JP3140481U - Loading platform structure such as dump trucks - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent snow adhesion on a loading platform such as a dump truck, solidification of loaded asphalt, freezing of earth and sand, etc. and comply with exhaust gas regulations, and efficient transportation work of snow, asphalt and earth and sand Of cargo bed structure such as dump trucks that can be used.
A dump truck 10 is equipped with a heater 12 that burns using the fuel of the dump truck 10 and is used for heat dissipation along the floor of the loading platform 20 or the corner of the loading platform of the dump truck 10. A duct is provided, the hot air outlet 16 of the heater 12 is connected to the inlet side of the duct, and the cargo bed 20 is heated by introducing warm air generated by the combustion of the heater 12 into the duct.
[Selection] Figure 1

Description

  The present invention relates to a load carrier structure such as a dump truck, and more particularly, to a load carrier structure of a dump truck used for transporting a material that is easily solidified such as snow, asphalt, coal tar and the like.

In cold regions such as Hokkaido, it is indispensable to remove snow during the winter season, around roads, houses, around the entrance and near the entrance of the garage. During winter, there is a shortage of deposits. Under such circumstances, it is necessary to perform a snow removal operation for regularly transporting the accumulated snow to a snow accumulation site provided in the suburbs using a dump truck. On the other hand, when the dump truck is loaded with snow and transported to the snow accumulation site, the snow does not fall completely even if the platform is tilted, and the load on the surface of the truck is reduced due to the snow being attached. There was a problem. In addition, when transporting asphalt or soil for customer use with a dump truck, it is necessary to prevent the asphalt from solidifying more than expected when it is loaded on a cold loading platform, or the soil moisture freezes. It was happening.

Conventionally, in order to solve such a problem, Japanese Patent Application Laid-Open No. 58-128934 discloses that a dump truck is provided with a flue, the engine exhaust is drawn into the flue, and the heat of the exhaust is utilized It can be said that the surface of the glass can be warmed, snow adhesion, freezing of earth and sand, and asphalt solidification can be prevented.

FIG. 7 schematically shows the case where the cargo bed is warmed using the exhaust of the engine. As shown in the figure, immediately after the muffler (silencer) 100, an introduction pipe (hose) 102 is connected, and the smoke provided by making the bottom of the loading platform 104 a double bottom from the introduction pipe 102 The engine exhaust is guided to the road 106, and the cargo bed 104 is warmed using the heat of the exhaust. The introduction pipe 102 is provided with a butterfly valve (not shown) so that the exhaust gas can be controlled. Exhaust gas introduced into the flue 106 is discharged from an escape hole (not shown) provided at the rear part of the loading platform.
JP 58-128934 A

Japanese Patent Application Laid-Open No. 2007-145171 discloses an invention in which a heating wire is disposed on a loading platform of a dump truck. According to the present invention, the weight of the loading platform is not increased, the loading platform can be efficiently heated, and it is possible to prevent freezing of earth and sand on the loading platform, adhesion of snow, and the like.
Japanese Unexamined Patent Publication No. 2007-145171

However, although the invention described in Japanese Patent Laid-Open No. 58-128934 (Patent Document 1) has the advantage that the structure is simple, the exhaust surface heat is utilized, so the temperature of the cargo bed surface is maintained. In order to achieve this, it is necessary to increase the engine speed. Especially when the engine is kept at a high speed during standby, it is preferable in terms of exhaust noise and engine noise in addition to exhaust gas problems in residential areas. I could not say.

Furthermore, the invention described in Japanese Patent Application Laid-Open No. 2007-145171 (Patent Document 2) needs to secure an amount of power sufficient to prevent snow from attaching and freezing with a heating wire. It is difficult to use in terms of battery capacity, and it is necessary to install a dedicated battery and generator separately, and there are economic problems such as vehicle production costs and running costs.

  The present invention has been proposed to cope with such various circumstances, and can prevent the adhesion of snow on a loading platform such as a dump truck, solidification of loaded asphalt, freezing of earth and sand, etc. and exhaust gas. The purpose is to provide a cargo bed structure such as a dump truck that is capable of complying with the laws and regulations, is excellent in cost, and can efficiently carry snow, asphalt, earth and sand.

In order to achieve the above object, the invention according to claim 1 is provided with a heater that burns using a fuel such as a dump truck in a dump truck and the like. A heat radiating duct is provided along the path of the hot air, and the hot air outlet of the heater is connected to the inlet side of the duct, and hot air generated by combustion of the heater is introduced into the duct. The cargo bed is heated.

The invention according to claim 2 is the device according to claim 1, wherein an air intake port of the heater is connected to an air intake means installed in the dump truck or the like, and an opening of the air intake means is a chassis of the dump truck or the like. It is characterized in that the air is taken in through the air intake means and burned through the heater.

As described above, according to the first aspect of the present invention, a heater such as a dump truck that burns using fuel is mounted, and the cargo bed is heated by the warm air generated by the combustion of the heater. For this reason, there is no effect on the muffler or the exhaust purification device, and it is not necessary to increase the rotation of the engine when the cargo bed is warmed, and transportation considering the environment such as noise and air pollution becomes possible.

In particular, according to the second aspect of the present invention, the air intake means for introducing air into the light oil heater has an opening above the chassis such as a dump truck. Intrusion of foreign matter can be prevented in advance. This makes it possible to efficiently carry out transportation work for a long time.

Hereinafter, a loading platform structure such as a dump truck according to the present invention will be described with reference to the accompanying drawings. FIG. 1 is a schematic perspective view of a dump truck to which a dump truck loading platform structure according to a first embodiment of the present invention is applied, and FIG. 2 is a schematic diagram showing a relationship between the loading platform and a heater.

As shown in FIGS. 1 and 2, light oil heaters 12, 12 are mounted on a chassis 14 in a dump truck 10 to which the loading platform structure of the present embodiment is applied, and these light oil heaters 12 include a dump truck 10. A fuel oil supply pipe (not shown) is connected from the fuel tank, and a tank already attached to the dump truck is used, so that a fuel tank for the light oil heater 12 is not required. Further, the light oil heater 12 has a burner incorporated therein, so that air sucked from an air intake port (not shown) is heated by the internal burner to be warm air, and blown out from the hot air outlet 16 of the via heater 12. It has become. The hot air outlet 16 is connected to an introduction pipe 18 that guides the hot air to a duct that will be described later.

  The dump truck 10 is provided with a loading platform 20, and the loading platform 20 can be appropriately moved from a horizontal state to an inclined state or vice versa by a hydraulic cylinder 22 attached to the chassis 14. As shown in FIG. 2, a receiving portion (reducer female side) 26 into which the insertion portion (reducer male side) 24 of the introduction pipe 18 is fitted is attached to the lower front portion of the loading platform 20. The receiving portion 26 of the loading platform 20 communicates with a heat radiating duct provided in the loading platform 20. The insertion portion 24 and the receiving portion 26 are fitted and communicated with the duct when the loading platform 20 is set in a horizontal state. On the other hand, when the loading platform 20 is inclined by the hydraulic cylinder 22, the insertion portion 24 and the receiving portion 26 are once separated.

3 is a plan view of the loading platform, FIG. 4 is a side sectional view and a rear view of the loading platform, and FIG. 5 is a detailed view of the main part of the loading platform.

As shown in FIGS. 1, 3 and 4, the loading platform 20 includes a floor 20 </ b> A, a front partition 20 </ b> B provided on the front side, side side turning parts 20 </ b> C and 20 </ b> C on both sides, and a rear side turning part 20 </ b> D. And is formed in a box shape with an open top. As shown in FIGS. 3 to 5, the steel plate is welded to the right-angled corners formed between the floor portion 20 </ b> A and the front partition portion 20 </ b> B, and the floor portion 20 </ b> A and the side turn-up portions 20 </ b> C and 20 </ b> C. Thus, a heat radiating duct 28 having a right triangle cross section is formed, and the hot air introduced from the receiving portion 26 is guided from the front side to the rear side of the loading platform 20. Discharge ports 30 and 30 are provided at the rear of the ducts 28 and 28 so that warm air flowing through the duct 28 to the rear is released to the outside.

As described above, the heat radiating duct 28 is arranged at the corner of the loading platform 20, and the warm air heated by the light oil heater 12 is introduced into the duct 28. The warmth is focused on. As a result, it is possible to prevent snow from entering the inside of the loading platform 20 during snow removal work, freezing during transport of earth and sand, and solidification more than necessary such as asphalt. Further, in this embodiment, since the light oil heater 12 is used as a heat source of the warm air introduced into the duct 28, fuel is supplied to the heater 12 using a fuel tank of an already installed vehicle. This eliminates the need to install a dedicated tank separately, simplifying the structure and reducing costs. Furthermore, since it is not necessary to modify the exhaust system of the engine such as a muffler as compared with the case of using conventional exhaust, it does not affect the exhaust gas countermeasure purifying device already applied to the vehicle.

Next, a second embodiment of a cargo bed structure such as a dump truck according to the present invention will be described. FIG. 6 is a schematic perspective view showing the main part of the loading platform structure of the second embodiment. In the first embodiment described above, the air at the time of combustion in the light oil heater 12 directly takes outside air into the light oil heater 12, but in the second embodiment, an air intake pipe (attached to the cargo bed 20 ( The difference is that the air is introduced into the light oil heaters 34 and 34 through the air intake means 32 and 32. In addition, since the structure of a loading platform etc. are the same as that of 1st Embodiment, the description is abbreviate | omitted.

As shown in FIG. 6, the air intake pipes (air intake means) 32 and 32 are installed so that the opening 32 </ b> A is located above the chassis 14 with respect to the front partition 20 </ b> B of the loading platform 20. In addition, a mesh or the like (not shown) is attached to the opening 32A to prevent foreign matters such as dust and gravel from entering the air intake pipe 32. Although not shown in FIG. 6, a receiving portion (reducer female side) is attached to the lower portion of the air intake pipe 32, and when the loading platform 20 is level, the insertion portion (reducer) of the air introduction pipe 34 </ b> A of the light oil heater 34. The male side) can be fitted and separated when the loading platform 20 is inclined. The structure of the hot air outlet 34B of the light oil heater 34 is the same as that of the first embodiment.

As described above, in the second embodiment, when air is introduced into the light oil heater 34, the opening 32A faces upward and the air intake pipe 32 installed above the chassis 14 is used. Therefore, it is possible to prevent foreign matters such as dust and mud from entering the heater 34 in advance. As a result, even when transport work is performed for a long time, it is possible to perform efficient transport, for example, the frequency of cleaning the air filter installed in the heater 34 is reduced.

In the above embodiment, the duct 28 is provided at the corner of the loading platform 20, but is not limited thereto, and for example, the duct 28 is arranged so as to linearly extend to the center of the floor portion 20 </ b> A of the loading platform 20. Or the arrangement | positioning method can be changed suitably according to the use of the vehicle installed, such as arrange | positioning several ducts extended in parallel with the floor part 20A of the loading platform 20 in parallel. In addition, although a light oil heater is used as a heat source, in the case of a truck using other fuel such as gasoline, it is not necessary to install a separate tank by using the fuel used for the engine.

As described above, according to the present embodiment, when the cargo bed 20 is heated, the warm air of a separately installed light oil heater is used instead of the exhaust of the engine, so that an exhaust system such as a muffler and a catalyst is adversely affected. There is no effect. In addition, the load carrier 20 can be heated without having to keep the engine at high speed during standby for snow removal work, etc., so that less exhaust is emitted from the engine and noise from the engine is suppressed. can do.

As explained above, according to the present invention, it is possible to prevent the adhesion of snow on the loading platform, solidification of loaded asphalt, freezing of earth and sand, etc. Has the advantage of being inexpensive.

1 is a schematic perspective view of a dump truck to which a dump truck bed structure according to a first embodiment of the present invention is applied. Similarly, it is the schematic which shows the relationship between the loading platform and heater in the loading platform structure of the dump truck which concerns on 1st Embodiment. Similarly, it is a top view of the loading platform in the loading platform structure of the dump truck according to the first embodiment. Similarly, it is the side sectional view and the rear view of the loading platform in the loading platform structure of the dump truck according to the first embodiment. Similarly, it is a principal part detail drawing of the loading platform in the loading platform structure of the dump truck according to the first embodiment. It is the schematic perspective view which showed the principal part of the loading platform structure of the dump truck which concerns on 2nd Embodiment. It is the top view and side view which show schematic structure of the conventional dump truck which warms a loading platform using exhaust_gas | exhaustion of an engine.

Explanation of symbols

10 Dump truck
12 Light oil heater 14 Chassis
16 Hot air outlet
20 cargo bed
20A floor
20B Front partition
20C Side punching section
20D Rear groin
22 Hydraulic cylinder 24 Insertion part (reducer male side)
26 Receiving part (Reducer female side)
28 Duct
30 outlet
32 Air intake pipe
32A opening
34 Light oil heater
34A Air introduction pipe
34B Hot air outlet

Claims (2)

A dump truck or the like is equipped with a heater that burns using fuel such as the dump truck, and along the floor or the corner of the cargo bed such as the dump truck, a duct for heat dissipation that becomes a path for hot air is provided, A cargo bed structure such as a dump truck, wherein the cargo bed is heated by connecting a hot air outlet of the heater to the inlet side of the duct and introducing warm air generated by combustion of the heater into the duct. . The air intake port in the heater is connected to air intake means installed in the dump truck or the like, and the opening of the air intake means is located above the chassis of the dump truck or the like, and the air intake means is The load carrier structure of a dump truck or the like according to claim 1, wherein air is introduced into the heater through the heater and burned.

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