the backhoe 300. In the pipe section, the worker 330 installs the pipe 310 and installs the partition 340 to form a boundary (form) with the backfill section.

Then, in the backfill section, as shown in FIG. 5, the loading platform 210 is tilted at the work site, the tilting plate 230 of the loading platform 210 is opened, and the buried material is discharged from the opening of the discharge jig 100. At this time, in the buried material discharging method of the present embodiment, since the discharging jig 100 is attached to the loading platform 210, the buried material is discharged not from the entire width of the loading platform 210 but only from the openings of the plate members 120a and 120b. .. Therefore, the buried material can be directly put into the excavated part from the dump truck 200 without scattering the buried material around the excavated part (groove 320). Therefore, the backhoe 300 can be devoted to the excavation work, and the excavation work, the piping work, and the backfilling work can be performed in parallel, so that the work time can be shortened.

Although preferred embodiments of the present invention have been described above with reference to the accompanying drawings, it goes without saying that the present invention is not limited to such examples. It is clear that a person skilled in the art can come up with various modifications or modifications within the scope of the claims, which naturally belong to the technical scope of the present invention. Understood.

INDUSTRIAL APPLICABILITY The present invention can be used for a discharge jig attached to a loading platform of a dump truck and discharging a buried material loaded on the loading platform, and a method for discharging a buried material using such a discharge jig.

100 ... Discharge jig, 110a ... Leg material, 110b ... Leg material, 112 ... Holding metal fitting, 120a ... Plate material, 120b ... Plate material, 122 ... Connecting part, 124 ... Through hole, 126 ... Pin, 130 ... Connecting material, 132 ... Right side connecting part, 134a ... Left side connecting part, 134b ... Left side connecting part, 134c ... Left side connecting part, 140 ... Fall prevention member, 142 ... Rod-shaped part, 144a ... Locking part, 144b ... Locking part, 146 ... Adjusting part, 200 ... Dump truck, 210 ... Loading platform, 212 ... Front plate, 214 ... Bottom plate, 220a ... Side plate, 220b ... Side plate, 222a ... Side plate side connection, 222b ... Side plate side connection, 230 ... Connection part, 232b ... Connection part on the tilt plate side, 300 ... Back ho, 310 ... Piping, 320 ... Groove, 330 ... Worker ... 340 ... Partition

Claims (3)

It is a discharge jig that is attached to the loading platform of a dump truck and discharges the buried material loaded on the loading platform.
A pair of leg timbers arranged along the left and right side plates of the loading platform,
A pair of plate members rotatably connected to the front end of the leg member on the vehicle front side,
A connecting material that connects the ends of the pair of plate materials on the rear side of the vehicle to form an opening having a predetermined width, and
The fall-out prevention member delivered to the rear ends of the left and right side plates,
With
The fall-prevention member has an adjustable width and is adjustable in width.
A discharge jig characterized in that the leg member and the end portion of the plate member on the rear side of the vehicle come into contact with the dropout prevention member in a state where the loading platform is tilted. The discharge jig according to claim 1, wherein the connecting material can adjust the connecting position with the plate material. It is a buried material discharge method that is attached to the loading platform of a dump truck and discharges the buried material loaded on the loading platform.
Attach the discharge jig according to claim 1 or 2 to the loading platform,
The buried material is loaded on the loading platform,
At the work site, the loading platform is tilted so that the leg material of the discharge jig and the end portion of the plate material on the rear side of the vehicle are brought into contact with the dropout prevention member.
A method for discharging a buried material, which comprises discharging the buried material from an opening of the discharging jig with the tilting plate of the loading platform open.

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